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Mahrous NN, Albaqami A, Saleem RA, Khoja B, Khan MI, Hawsawi YM. The known and unknown about attention deficit hyperactivity disorder (ADHD) genetics: a special emphasis on Arab population. Front Genet 2024; 15:1405453. [PMID: 39165752 PMCID: PMC11333229 DOI: 10.3389/fgene.2024.1405453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Accepted: 07/15/2024] [Indexed: 08/22/2024] Open
Abstract
Attention deficit hyperactivity disorder (ADHD) is a clinically and genetically heterogeneous neurodevelopmental syndrome characterized by behavioral appearances such as impulsivity, inattention, and hyperactivity. The prevalence of ADHD is high in childhood when compared to adults. ADHD has been significantly advanced by genetic research over the past 25 years. However, it is logically conceivable that both genetic and/or non-genetic factors, such as postnatal environmental and social influences, are associated with ADHD phenotype in Arab populations. While genetic influences are strongly linked with the etiology of ADHD, it remains obscure how consanguinity which is an underlying factor for many genetic diseases, contributes to ADHD subtypes. Arabian Gulf Nations have one the highest rates of consanguineous marriages, and consanguinity plays an important contributing factor in many genetic diseases that exist in higher percentages in Arabian Gulf Nations. Therefore, the current review aims to shed light on the genetic variants associated with ADHD subtypes in Arabian Gulf nations and Saudi Arabia in particular. It also focuses on the symptoms and the diagnosis of ADHD before turning to the neuropsychological pathways and subgroups of ADHD. The impact of a consanguinity-based understanding of the ADHD subtype will help to understand the genetic variability of the Arabian Gulf population in comparison with the other parts of the world and will provide novel information to develop new avenues for future research in ADHD.
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Affiliation(s)
- Nahed N. Mahrous
- Department of Biological Sciences, College of Science, University of Hafr Al-Batin, Hafr Al- Batin, Saudi Arabia
| | - Amirah Albaqami
- Department of Clinical Laboratory Sciences, Turbah University College, Taif University, Taif, Saudi Arabia
| | - Rimah A. Saleem
- Department of Biochemistry and Molecular Medicine, College of Medicine, Al-Faisal University, Riyadh, Saudi Arabia
| | - Basmah Khoja
- Research Center, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Mohammed I. Khan
- Research Center, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
| | - Yousef M. Hawsawi
- Department of Biochemistry and Molecular Medicine, College of Medicine, Al-Faisal University, Riyadh, Saudi Arabia
- Research Center, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
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2
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Shen F, Zhou H. Advances in the etiology and neuroimaging of children with attention deficit hyperactivity disorder. Front Pediatr 2024; 12:1400468. [PMID: 38915870 PMCID: PMC11194347 DOI: 10.3389/fped.2024.1400468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Accepted: 05/20/2024] [Indexed: 06/26/2024] Open
Abstract
Attention deficit hyperactivity disorder (ADHD) is the most common neurodevelopmental disorder in children, characterized by age-inappropriate inattention, hyperactivity, and impulsivity, which can cause extensive damage to children's academic, occupational, and social skills. This review will present current advancements in the field of attention deficit hyperactivity disorder, including genetics, environmental factors, epigenetics, and neuroimaging features. Simultaneously, we will discuss the highlights of promising directions for further study.
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Affiliation(s)
| | - Hui Zhou
- Department of Pediatrics, West China Second University Hospital, Sichuan University, Key Laboratory of Birth Defects and Related Diseases of Women and Children of Ministry of Education, Chengdu, China
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Yu SY, Kim SH, Choo JH, Jang S, Kim J, Ahn K, Hwang SY. Potential Effects of Low-Level Toluene Exposure on the Nervous System of Mothers and Infants. Int J Mol Sci 2024; 25:6215. [PMID: 38892402 PMCID: PMC11172598 DOI: 10.3390/ijms25116215] [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: 04/26/2024] [Revised: 05/29/2024] [Accepted: 06/02/2024] [Indexed: 06/21/2024] Open
Abstract
In day-to-day living, individuals are exposed to various environmentally hazardous substances that have been associated with diverse diseases. Exposure to air pollutants can occur during breathing, posing a considerable risk to those with environmental health vulnerabilities. Among vulnerable individuals, maternal exposure can negatively impact the mother and child in utero. The developing fetus is particularly vulnerable to environmentally hazardous substances, with potentially greater implications. Among air pollutants, toluene is neurotoxic, and its effects have been widely explored. However, the impact of low-level toluene exposure in daily life remains unclear. Herein, we evaluated 194 mothers and infants from the Growing children's health and Evaluation of Environment (GREEN) cohort to determine the possible effects of early-life toluene exposure on the nervous system. Using Omics experiments, the effects of toluene were confirmed based on epigenetic changes and altered mRNA expression. Various epigenetic changes were identified, with upregulated expression potentially contributing to diseases such as glioblastoma and Alzheimer's, and downregulated expression being associated with structural neuronal abnormalities. These findings were detected in both maternal and infant groups, suggesting that maternal exposure to environmental hazardous substances can negatively impact the fetus. Our findings will facilitate the establishment of environmental health policies, including the management of environmentally hazardous substances for vulnerable groups.
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Affiliation(s)
- So Yeon Yu
- Institute of Natural Science & Technology, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea;
| | - Seung Hwan Kim
- Department of Bio-Nanotechnology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea;
| | - Jeong Hyeop Choo
- Department of Molecular & Life Science, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea;
| | - Sehun Jang
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea; (S.J.)
| | - Jihyun Kim
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea; (S.J.)
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology, Seoul 06355, Republic of Korea
| | - Kangmo Ahn
- Department of Pediatrics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Republic of Korea; (S.J.)
- Department of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology, Seoul 06355, Republic of Korea
| | - Seung Yong Hwang
- Department of Medicinal and Life Sciences, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea
- Department of Applied Artificial Intelligence, Hanyang University ERICA, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, Republic of Korea
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Ko YK, Chi S, Nam GH, Baek KW, Ahn K, Ahn Y, Kang J, Lee MS, Gim JA. Epigenome-wide Association Study for Tic Disorders in Children: A Preliminary Study in Korean Population. CLINICAL PSYCHOPHARMACOLOGY AND NEUROSCIENCE : THE OFFICIAL SCIENTIFIC JOURNAL OF THE KOREAN COLLEGE OF NEUROPSYCHOPHARMACOLOGY 2024; 22:295-305. [PMID: 38627076 PMCID: PMC11024688 DOI: 10.9758/cpn.23.1099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Revised: 09/24/2023] [Accepted: 11/24/2023] [Indexed: 04/20/2024]
Abstract
Objective : Tic disorders can affect the quality of life in both childhood and adolescence. Many factors are involved in the etiology of tic disorders, and the genetic and epigenetic factors of tic disorders are considered complex and heterogeneous. Methods : In this study, the differentially methylated regions (DMRs) between normal controls (n = 24; aged 6-15; 7 females) and patients with tic disorders (n = 16; aged 6-15; 5 females) were analyzed. We performed an epigenome-wide association study of tic disorders in Korean children. The tics were assessed using Yale Global Tic Severity Scale. The DNA methylation data consisted of 726,945 cytosine phosphate guanine (CpG) sites, assessed using the Illumina Infinium MethylationEPIC (850k) BeadChip. The DNA methylation data of the 40 participants were retrieved, and DMRs between the four groups based on sex and tic disorder were identified. From 28 male and 16 female samples, 37 and 38 DMRs were identified, respectively. We analyzed the enriched terms and visualized the network, heatmap, and upset plot. Results : In male, Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis revealed hypomethylated patterns in the ligand, receptor, and second signal transductors of the PI3K-Akt and MAPK signaling pathway (most cells were indicated as green color), and in female, the opposite patterns were revealed (most cells were indicated as red color). Five mental disorder-related enriched terms were identified in the network analysis. Conclusion : Here, we provide insights into the epigenetic mechanisms of tic disorders. Abnormal DNA methylation patterns are associated with mental disorder-related symptoms.
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Affiliation(s)
- Young Kyung Ko
- Division of Pulmonary, Allergy and Critical Care Medicine, Department of Internal Medicine, Korea University Guro Hospital, Seoul, Korea
| | - Suhyuk Chi
- Department of Psychiatry, Korea University Guro Hospital, Seoul, Korea
| | - Gyu-Hwi Nam
- PhileKorea Technology Co. Ltd., Daejeon, Korea
| | - Kyung-Wan Baek
- Department of Physical Education, Gyeongsang National University, Jinju, Korea
| | | | | | - June Kang
- Department of Brain and Cognitive Engineering, Korea University, Seoul, Korea
| | - Moon-Soo Lee
- Department of Psychiatry, Korea University Guro Hospital, Seoul, Korea
| | - Jeong-An Gim
- Department of Medical Science, Soonchunhyang University, Asan, Korea
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Shastri GG, Sudre G, Ahn K, Jung B, Kolachana B, Auluck PK, Elnitski L, Marenco S, Shaw P. Cortico-striatal differences in the epigenome in attention-deficit/ hyperactivity disorder. Transl Psychiatry 2024; 14:189. [PMID: 38605038 PMCID: PMC11009227 DOI: 10.1038/s41398-024-02896-x] [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: 03/04/2024] [Revised: 03/20/2024] [Accepted: 04/02/2024] [Indexed: 04/13/2024] Open
Abstract
While epigenetic modifications have been implicated in ADHD through studies of peripheral tissue, to date there has been no examination of the epigenome of the brain in the disorder. To address this gap, we mapped the methylome of the caudate nucleus and anterior cingulate cortex in post-mortem tissue from fifty-eight individuals with or without ADHD. While no single probe showed adjusted significance in differential methylation, several differentially methylated regions emerged. These regions implicated genes involved in developmental processes including neurogenesis and the differentiation of oligodendrocytes and glial cells. We demonstrate a significant association between differentially methylated genes in the caudate and genes implicated by GWAS not only in ADHD but also in autistic spectrum, obsessive compulsive and bipolar affective disorders through GWAS. Using transcriptomic data available on the same subjects, we found modest correlations between the methylation and expression of genes. In conclusion, this study of the cortico-striatal methylome points to gene and gene pathways involved in neurodevelopment, consistent with studies of common and rare genetic variation, as well as the post-mortem transcriptome in ADHD.
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Affiliation(s)
- Gauri G Shastri
- Social and Behavioral Research Branch, National Human Genome Research Institute, NIH, Bethesda, MD, 20892, USA
| | - Gustavo Sudre
- Social and Behavioral Research Branch, National Human Genome Research Institute, NIH, Bethesda, MD, 20892, USA
| | - Kwangmi Ahn
- Social and Behavioral Research Branch, National Human Genome Research Institute, NIH, Bethesda, MD, 20892, USA
| | - Benjamin Jung
- Social and Behavioral Research Branch, National Human Genome Research Institute, NIH, Bethesda, MD, 20892, USA
| | - Bhaskar Kolachana
- Human Brain Collection Core, National Institute of Mental Health, NIH, Bethesda, MD, 20892, USA
| | - Pavan K Auluck
- Human Brain Collection Core, National Institute of Mental Health, NIH, Bethesda, MD, 20892, USA
| | - Laura Elnitski
- Translational and Functional Genomics Branch, National Human Genome Research Institute, NIH, Bethesda, MD, 20892, USA
| | - Stefano Marenco
- Human Brain Collection Core, National Institute of Mental Health, NIH, Bethesda, MD, 20892, USA
| | - Philip Shaw
- Social and Behavioral Research Branch, National Human Genome Research Institute, NIH, Bethesda, MD, 20892, USA.
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Camerota M, Lester BM, Castellanos FX, Carter BS, Check J, Helderman J, Hofheimer JA, McGowan EC, Neal CR, Pastyrnak SL, Smith LM, O'Shea TM, Marsit CJ, Everson TM. Epigenome-wide association study identifies neonatal DNA methylation associated with two-year attention problems in children born very preterm. Transl Psychiatry 2024; 14:126. [PMID: 38418845 PMCID: PMC10902402 DOI: 10.1038/s41398-024-02841-y] [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: 05/11/2023] [Revised: 02/07/2024] [Accepted: 02/16/2024] [Indexed: 03/02/2024] Open
Abstract
Prior research has identified epigenetic predictors of attention problems in school-aged children but has not yet investigated these in young children, or children at elevated risk of attention problems due to preterm birth. The current study evaluated epigenome-wide associations between neonatal DNA methylation and attention problems at age 2 years in children born very preterm. Participants included 441 children from the Neonatal Neurobehavior and Outcomes in Very Preterm Infants (NOVI) Study, a multi-site study of infants born < 30 weeks gestational age. DNA methylation was measured from buccal swabs collected at NICU discharge using the Illumina MethylationEPIC Bead Array. Attention problems were assessed at 2 years of adjusted age using the attention problems subscale of the Child Behavior Checklist (CBCL). After adjustment for multiple testing, DNA methylation at 33 CpG sites was associated with child attention problems. Differentially methylated CpG sites were located in genes previously linked to physical and mental health, including several genes associated with ADHD in prior epigenome-wide and genome-wide association studies. Several CpG sites were located in genes previously linked to exposure to prenatal risk factors in the NOVI sample. Neonatal epigenetics measured at NICU discharge could be useful in identifying preterm children at risk for long-term attention problems and related psychiatric disorders, who could benefit from early prevention and intervention efforts.
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Affiliation(s)
- Marie Camerota
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA.
- Brown Center for the Study of Children at Risk, Alpert Medical School of Brown University and Women and Infants Hospital, Providence, RI, USA.
| | - Barry M Lester
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA
- Brown Center for the Study of Children at Risk, Alpert Medical School of Brown University and Women and Infants Hospital, Providence, RI, USA
- Department of Pediatrics, Alpert Medical School of Brown University and Women and Infants Hospital, Providence, RI, USA
| | - Francisco Xavier Castellanos
- Department of Child and Adolescent Psychiatry, NYU Grossman School of Medicine, New York, NY, USA
- Nathan Kline Institute for Psychiatric Research, Orangeburg, NY, USA
| | - Brian S Carter
- Department of Pediatrics-Neonatology, Children's Mercy Hospital, Kansas City, MO, USA
| | - Jennifer Check
- Department of Pediatrics, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Jennifer Helderman
- Department of Pediatrics, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Julie A Hofheimer
- Department of Pediatrics, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Elisabeth C McGowan
- Department of Pediatrics, Alpert Medical School of Brown University and Women and Infants Hospital, Providence, RI, USA
| | - Charles R Neal
- Department of Pediatrics, University of Hawaii John A. Burns School of Medicine, Honolulu, HI, USA
| | - Steven L Pastyrnak
- Department of Pediatrics, Spectrum Health-Helen DeVos Hospital, Grand Rapids, MI, USA
| | - Lynne M Smith
- Department of Pediatrics, Harbor-UCLA Medical Center, Torrance, CA, USA
| | - Thomas Michael O'Shea
- Department of Pediatrics, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, USA
| | - Carmen J Marsit
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - Todd M Everson
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
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Navalón P, Merchan-Naranjo J, Ghosn F, Almansa B, Chafer-Pericas C, González-Peñas J, Rodríguez-Toscano E, Zeballos S, Arriaga M, Castro Castro P, Blanco Bravo D, Vento M, Pina-Camacho L, García-Blanco A. Study of the pathophysiological mechanisms associated with the onset and course of neurodevelopmental disorders in preterm infants (the PeriSTRESS-PremTEA study): Rationale, objectives, design and sample description. SPANISH JOURNAL OF PSYCHIATRY AND MENTAL HEALTH 2024; 17:19-27. [PMID: 33618030 DOI: 10.1016/j.rpsm.2021.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 12/03/2020] [Accepted: 02/13/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND There are few studies exploring the pathophysiological pathways that may condition differentially the emergence/course of neurodevelopmental disorders (ND) in very preterm and extremely preterm newborns (VPTN/EPTN). Furthermore, there are no established biological markers predictive of ND in this population. The aim of this study is four-fold: in two cohorts of VPTN/EPTN (i) to characterize the emergence/course of ND up to corrected-age 6 years, (ii) to identify those factors (from prenatal stages up to age 6 years) that explain the interindividual differences related to emergence/course of ND, (iii) to identify in the first hours/days of life a urinary metabolomic biomarker profile predictive of ND, and (iv) to determine longitudinally variations in DNA methylation patterns predictive of ND. METHODS Observational, longitudinal, prospective, six-year follow-up, multicentre collaborative study. Two cohorts are being recruited: the PeriSTRESS-Valencia-cohort (n=26 VPTN, 18 EPTN, and 122 born-at-term controls), and the PremTEA-Madrid-cohort (n=49 EPTN and n=29 controls). RESULTS We describe the rationale, objectives and design of the PeriSTRESS-PremTEA project and show a description at birth of the recruited samples. CONCLUSIONS The PeriSTRESS-PremTEA project could help improve early identification of clinical, environmental and biological variables involved in the physiopathology of ND in VPTN/EPTN. It could also help to improve the early identification of non-invasive ND biomarkers in this population. This may allow early ND detection as well as early and personalised intervention for these children.
