Cited by 77Cancer-related molecular mechanisms researchTreatment of Major DepressionSuicide and Self-Harm Studies

Global long non-coding RNA expression in the rostral anterior cingulate cortex of depressed suicides

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Zhou, Yi, Lutz, Pierre-Eric, Wang, Yu Chang, Ragoussis, Jiannis, Turecki, Gustavo·2018·Translational Psychiatry

Abstract

Long non-coding RNAs (lncRNAs) are an emerging class of regulatory RNA that may be implicated in psychiatric disorders. Here we performed RNA-sequencing in the rostral anterior cingulate cortex of 26 depressed suicides and 24 matched controls. We first performed differential lncRNA expression analysis, and then conducted Weighted Gene Co-expression Network Analysis (WGCNA) to identify co-expression modules associating with depression and suicide. We identified 23 differentially expressed lncRNAs (FDR < 0.1) as well as their differentially expressed overlapping and antisense protein-coding genes. Several of these overlapping or antisense genes were associated with interferon signaling, which is a component of the innate immune response. Using WGCNA, we identified modules of highly co-expressed genes associated with depression and suicide and found protein-coding genes highly connected to differentially expressed lncRNAs within these modules. These protein-coding genes were located distal to their associated lncRNAs and were found to be part of several GO terms enriched in the significant modules, which include: cytoskeleton organization, plasma membrane, cell adhesion, nucleus, DNA-binding, and regulation of dendrite development and morphology. Altogether, we report that lncRNAs are differentially expressed in the brains of depressed individuals who died by suicide and may represent regulators of important molecular functions and biological processes.

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  • Levels of 60% (217 out of 364) of the 364 lncRNAs expressed in the rostral cingulate cortex of normal individuals differed from those in MDD.

    “Levels of 60% (217 out of 364) of the 364 lncRNAs expressed in the rostral cingulate cortex of normal individuals differed from those in MDD.310”

    From Epigenetic regulation in major depression and other stress-related disorders: molecular mechanisms, clinical relevance and therapeutic potential (2023) · cites this paper as [310]

    The Results section, under “Differential lncRNA expression analysis,” says that 364 of 2,670 analyzed lncRNAs were differentially expressed at nominal p < 0.05. The 217 of 364 figure is the number of those differentially expressed lncRNAs that were downregulated in depressed suicides—not the number that differed from controls. (LLM, conf=0.94)

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  • miRNA and lncRNA levels in blood distinguish depressed patients from healthy controls.

    “Because miRNA and lncRNA levels in blood distinguish depressed patients from healthy controls,243,310,387”

    From Epigenetic regulation in major depression and other stress-related disorders: molecular mechanisms, clinical relevance and therapeutic potential (2023) · cites this paper as [310]

    The Discussion section “Differential lncRNA expression in major depression and suicide” (page not supplied) reports prior findings of altered lncRNA expression in blood and PBMCs from depressed patients. It does not report that blood miRNA levels distinguish depressed patients from healthy controls, or establish that the blood lncRNA differences can distinguish individual patients from controls. This paper’s own lncRNA analysis concerns brain tissue, not blood. (LLM, conf=0.85)

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Authors
Zhou, Y., Lutz, P.-E., Wang, Y. C., Ragoussis, J., & Turecki, G.
Affiliations
  • McGill University (CA)
  • McGill University and Génome Québec Innovation Centre (CA)
Corresponding author
Turecki, Gustavo
Venue
Translational Psychiatry
Published
2018-10-18
Volume
8
Issue
1
Pages
224-224
ISSN
2158-3188 (ISSN-L)
OpenAlex
W2897445681
Cited by
77
References
60
Citations by year
2026: 2 · 2025: 14 · 2024: 12 · 2023: 11 · 2022: 9 · 2021: 17 · 2020: 5 · 2019: 7
FWCI
2.19
Type
journal article
Language
en
Open access
Locations
  • Translational Psychiatry (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
Funders
  • Pfizer
  • Genome Canada
  • National Alliance for Research on Schizophrenia and Depression
  • Fondation pour la Recherche Médicale
  • National Institutes of Health
  • Canadian Institutes of Health Research (MOP119430, MOP11260, MOP93775, MOP119429, MOP93775, MOP11260, MOP119429, and MOP119430, FDN148374)
  • Fonds de Recherche du Québec - Santé
  • National Institute on Drug Abuse (R01DA033684)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer-related molecular mechanisms research
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Social Sciences › Psychology › Clinical Psychology › Suicide and Self-Harm Studies
Keywords
long non-coding RNA, depression, suicide, rostral anterior cingulate cortex, lncRNA expression, interferon signaling, innate immune response, gene co-expression modules, antisense gene, dendrite formation, mental illness
MeSH terms
Major Depressive Disorder, Female, Gene Expression Regulation, Gyrus Cinguli, Humans, Male, Suicide, Sequence Analysis, RNA, Transcriptome, RNA, Long Noncoding

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