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Trends Cell Biol. 2008 Oct;18(10):486-93. doi: 10.1016/j.tcb.2008.07.005. Epub 2008 Aug 28.

SKAP-55, SKAP-55-related and ADAP adaptors modulate integrin-mediated immune-cell adhesion.

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  • 1Cambridge Institute for Medical Research, Cambridge, UK.

Abstract

Integrin adhesion is essential for aspects of immune function, including antigen presentation and migration in lymph nodes, germinal centers and sites of inflammation. Antigen receptors on B and T cells generate 'inside-out' signals for increased integrin clustering and adhesion. Although upstream components of B-cell-receptor or T-cell-receptor signaling are needed, the identity of key downstream effectors that mediate integrin adhesion is only just emerging. New candidates include immune-cell-specific adaptor proteins ADAP, SKAP-55 and SKAP-55-related (SKAP-55R). SKAP-55 has recently been identified as an effector in T cells in SKAP-55-deficient mice, whereas SKAP-55R is needed for B-cell adhesion. ADAP is required for SKAP-55 and SKAP-55R protein stability. SKAP-55 and SKAP-55R have unexpectedly specialized roles in T- and B-cell adhesion of the immune system.

PMID:
18760924
[PubMed - indexed for MEDLINE]
PMCID:
PMC3512129
Free PMC Article
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