1
|
de Sousa TR, Dt C, Novais F. Exploring the Hypothesis of a Schizophrenia and Bipolar Disorder Continuum: Biological, Genetic and Pharmacologic Data. CNS Neurol Disord Drug Targets 2023; 22:161-171. [PMID: 34477537 DOI: 10.2174/1871527320666210902164235] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 07/19/2021] [Accepted: 08/08/2021] [Indexed: 12/16/2022]
Abstract
Present time nosology has its roots in Kraepelin's demarcation of schizophrenia and bipolar disorder. However, accumulating evidence has shed light on several commonalities between the two disorders, and some authors have advocated for the consideration of a disease continuum. Here, we review previous genetic, biological and pharmacological findings that provide the basis for this conceptualization. There is a cross-disease heritability, and they share single-nucleotide polymorphisms in some common genes. EEG and imaging patterns have a number of similarities, namely reduced white matter integrity and abnormal connectivity. Dopamine, serotonin, GABA and glutamate systems have dysfunctional features, some of which are identical among the disorders. Finally, cellular calcium regulation and mitochondrial function are, also, impaired in the two.
Collapse
Affiliation(s)
- Teresa Reynolds de Sousa
- Department of Neurosciences and Mental Health, Centro Hospitalar Universitário Lisboa Norte (CHULN), Hospital de Santa Maria, Lisbon, Portugal
| | - Correia Dt
- Department of Neurosciences and Mental Health, Centro Hospitalar Universitário Lisboa Norte (CHULN), Hospital de Santa Maria, Lisbon, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
- ISAMB - Instituto de Saúde Ambiental, Lisboa, Portugal
| | - Filipa Novais
- Department of Neurosciences and Mental Health, Centro Hospitalar Universitário Lisboa Norte (CHULN), Hospital de Santa Maria, Lisbon, Portugal
- Faculdade de Medicina da Universidade de Lisboa, Lisboa, Portugal
- ISAMB - Instituto de Saúde Ambiental, Lisboa, Portugal
| |
Collapse
|
2
|
Ru FX, Kong F, Ren CY, He YS, Xia SY, Li YN, Liang YP, Feng JJ, Wei ZY, Chen JH. Repeated Winning and Losing Experiences in Chronic Social Conflicts Are Linked to RNA Editing Pattern Difference. Front Psychiatry 2022; 13:896794. [PMID: 35664469 PMCID: PMC9161819 DOI: 10.3389/fpsyt.2022.896794] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 04/25/2022] [Indexed: 02/05/2023] Open
Abstract
Winner-loser effects influence subsequent agonistic interactions between conspecifics. Previous winning experiences could strengthen future aggression and increase the chance of winning the next agonistic interaction, while previous losing experiences could have the opposite effect. Although the role of A-to-I RNA editing has been recently implicated in chronic social defeat stress and aggressive behavior, it remains to be further elucidated in chronic social conflicts in agonistic interactions, especially in the repeated aggression (winners) and repeated defeat (losers) resulted from these conflicts. In the current study, transcriptome-wide A-to-I RNA editing in the dorsal striatum was investigated in a mouse model of chronic social conflicts, and compared between mice repeatedly winning and losing daily agonistic interactions. Our analysis identified 622 A-to-I RNA editing sites in the mouse dorsal striatum, with 23 to be differentially edited in 22 genes, most of which had been previously associated with neurological, psychiatric, or immune disorders. Among these differential RNA editing (DRE) sites four missense variants were observed in neuroligin 2 (Nlgn2), Cdc42 guanine nucleotide exchange factor 9 (Arhgef9) BLCAP apoptosis inducing factor (Blcap), and cytoplasmic FMR1 interacting protein 2 (Cyfip2), as well as two noncoding RNA sites in small nucleolar RNA host gene 11 (Snhg11) and the maternally expressed 3 (Meg3) gene. Moreover, significant changes were observed in gene functions and pathways enriched by genes with A-to-I RNA editing in losers and especially winners compared to controls. Our results demonstrate that repeated winning and losing experiences in chronic social conflicts are linked to A-to-I RNA editing pattern difference, underlining its role in the molecular mechanism of agonistic interactions between conspecifics.
Collapse
Affiliation(s)
- Fu-Xia Ru
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| | - Fanzhi Kong
- Shantou University Mental Health Center, Shantou University Medical College, Shantou, China
| | - Chun-Yan Ren
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| | - Yu-Shan He
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| | - Shou-Yue Xia
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| | - Yu-Ning Li
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| | - Ya-Ping Liang
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| | - Jun-Jie Feng
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| | - Zhi-Yuan Wei
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| | - Jian-Huan Chen
- Laboratory of Genomic and Precision Medicine, Wuxi School of Medicine, Jiangnan University, Wuxi, China
- Joint Primate Research Center for Chronic Diseases, Institute of Zoology of Guangdong Academy of Science, Jiangnan University, Wuxi, China
- Jiangnan University Brain Institute, Wuxi, China
| |
Collapse
|
3
|
Duan J, Wei Y, Womer FY, Zhang X, Chang M, Zhu Y, Liu Z, Li C, Yin Z, Zhang R, Sun J, Wang P, Wang S, Jiang X, Wei S, Zhang Y, Tang Y, Wang F. Neurobiological substrates of major psychiatry disorders: transdiagnostic associations between white matter abnormalities, neuregulin 1 and clinical manifestation. J Psychiatry Neurosci 2021; 46:E506-E515. [PMID: 34467747 PMCID: PMC8526153 DOI: 10.1503/jpn.200166] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
BACKGROUND Schizophrenia, bipolar disorder and major depressive disorder are increasingly being conceptualized as a transdiagnostic continuum. Disruption of white matter is a common alteration in these psychiatric disorders, but the molecular mechanisms underlying the disruption remain unclear. Neuregulin 1 (NRG1) is genetically linked with susceptibility to schizophrenia, bipolar disorder and major depressive disorder, and it is also related to white matter. METHODS Using a transdiagnostic approach, we aimed to identify white matter differences associated with NRG1 and their relationship to transdiagnostic symptoms and cognitive function. We examined the white matter of 1051 participants (318 healthy controls and 733 patients with major psychiatric disorders: 254 with schizophrenia, 212 with bipolar disorder and 267 with major depressive disorder) who underwent diffusion tensor imaging. We measured the plasma NRG1-β1 levels of 331 participants. We also evaluated clinical symptoms and cognitive function. RESULTS In the patient group, abnormal white matter was negatively associated with NRG1-β1 levels in the genu of the corpus callosum, right uncinate fasciculus, bilateral inferior fronto-occipital fasciculus, right external capsule, fornix, right optic tract, left straight gyrus white matter and left olfactory radiation. These NRG1-associated white matter abnormalities were also associated with depression and anxiety symptoms and executive function in patients with a major psychiatric disorder. Furthermore, across the 3 disorders we observed analogous alterations in white matter, NRG1-β1 levels and clinical manifestations. LIMITATIONS Medication status, the wide age range and our cross-sectional findings were limitations of this study. CONCLUSION This study is the first to provide evidence for an association between NRG1, white matter abnormalities, clinical symptoms and cognition in a transdiagnostic psychiatric cohort. These findings provide further support for an understanding of the molecular mechanisms that underlie the neuroimaging substrates of major psychiatric disorders and their clinical implications.
Collapse
Affiliation(s)
- Jia Duan
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Yange Wei
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Fay Y Womer
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Xizhe Zhang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Miao Chang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Yue Zhu
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Zhuang Liu
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Chao Li
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Zhiyang Yin
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Ran Zhang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Jiaze Sun
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Pengshuo Wang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Shuai Wang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Xiaowei Jiang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Shengnan Wei
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Yanbo Zhang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Yanqing Tang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| | - Fei Wang
- From the Department of Psychiatry, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Duan, Zhu, Yin, R. Zhang, Sun, P. Wang, S. Wang, Tang, F. Wang); the Early Intervention Unit, Department of Psychiatry, Affiliated Nanjing Brain Hospital, Nanjing Medical University, Nanjing, PR China (Duan, Y. Wei, R. Zhang, F. Wang); the Department of Psychiatry and Behavioral Neuroscience, Saint Louis University, St. Louis, MO (Womer); the School of Biomedical Engineering and Informatics, Nanjing Medical University, Nanjing, Jiangsu, PR China (X. Zhang); the Department of Radiology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning, PR China (Chang, Li, Jiang, S.Wei); the School of Public Health, China Medical University, Shenyang, Liaoning, PR China (Liu); the Department of Psychiatry, College of Medicine, University of Saskatchewan, SK (Y. Zhang)
| |
Collapse
|
4
|
Ledonne A, Mercuri NB. On the Modulatory Roles of Neuregulins/ErbB Signaling on Synaptic Plasticity. Int J Mol Sci 2019; 21:ijms21010275. [PMID: 31906113 PMCID: PMC6981567 DOI: 10.3390/ijms21010275] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 12/27/2019] [Accepted: 12/29/2019] [Indexed: 12/14/2022] Open
Abstract
Neuregulins (NRGs) are a family of epidermal growth factor-related proteins, acting on tyrosine kinase receptors of the ErbB family. NRGs play an essential role in the development of the nervous system, since they orchestrate vital functions such as cell differentiation, axonal growth, myelination, and synapse formation. They are also crucially involved in the functioning of adult brain, by directly modulating neuronal excitability, neurotransmission, and synaptic plasticity. Here, we provide a review of the literature documenting the roles of NRGs/ErbB signaling in the modulation of synaptic plasticity, focusing on evidence reported in the hippocampus and midbrain dopamine (DA) nuclei. The emerging picture shows multifaceted roles of NRGs/ErbB receptors, which critically modulate different forms of synaptic plasticity (LTP, LTD, and depotentiation) affecting glutamatergic, GABAergic, and DAergic synapses, by various mechanisms. Further, we discuss the relevance of NRGs/ErbB-dependent synaptic plasticity in the control of brain processes, like learning and memory and the known involvement of NRGs/ErbB signaling in the modulation of synaptic plasticity in brain’s pathological conditions. Current evidence points to a central role of NRGs/ErbB receptors in controlling glutamatergic LTP/LTD and GABAergic LTD at hippocampal CA3–CA1 synapses, as well as glutamatergic LTD in midbrain DA neurons, thus supporting that NRGs/ErbB signaling is essential for proper brain functions, cognitive processes, and complex behaviors. This suggests that dysregulated NRGs/ErbB-dependent synaptic plasticity might contribute to mechanisms underlying different neurological and psychiatric disorders.
Collapse
Affiliation(s)
- Ada Ledonne
- Department of Experimental Neuroscience, Santa Lucia Foundation, Via del Fosso di Fiorano, no 64, 00143 Rome, Italy;
- Correspondence: ; Tel.: +3906-501703160; Fax: +3906-501703307
| | - Nicola B. Mercuri
- Department of Experimental Neuroscience, Santa Lucia Foundation, Via del Fosso di Fiorano, no 64, 00143 Rome, Italy;
- Department of Systems Medicine, University of Rome “Tor Vergata”, Via Montpellier no 1, 00133 Rome, Italy
| |
Collapse
|
5
|
Wang D, Guo T, Guo Q, Zhang S, Zhang J, Luo J. The Association Between Schizophrenia Risk Variants and Creativity in Healthy Han Chinese Subjects. Front Psychol 2019; 10:2218. [PMID: 31649580 PMCID: PMC6792478 DOI: 10.3389/fpsyg.2019.02218] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Accepted: 09/17/2019] [Indexed: 11/14/2022] Open
Abstract
Although previous evidence has suggested that there is a genetic link between schizophrenia and creativity, the specific genetic variants that underlie the link are still largely unknown. To further explore the potential genetic link between schizophrenia and creativity, in a sample of 580 healthy Han Chinese subjects, this study aimed to (1) validate the role of Neuregulin 1 (NRG1) rs6994992 (one schizophrenia risk variant that has been previously linked to creativity in the European population) in the relationship between schizophrenia and creativity and (2) explore the associations between 10 other schizophrenia risk variants and creativity. For NRG1 rs6994992, the result validated its association with creativity measures. However, since NRG1 rs6994992 is not a schizophrenia risk variant in the Han Chinese population, the validated association suggested that ethnic difference may exist in the relationship between NRG1 rs6994992, schizophrenia and creativity. For other schizophrenia risk variants, the result only demonstrated a nominal association between ZNF536 rs2053079 and creativity measures which would not survive correction for multiple testing. No association between polygenic risk score for these 10 schizophrenia risk variants and creativity measures was observed. In conclusion, this study provides limited evidence for the associations between these schizophrenia risk variants and creativity in healthy Han Chinese subjects. Future studies are warranted to better understand the potential genetic link between schizophrenia and creativity.
Collapse
Affiliation(s)
- Dan Wang
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, The Collaborative Innovation Center for Capital Education Development, Capital Normal University, Beijing, China
| | - Tingting Guo
- Beijing Gese Technology Co., Ltd., Beijing, China
| | - Qi Guo
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, The Collaborative Innovation Center for Capital Education Development, Capital Normal University, Beijing, China
| | - Shun Zhang
- Department of Psychology, Shandong Normal University, Jinan, China
| | - Jinghuan Zhang
- Department of Psychology, Shandong Normal University, Jinan, China
| | - Jing Luo
- Beijing Key Laboratory of Learning and Cognition, Department of Psychology, The Collaborative Innovation Center for Capital Education Development, Capital Normal University, Beijing, China
| | | |
Collapse
|
6
|
Kataria H, Alizadeh A, Karimi-Abdolrezaee S. Neuregulin-1/ErbB network: An emerging modulator of nervous system injury and repair. Prog Neurobiol 2019; 180:101643. [PMID: 31229498 DOI: 10.1016/j.pneurobio.2019.101643] [Citation(s) in RCA: 66] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Revised: 06/07/2019] [Accepted: 06/11/2019] [Indexed: 12/20/2022]
Abstract
Neuregulin-1 (Nrg-1) is a member of the Neuregulin family of growth factors with essential roles in the developing and adult nervous system. Six different types of Nrg-1 (Nrg-1 type I-VI) and over 30 isoforms have been discovered; however, their specific roles are not fully determined. Nrg-1 signals through a complex network of protein-tyrosine kinase receptors, ErbB2, ErbB3, ErbB4 and multiple intracellular pathways. Genetic and pharmacological studies of Nrg-1 and ErbB receptors have identified a critical role for Nrg-1/ErbB network in neurodevelopment including neuronal migration, neural differentiation, myelination as well as formation of synapses and neuromuscular junctions. Nrg-1 signaling is best known for its characterized role in development and repair of the peripheral nervous system (PNS) due to its essential role in Schwann cell development, survival and myelination. However, our knowledge of the impact of Nrg-1/ErbB on the central nervous system (CNS) has emerged in recent years. Ongoing efforts have uncovered a multi-faceted role for Nrg-1 in regulating CNS injury and repair processes. In this review, we provide a timely overview of the most recent updates on Nrg-1 signaling and its role in nervous system injury and diseases. We will specifically highlight the emerging role of Nrg-1 in modulating the glial and immune responses and its capacity to foster neuroprotection and remyelination in CNS injury. Nrg-1/ErbB network is a key regulatory pathway in the developing nervous system; therefore, unraveling its role in neuropathology and repair can aid in development of new therapeutic approaches for nervous system injuries and associated disorders.
