kindlin-2通过调节notch1信号来控制血管新生
Yuechao Dong1, Guixing Ma2, Xiaoting Hou1
1Department of Biochemistry, School of Medicine, Southern University of Science and Technology, Guangdong Provincial Key Laboratory of Cell Microenvironment and Disease Research, Key University Laboratory of Metabolism and Health of Guangdong, Southern University of Science and Technology, Shenzhen, 518055, China.
Cellular and molecular life sciences : CMLS
|July 22, 2023
概括
kindlin-2对生理血管生成至关重要,这是对发育至关重要的过程. 它的缺乏会损害血管形成,强调Kindlin-2作为糖尿病视网膜病变等疾病的治疗点.
科学领域:
- 血管生物学 血管生物学
- 发展生物学 发展生物学
- 细胞信号传递 细胞信号传递
背景情况:
- 肯德林-2在器官发育中的作用已经确立,但其在血管生成中的功能仍然不清楚.
- 血管新生,新血管的形成,对于生理过程和疾病病理学至关重要.
- 缺口信号是调节血管生成的关键途径.
研究的目的:
- 研究Kindlin-2在Notch介导的生理血管生成中的作用.
- 阐明Kindlin-2调节血管生成的分子机制.
- 评估针对Kindlin-2在血管性疾病中的治疗潜力.
主要方法:
- 在小鼠模型中,内皮细胞特异性的Kindlin-2删除.
- 使用人类静脉内皮细胞 (HUVEC) 的体外研究.
- 免疫光染色,西式涂抹,以及用gamma分泌酶抑制剂 (DAPT) 的治疗.
主要成果:
- 内皮细胞中的Kindlin-2缺乏导致由于血管生成受损而导致胚胎死亡.
- kindlin-2增强了血管内皮生长因子A诱导的内皮细胞功能 (迁移,蛋白质分解,形态发生,发芽).
- kindlin-2稳定了NOTCH1,抑制了诺奇细胞内域的释放,并促进了血管生成.
- 高葡萄糖诱导的高活性血管生成是由Kindlin-2表达增加的介导.
结论:
- 在发育过程中,Kindlin-2对于Notch介导的生理血管生成至关重要.
- Kindlin-2 的作用是保持 NOTCH1 的完整性,从而调节下游信号.
- 肯德林-2是血管性疾病的潜在治疗点,包括糖尿病视网膜病变.
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