Regulation of chondrocyte growth and differentiation by fibroblast growth factor receptor 3.

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Abstract

Both gain-of-function and loss-of-function mutations in fibroblast growth factor receptor 3 (Fgfr3) have revealed unique roles for this receptor during skeletal development. Loss-of-function alleles of Fgfr3 lead to an increase in the size of the hypertrophic zone, delayed closure of the growth plate and the subsequent overgrowth of long bones. Gain-of-function mutations in Fgfr3 have been genetically linked to autosomal dominant dwarfing chondrodysplasia syndromes where both the size and architecture of the epiphyseal growth plate are altered. Analysis of these phenotypes and the biochemical consequences of the mutations in FGFR3 demonstrate that FGFR3-mediated signalling is an essential negative regulator of endochondral ossification.

Original languageEnglish
Pages (from-to)63-76; discussion 76-7680, 272-282
JournalNovartis Foundation symposium
Volume232
StatePublished - 2001

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