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Methodology for Accurate Detection of Mitochondrial DNA Methylation
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DNA methylation impact on Fabry disease.

Teodolinda Di Risi1,2, Roberta Vinciguerra1,2, Mariella Cuomo1,3

  • 1CEINGE - Biotecnologie Avanzate, Via Gaetano Salvatore, 486, 80145, Naples, Italy.

Clinical Epigenetics
|February 3, 2021
PubMed
Summary

Fabry disease (FD) in women shows varied symptoms due to X-chromosome inactivation. DNA methylation at the GLA gene promoter may also influence disease, offering potential for predicting symptom development in carriers.

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Area of Science:

  • Genetics and Epigenetics
  • Rare Diseases
  • Lysosomal Storage Disorders

Background:

  • Fabry disease (FD) is a rare X-linked disorder caused by GLA gene mutations, leading to globotriaosylceramide (Gb3) accumulation.
  • Women with FD exhibit diverse symptoms, ranging from mild to severe, due to complex genetic factors.

Purpose of the Study:

  • To review and evaluate the role of DNA methylation in Fabry disease.
  • To assess the potential of DNA methylation analysis in predicting disease manifestation in female carriers.

Main Methods:

  • Critical evaluation of recent literature on DNA methylation in Fabry disease.
  • Analysis of studies focusing on allele-specific DNA methylation at the GLA gene promoter.

Main Results:

  • Phenotypic variability in heterozygous women is influenced by X-chromosome inactivation (XCI) skewness.
  • Allele-specific DNA methylation at the GLA promoter may impact disease onset and severity, beyond XCI.
  • Current research on DNA methylation in FD is limited but shows promise.

Conclusions:

  • DNA methylation analysis, particularly allele-specific methods at the GLA promoter, may provide crucial insights into FD pathogenesis in women.
  • Further research and advanced methylation analyses are needed to develop predictive epigenetic signatures for early intervention in female carriers.