Screening for a Canine Model of Choroideremia Exclusively Identifies Nonpathogenic CHM Variants.

Abstract : Choroideremia is an X-linked, progressive photoreceptor degeneration disorder due to mutations in CHM. In addition to an atrophy of the outer retina, affected individuals present with a characteristic atrophy of the choroid. To search for a canine model, we screened the CHM gene of 37 dogs (22 breeds) with various forms of retinal dystrophies. We found 21 variations in 13 breeds (17 detected in only one breed and 4 shared by two or more) with 43% segregating in the same pedigree, a Great Dane female and a female offspring. Of particular interest were an exonic missense variation and a 3-bp intronic deletion near a splice acceptor site. However, although not detected in unrelated healthy Great Danes, these variants were nonpathogenic since they did not segregate with the disease phenotype in the pedigree. These results suggest that a CHM dog model may not be viable, as is the case for mouse and zebrafish.
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Article dans une revue
Ophthalmic Research, Karger, 2010, 45 (3), pp.155-163. 〈10.1159/000313992〉
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Contributeur : Hervé De Villemeur <>
Soumis le : mercredi 29 septembre 2010 - 17:06:20
Dernière modification le : lundi 11 juin 2018 - 16:46:01

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Lorenne Robert, Audrey Sénéchal, Béatrice Bocquet, Laetitia Herbin, Gilles Chaudieu, et al.. Screening for a Canine Model of Choroideremia Exclusively Identifies Nonpathogenic CHM Variants.. Ophthalmic Research, Karger, 2010, 45 (3), pp.155-163. 〈10.1159/000313992〉. 〈inserm-00522112〉

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