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Curr Opin Immunol. 1997 Jun;9(3):324-9.

Co-receptors of B lymphocytes.

Author information

1
Wellcome Trust Immunology Unit, University of Cambridge School of Clinical Medicine, Cambridge, CB2 2SP, UK.

Abstract

The past year has seen advances in our understanding of accessory membrane proteins that modulate the B cell response to antigen-receptor stimulation. The generation of complement receptor deficient mice has reinforced our appreciation of the importance of complement receptors in the B cell response to antigen. The association of inositol polyphosphate 5-phosphatase with FcgammaRIIB suggests another mechanism, in addition to recruitment of the phosphotyrosine phosphatase SHP-1, by which secreted immunoglobulin can limit further response to antigen. The in vivo function of CD22 in regulating the threshold of antigen-receptor signalling has been shown using CD22-deficient mice. Lastly, B cell receptor signalling in the B-1 subset of B lymphocytes has been demonstrated to be negatively regulated by CD5.

PMID:
9203413
[Indexed for MEDLINE]

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