CXCR4, CXCR7 and CXCL12 expression was evaluated in human ovarian cancer cells A2780, CAOV3, MDAH2274, TOV112D, SKOV3, OVCAR3, OVCAR4, OVCAR5, OVCAR8 and IGROV1 (Fig 1A and S1A Fig). The gene discussed is CXCR4; the disease is ovarian carcinoma.