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Nat Rev Immunol. 2007 Jan;7(1):9-18. Epub 2006 Dec 1.

T-cell regulation: with complements from innate immunity.

Author information

1
Washington University School of Medicine, Department of Internal Medicine, Division of Rheumatology, Campus Box 8045, 660 South Euclid Avenue, Saint Louis, Missouri 63110, USA.

Abstract

The complement system was traditionally known as an effector arm of humoral immunity. Today we also recognize it as a main element of the innate immune system. In blood and other body fluids complement is a first line of defence against pathogens, because it becomes fully active within seconds. Active complement fragments attach to the invading pathogen to promote opsonization and lysis, triggering a local inflammatory response. This Review focuses on the evolving role of the complement system in the regulation of T-cell responses, from directing the initiation phase, through driving lineage commitment, to regulating the contraction phase.

PMID:
17170757
DOI:
10.1038/nri1994
[Indexed for MEDLINE]

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