Molecular and Cellular Pathogenesis of Cherubism

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Study of rare genetic disorder often provides fundamental insights into the pathology of common diseases. Cherubism is a rare craniofacial disorder in children characterized by the destruction of maxillary and mandibular bones due to expansile fibrous inflammatory lesions. Genetic study of cherubism families discovered that gain-of-function mutations in the signaling adaptor protein SH3BP2 are responsible for cherubism. Analysis of the mouse model revealed that cherubism is an autoinflammatory disorder that is caused by dysregulated signaling pathway mediated by toll-like receptors and spleen tyrosine kinase. Recent study of the SH3BP2-deficient mice showed that SH3BP2 plays important roles in bone resorption in mouse models of inflammatory arthritis. These results establish SH3BP2 as a key player in the osteoimmune system beyond its role in a rare inherited disorder and suggest that the signaling pathway mediated by SH3BP2 is involved in the pathogenesis of common inflammatory bone diseases such as rheumatoid arthritis.

Original languageEnglish (US)
Pages (from-to)918-926
Number of pages9
JournalClinical calcium
Issue number6
StatePublished - Jun 1 2016
Externally publishedYes

ASJC Scopus subject areas

  • Medicine(all)

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