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  • Drögemüller, Cord (author)

A deletion in the N-myc downstream regulated gene 1 (NDRG1) gene in Greyhounds with polyneuropathy

  • Article/chapterEnglish2010

Publisher, publication year, extent ...

  • 2010-06-22
  • Public Library of Science (PLoS),2010
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:uu-135711
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-135711URI
  • https://doi.org/10.1371/journal.pone.0011258DOI
  • https://res.slu.se/id/publ/118181URI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • The polyneuropathy of juvenile Greyhound show dogs shows clinical similarities to the genetically heterogeneous Charcot-Marie-Tooth (CMT) disease in humans. The pedigrees containing affected dogs suggest monogenic autosomal recessive inheritance and all affected dogs trace back to a single male. Here, we studied the neuropathology of this disease and identified a candidate causative mutation. Peripheral nerve biopsies from affected dogs were examined using semi-thin histology, nerve fibre teasing and electron microscopy. A severe chronic progressive mixed polyneuropathy was observed. Seven affected and 17 related control dogs were genotyped on the 50k canine SNP chip. This allowed us to localize the causative mutation to a 19.5 Mb interval on chromosome 13 by homozygosity mapping. The NDRG1 gene is located within this interval and NDRG1 mutations have been shown to cause hereditary motor and sensory neuropathy-Lom in humans (CMT4D). Therefore, we considered NDRG1 a positional and functional candidate gene and performed mutation analysis in affected and control Greyhounds. A 10 bp deletion in canine NDRG1 exon 15 (c.1080_1089delTCGCCTGGAC) was perfectly associated with the polyneuropathy phenotype of Greyhound show dogs. The deletion causes a frame shift (p.Arg361SerfsX60) which alters several amino acids before a stop codon is encountered. A reduced level of NDRG1 transcript could be detected by RT-PCR. Western blot analysis demonstrated an absence of NDRG1 protein in peripheral nerve biopsy of an affected Greyhound. We thus have identified a candidate causative mutation for polyneuropathy in Greyhounds and identified the first genetically characterized canine CMT model which offers an opportunity to gain further insights into the pathobiology and therapy of human NDRG1 associated CMT disease. Selection against this mutation can now be used to eliminate polyneuropathy from Greyhound show dogs.

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Added entries (persons, corporate bodies, meetings, titles ...)

  • Becker, Doreen (author)
  • Kessler, Barbara (author)
  • Kemter, Elisabeth (author)
  • Tetens, Jens (author)
  • Jurina, Konrad (author)
  • Hultin Jäderlund, KarinSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för kliniska vetenskaper (KV),Department of Clinical Sciences,Norwegian School of Veterinary Science (NVH)(Swepub:slu)51450 (author)
  • Flagstad, Annette (author)
  • Perloski, MicheleBroad Institute(Swepub:slu)96314 (author)
  • Lindblad-Toh, KerstinUppsala universitet,Institutionen för medicinsk biokemi och mikrobiologi(Swepub:uu)kerli865 (author)
  • Matiasek, Kaspar (author)
  • Sveriges lantbruksuniversitetInstitutionen för kliniska vetenskaper (KV) (creator_code:org_t)
  • Sveriges lantbruksuniversitet

Related titles

  • In:PloS one: Public Library of Science (PLoS)5:6, s. e11258-1932-6203

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