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    Publication Date: 2016-02-06
    Description: The intestinal epithelium forms an essential barrier between a host and its microbiota. Protozoa and helminths are members of the gut microbiota of mammals, including humans, yet the many ways that gut epithelial cells orchestrate responses to these eukaryotes remain unclear. Here we show that tuft cells, which are taste-chemosensory epithelial cells, accumulate during parasite colonization and infection. Disruption of chemosensory signaling through the loss of TRMP5 abrogates the expansion of tuft cells, goblet cells, eosinophils, and type 2 innate lymphoid cells during parasite colonization. Tuft cells are the primary source of the parasite-induced cytokine interleukin-25, which indirectly induces tuft cell expansion by promoting interleukin-13 production by innate lymphoid cells. Our results identify intestinal tuft cells as critical sentinels in the gut epithelium that promote type 2 immunity in response to intestinal parasites.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Howitt, Michael R -- Lavoie, Sydney -- Michaud, Monia -- Blum, Arthur M -- Tran, Sara V -- Weinstock, Joel V -- Gallini, Carey Ann -- Redding, Kevin -- Margolskee, Robert F -- Osborne, Lisa C -- Artis, David -- Garrett, Wendy S -- F31DK105653/DK/NIDDK NIH HHS/ -- F32DK098826/DK/NIDDK NIH HHS/ -- R01 CA154426/CA/NCI NIH HHS/ -- R01 GM099531/GM/NIGMS NIH HHS/ -- New York, N.Y. -- Science. 2016 Mar 18;351(6279):1329-33. doi: 10.1126/science.aaf1648. Epub 2016 Feb 4.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Departments of Immunology and Infectious Diseases and Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA. ; Division of Gastroenterology, Tufts Medical Center, Boston, MA 02111, USA. ; Monell Chemical Senses Center, Philadelphia, PA 19104, USA. ; Jill Roberts Institute for Research in Inflammatory Bowel Disease, Weill Cornell Medical College, Cornell University, New York, NY 10021, USA. ; Departments of Immunology and Infectious Diseases and Genetics and Complex Diseases, Harvard T. H. Chan School of Public Health, Boston, MA 02115, USA. Broad Institute of Harvard and Massachusetts Institute of Technology, Cambridge, MA 02142, USA. Department of Medical Oncology, Dana-Farber Cancer Institute, Boston, MA 02215, USA. wgarrett@hsph.harvard.edu.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26847546" target="_blank"〉PubMed〈/a〉
    Keywords: Animals ; Chemoreceptor Cells/*immunology ; Eosinophils/immunology ; Goblet Cells/immunology ; Helminthiasis/immunology/parasitology ; Helminths/immunology ; Immunity, Mucosal ; Interleukin-13/immunology ; Interleukin-17/immunology ; Intestinal Diseases, Parasitic/*immunology/parasitology ; Intestinal Mucosa/*immunology/*parasitology ; Mice ; Mice, Inbred C57BL ; Mice, Mutant Strains ; Microbiota/*immunology ; Protein-Serine-Threonine Kinases/immunology ; Protozoan Infections/immunology/parasitology ; Signal Transduction ; TRPM Cation Channels/*immunology ; Taste ; Transducin/genetics/immunology ; Tritrichomonas/immunology
    Print ISSN: 0036-8075
    Electronic ISSN: 1095-9203
    Topics: Biology , Chemistry and Pharmacology , Computer Science , Medicine , Natural Sciences in General , Physics
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