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Zonca V, Marizzoni M, Saleri S, Zajkowska Z, Manfro PH, Souza L, Viduani A, Sforzini L, Swartz JR, Fisher HL, Kohrt BA, Kieling C, Riva MA, Cattaneo A, Mondelli V. Inflammation and immune system pathways as biological signatures of adolescent depression-the IDEA-RiSCo study. Transl Psychiatry 2024; 14:230. [PMID: 38824135 PMCID: PMC11144232 DOI: 10.1038/s41398-024-02959-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 05/16/2024] [Accepted: 05/21/2024] [Indexed: 06/03/2024] Open
Abstract
The biological mechanisms underlying the onset of major depressive disorder (MDD) have predominantly been studied in adult populations from high-income countries, despite the onset of depression typically occurring in adolescence and the majority of the world's adolescents living in low- and middle-income countries (LMIC). Taking advantage of a unique adolescent sample in an LMIC (Brazil), this study aimed to identify biological pathways characterizing the presence and increased risk of depression in adolescence, and sex-specific differences in such biological signatures. We collected blood samples from a risk-stratified cohort of 150 Brazilian adolescents (aged 14-16 years old) comprising 50 adolescents with MDD, 50 adolescents at high risk of developing MDD but without current MDD, and 50 adolescents at low risk of developing MDD and without MDD (25 females and 25 males in each group). We conducted RNA-Seq and pathway analysis on whole blood. Inflammatory-related biological pathways, such as role of hypercytokinemia/hyperchemokinemia in the pathogenesis of influenza (z-score = 3.464, p < 0.001), interferon signaling (z-score = 2.464, p < 0.001), interferon alpha/beta signaling (z-score = 3.873, p < 0.001), and complement signaling (z-score = 2, p = 0.002) were upregulated in adolescents with MDD compared with adolescents without MDD independently from their level of risk. The up-regulation of such inflammation-related pathways was observed in females but not in males. Inflammatory-related pathways involved in the production of cytokines and in interferon and complement signaling were identified as key indicators of adolescent depression, and this effect was present only in females.
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Affiliation(s)
- Valentina Zonca
- King's College London, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, London, UK.
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.
| | - Moira Marizzoni
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Via Pilastroni, 4, 25125, Brescia, Italy
| | - Samantha Saleri
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Via Pilastroni, 4, 25125, Brescia, Italy
| | - Zuzanna Zajkowska
- King's College London, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, London, UK
| | - Pedro H Manfro
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Child & Adolescent Psychiatry Division, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350-400N, Porto Alegre, RS, 90035-903, Brazil
| | - Laila Souza
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Child & Adolescent Psychiatry Division, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350-400N, Porto Alegre, RS, 90035-903, Brazil
| | - Anna Viduani
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Child & Adolescent Psychiatry Division, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350-400N, Porto Alegre, RS, 90035-903, Brazil
| | - Luca Sforzini
- King's College London, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, London, UK
- National Institute for Health and Care Research (NIHR) Maudsley Biomedical Research Centre, South London and Maudsley NHS Foundation Trust, King's College London, London, UK
| | - Johnna R Swartz
- Department of Human Ecology, University of California, Davis, Davis, CA, 95616, USA
| | - Helen L Fisher
- King's College London, Social, Genetic & Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, London, UK
- ESRC Centre for Society and Mental Health, King's College London, London, UK
| | - Brandon A Kohrt
- Center for Global Mental Health Equity, Department of Psychiatry and Behavioral Health, School of Medicine and Health Sciences, The George Washington University, 2120 L St NW, Ste 600, Washington, DC, 20037D, USA
| | - Christian Kieling
- Department of Psychiatry, Universidade Federal do Rio Grande do Sul, Child & Adolescent Psychiatry Division, Hospital de Clínicas de Porto Alegre, Rua Ramiro Barcelos, 2350-400N, Porto Alegre, RS, 90035-903, Brazil
| | - Marco Andrea Riva
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Via Pilastroni, 4, 25125, Brescia, Italy
| | - Annamaria Cattaneo
- Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
- Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Via Pilastroni, 4, 25125, Brescia, Italy
| | - Valeria Mondelli
- King's College London, Department of Psychological Medicine, Institute of Psychiatry, Psychology & Neuroscience, London, UK
- National Institute for Health and Care Research (NIHR) Maudsley Biomedical Research Centre, South London and Maudsley NHS Foundation Trust, King's College London, London, UK
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2
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Mitra S, Sameer Kumar GS, Samanta A, Schmidt MV, Thakur SS. Hypothalamic protein profiling from mice subjected to social defeat stress. Mol Brain 2024; 17:30. [PMID: 38802853 PMCID: PMC11131206 DOI: 10.1186/s13041-024-01096-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 05/01/2024] [Indexed: 05/29/2024] Open
Abstract
The Hypothalmic-Pituitary-Adrenal axis also known as the HPA axis is central to stress response. It also acts as the relay center between the body and the brain. We analysed hypothalamic proteome from mice subjected to chronic social defeat paradigm using iTRAQ based quantitative proteomics to identify changes associated with stress response. We identified greater than 2000 proteins after processing our samples analysed through Q-Exactive (Thermo) and Orbitrap Velos (Thermo) at 5% FDR. Analysis of data procured from the runs showed that the proteins whose levels were affected belonged primarily to mitochondrial and metabolic processes, translation, complement pathway among others. We also found increased levels of fibrinogen, myelin basic protein (MBP) and neurofilaments (NEFL, NEFM, NEFH) in the hypothalamus from socially defeated mice. Interestingly, research indicates that these proteins are upregulated in blood and CSF of subjects exposed to trauma and stress. Since hypothalamus secreted proteins can be found in blood and CSF, their utility as biomarkers in depression holds an impressive probability and should be validated in clinical samples.
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Affiliation(s)
- Shiladitya Mitra
- Max Planck Institute of Psychiatry, Kraepelinstr 2-10, Munich, 80804, Germany.
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Habsiguda, Hyderabad, 500007, India.
| | | | - Anumita Samanta
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Habsiguda, Hyderabad, 500007, India
- Donders Institute for Brain Cognition and Behavior, Radboud University, Postbs 9010, Nijmegen, 6500GL, Netherlands
| | - Mathias V Schmidt
- Max Planck Institute of Psychiatry, Kraepelinstr 2-10, Munich, 80804, Germany
| | - Suman S Thakur
- CSIR-Centre for Cellular and Molecular Biology, Uppal Road, Habsiguda, Hyderabad, 500007, India
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3
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Sato S, Yu Z, Sakai M, Motoike IN, Saigusa D, Hirayama R, Kikuchi Y, Abe T, Kinoshita K, Koshiba S, Tomita H. Decreased β-hydroxybutyrate and ketogenic amino acid levels in depressed human adults. Eur J Neurosci 2023; 57:1018-1032. [PMID: 36750311 DOI: 10.1111/ejn.15931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2022] [Revised: 01/24/2023] [Accepted: 01/29/2023] [Indexed: 02/09/2023]
Abstract
β-hydroxybutyrate (BHB) is a major ketone body synthesized mainly in the liver mitochondria and is associated with stress and severity of depression in humans. It is known to alleviate depressive-like behaviors in mouse models of depression. In this study, plasma BHB, ketogenic and glucogenic amino acids selected from the Tohoku Medical Megabank Project Community-Based Cohort Study were analysed and measured using nuclear magnetic resonance spectroscopy. The Center for Epidemiologic Studies Depression Scale (CES-D) was utilized to select adult participants with depressive symptoms (CES-D ≥ 16; n = 5722) and control participants (CES-D < 16; n = 18,150). We observed significantly reduced plasma BHB, leucine, and tryptophan levels in participants with depressive symptoms. Using social defeat stress (SDS) mice models, we found that BHB levels in mice sera increased after acute SDS, but showed no change after chronic SDS, which differed from human plasma results. Furthermore, acute SDS increased mitochondrial BHB levels in the prefrontal cortex at 6 h. In contrast, chronic SDS significantly increased the amount of food intake but reduced hepatic mitochondrial BHB levels in mice. Moreover, gene transcriptions of voltage-dependent anion-selective channel 1 (Vdac1) and monocarboxylic acid transporter 1 (Mct1), major molecules relevant to mitochondrial biogenesis and BHB transporter, significantly decreased in the liver and PFC after chronic SDS exposure. These results provide evidence that hepatic and prefrontal mitochondrial biogenesis plays an important role in BHB synthesis under chronic stress and in humans with depressive symptoms.
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Affiliation(s)
- Shiho Sato
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Zhiqian Yu
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Mai Sakai
- Department of Psychiatric Nursing, Graduate School of Health Science, Tohoku University, Sendai, Japan
| | - Ikuko N Motoike
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of System Bioinformatics, Tohoku University Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Daisuke Saigusa
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Ryo Hirayama
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Yoshie Kikuchi
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan
| | - Takaaki Abe
- Department of Biomedical Engineering Regenerative and Biomedical Engineering Medical Science, Graduate School of Biomedical Engineering, Tohoku University, Sendai, Japan
| | - Kengo Kinoshita
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of System Bioinformatics, Tohoku University Graduate School of Information Sciences, Tohoku University, Sendai, Japan
| | - Seizo Koshiba
- Department of Integrative Genomics, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of Medical Biochemistry, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Hiroaki Tomita
- Department of Psychiatry, Graduate School of Medicine, Tohoku University, Sendai, Japan.,Department of Preventive Medicine and Epidemiology, Tohoku University Tohoku Medical Megabank Organization, Sendai, Japan.,Department of Psychiatry, Tohoku University Hospital, Sendai, Japan
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Yan Y, Park DI, Horn A, Golub M, Turck CW, Golub M, W. Turck C. Delineation of biomarkers and molecular pathways of residual effects of fluoxetine treatment in juvenile rhesus monkeys by proteomic profiling. Zool Res 2023; 44:30-42. [PMID: 36266933 PMCID: PMC9841182 DOI: 10.24272/j.issn.2095-8137.2022.196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Fluoxetine (Prozac™) is the only antidepressant approved by the US Food and Drug Administration (FDA) for the treatment of major depressive disorder (MDD) in children. Despite its considerable efficacy as a selective serotonin reuptake inhibitor, the possible long-term effects of fluoxetine on brain development in children are poorly understood. In the current study, we aimed to delineate molecular mechanisms and protein biomarkers in the brains of juvenile rhesus macaques (Macaca mulatta) one year after the discontinuation of fluoxetine treatment using proteomic and phosphoproteomic profiling. We identified several differences in protein expression and phosphorylation in the dorsolateral prefrontal cortex (DLPFC) and cingulate cortex (CC) that correlated with impulsivity in animals, suggesting that the GABAergic synapse pathway may be affected by fluoxetine treatment. Biomarkers in combination with the identified pathways contribute to a better understanding of the mechanisms underlying the chronic effects of fluoxetine after discontinuation in children.
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Affiliation(s)
- Yu Yan
- Proteomics and Biomarkers, Max Planck Institute of Psychiatry, Munich 80804, Germany
| | - Dong Ik Park
- Proteomics and Biomarkers, Max Planck Institute of Psychiatry, Munich 80804, Germany
| | - Anja Horn
- Ludwig-Maximilians-Universität, Chair of Vegetative Anatomy, Institute of Anatomy, Faculty of Medicine, Munich 80336, Germany
| | - Mari Golub
- Department of Environmental Toxicology, University of California, Davis, CA 95616, USA
| | - Christoph W. Turck
- Proteomics and Biomarkers, Max Planck Institute of Psychiatry, Munich 80804, Germany,E-mail:
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5
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Redei EE, Udell ME, Solberg Woods LC, Chen H. The Wistar Kyoto Rat: A Model of Depression Traits. Curr Neuropharmacol 2023; 21:1884-1905. [PMID: 36453495 PMCID: PMC10514523 DOI: 10.2174/1570159x21666221129120902] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/19/2022] [Accepted: 10/21/2022] [Indexed: 12/05/2022] Open
Abstract
There is an ongoing debate about the value of animal research in psychiatry with valid lines of reasoning stating the limits of individual animal models compared to human psychiatric illnesses. Human depression is not a homogenous disorder; therefore, one cannot expect a single animal model to reflect depression heterogeneity. This limited review presents arguments that the Wistar Kyoto (WKY) rats show intrinsic depression traits. The phenotypes of WKY do not completely mirror those of human depression but clearly indicate characteristics that are common with it. WKYs present despair- like behavior, passive coping with stress, comorbid anxiety, and enhanced drug use compared to other routinely used inbred or outbred strains of rats. The commonly used tests identifying these phenotypes reflect exploratory, escape-oriented, and withdrawal-like behaviors. The WKYs consistently choose withdrawal or avoidance in novel environments and freezing behaviors in response to a challenge in these tests. The physiological response to a stressful environment is exaggerated in WKYs. Selective breeding generated two WKY substrains that are nearly isogenic but show clear behavioral differences, including that of depression-like behavior. WKY and its substrains may share characteristics of subgroups of depressed individuals with social withdrawal, low energy, weight loss, sleep disturbances, and specific cognitive dysfunction. The genomes of the WKY and WKY substrains contain variations that impact the function of many genes identified in recent human genetic studies of depression. Thus, these strains of rats share characteristics of human depression at both phenotypic and genetic levels, making them a model of depression traits.
