MSCs collected from swine subcutaneous abdominal fat tissue (5–10g) were digested in collagenase-H, filtered, and cultured for 3 weeks in advanced MEM medium (Gibco/Invitrogen) supplemented with 5% platelet lysate(Crespo-Diaz et al., 2011 (link)). Cellular phenotype was confirmed in both groups by cell-surface marker expression(Zhu et al., 2016 (link)), and the third passage preserved in Gibco Cell Culture Freezing Medium for subsequent studies.