Collapse
Affiliation(s)
- Hardeep Kataria
- Department of Physiology and Pathophysiology, Regenerative Medicine Program, Spinal Cord Research Centre, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Arsalan Alizadeh
- Department of Physiology and Pathophysiology, Regenerative Medicine Program, Spinal Cord Research Centre, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Soheila Karimi-Abdolrezaee
- Department of Physiology and Pathophysiology, Regenerative Medicine Program, Spinal Cord Research Centre, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada.
| |
Collapse
|
7
|
Olaya JC, Heusner CL, Matsumoto M, Shannon Weickert C, Karl T. Schizophrenia-relevant behaviours of female mice overexpressing neuregulin 1 type III. Behav Brain Res 2018; 353:227-235. [DOI: 10.1016/j.bbr.2018.03.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Revised: 03/15/2018] [Accepted: 03/15/2018] [Indexed: 12/20/2022]
|
8
|
Olaya JC, Heusner CL, Matsumoto M, Sinclair D, Kondo MA, Karl T, Shannon Weickert C. Overexpression of Neuregulin 1 Type III Confers Hippocampal mRNA Alterations and Schizophrenia-Like Behaviors in Mice. Schizophr Bull 2018; 44:865-875. [PMID: 28981869 PMCID: PMC6007747 DOI: 10.1093/schbul/sbx122] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Neuregulin 1 (NRG1) is a schizophrenia candidate gene whose protein product is involved in neuronal migration, survival, and synaptic plasticity via production of specific isoforms. Importantly, NRG1 type III (NRG1 III) mRNA is increased in humans inheriting a schizophrenia risk haplotype for the NRG1 gene (HapICE), and NRG1 protein levels can be elevated in schizophrenia. The nature by which NRG1 type III overexpression results in schizophrenia-like behavior and brain pathology remains unclear, therefore we constructed a transgenic mouse with Nrg1 III overexpression in forebrain neurons (CamKII kinase+). Here, we demonstrate construct validity for this mouse model, as juvenile and adult Nrg1 III transgenic mice exhibit an overexpression of Nrg1 III mRNA and Nrg1 protein in multiple brain regions. Furthermore, Nrg1 III transgenic mice have face validity as they exhibit schizophrenia-relevant behavioral phenotypes including deficits in social preference, impaired fear-associated memory, and reduced prepulse inhibition. Additionally, microarray assay of hippocampal mRNA uncovered transcriptional alterations downstream of Nrg1 III overexpression, including changes in serotonin receptor 2C and angiotensin-converting enzyme. Transgenic mice did not exhibit other schizophrenia-relevant behaviors including hyperactivity, social withdrawal, or an increased vulnerability to the effects of MK-801 malate. Our results indicate that this novel Nrg1 III mouse is valid for modeling potential pathological mechanisms of some schizophrenia-like behaviors, for determining what other neurobiological changes may be downstream of elevated NRG1 III levels and for preclinically testing therapeutic strategies that may be specifically efficacious in patients with the NRG1 (HapICE) risk genotype.
Collapse
Affiliation(s)
- Juan C Olaya
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia,School of Psychiatry, University of New South Wales, Sydney, Australia
| | | | | | - Duncan Sinclair
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia,School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Mari A Kondo
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia,School of Psychiatry, University of New South Wales, Sydney, Australia
| | - Tim Karl
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia,School of Medicine, Western Sydney University, Campbelltown, Australia
| | - Cynthia Shannon Weickert
- Schizophrenia Research Laboratory, Neuroscience Research Australia, Randwick, NSW, Australia,School of Psychiatry, University of New South Wales, Sydney, Australia,To whom correspondence should be addressed; Neuroscience Research Australia, Barker Street, Randwick, NSW 2031, Australia; tel: +61-2-9399-1117, fax: +61-2-9399-1005, e-mail:
| |
Collapse
|
9
|
Ledonne A, Mango D, Latagliata EC, Chiacchierini G, Nobili A, Nisticò R, D'Amelio M, Puglisi-Allegra S, Mercuri NB. Neuregulin 1/ErbB signalling modulates hippocampal mGluRI-dependent LTD and object recognition memory. Pharmacol Res 2018; 130:12-24. [PMID: 29427771 DOI: 10.1016/j.phrs.2018.02.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Revised: 01/19/2018] [Accepted: 02/02/2018] [Indexed: 01/05/2023]
Abstract
The neurotrophic factors neuregulins (NRGs) and their receptors, ErbB tyrosine kinases, regulate neurotransmission, synaptic plasticity and cognitive functions and their alterations have been associated to different neuropsychiatric disorders. Group 1 metabotropic glutamate receptors (mGluRI)-dependent mechanisms are also altered in animal models of neuropsychiatric diseases, especially mGluRI-induced glutamatergic long-term depression (mGluRI-LTD), a form of synaptic plasticity critically involved in learning and memory. Despite this evidence, a potential link between NRGs/ErbB signalling and mGluRI-LTD has never been considered. Here, we aimed to test the hypothesis that NRGs/ErbB signalling regulates mGluRI functions in the hippocampus, thus controlling CA1 pyramidal neurons excitability and synaptic plasticity as well as mGluRI-dependent behaviors. We investigated the functional interaction between NRG1/ErbB signalling and mGluRI in hippocampal CA1 pyramidal neurons, by analyzing the effect of a pharmacological modulation of NRG1/ErbB signalling on the excitation of pyramidal neurons and on the LTD at CA3-CA1 synapses induced by an mGluRI agonist. Furthermore, we verified the involvement of ErbB signalling in mGluRI-dependent learning processes, by evaluating the consequence of an intrahippocampal in vivo injection of a pan-ErbB inhibitor in the object recognition test in mice, a learning task dependent on hippocampal mGluRI. We found that NRG1 potentiates mGluRI-dependent functions on pyramidal neurons excitability and synaptic plasticity at CA3-CA1 synapses. Further, endogenous ErbB signalling per se regulates, through mGluRI, neuronal excitability and LTD in CA1 pyramidal neurons, since ErbB inhibition reduces mGluRI-induced neuronal excitation and mGluRI-LTD. In vivo intrahippocampal injection of the ErbB inhibitor, PD158780, impairs mGluRI-LTD at CA3-CA1 synapses and affects the exploratory behavior in the object recognition test. Thus, our results identify a key role for NRG1/ErbB signalling in the regulation of hippocampal mGluRI-dependent synaptic and cognitive functions, whose alteration might contribute to the pathogenesis of different brain diseases.
Collapse
Affiliation(s)
- Ada Ledonne
- Department of Experimental Neuroscience, Santa Lucia Foundation, Rome, Italy.
| | - Dalila Mango
- Pharmacology of Synaptic Disease Lab, European Brain Research Institute, Rome, Italy
| | | | - Giulia Chiacchierini
- Department of Psychology and "Daniel Bovet" Center, University "La Sapienza", Rome, Italy
| | - Annalisa Nobili
- Department of Experimental Neuroscience, Santa Lucia Foundation, Rome, Italy; Department of Medicine, University Campus-Biomedico, Rome, Italy
| | - Robert Nisticò
- Pharmacology of Synaptic Disease Lab, European Brain Research Institute, Rome, Italy; Department of Biology, University of Rome "Tor Vergata", Rome, Italy
| | - Marcello D'Amelio
- Department of Experimental Neuroscience, Santa Lucia Foundation, Rome, Italy; Department of Medicine, University Campus-Biomedico, Rome, Italy
| | - Stefano Puglisi-Allegra
- Department of Experimental Neuroscience, Santa Lucia Foundation, Rome, Italy; Department of Psychology and "Daniel Bovet" Center, University "La Sapienza", Rome, Italy
| | - Nicola Biagio Mercuri
- Department of Experimental Neuroscience, Santa Lucia Foundation, Rome, Italy; Department of Systems Medicine, University of Rome "Tor Vergata", Rome, Italy
| |
Collapse
|
10
|
Yang YR, Jung JH, Kim SJ, Hamada K, Suzuki A, Kim HJ, Lee JH, Kwon OB, Lee YK, Kim J, Kim EK, Jang HJ, Kang DS, Choi JS, Lee CJ, Marshall J, Koh HY, Kim CJ, Seok H, Kim SH, Choi JH, Choi YB, Cocco L, Ryu SH, Kim JH, Suh PG. Forebrain-specific ablation of phospholipase Cγ1 causes manic-like behavior. Mol Psychiatry 2017; 22:1473-82. [PMID: 28138157 DOI: 10.1038/mp.2016.261] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Revised: 10/20/2016] [Accepted: 12/06/2016] [Indexed: 02/06/2023]
Abstract
Manic episodes are one of the major diagnostic symptoms in a spectrum of neuropsychiatric disorders that include schizophrenia, obsessive-compulsive disorder and bipolar disorder (BD). Despite a possible association between BD and the gene encoding phospholipase Cγ1 (PLCG1), its etiological basis remains unclear. Here, we report that mice lacking phospholipase Cγ1 (PLCγ1) in the forebrain (Plcg1f/f; CaMKII) exhibit hyperactivity, decreased anxiety-like behavior, reduced depressive-related behavior, hyperhedonia, hyperphagia, impaired learning and memory and exaggerated startle responses. Inhibitory transmission in hippocampal pyramidal neurons and striatal dopamine receptor D1-expressing neurons of Plcg1-deficient mice was significantly reduced. The decrease in inhibitory transmission is likely due to a reduced number of γ-aminobutyric acid (GABA)-ergic boutons, which may result from impaired localization and/or stabilization of postsynaptic CaMKII (Ca2+/calmodulin-dependent protein kinase II) at inhibitory synapses. Moreover, mutant mice display impaired brain-derived neurotrophic factor-tropomyosin receptor kinase B-dependent synaptic plasticity in the hippocampus, which could account for deficits of spatial memory. Lithium and valproate, the drugs presently used to treat mania associated with BD, rescued the hyperactive phenotypes of Plcg1f/f; CaMKII mice. These findings provide evidence that PLCγ1 is critical for synaptic function and plasticity and that the loss of PLCγ1 from the forebrain results in manic-like behavior.
Collapse
|
11
|
Borovok N, Nesher E, Reichenstein M, Tikhonova T, Levin Y, Pinhasov A, Michaelevski I. Effect of social interactions on hippocampal protein expression in animal dominant and submissive model of behavioral disorders. Proteomics Clin Appl 2017; 11. [DOI: 10.1002/prca.201700089] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2017] [Revised: 06/07/2017] [Accepted: 06/26/2017] [Indexed: 02/02/2023]
Affiliation(s)
- Natalia Borovok
- Department of Biochemistry and Molecular Biology; Tel Aviv University; Tel-Aviv Israel
| | | | - Michal Reichenstein
- Department of Biochemistry and Molecular Biology; Tel Aviv University; Tel-Aviv Israel
| | | | - Yishai Levin
- de Botton Institute for Protein Profiling; The Nancy & Stephen Grand Israel National Center for Personalized Medicine; Weizmann Institute of Science; Rehovot Israel
| | - Albert Pinhasov
- Department of Molecular Biology; Ariel University; Ariel Israel
| | - Izhak Michaelevski
- Department of Molecular Biology; Ariel University; Ariel Israel
- Department of Biochemistry and Molecular Biology; Tel Aviv University; Tel-Aviv Israel
- Sagol School of Neuroscience; Tel Aviv University; Tel Aviv Israel
| |
Collapse
|
12
|
Zhang Z, Huang J, Shen Y, Li R. BACE1-Dependent Neuregulin-1 Signaling: An Implication for Schizophrenia. Front Mol Neurosci 2017; 10:302. [PMID: 28993723 PMCID: PMC5622153 DOI: 10.3389/fnmol.2017.00302] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Accepted: 09/07/2017] [Indexed: 12/13/2022] Open
Abstract
Schizophrenia is a chronic psychiatric disorder with a lifetime prevalence of about 1% in the general population. Recent studies have shown that Neuregulin-1 (Nrg1) is a candidate gene for schizophrenia. At least 15 alternative splicing of NRG1 isoforms all contain an extracellular epidermal growth factor (EGF)-like domain, which is sufficient for Nrg1 biological activity including the formation of myelin sheaths and the regulation of synaptic plasticity. It is known that Nrg1 can be cleaved by β-secretase (BACE1) and the resulting N-terminal fragment (Nrg1-ntf) binds to receptor tyrosine kinase ErbB4, which activates Nrg1/ErbB4 signaling. While changes in Nrg1 expression levels in schizophrenia still remain controversial, understanding the BACE1-cleaved Nrg1-ntf and Nrg1/ErbB4 signaling in schizophrenia neuropathogenesis is essential and important. In this review paper, we included three major parts: (1) Nrg1 structure and cleavage pattern by BACE1; (2) BACE1-dependent Nrg1 cleavage associated with schizophrenia in human studies; and (3) Animal studies of Nrg1 and BACE1 mutations with behavioral observations. Our review will provide a better understanding of Nrg1 in schizophrenia and a potential strategy for using BACE1 cleavage of Nrg1 as a unique biomarker for diagnosis, as well as a new therapeutic target, of schizophrenia.
Collapse
Affiliation(s)
- Zhengrong Zhang
- National Clinical Research Center for Mental Disorders, Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical UniversityBeijing, China
| | - Jing Huang
- National Clinical Research Center for Mental Disorders, Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical UniversityBeijing, China
| | - Yong Shen
- Neurodegenerative Disorder Research Center, School of Life Sciences, University of Science and Technology of ChinaHefei, China.,Center for Therapeutic Strategies for Brain Disorders, Roskamp Institute, SarasotaFL, United States.,Center for Hormone Advanced Science and Education, Roskamp Institute, SarasotaFL, United States
| | - Rena Li
- National Clinical Research Center for Mental Disorders, Beijing Key Laboratory of Mental Disorders, Beijing Anding Hospital, Capital Medical UniversityBeijing, China.,Center for Therapeutic Strategies for Brain Disorders, Roskamp Institute, SarasotaFL, United States.,Center for Hormone Advanced Science and Education, Roskamp Institute, SarasotaFL, United States.,Beijing Institute for Brain Disorders, Capital Medical UniversityBeijing, China
| |
Collapse
|
13
|
Yasuno F, Kudo T, Yamamoto A, Matsuoka K, Takahashi M, Iida H, Ihara M, Nagatsuka K, Kishimoto T. Significant correlation between openness personality in normal subjects and brain myelin mapping with T1/T2-weighted MR imaging. Heliyon 2017; 3:e00411. [PMID: 28971152 PMCID: PMC5614635 DOI: 10.1016/j.heliyon.2017.e00411] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2017] [Revised: 08/26/2017] [Accepted: 09/15/2017] [Indexed: 11/26/2022] Open
Abstract
Background The objective of this study was to examine the relationship between the myelination and the psychological trait of openness to experience in young cognitively normal volunteers using regional T1-weighted (T1w)/T2w ratios on magnetic resonance imaging (MRI). It was hypothesized that axonal myelination would be related to openness, thus linking trait creativity and mental illness. Methods We recruited 37 healthy subjects and administered the NEO Five-Factor Inventory to assess personality factors. Regional T1w/T2w MRI values were computed as surrogate indicators of myelination status and correlations between T1w/T2w values and various personality factors (e.g., trait of openness) were calculated with a voxel-based analysis using statistical parametric mapping. Results Significant negative correlations were identified between the trait of openness and T1w/T2w values in the medial frontal cortex, anterior cingulate cortex, posterior cingulate cortex, and posterior insula/adjacent putamen. These relationships remained significant even after adjusting for age, sex, and education as covariates. There were no significant correlations between other personality factors and regional volumes. Conclusions Individual differences in openness may be associated with variations in intra-cortical myelination, specifically in the imaginative network of the brain including the midline core ‘hubs’ of the default mode network (anterior cingulate/medial frontal cortex and posterior cingulate cortex) and regions related to motivational state (posterior insula and adjacent putamen). Signal interference related to decreased myelination may facilitate flexible imagination and the trait of openness. Our findings assist in understanding the relationship between myelination and openness, as a link between creativity and mental illness.
