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Protooncogenes/Tumor Supp Gene
Goljan Path Table 8-3 & 4
23
Medical
Post-Graduate
04/20/2008

Additional Medical Flashcards

 


 

Cards

Term
Rb
Definition

13q; retinoblastoma, osteosarcoma

 

fxn: inhibits G1 to S phase

 

assoc cancers: retinoblastoma, osteogenic sarcoma, breast carcinoma

Term
p53
Definition

17p

most human cancers, Li-Fraumeni syndrome
(osteosarcomas, breast cancers, adrenocortical tumors, leukemias (AD, significantly inc risk of malignancy as children or young adults))

gene product = transcription factor

Term
p16
Definition
9p; melanoma
Term
APC
Definition

5q; colorectal cancer (familial polyposis)

 

tumor suppressor gene (loss of fxn -> cancer)

fxn: prevents nuclear transcxn 

Term
NF1
Definition
17q; neurofibromatosis type1
Term
NF2
Definition
22q; neurofibromatosis type 2
Term
DPC
Definition
18q; pancreatic cancer
Term
DCC
Definition
18q; colon cancer
Term
ABL
Definition
fxn: non-receptor tyr kinase activity
mutation: t(9;22)
Cancer: CML
Term
HER (ERBB2)
Definition
fxn: receptor synthesis
mutation: amplification
cancer: Breast carcinoma (marks aggressivity)
Term
MYC
Definition
fxn: nuclear transcription
mutation: t(8;14)
cancer: Burkitt's lymphoma
Term
N-MYC
Definition
fxn: nuclear transcription
mutation: amplification
cancer: neuroblastoma
Term
RAS
Definition
fxn: GTP signal transduction
mutation: point mutation
cancer: leukemia, lung, colon, pancreatic carcinoma
Term
RET
Definition
fxn: receptor synthesis
mutation: point mutation
cancer: MEN - multiple endocrine neoplasia IIa/IIb syndromes
Term
SIS
Definition
fxn: growth factor synthesis
mutation: overexpression
cancer: osteogenic sarcoma, astrocytoma
Term
APC
Definition
fxn: prevents nuclear transcription (degrades catenin, an activator of nuclear transcription)
associated cancer: familial polyposis (colorectal carcinoma)
Term
BRCA1/BRCA2
Definition

fxn: regulates DNA repair associated cancers: breast, ovary, prostate carcinomas

17q, 13q; breast and ovarian cancer

Term
TGF-BETA
Definition
fxn: inhibits G1 to S phase
assoc cancers: pancreatic and colorectal carcinomas
Term
TP53
Definition
fxn: inhibits G1 to S phase, repairs DNA, activates BAX gene (initiates apoptosis)

assoc cancers: lung, colon, breast carcinomas
Li-fraumeni syndrome: breast carcinoma, brain tumors, leukemia, sarcomas
Term
VHL
Definition
fxn: regulates nuclear transcription
assoc cancer: Von Hippel Landau syndrome (cerebellar hemangioblastoma, retinal angioma, renal cell carcinoma (bilateral), pheochromocytoma (bilateral)

chr 3
Term
WT1
Definition
fxn: regulates nuclear transcription
associated cancer: Wilms' tumor
chr 11p
Term
BCL2
Definition
fxn: anti-apoptotic genes
mutation: t(14;18)
cancer: B-cell follicular lymphoma
Term
PTEN
Definition

tumor suppressor gene

mutation 10q23.3 -> Cowden disease/syndrome

 

triad of breast cancer, thyroid cancer, and endometrial cancer; starts with papular mucous membrane lesion ("cobblestone" appearance)

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