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Receptors igg

receptors, IgG

specific molecular sites on the surface of various cells, including b-lymphocytes and macrophages, that combine with iggs. Three subclasses exist: fc gamma ri (the CD64 antigen, a low affinity receptor), fc gamma rii (the CD32 antigen, a high affinity receptor), and fc gamma riii (the CD16 antigen, a low affinity receptor).


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Immunology: Th1/Th2 vs cellular/humoral responses

... secrete. For example, Th1 cytokines, such as IFN-g, tend to promote IgG-based responses that are, for example, protective from allergy. Thus, ... when an allergen is bound by its specific IgE, it cross-links the FceRI receptors on surface of the basophil and causes the release of substances ...

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by biohazard
Tue Nov 02, 2010 9:35 am
 
Forum: Cell Biology
Topic: Immunology: Th1/Th2 vs cellular/humoral responses
Replies: 10
Views: 42759

Re: Cytokine - Receptor concepts

... for example: IgM ( wich acts in the complement activation), IgG and it subclasses ( acts in Fc receptor-dependent phagocyte responses, ... on the cell surface the affinity of the cytokine will be increase. Receptors has remarkable characteristics and are partly because of deficiency ...

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by marla
Tue Jun 01, 2010 9:08 pm
 
Forum: Cell Biology
Topic: Cytokine - Receptor concepts
Replies: 7
Views: 14408

The Immune System - Recognition in innate immunity. How?

... are common to microbes but not present in the host body. This way the receptors that recognize these can be assembled straight from their respective ... role in eradicating the pathogen. IgE has a different heavy chain from IgG subtypes, and is capable of binding with high affinity to the surface ...

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by biohazard
Tue May 12, 2009 7:43 am
 
Forum: Cell Biology
Topic: The Immune System - Recognition in innate immunity. How?
Replies: 2
Views: 10080


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