Ghrelin stimulates proliferation in a range of cancer cells, including human hepatoma (12), human erythroleukemia (13), adrenocortical carcinoma (14), pancreatic adenocarcinoma (15), colorectal cancer (16), choriocarcinoma (17), prostate cancer (18), breast cancer (19), and endometrial cancer cell lines (20). This evidence concerns the gene GHRL and erythroleukemia.