Jakimov, Dimitar

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orcid::0000-0002-1747-4718
  • Jakimov, Dimitar (4)
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Author's Bibliography

Raspberry seeds extract selectively inhibits the growth of human lung cancer cells in vitro

Simonović, Mladen; Kojić, Vesna; Jakimov, Dimitar; Glumac, Miodrag; Pejin, Boris

(Taylor & Francis Ltd, Abingdon, 2021)

TY  - JOUR
AU  - Simonović, Mladen
AU  - Kojić, Vesna
AU  - Jakimov, Dimitar
AU  - Glumac, Miodrag
AU  - Pejin, Boris
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1513
AB  - This study was focused on in vitro cytotoxicity screening of the raspberry seeds methanol extract towards a number of cancer cell lines of human origin. The tested extract at the preferred concentrations (IC50  lt 30 mu g/mL) inhibited only the growth of the lung cancer A-549 cells (IC50 = 14.07 +/- 0.96 mu g/mL). At the same time, it was practically inactive (IC50 >300 mu g/mL) and non-mutagenic towards normal MRC-5 lung cells. Finally, the extract potently scavenged both OH center dot (IC50 = 20.11 +/- 1.77 mu g/mL) and O2-center dot (IC50 = 47.23 +/- 3.82 mu g/mL), the free radicals of proved relevance for cancer pathophysiology. Though seeds were enriched with phenolic compounds (TPC = 5.21 +/- 0.07 mg GAE/g), anthocyanins were present in traces only (TAC = 0.07 +/- 0.003 mg cyn-3-glu/g), while flavonoids were not detected at all. This is the first report on anti-lung cancer potential of the seeds of any soft fruit.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Natural Product Research
T1  - Raspberry seeds extract selectively inhibits the growth of human lung cancer cells in vitro
EP  - 2256
IS  - 13
SP  - 2253
VL  - 35
DO  - 10.1080/14786419.2019.1666391
ER  - 
@article{
author = "Simonović, Mladen and Kojić, Vesna and Jakimov, Dimitar and Glumac, Miodrag and Pejin, Boris",
year = "2021",
abstract = "This study was focused on in vitro cytotoxicity screening of the raspberry seeds methanol extract towards a number of cancer cell lines of human origin. The tested extract at the preferred concentrations (IC50  lt 30 mu g/mL) inhibited only the growth of the lung cancer A-549 cells (IC50 = 14.07 +/- 0.96 mu g/mL). At the same time, it was practically inactive (IC50 >300 mu g/mL) and non-mutagenic towards normal MRC-5 lung cells. Finally, the extract potently scavenged both OH center dot (IC50 = 20.11 +/- 1.77 mu g/mL) and O2-center dot (IC50 = 47.23 +/- 3.82 mu g/mL), the free radicals of proved relevance for cancer pathophysiology. Though seeds were enriched with phenolic compounds (TPC = 5.21 +/- 0.07 mg GAE/g), anthocyanins were present in traces only (TAC = 0.07 +/- 0.003 mg cyn-3-glu/g), while flavonoids were not detected at all. This is the first report on anti-lung cancer potential of the seeds of any soft fruit.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Natural Product Research",
title = "Raspberry seeds extract selectively inhibits the growth of human lung cancer cells in vitro",
pages = "2256-2253",
number = "13",
volume = "35",
doi = "10.1080/14786419.2019.1666391"
}
Simonović, M., Kojić, V., Jakimov, D., Glumac, M.,& Pejin, B.. (2021). Raspberry seeds extract selectively inhibits the growth of human lung cancer cells in vitro. in Natural Product Research
Taylor & Francis Ltd, Abingdon., 35(13), 2253-2256.
https://doi.org/10.1080/14786419.2019.1666391
Simonović M, Kojić V, Jakimov D, Glumac M, Pejin B. Raspberry seeds extract selectively inhibits the growth of human lung cancer cells in vitro. in Natural Product Research. 2021;35(13):2253-2256.
doi:10.1080/14786419.2019.1666391 .
Simonović, Mladen, Kojić, Vesna, Jakimov, Dimitar, Glumac, Miodrag, Pejin, Boris, "Raspberry seeds extract selectively inhibits the growth of human lung cancer cells in vitro" in Natural Product Research, 35, no. 13 (2021):2253-2256,
https://doi.org/10.1080/14786419.2019.1666391 . .
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A neglected natural source for targeting glioblastoma

