Abstract |
Testicular cancer is a very common cancer in males aged 15-44 years. Bleomycin is used in chemotherapy regimens in the treatment of patients having testicular germ-cell tumor. Bleomycin generates oxygen radicals, induces oxidative cleavage of DNA strand and induces apoptosis in cancer cells. There is no study in the literature investigating effects of N-Acetyl-L-Cysteine (NAC) on bleomycin-induced oxidative stress in testicular germ cell tumors. For this reason, we studied effects of NAC on oxidative stress produced in wild-type NTera-2 and p53-mutant NCCIT testis cancer cells incubated with bleomycin and compared the results with H(2)O(2) which directly produces oxidative stress. We determined protein carbonyl content, thiobarbituric acid reactive substances ( TBARS), glutathione (GSH), 8-isoprostane, lipid hydroperoxide levels and total antioxidant capacity in both testicular cancer cells. Bleomycin and H(2)O(2) significantly increased 8-isoprostane, TBARS, protein carbonyl and lipid hydroperoxide levels in NTera-2 and NCCIT cells. Bleomycin and H(2)O(2) significantly decreased antioxidant capacity and GSH levels in both cell lines. Co-incubation with NAC significantly decreased lipid hydroperoxide, 8-isoprostane, protein carbonyl content and TBARS levels increased by bleomycin and H(2)O(2). NAC enhanced GSH levels and antioxidant capacity in the NTera-2 and NCCIT cells. It can be concluded that NAC diminishes oxidative stress in human testicular cancer cells induced by bleomycin and H(2)O(2).
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Authors | Aysegul Cort, Evrim Ozdemir, Mujgan Timur, Tomris Ozben |
Journal | Biochimie
(Biochimie)
Vol. 94
Issue 12
Pg. 2734-9
(Dec 2012)
ISSN: 1638-6183 [Electronic] France |
PMID | 22940535
(Publication Type: Journal Article, Research Support, Non-U.S. Gov't)
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Copyright | Copyright © 2012 Elsevier Masson SAS. All rights reserved. |
Chemical References |
- Antioxidants
- Free Radical Scavengers
- Lipid Peroxides
- Oxidants
- Thiobarbituric Acid Reactive Substances
- Bleomycin
- 8-epi-prostaglandin F2alpha
- Dinoprost
- Hydrogen Peroxide
- Glutathione
- Acetylcysteine
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Topics |
- Acetylcysteine
(pharmacology)
- Antioxidants
(metabolism)
- Bleomycin
(pharmacology)
- Cell Line, Tumor
- Dinoprost
(analogs & derivatives, metabolism)
- Free Radical Scavengers
(pharmacology)
- Glutathione
(metabolism)
- Humans
- Hydrogen Peroxide
(pharmacology)
- Lipid Peroxides
(metabolism)
- Male
- Mutation
- Neoplasms, Germ Cell and Embryonal
(genetics, metabolism, pathology)
- Oxidants
(pharmacology)
- Oxidative Stress
(drug effects)
- Protein Carbonylation
(drug effects)
- Testicular Neoplasms
(genetics, metabolism, pathology)
- Thiobarbituric Acid Reactive Substances
(metabolism)
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