1
|
Zhang Q, Huo JH, Guo L, Wang L, Wang C, Li M. Common and rare variants within SP4 exert distinct molecular mechanisms contributing to the risk of schizophrenia. Psychiatry Res 2022; 318:114948. [PMID: 36372009 DOI: 10.1016/j.psychres.2022.114948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 10/18/2022] [Accepted: 11/07/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Qing Zhang
- Zhejiang Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, PR China; School of Basic Medical Science, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Jin-Hua Huo
- Key Laboratory of Animal Models and Human Disease Mechanisms of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, PR China
| | - Lei Guo
- Zhejiang Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, PR China; School of Basic Medical Science, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, PR China
| | - Lu Wang
- Key Laboratory of Animal Models and Human Disease Mechanisms of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, PR China
| | - Chuang Wang
- Zhejiang Key Laboratory of Pathophysiology, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, PR China; School of Basic Medical Science, School of Medicine, Ningbo University, Ningbo, Zhejiang 315211, PR China.
| | - Ming Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of Yunnan Province, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan 650201, PR China.
| |
Collapse
|
2
|
Kolosov N, Daly MJ, Artomov M. Prioritization of disease genes from GWAS using ensemble-based positive-unlabeled learning. Eur J Hum Genet 2021; 29:1527-1535. [PMID: 34276057 PMCID: PMC8484264 DOI: 10.1038/s41431-021-00930-w] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 05/23/2021] [Accepted: 06/21/2021] [Indexed: 02/07/2023] Open
Abstract
A primary challenge in understanding disease biology from genome-wide association studies (GWAS) arises from the inability to directly implicate causal genes from association data. Integration of multiple-omics data sources potentially provides important functional links between associated variants and candidate genes. Machine-learning is well-positioned to take advantage of a variety of such data and provide a solution for the prioritization of disease genes. Yet, classical positive-negative classifiers impose strong limitations on the gene prioritization procedure, such as a lack of reliable non-causal genes for training. Here, we developed a novel gene prioritization tool-Gene Prioritizer (GPrior). It is an ensemble of five positive-unlabeled bagging classifiers (Logistic Regression, Support Vector Machine, Random Forest, Decision Tree, Adaptive Boosting), that treats all genes of unknown relevance as an unlabeled set. GPrior selects an optimal composition of algorithms to tune the model for each specific phenotype. Altogether, GPrior fills an important niche of methods for GWAS data post-processing, significantly improving the ability to pinpoint disease genes compared to existing solutions.
Collapse
Affiliation(s)
- Nikita Kolosov
- ITMO University, St. Petersburg, Russia
- Almazov National Medical Research Center, St. Petersburg, Russia
- Broad Institute, Cambridge, MA, USA
| | - Mark J Daly
- Broad Institute, Cambridge, MA, USA.
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA, USA.
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland.
| | - Mykyta Artomov
- ITMO University, St. Petersburg, Russia.
- Almazov National Medical Research Center, St. Petersburg, Russia.
- Broad Institute, Cambridge, MA, USA.
- Analytic and Translational Genetics Unit, Massachusetts General Hospital, Boston, MA, USA.
- Institute for Molecular Medicine Finland (FIMM), Helsinki, Finland.
| |
Collapse
|
3
|
Grubisha MJ, Sweet RA, MacDonald ML. Investigating Post-translational Modifications in Neuropsychiatric Disease: The Next Frontier in Human Post-mortem Brain Research. Front Mol Neurosci 2021; 14:689495. [PMID: 34335181 PMCID: PMC8322442 DOI: 10.3389/fnmol.2021.689495] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 06/18/2021] [Indexed: 12/27/2022] Open
Abstract
Gene expression and translation have been extensively studied in human post-mortem brain tissue from subjects with psychiatric disease. Post-translational modifications (PTMs) have received less attention despite their implication by unbiased genetic studies and importance in regulating neuronal and circuit function. Here we review the rationale for studying PTMs in psychiatric disease, recent findings in human post-mortem tissue, the required controls for these types of studies, and highlight the emerging mass spectrometry approaches transforming this research direction.
