Oncology 2 Flashcards
What are trageted therapy?
- They inhibi specific pathways that are actiavted in cancer
Targeted therapies have much more fewer ADRs than chemotherapies hwich are poisions. TRUE OR FALSE?
TRUE
What can cause cancer?
- External mutagens e.g UV light and smoking
- Internal mutagens e.g the enviornment
- Intrisic errors - which are errors in the DNA replications
- All these can lead to mutations and hence cancer
Germline mutations are inherited. TRUE OR FALSE?
TRUE
somatic mutations are individualised, but can be passed on during cell division. TRUE OR FALSE?
TRUE
What genes are affected in cancer?
- Oncogenes and tumour supressor genes
90% of cancer genes are dominant, 10% can be reccessive. TRUE OR FALSE?
TRUE
What does the Knudoson 2 hit hypothesis say?
- You need mutations to occur at both reccesive genes to have cancer
mutated cells (driver mutations) that lead to formation of tumours have a seletive advantage over the mutated cells that did not benefit from the mutation. TRUE OR FALSE?
TRUE
What are passenger mutations?
- They have a null effect (neither advs or disadv), but they also be seen with driver mutations but in fewer numbers
You can get resistance before treatment and resistance after treatment? TRUE OR FALSE?
TRUE
What kinase inhibitor drug was first shown to have efficacy in any cancer?
- Imitanib
Nilotinib is 30 times more potent than imitanib. TRUE OR FLASE/
TRUE
What are the indications of imatinib, nilotinib and desatinib?
- All indicated for chronic myeloid leukemia
- Imatinib is indicated for GIST
What are the ADRs for imatinib, nilotinib and desatinib?
- Cause myelosupression
- Nelotinib causes prolong QT interval
Chronic myeloid leukemia are primarily driven by BcrABl. treu or false?
true
What do proto-oncogenes do?
- Regulate critical cancer relevant pathways
Activation sof proto-oncogenes lead to the cancerous phenotype. true or flase?
true
proto-oncogenes are activated by somatic mutations. TRUE OR FLASE?
TRUE
Tumour supressors are ativated in cancer. TRUE OR FLASE?
FALSE
Drug targets are the regulators of the hallmark of cancer. TRUE OR FALSE?
TRUE
Cetuximab recognises the EGF-R
Trastuzumab recognises the HER2 receptor
True or flase?
true
-Gefitinib inhibits EGF-R
-Lapatinib inhibits EGF-R and HER2
TRUE OR FALSE?
TRUE