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Affiliation(s)
- Pablo Navalón
- Neonatal Research Group, La Fe Health Research Institute, Valencia, España; Department of Psychiatry, La Fe University and Polytechnic Hospital, Valencia, España
| | - Jéssica Merchan-Naranjo
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañon, CIBERSAM, IiSGM, School of Medicine, Universidad Complutense, Madrid, España
| | - Farah Ghosn
- Neonatal Research Group, La Fe Health Research Institute, Valencia, España
| | - Belén Almansa
- Neonatal Research Group, La Fe Health Research Institute, Valencia, España
| | | | - Javier González-Peñas
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañon, CIBERSAM, IiSGM, School of Medicine, Universidad Complutense, Madrid, España
| | - Elisa Rodríguez-Toscano
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañon, CIBERSAM, IiSGM, School of Medicine, Universidad Complutense, Madrid, España
| | - Susana Zeballos
- Department of Neonatology, Hospital General Universitario Gregorio Marañon, School of Medicine, Universidad Complutense, Madrid, España
| | - María Arriaga
- Department of Neonatology, Hospital General Universitario Gregorio Marañon, School of Medicine, Universidad Complutense, Madrid, España
| | - Pedro Castro Castro
- Section of Neuropaediatrics, Department of Paediatrics, Hospital General Universitario Gregorio Marañon, School of Medicine, Universidad Complutense, Madrid, España
| | - Dorotea Blanco Bravo
- Department of Neonatology, Hospital General Universitario Gregorio Marañon, School of Medicine, Universidad Complutense, Madrid, España
| | - Máximo Vento
- Neonatal Research Group, La Fe Health Research Institute, Valencia, España
| | - Laura Pina-Camacho
- Department of Child and Adolescent Psychiatry, Institute of Psychiatry and Mental Health, Hospital General Universitario Gregorio Marañon, CIBERSAM, IiSGM, School of Medicine, Universidad Complutense, Madrid, España.
| | - Ana García-Blanco
- Neonatal Research Group, La Fe Health Research Institute, Valencia, España; Department of Personality, Assessment and Psychological Treatments, University of Valencia, España
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Chen L, Liang B, Xia S, Wang F, Li Z, Shao J, Zhang Z, Chen A, Zheng S, Zhang F. Emodin promotes hepatic stellate cell senescence and alleviates liver fibrosis via a nuclear receptor (Nur77)-mediated epigenetic regulation of glutaminase 1. Br J Pharmacol 2023; 180:2577-2598. [PMID: 37263753 DOI: 10.1111/bph.16156] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Revised: 02/13/2023] [Accepted: 05/23/2023] [Indexed: 06/03/2023] Open
Abstract
BACKGROUND AND PURPOSE Senescence in hepatic stellate cells (HSCs) limits liver fibrosis. Glutaminolysis promotes HSC activation. Here, we investigated how emodin affected HSC senescence involving glutaminolysis. EXPERIMENTAL APPROACH Senescence, glutaminolysis metabolites, Nur77 nuclear translocation, glutaminase 1 (GLS1) promoter methylation and related signalling pathways were examined in human HSC-LX2 cells using multiple cellular and molecular approaches. Fibrotic mice with shRNA-mediated knockdown of Nur77 were treated with emodin-vitamin A liposome for investigating the mechanisms in vivo. Human fibrotic liver samples were examined to verify the clinical relevance. KEY RESULTS Emodin upregulated several key markers of senescence and inhibited glutaminolysis cascade in HSCs. Emodin promoted Nur77 nuclear translocation, and knockdown of Nur77 abolished emodin blockade of glutaminolysis and induction of HSC senescence. Mechanistically, emodin facilitated Nur77/DNMT3b interaction and increased GLS1 promoter methylation, leading to inhibited GLS1 expression and blockade of glutaminolysis. Moreover, the glutaminolysis intermediate α-ketoglutarate promoted extracellular signal-regulated kinase (ERK) phosphorylation, which in turn phosphorylated Nur77 and reduced its interaction with DNMT3b. This led to decreased GLS1 promoter methylation and increased GLS1 expression, forming an ERK/Nur77/glutaminolysis positive feedback loop. However, emodin repressed ERK phosphorylation and interrupted the feedback cascade, stimulating senescence in HSCs. Studies in mice showed that emodin-vitamin A liposome inhibited glutaminolysis and induced senescence in HSCs, and consequently alleviated liver fibrosis; but knockdown of Nur77 abrogated these beneficial effects. Similar alterations were validated in human fibrotic liver tissues. CONCLUSIONS AND IMPLICATIONS Emodin stimulated HSC senescence through interruption of glutaminolysis. HSC-targeted delivery of emodin represented a therapeutic option for liver fibrosis.
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Affiliation(s)
- Li Chen
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Baoyu Liang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Siwei Xia
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Feixia Wang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhanghao Li
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
- Law Sau Fai Institute for Advancing Translational Medicine in Bone and Joint Diseases, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, China
| | - Jiangjuan Shao
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zili Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Anping Chen
- Department of Pathology, School of Medicine, Saint Louis University, St. Louis, Missouri, USA
| | - Shizhong Zheng
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
| | - Feng Zhang
- Jiangsu Key Laboratory for Pharmacology and Safety Evaluation of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, China
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9
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Ni X, Zhao H, Li R, Su H, Jiao J, Yang Z, Lv Y, Pang G, Sun M, Hu C, Yuan H. Development of a model for the prediction of biological age. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2023; 240:107686. [PMID: 37421874 DOI: 10.1016/j.cmpb.2023.107686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 06/04/2023] [Accepted: 06/20/2023] [Indexed: 07/10/2023]
Abstract
BACKGROUND AND OBJECTIVE Rates of aging vary markedly among individuals, and biological age serves as a more reliable predictor of current health status than does chronological age. As such, the ability to predict biological age can support appropriate and timely active interventions aimed at improving coping with the aging process. However, the aging process is highly complex and multifactorial. Therefore, it is more scientific to construct a prediction model for biological age from multiple dimensions systematically. METHODS Physiological and biochemical parameters were evaluated to gage individual health status. Then, age-related indices were screened for inclusion in a model capable of predicting biological age. For subsequent modeling analyses, samples were divided into training and validation sets for subsequent deep learning model-based analyses (e.g. linear regression, lasso model, ridge regression, bayesian ridge regression, elasticity network, k-nearest neighbor, linear support vector machine, support vector machine, and decision tree models, and so on), with the model exhibiting the best ability to predict biological age thereby being identified. RESULTS First, we defined the individual biological age according to the individual health status. Then, after 22 candidate indices (DNA methylation, leukocyte telomere length, and specific physiological and biochemical indicators) were screened for inclusion in a model capable of predicting biological age, 14 age-related indices and gender were used to construct a model via the Bagged Trees method, which was found to be the most reliable qualitative prediction model for biological age (accuracy=75.6%, AUC=0.84) by comparing 30 different classification algorithm models. The most reliable quantitative predictive model for biological age was found to be the model developed using the Rational Quadratic method (R2=0.85, RMSE=8.731 years) by comparing 24 regression algorithm models. CONCLUSIONS Both qualitative model and quantitative model of biological age were successfully constructed from a multi-dimensional and systematic perspective. The predictive performance of our models was similar in both smaller and larger datasets, making it well-suited to predicting a given individual's biological age.
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Affiliation(s)
- Xiaolin Ni
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730, PR China
| | - Hanqing Zhao
- College of Traditional Chinese Medicine, Hebei University, Baoding, 071000, PR China
| | - Rongqiao Li
- Jiangbin Hospital, Guangxi Zhuang Autonomous Region, Nanning, 530021, PR China
| | - Huabin Su
- Jiangbin Hospital, Guangxi Zhuang Autonomous Region, Nanning, 530021, PR China
| | - Juan Jiao
- Clinical Lab, The Seventh Medical Center of Chinese People's Liberation Army General Hospital, Beijing 100700, China
| | - Ze Yang
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730, PR China
| | - Yuan Lv
- Jiangbin Hospital, Guangxi Zhuang Autonomous Region, Nanning, 530021, PR China
| | - Guofang Pang
- Jiangbin Hospital, Guangxi Zhuang Autonomous Region, Nanning, 530021, PR China
| | - Meiqi Sun
- College of Traditional Chinese Medicine, Hebei University, Baoding, 071000, PR China
| | - Caiyou Hu
- Jiangbin Hospital, Guangxi Zhuang Autonomous Region, Nanning, 530021, PR China.
| | - Huiping Yuan
- The Key Laboratory of Geriatrics, Beijing Institute of Geriatrics, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/National Center of Gerontology of National Health Commission, Beijing, 100730, PR China.
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10
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Chaumette B, Grizenko N, Fageera W, Fortier MÈ, Ter-Stepanian M, Labbe A, Joober R. Correlation of the methylomic signature of smoking during pregnancy with clinical traits in ADHD. J Psychiatry Neurosci 2023; 48:E390-E399. [PMID: 37857414 PMCID: PMC10599658 DOI: 10.1503/jpn.230062] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/25/2023] [Revised: 06/27/2023] [Accepted: 08/11/2023] [Indexed: 10/21/2023] Open
Abstract
BACKGROUND Attention deficit/hyperactivity disorder (ADHD) is a highly prevalent childhood disorder. Maternal smoking during pregnancy is a replicated environmental risk factor for this disorder. It is also a robust modifier of gene methylation during the prenatal developmental period. In this study, we sought to identify loci differentially methylated by maternal smoking during pregnancy and relate their methylation levels to various behavioural and physical outcomes relevant to ADHD. METHODS We extracted DNA from blood samples from children diagnosed with ADHD and deeply phenotyped. Genome-wide DNA methylation was assessed using Infinium MethylationEPIC BeadChip. Maternal smoking during pregnancy was self-declared and assessed retrospectively. RESULTS Our sample included 231 children with ADHD. Statistically significant differences in DNA methylation between children exposed or not to maternal smoking during pregnancy were detected in 3457 CpGs. We kept 30 CpGs with at least 5% of methylation difference between the 2 groups for further analysis. Six genes were associated with varied phenotypes of clinical relevance to ADHD. The levels of DNA methylation in RUNX1 were positively correlated with the CBCL scores, and DNA methylation in MYO1G correlated positively with the score at the Conners rating scale. Methylation level in a CpG located in GFI1 correlated with birthweight, a risk factor for ADHD. Differentially methylated regions were also identified and confirmed the association of RUNX1 methylation levels with the CBCL score. LIMITATIONS The study has several limitations, including the retrospective recall with self-report of maternal smoking during pregnancy as well as the grouping of individuals of varying age and developmental stage and of both males and females. In addition, the correlation design prevents the building of causation models. CONCLUSION This study provides evidence for the association between the level of methylation at specific loci and quantitative dimensions highly relevant for ADHD as well as birth weight, a measure that has already been associated with increased risk for ADHD. Our results provide further support to public health educational initiatives to stop maternal smoking during pregnancy.
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Affiliation(s)
- Boris Chaumette
- From the Douglas Mental Health University Institute, Montréal, Que. (Chaumette, Grizenko, Fageerat, Fortier, Ter-Stepanian, Joober); the Department of Psychiatry, McGill University, Montréal, Que. (Chaumette, Grizenko, Joober); The Neuro, McGill University, Montréal, Que. (Chaumette); the Université Paris Cité, INSERM U1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France (Chaumette); the GHU Paris Psychiatrie & Neurosciences, Paris, France (Chaumette); the Department of Human Genetics, McGill University, Montréal, Que. (Fageera, Joober); the Department of Educational and Counselling Psychology, McGill University, Montréal, Que. (Ter-Stepanian); the Département de Psychoéducation, Université de Sherbrooke, Que. (Ter-Stepanian); the Department of Decision Sciences, HEC Montreal, Montréal, Que. (Labbe); the Department of Neurology and Neurosurgery, McGill University, Montréal, Que. (Joober)
| | - Natalie Grizenko
- From the Douglas Mental Health University Institute, Montréal, Que. (Chaumette, Grizenko, Fageerat, Fortier, Ter-Stepanian, Joober); the Department of Psychiatry, McGill University, Montréal, Que. (Chaumette, Grizenko, Joober); The Neuro, McGill University, Montréal, Que. (Chaumette); the Université Paris Cité, INSERM U1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France (Chaumette); the GHU Paris Psychiatrie & Neurosciences, Paris, France (Chaumette); the Department of Human Genetics, McGill University, Montréal, Que. (Fageera, Joober); the Department of Educational and Counselling Psychology, McGill University, Montréal, Que. (Ter-Stepanian); the Département de Psychoéducation, Université de Sherbrooke, Que. (Ter-Stepanian); the Department of Decision Sciences, HEC Montreal, Montréal, Que. (Labbe); the Department of Neurology and Neurosurgery, McGill University, Montréal, Que. (Joober)
| | - Weam Fageera
- From the Douglas Mental Health University Institute, Montréal, Que. (Chaumette, Grizenko, Fageerat, Fortier, Ter-Stepanian, Joober); the Department of Psychiatry, McGill University, Montréal, Que. (Chaumette, Grizenko, Joober); The Neuro, McGill University, Montréal, Que. (Chaumette); the Université Paris Cité, INSERM U1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France (Chaumette); the GHU Paris Psychiatrie & Neurosciences, Paris, France (Chaumette); the Department of Human Genetics, McGill University, Montréal, Que. (Fageera, Joober); the Department of Educational and Counselling Psychology, McGill University, Montréal, Que. (Ter-Stepanian); the Département de Psychoéducation, Université de Sherbrooke, Que. (Ter-Stepanian); the Department of Decision Sciences, HEC Montreal, Montréal, Que. (Labbe); the Department of Neurology and Neurosurgery, McGill University, Montréal, Que. (Joober)
| | - Marie-Ève Fortier
- From the Douglas Mental Health University Institute, Montréal, Que. (Chaumette, Grizenko, Fageerat, Fortier, Ter-Stepanian, Joober); the Department of Psychiatry, McGill University, Montréal, Que. (Chaumette, Grizenko, Joober); The Neuro, McGill University, Montréal, Que. (Chaumette); the Université Paris Cité, INSERM U1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France (Chaumette); the GHU Paris Psychiatrie & Neurosciences, Paris, France (Chaumette); the Department of Human Genetics, McGill University, Montréal, Que. (Fageera, Joober); the Department of Educational and Counselling Psychology, McGill University, Montréal, Que. (Ter-Stepanian); the Département de Psychoéducation, Université de Sherbrooke, Que. (Ter-Stepanian); the Department of Decision Sciences, HEC Montreal, Montréal, Que. (Labbe); the Department of Neurology and Neurosurgery, McGill University, Montréal, Que. (Joober)
| | - Marina Ter-Stepanian
- From the Douglas Mental Health University Institute, Montréal, Que. (Chaumette, Grizenko, Fageerat, Fortier, Ter-Stepanian, Joober); the Department of Psychiatry, McGill University, Montréal, Que. (Chaumette, Grizenko, Joober); The Neuro, McGill University, Montréal, Que. (Chaumette); the Université Paris Cité, INSERM U1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France (Chaumette); the GHU Paris Psychiatrie & Neurosciences, Paris, France (Chaumette); the Department of Human Genetics, McGill University, Montréal, Que. (Fageera, Joober); the Department of Educational and Counselling Psychology, McGill University, Montréal, Que. (Ter-Stepanian); the Département de Psychoéducation, Université de Sherbrooke, Que. (Ter-Stepanian); the Department of Decision Sciences, HEC Montreal, Montréal, Que. (Labbe); the Department of Neurology and Neurosurgery, McGill University, Montréal, Que. (Joober)
| | - Aurelie Labbe
- From the Douglas Mental Health University Institute, Montréal, Que. (Chaumette, Grizenko, Fageerat, Fortier, Ter-Stepanian, Joober); the Department of Psychiatry, McGill University, Montréal, Que. (Chaumette, Grizenko, Joober); The Neuro, McGill University, Montréal, Que. (Chaumette); the Université Paris Cité, INSERM U1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France (Chaumette); the GHU Paris Psychiatrie & Neurosciences, Paris, France (Chaumette); the Department of Human Genetics, McGill University, Montréal, Que. (Fageera, Joober); the Department of Educational and Counselling Psychology, McGill University, Montréal, Que. (Ter-Stepanian); the Département de Psychoéducation, Université de Sherbrooke, Que. (Ter-Stepanian); the Department of Decision Sciences, HEC Montreal, Montréal, Que. (Labbe); the Department of Neurology and Neurosurgery, McGill University, Montréal, Que. (Joober)
| | - Ridha Joober
- From the Douglas Mental Health University Institute, Montréal, Que. (Chaumette, Grizenko, Fageerat, Fortier, Ter-Stepanian, Joober); the Department of Psychiatry, McGill University, Montréal, Que. (Chaumette, Grizenko, Joober); The Neuro, McGill University, Montréal, Que. (Chaumette); the Université Paris Cité, INSERM U1266, Institute of Psychiatry and Neuroscience of Paris, Paris, France (Chaumette); the GHU Paris Psychiatrie & Neurosciences, Paris, France (Chaumette); the Department of Human Genetics, McGill University, Montréal, Que. (Fageera, Joober); the Department of Educational and Counselling Psychology, McGill University, Montréal, Que. (Ter-Stepanian); the Département de Psychoéducation, Université de Sherbrooke, Que. (Ter-Stepanian); the Department of Decision Sciences, HEC Montreal, Montréal, Que. (Labbe); the Department of Neurology and Neurosurgery, McGill University, Montréal, Que. (Joober)
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11
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Miao M, Lyu M, Zhong C, Liu Y. Correlation Between MMP9 Promoter Methylation and Transient Ischemic Attack/Mild Ischemic Stroke with Early Cognitive Impairment. Clin Interv Aging 2023; 18:1221-1232. [PMID: 37547382 PMCID: PMC10404041 DOI: 10.2147/cia.s421830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Accepted: 07/22/2023] [Indexed: 08/08/2023] Open
Abstract
Background/Objective Dyskinesia caused by transient ischemic attack (TIA) and mild ischemic stroke (MIS) is mild and short-lived; however, cognitive impairment (CI) can occur in the acute phase and be easily overlooked. DNA methylation is an epigenetic phenomenon that can affect gene expression through gene silencing. Blood levels of matrix metalloproteinase (MMP) 9 are elevated in ischemic stroke patients and is associated with the destruction of the blood-brain barrier and the occurrence of CI. No studies have investigated the relationship between MMP9 gene methylation and TIA/MIS with early cognitive impairment (ECI). As such, the purpose of the present study was to investigate the correlation between MMP9 gene methylation and TIA/MIS with ECI. Methods Data from 112 subjects were collected, including 84 with TIA/MIS (National Institutes of Health Stroke Scale <5 points) and 28 non-stroke control subjects. Patients were evaluated within 7 days of TIA/MIS onset according to four single-domain cognitive scales. Whole blood DNA methylation was detected using MethylTarget sequencing technology. Comparison of MMP9 gene methylation levels among subgroups was performed using statistical methods. Results The site S33-79 in the TIA/MIS group was hypomethylated compared with the control group, and sites S33-25 and S33-30 in TIA/MIS with ECI was hypomethylated compared with TIA/MIS without ECI. Compared with the small artery occlusion group, MMP9 gene, S33-25, 30, 39, 53, 58, 73, 79, 113 and 131 sites in the large artery atherosclerosis group were hypomethylated. Conclusion MMP9 gene hypomethylation sites were associated with TIA/MIS and TIA/MIS with ECI, and there was a strong correlation between MMP9 gene hypomethylation and atherosclerotic TIA/MIS. MMP9 gene methylation can reflect the severity of TIA/MIS. MMP9 gene hypomethylation sites may be used as potential biomarkers and therapeutic targets for TIA/MIS and TIA/MIS with ECI.
