TY  - JOUR
AU  - Đorđević Aleksić, Jelena
AU  - Kolarević, Stoimir
AU  - Jovanović, Jovana
AU  - Kostić-Vuković, Jovana
AU  - Novaković, Irena
AU  - Jeremic, Marko
AU  - Sladic, Dusan
AU  - Vukovic-Gacic, Branka
PY  - 2020
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1365
AB  - Tert-butylquinone (TBQ) and its alkylamino and aralkylamino derivatives are of high interest as a potential antitumor agent. Therefore, it was necessary to investigate if the compounds exert undesirable activities such as interaction with DNA molecule which could result in negative side effects in the case of their use in the diseases treatment. The major aim of this study was to investigate genotoxic potential of TBQ and selected derivatives in an acellular model by using plasmid DNA, in the prokaryotic model by the SOS/umuCassay inSalmonella typhimuriumTA1535/pSK1002 and in eukaryotic models by using comet assay in human fetal lung cell line (MRC-5) and human liver cancer cell line (HepG2). Results indicated that in the acellular model TBQ and its derivatives do not interact with plasmid pUC19. In the prokaryotic model, only TBQ exerted weak genotoxic potential and only at highly cytotoxic concentrations. In eukaryotic models, genotoxic potential was detected mainly at the highest concentrations of the tested substances but the effect was lower in both cell lines in comparison with benzo[a]pyrene and etoposide which were used as positive controls. Weak genotoxic potential of tested compounds recommends them as good candidates for further testing in development of new antitumor agents.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Drug and Chemical Toxicology
T1  - Evaluation of genotoxic potential oftert-butylquinone and its derivatives in prokaryotic and eukaryotic test models
EP  - 530
IS  - 5
SP  - 522
VL  - 43
DO  - 10.1080/01480545.2018.1514043
ER  - 

@article{
author = "Đorđević Aleksić, Jelena and Kolarević, Stoimir and Jovanović, Jovana and Kostić-Vuković, Jovana and Novaković, Irena and Jeremic, Marko and Sladic, Dusan and Vukovic-Gacic, Branka",
year = "2020",
abstract = "Tert-butylquinone (TBQ) and its alkylamino and aralkylamino derivatives are of high interest as a potential antitumor agent. Therefore, it was necessary to investigate if the compounds exert undesirable activities such as interaction with DNA molecule which could result in negative side effects in the case of their use in the diseases treatment. The major aim of this study was to investigate genotoxic potential of TBQ and selected derivatives in an acellular model by using plasmid DNA, in the prokaryotic model by the SOS/umuCassay inSalmonella typhimuriumTA1535/pSK1002 and in eukaryotic models by using comet assay in human fetal lung cell line (MRC-5) and human liver cancer cell line (HepG2). Results indicated that in the acellular model TBQ and its derivatives do not interact with plasmid pUC19. In the prokaryotic model, only TBQ exerted weak genotoxic potential and only at highly cytotoxic concentrations. In eukaryotic models, genotoxic potential was detected mainly at the highest concentrations of the tested substances but the effect was lower in both cell lines in comparison with benzo[a]pyrene and etoposide which were used as positive controls. Weak genotoxic potential of tested compounds recommends them as good candidates for further testing in development of new antitumor agents.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Drug and Chemical Toxicology",
title = "Evaluation of genotoxic potential oftert-butylquinone and its derivatives in prokaryotic and eukaryotic test models",
pages = "530-522",
number = "5",
volume = "43",
doi = "10.1080/01480545.2018.1514043"
}

Đorđević Aleksić, J., Kolarević, S., Jovanović, J., Kostić-Vuković, J., Novaković, I., Jeremic, M., Sladic, D.,& Vukovic-Gacic, B.. (2020). Evaluation of genotoxic potential oftert-butylquinone and its derivatives in prokaryotic and eukaryotic test models. in Drug and Chemical Toxicology
Taylor & Francis Ltd, Abingdon., 43(5), 522-530.
https://doi.org/10.1080/01480545.2018.1514043

Đorđević Aleksić J, Kolarević S, Jovanović J, Kostić-Vuković J, Novaković I, Jeremic M, Sladic D, Vukovic-Gacic B. Evaluation of genotoxic potential oftert-butylquinone and its derivatives in prokaryotic and eukaryotic test models. in Drug and Chemical Toxicology. 2020;43(5):522-530.
doi:10.1080/01480545.2018.1514043 .

Đorđević Aleksić, Jelena, Kolarević, Stoimir, Jovanović, Jovana, Kostić-Vuković, Jovana, Novaković, Irena, Jeremic, Marko, Sladic, Dusan, Vukovic-Gacic, Branka, "Evaluation of genotoxic potential oftert-butylquinone and its derivatives in prokaryotic and eukaryotic test models" in Drug and Chemical Toxicology, 43, no. 5 (2020):522-530,
https://doi.org/10.1080/01480545.2018.1514043 . .

