1
|
González-Castro TB, Rodríguez-Fuentes I, Tovilla-Zárate CA, Juárez-Rojop IE, Hernández-Díaz Y, López-Narváez ML, Uresti-Rivera EE, Hernández-Vicencio JL. The role of SKA2 on affective disorder, post-traumatic stress disorder and suicide behavior: systematic review and in silico analysis. Metab Brain Dis 2024; 39:1005-1014. [PMID: 38722562 DOI: 10.1007/s11011-024-01346-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Accepted: 05/04/2024] [Indexed: 07/10/2024]
Abstract
Genes involved in the hypothalamic-pituitary-adrenal axis may be a robust biomarker of psychiatric disorders. Genetic polymorphisms of the SKA2 gene are associated with several behavioral disorders. In this study, we embarked on a systematic search of all possible reports of genetic association with SKA2 and affective disorder, post-traumatic stress disorder, and suicide behavior; the functional consequences of nsSNPs were explored through computational tools with an in silico analysis. Eight eligible articles were included. Our study identified that SKA2 did not show association with risk of Major Depression Disorder. Epigenetic variation at SKA2 mediates vulnerability to Post-Traumatic Stress Disorder. Studies provide strong preliminary evidence that alterations at the SKA2 gene covary with types of suicide behavior, including suicidal ideation, attempts, and completions. Results from in silico analysis predicted that I22S, I22G, I78T, A15L, D18R, R25L, N42I, Y21S, K14I, K14L, and L60R were the most structurally and functionally significant nsSNPs in SKA2. Amino acid conservation analysis revealed that the amino acids were highly conserved and some dissimilarities of mutant type amino acids from wild-type amino acids such as charge, size, and hydrophobicity were observed. In the future, SKA2 gene have the potential to be evaluated as prognostic biomarkers for diagnosis and research.
Collapse
Affiliation(s)
- Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, México
| | - Itzel Rodríguez-Fuentes
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, México
| | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco, Tabasco, México
| | - Isela Esther Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa, Tabasco, México
| | - Yazmín Hernández-Díaz
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez, Tabasco, México.
| | | | - Edith Elena Uresti-Rivera
- Facultad de Ciencias Químicas, Universidad Autónoma de San Luis Potosí, San Luis Potosí, SLP, México
- Centro de Investigación en Ciencias de la Salud y Biomedicina, Universidad Autónoma de San Luis Potosí, San Luis Potosí, SLP, México
| | | |
Collapse
|
2
|
Sun S, Liu Q, Wang Z, Huang YY, Sublette ME, Dwork AJ, Rosoklija G, Ge Y, Galfalvy H, Mann JJ, Haghighi F. Brain and blood transcriptome profiles delineate common genetic pathways across suicidal ideation and suicide. Mol Psychiatry 2024; 29:1417-1426. [PMID: 38278992 PMCID: PMC11189724 DOI: 10.1038/s41380-024-02420-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: 05/19/2023] [Revised: 01/02/2024] [Accepted: 01/05/2024] [Indexed: 01/28/2024]
Abstract
Human genetic studies indicate that suicidal ideation and behavior are both heritable. Most studies have examined associations between aberrant gene expression and suicide behavior, but behavior risk is linked to the severity of suicidal ideation. Through a gene network approach, this study investigates how gene co-expression patterns are associated with suicidal ideation and severity using RNA-seq data in peripheral blood from 46 live participants with elevated suicidal ideation and 46 with no ideation. Associations with the presence of suicidal ideation were found within 18 co-expressed modules (p < 0.05), as well as in 3 co-expressed modules associated with suicidal ideation severity (p < 0.05, not explained by severity of depression). Suicidal ideation presence and severity-related gene modules with enrichment of genes involved in defense against microbial infection, inflammation, and adaptive immune response were identified and investigated using RNA-seq data from postmortem brain that revealed gene expression differences with moderate effect sizes in suicide decedents vs. non-suicides in white matter, but not gray matter. Findings support a role of brain and peripheral blood inflammation in suicide risk, showing that suicidal ideation presence and severity are associated with an inflammatory signature detectable in blood and brain, indicating a biological continuity between ideation and suicidal behavior that may underlie a common heritability.
Collapse
Affiliation(s)
- Shengnan Sun
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- James J. Peters VA Medical Center, Bronx, NY, 10468, USA
| | - Qingkun Liu
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- James J. Peters VA Medical Center, Bronx, NY, 10468, USA
| | - Zhaoyu Wang
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
- James J. Peters VA Medical Center, Bronx, NY, 10468, USA
| | - Yung-Yu Huang
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - M Elizabeth Sublette
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Andrew J Dwork
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Gorazd Rosoklija
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Yongchao Ge
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Hanga Galfalvy
- James J. Peters VA Medical Center, Bronx, NY, 10468, USA
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
| | - J John Mann
- Department of Psychiatry, Columbia University, New York, NY, 10032, USA
- Division of Molecular Imaging and Neuropathology, New York State Psychiatric Institute, New York, NY, 10032, USA
| | - Fatemeh Haghighi
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA.
- James J. Peters VA Medical Center, Bronx, NY, 10468, USA.
| |
Collapse
|
3
|
Bernad BC, Tomescu MC, Anghel T, Lungeanu D, Enătescu V, Bernad ES, Nicoraș V, Arnautu DA, Hogea L. Epigenetic and Coping Mechanisms of Stress in Affective Disorders: A Scoping Review. MEDICINA (KAUNAS, LITHUANIA) 2024; 60:709. [PMID: 38792892 PMCID: PMC11122772 DOI: 10.3390/medicina60050709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2024] [Revised: 04/17/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024]
Abstract
This review aims to explore the intricate relationship among epigenetic mechanisms, stress, and affective disorders, focusing on how early life experiences and coping mechanisms contribute to susceptibility to mood disorders. Epigenetic factors play a crucial role in regulating gene expression without altering the DNA (deoxyribonucleic acid) sequence, and recent research has revealed associations between epigenetic changes and maladaptive responses to stress or psychiatric disorders. A scoping review of 33 studies employing the PRISMA-S (Preferred Reporting Items for Systematic Reviews and Meta-Analyses-Statement) guidelines investigates the role of stress-induced epigenetic mechanisms and coping strategies in affective disorder occurrence, development, and progression. The analysis encompasses various stress factors, including childhood trauma, work-related stress, and dietary deficiencies, alongside epigenetic changes, such as DNA methylation and altered gene expression. Findings indicate that specific stress-related genes frequently exhibit epigenetic changes associated with affective disorders. Moreover, the review examines coping mechanisms in patients with bipolar disorder and major depressive disorder, revealing mixed associations between coping strategies and symptom severity. While active coping is correlated with better outcomes, emotion-focused coping may exacerbate depressive or manic episodes. Overall, this review underscores the complex interplay among genetic predisposition, environmental stressors, coping mechanisms, and affective disorders. Understanding these interactions is essential for developing targeted interventions and personalized treatment strategies for individuals with mood disorders. However, further research is needed to elucidate specific genomic loci involved in affective disorders and the clinical implications of coping strategies in therapeutic settings.
Collapse
Affiliation(s)
- Brenda-Cristiana Bernad
- Doctoral School, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania;
- Center for Neuropsychology and Behavioral Medicine, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania; (T.A.); (L.H.)
- Multidisciplinary Heart Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania; (M.-C.T.); (D.-A.A.)
| | - Mirela-Cleopatra Tomescu
- Multidisciplinary Heart Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania; (M.-C.T.); (D.-A.A.)
- Department of Internal Medicine, ”Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Timisoara Municipal Clinical Emergency Hospital, 300040 Timișoara, Romania
| | - Teodora Anghel
- Center for Neuropsychology and Behavioral Medicine, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania; (T.A.); (L.H.)
- Department of Neuroscience, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania;
| | - Diana Lungeanu
- Center for Modeling Biological Systems and Data Analysis, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania;
- Department of Functional Sciences, Faculty of Medicine, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania
| | - Virgil Enătescu
- Department of Neuroscience, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania;
- Clinic of Psychiatry, “Pius Brinzeu” County Clinical Emergency Hospital, 300723 Timișoara, Romania
| | - Elena Silvia Bernad
- Center for Neuropsychology and Behavioral Medicine, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania; (T.A.); (L.H.)
- Department of Obstetrics and Gynecology, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania
- Ist Clinic of Obstetrics and Gynecology, “Pius Brinzeu” County Clinical Emergency Hospital, 300723 Timișoara, Romania;
- Center for Laparoscopy, Laparoscopic Surgery and In Vitro Fertilization, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
| | - Vlad Nicoraș
- Ist Clinic of Obstetrics and Gynecology, “Pius Brinzeu” County Clinical Emergency Hospital, 300723 Timișoara, Romania;
| | - Diana-Aurora Arnautu
- Multidisciplinary Heart Research Center, “Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania; (M.-C.T.); (D.-A.A.)
- Department of Internal Medicine, ”Victor Babes” University of Medicine and Pharmacy, 300041 Timișoara, Romania
- Institute of Cardiovascular Diseases Timișoara, 300310 Timișoara, Romania
| | - Lavinia Hogea
- Center for Neuropsychology and Behavioral Medicine, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania; (T.A.); (L.H.)
- Department of Neuroscience, “Victor Babes” University of Medicine and Pharmacy from Timișoara, 300041 Timișoara, Romania;
| |
Collapse
|
4
|
Valenzuela-García LI, Ayala-García VM, Ramos-Rosales DF, Jacquez-Flores RE, Urtiz-Estrada N, Hernández EMM, Barraza-Salas M. The rs7208505 Polymorphism and Differential Expression of the SKA2 Gene in the Prefrontal Cortex of Suicide Victims from the Mexican Population. Arch Suicide Res 2024; 28:674-685. [PMID: 37204142 DOI: 10.1080/13811118.2023.2209155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
OBJECTIVE The main aim of the current study was to investigate whether SKA2 gene expression in the postmortem brain of rs7208505 genotype are altered in suicide victims from a Mexican population. METHODS In this study, we report a genetic analysis of expression levels of the SKA2 gene in the prefrontal cortex of the postmortem brain of suicidal subjects (n = 22) compared to subjects who died of causes other than suicide (n = 22) in a Mexican population using RT-qPCR assays. Additionally, we genotyped the rs7208505 polymorphism in suicide victims (n = 98) and controls (n = 88) and we evaluate the association of genotypes for the SNP rs7208505 with expression level of SKA2. RESULTS The results showed that the expression of the SKA2 gene was significantly higher in suicide victims compared to control subjects (p = 0.044). Interestingly, we observed a greater proportion of allele A of the rs7208505 in suicide victims than controls. Even though there was no association between the SNP with suicide in the study population we found a significative association of the expression level from SKA2 with the allele A of the rs7208505 and suicide. CONCLUSION The evidence suggests that the expression of SKA2 in the prefrontal cortex may be a critical factor in the etiology of suicidal behavior.
Collapse
|
5
|
Hartmann J, Bajaj T, Otten J, Klengel C, Ebert T, Gellner AK, Junglas E, Hafner K, Anderzhanova EA, Tang F, Missig G, Rexrode L, Trussell DT, Li KX, Pöhlmann ML, Mackert S, Geiger TM, Heinz DE, Lardenoije R, Dedic N, McCullough KM, Próchnicki T, Rhomberg T, Martinelli S, Payton A, Robinson AC, Stein V, Latz E, Carlezon WA, Hausch F, Schmidt MV, Murgatroyd C, Berretta S, Klengel T, Pantazopoulos H, Ressler KJ, Gassen NC. SKA2 regulated hyperactive secretory autophagy drives neuroinflammation-induced neurodegeneration. Nat Commun 2024; 15:2635. [PMID: 38528004 PMCID: PMC10963788 DOI: 10.1038/s41467-024-46953-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 03/15/2024] [Indexed: 03/27/2024] Open
Abstract
High levels of proinflammatory cytokines induce neurotoxicity and catalyze inflammation-driven neurodegeneration, but the specific release mechanisms from microglia remain elusive. Here we show that secretory autophagy (SA), a non-lytic modality of autophagy for secretion of vesicular cargo, regulates neuroinflammation-mediated neurodegeneration via SKA2 and FKBP5 signaling. SKA2 inhibits SA-dependent IL-1β release by counteracting FKBP5 function. Hippocampal Ska2 knockdown in male mice hyperactivates SA resulting in neuroinflammation, subsequent neurodegeneration and complete hippocampal atrophy within six weeks. The hyperactivation of SA increases IL-1β release, contributing to an inflammatory feed-forward vicious cycle including NLRP3-inflammasome activation and Gasdermin D-mediated neurotoxicity, which ultimately drives neurodegeneration. Results from protein expression and co-immunoprecipitation analyses of male and female postmortem human brains demonstrate that SA is hyperactivated in Alzheimer's disease. Overall, our findings suggest that SKA2-regulated, hyperactive SA facilitates neuroinflammation and is linked to Alzheimer's disease, providing mechanistic insight into the biology of neuroinflammation.
