期刊
CELLULAR PHYSIOLOGY AND BIOCHEMISTRY
卷 42, 期 6, 页码 2492-2506出版社
KARGER
DOI: 10.1159/000480212
关键词
Mirna-22-3p; Arteriosclerosis; Human arterial smooth muscle cell; Proliferation; Migration; Neointimal hyperplasia; HMGB1
资金
- National Natural Science Foundation of China [81270378, 81070258, 81370368, 81300237, 81670441]
- Guangdong Province Industry Academia-Research Program [2011B090400117]
- Guangdong Department of Science & Medicine Center [2011A080300002]
- Guangzhou Science and Technology Plan Projects [2011Y2-00022]
- Guangdong Province Medical Science and Technology Research Project [A2016424]
- Guangdong Science and Technology Plan Projects [2017A020215124]
- President Foundation of Nanfang Hospital, Southern Medical University [2016B023]
Background: Aberrant vascular smooth muscle cell (VSMC) proliferation and migration contribute to the development of vascular pathologies, such as atherosclerosis and post angioplasty restenosis. The aim of this study was to determine whether miR-22-3p plays a role in regulating human artery vascular smooth muscle cell (HASMC) function and neointima formation. Methods:Quantitative real-time PCR (qRT-PCR) and fluorescence in situ hybridization (FISH) were used to detect miR-22-3p expression in human arteries. Cell Counting Kit-8 (CCK-8) and EdU assays were performed to assess cell proliferation, and transwell and wound closure assays were performed to assess cell migration. Moreover, luciferase reporter assays were performed to identify the target genes of miR-22-3p. Finally, a rat carotid artery balloon-injury model was used to determine the role of miR-22-3p in neointima formation. Results: MiR-22-3p expression was downregulated in arteriosclerosis obliterans (ASO) arteries compared with normal arteries, as well as in platelet-derived growth factor-BB (PDGF-BB)-stimulated HASMCs compared with control cells. MiR-22-3p overexpression had anti-proliferative and anti-migratory effects and dual-luciferase assay showed that high mobility group box-1 (HMGB1) is a direct target of miR-22-3p in HASMCs. Furthermore, miR-22-3p expression was negatively correlated with HMGB1 expression in ASO tissue specimens. Finally, LV-miR-22-3p-mediated miR-22-3p upregulation significantly suppressed neointimal hyperplasia specifically by reducing HMGB1 expression in vivo. Conclusions: Our results indicate that miR-22-3p is a S. Huang and M. Wang are contributted equally to this work. key molecule in regulating HASMC proliferation and migration by targeting HMGB1 and that miR-22-3p and HMGB1 may be therapeutic targets in the treatment of human ASO. (C) 2017 The Author(s) Published by S Karger AG, Basel
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据