TRIM21-FOXD1-BCL-2轴是高血糖细胞死亡和糖尿病组织损伤的基础
Wenwen Cheng1, Cifeng Cai1, Yifan Xu1
1College of Life and Environmental Science, Wenzhou University, Wenzhou, 325035, China.
Cell death & disease
|December 13, 2023
概括
高血糖 (高血糖) 引发眼睛和脏中的细胞死亡. 研究人员确定了一条涉及TRIM21,FOXD1和BCL-2的途径,该途径驱动了这种损伤,麦黄素显示出治疗潜力.
科学领域:
- 分子生物学分子生物学
- 细胞生物学 细胞生物学
- 内分泌学 在内分泌学.
背景情况:
- 慢性高血糖是糖尿病并发症的主要原因,导致视网膜和损伤.
- 驱动高血糖引起的细胞死亡的确切机制仍然不完全理解.
- 了解这些途径对于开发糖尿病病和视网膜病变的有效治疗至关重要.
研究的目的:
- 阐明在视网膜和脏组织中高血糖引起的亡背后的分子机制.
- 确定关键的调节因素和参与糖尿病并发症的信号通路.
- 探索针对这些途径的潜在治疗干预措施.
主要方法:
- 研究了FOXD1 (转录因子) 在高血糖条件下调节BCL-2 (细胞生存基因) 的作用.
- 研究了FOXD1蛋白水平通过TRIM21介导的全方位化和蛋白质体降解的调节.
- 在糖尿病视网膜和损伤的小鼠模型中评估了TRIM21-FOXD1-BCL-2信号轴的活性.
- 评估了谷黄素对这种途径和组织存活的治疗作用.
主要成果:
- FOXD1直接调节BCL-2的转录,这是细胞存活的关键因素.
- 高血糖症导致FOXD1蛋白水平通过TRIM21介导的降解而降低.
- TRIM21-FOXD1-BCL-2信号轴与糖尿病对视网膜和脏的损伤有关.
- 麦麦黄酸有效逆转FOXD1下调,恢复BCL-2表达,并促进组织存活.
结论:
- 在糖尿病并发症的背景下确定FOXD1为BCL-2表达的关键转录因子.
- 发现了TRIM21-FOXD1-BCL-2信号轴作为高血糖引起的亡的关键媒介.
- 证明了麦黄素的潜力,作为减轻糖尿病视网膜和损伤的治疗策略.
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