Recessive deoxyguanosine kinase deficiency causes juvenile onset mitochondrial myopathy

Adam H. Buchaklian, Daniel Helbling, Stephanie Ware, David P. Dimmock

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Deoxyguanosine kinase (DGUOK) (MIM#601465) deficiency was originally described as the cause of an infantile onset hepatocerebral mitochondrial disease [1]. The classic features of this disorder include significant hepatic failure with nystagmus and hypotonia. Mitochondrial DNA studies reveal significant mitochondrial DNA depletion in the affected tissues. Subsequently it has been shown that the same mutations in this gene may present with isolated acute liver failure without cerebral involvement. In this paper we studied the mitochondrial DNA depletion in cells from a patient presenting with mitochondrial myopathy caused by a novel mutation in DGUOK. Subsequently we developed the method to diagnose this condition using MyoD induced fibroblasts to study the muscle specific phenotype. In addition, supplementation of MyoD induced fibroblasts with dAMP and dGMP resulted in a restoration of mtDNA quantity.

Original languageEnglish (US)
Pages (from-to)92-94
Number of pages3
JournalMolecular Genetics and Metabolism
Volume107
Issue number1-2
DOIs
StatePublished - Sep 2012
Externally publishedYes

Fingerprint

deoxyguanosine kinase
Mitochondrial Myopathies
Mitochondrial DNA
Fibroblasts
Mitochondrial Diseases
Mutation
Muscle Hypotonia
Eye movements
Acute Liver Failure
Liver Failure
Liver
Restoration
Muscle
Genes
Tissue
Phenotype
Muscles
Deoxyguanosine Kinase Deficiency

Keywords

  • DGUOK deficiency
  • Hepatocerebral
  • Mitochondrial DNA depletion

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Genetics
  • Endocrinology
  • Endocrinology, Diabetes and Metabolism

Cite this

Recessive deoxyguanosine kinase deficiency causes juvenile onset mitochondrial myopathy. / Buchaklian, Adam H.; Helbling, Daniel; Ware, Stephanie; Dimmock, David P.

In: Molecular Genetics and Metabolism, Vol. 107, No. 1-2, 09.2012, p. 92-94.

Research output: Contribution to journalArticle

Buchaklian, Adam H. ; Helbling, Daniel ; Ware, Stephanie ; Dimmock, David P. / Recessive deoxyguanosine kinase deficiency causes juvenile onset mitochondrial myopathy. In: Molecular Genetics and Metabolism. 2012 ; Vol. 107, No. 1-2. pp. 92-94.
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