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    Jefferson Adams
    Jefferson Adams

    Wheat Protein Show Growth-factor like Activity in the Gut

    Reviewed and edited by a celiac disease expert.

    Celiac.com 04/23/2007 - A study published in a recent issue of the journal Gut suggests that wheat gliadin might trigger pathological development in mucosal cells that are already abnormal, but otherwise tolerated, within the intestinal tracts of individuals with celiac disease.

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    Researchers at the Universita degli Studi di Napoli Federico II in Naples, Italy, led by Dr. Salvatore Auricchio looked at the effects of gliadin peptides on various cell lines and celiac mucosal cells in culture.

    More specifically, the study evaluated the effects of gliadin and affiliated toxic peptides such as A-gliadin P31-43 on endocytosis, cell proliferation, apoptosis, cytoskeleton rearrangements, and activation of epidermal growth factor receptor (EGFR).

    The researchers report that gliadin peptides induce EGF-like effects across a wide range of cell types. Actin rearrangements and cell proliferation are examples of these effects. Also, they state that gliadin peptides act not as ligands of the EGF receptor, but that they actually inhibit EGFR endocytosis.

    According to the research team, these observations of gliadin-induced delay of EGFR endocytosis, along with S-phase entry of epithelial intestinal cells, clearly indicate that EGFR plays a role in celiac disease. Dr. Auricchio proffers that a genetic factor in celiacs may bring about deregulated activity in the endocytotic pathway that is compensated in the absence of gliadin.

    The study concludes that wheat gliadin slows receptor deactivation of Epidermal Growth Factor. This may explain how wheat gliadin and related cereal prolamines trigger rapid increase in cell growth and associated disease activity in people with celiac disease.

    Gut 2007;56:480-488.

     



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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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