TY  - JOUR
AU  - Topalović, Dijana
AU  - Živković, Lada
AU  - Đelić, Ninoslav
AU  - Bajić, Vladan P.
AU  - Spremo-Potparević, Biljana
PY  - 2020
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/9810
AB  - Objective. Inosine 5'-monophosphate dehydrogenase (IMPDH) activity in cancer cells is increased. Tiazofurin selectively inhibits the activity of IMPDH, and it has been granted for the treatment of different cancers and new viral diseases. Its widespread use was limited because exposure to tiazofurin under certain circumstances was found to have a higher frequency of severe non-hematologic toxicity. Therefore, the objective of this study was to examine genotoxic action and inducement of DNA damage of tiazofurin using the comet assay. Methods. The ability of tiazofurin to induce DNA damage was evaluated using single-cell gel electrophoresis (SCGE) technique/comet assay. Human whole blood cells were exposed to three final concentrations of tiazofurin (1µM/mL, 2 µM/mL, and 5 µM/mL) for 30 min in vitro. Results. Our results indicate that tiazofurin produced a significant level of DNA damage on whole blood cells after 30 min of exposure vs. control. All tested concentrations were significantly comet-forming, in a concentration-dependent manner. Conclusion. Our investigation on the tiazofurin-treated cells and their relationship to the formation of DNA damage demonstrated that the genotoxic effect was induced after exposure to tiazofurin under described conditions.
AB  - Cilj. Aktivnost inozin 5’-monofosfat dehidrogenaze(IMPDH) povećana je u ćelijama karcinoma. Tiazofurin selektivno inhibira aktivnost IMPDH i odobren je za lečenje različitih karcinoma i novih virusnih bolesti. Njegova široko rasprostranjena upotreba bila je ograničena jer je utvrđenoda je izloženost tiazofurinu pod određenim okolnostima imala veću incidencu ozbiljne nehematološke toksičnosti. Stoga je cilj ove studije bio da se pomoću komet testa ispita genotoksično delovanje i izazivanje DNK oštećenja tiazofurinom. Metode. Sposobnost tiazofurina da izazove DNK oštećenje procenjena je primenom elektroforeze DNK pojedinačnih ćelija (SCGE) / komet testa. Ćelije pune krvi su bile izložene trima konačnim koncentracijama tiazofurina (1µM/mL, 2 µM/mL, and 5 µM/mL) tokom 30 minuta in vitro. Rezultati. Naši rezultati ukazuju na to da je tiazofurin proizveo značajan nivo DNK oštećenja na ćelijama pune krvi nakon 30 minuta izlaganja u odnosu na kontrolu. Sve ispitivane koncentracije su dovele do značajnog nastanka kometa, pri čemu je nivo oštećenja rastao s koncentracijom. Zaključak. Naše istraživanje ćelija tretiranih tiazofurinom i njihova reakcija na izazivanje DNK oštećenja pokazalo je da je tiazofurin ispoljio genotoksični efekat pod opisanim uslovima.
T2  - Medicinski časopis
T1  - Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay
T1  - Analiza dnk oštećenja izazvanog tiazofurinom u humanim ćelijama pune krvi primenom in vitro komet testa
VL  - 54
IS  - 3
SP  - 91
EP  - 95
DO  - 10.5937/mckg54-28798
ER  - 