Collapse
Affiliation(s)
- Jakob Hartmann
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA.
| | - Thomas Bajaj
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, 53127, Bonn, Germany
| | - Joy Otten
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, 37075, Göttingen, Germany
| | - Claudia Klengel
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
| | - Tim Ebert
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, 53127, Bonn, Germany
| | - Anne-Kathrin Gellner
- Department of Psychiatry and Psychotherapy, University of Bonn, 53127, Bonn, Germany
| | - Ellen Junglas
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, 53127, Bonn, Germany
| | - Kathrin Hafner
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804, Munich, Germany
| | - Elmira A Anderzhanova
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, 53127, Bonn, Germany
- Research Group Neuronal Plasticity, Max Planck Institute of Psychiatry, 80804, Munich, Germany
| | - Fiona Tang
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804, Munich, Germany
| | - Galen Missig
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
| | - Lindsay Rexrode
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Daniel T Trussell
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Katelyn X Li
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
| | - Max L Pöhlmann
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804, Munich, Germany
| | - Sarah Mackert
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, 53127, Bonn, Germany
| | - Thomas M Geiger
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287, Darmstadt, Germany
| | - Daniel E Heinz
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, 53127, Bonn, Germany
- Research Group Neuronal Plasticity, Max Planck Institute of Psychiatry, 80804, Munich, Germany
| | - Roy Lardenoije
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, 37075, Göttingen, Germany
| | - Nina Dedic
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
| | - Kenneth M McCullough
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
| | - Tomasz Próchnicki
- Institute of Innate Immunity, University Hospital Bonn, 53127, Bonn, Germany
| | - Thomas Rhomberg
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
| | - Silvia Martinelli
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804, Munich, Germany
| | - Antony Payton
- Division of Informatics, Imaging and Data Sciences, University of Manchester, Manchester, M13 9PL, UK
| | - Andrew C Robinson
- Division of Neuroscience, Faculty of Biology, Medicine and Health, School of Biological Sciences, The University of Manchester, Salford Royal Hospital, Salford, M6 8HD, UK
- Geoffrey Jefferson Brain Research Centre, Manchester Academic Health Science Centre (MAHSC), Manchester, UK
| | - Valentin Stein
- Institute of Physiology II, University of Bonn, 53127, Bonn, Germany
| | - Eicke Latz
- Institute of Innate Immunity, University Hospital Bonn, 53127, Bonn, Germany
- Deutsches Rheuma Forschungszentrum Berlin (DRFZ), 10117, Berlin, Germany
| | - William A Carlezon
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
| | - Felix Hausch
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, 64287, Darmstadt, Germany
| | - Mathias V Schmidt
- Research Group Neurobiology of Stress Resilience, Max Planck Institute of Psychiatry, 80804, Munich, Germany
| | - Chris Murgatroyd
- Department of Life Sciences, Manchester Metropolitan University, Manchester, M15 6BH, UK
| | - Sabina Berretta
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
| | - Torsten Klengel
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA
- Department of Psychiatry and Psychotherapy, University Medical Center Göttingen, 37075, Göttingen, Germany
| | - Harry Pantazopoulos
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Kerry J Ressler
- Department of Psychiatry, Harvard Medical School, McLean Hospital, Belmont, MA, 02478, USA.
| | - Nils C Gassen
- Research Group Neurohomeostasis, Department of Psychiatry and Psychotherapy, University of Bonn, 53127, Bonn, Germany.
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, 80804, Munich, Germany.
| |
Collapse
|
6
|
Garcia-Ruiz B, Jiménez E, Aranda S, Verdolini N, Gutiérrez-Zotes A, Sáez C, Losantos E, Alonso-Lana S, Fatjó-Vilas M, Sarró S, Torres L, Panicalli F, Bonnin CDM, Pomarol-Clotet E, Vieta E, Vilella E. Associations of altered leukocyte DDR1 promoter methylation and childhood trauma with bipolar disorder and suicidal behavior in euthymic patients. Mol Psychiatry 2024:10.1038/s41380-024-02522-8. [PMID: 38503928 DOI: 10.1038/s41380-024-02522-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 03/04/2024] [Accepted: 03/06/2024] [Indexed: 03/21/2024]
Abstract
Altered DNA methylation (DNAm) patterns of discoidin domain receptor 1 (DDR1) have been found in the blood and brain of patients with schizophrenia (SCZ) and the brain of patients with bipolar disorder (BD). Childhood trauma (CT) is associated with changes in DNAm that in turn are related to suicidal behavior (SB) in patients with several psychiatric disorders. Here, using MassARRAY® technology, we studied 128 patients diagnosed with BD in remission and 141 healthy controls (HCs) to compare leukocyte DDR1 promoter DNAm patterns between patients and HCs and between patients with and without SB. Additionally, we investigated whether CT was associated with DDR1 DNAm and mediated SB. We found hypermethylation at DDR1 cg19215110 and cg23953820 sites and hypomethylation at cg14279856 and cg03270204 sites in patients with BD compared to HCs. Logistic regression models showed that hypermethylation of DDR1 cg23953820 but not cg19215110 and CT were risk factors for BD, while cg14279856 and cg03270204 hypomethylation were protective factors. In patients, CT was a risk factor for SB, but DDR1 DNAm, although associated with CT, did not mediate the association of CT with SB. This is the first study demonstrating altered leukocyte DDR1 promoter DNAm in euthymic patients with BD. We conclude that altered DDR1 DNAm may be related to immune and inflammatory mechanisms and could be a potential blood biomarker for the diagnosis and stratification of psychiatric patients.
Collapse
Affiliation(s)
- Beatriz Garcia-Ruiz
- Hospital Universitari Institut Pere Mata, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV)-CERCA, Tarragona, Spain
- Universitat Rovira i Virgili (URV), Reus, Spain
| | - Esther Jiménez
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
- Bipolar and Depressive Disorders Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- Departament de Medicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Institute of Neurosciences (UBNeuro), Universitat de Barcelona, Barcelon, Spain
| | - Selena Aranda
- Hospital Universitari Institut Pere Mata, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV)-CERCA, Tarragona, Spain
- Universitat Rovira i Virgili (URV), Reus, Spain
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
| | - Norma Verdolini
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
- Bipolar and Depressive Disorders Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- Departament de Medicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Institute of Neurosciences (UBNeuro), Universitat de Barcelona, Barcelon, Spain
- FIDMAG Research Foundation, Germanes Hospitalàries, Barcelona, Spain
| | - Alfonso Gutiérrez-Zotes
- Hospital Universitari Institut Pere Mata, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV)-CERCA, Tarragona, Spain
- Universitat Rovira i Virgili (URV), Reus, Spain
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
| | - Cristina Sáez
- Hospital Universitari Institut Pere Mata, Reus, Spain
- Institut d'Investigació Sanitària Pere Virgili (IISPV)-CERCA, Tarragona, Spain
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
| | | | - Silvia Alonso-Lana
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
- FIDMAG Research Foundation, Germanes Hospitalàries, Barcelona, Spain
- Research Center and Memory Clinic Fundació ACE, Barcelona, Spain
- Institut Català de Neurociències Aplicades, Universitat Internacional de Catalunya, Barcelona, Spain
| | - Mar Fatjó-Vilas
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
- FIDMAG Research Foundation, Germanes Hospitalàries, Barcelona, Spain
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Facultat de Biologia, Universitat de Barcelona, Barcelona, Spain
| | - Salvador Sarró
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
- FIDMAG Research Foundation, Germanes Hospitalàries, Barcelona, Spain
| | - Llanos Torres
- Hospital Mare de Déu de la Mercè, Unitat Polivalent, Germanes Hospitalàries, Barcelona, Spain
| | - Francesco Panicalli
- Benito Menni Complex Assistencial en Salut Mental, Germanes Hospitalàries, Sant Boi de Llobregat, Barcelona, Spain
| | - Caterina Del Mar Bonnin
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
- Bipolar and Depressive Disorders Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- Departament de Medicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Institute of Neurosciences (UBNeuro), Universitat de Barcelona, Barcelon, Spain
| | - Edith Pomarol-Clotet
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
- FIDMAG Research Foundation, Germanes Hospitalàries, Barcelona, Spain
| | - Eduard Vieta
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain
- Bipolar and Depressive Disorders Unit, Hospital Clínic de Barcelona, Barcelona, Spain
- Departament de Medicina, Facultat de Medicina i Ciències de la Salut, Universitat de Barcelona (UB), Barcelona, Spain
- Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Spain
- Institute of Neurosciences (UBNeuro), Universitat de Barcelona, Barcelon, Spain
| | - Elisabet Vilella
- Hospital Universitari Institut Pere Mata, Reus, Spain.
- Institut d'Investigació Sanitària Pere Virgili (IISPV)-CERCA, Tarragona, Spain.
- Universitat Rovira i Virgili (URV), Reus, Spain.
- Centro de investigación biomédica en red en salud mental (CIBERSAM)-Instituto de Salud Carlos III, Madrid, Spain.
| |
Collapse
|
7
|
Zheng Y, Lunetta KL, Liu C, Smith AK, Sherva R, Miller MW, Logue MW. A novel principal component based method for identifying differentially methylated regions in Illumina Infinium MethylationEPIC BeadChip data. Epigenetics 2023; 18:2207959. [PMID: 37196182 PMCID: PMC10193914 DOI: 10.1080/15592294.2023.2207959] [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: 09/18/2022] [Revised: 03/22/2023] [Accepted: 04/19/2023] [Indexed: 05/19/2023] Open
Abstract
Differentially methylated regions (DMRs) are genomic regions with methylation patterns across multiple CpG sites that are associated with a phenotype. In this study, we proposed a Principal Component (PC) based DMR analysis method for use with data generated using the Illumina Infinium MethylationEPIC BeadChip (EPIC) array. We obtained methylation residuals by regressing the M-values of CpGs within a region on covariates, extracted PCs of the residuals, and then combined association information across PCs to obtain regional significance. Simulation-based genome-wide false positive (GFP) rates and true positive rates were estimated under a variety of conditions before determining the final version of our method, which we have named DMRPC. Then, DMRPC and another DMR method, coMethDMR, were used to perform epigenome-wide analyses of several phenotypes known to have multiple associated methylation loci (age, sex, and smoking) in a discovery and a replication cohort. Among regions that were analysed by both methods, DMRPC identified 50% more genome-wide significant age-associated DMRs than coMethDMR. The replication rate for the loci that were identified by only DMRPC was higher than the rate for those that were identified by only coMethDMR (90% for DMRPC vs. 76% for coMethDMR). Furthermore, DMRPC identified replicable associations in regions of moderate between-CpG correlation which are typically not analysed by coMethDMR. For the analyses of sex and smoking, the advantage of DMRPC was less clear. In conclusion, DMRPC is a new powerful DMR discovery tool that retains power in genomic regions with moderate correlation across CpGs.
Collapse
Affiliation(s)
- Yuanchao Zheng
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Kathryn L. Lunetta
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Chunyu Liu
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Alicia K. Smith
- Department of Gynecology and Obstetrics, Emory University, Atlanta, GA, USA
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Richard Sherva
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA
- Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Mark W. Miller
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA
- Biomedical Genetics, Boston University School of Medicine, Boston, MA, USA
| | - Mark W. Logue
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
- Biomedical Genetics, Boston University School of Medicine, Boston, MA, USA
| |
Collapse
|
8
|
Aboul-Ata MA, Qonsua FT, Saadi IAA. Personality Pathology and Suicide Risk: Examining the Relationship Between DSM-5 Alternative Model Traits and Suicidal Ideation and Behavior in College-Aged Individuals. Psychol Rep 2023:332941231218940. [PMID: 38029776 DOI: 10.1177/00332941231218940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
BACKGROUND This study examines the link between personality pathology and suicide risk regarding the DSM-5 alternative model of personality disorders. METHOD The study investigates the facets, domains, internalizing, and externalizing of personality pathology and their correlation and predictive significance for suicidal ideation and behavior. This study examined a diverse and balanced sample of 1,398 college students aged between 18- and 29-year-olds from nine colleges in Kafrelshiekh University, with nearly equal representation of both genders (687 males, 711 females), a mix of rural and urban residents (807 rural, 591 urban), and a wide range of socioeconomic backgrounds (15 very low SES, 84 low SES, 878 moderate SES, 364 high SES, and 57 very high SES). The Personality Inventory for the DSM-5 (PID-5) was utilized to assess personality pathology. Columbia-Suicide Severity Rating Scale (C-SSRS) was used to evaluate suicidal ideation and behavior. RESULTS AND DISCUSSION Logistic regression reveals significant associations between personality traits and suicidal ideation (e.g., Anhedonia, Suspiciousness) and behavior (e.g., Risk Taking, Depressivity). Negative Affect and Detachment are significantly linked to suicidal ideation, while Detachment, Disinhibition, and Psychoticism are linked to suicidal behavior. Internalizing personality pathology predicts both ideation and behavior, indicating a contribution to suicidal thoughts and self-destructive acts. Externalizing is a significant predictor of suicidal behavior.
