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Vitamin C inhibits glycidamide-induced genotoxicity and apoptosis in Sertoli cells.
Journal of Biochemical and Molecular Toxicology ( IF 3.2 ) Pub Date : 2020-07-07 , DOI: 10.1002/jbt.22545
Banu Orta Yilmaz 1 , Nebahat Yildizbayrak 1 , Yasemin Aydin 1
Affiliation  

Exposure to the food contaminant acrylamide and its reactive epoxide metabolite glycidamide (GA) induces reactive oxygen species (ROS)‐mediated oxidative stress and subsequent cellular death. Recent studies have revealed that the toxic effects of acrylamide may be due to GA, especially on male reproductive system cells. In this regard, it is important to determine the effects of GA on Sertoli cells, which are essential cells for the male reproductive system. Antioxidants should be consumed in sufficient quantities to minimise the effects of environmental pollutants. This study aimed to determine the direct toxic effects of GA and protective effects of vitamin C (VitC) against GA‐induced damage in Sertoli cells by measuring cell viability, cytotoxicity, lipid peroxidation, ROS, antioxidant enzyme levels, apoptosis and DNA damage. Sertoli cells were exposed to GA for 24 hours at four different concentrations (ranging between 1 and 1000 μM) and in addition to these GA concentrations to VitC (50 μM). The results of cytotoxicity markers, such as cell viability and lactate dehydrogenase (LDH) showed that GA significantly reduced cell viability and increased LDH levels. We also found that GA induced overproduction of intracellular ROS, increased lipid peroxidation in cellular membrane and triggered cell apoptosis and genotoxicity. In addition, VitC supplementation ameliorated the adverse effects of GA on Sertoli cells. Consequently, these findings suggest that GA may damage the cell function in Sertoli cells, depending on the concentration. Additionally, it was evidenced that VitC has an ameliorative effect on toxicity caused by GA.

中文翻译:

维生素 C 抑制缩水甘油酰胺诱导的支持细胞遗传毒性和细胞凋亡。

接触食品污染物丙烯酰胺及其活性环氧化物代谢物缩水甘油酰胺(GA)会诱导活性氧(ROS)介导的氧化应激和随后的细胞死亡。最近的研究表明,丙烯酰胺的毒性作用可能是由于GA,尤其是对男性生殖系统细胞的毒性作用。在这方面,确定 GA 对支持细胞的影响非常重要,支持细胞是男性生殖系统的重要细胞。应消耗足够量的抗氧化剂,以尽量减少环境污染物的影响。本研究旨在通过测量细胞活力、细胞毒性、脂质过氧化、ROS、抗氧化酶水平、细胞凋亡和 DNA 损伤,确定 GA 的直接毒性作用和维生素 C (VitC) 对 GA 诱导的支持细胞损伤的保护作用。支持细胞暴露于四种不同浓度(范围在 1 至 1000 μM 之间)的 GA 中 24 小时,并且除了这些 GA 浓度外,还暴露于 VitC (50 μM)。细胞毒性标记物,例如细胞活力和乳酸脱氢酶(LDH)的结果表明,GA显着降低了细胞活力并增加了LDH水平。我们还发现,GA 诱导细胞内 ROS 过量产生,增加细胞膜中的脂质过氧化,并引发细胞凋亡和遗传毒性。此外,补充 VitC 还可以改善 GA 对支持细胞的不利影响。因此,这些发现表明,GA 可能会损害支持细胞的细胞功能,具体取决于浓度。此外,有证据表明VitC对GA引起的毒性具有改善作用。
更新日期:2020-09-14
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