Cancer Pharmacogenomics Flashcards
What is the origin of the mutated cell if it is from the germ-line?
Germ cells
What is the origin of mutated cells if they are somatic?
Tumor
What is the sampling method for germ-line cancers?
Blood sampling
Buccal swab
What is the sampling method for somatic cancers?
Tumor biopsy
How can a liquid biopsy be used?
Early intervention
Localized disease
Metastatic disease
Refractory disease
What are the pieces within a blood biopsy that are being detected?
Circulating tumor cells
cfDNA
What dose the cfDNA show?
Size and vascularity of tumor
How does a liquid biopsy help with early intervention?
Diagnose the cancer earlier through screening
How is a liquid biopsy involved in localized disease?
Determine the risk of recurrence after treatment
How is liquid biopsy used for metastatic disease?
Determine treatment selection based on the presence of biomarkers
How is a liquid biopsy used for refractory diseases?
Determine mechanisms of resistance, disease progression and identification of newer treatments
What drugs target HER2?
Trastuzumab
Pertuzumab
Lapatinib
What is lapatinib?
TKI
Which drugs target EGFR?
Cetuximab Panitumumab Gefatinib Erlotinib Lapatinib
Which EGFR drugs are intracellular?
Gefatinib
Erlotinib
Lapatinib
What are RFs for EGFR mutations?
Female
East Asian descent
Non-smokers
Adenocarcinomas
What new drug is approved for T790M-mediated EGFR TKI resistance?
Osimertinib
Cutaneous melanomas have mutations in what?
BRAF
What drug is used to target BRAF mutations?
Vemurafenib
What anti-cancer medication is metabolized by 2D6?
Tamoxifen
What drugs are potent inhibitors of 2D6?
Fluoxetine
Paroxtine
Bupropion
What are moderate inhibitors of 2D6?
Sertraline Duloxetine Cimetidine Amiodarone Haloperidol Diphenhydramine Trazodone
Which tamoxifen allele has the least enzyme activity of 2D6?
*4
What are the most common 2D6 alleles?
- 4
- 5
- 6
- 10
- 17
What is the most common 2D6 allele for caucasians?
*4
What is the most common 2D6 allele for AAs?
*17
What is the most common a 2D6 allele for Japanese?
*10
Which enzyme is involved in the metabolism of mercaptopurine?
TPMT
What are the most common allele variations of TPMT
- 2
* 3
When enzyme metabolizes irinotecan?
UGT1A1
What is the most common allele that reduces glucuronidation in UGT1A1?
*28
What toxicity is more common if a patient is on irinotecan and has a 28/28 genotype?
Neutropenia
What is fluorouracil broken down by?
DPYD
What is the most frequent allele for DPYD?
*2A