TY  - CONF
AU  - Milosevic, Ana
AU  - Milosevic, Katarina
AU  - Nikolic, Ljiljana
AU  - Bogdanović Pristov, Jelena
AU  - Božić, Iva
AU  - Zivkovic, Anica
AU  - Lavrnja, Irena
AU  - Savic, Danijela
AU  - Janjic, Marija
AU  - Bjelobaba, Ivana
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2019
AB  - Gonadotropin-releasing hormone (GnRH) is a hypothalamic decapeptide that controls 
mammalian reproduction by acting on its receptor (GnRHR) expressed on pituitary 
gonadotrope cells.  While GnRHR signaling in gonadotropes is well described, 
knowledge of GnRHR activation-related events at extrapituitary sites including 
neurons is limited. It was proposed that GnRH analogs (GnRHa) induce distinct 
changes in hippocampal gene expression, emotional processes, and cognitive 
functions.  
To explore neuronal GnRHR signaling we used the human neuroblastoma cell line 
SH-SY5Y. Further, we explored the regional expression of Gnrhr in rat brain and 
investigated the expression of several relevant genes in the hippocampus and preoptic 
area of peripubertal male rats treated with GnRHa. 
GNRHR is expressed in SH-SY5Y cell line, but its expression does not change after 
adding GnRHa in the incubation media. Electrophysiological recordings confirmed 
that GnRHa induced membrane depolarization but could not evoke action potentials. 
In the rat brain, Gnrhr expression could be detected in the hippocampus, amygdala, 
and hypothalamus, including the preoptic area. Prolonged treatment of peripubertal 
rats with GnRHa had no effect on the expression of genes in the hippocampus 
previously shown to be affected in the sheep model of delayed puberty.  
These results imply that neuronal GnRHR is either differently coupled (not coupled 
with Gq/11 protein), or that its membrane density is too low to induce transcriptional 
events. More investigation is needed to elucidate the role(s) of GnRH-GnRHR 
signaling in the brain.
PB  - Belgrade: Serbian Neuroscience Society
C3  - 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS
T1  - GnRHR signaling in neuronal cells: in vitro and in vivo data
SP  - 53
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2019
ER  - 

@conference{
author = "Milosevic, Ana and Milosevic, Katarina and Nikolic, Ljiljana and Bogdanović Pristov, Jelena and Božić, Iva and Zivkovic, Anica and Lavrnja, Irena and Savic, Danijela and Janjic, Marija and Bjelobaba, Ivana",
year = "2023",
abstract = "Gonadotropin-releasing hormone (GnRH) is a hypothalamic decapeptide that controls 
mammalian reproduction by acting on its receptor (GnRHR) expressed on pituitary 
gonadotrope cells.  While GnRHR signaling in gonadotropes is well described, 
knowledge of GnRHR activation-related events at extrapituitary sites including 
neurons is limited. It was proposed that GnRH analogs (GnRHa) induce distinct 
changes in hippocampal gene expression, emotional processes, and cognitive 
functions.  
To explore neuronal GnRHR signaling we used the human neuroblastoma cell line 
SH-SY5Y. Further, we explored the regional expression of Gnrhr in rat brain and 
investigated the expression of several relevant genes in the hippocampus and preoptic 
area of peripubertal male rats treated with GnRHa. 
GNRHR is expressed in SH-SY5Y cell line, but its expression does not change after 
adding GnRHa in the incubation media. Electrophysiological recordings confirmed 
that GnRHa induced membrane depolarization but could not evoke action potentials. 
In the rat brain, Gnrhr expression could be detected in the hippocampus, amygdala, 
and hypothalamus, including the preoptic area. Prolonged treatment of peripubertal 
rats with GnRHa had no effect on the expression of genes in the hippocampus 
previously shown to be affected in the sheep model of delayed puberty.  
These results imply that neuronal GnRHR is either differently coupled (not coupled 
with Gq/11 protein), or that its membrane density is too low to induce transcriptional 
events. More investigation is needed to elucidate the role(s) of GnRH-GnRHR 
signaling in the brain.",
publisher = "Belgrade: Serbian Neuroscience Society",
journal = "8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS",
title = "GnRHR signaling in neuronal cells: in vitro and in vivo data",
pages = "53",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2019"
}

Milosevic, A., Milosevic, K., Nikolic, L., Bogdanović Pristov, J., Božić, I., Zivkovic, A., Lavrnja, I., Savic, D., Janjic, M.,& Bjelobaba, I.. (2023). GnRHR signaling in neuronal cells: in vitro and in vivo data. in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS
Belgrade: Serbian Neuroscience Society., 53.
https://hdl.handle.net/21.15107/rcub_rimsi_2019

Milosevic A, Milosevic K, Nikolic L, Bogdanović Pristov J, Božić I, Zivkovic A, Lavrnja I, Savic D, Janjic M, Bjelobaba I. GnRHR signaling in neuronal cells: in vitro and in vivo data. in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS. 2023;:53.
https://hdl.handle.net/21.15107/rcub_rimsi_2019 .

Milosevic, Ana, Milosevic, Katarina, Nikolic, Ljiljana, Bogdanović Pristov, Jelena, Božić, Iva, Zivkovic, Anica, Lavrnja, Irena, Savic, Danijela, Janjic, Marija, Bjelobaba, Ivana, "GnRHR signaling in neuronal cells: in vitro and in vivo data" in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS (2023):53,
https://hdl.handle.net/21.15107/rcub_rimsi_2019 .

TY  - CONF
AU  - Nikolic, Ljiljana
AU  - Bataveljic, Danijela
AU  - Bijelic, Dunja
AU  - Milicevic, Katarina
AU  - Bogdanović Pristov, Jelena
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2015
AB  - The neurotransmitter norepinephrine (NE) plays a central role in regulating arousal, 
attention, cognitive function and stress responses. Unlike fast neurotransmitters which 
act at synapses, NE is released in the neuropil and performs multiple targeting in the 
surrounding area. The glial cells astrocytes are a direct target of NE, as they express 
all adrenergic receptor subtypes and respond with Ca2+ increases to NE. Astroglial 
responses elicited by strong and transient increases of NE in the brain are well studied, 
but the effect of a low background NE concentration on astrocytes is unknown. This 
background level of NE is maintained by basal noradrenergic activity and is 
constantly present in the brain. Therefore, the response of astrocytes to the 
background NE could have been unintentionally evoked in previous studies but its 
effect overlooked. 
To assess action of background NE on astrocytes we combined the whole-cell patch
clamp, immunohistochemistry, Ca2+ imaging and pharmacology. We used cultured 
cortical astrocytes to bypass NE targeting of multiple cell types. 
We show that cortical astrocytes detect and respond to the background NE 
concentration with an increase in intracellular Ca2+. This Ca2+ liberated from 
intracellular stores further increased large-conductance, Ca2+-sensitive potassium 
(BK) currents in astrocytes. Notably, immunohistochemistry data showed that BK 
channels and alpha 1 adrenoreceptor are highly expressed in astrocytes in the rat 
cortex.   Furthermore, stimulation of astrocytes by background NE was inhibited by 
alpha-adrenoceptor antagonist. 
Our results suggest that astrocytes maintain basal brain activity by perceiving and 
responding to the background NE.
PB  - Serbian Neuroscience Society, Belgrade
C3  - 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS
T1  - Background norepinephrine impacts activity of cortical astrocytes
SP  - 51
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2015
ER  - 

@conference{
author = "Nikolic, Ljiljana and Bataveljic, Danijela and Bijelic, Dunja and Milicevic, Katarina and Bogdanović Pristov, Jelena",
year = "2023",
abstract = "The neurotransmitter norepinephrine (NE) plays a central role in regulating arousal, 
attention, cognitive function and stress responses. Unlike fast neurotransmitters which 
act at synapses, NE is released in the neuropil and performs multiple targeting in the 
surrounding area. The glial cells astrocytes are a direct target of NE, as they express 
all adrenergic receptor subtypes and respond with Ca2+ increases to NE. Astroglial 
responses elicited by strong and transient increases of NE in the brain are well studied, 
but the effect of a low background NE concentration on astrocytes is unknown. This 
background level of NE is maintained by basal noradrenergic activity and is 
constantly present in the brain. Therefore, the response of astrocytes to the 
background NE could have been unintentionally evoked in previous studies but its 
effect overlooked. 
To assess action of background NE on astrocytes we combined the whole-cell patch
clamp, immunohistochemistry, Ca2+ imaging and pharmacology. We used cultured 
cortical astrocytes to bypass NE targeting of multiple cell types. 
We show that cortical astrocytes detect and respond to the background NE 
concentration with an increase in intracellular Ca2+. This Ca2+ liberated from 
intracellular stores further increased large-conductance, Ca2+-sensitive potassium 
(BK) currents in astrocytes. Notably, immunohistochemistry data showed that BK 
channels and alpha 1 adrenoreceptor are highly expressed in astrocytes in the rat 
cortex.   Furthermore, stimulation of astrocytes by background NE was inhibited by 
alpha-adrenoceptor antagonist. 
Our results suggest that astrocytes maintain basal brain activity by perceiving and 
responding to the background NE.",
publisher = "Serbian Neuroscience Society, Belgrade",
journal = "8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS",
title = "Background norepinephrine impacts activity of cortical astrocytes",
pages = "51",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2015"
}

Nikolic, L., Bataveljic, D., Bijelic, D., Milicevic, K.,& Bogdanović Pristov, J.. (2023). Background norepinephrine impacts activity of cortical astrocytes. in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS
Serbian Neuroscience Society, Belgrade., 51.
https://hdl.handle.net/21.15107/rcub_rimsi_2015

Nikolic L, Bataveljic D, Bijelic D, Milicevic K, Bogdanović Pristov J. Background norepinephrine impacts activity of cortical astrocytes. in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS. 2023;:51.
https://hdl.handle.net/21.15107/rcub_rimsi_2015 .

Nikolic, Ljiljana, Bataveljic, Danijela, Bijelic, Dunja, Milicevic, Katarina, Bogdanović Pristov, Jelena, "Background norepinephrine impacts activity of cortical astrocytes" in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS (2023):51,
https://hdl.handle.net/21.15107/rcub_rimsi_2015 .

TY  - CONF
AU  - Milicevic, Katarina
AU  - Bataveljic, Danijela
AU  - Bogdanović Pristov, Jelena
AU  - Andjus, Pavle
AU  - Nikolic, Ljiljana
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2009
AB  - Astrocytes form a dense meshwork throughout the central nervous system (CNS) which qualifies them to perform interactive maintenance functions with neighboring cells. In neuroinflammation, this astroglial cell-to-cell interaction varies which can either promote or lessen pathological processes (1,2). In multiple sclerosis (MS), astrocytes engage in an interaction with immune cells which drives neurodegeneration by creating and sustaining an inflammatory CNS environment  (3).  Previously,  we  showed  that  CNS-infiltrated  immune  cells  (CNS-IICs)  in  the  experimental autoimmune  encephalomyelitis  (EAE)  rat,  rapidly  alter  the  activity  pattern  of  astrocytes  by  activating  glial  P2X7receptor  (P2X7R)(4).  In  the  present  study,  we  aimed  to  identify  the  properties of  astroglial  P2X7R  in  EAE  and  to identify mechanisms responsible for astrocyte activation in the presence of CNS-IICs (CD4+T cells). In this respect, spinal cords from rats at the peak of EAE and age-matched healthy controls were isolated and protein expression of P2X7R and connexin-43 (Cx-43) were investigated. P2X7R protein expression was decreased in the lumbar spinal cord, while Cx-43 did not change. Next, we found that P2X7R and Cx-43 proteins interact in the lumbar spinal cord since both the monomer and the dimer Cx-43 co-immunoprecipitate with P2X7R. Even though the colocalization of P2X7R and Cx-43 was decreased in EAE compared to the control, the analysis of the distribution of astroglial P2X7R and Cx-43 and their colocalization in the radius of 20 μm from the infiltrated CD4+T cell center showed that astroglial P2X7R and Cx-43 are specifically associated and concentrated in the proximity of CNS-IICs in the EAE spinal cord. Subsequently,  to  achieve  an  unambiguous  analysis  of  astrocyte-immune  cell  interaction,  we  monitored  Ca2+dynamics in Fluo-4 labeled cultured naïve astrocytes following brief bath-application of CNS-IICs isolated and purified from spinal cords of EAE rats. Our data suggest that astroglial αvβ3-integrin acted upstream of P2X7R activation and is likely involved in establishing initial contact of astrocytes with CNS-IICs since astrocytic αvβ3-integrin block reduced the astrocytic Ca2+response to CNS-IIC application. Furthermore, astrocytes challenged with CGP31157 (blocker of mNCLX and HCX) exhibited a prolonged intracellular Ca2+elevation and higher ATP release after brief exposure to CNS-IICs, indicating a regulatory function of mitochondria on this intracellular astrocyte Ca2+response. Collectively these  data  describing  integrin-relevant  cellular  mechanisms  of  astroglial  P2X7R  activation  could  help  to  expand integrin-inhibiting therapeutic approaches currently in use for MS treatment toward control ofastrocyte purine-based interaction with immune cells.
PB  - Wiley Periodicals LLC
C3  - XVI European Meeting on Glial Cells in Health and Disease, Abstract booklet
T1  - P2X7R, β3-integrin and Cx-43 mediate interaction between astrocytes and adjacent autoreactive immune cells
SP  - E941
VL  - 71
DO  - https://doi.org/10.1002/glia.24419
ER  - 

@conference{
author = "Milicevic, Katarina and Bataveljic, Danijela and Bogdanović Pristov, Jelena and Andjus, Pavle and Nikolic, Ljiljana",
year = "2023",
abstract = "Astrocytes form a dense meshwork throughout the central nervous system (CNS) which qualifies them to perform interactive maintenance functions with neighboring cells. In neuroinflammation, this astroglial cell-to-cell interaction varies which can either promote or lessen pathological processes (1,2). In multiple sclerosis (MS), astrocytes engage in an interaction with immune cells which drives neurodegeneration by creating and sustaining an inflammatory CNS environment  (3).  Previously,  we  showed  that  CNS-infiltrated  immune  cells  (CNS-IICs)  in  the  experimental autoimmune  encephalomyelitis  (EAE)  rat,  rapidly  alter  the  activity  pattern  of  astrocytes  by  activating  glial  P2X7receptor  (P2X7R)(4).  In  the  present  study,  we  aimed  to  identify  the  properties of  astroglial  P2X7R  in  EAE  and  to identify mechanisms responsible for astrocyte activation in the presence of CNS-IICs (CD4+T cells). In this respect, spinal cords from rats at the peak of EAE and age-matched healthy controls were isolated and protein expression of P2X7R and connexin-43 (Cx-43) were investigated. P2X7R protein expression was decreased in the lumbar spinal cord, while Cx-43 did not change. Next, we found that P2X7R and Cx-43 proteins interact in the lumbar spinal cord since both the monomer and the dimer Cx-43 co-immunoprecipitate with P2X7R. Even though the colocalization of P2X7R and Cx-43 was decreased in EAE compared to the control, the analysis of the distribution of astroglial P2X7R and Cx-43 and their colocalization in the radius of 20 μm from the infiltrated CD4+T cell center showed that astroglial P2X7R and Cx-43 are specifically associated and concentrated in the proximity of CNS-IICs in the EAE spinal cord. Subsequently,  to  achieve  an  unambiguous  analysis  of  astrocyte-immune  cell  interaction,  we  monitored  Ca2+dynamics in Fluo-4 labeled cultured naïve astrocytes following brief bath-application of CNS-IICs isolated and purified from spinal cords of EAE rats. Our data suggest that astroglial αvβ3-integrin acted upstream of P2X7R activation and is likely involved in establishing initial contact of astrocytes with CNS-IICs since astrocytic αvβ3-integrin block reduced the astrocytic Ca2+response to CNS-IIC application. Furthermore, astrocytes challenged with CGP31157 (blocker of mNCLX and HCX) exhibited a prolonged intracellular Ca2+elevation and higher ATP release after brief exposure to CNS-IICs, indicating a regulatory function of mitochondria on this intracellular astrocyte Ca2+response. Collectively these  data  describing  integrin-relevant  cellular  mechanisms  of  astroglial  P2X7R  activation  could  help  to  expand integrin-inhibiting therapeutic approaches currently in use for MS treatment toward control ofastrocyte purine-based interaction with immune cells.",
publisher = "Wiley Periodicals LLC",
journal = "XVI European Meeting on Glial Cells in Health and Disease, Abstract booklet",
title = "P2X7R, β3-integrin and Cx-43 mediate interaction between astrocytes and adjacent autoreactive immune cells",
pages = "E941",
volume = "71",
doi = "https://doi.org/10.1002/glia.24419"
}

Milicevic, K., Bataveljic, D., Bogdanović Pristov, J., Andjus, P.,& Nikolic, L.. (2023). P2X7R, β3-integrin and Cx-43 mediate interaction between astrocytes and adjacent autoreactive immune cells. in XVI European Meeting on Glial Cells in Health and Disease, Abstract booklet
Wiley Periodicals LLC., 71, E941.
https://doi.org/https://doi.org/10.1002/glia.24419

Milicevic K, Bataveljic D, Bogdanović Pristov J, Andjus P, Nikolic L. P2X7R, β3-integrin and Cx-43 mediate interaction between astrocytes and adjacent autoreactive immune cells. in XVI European Meeting on Glial Cells in Health and Disease, Abstract booklet. 2023;71:E941.
doi:https://doi.org/10.1002/glia.24419 .