Pejin, Boris; Simonović, Mladen; Talevska, Aleksandra; Glumac, Miodrag; Jakimov, Dimitar; Kojić, Vesna

(Taylor & Francis Ltd, Abingdon, 2021)

TY  - JOUR
AU  - Pejin, Boris
AU  - Simonović, Mladen
AU  - Talevska, Aleksandra
AU  - Glumac, Miodrag
AU  - Jakimov, Dimitar
AU  - Kojić, Vesna
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1511
AB  - The cytotoxicity of the methanol extract of the freshwater sponge Ochridaspongia rotunda (Arndt, 1937) (Malawispongiidae) was evaluated by MTT assay at in vitro conditions against three brain tumour cell lines (Neuro-2A, U-251 MG and U-87 MG). The extract was actually found to be most effective against the malignant glioma U-251 MG cells reaching a promising IC50 value of 1.87 +/- 0.09 mu g/mL at 96 h. However, it exhibited only a bit of cytotoxicity (IC50 321.14 +/- 11.29 mu g/mL, 96 h) towards the normal cells. Also, this sponge extract was 5-fold more selective for U-251 MG versus U-87 MG cells. Finally, monitoring genotoxicity at chromosomal level using the micronucleus test practically revealed lack of any significant toxicity of O. rotunda extract, compared to doxorubicin. [GRAPHICS] .
PB  - Taylor & Francis Ltd, Abingdon
T2  - Natural Product Research
T1  - A neglected natural source for targeting glioblastoma
EP  - 1860
IS  - 11
SP  - 1856
VL  - 35
DO  - 10.1080/14786419.2019.1638386
ER  - 
@article{
author = "Pejin, Boris and Simonović, Mladen and Talevska, Aleksandra and Glumac, Miodrag and Jakimov, Dimitar and Kojić, Vesna",
year = "2021",
abstract = "The cytotoxicity of the methanol extract of the freshwater sponge Ochridaspongia rotunda (Arndt, 1937) (Malawispongiidae) was evaluated by MTT assay at in vitro conditions against three brain tumour cell lines (Neuro-2A, U-251 MG and U-87 MG). The extract was actually found to be most effective against the malignant glioma U-251 MG cells reaching a promising IC50 value of 1.87 +/- 0.09 mu g/mL at 96 h. However, it exhibited only a bit of cytotoxicity (IC50 321.14 +/- 11.29 mu g/mL, 96 h) towards the normal cells. Also, this sponge extract was 5-fold more selective for U-251 MG versus U-87 MG cells. Finally, monitoring genotoxicity at chromosomal level using the micronucleus test practically revealed lack of any significant toxicity of O. rotunda extract, compared to doxorubicin. [GRAPHICS] .",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Natural Product Research",
title = "A neglected natural source for targeting glioblastoma",
pages = "1860-1856",
number = "11",
volume = "35",
doi = "10.1080/14786419.2019.1638386"
}
Pejin, B., Simonović, M., Talevska, A., Glumac, M., Jakimov, D.,& Kojić, V.. (2021). A neglected natural source for targeting glioblastoma. in Natural Product Research
Taylor & Francis Ltd, Abingdon., 35(11), 1856-1860.
https://doi.org/10.1080/14786419.2019.1638386
Pejin B, Simonović M, Talevska A, Glumac M, Jakimov D, Kojić V. A neglected natural source for targeting glioblastoma. in Natural Product Research. 2021;35(11):1856-1860.
doi:10.1080/14786419.2019.1638386 .
Pejin, Boris, Simonović, Mladen, Talevska, Aleksandra, Glumac, Miodrag, Jakimov, Dimitar, Kojić, Vesna, "A neglected natural source for targeting glioblastoma" in Natural Product Research, 35, no. 11 (2021):1856-1860,
https://doi.org/10.1080/14786419.2019.1638386 . .
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The redox couple avarol/avarone in the fight with malignant gliomas: the case study of U-251 MG cells