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Affiliation(s)
- Meng Miao
- Department of Neurology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, People’s Republic of China
| | - Mingyang Lyu
- Haihe Laboratory of Cell Ecosystem, Tianjin, People’s Republic of China
| | - Chi Zhong
- Department of Neurology, Qilu Hospital (Qingdao), Cheeloo College of Medicine, Shandong University, Qingdao, Shandong, People’s Republic of China
| | - Ying Liu
- Department of Neurology, Qilu Hospital of Shandong University, Jinan, Shandong, People’s Republic of China
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12
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Olstad EW, Nordeng HME, Sandve GK, Lyle R, Gervin K. Effects of prenatal exposure to (es)citalopram and maternal depression during pregnancy on DNA methylation and child neurodevelopment. Transl Psychiatry 2023; 13:149. [PMID: 37147306 PMCID: PMC10163054 DOI: 10.1038/s41398-023-02441-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/07/2023] Open
Abstract
Studies assessing associations between prenatal exposure to antidepressants, maternal depression, and offspring DNA methylation (DNAm) have been inconsistent. Here, we investigated whether prenatal exposure to citalopram or escitalopram ((es)citalopram) and maternal depression is associated with differences in DNAm. Then, we examined if there is an interaction effect of (es)citalopram exposure and DNAm on offspring neurodevelopmental outcomes. Finally, we investigated whether DNAm at birth correlates with neurodevelopmental trajectories in childhood. We analyzed DNAm in cord blood from the Norwegian Mother, Father and Child Cohort Study (MoBa) biobank. MoBa contains questionnaire data on maternal (es)citalopram use and depression during pregnancy and information about child neurodevelopmental outcomes assessed by internationally recognized psychometric tests. In addition, we retrieved ADHD diagnoses from the Norwegian Patient Registry and information on pregnancies from the Medical Birth Registry of Norway. In total, 958 newborn cord blood samples were divided into three groups: (1) prenatal (es)citalopram exposed (n = 306), (2) prenatal maternal depression exposed (n = 308), and (3) propensity score-selected controls (n = 344). Among children exposed to (es)citalopram, there were more ADHD diagnoses and symptoms and delayed communication and psychomotor development. We did not identify differential DNAm associated with (es)citalopram or depression, nor any interaction effects on neurodevelopmental outcomes throughout childhood. Trajectory modeling identified subgroups of children following similar developmental patterns. Some of these subgroups were enriched for children exposed to maternal depression, and some subgroups were associated with differences in DNAm at birth. Interestingly, several of the differentially methylated genes are involved in neuronal processes and development. These results suggest DNAm as a potential predictive molecular marker of later abnormal neurodevelopmental outcomes, but we cannot conclude whether DNAm links prenatal (es)citalopram exposure or maternal depression with child neurodevelopmental outcomes.
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Affiliation(s)
- Emilie Willoch Olstad
- Pharmacoepidemiology and Drug Safety Research Group, Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway.
- PharmaTox Strategic Research Initiative, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway.
- UiO:RealArt Convergence Environment, University of Oslo, Oslo, Norway.
| | - Hedvig Marie Egeland Nordeng
- Pharmacoepidemiology and Drug Safety Research Group, Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
- PharmaTox Strategic Research Initiative, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
- UiO:RealArt Convergence Environment, University of Oslo, Oslo, Norway
- Department of Child Health and Development, Norwegian Institute of Public Health, Oslo, Norway
| | - Geir Kjetil Sandve
- PharmaTox Strategic Research Initiative, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
- UiO:RealArt Convergence Environment, University of Oslo, Oslo, Norway
- Department of Informatics, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
| | - Robert Lyle
- PharmaTox Strategic Research Initiative, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
- Department of Medical Genetics, Oslo University Hospital and University of Oslo, Oslo, Norway
- Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
| | - Kristina Gervin
- Pharmacoepidemiology and Drug Safety Research Group, Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
- PharmaTox Strategic Research Initiative, Faculty of Mathematics and Natural Sciences, University of Oslo, Oslo, Norway
- UiO:RealArt Convergence Environment, University of Oslo, Oslo, Norway
- Department of Research and Innovation, Division of Clinical Neuroscience, Oslo University Hospital, Oslo, Norway
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13
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Ago Y, Van C, Condro MC, Hrncir H, Diep AL, Rajbhandari AK, Fanselow MS, Hashimoto H, MacKenzie-Graham AJ, Waschek JA. Overexpression of VIPR2 in mice results in microencephaly with paradoxical increased white matter volume. Exp Neurol 2023; 362:114339. [PMID: 36717013 DOI: 10.1016/j.expneurol.2023.114339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 01/10/2023] [Accepted: 01/24/2023] [Indexed: 01/28/2023]
Abstract
Large scale studies in populations of European and Han Chinese ancestry found a series of rare gain-of-function microduplications in VIPR2, encoding VPAC2, a receptor that binds vasoactive intestinal peptide and pituitary adenylate cyclase-activating polypeptide with high affinity, that were associated with an up to 13-fold increased risk for schizophrenia. To address how VPAC2 receptor overactivity might affect brain development, we used a well-characterized Nestin-Cre mouse strain and a knock-in approach to overexpress human VPAC2 in the central nervous system. Mice that overexpressed VPAC2 were found to exhibit a significant reduction in brain weight. Magnetic resonance imaging analysis confirmed a decrease in brain size, a specific reduction in the hippocampus grey matter volume and a paradoxical increase in whole-brain white matter volume. Sex-specific changes in behavior such as impaired prepulse inhibition and contextual fear memory were observed in VPAC2 overexpressing mice. The data indicate that the VPAC2 receptor may play a critical role in brain morphogenesis and suggest that overactive VPAC2 signaling during development plays a mechanistic role in some forms of schizophrenia.
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Affiliation(s)
- Yukio Ago
- Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; Laboratory of Molecular Neuropharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan; Department of Cellular and Molecular Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Hiroshima 734-8553, Japan.
| | - Christina Van
- Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; Molecular Biology Interdepartmental Doctoral Program, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Michael C Condro
- Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; Department of Molecular and Medical Pharmacology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Haley Hrncir
- Ahmanson-Lovelace Brain Mapping Center, Department of Neurology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Anna L Diep
- Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Abha K Rajbhandari
- Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; Department of Psychology, Brain Research Institute, University of California Los Angeles, Los Angeles, CA 90095, USA; Staglin Center for Brain and Behavioral Health, University of California Los Angeles, Los Angeles, CA 90095, USA; Departments of Psychiatry and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Michael S Fanselow
- Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA; Department of Psychology, Brain Research Institute, University of California Los Angeles, Los Angeles, CA 90095, USA; Staglin Center for Brain and Behavioral Health, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Hitoshi Hashimoto
- Laboratory of Molecular Neuropharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan; Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Kanazawa University, Hamamatsu University School of Medicine, Chiba University and University of Fukui, Suita, Osaka 565-0871, Japan; Division of Bioscience, Institute for Datability Science, Osaka University, Suita, Osaka 565-0871, Japan; Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Osaka 565-0871, Japan; Department of Molecular Pharmaceutical Science, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Allan J MacKenzie-Graham
- Ahmanson-Lovelace Brain Mapping Center, Department of Neurology, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - James A Waschek
- Semel Institute for Neuroscience and Human Behavior, Department of Psychiatry and Biobehavioral Sciences, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA.
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14
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Choi YJ, Cho J, Hong YC, Lee DW, Moon S, Park SJ, Lee KS, Shin CH, Lee YA, Kim BN, Kaminsky Z, Kim JI, Lim YH. DNA methylation is associated with prenatal exposure to sulfur dioxide and childhood attention-deficit hyperactivity disorder symptoms. Sci Rep 2023; 13:3501. [PMID: 36859453 PMCID: PMC9977725 DOI: 10.1038/s41598-023-29843-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 02/10/2023] [Indexed: 03/03/2023] Open
Abstract
Epigenetic influence plays a role in the association between exposure to air pollution and attention deficit hyperactivity disorder (ADHD); however, research regarding sulfur dioxide (SO2) is scarce. Herein, we investigate the associations between prenatal SO2 exposure and ADHD rating scale (ARS) at ages 4, 6 and 8 years repeatedly in a mother-child cohort (n = 329). Whole blood samples were obtained at ages 2 and 6 years, and genome-wide DNA methylation (DNAm) was analyzed for 51 children using the Illumina Infinium HumanMethylation BeadChip. We analyzed the associations between prenatal SO2 exposure and DNAm levels at ages 2 and 6, and further investigated the association between the DNAm and ARS at ages 4, 6 and 8. Prenatal SO2 exposure was associated with ADHD symptoms. From candidate gene analysis, DNAm levels at the 6 CpGs at age 2 were associated with prenatal SO2 exposure levels. Of the 6 CpGs, cg07583420 (INS-IGF2) was persistently linked with ARS at ages 4, 6 and 8. Epigenome-wide analysis showed that DNAm at 6733 CpG sites were associated with prenatal SO2 exposure, of which 58 CpGs involved in Notch signalling pathway were further associated with ARS at age 4, 6 and 8 years, persistently. DNAm at age 6 was not associated with prenatal SO2 exposure. Changes in DNAm levels associated with prenatal SO2 exposure during early childhood are associated with increases in ARS in later childhood.
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Affiliation(s)
- Yoon-Jung Choi
- National Cancer Center Graduate School of Cancer Science and Policy, Goyang, Republic of Korea.,Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.,Environmental Health Center, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Jinwoo Cho
- Department of Statistics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Yun-Chul Hong
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.,Environmental Health Center, Seoul National University College of Medicine, Seoul, Republic of Korea.,Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul, Republic of Korea
| | - Dong-Wook Lee
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.,Environmental Health Center, Seoul National University College of Medicine, Seoul, Republic of Korea.,Public Healthcare Center, Seoul National University Hospital, Seoul, Republic of Korea
| | - Sungji Moon
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Soo Jin Park
- Department of Surgery, Wonkwang University Sanbon Hospital, Gunpo, Republic of Korea
| | - Kyung-Shin Lee
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea.,Environmental Health Center, Seoul National University College of Medicine, Seoul, Republic of Korea.,Public Health Research Institute, National Medical Center, Seoul, Republic of Korea
| | - Choong Ho Shin
- Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Young Ah Lee
- Department of Pediatrics, Seoul National University College of Medicine, Seoul National University Children's Hospital, Seoul, Republic of Korea
| | - Bung-Nyun Kim
- Division of Children and Adolescent Psychiatry, Department of Psychiatry, Seoul National University Hospital, Seoul, Republic of Korea
| | - Zachary Kaminsky
- Institute of Mental Health Research, University of Ottawa, Ottawa, Canada.,Department of Cellular and Molecular Medicine, University of Ottawa, Ottawa, Canada.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, USA
| | - Johanna Inhyang Kim
- Department of Psychiatry, Hanyang University Medical Center, 222-1 Wangsimni-Ro, Seongdong-Gu, Seoul, 04763, Republic of Korea.
| | - Youn-Hee Lim
- Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea. .,Section of Environmental Epidemiology, Department of Public Health, University of Copenhagen, Østerster Farimagsgade 5, 1014, København K, Copenhagen, Denmark.
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15
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Garcia-Argibay M, Zhang-James Y, Cortese S, Lichtenstein P, Larsson H, Faraone SV. Predicting childhood and adolescent attention-deficit/hyperactivity disorder onset: a nationwide deep learning approach. Mol Psychiatry 2023; 28:1232-1239. [PMID: 36536075 PMCID: PMC10005952 DOI: 10.1038/s41380-022-01918-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 12/05/2022] [Accepted: 12/09/2022] [Indexed: 12/23/2022]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a heterogeneous disorder with a high degree of psychiatric and physical comorbidity, which complicates its diagnosis in childhood and adolescence. We analyzed registry data from 238,696 persons born and living in Sweden between 1995 and 1999. Several machine learning techniques were used to assess the ability of registry data to inform the diagnosis of ADHD in childhood and adolescence: logistic regression, random Forest, gradient boosting, XGBoost, penalized logistic regression, deep neural network (DNN), and ensemble models. The best fitting model was the DNN, achieving an area under the receiver operating characteristic curve of 0.75, 95% CI (0.74-0.76) and balanced accuracy of 0.69. At the 0.45 probability threshold, sensitivity was 71.66% and specificity was 65.0%. There was an overall agreement in the feature importance among all models (τ > .5). The top 5 features contributing to classification were having a parent with criminal convictions, male sex, having a relative with ADHD, number of academic subjects failed, and speech/learning disabilities. A DNN model predicting childhood and adolescent ADHD trained exclusively on Swedish register data achieved good discrimination. If replicated and validated in an external sample, and proven to be cost-effective, this model could be used to alert clinicians to individuals who ought to be screened for ADHD and to aid clinicians' decision-making with the goal of decreasing misdiagnoses. Further research is needed to validate results in different populations and to incorporate new predictors.
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Affiliation(s)
- Miguel Garcia-Argibay
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden. .,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.
| | - Yanli Zhang-James
- Departments of Psychiatry and of Neuroscience and Physiology, SUNY Upstate Medical University, Syracuse, NY, USA
| | - Samuele Cortese
- School of Psychology, University of Southampton, Southampton, UK.,Clinical and Experimental Sciences (CNS and Psychiatry), Faculty of Medicine, University of Southampton, Southampton, UK.,Solent NHS Trust, Southampton, UK.,Hassenfeld Children's Hospital at NYU Langone, New York University Child Study Center, New York City, New York, NY, USA.,Division of Psychiatry and Applied Psychology, School of Medicine, University of Nottingham, Nottingham, UK
| | - Paul Lichtenstein
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Henrik Larsson
- School of Medical Sciences, Faculty of Medicine and Health, Örebro University, Örebro, Sweden.,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Stephen V Faraone
- Departments of Psychiatry and of Neuroscience and Physiology, SUNY Upstate Medical University, Syracuse, NY, USA
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16
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da Silva BS, Grevet EH, Silva LCF, Ramos JKN, Rovaris DL, Bau CHD. An overview on neurobiology and therapeutics of attention-deficit/hyperactivity disorder. DISCOVER MENTAL HEALTH 2023; 3:2. [PMID: 37861876 PMCID: PMC10501041 DOI: 10.1007/s44192-022-00030-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 12/29/2022] [Indexed: 10/21/2023]
Abstract
Attention-Deficit/Hyperactivity Disorder (ADHD) is a prevalent psychiatric condition characterized by developmentally inappropriate symptoms of inattention and/or hyperactivity/impulsivity, which leads to impairments in the social, academic, and professional contexts. ADHD diagnosis relies solely on clinical assessment based on symptom evaluation and is sometimes challenging due to the substantial heterogeneity of the disorder in terms of clinical and pathophysiological aspects. Despite the difficulties imposed by the high complexity of ADHD etiology, the growing body of research and technological advances provide good perspectives for understanding the neurobiology of the disorder. Such knowledge is essential to refining diagnosis and identifying new therapeutic options to optimize treatment outcomes and associated impairments, leading to improvements in all domains of patient care. This review is intended to be an updated outline that addresses the etiological and neurobiological aspects of ADHD and its treatment, considering the impact of the "omics" era on disentangling the multifactorial architecture of ADHD.
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Affiliation(s)
- Bruna Santos da Silva
- ADHD and Developmental Psychiatry Programs, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
- Department of Genetics and Graduate Program in Genetics and Molecular Biology, Instituto de Biociências, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
- Department of Physiology and Biophysics, Instituto de Ciencias Biomedicas Universidade de Sao Paulo, São Paulo, Brazil
- Laboratory of Physiological Genomics of Mental Health (PhysioGen Lab), Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
| | - Eugenio Horacio Grevet
- ADHD and Developmental Psychiatry Programs, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
- Department of Psychiatry and Graduate Program in Psychiatry and Behavioral Sciences, Faculdade de Medicina, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - Luiza Carolina Fagundes Silva
- ADHD and Developmental Psychiatry Programs, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
- Department of Psychiatry and Graduate Program in Psychiatry and Behavioral Sciences, Faculdade de Medicina, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil
| | - João Kleber Neves Ramos
- Department of Physiology and Biophysics, Instituto de Ciencias Biomedicas Universidade de Sao Paulo, São Paulo, Brazil
- Laboratory of Physiological Genomics of Mental Health (PhysioGen Lab), Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
| | - Diego Luiz Rovaris
- Department of Physiology and Biophysics, Instituto de Ciencias Biomedicas Universidade de Sao Paulo, São Paulo, Brazil
- Laboratory of Physiological Genomics of Mental Health (PhysioGen Lab), Institute of Biomedical Sciences, University of Sao Paulo, São Paulo, Brazil
| | - Claiton Henrique Dotto Bau
- ADHD and Developmental Psychiatry Programs, Hospital de Clínicas de Porto Alegre, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
- Department of Genetics and Graduate Program in Genetics and Molecular Biology, Instituto de Biociências, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
- Department of Psychiatry and Graduate Program in Psychiatry and Behavioral Sciences, Faculdade de Medicina, Universidade Federal Do Rio Grande Do Sul, Porto Alegre, Brazil.
