...
首页> 外文期刊>Canadian Journal of Physiology and Pharmacology >Apoptosis of rat hepatic stellate cells induced by diallyl trisulfide and proteomics profiling in vitro
【24h】

Apoptosis of rat hepatic stellate cells induced by diallyl trisulfide and proteomics profiling in vitro

机译:二烯丙基三硫化物诱导的大鼠肝星状细胞的凋亡和体外蛋白质组学分析

获取原文
获取原文并翻译 | 示例
           

摘要

Diallyl trisulfide (DATS), a major garlic derivative, inhibits cell proliferation and triggers apoptosis in a variety of cancer cell lines. However, the effects of DATS on hepatic stellate cells (HSCs) remain unknown. The aim of this study was to analyze the effects of DATS on cell proliferation and apoptosis, as well as the protein expression profile in rat HSCs. Rat HSCs were treated with or without 12 and 24 mu g/mL DATS for various time intervals. Cell proliferation and apoptosis were determined using tetrazolium dye (MTT) colorimetric assay, bromodeoxyuridine (5-bromo-2'-deoxyuridine; BrdU) assay, Hoechst 33342 staining, electroscopy, and flow cytometry. Protein expression patterns in HSCs were systematically studied using 2-dimensional electrophoresis and mass spectrometry. DATS inhibited cell proliferation and induced apoptosis of HSCs in a time-dependent manner. We observed clear morphological changes in apoptotic HSCs and dramatically increased annexin V-positive - propidium iodide negative apoptosis compared with the untreated control group. Twenty-one significant differentially expressed proteins, including 9 downregulated proteins and 12 upregulated proteins, were identified after DATS administration, and most of them were involved in apoptosis. Our results suggest that DATS is an inducer of apoptosis in HSCs, and several key proteins may be involved in the molecular mechanism of apoptosis induced by DATS.
机译:二烯丙基三硫化物(DATS),主要的大蒜衍生物,抑制细胞增殖和在各种癌细胞系中的细胞凋亡。然而,DATS对肝星状细胞(HSC)的影响仍然是未知的。本研究的目的是分析DATS对细胞增殖和凋亡的影响,以及大鼠HSC中的蛋白质表达谱。用12和24μg/ mL进行各种时间间隔处理大鼠HSCs。使用四唑鎓染料(MTT)比色测定法测定细胞增殖和细胞凋亡,溴脱氧核(5-溴-2'-脱氧核; BRDU)测定,HOECHST 33342染色,电动仪和流式细胞术。使用二维电泳和质谱法系统地研究了HSC中的蛋白质表达模式。 DATS以时间依赖的方式抑制细胞增殖和诱导HSC的凋亡。与未处理对照组相比,我们观察到凋亡HSCs的明确形态变化,并显着增加了膜蛋白V阳性 - 碘化丙啶阴性凋亡。在DATS给药后鉴定出二十一种显着的差异表达蛋白,包括9个下调的蛋白质和12个上调的蛋白质,其中大多数参与细胞凋亡。我们的研究结果表明,DATS是HSC中细胞凋亡的诱导剂,几个关键蛋白质可能参与DATS诱导的细胞凋亡的分子机制。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号