Oncogenes, tumor suppressor genes, and tumor markers Flashcards
What is the function of VHL?
Inhibits hypoxia-inducible factor 1a
Serine-threonine kinase
BRAF
What is p53 normal function?
Transcription factor for p21, which inhibits G1–>S
In which cancer is DCC mutated and what is the gene product?
CRC
DCC (deleted in colon cancer)
In which cancer is p16 mutated and what is the gene product?
Melanoma
Cyclin-dependent kinase inhibitor 2A
Hairy cell leukemia
TRAP
Inhibits HIF1a
VHL
In what cancer is BRAF mutated and what is the gene product?
Melanoma
Seronine-threonine kinase
Cytokine receptor
c-kit
In which cancer is bcl-2 mutated and what is the gene product?
Follicular and undifferentiated carcinomas
In which cancer is BCR-ABL mutated and what is the gene product?
CML, ALL
Tyrosine kinase
AFP
HCC, yolk sac tumor, mixed germ cell tumors, testicular cancer, hepatoblastoma
Neuroblastoma
N-myc
Colon, lung, and pancreatic cancer
RAS
Calcitonin
Medullary carcinoma of the thyroid
In which cancer is NF1 mutated and what is the gene product?
Neurofibromatosis 1
RAS GTPase activating protein (neurofibromin)
TRAP
Hairy cell leukemia
Tyrosine kinases
BCR-ABL
HER2/neu
ret
GTPase
ras
Breast, ovarian, gastric cancer
HER2/neu
Follicular and undifferentiated lymphomas
bcl-2
MEN 2A and 2B
RET
In which cancer is ret mutated and what is the gene product?
MEN 2A and 2B
Tyrosine kinase
In which cancers is Rb mutated and what is the gene product?
Retinoblastoma and osteosarcoma
Rb protein inhibits E2F so blocks G1–>S
Anti-apoptotic molecule
bcl-2
CA-125
Ovarian cancer
Tumor marker for medullary carcinoma of the thyroid
Calcitonin
S-100
Neural tumors, Schwannoma, Langerhans histiocytosis, melanoma
Lung cancer
L-myc
CA-15-3/CA-27-29
Breast cancer
Transcription factors
c-myc
N-myc
L-myc
In which cancer is NF2 mutated and what is the gene product?
Neurofibromatosis 2
Merlin (schwannomin) protein
Burkitt lymphoma
c-myc
CA-19-9
Pancreatic cancer
Tumor marker for breast cancer
CA-15-3/CA-27-29
DNA repair proteins
BRCA1 and BRCA2
In which cancer is c-kit mutated and what is the gene product?
GIST
Cytokine receptor for stem cell factor
CML, ALL
BCR-ABL
AFP + ß-hCG
Mixed germ cell tumor
In which cancer is CPD4/SMAD4 mutated and what is the gene product?
Pancreatic cancer
DPC (deleted in pancreatic cancer)
GIST
c-kit
In which cancer is c-myc mutated and what is the gene product?
Burkitt lymphoma
Transcription factor
Colon cancer
ras (GTPase)
DCC (TSG)
Tumor marker for ovarian cancer
CA-125
Two tumor suppressor genes which normally inhibit G1–>S
p53 (transcription factor for p21)
Rb (inhibits E2F)
ß-hCG
Choriocarcinoma, hydatidiform mole, testicular cancer
Pancreatic cancer
ras (GTPase)
CPD4/SMAD4 (DPC)
Tumor marker for pancreatic cancer
CA-19-9
In which cancers is HER2/neu mutated and what is the gene product?
Breast, ovarian, and gastric cancers
Tyrosine kinase
Melanoma
BRAF (oncogene) and p16 (TSG)
Breast, prostate, endometrial cancer
PTEN
In which cancer is N-myc mutated and what is the gene product?
Neuroblastoma
Transcription factor
In which cancers is ras mutated and what is the gene product?
Colon, lung, pancreatic cancer
GTPase
In which cancer is L-myc mutated and what is the gene product?
Lung cancer
Transcription factor
CEA
CRC, pancreatic cancer, medullary carcinoma of the thyroid, gastric cancer, breast cancer