The global transcriptional response of isolated human islets of langerhans to glucagon-like Peptide-1 receptor agonist liraglutide.
GLP-1 and its analog have been used in diabetes treatment; however, the direct alteration of gene expression profile in human islets induced by GLP-1 has not been reported. In present study, transcriptional gene expression in the liraglutide-treated human islets was analyzed with 12 human U133A chips including 23000 probe sets. The data compared between liraglutide and control groups showed a significant difference on glucose-induced insulin secretion, rather than viability. Microarray analysis identified 7000 genes expressed in human islets. Eighty genes were found to be modulated by liraglutide treatment. Furthermore, the products of these genes are proteins involved in binding capability, enzyme activity, transporter function, signal transduction, cell proliferation, apoptosis, and cell differentiation. Our data provides a set of information in the complex events, following the activation of the GLP-1 receptor in the islets of Langerhans.
Center of Metabolic Diseases, Beijiao Hospital, Southern Medical University, North 1838 Guangzhou Road, Guangzhou 510515, China ; International Center for Metabolic Diseases, Southern Medical University (SMU), 8 Floor, Life Science Build, North 1838 Guangzhou Road, Guangzhou 510515, China ; Department of Medicine, Cedar-Sinai Medical Center, Los Angeles, CA 90048, USA.
Xiaoning
X
Zhao
Yongming G
YG
Tang
S Vincent
SV
Wu
Charles
C
Wang
Ricardo
R
Perfetti
Nasif
N
Khoury
Dehong
D
Cai
Fang
F
He
Xiaogang
X
Su
Vay Liang W
VL
Go
Hongxiang
H
Hui