Research Project
Grant-in-Aid for Young Scientists (B)
GLP-1 is important for regulation of insulin secretion in pancreatic beta cells but the signaling of GLP-1 is not well known. We previously reported that inhibition of class IA phosphatidylinositol 3-kinase (PI3K), using a mouse model lacking the pik3r1 gene specifically in beta cells and the pik3r2 gene systemically (beta DKO mouse), results in glucose intolerance and reduced early insulin secretion. We investigated the relation of GLP-1 and PI3K. The administration of GLP-1 analog in beta DKO mice didn`t recover the early insulin secretion. The microarray analysis showed the down-regulation of lipid and mitochondria related genes and GLP1 receptor gene. This result indicated that PI3K in pancreatic beta cells is important for lipid and mitochondria homeostasis and regulate expression of GLP-1 receptor.
All 2014 2013 2012 2011
All Journal Article (4 results) Presentation (15 results)
日本医師会雑誌
Volume: 143巻・1号 Pages: 34-38
Current Therapy
Volume: 32巻4号 Pages: 331-334
Volume: 32 Pages: 331-334
内分泌・糖尿病・代謝内科
Volume: 33巻1号 Pages: 56-60
40018961562