{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T01:28:28Z","timestamp":1787016508936,"version":"build-2736575974"},"reference-count":68,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"83","content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Immunol."],"published-print":{"date-parts":[[2023,5,26]]},"abstract":"<jats:p>\n                    Chemosensory epithelial tuft cells contribute to innate immunity at barrier surfaces, but their differentiation from epithelial progenitors is not well understood. Here, we exploited differences between inbred mouse strains to identify an epithelium-intrinsic mechanism that regulates tuft cell differentiation and tunes innate type 2 immunity in the small intestine. Balb\/cJ (Balb) mice had fewer intestinal tuft cells than C57BL\/6J (B6) mice and failed to respond to the tuft cell ligand succinate. Most of this differential succinate response was determined by the 50- to 67-Mb interval of chromosome 9 (Chr9), such that congenic Balb mice carrying the B6 Chr9 interval had elevated baseline numbers of tuft cells and responded to succinate. The Chr9 locus includes\n                    <jats:italic>Pou2af2<\/jats:italic>\n                    , which encodes the protein OCA-T1, a transcriptional cofactor essential for tuft cell development. Epithelial crypts expressed a previously unannotated short isoform of\n                    <jats:italic>Pou2af2<\/jats:italic>\n                    predicted to use a distinct transcriptional start site and encode a nonfunctional protein. Low tuft cell numbers and the resulting lack of succinate response in Balb mice were explained by a preferential expression of the short isoform and could be rescued by expression of full-length\n                    <jats:italic>Pou2af2<\/jats:italic>\n                    . Physiologically,\n                    <jats:italic>Pou2af2<\/jats:italic>\n                    isoform usage tuned innate type 2 immunity in the small intestine. Balb mice maintained responsiveness to helminth pathogens while ignoring commensal\n                    <jats:italic>Tritrichomonas<\/jats:italic>\n                    protists and reducing norovirus burdens.\n                  <\/jats:p>","DOI":"10.1126\/sciimmunol.ade5019","type":"journal-article","created":{"date-parts":[[2023,5,12]],"date-time":"2023-05-12T13:58:06Z","timestamp":1683899886000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":17,"title":["Genetic mapping reveals\n                    <i>Pou2af2\/<\/i>\n                    OCA-T1\u2013dependent tuning of tuft cell differentiation and intestinal type 2 immunity"],"prefix":"10.1126","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6632-8381","authenticated-orcid":true,"given":"Marija S.","family":"Nadjsombati","sequence":"first","affiliation":[{"name":"Department of Immunology, University of Washington School of Medicine, Seattle, WA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8057-8977","authenticated-orcid":true,"given":"Natalie","family":"Niepoth","sequence":"additional","affiliation":[{"name":"Zuckerman Mind Brain Behavior Institute, Columbia University, NY, USA."},{"name":"Department of Ecology, Evolution and Environmental Biology, Columbia University, NY, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lily M.","family":"Webeck","sequence":"additional","affiliation":[{"name":"Department of Immunology, University of Washington School of Medicine, Seattle, WA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7934-1307","authenticated-orcid":true,"given":"Elizabeth A.","family":"Kennedy","sequence":"additional","affiliation":[{"name":"Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St.\u00a0Louis, MO, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0004-6946-6850","authenticated-orcid":true,"given":"Danielle L.","family":"Jones","sequence":"additional","affiliation":[{"name":"Department of Immunology, University of Washington School of Medicine, Seattle, WA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0008-1460-3458","authenticated-orcid":true,"given":"Tyler E.","family":"Billipp","sequence":"additional","affiliation":[{"name":"Department of Immunology, University of Washington School of Medicine, Seattle, WA, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7030-6131","authenticated-orcid":true,"given":"Megan T.","family":"Baldridge","sequence":"additional","affiliation":[{"name":"Department of Medicine, Division of Infectious Diseases, Edison Family Center for Genome Sciences and Systems Biology, Washington University School of Medicine, St.\u00a0Louis, MO, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4220-3653","authenticated-orcid":true,"given":"Andres","family":"Bendesky","sequence":"additional","affiliation":[{"name":"Zuckerman Mind Brain Behavior Institute, Columbia University, NY, USA."},{"name":"Department of Ecology, Evolution and Environmental Biology, Columbia University, NY, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2894-3353","authenticated-orcid":true,"given":"Jakob","family":"von Moltke","sequence":"additional","affiliation":[{"name":"Department of Immunology, University of Washington School of Medicine, Seattle, WA, 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