摘要
胰岛素通过刺激葡萄糖转运蛋白4(GLUT4)的转运调节脂肪细胞和肌细胞摄取葡萄糖,维持机体内的血糖平衡。Rab蛋白是GTP结合蛋白。近几年研究表明,Rab蛋白是影响GLUT4转运到细胞膜的重要调控因子,参与GLUT4囊泡的形成转运以及融合等过程。本文综述了几种不同的Rab蛋白以及Rab蛋白的GTP酶激活蛋白即分子质量160 ku蛋白激酶B底物蛋白(AS160)对于GLUT4转运的调控机制。对Rab蛋白调控GLUT4转运机制的研究,有助于解释2型糖尿病的胰岛素耐受机制,并可为糖尿病治疗提供新的方向。
Insulins maintain blood glucose homeostasis in the body by stimulating glucose uptake into muscle and adipose tissues through glucose transporter type 4（GLUT4）translocation. Recent studies have showed that Rab proteins,as a key regulatory factor for the translocation of GLUT4 to the cell membrane,participate in the formation,translocation and fusion of GLUT4 vesicles. This paper describes several types Rab proteins and the Rab GTPase activating protein,protein kinase B substrate of 160 k U（AS160）in terms of regulatory mechanisms for GLUT4 translocation. Studies on the translocation mechanism by which GLUT4 is regulated by Rabs aim to explain the mechanism of insulin resistance in type 2 diabetes,and provide a new approach to diabetes.
出处
《中国药理学与毒理学杂志》
CAS
CSCD
北大核心
2016年第7期770-776,共7页
Chinese Journal of Pharmacology and Toxicology
基金
浙江省自然科学基金(LY14H310003)
浙江省自然科学基金(LY13C050001)
教育部博士点基金(20130101120172)~~
