MKI67 and endometriosis: Administration with anti-mouse IL-10 neutralizing Abs or TGF-β receptor antagonist (SB431542) also limited the growth of endometriosis lesions (Figure 8e) and downregulated the expression of Ki67, MMP2 and Cox-2 by ESCs and endometrial glandular epithelial cells (EECs) in the endometriosis lesions (Figure 8f).