{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,15]],"date-time":"2026-10-15T19:22:04Z","timestamp":1792092124430,"version":"4.4.0"},"reference-count":67,"publisher":"American Association for the Advancement of Science (AAAS)","issue":"783","content-domain":{"domain":["www.science.org"],"crossmark-restriction":true},"short-container-title":["Sci. Transl. Med."],"published-print":{"date-parts":[[2025,1,29]]},"abstract":"<jats:p>\n            Primary ciliary dyskinesia is a rare monogenic syndrome that is associated with chronic respiratory disease, infertility, and laterality defects. Although more than 50 genes causative of primary ciliary dyskinesia have been identified, variants in the genes encoding coiled-coil domain-containing 39 (CCDC39) and CCDC40 in particular cause severe disease that is not explained by loss of ciliary motility alone. Here, we sought to understand the consequences of these variants on cellular functions beyond impaired motility. We used human cells with pathogenic variants in\n            <jats:italic>CCDC39<\/jats:italic>\n            and\n            <jats:italic>CCDC40<\/jats:italic>\n            ,\n            <jats:italic>Chlamydomonas reinhardtii<\/jats:italic>\n            genetics, cryo\u2013electron microscopy, and proteomics to define perturbations in ciliary assembly and cilia stability, as well as multiple motility-independent pathways. Analysis of proteomics of cilia from patient cells identified that the absence of the axonemal CCDC39\/CCDC40 heterodimer resulted in the loss of a network of more than 90 ciliary structural proteins, including 14 that were defined as ciliary address recognition proteins, which provide docking for the missing structures. The absence of the network impaired microtubule architecture, activated cell quality control pathways, switched multiciliated cell fate to mucus-producing cells and resulted in a defective periciliary barrier. In\n            <jats:italic>CCDC39<\/jats:italic>\n            variant cells, these phenotypes were reversed through expression of a normal\n            <jats:italic>CCDC39<\/jats:italic>\n            transgene. These findings indicate that the CCDC39\/CCDC40 heterodimer functions as a scaffold to support the assembly of an extensive network of ciliary proteins, whose loss results in both motility-dependent and motility-independent phenotypes that may explain the severity of disease. Gene therapy might be a potential treatment option to be explored in future studies.\n          <\/jats:p>","DOI":"10.1126\/scitranslmed.adp5173","type":"journal-article","created":{"date-parts":[[2025,1,29]],"date-time":"2025-01-29T18:58:33Z","timestamp":1738177113000},"update-policy":"https:\/\/doi.org\/10.34133\/aaas_crossmark","source":"Crossref","is-referenced-by-count":26,"title":["Undocking of an extensive ciliary network induces proteostasis and cell fate switching resulting in severe primary ciliary dyskinesia"],"prefix":"10.1126","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-0905-7527","authenticated-orcid":true,"given":"Steven L.","family":"Brody","sequence":"first","affiliation":[{"name":"Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110, 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USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3621-4628","authenticated-orcid":true,"given":"Rashmi","family":"Nanjundappa","sequence":"additional","affiliation":[{"name":"Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thomas G.","family":"Saba","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, University of Michigan Medical School, Ann Arbor, MI 48108, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6493-1515","authenticated-orcid":true,"given":"Nisreen","family":"Rumman","sequence":"additional","affiliation":[{"name":"Department of Pediatrics, Washington University School of Medicine, Saint Louis, MO 63110, USA."},{"name":"Department of Pediatrics, Faculty of Medicine, Al-Quds University, Abu-Deis, 91220, Palestine."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0818-0259","authenticated-orcid":true,"given":"Andrew","family":"Berical","sequence":"additional","affiliation":[{"name":"Center for Regenerative Medicine, Boston University, Boston, MA 02118, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2246-6448","authenticated-orcid":true,"given":"Finn J.","family":"Hawkins","sequence":"additional","affiliation":[{"name":"Center for Regenerative Medicine, Boston University, Boston, MA 02118, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiangli","family":"Wang","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, Saint Louis, MO 63110, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3159-9565","authenticated-orcid":true,"given":"Rui","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Biochemistry and Molecular Biophysics, Washington University School of Medicine, Saint Louis, MO 63110, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8129-7464","authenticated-orcid":true,"given":"Moe R.","family":"Mahjoub","sequence":"additional","affiliation":[{"name":"Department of Medicine, Washington University School of Medicine, Saint Louis, MO 63110, USA."},{"name":"Department of Cell Biology and Physiology, Washington University School of Medicine, Saint Louis, MO 63110, 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