ACTA1 and endometriosis: We recently found that ectopic endometrial MSCs expressed elevated fibrotic proteins, including collagen I, α-smooth muscle actin (α-SMA), fibronectin, and connective tissue growth factor (CTGF), compared with eutopic endometrial MSCs from women with or without endometriosis and that endometriotic peritoneal fluid promotes myofibroblast differentiation of endometrial MSCs (In Press).