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Loss of PCLO function underlies pontocerebellar hypoplasia type III.
Ahmed, Mustafa Y; Chioza, Barry A; Rajab, Anna; Schmitz-Abe, Klaus; Al-Khayat, Aisha; Al-Turki, Saeed; Baple, Emma L; Patton, Michael A; Al-Memar, Ali Y; Hurles, Matthew E; Partlow, Jennifer N; Hill, R Sean; Evrony, Gilad D; Servattalab, Sarah; Markianos, Kyriacos; Walsh, Christopher A; Crosby, Andrew H; Mochida, Ganeshwaran H.
Afiliação
  • Ahmed MY; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Chioza BA; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Rajab A; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Schmitz-Abe K; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Al-Khayat A; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Al-Turki S; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Baple EL; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Patton MA; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Al-Memar AY; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Hurles ME; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Partlow JN; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Hill RS; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Evrony GD; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Servattalab S; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Markianos K; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Walsh CA; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Crosby AH; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
  • Mochida GH; From Monogenic Molecular Genetics (M.Y.A., B.A.C., E.L.B., A.H.C.), University of Exeter Medical School, RILD Wellcome Wolfson Centre, Royal Devon & Exeter NHS Foundation Trust, Exeter; Centre for Human Genetics (M.Y.A., B.A.C., E.L.B., M.A.P., A.H.C.), St. George's, University of London, UK; Na
Neurology ; 84(17): 1745-50, 2015 Apr 28.
Article em En | MEDLINE | ID: mdl-25832664
ABSTRACT

OBJECTIVE:

To identify the genetic cause of pontocerebellar hypoplasia type III (PCH3).

METHODS:

We studied the original reported pedigree of PCH3 and performed genetic analysis including genome-wide single nucleotide polymorphism genotyping, linkage analysis, whole-exome sequencing, and Sanger sequencing. Human fetal brain RNA sequencing data were then analyzed for the identified candidate gene.

RESULTS:

The affected individuals presented with severe global developmental delay and seizures starting in the first year of life. Brain MRI of an affected individual showed diffuse atrophy of the cerebrum, cerebellum, and brainstem. Genome-wide single nucleotide polymorphism analysis confirmed the linkage to chromosome 7q we previously reported, and showed no other genomic areas of linkage. Whole-exome sequencing of 2 affected individuals identified a shared homozygous, nonsense variant in the PCLO (piccolo) gene. This variant segregated with the disease phenotype in the pedigree was rare in the population and was predicted to eliminate the PDZ and C2 domains in the C-terminus of the protein. RNA sequencing data of human fetal brain showed that PCLO was moderately expressed in the developing cerebral cortex.

CONCLUSIONS:

Here, we show that a homozygous, nonsense PCLO mutation underlies the autosomal recessive neurodegenerative disorder, PCH3. PCLO is a component of the presynaptic cytoskeletal matrix, and is thought to be involved in regulation of presynaptic proteins and synaptic vesicles. Our findings suggest that PCLO is crucial for the development and survival of a wide range of neuronal types in the human brain.
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Texto completo: 1 Base de dados: MEDLINE Assunto principal: Neuropeptídeos / Códon sem Sentido / Proteínas do Citoesqueleto Tipo de estudo: Prognostic_studies Limite: Child / Humans País como assunto: Asia Idioma: En Ano de publicação: 2015 Tipo de documento: Article
Texto completo
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Base de dados: MEDLINE Assunto principal: Neuropeptídeos / Códon sem Sentido / Proteínas do Citoesqueleto Tipo de estudo: Prognostic_studies Limite: Child / Humans País como assunto: Asia Idioma: En Ano de publicação: 2015 Tipo de documento: Article