Exam 6 Flashcards
low grade fever
101.4-101.5 (FUO starts at >101)
auer rods indicate
acute myeloid leukemia
two mc sites for extramedullary ALL
testes and CNS
SMUDGE CELLS
CHRONIC LYMPHOCYTIC LEUKEMIA
philidelphia chromosome indicated this chronic leukemia
chronic myeloid leukemia, phili CreaM cheese
three stages of chronic, accelerated, blast crisis in which leukemia
chronic myeloid leukemia
only leukemia with single agent frontline therapy
CML–> oral tyrosine kinase inhibitor imatinib
antigen presenting cells
b cells, macrophages, dendritic cells–>use MHC class 2
bacteria–> cd4 or cd8?
cd4, uses MHC class 2 bc its an extracellular pathogen
virus–>cd4 or cd8?
cd8, intracellular pathogen, use cd8, nucleated cell is internally infected with virus.
mc way of virus getting into cell
receptor mediated endocytosis. a viral receptor on target cell interacts with the viral associated protein
fungi is ______ and uses mhc class 1 and 2
primarily cell mediated and uses class 1 and 2. t cytotoxic attach to surrounding tissue, t helper inc t cyctotoxic activity, macrophages directed by th1 to clean up area
th1 causes
cell mediated response and tons of ILs (cytokines) released
th2 causes
antibody proliferation, JUST IL4.
parasitic infections cause
th2 to release il4, il4 tells b cell to secrete ig3—>mast cell releases histamine
parasites can release _______ that does what
free antigen, interferes with antibodies, b and t cells and basically gets stuck on everything
use ____ to monitor metastatic colon cancer
carcinoembryonic antigen CEA
IMMUNE RESPONSE TO TUMORS
cd4 tells td8 to kill tumor cell (type 4 hypersensitivity) also macrophages activated
antibody’s role in tumor killing
- can activate complement and kill tumor, lyse it up
2. Fc of antibody and NK cell will kill it (NK needs signal from AB to do the tumor killing)
active NON-specific immunotherapy
give back co-stimulatory products like cytokines that tumor has downregulated to fight infection
active specific immunotherapy
grow dendritic cells and show the tumor cell to them and inject back into patient
passive NON-specific immunotherapy
activate NK in vitro with IL2 then put back into patient, not specific (just IL2) but HIGHLY active
passive specific immunotherapy
bioengineered AB
which two immunizations given together at 1 year and kindergarten and SUBQ
MMR and varicella pro quad