{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T21:39:35Z","timestamp":1791322775654,"version":"4.3.1"},"reference-count":27,"publisher":"Wiley","issue":"s1","license":[{"start":{"date-parts":[[2006,5,2]],"date-time":"2006-05-02T00:00:00Z","timestamp":1146528000000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["European J Oral Sciences"],"published-print":{"date-parts":[[2006,5]]},"abstract":"<jats:p>Transforming growth factor\u2010<jats:italic>\u03b2<\/jats:italic>1 (TGF\u2010<jats:italic>\u03b2<\/jats:italic>1) is a key regulator of many cellular processes, including cell adhesion, the immune response and synthesis of extracellular matrix proteins. In the present study, we report the characterization of enamel defects in a transgenic mouse model overexpressing TGF\u2010<jats:italic>\u03b2<\/jats:italic>1 in odontoblasts and ameloblasts, its expression being driven by the promoter sequences of the dentin sialophosphoprotein gene. As reported earlier, these mice develop distinct dentin defects similar to those seen in human dentin dysplasia and dentinogenesis imperfecta. A further detailed examination of enamel in these mice revealed that from the early secretory stage, ameloblasts began to detach from dentin to form cyst\u2010like structures. A soft X\u2010ray analysis revealed that this cyst\u2010like structure had a disorganized and partially mineralized matrix with an abnormal mineralization pattern and a globular appearance. In the molars, the enamel was not only pitted and hypoplastic, but enamel rods were completely lost. Thus, altered TGF\u2010<jats:italic>\u03b2<\/jats:italic>1 expression in the tooth seems to trigger detachment of ameloblasts and abnormal secretion and deposition of minerals in the cyst\u2010like structures adjoining the dentin. We speculate that the altered expression of TGF\u2010<jats:italic>\u03b2<\/jats:italic>1 in teeth impacts the adhesion process of ameloblasts to dentin.<\/jats:p>","DOI":"10.1111\/j.1600-0722.2006.00276.x","type":"journal-article","created":{"date-parts":[[2006,5,4]],"date-time":"2006-05-04T15:27:15Z","timestamp":1146756435000},"page":"30-34","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":34,"title":["Overexpression of transforming growth factor\u2010<i>\u03b2<\/i>1 in teeth results in detachment of ameloblasts and enamel defects"],"prefix":"10.1111","volume":"114","author":[{"given":"Naoto","family":"Haruyama","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tamizchelvi","family":"Thyagarajan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ziedonis","family":"Skobe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J. 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