MicroRNA-532-5p protects against atherosclerosis through inhibiting vascular smooth muscle cell proliferation and migration.

Abstract

BACKGROUND:

The present study aimed to explore the expression and clinical value of miR-532-5p in atherosclerosis (AS) patients, and analyze its regulating effect on biological behaviors of vascular smooth muscle cells (VSMCs).

METHODS:

A total of 103 AS patients and 77 healthy controls were included. The expression level of miR-532-5p was measured using quantitative real-time PCR (qRT-PCR). A receiver operating characteristic (ROC) analysis was counted to assess the diagnostic value of miR-532-5p in AS. CCK-8 and Transwell assay were used to detect the role of miR-532-5p in VSMCs proliferation and migration.

RESULTS:

MiR-532-5p was downregulated in AS patients compared with that in healthy controls. Serum miR-532-5p was inversely related to the carotid intima-media thickness (CIMT) in AS patients. A ROC curve was conducted with an area under the curve (AUC) of 0.897, with high sensitivity and specificity. Overexpression of miR-532-5p inhibited cell proliferation and migration in VSMCs, whereas miR-532-5p downregulation had a reverse effect.

CONCLUSIONS:

Decreased expression of miR-532-5p might be a potential diagnostic biomarker for AS. Overexpression of miR-532-5p inhibits the proliferation and migration of VSMCs. The present results indicate a therapeutic potential of miR-532-5p for AS.

• Authors: Huijuan Sun, Shanshan Wu, Bin Sun
• Journal: Cardiovascular diagnosis and therapy (Cardiovasc Diagn Ther) Vol. 10 Issue 3 Pg. 481-489 (Jun 2020) ISSN: 2223-3652 [Print] China
• PMID: 32695627 (Publication Type: Journal Article)
• Copyright: 2020 Cardiovascular Diagnosis and Therapy. All rights reserved.