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2016 ; 7
(34
): 55518-55528
Nephropedia Template TP
gab.com Text
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English Wikipedia
Downregulated pseudogene CTNNAP1 promote tumor growth in human cancer by
downregulating its cognate gene CTNNA1 expression
#MMPMID27487124
Chen X
; Zhu H
; Wu X
; Xie X
; Huang G
; Xu X
; Li S
; Xing C
Oncotarget
2016[Aug]; 7
(34
): 55518-55528
PMID27487124
show ga
Accumulating evidence indicates that deregulation of cancer-associated pseudogene
is involved in the pathogenesis of cancer. In the study, we demonstrated that
pseudogene CTNNAP1, for the CTNNA1 gene, was dysregulated in colorectal cancer
and the degree of dysregulation was remarkably associated with tumor node
metastasis (TNM) stage (P<0.05). The mechanistic experiments revealed that
pseudogene CTNNAP1 played a pivotal role in the regulation of its cognate gene
CTNNA1 by competition for microRNA-141. Moreover, gain-of-function approaches
showed that overexpression of CTNNAP1 or CTNNA1 significantly inhibited cell
proliferation and tumor growth in vitro and in vivo by inducing G0/G1 cell cycle
arrest. Our findings add a new regulatory circuit via competing endogenous RNA
(ceRNA) cross-talk between pseudogene CTNNAP1 and its cognate gene CTNNA1, and
provide new insights into potential diagnostic biomarker for monitoring human
colorectal cancer.