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Song M, Bai H, Zhang P, Zhou X, Ying B. Promising applications of human-derived saliva biomarker testing in clinical diagnostics. Int J Oral Sci 2023; 15:2. [PMID: 36596771 PMCID: PMC9810734 DOI: 10.1038/s41368-022-00209-w] [Citation(s) in RCA: 33] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 10/23/2022] [Accepted: 11/03/2022] [Indexed: 01/05/2023] Open
Abstract
Saliva testing is a vital method for clinical applications, for its noninvasive features, richness in substances, and the huge amount. Due to its direct anatomical connection with oral, digestive, and endocrine systems, clinical usage of saliva testing for these diseases is promising. Furthermore, for other diseases that seeming to have no correlations with saliva, such as neurodegenerative diseases and psychological diseases, researchers also reckon saliva informative. Tremendous papers are being produced in this field. Updated summaries of recent literature give newcomers a shortcut to have a grasp of this topic. Here, we focused on recent research about saliva biomarkers that are derived from humans, not from other organisms. The review mostly addresses the proceedings from 2016 to 2022, to shed light on the promising usage of saliva testing in clinical diagnostics. We recap the recent advances following the category of different types of biomarkers, such as intracellular DNA, RNA, proteins and intercellular exosomes, cell-free DNA, to give a comprehensive impression of saliva biomarker testing.
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Affiliation(s)
- Mengyuan Song
- grid.13291.380000 0001 0807 1581Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hao Bai
- grid.13291.380000 0001 0807 1581Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Ping Zhang
- grid.13291.380000 0001 0807 1581State Key Laboratory of Oral Diseases & Human Saliva Laboratory & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xuedong Zhou
- grid.13291.380000 0001 0807 1581State Key Laboratory of Oral Diseases & Human Saliva Laboratory & National Clinical Research Center for Oral Diseases & West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Binwu Ying
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu, China.
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18
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Yin J, Zhou J, Fang F, Yu S, Wang J, Yuan J, Zhou Z. Identification of VIPR2 rare and common variants in the Chinese Han population with schizophrenia. Front Mol Neurosci 2023; 16:1170708. [PMID: 37181653 PMCID: PMC10174236 DOI: 10.3389/fnmol.2023.1170708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 04/07/2023] [Indexed: 05/16/2023] Open
Abstract
Introduction Schizophrenia is a severe and chronic psychiatric disorder with hereditary risk up to 80% as previous studies indicated. Several researches have demonstrated a significant association between schizophrenia and microduplications that overlap the vasoactive intestinal peptide receptor 2 gene (VIPR2). Methods To further investigate potential causal VIPR2 gene variants, all exons and un-translated portions of the VIPR2 gene were sequenced using amplicon targeted resequencing in 1804 Chinese Han patients with schizophrenia and 996 healthy counterparts in the present study. Results Nineteen rare non-synonymous mutations and 1 frameshift deletion was identified for schizophrenia, among which 5 variants have never been reported so far. Frequencies of rare non-synonymous mutations were significantly different between the two groups. Specifically, the non-synonymous mutation rs78564798 (Pallele = 0.006) as well as two rare variations in the VIPR2 gene's introns (rs372544903, Pallele = 0.026 and a novel mutation, chr7:159034078, GRCh38, Pallele = 0.048) were significantly associated with schizophrenia. Discussion Our findings add new evidence that the functional and probable causative variants of VIPR2 gene may play an important role in susceptibility to schizophrenia. Further studies on validations of VIPR2's function in the etiology of schizophrenia are warranted.
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Affiliation(s)
- Jiajun Yin
- The Affiliated Wuxi Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, China
| | - Juan Zhou
- Shandong Cancer Hospital and Institute, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, Shandong, China
| | - Fang Fang
- The Affiliated Wuxi Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, China
| | - Shui Yu
- The Affiliated Wuxi Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, China
| | - Jun Wang
- The Affiliated Wuxi Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, China
| | - Jianmin Yuan
- The Affiliated Wuxi Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, China
- *Correspondence: Jianmin Yuan,
| | - Zhenhe Zhou
- The Affiliated Wuxi Mental Health Center of Jiangnan University, Wuxi Central Rehabilitation Hospital, Wuxi, China
- Zhenhe Zhou,
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19
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Azar N, Booij L. DNA methylation as a mediator in the association between prenatal maternal stress and child mental health outcomes: Current state of knowledge. J Affect Disord 2022; 319:142-163. [PMID: 36113690 DOI: 10.1016/j.jad.2022.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/02/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
Abstract
BACKGROUND Prenatal maternal stress is increasingly recognized as a risk factor for offspring mental health challenges. DNA methylation may be a mechanism, but few studies directly tested mediation. These few integrative studies are reviewed along with studies from three research areas: prenatal maternal stress and child mental health, prenatal maternal stress and child DNA methylation, and child mental health and DNA methylation. METHODS We conducted a narrative review of articles in each research area and the few published integrative studies to evaluate the state of knowledge. RESULTS Prenatal maternal stress was related to greater offspring internalizing and externalizing symptoms and to greater offspring peripheral DNA methylation of the NR3C1 gene. Youth mental health problems were also related to NR3C1 hypermethylation while epigenome-wide studies identified genes involved in nervous system development. Integrative studies focused on infant outcomes and did not detect significant mediation by DNA methylation though methodological considerations may partially explain these null results. LIMITATIONS Operationalization of prenatal maternal stress and child mental health varied greatly. The few published integrative studies did not report conclusive evidence of mediation by DNA methylation. CONCLUSIONS DNA methylation likely mediates the association between prenatal maternal stress and child mental health. This conclusion still needs to be tested in a larger number of integrative studies. Key empirical and statistical considerations for future research are discussed. Understanding the consequences of prenatal maternal stress and its pathways of influence will help prevention and intervention efforts and ultimately promote well-being for both mothers and children.
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Affiliation(s)
- Naomi Azar
- Department of Psychology, Concordia University, 7141 Sherbrooke Street West, Montreal, Quebec H4B 1R6, Canada; Sainte-Justine University Hospital Research Center, 3175 chemin de la Côte-Sainte-Catherine, Montreal, Quebec H3T 1C5, Canada
| | - Linda Booij
- Department of Psychology, Concordia University, 7141 Sherbrooke Street West, Montreal, Quebec H4B 1R6, Canada; Sainte-Justine University Hospital Research Center, 3175 chemin de la Côte-Sainte-Catherine, Montreal, Quebec H3T 1C5, Canada; Department of Psychiatry and Addictology, Faculty of Medicine, Pavillon Roger-Gaudry, Université de Montréal, P.O. Box 6128, succursale Centre-ville, Montréal, Québec H3C 3J7, Canada.
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20
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Cecil CAM, Nigg JT. Epigenetics and ADHD: Reflections on Current Knowledge, Research Priorities and Translational Potential. Mol Diagn Ther 2022; 26:581-606. [PMID: 35933504 PMCID: PMC7613776 DOI: 10.1007/s40291-022-00609-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/20/2022] [Indexed: 12/30/2022]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a common and debilitating neurodevelopmental disorder influenced by both genetic and environmental factors, typically identified in the school-age years but hypothesized to have developmental origins beginning in utero. To improve current strategies for prediction, prevention and treatment, a central challenge is to delineate how, at a molecular level, genetic and environmental influences jointly shape ADHD risk, phenotypic presentation, and developmental course. Epigenetic processes that regulate gene expression, such as DNA methylation, have emerged as a promising molecular system in the search for both biomarkers and mechanisms to address this challenge. In this Current Opinion, we discuss the relevance of epigenetics (specifically DNA methylation) for ADHD research and clinical practice, starting with the current state of knowledge, what challenges we have yet to overcome, and what the future may hold in terms of methylation-based applications for personalized medicine in ADHD. We conclude that the field of epigenetics and ADHD is promising but is still in its infancy, and the potential for transformative translational applications remains a distant goal. Nevertheless, rapid methodological advances, together with the rise of collaborative science and increased availability of high-quality, longitudinal data make this a thriving research area that in future may contribute to the development of new tools for improved prediction, management, and treatment of ADHD.
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Affiliation(s)
- Charlotte A M Cecil
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus MC-Sophia, Rotterdam, The Netherlands.
- Department of Epidemiology, Erasmus MC, Rotterdam, The Netherlands.
- Molecular Epidemiology, Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands.
| | - Joel T Nigg
- Division of Psychology, Department of Psychiatry, Oregon Health and Science University, Portland, OR, USA
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21
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Lin J, Yang S, Wang C, Yu E, Zhu Z, Shi J, Li X, Xin J, Chen X, Pan X. Prediction of Alzheimer’s Disease Using Patterns of Methylation Levels in Key Immunologic-Related Genes. J Alzheimers Dis 2022; 90:783-794. [DOI: 10.3233/jad-220701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: DNA methylation is expected to become a kind of new diagnosis and treatment method of Alzheimer’s disease (AD). Neuroinflammation- and immune-related pathways represent one of the major genetic risk factors for AD. Objective: We aimed to investigate DNA methylation levels of 7 key immunologic-related genes in peripheral blood and appraise their applicability in the diagnosis of AD. Methods: Methylation levels were obtained from 222 participants (101 AD, 72 MC, 49 non-cognitively impaired controls). Logistic regression models for diagnosing AD were established after least absolute shrinkage and selection operator (LASSO) and best subset selection (BSS), evaluated by respondent working curve and decision curve analysis for sensitivity. Results: Six differentially methylated positions (DMPs) in the MCI group and 64 in the AD group were found, respectively. Among them, there were 2 DMPs in the MCI group and 30 DMPs in the AD group independent of age, gender, and APOE4 carriers (p < 0.05). AD diagnostic prediction models differentiated AD from normal controls both in a training dataset (LASSO: 8 markers, including methylation levels at ABCA7_1040077, CNR1_88166293, CX3CR1_39322324, LRRK2_40618505, LRRK2_40618493, NGFR_49496745, TARDBP_11070956, TARDBP_11070840, area under the curve [AUC] = 0.81; BSS: 2 markers, including methylation levels at ABCA7_1040077 and CX3CR1_39322324, AUC = 0.80) and a testing dataset (AUC = 0.84, AUC = 0.82, respectively). Conclusion: Our work indicated that methylation levels of 7 key immunologic-related genes (ABCA7, CNR1, CX3CR1, CSF1 R, LRRK2, NGFR, and TARDBP) in peripheral blood was altered in AD and the models including methylation of immunologic-related genes biomarkers improved prediction of AD.
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Affiliation(s)
- Junhan Lin
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Siyu Yang
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Chao Wang
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Erhan Yu
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Zhibao Zhu
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Jinying Shi
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Xiang Li
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Jiawei Xin
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Xiaochun Chen
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
| | - Xiaodong Pan
- Department of Neurology, Center for Cognitive Neurology, Institute of Clinical Neurology, Fujian Institute of Geriatrics, Fujian Medical University Union Hospital, Fuzhou, China
- Fujian Key Laboratory of Molecular Neurology, Fujian Medical University, Fuzhou, China
- Key Laboratory of Brain Aging and Neurodegenerative Diseases, Fujian Medical University, Fuzhou, China
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22
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Cabana-Domínguez J, Soler Artigas M, Arribas L, Alemany S, Vilar-Ribó L, Llonga N, Fadeuilhe C, Corrales M, Richarte V, Ramos-Quiroga JA, Ribasés M. Comprehensive analysis of omics data identifies relevant gene networks for Attention-Deficit/Hyperactivity Disorder (ADHD). Transl Psychiatry 2022; 12:409. [PMID: 36153331 PMCID: PMC9509350 DOI: 10.1038/s41398-022-02182-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 09/08/2022] [Accepted: 09/13/2022] [Indexed: 11/23/2022] Open
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a highly prevalent neurodevelopmental disorder that results from the interaction of both genetic and environmental risk factors. Genome-wide association studies have started to identify multiple genetic risk loci associated with ADHD, however, the exact causal genes and biological mechanisms remain largely unknown. We performed a multi-step analysis to identify and characterize modules of co-expressed genes associated with ADHD using data from peripheral blood mononuclear cells of 270 ADHD cases and 279 controls. We identified seven ADHD-associated modules of co-expressed genes, some of them enriched in both genetic and epigenetic signatures for ADHD and in biological pathways relevant for psychiatric disorders, such as the regulation of gene expression, epigenetics and immune system. In addition, for some of the modules, we found evidence of potential regulatory mechanisms, including microRNAs and common genetic variants. In conclusion, our results point to promising genes and pathways for ADHD, supporting the use of peripheral blood to assess gene expression signatures in psychiatric disorders. Furthermore, they highlight that the combination of multi-omics signals provides deeper and broader insights into the biological mechanisms underlying ADHD.
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Affiliation(s)
- Judit Cabana-Domínguez
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain. .,Department of Mental Health, Hospital Universitari Vall d'Hebron, Barcelona, Spain. .,Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain. .,Department of Genetics, Microbiology, and Statistics, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain.
| | - María Soler Artigas
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain ,grid.469673.90000 0004 5901 7501Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain ,grid.5841.80000 0004 1937 0247Department of Genetics, Microbiology, and Statistics, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain
| | - Lorena Arribas
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain
| | - Silvia Alemany
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain
| | - Laura Vilar-Ribó
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain ,grid.469673.90000 0004 5901 7501Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain
| | - Natalia Llonga
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain
| | - Christian Fadeuilhe
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain ,grid.469673.90000 0004 5901 7501Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain ,grid.7080.f0000 0001 2296 0625Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Montse Corrales
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain ,grid.469673.90000 0004 5901 7501Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain ,grid.7080.f0000 0001 2296 0625Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Vanesa Richarte
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain ,grid.469673.90000 0004 5901 7501Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain ,grid.7080.f0000 0001 2296 0625Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Josep Antoni Ramos-Quiroga
- grid.7080.f0000 0001 2296 0625Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d’Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain ,grid.411083.f0000 0001 0675 8654Department of Mental Health, Hospital Universitari Vall d’Hebron, Barcelona, Spain ,grid.469673.90000 0004 5901 7501Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain ,grid.7080.f0000 0001 2296 0625Department of Psychiatry and Forensic Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Marta Ribasés
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain. .,Department of Mental Health, Hospital Universitari Vall d'Hebron, Barcelona, Spain. .,Biomedical Network Research Centre on Mental Health (CIBERSAM), Madrid, Spain. .,Department of Genetics, Microbiology, and Statistics, Faculty of Biology, Universitat de Barcelona, Barcelona, Spain.
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23
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Silk T, Dipnall L, Wong YT, Craig JM. Epigenetics and ADHD. Curr Top Behav Neurosci 2022; 57:269-289. [PMID: 35505060 DOI: 10.1007/7854_2022_339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
There is robust evidence of genetic susceptibility to Attention-Deficit Hyperactivity Disorder (ADHD); however, there still remains significant variability that is not attributable to genetic factors. The emerging field of epigenetics is beginning to reveal how genotypic expression can be mediated by an array of variables including external environmental exposure, inter-individual developmental variation, and by the genome itself. Epigenetic modification plays a central role in neurobiological and developmental processes, and disturbances to these processes can have implications for a range of mental health problems. Although the field is still in its early days, this chapter will discuss the current standing of epigenetic research into ADHD. Firstly, key relevant epigenetic processes will be discussed. This will be followed by an overview of the key findings to date investigating the role of epigenetics in ADHD. Human studies have included the theory-driven approach of candidate-gene studies (CGS), as well as the increasingly popular exploratory approach of epigenome-wide association studies (EWAS). Overall, the findings are heterogeneous. However, it is possible that with more longitudinal studies and better characterised cohorts, both predictive and protective links between epigenetic processes and ADHD will be revealed.
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Affiliation(s)
- Timothy Silk
- Centre for Social and Early Emotional Development and School of Psychology, Deakin University, Geelong, VIC, Australia. .,Murdoch Children's Research Institute, Parkville, VIC, Australia.
| | - Lillian Dipnall
- Centre for Social and Early Emotional Development and School of Psychology, Deakin University, Geelong, VIC, Australia
| | - Yen Ting Wong
- Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Deakin University, Geelong, VIC, Australia
| | - Jeffrey M Craig
- Murdoch Children's Research Institute, Parkville, VIC, Australia.,Institute for Mental and Physical Health and Clinical Translation (IMPACT), School of Medicine, Deakin University, Geelong, VIC, Australia
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24
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Peedicayil J. The Role of Epigenetics in the Pathogenesis and Potential Treatment of Attention Deficit Hyperactivity Disorder. Curr Neuropharmacol 2022; 20:1642-1650. [PMID: 34544344 PMCID: PMC9881064 DOI: 10.2174/1570159x19666210920091036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 09/09/2021] [Accepted: 09/14/2021] [Indexed: 11/22/2022] Open
Abstract
There is increasing evidence that dysregulated epigenetic mechanisms of gene expression are involved in the pathogenesis of attention deficit hyperactivity disorder (ADHD). This review presents a comprehensive summary of the current state of research on the role of epigenetics in the pathogenesis of ADHD. The potential role of epigenetic drugs in the treatment of ADHD is also reviewed. Several studies suggest that there are epigenetic abnormalities in preclinical models of ADHD and in ADHD patients. Regarding DNA methylation, many studies have reported DNA hypermethylation. There is evidence that there is increased histone deacetylation in ADHD patients. Abnormalities in the expression of microRNAs (miRNAs) in ADHD patients have also been found. Some currently used drugs for treating ADHD, in addition to their more well-established mechanisms of action, have been shown to alter epigenetic mechanisms of gene expression. Clinical trials of epigenetic drugs in patients with ADHD report favorable results. These data suggest that abnormal epigenetic mechanisms of gene expression may be involved in the pathogenesis of ADHD. Drugs acting on epigenetic mechanisms may be a potential new class of drugs for treating ADHD.