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Affiliation(s)
- Eva E. Redei
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Mallory E. Udell
- Department of Pharmacology, Addiction Science, and Toxicology, University of Tennessee Health Science Center, Memphis, TN, USA
| | - Leah C. Solberg Woods
- Section on Molecular Medicine, Department of Internal Medicine, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Hao Chen
- Department of Pharmacology, Addiction Science, and Toxicology, University of Tennessee Health Science Center, Memphis, TN, USA
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6
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Blank TS, Meyer BM, Wieser M, Rabl U, Schögl P, Pezawas L. Brain morphometry and connectivity differs between adolescent- and adult-onset major depressive disorder. Depress Anxiety 2022; 39:387-396. [PMID: 35421280 PMCID: PMC9323432 DOI: 10.1002/da.23254] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 03/05/2022] [Accepted: 03/13/2022] [Indexed: 12/18/2022] Open
Abstract
BACKGROUND Early-onset (EO) major depressive disorder (MDD) patients experience more depressive episodes and an increased risk of relapse. Thus, on a neurobiological level, adult EO patients might display brain structure and function different from adult-onset (AO) patients. METHODS A total of 103 patients (66 females) underwent magnetic resonance imaging. Structural measures of gray matter volume (GMV) and functional connectivity networks during resting state were compared between EO (≤19 years) and AO groups. Four residual major depression symptoms, mood, anxiety, insomnia, and somatic symptoms, were correlated with GMV between groups. RESULTS We found comparatively increased GMV in the EO group, namely the medial prefrontal and insular cortex, as well as the anterior hippocampus. Functional networks in EO patients showed a comparatively weaker synchronization of the left hippocampus with the adjacent amygdala, and a stronger integration with nodes in the contralateral prefrontal cortex and supramarginal gyrus. Volumetric analysis of depression symptoms associated the caudate nuclei with symptoms of insomnia, and persisting mood symptoms with the right amygdala, while finding no significant clusters for somatic and anxiety symptoms. CONCLUSIONS The study highlights the important role of the hippocampus and the prefrontal cortex in EO patients as part of emotion-regulation networks. Results in EO patients demonstrated subcortical volume changes irrespective of sleep and mood symptom recovery, which substantiates adolescence as a pivotal developmental phase for MDD. Longitudinal studies are needed to differentiate neural recovery trajectories while accounting for age of onset.
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Affiliation(s)
- Thomas S. Blank
- Department of Psychiatry and PsychotherapyMedical University of ViennaWienAustria
| | - Bernhard M. Meyer
- Department of Psychiatry and PsychotherapyMedical University of ViennaWienAustria
| | - Marie‐Kathrin Wieser
- Department of Psychiatry and PsychotherapyMedical University of ViennaWienAustria
| | - Ulrich Rabl
- Department of Psychiatry and PsychotherapyMedical University of ViennaWienAustria
| | - Paul Schögl
- Department of Psychiatry and PsychotherapyMedical University of ViennaWienAustria
| | - Lukas Pezawas
- Department of Psychiatry and PsychotherapyMedical University of ViennaWienAustria
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7
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Li J, Pang Y, Du Y, Xia L, Chen M, Fan Y, Dong Z. Lack of interferon regulatory factor 3 leads to anxiety/depression-like behaviors through disrupting the balance of neuronal excitation and inhibition in mice. Genes Dis 2022. [DOI: 10.1016/j.gendis.2022.05.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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8
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Li JM, Jiang CL. Biological Diagnosis of Depression: A Biomarker Panel from Several Nonspecial Indicators Instead of the Specific Biomarker(s). Neuropsychiatr Dis Treat 2022; 18:3067-3071. [PMID: 36606185 PMCID: PMC9809399 DOI: 10.2147/ndt.s393553] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 12/06/2022] [Indexed: 12/31/2022] Open
Abstract
It is a consensus that the diagnosis efficiency of depression is rather low in clinic. The traditional way of diagnosing depression by symptomatology is flawed. Recent years, a growing body of evidence has underlined the importance of physiological indicators in the diagnosis of depression. However, the diagnosis of depression is difficult to be like some common clinical diseases, which have clear physiological indicators. A single physiological index provides limited information to clinicians and is of little help in the diagnosis of depression. Thus, it is more rational and practical to diagnose depression with a biomarker panel, which covers a few non-specific indicators, such as hormones, cytokines, and neurotrophins. This open review suggested that biomarker panel had a bright future in creating a new model of depression diagnosis or at least providing a reference to the existing depression criteria. The viewpoint is also the future of other psychiatric diagnosis.
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Affiliation(s)
- Jia-Mei Li
- Department of Stress Medicine, Faculty of Psychology, Second Military Medical University, Shanghai, People's Republic of China.,Department of Neurology, the 971st Hospital, Qingdao, People's Republic of China
| | - Chun-Lei Jiang
- Department of Stress Medicine, Faculty of Psychology, Second Military Medical University, Shanghai, People's Republic of China
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9
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Schaack AK, Mocchi M, Przybyl KJ, Redei EE. Immediate stress alters social and object interaction and recognition memory in nearly isogenic rat strains with differing stress reactivity. Stress 2021; 24:911-919. [PMID: 34374625 DOI: 10.1080/10253890.2021.1958203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Stress prior to learning and recall is known to affect both processes depending on the learning paradigm, the sex of the animal, and their reactivity to stress. Male and female animals of the inbred Wistar-Kyoto More Immobile (WMI) and Less Immobile (WLI) strains were tested in the modified novel object and spatial recognition paradigm and in the social interaction-recognition paradigm immediately after a 30 min restraint stress. The WMI strain shows enhanced stress reactivity compared to its near isogenic WLI control and thus, represents a genetically stress-susceptible rodent model. Without stress, there were no strain differences in social or object recognition, but there were sex differences in both types of investigation. Immediate stress generally increased object investigation, but decreased social interaction in all groups, except the WMI males, who exhibited increased aggression toward the juveniles. While stress increased plasma corticosterone and decreased testosterone levels in WLI males as expected, it increased testosterone in the aggressive WMI males, despite elevated levels of corticosterone. Stress generally decreased recognition, except the spatial recognition of WMI females, which paradoxically improved after stress. The strain-specific effects of immediate stress indicate that stress unlocks the vulnerability encoded by the stable genetic differences between WLIs and WMIs to result in the observed phenotypes.
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Affiliation(s)
- Alice K Schaack
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Chicago, IL, USA
| | - Madaline Mocchi
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Chicago, IL, USA
| | - Katherine J Przybyl
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Chicago, IL, USA
| | - Eva E Redei
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Chicago, IL, USA
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10
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Buck JM, Yu L, Knopik VS, Stitzel JA. DNA methylome perturbations: an epigenetic basis for the emergingly heritable neurodevelopmental abnormalities associated with maternal smoking and maternal nicotine exposure†. Biol Reprod 2021; 105:644-666. [PMID: 34270696 PMCID: PMC8444709 DOI: 10.1093/biolre/ioab138] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 06/29/2021] [Accepted: 07/14/2021] [Indexed: 11/13/2022] Open
Abstract
Maternal smoking during pregnancy is associated with an ensemble of neurodevelopmental consequences in children and therefore constitutes a pressing public health concern. Adding to this burden, contemporary epidemiological and especially animal model research suggests that grandmaternal smoking is similarly associated with neurodevelopmental abnormalities in grandchildren, indicative of intergenerational transmission of the neurodevelopmental impacts of maternal smoking. Probing the mechanistic bases of neurodevelopmental anomalies in the children of maternal smokers and the intergenerational transmission thereof, emerging research intimates that epigenetic changes, namely DNA methylome perturbations, are key factors. Altogether, these findings warrant future research to fully elucidate the etiology of neurodevelopmental impairments in the children and grandchildren of maternal smokers and underscore the clear potential thereof to benefit public health by informing the development and implementation of preventative measures, prophylactics, and treatments. To this end, the present review aims to encapsulate the burgeoning evidence linking maternal smoking to intergenerational epigenetic inheritance of neurodevelopmental abnormalities, to identify the strengths and weaknesses thereof, and to highlight areas of emphasis for future human and animal model research therein.
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Affiliation(s)
- Jordan M Buck
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, USA
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, USA
| | - Li Yu
- Department of Human Development and Family Studies, Purdue University, West Lafayette, IN, USA
| | - Valerie S Knopik
- Department of Human Development and Family Studies, Purdue University, West Lafayette, IN, USA
| | - Jerry A Stitzel
- Institute for Behavioral Genetics, University of Colorado Boulder, Boulder, CO, USA
- Department of Integrative Physiology, University of Colorado, Boulder, Boulder, CO, USA
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11
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de Jong TV, Kim P, Guryev V, Mulligan MK, Williams RW, Redei EE, Chen H. Whole genome sequencing of nearly isogenic WMI and WLI inbred rats identifies genes potentially involved in depression and stress reactivity. Sci Rep 2021; 11:14774. [PMID: 34285244 PMCID: PMC8292482 DOI: 10.1038/s41598-021-92993-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Accepted: 06/17/2021] [Indexed: 02/06/2023] Open
Abstract
The WMI and WLI inbred rats were generated from the stress-prone, and not yet fully inbred, Wistar Kyoto (WKY) strain. These were selected using bi-directional selection for immobility in the forced swim test and were then sib-mated for over 38 generations. Despite the low level of genetic diversity among WKY progenitors, the WMI substrain is significantly more vulnerable to stress relative to the counter-selected WLI strain. Here we quantify numbers and classes of genomic sequence variants distinguishing these substrains with the long term goal of uncovering functional and behavioral polymorphism that modulate sensitivity to stress and depression-like phenotypes. DNA from WLI and WMI was sequenced using Illumina xTen, IonTorrent, and 10X Chromium linked-read platforms to obtain a combined coverage of ~ 100X for each strain. We identified 4,296 high quality homozygous SNPs and indels between the WMI and WLI. We detected high impact variants in genes previously implicated in depression (e.g. Gnat2), depression-like behavior (e.g. Prlr, Nlrp1a), other psychiatric disease (e.g. Pou6f2, Kdm5a, Reep3, Wdfy3), and responses to psychological stressors (e.g. Pigr). High coverage sequencing data confirm that the two substrains are nearly coisogenic. Nonetheless, the small number of sequence variants contributes to numerous well characterized differences including depression-like behavior, stress reactivity, and addiction related phenotypes. These selected substrains are an ideal resource for forward and reverse genetic studies using a reduced complexity cross.
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Affiliation(s)
| | - Panjun Kim
- University of Tennessee Health Science Center, Memphis, TN, USA
| | - Victor Guryev
- European Research Institute for the Biology of Ageing, University of Groningen, Groningen, The Netherlands
| | | | | | - Eva E Redei
- Northwestern University - Chicago, Chicago, IL, USA
| | - Hao Chen
- University of Tennessee Health Science Center, Memphis, TN, USA.
