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2016 ; 7
(17
): 23212-26
Nephropedia Template TP
gab.com Text
Twit Text FOAVip
Twit Text #
English Wikipedia
E2F1-induced upregulation of long noncoding RNA LINC00668 predicts a poor
prognosis of gastric cancer and promotes cell proliferation through
epigenetically silencing of CKIs
#MMPMID27036039
Zhang E
; Yin D
; Han L
; He X
; Si X
; Chen W
; Xia R
; Xu T
; Gu D
; De W
; Guo R
; Xu Z
; Chen J
Oncotarget
2016[Apr]; 7
(17
): 23212-26
PMID27036039
show ga
Recently, long noncoding RNAs (lncRNAs) have been shown to have important
regulatory roles in human cancer biology. By utilizing publicly available lncRNAs
expression profiling data and integrating analyses, we screened out LINC00668,
whose expression is significantly increased and correlated with outcomes in
gastric cancer (GC). Further experiments revealed that LINC00668 knockdown
significantly repressed proliferation, both in vitro and in vivo. Mechanistic
investigations showed that LINC00668 was a direct transcriptional target of E2F
transcription factor 1 (E2F1). We further demonstrated that LINC00668 was
associated with PRC2 and that this association was required for epigenetic
repression of cyclin-dependent protein kinase inhibitors (CKIs), including p15,
p16, p21, p27 and p57, thus contributing to the regulation of the gastric cancer
cell cycle. Our results suggest that E2F1-activated LINC00668, as a cell cycle
regulator, enriches the mechanistic link between lncRNA and the E2F1-mediated
cell cycle regulation pathway and may serve as a candidate prognostic biomarker
and target for new therapies in human gastric cancer.