Milicevic, Katarina, Bataveljic, Danijela, Bogdanović Pristov, Jelena, Andjus, Pavle, Nikolic, Ljiljana, "P2X7R, β3-integrin and Cx-43 mediate interaction between astrocytes and adjacent autoreactive immune cells" in XVI European Meeting on Glial Cells in Health and Disease, Abstract booklet, 71 (2023):E941,
https://doi.org/https://doi.org/10.1002/glia.24419 . .

TY  - CONF
AU  - Milicevic, Katarina
AU  - Bataveljic, Danijela
AU  - Bogdanović Pristov, Jelena
AU  - Andjus, Pavle
AU  - Nikolic, Ljiljana
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2014
AB  - The astrocytic network maintains homeostasis in the central nervous system (CNS) 
through interactions with neighboring cells. In the CNS autoimmune disease, multiple 
sclerosis (MS), neuroinflammatory conditions modulate these cell-to-cell interactions. 
Our previous work revealed that the immune cells infiltrated into the CNS (CNS-IICs) 
of experimental autoimmune encemphalomyelitis (EAE) rat, an animal model of MS, 
rapidly alter the activity pattern of astrocytes by activating the glial P2X7 receptor 
(P2X7R). In the present study we further defined the mechanisms responsible for 
astrocytes’ activation in the presence of CNS-IICs. For this purpose, we used an in 
vitro experimental setup and monitored Ca2+ dynamics in Fluo-4-labeled cultured 
naïve astrocytes following brief bath application of CNS-IICs isolated from the spinal 
cord of the EAE rat. Our data indicate that the astroglial αvβ3-integrin is involved in 
the initial contact of astrocytes with CNS-IICs, since blocking αvβ3-integrin reduced 
the expected astrocytic Ca2+ response. Furthermore, blocking of mitochondrial 
Na+/Ca2+- and H+/Ca2+- exchangers in astrocytes promoted an augmentation of the 
intracellular Ca2+ increase and a higher ATP release after brief exposure to CNS-IICs, 
demonstrating that mitochondria regulate the astrocyte-CNS IICs cell-cell interaction. 
Overall, our study expands the understanding of astrocytes’ interaction with 
autoreactive immune cells that are present in their local environment in an 
autoimmune disease. This offers a new conceptual framework for considering direct 
astrocyte–immune cell interaction to design new strategies for therapy development in 
the treatment of MS.
PB  - Serbian Neuroscience Society
C3  - 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS
T1  - αVβ3-Integrin and mitochondria mediate astrocyte response to  autoreactive immune cells
SP  - 101
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2014
ER  - 

@conference{
author = "Milicevic, Katarina and Bataveljic, Danijela and Bogdanović Pristov, Jelena and Andjus, Pavle and Nikolic, Ljiljana",
year = "2023",
abstract = "The astrocytic network maintains homeostasis in the central nervous system (CNS) 
through interactions with neighboring cells. In the CNS autoimmune disease, multiple 
sclerosis (MS), neuroinflammatory conditions modulate these cell-to-cell interactions. 
Our previous work revealed that the immune cells infiltrated into the CNS (CNS-IICs) 
of experimental autoimmune encemphalomyelitis (EAE) rat, an animal model of MS, 
rapidly alter the activity pattern of astrocytes by activating the glial P2X7 receptor 
(P2X7R). In the present study we further defined the mechanisms responsible for 
astrocytes’ activation in the presence of CNS-IICs. For this purpose, we used an in 
vitro experimental setup and monitored Ca2+ dynamics in Fluo-4-labeled cultured 
naïve astrocytes following brief bath application of CNS-IICs isolated from the spinal 
cord of the EAE rat. Our data indicate that the astroglial αvβ3-integrin is involved in 
the initial contact of astrocytes with CNS-IICs, since blocking αvβ3-integrin reduced 
the expected astrocytic Ca2+ response. Furthermore, blocking of mitochondrial 
Na+/Ca2+- and H+/Ca2+- exchangers in astrocytes promoted an augmentation of the 
intracellular Ca2+ increase and a higher ATP release after brief exposure to CNS-IICs, 
demonstrating that mitochondria regulate the astrocyte-CNS IICs cell-cell interaction. 
Overall, our study expands the understanding of astrocytes’ interaction with 
autoreactive immune cells that are present in their local environment in an 
autoimmune disease. This offers a new conceptual framework for considering direct 
astrocyte–immune cell interaction to design new strategies for therapy development in 
the treatment of MS.",
publisher = "Serbian Neuroscience Society",
journal = "8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS",
title = "αVβ3-Integrin and mitochondria mediate astrocyte response to  autoreactive immune cells",
pages = "101",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2014"
}

Milicevic, K., Bataveljic, D., Bogdanović Pristov, J., Andjus, P.,& Nikolic, L.. (2023). αVβ3-Integrin and mitochondria mediate astrocyte response to  autoreactive immune cells. in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS
Serbian Neuroscience Society., 101.
https://hdl.handle.net/21.15107/rcub_rimsi_2014

Milicevic K, Bataveljic D, Bogdanović Pristov J, Andjus P, Nikolic L. αVβ3-Integrin and mitochondria mediate astrocyte response to  autoreactive immune cells. in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS. 2023;:101.
https://hdl.handle.net/21.15107/rcub_rimsi_2014 .

Milicevic, Katarina, Bataveljic, Danijela, Bogdanović Pristov, Jelena, Andjus, Pavle, Nikolic, Ljiljana, "αVβ3-Integrin and mitochondria mediate astrocyte response to  autoreactive immune cells" in 8th CONGRESS OF SERBIAN NEUROSCIENCE SOCIETY with international  participation  31 May – 2 June 2023. Belgrade, Serbia - BOOK OF ABSTRACTS (2023):101,
https://hdl.handle.net/21.15107/rcub_rimsi_2014 .

TY  - JOUR
AU  - Milicevic, Katarina
AU  - Bataveljic, Danijela
AU  - Bogdanović Pristov, Jelena
AU  - Andjus, Pavle
AU  - Nikolic, Ljiljana
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2007
AB  - In multiple sclerosis (MS), glial cells astrocytes interact with the autoreactive immune cells that attack the central nervous system (CNS), which causes and sustains neuroinflammation. However, little is known about the direct interaction between these cells when they are in close proximity in the inflamed CNS. By using an experimental autoimmune encephalomyelitis (EAE) model of MS, we previously found that in the proximity of autoreactive CNS-infiltrated immune cells (CNS-IICs), astrocytes respond with a rapid calcium increase that is mediated by the autocrine P2X7 receptor (P2X7R) activation. We now reveal that the mechanisms regulating this direct interaction of astrocytes and CNS-IICs involve the coupling between P2X7R, connexin-43, and β3-integrin. We found that P2X7R and astroglial connexin-43 interact and concentrate in the immediate proximity of the CNS-IICs in EAE. P2X7R also interacts with β3-integrin, and the block of astroglial αvβ3-integrin reduces the P2X7R-dependent calcium response of astrocytes upon encountering CNS-IICs. This interaction was dependent on astroglial mitochondrial activity, which regulated the ATP-driven P2X7R activation and facilitated the termination of the astrocytic calcium response evoked by CNS-IICs. By further defining the interactions between the CNS and the immune system, our findings provide a novel perspective toward expanding integrin-targeting therapeutic approaches for MS treatment by controlling the cell–cell interactions between astrocytes and CNS-IICs.
PB  - MDPI
T2  - Cells
T1  - Astroglial Cell-to-Cell Interaction with Autoreactive Immune  Cells in Experimental Autoimmune Encephalomyelitis Involves  P2X7 Receptor, 3-Integrin, and Connexin-43
IS  - 13
SP  - 1786
VL  - 12
DO  - https://doi.org/10.3390/cells12131786
ER  - 

@article{
author = "Milicevic, Katarina and Bataveljic, Danijela and Bogdanović Pristov, Jelena and Andjus, Pavle and Nikolic, Ljiljana",
year = "2023",
abstract = "In multiple sclerosis (MS), glial cells astrocytes interact with the autoreactive immune cells that attack the central nervous system (CNS), which causes and sustains neuroinflammation. However, little is known about the direct interaction between these cells when they are in close proximity in the inflamed CNS. By using an experimental autoimmune encephalomyelitis (EAE) model of MS, we previously found that in the proximity of autoreactive CNS-infiltrated immune cells (CNS-IICs), astrocytes respond with a rapid calcium increase that is mediated by the autocrine P2X7 receptor (P2X7R) activation. We now reveal that the mechanisms regulating this direct interaction of astrocytes and CNS-IICs involve the coupling between P2X7R, connexin-43, and β3-integrin. We found that P2X7R and astroglial connexin-43 interact and concentrate in the immediate proximity of the CNS-IICs in EAE. P2X7R also interacts with β3-integrin, and the block of astroglial αvβ3-integrin reduces the P2X7R-dependent calcium response of astrocytes upon encountering CNS-IICs. This interaction was dependent on astroglial mitochondrial activity, which regulated the ATP-driven P2X7R activation and facilitated the termination of the astrocytic calcium response evoked by CNS-IICs. By further defining the interactions between the CNS and the immune system, our findings provide a novel perspective toward expanding integrin-targeting therapeutic approaches for MS treatment by controlling the cell–cell interactions between astrocytes and CNS-IICs.",
publisher = "MDPI",
journal = "Cells",
title = "Astroglial Cell-to-Cell Interaction with Autoreactive Immune  Cells in Experimental Autoimmune Encephalomyelitis Involves  P2X7 Receptor, 3-Integrin, and Connexin-43",
number = "13",
pages = "1786",
volume = "12",
doi = "https://doi.org/10.3390/cells12131786"
}

Milicevic, K., Bataveljic, D., Bogdanović Pristov, J., Andjus, P.,& Nikolic, L.. (2023). Astroglial Cell-to-Cell Interaction with Autoreactive Immune  Cells in Experimental Autoimmune Encephalomyelitis Involves  P2X7 Receptor, 3-Integrin, and Connexin-43. in Cells
MDPI., 12(13), 1786.
https://doi.org/https://doi.org/10.3390/cells12131786

Milicevic K, Bataveljic D, Bogdanović Pristov J, Andjus P, Nikolic L. Astroglial Cell-to-Cell Interaction with Autoreactive Immune  Cells in Experimental Autoimmune Encephalomyelitis Involves  P2X7 Receptor, 3-Integrin, and Connexin-43. in Cells. 2023;12(13):1786.
doi:https://doi.org/10.3390/cells12131786 .

Milicevic, Katarina, Bataveljic, Danijela, Bogdanović Pristov, Jelena, Andjus, Pavle, Nikolic, Ljiljana, "Astroglial Cell-to-Cell Interaction with Autoreactive Immune  Cells in Experimental Autoimmune Encephalomyelitis Involves  P2X7 Receptor, 3-Integrin, and Connexin-43" in Cells, 12, no. 13 (2023):1786,
https://doi.org/https://doi.org/10.3390/cells12131786 . .