Collapse
Affiliation(s)
| | - Faten T Qonsua
- Department of Psychology, Kafrelsheikh University, Kafr el-Sheikh, Egypt
| | - Ibrahim A A Saadi
- Department of Psychology, University of Jeddah, Jeddah, Saudi Arabia
| |
Collapse
|
9
|
Sun S, Liu Q, Wang Z, Huang YY, Sublette M, Dwork A, Rosoklija G, Ge Y, Galfalvy H, Mann JJ, Haghighi F. Functional Architecture of Brain and Blood Transcriptome Delineate Biological Continuity Between Suicidal Ideation and Suicide. RESEARCH SQUARE 2023:rs.3.rs-2958575. [PMID: 37398042 PMCID: PMC10312911 DOI: 10.21203/rs.3.rs-2958575/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Human genetic studies indicate that suicidal ideation and behavior are both heritable. Most studies have examined associations between aberrant gene expression and suicide behavior, but behavior risk is linked to severity of suicidal ideation. Through a gene network approach, this study investigates how gene co-expression patterns are associated with suicidal ideation and severity using RNA-seq data in peripheral blood from 46 live participants with elevated suicidal ideation and 46 with no ideation. Associations with presence and severity of suicidal ideation were found within 18 and 3 co-expressed modules respectively (p < 0.05), not explained by severity of depression. Suicidal ideation presence and severity-related gene modules with enrichment of genes involved in defense against microbial infection, inflammation, and adaptive immune response were identified, and tested using RNA-seq data from postmortem brain that revealed gene expression differences in suicide decedents vs. non-suicides in white matter, but not gray matter. Findings support a role of brain and peripheral blood inflammation in suicide risk, showing that suicidal ideation presence and severity is associated with an inflammatory signature detectable in blood and brain, indicating a biological continuity between ideation and suicidal behavior that may underlie a common heritability.
Collapse
|
10
|
Kelley DP, Albrechet‐Souza L, Cruise S, Maiya R, Destouni A, Sakamuri SSVP, Duplooy A, Hibicke M, Nichols C, Katakam PVG, Gilpin NW, Francis J. Conditioned place avoidance is associated with a distinct hippocampal phenotype, partly preserved pattern separation, and reduced reactive oxygen species production after stress. GENES, BRAIN, AND BEHAVIOR 2023; 22:e12840. [PMID: 36807494 PMCID: PMC10067435 DOI: 10.1111/gbb.12840] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 01/23/2023] [Accepted: 01/23/2023] [Indexed: 02/20/2023]
Abstract
Stress is associated with contextual memory deficits, which may mediate avoidance of trauma-associated contexts in posttraumatic stress disorder. These deficits may emerge from impaired pattern separation, the independent representation of similar experiences by the dentate gyrus-Cornu Ammonis 3 (DG-CA3) circuit of the dorsal hippocampus, which allows for appropriate behavioral responses to specific environmental stimuli. Neurogenesis in the DG is controlled by mitochondrial reactive oxygen species (ROS) production, and may contribute to pattern separation. In Experiment 1, we performed RNA sequencing of the dorsal hippocampus 16 days after stress in rats that either develop conditioned place avoidance to a predator urine-associated context (Avoiders), or do not (Non-Avoiders). Weighted genome correlational network analysis showed that increased expression of oxidative phosphorylation-associated gene transcripts and decreased expression of gene transcripts for axon guidance and insulin signaling were associated with avoidance behavior. Based on these data, in Experiment 2, we hypothesized that Avoiders would exhibit elevated hippocampal (HPC) ROS production and degraded object pattern separation (OPS) compared with Nonavoiders. Stress impaired pattern separation performance in Non-Avoider and Avoider rats compared with nonstressed Controls, but surprisingly, Avoiders exhibited partly preserved pattern separation performance and significantly lower ROS production compared with Non-Avoiders. Lower ROS production was associated with better OPS performance in Stressed rats, but ROS production was not associated with OPS performance in Controls. These results suggest a strong negative association between HPC ROS production and pattern separation after stress, and that stress effects on these outcome variables may be associated with avoidance of a stress-paired context.
Collapse
Affiliation(s)
- D. Parker Kelley
- Comparative Biomedical SciencesLouisiana State University School of Veterinary MedicineBaton RougeLouisianaUSA
- Department of PhysiologyLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
| | - Lucas Albrechet‐Souza
- Department of Cell Biology & AnatomyLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
- Alcohol & Drug Abuse Center of ExcellenceLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
| | - Shealan Cruise
- Department of PhysiologyLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
| | - Rajani Maiya
- Department of PhysiologyLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
| | - Aspasia Destouni
- Comparative Biomedical SciencesLouisiana State University School of Veterinary MedicineBaton RougeLouisianaUSA
| | | | - Alexander Duplooy
- Comparative Biomedical SciencesLouisiana State University School of Veterinary MedicineBaton RougeLouisianaUSA
| | - Meghan Hibicke
- Department of Pharmacology and Experimental TherapeuticsLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
| | - Charles Nichols
- Alcohol & Drug Abuse Center of ExcellenceLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
- Department of Pharmacology and Experimental TherapeuticsLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
| | - Prasad V. G. Katakam
- Department of PharmacologyTulane University School of MedicineNew OrleansLouisianaUSA
| | - Nicholas W. Gilpin
- Department of PhysiologyLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
- Alcohol & Drug Abuse Center of ExcellenceLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
- Neuroscience Center of ExcellenceLouisiana State University Health Sciences CenterNew OrleansLouisianaUSA
- Southeast Louisiana VA Healthcare System (SLVHCS)New OrleansLouisianaUSA
| | - Joseph Francis
- Comparative Biomedical SciencesLouisiana State University School of Veterinary MedicineBaton RougeLouisianaUSA
| |
Collapse
|
11
|
Dionisio-García DM, Genis-Mendoza AD, González-Castro TB, Tovilla-Zárate CA, Juarez-Rojop IE, López-Narváez ML, Hernández-Díaz Y, Nicolini H, Olvera-Hernández V. DNA Methylation of Genes Involved in the HPA Axis in Presence of Suicide Behavior: A Systematic Review. Brain Sci 2023; 13:brainsci13040584. [PMID: 37190549 DOI: 10.3390/brainsci13040584] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
DNA methylation in genes of the hypothalamic–pituitary–adrenal (HPA) axis has been associated with suicide behavior. Through a systematic review, we aimed to evaluate DNA methylation levels of the genes involved in the HPA pathway and their association with suicide behavior. A search of articles was performed using PubMed and Science Direct, EBSCO. The terms included were “DNA methylation”, “suicide”, “epigenetics”, “HPA axis” and “suicide behavior”. This systematic review was performed by the Preferred Reporting Items for Systematic Review and Meta-Analyses (PRISMA) statement. Six studies comprising 743 cases and 761 controls were included in this systematic review. The studies included individuals with suicide ideation, suicide attempts or completed suicide and childhood trauma, post-traumatic stress disorder (PTSD), or depression. One study reported hypermethylation in GR in childhood trauma, while two studies found hypermethylation of NR3C1 in childhood trauma and major depressive disorder (MDD). Only one study reported hypermethylation in BNDF in people with MDD. FKBP5 was found to be hypermethylated in people with MDD. Another study reported hypermethylation in CRHBP. SKA2 was reported to be hypermethylated in one study and another study found hypomethylated both in populations with PTSD. CRHR1 was found to be hypermethylated in people with MDD, and the last study found hypomethylation in CRH. Our result showed that patients with suicidal behavior showed a DNA methylation state of genes of the HPA axis in association with psychiatric comorbidity and with adverse events. Genes of the HPA axis could play a role in suicidal behavior associated with adverse events and pathologies. As a result, DNA methylation levels, proteins, and genes involved in the HPA axis could be considered for the search for biomarkers for the prevention of suicidal behavior in future studies.
Collapse
|
12
|
Zheng Y, Lunetta KL, Liu C, Katrinli S, Smith AK, Miller MW, Logue MW. An evaluation of the genome-wide false positive rates of common methods for identifying differentially methylated regions using illumina methylation arrays. Epigenetics 2022; 17:2241-2258. [PMID: 36047742 PMCID: PMC9665129 DOI: 10.1080/15592294.2022.2115600] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 07/28/2022] [Accepted: 08/17/2022] [Indexed: 11/03/2022] Open
Abstract
Differentially methylated regions (DMRs) are genomic regions with specific methylation patterns across multiple loci that are associated with a phenotype. We examined the genome-wide false positive (GFP) rates of five widely used DMR methods: comb-p, Bumphunter, DMRcate, mCSEA and coMethDMR using both Illumina HumanMethylation450 (450 K) and MethylationEPIC (EPIC) data and simulated continuous and dichotomous null phenotypes (i.e., generated independently of methylation data). coMethDMR provided well-controlled GFP rates (~5%) except when analysing skewed continuous phenotypes. DMRcate generally had well-controlled GFP rates when applied to 450 K data except for the skewed continuous phenotype and EPIC data only for the normally distributed continuous phenotype. GFP rates for mCSEA were at least 0.096 and comb-p yielded GFP rates above 0.34. Bumphunter had high GFP rates of at least 0.35 across conditions, reaching as high as 0.95. Analysis of the performance of these methods in specific regions of the genome found that regions with higher correlation across loci had higher regional false positive rates on average across methods. Based on the false positive rates, coMethDMR is the most recommended analysis method, and DMRcate had acceptable performance when analysing 450 K data. However, as both could display higher levels of FPs for skewed continuous distributions, a normalizing transformation of skewed continuous phenotypes is suggested. This study highlights the importance of genome-wide simulations when evaluating the performance of DMR-analysis methods.
Collapse
Affiliation(s)
- Yuanchao Zheng
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Kathryn L. Lunetta
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Chunyu Liu
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
| | - Seyma Katrinli
- Department of Gynecology and Obstetrics, Emory University, Atlanta, GA, USA
| | - Alicia K. Smith
- Department of Gynecology and Obstetrics, Emory University, Atlanta, GA, USA
- Emory University School of Medicine, Department of Psychiatry and Behavioral Sciences, Atlanta, GA, USA
| | - Mark W. Miller
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA
- Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
| | - Mark W. Logue
- National Center for PTSD, VA Boston Healthcare System, Boston, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
- Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA
- Biomedical Genetics, Boston University School of Medicine, Boston, MA, USA
| |
Collapse
|
13
|
Pfeiffer JR, van Rooij SJH, Mekawi Y, Fani N, Jovanovic T, Michopoulos V, Smith AK, Stevens JS, Uddin M. Blood-derived deoxyribonucleic acid methylation clusters associate with adverse social exposures and endophenotypes of stress-related psychiatric illness in a trauma-exposed cohort of women. Front Psychiatry 2022; 13:892302. [PMID: 36405926 PMCID: PMC9668877 DOI: 10.3389/fpsyt.2022.892302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 09/21/2022] [Indexed: 11/06/2022] Open
Abstract
Adverse social exposures (ASEs) such as low income, low educational attainment, and childhood/adult trauma exposure are associated with variability in brain region measurements of gray matter volume (GMV), surface area (SA), and cortical thickness (CT). These CNS morphometries are associated with stress-related psychiatric illnesses and represent endophenotypes of stress-related psychiatric illness development. Epigenetic mechanisms, such as 5-methyl-cytosine (5mC), may contribute to the biological embedding of the environment but are understudied and not well understood. How 5mC relates to CNS endophenotypes of psychiatric illness is also unclear. In 97 female, African American, trauma-exposed participants from the Grady Trauma Project, we examined the associations of childhood trauma burden (CTQ), adult trauma burden, low income, and low education with blood-derived 5mC clusters and variability in brain region measurements in the amygdala, hippocampus, and frontal cortex subregions. To elucidate whether peripheral 5mC indexes central nervous system (CNS) endophenotypes of psychiatric illness, we tested whether 73 brain/blood correlated 5mC clusters, defined by networks of correlated 5mC probes measured on Illumina's HumanMethylation Epic Beadchip, mediated the relationship between ASEs and brain measurements. CTQ was negatively associated with rostral middle frontal gyrus (RMFG) SA (β =-0.231, p = 0.041). Low income and low education were also associated with SA or CT in a number of brain regions. Seven 5mC clusters were associated with CTQ (pmin = 0.002), two with low education (pmin = 0.010), and three with low income (pmin = 0.007). Two clusters fully mediated the relation between CTQ and RMFG SA, accounting for 47 and 35% of variability, respectively. These clusters were enriched for probes falling in DNA regulatory regions, as well as signal transduction and immune signaling gene ontology functions. Methylome-network analyses showed enrichment of macrophage migration (p = 9 × 10-8), T cell receptor complex (p = 6 × 10-6), and chemokine-mediated signaling (p = 7 × 10-4) pathway enrichment in association with CTQ. Our results support prior work highlighting brain region variability associated with ASEs, while informing a peripheral inflammation-based epigenetic mechanism of biological embedding of such exposures. These findings could also serve to potentiate increased investigation of understudied populations at elevated risk for stress-related psychiatric illness development.
