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2015 ; 5
(ä): 12366
Nephropedia Template TP
gab.com Text
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English Wikipedia
TMPRSS4 facilitates epithelial-mesenchymal transition of hepatocellular carcinoma
and is a predictive marker for poor prognosis of patients after curative
resection
#MMPMID26190376
Wang CH
; Guo ZY
; Chen ZT
; Zhi XT
; Li DK
; Dong ZR
; Chen ZQ
; Hu SY
; Li T
Sci Rep
2015[Jul]; 5
(ä): 12366
PMID26190376
show ga
TMPRSS4 (Transmembrane protease serine 4) is up-regulated in a broad spectrum of
cancers. However, little is known about the biological effects of TMPRSS4 on
hepatocellular carcinoma (HCC) and the related mechanisms. In the present study,
we found that overexpression of TMPRSS4 significantly promoted the invasion,
migration, adhesion and metastasis of HCC. Further more, TMPRSS4 induced EMT of
HCC, which was mediated via snail and slug as a result of Raf/MEK/ERK1/2
activation, and inhibition of ERK1/2 activation by its inhibitor was associated
with reduced cell invasion and reversion of EMT. In addition, we demonstrated
that TMPRSS4 remarkably suppressed the expression of RECK, an inhibitor of
angiogenesis, and drastically induced tumor angiogenesis and growth. More
important, in clinical HCC specimens, TMPRSS4 expression was significantly
correlated with tumor staging and was inversely correlated with E-cadherin and
RECKS expression. Expression of TMPRSS4 is significantly associated with HCC
progression and is an independent prognostic factor for postoperative worse
survival and recurrence. In conclusion, TMPRSS4 functions as a positive regulator
of Raf/MEK/ERK1/2 pathway and promotes HCC progression by inducing EMT and
angiogenesis. The increase of TMPRSS4 expression may be a key event for HCC
progression and may be regarded as a potential prognostic marker for HCC.