Cited by 81Amyotrophic Lateral Sclerosis ResearchMitochondrial Function and PathologyEpigenetics and DNA Methylation

Mitochondrial DNA Copy Number and D-Loop Region Methylation in Carriers of Amyotrophic Lateral Sclerosis Gene Mutations

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Stoccoro, Andrea, Mosca, Lorena, Carnicelli, Vittoria, Cavallari, Ugo, Lunetta, Christian, Marocchi, Alessandro, Migliore, Lucia, Coppedè, Fabio·2018·Epigenomics

Abstract

AIM: To investigate mitochondrial DNA (mtDNA) copy number and D-loop region methylation in carriers of SOD1, TARDBP, FUS and C9orf72 mutations. METHODS: Investigations were performed in blood DNA from 114 individuals, including amyotrophic lateral sclerosis (ALS) patients, presymptomatic carriers and noncarrier family members. RESULTS: Increased mtDNA copy number (p = 0.0001) was observed in ALS patients, and particularly in those with SOD1 or C9orf72 mutations. SOD1 mutation carriers showed also a significant decrease in D-loop methylation levels (p = 0.003). An inverse correlation between D-loop methylation levels and the mtDNA copy number (p = 0.0005) was observed. CONCLUSION: Demethylation of the D-loop region could represent a compensatory mechanism for mtDNA upregulation in carriers of ALS-linked SOD1 mutations.

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Crossref · 10.2217/epi-2018-0072

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Authors
Stoccoro, A., Mosca, L., Carnicelli, V., Cavallari, U., Lunetta, C., Marocchi, A., Migliore, L., & Coppedè, F.
Affiliations
  • University of Siena (IT)
  • Azienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda (IT)
  • University of Pisa (IT)
Venue
Epigenomics
Published
2018-08-08
Volume
10
Issue
11
Pages
1431-1443
ISSN
  • 1750-1911 (ISSN-L)
  • 1750-192X
OpenAlex
W2885475563
Cited by
80
References
57
Citations by year
2026: 3 · 2025: 9 · 2024: 17 · 2023: 11 · 2022: 16 · 2021: 9 · 2020: 11 · 2019: 3
FWCI
3.90
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Epigenomics (publishedVersion)
  • PubMed (publishedVersion)
  • CINECA IRIS Institutial research information system (University of Pisa) (submittedVersion, other-oa)
Funders
researcher’s intramural funds
Topics
  • Health Sciences › Medicine › Neurology › Amyotrophic Lateral Sclerosis Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Mitochondrial Function and Pathology
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
amyotrophic lateral sclerosis, mitochondrial DNA copy number, SOD1 mutations, C9orf72 mutation, TARDBP mutations, FUS mutations, presymptomatic carriers, compensatory mechanisms, epigenetics
MeSH terms
Superoxide Dismutase-1, C9orf72 Protein, Adult, Aged, Amyotrophic Lateral Sclerosis, DNA-Binding Proteins, DNA, Mitochondrial, Female, Heterozygote, Humans, Male, Middle Aged, Mutation, DNA Methylation, RNA-Binding Protein FUS, DNA Copy Number Variations

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