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12
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Redei EE, Ciolino JD, Wert SL, Yang A, Kim S, Clark C, Zumpf KB, Wisner KL. Pilot validation of blood-based biomarkers during pregnancy and postpartum in women with prior or current depression. Transl Psychiatry 2021; 11:68. [PMID: 33479202 PMCID: PMC7820442 DOI: 10.1038/s41398-020-01188-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 10/22/2020] [Accepted: 12/03/2020] [Indexed: 12/19/2022] Open
Abstract
Major depressive disorder (MDD) is more common in women than in men, and evidence of gender-related subtypes of depression is emerging. Previously identified blood-based transcriptomic biomarkers distinguished male and female subjects with MDD from those without the disorder. In the present pilot study, we investigated the performance of these biomarkers in pregnant and postpartum women with prior major depressive episodes, some of whom had current symptomatology. The symptom scores of 13 pregnant and 15 postpartum women were identified by the Inventory of Depressive Symptoms (IDS-SR-30) at the time of blood sampling. Blood levels of the 20 transcriptomic biomarkers and that of estrogen receptor 2 (ESR2), membrane progesterone receptor alpha and beta (mPRα, mPRβ) were measured. In pregnant women, transcript levels of ADCY3, ASAH1, ATP11C, CDR2, ESR2, FAM46A, mPRβ, NAGA, RAPH1, TLR7, and ZNF291/SCAPER showed significant association with IDS-SR-30 scores, of which ADCY3, FAM46A, RAPH1, and TLR7 were identified in previous studies for their diagnostic potential for major depression. ASAH1 and ATP11C were previously also identified as potential markers of treatment efficacy. In postpartum women, transcript levels of CAT, CD59, and RAPH1 demonstrated a trend of association with IDS-SR-30 scores. Transcript levels of ADCY3, ATP11C, FAM46A, RAPH1, and ZNF291/SCAPER correlated with ESR2 and mPRβ expressions in pregnant women, whereas these associations only existed for mPRβ in postpartum women. These results suggest that a blood biomarker panel can identify depression symptomatology in pregnant women and that expression of these biomarker genes are affected by estrogen and/or progesterone binding differently during pregnancy and postpartum.
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Affiliation(s)
- E. E. Redei
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507The Asher Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - J. D. Ciolino
- grid.16753.360000 0001 2299 3507Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - S. L. Wert
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - A. Yang
- grid.16753.360000 0001 2299 3507Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - S. Kim
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - C. Clark
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507The Asher Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - K. B. Zumpf
- grid.16753.360000 0001 2299 3507Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
| | - K. L. Wisner
- grid.16753.360000 0001 2299 3507Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA ,grid.16753.360000 0001 2299 3507The Asher Center, Northwestern University Feinberg School of Medicine, Chicago, IL 60611 USA
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Nobis A, Zalewski D, Waszkiewicz N. Peripheral Markers of Depression. J Clin Med 2020; 9:E3793. [PMID: 33255237 PMCID: PMC7760788 DOI: 10.3390/jcm9123793] [Citation(s) in RCA: 97] [Impact Index Per Article: 24.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/09/2020] [Accepted: 11/19/2020] [Indexed: 12/22/2022] Open
Abstract
Major Depressive Disorder (MDD) is a leading cause of disability worldwide, creating a high medical and socioeconomic burden. There is a growing interest in the biological underpinnings of depression, which are reflected by altered levels of biological markers. Among others, enhanced inflammation has been reported in MDD, as reflected by increased concentrations of inflammatory markers-C-reactive protein, interleukin-6, tumor necrosis factor-α and soluble interleukin-2 receptor. Oxidative and nitrosative stress also plays a role in the pathophysiology of MDD. Notably, increased levels of lipid peroxidation markers are characteristic of MDD. Dysregulation of the stress axis, along with increased cortisol levels, have also been reported in MDD. Alterations in growth factors, with a significant decrease in brain-derived neurotrophic factor and an increase in fibroblast growth factor-2 and insulin-like growth factor-1 concentrations have also been found in MDD. Finally, kynurenine metabolites, increased glutamate and decreased total cholesterol also hold promise as reliable biomarkers for MDD. Research in the field of MDD biomarkers is hindered by insufficient understanding of MDD etiopathogenesis, substantial heterogeneity of the disorder, common co-morbidities and low specificity of biomarkers. The construction of biomarker panels and their evaluation with use of new technologies may have the potential to overcome the above mentioned obstacles.
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Affiliation(s)
- Aleksander Nobis
- Department of Psychiatry, Medical University of Bialystok, pl. Brodowicza 1, 16-070 Choroszcz, Poland; (D.Z.); (N.W.)
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miR-218 in Adolescence Predicts and Mediates Vulnerability to Stress. Biol Psychiatry 2020; 89:911-919. [PMID: 33384174 PMCID: PMC8052258 DOI: 10.1016/j.biopsych.2020.10.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Revised: 09/30/2020] [Accepted: 10/23/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND Adolescence is a period of increased vulnerability to psychiatric disorders, including depression. Discovering novel biomarkers to identify individuals who are at high risk is very much needed. Our previous work shows that the microRNA miR-218 mediates susceptibility to stress and depression in adulthood by targeting the netrin-1 guidance cue receptor gene Dcc in the medial prefrontal cortex (mPFC). METHODS Here, we investigated whether miR-218 regulates Dcc expression in adolescence and could serve as an early predictor of lifetime stress vulnerability in male mice. RESULTS miR-218 expression in the mPFC increases from early adolescence to adulthood and correlates negatively with Dcc levels. In blood, postnatal miR-218 expression parallels changes occurring in the mPFC. Notably, circulating miR-218 levels in adolescence associate with vulnerability to social defeat stress in adulthood, with high levels associated with social avoidance severity. Indeed, downregulation of miR-218 in the mPFC in adolescence promotes resilience to stress in adulthood. CONCLUSIONS miR-218 expression in adolescence may serve both as a marker of risk and as a target for early interventions.
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Witt SH, Frank J, Frischknecht U, Treutlein J, Streit F, Foo JC, Sirignano L, Dukal H, Degenhardt F, Koopmann A, Hoffmann S, Koller G, Pogarell O, Preuss UW, Zill P, Adorjan K, Schulze TG, Nöthen M, Spanagel R, Kiefer F, Rietschel M. Acute alcohol withdrawal and recovery in men lead to profound changes in DNA methylation profiles: a longitudinal clinical study. Addiction 2020; 115:2034-2044. [PMID: 32080920 DOI: 10.1111/add.15020] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 10/24/2019] [Accepted: 02/14/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND AND AIMS Withdrawal is a serious and sometimes life-threatening event in alcohol-dependent individuals. It has been suggested that epigenetic processes may play a role in this context. This study aimed to identify genes and pathways involved in such processes which hint to relevant mechanisms underlying withdrawal. DESIGN Cross-sectional case-control study and longitudinal within-cases study during alcohol withdrawal and after 2 weeks of recovery SETTING: Addiction medicine departments in two university hospitals in southern Germany. PARTICIPANTS/CASES Ninety-nine alcohol-dependent male patients receiving in-patient treatment and suffering from severe withdrawal symptoms during detoxification and 95 age-matched male controls. MEASUREMENTS Epigenome-wide methylation patterns were analyzed in patients during acute alcohol withdrawal and after 2 weeks of recovery, as well as in age-matched controls using Illumina EPIC bead chips. Methylation levels of patients and controls were tested for association with withdrawal status. Tests were adjusted for technical and batch effects, age, smoking and cell type distribution. Single-site analysis, as well as an analysis of differentially methylated regions and gene ontology analysis, were performed. FINDINGS We found pronounced epigenome-wide significant [false discovery rate (FDR) < 0.05] differences between patients during withdrawal and after 2 weeks [2876 cytosine-phosphate-guanine (CpG) sites], as well as between patients and controls (9845 and 6094 CpG sites comparing patients at time-point 1 and patients at time-point 2 versus controls, respectively). Analysis of differentially methylated regions and involved pathways revealed an over-representation of gene ontology terms related to the immune system response. Differences between patients and controls diminished after recovery (> 800 CpG sites less), suggesting a partial reversibility of alcohol- and withdrawal-related methylation. CONCLUSIONS Acute alcohol withdrawal in severely dependent male patients appears to be associated with extensive changes in epigenome-wide methylation patterns. In particular, genes involved in immune system response seem to be affected by this condition.
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Affiliation(s)
- Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Josef Frank
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Ulrich Frischknecht
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Jens Treutlein
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Fabian Streit
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Jerome C Foo
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Lea Sirignano
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Helene Dukal
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Franziska Degenhardt
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Anne Koopmann
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Sabine Hoffmann
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Gabi Koller
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Oliver Pogarell
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Ulrich W Preuss
- Department of Psychiatry, Psychotherapy, Psychosomatics, Martin-Luther-University (MLU), Halle/Saale, Germany
| | - Peter Zill
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Kristina Adorjan
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany.,Institute of Psychiatric Phenomics and Genomics (IPPG), University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Thomas G Schulze
- Institute of Psychiatric Phenomics and Genomics (IPPG), University Hospital, Ludwig Maximilian University (LMU) Munich, Munich, Germany
| | - Markus Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Rainer Spanagel
- Institute of Psychopharmacology, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Falk Kiefer
- Department of Addictive Behaviour and Addiction Medicine, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Heidelberg University, Mannheim, Germany
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16
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Jung SH, Meckes JK, Schipma MJ, Lim PH, Jenz ST, Przybyl K, Wert SL, Kim S, Luo W, Gacek SA, Jankord R, Hatcher-Solis C, Redei EE. Strain Differences in Responsiveness to Repeated Restraint Stress Affect Remote Contextual Fear Memory and Blood Transcriptomics. Neuroscience 2020; 444:76-91. [PMID: 32768618 DOI: 10.1016/j.neuroscience.2020.07.052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 07/15/2020] [Accepted: 07/29/2020] [Indexed: 12/20/2022]
Abstract
The role of stress in altering fear memory is not well understood. Since individual variations in stress reactivity exist, and stress alters fear memory, exposing individuals with differing stress-reactivity to repeated stress would affect their fear memory to various degrees. We explored this question using the average stress-reactive Fisher 344 (F344) rat strain and the Wistar-Kyoto (WKY) strain with its heightened stress-reactivity. Male F344 and WKY rats were exposed to the contextual fear conditioning (CFC) paradigm and then chronic restraint stress (CRS) or no stress (NS) was administered for two weeks before a second CFC. Both recent and reinstated fear memory were greater in F344s than WKYs, regardless of the stress status. In contrast, remote memory was attenuated only in F344s after CRS. In determining whether this strain-specific response to CRS was mirrored by transcriptomic changes in the blood, RNA sequencing was carried out. Overlapping differentially expressed genes (DEGs) between NS and CRS in the blood of F344 and WKY suggest a convergence of stress-related molecular mechanisms, independent of stress-reactivity. In contrast, DEGs unique to the F344 and the WKY stress responses are divergent in their functionality and networks, beyond that of strain differences in their non-stressed state. These results suggest that in some individuals chronic or repeated stress, different from the original fear memory-provoking stress, can attenuate prior fear memory. Furthermore, the novel blood DEGs can report on the general state of stress of the individual, or can be associated with individual variation in stress-responsiveness.
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Affiliation(s)
- Seung H Jung
- Applied Neuroscience, 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, USA
| | - Jeanie K Meckes
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Matthew J Schipma
- NUSeq Core, Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Patrick H Lim
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Sophia T Jenz
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Katherine Przybyl
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Stephanie L Wert
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Sarah Kim
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Wendy Luo
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Stephanie A Gacek
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA
| | - Ryan Jankord
- Applied Neuroscience, 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, USA
| | - Candice Hatcher-Solis
- Applied Neuroscience, 711th Human Performance Wing, Air Force Research Laboratory, Wright-Patterson Air Force Base, OH, USA
| | - Eva E Redei
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL, USA.
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A missing link between depression models: Forced swimming test, helplessness and passive coping in genetically heterogeneous NIH-HS rats. Behav Processes 2020; 177:104142. [DOI: 10.1016/j.beproc.2020.104142] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 03/28/2020] [Accepted: 05/17/2020] [Indexed: 01/11/2023]
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18
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Friedel E, Walter H, Veer IM, Zimmermann US, Heinz A, Frieling H, Zindler T. Impact of Long‐Term Alcohol Consumption and Relapse on Genome‐Wide DNA Methylation Changes in Alcohol‐Dependent Subjects: A Longitudinal Study. Alcohol Clin Exp Res 2020; 44:1356-1365. [DOI: 10.1111/acer.14354] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Accepted: 04/27/2020] [Indexed: 12/11/2022]
Affiliation(s)
- Eva Friedel
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthCharité Campus Mitte (CCM) Berlin Germany
- Berlin Institute of Health (BIH) Berlin Germany
| | - Henrik Walter
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthCharité Campus Mitte (CCM) Berlin Germany
| | - Ilya M. Veer
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthCharité Campus Mitte (CCM) Berlin Germany
| | - Ulrich S. Zimmermann
- Department of Addiction Medicine and Psychotherapykbo Isar‐Amper‐Klinikum Munich Germany
| | - Andreas Heinz
- Charité Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt‐Universität zu Berlin, and Berlin Institute of HealthCharité Campus Mitte (CCM) Berlin Germany
| | - Helge Frieling
- Department of Psychiatry, Social Psychiatry and PsychotherapyHannover Medical School Hannover Germany
| | - Tristan Zindler
- Department of Psychiatry, Social Psychiatry and PsychotherapyHannover Medical School Hannover Germany
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Facilitating Complex Trait Analysis via Reduced Complexity Crosses. Trends Genet 2020; 36:549-562. [PMID: 32482413 DOI: 10.1016/j.tig.2020.05.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2020] [Revised: 05/05/2020] [Accepted: 05/12/2020] [Indexed: 01/02/2023]
Abstract
Genetically diverse inbred strains are frequently used in quantitative trait mapping to identify sequence variants underlying trait variation. Poor locus resolution and high genetic complexity impede variant discovery. As a solution, we explore reduced complexity crosses (RCCs) between phenotypically divergent, yet genetically similar, rodent substrains. RCCs accelerate functional variant discovery via decreasing the number of segregating variants by orders of magnitude. The simplified genetic architecture of RCCs often permit immediate identification of causal variants or rapid fine-mapping of broad loci to smaller intervals. Whole-genome sequences of substrains make RCCs possible by supporting the development of array- and targeted sequencing-based genotyping platforms, coupled with rapid genome editing for variant validation. In summary, RCCs enhance discovery-based genetics of complex traits.
