Overexpression of lncRNA ANRIL promoted the proliferation and migration of prostate cancer cells via regulating let-7a/TGF-β1/Smad signaling pathway

被引：90
|
作者：
Zhao, Bin [1 ,2 ]
Lu, Yu-Lin [3 ]
Yang, Yong [1 ,2 ]
Hu, Li-Bing [1 ,2 ]
Bai, Yu [1 ,2 ]
Li, Rui-Qian [1 ,2 ]
Zhang, Guo-Ying [1 ,2 ]
Li, Jun [1 ,2 ]
Bi, Cheng-Wei [1 ,2 ]
Yang, Li-Bo [1 ,2 ]
Hu, Chen [1 ,2 ]
Lei, Yong-Hong [1 ,2 ]
Wang, Qi-Lin [1 ,2 ]
Liu, Zhi-Min [1 ,2 ]
机构：
[1] Kunming Med Univ, Dept Urol, Yunnan Tumor Hosp, Kunming, Yunnan, Peoples R China
[2] Kunming Med Univ, Affiliated Hosp 3, Kunming, Yunnan, Peoples R China
[3] Kunming Med Univ, Fac Nursing, Kunming, Yunnan, Peoples R China
来源：
CANCER BIOMARKERS | 2018年 / 21卷 / 03期
关键词：
lncRNA ANRIL; prostate cancer; let-7a; TGF-beta 1/Smad signaling pathway; NONCODING RNA ANRIL;
D O I：
10.3233/CBM-170683
中图分类号：
R73 [肿瘤学];
学科分类号：
100214 ;
摘要：
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-beta 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-beta 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 let7a 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-beta 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-beta 1/Smad signaling pathway.
引用
收藏
页码：613 / 620
页数：8
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