Cancer Immunotherapy Flashcards
Cancer Immunosurveillance
decreases cancer rates through inhibition of carcinogenesis and maintaing of cellular homeostasis
Cancer can escape immunosurveillance by?
expression of immune checkpoint molecules (lowers MHC 1 expression0
Cancer Immunotherapy is
biological therapy
helps restore immune system and does NOT target cancer cells directly
Checkpoint Inhibitors?
takes brakes off immune system and attacks cancer cells
are all antibodies
Chimeric antigen T-cell therapy
Cellular Immunotherapy
Cytokines
IFNa and IL-2
IFN a use?
completely resected high risk melanoma and refractory cancers
IFN-a does what?
activates CD8 T cells and reduces Treg infiltration into tumor proliferation
AE: flu like
IL2 use?
metastatic renal cell cancer and melanoma
IL2 AE?
flu like symptoms
high doses=capillary leak syndrome or vascular leak —>low BP/swelling
Give=Glucocorticoids and IV fluids
What are 2 important immune checkpoints?
CTLA-4 and PD-1
When proteins interact with CTLA-4 and PD-1 the T-cells ______?
fall into sleep mode and dont attack the tumor
Ipilimumab MOA?
blocks interaction of CTLA-4 with B7 ligands on APCs and augments T-cell activation
Ipilimumab Use?
metastatic melanoma
Ipilimumab AE?
inflammatory toxicities-immune related