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2017 ; 8
(35
): 59435-59445
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A novel lncRNA, LL22NC03-N64E9 1, represses KLF2 transcription through binding
with EZH2 in colorectal cancer
#MMPMID28938648
Lian Y
; Yan C
; Ding J
; Xia R
; Ma Z
; Hui B
; Ji H
; Zhou J
; Wang K
Oncotarget
2017[Aug]; 8
(35
): 59435-59445
PMID28938648
show ga
Long noncoding RNAs (lncRNA) have been implicated in variety human cancer but
their mechanisms of function are mainly undocumented. In the present study, we
investigated lncRNAs alteration that contributed to colorectal cancer (CRC) by
utilizing TCGA RNA sequencing data and other publicly available lncRNAs
expression profiling data. Here, We screened out the CRC-associated lncRNA
LL22NC03-N64E9.1, a key regulator of CRC development and progression. We also
revealed that knockdown of LL22NC03-N64E9.1 inhibited cell proliferation, colony
formation, tumorigenicity and apoptosis promotion, both in vitro and in vivo.
Mechanistically, LL22NC03-N64E9.1 repressed underlying target gene KLF2
transcription through binding to EZH2. Furthermore, rescue experiments revealed
that LL22NC03-N64E9.1 oncogenic function may partially depend on repressing KLF2.
Taken together, our results suggested that LL22NC03-N64E9.1 confered an oncogenic
function in human CRC and may serve as a candidate prognostic biomarker and
target for new therapies in this deadly disease.