Collapse
Affiliation(s)
- Fumihiko Yasuno
- Department of Psychiatry, Nara Medical University, Kashihara, Japan.,Department of Neurology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Takashi Kudo
- Department of Psychiatry, Osaka University Health Care Center, Toyonaka, Japan
| | - Akihide Yamamoto
- Investigative Radiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kiwamu Matsuoka
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
| | - Masato Takahashi
- Department of Psychiatry, Nara Medical University, Kashihara, Japan
| | - Hidehiro Iida
- Investigative Radiology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Masafumi Ihara
- Department of Neurology, National Cerebral and Cardiovascular Center, Suita, Japan
| | - Kazuyuki Nagatsuka
- Department of Neurology, National Cerebral and Cardiovascular Center, Suita, Japan
| | | |
Collapse
|
14
|
Vaht M, Laas K, Kiive E, Parik J, Veidebaum T, Harro J. A functional neuregulin-1 gene variant and stressful life events: Effect on drug use in a longitudinal population-representative cohort study. J Psychopharmacol 2017; 31:54-61. [PMID: 27353026 DOI: 10.1177/0269881116655979] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND The neuregulin 1 gene is a susceptibility gene for substance dependence. A functional polymorphism (SNP8NRG243177/rs6994992; C/T) in the promoter region of the brain-specific type IV neuregulin-1 gene ( NRG1) has been associated with psychiatric disorders (e.g. schizophrenia and bipolar disorder) that often present higher odds of smoking, alcohol and illicit drug use. This study assessed the association of the NRG1 genotype with drug use and possible interaction with stressful life events (SLEs). METHODS The database of the Estonian Children Personality Behaviour and Health Study (beginning in 1998) was used. Cohorts of children initially 9 years old ( n=583; followed up at 15 and 18 years) and 15 years old ( n=593; followed up at 18 and 25 years) provided self-reports on alcohol, tobacco and illicit substance use and SLEs. Psychiatric assessment based on DSM-IV was carried out on the older birth cohort at age 25 to assess the lifetime presence of substance use disorders. NRG1 rs6994992 was genotyped in all participants by TaqMan® Pre-Designed SNP Genotyping Assay on the Applied Biosystems ViiA™ 7 Real-Time PCR System. The minor (T) allele frequency was 0.37. RESULTS NRG1 rs6994992 C/C homozygotes, especially those who had experienced more SLEs, were more likely to develop alcohol use disorders by young adulthood, were generally more active consumers of tobacco products, and had more likely used illicit drugs. In T allele carriers, SLEs had a negligible effect on substance use. CONCLUSIONS In humans, NRG1 genotype is associated with substance use, and this relationship is moderated by adverse life events, with a gain-of-function allele being protective.
Collapse
Affiliation(s)
- Mariliis Vaht
- 1 Division of Neuropsychopharmacology, Department of Psychology, Estonian Centre of Behavioural and Health Sciences, University of Tartu, Tartu, Estonia
| | - Kariina Laas
- 1 Division of Neuropsychopharmacology, Department of Psychology, Estonian Centre of Behavioural and Health Sciences, University of Tartu, Tartu, Estonia
| | - Evelyn Kiive
- 2 Division of Special Education, Department of Education, University of Tartu, Tartu, Estonia
| | - Jüri Parik
- 3 Department of Molecular and Cell Biology, University of Tartu, Tartu, Estonia
| | - Toomas Veidebaum
- 4 National Institute for Health Development, Estonian Centre of Behavioural and Health Sciences, Tallinn, Estonia
| | - Jaanus Harro
- 1 Division of Neuropsychopharmacology, Department of Psychology, Estonian Centre of Behavioural and Health Sciences, University of Tartu, Tartu, Estonia
| |
Collapse
|
15
|
Chen X, Long F, Cai B, Chen X, Qin L, Chen G. A Novel Relationship for Schizophrenia, Bipolar, and Major Depressive Disorder. Part 8: a Hint from Chromosome 8 High Density Association Screen. Mol Neurobiol 2017; 54:5868-82. [DOI: 10.1007/s12035-016-0102-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Accepted: 09/06/2016] [Indexed: 12/21/2022]
|
16
|
Mostaid MS, Lloyd D, Liberg B, Sundram S, Pereira A, Pantelis C, Karl T, Weickert CS, Everall IP, Bousman CA. Neuregulin-1 and schizophrenia in the genome-wide association study era. Neurosci Biobehav Rev 2016; 68:387-409. [DOI: 10.1016/j.neubiorev.2016.06.001] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 05/30/2016] [Accepted: 06/03/2016] [Indexed: 12/22/2022]
|
17
|
Hou L, Bergen SE, Akula N, Song J, Hultman CM, Landén M, Adli M, Alda M, Ardau R, Arias B, Aubry JM, Backlund L, Badner JA, Barrett TB, Bauer M, Baune BT, Bellivier F, Benabarre A, Bengesser S, Berrettini WH, Bhattacharjee AK, Biernacka JM, Birner A, Bloss CS, Brichant-Petitjean C, Bui ET, Byerley W, Cervantes P, Chillotti C, Cichon S, Colom F, Coryell W, Craig DW, Cruceanu C, Czerski PM, Davis T, Dayer A, Degenhardt F, Del Zompo M, DePaulo JR, Edenberg HJ, Étain B, Falkai P, Foroud T, Forstner AJ, Frisén L, Frye MA, Fullerton JM, Gard S, Garnham JS, Gershon ES, Goes FS, Greenwood TA, Grigoroiu-Serbanescu M, Hauser J, Heilbronner U, Heilmann-Heimbach S, Herms S, Hipolito M, Hitturlingappa S, Hoffmann P, Hofmann A, Jamain S, Jiménez E, Kahn JP, Kassem L, Kelsoe JR, Kittel-Schneider S, Kliwicki S, Koller DL, König B, Lackner N, Laje G, Lang M, Lavebratt C, Lawson WB, Leboyer M, Leckband SG, Liu C, Maaser A, Mahon PB, Maier W, Maj M, Manchia M, Martinsson L, McCarthy MJ, McElroy SL, McInnis MG, McKinney R, Mitchell PB, Mitjans M, Mondimore FM, Monteleone P, Mühleisen TW, Nievergelt CM, Nöthen MM, Novák T, Nurnberger JI, Nwulia EA, Ösby U, Pfennig A, Potash JB, Propping P, Reif A, Reininghaus E, Rice J, Rietschel M, Rouleau GA, Rybakowski JK, Schalling M, Scheftner WA, Schofield PR, Schork NJ, Schulze TG, Schumacher J, Schweizer BW, Severino G, Shekhtman T, Shilling PD, Simhandl C, Slaney CM, Smith EN, Squassina A, Stamm T, Stopkova P, Streit F, Strohmaier J, Szelinger S, Tighe SK, Tortorella A, Turecki G, Vieta E, Volkert J, Witt SH, Wright A, Zandi PP, Zhang P, Zollner S, McMahon FJ. Genome-wide association study of 40,000 individuals identifies two novel loci associated with bipolar disorder. Hum Mol Genet 2016; 25:3383-3394. [PMID: 27329760 DOI: 10.1093/hmg/ddw181] [Citation(s) in RCA: 127] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 05/23/2016] [Accepted: 06/09/2016] [Indexed: 12/31/2022] Open
Abstract
Bipolar disorder (BD) is a genetically complex mental illness characterized by severe oscillations of mood and behaviour. Genome-wide association studies (GWAS) have identified several risk loci that together account for a small portion of the heritability. To identify additional risk loci, we performed a two-stage meta-analysis of >9 million genetic variants in 9,784 bipolar disorder patients and 30,471 controls, the largest GWAS of BD to date. In this study, to increase power we used ∼2,000 lithium-treated cases with a long-term diagnosis of BD from the Consortium on Lithium Genetics, excess controls, and analytic methods optimized for markers on the X-chromosome. In addition to four known loci, results revealed genome-wide significant associations at two novel loci: an intergenic region on 9p21.3 (rs12553324, P = 5.87 × 10 - 9; odds ratio (OR) = 1.12) and markers within ERBB2 (rs2517959, P = 4.53 × 10 - 9; OR = 1.13). No significant X-chromosome associations were detected and X-linked markers explained very little BD heritability. The results add to a growing list of common autosomal variants involved in BD and illustrate the power of comparing well-characterized cases to an excess of controls in GWAS.
Collapse
Affiliation(s)
- Liping Hou
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health,U.S. Department of Health & Human Services, Bethesda, MD, USA
| | - Sarah E Bergen
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Stanley Center for Psychiatric Research, The Broad Institute of MIT and Harvard, Cambridge, MA, USA
| | - Nirmala Akula
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health,U.S. Department of Health & Human Services, Bethesda, MD, USA
| | - Jie Song
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Christina M Hultman
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Mikael Landén
- Institute of Neuroscience and Physiology, The Sahlgrenska Academy at Gothenburg University, Gothenburg, Sweden.,Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Mazda Adli
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - Martin Alda
- Department of Psychiatry, Dalhousie University, Halifax, Canada
| | - Raffaella Ardau
- Unit of Clinical Pharmacology, Hospital University Agency of Cagliari, Cagliari, Italy
| | - Bárbara Arias
- Department of Biologia Animal, Unitat d'Antropologia (Dp. Biología Animal), Facultat de Biologia and Institut de Biomedicina (IBUB), Universitat de Barcelona, CIBERSAM, Barcelona, Spain
| | - Jean-Michel Aubry
- Department of Mental Health and Psychiatry, Mood Disorders Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Lena Backlund
- Department of Molecular Medicine and Surgery, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Judith A Badner
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | | | - Michael Bauer
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - Bernhard T Baune
- Discipline of Psychiatry, University of Adelaide, Adelaide, Australia
| | - Frank Bellivier
- INSERM UMR-S 1144 - Université Paris Diderot. Pôle de Psychiatrie, AP-HP, Groupe Hospitalier Lariboisière-F. Widal, Paris, France
| | - Antonio Benabarre
- Bipolar Disorder Program, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Susanne Bengesser
- Special Outpatient Center for Bipolar Affective Disorder, Medical University of Graz, Graz, Austria
| | - Wade H Berrettini
- Department of Psychiatry, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Joanna M Biernacka
- Department of Health Sciences Research, Mayo Clinic, Rochester, MN, USA.,Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
| | - Armin Birner
- Special Outpatient Center for Bipolar Affective Disorder, Medical University of Graz, Graz, Austria
| | | | - Clara Brichant-Petitjean
- INSERM UMR-S 1144 - Université Paris Diderot. Pôle de Psychiatrie, AP-HP, Groupe Hospitalier Lariboisière-F. Widal, Paris, France
| | - Elise T Bui
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health,U.S. Department of Health & Human Services, Bethesda, MD, USA
| | - William Byerley
- Department of Psychiatry, University of California at San Francisco, San Francisco, CA, USA
| | - Pablo Cervantes
- McGill University Health Centre, Mood Disorders Program, Montreal, QC, Canada
| | - Caterina Chillotti
- Unit of Clinical Pharmacology, Hospital University Agency of Cagliari, Cagliari, Italy
| | - Sven Cichon
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany.,Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Germany.,Division of Medical Genetics and Department of Biomedicine, University of Basel, Switzerland
| | - Francesc Colom
- Bipolar Disorder Program, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - William Coryell
- University of Iowa Hospitals and Clinics, Iowa City, IA, USA
| | - David W Craig
- The Translational Genomics Research Institute, Phoenix, AZ, USA
| | - Cristiana Cruceanu
- Douglas Mental Health University Institute, McGill University, Montreal, Canada
| | - Piotr M Czerski
- Psychiatric Genetic Unit, Poznan University of Medical Sciences, Poznan, Poland
| | - Tony Davis
- Discipline of Psychiatry, University of Adelaide, Adelaide, Australia
| | - Alexandre Dayer
- Department of Mental Health and Psychiatry, Mood Disorders Unit, Geneva University Hospitals, Geneva, Switzerland
| | - Franziska Degenhardt
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Maria Del Zompo
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - J Raymond DePaulo
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Howard J Edenberg
- Department of Biochemistry and Molecular Biology, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Bruno Étain
- INSERM U955, Psychiatrie translationnelle, Université Paris Est Créteil, Pôle de Psychiatrie et d'Addictologie, Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Peter Falkai
- Department of Psychiatry and Psychotherapy, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Tatiana Foroud
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Andreas J Forstner
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Louise Frisén
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Child and Adolescent Psychiatry Research Center, Stockholm, Sweden
| | - Mark A Frye
- Department of Psychiatry and Psychology, Mayo Clinic, Rochester, MN, USA
| | - Janice M Fullerton
- Psychiatric Genetics, Neuroscience Research Australia, Sydney, Australia.,School of Medical Sciences, University of New South Wales, Sydney, NSW, 2052, Australia
| | - Sébastien Gard
- Service de Psychiatrie, Hôpital Charles Perrens, Bordeaux, France
| | - Julie S Garnham
- Department of Psychiatry, Dalhousie University, Halifax, Canada
| | - Elliot S Gershon
- Department of Psychiatry and Behavioral Neuroscience, University of Chicago, Chicago, IL, USA
| | - Fernando S Goes
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Tiffany A Greenwood
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - Maria Grigoroiu-Serbanescu
- Biometric Psychiatric Genetics Research Unit, Alexandru Obregia Clinical Psychiatric Hospital, Bucharest, Romania
| | - Joanna Hauser
- Psychiatric Genetic Unit, Poznan University of Medical Sciences, Poznan, Poland
| | - Urs Heilbronner
- Institute of Psychiatric Phenomics and Genomics, Ludwig-Maximilians-University Munich, Munich, Germany.,Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August University Göttingen, Göttingen, Germany
| | - Stefanie Heilmann-Heimbach
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Stefan Herms
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany.,Division of Medical Genetics and Department of Biomedicine, University of Basel, Switzerland
| | - Maria Hipolito
- Department of Psychiatry and Behavioral Sciences, Howard University Hospital, Washington, DC, USA
| | | | - Per Hoffmann
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany.,Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Germany.,Division of Medical Genetics and Department of Biomedicine, University of Basel, Switzerland
| | - Andrea Hofmann
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Stephane Jamain
- INSERM U955, Psychiatrie translationnelle, Université Paris Est Créteil, Pôle de Psychiatrie et d'Addictologie, Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Esther Jiménez
- Bipolar Disorder Program, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Jean-Pierre Kahn
- Service de Psychiatrie et Psychologie Clinique, Centre Psychothérapique de Nancy - Université de Lorraine, Nancy, France
| | - Layla Kassem
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health,U.S. Department of Health & Human Services, Bethesda, MD, USA
| | - John R Kelsoe
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - Sarah Kittel-Schneider
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt, Germany
| | - Sebastian Kliwicki
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Daniel L Koller
- Department of Medical and Molecular Genetics, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Barbara König
- Department of Psychiatry and Psychotherapeuthic Medicine, Landesklinikum Neunkirchen, Neunkirchen, Austria
| | - Nina Lackner
- Special Outpatient Center for Bipolar Affective Disorder, Medical University of Graz, Graz, Austria
| | - Gonzalo Laje
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health,U.S. Department of Health & Human Services, Bethesda, MD, USA
| | - Maren Lang