Collapse
Affiliation(s)
- John R. Pfeiffer
- Department of Psychology, University of Illinois at Urbana-Champaign, Urbana, IL, United States
- Carl R. Woese Institute for Genomic Biology, Urbana, IL, United States
| | - Sanne J. H. van Rooij
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States
| | - Yara Mekawi
- Department of Psychological and Brain Sciences, University of Louisville, Louisville, KY, United States
| | - Negar Fani
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States
| | - Tanja Jovanovic
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University, Detroit, MI, United States
| | - Vasiliki Michopoulos
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States
| | - Alicia K. Smith
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, GA, United States
| | - Jennifer S. Stevens
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, United States
| | - Monica Uddin
- Genomics Program, College of Public Health, University of South Florida, Tampa, FL, United States
| |
Collapse
|
14
|
Mirza S, Docherty AR, Bakian A, Coon H, Soares JC, Walss-Bass C, Fries GR. Genetics and epigenetics of self-injurious thoughts and behaviors: Systematic review of the suicide literature and methodological considerations. Am J Med Genet B Neuropsychiatr Genet 2022; 189:221-246. [PMID: 35975759 PMCID: PMC9900606 DOI: 10.1002/ajmg.b.32917] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/26/2022] [Accepted: 07/26/2022] [Indexed: 02/01/2023]
Abstract
Suicide is a multifaceted and poorly understood clinical outcome, and there is an urgent need to advance research on its phenomenology and etiology. Epidemiological studies have demonstrated that suicidal behavior is heritable, suggesting that genetic and epigenetic information may serve as biomarkers for suicide risk. Here we systematically review the literature on genetic and epigenetic alterations observed in phenotypes across the full range of self-injurious thoughts and behaviors (SITB). We included 577 studies focused on genome-wide and epigenome-wide associations, candidate genes (SNP and methylation), noncoding RNAs, and histones. Convergence of specific genes is limited across units of analysis, although pathway-based analyses do indicate nervous system development and function and immunity/inflammation as potential underlying mechanisms of SITB. We provide suggestions for future work on the genetic and epigenetic correlates of SITB with a specific focus on measurement issues.
Collapse
Affiliation(s)
- Salahudeen Mirza
- Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, (UTHealth), Houston, Texas, USA,Institute of Child Development, University of Minnesota, Minneapolis, Minnesota, USA
| | - Anna R. Docherty
- Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, Utah, USA,Huntsman Mental Health Institute, Salt Lake City, Utah, USA,Department of Psychiatry, The Virginia Commonwealth University, Richmond, Virginia, USA
| | - Amanda Bakian
- Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, Utah, USA,Huntsman Mental Health Institute, Salt Lake City, Utah, USA
| | - Hilary Coon
- Department of Psychiatry, University of Utah School of Medicine, Salt Lake City, Utah, USA,Huntsman Mental Health Institute, Salt Lake City, Utah, USA
| | - Jair C. Soares
- Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, (UTHealth), Houston, Texas, USA,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas, USA
| | - Consuelo Walss-Bass
- Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, (UTHealth), Houston, Texas, USA,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas, USA
| | - Gabriel R. Fries
- Faillace Department of Psychiatry and Behavioral Sciences, McGovern Medical School, University of Texas Health Science Center at Houston, (UTHealth), Houston, Texas, USA,Neuroscience Graduate Program, The University of Texas MD Anderson Cancer Center UTHealth Graduate School of Biomedical Sciences, Houston, Texas, USA,Center for Precision Health, School of Biomedical Informatics, The University of Texas Health Science Center at Houston (UTHealth), Houston, Texas, USA
| |
Collapse
|
15
|
Alvarez-Subiela X, Castellano-Tejedor C, Villar-Cabeza F, Vila-Grifoll M, Palao-Vidal D. Family Factors Related to Suicidal Behavior in Adolescents. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:9892. [PMID: 36011528 PMCID: PMC9408664 DOI: 10.3390/ijerph19169892] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Objective: This research aims to investigate what type of family patterns (specifically attachment, bonding and family functioning) and stressful life events can trigger or protect adolescents from developing suicidal behavior. Methods: For these purposes, a case-control study (adolescents with suicidal behavior vs. paired adolescents with no suicidal behavior) was conducted with one hundred 12 to 17-year-old adolescents (50 controls, 50 cases, 74% females), assessed between 2018 and 2020. Results: Negligent (p < 0.001) or affection-less control bonding (p < 0.001), insecure attachment (p = 0.001) and stressful life events (p < 0.001) revealed to be significant risk factors for suicidal behavior. On the contrary, parents’ care (p < 0.001) and security (p < 0.001) were revealed as protective factors for suicidal behavior. Conclusions: Considering these results, family interventions and improving coping skills seem to be two essential targets for any suicide prevention intervention in adolescents.
Collapse
Affiliation(s)
- Xavier Alvarez-Subiela
- Suicide Conduct Unit, Psychiatry and Psychology Department, Sant Joan de Déu Hospital, 08950 Esplugues del Llobregat, Spain
- Doctoral Program in Psychiatry, Department of Psychiatry and Forensic Medicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain
| | - Carmina Castellano-Tejedor
- Research Group on Stress and Health (GIES), Department of Basic Psychology, Faculty of Psychology, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain
- RE-FIT Research Group, Parc Sanitari Pere Virgili & Vall d’Hebron Institute of Research, 08023 Barcelona, Spain
| | - Francisco Villar-Cabeza
- Suicide Conduct Unit, Psychiatry and Psychology Department, Sant Joan de Déu Hospital, 08950 Esplugues del Llobregat, Spain
| | - Mar Vila-Grifoll
- Suicide Conduct Unit, Psychiatry and Psychology Department, Sant Joan de Déu Hospital, 08950 Esplugues del Llobregat, Spain
| | - Diego Palao-Vidal
- Doctoral Program in Psychiatry, Department of Psychiatry and Forensic Medicine, Autonomous University of Barcelona, Bellaterra, 08193 Barcelona, Spain
- Centro de Investigación en Red de Salud Mental (CIBERSAM), Carlos III Health Institute, 28029 Madrid, Spain
- Unitat Mixta de Neurociència Traslacional I3PT-INc-UAB, Institut d’Investigació i Innovació Parc Taulí (I3PT), Sabadell, 08208 Barcelona, Spain
- Department of Mental Health, University Hospital Parc Taulí, Sabadell, 08208 Barcelona, Spain
| |
Collapse
|
16
|
Alameda L, Trotta G, Quigley H, Rodriguez V, Gadelrab R, Dwir D, Dempster E, Wong CCY, Forti MD. Can epigenetics shine a light on the biological pathways underlying major mental disorders? Psychol Med 2022; 52:1645-1665. [PMID: 35193719 PMCID: PMC9280283 DOI: 10.1017/s0033291721005559] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 11/30/2021] [Accepted: 12/29/2021] [Indexed: 12/27/2022]
Abstract
A significant proportion of the global burden of disease can be attributed to mental illness. Despite important advances in identifying risk factors for mental health conditions, the biological processing underlying causal pathways to disease onset remain poorly understood. This represents a limitation to implement effective prevention and the development of novel pharmacological treatments. Epigenetic mechanisms have emerged as mediators of environmental and genetic risk factors which might play a role in disease onset, including childhood adversity (CA) and cannabis use (CU). Particularly, human research exploring DNA methylation has provided new and promising insights into the role of biological pathways implicated in the aetio-pathogenesis of psychiatric conditions, including: monoaminergic (Serotonin and Dopamine), GABAergic, glutamatergic, neurogenesis, inflammatory and immune response and oxidative stress. While these epigenetic changes have been often studied as disease-specific, similarly to the investigation of environmental risk factors, they are often transdiagnostic. Therefore, we aim to review the existing literature on DNA methylation from human studies of psychiatric diseases (i) to identify epigenetic modifications mapping onto biological pathways either transdiagnostically or specifically related to psychiatric diseases such as Eating Disorders, Post-traumatic Stress Disorder, Bipolar and Psychotic Disorder, Depression, Autism Spectrum Disorder and Anxiety Disorder, and (ii) to investigate a convergence between some of these epigenetic modifications and the exposure to known risk factors for psychiatric disorders such as CA and CU, as well as to other epigenetic confounders in psychiatry research.
Collapse
Affiliation(s)
- Luis Alameda
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
- Departamento de Psiquiatría, Centro Investigación Biomedica en Red de Salud Mental (CIBERSAM), Instituto de Biomedicina de Sevilla (IBIS), Hospital Universitario Virgen del Rocío, Universidad de Sevilla, Sevilla, Spain
| | - Giulia Trotta
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, London, UK
| | - Harriet Quigley
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Victoria Rodriguez
- Department of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Romayne Gadelrab
- Centre for Affective Disorders, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK
| | - Daniella Dwir
- Department of Psychiatry, Center for Psychiatric Neuroscience, Lausanne University Hospital (CHUV), Lausanne, Switzerland
| | - Emma Dempster
- University of Exeter Medical School, University of Exeter, Barrack Road, Exeter, UK
| | - Chloe C. Y. Wong
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, London, UK
| | - Marta Di Forti
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, King's College London, London, UK
- South London and Maudsley NHS Foundation Trust, London, UK
| |
Collapse
|
17
|
Wang KZ, Chaudhary Z, Qian J, Adanty C, Graff-Guerrero A, Gerretsen P, Zai CC, De Luca V. Differential Methylation Analysis of Suicidal Ideation Severity in Schizophrenia with the Illumina MethylationEPIC Array. Healthcare (Basel) 2022; 10:809. [PMID: 35627945 PMCID: PMC9141768 DOI: 10.3390/healthcare10050809] [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] [Received: 04/05/2022] [Accepted: 04/22/2022] [Indexed: 02/04/2023] Open
Abstract
There is a multitude of factors that makes difficult to identify those at risk for suicide, especially among schizophrenia patients. Suicide cannot be explained by genetics alone, therefore epigenetic mechanisms including DNA methylation are thought to play a role. DNA methylation could be a valuable tool in helping predict those at-risk individuals. This cross-sectional study comprised 112 subjects diagnosed with schizophrenia spectrum disorders, and were grouped according to the current suicidal ideation severity. DNA methylation across the genome was measured with the Infinium® MethylationEPIC BeadChip. We utilized the dmpFinder and bumphunter functions within the Bioconductor minfi package to identify differentially methylated positions (DMPs) and differentially methylated regions (DMRs), respectively. Following quality control, we removed one sample from the analysis and reported the most significant DMPs and DMRs associated with suicidal ideation severity. All positions and regions identified in this analysis were only found to have suggestive levels of significance at the genome-wide level. The present study was one of the first to investigate genome-wide methylation and suicidal ideation severity. While there were many strengths of our study, including investigating both differentially methylated positions and regions, further larger-scale studies are necessary to replicate, support, and validate our findings presented here.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Vincenzo De Luca
- Department of Psychiatry, University of Toronto, Toronto, ON M5T 1R8, Canada; (K.Z.W.); (Z.C.); (J.Q.); (C.A.); (A.G.-G.); (P.G.); (C.C.Z.)
| |
Collapse
|
18
|
Hernández-Díaz Y, Genis-Mendoza AD, González-Castro TB, Tovilla-Zárate CA, Juárez-Rojop IE, López-Narváez ML, Nicolini H. Association and Genetic Expression between Genes Involved in HPA Axis and Suicide Behavior: A Systematic Review. Genes (Basel) 2021; 12:1608. [PMID: 34681002 PMCID: PMC8536196 DOI: 10.3390/genes12101608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 10/02/2021] [Accepted: 10/06/2021] [Indexed: 01/17/2023] Open
Abstract
BACKGROUND Suicide behavior (SB) has been highly associated with the response to stress and the hypothalamic-pituitary-adrenal (HPA) axis. The aim of this study was to summarize the results obtained in genetic studies that analyzed the HPA axis-stress pathway and SB through a systematic review. METHODS We performed an online search in PubMed, EBSCO, Web of Science, Scopus, and PsycoInfo databases up to May 2021. We followed the PRISMA guidelines for systematic reviews. We included case-control and expression studies that provided data on mRNA expression and single-nucleotide polymorphisms of genes associated with SB. RESULTS A total of 21,926 individuals participated across 41 studies (not repeats); 34 studies provided data on single-nucleotide polymorphisms in 21,284 participants and 11 studies reported data on mRNA expression in 1034 participants. Ten genes were identified: FKBP5, CRH, CRHBP, CRHR1, CRHR2, NR3C1, NR3C2, SKA2, MC2R, and POMC. CONCLUSIONS Our findings suggest that key stress pathway genes are significantly associated with SB and show potential as biomarkers for SB.
