CDK4 and neoplasm: The panel included 22 genes involved in tumor progression, cell adhesion, cell cycle control, and cell signaling: Apaf-1, APC, cdk4, c-Kit, cyclin D1, E-cadherin, MDM2, MLH-1, MSH-2, p14ARF, p15INK4b, p16INK4a, p21cip1, p27kip1, p53, p73, p85, PDGFRα, p60src, PTEN, pAKT, and β-catenin.