Cited by 379Epigenetics and DNA MethylationTreatment of Major DepressionGenetic Associations and Epidemiology

DNA Methylation Profiles of the Brain-Derived Neurotrophic Factor (BDNF) Gene as a Potent Diagnostic Biomarker in Major Depression

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Fuchikami, Manabu, Morinobu, Shigeru, Segawa, Masahiro, Okamoto, Yasumasa, Yamawaki, Shigeto, Ozaki, Norio, Inoue, Takeshi, Kusumi, Ichiro +3 more·2011·PLoS ONE

Abstract

Major depression, because of its recurring and life-threatening nature, is one of the top 10 diseases for global disease burden. Major depression is still diagnosed on the basis of clinical symptoms in patients. The search for specific biological markers is of great importance to advance the method of diagnosis for depression. We examined the methylation profile of 2 CpG islands (I and IV) at the promoters of the brain-derived neurotrophic factor (BDNF) gene, which is well known to be involved in the pathophysiology of depression. We analyzed genomic DNA from peripheral blood of 20 Japanese patients with major depression and 18 healthy controls to identify an appropriate epigenetic biomarker to aid in the establishment of an objective system for the diagnosis of depression. Methylation rates at each CpG unit was measured using a MassArray® system (SEQUENOM), and 2-dimensional hierarchical clustering analyses were undertaken to determine the validity of these methylation profiles as a diagnostic biomarker. Analyses of the dendrogram from methylation profiles of CpG I, but not IV, demonstrated that classification of healthy controls and patients at the first branch completely matched the clinical diagnosis. Despite the small number of subjects, our results indicate that classification based on the DNA methylation profiles of CpG I of the BDNF gene may be a valuable diagnostic biomarker for major depression.

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Crossref · 10.1371/journal.pone.0023881

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  • In depression, studies report low peripheral BDNF levels and higher promoter methylation, while antidepressants and electroconvulsive therapy (ECT) increase BDNF expression and reverse methylation.

    “In depression, studies report low peripheral BDNF levels and higher promoter methylation, while antidepressants and electroconvulsive therapy (ECT) increase BDNF expression and reverse methylation”

    From The clinical use of epigenetics in psychiatry: a narrative review of epigenetic mechanisms, key candidate genes, and precision psychiatry (2025) · cites this paper as [63]

    The Introduction (page unavailable) reports decreased blood BDNF in major depression and antidepressant-stimulated increases in BDNF. The Discussion reports distinct BDNF methylation profiles in patients, but not a general increase in promoter methylation; it says whether antidepressants affect blood DNA methylation is uncertain. The paper does not address ECT-induced BDNF expression or methylation reversal. (LLM, conf=0.90)

    Experimental — accuracy not yet measured
  • Altered patterns of BDNF DNA methylation have been found in patients with cognitive impairments.

    “and altered patterns of BDNF DNA methylation has been found in patients with cognitive impairments [ 167 , 169 , 170 ].”
  • The DNA methylation profile of two CpG islands in the BDNF promoter and exon I was significantly different between depressed patients and healthy controls.

    “The DNA methylation profile of two CpG islands in the BDNF (BDNF-I and -IV) promoter and exon I was significantly different between depressed patients and healthy controls.”

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Authors
Fuchikami, M., Morinobu, S., Segawa, M., Okamoto, Y., Yamawaki, S., Ozaki, N., Inoue, T., Kusumi, I., Koyama, T., Tsuchiyama, K., & Terao, T.
Affiliations
  • Hiroshima University (JP)
  • Nagoya University (JP)
  • Hokkaido University (JP)
  • Oita University (JP)
Corresponding author
Morinobu, Shigeru
Venue
PLoS ONE
Published
2011-08-30
Volume
6
Issue
8
Pages
e23881
ISSN
1932-6203 (ISSN-L)
OpenAlex
W2074918990
Cited by
378
References
35
Citations by year
2026: 3 · 2025: 11 · 2024: 15 · 2023: 10 · 2022: 21 · 2021: 57 · 2020: 24 · 2019: 29 · 2018: 27 · 2017: 34 · 2016: 34 · 2015: 32 · 2014: 38 · 2013: 24 · 2012: 18
FWCI
10.53
Type
journal article
Language
en
Open access
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Institutional Repositories DataBase (IRDB) (acceptedVersion, other-oa)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
  • Figshare (submittedVersion, cc-by)
  • Hiroshima University Institutional Repository (submittedVersion, other-oa)
  • Hiroshima University Acedemic Information Repository (Hiroshima University) (submittedVersion, cc-by)
Funders
  • Japan Society for the Promotion of Science (21591478)
  • Core Research for Evolutional Science and Technology
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Associations and Epidemiology
Keywords
major depressive disorder, DNA methylation, brain-derived neurotrophic factor, BDNF gene, epigenetic biomarkers, diagnostic biomarkers, CpG islands, promoter methylation, peripheral blood DNA, depression diagnosis
MeSH terms
Adult, Major Depressive Disorder, Depressive Disorder, Major, Exons, Female, Humans, Male, Middle Aged, Promoter Regions, Genetic, Biomarkers, Case-Control Studies, CpG Islands, DNA Methylation, Brain-Derived Neurotrophic Factor, Epigenesis, Genetic

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