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Cigarette smoke silences innate lymphoid cell function and facilitates an exacerbated type I interleukin-33-dependent response to infection.

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Author

  • Jennifer Kearley
  • Jonathan S Silver
  • Caroline Sandén
  • Zheng Liu
  • Aaron A Berlin
  • Natalie White
  • Michiko Mori
  • Tuyet-Hang Pham
  • Christine K Ward
  • Gerard J Criner
  • Nathaniel Marchetti
  • Tomas Mustelin
  • Jonas Erjefält
  • Roland Kolbeck
  • Alison A Humbles
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Summary, in English

Cigarette smoking is a major risk factor for chronic obstructive pulmonary disease and is presumed to be central to the altered responsiveness to recurrent infection in these patients. We examined the effects of smoke priming underlying the exacerbated response to viral infection in mice. Lack of interleukin-33 (IL-33) signaling conferred complete protection during exacerbation and prevented enhanced inflammation and exaggerated weight loss. Mechanistically, smoke was required to upregulate epithelial-derived IL-33 and simultaneously alter the distribution of the IL-33 receptor ST2. Specifically, smoke decreased ST2 expression on group 2 innate lymphoid cells (ILC2s) while elevating ST2 expression on macrophages and natural killer (NK) cells, thus altering IL-33 responsiveness within the lung. Consequently, upon infection and release, increased local IL-33 significantly amplified type I proinflammatory responses via synergistic modulation of macrophage and NK cell function. Therefore, in COPD, smoke alters the lung microenvironment to facilitate an alternative IL-33-dependent exaggerated proinflammatory response to infection, exacerbating disease.

Publishing year

2015

Language

English

Pages

566-579

Publication/Series

Immunity

Volume

42

Issue

3

Document type

Journal article

Publisher

Cell Press

Topic

  • Immunology in the medical area

Status

Published

Research group

  • Airway Inflammation and Immunology

ISBN/ISSN/Other

  • ISSN: 1074-7613