SRP308482 PRJNA705354 GSE167863 Small extracellular vesicles derived from interferon-? pre-conditioned mesenchymal stromal cell(MSC)s effectively treat liver fibrosis A novel therapeutic approach of IFN-?-treated mesenchymal stromal cell-produced extracellular vesicles effectively treated a cirrhosis model. Overall design: the miRNAs of small extracellular vesicles derived from MSCs (sEVs) and interferon-? (IFN-?) pre-conditioned MSCs (?-sEVs) GSE167863 pubmed 33785758