miR-202 suppresses prostate cancer growth and metastasis by targeting PIK3CA.

Abstract:

:MicroRNA (miR)-202 has been reported to be involved in the regulation of human cancer progression including bladder cancer, non-small cell lung cancer, pancreatic cancer and esophageal squamous cell carcinoma. However, the function of miR-202 in prostate cancer remains largely unknown. The present study demonstrated that miR-202 was downregulated in human prostate cancer tissues and cell lines. And overexpression of miR-202 significantly inhibited the proliferation, migration and invasion of prostate cancer cells, but induced cell apoptosis. Moreover, miR-202 suppressed tumor growth in vivo. Regarding the underlying mechanism, it was revealed that phosphatidylinositol-4,5-bisphosphate 3-kinase catalytic subunit α (PIK3CA) was a target gene of miR-202 in prostate cancer cells. Overexpression of miR-202 inhibited the mRNA and protein levels of PIK3CA in prostate cancer cells. Moreover, overexpression of PIK3CA abolished the inhibitory effects of miR-202 on prostate cancer cell proliferation, migration and invasion in vitro. Taken together, these findings demonstrated that miR-202 served as a tumor suppressor in prostate cancer by directly targeting PIK3CA.

journal_name

Exp Ther Med

authors

Zhang S,Cai J,Xie W,Luo H,Yang F

doi

10.3892/etm.2018.6296

subject

Has Abstract

pub_date

2018-08-01 00:00:00

pages

1499-1504

issue

2

eissn

1792-0981

issn

1792-1015

pii

ETM-0-0-6296

journal_volume

16

pub_type

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