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Affiliation(s)
- Jacob Peedicayil
- Department of Pharmacology and Clinical Pharmacology, Christian Medical College, Vellore, India,Address correspondence to this author at the Department of Pharmacology and Clinical Pharmacology, Christian Medical College, Vellore, India;Tel: 91-0416-2284237; E-mail:
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Hohmann S, Häge A, Millenet S, Banaschewski T. [The Genetic Basis of ADHD - An Update]. ZEITSCHRIFT FUR KINDER-UND JUGENDPSYCHIATRIE UND PSYCHOTHERAPIE 2022; 50:203-217. [PMID: 35514173 DOI: 10.1024/1422-4917/a000868] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The Genetic Basis of ADHD - An Update Abstract. Genetic risks play an important role in the etiology of attention-deficit/hyperactivity disorder (ADHD). This review presents the current state of knowledge concerning the genetic basis of the disorder. It discusses the results of twin- and family-based studies, linkage and association studies as well as recent findings resulting from Genome Wide Association Studies (GWAS). Furthermore, it elaborates on the relevance of polygenic risk scores, rare variants, and epigenetic alterations, especially in light of findings on genetic pleiotropy in the context of frequent psychiatric comorbidities in patients with ADHD.
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Affiliation(s)
- Sarah Hohmann
- Klinik für Psychiatrie und Psychotherapie des Kindes- und Jugendalters, Zentralinstitut für Seelische Gesundheit, Medizinische Fakultät Mannheim der Universität Heidelberg, Mannheim, Deutschland
| | - Alexander Häge
- Klinik für Psychiatrie und Psychotherapie des Kindes- und Jugendalters, Zentralinstitut für Seelische Gesundheit, Medizinische Fakultät Mannheim der Universität Heidelberg, Mannheim, Deutschland
| | - Sabina Millenet
- Klinik für Psychiatrie und Psychotherapie des Kindes- und Jugendalters, Zentralinstitut für Seelische Gesundheit, Medizinische Fakultät Mannheim der Universität Heidelberg, Mannheim, Deutschland
| | - Tobias Banaschewski
- Klinik für Psychiatrie und Psychotherapie des Kindes- und Jugendalters, Zentralinstitut für Seelische Gesundheit, Medizinische Fakultät Mannheim der Universität Heidelberg, Mannheim, Deutschland
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26
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Liu JJ, Liu L, Mu HH, Li JY, Xu L, Wu YY, Li BX, Zhang Y, Zhang XY, Ye XW, Zhang C. Transfer of Invitro CD4 + T Cells with Hypomethylation of Perforin Promoter into Rats' Abdomens Causes Autoimmune Emphysema. COPD 2022; 19:255-261. [PMID: 35604834 DOI: 10.1080/15412555.2022.2072720] [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: 10/18/2022]
Abstract
Our previous study suggested that hypomethylation of perforin promoter of CD4 + T cells might be involved in the pathogenesis of autoimmune emphysema of rats. Whether transfer of this kind of cells hypomethylated in vitro into naive immunocompetent rats also results in emphysema is unknown yet. To test the hypothesis above, thirty Sprague Dawley (SD) rats were randomly divided into three groups: a model group (n = 10), a normal control group (n = 10) and a sham operation group (n = 10). In the model group, spleen-derived CD4 + T cells of normal rats were treated with 5-azacytidine (5-Aza), complete Freund's adjuvant and Phosphate Buffered Saline (PBS), then transferred into naive immunocompetent rats. The normal control group was injected with CD4 + T lymphocytes from spleens of normal rats and the same amount of adjuvant and PBS as above. In sham operation group, normal rats were injected intraperitoneally with complete Freund's adjuvant and PBS. Histopathological evaluations (mean linear Intercept (MLI) and mean alveolar numbers (MAN)), anti-endothelial cell antibodies (AECA) in serum and bronchoalveolar lavage fluid (BALF), lung vascular endothelial growth factor (VEGF)), the apoptotic index (AI) of alveolar septal cells and the methylation levels of perforin promoter of CD4 + T cells were investigated. The levels of the methylation above and MAN were lower in the model group than in the control and the sham operation group, while the AECA in serum and BALF, VEGF, MLI and the AI were greater (all p < 0.05). The methylation levels of perforin promoter were positively correlated with the MAN (r = 0.747, p < 0.05) and negatively correlated with AI, AECA, MLI, and VEGF (r was -0.789, -0.746, -0.743, -0.660, respectively, all p < 0.05). This study suggests that transfer of invitro CD4 + T cells with hypomethylation of perforin promoter into rats causes autoimmune emphysema, possibly by increasing expression of VEGF and promoting alveolar septal cell apoptosis.
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Affiliation(s)
- Jia-Jia Liu
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China.,Department of Respiratory Medicine, The First People's Hospital of Liangshan Yi Autonomous Prefecture, Xichang, Sichuan, China
| | - Lin Liu
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Hong-Hong Mu
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Jia-Yi Li
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Lin Xu
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Yao-Yao Wu
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Ben-Xue Li
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Ye Zhang
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Xiang-Yan Zhang
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Xian-Wei Ye
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
| | - Cheng Zhang
- Department of Respiratory Medicine, Guizhou Provincial People's Hospital, Guiyang, Guizhou, China
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Sakamoto K, Chen L, Miyaoka T, Yamada M, Masutani T, Ishimoto K, Hino N, Nakagawa S, Asano S, Ago Y. Generation of KS-133 as a Novel Bicyclic Peptide with a Potent and Selective VIPR2 Antagonist Activity that Counteracts Cognitive Decline in a Mouse Model of Psychiatric Disorders. Front Pharmacol 2021; 12:751587. [PMID: 34819858 PMCID: PMC8607231 DOI: 10.3389/fphar.2021.751587] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2021] [Accepted: 10/11/2021] [Indexed: 11/13/2022] Open
Abstract
Worldwide, more than 20 million people suffer from schizophrenia, but effective and definitive new therapeutic drugs/treatments have not been established. Vasoactive intestinal peptide receptor 2 (VIPR2) might be an attractive drug target for the treatment of schizophrenia because both preclinical and clinical studies have demonstrated a strong link between high expression/overactivation of VIPR2 and schizophrenia. Nevertheless, VIPR2-targeting drugs are not yet available. VIPR2 is a class-B G protein-coupled receptor that possesses high structural homology to its subtypes, vasoactive intestinal peptide receptor 1 (VIPR1) and pituitary adenylate cyclase-activating polypeptide type-1 receptor (PAC1). These biological and structural properties have made it difficult to discover small molecule drugs against VIPR2. In 2018, cyclic peptide VIpep-3, a VIPR2-selective antagonist, was reported. The aim of this study was to generate a VIpep-3 derivative for in vivo experiments. After amino acid substitution and structure optimization, we successfully generated KS-133 with 1) a VIPR2-selective and potent antagonistic activity, 2) at least 24 h of stability in plasma, and 3) in vivo pharmacological efficacies in a mouse model of psychiatric disorders through early postnatal activation of VIPR2. To the best of our knowledge, this is the first report of a VIPR2-selective antagonistic peptide that counteracts cognitive decline, a central feature of schizophrenia. KS-133 may contribute to studies and development of novel schizophrenia therapeutic drugs that target VIPR2.
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Affiliation(s)
- Kotaro Sakamoto
- Research and Development Department, Ichimaru Pharcos Company Limited, Gifu, Japan
| | - Lu Chen
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Tatsunori Miyaoka
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Mei Yamada
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Teruaki Masutani
- Research and Development Department, Ichimaru Pharcos Company Limited, Gifu, Japan
| | - Kenji Ishimoto
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Laboratory of Innovative Food Science, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Global Center for Medical Engineering and Informatics, Osaka University, Osaka, Japan
| | - Nobumasa Hino
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan
| | - Shinsaku Nakagawa
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Laboratory of Innovative Food Science, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Global Center for Medical Engineering and Informatics, Osaka University, Osaka, Japan
| | - Satoshi Asano
- Department of Cellular and Molecular Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Yukio Ago
- Laboratory of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Laboratory of Innovative Food Science, Graduate School of Pharmaceutical Sciences, Osaka University, Osaka, Japan.,Global Center for Medical Engineering and Informatics, Osaka University, Osaka, Japan.,Department of Cellular and Molecular Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
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28
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Shirvani-Farsani Z, Maloum Z, Bagheri-Hosseinabadi Z, Vilor-Tejedor N, Sadeghi I. DNA methylation signature as a biomarker of major neuropsychiatric disorders. J Psychiatr Res 2021; 141:34-49. [PMID: 34171761 DOI: 10.1016/j.jpsychires.2021.06.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 05/27/2021] [Accepted: 06/09/2021] [Indexed: 02/07/2023]
Abstract
DNA methylation is a broadly-investigated epigenetic modification that has been considered as a heritable and reversible change. Previous findings have indicated that DNA methylation regulates gene expression in the central nervous system (CNS). Also, disturbance of DNA methylation patterns has been associated with destructive consequences that lead to human brain diseases such as neuropsychiatric disorders (NPDs). In this review, we comprehensively discuss the mechanism and function of DNA methylation and its most recent associations with the pathology of NPDs-including major depressive disorder (MDD), schizophrenia (SZ), autism spectrum disorder (ASD), bipolar disorder (BD), and attention/deficit hyperactivity disorder (ADHD). We also discuss how heterogeneous findings demand further investigations. Finally, based on the recent studies we conclude that DNA methylation status may have implications in clinical diagnostics and therapeutics as a potential epigenetic biomarker of NPDs.
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Affiliation(s)
- Zeinab Shirvani-Farsani
- Department of Cell and Molecular Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University G.C., Tehran, IR, Iran.
| | - Zahra Maloum
- Department of Cell and Molecular Biology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University G.C., Tehran, IR, Iran.
| | - Zahra Bagheri-Hosseinabadi
- Department of Clinical Biochemistry, School of Medicine, Rafsanjan University of Medical Sciences, Rafsanjan, Iran.
| | - Natalia Vilor-Tejedor
- BarcelonaBeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Carrer Wellington 30, 08005, Barcelona, Spain; Center for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Barcelona, Spain; Erasmus University Medical Center, Department of Clinical Genetics, Rotterdam, the Netherlands; Pompeu Fabra University, Barcelona, Spain.
| | - Iman Sadeghi
- BarcelonaBeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Carrer Wellington 30, 08005, Barcelona, Spain; Center for Genomic Regulation (CRG), The Barcelona Institute for Science and Technology, Barcelona, Spain.
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30
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Ago Y, Asano S, Hashimoto H, Waschek JA. Probing the VIPR2 Microduplication Linkage to Schizophrenia in Animal and Cellular Models. Front Neurosci 2021; 15:717490. [PMID: 34366784 PMCID: PMC8339898 DOI: 10.3389/fnins.2021.717490] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 07/05/2021] [Indexed: 01/30/2023] Open
Abstract
Pituitary adenylate cyclase-activating polypeptide (PACAP, gene name ADCYAP1) is a multifunctional neuropeptide involved in brain development and synaptic plasticity. With respect to PACAP function, most attention has been given to that mediated by its specific receptor PAC1 (ADCYAP1R1). However, PACAP also binds tightly to the high affinity receptors for vasoactive intestinal peptide (VIP, VIP), called VPAC1 and VPAC2 (VIPR1 and VIPR2, respectively). Depending on innervation patterns, PACAP can thus interact physiologically with any of these receptors. VPAC2 receptors, the focus of this review, are known to have a pivotal role in regulating circadian rhythms and to affect multiple other processes in the brain, including those involved in fear cognition. Accumulating evidence in human genetics indicates that microduplications at 7q36.3, containing VIPR2 gene, are linked to schizophrenia and possibly autism spectrum disorder. Although detailed molecular mechanisms have not been fully elucidated, recent studies in animal models suggest that overactivation of the VPAC2 receptor disrupts cortical circuit maturation. The VIPR2 linkage can thus be potentially explained by inappropriate control of receptor signaling at a time when neural circuits involved in cognition and social behavior are being established. Alternatively, or in addition, VPAC2 receptor overactivity may disrupt ongoing synaptic plasticity during processes of learning and memory. Finally, in vitro data indicate that PACAP and VIP have differential activities on the maturation of neurons via their distinct signaling pathways. Thus perturbations in the balance of VPAC2, VPAC1, and PAC1 receptors and their ligands may have important consequences in brain development and plasticity.
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Affiliation(s)
- Yukio Ago
- Department of Cellular and Molecular Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Satoshi Asano
- Department of Cellular and Molecular Pharmacology, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Hitoshi Hashimoto
- Laboratory of Molecular Neuropharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Japan.,Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Kanazawa University, Hamamatsu University School of Medicine, Chiba University and University of Fukui, Suita, Japan.,Division of Bioscience, Institute for Datability Science, Osaka University, Suita, Japan.,Open and Transdisciplinary Research Initiatives, Osaka University, Suita, Japan
| | - James A Waschek
- Department of Psychiatry and Biobehavioral Sciences, Semel Institute for Neuroscience and Human Behavior, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, United States
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Wang XH, Xu S, Zhou XY, Zhao R, Lin Y, Cao J, Zang WD, Tao H, Xu W, Li MQ, Zhao SM, Jin LP, Zhao JY. Low chorionic villous succinate accumulation associates with recurrent spontaneous abortion risk. Nat Commun 2021; 12:3428. [PMID: 34103526 PMCID: PMC8187647 DOI: 10.1038/s41467-021-23827-0] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Accepted: 05/19/2021] [Indexed: 01/12/2023] Open
Abstract
Dysregulated extravillous trophoblast invasion and proliferation are known to increase the risk of recurrent spontaneous abortion (RSA); however, the underlying mechanism remains unclear. Herein, in our retrospective observational case-control study we show that villous samples from RSA patients, compared to healthy controls, display reduced succinate dehydrogenase complex iron sulfur subunit (SDHB) DNA methylation, elevated SDHB expression, and reduced succinate levels, indicating that low succinate levels correlate with RSA. Moreover, we find high succinate levels in early pregnant women are correlated with successful embryo implantation. SDHB promoter methylation recruited MBD1 and excluded c-Fos, inactivating SDHB expression and causing intracellular succinate accumulation which mimicked hypoxia in extravillous trophoblasts cell lines JEG3 and HTR8 via the PHD2-VHL-HIF-1α pathway; however, low succinate levels reversed this effect and increased the risk of abortion in mouse model. This study reveals that abnormal metabolite levels inhibit extravillous trophoblast function and highlights an approach for RSA intervention.
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Affiliation(s)
- Xiao-Hui Wang
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
- Institute of Metabolism and Integrative Biology, State Key Lab of Genetic Engineering, School of Life Sciences, Obstetrics & Gynecology Hospital of Fudan University, Key Laboratory of Reproduction Regulation of NPFPC, and Zhongshan Hospital of Fudan University, Fudan University, Shanghai, China
| | - Sha Xu
- Institute of Metabolism and Integrative Biology, State Key Lab of Genetic Engineering, School of Life Sciences, Obstetrics & Gynecology Hospital of Fudan University, Key Laboratory of Reproduction Regulation of NPFPC, and Zhongshan Hospital of Fudan University, Fudan University, Shanghai, China
- Collaborative Innovation Center for Genetics and Development, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Xiang-Yu Zhou
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China
| | - Rui Zhao
- Institute of Metabolism and Integrative Biology, State Key Lab of Genetic Engineering, School of Life Sciences, Obstetrics & Gynecology Hospital of Fudan University, Key Laboratory of Reproduction Regulation of NPFPC, and Zhongshan Hospital of Fudan University, Fudan University, Shanghai, China
| | - Yan Lin
- Institute of Metabolism and Integrative Biology, State Key Lab of Genetic Engineering, School of Life Sciences, Obstetrics & Gynecology Hospital of Fudan University, Key Laboratory of Reproduction Regulation of NPFPC, and Zhongshan Hospital of Fudan University, Fudan University, Shanghai, China
- Collaborative Innovation Center for Genetics and Development, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Jing Cao
- Department of Anatomy and Neuroscience Research Institute, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Wei-Dong Zang
- Department of Anatomy and Neuroscience Research Institute, School of Basic Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Hui Tao
- Second Hospital of Anhui Medical University, Anhui Medical University, Hefei, China
| | - Wei Xu
- Institute of Metabolism and Integrative Biology, State Key Lab of Genetic Engineering, School of Life Sciences, Obstetrics & Gynecology Hospital of Fudan University, Key Laboratory of Reproduction Regulation of NPFPC, and Zhongshan Hospital of Fudan University, Fudan University, Shanghai, China
- Collaborative Innovation Center for Genetics and Development, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Ming-Qing Li
- Institute of Metabolism and Integrative Biology, State Key Lab of Genetic Engineering, School of Life Sciences, Obstetrics & Gynecology Hospital of Fudan University, Key Laboratory of Reproduction Regulation of NPFPC, and Zhongshan Hospital of Fudan University, Fudan University, Shanghai, China
| | - Shi-Min Zhao
- Institute of Metabolism and Integrative Biology, State Key Lab of Genetic Engineering, School of Life Sciences, Obstetrics & Gynecology Hospital of Fudan University, Key Laboratory of Reproduction Regulation of NPFPC, and Zhongshan Hospital of Fudan University, Fudan University, Shanghai, China
- Collaborative Innovation Center for Genetics and Development, Institutes of Biomedical Sciences, Fudan University, Shanghai, China
| | - Li-Ping Jin
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China.
| | - Jian-Yuan Zhao
- Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University School of Medicine, Shanghai, China.