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Seki T, Yamagata H, Uchida S, Chen C, Kobayashi A, Kobayashi M, Harada K, Matsuo K, Watanabe Y, Nakagawa S. Altered expression of long noncoding RNAs in patients with major depressive disorder. J Psychiatr Res 2019; 117:92-99. [PMID: 31351391 DOI: 10.1016/j.jpsychires.2019.07.004] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 07/10/2019] [Accepted: 07/18/2019] [Indexed: 02/06/2023]
Abstract
Although major depressive disorder (MDD) is a leading cause of disability worldwide, its pathophysiology is poorly understood. Increasing evidence suggests that aberrant regulation of transcription plays a key role in the pathophysiology of MDD. Recently, long noncoding RNAs (lncRNAs) have been recognized for their important functions in chromatin structure, gene expression, and the subsequent manifestation of various biological processes in the central nervous system. However, it is unclear whether the aberrant expression and function of lncRNAs are associated with the pathophysiology of MDD. In this study, we sought to evaluate the expression of lncRNAs in peripheral blood leukocytes as potential biomarkers for MDD. We measured the expression levels of 83 lncRNAs in the peripheral blood leukocytes of 29 MDD patients and 29 age- and gender-matched healthy controls using quantitative reverse transcription PCR (RT-qPCR) analysis. We found that MDD patients exhibited distinct expression signatures. Specifically, the expression level of one lncRNA (RMRP) was lower while the levels of four (Y5, MER11C, PCAT1, and PCAT29) were higher in MDD patients compared to healthy controls. The expression level of RMRP was correlated with depression severity as measured by the Hamilton Depression Rating Scale (HAM-D). Moreover, RMRP expression was lower in a mouse model of depression, corroborating the observation from MDD patients. Taken together, our data suggest that lower RMRP levels may serve as a potential biomarker for MDD.
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Affiliation(s)
- Tomoe Seki
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan; Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Hirotaka Yamagata
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan; Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan.
| | - Shusaku Uchida
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan; Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency (JST), 4-1-8 Honcho, Kawaguchi, Saitama, 332-0012, Japan
| | - Chong Chen
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Ayumi Kobayashi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Masaaki Kobayashi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Kenichiro Harada
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Koji Matsuo
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Yoshifumi Watanabe
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Shin Nakagawa
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
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What do DNA methylation studies tell us about depression? A systematic review. Transl Psychiatry 2019; 9:68. [PMID: 30718449 PMCID: PMC6362194 DOI: 10.1038/s41398-019-0412-y] [Citation(s) in RCA: 71] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Revised: 01/16/2019] [Accepted: 01/19/2019] [Indexed: 11/09/2022] Open
Abstract
There has been a limited number of systematic reviews conducted to summarize the overview of the relationship between DNA methylation and depression, and to critically appraise the roles of major study characteristics in the accuracy of study findings. This systematic review aims to critically appraise the impact of study characteristics on the association between DNA methylation and depression, and summarize the overview of this association. Electronic databases and gray literatures until December 2017 were searched for English-language studies with standard diagnostic criteria of depression. A total of 67 studies were included in this review along with a summary of their study characteristics. We grouped the findings into etiological and treatment studies. Majority of these selected studies were recently published and from developed countries. Whole blood samples were the most studied common tissues. Bisulfite conversion, along with pyrosequencing, was widely used to test the DNA methylation level across all the studies. High heterogeneity existed among the studies in terms of experimental and statistical methodologies and study designs. As recommended by the Cochrane guideline, a systematic review without meta-analysis should be undertaken. This review has, in general, found that DNA methylation modifications were associated with depression. Subgroup analyses showed that most studies found BDNF and SLC6A4 hypermethylations to be associated with MDD or depression in general. In contrast, studies on NR3C1, OXTR, and other genes, which were tested by only few studies, reported mixed findings. More longitudinal studies using standardized experimental and laboratory methodologies are needed in future studies to enable more systematical comparisons and quantitative synthesis.
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Harro J. Animal models of depression: pros and cons. Cell Tissue Res 2018; 377:5-20. [PMID: 30560458 DOI: 10.1007/s00441-018-2973-0] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Accepted: 11/23/2018] [Indexed: 12/11/2022]
Abstract
Animal models of depression are certainly needed but the question in the title has been raised owing to the controversies in the interpretation of the readout in a number of tests, to the perceived lack of progress in the development of novel treatments and to the expressed doubts in whether animal models can offer anything to make a true breakthrough in understanding the neurobiology of depression and producing novel drugs against depression. Herewith, it is argued that if anything is wrong with animal models, including those for depression, it is not about the principle of modelling complex human disorder in animals but in the way the tests are selected, conducted and interpreted. Further progress in the study of depression and in developing new treatments, will be supported by animal models of depression if these were more critically targeted to drug screening vs. studies of underlying neurobiology, clearly stratified to vulnerability and pathogenetic models, focused on well-defined endophenotypes and validated for each setting while bearing the existing limits to validation in mind. Animal models of depression need not to rely merely on behavioural readouts but increasingly incorporate neurobiological measures as the understanding of depression as human brain disorder advances. Further developments would be fostered by cross-fertilizinga translational approach that is bidirectional, research on humans making more use of neurobiological findings in animals.
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Affiliation(s)
- Jaanus Harro
- Division of Neuropsychopharmacology, Department of Psychology, Estonian Centre of Behavioural and Health Sciences, University of Tartu, Ravila 14A Chemicum, 50411, Tartu, Estonia.
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Abstract
INTRODUCTION Depression and posttraumatic stress disorder (PTSD) are two complex and debilitating psychiatric disorders that result in poor life and destructive behaviors against self and others. Currently, diagnosis is based on subjective rather than objective determinations leading to misdiagnose and ineffective treatments. Advances in novel neurobiological methods have allowed assessment of promising biomarkers to diagnose depression and PTSD, which offers a new means of appropriately treating patients. Areas covered: Biomarkers discovery in blood represents a fundamental tool to predict, diagnose, and monitor treatment efficacy in depression and PTSD. The potential role of altered HPA axis, epigenetics, NPY, BDNF, neurosteroid biosynthesis, the endocannabinoid system, and their function as biomarkers for mood disorders is discussed. Insofar, we propose the identification of a biomarker axis to univocally identify and discriminate disorders with large comorbidity and symptoms overlap, so as to provide a base of support for development of targeted treatments. We also weigh in on the feasibility of a future blood test for early diagnosis. Expert commentary: Potential biomarkers have already been assessed in patients' blood and need to be further validated through multisite large clinical trial stratification. Another challenge is to assess the relation among several interdependent biomarkers to form an axis that identifies a specific disorder and secures the best-individualized treatment. The future of blood-based tests for PTSD and depression is not only on the horizon but, possibly, already around the corner.
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Affiliation(s)
- Dario Aspesi
- a The Psychiatric Institute, Department of Psychiatry , University of Illinois at Chicago , Chicago , IL , USA
| | - Graziano Pinna
- a The Psychiatric Institute, Department of Psychiatry , University of Illinois at Chicago , Chicago , IL , USA
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Connective Tissue Growth Factor Is a Novel Prodepressant. Biol Psychiatry 2018; 84:555-562. [PMID: 29861095 PMCID: PMC6249676 DOI: 10.1016/j.biopsych.2018.04.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 03/23/2018] [Accepted: 04/25/2018] [Indexed: 12/27/2022]
Abstract
BACKGROUND While downregulation of several growth factors in major depressive disorder is well established, less attention has been paid to the upregulation of other growth factors. Yet, upregulated growth factors may offer better therapeutic targets. We show that connective tissue growth factor (CTGF) represents a target based on its upregulation in major depressive disorder and studies in animal models implicating it in negative affect. METHODS CTGF gene expression was first evaluated in the postmortem human amygdala. The findings were followed up in outbred rats and in two rat lines that were selectively bred for differences in novelty-seeking and anxiety behavior (bred low responders and bred high responders). We studied the impact of social defeat and early-life treatment with fibroblast growth factor 2 on CTGF expression. Finally, we assessed the ability of an anti-CTGF antibody (FG-3019) to alter CTGF expression and emotionality. RESULTS In the human amygdala, CTGF expression was significantly increased in major depressive disorder compared with control subjects. CTGF expression was also significantly increased in the dentate gyrus of adult bred low responders compared with bred high responders. Social defeat stress in bred low responders significantly increased CTGF expression in the dentate gyrus. Early-life fibroblast growth factor 2, a treatment that reduces anxiety-like behavior throughout life, decreased CTGF expression in the adult dentate gyrus. In outbred rats, CTGF administration increased depression-like behavior. Chronic treatment with FG-3019 decreased CTGF expression, and acute and chronic treatment was antidepressant. CONCLUSIONS This study is the first to implicate CTGF as a prodepressant molecule that could serve as a target for the development of novel therapeutics.
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Lim PH, Wert SL, Tunc-Ozcan E, Marr R, Ferreira A, Redei EE. Premature hippocampus-dependent memory decline in middle-aged females of a genetic rat model of depression. Behav Brain Res 2018; 353:242-249. [PMID: 29490235 DOI: 10.1016/j.bbr.2018.02.030] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2017] [Revised: 02/01/2018] [Accepted: 02/21/2018] [Indexed: 01/08/2023]
Abstract
Aging and major depressive disorder are risk factors for dementia, including Alzheimer's Disease (AD), but the mechanism(s) linking depression and dementia are not known. Both AD and depression show greater prevalence in women. We began to investigate this connection using females of the genetic model of depression, the inbred Wistar Kyoto More Immobile (WMI) rat. These rats consistently display depression-like behavior compared to the genetically close control, the Wistar Kyoto Less Immobile (WLI) strain. Hippocampus-dependent contextual fear memory did not differ between young WLI and WMI females, but, by middle-age, female WMIs showed memory deficits compared to same age WLIs. This deficit, measured as duration of freezing in the fear provoking-context was not related to activity differences between the strains prior to fear conditioning. Hippocampal expression of AD-related genes, such as amyloid precursor protein, amyloid beta 42, beta secretase, synucleins, total and dephosphorylated tau, and synaptophysin, did not differ between WLIs and WMIs in either age group. However, hippocampal transcript levels of catalase (Cat) and hippocampal and frontal cortex expression of insulin-like growth factor 2 (Igf2) and Igf2 receptor (Igf2r) paralleled fear memory differences between middle-aged WLIs and WMIs. This data suggests that chronic depression-like behavior that is present in this genetic model is a risk factor for early spatial memory decline in females. The molecular mechanisms of this early memory decline likely involve the interaction of aging processes with the genetic components responsible for the depression-like behavior in this model.
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Affiliation(s)
- Patrick H Lim
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Stephanie L Wert
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Elif Tunc-Ozcan
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Robert Marr
- Department of Neuroscience, Chicago Medical School, Rosalind Franklin University of Medicine and Science, North Chicago, IL 60064, United States
| | - Adriana Ferreira
- Department of Cellular and Molecular Biology, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States
| | - Eva E Redei
- Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, United States.
