B/07 Flashcards
What does EGFR stand for?
Epidermal growth factor receptor
What type of receptor is EGFR?
receptor tyrosine kinase
What happens to EGFR after point mutation?
dimerization possible even without signal, which activates the pathway
What pathways are activated when EGFR is activated? (2)
- MAPK
- STAT
Results of EGFR pathway activation
- increase transcription
- cell proliferation
- progress in the cell cycle
What cancer is caused by EGFR mutation?
Glioma
What is the most common BLC2 change?
t(14;18) - region from X18 moves to X14
What is the pathway activated by mitochondria for apoptosis?
caspase pathway
What happens in BCL2 oncogene transformation?
Overexpression of BCL2 blocks the BAX and BAK dimers and thus apoptosis
Which protoooncogenes fuse to transform?
BCR and ABL genes
What change is in the ABL/BCR fusion?
t(9;22)
What pathways does the BCR-ABL oncoprotein activate? (4)
- JAK
- RAS
- SRC
- P13K
Results of the BCR-ABL oncoprotein? (3)
- cell proliferation
- increase cell motility
- inhibition of apoptosis
What cancer does BCR/ABL cause?
CML (chronic myeloid leukemia)
What cancer does BCL2 cause?
Follicular lymphoma