- Institute of Metabolism and Integrative Biology, State Key Lab of Genetic Engineering, School of Life Sciences, Obstetrics & Gynecology Hospital of Fudan University, Key Laboratory of Reproduction Regulation of NPFPC, and Zhongshan Hospital of Fudan University, Fudan University, Shanghai, China.
- Collaborative Innovation Center for Genetics and Development, Institutes of Biomedical Sciences, Fudan University, Shanghai, China.
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Takahashi N, Ishizuka K, Inada T. Peripheral biomarkers of attention-deficit hyperactivity disorder: Current status and future perspective. J Psychiatr Res 2021; 137:465-470. [PMID: 33798973 DOI: 10.1016/j.jpsychires.2021.03.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2020] [Accepted: 03/08/2021] [Indexed: 01/28/2023]
Abstract
Attention-deficit hyperactivity disorder (ADHD) is one of the most common neurodevelopmental disorders, characterized by a persistent pattern of inattention, hyperactivity, and impulsivity. Since the diagnosis of ADHD is defined by operational diagnostic criteria consisting of several clinical symptoms, a number of heterogeneous mechanisms have been considered to be implicated in its pathophysiology. Although no clinically reliable biomarkers are available for the diagnosis of ADHD, several plausible candidate biomarkers have been proposed based on recent advances in biochemistry and molecular biology. This review article summarizes potential peripheral biomarkers associated with ADHD, mainly from recently published case-control studies. These include 1) biochemical markers: neurotransmitters and their receptors, neurotrophic factors, serum electrolytes, and inflammation markers; 2) genetic and epigenetic markers: microRNA, mRNA expression, and peripheral DNA methylation; 3) physiological markers: eye movement and electroencephalography. It also discusses the limitations and future directions of these potential biomarkers for application in clinical practice.
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Affiliation(s)
- Nagahide Takahashi
- Department of Child and Adolescent Psychiatry, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Aichi, Japan; Research Center for Child Mental Development, Hamamatsu University School of Medicine, Higashi-ku, Hamamatsu, 431-3192, Shizuoka, Japan
| | - Kanako Ishizuka
- Department of Child and Adolescent Psychiatry, Nagoya University Hospital, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8560, Aichi, Japan
| | - Toshiya Inada
- Department of Psychiatry and Psychobiology, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa-ku, Nagoya, 466-8550, Aichi, Japan.
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Miyake K, Miyashita C, Ikeda-Araki A, Miura R, Itoh S, Yamazaki K, Kobayashi S, Masuda H, Ooka T, Yamagata Z, Kishi R. DNA methylation of GFI1 as a mediator of the association between prenatal smoking exposure and ADHD symptoms at 6 years: the Hokkaido Study on Environment and Children's Health. Clin Epigenetics 2021; 13:74. [PMID: 33827680 PMCID: PMC8028116 DOI: 10.1186/s13148-021-01063-z] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Accepted: 03/25/2021] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Prenatal smoking exposure has been associated with childhood attention-deficit/hyperactivity disorder (ADHD). However, the mechanism underlying this relationship remains unclear. We assessed whether DNA methylation differences may mediate the association between prenatal smoking exposure and ADHD symptoms at the age of 6 years. RESULTS We selected 1150 mother-infant pairs from the Hokkaido Study on the Environment and Children's Health. Mothers were categorized into three groups according to plasma cotinine levels at the third trimester: non-smokers (≤ 0.21 ng/mL), passive smokers (0.21-11.48 ng/mL), and active smokers (≥ 11.49 ng/mL). The children's ADHD symptoms were determined by the ADHD-Rating Scale at the age of 6 years. Maternal active smoking during pregnancy was significantly associated with an increased risk of ADHD symptoms (odds ratio, 1.89; 95% confidence interval, 1.14-3.15) compared to non-smoking after adjusting for covariates. DNA methylation of the growth factor-independent 1 transcriptional repressor (GFI1) region, as determined by bisulfite next-generation sequencing of cord blood samples, mediated 48.4% of the total effect of the association between maternal active smoking during pregnancy and ADHD symptoms. DNA methylation patterns of other genes (aryl-hydrocarbon receptor repressor [AHRR], cytochrome P450 family 1 subfamily A member 1 [CYP1A1], estrogen receptor 1 [ESR1], and myosin IG [MYO1G]) regions did not exert a statistically significant mediation effect. CONCLUSIONS Our findings demonstrated that DNA methylation of GFI1 mediated the association between maternal active smoking during pregnancy and ADHD symptoms at the age of 6 years.
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Affiliation(s)
- Kunio Miyake
- Departments of Health Sciences, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan.
| | - Chihiro Miyashita
- Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan
| | - Atsuko Ikeda-Araki
- Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan
| | - Ryu Miura
- Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan
| | - Sachiko Itoh
- Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan
| | - Keiko Yamazaki
- Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan
| | - Sumitaka Kobayashi
- Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan
| | - Hideyuki Masuda
- Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan
| | - Tadao Ooka
- Departments of Health Sciences, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Zentaro Yamagata
- Departments of Health Sciences, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, 409-3898, Japan
| | - Reiko Kishi
- Center for Environmental and Health Sciences, Hokkaido University, Hokkaido, Japan
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Awamleh Z, Butcher DT, Hanley A, Retnakaran R, Haertle L, Haaf T, Hamilton J, Weksberg R. Exposure to Gestational Diabetes Mellitus (GDM) alters DNA methylation in placenta and fetal cord blood. Diabetes Res Clin Pract 2021; 174:108690. [PMID: 33549677 DOI: 10.1016/j.diabres.2021.108690] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/14/2021] [Accepted: 01/25/2021] [Indexed: 02/08/2023]
Abstract
BACKGROUND Fetal exposure to maternal GDM increases offspring risk for adult-onset metabolic syndromes. Epigenetic modifications such as DNA methylation are modulators for fetal metabolic programming and susceptibility to adult-onset disease. This study investigates genome-wide DNA methylation in GDM exposed cord blood and placenta. METHODS Oral glucose tolerance testing between 24 and 28 weeks of pregnancy was used to determine severity of glucose intolerance. We measured DNA methylation (DNAm) using the Illumina Infinium 450 K array in 42 fetal cord blood and 36 placenta samples. RESULTS We identified 662 and 99 CpG sites in GDM placenta and cord blood, respectively at p-value <0.01 and a methylation difference >5% after adjustment for confounders. Annotated sites for AHRR and PTPRN2 were common to cord blood and placenta. Adding published GDM cord blood DNAm data we segregated patients based on treatment (Diet Only vs. +Insulin) and identified altered CpG sites to be unique to each GDM treatment group. CONCLUSION Consistency in findings with other studies provides evidence for the role of DNAm in placental and fetal responses to hyperglycemia. However, segregating DNAm analysis of GDM samples based on treatment may help delineate whether observed DNAm alterations are reflective of adaptive responses or treatment effects in utero.
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Affiliation(s)
- Zain Awamleh
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - Darci T Butcher
- Head of Molecular Genomics, Hamilton Regional Laboratory Medicine Program, Hamilton Health Sciences, Hamilton, Ontario, Canada; Department of Pathology and Molecular Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Anthony Hanley
- Leadership Sinai Centre for Diabetes, Mount Sinai Hospital, Toronto, Ontario, Canada; Division of Endocrinology, University of Toronto, Toronto, Ontario, Canada; Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada
| | - Ravi Retnakaran
- Leadership Sinai Centre for Diabetes, Mount Sinai Hospital, Toronto, Ontario, Canada; Division of Endocrinology, University of Toronto, Toronto, Ontario, Canada; Lunenfeld-Tanenbaum Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Larissa Haertle
- Institute of Human Genetics, Julius Maximilians University, Würzburg, Germany; Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Thomas Haaf
- Institute of Human Genetics, Julius Maximilians University, Würzburg, Germany
| | - Jill Hamilton
- Division of Endocrinology, University of Toronto, Toronto, Ontario, Canada; Department of Nutritional Sciences, University of Toronto, Toronto, Ontario, Canada.
| | - Rosanna Weksberg
- Genetics and Genome Biology Program, The Hospital for Sick Children, Toronto, Ontario, Canada; Department of Paediatrics, University of Toronto, Toronto, Ontario, Canada; Division of Clinical and Metabolic Genetics, Department of Paediatrics, The Hospital for Sick Children, Toronto, Ontario, Canada; Department of Molecular Genetics, University of Toronto, Toronto, Ontario, Canada; Institute of Medical Science, School of Graduate Studies, University of Toronto, Toronto, Ontario, Canada.
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35
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Liu X, Huo W, Zhang R, Wei D, Tu R, Luo Z, Wang Y, Dong X, Qiao D, Liu P, Zhang L, Fan K, Nie L, Liu X, Li L, Wang C, Mao Z. Androgen receptor DNA methylation is an independent determinant of glucose metabolic disorders in women; testosterone plays a moderating effect. J Diabetes 2021; 13:282-291. [PMID: 32979029 DOI: 10.1111/1753-0407.13117] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 09/12/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND We have previously shown that serum testosterone was associated with impaired fasting glucose (IFG) and type 2 diabetes (T2D). Testosterone can be acting through binding the androgen receptor (AR). Therefore, we aimed to explore the independent associations of AR DNA methylation (ARm) with IFG and T2D and the moderation effects of serum testosterone on the associations. METHODS A case-control study with 1065 participants including 461 men and 604 women was performed. ARm in peripheral blood sample and serum testosterone were measured using pyrosequeuncing and liquid chromatography-tandem mass, respectively. Multivariable logistic regression was performed to estimate the associations of ARm (including 2 cytosine-phosphoguanine [CpG] islands and average methylation levels) with different glucose status. Serum testosterone was used as a moderator to estimate the moderation effect. RESULTS After multivariate adjustment, CpG 1, 2 and CpG average methylation were all significantly associated with IFG (CpG 1: Odds ratio (OR) = 4.80, 95% confidence interval (CI): 2.24-10.27; CpG 2: OR = 4.35, 95% CI: 2.50-7.58; CpG average: OR = 11.73, 95% CI: 5.36-25.67) in women. In addition, testosterone played negative moderation effects in above associations. Moreover, no significant independent associations of methylation levels with T2D was observed both in men and women. CONCLUSION Our findings demonstrate that ARm was positively associated with IFG in women and the associations would be weakened by testosterone. The individuals experiencing low testosterone and ARm levels reported a lower state of IFG than those who experienced high levels of testosterone and ARm in women.
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Affiliation(s)
- Xue Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Wenqian Huo
- Department of Occupational and Environmental Health Sciences, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Rui Zhang
- Zhengzhou Customs, Zhengzhou, PR China
| | - Dandan Wei
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Runqi Tu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Zhicheng Luo
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Yan Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Xiaokang Dong
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Dou Qiao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Pengling Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Li Zhang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Keliang Fan
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Luting Nie
- Department of Occupational and Environmental Health Sciences, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Xiaotian Liu
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Linlin Li
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Chongjian Wang
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
| | - Zhenxing Mao
- Department of Epidemiology and Biostatistics, College of Public Health, Zhengzhou University, Zhengzhou, PR China
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36
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Levy G, Barak B. Postnatal therapeutic approaches in genetic neurodevelopmental disorders. Neural Regen Res 2021; 16:414-422. [PMID: 32985459 PMCID: PMC7996025 DOI: 10.4103/1673-5374.293133] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 02/28/2020] [Accepted: 03/28/2020] [Indexed: 12/16/2022] Open
Abstract
Genetic neurodevelopmental disorders are characterized by abnormal neurophysiological and behavioral phenotypes, affecting individuals worldwide. While the subject has been heavily researched, current treatment options relate mostly to alleviating symptoms, rather than targeting the altered genome itself. In this review, we address the neurogenetic basis of neurodevelopmental disorders, genetic tools that are enabling precision research of these disorders in animal models, and postnatal gene-therapy approaches for neurodevelopmental disorders derived from preclinical studies in the laboratory.
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Affiliation(s)
- Gilad Levy
- The Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
| | - Boaz Barak
- The Sagol School of Neuroscience, Tel Aviv University, Tel Aviv, Israel
- The School of Psychological Sciences, Faculty of Social Sciences, Tel Aviv University, Tel Aviv, Israel
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37
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Aoki S, Kaizaki-Mitsumoto A, Hattori N, Numazawa S. Fetal methylphenidate exposure induced ADHD-like phenotypes and decreased Drd2 and Slc6a3 expression levels in mouse offspring. Toxicol Lett 2021; 344:1-10. [PMID: 33647392 DOI: 10.1016/j.toxlet.2021.02.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Revised: 01/29/2021] [Accepted: 02/24/2021] [Indexed: 11/24/2022]
Abstract
Methylphenidate (MPD) is used as a first-line treatment for attention-deficit/hyperactivity disorder (ADHD). The number of prescriptions for ADHD patients is increasing, suggesting that the number of fertile women using such medication might be also increasing. The purpose of this study was to clarify the effects of MPD exposure during the fetal period on infant development, behavior, learning, and memory in mice. Expression levels of candidate genes associated with ADHD were also determined in the brain of pups born to MDP-treated dams who were administered MPD orally at a dose of 2.5, 7.5, or 15 mg/kg daily from gestational day 1 to the day before delivery. Offspring aged 6-8 weeks were subjected to the spontaneous locomotor activity, elevated plus-maze, and passive avoidance tests and therapeutic treatments with MPD or atomoxetine. Fetal MPD exposure induced ADHD-like phenotypes, such as hyperactivity and impulsivity, in mouse offspring, which were suppressed by treatment with MPD and atomoxetine. These mice showed decreased Drd2 and Slc6a3 expression levels in the brain, which are often observed in ADHD model animals. Our results suggest that continuous use of MPD during pregnancy induces ADHD phenotypes in the offspring.
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Affiliation(s)
- Satoru Aoki
- Division of Toxicology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
| | - Asuka Kaizaki-Mitsumoto
- Division of Toxicology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
| | - Natsumi Hattori
- Division of Toxicology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
| | - Satoshi Numazawa
- Division of Toxicology, Department of Pharmacology, Toxicology and Therapeutics, Showa University School of Pharmacy 1-5-8 Hatanodai, Shinagawa-ku, Tokyo, 142-8555, Japan.
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38
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Zhou L, Pu Y, Zhou Y, Wang B, Chen Y, Bai Y, He S. Genome wide methylation analysis to uncover genes related to recurrent pregnancy loss. Genes Genomics 2021; 43:361-369. [PMID: 33555507 DOI: 10.1007/s13258-020-01020-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Accepted: 11/25/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND Recurrent pregnancy loss (RPL) refers to two or more consecutive spontaneous abortion before 24 weeks of gestation, representing 1% of couples of childbearing age. Epigenetic factors including dysregulation of DNA methylation of some genes may play a role in RPL. OBJECTIVE To identify RPL related genes modulated by DNA methylation expressed in decidua and blood. METHODS Three decidua samples each from RPL patients and normal controls were recruited to perform genome-wide bisulfite sequencing (GWBS) and transcriptome sequencing. Based on the above results, 22.52 kb of differential methylation regions (DMRs) from 17 genes were verified by bisulfite sequencing PCR at specific region (Hi-MethylSeq) in another 15 decidua (7RPL vs. 8 Controls) and 13 blood (5RPL vs. 8 Controls) samples. RESULTS 23 genes showed significantly differential cytosine methylation status and distinct expression level between PRL patients and healthy controls synergistically. Three signaling pathways were found to be shared between genes with both hypomethylated differential methylation regions (DMR) and upregulated differential gene expression (DGE). The results from Hi-MethylSeq showed that the hypermethylation of SGK1 in both blood and decidua samples in RPL patients, which was consistent to its lower expression in endometrium reported earlier. SGK3 and CREB5 also showed modulated methylation level in RPL decidua. CONCLUSION Our finding supported that aberrant methylation of SGK1 and CREB5 could be a cause of the dysregulation of these gens in the endometrium, which is one of cause of reproductive failure. The function of SGK3 in reproduction system deserves further investigation.
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Affiliation(s)
- Lixia Zhou
- Obstetrics, Songshan Lake Central Hospital, No 1 Xianglong Road, Shilong Town, Dongguan, 523326, Guangdong, China
| | - Yudong Pu
- Obstetrics, Songshan Lake Central Hospital, No 1 Xianglong Road, Shilong Town, Dongguan, 523326, Guangdong, China
| | - Yuxun Zhou
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Bin Wang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai, China
| | - Ye Chen
- Shanghai Biowing Applied Biotechnology Co., Ltd, Shanghai, China
| | - Yang Bai
- Shanghai Biowing Applied Biotechnology Co., Ltd, Shanghai, China
| | - Shuzhen He
- Obstetrics, Songshan Lake Central Hospital, No 1 Xianglong Road, Shilong Town, Dongguan, 523326, Guangdong, China.
