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2015 ; 6
(33
): 34402-13
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The G-protein-coupled bile acid receptor Gpbar1 (TGR5) suppresses gastric cancer
cell proliferation and migration through antagonizing STAT3 signaling pathway
#MMPMID26417930
Guo C
; Su J
; Li Z
; Xiao R
; Wen J
; Li Y
; Zhang M
; Zhang X
; Yu D
; Huang W
; Chen WD
; Wang YD
Oncotarget
2015[Oct]; 6
(33
): 34402-13
PMID26417930
show ga
Gpbar1 (TGR5), a membrane-bound bile acid receptor, is well known for its roles
in regulation of energy homeostasis and glucose metabolism. Here we show that
TGR5 is a suppressor of gastric cancer cell proliferation and migration through
antagonizing STAT3 signaling pathway. We firstly show that TGR5 activation
greatly inhibited proliferation and migration of human gastric cancer cells and
strongly induced gastric cancer cell apoptosis. We then found that TGR5
activation antagonized STAT3 signaling pathway through suppressing the
phosphorylation of STAT3 and its transcription activity induced by
lipopolysaccharide (LPS) or interleukin-6. TGR5 overexpression with ligand
treatment inhibited gene expression mediated by STAT3. It suggests that TGR5
antagonizes gastric cancer proliferation and migration at least in part by
inhibiting STAT3 signaling. These findings identify TGR5 as a suppressor of
gastric cancer cell proliferation and migration that may serve as an attractive
therapeutic tool for human gastric cancer.