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Mol Immunol. 2008 Oct;45(16):4041-7. doi: 10.1016/j.molimm.2008.07.011. Epub 2008 Aug 26.

A role of macrophage complement receptor CRIg in immune clearance and inflammation.

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1
Department of Immunology, Genentech Inc., South San Francisco, CA 94080, USA.

Abstract

Complement receptor of the immunoglobulin superfamily (CRIg), also referred to as Z39Ig and V-set and Ig domain-containing 4 (VSIG4), has recently been implicated in the clearance of systemic pathogens and autologous cells. CRIg is exclusively expressed on tissue resident macrophages and binds to multimers of C3b and iC3b that are covalently attached to particle surfaces. Next to functioning as an important clearance receptor, CRIg's extracellular domain inhibits complement activation through the alternative, but not the classical, pathway, providing a novel tool to selectively block this pathway in vivo. Here, we review a role for CRIg in immune clearance, T-cell responses and complement regulation, and discuss the implications for disease manifestation.

PMID:
18752851
DOI:
10.1016/j.molimm.2008.07.011
[Indexed for MEDLINE]
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