ILC2s mediate systemic innate protection by priming mucus production at distal mucosal sites.

TitleILC2s mediate systemic innate protection by priming mucus production at distal mucosal sites.
Publication TypeJournal Article
Year of Publication2019
AuthorsCampbell L, Hepworth MR, Whittingham-Dowd J, Thompson S, Bancroft AJ, Hayes KS, Shaw TN, Dickey BF, Flamar A-L, Artis D, Schwartz DA, Evans CM, Roberts IS, Thornton DJ, Grencis RK
JournalJ Exp Med
Volume216
Issue12
Pagination2714-2723
Date Published2019 Dec 02
ISSN1540-9538
KeywordsAnimals, Cross Protection, Goblet Cells, Hyperplasia, Immunity, Innate, Interleukin-13, Intestinal Mucosa, Lymphocyte Subsets, Male, Mice, Mice, Knockout, Mucins, Mucous Membrane, Mucus, Trichinella spiralis, Trichinellosis
Abstract

Host immunity to parasitic nematodes requires the generation of a robust type 2 cytokine response, characterized by the production of interleukin 13 (IL-13), which drives expulsion. Here, we show that infection with helminths in the intestine also induces an ILC2-driven, IL-13-dependent goblet cell hyperplasia and increased production of mucins (Muc5b and Muc5ac) at distal sites, including the lungs and other mucosal barrier sites. Critically, we show that type 2 priming of lung tissue through increased mucin production inhibits the progression of a subsequent lung migratory helminth infection and limits its transit through the airways. These data show that infection by gastrointestinal-dwelling helminths induces a systemic innate mucin response that primes peripheral barrier sites for protection against subsequent secondary helminth infections. These data suggest that innate-driven priming of mucus barriers may have evolved to protect from subsequent infections with multiple helminth species, which occur naturally in endemic areas.

DOI10.1084/jem.20180610
Alternate JournalJ Exp Med
PubMed ID31582416
PubMed Central IDPMC6888984
Grant List210661/Z/18/Z / WT_ / Wellcome Trust / United Kingdom
R35 HL140039 / HL / NHLBI NIH HHS / United States
T32 HL007085 / HL / NHLBI NIH HHS / United States
R01 HL097163 / HL / NHLBI NIH HHS / United States
/ WT_ / Wellcome Trust / United Kingdom
R33 HL120770 / HL / NHLBI NIH HHS / United States
R01 HL129795 / HL / NHLBI NIH HHS / United States
R01 HL130938 / HL / NHLBI NIH HHS / United States
105610 / WT_ / Wellcome Trust / United Kingdom
R01 HL080396 / HL / NHLBI NIH HHS / United States