By analyzing three ovarian cancer cell lines, HEY C2, SK-OV-3, and A2780, and three MDR sublines of A2780 selected against cisplatin, A2780/CP70, A2780/MCP2, and A2780/MCP3, ABCA1 has been found to be expressed in A2780/MCP2 and A2780/MCP3 cells but downregulated in A2780 and A2780/CP70 cells [164]. The gene discussed is CCL7; the disease is ovarian cancer.