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Knopik VS, Marceau K, Bidwell LC, Rolan E. Prenatal substance exposure and offspring development: Does DNA methylation play a role? Neurotoxicol Teratol 2018; 71:50-63. [PMID: 29408446 DOI: 10.1016/j.ntt.2018.01.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 01/12/2018] [Accepted: 01/24/2018] [Indexed: 12/17/2022]
Abstract
The period of in utero development is one of the most critical windows during which adverse conditions and exposures may influence the growth and development of the fetus as well as its future postnatal health and behavior. Maternal substance use during pregnancy remains a relatively common but nonetheless hazardous in utero exposure. For example, previous epidemiological studies have associated prenatal substance exposure with reduced birth weight, poor developmental and psychological outcomes, and increased risk for diseases and behavioral disorders (e.g., externalizing behaviors like ADHD, conduct disorder, and substance use) later in life. Researchers are now learning that many of the mechanisms whereby adverse in utero exposures may affect key pathways crucial for proper fetal growth and development are epigenetic in nature, with the majority of work in humans considering DNA methylation specifically. This review will explore the research to date on epigenetic alterations tied to maternal substance use during pregnancy and will also discuss the possible role of DNA methylation in the robust relationship between maternal substance use and later behavioral and developmental sequelae in offspring.
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Affiliation(s)
- Valerie S Knopik
- Department of Human Development and Family Studies, Purdue University, West Lafayette, IN, USA.
| | - Kristine Marceau
- Department of Human Development and Family Studies, Purdue University, West Lafayette, IN, USA
| | - L Cinnamon Bidwell
- Institute of Cognitive Science, University of Colorado, Boulder, CO, USA
| | - Emily Rolan
- Department of Human Development and Family Studies, Purdue University, West Lafayette, IN, USA
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Kavanagh PS, Kahl BL. Are Expectations the Missing Link between Life History Strategies and Psychopathology? Front Psychol 2018; 9:89. [PMID: 29467701 PMCID: PMC5808228 DOI: 10.3389/fpsyg.2018.00089] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Accepted: 01/19/2018] [Indexed: 12/20/2022] Open
Abstract
Despite advances in knowledge and thinking about using life history theory to explain psychopathology there is still a missing link. That is, we all have a life history strategy, but not all of us develop mental health problems. We propose that the missing link is expectations - a mismatch between expected environmental conditions (including social) set by variations in life history strategies and the current environmental conditions. The mismatch hypothesis has been applied at the biological level in terms of health and disease and we believe that it can also be applied more broadly at the psychological level in terms of perceived expectations in the social environment and the resulting distress-psychopathology-that manifests when our expectations are not met.
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Affiliation(s)
- Phillip S. Kavanagh
- ISN Psychology, Institute for Social Neuroscience, Heidelberg, VIC, Australia
- The Florey Institute for Neuroscience and Mental Health, Heidelberg, VIC, Australia
- School of Psychology, Social Work and Social Policy, University of South Australia, Adelaide, SA, Australia
| | - Bianca L. Kahl
- School of Psychology, Social Work and Social Policy, University of South Australia, Adelaide, SA, Australia
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Busch Y, Menke A. Blood-based biomarkers predicting response to antidepressants. J Neural Transm (Vienna) 2018; 126:47-63. [PMID: 29374800 DOI: 10.1007/s00702-018-1844-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 01/11/2018] [Indexed: 01/04/2023]
Abstract
Major depressive disorder is a common, serious and in some cases, life-threatening condition and affects approximately 350 million people globally. Although there is effective treatment available for it, more than 50% of the patients fail to respond to the first antidepressant they receive. The selection of a distinct treatment is still exclusively based on clinical judgment without incorporating lab-derived objective measures. However, there is growing evidence of biomarkers that it helps to improve diagnostic processes and treatment algorithms. Here genetic markers and blood-based biomarkers of the monoamine pathways, inflammatory pathways and the hypothalamic-pituitary-adrenal (HPA) axis are reviewed. Promising findings arise from studies investigating inflammatory pathways and immune markers that may identify patients suitable for anti-inflammatory based treatment regimes. Next, an early normalization of a disturbed HPA axis or depleted neurotrophic factors may predict stable treatment response. Genetic markers within the serotonergic system may identify patients who are vulnerable because of stressful life events, but evidence for guiding treatment regimes still is inconsistent. Therefore, there is still a great need for studies investigating and validating biomarkers for the prediction of treatment response to facilitate the treatment selection and shorten the time to remission and thus provide personalized medicine in psychiatry.
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Affiliation(s)
- Yasmin Busch
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Wuerzburg, Margarete-Hoeppel-Platz 1, 97080, Würzburg, Germany
| | - Andreas Menke
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Wuerzburg, Margarete-Hoeppel-Platz 1, 97080, Würzburg, Germany. .,Comprehensive Heart Failure Center, University Hospital of Wuerzburg, Am Schwarzenberg 15, 97080, Würzburg, Germany.
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Clark DL, Konduru N, Kemp A, Bray S, Brown EC, Goodyear B, Ramasubbu R. The impact of age of onset on amygdala intrinsic connectivity in major depression. Neuropsychiatr Dis Treat 2018; 14:343-352. [PMID: 29403280 PMCID: PMC5784751 DOI: 10.2147/ndt.s145042] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Early-onset major depressive disorder (EO-MDD), beginning during childhood and adolescence, is associated with more illness burden and a worse prognosis than adult-onset MDD (AO-MDD), but little is known about the neural features distinguishing these subgroup phenotypes. Functional abnormalities of the amygdala are central to major depressive disorder (MDD) neurobiology; therefore, we examined whether amygdala intrinsic connectivity (IC) can differentiate EO-MDD from AO-MDD in a cohort of adult MDD patients. SUBJECTS AND METHODS Twenty-one EO-MDD (age of onset ≤18 years), 31 AO-MDD patients (age of onset ≥19 years), and 19 healthy controls (HCs) underwent resting-state functional magnetic resonance imaging (7 minutes). Amygdala seed-based resting-state functional connectivity was compared between groups. RESULTS AO-MDD patients showed loss of inverse left amygdala-left dorsolateral prefrontal cortex IC and increased inverse left amygdala-left inferior parietal IC, compared to both HCs and EO-MDD. EO-MDD showed a switch from inverse to positive IC with right dorsomedial prefrontal cortex, compared to HCs and AO-MDD. This effect was removed when we controlled for illness burden. CONCLUSION Alterations in amygdala IC with the default-mode network were specifically related to EO-MDD, whereas amygdala IC with executive cognitive control regions was preferentially disrupted in AO-MDD. Increased illness burden, an important clinical marker of EO-MDD, accounted for its specific effects on amygdala IC. Brain imaging has the potential for validation of clinical subtypes and can provide markers of prognostic value in MDD patients.
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Affiliation(s)
- Darren L Clark
- Department of Psychiatry.,Department of Clinical Neuroscience.,Mathison Centre for Mental Health Research and Education.,Hotchkiss Brain Institute, University of Calgary, Calgary
| | | | - Anne Kemp
- School of Medicine, University of Alberta, Edmonton
| | - Signe Bray
- Department of Radiology.,Department of Pediatrics, University of Calgary.,Child and Adolescent Imaging Research Program, Alberta Children's Hospital, Calgary, AB, Canada
| | - Elliot C Brown
- Department of Psychiatry.,Department of Clinical Neuroscience.,Mathison Centre for Mental Health Research and Education.,Hotchkiss Brain Institute, University of Calgary, Calgary
| | - Bradley Goodyear
- Department of Psychiatry.,Department of Clinical Neuroscience.,Hotchkiss Brain Institute, University of Calgary, Calgary.,Department of Radiology
| | - Rajamannar Ramasubbu
- Department of Psychiatry.,Department of Clinical Neuroscience.,Mathison Centre for Mental Health Research and Education.,Hotchkiss Brain Institute, University of Calgary, Calgary
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Bustin S, Nolan T. Talking the talk, but not walking the walk: RT-qPCR as a paradigm for the lack of reproducibility in molecular research. Eur J Clin Invest 2017; 47:756-774. [PMID: 28796277 DOI: 10.1111/eci.12801] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Accepted: 08/07/2017] [Indexed: 12/11/2022]
Abstract
Poorly executed and inadequately reported molecular measurement methods are amongst the causes underlying the lack of reproducibility of much biomedical research. Although several high impact factor journals have acknowledged their past failure to scrutinise adequately the technical soundness of manuscripts, there is a perplexing reluctance to implement basic corrective measures. The reverse transcription real-time quantitative PCR (RT-qPCR) is probably the most straightforward measurement technique available for RNA quantification and is widely used in research, diagnostic, forensic and biotechnology applications. Despite the impact of the minimum information for the publication of quantitative PCR experiments (MIQE) guidelines, which aim to improve the robustness and the transparency of reporting of RT-qPCR data, we demonstrate that elementary protocol errors, inappropriate data analysis and inadequate reporting continue to be rife and conclude that the majority of published RT-qPCR data are likely to represent technical noise.
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Affiliation(s)
- Stephen Bustin
- Postgraduate Medical Institute, Faculty of Medical Science, Anglia Ruskin University, Chelmsford, Essex, UK
| | - Tania Nolan
- Institute of Population Health, Faculty of Medical and Human Sciences, University of Manchester, Manchester, UK
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Holl K, He H, Wedemeyer M, Clopton L, Wert S, Meckes JK, Cheng R, Kastner A, Palmer AA, Redei EE, Solberg Woods LC. Heterogeneous stock rats: a model to study the genetics of despair-like behavior in adolescence. GENES BRAIN AND BEHAVIOR 2017; 17:139-148. [PMID: 28834208 DOI: 10.1111/gbb.12410] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 08/17/2017] [Accepted: 08/17/2017] [Indexed: 12/13/2022]
Abstract
Major depressive disorder (MDD) is a complex illness caused by both genetic and environmental factors. Antidepressant resistance also has a genetic component. To date, however, very few genes have been identified for major depression or antidepressant resistance. In this study, we investigated whether outbred heterogeneous stock (HS) rats would be a suitable model to uncover the genetics of depression and its connection to antidepressant resistance. The Wistar Kyoto (WKY) rat, one of the eight founders of the HS, is a recognized animal model of juvenile depression and is resistant to fluoxetine antidepressant treatment. We therefore hypothesized that adolescent HS rats would exhibit variation in both despair-like behavior and response to fluoxetine treatment. We assessed heritability of despair-like behavior and response to sub-acute fluoxetine using a modified forced swim test (FST) in 4-week-old HS rats. We also tested whether blood transcript levels previously identified as depression biomarkers in adolescent human subjects are differentially expressed in HS rats with high vs. low FST immobility. We demonstrate heritability of despair-like behavior in 4-week-old HS rats and show that many HS rats are resistant to fluoxetine treatment. In addition, blood transcript levels of Amfr, Cdr2 and Kiaa1539, genes previously identified in human adolescents with MDD, are differentially expressed between HS rats with high vs. low immobility. These data demonstrate that FST despair-like behavior will be amenable to genetic fine-mapping in adolescent HS rats. The overlap between human and HS blood biomarkers suggest that these studies may translate to depression in humans.
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Affiliation(s)
- K Holl
- Department of pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - H He
- Internal Medicine, Molecular Medicine, Wake Forest Baptist Health, Winston Salem, NC, USA
| | - M Wedemeyer
- Department of pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - L Clopton
- Department of pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - S Wert
- Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - J K Meckes
- Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - R Cheng
- University of California, San Diego, CA, USA
| | - A Kastner
- Department of pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - A A Palmer
- University of California, San Diego, CA, USA
| | - E E Redei
- Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
| | - L C Solberg Woods
- Internal Medicine, Molecular Medicine, Wake Forest Baptist Health, Winston Salem, NC, USA
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Bhore N, Wang BJ, Chen YW, Liao YF. Critical Roles of Dual-Specificity Phosphatases in Neuronal Proteostasis and Neurological Diseases. Int J Mol Sci 2017; 18:ijms18091963. [PMID: 28902166 PMCID: PMC5618612 DOI: 10.3390/ijms18091963] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 09/01/2017] [Accepted: 09/07/2017] [Indexed: 12/31/2022] Open
Abstract
Protein homeostasis or proteostasis is a fundamental cellular property that encompasses the dynamic balancing of processes in the proteostasis network (PN). Such processes include protein synthesis, folding, and degradation in both non-stressed and stressful conditions. The role of the PN in neurodegenerative disease is well-documented, where it is known to respond to changes in protein folding states or toxic gain-of-function protein aggregation. Dual-specificity phosphatases have recently emerged as important participants in maintaining balance within the PN, acting through modulation of cellular signaling pathways that are involved in neurodegeneration. In this review, we will summarize recent findings describing the roles of dual-specificity phosphatases in neurodegeneration and offer perspectives on future therapeutic directions.
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Affiliation(s)
- Noopur Bhore
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University and Academia Sinica, Taipei 11529, Taiwan.
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan.
| | - Bo-Jeng Wang
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan.
| | - Yun-Wen Chen
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan.
| | - Yung-Feng Liao
- Taiwan International Graduate Program in Interdisciplinary Neuroscience, National Yang-Ming University and Academia Sinica, Taipei 11529, Taiwan.
