Generation of the first autosomal dominant osteopetrosis type II (ADO2) disease models.
Generation of the first autosomal dominant osteopetrosis type II (ADO2) disease models.
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DOI：
10.1016/j.bone.2013.10.021
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发表时间：
2014-02
期刊：
影响因子：
4.1
通讯作者：
Del Fattore, Andrea
中科院分区：
文献类型：
--
作者：
Alam, Imranul;Gray, Amie K.;Chu, Kang;Ichikawa, Shoji;Mohammad, Khalid S.;Capannolo, Marta;Capulli, Mattia;Maurizi, Antonio;Muraca, Maurizio;Teti, Anna;Econs, Michael J.;Del Fattore, Andrea
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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