Empagliflozin-Pretreated Mesenchymal Stem Cell-Derived Small Extracellular Vesicles Attenuated Heart Injury

被引：7

作者：

Chi B. ^{[1
,2
]}

Zou A. ^{[1
]}

Mao L. ^{[1
,2
]}

Cai D. ^{[1
,2
]}

Xiao T. ^{[1
]}

Wang Y. ^{[1
]}

Wang Q. ^{[1
]}

Ji Y. ^{[1
]}

Sun L. ^{[1
,2
]}

机构：

[1] Department of Cardiology, The Affiliated Changzhou No.2 People's Hospital of Nanjing Medical University, Jiangsu, Changzhou

[2] Dalian Medical University, Liaoning, Dalian

来源：

Oxidative Medicine and Cellular Longevity | 2023年 / 2023卷

关键词：

Cardiology - Cell culture - Flowcharting - Heart - Rats - RNA - Stem cells;

D O I：

10.1155/2023/7747727

中图分类号：

学科分类号：

摘要：

Objective. Small extracellular vesicles derived from mesenchymal stem cells (MSCs) play important roles in cardiac protection. Studies have shown that the cardiovascular protection of sodium-glucose cotransporter 2 inhibitor (SGLT2i) is independent of its hypoglycemic effect. This study is aimed at investigating whether small extracellular vesicles derived from MSCs pretreated with empagliflozin (EMPA) has a stronger cardioprotective function after myocardial infarction (MI) and to explore the underlying mechanisms. Methods and Results. We evaluated the effects of EMPA on MSCs and the effects of EMPA-pretreated MSCs-derived small extracellular vesicles (EMPA-sEV) on myocardial apoptosis, angiogenesis, and cardiac function after MI in vitro and in vivo. The small extracellular vesicles of control MSCs (MSC-sEV) and EMPA-pretreated MSCs were extracted, respectively. Small extracellular vesicles were cocultured with apoptotic H9c2 cells induced by H2O2 or injected into the infarcted area of the Sprague-Dawley (SD) rat myocardial infarction model. EMPA increased the cell viability, migration ability, and inhibited apoptosis and senescence of MSCs. In vitro, EMPA-sEV inhibited apoptosis of H9c2 cells compared with the control group (MSC-sEV). In the SD rat model of MI, EMPA-sEV inhibited myocardial apoptosis and promoted angiogenesis in the infarct marginal areas compared with the MSC-sEV. Meanwhile, EMPA-sEV reduced infarct size and improved cardiac function. Through small extracellular vesicles (miRNA) sequencing, we found several differentially expressed miRNAs, among which miR-214-3p was significantly elevated in EMPA-sEV. Coculture of miR-214-3p high expression MSC-derived small extracellular vesicles with H9c2 cells produced similar protective effects. In addition, miR-214-3p was found to promote AKT phosphorylation in H9c2 cells. Conclusions. Our data suggest that EMPA-sEV significantly improve cardiac repair after MI by inhibiting myocardial apoptosis. miR-214-3p at least partially mediated the myocardial protection of EMPA-sEV through the AKT signaling pathway. © 2023 Boyu Chi et al.

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