What question did this study set out to answer?

The aim is to investigate the protective effects of hypoxia-preconditioned BMSC-derived exosomes on acute lung injury caused by LPS.

February 13, 2026Open Access

Hypoxia-preconditioned mesenchymal stromal cell–derived exosomes attenuate LPS-induced acute lung injury and early epithelial remodeling in mice: evidence for a miR-486a-5p–Skp2–GATA4 axis

Key Points

The aim is to investigate the protective effects of hypoxia-preconditioned BMSC-derived exosomes on acute lung injury caused by LPS.
Utilized hypoxia-preconditioned bone marrow-derived mesenchymal stromal cell exosomes
Induced acute lung injury in mice using LPS
Analyzed the role of miR-486a-5p/Skp2/GATA4 axis
Exosomes significantly reduced LPS-induced acute lung injury
Decreased early epithelial remodeling observed
Validated the involvement of the miR-486a-5p/Skp2/GATA4 axis in the therapeutic effect

Abstract

Hypoxia-preconditioned bone marrow-derived mesenchymal stromal cell (BMSC) exosomes demonstrate significant potential to alleviate LPS-induced acute injury and early epithelial remodeling by engaging a miR-486a-5p/Skp2/GATA4 working model, offering a proof-of-concept therapeutic strategy for ALI.

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Hypoxia-preconditioned mesenchymal stromal cell–derived exosomes attenuate LPS-induced acute lung injury and early epithelial remodeling in mice: evidence for a miR-486a-5p–Skp2–GATA4 axis

Key Points

Abstract

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