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RUNX2 mutations in cleidocranial dysplasia patients.

Cited 29 time in Web of Science Cited 31 time in Scopus
Authors

Ryoo, H-M; Kang, H-Y; Lee, S-K; Lee, K-E; Kim, J-W

Issue Date
2009-09
Publisher
Wiley-Blackwell
Citation
Oral Diseases 16:55-60
Keywords
RUNX2Cleidocranial dysplasiamutationsupernumerary teeth
Abstract
Objective: Mutations in the RUNX2 gene, a master regulator of bone formation, have been identified in cleidocranial dysplasia (CCD) patients. CCD is a rare autosomal-dominant disease characterized by the delayed closure of cranial sutures, defects in clavicle formation, and supernumerary teeth. The purposes of this study were to identify genetic causes of two CCD nuclear families and to report their clinical phenotypes.

Materials and methods: We identified two CCD nuclear families and performed mutational analyses to clarify the underlying molecular genetic etiology.

Results: Mutational analysis revealed a novel nonsense mutation (c.273T>A, p.L93X) in family 1 and a de novo missense one (c.673C>T, p.R225W) in family 2. Individuals with a nonsense mutation showed maxillary hypoplasia, delayed eruption, multiple supernumerary teeth, and normal stature. In contrast, an individual with a de novo missense mutation in the Runt domain showed only one supernumerary tooth and short stature.

Conclusions: Mutational and phenotypic analyses showed that the severity of mutations on the skeletal system may not necessarily correlate with that of the disruption of tooth development.
ISSN
1354-523X
Language
English
URI
https://hdl.handle.net/10371/68959
DOI
https://doi.org/10.1111/j.1601-0825.2009.01623.x
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