Mouse Mesenchymal Stem Cell-derived Exosomal MiR-205-5p Modulates LPS-induced Macrophage Polarization and Alleviates Lung Injury by Regulating the USP7/FOXM1 Axis

Overview

Journal Drug Deliv Transl Res

Publisher Springer

Specialty Pharmacology

Date 2025 Feb 25

PMID 40000557

Authors

Yinglu Feng

Min Tang

Haopeng Li

Shanglong Yao

Bo Li

Affiliations

Soon will be listed here.

Abstract

Exosomal microRNAs produced from mesenchymal stem cells (MSCs) are crucial in the management of acute lung injury (ALI). In this work, mMSCs separated from bone marrow were used to extract exosomes (MSC-Exos). MSC-Exos treatment attenuated pathological changes and scores, and edema in ALI mice. Also, MSC-Exos administration modulated the concentrations of inflammatory factors as well as the macrophage polarization both in vivo and in vitro. Upregulation of miR-205-5p in MSC-Exos regulated the macrophage polarization and the contents of inflammatory factors in animal and cell models. MiR-205-5p targeted USP7, and negatively modulated the expression of USP7. USP7 interacted with FOXM1, and reduced the ubiquitination degradation of FOXM1. MSC-derived exosomal miR-205-5p modulated ubiquitination of FOXM1 by targeting USP7. The ameliorative effect of MSC-Exos on the macrophage polarization and the inflammatory factors release was reversed with the overexpression of USP7 in animal and cell models. Collectively, MSC-derived exosomal miR-205-5p regulated lipopolysaccharide (LPS)-induced macrophage polarization and alleviated lung injury by the USP7/FOXM1 axis, which developed a potential target for the treatment of ALI.

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