@article{
author = "Topalović, Dijana and Živković, Lada and Đelić, Ninoslav and Bajić, Vladan P. and Spremo-Potparević, Biljana",
year = "2020",
abstract = "Objective. Inosine 5'-monophosphate dehydrogenase (IMPDH) activity in cancer cells is increased. Tiazofurin selectively inhibits the activity of IMPDH, and it has been granted for the treatment of different cancers and new viral diseases. Its widespread use was limited because exposure to tiazofurin under certain circumstances was found to have a higher frequency of severe non-hematologic toxicity. Therefore, the objective of this study was to examine genotoxic action and inducement of DNA damage of tiazofurin using the comet assay. Methods. The ability of tiazofurin to induce DNA damage was evaluated using single-cell gel electrophoresis (SCGE) technique/comet assay. Human whole blood cells were exposed to three final concentrations of tiazofurin (1µM/mL, 2 µM/mL, and 5 µM/mL) for 30 min in vitro. Results. Our results indicate that tiazofurin produced a significant level of DNA damage on whole blood cells after 30 min of exposure vs. control. All tested concentrations were significantly comet-forming, in a concentration-dependent manner. Conclusion. Our investigation on the tiazofurin-treated cells and their relationship to the formation of DNA damage demonstrated that the genotoxic effect was induced after exposure to tiazofurin under described conditions., Cilj. Aktivnost inozin 5’-monofosfat dehidrogenaze(IMPDH) povećana je u ćelijama karcinoma. Tiazofurin selektivno inhibira aktivnost IMPDH i odobren je za lečenje različitih karcinoma i novih virusnih bolesti. Njegova široko rasprostranjena upotreba bila je ograničena jer je utvrđenoda je izloženost tiazofurinu pod određenim okolnostima imala veću incidencu ozbiljne nehematološke toksičnosti. Stoga je cilj ove studije bio da se pomoću komet testa ispita genotoksično delovanje i izazivanje DNK oštećenja tiazofurinom. Metode. Sposobnost tiazofurina da izazove DNK oštećenje procenjena je primenom elektroforeze DNK pojedinačnih ćelija (SCGE) / komet testa. Ćelije pune krvi su bile izložene trima konačnim koncentracijama tiazofurina (1µM/mL, 2 µM/mL, and 5 µM/mL) tokom 30 minuta in vitro. Rezultati. Naši rezultati ukazuju na to da je tiazofurin proizveo značajan nivo DNK oštećenja na ćelijama pune krvi nakon 30 minuta izlaganja u odnosu na kontrolu. Sve ispitivane koncentracije su dovele do značajnog nastanka kometa, pri čemu je nivo oštećenja rastao s koncentracijom. Zaključak. Naše istraživanje ćelija tretiranih tiazofurinom i njihova reakcija na izazivanje DNK oštećenja pokazalo je da je tiazofurin ispoljio genotoksični efekat pod opisanim uslovima.",
journal = "Medicinski časopis",
title = "Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay, Analiza dnk oštećenja izazvanog tiazofurinom u humanim ćelijama pune krvi primenom in vitro komet testa",
volume = "54",
number = "3",
pages = "91-95",
doi = "10.5937/mckg54-28798"
}

Topalović, D., Živković, L., Đelić, N., Bajić, V. P.,& Spremo-Potparević, B.. (2020). Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay. in Medicinski časopis, 54(3), 91-95.
https://doi.org/10.5937/mckg54-28798

Topalović D, Živković L, Đelić N, Bajić VP, Spremo-Potparević B. Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay. in Medicinski časopis. 2020;54(3):91-95.
doi:10.5937/mckg54-28798 .

Topalović, Dijana, Živković, Lada, Đelić, Ninoslav, Bajić, Vladan P., Spremo-Potparević, Biljana, "Analysis of tiazofurin-induced DNA damage in human whole blood cells using an in vitro comet assay" in Medicinski časopis, 54, no. 3 (2020):91-95,
https://doi.org/10.5937/mckg54-28798 . .

