Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Deprecated: Implicit conversion from float 219.6 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534
Warning: imagejpeg(C:\Inetpub\vhosts\kidney.de\httpdocs\phplern\27572318
.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Oncotarget
2016 ; 7
(39
): 63767-63778
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
RSPOs facilitated HSC activation and promoted hepatic fibrogenesis
#MMPMID27572318
Yin X
; Yi H
; Wang L
; Wu W
; Wu X
; Yu L
Oncotarget
2016[Sep]; 7
(39
): 63767-63778
PMID27572318
show ga
Roof plate-specific spondin (RSPO) proteins are potent Wnt pathway agonists and
involve in a broad range of developmental and physiological processes. This study
investigated the activities and mechanisms of RSPOs in liver fibrogenesis,
especially in hepatic stellate cell (HSC) activation. HSC activation was assessed
by fibrosis biomarker (?-smooth muscle actin and Collagen-I), phenotypic change
(accumulation of lipid droplets), and increased proliferation. Similarly, Wnt
pathway activity was evaluated by the expression of nuclear ?-catenin and T
cell-specific transcription factors (TCF) activity. We found RSPOs were
overexpressed in human fibrotic liver tissue and the expressions were correlated
with liver fibrosis stages. In vitro studies showed RSPOs level increased during
HSC activation, and stimuli with RSPOs enhanced Wnt pathway activity and promoted
HSC activation subsequently. Furthermore, in vivo experiments demonstrated that
the knockdown of RSPOs suppressed both Wnt pathway activity and HSC activation.
Interestingly, the inhibitor of the Wnt signaling pathway Dickkopf1 impairs RSPOs
effects on HSCs. Taken together, our results revealed that RSPOs facilitated HSC
activation and promote liver fibrogenesis by enhancing the Wnt pathway.