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Antigen-antibody complexes

Antigen-antibody complex

The complex formed by the binding of antigen and antibody molecules. The deposition of large antigen-antibody complexes leading to tissue damage causes immune complex diseases. If the antigen is polyvalent the complex may be insoluble.

immune complexes activate complement through the classical pathway.

See: glomerulonephritis, arthus reaction, type III hypersensitivity.

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Lipid Trafficking

... at the moment. Gnnnh. Anyway, I remember that for example when an antigen-presenting cell bearing MHC II molecules presents an MHC II:peptide ... maybe also by microtubules. Oh, and even though I talk about MHC:TCR complexes, I think there are several co-receptors involved like often is ...

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by biohazard
Tue Dec 09, 2008 8:01 am
Forum: Cell Biology
Topic: Lipid Trafficking
Replies: 6
Views: 5198

Electron Micrograph of vesicles...

... Their surfaces are coated with IgE receptors and when stimulated by IgE-antigen complexes, they release the contents of the granules into the surroundings to promote additional ...

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by blcr11
Sat May 26, 2007 3:19 am
Forum: Cell Biology
Topic: Electron Micrograph of vesicles...
Replies: 5
Views: 5303


... varying degrees, depending on the subclass of IgG and the nature of the antigen involved. - Type II responses are directed against cell-surface or ... and tissue damage involved is caused by responses trigerred by immune complexes. Example: serum sickness, Arthus reaction. Allergies mediated by ...

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by Dr.Stein
Mon Feb 06, 2006 6:32 am
Forum: Human Biology
Topic: Allergies
Replies: 3
Views: 3195

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