Aging
Navigate
Submit an Article
Research Paper|Volume 12, Issue 4|pp 3880—3898

Adipose-derived mesenchymal stem cells-derived exosome-mediated microRNA-342-5p protects endothelial cells against atherosclerosis

Xiaohui Xing1,2, Zhongchen Li2,3, Xin Yang4, Mengyou Li2, Chao Liu2, Yuejiu Pang5, Liyong Zhang2, Xueyuan Li2, Guangcun Liu1, Yilei Xiao2
  • 1Department of Neurosurgery, Shandong Provincial Qianfoshan Hospital, Shandong University, Jinan 250000, Shandong Province, P.R. China
  • 2Department of Neurosurgery, Liaocheng People’s Hospital, Liaocheng 250000, Shandong Province, P.R. China
  • 3Department of Neurosurgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250000, Shandong Province, P.R. China
  • 4Department of Otolaryngology, General Hospital of Central Theater Command of PLA, Wuhan 430070, Hubei, China
  • 5Department of Senile Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan 250000, Shandong Province, P.R. China
* Equal contribution
Received: November 2, 2019Accepted: February 4, 2020Published: February 24, 2020
https://doi.org/10.18632/aging.102857

Copyright © 2020 Xing et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY 3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Abstract

Exosomes are reported to mediate several disease-related microRNAs (miRNAs) to affect the progression of diseases, including atherosclerosis. Here, we aimed to screen the atherosclerosis-associated miRNAs and preliminarily investigate the potential regulatory mechanism of atherosclerosis. First, the lesion model for human umbilical vein endothelial cells (HUVECs) was favorably constructed. Later, through RNA-sequencing and bioinformatics analyses, miR-342-5p was identified in lesion model for HUVECs. MiR-342-5p overexpression or knockdown evidently promoted or inhibited the apoptosis of HUVECs impaired by H2O2. Mechanistically, PPP1R12B was found to have great potential as a target of miR-342-5p in HUVECs impaired by H2O2, supported by RNA-sequencing and a series of bioinformatics analyses. Meanwhile, the effect of miR-342-5p on PPP1R12B expression in HUVECs’ lesion model was explored, revealing that miR-342-5p had an inhibitory role in PPP1R12B expression. Additionally, adipose-derived mesenchymal stem cells (ADSCs) in spindle-like shape and their derived exosomes with 30 to 150 nm diameter were characterized. Furthermore, results showed miR-342-5p was evidently decreased in the presence of ADSCs-derived exosomes. These findings indicated ADSCs-derived exosomes restrained the expression of miR-324-5p in lesion model. Collectively, this work demonstrates an atherosclerosis-associated miR-342-5p and reveals a preliminary possible mechanism in which miR-342-5p mediated by ADSCs-derived exosomes protects endothelial cells against atherosclerosis.