Collapse
Affiliation(s)
- Melanie J. Grubisha
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, United States
| | - Robert A. Sweet
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, United States
| | - Matthew L. MacDonald
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, United States
- Biomedical Mass Spectrometry Center, University of Pittsburgh, Pittsburgh, PA, United States
| |
Collapse
|
4
|
Santos-Terra J, Deckmann I, Fontes-Dutra M, Schwingel GB, Bambini-Junior V, Gottfried C. Transcription factors in neurodevelopmental and associated psychiatric disorders: A potential convergence for genetic and environmental risk factors. Int J Dev Neurosci 2021; 81:545-578. [PMID: 34240460 DOI: 10.1002/jdn.10141] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 06/23/2021] [Accepted: 07/02/2021] [Indexed: 12/16/2022] Open
Abstract
Neurodevelopmental disorders (NDDs) are a heterogeneous and highly prevalent group of psychiatric conditions marked by impairments in the nervous system. Their onset occurs during gestation, and the alterations are observed throughout the postnatal life. Although many genetic and environmental risk factors have been described in this context, the interactions between them challenge the understanding of the pathways associated with NDDs. Transcription factors (TFs)-a group of over 1,600 proteins that can interact with DNA, regulating gene expression through modulation of RNA synthesis-represent a point of convergence for different risk factors. In addition, TFs organize critical processes like angiogenesis, blood-brain barrier formation, myelination, neuronal migration, immune activation, and many others in a time and location-dependent way. In this review, we summarize important TF alterations in NDD and associated disorders, along with specific impairments observed in animal models, and, finally, establish hypotheses to explain how these proteins may be critical mediators in the context of genome-environment interactions.
Collapse
Affiliation(s)
- Júlio Santos-Terra
- Translational Research Group in Autism Spectrum Disorders (GETTEA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,Department of Biochemistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,School of Pharmacology and Biomedical Sciences, University of Central Lancashire, Autism Wellbeing And Research Development (AWARD) Institute, BR-UK-CA, Preston, UK
| | - Iohanna Deckmann
- Translational Research Group in Autism Spectrum Disorders (GETTEA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,Department of Biochemistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,School of Pharmacology and Biomedical Sciences, University of Central Lancashire, Autism Wellbeing And Research Development (AWARD) Institute, BR-UK-CA, Preston, UK
| | - Mellanie Fontes-Dutra
- Translational Research Group in Autism Spectrum Disorders (GETTEA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,Department of Biochemistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,School of Pharmacology and Biomedical Sciences, University of Central Lancashire, Autism Wellbeing And Research Development (AWARD) Institute, BR-UK-CA, Preston, UK
| | - Gustavo Brum Schwingel
- Translational Research Group in Autism Spectrum Disorders (GETTEA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,Department of Biochemistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,School of Pharmacology and Biomedical Sciences, University of Central Lancashire, Autism Wellbeing And Research Development (AWARD) Institute, BR-UK-CA, Preston, UK
| | - Victorio Bambini-Junior
- Translational Research Group in Autism Spectrum Disorders (GETTEA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,School of Pharmacology and Biomedical Sciences, University of Central Lancashire, Autism Wellbeing And Research Development (AWARD) Institute, BR-UK-CA, Preston, UK.,School of Pharmacology and Biomedical Sciences, University of Central Lancashire, Preston, UK
| | - Carmem Gottfried
