{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,5]],"date-time":"2026-09-05T20:55:57Z","timestamp":1788641757609,"version":"build-2803163510"},"reference-count":30,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2022,6,26]],"date-time":"2022-06-26T00:00:00Z","timestamp":1656201600000},"content-version":"vor","delay-in-days":176,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["81901541"],"award-info":[{"award-number":["81901541"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["BioMed Research International"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:p><jats:italic>Background<\/jats:italic>. Primary ciliary dyskinesia (PCD) is a clinical syndrome characterized by cilia with an abnormal structure or function. Its main clinical manifestations comprise chronic bronchitis, cough, recurrent respiratory infections, situs inversus, and male infertility. Single\u2010gene variants are widely assumed to be the main cause of this rare disease, and more than 40 genes have been described to be associated with its onset. <jats:italic>CCDC39<\/jats:italic> is essential for assembling the inner dynein arms and dynein regulatory complex and is important in cilia motility. <jats:italic>CCDC39<\/jats:italic> variants were reported as a monogenic etiology of PCD. <jats:italic>Methods<\/jats:italic>. This study investigated two unrelated Chinese patients diagnosed as PCD. The chest computed tomography scan was performed to identify PCD phenotypes of the two probands. Considering the effect of PCD on male fertility, routine semen analysis, sperm morphology examination, and scanning electron microscopy were performed to assess the semen characteristics of male proband in family 2 (F2 II\u20101), who had a history of infertility. Subsequently, the peripheral blood samples of probands were collected to perform whole\u2010exome sequencing (WES) to explore the possible genetic causes of this disease. <jats:italic>Results<\/jats:italic>. Whole\u2010exome sequencing revealed a homozygous <jats:italic>CCDC39<\/jats:italic> variant in the female proband of family 1 (F1 II\u20101: c.286C&gt;T:p.Arg96Ter) and two compound heterozygous <jats:italic>CCDC39<\/jats:italic> variants in the male proband of family 2 (F2 II\u20101: c.732_733del: p.Ala245PhefsTer18; c.2800_2802dup:p.Val934dup). The two probands showed the typical PCD phenotypes, including chronic bronchitis, recurrent respiratory infections, and situs inversus. The male proband also showed oligoasthenoteratospermia with multiple morphological abnormalities of the sperm flagella. Additionally, CCDC39 protein level was significantly lower in the sperm of male proband than in the sperm from normal controls. <jats:italic>Conclusion<\/jats:italic>. We identified a homozygous variant reported previously and two compound heterozygous variants of <jats:italic>CCDC39<\/jats:italic> possibly responsible for PCD pathogenesis, expanding the variant spectrum of Chinese PCD, Kartagener syndrome, and morphological abnormalities of the sperm flagella involving <jats:italic>CCDC39<\/jats:italic>.<\/jats:p>","DOI":"10.1155\/2022\/7130555","type":"journal-article","created":{"date-parts":[[2022,6,26]],"date-time":"2022-06-26T22:35:06Z","timestamp":1656282906000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Biallelic Variants in <i>CCDC39<\/i> Gene Lead to Primary Ciliary Dyskinesia and Kartagener 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