## Co-receptors on B lymphocytes Takeshi Tsubata Co-receptors have been shown to regulate the antigenreceptor signaling threshold for B cell responses by modulating the activation of signaling molecules that are essential for transmitting a signal through the antigen-receptor. Co-receptors appear t
Co-receptors of B lymphocytes
β Scribed by Lorraine O'Rourke; Reuben Tooze; Douglas T Fearon
- Book ID
- 104358702
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 574 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0952-7915
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β¦ Synopsis
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.
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