Collapse
Affiliation(s)
- Yazmín Hernández-Díaz
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez 86205, Tabasco, Mexico; (Y.H.-D.); (T.B.G.-C.)
| | - Alma Delia Genis-Mendoza
- Laboratorio de Genómica de Enfermedades Psiquiátricas y Neurodegenerativas, Instituto Nacional de Medicina Genómica, Ciudad de México 14610, Mexico;
| | - Thelma Beatriz González-Castro
- División Académica Multidisciplinaria de Jalpa de Méndez, Universidad Juárez Autónoma de Tabasco, Jalpa de Méndez 86205, Tabasco, Mexico; (Y.H.-D.); (T.B.G.-C.)
| | - Carlos Alfonso Tovilla-Zárate
- División Académica Multidisciplinaria de Comalcalco, Universidad Juárez Autónoma de Tabasco, Comalcalco 86650, Tabasco, Mexico
| | - Isela Esther Juárez-Rojop
- División Académica de Ciencias de la Salud, Universidad Juárez Autónoma de Tabasco, Villahermosa 86150, Tabasco, Mexico;
| | | | - Humberto Nicolini
- Laboratorio de Genómica de Enfermedades Psiquiátricas y Neurodegenerativas, Instituto Nacional de Medicina Genómica, Ciudad de México 14610, Mexico;
| |
Collapse
|
19
|
Ramos-Rosales DF, Vazquez-Alaniz F, Urtiz-Estrada N, Ramirez-Valles EG, Mendez-Hernádez EM, Salas-Leal AC, Barraza-Salas M. Epigenetic marks in suicide: a review. Psychiatr Genet 2021; 31:145-161. [PMID: 34412082 DOI: 10.1097/ypg.0000000000000297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Suicide is a complex phenomenon and a global public health problem that involves several biological factors that could contribute to the pathophysiology of suicide. There is evidence that epigenetic factors influence some psychiatric disorders, suggesting a predisposition to suicide or suicidal behavior. Here, we review studies of molecular mechanisms of suicide in an epigenetic perspective in the postmortem brain of suicide completers and peripheral blood cells of suicide attempters. Besides, we include studies of gene-specific DNA methylation, epigenome-wide association, histone modification, and interfering RNAs as epigenetic factors. This review provides an overview of the epigenetic mechanisms described in different biological systems related to suicide, contributing to an understanding of the genetic regulation in suicide. We conclude that epigenetic marks are potential biomarkers in suicide, and they could become attractive therapeutic targets due to their reversibility and importance in regulating gene expression.
Collapse
Affiliation(s)
| | - Fernando Vazquez-Alaniz
- Facultad de Ciencias Químicas, Universidad Juárez del Estado de Durango
- Hospital General 450. Servicios de Salud de Durango
| | | | | | - Edna M Mendez-Hernádez
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango, Durango, México
| | - Alma C Salas-Leal
- Instituto de Investigación Científica, Universidad Juárez del Estado de Durango, Durango, México
| | | |
Collapse
|
20
|
Chitrala KN, Nagarkatti P, Nagarkatti M. Computational analysis of deleterious single nucleotide polymorphisms in catechol O-Methyltransferase conferring risk to post-traumatic stress disorder. J Psychiatr Res 2021; 138:207-218. [PMID: 33865170 PMCID: PMC8969201 DOI: 10.1016/j.jpsychires.2021.03.048] [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: 01/02/2021] [Revised: 03/18/2021] [Accepted: 03/24/2021] [Indexed: 10/21/2022]
Abstract
Post-traumatic stress disorder (PTSD) is one of the prevalent neurological disorder which is drawing increased attention over the past few decades. Major risk factors for PTSD can be categorized into environmental and genetic factors. Among the genetic risk factors, polymorphisms in the catechol-O-methyltransferase (COMT) gene is known to be associated with the risk for PTSD. In the present study, we analysed the impact of deleterious single nucleotide polymorphisms (SNPs) in the COMT gene conferring risk to PTSD using computational based approaches followed by molecular dynamic simulations. The data on COMT gene associated with PTSD were collected from several databases including Online Mendelian Inheritance in Man (OMIM) search. Datasets related to SNP were downloaded from the dbSNP database. To study the structural and dynamic effects of COMT wild type and mutant forms, we performed molecular dynamics simulations (MD simulations) at a time scale of 300 ns. Results from screening the SNPs using the computational tools SIFT and Polyphen-2 demonstrated that the SNP rs4680 (V158M) in COMT has a deleterious effect with phenotype in PTSD. Results from the MD simulations showed that there is some major fluctuations in the structural features including root mean square deviation (RMSD), radius of gyration (Rg), root mean square fluctuation (RMSF) and secondary structural elements including α-helices, sheets and turns between wild-type (WT) and mutant forms of COMT protein. In conclusion, our study provides novel insights into the deleterious effects and impact of V158M mutation on COMT protein structure which plays a key role in PTSD.
Collapse
Affiliation(s)
- Kumaraswamy Naidu Chitrala
- Dept. of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, 29208, USA; Fels Cancer Institute for Personalized Medicine, Lewis Katz School of Medicine, Temple University, Philadelphia, PA, 19140, USA.
| | - Prakash Nagarkatti
- Dept. of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, 29208, USA
| | - Mitzi Nagarkatti
- Dept. of Pathology, Microbiology and Immunology, University of South Carolina School of Medicine, Columbia, SC, 29208, USA
| |
Collapse
|
21
|
Pfeiffer JR, Bustamante AC, Kim GS, Armstrong D, Knodt AR, Koenen KC, Hariri AR, Uddin M. Associations between childhood family emotional health, fronto-limbic grey matter volume, and saliva 5mC in young adulthood. Clin Epigenetics 2021; 13:68. [PMID: 33789736 PMCID: PMC8010979 DOI: 10.1186/s13148-021-01056-y] [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] [Received: 10/08/2020] [Accepted: 03/22/2021] [Indexed: 11/13/2022] Open
Abstract
Background Poor family emotional health (FEH) during childhood is prevalent and impactful, and likely confers similar neurodevelopmental risks as other adverse social environments. Pointed FEH study efforts are underdeveloped, and the mechanisms by which poor FEH are biologically embedded are unclear. The current exploratory study examined whether variability in 5-methyl-cytosine (5mC) and fronto-limbic grey matter volume may represent pathways through which FEH may become biologically embedded. Results In 98 university students aged 18–22 years, retrospective self-reported childhood FEH was associated with right hemisphere hippocampus (b = 10.4, p = 0.005), left hemisphere amygdala (b = 5.3, p = 0.009), and right hemisphere amygdala (b = 5.8, p = 0.016) volumes. After pre-processing and filtering to 5mC probes correlated between saliva and brain, analyses showed that childhood FEH was associated with 49 5mC principal components (module eigengenes; MEs) (prange = 3 × 10–6 to 0.047). Saliva-derived 5mC MEs partially mediated the association between FEH and right hippocampal volume (Burlywood ME indirect effect b = − 111, p = 0.014), and fully mediated the FEH and right amygdala volume relationship (Pink4 ME indirect effect b = − 48, p = 0.026). Modules were enriched with probes falling in genes with immune, central nervous system (CNS), cellular development/differentiation, and metabolic functions. Conclusions Findings extend work highlighting neurodevelopmental variability associated with adverse social environment exposure during childhood by specifically implicating poor FEH, while informing a mechanism of biological embedding. FEH-associated epigenetic signatures could function as proxies of altered fronto-limbic grey matter volume associated with poor childhood FEH and inform further investigation into primarily affected tissues such as endocrine, immune, and CNS cell types. Supplementary Information The online version contains supplementary material available at 10.1186/s13148-021-01056-y.
Collapse
Affiliation(s)
- J R Pfeiffer
- Department of Psychology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Carl R. Woese Institute for Genomic Biology, Urbana, IL, USA
| | - Angela C Bustamante
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, MI, USA
| | - Grace S Kim
- Medical Scholars Program, University of Illinois College of Medicine, Urbana, IL, USA
| | - Don Armstrong
- Carl R. Woese Institute for Genomic Biology, Urbana, IL, USA
| | - Annchen R Knodt
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA.,Laboratory of NeuroGenetics, Duke University, Durham, NC, USA
| | - Karestan C Koenen
- Department of Epidemiology, Harvard School of Public Health, Boston, MA, USA
| | - Ahmad R Hariri
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA.,Laboratory of NeuroGenetics, Duke University, Durham, NC, USA
| | - Monica Uddin
- Genomics Program, College of Public Health, University of South Florida, 3720 Spectrum Blvd., Suite 304, Tampa, FL, USA.
| |
Collapse
|
22
|
Silva RC, Maffioletti E, Gennarelli M, Baune BT, Minelli A. Biological correlates of early life stressful events in major depressive disorder. Psychoneuroendocrinology 2021; 125:105103. [PMID: 33360031 DOI: 10.1016/j.psyneuen.2020.105103] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/29/2020] [Accepted: 12/01/2020] [Indexed: 12/14/2022]
Abstract
Major depressive disorder (MDD) is the most common psychiatric disorder and responds for important psychosocial consequences. Stressful life events, especially early life stress (ELS), contribute to an increased probability to develop MDD, leading in particular to severe and chronic manifestation and unfavorable treatment outcome. The association between ELS and MDD seems to have biological bases, consisting in dysregulations occurring at different levels. The aim of this narrative review is to propose an overview of the literature ranging from genetic, epigenetic, expression and protein to neuroimaging correlates underlying this relationship. A search on Pubmed of studies assessing biological correlates of ELS in MDD development, focusing on human studies conducted in both peripheral and brain tissues, was performed. Evidence indicated that the hypothalamic-pituitary-adrenal (HPA) axis and the serotonergic, dopaminergic, neurotrophin and oxytocin systems might play a role in the mediation between ELS and MDD. The most consistent results were found for genetic and epigenetic studies and indicated a joint involvement of the systems mentioned. Expression studies are less numerous and point to an involvement of stress-related systems. Concerning protein studies, the main mediators are markers related to the inflammatory and immune systems. Neuroimaging studies aiming at evaluating brain alterations connecting ELS and MDD in relation to biomarkers indicated the hippocampus, the amygdala and the frontal cortex as important anatomical mediators. These findings can build the bases for future research and clinical interventions; indeed, the clarification of biological mechanisms mediating the relationship between ELS and MDD can lead to new and individualized preventive and therapeutic possibilities.