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39
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Association between methylation of BIN1 promoter in peripheral blood and preclinical Alzheimer's disease. Transl Psychiatry 2021; 11:89. [PMID: 33531457 PMCID: PMC7854626 DOI: 10.1038/s41398-021-01218-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 12/28/2020] [Accepted: 01/12/2021] [Indexed: 11/08/2022] Open
Abstract
The bridging integrator 1 (BIN1) gene is the second most important susceptibility gene for late-onset Alzheimer's disease (LOAD) after apolipoprotein E (APOE) gene. To explore whether the BIN1 methylation in peripheral blood changed in the early stage of LOAD, we included 814 participants (484 cognitively normal participants [CN] and 330 participants with subjective cognitive decline [SCD]) from the Chinese Alzheimer's Biomarker and LifestylE (CABLE) database. Then we tested associations of methylation of BIN1 promoter in peripheral blood with the susceptibility for preclinical AD or early changes of cerebrospinal fluid (CSF) AD-related biomarkers. Results showed that SCD participants with significant AD biological characteristics had lower methylation levels of BIN1 promoter, even after correcting for covariates. Hypomethylation of BIN1 promoter were associated with decreased CSF Aβ42 (p = 0.0008), as well as increased p-tau/Aβ42 (p = 0.0001) and t-tau/Aβ42 (p < 0.0001) in total participants. Subgroup analysis showed that the above associations only remained in the SCD subgroup. In addition, hypomethylation of BIN1 promoter was also accompanied by increased CSF p-tau (p = 0.0028) and t-tau (p = 0.0130) in the SCD subgroup, which was independent of CSF Aβ42. Finally, above associations were still significant after correcting single nucleotide polymorphic sites (SNPs) and interaction of APOE ɛ4 status. Our study is the first to find a robust association between hypomethylation of BIN1 promoter in peripheral blood and preclinical AD. This provides new evidence for the involvement of BIN1 in AD, and may contribute to the discovery of new therapeutic targets for AD.
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40
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DNA Methylation in LIME1 and SPTBN2 Genes Is Associated with Attention Deficit in Children. CHILDREN-BASEL 2021; 8:children8020092. [PMID: 33572947 PMCID: PMC7912017 DOI: 10.3390/children8020092] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Revised: 01/13/2021] [Accepted: 01/26/2021] [Indexed: 12/15/2022]
Abstract
DNA methylation levels are associated with neurodevelopment. Attention-deficit/hyperactivity disorder (ADHD), characterized by attention deficits, is a common neurodevelopmental disorder. We used methylation microarray and pyrosequencing to detect peripheral blood DNA methylation markers of ADHD. DNA methylation profiling data from the microarray assays identified potential differentially methylated CpG sites between 12 ADHD patients and 9 controls. Five candidate CpG sites (cg00446123, cg20513976, cg07922513, cg17096979, and cg02506324) in four genes (LIME1, KCNAB2, CAPN9, and SPTBN2) were further examined with pyrosequencing. The attention of patients were tested using the Conners’ Continuous Performance Test (CPT). In total, 126 ADHD patients with a mean age of 9.2 years (78.6% males) and 72 healthy control subjects with a mean age of 9.3 years (62.5% males) were recruited. When all participants were categorized by their CPT performance, the DNA methylation levels in LIME1 (cg00446123 and cg20513976) were found to be significantly higher and those in SPTBN2 (cg02506324) were significantly lower in children with worse CPT performance. Therefore, DNA methylation of two CpG sites in LIME1 and one CpG site in SPTBN2 is associated with attention deficits in children. DNA methylation biomarkers may assist in identifying attention deficits of children in clinical settings.
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41
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Neumann A, Walton E, Alemany S, Cecil C, González JR, Jima DD, Lahti J, Tuominen ST, Barker ED, Binder E, Caramaschi D, Carracedo Á, Czamara D, Evandt J, Felix JF, Fuemmeler BF, Gutzkow KB, Hoyo C, Julvez J, Kajantie E, Laivuori H, Maguire R, Maitre L, Murphy SK, Murcia M, Villa PM, Sharp G, Sunyer J, Raikkönen K, Bakermans-Kranenburg M, IJzendoorn MV, Guxens M, Relton CL, Tiemeier H. Association between DNA methylation and ADHD symptoms from birth to school age: a prospective meta-analysis. Transl Psychiatry 2020; 10:398. [PMID: 33184255 PMCID: PMC7665047 DOI: 10.1038/s41398-020-01058-z] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 06/29/2020] [Accepted: 07/22/2020] [Indexed: 01/06/2023] Open
Abstract
Attention-deficit and hyperactivity disorder (ADHD) is a common childhood disorder with a substantial genetic component. However, the extent to which epigenetic mechanisms play a role in the etiology of the disorder is unknown. We performed epigenome-wide association studies (EWAS) within the Pregnancy And Childhood Epigenetics (PACE) Consortium to identify DNA methylation sites associated with ADHD symptoms at two methylation assessment periods: birth and school age. We examined associations of both DNA methylation in cord blood with repeatedly assessed ADHD symptoms (age 4-15 years) in 2477 children from 5 cohorts and of DNA methylation at school age with concurrent ADHD symptoms (age 7-11 years) in 2374 children from 9 cohorts, with 3 cohorts participating at both timepoints. CpGs identified with nominal significance (p < 0.05) in either of the EWAS were correlated between timepoints (ρ = 0.30), suggesting overlap in associations; however, top signals were very different. At birth, we identified nine CpGs that predicted later ADHD symptoms (p < 1 × 10-7), including ERC2 and CREB5. Peripheral blood DNA methylation at one of these CpGs (cg01271805 in the promoter region of ERC2, which regulates neurotransmitter release) was previously associated with brain methylation. Another (cg25520701) lies within the gene body of CREB5, which previously was associated with neurite outgrowth and an ADHD diagnosis. In contrast, at school age, no CpGs were associated with ADHD with p < 1 × 10-7. In conclusion, we found evidence in this study that DNA methylation at birth is associated with ADHD. Future studies are needed to confirm the utility of methylation variation as biomarker and its involvement in causal pathways.
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Affiliation(s)
- Alexander Neumann
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands.,Lady Davis Institute for Medical Research, Jewish General Hospital, Montreal, QC, Canada.,The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Esther Walton
- Medical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK.,Department of Psychology, University of Bath, Bath, UK
| | - Silvia Alemany
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Charlotte Cecil
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands.,The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Juan Ramon González
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Dereje D Jima
- Center for Human Health and the Environment, NCSU, Raleigh, NC, USA.,Bioinformatics Research Center, NCSU, Raleigh, NC, USA
| | - Jari Lahti
- Turku Institute for Advanced Studies, University of Turku, Turku, Finland.,Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Samuli T Tuominen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | - Edward D Barker
- Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.,Centre for Population Neuroscience and Stratified Medicine (PONS), MRC Social, Genetic and Developmental Psychiatry (SGDP) Centre, London, UK
| | - Elisabeth Binder
- Department of Translational Research in Psychiatry, Max-Planck-Institute of Psychiatry, Munich, Germany.,Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Doretta Caramaschi
- Medical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK
| | - Ángel Carracedo
- Grupo de Medicina Xenómica, Fundación Pública Galega de Merdicina Xenómica, Instituto de Investigación Sanitaria de Santiago de Compostela (IDIS), SERGAS, Santiago de Compostela, Spain.,Centro de Investigación en Red de Enfermedades Raras (CIBERER) y Centro Nacional de Genotipado (CEGEN-PRB3), Universidad de Santiago de Compostela, Santiago de Compostela, Spain
| | - Darina Czamara
- Department of Translational Research in Psychiatry, Max-Planck-Institute of Psychiatry, Munich, Germany
| | - Jorunn Evandt
- Department of Air Pollution and Noise, Norwegian Institute of Public Health, Oslo, Norway
| | - Janine F Felix
- The Generation R Study Group, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands.,Department of Pediatrics, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
| | - Bernard F Fuemmeler
- Department of Health Behavior and Policy, Virginia Commonwealth University, Richmond, VA, USA.,Massey Cancer Center, Virginia Commonwealth University, Richmond, VA, USA
| | - Kristine B Gutzkow
- Department of Molecular Biology, Norwegian Institute of Public Health, Oslo, Norway
| | - Cathrine Hoyo
- Center for Human Health and the Environment, NCSU, Raleigh, NC, USA.,Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
| | - Jordi Julvez
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Eero Kajantie
- Chronic Disease Prevention Unit, National Institute for Health and Welfare, Helsinki, Finland.,Hospital for Children and Adolescents, Helsinki University Central Hospital and University of Helsinki, Helsinki, Finland
| | - Hannele Laivuori
- Medical and Clinical Genetics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland.,Institute for Molecular Medicine Finland (FIMM), Helsinki Institute of Life Science, University of Helsinki, Helsinki, Finland
| | - Rachel Maguire
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, USA
| | - Léa Maitre
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Susan K Murphy
- Department of Obstetrics and Gynecology, Duke University Medical Center, Durham, NC, USA
| | - Mario Murcia
- CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain.,Joint Research Unit of Epidemiology and Environmental Health, FISABIO-Universitat Jaume I-Universitat de València, Valencia, Spain
| | - Pia M Villa
- Medical and Clinical Genetics, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
| | - Gemma Sharp
- Medical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK
| | - Jordi Sunyer
- ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Katri Raikkönen
- Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | | | - Mònica Guxens
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands.,ISGlobal, Barcelona Institute for Global Health, Barcelona, Spain.,Universitat Pompeu Fabra (UPF), Barcelona, Spain.,CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
| | - Caroline L Relton
- Medical Research Council Integrative Epidemiology Unit, Bristol Medical School, University of Bristol, Bristol, UK
| | - Henning Tiemeier
- Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center Rotterdam, Rotterdam, the Netherlands. .,Department of Social and Behavioral Science, Harvard TH Chan School of Public Health, Boston, MA, USA.
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42
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DNA methylation associated with persistent ADHD suggests TARBP1 as novel candidate. Neuropharmacology 2020; 184:108370. [PMID: 33137342 DOI: 10.1016/j.neuropharm.2020.108370] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 10/07/2020] [Accepted: 10/23/2020] [Indexed: 12/25/2022]
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by age-inappropriate symptoms of inattention and/or hyperactivity and impulsivity. ADHD is highly prevalent in childhood and often persists into adulthood. Both genetic variants and environmental factors play a role in the onset and persistence of ADHD, and epigenetic changes, such as DNA methylation are considered as a link for their interplay. To investigate this, we studied DNA methylation in 37 candidate genes by performing targeted bisulfite sequencing of DNA isolated from whole blood of N = 88 individuals diagnosed with adult ADHD and N = 91 unaffected individuals (mean age 34.2 years). Differentially methylated sites were assessed by generalized linear models testing ADHD status and ADHD symptoms, accounting for a methylation-based smoking score, age, sex, and blood cell count. DNA methylation of single sites within DRD4 and KLDR1 was associated with adult ADHD status, and multiple DNA methylation sites within TARBP1 were associated with ADHD symptoms in adulthood and childhood. Awaiting replication, findings of this pilot study point to TARBP1 as a new candidate gene for ADHD symptoms. Our work also stresses the need for research to further examine the effects of environmental factors, such as nicotine exposure, on epigenetic modifications associated with psychiatric traits.
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43
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Goodman SJ, Burton CL, Butcher DT, Siu MT, Lemire M, Chater-Diehl E, Turinsky AL, Brudno M, Soreni N, Rosenberg D, Fitzgerald KD, Hanna GL, Anagnostou E, Arnold PD, Crosbie J, Schachar R, Weksberg R. Obsessive-compulsive disorder and attention-deficit/hyperactivity disorder: distinct associations with DNA methylation and genetic variation. J Neurodev Disord 2020; 12:23. [PMID: 32799817 PMCID: PMC7429807 DOI: 10.1186/s11689-020-09324-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Accepted: 07/28/2020] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND A growing body of research has demonstrated associations between specific neurodevelopmental disorders and variation in DNA methylation (DNAm), implicating this molecular mark as a possible contributor to the molecular etiology of these disorders and/or as a novel disease biomarker. Furthermore, genetic risk variants of neurodevelopmental disorders have been found to be enriched at loci associated with DNAm patterns, referred to as methylation quantitative trait loci (mQTLs). METHODS We conducted two epigenome-wide association studies in individuals with attention-deficit/hyperactivity disorder (ADHD) or obsessive-compulsive disorder (OCD) (aged 4-18 years) using DNA extracted from saliva. DNAm data generated on the Illumina Human Methylation 450 K array were used to examine the interaction between genetic variation and DNAm patterns associated with these disorders. RESULTS Using linear regression followed by principal component analysis, individuals with the most endorsed symptoms of ADHD or OCD were found to have significantly more distinct DNAm patterns from controls, as compared to all cases. This suggested that the phenotypic heterogeneity of these disorders is reflected in altered DNAm at specific sites. Further investigations of the DNAm sites associated with each disorder revealed that despite little overlap of these DNAm sites across the two disorders, both disorders were significantly enriched for mQTLs within our sample. CONCLUSIONS Our DNAm data provide insights into the regulatory changes associated with genetic variation, highlighting their potential utility both in directing GWAS and in elucidating the pathophysiology of neurodevelopmental disorders.
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Affiliation(s)
- Sarah J Goodman
- Genetics and Genome Biology, SickKids Hospital, Toronto, ON, Canada
| | - Christie L Burton
- Neurosciences and Mental Health Program, SickKids Hospital, Toronto, ON, Canada
| | - Darci T Butcher
- Department of Pathology and Molecular Medicine, McMaster University, Hamilton, ON, Canada
| | - Michelle T Siu
- Biochemical Genetics Laboratory, Alberta Children's Hospital, Calgary, AB, Canada
| | - Mathieu Lemire
- Neurosciences and Mental Health Program, SickKids Hospital, Toronto, ON, Canada
| | | | - Andrei L Turinsky
- Genetics and Genome Biology, SickKids Hospital, Toronto, ON, Canada
- Centre for Computational Medicine, SickKids Hospital, Toronto, ON, Canada
| | - Michael Brudno
- Genetics and Genome Biology, SickKids Hospital, Toronto, ON, Canada
- Centre for Computational Medicine, SickKids Hospital, Toronto, ON, Canada
- Department of Computer Science, University of Toronto, Toronto, ON, Canada
| | - Noam Soreni
- Department of Psychiatry and Behavioural Neurosciences, McMaster University, Hamilton, ON, Canada
| | - David Rosenberg
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University, Detroit, MI, USA
| | - Kate D Fitzgerald
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Gregory L Hanna
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Evdokia Anagnostou
- Holland Bloorview Kids Rehabilitation Hospital Toronto, Toronto, ON, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada
| | - Paul D Arnold
- Mathison Centre for Mental Health Research and Education, University of Calgary, Calgary, AB, Canada
- Departments of Psychiatry and Medical Genetics, Hotchkiss Brain Institute, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Jennifer Crosbie
- Neurosciences and Mental Health Program, SickKids Hospital, Toronto, ON, Canada
| | - Russell Schachar
- Neurosciences and Mental Health Program, SickKids Hospital, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
| | - Rosanna Weksberg
- Genetics and Genome Biology, SickKids Hospital, Toronto, ON, Canada.
- Institute of Medical Science, University of Toronto, Toronto, ON, Canada.
- Division of Clinical and Metabolic Genetics, SickKids Hospital, Toronto, ON, Canada.
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada.
- Department of Paediatrics, University of Toronto, Toronto, ON, Canada.
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44
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Rovira P, Sánchez-Mora C, Pagerols M, Richarte V, Corrales M, Fadeuilhe C, Vilar-Ribó L, Arribas L, Shireby G, Hannon E, Mill J, Casas M, Ramos-Quiroga JA, Soler Artigas M, Ribasés M. Epigenome-wide association study of attention-deficit/hyperactivity disorder in adults. Transl Psychiatry 2020; 10:199. [PMID: 32561708 PMCID: PMC7305172 DOI: 10.1038/s41398-020-0860-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Revised: 05/05/2020] [Accepted: 05/15/2020] [Indexed: 12/16/2022] Open
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a highly heritable neurodevelopmental disorder that often persists into adulthood. There is growing evidence that epigenetic dysregulation participates in ADHD. Given that only a limited number of epigenome-wide association studies (EWASs) of ADHD have been conducted so far and they have mainly focused on pediatric and population-based samples, we performed an EWAS in a clinical sample of adults with ADHD. We report one CpG site and four regions differentially methylated between patients and controls, which are located in or near genes previously involved in autoimmune diseases, cancer or neuroticism. Our sensitivity analyses indicate that smoking status is not responsible for these results and that polygenic risk burden for ADHD does not greatly impact the signatures identified. Additionally, we show an overlap of our EWAS findings with genetic signatures previously described for ADHD and with epigenetic signatures for smoking behavior and maternal smoking. These findings support a role of DNA methylation in ADHD and emphasize the need for additional efforts in larger samples to clarify the role of epigenetic mechanisms on ADHD across the lifespan.
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Affiliation(s)
- Paula Rovira
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Cristina Sánchez-Mora
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Genetics, Microbiology, and Statistics, Faculty of Biology, University of Barcelona, Catalonia, Spain
| | - Mireia Pagerols
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Vanesa Richarte
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Montserrat Corrales
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Christian Fadeuilhe
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Laura Vilar-Ribó
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Lorena Arribas
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
| | - Gemma Shireby
- University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Eilis Hannon
- University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Jonathan Mill
- University of Exeter Medical School, University of Exeter, Exeter, UK
| | - Miquel Casas
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Josep Antoni Ramos-Quiroga
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain
- Department of Psychiatry and Legal Medicine, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - María Soler Artigas
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain.
- Department of Genetics, Microbiology, and Statistics, Faculty of Biology, University of Barcelona, Catalonia, Spain.
| | - Marta Ribasés
- Psychiatric Genetics Unit, Group of Psychiatry, Mental Health and Addiction, Vall d'Hebron Research Institute (VHIR), Universitat Autònoma de Barcelona, Barcelona, Spain.
- Department of Psychiatry, Hospital Universitari Vall d'Hebron, Barcelona, Spain.
- Biomedical Network Research Centre on Mental Health (CIBERSAM), Instituto de Salud Carlos III, Madrid, Spain.
- Department of Genetics, Microbiology, and Statistics, Faculty of Biology, University of Barcelona, Catalonia, Spain.
