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2017 ; 8
(32
): 52211-52224
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
The pseudogene derived long noncoding RNA DUXAP8 promotes gastric cancer cell
proliferation and migration via epigenetically silencing PLEKHO1 expression
#MMPMID28881724
Ma HW
; Xie M
; Sun M
; Chen TY
; Jin RR
; Ma TS
; Chen QN
; Zhang EB
; He XZ
; De W
; Zhang ZH
Oncotarget
2017[Aug]; 8
(32
): 52211-52224
PMID28881724
show ga
Gastric cancer (GC) is the third leading cause of cancer death due to its poor
prognosis and limited treatment options. Evidence indicates that
pseudogene-derived long noncoding RNAs (lncRNAs) may be important players in
human cancer progression, including GC. In this paper, we report that a newly
discovered pseudogene-derived lncRNA named DUXAP8, a 2107-bp RNA, was remarkably
upregulated in GC. Additionally, a higher level of DUXAP8 expression in GC was
significantly associated with greater tumor size, advanced clinical stage, and
lymphatic metastasis. Patients with a higher level of DUXAP8 expression had a
relatively poor prognosis. Further experiments revealed that knockdown of DUXAP8
significantly inhibited cell proliferation and migration, as documented in the
SGC7901 and BGC823 cell lines. Furthermore, RNA immunoprecipitation and chromatin
immunoprecipitation assays demonstrated that DUXAP8 could epigenetically suppress
the expression of PLEKHO1 by binding to EZH2 and SUZ12 (two key components of
PRC2), thus promoting GC development. Taken together, our findings suggest that
the pseudogene-derived lncRNA DUXAP8 promotes the progression of GC and is a
potential therapeutic target for GC intervention.