{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,2]],"date-time":"2026-11-02T18:31:19Z","timestamp":1793644279296,"version":"4.5.1"},"reference-count":49,"publisher":"The Company of Biologists","license":[{"start":{"date-parts":[[2021,5,18]],"date-time":"2021-05-18T00:00:00Z","timestamp":1621296000000},"content-version":"am","delay-in-days":1598,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0"}],"funder":[{"DOI":"10.13039\/100012070","name":"Anatomical Society","doi-asserted-by":"crossref","id":[{"id":"10.13039\/100012070","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/100010269","name":"Welcome Trust","doi-asserted-by":"crossref","award":["102889\/Z\/13\/Z"],"award-info":[{"award-number":["102889\/Z\/13\/Z"]}],"id":[{"id":"10.13039\/100010269","id-type":"DOI","asserted-by":"crossref"}]},{"name":"Fondecyt of Initiation into Research","award":["11140303"],"award-info":[{"award-number":["11140303"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"abstract":"<jats:p>Salivary glands are formed by branching morphogenesis with epithelial progenitors forming a network of ducts and acini (secretory cells). During this process, epithelial progenitors specialise into distal (tips of the gland) and proximal (the stalk region) identities that produce the acini and higher order ducts respectively. Little is known about the factors that regulate progenitor expansion and specialisation in the different parts of the gland. Here we show that Sox9 is involved in establishing the identity of the distal compartment before the initiation of branching morphogenesis. Sox9 is expressed throughout the gland at the initiation stage before becoming restricted to the distal epithelium from the bud stage and throughout branching morphogenesis. Deletion of Sox9 in the epithelium results in loss of the distal epithelial progenitors, a reduction in proliferation and a subsequent failure in branching. We demonstrate that Sox9 is positively regulated by mesenchymal Fgf10, a process that requires active Erk signalling. These results provide new insights into the factors required for the expansion of salivary gland epithelial progenitors, which can be useful for organ regeneration therapy.<\/jats:p>","DOI":"10.1242\/dev.146019","type":"journal-article","created":{"date-parts":[[2017,5,15]],"date-time":"2017-05-15T20:10:23Z","timestamp":1494879023000},"source":"Crossref","is-referenced-by-count":59,"title":["Fgf10-Sox9 are essential for establishment of distal progenitor cells during salivary gland development"],"prefix":"10.1242","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2981-0344","authenticated-orcid":false,"given":"Lemonia","family":"Chatzeli","sequence":"first","affiliation":[{"name":"Centre for Craniofacial and Regenerative Biology, King's College London, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1846-2417","authenticated-orcid":false,"given":"Marcia","family":"Gaete","sequence":"additional","affiliation":[{"name":"Centre for Craniofacial and Regenerative Biology, King's College London, London, UK"},{"name":"Department of Anatomy, Faculty of Medicine, Pontificia Universidad Cat\u00f3lica de Chile, Santiago, Chile"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8871-6094","authenticated-orcid":false,"given":"Abigail S.","family":"Tucker","sequence":"additional","affiliation":[{"name":"Centre for Craniofacial and Regenerative Biology, King's College London, London, UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"237","published-online":{"date-parts":[[2017,1,1]]},"reference":[{"key":"2021042608554489200_DEV146019C1","doi-asserted-by":"publisher","first-page":"1999","DOI":"10.1002\/dvdy.22032","article-title":"Conditional gene inactivation reveals roles for Fgf10 and Fgfr2 in establishing a normal pattern of epithelial branching in the mouse lung","volume":"238","author":"Abler","year":"2009","journal-title":"Dev. 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