TY  - JOUR
AU  - Živković, Lada
AU  - Bajić, Vladan P.
AU  - Dekanski, Dragana
AU  - Čabarkapa-Pirković, Andrea
AU  - Giampieri, Francesca
AU  - Gasparrini, Massimiliano
AU  - Mazzoni, Luca
AU  - Spremo-Potparević, Biljana
PY  - 2018
UR  - https://linkinghub.elsevier.com/retrieve/pii/S027869151830334X
UR  - https://vinar.vin.bg.ac.rs/handle/123456789/7819
AB  - Manuka honey has been widely researched regarding its biological properties, in particular its antimicrobial and antioxidant capacities. We tested the genotoxic and genoprotective properties of Manuka honey, ranging from 25–1000 μg/mL, by performing an in vitro comet assay after exposure to human whole blood. No genotoxic effect on whole blood cells was observed within the tested concentration range (p = 0.154). Then, the antigenotoxic potency of Manuka honey against oxidative DNA damage to whole blood cells was assessed. Prior to Manuka honey treatment a modest decrease of H2O2-induced DNA damage was detected in cells, with no statistical significance (p = 0.087). Post-treatment, Manuka honey displayed a stronger potential to attenuate damaged cells at all tested concentrations, with a statistical significant difference (p < 0.001), where concentrations of 25 and 100 μg/mL were most efficient. Manuka honey exhibited a marked potential to protect DNA of whole blood cells from oxidative damage induced by hydrogen peroxide in vitro.
T2  - Food and Chemical Toxicology
T1  - Manuka honey attenuates oxidative damage induced by H2O2 in human whole blood in vitro
VL  - 119
SP  - 61
EP  - 65
DO  - 10.1016/j.fct.2018.05.034
ER  - 

@article{
author = "Živković, Lada and Bajić, Vladan P. and Dekanski, Dragana and Čabarkapa-Pirković, Andrea and Giampieri, Francesca and Gasparrini, Massimiliano and Mazzoni, Luca and Spremo-Potparević, Biljana",
year = "2018",
abstract = "Manuka honey has been widely researched regarding its biological properties, in particular its antimicrobial and antioxidant capacities. We tested the genotoxic and genoprotective properties of Manuka honey, ranging from 25–1000 μg/mL, by performing an in vitro comet assay after exposure to human whole blood. No genotoxic effect on whole blood cells was observed within the tested concentration range (p = 0.154). Then, the antigenotoxic potency of Manuka honey against oxidative DNA damage to whole blood cells was assessed. Prior to Manuka honey treatment a modest decrease of H2O2-induced DNA damage was detected in cells, with no statistical significance (p = 0.087). Post-treatment, Manuka honey displayed a stronger potential to attenuate damaged cells at all tested concentrations, with a statistical significant difference (p < 0.001), where concentrations of 25 and 100 μg/mL were most efficient. Manuka honey exhibited a marked potential to protect DNA of whole blood cells from oxidative damage induced by hydrogen peroxide in vitro.",
journal = "Food and Chemical Toxicology",
title = "Manuka honey attenuates oxidative damage induced by H2O2 in human whole blood in vitro",
volume = "119",
pages = "61-65",
doi = "10.1016/j.fct.2018.05.034"
}

Živković, L., Bajić, V. P., Dekanski, D., Čabarkapa-Pirković, A., Giampieri, F., Gasparrini, M., Mazzoni, L.,& Spremo-Potparević, B.. (2018). Manuka honey attenuates oxidative damage induced by H2O2 in human whole blood in vitro. in Food and Chemical Toxicology, 119, 61-65.
https://doi.org/10.1016/j.fct.2018.05.034

Živković L, Bajić VP, Dekanski D, Čabarkapa-Pirković A, Giampieri F, Gasparrini M, Mazzoni L, Spremo-Potparević B. Manuka honey attenuates oxidative damage induced by H2O2 in human whole blood in vitro. in Food and Chemical Toxicology. 2018;119:61-65.
doi:10.1016/j.fct.2018.05.034 .

Živković, Lada, Bajić, Vladan P., Dekanski, Dragana, Čabarkapa-Pirković, Andrea, Giampieri, Francesca, Gasparrini, Massimiliano, Mazzoni, Luca, Spremo-Potparević, Biljana, "Manuka honey attenuates oxidative damage induced by H2O2 in human whole blood in vitro" in Food and Chemical Toxicology, 119 (2018):61-65,
https://doi.org/10.1016/j.fct.2018.05.034 . .