Generation of the first autosomal dominant osteopetrosis type II (ADO2) disease models.
Bone
; 59: 66-75, 2014 Feb.
Article
em En
| MEDLINE
| ID: mdl-24185277
ABSTRACT
Autosomal dominant osteopetrosis type II (ADO2) is a heritable osteosclerotic disorder dependent on osteoclast impairment. In most patients it results from heterozygous missense mutations in the chloride channel 7 (CLCN7) gene, encoding for a 2Cl(-)/1H(+) antiporter. By a knock-in strategy inserting a missense mutation in the Clcn7 gene, our two research groups independently generated mouse models of ADO2 on different genetic backgrounds carrying the homolog of the most frequent heterozygous mutation (p.G213R) in the Clcn7 gene found in humans. Our results demonstrate that the heterozygous model holds true presenting with higher bone mass, increased numbers of poorly resorbing osteoclasts and a lethal phenotype in the homozygous state. Considerable variability is observed in the heterozygous mice according with the mouse background, suggesting that modifier genes could influence the penetrance of the disease gene.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Osteopetrose
/
Genes Dominantes
Limite:
Animals
Idioma:
En
Ano de publicação:
2014
Tipo de documento:
Article