Interleukin-10 receptor signaling in innate immune cells regulates mucosal immune tolerance and anti-inflammatory macrophage function

Dror S. Shouval, Amlan Biswas, Jeremy A. Goettel, Katelyn McCann, Evan Conaway, Naresh S. Redhu, Ivan D. Mascanfroni, Ziad AlAdham, Sydney Lavoie, Mouna Ibourk, Deanna D. Nguyen, Janneke N. Samsom, Johanna C. Escher, Raz Somech, Batia Weiss, Rita Beier, Laurie S. Conklin, Christen L. Ebens, Fernanda G M S Santos, Alexandre R. FerreiraMary Sherlock, Atul K. Bhan, Werner Müller, J. Rodrigo Mora, Francisco J. Quintana, Christoph Klein, Aleixo M. Muise, BruceH Horwitz, Scott B. Snapper

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Intact interleukin-10 receptor (IL-10R) signaling on effector and T regulatory (Treg) cells are each independently required to maintain immune tolerance. Here we show that IL-10 sensing by innate immune cells, independent of its effects on Tcells, was critical for regulating mucosal homeostasis. Following wild-type (WT) CD4+ Tcell transfer, Rag2-/-Il10rb-/- mice developed severe colitis in association with profound defects in generation and function of Treg cells. Moreover, loss of IL-10R signaling impaired the generation and function of anti-inflammatory intestinal and bone-marrow-derived macrophages and their ability to secrete IL-10. Importantly, transfer of WT but not Il10rb-/- anti-inflammatory macrophages ameliorated colitis induction by WT CD4+ Tcells in Rag2-/-Il10rb-/- mice. Similar alterations in the generation and function of anti-inflammatory macrophages were observed in IL-10R-deficient patients with very early onset inflammatory bowel disease. Collectively, our studies define innate immune IL-10R signaling as a key factor regulating mucosal immune homeostasis in mice and humans. © 2014 Elsevier Inc.
    Original languageEnglish
    Pages (from-to)706-719
    Number of pages13
    JournalImmunity
    Volume40
    Issue number5
    DOIs
    Publication statusPublished - 15 May 2014

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