| Literature DB >> 30739797 |
Toufic Mayassi1, Kristin Ladell2, Herman Gudjonson3, James E McLaren2, Dustin G Shaw1, Mai T Tran4, Jagoda J Rokicka5, Ian Lawrence5, Jean-Christophe Grenier6, Vincent van Unen7, Cezary Ciszewski5, Matthew Dimaano5, Hoda E Sayegh5, Vinod Kumar8, Cisca Wijmenga8, Peter H R Green9, Ranjana Gokhale10, Hilary Jericho10, Carol E Semrad11, Stefano Guandalini10, Aaron R Dinner12, Sonia S Kupfer13, Hugh H Reid14, Luis B Barreiro6, Jamie Rossjohn15, David A Price16, Bana Jabri17.
Abstract
Tissue-resident lymphocytes play a key role in immune surveillance, but it remains unclear how these inherently stable cell populations respond to chronic inflammation. In the setting of celiac disease (CeD), where exposure to dietary antigen can be controlled, gluten-induced inflammation triggered a profound depletion of naturally occurring Vγ4+/Vδ1+ intraepithelial lymphocytes (IELs) with innate cytolytic properties and specificity for the butyrophilin-like (BTNL) molecules BTNL3/BTNL8. Creation of a new niche with reduced expression of BTNL8 and loss of Vγ4+/Vδ1+ IELs was accompanied by the expansion of gluten-sensitive, interferon-γ-producing Vδ1+ IELs bearing T cell receptors (TCRs) with a shared non-germline-encoded motif that failed to recognize BTNL3/BTNL8. Exclusion of dietary gluten restored BTNL8 expression but was insufficient to reconstitute the physiological Vγ4+/Vδ1+ subset among TCRγδ+ IELs. Collectively, these data show that chronic inflammation permanently reconfigures the tissue-resident TCRγδ+ IEL compartment in CeD. VIDEO ABSTRACT.Entities:
Keywords: butyrophilin-like molecules; celiac disease; intraepithelial lymphocytes; tissue-resident lymphocytes; γδ T cells
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Year: 2019 PMID： 30739797 PMCID： PMC6667191 DOI： 10.1016/j.cell.2018.12.039
Source DB: PubMed Journal: Cell ISSN： 0092-8674 Impact factor: 41.582