Skip to main content
Log in

Tissue distribution of mutant mitochondrial DNA in mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes (MELAS)

  • Published:
Journal of Inherited Metabolic Disease

Summary

We analysed the distribution of mutant mitochondrial DNA (mtDNA) with A-to-G substitution mutation of tRNALeu(UUR) in various autopsied tissues from a patient with mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes (MELAS). There was no significant difference in the proportion (76–86%) of mutant mtDNA in many tissues, except in the lung and spleen. Unequal partitioning of mtDNA in somatic cells appears less prominent than that in germ cells.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Ciafaloni E, Ricci E, Servidei S et al (1991) Widespread tissue distribution of a tRNALeu(UUR) mutation in the mitochondrial DNA of a patient with MELAS syndrome.Neurology 41: 1663–1665.

    Google Scholar 

  • Ciafaloni E, Ricci E, Shanske S et al (1992) MELAS: Clinical features, biochemistry, and molecular genetics.Ann Neurol 31: 391–398.

    Google Scholar 

  • Enter C, Müller-Höcker J, Zierz S et al (1991) A specific point mutation in the mitochondrial genome of Caucasians with MELAS.Hum Genet 88: 233–236.

    Google Scholar 

  • Goto Y, Nonaka I, Horai S (1990) A mutation in the tRNALeu(UUR) gene associated with MELAS subgroup of mitochondrial encephalomyopathies.Nature 348: 651–653.

    Google Scholar 

  • Goto Y, Horai S, Matsuoka T et al (1992) Mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like epsidoes (MELAS): A correlative study of the clinical features and mitochondrial DNA mutation.Neurology 42: 545–550.

    Google Scholar 

  • Hayashi J, Ohta S, Kikuchi E et al (1991) Introduction of disease-related mitochondrial DNA deletions into HeLa cells lacking mitochondrial DNA results in mitochondrial dysfunction.Proc Natl Acad Sci 88: 10614–10618.

    Google Scholar 

  • Inui K, Fukushima H, Tsukamoto H et al (1992) Mitochondrial encephalomyopathies with the mutation of the mitochondrial tRNALeu(UUR) gene.J Pediatr 120: 62–66.

    Google Scholar 

  • Ito S, Kobayashi Y, Ichihashi H et al (1991) 33th Ann Mtg, Japanese Society of Child Neurology.No To Hattatsu 24S: S161 (in Japanese, abstr.).

  • Ozawa T, Yoneda M, Tanaka M et al (1988) Maternal inheritance of deleted mitochondrial DNA in a family with mitochondrial myopathy.Biochem Biophys Res Commun 154: 1240–1247.

    Google Scholar 

  • Pavlakis SG, Phillips PC, DiMauro S et al (1984) Mitochondrial myopathy, encephalopathy, lactic acidosis, and strokelike episodes: A distinctive clinical syndrome.Ann Neurol 16: 481–488.

    Google Scholar 

  • Sato W, Hayasaka K, Komatsu K et al (1992) Genetic analysis of three pedigrees of mitochondrial myopathy, encephalopathy, lactic acidosis, and strokelike episodes (MELAS).Am J Hum Genet 50: 655–657.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Shoji, Y., Sato, W., Hayasaka, K. et al. Tissue distribution of mutant mitochondrial DNA in mitochondrial myopathy, encephalopathy, lactic acidosis and stroke-like episodes (MELAS). J Inherit Metab Dis 16, 27–30 (1993). https://doi.org/10.1007/BF00711311

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00711311

Keywords

Navigation