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Catharina Lavebratt
- Department of Molecular Medicine and Surgery, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - William B Lawson
- Department of Psychiatry and Behavioral Sciences, Howard University Hospital, Washington, DC, USA
| | - Marion Leboyer
- INSERM U955, Psychiatrie translationnelle, Université Paris Est Créteil, Pôle de Psychiatrie et d'Addictologie, Hôpitaux Universitaires Henri Mondor, Créteil, France
| | - Susan G Leckband
- Department of Pharmacy, VA San Diego Healthcare System, San Diego, CA, USA
| | - Chunyu Liu
- Department of Psychiatry, University of Illinois at Chicago, Chicago, IL, USA
| | - Anna Maaser
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Pamela B Mahon
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | | | - Mario Maj
- Department of Psychiatry, University of Naples SUN, Naples, Italy
| | - Mirko Manchia
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy.,Department of Pharmacology, Dalhousie University, Halifax, NS, Canada
| | - Lina Martinsson
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | - Michael J McCarthy
- Department of Psychiatry, VA San Diego Healthcare System, San Diego, CA, USA
| | - Susan L McElroy
- Lindner Center of HOPE, University of Cincinnati College of Medicine, Mason, OH, USA
| | - Melvin G McInnis
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Rebecca McKinney
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - Philip B Mitchell
- School of Psychiatry, University of New South Wales, and Black Dog Institute, Sydney, Australia
| | - Marina Mitjans
- Department of Biologia Animal, Unitat d'Antropologia (Dp. Biología Animal), Facultat de Biologia and Institut de Biomedicina (IBUB), Universitat de Barcelona, CIBERSAM, Barcelona, Spain
| | - Francis M Mondimore
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Palmiero Monteleone
- Department of Psychiatry, University of Naples SUN, Naples, Italy.,Neurosciences Section, Department of Medicine and Surgery, University of Salerno, Salerno, Italy
| | - Thomas W Mühleisen
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany.,Institute of Neuroscience and Medicine (INM-1), Research Centre Jülich, Germany
| | | | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Tomas Novák
- National Institute of Mental Health, Klecany, Czech Republic
| | - John I Nurnberger
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Evaristus A Nwulia
- Department of Psychiatry and Behavioral Sciences, Howard University Hospital, Washington, DC, USA
| | - Urban Ösby
- Department of Neurobiology, Care Sciences, and Society, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Andrea Pfennig
- Department of Psychiatry and Psychotherapy, University Hospital Carl Gustav Carus, Technische Universität, Dresden, Germany
| | - James B Potash
- Department of Psychiatry, Carver College of Medicine, University of Iowa School of Medicine, Iowa City, IA, USA
| | - Peter Propping
- Institute of Human Genetics, University of Bonn, Germany
| | - Andreas Reif
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt, Germany
| | - Eva Reininghaus
- Special Outpatient Center for Bipolar Affective Disorder, Medical University of Graz, Graz, Austria
| | - John Rice
- Department of Psychiatry, Washington University School of Medicine in St. Louis
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Guy A Rouleau
- Montreal Neurological Institute and Hospital, McGill University, Montreal, Canada
| | - Janusz K Rybakowski
- Department of Adult Psychiatry, Poznan University of Medical Sciences, Poznan, Poland
| | - Martin Schalling
- Department of Molecular Medicine and Surgery, Karolinska Institutet and Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
| | | | - Peter R Schofield
- School of Medical Sciences, University of New South Wales, Sydney, NSW, 2052, Australia.,Mental Illness, Neuroscience Research Australia, Sydney, Australia
| | | | - Thomas G Schulze
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health,U.S. Department of Health & Human Services, Bethesda, MD, USA.,Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA.,Institute of Psychiatric Phenomics and Genomics, Ludwig-Maximilians-University Munich, Munich, Germany.,Department of Psychiatry and Psychotherapy, University Medical Center (UMG), Georg-August University Göttingen, Göttingen, Germany.,Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Johannes Schumacher
- Institute of Human Genetics, University of Bonn, Germany.,Department of Genomics, Life & Brain Center, University of Bonn, Bonn, Germany
| | - Barbara W Schweizer
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Giovanni Severino
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Tatyana Shekhtman
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | - Paul D Shilling
- Department of Psychiatry, University of California San Diego, San Diego, CA, USA
| | | | - Claire M Slaney
- Department of Psychiatry, Dalhousie University, Halifax, Canada
| | - Erin N Smith
- Scripps Translational Science Institute, La Jolla, CA, USA
| | - Alessio Squassina
- Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
| | - Thomas Stamm
- Department of Psychiatry and Psychotherapy, Charité - Universitätsmedizin Berlin, Campus Charité Mitte, Berlin, Germany
| | - Pavla Stopkova
- National Institute of Mental Health, Klecany, Czech Republic
| | - Fabian Streit
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Jana Strohmaier
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | | | - Sarah K Tighe
- Department of Psychiatry, Carver College of Medicine, University of Iowa School of Medicine, Iowa City, IA, USA
| | | | - Gustavo Turecki
- Douglas Mental Health University Institute, McGill University, Montreal, Canada
| | - Eduard Vieta
- Bipolar Disorder Program, Institute of Neuroscience, Hospital Clinic, University of Barcelona, IDIBAPS, CIBERSAM, Barcelona, Catalonia, Spain
| | - Julia Volkert
- Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, University Hospital Frankfurt, Frankfurt, Germany
| | - Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Adam Wright
- School of Psychiatry, University of New South Wales, and Black Dog Institute, Sydney, Australia
| | - Peter P Zandi
- Department of Mental Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA
| | - Peng Zhang
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Sebastian Zollner
- Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA
| | - Francis J McMahon
- Intramural Research Program, National Institute of Mental Health, National Institutes of Health,U.S. Department of Health & Human Services, Bethesda, MD, USA,
| |
Collapse
|
18
|
Sarıçiçek A, Zorlu N, Yalın N, Hıdıroğlu C, Çavuşoğlu B, Ceylan D, Ada E, Tunca Z, Özerdem A. Abnormal white matter integrity as a structural endophenotype for bipolar disorder. Psychol Med 2016; 46:1547-1558. [PMID: 26947335 DOI: 10.1017/s0033291716000180] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND Several lines of evidence suggest that bipolar disorder (BD) is associated with white matter (WM) pathology. Investigation of unaffected first-degree relatives of BD patients may help to distinguish structural biomarkers of genetic risk without the confounding effects of burden of illness, medication or clinical state. In the present study, we applied tract-based spatial statistics to study WM changes in patients with BD, unaffected siblings and controls. METHOD A total of 27 euthymic patients with BD type I, 20 unaffected siblings of bipolar patients and 29 healthy controls who did not have any current or past diagnosis of Axis I psychiatric disorders were enrolled in the study. RESULTS Fractional anisotropy (FA) was significantly lower in BD patients than in the control group in the corpus callosum, fornix, bilateral superior longitudinal fasciculus, inferior longitudinal fasciculus, inferior fronto-occipital fasciculus, anterior thalamic radiation, posterior thalamic radiation, cingulum, uncinate fasciculus, superior corona radiata, anterior corona radiata and left external capsule. In region-of-interest (ROI) analyses, we found that both unaffected siblings and bipolar patients had significantly reduced FA in the left posterior thalamic radiation, the left sagittal stratum, and the fornix compared with healthy controls. Average FA for unaffected siblings was intermediate between the healthy controls and bipolar patients within these ROIs. CONCLUSIONS Decreased FA in the fornix, left posterior thalamic radiation and left sagittal stratum in both bipolar patients and unaffected siblings may represent a potential structural endophenotype or a trait-based marker for BD.
Collapse
Affiliation(s)
- A Sarıçiçek
- Department of Psychiatry,Faculty of Medicine,Izmir Katip Celebi University,Ataturk Training and Research Hospital,Izmir,Turkey
| | - N Zorlu
- Department of Psychiatry,Faculty of Medicine,Izmir Katip Celebi University,Ataturk Training and Research Hospital,Izmir,Turkey
| | - N Yalın
- Department of Neuroscience,Health Sciences Institute,Dokuz Eylul University,Izmir,Turkey
| | - C Hıdıroğlu
- Department of Neuroscience,Health Sciences Institute,Dokuz Eylul University,Izmir,Turkey
| | - B Çavuşoğlu
- Department of Neuroscience,Health Sciences Institute,Dokuz Eylul University,Izmir,Turkey
| | - D Ceylan
- Department of Neuroscience,Health Sciences Institute,Dokuz Eylul University,Izmir,Turkey
| | - E Ada
- Department of Radiology,Faculty of Medicine,Dokuz Eylul University,Izmir,Turkey
| | - Z Tunca
- Department of Neuroscience,Health Sciences Institute,Dokuz Eylul University,Izmir,Turkey
| | - A Özerdem
- Department of Neuroscience,Health Sciences Institute,Dokuz Eylul University,Izmir,Turkey
| |
Collapse
|
19
|
Kato T, Abe Y, Hirokawa S, Iwakura Y, Mizuno M, Namba H, Nawa H. Neurobehavioral Differences Between Mice Receiving Distinct Neuregulin Variants as Neonates; Impact on Sensitivity to MK-801. Curr Mol Med 2016; 15:222-36. [PMID: 25817857 PMCID: PMC4475761 DOI: 10.2174/1566524015666150330143300] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2014] [Revised: 02/20/2015] [Accepted: 03/25/2015] [Indexed: 12/29/2022]
Abstract
Neuregulin-1 (NRG1) is a well-recognized risk gene for schizophrenia and is often implicated in the neurodevelopmental hypothesis of this illness. Alternative splicing and proteolytic processing of the NRG1 gene produce more than 30 structural variants; however, the neuropathological roles of individual variants remain to be characterized. On the basis of the neurodevelopmental hypothesis of schizophrenia, we administered eNRG1 (0.1~1.0 μg/g), a core epidermal growth factor-like (EGF) domain common for all splicing NRG1 variants, to neonatal mice and compared their behavioral performance with mice challenged with a full mature form of type 1 NRG1 variant. During the neonatal stage, recombinant eNRG1 protein administrated from the periphery passed the blood-brain barrier and activated its receptor (ErbB4) in the brain. In adults, the mice receiving the highest dose exhibited lower locomotor activity and deficits in prepulse inhibition and tonedependent fear learning, although the hearing reduction of the eNRG1-treated mice may explain these behavioral deficits. Neonatal eNRG1 treatment also significantly potentiated MK-801-driven locomotor activity in an eNRG1 dose-dependent manner. In parallel eNRG1 treatment enhanced MK-801-driven c-Fos induction and decreased immunoreactivity for NMDA receptor subunits in adult brain. In contrast, mice that had been treated with the same molar dose of a full mature form of type 1 NRG1 as neonates did not exhibit hypersensitivity to MK-801. However, both animal models exhibited similar hypersensitivity to methamphetamine. Collectively, our findings suggest that aberrant peripheral NRG1 signals during neurodevelopment alter later behavioral traits and auditory functions in the NRG1 subtype-dependent manner.
Collapse
Affiliation(s)
| | | | | | | | | | | | - H Nawa
- Department of Molecular Neurobiology, Brain Research Institute, Niigata University, 1-757 Asahimachi-dori, Niigata 951-8585, Japan.
| |
Collapse
|
20
|
Schwarz E, Tost H, Meyer-Lindenberg A. Working memory genetics in schizophrenia and related disorders: An RDoC perspective. Am J Med Genet B Neuropsychiatr Genet 2016; 171B:121-31. [PMID: 26365198 DOI: 10.1002/ajmg.b.32353] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 07/08/2015] [Indexed: 12/29/2022]
Abstract
Improved classification of mental disorders through neurobiological measures will require a set of traits that map to transdiagnostic subgroups of patients and align with heritable, core psychopathological processes at the center of the disorders of interest. A promising candidate is working memory (WM) function, for which deficits have been reported across multiple diagnostic entities including schizophrenia, bipolar disorder, ADHD, autism, and major depressive disorder. Here we review genetic working memory associations and their brain functional correlates from the perspective of identifying patient subgroups across conventional diagnostic boundaries, explore the utility of multimodal investigations integrating functional information at the neural systems level and explore potential limitations as well as future directions for research.
Collapse
Affiliation(s)
- Emanuel Schwarz
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Heike Tost
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Andreas Meyer-Lindenberg
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| |
Collapse
|
21
|
Wang R, Wang Y, Hu R, Chen X, Song M, Wang X. Decreased plasma levels of neureglin-1 in drug naïve patients and chronic patients with schizophrenia. Neurosci Lett 2015; 606:220-4. [PMID: 26365407 DOI: 10.1016/j.neulet.2015.09.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2015] [Revised: 08/25/2015] [Accepted: 09/08/2015] [Indexed: 10/23/2022]
Abstract
Although the neuregulin-1 (NRG1) gene is one of the susceptibility genes for schizophrenia and various other psychiatric diseases, it remains unclear how individual psychiatric diseases affect the expression of the NRG1 protein in patients. A previous study reported a schizophrenia-linked decrease in serum NRG1 levels. The present study aimed to replicate this initial finding and to assess its disease specificity for schizophrenia. We collected plasma samples from drug-naïve patients with first-episode schizophrenia (n=80), patients with chronic schizophrenia (n=86), patients with bipolar I disorder (n=60), patients with bipolar II disorder (n=60) and patients with major depressive disorder (n=60), we measured the plasma levels of NRG1β1 and compared the levels with those of age- and sex-matched healthy volunteers (n=82). One-way ANOVA and post hoc analyses detected specific NRG1β1 decreases in the participants with first-episode and chronic schizophrenia but not in those with bipolar I disorder, bipolar II disorder or major depressive disorder. The mean plasma levels of NRG1β1 immunoreactivity were 4.27±0.71 ng/mL in the participants with first-episode schizophrenia, 4.08±0.64 ng/mL in the participants with chronic schizophrenia and 7.21±0.91 ng/mL in the healthy controls. Although we analyzed the pathological correlations of NRG1β1 immunoreactivity in terms of the clinical parameters of the sample, we observed only weak positive correlations with the age of the participants with chronic schizophrenia and the disease onset times of the participants with bipolar II disorder. We failed to identify correlations between other clinical parameters and plasma NRG1β1 immunoreactivity among all patient subjects. These findings suggest that NRG1 may serve as a relatively specific disease marker for schizophrenia. However, the pathological role of this decrease must be explored further.