TY  - JOUR
AU  - SHEN, Weida
AU  - Bogdanović Pristov, Jelena
AU  - Nobili, Paola
AU  - Nikolic, Ljiljana
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2004
AB  - Epilepsy is a neurological disorder caused by the pathological hyper-synchronization of neuronal discharges. The fundamental research of epilepsy mechanisms and the targets of drug design options for its treatment have focused on neurons. However, approximately 30% of patients suffering from epilepsy show resistance to standard anti-epileptic chemotherapeutic agents while the symptoms of the remaining 70% of patients can be alleviated but not completely removed by the current medications. Thus, new strategies for the treatment of epilepsy are in urgent demand. Over the past decades, with the increase in knowledge on the role of glia in the genesis and development of epilepsy, glial cells are receiving renewed attention. In a normal brain, glial cells maintain neuronal health and in partnership with neurons regulate virtually every aspect of brain function. In epilepsy, however, the supportive roles of glial cells are compromised, and their interaction with neurons is altered, which disrupts brain function. In this review, we will focus on the role of glia-related processes in epileptogenesis and their contribution to abnormal neuronal activity, with the major focus on the dysfunction of astroglial potassium channels, water channels, gap junctions, glutamate transporters, purinergic signaling, synaptogenesis, on the roles of microglial inflammatory cytokines, microglia-astrocyte interactions in epilepsy, and on the oligodendroglial potassium channels and myelin abnormalities in the epileptic brain. These recent findings suggest that glia should be considered as the promising next-generation targets for designing anti-epileptic drugs that may improve epilepsy and drug-resistant epilepsy.
PB  - Wolters Kluwer – Medknow
T2  - NEURAL REGENERATION RESEARCH
T1  - Can glial cells save neurons in epilepsy?
EP  - 1422
IS  - 7
SP  - 1417
VL  - 18
DO  - 10.4103/1673-5374.360281
ER  - 

@article{
author = "SHEN, Weida and Bogdanović Pristov, Jelena and Nobili, Paola and Nikolic, Ljiljana",
year = "2023",
abstract = "Epilepsy is a neurological disorder caused by the pathological hyper-synchronization of neuronal discharges. The fundamental research of epilepsy mechanisms and the targets of drug design options for its treatment have focused on neurons. However, approximately 30% of patients suffering from epilepsy show resistance to standard anti-epileptic chemotherapeutic agents while the symptoms of the remaining 70% of patients can be alleviated but not completely removed by the current medications. Thus, new strategies for the treatment of epilepsy are in urgent demand. Over the past decades, with the increase in knowledge on the role of glia in the genesis and development of epilepsy, glial cells are receiving renewed attention. In a normal brain, glial cells maintain neuronal health and in partnership with neurons regulate virtually every aspect of brain function. In epilepsy, however, the supportive roles of glial cells are compromised, and their interaction with neurons is altered, which disrupts brain function. In this review, we will focus on the role of glia-related processes in epileptogenesis and their contribution to abnormal neuronal activity, with the major focus on the dysfunction of astroglial potassium channels, water channels, gap junctions, glutamate transporters, purinergic signaling, synaptogenesis, on the roles of microglial inflammatory cytokines, microglia-astrocyte interactions in epilepsy, and on the oligodendroglial potassium channels and myelin abnormalities in the epileptic brain. These recent findings suggest that glia should be considered as the promising next-generation targets for designing anti-epileptic drugs that may improve epilepsy and drug-resistant epilepsy.",
publisher = "Wolters Kluwer – Medknow",
journal = "NEURAL REGENERATION RESEARCH",
title = "Can glial cells save neurons in epilepsy?",
pages = "1422-1417",
number = "7",
volume = "18",
doi = "10.4103/1673-5374.360281"
}

SHEN, W., Bogdanović Pristov, J., Nobili, P.,& Nikolic, L.. (2023). Can glial cells save neurons in epilepsy?. in NEURAL REGENERATION RESEARCH
Wolters Kluwer – Medknow., 18(7), 1417-1422.
https://doi.org/10.4103/1673-5374.360281

SHEN W, Bogdanović Pristov J, Nobili P, Nikolic L. Can glial cells save neurons in epilepsy?. in NEURAL REGENERATION RESEARCH. 2023;18(7):1417-1422.
doi:10.4103/1673-5374.360281 .

SHEN, Weida, Bogdanović Pristov, Jelena, Nobili, Paola, Nikolic, Ljiljana, "Can glial cells save neurons in epilepsy?" in NEURAL REGENERATION RESEARCH, 18, no. 7 (2023):1417-1422,
https://doi.org/10.4103/1673-5374.360281 . .

TY  - GEN
AU  - Simonović Radosavljević, Jasna
AU  - Mitrović, Aleksandra Lj.
AU  - Bogdanović Pristov, Jelena
AU  - Radotić, Ksenija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2857
AB  - Целулоза, лигнин и хемицелулозе су главне компоненте ћелијског зида које су комплексно повезане. Начин на који су ови полимери дрвета спрегнути међусобно и њихове особине утичу на својства влакана и дрвета, па је разумевање интеракција између ових полимера важно за разумевање механичких својстава дрвета, као одговора биљке на стрес, али такође и као могућу употребу дрвета као извора нових биоматеријала. Ћелијски зид се састоји од примарног зида (P), спољашњег секундарног зида (S1), средњег секундарног зида (S2) и унутрашњег секундарног зида (S3). У ћелијском зиду су доминантне особине S2 слоја јер он чини 80% укупне масе ћелијског зида. Целулоза је релативно паралелно оријентисана у односу на осу ћелијског зида што даје механичку снагу ћелијском зиду.1,2 Главна разлика између хемицелулозе тврдог и меког дрвета је у садржају ксилана и глукоманана. Постоје разлике и у лигнинским мономерним прекурсорима у ћелијским зидовима ове две врсте дрвета. Лигнин у меком дрвету садржи јединице гвајакола, док лигнин у тврдом дрвету садржи и гвајакол и сирингил мономере.3 Већина истраживања која се односе на оријентацију су фокусирана само на оријентацију целулозних микрофибрила. Међутим, организација преосталих полимера дрвета је од значаја код разумевања формирања ћелијског зида током раста. Анизотропију односно структурну уређеност ћелијског зида проучавали смо применом диференцијално поларизоване флуоресцентне микроскопије, као и применом ФТИР микро-спектроскопије.
PB  - Srpsko biološko društvo
T2  - Treći kongres biologa Srbije
T1  - Mehanički stres i drvenaste biljke
SP  - 18
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2857
ER  - 

@misc{
author = "Simonović Radosavljević, Jasna and Mitrović, Aleksandra Lj. and Bogdanović Pristov, Jelena and Radotić, Ksenija",
year = "2022",
abstract = "Целулоза, лигнин и хемицелулозе су главне компоненте ћелијског зида које су комплексно повезане. Начин на који су ови полимери дрвета спрегнути међусобно и њихове особине утичу на својства влакана и дрвета, па је разумевање интеракција између ових полимера важно за разумевање механичких својстава дрвета, као одговора биљке на стрес, али такође и као могућу употребу дрвета као извора нових биоматеријала. Ћелијски зид се састоји од примарног зида (P), спољашњег секундарног зида (S1), средњег секундарног зида (S2) и унутрашњег секундарног зида (S3). У ћелијском зиду су доминантне особине S2 слоја јер он чини 80% укупне масе ћелијског зида. Целулоза је релативно паралелно оријентисана у односу на осу ћелијског зида што даје механичку снагу ћелијском зиду.1,2 Главна разлика између хемицелулозе тврдог и меког дрвета је у садржају ксилана и глукоманана. Постоје разлике и у лигнинским мономерним прекурсорима у ћелијским зидовима ове две врсте дрвета. Лигнин у меком дрвету садржи јединице гвајакола, док лигнин у тврдом дрвету садржи и гвајакол и сирингил мономере.3 Већина истраживања која се односе на оријентацију су фокусирана само на оријентацију целулозних микрофибрила. Међутим, организација преосталих полимера дрвета је од значаја код разумевања формирања ћелијског зида током раста. Анизотропију односно структурну уређеност ћелијског зида проучавали смо применом диференцијално поларизоване флуоресцентне микроскопије, као и применом ФТИР микро-спектроскопије.",
publisher = "Srpsko biološko društvo",
journal = "Treći kongres biologa Srbije",
title = "Mehanički stres i drvenaste biljke",
pages = "18",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2857"
}

Simonović Radosavljević, J., Mitrović, A. Lj., Bogdanović Pristov, J.,& Radotić, K.. (2022). Mehanički stres i drvenaste biljke. in Treći kongres biologa Srbije
Srpsko biološko društvo., 18.
https://hdl.handle.net/21.15107/rcub_rimsi_2857

Simonović Radosavljević J, Mitrović AL, Bogdanović Pristov J, Radotić K. Mehanički stres i drvenaste biljke. in Treći kongres biologa Srbije. 2022;:18.
https://hdl.handle.net/21.15107/rcub_rimsi_2857 .

Simonović Radosavljević, Jasna, Mitrović, Aleksandra Lj., Bogdanović Pristov, Jelena, Radotić, Ksenija, "Mehanički stres i drvenaste biljke" in Treći kongres biologa Srbije (2022):18,
https://hdl.handle.net/21.15107/rcub_rimsi_2857 .

TY  - CONF
AU  - Prodanović, Olivera
AU  - Pantić, Nevena
AU  - Bogdanović Pristov, Jelena
AU  - Mitrović, Aleksandra Lj.
AU  - Radotić, Ksenija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1761
AB  - Pančićeva omorika predstavlja Balkansku endemičnu vrstu smrče i tercijarni relikt. Određen je sastav antioksidativnih enzima tokom klijanja semena omorike u fiziološkim uslovima, a radi boljeg razumevanja mehanizama otpornosti na zagađivače iz spoljašnje sredine.1 Ovo je prva studija aktivnosti enzima katalaze (CAT), superoksid dismutaze (SOD) i peroksidaze (POD) tokom klijanja dve linije semena Pančićeve omorike (A – borealis i S – srpska). Klijanje semena je praćeno tokom 7 dana. Za procenat klijavosti korišćen je proboj radikule za više od 1 milimetar kao kriterijum. Linija A je pokazala veći procenat klijavosti (74%) i veću aktivnost enzima po jedinici sveže mase klijanaca u poređenju sa linijom S (63%). CAT aktivnost kod linije A je povećana po jedinici mase klijanaca i suvih semena, a nakon 7 dana kod neisklijalih semena nije detektovana. SOD aktivnost je ostala na sličnom nivou u obe linije. Aktivnost POD na početku nije detektovana, ali se naglo povećala nakon četvrtog dana da bi sedmog bila 10 U/g sveže mase klijanaca kod linije S i 28 U/g kod A. CAT i SOD su uključeni u očuvanje klijavosti semena i imaju ulogu zaštite od reaktivnih kiseoničnih vrsta tokom skladištenja i klijanja, dok je katalazna aktivnost bitna za procenu klijavosti. Najveću promenu aktivnosti za vreme klijanja pokazala je peroksidaza, čija aktivnost nije detektovana u suvim semenima, a tokom klijanja naglo se povećala i značajna je u kasnijim fazama klijanja.
PB  - Srpsko biološko društvo
C3  - Treći kongres biologa Srbije
T1  - Klijanja semena Pančićeve omorike (Picea omorika (Pančić) Purkyně) i antioksidativni enzimi
SP  - 327
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1761
ER  - 

@conference{
author = "Prodanović, Olivera and Pantić, Nevena and Bogdanović Pristov, Jelena and Mitrović, Aleksandra Lj. and Radotić, Ksenija",
year = "2022",
abstract = "Pančićeva omorika predstavlja Balkansku endemičnu vrstu smrče i tercijarni relikt. Određen je sastav antioksidativnih enzima tokom klijanja semena omorike u fiziološkim uslovima, a radi boljeg razumevanja mehanizama otpornosti na zagađivače iz spoljašnje sredine.1 Ovo je prva studija aktivnosti enzima katalaze (CAT), superoksid dismutaze (SOD) i peroksidaze (POD) tokom klijanja dve linije semena Pančićeve omorike (A – borealis i S – srpska). Klijanje semena je praćeno tokom 7 dana. Za procenat klijavosti korišćen je proboj radikule za više od 1 milimetar kao kriterijum. Linija A je pokazala veći procenat klijavosti (74%) i veću aktivnost enzima po jedinici sveže mase klijanaca u poređenju sa linijom S (63%). CAT aktivnost kod linije A je povećana po jedinici mase klijanaca i suvih semena, a nakon 7 dana kod neisklijalih semena nije detektovana. SOD aktivnost je ostala na sličnom nivou u obe linije. Aktivnost POD na početku nije detektovana, ali se naglo povećala nakon četvrtog dana da bi sedmog bila 10 U/g sveže mase klijanaca kod linije S i 28 U/g kod A. CAT i SOD su uključeni u očuvanje klijavosti semena i imaju ulogu zaštite od reaktivnih kiseoničnih vrsta tokom skladištenja i klijanja, dok je katalazna aktivnost bitna za procenu klijavosti. Najveću promenu aktivnosti za vreme klijanja pokazala je peroksidaza, čija aktivnost nije detektovana u suvim semenima, a tokom klijanja naglo se povećala i značajna je u kasnijim fazama klijanja.",
publisher = "Srpsko biološko društvo",
journal = "Treći kongres biologa Srbije",
title = "Klijanja semena Pančićeve omorike (Picea omorika (Pančić) Purkyně) i antioksidativni enzimi",
pages = "327",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1761"
}

Prodanović, O., Pantić, N., Bogdanović Pristov, J., Mitrović, A. Lj.,& Radotić, K.. (2022). Klijanja semena Pančićeve omorike (Picea omorika (Pančić) Purkyně) i antioksidativni enzimi. in Treći kongres biologa Srbije
Srpsko biološko društvo., 327.
https://hdl.handle.net/21.15107/rcub_rimsi_1761

Prodanović O, Pantić N, Bogdanović Pristov J, Mitrović AL, Radotić K. Klijanja semena Pančićeve omorike (Picea omorika (Pančić) Purkyně) i antioksidativni enzimi. in Treći kongres biologa Srbije. 2022;:327.
https://hdl.handle.net/21.15107/rcub_rimsi_1761 .

Prodanović, Olivera, Pantić, Nevena, Bogdanović Pristov, Jelena, Mitrović, Aleksandra Lj., Radotić, Ksenija, "Klijanja semena Pančićeve omorike (Picea omorika (Pančić) Purkyně) i antioksidativni enzimi" in Treći kongres biologa Srbije (2022):327,
https://hdl.handle.net/21.15107/rcub_rimsi_1761 .

TY  - CONF
AU  - Nikolic, Ljiljana
AU  - Savic, Danijela
AU  - Korać Jačić, Jelena
AU  - Petkovic, Branka
AU  - Stojadinovic, Gordana
AU  - Martac, Ljiljana
AU  - Bogdanović Pristov, Jelena
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2010
AB  - Living cells exhibit multiple ion channel proteins and malfunction of these channels underlies 
numerous diseases. Channelopathies include diseases of the nervous, cardiovascular, respiratory, 
endocrine, urinary, and immune system. Currently, ion channels represent the second-largest target for existing drugs. Here, using the whole-cell patch-clamp technique, we explored the epinephrine effect on membrane ionic currents in glioma C6 cells. We demonstrate that epinephrine specifically evokes an increase of C6 cells outward ionic currents that is stable within 10 min, while it does not affect inward currents. Our results thus provide fine resolution and time frame for targeting ion channel activity that is crucial in pharmacological investigations.
PB  - Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)
T1  - MEMBRANE CURRENTS OF C6 CELLS IN PHARMACOLOGICAL  INVESTIGATION
EP  - 592
SP  - 589
VL  - 2
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2010
ER  - 

@conference{
author = "Nikolic, Ljiljana and Savic, Danijela and Korać Jačić, Jelena and Petkovic, Branka and Stojadinovic, Gordana and Martac, Ljiljana and Bogdanović Pristov, Jelena",
year = "2022",
abstract = "Living cells exhibit multiple ion channel proteins and malfunction of these channels underlies 
numerous diseases. Channelopathies include diseases of the nervous, cardiovascular, respiratory, 
endocrine, urinary, and immune system. Currently, ion channels represent the second-largest target for existing drugs. Here, using the whole-cell patch-clamp technique, we explored the epinephrine effect on membrane ionic currents in glioma C6 cells. We demonstrate that epinephrine specifically evokes an increase of C6 cells outward ionic currents that is stable within 10 min, while it does not affect inward currents. Our results thus provide fine resolution and time frame for targeting ion channel activity that is crucial in pharmacological investigations.",
publisher = "Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)",
title = "MEMBRANE CURRENTS OF C6 CELLS IN PHARMACOLOGICAL  INVESTIGATION",
pages = "592-589",
volume = "2",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2010"
}

Nikolic, L., Savic, D., Korać Jačić, J., Petkovic, B., Stojadinovic, G., Martac, L.,& Bogdanović Pristov, J.. (2022). MEMBRANE CURRENTS OF C6 CELLS IN PHARMACOLOGICAL  INVESTIGATION. in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)
Society of Physical Chemists of Serbia., 2, 589-592.
https://hdl.handle.net/21.15107/rcub_rimsi_2010

Nikolic L, Savic D, Korać Jačić J, Petkovic B, Stojadinovic G, Martac L, Bogdanović Pristov J. MEMBRANE CURRENTS OF C6 CELLS IN PHARMACOLOGICAL  INVESTIGATION. in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings). 2022;2:589-592.
https://hdl.handle.net/21.15107/rcub_rimsi_2010 .