- Institute of Cellular and Organismic Biology, Academia Sinica, Taipei 11529, Taiwan.
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Spindola LM, Pan PM, Moretti PN, Ota VK, Santoro ML, Cogo-Moreira H, Gadelha A, Salum G, Manfro GG, Mari JJ, Brentani H, Grassi-Oliveira R, Brietzke E, Miguel EC, Rohde LA, Sato JR, Bressan RA, Belangero SI. Gene expression in blood of children and adolescents: Mediation between childhood maltreatment and major depressive disorder. J Psychiatr Res 2017; 92:24-30. [PMID: 28384542 DOI: 10.1016/j.jpsychires.2017.03.015] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 02/27/2017] [Accepted: 03/20/2017] [Indexed: 12/14/2022]
Abstract
Investigating major depressive disorder (MDD) in childhood and adolescence can help reveal the relative contributions of genetic and environmental factors to MDD, since early stages of disease have less influence of illness exposure. Thus, we investigated the mRNA expression of 12 genes related to the hypothalamic-pituitary-adrenal (HPA) axis, inflammation, neurodevelopment and neurotransmission in the blood of children and adolescents with MDD and tested whether a history of childhood maltreatment (CM) affects MDD through gene expression. Whole-blood mRNA levels of 12 genes were compared among 20 children and adolescents with MDD diagnosis (MDD group), 49 participants without MDD diagnosis but with high levels of depressive symptoms (DS group), and 61 healthy controls (HC group). The differentially expressed genes were inserted in a mediation model in which CM, MDD, and gene expression were, respectively, the independent variable, outcome, and intermediary variable. NR3C1, TNF, TNFR1 and IL1B were expressed at significantly lower levels in the MDD group than in the other groups. CM history did not exert a significant direct effect on MDD. However, an indirect effect of the aggregate expression of the 4 genes mediated the relationship between CM and MDD. In the largest study investigating gene expression in children with MDD, we demonstrated that NR3C1, TNF, TNFR1 and IL1B expression levels are related to MDD and conjunctly mediate the effect of CM history on the risk of developing MDD. This supports a role of glucocorticoids and inflammation as potential effectors of environmental stress in MDD.
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MESH Headings
- Adolescent
- Child
- Child Abuse/psychology
- Cohort Studies
- Depressive Disorder, Major/blood
- Depressive Disorder, Major/physiopathology
- Female
- Gene Expression/physiology
- Genetic Testing
- Humans
- Hypothalamo-Hypophyseal System/metabolism
- Interleukin-1beta/genetics
- Interleukin-1beta/metabolism
- Male
- Models, Biological
- Peptide Fragments/genetics
- Peptide Fragments/metabolism
- Pituitary-Adrenal System/metabolism
- RNA, Messenger/metabolism
- Receptors, Glucocorticoid/genetics
- Receptors, Glucocorticoid/metabolism
- Receptors, Tumor Necrosis Factor, Type I/genetics
- Receptors, Tumor Necrosis Factor, Type I/metabolism
- Residence Characteristics
- Tumor Necrosis Factor-alpha/genetics
- Tumor Necrosis Factor-alpha/metabolism
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Affiliation(s)
- Leticia Maria Spindola
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Pedro Mario Pan
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Patricia Natalia Moretti
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Vanessa Kiyomi Ota
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Marcos Leite Santoro
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil
| | - Hugo Cogo-Moreira
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Ary Gadelha
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Giovanni Salum
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Brazil
| | - Gisele Gus Manfro
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Brazil
| | - Jair Jesus Mari
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Helena Brentani
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department & Institute of Psychiatry, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - Rodrigo Grassi-Oliveira
- Post-Graduation Program in Psychology, Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS), Brazil; Developmental Cognitive Neuroscience Lab, PUCRS, Brazil
| | | | - Euripedes Constantino Miguel
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department & Institute of Psychiatry, Faculdade de Medicina da Universidade de São Paulo, Brazil
| | - Luis Augusto Rohde
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, Hospital de Clínicas de Porto Alegre, Universidade Federal do Rio Grande do Sul, Brazil
| | - João Ricardo Sato
- National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Center of Mathematics, Computation and Cognition, Universidade Federal do ABC, Brazil
| | - Rodrigo Affonseca Bressan
- LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil
| | - Sintia Iole Belangero
- Genetics Division, Department of Morphology and Genetics, Universidade Federal de Sao Paulo (UNIFESP), Brazil; LiNC - Interdisciplinary Laboratory of Clinical Neurosciences, UNIFESP, Brazil; National Institute of Developmental Psychiatry for Children and Adolescents (INPD), Brazil; Department of Psychiatry, UNIFESP, Brazil.
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Hervé M, Bergon A, Le Guisquet AM, Leman S, Consoloni JL, Fernandez-Nunez N, Lefebvre MN, El-Hage W, Belzeaux R, Belzung C, Ibrahim EC. Translational Identification of Transcriptional Signatures of Major Depression and Antidepressant Response. Front Mol Neurosci 2017; 10:248. [PMID: 28848385 PMCID: PMC5550836 DOI: 10.3389/fnmol.2017.00248] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 07/24/2017] [Indexed: 12/12/2022] Open
Abstract
Major depressive disorder (MDD) is a highly prevalent mental illness whose therapy management remains uncertain, with more than 20% of patients who do not achieve response to antidepressants. Therefore, identification of reliable biomarkers to predict response to treatment will greatly improve MDD patient medical care. Due to the inaccessibility and lack of brain tissues from living MDD patients to study depression, researches using animal models have been useful in improving sensitivity and specificity of identifying biomarkers. In the current study, we used the unpredictable chronic mild stress (UCMS) model and correlated stress-induced depressive-like behavior (n = 8 unstressed vs. 8 stressed mice) as well as the fluoxetine-induced recovery (n = 8 stressed and fluoxetine-treated mice vs. 8 unstressed and fluoxetine-treated mice) with transcriptional signatures obtained by genome-wide microarray profiling from whole blood, dentate gyrus (DG), and the anterior cingulate cortex (ACC). Hierarchical clustering and rank-rank hypergeometric overlap (RRHO) procedures allowed us to identify gene transcripts with variations that correlate with behavioral profiles. As a translational validation, some of those transcripts were assayed by RT-qPCR with blood samples from 10 severe major depressive episode (MDE) patients and 10 healthy controls over the course of 30 weeks and four visits. Repeated-measures ANOVAs revealed candidate trait biomarkers (ARHGEF1, CMAS, IGHMBP2, PABPN1 and TBC1D10C), whereas univariate linear regression analyses uncovered candidates state biomarkers (CENPO, FUS and NUBP1), as well as prediction biomarkers predictive of antidepressant response (CENPO, NUBP1). These data suggest that such a translational approach may offer new leads for clinically valid panels of biomarkers for MDD.
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Affiliation(s)
- Mylène Hervé
- Aix Marseille Univ, CNRS, CRN2M UMR 7286Marseille, France.,FondaMental, Fondation de Recherche et de Soins en Santé MentaleCréteil, France
| | - Aurélie Bergon
- Aix Marseille Univ, INSERM, TAGC UMR_S 1090Marseille, France
| | | | - Samuel Leman
- INSERM U930 Eq 4, UFR Sciences et Techniques, Université François RabelaisTours, France
| | - Julia-Lou Consoloni
- Aix Marseille Univ, CNRS, CRN2M UMR 7286Marseille, France.,FondaMental, Fondation de Recherche et de Soins en Santé MentaleCréteil, France.,AP-HM, Hôpital Sainte Marguerite, Pôle de Psychiatrie Universitaire SolarisMarseille, France
| | | | | | - Wissam El-Hage
- INSERM U930 Eq 4, UFR Sciences et Techniques, Université François RabelaisTours, France.,CHRU de Tours, Clinique Psychiatrique UniversitaireTours, France.,INSERM CIC 1415, Centre d'Investigation Clinique, CHRU de ToursTours, France
| | - Raoul Belzeaux
- Aix Marseille Univ, CNRS, CRN2M UMR 7286Marseille, France.,FondaMental, Fondation de Recherche et de Soins en Santé MentaleCréteil, France.,AP-HM, Hôpital Sainte Marguerite, Pôle de Psychiatrie Universitaire SolarisMarseille, France.,McGill Group for Suicide Studies, Douglas Mental Health University Institute, Department of Psychiatry, McGill UniversityMontreal, QC, Canada
| | - Catherine Belzung
- INSERM U930 Eq 4, UFR Sciences et Techniques, Université François RabelaisTours, France
| | - El Chérif Ibrahim
- Aix Marseille Univ, CNRS, CRN2M UMR 7286Marseille, France.,FondaMental, Fondation de Recherche et de Soins en Santé MentaleCréteil, France.,Aix Marseille Univ, CNRS, INT, Inst Neurosci Timone UMR 7289Marseille, France
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Yamagata H, Uchida S, Matsuo K, Harada K, Kobayashi A, Nakashima M, Nakano M, Otsuki K, Abe-Higuchi N, Higuchi F, Watanuki T, Matsubara T, Miyata S, Fukuda M, Mikuni M, Watanabe Y. Identification of commonly altered genes between in major depressive disorder and a mouse model of depression. Sci Rep 2017; 7:3044. [PMID: 28596527 PMCID: PMC5465183 DOI: 10.1038/s41598-017-03291-x] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Accepted: 04/26/2017] [Indexed: 12/11/2022] Open
Abstract
The heterogeneity of depression (due to factors such as varying age of onset) may explain why biological markers of major depressive disorder (MDD) remain uncertain. We aimed to identify gene expression markers of MDD in leukocytes using microarray analysis. We analyzed gene expression profiles of patients with MDD (age ≥50, age of depression onset <50) (N = 10, depressed state; N = 13, remitted state). Seven-hundred and ninety-seven genes (558 upregulated, 239 downregulated when compared to those of 30 healthy subjects) were identified as potential markers for MDD. These genes were then cross-matched to microarray data obtained from a mouse model of depression (676 genes, 148 upregulated, 528 downregulated). Of the six common genes identified between patients and mice, five genes (SLC35A3, HIST1H2AL, YEATS4, ERLIN2, and PLPP5) were confirmed to be downregulated in patients with MDD by quantitative real-time polymerase chain reaction. Of these genes, HIST1H2AL was significantly decreased in a second set of independent subjects (age ≥20, age of onset <50) (N = 18, subjects with MDD in a depressed state; N = 19, healthy control participants). Taken together, our findings suggest that HIST1H2AL may be a biological marker of MDD.
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Affiliation(s)
- Hirotaka Yamagata
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan.
| | - Shusaku Uchida
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Koji Matsuo
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Kenichiro Harada
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Ayumi Kobayashi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Mami Nakashima
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
- Nagatoichinomiya Hospital, 17-35 Katachiyama-midoricho, Shimonoseki, Yamaguchi, 751-0885, Japan
| | - Masayuki Nakano
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
- Katakura Hospital, 229-3 Nishikiwa, Ube, Yamaguchi, 755-0151, Japan
| | - Koji Otsuki
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
- Department of Psychiatry, Shimane University Faculty of Medicine, 89-1 Enya-cho, Izumo, Shimane, 693-8501, Japan
| | - Naoko Abe-Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Fumihiro Higuchi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Toshio Watanuki
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
| | - Toshio Matsubara
- Health Service Center Organization for University Education, Yamaguchi University, 1677-1 Yoshida, Yamaguchi-shi, Yamaguchi, 753-8511, Japan
| | - Shigeo Miyata
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Masato Fukuda
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
| | - Masahiko Mikuni
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, 3-39-22 Showa-machi, Maebashi, Gunma, 371-8511, Japan
- Hakodate Watanabe Hospital, 1-31-1 Yunokawa-cho, Hakodate, Hokkaido, 042-8678, Japan
- Department of Psychiatry, Hokkaido University Graduate School of Medicine, North 15, West 7, Kita-Ku, Sapporo, Hokkaido, 060-8638, Japan
| | - Yoshifumi Watanabe
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-kogushi, Ube, Yamaguchi, 755-8505, Japan
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A support vector machine model provides an accurate transcript-level-based diagnostic for major depressive disorder. Transl Psychiatry 2016; 6:e931. [PMID: 27779627 PMCID: PMC5290347 DOI: 10.1038/tp.2016.198] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/03/2016] [Accepted: 08/17/2016] [Indexed: 01/22/2023] Open
Abstract
Major depressive disorder (MDD) is a critical cause of morbidity and disability with an economic cost of hundreds of billions of dollars each year, necessitating more effective treatment strategies and novel approaches to translational research. A notable barrier in addressing this public health threat involves reliable identification of the disorder, as many affected individuals remain undiagnosed or misdiagnosed. An objective blood-based diagnostic test using transcript levels of a panel of markers would provide an invaluable tool for MDD as the infrastructure-including equipment, trained personnel, billing, and governmental approval-for similar tests is well established in clinics worldwide. Here we present a supervised classification model utilizing support vector machines (SVMs) for the analysis of transcriptomic data readily obtained from a peripheral blood specimen. The model was trained on data from subjects with MDD (n=32) and age- and gender-matched controls (n=32). This SVM model provides a cross-validated sensitivity and specificity of 90.6% for the diagnosis of MDD using a panel of 10 transcripts. We applied a logistic equation on the SVM model and quantified a likelihood of depression score. This score gives the probability of a MDD diagnosis and allows the tuning of specificity and sensitivity for individual patients to bring personalized medicine closer in psychiatry.
