Rab27a:: a new face in β cell metabolism-secretion coupling

被引:26
作者
Aizawa, T
Komatsu, M
机构
[1] Shinshu Univ, Ctr Hlth Safety & Environm Management, Matsumoto, Nagano 3908621, Japan
[2] Shinshu Univ, Grad Sch Med, Dept Aging Med & Geriatr, Matsumoto, Nagano 3908621, Japan
关键词
D O I
10.1172/JCI200524269
中图分类号
R-3 [医学研究方法]; R3 [基础医学];
学科分类号
1001 ;
摘要
In pancreatic beta cells, not only insulin exocytosis per se, but translocation of beta granules toward the plasma membrane - an event upstream of exocytosis - are under the control of glucose. However, the molecular basis of this translocation has been poorly understood. Rab27a-mediated translocation of glucose-induced beta granules is reported in this issue of the JCI (see the related article beginning on page 388). Rab27a or its effector molecule may constitute a novel pharmacological target because potentiation of the Rab27a pathway is expected to restore beta cell glucose competency in patients with diabetes mellitus.
引用
收藏
页码:227 / 230
页数:4
相关论文
共 24 条
[1]   Importance of nonionic signals for glucose-induced biphasic insulin secretion [J].
Aizawa, T ;
Sato, Y ;
Komatsu, M .
DIABETES, 2002, 51 :S96-S98
[2]   The role of long-chain fatty acyl-CoA esters in β-cell signal transduction [J].
Corkey, BE ;
Deeney, JT ;
Yaney, GC ;
Tornheim, K ;
Prentki, M .
JOURNAL OF NUTRITION, 2000, 130 (02) :299S-304S
[3]   Identification of the docked granule pool responsible for the first phase of glucose-stimulated insulin secretion [J].
Daniel, S ;
Noda, M ;
Straub, SG ;
Sharp, GWG .
DIABETES, 1999, 48 (09) :1686-1690
[4]   Glucose-regulated anaplerosis and cataplerosis in pancreatic β-cells -: Possible implication of a pyruvate/citrate shuttle in insulin secretion [J].
Farfari, S ;
Schulz, V ;
Corkey, B ;
Prentki, M .
DIABETES, 2000, 49 (05) :718-726
[5]   EVIDENCE THAT GLUCOSE CAN CONTROL INSULIN RELEASE INDEPENDENTLY FROM ITS ACTION ON ATP-SENSITIVE K+ CHANNELS IN MOUSE B-CELLS [J].
GEMBAL, M ;
GILON, P ;
HENQUIN, JC .
JOURNAL OF CLINICAL INVESTIGATION, 1992, 89 (04) :1288-1295
[6]   Triggering and amplifying pathways of regulation of insulin secretion by glucose [J].
Henquin, JC .
DIABETES, 2000, 49 (11) :1751-1760
[7]   Rab27a mediates the tight docking of insulin granules onto the plasma membrane during glucose stimulation [J].
Kasai, K ;
Ohara-Imaizumi, M ;
Takahashi, N ;
Mizutani, S ;
Zhao, SL ;
Kikuta, T ;
Kasai, H ;
Nagamatsu, S ;
Gomi, H ;
Izumi, T .
JOURNAL OF CLINICAL INVESTIGATION, 2005, 115 (02) :388-396
[8]   Augmentation of Ca2+-stimulated insulin release by glucose and long-chain fatty acids in rat pancreatic islets -: Free fatty acids mimic ATP-sensitive K+ channel-independent insulinotropic action of glucose [J].
Komatsu, M ;
Yajima, H ;
Yamada, S ;
Kaneko, T ;
Sato, Y ;
Yamauchi, K ;
Hashizume, K ;
Aizawa, T .
DIABETES, 1999, 48 (08) :1543-1549
[9]   Mitochondrial glutamate acts as a messenger in glucose-induced insulin exocytosis [J].
Maechler, P ;
Wollheim, CB .
NATURE, 1999, 402 (6762) :685-689
[10]  
NEVINS AK, 2004, J BIOL CHEM, DOI DOI 10.1074/JBC.M09528200