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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Cancer+Biomark
2018 ; 21
(3
): 613-620
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Overexpression of lncRNA ANRIL promoted the proliferation and migration of
prostate cancer cells via regulating let-7a/TGF-?1/ Smad signaling pathway
#MMPMID29278879
Zhao B
; Lu YL
; Yang Y
; Hu LB
; Bai Y
; Li RQ
; Zhang GY
; Li J
; Bi CW
; Yang LB
; Hu C
; Lei YH
; Wang QL
; Liu ZM
Cancer Biomark
2018[Feb]; 21
(3
): 613-620
PMID29278879
show ga
Long non-coding RNAs (lncRNAs) were playing critical roles in tumorigenesis.
However, in prostate cancer, the roles and mechanisms of lncRNAs especially ANRIL
were largely unknown. We investigated the effects of ANRIL on the proliferation
and migration of prostate cancer cells using CCK-8 assay and Transwell migration
assay. Real-time PCR and western blotting assays were used to analyze the levels
of ANRIL, let-7a, TGF-?1, p-Smad2 and p-Smad7. Our results showed that ANRIL was
significantly overexpressed in prostate cancer tissues compared with
corresponding normal tissues. Knockdown of ANRIL significantly inhibited the
proliferation and migration of prostate cancer LNCap, PC3 and DU145 cells.
Knockdown of ANRIL significantly decreased the levels of TGF-?1 and p-Smad2, and
increased the level of p-Smad7 in prostate cancer LNCap cells. We further found
that knockdown of ANRIL significantly enhanced the expression of let-7a, and
rescue experiment found that let-7a inhibitor recovered the suppressive effects
of ANRIL silencing on the proliferation and migration of prostate cancer LNCap,
PC3 and DU145 cells. And let-7a inhibitor recovered the suppressive effects of
ANRIL silencing on the activity of TGF-?1/Smad signaling pathway in prostate
cancer LNCap cells. Taken together, our findings indicated that overexpression of
lncRNA ANRIL promoted the proliferation and migration of prostate cancer cells
via regulating let-7a/TGF-?1/Smad signaling pathway.