Pejin, Boris; Tommonaro, Giuseppina; Glumac, Miodrag; Jakimov, Dimitar; Kojić, Vesna

(Taylor & Francis Ltd, Abingdon, 2018)

TY  - JOUR
AU  - Pejin, Boris
AU  - Tommonaro, Giuseppina
AU  - Glumac, Miodrag
AU  - Jakimov, Dimitar
AU  - Kojić, Vesna
PY  - 2018
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1194
AB  - This study aimed to screen in vitro antitumour activity of the redox couple avarol/avarone against the human malignant glioma cell line U-251 MG for the first time. Compared both with avarol and positive controls used (temozolomide and doxorubicin), avarone was found to be the most active compound with IC50 value below 1 mu M (IC50 0.68 +/- 0.04 mu M, 96 h). Considerable less DNA damage in the cells treated with avarol and avarone vs. doxorubicin (105 & 123% vs. 299%, respectively; untreated U-251 MG cells were used as a control, 100%), coupled with no sign of cytotoxicity against the normal human foetal lung fibroblast MRC-5 cells (IC50 > 100 mu M), has actually pointed out the importance of this marine sesquiterpenoid quinone structure as a promising lead compound in development of novel brain chemotherapeutics. [GRAPHICS] .
PB  - Taylor & Francis Ltd, Abingdon
T2  - Natural Product Research
T1  - The redox couple avarol/avarone in the fight with malignant gliomas: the case study of U-251 MG cells
EP  - 620
IS  - 5
SP  - 616
VL  - 32
DO  - 10.1080/14786419.2017.1327959
ER  - 
@article{
author = "Pejin, Boris and Tommonaro, Giuseppina and Glumac, Miodrag and Jakimov, Dimitar and Kojić, Vesna",
year = "2018",
abstract = "This study aimed to screen in vitro antitumour activity of the redox couple avarol/avarone against the human malignant glioma cell line U-251 MG for the first time. Compared both with avarol and positive controls used (temozolomide and doxorubicin), avarone was found to be the most active compound with IC50 value below 1 mu M (IC50 0.68 +/- 0.04 mu M, 96 h). Considerable less DNA damage in the cells treated with avarol and avarone vs. doxorubicin (105 & 123% vs. 299%, respectively; untreated U-251 MG cells were used as a control, 100%), coupled with no sign of cytotoxicity against the normal human foetal lung fibroblast MRC-5 cells (IC50 > 100 mu M), has actually pointed out the importance of this marine sesquiterpenoid quinone structure as a promising lead compound in development of novel brain chemotherapeutics. [GRAPHICS] .",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Natural Product Research",
title = "The redox couple avarol/avarone in the fight with malignant gliomas: the case study of U-251 MG cells",
pages = "620-616",
number = "5",
volume = "32",
doi = "10.1080/14786419.2017.1327959"
}
Pejin, B., Tommonaro, G., Glumac, M., Jakimov, D.,& Kojić, V.. (2018). The redox couple avarol/avarone in the fight with malignant gliomas: the case study of U-251 MG cells. in Natural Product Research
Taylor & Francis Ltd, Abingdon., 32(5), 616-620.
https://doi.org/10.1080/14786419.2017.1327959
Pejin B, Tommonaro G, Glumac M, Jakimov D, Kojić V. The redox couple avarol/avarone in the fight with malignant gliomas: the case study of U-251 MG cells. in Natural Product Research. 2018;32(5):616-620.
doi:10.1080/14786419.2017.1327959 .
Pejin, Boris, Tommonaro, Giuseppina, Glumac, Miodrag, Jakimov, Dimitar, Kojić, Vesna, "The redox couple avarol/avarone in the fight with malignant gliomas: the case study of U-251 MG cells" in Natural Product Research, 32, no. 5 (2018):616-620,
https://doi.org/10.1080/14786419.2017.1327959 . .
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In vitro evaluation of cytotoxic and mutagenic activity of avarol