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45
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Mirkovic B, Chagraoui A, Gerardin P, Cohen D. Epigenetics and Attention-Deficit/Hyperactivity Disorder: New Perspectives? Front Psychiatry 2020; 11:579. [PMID: 32625125 PMCID: PMC7311572 DOI: 10.3389/fpsyt.2020.00579] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 06/05/2020] [Indexed: 12/23/2022] Open
Affiliation(s)
- Bojan Mirkovic
- Department of Child and Adolescent Psychiatry, CH Le Rouvray, Rouen University Hospital, Rouen, France
- Université Paris-Saclay, UVSQ, INSERM, Centre for Research in Epidemiology and Population Health (CESP), Villejuif, France
| | - Abdeslam Chagraoui
- Neuronal and Neuroendocrine Differentiation and Communication Laboratory, Institute for Research and Innovation in Biomedicine of Normandy (IRIB), Department of Medical Biochemistry, Rouen University Hospital, Rouen, France
| | - Priscille Gerardin
- Department of Child and Adolescent Psychiatry, CH Le Rouvray, Rouen University Hospital, Rouen, France
- Université Paris-Saclay, UVSQ, INSERM, Centre for Research in Epidemiology and Population Health (CESP), Villejuif, France
| | - David Cohen
- Department of Child and Adolescent Psychiatry, AP-HP, Groupe Hospitalier Pitié-Salpêtrière, Paris, France
- GRC-15, Approche dimensionnelle des épisodes psychotiques de l'enfant et de l'adolescent, Faculté de Médecine, UPMC, Sorbonne Université, Paris, France
- CNRS UMR 7222 “Institut des Systèmes Intelligents et Robotiques”, Sorbonne Université, Paris, France
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46
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Piras IS, Costa A, Tirindelli MC, Stoccoro A, Huentelman MJ, Sacco R, Coppedè F, Lintas C. Genetic and epigenetic MTHFR gene variants in the mothers of attention-deficit/hyperactivity disorder affected children as possible risk factors for neurodevelopmental disorders. Epigenomics 2020; 12:813-823. [PMID: 32485115 DOI: 10.2217/epi-2019-0356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Aim: To assess promoter methylation levels, gene expression levels and 677C>T/1298A>C genotype and allele frequencies of the MTHFR gene in 45 mothers of attention-deficit/hyperactivity disorder affected child/children (ADHDM) and compare it with age matched healthy control mothers (HCM). Materials & methods: High resolution melting analysis, quantitative real time PCR and PCR-RFLP were performed to assess methylation, gene expression and genotyping, respectively. Significance between ADHDM and HCM was assessed by linear (methylation and gene expression) and logistic regression (genotypes). Results: MTHFR gene expression levels were significantly higher in the ADHDM compared with the HCM group (adj-p < 7.7E-04). No differences in MTHFR promoter methylation level and 677C>T/1298A>C genotype frequencies were detected between ADHDM and HCM. Conclusion: We observed increased MTHFR expression levels not resulting from promoter methylation changes in ADHDM respect to HMC, potentially contributing to the ADHD condition in their children and deserving further investigation.
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Affiliation(s)
- Ignazio Stefano Piras
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ 85004, USA
| | - Anna Costa
- Service for Neurodevelopmental Disorders, University Campus Bio-Medico, Rome, Italy
| | | | - Andrea Stoccoro
- Medical Genetics Laboratory, Department of Translational Research & New Technologies in Medicine & Surgery, University of Pisa, Pisa, Italy
| | - Matthew J Huentelman
- Neurogenomics Division, Translational Genomics Research Institute, Phoenix, AZ 85004, USA
| | - Roberto Sacco
- Service for Neurodevelopmental Disorders, University Campus Bio-Medico, Rome, Italy
| | - Fabio Coppedè
- Medical Genetics Laboratory, Department of Translational Research & New Technologies in Medicine & Surgery, University of Pisa, Pisa, Italy
| | - Carla Lintas
- Service for Neurodevelopmental Disorders, University Campus Bio-Medico, Rome, Italy
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47
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Hollander JA, Cory-Slechta DA, Jacka FN, Szabo ST, Guilarte TR, Bilbo SD, Mattingly CJ, Moy SS, Haroon E, Hornig M, Levin ED, Pletnikov MV, Zehr JL, McAllister KA, Dzierlenga AL, Garton AE, Lawler CP, Ladd-Acosta C. Beyond the looking glass: recent advances in understanding the impact of environmental exposures on neuropsychiatric disease. Neuropsychopharmacology 2020; 45:1086-1096. [PMID: 32109936 PMCID: PMC7234981 DOI: 10.1038/s41386-020-0648-5] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Accepted: 02/17/2020] [Indexed: 12/22/2022]
Abstract
The etiologic pathways leading to neuropsychiatric diseases remain poorly defined. As genomic technologies have advanced over the past several decades, considerable progress has been made linking neuropsychiatric disorders to genetic underpinnings. Interest and consideration of nongenetic risk factors (e.g., lead exposure and schizophrenia) have, in contrast, lagged behind heritable frameworks of explanation. Thus, the association of neuropsychiatric illness to environmental chemical exposure, and their potential interactions with genetic susceptibility, are largely unexplored. In this review, we describe emerging approaches for considering the impact of chemical risk factors acting alone and in concert with genetic risk, and point to the potential role of epigenetics in mediating exposure effects on transcription of genes implicated in mental disorders. We highlight recent examples of research in nongenetic risk factors in psychiatric disorders that point to potential shared biological mechanisms-synaptic dysfunction, immune alterations, and gut-brain interactions. We outline new tools and resources that can be harnessed for the study of environmental factors in psychiatric disorders. These tools, combined with emerging experimental evidence, suggest that there is a need to broadly incorporate environmental exposures in psychiatric research, with the ultimate goal of identifying modifiable risk factors and informing new treatment strategies for neuropsychiatric disease.
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Affiliation(s)
- Jonathan A Hollander
- Genes, Environment and Health Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA.
| | - Deborah A Cory-Slechta
- Department of Environmental Medicine, Box EHSC, University of Rochester Medical Center, Rochester, NY, USA
| | - Felice N Jacka
- Food & Mood Centre, IMPACT SRC, School of Medicine, Deakin University, Geelong, VIC, Australia
- iMPACT (the Institute for Mental and Physical Health and Clinical Translation), Food & Mood Centre, Deakin University, Geelong, VIC, Australia
- Centre for Adolescent Health, Murdoch Children's Research Institute, Melbourne, VIC, Australia
- Black Dog Institute, Sydney, NSW, Australia
- James Cook University, Townsville, QLD, Australia
| | - Steven T Szabo
- Duke University Medical Center, Durham, NC, USA
- Durham Veterans Affairs Medical Center, Durham, NC, USA
| | - Tomás R Guilarte
- Department of Environmental Health Sciences Robert Stempel College of Public Health and Social Work, Florida International University, Miami, FL, USA
| | - Staci D Bilbo
- Department of Psychology & Neuroscience, Duke University, Durham, NC, USA
| | - Carolyn J Mattingly
- Department of Biological Sciences, Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, USA
| | - Sheryl S Moy
- Department of Psychiatry and Carolina Institute for Developmental Disabilities, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Ebrahim Haroon
- Department of Psychiatry and Behavioral Sciences, Emory University School of Medicine, Atlanta, GA, USA
| | - Mady Hornig
- Department of Epidemiology, Mailman School of Public Health, Columbia University, New York, NY, USA
| | - Edward D Levin
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
| | - Mikhail V Pletnikov
- Departments of Psychiatry, Neuroscience, Molecular and Comparative Pathobiology, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Julia L Zehr
- Developmental Mechanisms and Trajectories of Psychopathology Branch, National Institute of Mental Health, NIH, Rockville, MD, USA
| | - Kimberly A McAllister
- Genes, Environment and Health Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Anika L Dzierlenga
- Genes, Environment and Health Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Amanda E Garton
- Genes, Environment and Health Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Cindy P Lawler
- Genes, Environment and Health Branch, National Institute of Environmental Health Sciences, NIH, Research Triangle Park, NC, USA
| | - Christine Ladd-Acosta
- Department of Epidemiology and Wendy Klag Center for Autism and Developmental Disabilities, Johns Hopkins University, Baltimore, MD, USA
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48
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Ying Y, Li J, Xie H, Yan H, Jin K, He L, Ma X, Wu J, Xu X, Fang J, Wang X, Zheng X, Liu B, Xie L. CCND1, NOP14 and DNMT3B are involved in miR-502-5p-mediated inhibition of cell migration and proliferation in bladder cancer. Cell Prolif 2020; 53:e12751. [PMID: 31971654 PMCID: PMC7048215 DOI: 10.1111/cpr.12751] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/12/2019] [Accepted: 12/07/2019] [Indexed: 02/05/2023] Open
Abstract
OBJECTIVES Downregulation of miR-502-5p has emerged as a critical factor in tumour progression in several cancers. Herein, we elucidated the role of miR-502-5p in bladder cancer. MATERIALS AND METHODS RT-qPCR was performed to examine the expression of miR-502-5p in bladder cancer. And DNA methylation analysis showed that epigenetic mechanisms may contribute to the downregulation of miR-502-5p. Then, wound-healing assay, transwell assay, colony formation assay, CCK8 assay and flow cytometry analysis were applied to evaluate the function of miR-502-5p in bladder cancer cell lines. Western blot was conducted to measure the protein levels of related genes. Furthermore, dual-luciferase reporter assay, in vivo tumorigenesis assay and immunohistochemical staining were also conducted as needed. RESULTS MiR-502-5p is frequently downregulated in BCa. Meanwhile, hypermethylation of CpG islands contributes to the downregulation of miR-502-5p. Functionally, overexpression of miR-502-5p inhibited cell proliferation and migration in vitro and repressed tumour growth in vivo. CCND1, DNMT3B and NOP14 were identified as direct targets of miR-502-5p. Interestingly, DNMT3B and miR-502-5p established a positive feedback loop in the regulation of bladder cancer. In addition, rescue experiments further validated the direct molecular interaction between miR-502-5p and its targets. CONCLUSIONS Our study proposed and demonstrated that the miR-502-5p-mediated regulatory network is critical in bladder cancer; this network may be useful in the development of more effective therapies against bladder cancer.
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Affiliation(s)
- Yufan Ying
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Jiangfeng Li
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Haiyun Xie
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Huaqing Yan
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Ke Jin
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Liujia He
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Xueyou Ma
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Jian Wu
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Xin Xu
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Jiajie Fang
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Xiao Wang
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Xiangyi Zheng
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Ben Liu
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
| | - Liping Xie
- Department of UrologySchool of MedicineFirst Affiliated Hospital of Zhejiang UniversityHangzhouChina
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49
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Meijer M, Klein M, Hannon E, van der Meer D, Hartman C, Oosterlaan J, Heslenfeld D, Hoekstra PJ, Buitelaar J, Mill J, Franke B. Genome-Wide DNA Methylation Patterns in Persistent Attention-Deficit/Hyperactivity Disorder and in Association With Impulsive and Callous Traits. Front Genet 2020; 11:16. [PMID: 32082368 PMCID: PMC7005250 DOI: 10.3389/fgene.2020.00016] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2019] [Accepted: 01/07/2020] [Indexed: 12/27/2022] Open
Abstract
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder that often persists into adulthood. ADHD and related personality traits, such as impulsivity and callousness, are caused by genetic and environmental factors and their interplay. Epigenetic modifications of DNA, including methylation, are thought to mediate between such factors and behavior and may behave as biomarkers for disorders. Here, we set out to study DNA methylation in persistent ADHD and related traits. We performed epigenome-wide association studies (EWASs) on peripheral whole blood from participants in the NeuroIMAGE study (age range 12-23 years). We compared participants with persistent ADHD (n = 35) with healthy controls (n = 19) and with participants with remittent ADHD (n = 19). Additionally, we performed EWASs of impulsive and callous traits derived from the Conners Parent Rating Scale and the Callous-Unemotional Inventory, respectively, across all participants. For every EWAS, the linear regression model analyzed included covariates for age, sex, smoking scores, and surrogate variables reflecting blood cell type composition and genetic background. We observed no epigenome-wide significant differences in single CpG site methylation between participants with persistent ADHD and healthy controls or participants with remittent ADHD. However, epigenome-wide analysis of differentially methylated regions provided significant findings showing that hypermethylated regions in the APOB and LPAR5 genes were associated with ADHD persistence compared to ADHD remittance (p = 1.68 * 10-24 and p = 9.06 * 10-7, respectively); both genes are involved in cholesterol signaling. Both findings appeared to be linked to genetic variation in cis. We found neither significant epigenome-wide single CpG sites nor regions associated with impulsive and callous traits; the top-hits from these analyses were annotated to genes involved in neurotransmitter release and the regulation of the biological clock. No link to genetic variation was observed for these findings, which thus might reflect environmental influences. In conclusion, in this pilot study with a small sample size, we observed several DNA-methylation-disorder/trait associations of potential significance for ADHD and the related behavioral traits. Although we do not wish to draw conclusions before replication in larger, independent samples, cholesterol signaling and metabolism may be of relevance for the onset and/or persistence of ADHD.
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Affiliation(s)
- Mandy Meijer
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, Netherlands
| | - Marieke Klein
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, Netherlands
- Department of Psychiatry, UMC Utrecht Brain Center, University Medical Center Utrecht, Utrecht, Netherlands
| | - Eilis Hannon
- Medical School, University of Exeter, Exeter, United Kingdom
| | - Dennis van der Meer
- NORMENT, Division of Mental Health and Addiction, Oslo University Hospital & Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Faculty of Health, Medicine and Life Sciences, School of Mental Health and Neuroscience, Maastricht University, Maastricht, Netherlands
| | - Catharina Hartman
- Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Jaap Oosterlaan
- Experimental and Clinical Neuropsychology Section, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
- Emma Neuroscience Group, Department of Pediatrics, Amsterdam Reproduction & Development, Emma Children's Hospital, Amsterdam UMC, University of Amsterdam and Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Dirk Heslenfeld
- Experimental and Clinical Neuropsychology Section, Vrije Universiteit Amsterdam, Amsterdam, Netherlands
| | - Pieter J. Hoekstra
- Department of Psychiatry, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Jan Buitelaar
- Donders Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, Netherlands
- Department of Cognitive Neuroscience, Radboud University Medical Centre, Nijmegen, Netherlands
- Karakter Child and Adolescent Psychiatric University Centre, Nijmegen, Netherlands
| | - Jonathan Mill
- Medical School, University of Exeter, Exeter, United Kingdom
| | - Barbara Franke
- Department of Human Genetics, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, Netherlands
- Department of Psychiatry, Donders Institute for Brain, Cognition and Behavior, Radboud University Medical Center, Nijmegen, Netherlands
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50
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Mooney MA, Ryabinin P, Wilmot B, Bhatt P, Mill J, Nigg JT. Large epigenome-wide association study of childhood ADHD identifies peripheral DNA methylation associated with disease and polygenic risk burden. Transl Psychiatry 2020; 10:8. [PMID: 32066674 PMCID: PMC7026179 DOI: 10.1038/s41398-020-0710-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Revised: 12/09/2019] [Accepted: 12/20/2019] [Indexed: 12/17/2022] Open
Abstract
Epigenetic variation in peripheral tissues is being widely studied as a molecular biomarker of complex disease and disease-related exposures. To date, few studies have examined differences in DNA methylation associated with attention-deficit hyperactivity disorder (ADHD). In this study, we profiled genetic and methylomic variation across the genome in saliva samples from children (age 7-12 years) with clinically established ADHD (N = 391) and nonpsychiatric controls (N = 213). We tested for differentially methylated positions (DMPs) associated with both ADHD diagnosis and ADHD polygenic risk score, by using linear regression models including smoking, medication effects, and other potential confounders in our statistical models. Our results support previously reported associations between ADHD and DNA methylation levels at sites annotated to VIPR2, and identify several novel disease-associated DMPs (p < 1e-5), although none of them were genome-wide significant. The two top-ranked, ADHD-associated DMPs (cg17478313 annotated to SLC7A8 and cg21609804 annotated to MARK2) are also significantly associated with nearby SNPs (p = 1.2e-46 and p = 2.07e-59), providing evidence that disease-associated DMPs are under genetic control. We also report a genome-wide significant association between ADHD polygenic risk and variable DNA methylation at a site annotated to the promoter of GART and SON (p = 6.71E-8). Finally, we show that ADHD-associated SNPs colocalize with SNPs associated with methylation levels in saliva. This is the first large-scale study of DNA methylation in children with ADHD. Our results represent novel epigenetic biomarkers for ADHD that may be useful for patient stratification, reinforce the importance of genetic effects on DNA methylation, and provide plausible molecular mechanisms for ADHD risk variants.
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Affiliation(s)
- Michael A. Mooney
- grid.5288.70000 0000 9758 5690Division of Bioinformatics & Computational Biology, Department of Medical Informatics & Clinical Epidemiology, Oregon Health & Science University, Portland, OR USA ,grid.5288.70000 0000 9758 5690OHSU Knight Cancer Institute, Portland, OR USA
| | - Peter Ryabinin
- grid.5288.70000 0000 9758 5690Oregon Clinical and Translational Research Institute, Portland, OR USA
| | - Beth Wilmot
- grid.5288.70000 0000 9758 5690Division of Bioinformatics & Computational Biology, Department of Medical Informatics & Clinical Epidemiology, Oregon Health & Science University, Portland, OR USA ,grid.5288.70000 0000 9758 5690Oregon Clinical and Translational Research Institute, Portland, OR USA
| | - Priya Bhatt
- grid.5288.70000 0000 9758 5690Division of Psychology, Department of Psychiatry, Oregon Health & Science University, Portland, OR USA
| | - Jonathan Mill
- grid.8391.30000 0004 1936 8024University of Exeter Medical School, Exeter University, Exeter, UK
| | - Joel T. Nigg
- grid.5288.70000 0000 9758 5690Division of Psychology, Department of Psychiatry, Oregon Health & Science University, Portland, OR USA ,grid.5288.70000 0000 9758 5690Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR USA
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