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    Jefferson Adams
    Jefferson Adams

    Gluten-free Diet Reverses Type 1 Innate Lymphoid Cells in the Rectal Mucosa of Patients With Non-Celiac Wheat Sensitivity

    Reviewed and edited by a celiac disease expert.

    Celiac.com 07/18/2016 - Researchers still don't have a very good understanding about what triggers non-celiac wheat sensitivity. To get a better idea, a team of researchers recently set out to examine the inflammatory response in the rectal mucosa of patients with well-defined non-celiac wheat sensitivity. Specifically, they wanted to look at type 1 innate lymphoid cells in the rectal mucosa of those patients.

    The research team included Diana Di Liberto, Pasquale Mansueto, Alberto D'Alcamo, Marianna Lo Pizzo, Elena Lo Presti1, Girolamo Geraci, Francesca Fayer, Giuliana Guggino, Giuseppe Iacono, Francesco Dieli, and Antonio Carroccio. They are variously affiliated with the Central Laboratory of Advanced Diagnosis and Biomedical Research (CLADIBIOR), University of Palermo, Palermo, Italy, the Dipartimento di Biopatologia e Biotecnologie Mediche (DIBIMED), University of Palermo, Palermo, Italy, the Dipartimento Biomedico di Medicina Interna e Specialistica (DIBIMIS), University of Palermo, Palermo, Italy, the Surgery Department at the University of Palermo in Palermo, Italy, and with the Pediatric Gastroenterology, ARNAS Di Cristina Hospital, Palermo, Italy 6Internal Medicine, Giovanni Paolo II Hospital, Sciacca (ASP Agrigento), Palermo, Italy.

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    For their study, the team included 22 patients with irritable bowel syndrome (IBS)-like clinical presentation, diagnosed with non-celiac wheat sensitivity by double-blind placebo-controlled challenge. As control subjects, they used eight IBS patients who were not improving on wheat-free diet.

    Two weeks after each of the subjects consumed 80 grams of wheat daily as part of an oral challenge, the researchers isolated cells from rectal biopsies and thoroughly characterized them using fluorescence-activated cell sorting analysis for intracellular cytokines and surface markers. Analysis of the rectal biopsies of wheat-challenged non-celiac wheat sensitivity patients showed that a significant mucosal CD45+ infiltrate consisted of CD3+ and CD3− lymphocytes, with the latter spontaneously producing more interferon (IFN)-γ than IBS controls.

    About 30% of IFN-γ-producing CD45+ cells were T-bet+, CD56−, NKP44−, and CD117−, defining them as a type-1 innate lymphoid cells (ILC1). IFN-γ-producing ILC1 cells significantly decreased in 10 patients analyzed 2 weeks after they resumed a wheat-free diet.

    This study shows that IFN-γ-producing ILC1 cells infiltrate rectal mucosa, promoting the lymphoid cell population, which gives rise to non-celiac wheat sensitivity.

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  • About Me

    Jefferson Adams

    Jefferson Adams is Celiac.com's senior writer and Digital Content Director. He earned his B.A. and M.F.A. at Arizona State University. His articles, essays, poems, stories and book reviews have appeared in numerous magazines, journals, and websites, including North American Project, Antioch Review, Caliban, Mississippi Review, Slate, and more. He is the author of more than 2,500 articles on celiac disease. His university coursework includes studies in science, scientific methodology, biology, anatomy, physiology, medicine, logic, and advanced research. He previously devised health and medical content for Colgate, Dove, Pfizer, Sharecare, Walgreens, and more. Jefferson has spoken about celiac disease to the media, including an appearance on the KQED radio show Forum, and is the editor of numerous books, including "Cereal Killers" by Scott Adams and Ron Hoggan, Ed.D.

    >VIEW ALL ARTICLES BY JEFFERSON ADAMS

     


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