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Australian Cattle Dogs with Neuronal Ceroid Lipofuscinosis are Homozygous for a CLN5 Nonsense Mutation Previously Identified in Border Collies

Kolicheski, A. ; Johnson, G.S. ; O'Brien, D.P. ; Mhlanga‐Mutangadura, T. ; Gilliam, D. ; Guo, J. ; Anderson‐Sieg, T.D. ; Schnabel, R.D. ; Taylor, J.F. ; Lebowitz, A. ; Swanson, B. ; Hicks, D. ; Niman, Z.E. ; Wininger, F.A. ; Carpentier, M.C. ; Katz, M.L.

Journal of veterinary internal medicine, 2016-07, Vol.30 (4), p.1149-1158 [Periódico revisado por pares]

United States: John Wiley & Sons, Inc

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Título:
Australian Cattle Dogs with Neuronal Ceroid Lipofuscinosis are Homozygous for a CLN5 Nonsense Mutation Previously Identified in Border Collies
Autor: Kolicheski, A. ; Johnson, G.S. ; O'Brien, D.P. ; Mhlanga‐Mutangadura, T. ; Gilliam, D. ; Guo, J. ; Anderson‐Sieg, T.D. ; Schnabel, R.D. ; Taylor, J.F. ; Lebowitz, A. ; Swanson, B. ; Hicks, D. ; Niman, Z.E. ; Wininger, F.A. ; Carpentier, M.C. ; Katz, M.L.
Assuntos: Alleles ; Animal euthanasia ; Animal tissues ; Animals ; Atrophy ; Autofluorescence ; Brain research ; Cattle ; Codon, Nonsense ; Deoxyribonucleic acid ; Diagnosis ; Disease ; DNA ; Dog Diseases - genetics ; Dogs ; Female ; Fluorescence ; Genes ; Genetic engineering ; Genetic Predisposition to Disease ; Genomes ; Genotyping ; Heterozygotes ; Lysosomal storage disease ; Male ; Membrane Proteins - genetics ; Microscopy ; Molecular genetics ; Mutation ; Neurodegenerative diseases ; Neurological diseases ; Neuronal ceroid lipofuscinosis ; Neuronal Ceroid-Lipofuscinoses - genetics ; Neuronal Ceroid-Lipofuscinoses - veterinary ; NMR ; Nonsense mutation ; Nuclear magnetic resonance ; Nucleotide sequence ; Pedigree ; SMALL ANIMAL ; Ultrastructure ; Veterinarians ; Whole‐genome sequence
É parte de: Journal of veterinary internal medicine, 2016-07, Vol.30 (4), p.1149-1158
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SourceType-Scholarly Journals-1
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The work was performed at the University of Missouri and at collaborating private veterinary clinics.
Descrição: Background Neuronal ceroid lipofuscinosis (NCL), a fatal neurodegenerative disease, has been diagnosed in young adult Australian Cattle Dogs. Objective Characterize the Australian Cattle Dog form of NCL and determine its molecular genetic cause. Animals Tissues from 4 Australian Cattle Dogs with NCL‐like signs and buccal swabs from both parents of a fifth affected breed member. Archived DNA samples from 712 individual dogs were genotyped. Methods Tissues were examined by fluorescence, electron, and immunohistochemical microscopy. A whole‐genome sequence was generated for 1 affected dog. A TaqMan allelic discrimination assay was used for genotyping. Results The accumulation of autofluorescent cytoplasmic storage material with characteristic ultrastructure in tissues from the 4 affected dogs supported a diagnosis of NCL. The whole‐genome sequence contained a homozygous nonsense mutation: CLN5:c.619C>T. All 4 DNA samples from clinically affected dogs tested homozygous for the variant allele. Both parents of the fifth affected dog were heterozygotes. Archived DNA samples from 346 Australian Cattle Dogs, 188 Border Collies, and 177 dogs of other breeds were homozygous for the reference allele. One archived Australian Cattle Dog sample was from a heterozygote. Conclusions and Clinical Importance The homozygous CLN5 nonsense is almost certainly causal because the same mutation previously had been reported to cause a similar form of NCL in Border Collies. Identification of the molecular genetic cause of Australian Cattle Dog NCL will allow the use of DNA tests to confirm the diagnosis of NCL in this breed.
Editor: United States: John Wiley & Sons, Inc
Idioma: Inglês

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Australian Cattle Dogs with Neuronal Ceroid Lipofuscinosis are Homozygous for a CLN5 Nonsense Mutation Previously Identified in Border Collies

Kolicheski, A. ; Johnson, G.S. ; O'Brien, D.P. ; Mhlanga‐Mutangadura, T. ; Gilliam, D. ; Guo, J. ; Anderson‐Sieg, T.D. ; Schnabel, R.D. ; Taylor, J.F. ; Lebowitz, A. ; Swanson, B. ; Hicks, D. ; Niman, Z.E. ; Wininger, F.A. ; Carpentier, M.C. ; Katz, M.L.

United States: John Wiley & Sons, Inc

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