کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8546101 | 1561688 | 2017 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Oxidative stress-elicited autophagosome accumulation contributes to human neuroblastoma SH-SY5Y cell death induced by PBDE-47
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
بهداشت، سم شناسی و جهش زایی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Oxidative stress-elicited autophagosome accumulation contributes to human neuroblastoma SH-SY5Y cell death induced by PBDE-47 Oxidative stress-elicited autophagosome accumulation contributes to human neuroblastoma SH-SY5Y cell death induced by PBDE-47](/preview/png/8546101.png)
چکیده انگلیسی
Polybrominated diphenyl ethers, a ubiquitous persistent organic pollutant used as brominated flame retardants, is known to damage nervous system, however the underlying mechanism is still elusive. In this study, we used human neuroblastoma SH-SY5Y cells to explore the effects of PBDE-47 on autophagy and investigate the role of autophagy in PBDE-47-induced cell death. Results showed PBDE-47 could increase autophagic level (performation of cell ultrastructure with double membrane formation, MDC-positive cells raised, autophagy-related proteins LC3-II, Beclin1 and P62 increased) after cells exposed to PBDE-47. Then cells were exposed to PBDE-47 (1, 5, 10 μmol/L) respectively for 1, 3, 6, 9, 12, 18, 24 h, and the results showed that PBDE-47 increased the levels of LC3-II, Beclin1 and P62 in 5, 10 μmol/L (9, 12, 18, 24 h) PBDE-47 exposed groups. Furthermore, ROS scavenger N-Acetyl-l-cysteine (NAC), autophagic inhibitor 3-methyladenine (3-MA) and 5 μmol/L PBDE-47 treated for 9 h and 24 h were chosen for the follow-up research. Moreover, 3-MA significantly improved cell viability when cells exposed to 5 and 10 μmol/L PBDE-47, indicating that PBDE-47-induced autophagic cell death. Importantly, NAC could decrease PBDE-47-induced LC3-II, Beclin1 and P62 expression. We concluded that autophagosome accumulation mediated by oxidative stress may contribute to SH-SY5Y cell death induced by PBDE-47.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Environmental Toxicology and Pharmacology - Volume 56, December 2017, Pages 322-328
Journal: Environmental Toxicology and Pharmacology - Volume 56, December 2017, Pages 322-328
نویسندگان
Cheng Zhang, Pei Li, Shun Zhang, Rongrong Lei, Bei Li, Xue Wu, Chunyang Jiang, Xiaofei Zhang, Rulin Ma, Lu Yang, Chao Wang, Xiao Zhang, Tao Xia, Aiguo Wang,