Examples of Inherited Predisposition to Cancer Gene Inherited predisposition Inherited cancer syndromes (AD) RB Retinoblastoma p53 Li-Fraumeni syndrome (various tumors) p16/INK4A Melanoma APC Familial adenomatous polyposis/colon cancer NF1, NF2 Neurofibromatosis 1 and 2 BRCA1, BRCA2 Breast and ovarian tumors MEN1, RET Multiple endocrine neoplasia 1 and 2 MSH2, MLH1, MSH6 Hereditary nonpolyposis colon cancer PTCH Nevoid basal cell carcinoma syndrome PTEN Cowden syndrome (epithelial cancers) LKB1 Peutz-Jegher syndrome (epithelial cancers) VHL Renal cell carcinomas Inherited syndromes of defective DNA repair (AR) Xeroderma pigmentosum Ataxia-telangiectasia Bloom syndrome Fanconi anemia Familial cancers Familial clustering of cases, but role of inherited predisposition not clear for each individual Breast cancer Ovarian cancer Pancreatic cancer Selected oncogenes, their modes of activation, and associated human tumors Category Protooncogene Mode of activation Growth factors PDGF-β chain SIS (PBGFB) Overexpression Fibroblast growth factors HST1 INT2 (FGF3) Overexpression Amplification TGF-α TGFA Overexpression HGF Growth factor receptors EGF-receptor family FMS-like tyrosine kinase 3 Receptor for neurotrophic factors HGF Overexpression ERBB1 (EGFR), ERRB2 FLT3 RET Overexpression Amplification Point mutation Point mutation Associated human tumor Astrocytoma Osteosarcoma Stomach CA Bladder CA Breast CA Melanoma Astrocytomas Hepatocellular carcinomas Thyroid CA Squamous cell carcinoma of lung, gliomas Breast and ovarian CA Leukemia MEN2A and B, familial medullary thyroid carcinomas Gliomas, leukemias GI stromal tumors, seminomas, leukemias PDGF receptor PDGFRB Receptor for stem cell (steel) KIT factor Proteins involved in signal transduction GTP-binding KRAS HRAS NRAS Nonreceptor tyrosine kinase ABL Overexpression, translocation Point mutation RAS signal transduction WNT signal transduction BRAF β-catenin Point mutation Point mutation Overexpression C-MYC N-MYC L-MYC Translocation Amplification Amplification Burkitt lymphoma Neuroblastoma, small-cell carcinoma of lung Small-cell carcinoma of lung Cell cycle regulators Cyclins Cyclin D Cyclin dependent kinase Cyclin E CDK4 Translocation Amplification Overexpression Amplification or point mutation Mantle cell lymphoma Breast and esophageal cancers Breast cancer Glioblastoma, melanoma, sarcoma Nuclear-regulatory proteins Transcriptional activators Point mutation Point mutation Point mutation Translocation Colon, lung, pancreatic tumors Bladder and kidney tumors Melanomas, hematologic malignancies Chronic myeloid leukemia Acute lymphoblastic leukemia Melanomas Hepatoblastomas, Hepatocellular carcinoma Selected tumor suppressor genes involved in human neoplasms Subcellular location Gene Function Cell surface Inner aspect of plasma membrane TGF-β receptor E-cadherin NF-1 Cytoskeleton NF-2 Cytosol APC/β-catenin Nucleus PTEN SMAD2 & 4 RB p53 Growth inhibition Cell adhesion Inhibition of RAS signal transduction and of p21 cell-cycle inhibitor Cytoskeletal stability Inhibition of signal transduction PI-3 kinase signal transduction TGF-β signal transduction Regulation of cell cycle BRCA1 & 2 Cell-cycle arrest & apoptosis in response to DNA damage Nuclear txn Regulation of cell cycle by inhibition of cyclindependent kinases DNA repair KLF6 Txn factor WT-1 p16 (INK4a) Tumors assoc. w/ somatic mutations Carcinomas of colon Carcinoma of stomach Neuroblastomas Tumors assoc. w/ inherited mutations Unknown Familial gastric CA Neurofibromatosis type 1 and sarcomas Schwannomas and meningiomas Neurofibromatosis type 2, acoustic schwannomas and meningiomas Familial adenomatous polyposis coli/colon cancer Unknown Unknown Retinoblastomas, osteosarcoma Carcinomas of stomach, colon, pancreas; melanoma Endometrial and prostate cancers Colon, pancreas tumors Retinoblastoma; osteosarcoma carcinomas of breast, colon, lung Most human cancers Wilms tumor Pancreatic, breast, and esophageal cancers Unknown Carcinomas of female breast and ovary; carcinomas of male breast Unknown Prostate [More boxes to add from BioChem etc…] Gene Function Li-Fraumeni syndrome; multiple carcinomas & sarcomas Wilms tumor Malignant melanoma Tumors assoc.