کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5848768 | 1561704 | 2015 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The modulating effect of ATM, ATR, DNA-PK inhibitors on the cytotoxicity and genotoxicity of benzo[a]pyrene in human hepatocellular cancer cell line HepG2
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موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The modulating effect of ATM, ATR, DNA-PK inhibitors on the cytotoxicity and genotoxicity of benzo[a]pyrene in human hepatocellular cancer cell line HepG2 The modulating effect of ATM, ATR, DNA-PK inhibitors on the cytotoxicity and genotoxicity of benzo[a]pyrene in human hepatocellular cancer cell line HepG2](/preview/png/5848768.png)
چکیده انگلیسی
The effect of inhibitors of phosphatidylinositol-3-kinase-related kinases (PIKK): ataxia-telangiectasia mutated (ATM), ATM- and Rad3-related (ATR) and DNA-dependent protein kinase (DNA-PK) on response of HepG2 human liver cancer cells to benzo[a]pyrene (BaP) was investigated. PIKK inhibitors: KU55933 (5 μM), NU7026 (10 μM) or caffeine (1 and 2 mM) when used as single agents or in combinations (KU55933/NU7026 and caffeine/NU7026) did not significantly influence the BaP (3 μM) cytotoxicity (MTT reduction test). BaP induced a weak proapoptotic effect which was moderately enhanced by both inhibitor combinations. HepG2 cells exposed to BaP showed a strong S-phase arrest which was considerably diminished by both inhibitor combinations. The DNA damage (comet assay) induced after continuous 24 h exposure to BaP was significantly diminished by both inhibitor combinations. Weak induction of reactive oxygen species by BaP was observed, which was not modulated by the inhibitor combinations. Similarly, no modulation of the glutathione levels was observed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Toxicology and Pharmacology - Volume 40, Issue 3, November 2015, Pages 988-996
Journal: Environmental Toxicology and Pharmacology - Volume 40, Issue 3, November 2015, Pages 988-996
نویسندگان
Maciej StÄpnik, Sylwia SpryszyÅska, Anna Smok-PieniÄ
żek, Magdalena FerliÅska, Joanna Roszak, Marek NocuÅ,