Collapse
Affiliation(s)
- Ran Wang
- Department of Psychiatry, First Hospital of Hebei Medical University, 89 Donggang Lu, Shijiazhuang, Hebei 050031, China; Institute of Mental Health of Hebei Medical University, China
| | - Yumei Wang
- Department of Psychiatry, First Hospital of Hebei Medical University, 89 Donggang Lu, Shijiazhuang, Hebei 050031, China; Institute of Mental Health of Hebei Medical University, China
| | - Rui Hu
- Department of Psychiatry, First Hospital of Hebei Medical University, 89 Donggang Lu, Shijiazhuang, Hebei 050031, China; Institute of Mental Health of Hebei Medical University, China
| | - Xingshi Chen
- Shanghai Mental Health Center, Shanghai Jiaotong University School of Medicine, Shanghai 200030, China
| | - Mei Song
- Department of Psychiatry, First Hospital of Hebei Medical University, 89 Donggang Lu, Shijiazhuang, Hebei 050031, China; Institute of Mental Health of Hebei Medical University, China
| | - Xueyi Wang
- Department of Psychiatry, First Hospital of Hebei Medical University, 89 Donggang Lu, Shijiazhuang, Hebei 050031, China; Institute of Mental Health of Hebei Medical University, China.
| |
Collapse
|
22
|
Abstract
Patients with schizophrenia are at an increased risk for the development of depression. Overlap in the symptoms and genetic risk factors between the two disorders suggests a common etiological mechanism may underlie the presentation of comorbid depression in schizophrenia. Understanding these shared mechanisms will be important in informing the development of new treatments. Rodent models are powerful tools for understanding gene function as it relates to behavior. Examining rodent models relevant to both schizophrenia and depression reveals a number of common mechanisms. Current models which demonstrate endophenotypes of both schizophrenia and depression are reviewed here, including models of CUB and SUSHI multiple domains 1, PDZ and LIM domain 5, glutamate Delta 1 receptor, diabetic db/db mice, neuropeptide Y, disrupted in schizophrenia 1, and its interacting partners, reelin, maternal immune activation, and social isolation. Neurotransmission, brain connectivity, the immune system, the environment, and metabolism emerge as potential common mechanisms linking these models and potentially explaining comorbid depression in schizophrenia.
Collapse
Affiliation(s)
- James N Samsom
- Department of Molecular Neuroscience, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute , Toronto, ON , Canada ; Department of Pharmacology, Faculty of Medicine, University of Toronto , Toronto, ON , Canada
| | - Albert H C Wong
- Department of Molecular Neuroscience, Centre for Addiction and Mental Health, Campbell Family Mental Health Research Institute , Toronto, ON , Canada ; Department of Pharmacology, Faculty of Medicine, University of Toronto , Toronto, ON , Canada ; Department of Psychiatry, Faculty of Medicine, University of Toronto , Toronto, ON , Canada
| |
Collapse
|
23
|
Crabtree GW, Gogos JA. Synaptic plasticity, neural circuits, and the emerging role of altered short-term information processing in schizophrenia. Front Synaptic Neurosci 2014; 6:28. [PMID: 25505409 PMCID: PMC4243504 DOI: 10.3389/fnsyn.2014.00028] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2014] [Accepted: 10/22/2014] [Indexed: 01/01/2023] Open
Abstract
Synaptic plasticity alters the strength of information flow between presynaptic and postsynaptic neurons and thus modifies the likelihood that action potentials in a presynaptic neuron will lead to an action potential in a postsynaptic neuron. As such, synaptic plasticity and pathological changes in synaptic plasticity impact the synaptic computation which controls the information flow through the neural microcircuits responsible for the complex information processing necessary to drive adaptive behaviors. As current theories of neuropsychiatric disease suggest that distinct dysfunctions in neural circuit performance may critically underlie the unique symptoms of these diseases, pathological alterations in synaptic plasticity mechanisms may be fundamental to the disease process. Here we consider mechanisms of both short-term and long-term plasticity of synaptic transmission and their possible roles in information processing by neural microcircuits in both health and disease. As paradigms of neuropsychiatric diseases with strongly implicated risk genes, we discuss the findings in schizophrenia and autism and consider the alterations in synaptic plasticity and network function observed in both human studies and genetic mouse models of these diseases. Together these studies have begun to point toward a likely dominant role of short-term synaptic plasticity alterations in schizophrenia while dysfunction in autism spectrum disorders (ASDs) may be due to a combination of both short-term and long-term synaptic plasticity alterations.
Collapse
Affiliation(s)
- Gregg W. Crabtree
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia UniversityNew York, NY, USA
| | - Joseph A. Gogos
- Department of Physiology and Cellular Biophysics, College of Physicians and Surgeons, Columbia UniversityNew York, NY, USA
- Department of Neuroscience, College of Physicians and Surgeons, Columbia UniversityNew York, NY, USA
| |
Collapse
|
24
|
Gutiérrez-Fernández A, Palomino A, González-Pinto A, Ugarte A, Hernanz M, Mendíbil B, Etxebeste M, Pacheco L, Gónzalez-García G, Matute C. Novel association of Neuregulin 1 gene with bipolar disorder but not with schizophrenia. Schizophr Res 2014; 159:552-3. [PMID: 25244971 DOI: 10.1016/j.schres.2014.09.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 08/29/2014] [Accepted: 09/01/2014] [Indexed: 12/22/2022]
Affiliation(s)
- Arantza Gutiérrez-Fernández
- Neurotek UPV-EHU, Departamento de Neurociencias, CIBERNED and Achucarro Basque Center for Neuroscience, Parque Tecnológico de Bizkaia, E-48170 Zamudio, Vizcaya, Spain
| | - Aitor Palomino
- Neurotek UPV-EHU, Departamento de Neurociencias, CIBERNED and Achucarro Basque Center for Neuroscience, Parque Tecnológico de Bizkaia, E-48170 Zamudio, Vizcaya, Spain
| | - Ana González-Pinto
- Stanley Research Center, 03-RC-003, Vitoria, Spain; CIBERSAM, Vitoria, Spain
| | - Amaia Ugarte
- Stanley Research Center, 03-RC-003, Vitoria, Spain; CIBERSAM, Vitoria, Spain
| | - Margarita Hernanz
- Stanley Research Center, 03-RC-003, Vitoria, Spain; CIBERSAM, Vitoria, Spain
| | | | | | | | | | - Carlos Matute
- Neurotek UPV-EHU, Departamento de Neurociencias, CIBERNED and Achucarro Basque Center for Neuroscience, Parque Tecnológico de Bizkaia, E-48170 Zamudio, Vizcaya, Spain.
| |
Collapse
|
25
|
Abstract
Neuregulins (NRGs) comprise a large family of growth factors that stimulate ERBB receptor tyrosine kinases. NRGs and their receptors, ERBBs, have been identified as susceptibility genes for diseases such as schizophrenia (SZ) and bipolar disorder. Recent studies have revealed complex Nrg/Erbb signaling networks that regulate the assembly of neural circuitry, myelination, neurotransmission, and synaptic plasticity. Evidence indicates there is an optimal level of NRG/ERBB signaling in the brain and deviation from it impairs brain functions. NRGs/ERBBs and downstream signaling pathways may provide therapeutic targets for specific neuropsychiatric symptoms.
Collapse
Affiliation(s)
- Lin Mei
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Department of Neurology, Medical College of Georgia, Georgia Regents University, Augusta, GA 30912, USA; Charlie Norwood VA Medical Center, Augusta, GA 30904, USA.
| | - Klaus-Armin Nave
- Department of Neurogenetics, Max Planck Institute of Experimental Medicine, 37075 Goettingen, Germany.
| |
Collapse
|
26
|
Paterson C, Wang Y, Kleinman JE, Law AJ. Effects of schizophrenia risk variation in the NRG1 gene on NRG1-IV splicing during fetal and early postnatal human neocortical development. Am J Psychiatry 2014; 171:979-89. [PMID: 24935406 PMCID: PMC4330971 DOI: 10.1176/appi.ajp.2014.13111518] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
OBJECTIVE Neuregulin 1 (NRG1) is a multifunctional neurotrophin that mediates neurodevelopment and schizophrenia risk. The NRG1 gene undergoes extensive alternative splicing, and association of brain NRG1 type IV isoform expression with the schizophrenia-risk polymorphism rs6994992 is a potential mechanism of risk. Novel splice variants of NRG1-IV (NRG1-IVNV), with predicted unique signaling capabilities, have been cloned in fetal brain tissue. The authors investigated the temporal dynamics of transcription of NRG1-IVNV, compared with the major NRG1 isoforms, across human prenatal and postnatal prefrontal cortical development, and they examined the association of rs6994992 with NRG1-IVNV expression. METHOD NRG1 type I-IV and NRG1-IVNV isoforms were evaluated with quantitative real-time polymerase chain reaction in human postmortem prefrontal cortex tissue samples at 14 to 39 weeks gestation and postnatal ages 0-83 years. The association of rs6994992 genotype with NRG1-IVNV expression and the subcellular distribution and proteolytic processing of NRG1-IVNV isoforms were also determined. RESULTS Expression of NRG1 types I, II, and III was temporally regulated during prenatal and postnatal neocortical development. NRG1-IVNV was expressed from 16 weeks gestation until age 3. Homozygosity for the schizophrenia risk allele (T) of rs6994992 conferred lower cortical NRG1-IVNV levels. Assays showed that NRG1-IVNV is a novel nuclear-enriched, truncated NRG1 protein resistant to proteolytic processing. CONCLUSIONS To the authors' knowledge, this study provides the first quantitative map of NRG1 isoform expression during human neocortical development and aging. It identifies a potential mechanism of early developmental risk for schizophrenia at the NRG1 locus, involving a novel class of NRG1 proteins.
Collapse
Affiliation(s)
- Clare Paterson
- Department of Psychiatry, University of Colorado, School of Medicine, Aurora, CO 80045, USA,Clinical Brain Disorders Branch, Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892-1385, USA
| | - Yanhong Wang
- Clinical Brain Disorders Branch, Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892-1385, USA,Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, 855 N Wolfe Street, Baltimore, Maryland 21205
| | - Joel E. Kleinman
- Clinical Brain Disorders Branch, Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892-1385, USA,Lieber Institute for Brain Development, Johns Hopkins University Medical Campus, 855 N Wolfe Street, Baltimore, Maryland 21205
| | - Amanda J. Law
- Department of Psychiatry, University of Colorado, School of Medicine, Aurora, CO 80045, USA,Clinical Brain Disorders Branch, Genes, Cognition and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892-1385, USA,Corresponding author:
| |
Collapse
|
27
|
Cao L, Deng W, Guan L, Yang Z, Lin Y, Ma X, Li X, Liu Y, Ye B, Lao G, Chen Y, Liang H, Wu Y, Ou Y, Huang W, Liu W, Wang Q, Wang Y, Zhao L, Li T, Hu X. Association of the 3' region of the neuregulin 1 gene with bipolar I disorder in the Chinese Han population. J Affect Disord 2014; 162:81-8. [PMID: 24767010 DOI: 10.1016/j.jad.2014.03.037] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Revised: 03/17/2014] [Accepted: 03/18/2014] [Indexed: 11/26/2022]
Abstract
BACKGROUND Based on the function of neuregulin 1 (NRG1) in neurodevelopment, susceptibility to bipolar disorder presumably involves this gene. The 3' region of NRG1 contains the majority of the coding exons, and transcripts from this region encode 8 of the 9 known NRG1 isoforms; therefore, this region is likely to be predominant versus the 5' region in terms of their relative contributions to NRG1 function. We investigated the association between the 3' region of the NRG1 gene and bipolar I disorder (BPI) in the Chinese Han population and performed further analyses depending on the presence or absence of psychotic features. METHODS A total of 385 BPI patients and 475 healthy controls were recruited for this study. Thirty tag single nucleotide polymorphisms (SNPs) across the 3' region of the NRG1 gene were genotyped for allelic and haplotypic associations with BPI and subgroups with psychotic features (BPI-P) or without psychotic features (BPI-NP). RESULTS Individual marker analysis showed that 2 SNPs (rs12547858 and rs6468121) in this region were significantly associated with BPI. Moreover, subgroup analyses showed significant but marginal associations of rs6468121 with BPI-P and rs3757933 with BPI-NP. Haplotype analyses showed that 6 haplotypes were associated with BPI only. LIMITATIONS The sample size was relatively small. The investigated tag SNPs only represented 83% of the information on the targeted region. There might be a retrospective bias in the subgroup analyses. CONCLUSION The results suggest that the 3' region of the NRG1 gene plays a role in BPI susceptibility in the Chinese Han population. In addition, the preliminary results show that BPI with psychotic features and BPI without psychotic features may constitute different sub-phenotypes; however, this finding should be confirmed in a larger population sample.
Collapse
Affiliation(s)
- Liping Cao
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China.
| | - Wenhao Deng
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Lijie Guan
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Zhenxing Yang
- Psychiatric Laboratory and Mental Health Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Yin Lin
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China; Psychiatric Laboratory and Mental Health Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Xiaohong Ma
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China; Psychiatric Laboratory and Mental Health Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Xuan Li
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Yuping Liu
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Biyu Ye
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Guohui Lao
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Yuwei Chen
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Huiwei Liang
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Yuanfei Wu
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Yufen Ou
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Weijie Huang
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Wentao Liu
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China
| | - Qiang Wang
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China; Psychiatric Laboratory and Mental Health Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Yingcheng Wang
- Affiliated Brain Hospital of Guangzhou Medical University, Guangzhou Brain Hospital, Guangzhou, Guangdong, PR China; Psychiatric Laboratory and Mental Health Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Liansheng Zhao
- Psychiatric Laboratory and Mental Health Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Tao Li
- Psychiatric Laboratory and Mental Health Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China
| | - Xun Hu
- Psychiatric Laboratory and Mental Health Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, PR China.
| |
Collapse
|
28
|
Marlinge E, Bellivier F, Houenou J. White matter alterations in bipolar disorder: potential for drug discovery and development. Bipolar Disord 2014; 16:97-112. [PMID: 24571279 DOI: 10.1111/bdi.12135] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2012] [Accepted: 05/24/2013] [Indexed: 12/15/2022]
Abstract
OBJECTIVES Brain white matter (WM) alterations have recently emerged as potentially relevant in bipolar disorder. New techniques such as diffusion tensor imaging allow precise exploration of these WM microstructural alterations in bipolar disorder. Our objective was to critically review WM alterations in bipolar disorder, using neuroimaging and neuropathological studies, in the context of neural models and the potential for drug discovery and development. METHODS We conducted a systematic PubMed and Google Scholar search of the WM and bipolar disorder literature up to and including January 2013. RESULTS Findings relating to WM alterations are consistent in neuroimaging and neuropathology studies of bipolar disorder, especially in regions involved in emotional processing such as the anterior frontal lobe, corpus callosum, cingulate cortex, and in fronto-limbic connections. Some of the structural alterations are related to genetic risk factors for bipolar disorder and may underlie the dysfunctional emotional processing described in recent neurobiological models of bipolar disorder. Medication effects in bipolar disorder, from lithium and other mood stabilizers, might impact myelinating processes, particularly by inhibition of glycogen synthase kinase-3 beta. CONCLUSIONS Pathways leading to WM alterations in bipolar disorder represent potential targets for the development and discovery of new drugs. Myelin damage in bipolar disorder suggests that the effects of existing pro-myelinating drugs should also be evaluated to improve our understanding and treatment of this disease.