Nikolic, Ljiljana, Savic, Danijela, Korać Jačić, Jelena, Petkovic, Branka, Stojadinovic, Gordana, Martac, Ljiljana, Bogdanović Pristov, Jelena, "MEMBRANE CURRENTS OF C6 CELLS IN PHARMACOLOGICAL  INVESTIGATION" in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings), 2 (2022):589-592,
https://hdl.handle.net/21.15107/rcub_rimsi_2010 .

TY  - CONF
AU  - Nikolic, Ljiljana
AU  - Vidović, Marija
AU  - Todorovic, Natasa
AU  - Petkovic, Branka
AU  - Stojadinovic, Gordana
AU  - Martac, Ljiljana
AU  - Bogdanović Pristov, Jelena
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2008
AB  - Investigating membrane properties of plants is a challenging task, considering that success of 
experiments is highly dependent on the possibility to isolate metabolically active protoplasts that 
can withstand membrane current recordings. The aim of the present work is to obtain viable 
protoplasts derived from root cells of Pisum sativum that can be used for the whole-cell patch
clamp. We designed the procedure of the pea protoplasts isolation that delivers stable protoplasts 
with preserved membrane integrity suitable for electrophysiological experiments. We applied a 
custom approach for patch-clamping protoplasts using a microscope with a movable microscope 
stage. We recorded prominent inward and prominent outward types of membrane current profiles of protoplasts. Obtained data indicate that optimized isolation protocol and custom system for patch clamping, can be applied to study membrane properties of root protoplasts.
PB  - Society of Physical Chemists of Serbia
C3  - PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)
T1  - PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE
EP  - 274
SP  - 271
VL  - 1
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2008
ER  - 

@conference{
author = "Nikolic, Ljiljana and Vidović, Marija and Todorovic, Natasa and Petkovic, Branka and Stojadinovic, Gordana and Martac, Ljiljana and Bogdanović Pristov, Jelena",
year = "2022",
abstract = "Investigating membrane properties of plants is a challenging task, considering that success of 
experiments is highly dependent on the possibility to isolate metabolically active protoplasts that 
can withstand membrane current recordings. The aim of the present work is to obtain viable 
protoplasts derived from root cells of Pisum sativum that can be used for the whole-cell patch
clamp. We designed the procedure of the pea protoplasts isolation that delivers stable protoplasts 
with preserved membrane integrity suitable for electrophysiological experiments. We applied a 
custom approach for patch-clamping protoplasts using a microscope with a movable microscope 
stage. We recorded prominent inward and prominent outward types of membrane current profiles of protoplasts. Obtained data indicate that optimized isolation protocol and custom system for patch clamping, can be applied to study membrane properties of root protoplasts.",
publisher = "Society of Physical Chemists of Serbia",
journal = "PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)",
title = "PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE",
pages = "274-271",
volume = "1",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2008"
}

Nikolic, L., Vidović, M., Todorovic, N., Petkovic, B., Stojadinovic, G., Martac, L.,& Bogdanović Pristov, J.. (2022). PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE. in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings)
Society of Physical Chemists of Serbia., 1, 271-274.
https://hdl.handle.net/21.15107/rcub_rimsi_2008

Nikolic L, Vidović M, Todorovic N, Petkovic B, Stojadinovic G, Martac L, Bogdanović Pristov J. PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE. in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings). 2022;1:271-274.
https://hdl.handle.net/21.15107/rcub_rimsi_2008 .

Nikolic, Ljiljana, Vidović, Marija, Todorovic, Natasa, Petkovic, Branka, Stojadinovic, Gordana, Martac, Ljiljana, Bogdanović Pristov, Jelena, "PROTOPLAST PATCH-CLAMPING USING AN UPRIGHT MICROSCOPE  WITH A MOVABLE STAGE" in PHYSICAL CHEMISTRY 2022, 16th International Conference on Fundamental and Applied Aspects  of Physical Chemistry (Proceedings), 1 (2022):271-274,
https://hdl.handle.net/21.15107/rcub_rimsi_2008 .

TY  - JOUR
AU  - Nobili, Paola
AU  - SHEN, Weida
AU  - Milicevic, Katarina
AU  - Bogdanović Pristov, Jelena
AU  - Audinat, Etienne
AU  - Nikolic, Ljiljana
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1813
AB  - Epilepsy and multiple sclerosis (MS), two of the most common neurological diseases, are
characterized by the establishment of inflammatory environment in the central nervous
system that drives disease progression and impacts on neurodegeneration. Current
therapeutic approaches in the treatments of epilepsy and MS are targeting neuronal
activity and immune cell response, respectively. However, the lack of fully efficient
responses to the available treatments obviously shows the need to search for novel
therapeutic candidates that will not exclusively target neurons or immune cells.
Accumulating knowledge on epilepsy and MS in humans and analysis of relevant
animal models, reveals that astrocytes are promising therapeutic candidates to target
as they participate in the modulation of the neuroinflammatory response in both diseases
from the initial stages and may play an important role in their development. Indeed,
astrocytes respond to reactive immune cells and contribute to the neuronal hyperactivity in
the inflamed brain. Mechanistically, these astrocytic cell to cell interactions are
fundamentally mediated by the purinergic signalling and involve metabotropic P2Y1
receptors in case of astrocyte interactions with neurons, while ionotropic P2X7
receptors are mainly involved in astrocyte interactions with autoreactive immune cells.
Herein, we review the potential of targeting astrocytic purinergic signalling mediated by
P2Y1 and P2X7 receptors to develop novel approaches for treatments of epilepsy and MS
at very early stages.
PB  - Frontiers Media
T2  - Frontiers in Pharmacology
T1  - Therapeutic Potential of Astrocyte Purinergic Signalling in Epilepsy and Multiple Sclerosis
SP  - 900337
VL  - 13
DO  - 10.3389/fphar.2022.900337
ER  - 

@article{
author = "Nobili, Paola and SHEN, Weida and Milicevic, Katarina and Bogdanović Pristov, Jelena and Audinat, Etienne and Nikolic, Ljiljana",
year = "2022",
abstract = "Epilepsy and multiple sclerosis (MS), two of the most common neurological diseases, are
characterized by the establishment of inflammatory environment in the central nervous
system that drives disease progression and impacts on neurodegeneration. Current
therapeutic approaches in the treatments of epilepsy and MS are targeting neuronal
activity and immune cell response, respectively. However, the lack of fully efficient
responses to the available treatments obviously shows the need to search for novel
therapeutic candidates that will not exclusively target neurons or immune cells.
Accumulating knowledge on epilepsy and MS in humans and analysis of relevant
animal models, reveals that astrocytes are promising therapeutic candidates to target
as they participate in the modulation of the neuroinflammatory response in both diseases
from the initial stages and may play an important role in their development. Indeed,
astrocytes respond to reactive immune cells and contribute to the neuronal hyperactivity in
the inflamed brain. Mechanistically, these astrocytic cell to cell interactions are
fundamentally mediated by the purinergic signalling and involve metabotropic P2Y1
receptors in case of astrocyte interactions with neurons, while ionotropic P2X7
receptors are mainly involved in astrocyte interactions with autoreactive immune cells.
Herein, we review the potential of targeting astrocytic purinergic signalling mediated by
P2Y1 and P2X7 receptors to develop novel approaches for treatments of epilepsy and MS
at very early stages.",
publisher = "Frontiers Media",
journal = "Frontiers in Pharmacology",
title = "Therapeutic Potential of Astrocyte Purinergic Signalling in Epilepsy and Multiple Sclerosis",
pages = "900337",
volume = "13",
doi = "10.3389/fphar.2022.900337"
}

Nobili, P., SHEN, W., Milicevic, K., Bogdanović Pristov, J., Audinat, E.,& Nikolic, L.. (2022). Therapeutic Potential of Astrocyte Purinergic Signalling in Epilepsy and Multiple Sclerosis. in Frontiers in Pharmacology
Frontiers Media., 13, 900337.
https://doi.org/10.3389/fphar.2022.900337

Nobili P, SHEN W, Milicevic K, Bogdanović Pristov J, Audinat E, Nikolic L. Therapeutic Potential of Astrocyte Purinergic Signalling in Epilepsy and Multiple Sclerosis. in Frontiers in Pharmacology. 2022;13:900337.
doi:10.3389/fphar.2022.900337 .

Nobili, Paola, SHEN, Weida, Milicevic, Katarina, Bogdanović Pristov, Jelena, Audinat, Etienne, Nikolic, Ljiljana, "Therapeutic Potential of Astrocyte Purinergic Signalling in Epilepsy and Multiple Sclerosis" in Frontiers in Pharmacology, 13 (2022):900337,
https://doi.org/10.3389/fphar.2022.900337 . .

TY  - JOUR
AU  - Peric, Mina
AU  - Bataveljic, Danijela
AU  - Bijelic, Dunja
AU  - Milicević, Katarina
AU  - Andjus, Pavle R.
AU  - Bogdanović Pristov, Jelena
AU  - Nikolić, Ljiljana M.
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1546
AB  - We describe an approach for studying the physiology of single live cells using the conceptionally novel upright microscope/patch-clamp configuration. Electrophysiology experiments typically require a microscope with the fixed stage position and the motion control of the microscope objective. Here, we demonstrate that a microscope with a z-axis movable stage and a fixed objective can also be efficiently used in combination with the patch-clamp technique. We define a set of underlying principles governing the operation of this microscope/patch-clamp configuration and demonstrate its performance in practice using cultured astrocytes, microglia, and oligodendrocytes. Experimental results show that our custom configuration provides stable recordings, has a high success rate of the whole-cell patch-clamp trials, can be effectively applied to study cellular physiology of glial cells, and provides comparable performance and usability to the commercially available systems. Our system can be easily replicated or adapted to suit the needs of the research groups and can be cost-effective in reducing the investments in purchasing additional equipment. We provide step-by-step instructions on implementing an upright microscope with z-axis movable stage as a routine workhorse for patch-clamping.
PB  - Wiley, Hoboken
T2  - Microscopy Research and Technique
T1  - Approach for patch-clamping using an upright microscope with z-axis movable stage
DO  - 10.1002/jemt.24066
ER  - 

@article{
author = "Peric, Mina and Bataveljic, Danijela and Bijelic, Dunja and Milicević, Katarina and Andjus, Pavle R. and Bogdanović Pristov, Jelena and Nikolić, Ljiljana M.",
year = "2022",
abstract = "We describe an approach for studying the physiology of single live cells using the conceptionally novel upright microscope/patch-clamp configuration. Electrophysiology experiments typically require a microscope with the fixed stage position and the motion control of the microscope objective. Here, we demonstrate that a microscope with a z-axis movable stage and a fixed objective can also be efficiently used in combination with the patch-clamp technique. We define a set of underlying principles governing the operation of this microscope/patch-clamp configuration and demonstrate its performance in practice using cultured astrocytes, microglia, and oligodendrocytes. Experimental results show that our custom configuration provides stable recordings, has a high success rate of the whole-cell patch-clamp trials, can be effectively applied to study cellular physiology of glial cells, and provides comparable performance and usability to the commercially available systems. Our system can be easily replicated or adapted to suit the needs of the research groups and can be cost-effective in reducing the investments in purchasing additional equipment. We provide step-by-step instructions on implementing an upright microscope with z-axis movable stage as a routine workhorse for patch-clamping.",
publisher = "Wiley, Hoboken",
journal = "Microscopy Research and Technique",
title = "Approach for patch-clamping using an upright microscope with z-axis movable stage",
doi = "10.1002/jemt.24066"
}

Peric, M., Bataveljic, D., Bijelic, D., Milicević, K., Andjus, P. R., Bogdanović Pristov, J.,& Nikolić, L. M.. (2022). Approach for patch-clamping using an upright microscope with z-axis movable stage. in Microscopy Research and Technique
Wiley, Hoboken..
https://doi.org/10.1002/jemt.24066

Peric M, Bataveljic D, Bijelic D, Milicević K, Andjus PR, Bogdanović Pristov J, Nikolić LM. Approach for patch-clamping using an upright microscope with z-axis movable stage. in Microscopy Research and Technique. 2022;.
doi:10.1002/jemt.24066 .

Peric, Mina, Bataveljic, Danijela, Bijelic, Dunja, Milicević, Katarina, Andjus, Pavle R., Bogdanović Pristov, Jelena, Nikolić, Ljiljana M., "Approach for patch-clamping using an upright microscope with z-axis movable stage" in Microscopy Research and Technique (2022),
https://doi.org/10.1002/jemt.24066 . .

TY  - JOUR
AU  - Bogdanović Pristov, Jelena
AU  - Nikolić, Ljiljana M.
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1472
PB  - Wolters Kluwer Medknow Publications, Mumbai
T2  - Neural Regeneration Research
T1  - Light of the stars: calcium signals light up astrocytes in the presence of autoreactive CD4(+) T cells
EP  - 2396
IS  - 12
SP  - 2395
VL  - 16
DO  - 10.4103/1673-5374.313036
ER  - 

@article{
author = "Bogdanović Pristov, Jelena and Nikolić, Ljiljana M.",
year = "2021",
publisher = "Wolters Kluwer Medknow Publications, Mumbai",
journal = "Neural Regeneration Research",
title = "Light of the stars: calcium signals light up astrocytes in the presence of autoreactive CD4(+) T cells",
pages = "2396-2395",
number = "12",
volume = "16",
doi = "10.4103/1673-5374.313036"
}

Bogdanović Pristov, J.,& Nikolić, L. M.. (2021). Light of the stars: calcium signals light up astrocytes in the presence of autoreactive CD4(+) T cells. in Neural Regeneration Research
Wolters Kluwer Medknow Publications, Mumbai., 16(12), 2395-2396.
https://doi.org/10.4103/1673-5374.313036

Bogdanović Pristov J, Nikolić LM. Light of the stars: calcium signals light up astrocytes in the presence of autoreactive CD4(+) T cells. in Neural Regeneration Research. 2021;16(12):2395-2396.
doi:10.4103/1673-5374.313036 .

Bogdanović Pristov, Jelena, Nikolić, Ljiljana M., "Light of the stars: calcium signals light up astrocytes in the presence of autoreactive CD4(+) T cells" in Neural Regeneration Research, 16, no. 12 (2021):2395-2396,
https://doi.org/10.4103/1673-5374.313036 . .