TY  - JOUR
AU  - Kolarević, Stoimir
AU  - Milovanović, Dragana
AU  - Kracun-Kolarević, Margareta
AU  - Kostić-Vuković, Jovana
AU  - Sunjog, Karolina
AU  - Martinović, Rajko
AU  - Đorđević Aleksić, Jelena
AU  - Novaković, Irena
AU  - Sladic, Dusan
AU  - Vukovic-Gacic, Branka
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1274
AB  - In this study, mutagenic and genotoxic potential of anti-tumor compounds avarol, avarone, and its derivatives 3 '-methoxyavarone, 4 '-(methylamino)avarone and 3 '-(methylamino)avarone was evaluated and compared to cytostatics commonly used in chemotherapy (5-fluorouracil, etoposid, and cisplatin). Mutagenic potential of selected hydroquinone and quinones was assessed in prokaryotic model by the SOS/umuC assay in Salmonella typhimurium TA1535/pSK1002. Genotoxic potential was also assessed in eukaryotic models using comet assay in human fetal lung cell line (MRC-5), human adenocarcinoma epithelial cell line (A549), and in human peripheral blood cells (HPBC). The results indicated that avarol and avarone do not exert mutagenic/genotoxic potential. Among the studied avarone derivatives, mutagenic potential was detected by SOS/umuC test for 3 '-(methylamino)avarone, but only after metabolic activation. The results of comet assay indicated that 3 '-methoxyavarone and 3 '-(methylamino)avarone have a significant impact on the level of DNA damage in the MRC-5 cell line. Genotoxic potential was not observed in A549 cells or HPBC probably due to a different uptake rate for the compounds and lower in metabolism rate within these cells.
PB  - Taylor & Francis Ltd, Abingdon
T2  - Drug and Chemical Toxicology
T1  - Evaluation of genotoxic potential of avarol, avarone, and its methoxy and methylamino derivatives in prokaryotic and eukaryotic test models
EP  - 139
IS  - 2
SP  - 130
VL  - 42
DO  - 10.1080/01480545.2017.1413108
ER  - 

@article{
author = "Kolarević, Stoimir and Milovanović, Dragana and Kracun-Kolarević, Margareta and Kostić-Vuković, Jovana and Sunjog, Karolina and Martinović, Rajko and Đorđević Aleksić, Jelena and Novaković, Irena and Sladic, Dusan and Vukovic-Gacic, Branka",
year = "2019",
abstract = "In this study, mutagenic and genotoxic potential of anti-tumor compounds avarol, avarone, and its derivatives 3 '-methoxyavarone, 4 '-(methylamino)avarone and 3 '-(methylamino)avarone was evaluated and compared to cytostatics commonly used in chemotherapy (5-fluorouracil, etoposid, and cisplatin). Mutagenic potential of selected hydroquinone and quinones was assessed in prokaryotic model by the SOS/umuC assay in Salmonella typhimurium TA1535/pSK1002. Genotoxic potential was also assessed in eukaryotic models using comet assay in human fetal lung cell line (MRC-5), human adenocarcinoma epithelial cell line (A549), and in human peripheral blood cells (HPBC). The results indicated that avarol and avarone do not exert mutagenic/genotoxic potential. Among the studied avarone derivatives, mutagenic potential was detected by SOS/umuC test for 3 '-(methylamino)avarone, but only after metabolic activation. The results of comet assay indicated that 3 '-methoxyavarone and 3 '-(methylamino)avarone have a significant impact on the level of DNA damage in the MRC-5 cell line. Genotoxic potential was not observed in A549 cells or HPBC probably due to a different uptake rate for the compounds and lower in metabolism rate within these cells.",
publisher = "Taylor & Francis Ltd, Abingdon",
journal = "Drug and Chemical Toxicology",
title = "Evaluation of genotoxic potential of avarol, avarone, and its methoxy and methylamino derivatives in prokaryotic and eukaryotic test models",
pages = "139-130",
number = "2",
volume = "42",
doi = "10.1080/01480545.2017.1413108"
}

Kolarević, S., Milovanović, D., Kracun-Kolarević, M., Kostić-Vuković, J., Sunjog, K., Martinović, R., Đorđević Aleksić, J., Novaković, I., Sladic, D.,& Vukovic-Gacic, B.. (2019). Evaluation of genotoxic potential of avarol, avarone, and its methoxy and methylamino derivatives in prokaryotic and eukaryotic test models. in Drug and Chemical Toxicology
Taylor & Francis Ltd, Abingdon., 42(2), 130-139.
https://doi.org/10.1080/01480545.2017.1413108

Kolarević S, Milovanović D, Kracun-Kolarević M, Kostić-Vuković J, Sunjog K, Martinović R, Đorđević Aleksić J, Novaković I, Sladic D, Vukovic-Gacic B. Evaluation of genotoxic potential of avarol, avarone, and its methoxy and methylamino derivatives in prokaryotic and eukaryotic test models. in Drug and Chemical Toxicology. 2019;42(2):130-139.
doi:10.1080/01480545.2017.1413108 .

