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2018 ; 53
(1
): 21-32
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Long non-coding RNA HOXD-AS1 promotes tumor progression and predicts poor
prognosis in colorectal cancer
#MMPMID29749477
Li X
; Zhao X
; Yang B
; Li Y
; Liu T
; Pang L
; Fan Z
; Ma W
; Liu Z
; Li Z
Int J Oncol
2018[Jul]; 53
(1
): 21-32
PMID29749477
show ga
Mounting evidence has indicated that long non?coding RNAs (lncRNA) serve
important roles in tumor development. Previous studies have demonstrated that the
lncRNA HOXD cluster antisense RNA 1 (HOXD?AS1) promotes tumor progression in
numerous types of cancer; however, the role of HOXD?AS1 in colorectal
cancer (CRC) remains unclear. In the present study, the expression levels of
HOXD?AS1 were detected in CRC tissues and cell lines using quantitative
polymerase chain reaction. In addition, the biological effects of HOXD?AS1 on CRC
were evaluated in vitro by cell counting kit?8, colony formation and Transwell
assays, and in vivo by tumorigenesis and metastasis assays. The results
demonstrated that HOXD?AS1 was upregulated in CRC tissues and cell lines, and
that overexpression of HOXD?AS1 was associated with poor prognosis in patients
with CRC. Furthermore, knockdown of HOXD?AS1 inhibited cell proliferation, cell
invasion, epithelial?mesenchymal transition and stem cell formation in vitro, as
well as tumor growth and metastasis in vivo. Mechanistically, HOXD?AS1 functioned
as a competing endogenous RNA for miR?217. In conclusion, the present study
demonstrated that HOXD?AS1 may promote CRC progression and metastasis by
competing for miR?217. In addition, HOXD?AS1 may be considered an indicator of
prognosis in patients with CRC.