TY  - JOUR
AU  - Vojvodić, Snežana
AU  - Danilović Luković, Jelena
AU  - Zechmann, Bernd
AU  - Jevtović, Mima
AU  - Bogdanović Pristov, Jelena
AU  - Stanić, Marina
AU  - Lizzul, Alessandro Marco
AU  - Pittman, Jon K.
AU  - Spasojević, Ivan
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1371
AB  - The impact of ionizing radiation on microorganisms such as microalgae is a topic of increasing importance for understanding the dynamics of aquatic ecosystems in response to environmental radiation, and for the development of efficient approaches for bioremediation of mining and nuclear power plants wastewaters. Currently, nothing is known about the effects of ionizing radiation on the microalgal cell wall, which represents the first line of defence against chemical and physical environmental stresses. Using various microscopy, spectroscopy and biochemical techniques we show that the unicellular alga Chlorella sorokiniana elicits a fast response to ionizing radiation. Within one day after irradiation with doses of 1-5 Gy, the fibrilar layer of the cell wall became thicker, the fraction of uronic acids was higher, and the capacity to remove the main reactive product of water radiolysis increased. In addition, the isolated cell wall fraction showed significant binding capacity for Cu2+, Mn2+, and Cr3+. The irradiation further increased the binding capacity for Cu2+, which appears to be mainly bound to glucosamine moieties within a chitosan-like polymer in the outer rigid layer of the wall. These results imply that the cell wall represents a dynamic structure that is involved in the protective response of microalgae to ionizing radiation. It appears that microalgae may exhibit a significant control of metal mobility in aquatic ecosystems via biosorption by the cell wall matrix.
PB  - Pergamon-Elsevier Science Ltd, Oxford
T2  - Chemosphere
T1  - The effects of ionizing radiation on the structure and antioxidative and metal-binding capacity of the cell wall of microalga Chlorella sorokiniana
VL  - 260
DO  - 10.1016/j.chemosphere.2020.127553
ER  - 

@article{
author = "Vojvodić, Snežana and Danilović Luković, Jelena and Zechmann, Bernd and Jevtović, Mima and Bogdanović Pristov, Jelena and Stanić, Marina and Lizzul, Alessandro Marco and Pittman, Jon K. and Spasojević, Ivan",
year = "2020",
abstract = "The impact of ionizing radiation on microorganisms such as microalgae is a topic of increasing importance for understanding the dynamics of aquatic ecosystems in response to environmental radiation, and for the development of efficient approaches for bioremediation of mining and nuclear power plants wastewaters. Currently, nothing is known about the effects of ionizing radiation on the microalgal cell wall, which represents the first line of defence against chemical and physical environmental stresses. Using various microscopy, spectroscopy and biochemical techniques we show that the unicellular alga Chlorella sorokiniana elicits a fast response to ionizing radiation. Within one day after irradiation with doses of 1-5 Gy, the fibrilar layer of the cell wall became thicker, the fraction of uronic acids was higher, and the capacity to remove the main reactive product of water radiolysis increased. In addition, the isolated cell wall fraction showed significant binding capacity for Cu2+, Mn2+, and Cr3+. The irradiation further increased the binding capacity for Cu2+, which appears to be mainly bound to glucosamine moieties within a chitosan-like polymer in the outer rigid layer of the wall. These results imply that the cell wall represents a dynamic structure that is involved in the protective response of microalgae to ionizing radiation. It appears that microalgae may exhibit a significant control of metal mobility in aquatic ecosystems via biosorption by the cell wall matrix.",
publisher = "Pergamon-Elsevier Science Ltd, Oxford",
journal = "Chemosphere",
title = "The effects of ionizing radiation on the structure and antioxidative and metal-binding capacity of the cell wall of microalga Chlorella sorokiniana",
volume = "260",
doi = "10.1016/j.chemosphere.2020.127553"
}

Vojvodić, S., Danilović Luković, J., Zechmann, B., Jevtović, M., Bogdanović Pristov, J., Stanić, M., Lizzul, A. M., Pittman, J. K.,& Spasojević, I.. (2020). The effects of ionizing radiation on the structure and antioxidative and metal-binding capacity of the cell wall of microalga Chlorella sorokiniana. in Chemosphere
Pergamon-Elsevier Science Ltd, Oxford., 260.
https://doi.org/10.1016/j.chemosphere.2020.127553

Vojvodić S, Danilović Luković J, Zechmann B, Jevtović M, Bogdanović Pristov J, Stanić M, Lizzul AM, Pittman JK, Spasojević I. The effects of ionizing radiation on the structure and antioxidative and metal-binding capacity of the cell wall of microalga Chlorella sorokiniana. in Chemosphere. 2020;260.
doi:10.1016/j.chemosphere.2020.127553 .

Vojvodić, Snežana, Danilović Luković, Jelena, Zechmann, Bernd, Jevtović, Mima, Bogdanović Pristov, Jelena, Stanić, Marina, Lizzul, Alessandro Marco, Pittman, Jon K., Spasojević, Ivan, "The effects of ionizing radiation on the structure and antioxidative and metal-binding capacity of the cell wall of microalga Chlorella sorokiniana" in Chemosphere, 260 (2020),
https://doi.org/10.1016/j.chemosphere.2020.127553 . .

TY  - JOUR
AU  - Korać Jačić, Jelena
AU  - Nikolić, Ljiljana M.
AU  - Stanković, Dalibor M.
AU  - Opačić, Miloš
AU  - Dimitrijević, Milena
AU  - Savić, Danijela Z
AU  - Grguric-Sipka, Sanja
AU  - Spasojević, Ivan
AU  - Bogdanović Pristov, Jelena
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1344
AB  - Upon release in response to stress, epinephrine (Epi) may interact with labile iron pool in human plasma with potentially important (patho)physiological consequences. We have shown that Epi and Fe3+ build stable 1:1 high-spin bidentate complex at physiological pH, and that Epi does not undergo degradation in the presence of iron. However, the interactions of Epi with the more soluble Fe2+, and the impact of iron on biological activity of Epi are still not known. Herein we showed that Epi and Fe2+ build colorless complex which is stable under anaerobic conditions. In the presence of O-2, Epi promoted the oxidation of Fe2+ and the formation of Epi-Fe3+ complex. Cyclic voltammetry showed that mid-point potential of Epi-Fe2+ complex is very low (-582 mV vs. standard hydrogen electrode), which explains catalyzed oxidation of Fe2+. Next, we examined the impact of iron binding on biological performance of Epi using patch clamping in cell culture with constitutive expression of adrenergic receptors. Epi alone evoked an increase of outward currents, whereas Epi in the complex with Fe3+ did not. This implies that the binding of Epi to adrenergic receptors and their activation is prevented by the formation of complex with iron. Pro-oxidative activity of Epi-Fe2+ complex may represent a link between chronic stress and cardiovascular problems. On the other hand, labile iron could serve as a modulator of biological activity of ligands. Such interactions may be important in human pathologies that are related to iron overload or deficiency.
PB  - Elsevier Science Inc, New York
T2  - Free Radical Biology and Medicine
T1  - Ferrous iron binding to epinephrine promotes the oxidation of iron and impedes activation of adrenergic receptors
EP  - 127
SP  - 123
VL  - 148
DO  - 10.1016/j.freeradbiomed.2020.01.001
ER  - 

@article{
author = "Korać Jačić, Jelena and Nikolić, Ljiljana M. and Stanković, Dalibor M. and Opačić, Miloš and Dimitrijević, Milena and Savić, Danijela Z and Grguric-Sipka, Sanja and Spasojević, Ivan and Bogdanović Pristov, Jelena",
year = "2020",
abstract = "Upon release in response to stress, epinephrine (Epi) may interact with labile iron pool in human plasma with potentially important (patho)physiological consequences. We have shown that Epi and Fe3+ build stable 1:1 high-spin bidentate complex at physiological pH, and that Epi does not undergo degradation in the presence of iron. However, the interactions of Epi with the more soluble Fe2+, and the impact of iron on biological activity of Epi are still not known. Herein we showed that Epi and Fe2+ build colorless complex which is stable under anaerobic conditions. In the presence of O-2, Epi promoted the oxidation of Fe2+ and the formation of Epi-Fe3+ complex. Cyclic voltammetry showed that mid-point potential of Epi-Fe2+ complex is very low (-582 mV vs. standard hydrogen electrode), which explains catalyzed oxidation of Fe2+. Next, we examined the impact of iron binding on biological performance of Epi using patch clamping in cell culture with constitutive expression of adrenergic receptors. Epi alone evoked an increase of outward currents, whereas Epi in the complex with Fe3+ did not. This implies that the binding of Epi to adrenergic receptors and their activation is prevented by the formation of complex with iron. Pro-oxidative activity of Epi-Fe2+ complex may represent a link between chronic stress and cardiovascular problems. On the other hand, labile iron could serve as a modulator of biological activity of ligands. Such interactions may be important in human pathologies that are related to iron overload or deficiency.",
publisher = "Elsevier Science Inc, New York",
journal = "Free Radical Biology and Medicine",
title = "Ferrous iron binding to epinephrine promotes the oxidation of iron and impedes activation of adrenergic receptors",
pages = "127-123",
volume = "148",
doi = "10.1016/j.freeradbiomed.2020.01.001"
}

Korać Jačić, J., Nikolić, L. M., Stanković, D. M., Opačić, M., Dimitrijević, M., Savić, D. Z., Grguric-Sipka, S., Spasojević, I.,& Bogdanović Pristov, J.. (2020). Ferrous iron binding to epinephrine promotes the oxidation of iron and impedes activation of adrenergic receptors. in Free Radical Biology and Medicine
Elsevier Science Inc, New York., 148, 123-127.
https://doi.org/10.1016/j.freeradbiomed.2020.01.001

Korać Jačić J, Nikolić LM, Stanković DM, Opačić M, Dimitrijević M, Savić DZ, Grguric-Sipka S, Spasojević I, Bogdanović Pristov J. Ferrous iron binding to epinephrine promotes the oxidation of iron and impedes activation of adrenergic receptors. in Free Radical Biology and Medicine. 2020;148:123-127.
doi:10.1016/j.freeradbiomed.2020.01.001 .

Korać Jačić, Jelena, Nikolić, Ljiljana M., Stanković, Dalibor M., Opačić, Miloš, Dimitrijević, Milena, Savić, Danijela Z, Grguric-Sipka, Sanja, Spasojević, Ivan, Bogdanović Pristov, Jelena, "Ferrous iron binding to epinephrine promotes the oxidation of iron and impedes activation of adrenergic receptors" in Free Radical Biology and Medicine, 148 (2020):123-127,
https://doi.org/10.1016/j.freeradbiomed.2020.01.001 . .

TY  - JOUR
AU  - Bogdanović Pristov, Jelena
AU  - Opačić, Miloš
AU  - Bajčetić, Milica
AU  - Mandic, Vesna
AU  - Maglic, Dragana
AU  - Miković, Zeljko
AU  - Spasojević, Ivan
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1316
AB  - Oxidative status of maternal blood represents an important parameter of pregnancy that is involved in both, regulation of physiological processes and (if significantly altered) development of different pregnancy complications. Inherited thrombophilias represent genetic disorders that increase the risk of thromboembolism in pregnancy. Little is known about the impact of thrombophilia on the oxidative status of maternal blood. In this study, we analyzed oxidative status of blood of 56 women with pregnancies burdened by inherited thrombophilias. The status was established at three different trimesters using biochemical assays and electrochemical measurements, and it was compared to 10 age- and trimester-matching controls. Activities of superoxide dismutase, catalase, and glutathione reductase in the 1(st)and the 2(nd)trimester of thrombophilic pregnancy were lower than controls. Also, there was less oxidation in the plasma, according to higher concentration of reduced thiols and lower oxidation-reduction potential. Therefore, it appears that thrombophilic mothers do not experience oxidative stress in the circulation in the first two trimesters. However, the rise in GPx, GR and SOD activities in the 3(rd)trimester of thrombophilic pregnancy implies that the risk of oxidative stress is increased during the late pregnancy. These results are important for developing antioxidative treatment that could tackle thrombophilia-related pregnancy complications.
PB  - Public Library Science, San Francisco
T2  - PLoS One
T1  - Oxidative status of maternal blood in pregnancies burdened by inherited thrombophilias
IS  - 6
VL  - 15
DO  - 10.1371/journal.pone.0234253
ER  - 

@article{
author = "Bogdanović Pristov, Jelena and Opačić, Miloš and Bajčetić, Milica and Mandic, Vesna and Maglic, Dragana and Miković, Zeljko and Spasojević, Ivan",
year = "2020",
abstract = "Oxidative status of maternal blood represents an important parameter of pregnancy that is involved in both, regulation of physiological processes and (if significantly altered) development of different pregnancy complications. Inherited thrombophilias represent genetic disorders that increase the risk of thromboembolism in pregnancy. Little is known about the impact of thrombophilia on the oxidative status of maternal blood. In this study, we analyzed oxidative status of blood of 56 women with pregnancies burdened by inherited thrombophilias. The status was established at three different trimesters using biochemical assays and electrochemical measurements, and it was compared to 10 age- and trimester-matching controls. Activities of superoxide dismutase, catalase, and glutathione reductase in the 1(st)and the 2(nd)trimester of thrombophilic pregnancy were lower than controls. Also, there was less oxidation in the plasma, according to higher concentration of reduced thiols and lower oxidation-reduction potential. Therefore, it appears that thrombophilic mothers do not experience oxidative stress in the circulation in the first two trimesters. However, the rise in GPx, GR and SOD activities in the 3(rd)trimester of thrombophilic pregnancy implies that the risk of oxidative stress is increased during the late pregnancy. These results are important for developing antioxidative treatment that could tackle thrombophilia-related pregnancy complications.",
publisher = "Public Library Science, San Francisco",
journal = "PLoS One",
title = "Oxidative status of maternal blood in pregnancies burdened by inherited thrombophilias",
number = "6",
volume = "15",
doi = "10.1371/journal.pone.0234253"
}

Bogdanović Pristov, J., Opačić, M., Bajčetić, M., Mandic, V., Maglic, D., Miković, Z.,& Spasojević, I.. (2020). Oxidative status of maternal blood in pregnancies burdened by inherited thrombophilias. in PLoS One
Public Library Science, San Francisco., 15(6).
https://doi.org/10.1371/journal.pone.0234253

Bogdanović Pristov J, Opačić M, Bajčetić M, Mandic V, Maglic D, Miković Z, Spasojević I. Oxidative status of maternal blood in pregnancies burdened by inherited thrombophilias. in PLoS One. 2020;15(6).
doi:10.1371/journal.pone.0234253 .

Bogdanović Pristov, Jelena, Opačić, Miloš, Bajčetić, Milica, Mandic, Vesna, Maglic, Dragana, Miković, Zeljko, Spasojević, Ivan, "Oxidative status of maternal blood in pregnancies burdened by inherited thrombophilias" in PLoS One, 15, no. 6 (2020),
https://doi.org/10.1371/journal.pone.0234253 . .