Kolarević, Stoimir, Milovanović, Dragana, Kracun-Kolarević, Margareta, Kostić-Vuković, Jovana, Sunjog, Karolina, Martinović, Rajko, Đorđević Aleksić, Jelena, Novaković, Irena, Sladic, Dusan, Vukovic-Gacic, Branka, "Evaluation of genotoxic potential of avarol, avarone, and its methoxy and methylamino derivatives in prokaryotic and eukaryotic test models" in Drug and Chemical Toxicology, 42, no. 2 (2019):130-139,
https://doi.org/10.1080/01480545.2017.1413108 . .

TY  - JOUR
AU  - Vujcic, Miroslava T
AU  - Tufegdžić, Srđan J.
AU  - Novaković, Irena T
AU  - Đikanović, Daniela
AU  - Gasic, Miroslav J
AU  - Sladic, Dusan
PY  - 2013
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/734
AB  - The interactions of avarone, a quinone from the marine sponge Dysideaavara, and the methylamino derivatives of avarone (2), 3'-(methylamino)avarone (3) and 4'-(methylamino)avarone (4) with calf thymus DNA (CT-DNA) were studied. Agarose gel electrophoreticanalysis showed that binding of the quinones quenched fluorescence of ethidium bromide (EB). The extent of fluorescence quenching of intercalator EB by competitive displacement from EB-CT-DNA system and of groove binder Hoechst 33258 (H) from H-CT-DNA system with the quinones was analyzed by fluorescence spectroscopy. The obtained results demonstrated that the quinones reduced binding of both the intercalator EB and the minor groove binder H, indicating possible degradation of DNA. The substituent on the quinone moiety determined the extent of DNA damaging effect of the quinone, which was the most extensive with 3'-(methylamino)avarone and the least extensive with its regioisomer 4'-(methylamino)avarone. The results were confirmed by the observed hyperchromic effects in UV-visible spectra measured after interactions of the derivatives with CT-DNA.
PB  - Elsevier, Amsterdam
T2  - International Journal of Biological Macromolecules
T1  - Studies on the interactions of bioactive quinone avarone and its methylamino derivatives with calf thymus DNA
EP  - 410
SP  - 405
VL  - 62
DO  - 10.1016/j.ijbiomac.2013.09.013
ER  - 

@article{
author = "Vujcic, Miroslava T and Tufegdžić, Srđan J. and Novaković, Irena T and Đikanović, Daniela and Gasic, Miroslav J and Sladic, Dusan",
year = "2013",
abstract = "The interactions of avarone, a quinone from the marine sponge Dysideaavara, and the methylamino derivatives of avarone (2), 3'-(methylamino)avarone (3) and 4'-(methylamino)avarone (4) with calf thymus DNA (CT-DNA) were studied. Agarose gel electrophoreticanalysis showed that binding of the quinones quenched fluorescence of ethidium bromide (EB). The extent of fluorescence quenching of intercalator EB by competitive displacement from EB-CT-DNA system and of groove binder Hoechst 33258 (H) from H-CT-DNA system with the quinones was analyzed by fluorescence spectroscopy. The obtained results demonstrated that the quinones reduced binding of both the intercalator EB and the minor groove binder H, indicating possible degradation of DNA. The substituent on the quinone moiety determined the extent of DNA damaging effect of the quinone, which was the most extensive with 3'-(methylamino)avarone and the least extensive with its regioisomer 4'-(methylamino)avarone. The results were confirmed by the observed hyperchromic effects in UV-visible spectra measured after interactions of the derivatives with CT-DNA.",
publisher = "Elsevier, Amsterdam",
journal = "International Journal of Biological Macromolecules",
title = "Studies on the interactions of bioactive quinone avarone and its methylamino derivatives with calf thymus DNA",
pages = "410-405",
volume = "62",
doi = "10.1016/j.ijbiomac.2013.09.013"
}

Vujcic, M. T., Tufegdžić, S. J., Novaković, I. T., Đikanović, D., Gasic, M. J.,& Sladic, D.. (2013). Studies on the interactions of bioactive quinone avarone and its methylamino derivatives with calf thymus DNA. in International Journal of Biological Macromolecules
Elsevier, Amsterdam., 62, 405-410.
https://doi.org/10.1016/j.ijbiomac.2013.09.013

Vujcic MT, Tufegdžić SJ, Novaković IT, Đikanović D, Gasic MJ, Sladic D. Studies on the interactions of bioactive quinone avarone and its methylamino derivatives with calf thymus DNA. in International Journal of Biological Macromolecules. 2013;62:405-410.
doi:10.1016/j.ijbiomac.2013.09.013 .