Collapse
Affiliation(s)
- Rosana Carvalho Silva
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy
| | - Elisabetta Maffioletti
- Genetics Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Massimo Gennarelli
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy; Genetics Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy
| | - Bernhard T Baune
- Department of Psychiatry, University of Münster, Münster, Germany; Department of Psychiatry, Melbourne Medical School, The University of Melbourne, Melbourne, Australia; The Florey Institute of Neuroscience and Mental Health, The University of Melbourne, Parkville, VIC, Australia
| | - Alessandra Minelli
- Department of Molecular and Translational Medicine, University of Brescia, Brescia, Italy; Genetics Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli, Brescia, Italy.
| |
Collapse
|
23
|
Marie-Claire C, Lejeune FX, Mundwiller E, Ulveling D, Moszer I, Bellivier F, Etain B. A DNA methylation signature discriminates between excellent and non-response to lithium in patients with bipolar disorder type 1. Sci Rep 2020; 10:12239. [PMID: 32699220 PMCID: PMC7376060 DOI: 10.1038/s41598-020-69073-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 07/03/2020] [Indexed: 12/15/2022] Open
Abstract
Lithium (Li) is the cornerstone maintenance treatment for bipolar disorders (BD), but response rates are highly variable. To date, no clinical or biological marker is available to reliably define eligibility criteria for a maintenance treatment with Li. We examined whether the prophylactic response to Li (assessed retrospectively) is associated with distinct blood DNA methylation profiles. Bisulfite-treated total blood DNA samples from individuals with BD type 1 (15 excellent-responders (LiERs) versus 11 non-responders (LiNRs)) were used for targeted enrichment of CpG rich genomic regions followed by high-resolution next-generation sequencing to identify differentially methylated regions (DMRs). After controlling for potential confounders we identified 111 DMRs that significantly differ between LiERs and LiNRs with a significant enrichment in neuronal cell components. Logistic regression and receiver operating curves identified a combination of 7 DMRs with a good discriminatory power for response to Li (Area Under the Curve 0.806). Annotated genes associated with these DMRs include Eukaryotic Translation Initiation Factor 2B Subunit Epsilon (EIF2B5), Von Willebrand Factor A Domain Containing 5B2 (VWA5B2), Ral GTPase Activating Protein Catalytic Alpha Subunit 1 (RALGAPA1). Although preliminary and deserving replication, these results suggest that biomarkers of response to Li may be identified through peripheral epigenetic measures.
Collapse
Affiliation(s)
- C Marie-Claire
- Optimisation thérapeutique en Neurospsychopharmacologie, INSERM U1144, Université de Paris, Paris, France.
| | - F X Lejeune
- Bioinformatics and Biostatistics Core Facility iCONICS, Inserm U 1127, CNRS UMR 7225, Sorbonne Université UMR S 1127, Institut du Cerveau Et de La Moelle Épinière, Paris, France
| | - E Mundwiller
- IGenSeq, Institut du Cerveau Et de La Moelle Épinière, Paris, France
| | - D Ulveling
- Bioinformatics and Biostatistics Core Facility iCONICS, Inserm U 1127, CNRS UMR 7225, Sorbonne Université UMR S 1127, Institut du Cerveau Et de La Moelle Épinière, Paris, France
| | - I Moszer
- Bioinformatics and Biostatistics Core Facility iCONICS, Inserm U 1127, CNRS UMR 7225, Sorbonne Université UMR S 1127, Institut du Cerveau Et de La Moelle Épinière, Paris, France
| | - F Bellivier
- Optimisation thérapeutique en Neurospsychopharmacologie, INSERM U1144, Université de Paris, Paris, France.,AP-HP, GH Saint-Louis-Lariboisière-F. Widal, Pole de Psychiatrie Et de Médecine Addictologique, Paris, France.,Fondation FondaMental, Créteil, France.,Faculté de Médecine, Université de Paris, Paris, France
| | - B Etain
- Optimisation thérapeutique en Neurospsychopharmacologie, INSERM U1144, Université de Paris, Paris, France.,AP-HP, GH Saint-Louis-Lariboisière-F. Widal, Pole de Psychiatrie Et de Médecine Addictologique, Paris, France.,Fondation FondaMental, Créteil, France.,Faculté de Médecine, Université de Paris, Paris, France
| |
Collapse
|
24
|
Mehta D, Miller O, Bruenig D, David G, Shakespeare-Finch J. A Systematic Review of DNA Methylation and Gene Expression Studies in Posttraumatic Stress Disorder, Posttraumatic Growth, and Resilience. J Trauma Stress 2020; 33:171-180. [PMID: 31951051 DOI: 10.1002/jts.22472] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 06/25/2019] [Accepted: 07/22/2019] [Indexed: 12/13/2022]
Abstract
Most people will experience a traumatic event within their lifetime. One commonly recognized response to trauma exposure is posttraumatic stress disorder (PTSD). The biological underpinnings of PTSD, including epigenetic mechanisms of DNA methylation and gene expression, have been studied intensively. However, psychological posttrauma responses vary widely and can include positive outcomes, such as posttraumatic growth (PTG) and, more commonly, resilience. The aim of this systematic review was to summarize the current DNA methylation and gene expression data with respect to three potential posttrauma responses: PTSD, PTG, and resilience. A literature search identified 486 studies, 51 of which were deemed eligible for inclusion (total N = 10,633). All included studies examined PTSD and consistently implicated DNA methylation and gene expression changes in hypothalamic-pituitary-adrenal axis and inflammatory genes. Ten studies acknowledged resilience as a posttrauma response, but only two studies examined epigenetics and gene expression using a scale to measure resilience. Low resilience was associated with gene expression patterns in immune and dopamine genes, and high resilience was associated with a blunted inflammatory response. No studies examined epigenetic or gene expression changes associated with PTG. These findings highlight a focus on pathogenic research, which has failed to adequately acknowledge and measure positive posttrauma outcomes of PTG and resilience. Future research should examine DNA methylation and gene expression changes associated with PTG and resilience in addition to PTSD in order to gain a more comprehensive picture of an individual's well-being following exposure to trauma.
Collapse
Affiliation(s)
- Divya Mehta
- School of Psychology and Counselling and Institute of Health and Biomedical Innovation, Faculty of Health, Queensland University of Technology, Kelvin Grove, Australia
| | - Olivia Miller
- School of Psychology and Counselling and Institute of Health and Biomedical Innovation, Faculty of Health, Queensland University of Technology, Kelvin Grove, Australia
| | - Dagmar Bruenig
- School of Psychology and Counselling and Institute of Health and Biomedical Innovation, Faculty of Health, Queensland University of Technology, Kelvin Grove, Australia
| | - Georgina David
- School of Psychology and Counselling and Institute of Health and Biomedical Innovation, Faculty of Health, Queensland University of Technology, Kelvin Grove, Australia
| | - Jane Shakespeare-Finch
- School of Psychology and Counselling and Institute of Health and Biomedical Innovation, Faculty of Health, Queensland University of Technology, Kelvin Grove, Australia
| |
Collapse
|
25
|
Cheung S, Woo J, Maes MS, Zai CC. Suicide epigenetics, a review of recent progress. J Affect Disord 2020; 265:423-438. [PMID: 32090769 DOI: 10.1016/j.jad.2020.01.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 11/17/2019] [Accepted: 01/11/2020] [Indexed: 02/08/2023]
Abstract
BACKGROUND Suicide results in over 800,000 deaths every year, making it a major public health concern worldwide. It is highly complex, with genetic and environmental influences. Epigenetic mechanisms, including DNA methylation, miRNA, and histone modifications, could explain the complex interplay of environmental risk factors with genetic risk factors in the emergence of suicidal behavior. METHODS Here, we review the literature on suicide epigenetics over the past 10 years. RESULTS There has been significant progress in the field of suicide epigenetics, with emerging findings in the brain-derived neurotrophic factor and hypothalamic-pituitary-adrenal axis genes. LIMITATIONS Studying patient subgroups is needed in order to extract more comparable and reproducible epigenetic findings in suicide. CONCLUSIONS It is crucial to consider suicidal patients or suicide victims' distal and proximal past history e.g., early-life adversity and psychiatric disorder in epigenetic studies of suicidality.
Collapse
Affiliation(s)
- Serina Cheung
- Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Canada
| | - Julia Woo
- Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Canada; Faculty of Medicine, University of Toronto, Canada
| | - Miriam S Maes
- Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Canada
| | - Clement C Zai
- Neurogenetics Section, Tanenbaum Centre for Pharmacogenetics, Molecular Brain Science, Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Canada; Division of Brain and Therapeutics, Department of Psychiatry, University of Toronto, Canada; Institute of Medical Science, University of Toronto, Canada; Laboratory Medicine and Pathobiology, University of Toronto, Canada; Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA.
| |
Collapse
|
26
|
Policicchio S, Washer S, Viana J, Iatrou A, Burrage J, Hannon E, Turecki G, Kaminsky Z, Mill J, Dempster EL, Murphy TM. Genome-wide DNA methylation meta-analysis in the brains of suicide completers. Transl Psychiatry 2020; 10:69. [PMID: 32075955 PMCID: PMC7031296 DOI: 10.1038/s41398-020-0752-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/09/2020] [Accepted: 01/30/2020] [Indexed: 02/06/2023] Open
Abstract
Suicide is the second leading cause of death globally among young people representing a significant global health burden. Although the molecular correlates of suicide remains poorly understood, it has been hypothesised that epigenomic processes may play a role. The objective of this study was to identify suicide-associated DNA methylation changes in the human brain by utilising previously published and unpublished methylomic datasets. We analysed prefrontal cortex (PFC, n = 211) and cerebellum (CER, n = 114) DNA methylation profiles from suicide completers and non-psychiatric, sudden-death controls, meta-analysing data from independent cohorts for each brain region separately. We report evidence for altered DNA methylation at several genetic loci in suicide cases compared to controls in both brain regions with suicide-associated differentially methylated positions enriched among functional pathways relevant to psychiatric phenotypes and suicidality, including nervous system development (PFC) and regulation of long-term synaptic depression (CER). In addition, we examined the functional consequences of variable DNA methylation within a PFC suicide-associated differentially methylated region (PSORS1C3 DMR) using a dual luciferase assay and examined expression of nearby genes. DNA methylation within this region was associated with decreased expression of firefly luciferase but was not associated with expression of nearby genes, PSORS1C3 and POU5F1. Our data suggest that suicide is associated with DNA methylation, offering novel insights into the molecular pathology associated with suicidality.
Collapse
Affiliation(s)
- Stefania Policicchio
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Sam Washer
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Joana Viana
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Artemis Iatrou
- grid.240684.c0000 0001 0705 3621Rush Alzheimer’s Neurodisease Center, Rush University Medical Center, 600 South Paulina Street, Chicago, IL 60612 USA
| | - Joe Burrage
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Eilis Hannon
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Gustavo Turecki
- grid.14709.3b0000 0004 1936 8649Douglas Institute, Department of Psychiatry, McGill University, Verdun, QC H4H 1R3 Canada
| | - Zachary Kaminsky
- grid.21107.350000 0001 2171 9311Department of Psychiatry, School of Medicine, Johns Hopkins University, Baltimore, MD USA ,grid.21107.350000 0001 2171 9311Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD USA
| | - Jonathan Mill
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Emma L. Dempster
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Therese M. Murphy
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, University of Exeter, Exeter, UK ,grid.497880.aSchool of Biological and Health Sciences, Technological University Dublin, City Campus, Dublin, 2 Ireland
| |
Collapse
|
27
|
Abstract
Suicidal behaviors have been associated with both heritable genetic variables and environmental risk factors. Epigenetic processes, such as DNA methylation, have important roles in mediating the effects of the environment on behavior. Dysregulation of these processes has been observed in many psychiatric disorders, and evidence suggests that they may also be involved in suicidal behaviors. Herein, we have summarized candidate gene and epigenome-wide studies which have investigated DNA methylation in relation to suicidal behaviors, as well as discussed some of the limitations of the field to date.
Collapse
Affiliation(s)
- Laura M Fiori
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, McGill University, Verdun, QC, Canada
| | - Gustavo Turecki
- McGill Group for Suicide Studies, Douglas Mental Health University Institute, McGill University, Verdun, QC, Canada.
| |
Collapse
|
28
|
Calati R, Nemeroff CB, Lopez-Castroman J, Cohen LJ, Galynker I. Candidate Biomarkers of Suicide Crisis Syndrome: What to Test Next? A Concept Paper. Int J Neuropsychopharmacol 2019; 23:192-205. [PMID: 31781761 PMCID: PMC7171927 DOI: 10.1093/ijnp/pyz063] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Revised: 11/25/2019] [Accepted: 11/27/2019] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND There has been increasing interest in both suicide-specific diagnoses within the psychiatric nomenclature and related biomarkers. Because the Suicide Crisis Syndrome-an emotional crescendo of several interrelated symptoms-seems to be promising for the identification of individuals at risk of suicide, the aim of the present paper is to review the putative biological underpinnings of the Suicide Crisis Syndrome symptoms (entrapment, affective disturbance, loss of cognitive control, hyperarousal, social withdrawal). METHODS A PubMed literature search was performed to identify studies reporting a link between each of the 5 Suicide Crisis Syndrome symptoms and biomarkers previously reported to be associated with suicidal outcomes. RESULTS Disturbances in the hypothalamic-pituitary-adrenal axis, with dysregulated corticotropin-releasing hormone and cortisol levels, may be linked to a sense of entrapment. Affective disturbance is likely mediated by alterations in dopaminergic circuits involved in reward and antireward systems as well as endogenous opioids. Loss of cognitive control is linked to altered neurocognitive function in the areas of executive function, attention, and decision-making. Hyperarousal is linked to autonomic dysregulation, which may be characterized by a reduction in both heart rate variability and electrodermal activity. Social withdrawal has been associated with oxytocin availability. There is also evidence that inflammatory processes may contribute to individual Suicide Crisis Syndrome symptoms. CONCLUSION The Suicide Crisis Syndrome is a complex syndrome that is likely the consequence of distinct changes in interconnected neural, neuroendocrine, and autonomic systems. Available clinical and research data allow for development of empirically testable hypotheses and experimental paradigms to scrutinize the biological substrates of the Suicide Crisis Syndrome.
