在糖尿病中,SEC61B调节流和血小板过敏反应
Yvonne X Kong1,2,3,4, Rajan Rehan3,5, Cesar L Moreno1,6,7
1Charles Perkins Centre, University of Sydney, Sydney, New South Wales, Australia.
糖尿病血小板过敏反应与流量增加有关,由 SEC61B 的升高驱动. 这种由内质网膜压力诱导的机制有助于糖尿病中心血管血栓形成的风险.
科学领域:
- 生物化学 生物化学
- 血液学 血液学 血液学
- 内分泌学 在内分泌学.
背景情况:
- 糖尿病中血小板过敏反应会增加心血管血栓形成的风险.
- 血小板中的流量升高是关键因素,但其潜在机制尚不清楚.
- 这项研究研究了糖尿病中血小板功能障碍的新机制.
研究的目的:
- 为了确定血小板在2型糖尿病中分化释放的蛋白质.
- 阐明SEC61B在血小板处理和高反应性中的作用.
- 探索在高血糖症中内细胞网膜压力和血小板功能之间的联系.
主要方法:
- 对来自人类和小鼠的血小板进行高灵敏度蛋白质组分析.
- 在HEK293细胞中进行过度表达研究,以评估SEC61B功能.
- 在体内和体外实验中使用异构素来抑制SEC61.1.
主要成果:
- 在高血糖患者和小鼠的血小板中,SEC61转位子单元β (SEC61B) 显著增加.
- SEC61B的过度表达导致细胞质的增加和蛋白质合成的减少,模仿糖尿病血小板行为的行为.
- 高血糖血小板表现出增加的内 плазма网膜应激,这诱导了SEC61B表达和细胞质的升高.
- 抑制SEC61降低了血小板流和聚合在体外和体内.
结论:
- 脑内质网膜压力诱导的SEC61B上调是一种新的机制,有助于糖尿病中血小板过敏反应.
- 向SEC61可能提供一种治疗策略,以减轻糖尿病患者的血小板功能障碍和血栓形成风险.
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