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38
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Saavedra K, Molina-Márquez AM, Saavedra N, Zambrano T, Salazar LA. Epigenetic Modifications of Major Depressive Disorder. Int J Mol Sci 2016; 17:ijms17081279. [PMID: 27527165 PMCID: PMC5000676 DOI: 10.3390/ijms17081279] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 07/24/2016] [Accepted: 07/29/2016] [Indexed: 12/17/2022] Open
Abstract
Major depressive disorder (MDD) is a chronic disease whose neurological basis and pathophysiology remain poorly understood. Initially, it was proposed that genetic variations were responsible for the development of this disease. Nevertheless, several studies within the last decade have provided evidence suggesting that environmental factors play an important role in MDD pathophysiology. Alterations in epigenetics mechanism, such as DNA methylation, histone modification and microRNA expression could favor MDD advance in response to stressful experiences and environmental factors. The aim of this review is to describe genetic alterations, and particularly altered epigenetic mechanisms, that could be determinants for MDD progress, and how these alterations may arise as useful screening, diagnosis and treatment monitoring biomarkers of depressive disorders.
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Affiliation(s)
- Kathleen Saavedra
- Center of Molecular Biology and Pharmacogenetics, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile.
| | - Ana María Molina-Márquez
- Center of Molecular Biology and Pharmacogenetics, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile.
| | - Nicolás Saavedra
- Center of Molecular Biology and Pharmacogenetics, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile.
| | - Tomás Zambrano
- Center of Molecular Biology and Pharmacogenetics, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile.
| | - Luis A Salazar
- Center of Molecular Biology and Pharmacogenetics, Scientific and Technological Bioresource Nucleus, Universidad de La Frontera, Temuco 4811230, Chile.
- Millennium Institute for Research in Depression and Personality (MIDAP), Universidad de La Frontera, Temuco 4811230, Chile.
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39
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Lee MY, Kim EY, Kim SH, Cho KC, Ha K, Kim KP, Ahn YM. Discovery of serum protein biomarkers in drug-free patients with major depressive disorder. Prog Neuropsychopharmacol Biol Psychiatry 2016; 69:60-8. [PMID: 27105922 DOI: 10.1016/j.pnpbp.2016.04.009] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Revised: 04/12/2016] [Accepted: 04/18/2016] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Major depressive disorder (MDD) is a systemic and multifactorial disorder involving complex interactions between genetic predisposition and disturbances of various molecular pathways. Its underlying molecular pathophysiology remains unclear, and no valid and objective diagnostic tools for the condition are available. METHODS We performed large-scale proteomic profiling to identify novel peripheral biomarkers implicated in the pathophysiology of MDD in 25 drug-free female MDD patients and 25 healthy controls. First, quantitative serum proteome profiles were obtained and analyzed by liquid chromatography-tandem mass spectrometry using serum samples from 10 MDD patients and 10 healthy controls. Next, candidate biomarker sets, including differentially expressed proteins from the profiling experiment and those identified in the literature, were verified using multiple-reaction monitoring in 25 patients and 25 healthy controls. The final panel of potential biomarkers was selected using multiparametric statistical analysis. RESULTS We identified a serum biomarker panel consisting of six proteins: apolipoprotein D, apolipoprotein B, vitamin D-binding protein, ceruloplasmin, hornerin, and profilin 1, which could be used to distinguish MDD patients from controls with 68% diagnostic accuracy. Our results suggest that modulation of the immune and inflammatory systems and lipid metabolism are involved in the pathophysiology of MDD. CONCLUSIONS Our findings of functional proteomic changes in the peripheral blood of patients with MDD further clarify the molecular biological pathway underlying depression. Further studies using larger, independent cohorts are needed to verify the role of these candidate biomarkers for the diagnosis of MDD.
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Affiliation(s)
- Min Young Lee
- Institute for Systems Biology, Seattle, WA, United States; Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yongin, Republic of Korea
| | - Eun Young Kim
- Department of Psychiatry, Sanggye Paik Hospital, Inje University College of Medicine, Seoul, Republic of Korea
| | - Se Hyun Kim
- Department of Neuropsychiatry, Dongguk University Medical School, Dongguk University International Hospital, Goyang, Republic of Korea
| | - Kyung-Cho Cho
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yongin, Republic of Korea
| | - Kyooseob Ha
- Department of Psychiatry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea;; Seoul National Hospital, Seoul, Republic of Korea; Institute of Human Behavioral Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kwang Pyo Kim
- Department of Applied Chemistry, College of Applied Science, Kyung Hee University, Yongin, Republic of Korea.
| | - Yong Min Ahn
- Department of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea; Institute of Human Behavioral Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.
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40
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Abstract
Major depressive disorder (MDD: unipolar depression) is widely distributed in the USA and world-wide populations and it is one of the leading causes of disability in both adolescents and adults. Traditional diagnostic approaches for MDD are based on patient interviews, which provide a subjective assessment of clinical symptoms which are frequently shared with other maladies. Reliance upon clinical assessments and patient interviews for diagnosing MDD is frequently associated with misdiagnosis and suboptimal treatment outcomes. As such, there is increasing interest in the identification of objective methods for the diagnosis of depression. Newer technologies from genomics, transcriptomics, proteomics, metabolomics and imaging are technically sophisticated and objective but their application to diagnostic tests in psychiatry is still emerging. This brief overview evaluates the technical basis for these technologies and discusses how the extension of their clinical performance can lead to an objective diagnosis of MDD.
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Affiliation(s)
- John A Bilello
- Ridge Diagnostics Laboratories, Research & Development, Research Triangle Park, NC, USA
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41
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Gururajan A, Clarke G, Dinan TG, Cryan JF. Molecular biomarkers of depression. Neurosci Biobehav Rev 2016; 64:101-33. [DOI: 10.1016/j.neubiorev.2016.02.011] [Citation(s) in RCA: 58] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 01/11/2016] [Accepted: 02/12/2016] [Indexed: 12/22/2022]
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Haapakoski R, Ebmeier KP, Alenius H, Kivimäki M. Innate and adaptive immunity in the development of depression: An update on current knowledge and technological advances. Prog Neuropsychopharmacol Biol Psychiatry 2016; 66:63-72. [PMID: 26631274 PMCID: PMC4736094 DOI: 10.1016/j.pnpbp.2015.11.012] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 11/12/2015] [Accepted: 11/24/2015] [Indexed: 12/19/2022]
Abstract
The inflammation theory of depression, proposed over 20years ago, was influenced by early studies on T cell responses and since then has been a stimulus for numerous research projects aimed at understanding the relationship between immune function and depression. Observational studies have shown that indicators of immunity, especially C reactive protein and proinflammatory cytokines, such as interleukin 6, are associated with an increased risk of depressive disorders, although the evidence from randomized trials remains limited and only few studies have assessed the interplay between innate and adaptive immunity in depression. In this paper, we review current knowledge on the interactions between central and peripheral innate and adaptive immune molecules and the potential role of immune-related activation of microglia, inflammasomes and indoleamine-2,3-dioxygenase in the development of depressive symptoms. We highlight how combining basic immune methods with more advanced 'omics' technologies would help us to make progress in unravelling the complex associations between altered immune function and depressive disorders, in the identification of depression-specific biomarkers and in developing immunotherapeutic treatment strategies that take individual variability into account.
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Affiliation(s)
- Rita Haapakoski
- Department of Epidemiology and Public Health, University College London, United Kingdom; Department of Psychiatry, University of Oxford, United Kingdom.
| | - Klaus P Ebmeier
- Department of Psychiatry, University of Oxford, United Kingdom
| | - Harri Alenius
- Finnish Institute of Occupational Health, Systems Toxicology Unit, Helsinki, Finland
| | - Mika Kivimäki
- Department of Epidemiology and Public Health, University College London, United Kingdom; Department of Public Health, Faculty of Medicine, University of Helsinki, Finland
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43
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Nature and nurture: environmental influences on a genetic rat model of depression. Transl Psychiatry 2016; 6:e770. [PMID: 27023176 PMCID: PMC4872452 DOI: 10.1038/tp.2016.28] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 01/12/2016] [Accepted: 01/24/2016] [Indexed: 12/20/2022] Open
Abstract
In this study, we sought to learn whether adverse events such as chronic restraint stress (CRS), or 'nurture' in the form of environmental enrichment (EE), could modify depression-like behavior and blood biomarker transcript levels in a genetic rat model of depression. The Wistar Kyoto More Immobile (WMI) is a genetic model of depression that aided in the identification of blood transcriptomic markers, which successfully distinguished adolescent and adult subjects with major depressive disorders from their matched no-disorder controls. Here, we followed the effects of CRS and EE in adult male WMIs and their genetically similar control strain, the Wistar Kyoto Less Immobile (WLI), that does not show depression-like behavior, by measuring the levels of these transcripts in the blood and hippocampus. In WLIs, increased depression-like behavior and transcriptomic changes were present in response to CRS, but in WMIs no behavioral or additive transcriptomic changes occurred. Environmental enrichment decreased both the inherent depression-like behavior in the WMIs and the behavioral difference between WMIs and WLIs, but did not reverse basal transcript level differences between the strains. The inverse behavioral change induced by CRS and EE in the WLIs did not result in parallel inverse expression changes of the transcriptomic markers, suggesting that these behavioral responses to the environment work via separate molecular pathways. In contrast, 'trait' transcriptomic markers with expression differences inherent and unchanging between the strains regardless of the environment suggest that in our model, environmental and genetic etiologies of depression work through independent molecular mechanisms.
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44
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Miyata S, Kurachi M, Okano Y, Sakurai N, Kobayashi A, Harada K, Yamagata H, Matsuo K, Takahashi K, Narita K, Fukuda M, Ishizaki Y, Mikuni M. Blood Transcriptomic Markers in Patients with Late-Onset Major Depressive Disorder. PLoS One 2016; 11:e0150262. [PMID: 26926397 PMCID: PMC4771207 DOI: 10.1371/journal.pone.0150262] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 02/11/2016] [Indexed: 01/09/2023] Open
Abstract
We investigated transcriptomic markers of late-onset major depressive disorder (LOD; onset age of first depressive episode ≥ 50 years) from the genes expressed in blood cells and identified state-dependent transcriptomic markers in these patients. We assessed the genes expressed in blood cells by microarray and found that the expression levels of 3,066 probes were state-dependently changed in the blood cells of patients with LOD. To select potential candidates from those probes, we assessed the genes expressed in the blood of an animal model of depression, ovariectomized female mice exposed to chronic ultra-mild stress, by microarray and cross-matched the differentially expressed genes between the patients and the model mice. We identified 14 differentially expressed genes that were similarly changed in both patients and the model mice. By assessing statistical significance using real-time quantitative PCR (RT-qPCR), the following 4 genes were selected as candidates: cell death-inducing DFFA-like effector c (CIDEC), ribonuclease 1 (RNASE1), solute carrier family 36 member-1 (SLC36A1), and serine/threonine/tyrosine interacting-like 1 (STYXL1). The discriminating ability of these 4 candidate genes was evaluated in an independent cohort that was validated. Among them, CIDEC showed the greatest discriminant validity (sensitivity 91.3% and specificity 87.5%). Thus, these 4 biomarkers should be helpful for properly diagnosing LOD.