Collapse
Affiliation(s)
- Raffaella Calati
- Department of Psychiatry, Mount Sinai Beth Israel, New York, New York,Icahn School of Medicine at Mount Sinai, New York, New York,Department of Psychology, University of Milan-Bicocca, Milan, Italy,Department of Adult Psychiatry, Nîmes University Hospital, Nîmes, France,Correspondence: Raffaella Calati, PsyD, PhD, Department of Psychology, University of Milan-Bicocca, Piazza dell’Ateneo Nuovo 1, 20126, Milan, Italy ()
| | - Charles B Nemeroff
- Department of Psychiatry, University of Texas Dell Medical School, Austin, Texas
| | - Jorge Lopez-Castroman
- Department of Adult Psychiatry, Nîmes University Hospital, Nîmes, France,INSERM, University of Montpellier, Neuropsychiatry: Epidemiological and Clinical Research, Montpellier, France
| | - Lisa J Cohen
- Department of Psychiatry, Mount Sinai Beth Israel, New York, New York,Icahn School of Medicine at Mount Sinai, New York, New York
| | - Igor Galynker
- Department of Psychiatry, Mount Sinai Beth Israel, New York, New York,Icahn School of Medicine at Mount Sinai, New York, New York
| |
Collapse
|
29
|
Mustafin RN, Kazantseva AV, Enikeeva RF, Davydova YD, Malykh SB, Viktorov VV, Khusnutdinova EK. Epigenetics of suicidal behavior. Vavilovskii Zhurnal Genet Selektsii 2019. [DOI: 10.18699/vj19.531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Suicide is the second leading cause of death among young people and therefore being a serious global problem worldwide. The study of genetic and epigenetic factors in the development of suicidal behavior plays an important role in the development of advanced methods of diagnosis and treatment of this pathology. The role of hereditary factors in the development of suicidal behavior is estimated at 30–55 %, with a pronounced comorbidity with other psychopathologies. The study of genetic liability to suicidal behavior is based on molecular-genetic methods including association and linkage analyses, chip gene expression arrays, and genome-wide association studies. Published data identified multiple genes including those involved in the functioning of serotonergic (SLC6A4, TPH, 5-HT1A), hypothalamic-pituitary-adrenal systems (FKBP5) and polyamines (SAT and OATL1) associated with suicidal behavior. However, the diversity of interacting genetic loci complicates the interpretation of the development of a complex phenotype of pathology and prevents the association from being detected. To solve this problem and interpret the missing relationship between the environment and the genome, promising results were obtained from a study of epigenetic factors, which affected the expression of a number of candidate genes involved in brain functioning in suicidal behavior. The analysis of a brain obtained from suicide victims, representing a unique tool for the analysis of modified genomic processes, revealed a wide range of reprogramming patterns of DNA methylation in promoters of the genes of polyamine (OAZ1, OAZ2, AMD1, ARG2, SKA2), serotonergic (SLC6A4) and GABAergic (GABRA1) systems, HPA-axis (GR, NR3C1), tyrosine kinase (TrkB) receptors, brain-derived neurotrophic factor (BDNF). The role of histone modifications in distinct genes (Cx30, Cx43, TrkB.T1) and the expression of specific long noncoding RNAs and microRNAs in the development of suicidal behavior, which is promising for the development of diagnostic algorithms and target therapy, is discussed.
Collapse
Affiliation(s)
- R. N. Mustafin
- Bashkir State Medical University;
Bashkir State University
| | - A. V. Kazantseva
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| | - R. F. Enikeeva
- Bashkir State University;
Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| | - Yu. D. Davydova
- Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| | - S. B. Malykh
- Psychological Institute of the Russian Academy of Education
| | | | - E. K. Khusnutdinova
- Bashkir State Medical University;
Bashkir State University;
Institute of Biochemistry and Genetics – Subdivision of the Ufa Federal Research Centre, RAS
| |
Collapse
|
30
|
Stress, epigenetics and depression: A systematic review. Neurosci Biobehav Rev 2019; 102:139-152. [DOI: 10.1016/j.neubiorev.2019.04.010] [Citation(s) in RCA: 150] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 04/16/2019] [Accepted: 04/17/2019] [Indexed: 12/15/2022]
|
31
|
Zhou Z, Lunetta KL, Smith AK, Wolf EJ, Stone A, Schichman SA, McGlinchey RE, Milberg WP, Miller MW, Logue MW. Correction for multiple testing in candidate-gene methylation studies. Epigenomics 2019; 11:1089-1105. [PMID: 31240951 PMCID: PMC7132638 DOI: 10.2217/epi-2018-0204] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 05/15/2019] [Indexed: 01/02/2023] Open
Abstract
Aim: We compared the performance of multiple testing corrections for candidate gene methylation studies, namely Sidak (accurate Bonferroni), false-discovery rate and three adjustments that incorporate the correlation between CpGs: extreme tail theory (ETT), Gao et al. (GEA), and Li and Ji methods. Materials & methods: The experiment-wide type 1 error rate was examined in simulations based on Illumina EPIC and 450K data. Results: For high-correlation genes, Sidak and false-discovery rate corrections were conservative while the Li and Ji method was liberal. The GEA method tended to be conservative unless a threshold parameter was adjusted. The ETT yielded an appropriate type 1 error rate. Conclusion: For genes with substantial correlation across measured CpGs, GEA and ETT can appropriately correct for multiple testing in candidate gene methylation studies.
Collapse
Affiliation(s)
- Zhenwei Zhou
- National Center for PTSD, VA Boston Healthcare System, Boston, MA 02130, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA 02118, USA
| | - Kathryn L Lunetta
- Department of Biostatistics, Boston University School of Public Health, Boston, MA 02118, USA
| | - Alicia K Smith
- Department of Gynecology & Obstetrics, Emory University, Atlanta, GA 30322, USA
- Department of Psychiatry & Behavioral Sciences, Emory University, Atlanta, GA 30329, USA
| | - Erika J Wolf
- National Center for PTSD, VA Boston Healthcare System, Boston, MA 02130, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA 02118, USA
| | - Annjanette Stone
- Pharmacogenomics Analysis Laboratory, Research Service, Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA
| | - Steven A Schichman
- Pharmacogenomics Analysis Laboratory, Research Service, Central Arkansas Veterans Healthcare System, Little Rock, AR 72205, USA
| | - Regina E McGlinchey
- Geriatric Research Educational & Clinical Center & Translational Research Center for TBI & Stress Disorders, VA Boston Healthcare System, Boston, MA 02130, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA 02215, USA
| | - William P Milberg
- Department of Psychiatry, Harvard Medical School, Boston, MA 02215, USA
- Department of Psychiatry, Boston University, Boston, MA 02118, USA
| | - Mark W Miller
- National Center for PTSD, VA Boston Healthcare System, Boston, MA 02130, USA
- Department of Psychiatry, Boston University, Boston, MA 02118, USA
| | - Mark W Logue
- National Center for PTSD, VA Boston Healthcare System, Boston, MA 02130, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA 02118, USA
- Department of Psychiatry, Boston University, Boston, MA 02118, USA
- Biomedical Genetics, Boston University School of Medicine, Boston, MA 02118, USA
| |
Collapse
|
32
|
Ijabi J, Moradi-Sardareh H, Afrisham R, Seifi F, Ijabi R. SKA2 gene - A novel biomarker for latent anxiety and preterm birth prediction. Eur J Obstet Gynecol Reprod Biol 2019; 237:106-112. [PMID: 31035118 DOI: 10.1016/j.ejogrb.2019.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 03/09/2019] [Accepted: 04/14/2019] [Indexed: 10/27/2022]
Abstract
BACKGROUND There is a relationship between preterm birth (PTB) and anxiety. Spindle and Kinetochore Associated Complex Subunit 2 (SKA2) gene polymorphism (NC_000017.11: g.59110368 G > A) has also been associated with the development of anxiety. The current study was designed to evaluate the relationship between SKA2 gene SNP (NC_000017.11: g.59110368 G > A) with the occurrence of anxiety and PTB which might be considered a predictive biomarker for the prediction of preterm delivery. METHODS SKA2 gene (SNP rs7208505) genotyping was performed in 300 women with term birth (TB) and 293 women with PTB using PCR-RFLP method and then followed by DNA sequencing. Cortisol level was analyzed with ELISA method and the presence of anxiety was detected using Spielberg Inventory. RESULTS The AA genotype of SKA2 gene significantly increased the risk of PTB compared to the GG genotype by 9.6 fold ([CI] 4.5-20.2, P < 0.001) according to codominant model. Also, the frequency of A allele was significantly higher in PTB group (χ2 = 20.4, df = 1, P < 0.001) in comparison with the control group that increased the risk of PTB by 1.703 fold ([CI] 1.39-2.23, P < 0.001). Women with higher cortisol level with average 343.7 ± 3 nmol/L had AA genotype, while, the concentrations of cortisol in women with AG, and GG genotypes were 244.2 ± 3.1 nmol/L and 192.6 ± 2.5 nmol/L, respectively (P < 0.001). The score of apparent and latent anxiety in women with the AA genotype was higher compared to the AG and GG genotypes and also this score in women with the AG genotype was higher than the GG genotypes (P < 0.001). The history of preterm delivery was higher in women with the AA genotype (42.1%) in comparison with the GG (14.9%) and AG (22%) genotypes (P < 0.05). CONCLUSION The results of the current study suggest that prognosis of women with the AA genotype are more susceptible to be spontaneous preterm birth. Therefore, the A allele of SKA2 gene (NC_000017.11:g.59110368 G > A) could be as a predictive biomarker for the risk of PTB.
Collapse
Affiliation(s)
- Janat Ijabi
- Department of Hematology, School of Allied Health, Iran University of Medical Sciences, Tehran, Iran
| | - Hemen Moradi-Sardareh
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Reza Afrisham
- Department of Clinical Biochemistry, Faculty of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Seifi
- Counseling and Reproductive Health Research Centre, Golestan University of Medical Sciences, Gorgan, Iran
| | - Roghayeh Ijabi
- Counseling and Reproductive Health Research Centre, Golestan University of Medical Sciences, Gorgan, Iran.
| |
Collapse
|
33
|
Blacker CJ, Frye MA, Morava E, Kozicz T, Veldic M. A Review of Epigenetics of PTSD in Comorbid Psychiatric Conditions. Genes (Basel) 2019; 10:genes10020140. [PMID: 30781888 PMCID: PMC6410143 DOI: 10.3390/genes10020140] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/08/2019] [Accepted: 02/11/2019] [Indexed: 12/31/2022] Open
Abstract
Post-traumatic stress disorder (PTSD) is an acquired psychiatric disorder with functionally impairing physiological and psychological symptoms following a traumatic exposure. Genetic, epigenetic, and environmental factors act together to determine both an individual's susceptibility to PTSD and its clinical phenotype. In this literature review, we briefly review the candidate genes that have been implicated in the development and severity of the PTSD phenotype. We discuss the importance of the epigenetic regulation of these candidate genes. We review the general epigenetic mechanisms that are currently understood, with examples of each in the PTSD phenotype. Our focus then turns to studies that have examined PTSD in the context of comorbid psychiatric disorders or associated social and behavioral stressors. We examine the epigenetic variation in cases or models of PTSD with comorbid depressive disorders, anxiety disorders, psychotic disorders, and substance use disorders. We reviewed the literature that has explored epigenetic regulation in PTSD in adverse childhood experiences and suicide phenotypes. Finally, we review some of the information available from studies of the transgenerational transmission of epigenetic variation in maternal cases of PTSD. We discuss areas pertinent for future study to further elucidate the complex interactions between epigenetic modifications and this complex psychiatric disorder.
Collapse
Affiliation(s)
- Caren J Blacker
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN 55905, USA.
| | - Mark A Frye
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN 55905, USA.
| | - Eva Morava
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA.
- Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA.
| | - Tamas Kozicz
- Center for Individualized Medicine, Mayo Clinic, Rochester, MN 55905, USA.