TY  - CONF
AU  - Milicevic, Katarina
AU  - Bijelic, Dunja
AU  - Lazarevic, Milica
AU  - Miljkovic, Djordje
AU  - Bogdanović Pristov, Jelena
AU  - Petkovic, Branka
AU  - Andjus, Pavle
AU  - Momcilovic, Miljana
AU  - Nikolic, Ljiljana
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2017
AB  - Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS), characterized by focal neurodegenerative and demyelinating lesions. A major contributor to the pathogenic process of MS is the complex interaction between astrocytes and the CNS-infiltrating immune cells (CNS-IIC). The aim of our study is to explore how naïve astrocytes respond to the autoreactive immune cells that invade the CNS. For this reason, CNS-IICs were isolated and purified from spinal cords of rats with experimental autoimmune encephalomyelitis. Ca2+ dynamics was monitored in Fluo-4 labeled naïve astrocytes, isolated from spinal cords of wild type rat pups, following brief bath application of CNS-IIC or peripheral immune cells, with different pharmacological agents. CNS-IICs, and not peripheral immune cells, induced robust elevation of intracellular Ca2+ in naïve astrocytes. We demonstrated that this CNS IIC-induced increase in astrocyte Ca2+ does not depend on the metabotropic glutamate receptors, metabotropic purinergic P2Y1 receptors or TRPA1 channels. Remarkably, further research showed that Ca2+ elevation in astrocytes upon exposure to CNS IICs is due to the activation of ionotropic purinergic P2X7 receptors. Bioluminescence assay showed that immune cell-derived ATP is not a cause of astrocytic P2X7 receptor activation. In fact, we showed that CNS-IICs promoted P2X7 receptor activation and increase in cytosolic Ca2+ in astrocytes by astrocytic hemichannel-dependent ATP release mechanism. Our data suggest that direct contact between astrocytes and CNS IICs induce ATP-dependent Ca2+ changes in astrocytes and points to the new aspect of cell-cell interactions in propagation of neuroinflammatory response in CNS autoimmunity.
PB  - Querétaro, México: Instituto de neurobiologia
C3  - Proceedings: 3rd Symposium on Physiology and pathology of neuroglia; 2020 Noc 24-25; Virtual. Querétaro, México: Instituto de neurobiologia
T1  - Central nervous system-infiltrated immune cells alter calcium dynamics in astrocytes
SP  - 45
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2017
ER  - 

@conference{
author = "Milicevic, Katarina and Bijelic, Dunja and Lazarevic, Milica and Miljkovic, Djordje and Bogdanović Pristov, Jelena and Petkovic, Branka and Andjus, Pavle and Momcilovic, Miljana and Nikolic, Ljiljana",
year = "2020",
abstract = "Multiple sclerosis (MS) is a chronic inflammatory disease of the central nervous system (CNS), characterized by focal neurodegenerative and demyelinating lesions. A major contributor to the pathogenic process of MS is the complex interaction between astrocytes and the CNS-infiltrating immune cells (CNS-IIC). The aim of our study is to explore how naïve astrocytes respond to the autoreactive immune cells that invade the CNS. For this reason, CNS-IICs were isolated and purified from spinal cords of rats with experimental autoimmune encephalomyelitis. Ca2+ dynamics was monitored in Fluo-4 labeled naïve astrocytes, isolated from spinal cords of wild type rat pups, following brief bath application of CNS-IIC or peripheral immune cells, with different pharmacological agents. CNS-IICs, and not peripheral immune cells, induced robust elevation of intracellular Ca2+ in naïve astrocytes. We demonstrated that this CNS IIC-induced increase in astrocyte Ca2+ does not depend on the metabotropic glutamate receptors, metabotropic purinergic P2Y1 receptors or TRPA1 channels. Remarkably, further research showed that Ca2+ elevation in astrocytes upon exposure to CNS IICs is due to the activation of ionotropic purinergic P2X7 receptors. Bioluminescence assay showed that immune cell-derived ATP is not a cause of astrocytic P2X7 receptor activation. In fact, we showed that CNS-IICs promoted P2X7 receptor activation and increase in cytosolic Ca2+ in astrocytes by astrocytic hemichannel-dependent ATP release mechanism. Our data suggest that direct contact between astrocytes and CNS IICs induce ATP-dependent Ca2+ changes in astrocytes and points to the new aspect of cell-cell interactions in propagation of neuroinflammatory response in CNS autoimmunity.",
publisher = "Querétaro, México: Instituto de neurobiologia",
journal = "Proceedings: 3rd Symposium on Physiology and pathology of neuroglia; 2020 Noc 24-25; Virtual. Querétaro, México: Instituto de neurobiologia",
title = "Central nervous system-infiltrated immune cells alter calcium dynamics in astrocytes",
pages = "45",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2017"
}

Milicevic, K., Bijelic, D., Lazarevic, M., Miljkovic, D., Bogdanović Pristov, J., Petkovic, B., Andjus, P., Momcilovic, M.,& Nikolic, L.. (2020). Central nervous system-infiltrated immune cells alter calcium dynamics in astrocytes. in Proceedings: 3rd Symposium on Physiology and pathology of neuroglia; 2020 Noc 24-25; Virtual. Querétaro, México: Instituto de neurobiologia
Querétaro, México: Instituto de neurobiologia., 45.
https://hdl.handle.net/21.15107/rcub_rimsi_2017

Milicevic K, Bijelic D, Lazarevic M, Miljkovic D, Bogdanović Pristov J, Petkovic B, Andjus P, Momcilovic M, Nikolic L. Central nervous system-infiltrated immune cells alter calcium dynamics in astrocytes. in Proceedings: 3rd Symposium on Physiology and pathology of neuroglia; 2020 Noc 24-25; Virtual. Querétaro, México: Instituto de neurobiologia. 2020;:45.
https://hdl.handle.net/21.15107/rcub_rimsi_2017 .

Milicevic, Katarina, Bijelic, Dunja, Lazarevic, Milica, Miljkovic, Djordje, Bogdanović Pristov, Jelena, Petkovic, Branka, Andjus, Pavle, Momcilovic, Miljana, Nikolic, Ljiljana, "Central nervous system-infiltrated immune cells alter calcium dynamics in astrocytes" in Proceedings: 3rd Symposium on Physiology and pathology of neuroglia; 2020 Noc 24-25; Virtual. Querétaro, México: Instituto de neurobiologia (2020):45,
https://hdl.handle.net/21.15107/rcub_rimsi_2017 .

TY  - JOUR
AU  - Bijelic, Dunja D.
AU  - Milicević, Katarina
AU  - Lazarević, Milica N.
AU  - Miljković, Đorđe
AU  - Bogdanović Pristov, Jelena
AU  - Savić, Danijela Z
AU  - Petković, Branka
AU  - Andjus, Pavle R.
AU  - Momcilović, Miljana
AU  - Nikolić, Ljiljana M.
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1317
AB  - Interaction between autoreactive immune cells and astroglia is an important part of the pathologic processes that fuel neurodegeneration in multiple sclerosis. In this inflammatory disease, immune cells enter into the central nervous system (CNS) and they spread through CNS parenchyma, but the impact of these autoreactive immune cells on the activity pattern of astrocytes has not been defined. By exploiting naive astrocytes in culture and CNS-infiltrated immune cells (CNS IICs) isolated from rat with experimental autoimmune encephalomyelitis (EAE), here we demonstrate previously unrecognized properties of immune cell-astrocyte interaction. We show that CNS IICs but not the peripheral immune cell application, evokes a rapid and vigorous intracellular Ca(2+)increase in astrocytes by promoting glial release of ATP. ATP propagated Ca(2+)elevation through glial purinergic P2X7 receptor activation by the hemichannel-dependent nucleotide release mechanism. Astrocyte Ca(2+)increase is specifically triggered by the autoreactive CD4(+)T-cell application and these two cell types exhibit close spatial interaction in EAE. Therefore, Ca(2+)signals may mediate a rapid astroglial response to the autoreactive immune cells in their local environment. This property of immune cell-astrocyte interaction may be important to consider in studies interrogating CNS autoimmune disease.
PB  - Wiley, Hoboken
T2  - Journal of Neuroscience Research
T1  - Central nervous system-infiltrated immune cells induce calcium increase in astrocytes via astroglial purinergic signaling
EP  - 2332
IS  - 11
SP  - 2317
VL  - 98
DO  - 10.1002/jnr.24699
ER  - 

@article{
author = "Bijelic, Dunja D. and Milicević, Katarina and Lazarević, Milica N. and Miljković, Đorđe and Bogdanović Pristov, Jelena and Savić, Danijela Z and Petković, Branka and Andjus, Pavle R. and Momcilović, Miljana and Nikolić, Ljiljana M.",
year = "2020",
abstract = "Interaction between autoreactive immune cells and astroglia is an important part of the pathologic processes that fuel neurodegeneration in multiple sclerosis. In this inflammatory disease, immune cells enter into the central nervous system (CNS) and they spread through CNS parenchyma, but the impact of these autoreactive immune cells on the activity pattern of astrocytes has not been defined. By exploiting naive astrocytes in culture and CNS-infiltrated immune cells (CNS IICs) isolated from rat with experimental autoimmune encephalomyelitis (EAE), here we demonstrate previously unrecognized properties of immune cell-astrocyte interaction. We show that CNS IICs but not the peripheral immune cell application, evokes a rapid and vigorous intracellular Ca(2+)increase in astrocytes by promoting glial release of ATP. ATP propagated Ca(2+)elevation through glial purinergic P2X7 receptor activation by the hemichannel-dependent nucleotide release mechanism. Astrocyte Ca(2+)increase is specifically triggered by the autoreactive CD4(+)T-cell application and these two cell types exhibit close spatial interaction in EAE. Therefore, Ca(2+)signals may mediate a rapid astroglial response to the autoreactive immune cells in their local environment. This property of immune cell-astrocyte interaction may be important to consider in studies interrogating CNS autoimmune disease.",
publisher = "Wiley, Hoboken",
journal = "Journal of Neuroscience Research",
title = "Central nervous system-infiltrated immune cells induce calcium increase in astrocytes via astroglial purinergic signaling",
pages = "2332-2317",
number = "11",
volume = "98",
doi = "10.1002/jnr.24699"
}

Bijelic, D. D., Milicević, K., Lazarević, M. N., Miljković, Đ., Bogdanović Pristov, J., Savić, D. Z., Petković, B., Andjus, P. R., Momcilović, M.,& Nikolić, L. M.. (2020). Central nervous system-infiltrated immune cells induce calcium increase in astrocytes via astroglial purinergic signaling. in Journal of Neuroscience Research
Wiley, Hoboken., 98(11), 2317-2332.
https://doi.org/10.1002/jnr.24699

Bijelic DD, Milicević K, Lazarević MN, Miljković Đ, Bogdanović Pristov J, Savić DZ, Petković B, Andjus PR, Momcilović M, Nikolić LM. Central nervous system-infiltrated immune cells induce calcium increase in astrocytes via astroglial purinergic signaling. in Journal of Neuroscience Research. 2020;98(11):2317-2332.
doi:10.1002/jnr.24699 .

Bijelic, Dunja D., Milicević, Katarina, Lazarević, Milica N., Miljković, Đorđe, Bogdanović Pristov, Jelena, Savić, Danijela Z, Petković, Branka, Andjus, Pavle R., Momcilović, Miljana, Nikolić, Ljiljana M., "Central nervous system-infiltrated immune cells induce calcium increase in astrocytes via astroglial purinergic signaling" in Journal of Neuroscience Research, 98, no. 11 (2020):2317-2332,
https://doi.org/10.1002/jnr.24699 . .

TY  - CONF
AU  - Dimitrijević, Milena
AU  - Bogdanović Pristov, Jelena
AU  - Žižić, Milan
AU  - Stanković, Dalibor
AU  - Bajuk-Bogdanović, Danica
AU  - Stanić, Marina
AU  - Hagen, Wilfred
AU  - Piccioli, Mario
AU  - Spasojević, Ivan
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/3187
AB  - The structure of biliverdin (BV) and its complexion capacity with Cu2+ in dependence of
solvent choice has been examined. We first examined coordinate/redox interactions of BV
with Cu2+ in phosphate buffer at pH 7.4, using spectrophotometry, HESI-MS, Raman
spectroscopy, 1HNMR, EPR, fluorimetry, and electrochemical methods. BV formed a stable
coordination complex with copper in 1 : 1 stoichiometry. The structure of BV was more
planar and energetically stable in the complex. The complex showed strong paramagnetic
effects that were attributed to an unpaired delocalized e−. The delocalized electron may come
from BV or Cu2+, so the complex is formally composed either of BV radical cation and Cu1+
or of BV radical anion and Cu3+. The complex underwent oxidation only in the presence of
both O2 and an excess of Cu2+, or a strong oxidizing agent, and it was resistant to reducing
agents. The biological effects of the stable BV metallocomplex containing a delocalized
unpaired electron should be further examined, and may provide an answer to the longstanding
question of high energy investment in the catabolism of BV, which represents a
relatively harmless molecule per se. The complex possibility was quite different after
changing the solvent. BV structure in DMSO was analyzed by using NMR techniques and
unrestricted density function theory simulations to explain the incapacity of BV to build
coordination complex(es) with Cu2+ in dimethyl sulfoxide, which was confirmed by UV-Vis,
EPR and NMR spectroscopy. NMR showed that N atoms of BV are protonated in all four
pyrrole rings. The structure is stabilized by two hydrogen bonds between NH moieties and
carbonyl oxygens from opposite terminal pyrrole rings, and by the bending of propionyl chain
with carboxyl group out of the plain toward central position of BV. The simulations of
deprotonated BV, which builds copper complexes in water and chloroform as described
previously, showed a different conformation and organization of hydrogen bonds. Taking into
account that deprotonation represents a critical step in coordinate bonds formation, the
protonation of an additional N atom may represent a key difference between the interactions
of BV with copper in different solvents.
PB  - COST Action CA15133
C3  - Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland
T1  - Structure of biliverdin and its interaction with copper
EP  - 44
SP  - 44
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_3187
ER  - 

@conference{
author = "Dimitrijević, Milena and Bogdanović Pristov, Jelena and Žižić, Milan and Stanković, Dalibor and Bajuk-Bogdanović, Danica and Stanić, Marina and Hagen, Wilfred and Piccioli, Mario and Spasojević, Ivan",
year = "2019",
abstract = "The structure of biliverdin (BV) and its complexion capacity with Cu2+ in dependence of
solvent choice has been examined. We first examined coordinate/redox interactions of BV
with Cu2+ in phosphate buffer at pH 7.4, using spectrophotometry, HESI-MS, Raman
spectroscopy, 1HNMR, EPR, fluorimetry, and electrochemical methods. BV formed a stable
coordination complex with copper in 1 : 1 stoichiometry. The structure of BV was more
planar and energetically stable in the complex. The complex showed strong paramagnetic
effects that were attributed to an unpaired delocalized e−. The delocalized electron may come
from BV or Cu2+, so the complex is formally composed either of BV radical cation and Cu1+
or of BV radical anion and Cu3+. The complex underwent oxidation only in the presence of
both O2 and an excess of Cu2+, or a strong oxidizing agent, and it was resistant to reducing
agents. The biological effects of the stable BV metallocomplex containing a delocalized
unpaired electron should be further examined, and may provide an answer to the longstanding
question of high energy investment in the catabolism of BV, which represents a
relatively harmless molecule per se. The complex possibility was quite different after
changing the solvent. BV structure in DMSO was analyzed by using NMR techniques and
unrestricted density function theory simulations to explain the incapacity of BV to build
coordination complex(es) with Cu2+ in dimethyl sulfoxide, which was confirmed by UV-Vis,
EPR and NMR spectroscopy. NMR showed that N atoms of BV are protonated in all four
pyrrole rings. The structure is stabilized by two hydrogen bonds between NH moieties and
carbonyl oxygens from opposite terminal pyrrole rings, and by the bending of propionyl chain
with carboxyl group out of the plain toward central position of BV. The simulations of
deprotonated BV, which builds copper complexes in water and chloroform as described
previously, showed a different conformation and organization of hydrogen bonds. Taking into
account that deprotonation represents a critical step in coordinate bonds formation, the
protonation of an additional N atom may represent a key difference between the interactions
of BV with copper in different solvents.",
publisher = "COST Action CA15133",
journal = "Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland",
title = "Structure of biliverdin and its interaction with copper",
pages = "44-44",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_3187"
}

Dimitrijević, M., Bogdanović Pristov, J., Žižić, M., Stanković, D., Bajuk-Bogdanović, D., Stanić, M., Hagen, W., Piccioli, M.,& Spasojević, I.. (2019). Structure of biliverdin and its interaction with copper. in Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland
COST Action CA15133., 44-44.
https://hdl.handle.net/21.15107/rcub_rimsi_3187

Dimitrijević M, Bogdanović Pristov J, Žižić M, Stanković D, Bajuk-Bogdanović D, Stanić M, Hagen W, Piccioli M, Spasojević I. Structure of biliverdin and its interaction with copper. in Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland. 2019;:44-44.
https://hdl.handle.net/21.15107/rcub_rimsi_3187 .

