T helper 1 immunity requires complement-driven NLRP3 inflammasome activity in CD4+ T cells

Giuseppina Arbore, Erin E. West, Rosanne Spolski, Avril A.B. Robertson, Andreas Klos, Claudia Rheinheimer, Pavel Dutow, Trent M. Woodruff, Zu Xi Yu, Luke A. O'Neill, Rebecca C. Coll, Alan Sher, Warren J. Leonard, Jörg Köhl, Pete Monk, Matthew A. Cooper, Matthew Arno, Behdad Afzali, Helen J. Lachmann, Andrew P. CopeKatrin D. Mayer-Barber, Claudia Kemper*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

212 Citations (Scopus)

Abstract

The NLRP3 inflammasome controls interleukin-1β maturation in antigen-presenting cells, but a direct role for NLRP3 in human adaptive immune cells has not been described. We found that the NLRP3 inflammasome assembles in human CD4 + Tcells and initiates caspase-1-dependent interleukin-1β secretion, thereby promoting interferon-g production and T helper 1 (TH1) differentiation in an autocrine fashion. NLRP3 assembly requires intracellular C5 activation and stimulation of C5a receptor 1 (C5aR1), which is negatively regulated by surface-expressed C5aR2. Aberrant NLRP3 activity in Tcells affects inflammatory responses in human autoinflammatory disease and in mouse models of inflammation and infection. Our results demonstrate that NLRP3 inflammasome activity is not confined to "innate immune cells" but is an integral component of normal adaptive T H 1 responses.

Original languageEnglish
Article numberaad1210
JournalScience
Volume352
Issue number6292
DOIs
Publication statusPublished - 17 Jun 2016
Externally publishedYes

ASJC Scopus subject areas

  • General

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