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(Immunology Review) B cell Ab Functions
B Cells the good and the bad
12
Other
Not Applicable
10/18/2012

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Cards

Term
antibody blocks virus or toxin from binding to cell
Definition
neutralization (good)
Term
antibody binds a normal self cell receptor and either blocks it or activates it (eg. Myasthenia Gravis, Grave's disease)
Definition
neutralization (bad)
Term
antibody activates complement which pokes holes in pathogen to destroy it. Also recruits neutrophils to kill it
Definition
complement activation (good)
Term
the target for the antibody is one of your own cells (Ex: cells in kidney or joints) so the complement attacks you and recruits neutrophils to kill your own cells
Definition
complement activation (bad)
Term
antibody binds to bacteria and to receptors on macrophages. Stimulates macrophage to phagocytose (eat) the bacteria and digest it
Definition
Opsonization (good)
Term
antibody binds to your own cells (eg. red blood cells) and to receptors on macrophages. stimulates macrophage to eat your RBCs
Definition
Opsonization (bad)
Term
Ab binds an abnormal host cell and to receptor on NK cell. Signals NK cell to kill infected or cancerous host cell
Definition
Antibody-dependent cellular cytotoxicity (ADCC) (good)
Term
Ab binds a normal self cell (eg. TBC) and triggers NK cells to kill it
Definition
Antibody-dependent cellular cytotoxicity (ADCC) (bad)
Term
Antigen from paraiste binds antibody and triggers mast cell degranulation. Parasite is expelled from body
Definition
Mast cell activation (good)
Term
Pollen, peanuts, drugs, etc- antigen. Ag binds antibody and triggers mast cell degranulation. Causes allergy, hives, anaphylaxix, etc
Definition
Mast cell activation (bad)
Term
Most antigens: allows for isotype switching; allows B cell to undergo affinity maturation; and immunological memory
Definition
T-dependent
Term
Leads to production of natural antibodies, only works for a few antigens (polysaccharides), doesn't cause isotype switching, low affinity, no memory, children are not good at making these B cell responses
Definition
T-independent
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