- Translational Research Group in Autism Spectrum Disorders (GETTEA), Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,Department of Biochemistry, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, Brazil.,National Institute of Science and Technology on Neuroimmunomodulation (INCT-NIM), Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.,School of Pharmacology and Biomedical Sciences, University of Central Lancashire, Autism Wellbeing And Research Development (AWARD) Institute, BR-UK-CA, Preston, UK
| |
Collapse
|
5
|
Pisanu C, Merkouri Papadima E, Melis C, Congiu D, Loizedda A, Orrù N, Calza S, Orrù S, Carcassi C, Severino G, Ardau R, Chillotti C, Del Zompo M, Squassina A. Whole Genome Expression Analyses of miRNAs and mRNAs Suggest the Involvement of miR-320a and miR-155-3p and their Targeted Genes in Lithium Response in Bipolar Disorder. Int J Mol Sci 2019; 20:ijms20236040. [PMID: 31801218 PMCID: PMC6928759 DOI: 10.3390/ijms20236040] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 11/25/2019] [Accepted: 11/27/2019] [Indexed: 02/06/2023] Open
Abstract
Lithium is the mainstay in the maintenance of bipolar disorder (BD) and the most efficacious pharmacological treatment in suicide prevention. Nevertheless, its use is hampered by a high interindividual variability and important side effects. Genetic and epigenetic factors have been suggested to modulate lithium response, but findings so far have not allowed identifying molecular targets with predictive value. In this study we used next generation sequencing to measure genome-wide miRNA expression in lymphoblastoid cell lines from BD patients excellent responders (ER, n = 12) and non-responders (NR, n = 12) to lithium. These data were integrated with microarray genome-wide expression data to identify pairs of miRNA/mRNA inversely and significantly correlated. Significant pairs were prioritized based on strength of association and in-silico miRNA target prediction analyses to select candidates for validation with qRT-PCR. Thirty-one miRNAs were differentially expressed in ER vs. NR and inversely correlated with 418 genes differentially expressed between the two groups. A total of 331 of these correlations were also predicted by in-silico algorithms. miR-320a and miR-155-3p, as well as three of their targeted genes (CAPNS1 (Calpain Small Subunit 1) and RGS16 (Regulator of G Protein Signaling 16) for miR-320, SP4 (Sp4 Transcription Factor) for miR-155-3p) were validated. These miRNAs and mRNAs were previously implicated in psychiatric disorders (miR-320a and SP4), key processes of the central nervous system (CAPNS1, RGS16, SP4) or pathways involved in mental illnesses (miR-155-3p). Using an integrated approach, we identified miRNAs and their targeted genes potentially involved in lithium response in BD.
Collapse
Affiliation(s)
- Claudia Pisanu
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.P.); (E.M.P.); (C.M.); (D.C.); (G.S.); (M.D.Z.)
| | - Eleni Merkouri Papadima
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.P.); (E.M.P.); (C.M.); (D.C.); (G.S.); (M.D.Z.)
| | - Carla Melis
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.P.); (E.M.P.); (C.M.); (D.C.); (G.S.); (M.D.Z.)
| | - Donatella Congiu
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.P.); (E.M.P.); (C.M.); (D.C.); (G.S.); (M.D.Z.)
| | - Annalisa Loizedda
- Consiglio Nazionale delle Ricerche (C.N.R.), Istituto di Ricerca Genetica e Biomedica (I.R.G.B.), Monserrato, 09042 Cagliari, Italy;
| | - Nicola Orrù
- Medical Genetics, R. Binaghi Hospital, ASSL Cagliari, ATS Sardegna, 09021 Cagliari, Italy; (N.O.); (S.O.); (C.C.)
| | - Stefano Calza
- Unit of Biostatistics and Bioinformatics, Department of Molecular and Translational Medicine, University of Brescia, 25121 Brescia, Italy;
- Big & Open Data Innovation Laboratory, University of Brescia, 25121 Brescia, Italy
| | - Sandro Orrù
- Medical Genetics, R. Binaghi Hospital, ASSL Cagliari, ATS Sardegna, 09021 Cagliari, Italy; (N.O.); (S.O.); (C.C.)
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, 09042 Cagliari, Italy
| | - Carlo Carcassi
- Medical Genetics, R. Binaghi Hospital, ASSL Cagliari, ATS Sardegna, 09021 Cagliari, Italy; (N.O.); (S.O.); (C.C.)
