L23 Chemotherapy and Radiation therapy Flashcards
Cisplatin
Cross link DNA breaks
Inhibits DNA synthesis
Effective in S phase
Taxanes
binds to microTubules
Inhibits spindle apparatus
Increases stability
Mitotic inhibitor
Effective in G2/M Phase
Bleomycin
Radiomimetic drug
G2 phase
Platinum drugs
UV Mimetics
Topotecan Irinotecan
Topoisomerase Inhibitors
Antibiotics: Dactinomycin/Doxorubicin
DNA/RNA synthesis inhibitors
Ifosfamide
Cell Cycle non-specific alkyl for H
Antimetabolites
Analogues of normal metabolism
hydroxyurea
Injected in vivo for cell cycle synchrony
Cetuximab
Blocks EGFR receptor
TK phosphorylation - inhibits
FTI: Farnesyl transferase inhibitors*
Inhibit the function of ras
Avastin
mab Targets VEGF
Mitomycin C
undergoes bioreduction
Increase activity under hypoxic conditions
Drug resistance*
common: mdr gene
can be reversed with verapamil
are still radiosensitive
mdr gene
these cells are not cross resistant to radiation
chemo vs radiation
combo of RT and chemo
: Spatial cooperation
Different target cells
decrease tumor burden
taxol and gamma rays
Angiostatin
Endothelial cell function inhibitor
interaction of chemo and radiation therapy
EGFR inhibitors
Cetuximab
Transtuzumab