- Clinical Genomics, Mayo Clinic, Rochester, MN 55905, USA.
| | - Marin Veldic
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN 55905, USA.
| |
Collapse
|
34
|
SKA2/FAM33A: A novel gene implicated in cell cycle, tumorigenesis, and psychiatric disorders. Genes Dis 2018; 6:25-30. [PMID: 30906829 PMCID: PMC6411626 DOI: 10.1016/j.gendis.2018.11.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2018] [Accepted: 11/07/2018] [Indexed: 12/13/2022] Open
Abstract
SKA2 (spindle and KT associated 2), also referred to as FAM33A (family with sequence similarity 33, member A), is a recently identified gene involved in cell cycle regulation, and growing evidence is implicating its roles in tumorigenesis and psychiatric disorders. It has been demonstrated that SKA2, along with its coworkers SKA1 and SKA3, constitutes the SKA complex which plays a critical role in the maintenance of the metaphase plate and/or spindle checkpoint silencing during mitosis. SKA2 is over-expressed both in cancer cell lines and clinical samples including small cell lung cancer and breast cancer, whereas downregulation of SKA2 is associated with depression and suicidal ideation. The expression of SKA2 is regulated by transcription factors including NF-κΒ and CREB, miRNAs as well as DNA methylation. In this review, we provide an overview of studies that reveal SKA2 gene and protein characteristics as well as physiological function, with a special focus on its transcription regulatory mechanisms, and also provide a summary regarding the translational opportunity of the SKA2 gene as a clinical biomarker for cancers and psychiatric disorders.
Collapse
|
35
|
Neurotransmitter, Peptide, and Steroid Hormone Abnormalities in PTSD: Biological Endophenotypes Relevant to Treatment. Curr Psychiatry Rep 2018; 20:52. [PMID: 30019147 DOI: 10.1007/s11920-018-0908-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
PURPOSE OF REVIEW This review summarizes neurotransmitter, peptide, and other neurohormone abnormalities associated with posttraumatic stress disorder (PTSD) and relevant to development of precision medicine therapeutics for PTSD. RECENT FINDINGS As the number of molecular abnormalities associated with PTSD across a variety of subpopulations continues to grow, it becomes clear that no single abnormality characterizes all individuals with PTSD. Instead, individually variable points of molecular dysfunction occur within several different stress-responsive systems that interact to produce the clinical PTSD phenotype. Future work should focus on critical interactions among the systems that influence PTSD risk, severity, chronicity, comorbidity, and response to treatment. Effort also should be directed toward development of clinical procedures by which points of molecular dysfunction within these systems can be identified in individual patients. Some molecular abnormalities are more common than others and may serve as subpopulation biological endophenotypes for targeting of currently available and novel treatments.
Collapse
|
36
|
Kim GS, Smith AK, Nievergelt CM, Uddin M. Neuroepigenetics of Post-Traumatic Stress Disorder. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 158:227-253. [PMID: 30072055 PMCID: PMC6474244 DOI: 10.1016/bs.pmbts.2018.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
While diagnosis of PTSD is based on behavioral symptom clusters that are most directly associated with brain function, epigenetic studies of PTSD in humans to date have been limited to peripheral tissues. Animal models of PTSD have been key for understanding the epigenetic alterations in the brain most directly relevant to endophenotypes of PTSD, in particular those pertaining to fear memory and stress response. This chapter provides an overview of neuroepigenetic studies based on animal models of PTSD, with an emphasis on the effect of stress on fear memory. Where relevant, we also describe human-based studies with relevance to neuroepigenetic insights gleaned from animal work and suggest promising directions for future studies of PTSD neuroepigenetics in living humans that combine peripheral epigenetic measures with measures of central nervous system activity, structure and function.
Collapse
Affiliation(s)
- Grace S Kim
- Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Medical Scholars Program, University of Illinois College of Medicine, Urbana, IL, United States
| | - Alicia K Smith
- Department of Gynecology and Obstetrics, Emory University, Atlanta, GA, United States; Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, United States
| | - Caroline M Nievergelt
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, United States
| | - Monica Uddin
- Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Department of Psychology, University of Illinois at Urbana-Champaign, Urbana, IL, United States; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, United States.
| |
Collapse
|
37
|
Roy B, Dwivedi Y. Understanding the Neuroepigenetic Constituents of Suicide Brain. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2018; 157:233-262. [PMID: 29933952 DOI: 10.1016/bs.pmbts.2018.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Stressful life incidents often cause a predisposition for developing mental disorders such as major depressive disorder (MDD). Impaired neurocognitive and neuro-vegetative functions of the central nervous system are the hallmarks of this mental illness. Blunted responses from emotionally salient regions of the brain including cortex, hippocampus, and amygdala have been associated with MDD-related behavioral changes. Moreover, improper signal processing and neuronal atrophy were held responsible for the overall dysfunctionality of these vulnerable regions in the MDD brain. The prevalence of genetic susceptibility along with adverse environmental stimuli often makes the situation worse for MDD patients, leading to an increased risk of suicidal behavior and eventually death by suicide. Despite considerable efforts to understand the complex neurobiology associated with MDD and suicidal behavior, their pathological determinants remain mostly elusive. Recent research, however, has shown that epigenetic perturbations have a formidable impact on the etiopathogenesis of MDD. Understanding the neuroepigenetic nature of this mental disorder may provide opportunities to devise more effective treatment strategies. Moreover, this can potentially lead to identifying predictive biomarkers associated with suicide risk. The present chapter critically reviews studies pertaining to epigenetic signatures of MDD and suicide brain.
Collapse
Affiliation(s)
- Bhaskar Roy
- University of Alabama at Birmingham, Birmingham, AL, United States
| | - Yogesh Dwivedi
- University of Alabama at Birmingham, Birmingham, AL, United States.
| |
Collapse
|
38
|
Abstract
Purpose of Review Traumatic stress has profound impacts on many domains of life, yet the mechanisms that confer risk for or resilience to the development of traumatic stress-related psychopathologies are still very much under investigation. The current review highlights recent developments in the field of traumatic stress epigenetics in humans. Recent Findings Recent results reveal traumatic stress-related epigenetic dysregulation in neural, endocrine, and immune system genes and associated networks. Emerging work combining imaging with epigenetic measures holds promise for addressing the correspondence between peripheral and central effects of traumatic stress. A growing literature is also documenting the transgenerational effects of prenatal stress exposures in humans. Summary Moving forward, increasing focus on epigenetic marks of traumatic stress in CNS tissue will create a clearer picture of the relevance of peripheral measures; PTSD brain banks will help in this regard. Similarly, leveraging multigenerational birth cohort data will do much to clarify the extent of transgenerational epigenetic effects of traumatic stress. Greater efforts should be made towards developing prospective studies with longitudinal design.
Collapse
Affiliation(s)
- John R Pfeiffer
- Department of Psychology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Carl R. Woese Institute for Genomic Biology, Urbana, IL, USA
| | - Leon Mutesa
- Center for Human Genetics, College of Medicine & Health Sciences, University of Rwanda, Kigali, Rwanda
| | - Monica Uddin
- Department of Psychology, University of Illinois at Urbana-Champaign, Urbana, IL, USA.,Carl R. Woese Institute for Genomic Biology, Urbana, IL, USA.,Neuroscience Program, University of Illinois at Urbana-Champaign, Urbana, IL, USA
| |
Collapse
|
39
|
Abstract
PURPOSE OF REVIEW The aim of this paper is to review the recent literature on traumatic stress-related accelerated aging, including a focus on cellular mechanisms and biomarkers of cellular aging and on the clinical manifestations of accelerated biological aging. RECENT FINDINGS Multiple lines of research converge to suggest that PTSD is associated with accelerated aging in the epigenome, and the immune and inflammation systems, and this may be reflected in premature onset of cardiometabolic and cardiovascular disease. The current state of research paves the way for future work focused on identifying the peripheral and central biological mechanisms linking traumatic stress to accelerated biological aging and medical morbidity, with an emphasis on processes involved in inflammation, immune functioning, oxidative stress, autonomic arousal, and stress response. Ultimately, such work could help reduce the pace of biological aging and improve health and wellness.
Collapse
Affiliation(s)
- Erika J Wolf
- National Center for PTSD, VA Boston Healthcare System, (116B-2), 150 South Huntington Ave, Boston, MA, 02130, USA.
- Department of Psychiatry, Boston University School of Medicine, Boston, MA, USA.
| | | |
Collapse
|
40
|
Glenn CR, Cha CB, Kleiman EM, Nock MK. Understanding Suicide Risk within the Research Domain Criteria (RDoC) Framework: Insights, Challenges, and Future Research Considerations. Clin Psychol Sci 2017; 5:568-592. [PMID: 28670505 PMCID: PMC5487002 DOI: 10.1177/2167702616686854] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Suicide is a leading cause of death worldwide. Prior research has focused primarily on sociodemographic and psychiatric risk factors with little improvement in the prediction or prevention of suicidal behavior over time. The Research Domain Criteria (RDoC) may be an especially useful framework for advancing research in this area. This paper provides a brief and broad overview of research on suicidal behavior relating to each of the RDoC domains-highlighting the RDoC construct(s) where research has focused, construct(s) where research is lacking, and suggestions for future research directions. We also discuss major challenges for suicide research within the RDoC framework, including the intersection of RDoC domains, interaction of domains with the environment, incorporation of developmental stage, integration of distal and proximal processes, and inclusion of suicide-specific constructs. We conclude by underscoring important considerations for future research aimed at using the RDoC framework to study suicidal behavior and other forms of psychopathology.
Collapse
Affiliation(s)
- Catherine R. Glenn
- Department of Clinical and Social Sciences in Psychology, University of Rochester
| | | | | | | |
Collapse
|
41
|
Understanding epigenetic architecture of suicide neurobiology: A critical perspective. Neurosci Biobehav Rev 2016; 72:10-27. [PMID: 27836463 DOI: 10.1016/j.neubiorev.2016.10.031] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 09/26/2016] [Accepted: 10/31/2016] [Indexed: 12/29/2022]
Abstract
Current understanding of environmental cross-talk with genetic makeup is found to be mediated through an epigenetic interface which is associated with prominent reversible and heritable changes at gene expression level. Recent emergence of epigenetic modulation in shaping the genetic information has become a key regulatory factor in answering the underlying complexities associated with several mental disorders. A comprehensive understanding of the pertinent changes in the epigenetic makeup of suicide phenotype exhibits a characteristic signature with the possibility of using it as a biomarker to help predict the risk factors associated with suicide. Within the scope of this current review, the most sought after epigenetic changes of DNA methylation and histone modification are thoroughly scrutinized to understand their close functional association with the broad spectrum of suicide phenotype.
Collapse
|
42
|
Discovery and replication of a peripheral tissue DNA methylation biosignature to augment a suicide prediction model. Clin Epigenetics 2016; 8:113. [PMID: 27822318 PMCID: PMC5093988 DOI: 10.1186/s13148-016-0279-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Accepted: 10/20/2016] [Indexed: 12/25/2022] Open
Abstract
Background Suicide is the second leading cause of death among adolescents in the USA, and rates are rising. Methods to identify individuals at risk are essential for implementing prevention strategies, and the development of a biomarker can potentially improve prediction of suicidal behaviors. Prediction of our previously reported SKA2 biomarker for suicide and PTSD is substantially improved by questionnaires assessing perceived stress or anxiety and is therefore reliant on psychological assessment. However, such stress-related states may also leave a biosignature that could equally improve suicide prediction. In genome-wide DNA methylation data, we observed significant overlap between waking cortisol-associated and suicide-associated DNA methylation in blood and the brain, respectively. Results Using a custom bioinformatic brain to blood discovery algorithm, we derived a DNA methylation biosignature that interacts with SKA2 methylation to improve the prediction of suicidal ideation in our existing suicide prediction model across both blood and saliva data sets. This biosignature was independently validated in the Grady Trauma Project cohort and interacted with HPA axis metrics in the same cohort. The biosignature showed a relationship with immune status by its correlation with myeloid-derived cell proportions in all data sets and with IL-6 measures in a prospective postpartum depression cohort. Three probes showed significant correlations with the biosignature: cg08469255 (DDR1), cg22029879 (ARHGEF10), and cg24437859 (SHP1), of which SHP1 methylation correlated with immune measures. Conclusions We conclude that this biosignature interacts with SKA2 methylation to improve suicide prediction and may represent a biological state of immune and HPA axis modulation that mediates suicidal behavior. Electronic supplementary material The online version of this article (doi:10.1186/s13148-016-0279-1) contains supplementary material, which is available to authorized users.
Collapse
|