{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,3]],"date-time":"2026-05-03T12:45:38Z","timestamp":1777812338397,"version":"3.51.4"},"reference-count":23,"publisher":"SAGE Publications","issue":"3","license":[{"start":{"date-parts":[[2010,11,22]],"date-time":"2010-11-22T00:00:00Z","timestamp":1290384000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Dent Res"],"published-print":{"date-parts":[[2011,3]]},"abstract":"<jats:p>Agenesis of the permanent teeth is a congenital anomaly that is frequently seen in humans. Oligodontia is a severe type of tooth agenesis involving 6 or more congenitally missing teeth, excluding the third molars. Previous studies have indicated that mutations in the homeobox gene MSX1, paired domain transcription factor PAX9, and EDA are associated with non-syndromic oligodontia. This study reports a Japanese family (eight of 14 family members affected) with non-syndromic oligodontia who preferentially lacked molar teeth. In this family, a novel frameshift mutation (321_322insG) was identified in the paired domain of PAX9. The frameshift mutation caused altered amino acids in the paired domain and premature termination of translation by 26 amino acids. When transfected into COS-7 cells, the mRNA expression of 321_322insG PAX9 was comparable with that of wild-type PAX9. However, the mRNA of 321_322insG PAX9 was more unstable than that of wild-type PAX9. This mRNA instability caused a marked decrease in protein production, as evaluated by Western blot analysis and immunostaining. These findings suggest that the 321_322insG mutation causes insufficient function of PAX9 protein and haploinsufficiency as a genetic model of familial non-syndromic oligodontia with a PAX9 mutation.<\/jats:p>","DOI":"10.1177\/0022034510390042","type":"journal-article","created":{"date-parts":[[2010,11,23]],"date-time":"2010-11-23T20:19:02Z","timestamp":1290543542000},"page":"382-386","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":28,"title":["Non-syndromic Oligodontia with a Novel Mutation of\n                    <i>PAX9<\/i>"],"prefix":"10.1177","volume":"90","author":[{"given":"N.","family":"Suda","sequence":"first","affiliation":[{"name":"Maxillofacial Orthognathics, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial\/Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1\u20135-45 Yushima, Bunkyo-ku, Tokyo, 113\u20138510, Japan"},{"name":"Global Center of Excellence (GCOE) Program, International Research Center for Molecular Science in Tooth and Bone Diseases, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"Ogawa","sequence":"additional","affiliation":[{"name":"Maxillofacial Orthognathics, Department of Maxillofacial Reconstruction and Function, Division of Maxillofacial\/Neck Reconstruction, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, 1\u20135-45 Yushima, Bunkyo-ku, Tokyo, 113\u20138510, Japan"},{"name":"Global Center of Excellence (GCOE) Program, International Research Center for Molecular Science in Tooth and Bone Diseases, Tokyo, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"T.","family":"Kojima","sequence":"additional","affiliation":[{"name":"Division of Reconstructive Surgery for Oral and Maxillofacial Region, Department of Tissue Regeneration and Reconstruction, Niigata University 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