The following genes were overexpressed in various tumors: CCND1 in colorectal and renal cancers, and sarcoma; CCNE1 in colorectal, lung, stomach, esophagus, head and neck, uterine and ovarian cancers, and sarcoma; and CDKN2A in lung, uterine, and ovarian cancers. This evidence concerns the gene CCNE1 and ovarian cancer.