The meta-analysis supports the therapeutic potential of MSC-EVs in the treatment of keloids and hypertrophic scars, as demonstrated in preclinical animal models. MSC-EV therapy has been shown to downregulate the dimensions of hypertrophic scars and keloids, inhibit collagen deposition, and reduce migration and proliferation of skin fibroblasts. Additionally, MSC-EVs suppress the expression of TGF-β1 and α-SMA in scar tissue. These findings highlight MSC-EVs as a promising therapeutic approach for managing keloids and hypertrophic scars.
Zhai et al. (Wed,) studied this question.