阿佩林通过增加BKCa在糖尿病病中缓解了内皮转移到介质细胞的过渡
Chunmeng Fan1,2, Yu Liu3, Jing Chang4
1Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Capital Medical University, Beijing, People's Republic of China.
概括
在糖尿病病中,阿佩林通过抑制内皮转移到介质细胞转移 (EndMT) 来降低纤维化. 这通过增加大导电性激活 (BKCa) 通道而发生,这抑制了Wnt/β-Catenin通路.
科学领域:
- 腎臟病學 (nephrology) 是一種醫學專業.
- 细胞生物学 细胞生物学
- 内分泌学 在内分泌学.
背景情况:
- 内皮转介质转换 (EndMT) 是纤维性病的关键过程,包括糖尿病病 (DN).
- 大导电活性 (BKCa) 通道与EndMT有关.
- 阿佩林是一种阿迪波金,可以通过BKCa通道在DN中调节EndMT.
研究的目的:
- 为了研究阿佩林在抑制糖尿病脏病中的质EndMT中的作用.
- 为了确定BKCa通道在阿佩林的保护作用中的参与.
- 阐明糖尿病质内皮细胞 (GEC) 中由阿佩林和BKCa调节的信号通路,包括Wnt/β-Catenin.
主要方法:
- 在使用糖尿病模型的体内和体外研究.
- 对内皮细胞 (CD31,VE-Cadherin) 和介质细胞 (α-SMA,Desmin) 标记物的评估.
- 在内皮细胞中特定的APJ淘汰.
- 使用IBTX (伊贝里毒素) 制造BKCa通道的药理抑制.
- 对Wnt/β-Catenin信号通路组件和SP1转位的分析.
主要成果:
- 阿佩林抑制了糖尿病球纤维化和EndMT,恢复了内皮标记物,减少了间细胞标记物.
- 这些效应被APJ淘汰在GECs中废除.
- 阿佩林增加了BKCa通道活性.
- 由IBTX抑制BKCa逆转了阿佩林对Wnt/β-Catenin通路的抑制.
- 此外,IBTX还抑制了SP1核转位,并增加了DKK1表达在阿佩林治疗的GEC中.
结论:
- 阿佩林通过激活BKCa通道来缓解糖尿病病中的EndMT和纤维化.
- 这种激活抑制了Wnt/β-Catenin通路,通过SP1转位和随后的DKK1上调调节在GEC中进行介导.
- 阿佩林代表了糖尿病病的潜在治疗标.
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