Hypersensitivity Flashcards
antibody with type I hypersensitivity
IgE
antibody with type II hypersensitivity (2)
IgM or IgG
antibody with type III hypersensitivity (2)
IgM or IgG
cells with type IV hypersensitivity
T cells
type I hypersensitivity is associated with _____ ; immediate reaction
allergies
IgE live in blood for ____; once attached to mast cell lives ____
a day
several weeks
_____ bought into tissue by signals from MAST cells, will ______ upon antigen exposure
basophils
degranulation
mom has a strong bias towards ____ during pregnancy
Th2 cells
type II hypersensitivity is _____ mediated
antibody
complement INDEPENDENT cytotoxicity is called
antibody-dependent cell-mediated cytotoxicity (ADCC)
in type I hypersensitivity, allergen enters body, _____ eats it, and presents peptide on MHC __, ______ T cells are activated, and differentiate into Th__, which activate ___ cells, which finally make ___ antibody (cause class-switching)
APC MHC II helper T cells Th2 B cells IgE
in early phase of type I hypersensitivity, ___,____ and ____ chemistry released by MAST cell
vasoactive amine (histamine)
proteases
prostaglandins
in late phase of type I hypersensitivity, ___ and ____ pull in other WBC’s
IL-4
TNF
cells located in tissue
immediate response to allergy
mast cells
- cells brough into tissue from blood by signals sent by mast cells
- also have receptors for IgE and will degranulate upon antigen exposure
- rapid response
basophils