Pejin, Boris; Iodice, Carmine; Kojić, Vesna; Jakimov, Dimitar; Lazović, Milica; Tommonaro, Giuseppina

(Taylor & Francis Ltd, Abingdon, 2016)

TY  - JOUR
AU  - Pejin, Boris
AU  - Iodice, Carmine
AU  - Kojić, Vesna
AU  - Jakimov, Dimitar
AU  - Lazović, Milica
AU  - Tommonaro, Giuseppina
PY  - 2016
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/953
AB  - The cytotoxicity of avarol, a main secondary metabolite of the Mediterranean sponge Dysidea avara, was in vitro screened by MTT assay against four human tumour cell lines. The colon HT-29 tumour cells practically showed to be the only sensitive ones towards this organic compound. No toxicity was found against the fetal lung fibroblast MRC-5 cells at the concentrations tested. In comparison with doxorubicin, used as a positive control, avarol actually exhibited at least 588-fold less toxicity towards normal MRC-5 cells. Finally, comet assay indicated that DNA fragmentation was almost fivefold higher upon the treatment with doxorubicin, compared to avarol. The obtained results have actually confirmed that avarol scaffold may contribute to development of new cytostatics inspired by nature.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Natural Product Research
T1  - In vitro evaluation of cytotoxic and mutagenic activity of avarol
EP  - 1296
IS  - 11
SP  - 1293
VL  - 30
DO  - 10.1080/14786419.2015.1052067
ER  - 
@article{
author = "Pejin, Boris and Iodice, Carmine and Kojić, Vesna and Jakimov, Dimitar and Lazović, Milica and Tommonaro, Giuseppina",
year = "2016",
abstract = "The cytotoxicity of avarol, a main secondary metabolite of the Mediterranean sponge Dysidea avara, was in vitro screened by MTT assay against four human tumour cell lines. The colon HT-29 tumour cells practically showed to be the only sensitive ones towards this organic compound. No toxicity was found against the fetal lung fibroblast MRC-5 cells at the concentrations tested. In comparison with doxorubicin, used as a positive control, avarol actually exhibited at least 588-fold less toxicity towards normal MRC-5 cells. Finally, comet assay indicated that DNA fragmentation was almost fivefold higher upon the treatment with doxorubicin, compared to avarol. The obtained results have actually confirmed that avarol scaffold may contribute to development of new cytostatics inspired by nature.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Natural Product Research",
title = "In vitro evaluation of cytotoxic and mutagenic activity of avarol",
pages = "1296-1293",
number = "11",
volume = "30",
doi = "10.1080/14786419.2015.1052067"
}
Pejin, B., Iodice, C., Kojić, V., Jakimov, D., Lazović, M.,& Tommonaro, G.. (2016). In vitro evaluation of cytotoxic and mutagenic activity of avarol. in Natural Product Research
Taylor & Francis Ltd, Abingdon., 30(11), 1293-1296.
https://doi.org/10.1080/14786419.2015.1052067
Pejin B, Iodice C, Kojić V, Jakimov D, Lazović M, Tommonaro G. In vitro evaluation of cytotoxic and mutagenic activity of avarol. in Natural Product Research. 2016;30(11):1293-1296.
doi:10.1080/14786419.2015.1052067 .
Pejin, Boris, Iodice, Carmine, Kojić, Vesna, Jakimov, Dimitar, Lazović, Milica, Tommonaro, Giuseppina, "In vitro evaluation of cytotoxic and mutagenic activity of avarol" in Natural Product Research, 30, no. 11 (2016):1293-1296,
https://doi.org/10.1080/14786419.2015.1052067 . .
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