MiRNA-132/212 Encapsulated by Adipose Tissue-derived Exosomes Worsen Atherosclerosis Progression

Overview

Journal Cardiovasc Diabetol

Publisher Biomed Central

Specialties Cardiology & Vascular Diseases
Endocrinology

Date 2024 Sep 9

PMID 39252021

Authors

Bei Guo

Tong-Tian Zhuang

Chang-Chun Li

Fuxingzi Li

Su-Kang Shan

Ming-Hui Zheng

Qiu-Shuang Xu

Yi Wang

Li-Min Lei

Ke-Xin Tang

Wenlu Ouyang

Jia-Yue Duan

Yun-Yun Wu

Ye-Chi Cao

Muhammad Hasnain Ehsan Ullah

Zhi-Ang Zhou

Xiao Lin

Feng Wu

Feng Xu

Xiao-Bo Liao

Ling-Qing Yuan

Affiliations

Soon will be listed here.

Abstract

Background: Visceral adipose tissue in individuals with obesity is an independent cardiovascular risk indicator. However, it remains unclear whether adipose tissue influences common cardiovascular diseases, such as atherosclerosis, through its secreted exosomes.

Methods: The exosomes secreted by adipose tissue from diet-induced obesity mice were isolated to examine their impact on the progression of atherosclerosis and the associated mechanism. Endothelial apoptosis and the proliferation and migration of vascular smooth muscle cells (VSMCs) within the atherosclerotic plaque were evaluated. Statistical significance was analyzed using GraphPad Prism 9.0 with appropriate statistical tests.

Results: We demonstrate that adipose tissue-derived exosomes (AT-EX) exacerbate atherosclerosis progression by promoting endothelial apoptosis, proliferation, and migration of VSMCs within the plaque in vivo. MicroRNA-132/212 (miR-132/212) was detected within AT-EX cargo. Mechanistically, miR-132/212-enriched AT-EX exacerbates palmitate acid-induced endothelial apoptosis via targeting G protein subunit alpha 12 and enhances platelet-derived growth factor type BB-induced VSMC proliferation and migration by targeting phosphatase and tensin homolog in vitro. Importantly, melatonin decreases exosomal miR-132/212 levels, thereby mitigating the pro-atherosclerotic impact of AT-EX.

Conclusion: These data uncover the pathological mechanism by which adipose tissue-derived exosomes regulate the progression of atherosclerosis and identify miR-132/212 as potential diagnostic and therapeutic targets for atherosclerosis.

Citing Articles

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