Cited by 65Circular RNAs in diseasesTreatment of Major DepressionTryptophan and brain disorders

Potential clinical value of circular RNAs as peripheral biomarkers for the diagnosis and treatment of major depressive disorder

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Shi, Yachen, Song, Ruize, Wang, Zan, Zhang, Hongxing, Zhu, Jianli, Yue, Yuanping, Zhao, Yang, Zhang, Zhijun·2021·eBioMedicine

Abstract

BACKGROUND: circular RNAs (circRNAs) are expressed abundantly in the brain and are implicated in the pathophysiology of neuropsychiatric disease. However, the potential clinical value of circRNAs in major depressive disorder (MDD) remains unclear. METHODS: RNA sequencing was conducted in whole-blood samples in a discovery set (7 highly homogeneous MDD patients and 7 matched healthy controls [HCs]). The differential expression of circRNAs was verified in an independent validation set. The interventional study was conducted to assess the potential effect of the antidepressive treatment on the circRNA expression. FINDINGS: in the validation set, compared with 52 HCs, significantly decreased circFKBP8 levels (Diff: -0.24; [95% CI -0.39 ~ -0.09]) and significantly elevated circMBNL1 levels (Diff: 0.37; [95% CI 0.09 ~ 0.64]) were observed in 53 MDD patients. The expression of circMBNL1 was negatively correlated with 24-item Hamilton Depression Scale (HAMD-24) scores in 53 MDD patients. A mediation model indicated that circMBNL1 affected HAMD-24 scores through a mediator, serum brain-derived neurotrophic factor. In 53 MDD patients, the amplitude of low-frequency fluctuations in the right orbital part middle frontal gyrus was positively correlated with circFKBP8 and circMBNL1 expression. Furthermore, the interventional study of 53 MDD patients demonstrated that antidepressive treatment partly increased circFKBP8 expression and the change in expression of circFKBP8 was predictive of further reduced HAMD-24 scores. INTERPRETATION: whole-blood circFKBP8 and circMBNL1 may be potential biomarkers for the diagnosis of MDD, respectively, and circFKBP8 may show great potential for the antidepressive treatment.

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  • circRNAs are abundantly expressed in the brain and are involved in the pathogenesis of neuropsychiatric disorders, impacting neuron development, cognitive function, and synaptic plasticity.

    “circRNAs are abundantly expressed in the brain. And also, circRNAs are involved in the pathogenesis of neuropsychiatric disorders, impacting neuron development, cognitive function, and synaptic plasticity290–292.”

    From Epigenetic regulation in major depression and other stress-related disorders: molecular mechanisms, clinical relevance and therapeutic potential (2023) · cites this paper as [291]

    The Introduction says several circRNAs are abundant in the brain and active at neuronal synapses involved in nervous-system development. The Discussion suggests circMBNL1 may contribute to MDD through neuroplasticity, but the paper does not establish an impact on cognitive function or synaptic plasticity, and it frames a role in disorder pathogenesis as possible rather than established. (LLM, conf=0.87)

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Authors
Shi, Y., Song, R., Wang, Z., Zhang, H., Zhu, J., Yue, Y., Zhao, Y., & Zhang, Z.
Affiliations
  • Zhongda Hospital Southeast University (CN)
  • Henan Medical University (CN)
  • Nanjing Medical University (CN)
  • Chinese Academy of Sciences (CN)
Corresponding author
  • Zhao, Yang
  • Zhang, Zhijun
Venue
eBioMedicine
Publisher
Elsevier BV
Published
2021-04
Volume
66
Pages
103337
ISSN
2352-3964 (ISSN-L)
OpenAlex
W3153849416
Cited by
65
References
90
Citations by year
2026: 8 · 2025: 13 · 2024: 12 · 2023: 9 · 2022: 14 · 2021: 9
FWCI
3.45
Type
journal article
Language
en
Open access
Locations
  • EBioMedicine (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
Funders
National Key Research and Development Program of China (2016YFC1306700)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Circular RNAs in diseases
  • Health Sciences › Medicine › Pharmacology › Treatment of Major Depression
  • Life Sciences › Neuroscience › Biological Psychiatry › Tryptophan and brain disorders
Keywords
circular RNA, major depressive disorder, peripheral biomarkers, antidepressant response, brain-derived neurotrophic factor, differentially expressed circRNAs, depression diagnosis
MeSH terms
Cell-Free Nucleic Acids, RNA, Circular, Adult, Brain, Brain Mapping, Depressive Disorder, Major, Major Depressive Disorder, Female, Humans, Magnetic Resonance Imaging, Male, Middle Aged, Prognosis, Biomarkers, Case-Control Studies, Computational Biology, Gene Expression Profiling, Young Adult, High-Throughput Nucleotide Sequencing, Transcriptome

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