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2015 ; 6
(32
): 32586-601
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
MicroRNA-506 suppresses tumor proliferation and metastasis in colon cancer by
directly targeting the oncogene EZH2
#MMPMID26452129
Zhang Y
; Lin C
; Liao G
; Liu S
; Ding J
; Tang F
; Wang Z
; Liang X
; Li B
; Wei Y
; Huang Q
; Li X
; Tang B
Oncotarget
2015[Oct]; 6
(32
): 32586-601
PMID26452129
show ga
Increasing evidence reveals that aberrant expression of microRNA contributes to
the development and progression of colon cancer, but the roles of microRNA-506
(miR-506) in colon cancer remain elusive. Here, we demonstrated that miR-506 was
down-regulated in colon cancer tissue and cells and that miR-506 expression was
inversely correlated with EZH2 expression, tumor size, lymph node invasion, TNM
stage and metastasis. A high level of miR-506 identified patients with a
favorable prognosis. In vitro and in vivo experiments confirmed that miR-506
inhibits the proliferation and metastasis of colon cancer, and a luciferase
reporter assay confirmed that EZH2 is a direct and functional target of miR-506
via the 3'UTR of EZH2. The restoration of EZH2 expression partially reversed the
proliferation and invasion of miR-506-overexpressing colon cancer cells.
Moreover, we confirmed that the miR-506-EZH2 axis inhibits proliferation and
metastasis by activating/suppressing specific downstream tumor-associated genes
and the Wnt/?-catenin signaling pathway. Taking together, our study sheds light
on the role of miR-506 as a suppressor for tumor growth and metastasis and raises
the intriguing possibility that miR-506 may serve as a new potential marker for
monitoring and treating colon cancer.