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Semin Immunopathol. 2008 Jul;30(3):291-300. doi: 10.1007/s00281-008-0120-9. Epub 2008 May 21.

NOX enzymes and Toll-like receptor signaling.

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  • 1INSERM, U773, Centre de Recherche Biom├ędicale Bichat Beaujon, CRB3, BP 416, 75018 Paris, France.


Invading microorganisms are recognized by the host innate immune system through pattern recognition receptors. Among these receptors, Toll-like receptors (TLRs) are able to sense the molecular signatures of microbial pathogens, protozoa, fungi, and virus and activate proinflammatory signaling cascades. In addition to their role in bacterial killing by phagocytes, reactive oxygen species generated by NADPH oxidase (NOX) homologues also play key roles in signaling and host defense in a variety of cell types. Recent studies have demonstrated a link between TLR activation and NOX homologues following microbial recognition highlighting their important role in the innate immune response and host defense.

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