Using the shared genetics of dystonia and ataxia to unravel their pathogenesis

Esther A. R. Nibbeling, Catherine C. S. Delnooz, Tom J. de Koning, Richard J. Sinke, Hyder A. Jinnah, Marina A. J. Tijssen, Dineke S. Verbeek*

*Corresponding author for this work

Research output: Contribution to journalReview articleAcademicpeer-review

25 Citations (Scopus)

Abstract

In this review we explore the similarities between spinocerebellar ataxias and dystonias, and suggest potentially shared molecular pathways using a gene co-expression.network approach. The spinocerebellar ataxias are a group of neurodegenerative disorders characterized by coordination problems caused mainly by atrophy of the cerebellum. The dystonias are another group of neurological' movement disorders linked to basal ganglia dysfunction, although evidence is now pointing to cerebellar involvement as well. Our gene co -expression network approach identified 99 shared genes and showed the involvement of two major pathways: synaptic transmission and neurodevelopment. These pathways overlapped in the two disorders, with a large role for GABAergic signaling in both. The overlapping pathways may provide novel targets for disease therapies. We need to prioritize variants obtained by whole exome sequencing in the genes associated with these pathways in the search for new pathogenic variants, which can than be used to help in the genetic counseling of patients and their families. (C) 2017 Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)22-39
Number of pages18
JournalNeuroscience and Biobehavioral Reviews
Volume75
DOIs
Publication statusPublished - Apr-2017

Keywords

  • Spinocerebellar ataxia
  • Dystonia
  • Gene network
  • Synaptic transmission
  • Neurodevelopment
  • Neurodegeneration
  • Molecular pathways
  • Pathophysiology
  • DOMINANT CEREBELLAR-ATAXIA
  • POSITIVE MYOCLONUS-DYSTONIA
  • WHITE-MATTER CHANGES
  • CULTURED HIPPOCAMPAL-NEURONS
  • PRIMARY CERVICAL DYSTONIA
  • PRIMARY TORSION DYSTONIA
  • POTASSIUM CHANNEL GENE
  • MACHADO-JOSEPH-DISEASE
  • CENTRAL-NERVOUS-SYSTEM
  • DOPAMINE D1 RECEPTOR

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