Glucose transporter 4 (GLUT4) plays a crucial role in maintaining whole-body glucose homeostasis. It has been revealed that GLUT4 storage vesicles (GSV) and secretory vesicles in neuroendocrine cells contain similar proteins. Many studies have demonstrated that the intracellular transport of secretory vesicles is precisely mediated by these proteins. However, it is still unclear whether GSVs share similar dynamic features with secretory vesicles during intracellular trafficking. In this paper, GSV in 3T3-L1...
【基金】
国家自然科学基金项目(60071030和30327001)
【更新日期】
2005-10-23
【分类号】
R33
【正文快照】
1引言葡萄糖转运子蛋白4(glucose transporter 4,G LU T4)在维持体内葡萄糖动态平衡的过程中起着至关重要的作用。当摄取葡萄糖时,细胞膜上的G LU T4形成一个水性孔道,利于葡萄糖从细胞外顺浓度梯度进入细胞内,从而降低血液中葡萄糖水平[1]。在Ⅱ型糖尿病的研究中,有越来越多的