Collapse
Affiliation(s)
- Emeline Marlinge
- AP-HP, Groupe Henri Mondor-Albert Chenevier, Pôle de Psychiatrie, Paris, France; Inserm, U955, Equipe 15 (Psychiatrie Génétique), Paris, France; Fondation Fondamental, Créteil, France; Neurospin, I2BM, CEA, Gif-Sur-Yvette, France
| | | | | |
Collapse
|
29
|
Bousman CA, Potiriadis M, Everall IP, Gunn JM. Effects of neuregulin-1 genetic variation and depression symptom severity on longitudinal patterns of psychotic symptoms in primary care attendees. Am J Med Genet B Neuropsychiatr Genet 2014; 165B:62-7. [PMID: 24123921 DOI: 10.1002/ajmg.b.32206] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2013] [Accepted: 09/12/2013] [Indexed: 02/05/2023]
Abstract
A better understanding of the factors associated with psychotic symptoms could aid early identification and treatment of psychotic disorders. Previous studies have typically utilized cross-sectional study designs and have focused on individuals with psychotic disorders. Thus, examination of promising correlates of psychotic symptoms using longitudinal designs among more broadly defined populations is warranted. Two such correlates are neuregulin-1 (NRG1) genotypic variation and depression symptom severity. Both NRG1 and depression symptom severity have cross-sectional evidence for an association with psychosis but their affect on longitudinal patterns of psychotic symptoms and their potential interaction effects are less clear. Using repeated measures analysis of variance and covariance we modeled the main and interaction effects of NRG1 genotypic variation and depressive symptom severity on longitudinal psychotic symptom patterns in 301 primary care attendees assessed annually over 4 years. One-fifth (19.9%) of the participants reported one or more psychotic symptoms over the 4-year assessment period. We observed a curvilinear (i.e., cubic) association between depression symptom severity at baseline and longitudinal patterns of psychotic symptoms but did not observe a main effect for NRG1 genotypic variation on psychotic symptom patterns. However, NRG1 rs6994992 genotype moderated the curvilinear association between depression symptom severity and psychotic symptom patterns. Specifically, depression symptom severity had less of an effect on longitudinal psychotic symptoms among carriers of the rs6994992 TT genotype compared to CC and CT carriers. Our findings suggest a curvilinear association between depression symptom severity and longitudinal patterns of psychotic symptoms that is moderated by NRG1 genotype.
Collapse
Affiliation(s)
- C A Bousman
- Department of Psychiatry, The University of Melbourne, Parkville, VIC, Australia; Department of General Practice, The University of Melbourne, Parkville, VIC, Australia; Centre for Human Psychopharmacology, Swinburne University of Technology, Hawthorne, VIC, Australia; Florey Institute for Neuroscience and Mental Health, Parkville, VIC, Australia
| | | | | | | |
Collapse
|
30
|
Crisafulli C, Chiesa A, Han C, Lee SJ, Balzarro B, Andrisano C, Sidoti A, Patkar AA, Pae CU, Serretti A. Case-control association study of 36 single-nucleotide polymorphisms within 10 candidate genes for major depression and bipolar disorder. Psychiatry Res 2013; 209:121-3. [PMID: 23273899 DOI: 10.1016/j.psychres.2012.11.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2012] [Revised: 11/02/2012] [Accepted: 11/09/2012] [Indexed: 01/29/2023]
Abstract
In this study we investigated 36 single nucleotide polymorphisms within 10 genes previously associated with major depression and bipolar disorder, as well as with the response to their treatment (ABCB1, ABCB4, TAP2, CLOCK, CPLX1, CPLX2, SYN2, NRG1, 5HTR1A and GPRIN2). No association with mood disorders and clinical outcomes was observed.
Collapse
Affiliation(s)
- Concetta Crisafulli
- Department of Biomorphology and Biotechnologies, Division of Biology and Genetics, University of Messina, Messina, Italy
| | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
Sprooten E, Fleming KM, Thomson PA, Bastin ME, Whalley HC, Hall J, Sussmann JE, McKirdy J, Blackwood D, Lawrie SM, McIntosh AM. White matter integrity as an intermediate phenotype: exploratory genome-wide association analysis in individuals at high risk of bipolar disorder. Psychiatry Res 2013; 206:223-31. [PMID: 23218918 DOI: 10.1016/j.psychres.2012.11.002] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2012] [Revised: 08/14/2012] [Accepted: 11/01/2012] [Indexed: 12/13/2022]
Abstract
White matter integrity, as measured using diffusion tensor imaging (DTI), is reduced in individuals with bipolar disorder (BD), their unaffected relatives and carriers of specific risk-alleles. Fractional anisotropy (FA), an index of white matter integrity, is highly heritable but the genetic architecture of this trait has received little investigation. In this study we performed a genome-wide association study with FA as quantitative phenotype, in unaffected relatives of patients with BD (N=70) and a matched control group (N=80). Amongst our top results were SNPs located in genes involved in cell adhesion, white matter development and neuronal plasticity. Pathway analysis of the top associated polymorphisms and genes confirmed the enrichment of processes relevant to BD and white matter development, including axon guidance, ErbB-signalling neurotrophin signalling, phosphatidylinositol signalling, and cell adhesion. The majority of genes implicated in these pathways were differentially associated with FA in individuals at high familial risk, suggesting interactions with genetic background or environmental factors secondary to familial risk for BD. Although the present findings require independent replication, the results encourage the use of global FA as a quantitative phenotype in future large-scale studies which may help to identify the biological processes underlying reduced FA in BD and other psychiatric disorders.
Collapse
Affiliation(s)
- Emma Sprooten
- Division of Psychiatry, University of Edinburgh, Kennedy Tower, Royal Edinburgh Hospital, Morningside Park, Edinburgh EH10 5HF, UK.
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
32
|
Gow M, Mirembe D, Longwe Z, Pickard BS. A gene trap mutagenesis screen for genes underlying cellular response to the mood stabilizer lithium. J Cell Mol Med 2013; 17:657-63. [PMID: 23577691 PMCID: PMC3822818 DOI: 10.1111/jcmm.12048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2012] [Accepted: 01/31/2013] [Indexed: 01/16/2023] Open
Abstract
Identifying the biological pathways mediating the action of a therapeutic compound may help the development of more specific treatments while also increasing our understanding of the underlying disease pathology. Salts of the metal lithium are commonly used as a front-line mood stabilizing treatment for bipolar disorder. Lithium's action has been variously linked to inositol phosphate metabolism and the WNT/Glycogen Synthase Kinase 3β (GSK3β)/β-Catenin signalling cascade, but, to date, little is known about which of these provides the principal therapeutic benefit for patients and, more specifically, which constituent genes, through presumed sequence variation, determine differences in patient response to treatment. Here, we describe a functional screen in which SH-SY5Y neuroblastoma cells were randomly mutated through genomic integration of the pMS1 poly A ‘gene trap’ plasmid vector. Lithium normally induces differentiation of neuroblastoma cells, but a small proportion of mutated cells continued to proliferate and formed colonies. Rapid amplification of cDNA ends (RACE)-PCR was used to identify the ‘trapped’ gene in each of these lithium-resistant colonies. Heterozygous, gene trap integrations were identified within ten genes, eight of which are likely to produce loss-of-function mutations including MED10, MSI2 and three long intergenic non-coding (LINC) RNAs. Both MED10 and MSI2 have been previously linked with WNT/GSK3β/β-Catenin pathway function suggesting that this is an important mediator of lithium action in this screen. The methodology applied here provides a rapid, objective and economic approach to define the genetic contribution to drug action, but could also be readily adapted to any desired in vitro functional selection/screening paradigm.
Collapse
Affiliation(s)
- Matthew Gow
- Undergraduate Biomedical Sciences Honours Degree Programmes, University of Strathclyde, Glasgow, UK
| | | | | | | |
Collapse
|
33
|
Kukshal P, Bhatia T, Bhagwat AM, Gur RE, Gur RC, Deshpande SN, Nimgaonkar VL, Thelma BK. Association study of neuregulin-1 gene polymorphisms in a North Indian schizophrenia sample. Schizophr Res 2013; 144:24-30. [PMID: 23360725 PMCID: PMC4040109 DOI: 10.1016/j.schres.2012.12.017] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 11/20/2012] [Accepted: 12/17/2012] [Indexed: 02/07/2023]
Abstract
BACKGROUND Neuregulin-1 (NRG1) gene polymorphisms have been proposed as risk factors for several common disorders. Associations with cognitive variation have also been tested. With regard to schizophrenia (SZ) risk, studies of Caucasian ancestry samples indicate associations more consistently than East Asian samples, suggesting heterogeneity. To exploit the differences in linkage disequilibrium (LD) structure across ethnic groups, we conducted a SZ case-control study (that included cognitive evaluations) in a sample from the north Indian population. METHODS NRG1 variants (n=35 SNPs, three microsatellite markers) were initially analyzed among cases (DSM IV criteria, n=1007) and controls (n=1019, drawn from two groups) who were drawn from the same geographical region in North India. Nominally significant associations with SZ were next analyzed in relation to neurocognitive measures estimated with a computerized neurocognitive battery in a subset of the sample (n=116 cases, n=170 controls). RESULTS Three variants and one microsatellite showed allelic association with SZ (rs35753505, rs4733263, rs6994992, and microsatellite 420M9-1395, p≤0.05 uncorrected for multiple comparisons). A six marker haplotype 221121 (rs35753505-rs6994992-rs1354336-rs10093107-rs3924999-rs11780123) showed (p=0.0004) association after Bonferroni corrections. Regression analyses with the neurocognitive measures showed nominal (uncorrected) associations with emotion processing and attention at rs35753505 and rs6994992, respectively. CONCLUSIONS Suggestive associations with SZ and SZ-related neurocognitive measures were detected with two SNPs from the NRG1 promoter region in a north Indian cohort. The functional role of the alleles merits further investigation.
Collapse
Affiliation(s)
- Prachi Kukshal
- Department of Genetics, University of Delhi South campus, Benito
Juarez Road, New Delhi – 110 021, India
- C.B. Patel Research Centre, Vile Parle (West), Mumbai, India
| | - Triptish Bhatia
- Department of Psychiatry, Dr. RML Hospital, New Delhi – 110
001, India
| | - A. M. Bhagwat
- C.B. Patel Research Centre, Vile Parle (West), Mumbai, India
| | - Raquel E. Gur
- Department of Psychiatry, Neuropsychiatry Section, University of
Pennsylvania, Philadelphia, PA, USA
| | - Ruben C. Gur
- Department of Psychiatry, Neuropsychiatry Section, University of
Pennsylvania, Philadelphia, PA, USA
| | | | - Vishwajit L. Nimgaonkar
- Department of Psychiatry and Human Genetics, Western Psychiatric
Institute and Clinic, University of Pittsburgh School of Medicine and Graduate
School of Public Health, 3811 O’Hara Street, Pittsburgh, PA 15213, USA
| | - B. K. Thelma
- Department of Genetics, University of Delhi South campus, Benito
Juarez Road, New Delhi – 110 021, India
| |
Collapse
|
34
|
Agim ZS, Esendal M, Briollais L, Uyan O, Meschian M, Martinez LAM, Ding Y, Basak AN, Ozcelik H. Discovery, validation and characterization of Erbb4 and Nrg1 haplotypes using data from three genome-wide association studies of schizophrenia. PLoS One 2013; 8:e53042. [PMID: 23301017 PMCID: PMC3536812 DOI: 10.1371/journal.pone.0053042] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 11/23/2012] [Indexed: 12/11/2022] Open
Abstract
Schizophrenia is one of the most common and complex neuropsychiatric disorders, which is contributed both by genetic and environmental exposures. Recently, it is shown that NRG1-mediated ErbB4 signalling regulates many important cellular and molecular processes such as cellular growth, differentiation and death, particularly in myelin-producing cells, glia and neurons. Recent association studies have revealed genomic regions of NRG1 and ERBB4, which are significantly associated with risk of developing schizophrenia; however, inconsistencies exist in terms of validation of findings between distinct populations. In this study, we aim to validate the previously identified regions and to discover novel haplotypes of NRG1 and ERBB4 using logistic regression models and Haploview analyses in three independent datasets from GWAS conducted on European subjects, namely, CATIE, GAIN and nonGAIN. We identified a significant 6-kb block in ERBB4 between chromosome locations 212,156,823 and 212,162,848 in CATIE and GAIN datasets (p = 0.0206 and 0.0095, respectively). In NRG1, a significant 25-kb block, between 32,291,552 and 32,317,192, was associated with risk of schizophrenia in all CATIE, GAIN, and nonGAIN datasets (p = 0.0005, 0.0589, and 0.0143, respectively). Fine mapping and FastSNP analysis of genetic variation located within significantly associated regions proved the presence of binding sites for several transcription factors such as SRY, SOX5, CEPB, and ETS1. In this study, we have discovered and validated haplotypes of ERBB4 and NRG1 in three independent European populations. These findings suggest that these haplotypes play an important role in the development of schizophrenia by affecting transcription factor binding affinity.
Collapse
Affiliation(s)
- Zeynep Sena Agim
- Neurodegeneration Research Laboratory, Molecular Biology and Genetics Department, Bogazici University, Istanbul, Turkey
| | - Melda Esendal
- Fred A. Litwin Centre for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Laurent Briollais
- Prosserman Centre for Health Research, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Ozgun Uyan
- Neurodegeneration Research Laboratory, Molecular Biology and Genetics Department, Bogazici University, Istanbul, Turkey
| | - Mehran Meschian
- Fred A. Litwin Centre for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Luis Antonio Mendoza Martinez
- Fred A. Litwin Centre for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - Yongmei Ding
- Fred A. Litwin Centre for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
| | - A. Nazli Basak
- Neurodegeneration Research Laboratory, Molecular Biology and Genetics Department, Bogazici University, Istanbul, Turkey
| | - Hilmi Ozcelik
- Fred A. Litwin Centre for Cancer Genetics, Samuel Lunenfeld Research Institute, Mount Sinai Hospital, Toronto, Ontario, Canada
- * E-mail:
| |
Collapse
|
35
|
Abstract
Bipolar disorder (BD) is a complex disorder with a number of susceptibility genes and environmental risk factors involved in its pathogenesis. In recent years, huge progress has been made in molecular techniques for genetic studies, which have enabled identification of numerous genomic regions and genetic variants implicated in BD across populations. Despite the abundance of genetic findings, the results have often been inconsistent and not replicated for many candidate genes/single nucleotide polymorphisms (SNPs). Therefore, the aim of the review presented here is to summarize the most important data reported so far in candidate gene and genome-wide association studies. Taking into account the abundance of association data, this review focuses on the most extensively studied genes and polymorphisms reported so far for BD to present the most promising genomic regions/SNPs involved in BD. The review of association data reveals evidence for several genes (SLC6A4/5-HTT [serotonin transporter gene], BDNF [brain-derived neurotrophic factor], DAOA [D-amino acid oxidase activator], DTNBP1 [dysbindin], NRG1 [neuregulin 1], DISC1 [disrupted in schizophrenia 1]) to be crucial candidates in BD, whereas numerous genome-wide association studies conducted in BD indicate polymorphisms in two genes (CACNA1C [calcium channel, voltage-dependent, L type, alpha 1C subunit], ANK3 [ankyrin 3]) replicated for association with BD in most of these studies. Nevertheless, further studies focusing on interactions between multiple candidate genes/SNPs, as well as systems biology and pathway analyses are necessary to integrate and improve the way we analyze the currently available association data.
