Chapter 11: Immunotherapy Flashcards
Adaptive Immune System
Requires time for development
Immunological Memory
Cytokines
Recognizes specific peptides
Macrophages
Innate Immune System
Activated by pro-inflammatory cytokines from necrotic cells
Reactive oxygen Species(ROS)
Phagocytosis and ADCC
NK
Recognize non-self tumor cells expressing lower levels of histocompatability proteins
ADCC
APCs
Antigen Presenting Cells
APC Macrophage and DC
Recognize tumor associated antigens as foreign
APC primed B cells
Antibodies against tumor antigens
ADCC
APC Primed Tcx Cells
Recognize tumor antigens on transformed cells as NON-SELF
Cytotoxicity
Cytotoxic T Cell Killing
Cancer cells often down-regulate MHC1 to avoid being killed
B Cells
Produce specific antibodies for opsonization (flagging)
ADCC
Antibody Dependent Cellular Cytotoxicity
Mainly macrophage and NK
T Cells
Recognize non-self peptides in groove of MHC molecules on surface of cells
Two ways tumor can be recognized by immune system
- Altered Self Peptides
2. Over expression of MHC
Innate Immune System
Quick Responders
Recognizes stress on cancer cells, pattern PAMPS, and abs on cells