Chemotherapy Flashcards
(28 cards)
At what phase of cell cycle do Podophyllotoxins act on?
S (DNA synthesis) and G2 (synthesis of components needed for mitosis)
At what phase of the cell cycle does Bleomycin act on?
G2 (synthesis of components for mitosis)
At what phase of the cell cycle do antimetabolites act on?
S phase (DNA synthesis)
What alkylating agent is associated with hemorrhagic cystitis?
Cyclophosphamide (via Acrolein)
Treatment: Mesna (mercaptoethanesulfonate)
What are the major side effects of Busulfan?
Adrenal insufficiency, pulmonary fibrosis, and skin pigmentation
Used for CML
For which type of CA are Carmustine (BCNU) and Lomustine (CCNU) used?
Brain tumors (highly lipid soluble)
At which phase of the cell cycle do antimetabolites act on?
S phase of the cell cycle
What is an example of a folic acid antagonist?
Methotrexate
What are examples of purine antimetabolites?
Mercaptopurine, Thioguanine
What are examples of pyrimidine antimetabolites?
Fluorouracil, Cytarabine, Gemcitabine
Antidote for toxic effect of Methrotrexate
Leucovorin (Folinic acid)
Which pyrimidine analogue is the most specific for the S phase of the cell cycle?
Cytarabine
MOA of Vinblastine and Vincristine
Block the formation of mitotic spindle by preventing the assembly of tubulin dimers into microtubules
At which phase of the cell cycle do Vinblastine and Vincristine act on?
M phase
At which phase of the cell cycle do Etoposide and Teniposide act on?
Late S and early G2 phase
What is the mode of action of Etoposide and Teniposide
Increase degradation of DNA, possibly via interaction with topoisomerase II
MOA of Paclitaxel and Docetaxel?
Prevent microtubule disassembly into tubulin monomers
Given IV and used in advanced breast and ovarian cancer
Chemotherapeutic of choice for acute leukemia
Daunorubicin
SE of Doxorubicin
Cardiotoxicity
Most common SE of Bleomycin
Pulmonary dysfunction
Where is Dactinomycin used?
Melanoma and Wilm’s tumor
Most commonly used glucocorticoid in cancer therapy
Prednisone
Flutamide acts on which type of cancer?
Prostatic cancer
Imatinib is used for which cancers?
CML and GIST