Collapse
Affiliation(s)
- Aleksandra Szczepankiewicz
- Laboratory of Molecular and Cell Biology, Poznan University of Medical Sciences, Poznan, Poland ; Department of Psychiatric Genetics, Poznan University of Medical Sciences, Poznan, Poland
| |
Collapse
|
36
|
Abstract
The early growth response gene 2 (EGR2) is located at chromosome 10q21, one of the susceptibility loci in bipolar disorder (BD). EGR2 is involved in cognitive function, myelination, and signal transduction related to neuregulin-ErbB receptor, Bcl-2 family proteins, and brain-derived neurotrophic factor. This study investigated the genetic association of the EGR2 gene with BD and schizophrenia (SPR) in Korea. In 946 subjects (350 healthy controls, 352 patients with BD, and 244 with SPR), nine single nucleotide polymorphisms (SNPs) in the EGR2 gene region were genotyped. Five SNPs showed nominally significant allelic associations with BD (rs2295814, rs61865882, rs10995315, rs2297488, and rs2297489), and the positive associations of all except rs2297488 remained significant after multiple testing correction. Linkage disequilibrium structure analysis revealed two haplotype blocks. Among the common identified haplotypes (frequency > 5%), 'T-G-A-C-T (block 1)' and 'A-A-G-C (block 2)' haplotypes were over-represented, while 'C-G-G-T-T (block 1)' haplotype was under-represented in BD. In contrast, no significant associations were found with SPR. Although an extended analysis with a larger sample size or independent replication is required, these findings suggest a genetic association of EGR2 with BD. Combined with a plausible biological function of EGR2, the EGR2 gene is a possible susceptibility gene in BD.
Collapse
Affiliation(s)
- Se Hyun Kim
- Department of Neuropsychiatry, Seoul National University Hospital, Korea
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Schevzov G, Curthoys NM, Gunning PW, Fath T. Functional diversity of actin cytoskeleton in neurons and its regulation by tropomyosin. Int Rev Cell Mol Biol 2012; 298:33-94. [PMID: 22878104 DOI: 10.1016/b978-0-12-394309-5.00002-x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Neurons comprise functionally, molecularly, and spatially distinct subcellular compartments which include the soma, dendrites, axon, branches, dendritic spines, and growth cones. In this chapter, we detail the remarkable ability of the neuronal cytoskeleton to exquisitely regulate all these cytoplasmic distinct partitions, with particular emphasis on the microfilament system and its plethora of associated proteins. Importance will be given to the family of actin-associated proteins, tropomyosin, in defining distinct actin filament populations. The ability of tropomyosin isoforms to regulate the access of actin-binding proteins to the filaments is believed to define the structural diversity and dynamics of actin filaments and ultimately be responsible for the functional outcome of these filaments.
Collapse
Affiliation(s)
- Galina Schevzov
- Oncology Research Unit, Department of Pharmacology, School of Medical Sciences, University of New South Wales, Kensington, Australia
| | | | | | | |
Collapse
|
38
|
Liu X, Bates R, Yin DM, Shen C, Wang F, Su N, Kirov SA, Luo Y, Wang JZ, Xiong WC, Mei L. Specific regulation of NRG1 isoform expression by neuronal activity. J Neurosci 2011; 31:8491-501. [PMID: 21653853 DOI: 10.1523/JNEUROSCI.5317-10.2011] [Citation(s) in RCA: 126] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Neuregulin 1 (NRG1) is a trophic factor that has been implicated in neural development, neurotransmission, and synaptic plasticity. NRG1 has multiple isoforms that are generated by usage of different promoters and alternative splicing of a single gene. However, little is known about NRG1 isoform composition profile, whether it changes during development, or the underlying mechanisms. We found that each of the six types of NRG1 has a distinct expression pattern in the brain at different ages, resulting in a change in NRG1 isoform composition. In both human and rat, the most dominant are types III and II, followed by either type I or type V, while types IV and VI are the least abundant. The expression of NRG1 isoforms is higher in rat brains at ages of E13 and P5 (in particular type V), suggesting roles in early neural development and in the neonatal critical period. At the cellular level, the majority of NRG1 isoforms (types I, II, and III) are expressed in excitatory neurons, although they are also present in GABAergic neurons and astrocytes. Finally, the expression of each NRG1 isoform is distinctly regulated by neuronal activity, which causes significant increase in type I and IV NRG1 levels. Neuronal activity regulation of type IV expression requires a CRE cis-element in the 5' untranslated region (UTR) that binds to CREB. These results indicate that expression of NRG1 isoforms is regulated by distinct mechanisms, which may contribute to versatile functions of NRG1 and pathologic mechanisms of brain disorders such as schizophrenia.
Collapse
|
39
|
Moon E, Rollins B, Mesén A, Sequeira A, Myers RM, Akil H, Watson SJ, Barchas J, Jones EG, Schatzberg A, Bunney WE, DeLisi LE, Byerley W, Vawter MP. Lack of association to a NRG1 missense polymorphism in schizophrenia or bipolar disorder in a Costa Rican population. Schizophr Res 2011; 131:52-7. [PMID: 21745728 PMCID: PMC3159824 DOI: 10.1016/j.schres.2011.06.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 06/15/2011] [Accepted: 06/20/2011] [Indexed: 12/30/2022]
Abstract
A missense polymorphism in the NRG1 gene, Val>Leu in exon 11, was reported to increase the risk of schizophrenia in selected families from the Central Valley region of Costa Rica (CVCR). The present study investigated the relationship between three NRG1 genetic variants, rs6994992, rs3924999, and Val>Leu missense polymorphism in exon 11, in cases and selected controls from an isolated population from the CVCR. Isolated populations can have less genetic heterogeneity and increase power to detect risk variants in candidate genes. Subjects with bipolar disorder (BD, n=358), schizophrenia (SZ, n=273), or unrelated controls (CO, n=479) were genotyped for three NRG1 variants. The NRG1 promoter polymorphism (rs6994992) was related to altered expression of NRG1 Type IV in other studies. The expression of NRG1 type IV in the dorsolateral prefrontal cortex (DLPFC) and the effect of the rs6994992 genotype on expression were explored in a postmortem cohort of BD, SZ, major depressive disorder (MDD) cases, and controls. The missense polymorphism Val>Leu in exon 11 was not significantly associated with schizophrenia as previously reported in a family sample from this population, the minor allele frequency is 4%, thus our sample size is not large enough to detect an association. We observed however an association of rs6994992 with NRG1 type IV expression in DLPFC and a significantly decreased expression in MDD compared to controls. The present results while negative do not rule out a genetic association of these SNPs with BD and SZ in CVCR, perhaps due to small risk effects that we were unable to detect and potential intergenic epistasis. The previous genetic relationship between expression of a putative brain-specific isoform of NRG1 type IV and SNP variation was replicated in postmortem samples in our preliminary study.
Collapse
Affiliation(s)
- Emily Moon
- Department of Psychiatry and Human Behavior, School of Medicine, University of California, Irvine, CA, USA
| | - Brandi Rollins
- Department of Psychiatry and Human Behavior, School of Medicine, University of California, Irvine, CA, USA
| | - Andrea Mesén
- ACENP of Costa Rica, Center of Neuropsychiatric Studies of Costa Rica, San José, Costa Rica
| | - Adolfo Sequeira
- Department of Psychiatry and Human Behavior, School of Medicine, University of California, Irvine, CA, USA
| | - Richard M. Myers
- HudsonAlpha Institute for Biotechnology, Huntsville, Alabama, USA
| | - Huda Akil
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, USA
| | - Stanley J. Watson
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, USA
| | - Jack Barchas
- Department of Psychiatry, Cornell University, New York, NY, USA
| | - Edward G. Jones
- Neuroscience Center, University of California, Davis, CA, USA
| | - Alan Schatzberg
- Department of Psychiatry, Stanford University, Palo Alto, CA, USA
| | - William E. Bunney
- Department of Psychiatry and Human Behavior, School of Medicine, University of California, Irvine, CA, USA
| | | | - William Byerley
- Department of Psychiatry, University of California, San Francisco, CA, USA
| | - Marquis P. Vawter
- Department of Psychiatry and Human Behavior, School of Medicine, University of California, Irvine, CA, USA,Corresponding author: , (949) 824-9014
| |
Collapse
|
40
|
Smyrnis N, Kattoulas E, Stefanis NC, Avramopoulos D, Stefanis CN, Evdokimidis I. Schizophrenia-related neuregulin-1 single-nucleotide polymorphisms lead to deficient smooth eye pursuit in a large sample of young men. Schizophr Bull 2011; 37:822-31. [PMID: 19965935 PMCID: PMC3122292 DOI: 10.1093/schbul/sbp150] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Neuregulin-1 (NRG1) variations have been shown to modulate schizophrenia candidate endophenotypes related to brain structure and function. The aim of this study was to determine the effect of NRG1 on several oculomotor schizophrenia endophenotypes. The effects of 5 core single-nucleotide polymorphisms (SNPs) within the NRG1 gene to oculomotor parameters in a battery of oculomotor tasks (saccade, antisaccade, smooth eye pursuit, fixation) were investigated in a sample of 2243 young male military conscripts. Additive regression models, bootstrap and permutation techniques, were used as well as structural equation modeling and haplotype analysis. A deficit in global smooth eye pursuit performance measured using the root-mean-square error (RMSE) was related to the risk allele of SNP8NRG243177, and a deficit in global smooth eye pursuit performance measured using the saccade frequency was related with the risk allele of SNP8NRG433E1006. Structural equation modeling confirmed a global effect of NRG1 genotype on smooth eye pursuit performance using the RMSE, while the effect on saccade frequency was not confirmed. Haplotype analysis further confirmed the prediction from the structural equation modeling that a combination of alleles corresponding to the Icelandic high-risk haplotype was related to a deficit in global pursuit performance. NRG1 genotype variations were related to smooth eye pursuit variations both at the SNP level and at the haplotype level adding to the validation of this gene as a candidate gene for the disorder.
Collapse
Affiliation(s)
- Nikolaos Smyrnis
- Psychiatry Department, National and Kapodistrian University of Athens Medical School, Eginition Hospital, 72 Vas. Sofias Avenue, Athens, Greece.
| | | | - Nicholas C. Stefanis
- University Mental Health Research Institute, Athens, Greece,Psychiatry Department
| | - Dimitrios Avramopoulos
- McKusick-Nathans Institute of Genetic Medicine, The Johns Hopkins University, Baltimore, MD
| | | | - Ioannis Evdokimidis
- Neurology Department, National and Kapodistrian University of Athens Medical School, Athens, Greece
| |
Collapse
|
41
|
Zuliani R, Moorhead TWJ, Bastin ME, Johnstone EC, Lawrie SM, Brambilla P, C.O'Donovan M, Owen MJ, Hall J, McIntosh AM. Genetic variants in the ErbB4 gene are associated with white matter integrity. Psychiatry Res 2011; 191:133-7. [PMID: 21232925 PMCID: PMC5372351 DOI: 10.1016/j.pscychresns.2010.11.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2010] [Revised: 09/29/2010] [Accepted: 11/01/2010] [Indexed: 12/15/2022]
Abstract
Variations in the signalling NRG1-ErbB4 pathway have been associated with genetic susceptibility for both bipolar disorder and schizophrenia, although the underlying neural mechanisms are still uncertain. Reduced integrity of the anterior limb of the internal capsule (ALIC) has been found in association with risk-associated genetic variation in the 5' region of the NRG1 gene. We hypothesised that variation in the gene encoding the NRG1 receptor, ErbB4, would also be associated with reduced ALIC integrity and with cognitive impairments characteristic of individuals with bipolar disorder and schizophrenia. Using diffusion tensor imaging (DTI), we examined the white matter integrity associations of the ErbB4 polymorphism rs4673628, which resides within intron 12 of the gene encoding ErbB4, in 36 healthy individuals. We also sought to clarify the cognitive effects of any findings. We found that genetic variation at the rs4673628 locus in the ErbB4 gene was significantly associated with ALIC white matter integrity which was also significantly and positively associated with mnemonic function. These findings provide further evidence to support a key role of NRG1-ErbB4 signalling in the pathophysiology of major mental disorders.
Collapse
Affiliation(s)
- Riccardo Zuliani
- Inter-University Centre for Behavioural Neurosciences, University of Udine, Udine, Italy.
| | - T. William J. Moorhead
- Division of Psychiatry, University of Edinburgh, Kennedy Tower, Royal Edinburgh Hospital, Edinburgh, UK
| | - Mark E. Bastin
- Medical and Radiological Sciences (Medical Physics), University of Edinburgh, Edinburgh, UK,SINAPSE Collaboration, SFC Brain Imaging Research Centre, University of Edinburgh, Edinburgh, UK
| | - Eve C. Johnstone
- Division of Psychiatry, University of Edinburgh, Kennedy Tower, Royal Edinburgh Hospital, Edinburgh, UK
| | - Stephen M. Lawrie
- Division of Psychiatry, University of Edinburgh, Kennedy Tower, Royal Edinburgh Hospital, Edinburgh, UK
| | - Paolo Brambilla
- Inter-University Centre for Behavioural Neurosciences, DPMSC, Section of Psychiatry, University of Udine, Udine, Italy,Scientific Institute IRCCS ‘E.Medea’, Udine, Italy
| | - Michael C.O'Donovan
- MRC Centre for Neuropsychiatric Genetics and Genomics, Department of Psychological Medicine and Neurology, School of Medicine, Cardiff University, Cardiff, UK
| | - Michael J. Owen
- MRC Centre for Neuropsychiatric Genetics and Genomics, Department of Psychological Medicine and Neurology, School of Medicine, Cardiff University, Cardiff, UK
| | - Jeremy Hall
- Division of Psychiatry, University of Edinburgh, Kennedy Tower, Royal Edinburgh Hospital, Edinburgh, UK
| | - Andrew M. McIntosh
- Division of Psychiatry, University of Edinburgh, Kennedy Tower, Royal Edinburgh Hospital, Edinburgh, UK
| |
Collapse
|
42
|
Prata DP, Mechelli A, Picchioni M, Fu CHY, Kane F, Kalidindi S, McDonald C, Kravariti E, Toulopoulou T, Bramon E, Walshe M, Murray R, Collier DA, McGuire PK. No association of Disrupted-in-Schizophrenia-1 variation with prefrontal function in patients with schizophrenia and bipolar disorder. Genes Brain Behav 2010; 10:276-85. [PMID: 21091867 DOI: 10.1111/j.1601-183x.2010.00665.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The Disrupted-in-Schizophrenia-1 (DISC1) gene has been implicated in both schizophrenia and bipolar disorder by linkage and genetic association studies. Altered prefrontal cortical function is a pathophysiological feature of both disorders, and we have recently shown that variation in DISC1 modulates prefrontal activation in healthy volunteers. Our goal was to examine the influence of the DISC1 polymorphism Cys704Ser on prefrontal function in schizophrenia and bipolar disorder. From 2004 to 2008, patients with schizophrenia (N = 44), patients with bipolar disorder (N = 35) and healthy volunteers (N = 53) were studied using functional magnetic resonance imaging while performing a verbal fluency task. The effect of Cys704Ser on cortical activation was compared between groups as Cys704 carriers vs. Ser704 homozygotes. In contrast to the significant effect on prefrontal activation we had previously found in healthy subjects, no significant effect of Cys704Ser was detected in this or any other region in either the schizophrenia or bipolar groups. When controls were compared with patients with schizophrenia, there was a diagnosis by genotype interaction in the left middle/superior frontal gyrus [family-wise error (FWE) P = 0.002]. In this region, Ser704/ser704 controls activated more than Cys704 carriers, and there was a trend in the opposite direction in schizophrenia patients. In contrast to its effect in healthy subjects, variation in DISC1 Cys704Ser704 genotype was not associated with altered prefrontal activation in patients with schizophrenia or bipolar disorder. The absence of an effect in patients may reflect interactions of the effects of DISC1 genotype with the effects of other genes associated with these disorders, and/or with the effects of the disorders on brain function.
