MiR-9-5p enhances the secretion of immunomodulatory factors and improves the migratory and proliferative capacities of hUC-MSCs. Overexpression of miR-9-5p promotes in vivo homing of hUC-MSCs, which mitigate cerebral injury and exert neuroprotective and reparative effects through dual mechanisms: modulating immune responses and providing neurotrophic support. Furthermore, hUC-MSCs significantly reduce cerebral infarct volume in hypoxic-ischemic brain damage (HIBD) rats and downregulate levels of apoptotic proteins (Beclin-2 and Caspase-3) in brain tissue, demonstrating potent cerebroprotective effects.
Li et al. (Sun,) studied this question.