As shown in Figures 3(a)–3(c), endometriotic PF enhanced the expression of collagen I, α-SMA, fibronectin, and CTGF in endometrial MSCs more significantly than control PF, indicating that endometriotic PF could strongly induce endometrial MSCs to differentiate into myofibroblasts. This evidence concerns the gene CCN2 and pemphigus foliaceus.