Dimitrijević, Milena, Bogdanović Pristov, Jelena, Žižić, Milan, Stanković, Dalibor, Bajuk-Bogdanović, Danica, Stanić, Marina, Hagen, Wilfred, Piccioli, Mario, Spasojević, Ivan, "Structure of biliverdin and its interaction with copper" in Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland (2019):44-44,
https://hdl.handle.net/21.15107/rcub_rimsi_3187 .

TY  - CONF
AU  - Bozic Cvijan, Bojana
AU  - Korać Jačić, Jelena
AU  - Stanković, Dalibor
AU  - Stanić, Marina
AU  - Popovic Bijelic, Ana
AU  - Bogdanović Pristov, Jelena
AU  - Spasojević, Ivan
AU  - Bajcetic, Milica
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2847
AB  - Toxic effects of unconjugated bilirubin (BR) in neonatal hyperbilirubinemia have been related to redox and/or
coordinate interactions with Cu2+. However, the development and mechanisms of such interactions at physiological
pH have not been resolved. This study shows that BR reduces Cu2+ to Cu1+ in 1:1 stoichiometry.
Apparently, BR undergoes degradation, i.e. BR and Cu2+ do not form stable complexes. The binding of Cu2+ to
inorganic phosphates, liposomal phosphate groups, or to chelating drug penicillamine, impedes redox interactions
with BR. Cu1+ undergoes spontaneous oxidation by O2 resulting in hydrogen peroxide accumulation and
hydroxyl radical production. In relation to this, copper and BR induced synergistic oxidative/damaging effects
on erythrocytes membrane, which were alleviated by penicillamine. The production of reactive oxygen species
by BR and copper represents a plausible cause of BR toxic effects and cell damage in hyperbilirubinemia. Further
examination of therapeutic potentials of copper chelators in the treatment of severe neonatal hyperbilirubinemia
is needed.
PB  - Srpsko farmakološko društvo Beograd, Novi Sad
C3  - 14th Serbian Congress of Farmacologists and 4th Serbian Congress of Clinical Pharmacology with international participation
T1  - Penicillamine prevents damaging redox in vitro interactions of bilirubin and copper
EP  - 242
SP  - 240
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2847
ER  - 

@conference{
author = "Bozic Cvijan, Bojana and Korać Jačić, Jelena and Stanković, Dalibor and Stanić, Marina and Popovic Bijelic, Ana and Bogdanović Pristov, Jelena and Spasojević, Ivan and Bajcetic, Milica",
year = "2019",
abstract = "Toxic effects of unconjugated bilirubin (BR) in neonatal hyperbilirubinemia have been related to redox and/or
coordinate interactions with Cu2+. However, the development and mechanisms of such interactions at physiological
pH have not been resolved. This study shows that BR reduces Cu2+ to Cu1+ in 1:1 stoichiometry.
Apparently, BR undergoes degradation, i.e. BR and Cu2+ do not form stable complexes. The binding of Cu2+ to
inorganic phosphates, liposomal phosphate groups, or to chelating drug penicillamine, impedes redox interactions
with BR. Cu1+ undergoes spontaneous oxidation by O2 resulting in hydrogen peroxide accumulation and
hydroxyl radical production. In relation to this, copper and BR induced synergistic oxidative/damaging effects
on erythrocytes membrane, which were alleviated by penicillamine. The production of reactive oxygen species
by BR and copper represents a plausible cause of BR toxic effects and cell damage in hyperbilirubinemia. Further
examination of therapeutic potentials of copper chelators in the treatment of severe neonatal hyperbilirubinemia
is needed.",
publisher = "Srpsko farmakološko društvo Beograd, Novi Sad",
journal = "14th Serbian Congress of Farmacologists and 4th Serbian Congress of Clinical Pharmacology with international participation",
title = "Penicillamine prevents damaging redox in vitro interactions of bilirubin and copper",
pages = "242-240",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2847"
}

Bozic Cvijan, B., Korać Jačić, J., Stanković, D., Stanić, M., Popovic Bijelic, A., Bogdanović Pristov, J., Spasojević, I.,& Bajcetic, M.. (2019). Penicillamine prevents damaging redox in vitro interactions of bilirubin and copper. in 14th Serbian Congress of Farmacologists and 4th Serbian Congress of Clinical Pharmacology with international participation
Srpsko farmakološko društvo Beograd, Novi Sad., 240-242.
https://hdl.handle.net/21.15107/rcub_rimsi_2847

Bozic Cvijan B, Korać Jačić J, Stanković D, Stanić M, Popovic Bijelic A, Bogdanović Pristov J, Spasojević I, Bajcetic M. Penicillamine prevents damaging redox in vitro interactions of bilirubin and copper. in 14th Serbian Congress of Farmacologists and 4th Serbian Congress of Clinical Pharmacology with international participation. 2019;:240-242.
https://hdl.handle.net/21.15107/rcub_rimsi_2847 .

Bozic Cvijan, Bojana, Korać Jačić, Jelena, Stanković, Dalibor, Stanić, Marina, Popovic Bijelic, Ana, Bogdanović Pristov, Jelena, Spasojević, Ivan, Bajcetic, Milica, "Penicillamine prevents damaging redox in vitro interactions of bilirubin and copper" in 14th Serbian Congress of Farmacologists and 4th Serbian Congress of Clinical Pharmacology with international participation (2019):240-242,
https://hdl.handle.net/21.15107/rcub_rimsi_2847 .

TY  - CONF
AU  - Danilović Luković, Jelena
AU  - Zechmann, Bernd
AU  - Vojvodić, Snežana
AU  - Bogdanović Pristov, Jelena
AU  - Stanić, Marina
AU  - Pittman, Jon K.
AU  - Spasojević, Ivan
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2408
AB  - Cell wall of C. sorokiniana is composed of trilaminar sheath (TLS electron
translucent line inserted between two electron dense lines; the outermost layer is a mature mother
wall, while the thin inner layer is a daughter wall), and fibrilar cell wall. It is noteworthy that the
obtained diameters for untreated microalgae were in accordance with available data. The analysis of TEM micrographs showed that there were no significant changes in the thickness of
TLS for any of the used doses. However, the diameter of fibrillar wall was increased in response
to irradiation for microalgae exposed to 1 Gy and 2 Gy. The thickness of cell wall in microalgae
exposed to 5 Gy was not significantly different than in controls. A similar trend was
observed by gravimetry of dry cell wall isolates normalized to biomass. It is important to note that
no effects of radiation on biomass, at doses applied here, could be observed.
PB  - Institute for Biological Research “Siniša Stanković” and others contributors
C3  - 14th Multinational Congress on Microscopy. September 15–20, 2019, Belgrade, Serbia
T1  - The effects of ionizing radiation on the cell wall of microalgae Chlorella sorokiniana – TEM study
EP  - 153
SP  - 152
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2408
ER  - 

@conference{
author = "Danilović Luković, Jelena and Zechmann, Bernd and Vojvodić, Snežana and Bogdanović Pristov, Jelena and Stanić, Marina and Pittman, Jon K. and Spasojević, Ivan",
year = "2019",
abstract = "Cell wall of C. sorokiniana is composed of trilaminar sheath (TLS electron
translucent line inserted between two electron dense lines; the outermost layer is a mature mother
wall, while the thin inner layer is a daughter wall), and fibrilar cell wall. It is noteworthy that the
obtained diameters for untreated microalgae were in accordance with available data. The analysis of TEM micrographs showed that there were no significant changes in the thickness of
TLS for any of the used doses. However, the diameter of fibrillar wall was increased in response
to irradiation for microalgae exposed to 1 Gy and 2 Gy. The thickness of cell wall in microalgae
exposed to 5 Gy was not significantly different than in controls. A similar trend was
observed by gravimetry of dry cell wall isolates normalized to biomass. It is important to note that
no effects of radiation on biomass, at doses applied here, could be observed.",
publisher = "Institute for Biological Research “Siniša Stanković” and others contributors",
journal = "14th Multinational Congress on Microscopy. September 15–20, 2019, Belgrade, Serbia",
title = "The effects of ionizing radiation on the cell wall of microalgae Chlorella sorokiniana – TEM study",
pages = "153-152",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2408"
}

Danilović Luković, J., Zechmann, B., Vojvodić, S., Bogdanović Pristov, J., Stanić, M., Pittman, J. K.,& Spasojević, I.. (2019). The effects of ionizing radiation on the cell wall of microalgae Chlorella sorokiniana – TEM study. in 14th Multinational Congress on Microscopy. September 15–20, 2019, Belgrade, Serbia
Institute for Biological Research “Siniša Stanković” and others contributors., 152-153.
https://hdl.handle.net/21.15107/rcub_rimsi_2408

Danilović Luković J, Zechmann B, Vojvodić S, Bogdanović Pristov J, Stanić M, Pittman JK, Spasojević I. The effects of ionizing radiation on the cell wall of microalgae Chlorella sorokiniana – TEM study. in 14th Multinational Congress on Microscopy. September 15–20, 2019, Belgrade, Serbia. 2019;:152-153.
https://hdl.handle.net/21.15107/rcub_rimsi_2408 .

Danilović Luković, Jelena, Zechmann, Bernd, Vojvodić, Snežana, Bogdanović Pristov, Jelena, Stanić, Marina, Pittman, Jon K., Spasojević, Ivan, "The effects of ionizing radiation on the cell wall of microalgae Chlorella sorokiniana – TEM study" in 14th Multinational Congress on Microscopy. September 15–20, 2019, Belgrade, Serbia (2019):152-153,
https://hdl.handle.net/21.15107/rcub_rimsi_2408 .

TY  - CONF
AU  - Vojvodić, Snežana
AU  - Danilović Luković, Jelena
AU  - Zechmann, Bernd
AU  - Bogdanović Pristov, Jelena
AU  - Stanić, Marina
AU  - Pittman, Jon K.
AU  - Spasojević, Ivan
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2414
AB  - Microalgae are exposed to ionizing radiation from natural (e.g. radionuclides from the soil) and anthropogenic sources (such as radioactive waste, nuclear power accidents, etc). However, the mechanisms of adaptation to radiation are poorly understood. The aim of our study was to determine the effects of X-ray irradiation on the cell wall of Chlorella sorokiniana. C. sorokiniana (CCAP 211/8K) culture was grown in 3N-BBM+V medium, at 22°C with a continuous photon flux of 120 μmol m−2 s−1 for 20 days, reaching stationary phase. Cultures were then exposed to X-rays at doses of 1, 2 and 5 Gy, left under the same conditions for additional 24 h, and analyzed using TEM (postfixation with 1% osmium tetroxide, embedded in resin for soft blocks, and stained with uranyl acetate and lead acetate), and gravimetry. The analysis of TEM micrographs showed that there were no significant changes in the thickness of trilaminar sheath for any of the used doses. However, the diameter of the fibrillar wall was increased in response to irradiation: 105.5 ± 7.5 nm for untreated samples vs. 135.0 ± 9.5 nm (p = 0.015) for microalgae exposed to 1 Gy, and 127.9 ± 7.4 nm (p = 0.036) for exposure to 2 Gy. The thickness of the cell wall in microalgae exposed to 5 Gy (118.6 ± 8.6 nm) was not significantly different than in controls. A similar trend was observed by gravimetry of dry cell wall isolates normalized to biomass. It is important to note that no effects of radiation on biomass, at doses applied here, could be observed. It appears that Chlorella sorokiniana responds promptly to ionizing radiation by fortifying its ‘first line of defense’. The observed changes may be of particular interest for bioremediation, taking into account the capacity of the cell wall to bind water-soluble metals, including radionuclides.
PB  - Taylor & Francis Group
C3  - Journal of Experimental Botany
T1  - Adaptive response of Chlorella sorokiniana to ionizing radiation on the level of cell wall
EP  - 166
IS  - Supp 1
SP  - 166
VL  - 54
DO  - 10.1080/09670262.2019.1626628
ER  - 

@conference{
author = "Vojvodić, Snežana and Danilović Luković, Jelena and Zechmann, Bernd and Bogdanović Pristov, Jelena and Stanić, Marina and Pittman, Jon K. and Spasojević, Ivan",
year = "2019",
abstract = "Microalgae are exposed to ionizing radiation from natural (e.g. radionuclides from the soil) and anthropogenic sources (such as radioactive waste, nuclear power accidents, etc). However, the mechanisms of adaptation to radiation are poorly understood. The aim of our study was to determine the effects of X-ray irradiation on the cell wall of Chlorella sorokiniana. C. sorokiniana (CCAP 211/8K) culture was grown in 3N-BBM+V medium, at 22°C with a continuous photon flux of 120 μmol m−2 s−1 for 20 days, reaching stationary phase. Cultures were then exposed to X-rays at doses of 1, 2 and 5 Gy, left under the same conditions for additional 24 h, and analyzed using TEM (postfixation with 1% osmium tetroxide, embedded in resin for soft blocks, and stained with uranyl acetate and lead acetate), and gravimetry. The analysis of TEM micrographs showed that there were no significant changes in the thickness of trilaminar sheath for any of the used doses. However, the diameter of the fibrillar wall was increased in response to irradiation: 105.5 ± 7.5 nm for untreated samples vs. 135.0 ± 9.5 nm (p = 0.015) for microalgae exposed to 1 Gy, and 127.9 ± 7.4 nm (p = 0.036) for exposure to 2 Gy. The thickness of the cell wall in microalgae exposed to 5 Gy (118.6 ± 8.6 nm) was not significantly different than in controls. A similar trend was observed by gravimetry of dry cell wall isolates normalized to biomass. It is important to note that no effects of radiation on biomass, at doses applied here, could be observed. It appears that Chlorella sorokiniana responds promptly to ionizing radiation by fortifying its ‘first line of defense’. The observed changes may be of particular interest for bioremediation, taking into account the capacity of the cell wall to bind water-soluble metals, including radionuclides.",
publisher = "Taylor & Francis Group",
journal = "Journal of Experimental Botany",
title = "Adaptive response of Chlorella sorokiniana to ionizing radiation on the level of cell wall",
pages = "166-166",
number = "Supp 1",
volume = "54",
doi = "10.1080/09670262.2019.1626628"
}

Vojvodić, S., Danilović Luković, J., Zechmann, B., Bogdanović Pristov, J., Stanić, M., Pittman, J. K.,& Spasojević, I.. (2019). Adaptive response of Chlorella sorokiniana to ionizing radiation on the level of cell wall. in Journal of Experimental Botany
Taylor & Francis Group., 54(Supp 1), 166-166.
https://doi.org/10.1080/09670262.2019.1626628

Vojvodić S, Danilović Luković J, Zechmann B, Bogdanović Pristov J, Stanić M, Pittman JK, Spasojević I. Adaptive response of Chlorella sorokiniana to ionizing radiation on the level of cell wall. in Journal of Experimental Botany. 2019;54(Supp 1):166-166.
doi:10.1080/09670262.2019.1626628 .

