Orphan receptor IL-17RD tunes IL-17A signalling and is required for neutrophilia

Mark Mellett, Paola Atzei, Alan Horgan, Emily Hams, Thomas Floss, Wolfgang Wurst, Padraic G. Fallon, Paul N. Moynagh

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Interleukin-17A, the prototypical member of the interleukin-17 cytokine family, coordinates local tissue inflammation by recruiting neutrophils to sites of infection. Dysregulation of interleukin-17 signalling has been linked to the pathogenesis of inflammatory diseases and autoimmunity. The interleukin-17 receptor family members (A-E) have a broad range of functional effects in immune signalling yet no known role has been described for the remaining orphan receptor, interleukin-17 receptor D, in regulating interleukin-17A-induced signalling pathways. Here we demonstrate that interleukin-17 receptor D can differentially regulate the various pathways employed by interleukin-17A. Neutrophil recruitment, in response to in vivo administration of interleukin-17A, is abolished in interleukin-17 receptor D-deficient mice, correlating with reduced interleukin-17A-induced activation of p38 mitogen-activated protein kinase and expression of the neutrophil chemokine MIP-2. In contrast, interleukin-17 receptor D deficiency results in enhanced interleukin-17A-induced activation of nuclear factor-kappa B and interleukin-6 and keratinocyte chemoattractant expression. Interleukin-17 receptor D disrupts the interaction of Act1 and TRAF6 causing differential regulation of nuclear factor-kappa B and p38 mitogen-activated protein kinase signalling pathways.
Original languageEnglish
Article number1119
Pages (from-to)1-10
Number of pages10
JournalNature Communications
Issue number1119
Publication statusPublished - Oct 2012

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    Mellett, M., Atzei, P., Horgan, A., Hams, E., Floss, T., Wurst, W., Fallon, P. G., & Moynagh, P. N. (2012). Orphan receptor IL-17RD tunes IL-17A signalling and is required for neutrophilia. Nature Communications, 3(1119), 1-10. [1119]. https://doi.org/10.1038/ncomms2127