Chen D, Xu L, Wu J, Liang H, Liang Y, Liu G. Downregulating miR-96-5p promotes proliferation, migration, and invasion, and inhibits apoptosis in human trophoblast cells via targeting DDAH1.
Reprod Biol 2021;
21:100474. [PMID:
33360846 DOI:
10.1016/j.repbio.2020.100474]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 11/12/2020] [Accepted: 12/12/2020] [Indexed: 02/07/2023]
Abstract
Several microRNAs (miRs) have been found to have modulating effects on trophoblast functions, yet the biological role and function of miR-96-5p and its interaction with Dimethylarginine Dimethylaminohydrolase 1 (DDAH1) remained poorly understood. After lentivirus transfection, the proliferation, migration, invasion and apoptosis of human trophoblast cells HTR-8/SVneo and SGHPL-4 were determined by Cell Counting Kit-8 (CCK-8) assay, scratch assay, Transwell, and flow cytometry, respectively. Relative expressions of miR-96-5p, DDAH1, and apoptosis-related proteins (B-cell lymphoma 2, Bcl-2; Bcl-2-associated X protein, Bax; cleaved (C) caspase-3) were detected via quantitative real-time polymerase chain reaction (qRT-PCR) and Western blot as needed. The target gene of miR-96-5p and their potential binding sites were predicted using TargetScan V7.2 and confirmed by dual-luciferase reporter assay. MiR-96-5p downregulation promoted proliferation, migration and invasion, suppressed apoptosis, and decreased miR-96-5p expression in trophoblast cells in vitro, while miR-96-5p upregulation had the opposite effects. DDAH1 was recognized as a target gene of miR-96-5p, and silencing DDAH1 reversed the effects of miR-96-5p downregulation on the proliferation, migration, invasion and apoptosis of trophoblast cells as well as the expressions of apoptosis-related proteins. MiR-96-5p downregulation promotes proliferation, migration, and invasion, and suppresses apoptosis in human trophoblast cells in vitro via targeting DDAH1, which provides evidence for the implication of miR-96-5p in the functional modulation of trophoblasts.
Collapse