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Affiliation(s)
- Shigeo Miyata
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
- * E-mail:
| | - Masashi Kurachi
- Department of Molecular and Cellular Neurobiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Yoshiko Okano
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Noriko Sakurai
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Ayumi Kobayashi
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Kenichiro Harada
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Hirotaka Yamagata
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Koji Matsuo
- Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, Ube, Yamaguchi, Japan
| | - Keisuke Takahashi
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Kosuke Narita
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Masato Fukuda
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Yasuki Ishizaki
- Department of Molecular and Cellular Neurobiology, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
| | - Masahiko Mikuni
- Departments of Psychiatry and Neuroscience, Gunma University Graduate School of Medicine, Maebashi, Gunma, Japan
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45
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Naughton BJ, Duncan FJ, Murrey DA, Meadows AS, Newsom DE, Stoicea N, White P, Scharre DW, Mccarty DM, Fu H. Blood genome-wide transcriptional profiles reflect broad molecular impairments and strong blood-brain links in Alzheimer's disease. J Alzheimers Dis 2016; 43:93-108. [PMID: 25079797 DOI: 10.3233/jad-140606] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
To date, little is known regarding the etiology and disease mechanisms of Alzheimer's disease (AD). There is a general urgency for novel approaches to advance AD research. In this study, we analyzed blood RNA from female patients with advanced AD and matched healthy controls using genome-wide gene expression microarrays. Our data showed significant alterations in 3,944 genes (≥2-fold, FDR ≤1%) in AD whole blood, including 2,932 genes that are involved in broad biological functions. Importantly, we observed abnormal transcripts of numerous tissue-specific genes in AD blood involving virtually all tissues, especially the brain. Of altered genes, 157 are known to be essential in neurological functions, such as neuronal plasticity, synaptic transmission and neurogenesis. More importantly, 205 dysregulated genes in AD blood have been linked to neurological disease, including AD/dementia and Parkinson's disease, and 43 are known to be the causative genes of 42 inherited mental retardation and neurodegenerative diseases. The detected transcriptional abnormalities also support robust inflammation, profound extracellular matrix impairments, broad metabolic dysfunction, aberrant oxidative stress, DNA damage, and cell death. While the mechanisms are currently unclear, this study demonstrates strong blood-brain correlations in AD. The blood transcriptional profiles reflect the complex neuropathological status in AD, including neuropathological changes and broad somatic impairments. The majority of genes altered in AD blood have not previously been linked to AD. We believe that blood genome-wide transcriptional profiling may provide a powerful and minimally invasive tool for the identification of novel targets beyond Aβ and tauopathy for AD research.
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Affiliation(s)
- Bartholomew J Naughton
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - F Jason Duncan
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Darren A Murrey
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Aaron S Meadows
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - David E Newsom
- Biomedical Genomics Core, Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA
| | - Nicoleta Stoicea
- Division of Cognitive Neurology, Forest Hills Center for Alzheimer's Disease, College of Medicine and Public Health, The Ohio State University, Columbus, OH, USA Department of Neurology, College of Medicine and Public Health, The Ohio State University, Columbus, OH, USA
| | - Peter White
- Biomedical Genomics Core, Center for Microbial Pathogenesis, The Research Institute at Nationwide Children's Hospital, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA Department of Pediatrics, College of Medicine and Public Health, The Ohio State University, Columbus, OH, USA
| | - Douglas W Scharre
- Division of Cognitive Neurology, Forest Hills Center for Alzheimer's Disease, College of Medicine and Public Health, The Ohio State University, Columbus, OH, USA Department of Neurology, College of Medicine and Public Health, The Ohio State University, Columbus, OH, USA
| | - Douglas M Mccarty
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA Department of Pediatrics, College of Medicine and Public Health, The Ohio State University, Columbus, OH, USA
| | - Haiyan Fu
- Center for Gene Therapy, The Research Institute at Nationwide Children's Hospital, Columbus, OH, USA Department of Pediatrics, College of Medicine and Public Health, The Ohio State University, Columbus, OH, USA
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46
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Thase ME. Using biomarkers to predict treatment response in major depressive disorder: evidence from past and present studies. DIALOGUES IN CLINICAL NEUROSCIENCE 2015. [PMID: 25733957 PMCID: PMC4336922 DOI: 10.31887/dcns.2014.16.4/mthase] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Major depressive disorder (MDD) is a heterogeneous condition with a variable response to a wide range of treatments. Despite intensive efforts, no biomarker has been identified to date that can reliably predict response or non-response to any form of treatment, nor has one been identified that can be used to identify those at high risk of developing treatment-resistant depression (ie, non-response to a sequence of treatments delivered for adequate duration and intensity). This manuscript reviews some past areas of research that have proved informative, such as studies using indexes of hypercortisolism or sleep disturbance, and more recent research findings using measures of inflammation and different indicators of regional cortical activation to predict treatment response. It is concluded that, although no method has yet been demonstrated to be sufficiently accurate to be applied in clinical practice, progress has been made. It thus seems likely that—at some point in the not-too-distant future—it will be possible to prospectively identify, at least for some MDD patients, the likelihood of response or non-response to cognitive therapy or various antidepressant medications.
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Affiliation(s)
- Michael E Thase
- Department of Psychiatry, Perelman School of Medicine of the University of Pennsylvania, Philadelphia Veterans Affairs Medical Center, Philadelphia, Pennsylvania, USA; University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania, USA
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47
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Li J, Meng H, Cao W, Qiu T. MiR-335 is involved in major depression disorder and antidepressant treatment through targeting GRM4. Neurosci Lett 2015; 606:167-72. [PMID: 26314506 DOI: 10.1016/j.neulet.2015.08.038] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 07/30/2015] [Accepted: 08/20/2015] [Indexed: 01/28/2023]
Abstract
Major depressive disorder (MDD) is a prevalent mood disorder. Treatment of MDD includes a variety of biopsychosocial approaches. Glutamate receptor, metabotropic 4 (GRM4) has been implicated in the regulation of MDD and it is seen as an attractive target for drug discovery and development. Here we reported using cellular assays and blood samples from MDD patients and showed that miR-335 was downregulated in individuals with depression compared with healthy controls. Additionally, we confirmed that miR-335 can directly target GRM4, which can further regulated the expression of miR-335. Antidepressant drug treatment with citalopram can upregulate miR-335 expression and downregulate GRM4 expression. These results suggest that miR-335 is associated with the pathophysiology of depression and is a potential target for new antidepressant treatments.
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Affiliation(s)
- Jing Li
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400016, China
| | - Huaqing Meng
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400016, China.
| | - Wan Cao
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400016, China
| | - Tian Qiu
- Department of Psychiatry, the First Affiliated Hospital of Chongqing Medical University,Chongqing 400016, China
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48
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Redei EE, Mehta NS. The promise of biomarkers in diagnosing major depression in primary care: the present and future. Curr Psychiatry Rep 2015; 17:601. [PMID: 26081681 DOI: 10.1007/s11920-015-0601-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Major depressive disorder (MDD) is the most prevalent psychiatric disorder, but it can be underdiagnosed or misdiagnosed. Most people with depression are seen in primary care settings, where there are limited resources to diagnose and treat the patient. There is a lack of clinically validated objective laboratory-based diagnostic tests to diagnose MDD; however, it is clear that these tests could greatly improve the correct and timely diagnosis. This review aims to give a cross-sectional view of current efforts of DNA methylomic, transcriptomic, and proteomic approaches to identify biomarkers. We outline our view of the biomarker developmental steps from discovery to clinical application. We then propose that better cooperation will lead us closer to the common goal of identifying biological biomarkers for major depression. "The important thing is not to stop questioning. Curiosity has its own reason for existing." Albert Einstein.
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Affiliation(s)
- Eva E Redei
- The Asher Center for the Study and Treatment of Depressive Disorders, Department of Psychiatry and Behavioral Sciences, Feinberg School of Medicine, Northwestern University, 303 E Chicago Ave 13-100, Chicago, IL, 60611, USA,
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49
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Bartova L, Meyer BM, Diers K, Rabl U, Scharinger C, Popovic A, Pail G, Kalcher K, Boubela RN, Huemer J, Mandorfer D, Windischberger C, Sitte HH, Kasper S, Praschak-Rieder N, Moser E, Brocke B, Pezawas L. Reduced default mode network suppression during a working memory task in remitted major depression. J Psychiatr Res 2015; 64:9-18. [PMID: 25801734 PMCID: PMC4415908 DOI: 10.1016/j.jpsychires.2015.02.025] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/10/2014] [Revised: 01/14/2015] [Accepted: 02/26/2015] [Indexed: 01/06/2023]
Abstract
Insufficient default mode network (DMN) suppression was linked to increased rumination in symptomatic Major Depressive Disorder (MDD). Since rumination is known to predict relapse and a more severe course of MDD, we hypothesized that similar DMN alterations might also exist during full remission of MDD (rMDD), a condition known to be associated with increased relapse rates specifically in patients with adolescent onset. Within a cross-sectional functional magnetic resonance imaging study activation and functional connectivity (FC) were investigated in 120 adults comprising 78 drug-free rMDD patients with adolescent- (n = 42) and adult-onset (n = 36) as well as 42 healthy controls (HC), while performing the n-back task. Compared to HC, rMDD patients showed diminished DMN deactivation with strongest differences in the anterior-medial prefrontal cortex (amPFC), which was further linked to increased rumination response style. On a brain systems level, rMDD patients showed an increased FC between the amPFC and the dorsolateral prefrontal cortex, which constitutes a key region of the antagonistic working-memory network. Both whole-brain analyses revealed significant differences between adolescent-onset rMDD patients and HC, while adult-onset rMDD patients showed no significant effects. Results of this study demonstrate that reduced DMN suppression exists even after full recovery of depressive symptoms, which appears to be specifically pronounced in adolescent-onset MDD patients. Our results encourage the investigation of DMN suppression as a putative predictor of relapse in clinical trials, which might eventually lead to important implications for antidepressant maintenance treatment.
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Affiliation(s)
- Lucie Bartova
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Bernhard M. Meyer
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Kersten Diers
- Department of Psychology, Dresden University of Technology, Dresden, Germany
| | - Ulrich Rabl
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Christian Scharinger
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Ana Popovic
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Gerald Pail
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Klaudius Kalcher
- MR Centre of Excellence, Medical University of Vienna, Vienna, Austria,Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Roland N. Boubela
- MR Centre of Excellence, Medical University of Vienna, Vienna, Austria,Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Julia Huemer
- Department of Child and Adolescent Psychiatry, Medical University of Vienna, Vienna, Austria
| | - Dominik Mandorfer
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Christian Windischberger
- MR Centre of Excellence, Medical University of Vienna, Vienna, Austria,Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Harald H. Sitte
- Center of Physiology and Pharmacology, Institute of Pharmacology, Medical University of Vienna, Vienna, Austria
| | - Siegfried Kasper
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Nicole Praschak-Rieder
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Ewald Moser
- MR Centre of Excellence, Medical University of Vienna, Vienna, Austria,Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Vienna, Austria
| | - Burkhard Brocke
- Department of Psychology, Dresden University of Technology, Dresden, Germany
| | - Lukas Pezawas
- Division of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria.
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50
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Genome-wide methylation study on depression: differential methylation and variable methylation in monozygotic twins. Transl Psychiatry 2015; 5:e557. [PMID: 25918994 PMCID: PMC4462612 DOI: 10.1038/tp.2015.49] [Citation(s) in RCA: 91] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2014] [Revised: 03/02/2015] [Accepted: 03/09/2015] [Indexed: 12/13/2022] Open
Abstract
Depressive disorders have been shown to be highly influenced by environmental pathogenic factors, some of which are believed to exert stress on human brain functioning via epigenetic modifications. Previous genome-wide methylomic studies on depression have suggested that, along with differential DNA methylation, affected co-twins of monozygotic (MZ) pairs have increased DNA methylation variability, probably in line with theories of epigenetic stochasticity. Nevertheless, the potential biological roots of this variability remain largely unexplored. The current study aimed to evaluate whether DNA methylation differences within MZ twin pairs were related to differences in their psychopathological status. Data from the Illumina Infinium HumanMethylation450 Beadchip was used to evaluate peripheral blood DNA methylation of 34 twins (17 MZ pairs). Two analytical strategies were used to identify (a) differentially methylated probes (DMPs) and (b) variably methylated probes (VMPs). Most DMPs were located in genes previously related to neuropsychiatric phenotypes. Remarkably, one of these DMPs (cg01122889) was located in the WDR26 gene, the DNA sequence of which has been implicated in major depressive disorder from genome-wide association studies. Expression of WDR26 has also been proposed as a biomarker of depression in human blood. Complementarily, VMPs were located in genes such as CACNA1C, IGF2 and the p38 MAP kinase MAPK11, showing enrichment for biological processes such as glucocorticoid signaling. These results expand on previous research to indicate that both differential methylation and differential variability have a role in the etiology and clinical manifestation of depression, and provide clues on specific genomic loci of potential interest in the epigenetics of depression.
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