Collapse
Affiliation(s)
- D P Prata
- Division of Psychosis Studies, Institute of Psychiatry, King's Health Partners, King's College London, London, UK.
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
43
|
Nicodemus KK, Law AJ, Radulescu E, Luna A, Kolachana B, Vakkalanka R, Rujescu D, Giegling I, Straub RE, McGee K, Gold B, Dean M, Muglia P, Callicott JH, Tan HY, Weinberger DR. Biological validation of increased schizophrenia risk with NRG1, ERBB4, and AKT1 epistasis via functional neuroimaging in healthy controls. ACTA ACUST UNITED AC 2010; 67:991-1001. [PMID: 20921115 DOI: 10.1001/archgenpsychiatry.2010.117] [Citation(s) in RCA: 96] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
CONTEXT NRG1 is a schizophrenia candidate gene and plays an important role in brain development and neural function. Schizophrenia is a complex disorder, with etiology likely due to epistasis. OBJECTIVE To examine epistasis between NRG1 and selected N-methyl-d-aspartate-glutamate pathway partners implicated in its effects, including ERBB4, AKT1, DLG4, NOS1, and NOS1AP. DESIGN Schizophrenia case-control sample analyzed using machine learning algorithms and logistic regression with follow-up using neuroimaging on an independent sample of healthy controls. PARTICIPANTS A referred sample of schizophrenic patients (n = 296) meeting DSM-IV criteria for schizophrenia spectrum disorder and a volunteer sample of controls for case-control comparison (n = 365) and a separate volunteer sample of controls for neuroimaging (n = 172). MAIN OUTCOME MEASURES Epistatic association between single-nucleotide polymorphisms (SNPs) and case-control status; epistatic association between SNPs and the blood oxygen level-dependent physiological response during working memory measured by functional magnetic resonance imaging. RESULTS We observed interaction between NRG1 5' and 3' SNPs rs4560751 and rs3802160 (likelihood ratio test P = .00020) and schizophrenia, which was validated using functional magnetic resonance imaging of working memory in healthy controls; carriers of risk-associated genotypes showed inefficient processing in the dorsolateral prefrontal cortex (P = .015, familywise error corrected). We observed epistasis between NRG1 (rs10503929; Thr286/289/294Met) and its receptor ERBB4 (rs1026882; likelihood ratio test P = .035); a 3-way interaction with these 2 SNPs and AKT1 (rs2494734) was also observed (odds ratio, 27.13; 95% confidence interval, 3.30-223.03; likelihood ratio test P = .042). These same 2- and 3-way interactions were further biologically validated via functional magnetic resonance imaging: healthy individuals carrying risk genotypes for NRG1 and ERBB4, or these 2 together with AKT1, were disproportionately less efficient in dorsolateral prefrontal cortex processing. Lower-level interactions were not observed between NRG1 /ERBB4 and AKT1 in association or neuroimaging, consistent with biological evidence that NRG1 × ERBB4 interaction modulates downstream AKT1 signaling. CONCLUSION Our data suggest complex epistatic effects implicating an NRG1 molecular pathway in cognitive brain function and the pathogenesis of schizophrenia.
Collapse
Affiliation(s)
- Kristin K Nicodemus
- Genes, Cognition, and Psychosis Program, Intramural Research Program, National Institute of Mental Health, National Institutes of Health, Bethesda, MD 20892, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
44
|
Abstract
White matter deficits have been demonstrated in people with bipolar disorder, schizophrenia and their unaffected relatives. These deficits are supported by evidence from post-mortem studies, including microarray investigations which have repeatedly implicated abnormal myelin-associated gene expression. Furthermore, several risk-associated genes have now been identified that encode for proteins which have effects on white matter integrity. These genes include neuregulin-1 (NRG1) polymorphisms of which have been associated with risk to bipolar disorder. NRG1 has been shown to have effects on axonal migration, myelination and oligodendrocyte function. We and others have also shown that 5' risk-associated genetic variants in NRG1 are associated with reductions in both white matter density and integrity in regions associated with prefrontal connectivity. These findings are discussed in the context of the current literature, along with possible future research directions.
Collapse
Affiliation(s)
- Andrew M McIntosh
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, UK
| | | | | | | | | |
Collapse
|
45
|
Patel SD, Le-Niculescu H, Koller DL, Green SD, Lahiri DK, McMahon FJ, Nurnberger JI, Niculescu AB. Coming to grips with complex disorders: genetic risk prediction in bipolar disorder using panels of genes identified through convergent functional genomics. Am J Med Genet B Neuropsychiatr Genet 2010; 153B:850-77. [PMID: 20468069 DOI: 10.1002/ajmg.b.31087] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
We previously proposed and provided proof of principle for the use of a complementary approach, convergent functional genomics (CFG), combining gene expression and genetic data, from human and animal model studies, as a way of mining the existing GWAS datasets for signals that are there already, but did not reach significance using a genetics-only approach [Le-Niculescu et al., 2009b]. CFG provides a fit-to-disease prioritization of genes that leads to generalizability in independent cohorts, and counterbalances the fit-to-cohort prioritization inherent in classic genetic-only approaches, which have been plagued by poor reproducibility across cohorts. We have now extended our previous work to include more datasets of GWAS, and more recent evidence from other lines of work. In essence our analysis is the most comprehensive integration of genetics and functional genomics to date in the field of bipolar disorder. Biological pathway analyses identified top canonical pathways, and epistatic interaction testing inside these pathways has identified genes that merit future follow-up as direct interactors (intra-pathway epistasis, INPEP). Moreover, we have put together a panel of best P-value single nucleotide polymorphisms (SNPs), based on the top candidate genes we identified. We have developed a genetic risk prediction score (GRPS) based on our panel, and demonstrate how in two independent test cohorts the GRPS differentiates between subjects with bipolar disorder and normal controls, in both European-American and African-American populations. Lastly, we describe a prototype of how such testing could be used to categorize disease risk in individuals and aid personalized medicine approaches, in psychiatry and beyond.
Collapse
Affiliation(s)
- S D Patel
- Department of Psychiatry, Indiana University School of Medicine, Indianapolis, Indiana, USA
| | | | | | | | | | | | | | | |
Collapse
|
46
|
Shibuya M, Komi E, Wang R, Kato T, Watanabe Y, Sakai M, Ozaki M, Someya T, Nawa H. Measurement and comparison of serum neuregulin 1 immunoreactivity in control subjects and patients with schizophrenia: an influence of its genetic polymorphism. J Neural Transm (Vienna) 2010; 117:887-95. [DOI: 10.1007/s00702-010-0418-3] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2010] [Accepted: 05/02/2010] [Indexed: 02/07/2023]
|
47
|
Walker RM, Christoforou A, Thomson PA, McGhee KA, Maclean A, Mühleisen TW, Strohmaier J, Nieratschker V, Nöthen MM, Rietschel M, Cichon S, Morris SW, Jilani O, Stclair D, Blackwood DH, Muir WJ, Porteous DJ, Evans KL. Association analysis of Neuregulin 1 candidate regions in schizophrenia and bipolar disorder. Neurosci Lett 2010; 478:9-13. [PMID: 20435087 DOI: 10.1016/j.neulet.2010.04.056] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2010] [Revised: 04/15/2010] [Accepted: 04/23/2010] [Indexed: 02/07/2023]
Abstract
Schizophrenia (SCZ) and bipolar disorder (BPD) are severe heritable psychiatric disorders involving a complex genetic aetiology. Neuregulin 1 (NRG1) is a leading candidate gene for SCZ, and has recently been implicated in BPD. We previously reported association of two NRG1 haplotypes with SCZ and BPD in a Scottish case-control sample. One haplotype is located at the 5' end of the gene (region A), and the other is located at the 3' end (region B). Here, association to haplotypes within regions A and B was assessed in patients with SCZ and BPD in a second Scottish case-control sample and in the two Scottish samples combined. Association to region B was also assessed in patients with SCZ and BPD in a German case-control sample, and in all three samples combined. No evidence was found for association in the new samples when analysed individually; however, in the joint analysis of the two Scottish samples, a region B haplotype comprising two SNPs (rs6988339 and rs3757930) was associated with SCZ and the combined case group (SCZ: p=0.0037, OR=1.3, 95% CI: 1.1-1.6; BPD+SCZ: p=0.0080, OR=1.2, 95% CI: 1.1-1.5), with these associations withstanding multiple testing correction at the single-test level (SCZ: p(st)=0.022; BPD+SCZ: p(st)=0.044). This study supports the involvement of NRG1 variants in the less well studied 3' region in conferring susceptibility to SCZ and BPD in the Scottish population.
Collapse
Affiliation(s)
- Rosie M Walker
- Medical Genetics Section, Centre for Molecular Medicine and Institute of Genetics and Molecular Medicine, Molecular Medicine Centre, Western General Hospital, University of Edinburgh, Crewe Road, Edinburgh EH4 2XU, UK.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
48
|
Abstract
Both genetic and nongenetic risk factors, as well as interactions and correlations between them, are thought to contribute to the etiology of psychiatric and behavioral phenotypes. Genetic epidemiology consistently supports the involvement of genes in liability. Molecular genetic studies have been less successful in identifying liability genes, but recent progress suggests that a number of specific genes contributing to risk have been identified. Collectively, the results are complex and inconsistent, with a single common DNA variant in any gene influencing risk across human populations. Few specific genetic variants influencing risk have been unambiguously identified. Contemporary approaches, however, hold great promise to further elucidate liability genes and variants, as well as their potential inter-relationships with each other and with the environment. We will review the fields of genetic epidemiology and molecular genetics, providing examples from the literature to illustrate the key concepts emerging from this work.
Collapse
Affiliation(s)
- Danielle M Dick
- Department of Psychiatry, Virginia Institute of Psychiatric and Behavioral Genetics, Richmond 23298, USA
| | | | | |
Collapse
|
49
|
Jung RE, Grazioplene R, Caprihan A, Chavez RS, Haier RJ. White matter integrity, creativity, and psychopathology: disentangling constructs with diffusion tensor imaging. PLoS One 2010; 5:e9818. [PMID: 20339554 PMCID: PMC2842439 DOI: 10.1371/journal.pone.0009818] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2009] [Accepted: 02/16/2010] [Indexed: 11/21/2022] Open
Abstract
That creativity and psychopathology are somehow linked remains a popular but controversial idea in neuroscience research. Brain regions implicated in both psychosis-proneness and creative cognition include frontal projection zones and association fibers. In normal subjects, we have previously demonstrated that a composite measure of divergent thinking (DT) ability exhibited significant inverse relationships in frontal lobe areas with both cortical thickness and metabolite concentration of N-acetyl-aspartate (NAA). These findings support the idea that creativity may reside upon a continuum with psychopathology. Here we examine whether white matter integrity, assessed by Fractional Anisotropy (FA), is related to two measures of creativity (Divergent Thinking and Openness to Experience). Based on previous findings, we hypothesize inverse correlations within fronto-striatal circuits. Seventy-two healthy, young adult (18–29 years) subjects were scanned on a 3 Tesla scanner with Diffusion Tensor Imaging. DT measures were scored by four raters (α = .81) using the Consensual Assessment Technique, from which a composite creativity index (CCI) was derived. We found that the CCI was significantly inversely related to FA within the left inferior frontal white matter (t = 5.36, p = .01), and Openness was inversely related to FA within the right inferior frontal white matter (t = 4.61, p = .04). These findings demonstrate an apparent overlap in specific white matter architecture underlying the normal variance of divergent thinking, openness, and psychotic-spectrum traits, consistent with the idea of a continuum.
Collapse
Affiliation(s)
- Rex E Jung
- Mind Research Network, University of New Mexico, Albuquerque, New Mexico, United States of America.
| | | | | | | | | |
Collapse
|
50
|
Mechelli A, Viding E, Pettersson-Yeo W, Tognin S, McGuire PK. Genetic variation in neuregulin1 is associated with differences in prefrontal engagement in children. Hum Brain Mapp 2010; 30:3934-43. [PMID: 19449332 DOI: 10.1002/hbm.20818] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
The majority of psychopathology is rooted early in life and first emerges during childhood and adolescence. However, little is known about how risk genes affect brain function to increase biological vulnerability to psychopathology in childhood, because most imaging genetic studies published so far have been conducted on adult participants. We examined the impact of neuregulin1 (NRG1), a probable susceptibility gene for schizophrenia and bipolar disorder, on brain function in a sample of 102 ten- to twelve-year-old children. Each participant performed a Go/Nogo task, whereas brain responses were measured using functional magnetic resonance imaging. Statistical parametric mapping was used to estimate the impact of genetic variation in NRG1 on brain activation. Response accuracy and reaction times did not differ as a function of NRG1 genotype. However, individuals with the high-risk variant expressed greater brain activation for both Go and Nogo stimuli in the right posterior orbital gyrus, where NRG1 genotype accounted for 11% of interindividual variance. There were no regions showing a significant interaction between NRG1 genotype and stimulus type even at trend level, suggesting that the impact of NRG1 on brain activation was not specific to either response inhibition or motor execution. These results suggest that that genetic variation in NRG1 is associated with different levels of prefrontal engagement in children as young as 10-12 years of age. Our investigation provides support to the idea that genetic factors may affect brain function to moderate vulnerability to psychopathology from childhood.
Collapse
Affiliation(s)
- Andrea Mechelli
- Department of Psychology, Institute of Psychiatry, King's College London, London, United Kingdom.
| | | | | | | | | |
Collapse
|