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Nat Rev Immunol. 2009 Aug;9(8):556-67. doi: 10.1038/nri2586. Epub 2009 Jul 3.

Structure and signalling in the IL-17 receptor family.

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  • 1University of Pittsburgh, Department of Medicine, Division of Rheumatology and Clinical Immunology, Pittsburgh, Pennsylvania 15261, USA.

Erratum in

  • Nat Rev Immunol. 2009 Oct;9(10):747.


Interleukin-17A (IL-17A), the hallmark cytokine of the newly defined T helper 17 (T(H)17) cell subset, has important roles in protecting the host against extracellular pathogens, but also promotes inflammatory pathology in autoimmune disease. IL-17A and its receptor (IL-17RA) are the founding members of a newly described family of cytokines and receptors that have unique structural features which distinguish them from other cytokine families. Research defining the signal transduction pathways induced by IL-17R family cytokines has lagged behind that of other cytokine families, but studies in the past 2 years have begun to delineate unusual functional motifs and new proximal signalling mediators used by the IL-17R family to mediate downstream events.

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