T-2毒素通过p53-cyclophilin D路径诱导 mitochondrial 功能障碍在红细胞中
Fang-Fang Yu1, Shui-Yuan Yu1, Lei Sun1
1School of Public Health, Zhengzhou University, 100 Kexue Avenue, Zhengzhou, Henan 450001, China.
暴露于T-2毒素会通过损伤胆红细胞引起卡辛-贝克病. 这项研究揭示了T-2毒素激活了p53-cyclophilin D途径,导致线粒体功能障碍和细胞死亡.
科学领域:
- 生物化学 生化学
- 细胞生物学 细胞生物学
- 毒理学 毒理学 毒理学
背景情况:
- 卡辛-贝克病是一种与T-2毒素暴露相关的特有关节疾病.
- 冠状细胞亡是疾病的标志,这表明细胞损伤机制需要调查.
研究的目的:
- 阐明T-2毒素诱导 mitochondrial 功能障碍的机制.
- 调查p53-cyclophilin D (CypD) 途径在T-2毒素诱导的状细胞损伤中的作用.
主要方法:
- 基因卡的分析确定了T-2毒素反应中的p53信号通路.
- 在大鼠软骨和ATDC5细胞中评估了p53和p53-CypD复合物的升级.
- 传输电子显微镜评估了线粒体结构,并通过膜潜力和ROS生成评估了线粒体功能.
主要成果:
- 暴露于T-2毒素上调了p53蛋白和chondrocytes中的p53-CypD复合体.
- 观察到线粒体损伤,包括mPTP开放,膜潜能降低和ROS增加.
- 使用Pifithrin-α减轻T-2毒素诱导的线粒体功能障碍抑制p53.
结论:
- T-2毒素激活p53,它转移到线粒体,与CypD复合,并触发线粒体功能障碍.
- p53-CypD相互作用调解了过度的mPTP开放,导致卡辛-贝克病的冠状细胞亡.
- 针对p53-CypD通路可能为T-2毒素诱导的关节疾病提供治疗策略.
更多相关视频
15:43Assessment of Mitochondrial Functions and Cell Viability in Renal Cells Overexpressing Protein Kinase C Isozymes
Published on: January 7, 2013
06:53Visualization of Mitochondrial Respiratory Function using Cytochrome C Oxidase / Succinate Dehydrogenase COX/SDH Double-labeling Histochemistry
Published on: November 23, 2011
相关概念视频
Electron Transport Chain: Complex I and II
ROS generation is regulated and maintained at moderate levels necessary...
Abnormal Proliferation
The Electron Transport Chain
Inhibitors of the electron transport chain
Rotenone, a widely used pesticide, prevents electron transfer from Fe-S cluster to ubiquinone or Q...
The Intrinsic Apoptotic Pathway
Translocation of Proteins into the Mitochondria
Sorting of outer membrane proteins:
Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
Energy to Drive Translocation
Generally, polypeptides are unfolded by two distinct...
