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2017 ; 18
(2
): ä Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
Inhibition of CCAR1, a Coactivator of ?-Catenin, Suppresses the Proliferation and
Migration of Gastric Cancer Cells
#MMPMID28230774
Chang TS
; Wei KL
; Lu CK
; Chen YH
; Cheng YT
; Tung SY
; Wu CS
; Chiang MK
Int J Mol Sci
2017[Feb]; 18
(2
): ä PMID28230774
show ga
The aberrant activation of Wnt signaling has been implicated in a variety of
human cancers, including gastric cancer. Given the current hypothesis that cancer
arises from cancer stem cells (CSCs), targeting the critical signaling pathways
that support CSC self-renewal appears to be a useful approach for cancer therapy.
Cell cycle and apoptosis regulator 1 (CCAR1) is a transcriptional coactivator
which has been shown to be a component of Wnt/?-catenin signaling, and which
plays an important role in transcriptional regulation by ?-catenin. However, the
function and clinical significance of CCAR1 in gastric cancer have not been
elucidated. Here, we show that elevated CCAR1 nuclear expression correlates with
the occurrence of gastric cancer. In addition, RNAi-mediated CCAR1 reduction not
only suppressed the cell growth and increased apoptosis in AGS and MKN28 cells,
but also reduced the migration and invasion ability of these cells. Furthermore,
an in vivo xenograft assay revealed that the expression level of CCAR1 was
critical for tumorigenesis. Our data demonstrates that CCAR1 contributes to
carcinogenesis in gastric cancer and is required for the survival of gastric
cancer cells. Moreover, CCAR1 may serve as a diagnostic marker and a potential
therapeutic target.