PTEN and stroke disorder: Xin et al. also reported that MSC-EVs enriched with the miR-17-92 cluster enhanced oligodendrogenesis neurogenesis neural plasticity and functional recovery after stroke possibly by suppressing PTEN and subsequently by increasing the phosphorylation of proteins downstream of PTEN including of the protein kinase B/mechanistic target of rapamycin/glycogen synthase kinase 3β signaling pathway [58].