random Flashcards
(259 cards)
proto-oncogene associations c-myc: c-kit: N-myc k-ras CD117
c-myc: Burkitt's lymphoma c-kit: GIST (tyrosine kinase) N-myc - neuroblastoma k-ras - colorectal cancer CD117: GIST
Tumor suppressor genes:
- APC:
- BRCA-2:
- DCC -
- p16 -
- p53 -
- VHL -
- WT-1 -
- MSH2, MLH1 -
- APC: FAP
- BRCA-2: breast cancer (men and women), pancreatic cancer, ovarian cancer, prostate cancer
- DCC - colorectal cancer
- p16 - familial melanoma, pancreatic cancer (DCKN2A)
- p53 - Li-Farumeni
- VHL - kindey cancer, reitinal cancer, brain cancer
- WT-1 - Wilm’s tumor
- MSH2, MLH1 - DNA mismatch repair, Lynch syndrome
cell type: recognize cells lacking self MHC1, triggers APC death apoptosis
NK cells
cell type: recognize (D) PAMPs
TLR
cell type: opsonizes foreign antigens
complement cascade
IL-1 IL-2 IL-4 IL-6 TNFa Interferons
IL-1 - fevere IL-2 - matures T cells IL-4 - IgE, matures B cells into plasma cells IL-6 - fever and acute phase reactants TNFa - septic shock Interferons - secreted by NK cells
cell type: release, IL-2, IL-4, IFN-G. involved in type IV hypersensitivity
helper T cells (CD4
cell type: CD8 , regulate CD4, CD8
suppressor T cells
cell type: CD8, recognize and attack non-self antigens attached to MHC
cytotoxic T cells
cell type: IL-4 stimulates this, 10% become memory
B cells
MHC
- which chromosome?
- expressed by all nucleated cells?
- HLA type for MHC I?
- expressed on thymic epithelium and APC
- HLA type for MHC II?
- chromosome 6
- MHC I
- A, B, C
- MHC II
- DP, DQ, DR* most important
cell type: highly phagocytic APC, expresses MHC II
dendritic
Hypersensitivity Reaction: Anaphylaxis, Atopic, Allergic
I
Hypersensitivity Reaction: IgE mediated, release of histamine
I
Hypersensitivity Reaction: antibody mediated
II
Hypersensitivity Reaction: Rh incompatibility
II
Hypersensitivity Reaction: myasthenia gravis, hyperacute reaction
II
Hypersensitivity Reaction: cytotoxic
II
Hypersensitivity Reaction: rheumatoid arthritis, lupus, serum sickness
III
Hypersensitivity Reaction: immune complex deposition
III
Hypersensitivity Reaction: delayed
IV
Hypersensitivity Reaction: antigen stimulated by prior sensitized T cells
IV
Hypersensitivity Reaction: transplant rejection
IV
transfusion reaction: fevers, chills, DIC due to a release of cytokines from donor
acute hemolytic reaction