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- Publisher
- Annual Reviews
- Copyright
- Copyright © 2010 by Annual Reviews. All rights reserved
- ISSN
- 0732-0582
- eISSN
- 1545-3278
- DOI
- 10.1146/annurev-immunol-030409-101305
- pmid
- 19968561
- Publisher site
- See Article on Publisher Site
Abstract
The innate immune system consists of a cellular and a humoral arm. Pentraxins (e.g., the short pentraxin C reactive protein and the long pentraxin PTX3) are key components of the humoral arm of innate immunity which also includes complement components, collectins, and ficolins. In response to microorganisms and tissue damage, neutrophils, macrophages, and dendritic cells are major sources of fluid-phase pattern-recognition molecules (PRMs) belonging to different molecular classes. Humoral PRMs in turn interact with and regulate cellular effectors. Effector mechanisms of the humoral innate immune system include activation and regulation of the complement cascade; agglutination and neutralization; facilitation of recognition via cellular receptors (opsonization); and regulation of inflammation. Thus, the humoral arm of innate immunity is an integrated system consisting of different molecules and sharing functional outputs with antibodies.
Journal
Annual Review of Immunology – Annual Reviews
Published: Apr 23, 2009