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2017 ; 8
(8
): e2997
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Long noncoding RNA CRNDE promotes colorectal cancer cell proliferation via
epigenetically silencing DUSP5/CDKN1A expression
#MMPMID28796262
Ding J
; Li J
; Wang H
; Tian Y
; Xie M
; He X
; Ji H
; Ma Z
; Hui B
; Wang K
; Ji G
Cell Death Dis
2017[Aug]; 8
(8
): e2997
PMID28796262
show ga
Evidence indicates that long non-coding RNAs (lncRNAs) play a critical role in
the regulation of tumor cellular processes, such as proliferation, apoptosis, and
metastasis. LncRNA CRNDE (Colorectal Neoplasia Differentially Expressed) is
located at human chromosome 16 and has been found overexpressed in a variety of
cancers including colorectal cancer (CRC). In this paper, we report that lncRNA
CRNDE expression was remarkably upregulated in CRC tissues and that lncRNA CRNDE
overexpression was positively correlated with advanced pathological stages and
larger tumor sizes. In addition, the knockdown of CRNDE significantly suppressed
proliferation and caused apoptosis of CRC cells both in vitro and in vivo.
Furthermore, RNA immunoprecipitation and chromatin immunoprecipitation assays
demonstrated that lncRNA CRNDE could epigenetically suppress the expressions of
dual-specificity phosphatase 5 (DUSP5) and CDKN1A by binding to EZH2 (the key
components of Polycomb repressive complex 2 (PRC2)), thus promoting CRC
development. In conclusion, our data suggest that the lncRNA CRNDE promotes the
progression of CRC and is a potential therapeutic target for CRC intervention.