Vojvodić, Snežana, Danilović Luković, Jelena, Zechmann, Bernd, Bogdanović Pristov, Jelena, Stanić, Marina, Pittman, Jon K., Spasojević, Ivan, "Adaptive response of Chlorella sorokiniana to ionizing radiation on the level of cell wall" in Journal of Experimental Botany, 54, no. Supp 1 (2019):166-166,
https://doi.org/10.1080/09670262.2019.1626628 . .

TY  - CONF
AU  - Romanović, Mima
AU  - Stanić, Marina
AU  - Bogdanović Pristov, Jelena
AU  - Morina, Arian
AU  - Dimitrijević, Milena
AU  - Pittman, Jon K.
AU  - Spasojević, Ivan
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2415
AB  - The impact of ionizing radiation on microalgae represents an important biotechnological and environmental issue. However, it has not been sufficiently investigated. Herein, we analyzed the effects of lowdose X-radiation on the growth, lipid production, and chlorophyll (Chl) and carotenoids content in Chlorella sorokiniana (CCAP 211/8K), which is both, a model and biotechnologically relevant species. C. sorokiniana culture was grown in 3N-BBM+V medium, at 22°C with a continuous photon flux of 120 μmol m−2 s−1. X-ray irradiation was applied in the early exponential phase of growth, at different doses (1, 2, 5, 10, 20 Gy) and rates (0.06, 0.24, 0.55 Gy/min). Parameters were monitored for 30 days. The exposure to 2 Gy and 5 Gy had a positive impact on biomass production. Dry weight was significantly higher in treated cultures than controls at days 25 and 30. Total lipid content (according to Nile Red fluorescence assay) was increased at day 30 in cultures exposed to 1 Gy (0.06 Gy/min) and 5 Gy (0.24 Gy/min). Chl content was increased for these doses in the exponential phase of growth. Chl b and carotenoids content was not significantly affected by irradiation. It is noteworthy that higher doses (10 and 20 Gy) had suppressing effects on growth and lipid production. The positive effects of ionizing radiation on biomass and lipid production can be attributed to the phenomenon of radiation hormesis (beneficial effects of low dose radiation on different biological parameters). Radiation hormesis has been shown previously documented on a number of plant species, and can be potentially employed in microalgae industry. On the other hand, microalgae are exposed to increased levels of ionizing irradiation in aquatic systems that are infested with radionuclides either naturally or by anthropogenic activity. Our results may add to the understanding of eco-physiology of
microalgae in such systems.
PB  - Taylor & Francis Group
C3  - European Journal of Phycology
T1  - The effects of ionizing irradiation on growth and lipid production in Chlorella sorokiniana
EP  - 165
IS  - Supp 1
SP  - 164
VL  - 54
DO  - 10.1080/09670262.2019.1626628
ER  - 

@conference{
author = "Romanović, Mima and Stanić, Marina and Bogdanović Pristov, Jelena and Morina, Arian and Dimitrijević, Milena and Pittman, Jon K. and Spasojević, Ivan",
year = "2019",
abstract = "The impact of ionizing radiation on microalgae represents an important biotechnological and environmental issue. However, it has not been sufficiently investigated. Herein, we analyzed the effects of lowdose X-radiation on the growth, lipid production, and chlorophyll (Chl) and carotenoids content in Chlorella sorokiniana (CCAP 211/8K), which is both, a model and biotechnologically relevant species. C. sorokiniana culture was grown in 3N-BBM+V medium, at 22°C with a continuous photon flux of 120 μmol m−2 s−1. X-ray irradiation was applied in the early exponential phase of growth, at different doses (1, 2, 5, 10, 20 Gy) and rates (0.06, 0.24, 0.55 Gy/min). Parameters were monitored for 30 days. The exposure to 2 Gy and 5 Gy had a positive impact on biomass production. Dry weight was significantly higher in treated cultures than controls at days 25 and 30. Total lipid content (according to Nile Red fluorescence assay) was increased at day 30 in cultures exposed to 1 Gy (0.06 Gy/min) and 5 Gy (0.24 Gy/min). Chl content was increased for these doses in the exponential phase of growth. Chl b and carotenoids content was not significantly affected by irradiation. It is noteworthy that higher doses (10 and 20 Gy) had suppressing effects on growth and lipid production. The positive effects of ionizing radiation on biomass and lipid production can be attributed to the phenomenon of radiation hormesis (beneficial effects of low dose radiation on different biological parameters). Radiation hormesis has been shown previously documented on a number of plant species, and can be potentially employed in microalgae industry. On the other hand, microalgae are exposed to increased levels of ionizing irradiation in aquatic systems that are infested with radionuclides either naturally or by anthropogenic activity. Our results may add to the understanding of eco-physiology of
microalgae in such systems.",
publisher = "Taylor & Francis Group",
journal = "European Journal of Phycology",
title = "The effects of ionizing irradiation on growth and lipid production in Chlorella sorokiniana",
pages = "165-164",
number = "Supp 1",
volume = "54",
doi = "10.1080/09670262.2019.1626628"
}

Romanović, M., Stanić, M., Bogdanović Pristov, J., Morina, A., Dimitrijević, M., Pittman, J. K.,& Spasojević, I.. (2019). The effects of ionizing irradiation on growth and lipid production in Chlorella sorokiniana. in European Journal of Phycology
Taylor & Francis Group., 54(Supp 1), 164-165.
https://doi.org/10.1080/09670262.2019.1626628

Romanović M, Stanić M, Bogdanović Pristov J, Morina A, Dimitrijević M, Pittman JK, Spasojević I. The effects of ionizing irradiation on growth and lipid production in Chlorella sorokiniana. in European Journal of Phycology. 2019;54(Supp 1):164-165.
doi:10.1080/09670262.2019.1626628 .

Romanović, Mima, Stanić, Marina, Bogdanović Pristov, Jelena, Morina, Arian, Dimitrijević, Milena, Pittman, Jon K., Spasojević, Ivan, "The effects of ionizing irradiation on growth and lipid production in Chlorella sorokiniana" in European Journal of Phycology, 54, no. Supp 1 (2019):164-165,
https://doi.org/10.1080/09670262.2019.1626628 . .

TY  - CONF
AU  - Nikolic, Ljiljana
AU  - Korać Jačić, Jelena
AU  - Bijelic, Dunja
AU  - Spasojević, Ivan
AU  - Bogdanović Pristov, Jelena
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/2020
AB  - Iron, an essential element for living organisms, participates in a wide range of metabolic processes. It appears predominantly firmly bound to proteins, but can also be loosely bound to low-affinity ligands, referred as labile iron pool (LIP). The composition and amount of LIP can vary considerably under different physiological conditions, playing a beneficial role in iron economy and homeostasis or contributing to the generation of reactive oxygen species. It is still not known if bioactivity of low-affinity ligands can be modulated by iron binding. Catecholamine neurotransmitters including norepinephrine (NE) can chelate iron. In the close vicinity of synaptic cleft, astrocytes are direct target of norepinephrine. Here we show on cultured rat cortical astrocytes that iron bound to NE completely blocks neurotransmitter activity of NE. However, how astrocyte activity changes when norepinephrine binds iron remains unknown. We show, using spectrophotometry that NE and Fe3+ form complex in the 1:1 stoichiometry, at pH 7.4. Iron effect on astrocyte response to NE was examined by the whole-cell patch-clamp technique. NE alone evokes changes in the membrane currents of astrocytes, but such effects were not observed for the NE- Fe3+ complex. Our results demonstrating that iron in the complex with norepinephrine inhibits alpha-adrenergic receptors and modulates astrocyte activity, imply a novel neuromodulatory role for LIP.
PB  - COST Action CA15133
C3  - Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland
T1  - Iron modulates norepinephrine effect on astrocytes
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_2020
ER  - 

@conference{
author = "Nikolic, Ljiljana and Korać Jačić, Jelena and Bijelic, Dunja and Spasojević, Ivan and Bogdanović Pristov, Jelena",
year = "2019",
abstract = "Iron, an essential element for living organisms, participates in a wide range of metabolic processes. It appears predominantly firmly bound to proteins, but can also be loosely bound to low-affinity ligands, referred as labile iron pool (LIP). The composition and amount of LIP can vary considerably under different physiological conditions, playing a beneficial role in iron economy and homeostasis or contributing to the generation of reactive oxygen species. It is still not known if bioactivity of low-affinity ligands can be modulated by iron binding. Catecholamine neurotransmitters including norepinephrine (NE) can chelate iron. In the close vicinity of synaptic cleft, astrocytes are direct target of norepinephrine. Here we show on cultured rat cortical astrocytes that iron bound to NE completely blocks neurotransmitter activity of NE. However, how astrocyte activity changes when norepinephrine binds iron remains unknown. We show, using spectrophotometry that NE and Fe3+ form complex in the 1:1 stoichiometry, at pH 7.4. Iron effect on astrocyte response to NE was examined by the whole-cell patch-clamp technique. NE alone evokes changes in the membrane currents of astrocytes, but such effects were not observed for the NE- Fe3+ complex. Our results demonstrating that iron in the complex with norepinephrine inhibits alpha-adrenergic receptors and modulates astrocyte activity, imply a novel neuromodulatory role for LIP.",
publisher = "COST Action CA15133",
journal = "Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland",
title = "Iron modulates norepinephrine effect on astrocytes",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_2020"
}

Nikolic, L., Korać Jačić, J., Bijelic, D., Spasojević, I.,& Bogdanović Pristov, J.. (2019). Iron modulates norepinephrine effect on astrocytes. in Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland
COST Action CA15133..
https://hdl.handle.net/21.15107/rcub_rimsi_2020

Nikolic L, Korać Jačić J, Bijelic D, Spasojević I, Bogdanović Pristov J. Iron modulates norepinephrine effect on astrocytes. in Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland. 2019;.
https://hdl.handle.net/21.15107/rcub_rimsi_2020 .

Nikolic, Ljiljana, Korać Jačić, Jelena, Bijelic, Dunja, Spasojević, Ivan, Bogdanović Pristov, Jelena, "Iron modulates norepinephrine effect on astrocytes" in Book of abstracts: 4th FeSBioNet Meeting: COST Action CA15133; 2019 Sep 16-19; Gdansk, Poland (2019),
https://hdl.handle.net/21.15107/rcub_rimsi_2020 .

TY  - JOUR
AU  - Dimitrijević, Milena
AU  - Bogdanović Pristov, Jelena
AU  - Žižić, Milan
AU  - Stanković, Dalibor M.
AU  - Bajuk-Bogdanović, Danica
AU  - Stanić, Marina
AU  - Spasic, Snežana
AU  - Hagen, Wilfred
AU  - Spasojević, Ivan
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1246
AB  - Biliverdin (BV), a product of heme catabolism, is known to interact with transition metals, but the details of such interactions under physiological conditions are scarce. Herein, we examined coordinate/redox interactions of BV with Cu2+ in phosphate buffer at pH 7.4, using spectrophotometry, HESI-MS, Raman spectroscopy, H-1 NMR, EPR, fluorimetry, and electrochemical methods. BV formed a stable coordination complex with copper in 1:1 stoichiometry. The structure of BV was more planar and energetically stable in the complex. The complex showed strong paramagnetic effects that were attributed to an unpaired delocalized e(-). The delocalized electron may come from BV or Cu2+, so the complex is formally composed either of BV radical cation and Cu1+ or of BV radical anion and Cu3+. The complex underwent oxidation only in the presence of both O-2 and an excess of Cu2+, or a strong oxidizing agent, and it was resistant to reducing agents. The biological effects of the stable BV metallocomplex containing a delocalized unpaired electron should be further examined, and may provide an answer to the long-standing question of high energy investment in the catabolism of BV, which represents a relatively harmless molecule per se.
PB  - Royal Soc Chemistry, Cambridge
T2  - Dalton Transactions
T1  - Biliverdin-copper complex at physiological pH
EP  - 6070
IS  - 18
SP  - 6061
VL  - 48
DO  - 10.1039/c8dt04724c
ER  - 

@article{
author = "Dimitrijević, Milena and Bogdanović Pristov, Jelena and Žižić, Milan and Stanković, Dalibor M. and Bajuk-Bogdanović, Danica and Stanić, Marina and Spasic, Snežana and Hagen, Wilfred and Spasojević, Ivan",
year = "2019",
abstract = "Biliverdin (BV), a product of heme catabolism, is known to interact with transition metals, but the details of such interactions under physiological conditions are scarce. Herein, we examined coordinate/redox interactions of BV with Cu2+ in phosphate buffer at pH 7.4, using spectrophotometry, HESI-MS, Raman spectroscopy, H-1 NMR, EPR, fluorimetry, and electrochemical methods. BV formed a stable coordination complex with copper in 1:1 stoichiometry. The structure of BV was more planar and energetically stable in the complex. The complex showed strong paramagnetic effects that were attributed to an unpaired delocalized e(-). The delocalized electron may come from BV or Cu2+, so the complex is formally composed either of BV radical cation and Cu1+ or of BV radical anion and Cu3+. The complex underwent oxidation only in the presence of both O-2 and an excess of Cu2+, or a strong oxidizing agent, and it was resistant to reducing agents. The biological effects of the stable BV metallocomplex containing a delocalized unpaired electron should be further examined, and may provide an answer to the long-standing question of high energy investment in the catabolism of BV, which represents a relatively harmless molecule per se.",
publisher = "Royal Soc Chemistry, Cambridge",
journal = "Dalton Transactions",
title = "Biliverdin-copper complex at physiological pH",
pages = "6070-6061",
number = "18",
volume = "48",
doi = "10.1039/c8dt04724c"
}

Dimitrijević, M., Bogdanović Pristov, J., Žižić, M., Stanković, D. M., Bajuk-Bogdanović, D., Stanić, M., Spasic, S., Hagen, W.,& Spasojević, I.. (2019). Biliverdin-copper complex at physiological pH. in Dalton Transactions
Royal Soc Chemistry, Cambridge., 48(18), 6061-6070.
https://doi.org/10.1039/c8dt04724c

Dimitrijević M, Bogdanović Pristov J, Žižić M, Stanković DM, Bajuk-Bogdanović D, Stanić M, Spasic S, Hagen W, Spasojević I. Biliverdin-copper complex at physiological pH. in Dalton Transactions. 2019;48(18):6061-6070.
doi:10.1039/c8dt04724c .

Dimitrijević, Milena, Bogdanović Pristov, Jelena, Žižić, Milan, Stanković, Dalibor M., Bajuk-Bogdanović, Danica, Stanić, Marina, Spasic, Snežana, Hagen, Wilfred, Spasojević, Ivan, "Biliverdin-copper complex at physiological pH" in Dalton Transactions, 48, no. 18 (2019):6061-6070,
https://doi.org/10.1039/c8dt04724c . .