Mesenchymal stem cell-derived extracellular vesicles ameliorate heat stroke-induced hippocampal injury and modulate VIM-AS1-associated miR-34a-5p/Per2 signaling

Background

Central nervous system (CNS) injury is a major determinant of mortality and persistent disability after heat stroke. Mesenchymal stromal/stem cell-derived extracellular vesicles (MSC-EVs) are candidate cell-free immunomodulatory therapeutics, but their effects and molecular correlates in heat stroke-associated brain injury remain incompletely defined. We investigated whether MSC-EVs attenuate hippocampal inflammation and alter microglial phenotype-associated markers after heat stroke.