Vujcic, Miroslava T, Tufegdžić, Srđan J., Novaković, Irena T, Đikanović, Daniela, Gasic, Miroslav J, Sladic, Dusan, "Studies on the interactions of bioactive quinone avarone and its methylamino derivatives with calf thymus DNA" in International Journal of Biological Macromolecules, 62 (2013):405-410,
https://doi.org/10.1016/j.ijbiomac.2013.09.013 . .

TY  - JOUR
AU  - Radotić, Ksenija
AU  - Zakrzewska, Joanna
AU  - Sladic, Dusan
AU  - Jeremic, M.
PY  - 1997
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/36
AB  - Ultraviolet light-induced photochemical transformations of coniferyl alcohol have been studied, using spectrophotometric and H-1 NMR approaches. It was shown earlier that coniferyl alcohol can be polymerized not only enzymically but also by photoirradiation, This study furthers our knowledge on the UV radiation-induced polymerization of coniferyl alcohol. In the photochemical reaction of coniferyl alcohol, quinone-methide is the first transient formed. In subsequent reactions quinone-methide produces dimers, oligomers and a polymer as the end product. The reaction rate constants are pH dependent. The results are interpreted in terms of an ionic mechanism of the photochemical reaction, contrary to enzymic polymerization that involves formation of phenoxy radicals. The study may have ecological importance because of the increase of UV radiation reaching the earth's surface due to ozone layer depletion.
PB  - Blackwell Publishing Inc.
T2  - Photochemistry and Photobiology
T1  - Study of photochemical reactions of coniferyl alcohol .1. Mechanism and intermediate products of UV radiation-induced polymerization of coniferyl alcohol
EP  - 291
IS  - 2
SP  - 284
VL  - 65
UR  - https://hdl.handle.net/21.15107/rcub_cherry_2586
ER  - 

@article{
author = "Radotić, Ksenija and Zakrzewska, Joanna and Sladic, Dusan and Jeremic, M.",
year = "1997",
abstract = "Ultraviolet light-induced photochemical transformations of coniferyl alcohol have been studied, using spectrophotometric and H-1 NMR approaches. It was shown earlier that coniferyl alcohol can be polymerized not only enzymically but also by photoirradiation, This study furthers our knowledge on the UV radiation-induced polymerization of coniferyl alcohol. In the photochemical reaction of coniferyl alcohol, quinone-methide is the first transient formed. In subsequent reactions quinone-methide produces dimers, oligomers and a polymer as the end product. The reaction rate constants are pH dependent. The results are interpreted in terms of an ionic mechanism of the photochemical reaction, contrary to enzymic polymerization that involves formation of phenoxy radicals. The study may have ecological importance because of the increase of UV radiation reaching the earth's surface due to ozone layer depletion.",
publisher = "Blackwell Publishing Inc.",
journal = "Photochemistry and Photobiology",
title = "Study of photochemical reactions of coniferyl alcohol .1. Mechanism and intermediate products of UV radiation-induced polymerization of coniferyl alcohol",
pages = "291-284",
number = "2",
volume = "65",
url = "https://hdl.handle.net/21.15107/rcub_cherry_2586"
}

Radotić, K., Zakrzewska, J., Sladic, D.,& Jeremic, M.. (1997). Study of photochemical reactions of coniferyl alcohol .1. Mechanism and intermediate products of UV radiation-induced polymerization of coniferyl alcohol. in Photochemistry and Photobiology
Blackwell Publishing Inc.., 65(2), 284-291.
https://hdl.handle.net/21.15107/rcub_cherry_2586

Radotić K, Zakrzewska J, Sladic D, Jeremic M. Study of photochemical reactions of coniferyl alcohol .1. Mechanism and intermediate products of UV radiation-induced polymerization of coniferyl alcohol. in Photochemistry and Photobiology. 1997;65(2):284-291.
https://hdl.handle.net/21.15107/rcub_cherry_2586 .

Radotić, Ksenija, Zakrzewska, Joanna, Sladic, Dusan, Jeremic, M., "Study of photochemical reactions of coniferyl alcohol .1. Mechanism and intermediate products of UV radiation-induced polymerization of coniferyl alcohol" in Photochemistry and Photobiology, 65, no. 2 (1997):284-291,
https://hdl.handle.net/21.15107/rcub_cherry_2586 .