Cell · 2019
Chronic Inflammation Permanently Reshapes Tissue-Resident Immunity in Celiac Disease.
СтатьяПоддержка NIH: внешняя программаПоддержка исследования: вне правительства СШАНазвание и аннотация: Перевод пока не подготовлен
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Mayassi Toufic, Ladell Kristin, Gudjonson Herman, McLaren James E, Shaw Dustin G, Tran Mai T, Rokicka Jagoda J, Lawrence Ian, Grenier Jean-Christophe, van Unen Vincent, Ciszewski Cezary, Dimaano Matthew, Sayegh Hoda E, Kumar Vinod, Wijmenga Cisca, Green Peter H R, Gokhale Ranjana, Jericho Hilary, Semrad Carol E, Guandalini Stefano, Dinner Aaron R, Kupfer Sonia S, Reid Hugh H, Barreiro Luis B, Rossjohn Jamie, Price David A, Jabri Bana
Аннотация
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.