H19 Knockdown Suppresses Proliferation and Induces Apoptosis by Regulating miR-130a-3p/SATB1 in Breast Cancer Cells.

Abstract:

Purpose:Breast cancer (BC) is the most common cancer in women. Emerging evidence has demonstrated that lncRNAs play an important role in BC. The objective of this study was to investigate the impact of the long non-coding RNA (lncRNA), H19/miRNA-130a-3P/special AT-rich sequence-binding protein-1 (SATB1) axis on BC progression. Materials and Methods:Expression of lncRNA and RNA was quantified via RT-qPCR. CCK-8, colony formation, wound healing, transwell, and flow cytometric analyses were used to analyze the proliferation, migration, invasion and apoptosis of cells. A dual-luciferase reporter assay and a RNA immunoprecipitation (RIP) assay were used to assess molecular binding. Protein levels were measured by Western blotting. The function of the lncRNA H19 (hereafter referred to as H19) was examined by xenotransplantation. Results:We demonstrated that H19 expression was higher in cancer tissues and cancer cell lines than in adjacent non-tumor tissues and normal cell lines, respectively. H19 silencing inhibited the proliferation, migration and invasion of BC cells, and induced apoptosis. In addition, H19 directly bound to miR-130a-3p and downregulated its expression. We further demonstrated that H19 sponged miRNA-130a-3p, which resulted in SATB1 upregulation, thus promoting BC progression. Silencing of H19 substantially suppressed BC tumorigenesis in vivo. Conclusion:Our data uncovered a novel mechanism of BC progression based on the H19-miR-130a-3p-SATB1 axis.

journal_name

Onco Targets Ther

journal_title

OncoTargets and therapy

authors

Zhong G,Lin Y,Wang X,Wang K,Liu J,Wei W

doi

10.2147/OTT.S280142

subject

Has Abstract

pub_date

2020-12-07 00:00:00

pages

12501-12513

issn

1178-6930

pii

280142

journal_volume

13

pub_type

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