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, 09042 Cagliari, Italy
| | - Giovanni Severino
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.P.); (E.M.P.); (C.M.); (D.C.); (G.S.); (M.D.Z.)
| | - Raffaella Ardau
- Unit of Clinical Pharmacology of the University Hospital of Cagliari, 09042 Cagliari, Italy; (R.A.); (C.C.)
| | - Caterina Chillotti
- Unit of Clinical Pharmacology of the University Hospital of Cagliari, 09042 Cagliari, Italy; (R.A.); (C.C.)
| | - Maria Del Zompo
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.P.); (E.M.P.); (C.M.); (D.C.); (G.S.); (M.D.Z.)
- Unit of Clinical Pharmacology of the University Hospital of Cagliari, 09042 Cagliari, Italy; (R.A.); (C.C.)
| | - Alessio Squassina
- Department of Biomedical Science, Section of Neuroscience and Clinical Pharmacology, University of Cagliari, Monserrato, 09042 Cagliari, Italy; (C.P.); (E.M.P.); (C.M.); (D.C.); (G.S.); (M.D.Z.)
- Correspondence: ; Tel.: +39-070-675-4323
| |
Collapse
|
6
|
Liu Y, Gu HY, Zhu J, Niu YM, Zhang C, Guo GL. Identification of Hub Genes and Key Pathways Associated With Bipolar Disorder Based on Weighted Gene Co-expression Network Analysis. Front Physiol 2019; 10:1081. [PMID: 31481902 PMCID: PMC6710482 DOI: 10.3389/fphys.2019.01081] [Citation(s) in RCA: 64] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 08/07/2019] [Indexed: 12/11/2022] Open
Abstract
Bipolar disorder (BD) is a complex mental disorder with high mortality and disability rates worldwide; however, research on its pathogenesis and diagnostic methods remains limited. This study aimed to elucidate potential candidate hub genes and key pathways related to BD in a pre-frontal cortex sample. Raw gene expression profile files of GSE53987, including 36 samples, were obtained from the gene expression omnibus (GEO) database. After data pre-processing, 10,094 genes were selected for weighted gene co-expression network analysis (WGCNA). After dividing highly related genes into 19 modules, we found that the pink, midnight blue, and brown modules were highly correlated with BD. Functional annotation and pathway enrichment analysis for modules, which indicated some key pathways, were conducted based on the Enrichr database. One of the most remarkable significant pathways is the Hippo signaling pathway and its positive transcriptional regulation. Finally, 30 hub genes were identified in three modules. Hub genes with a high degree of connectivity in the PPI network are significantly enriched in positive regulation of transcription. In addition, the hub genes were validated based on another dataset (GSE12649). Taken together, the identification of these 30 hub genes and enrichment pathways might have important clinical implications for BD treatment and diagnosis.
Collapse
Affiliation(s)
- Yang Liu
- Center for Evidence-Based Medicine and Clinical Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Hui-Yun Gu
- Department of Orthopedic, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Jie Zhu
- Trade Union, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Yu-Ming Niu
- Center for Evidence-Based Medicine and Clinical Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Chao Zhang
- Center for Evidence-Based Medicine and Clinical Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Guang-Ling Guo
- Center of Women’s Health Sciences, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| |
Collapse
|
7
|
Cope ZA, Powell SB, Young JW. Modeling neurodevelopmental cognitive deficits in tasks with cross-species translational validity. GENES BRAIN AND BEHAVIOR 2016; 15:27-44. [PMID: 26667374 DOI: 10.1111/gbb.12268] [Citation(s) in RCA: 35] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 10/14/2015] [Accepted: 10/27/2015] [Indexed: 12/24/2022]
Abstract
Numerous psychiatric disorders whose cognitive dysfunction links to functional outcome have neurodevelopmental origins including schizophrenia, autism and bipolar disorder. Treatments are needed for these cognitive deficits, which require development using animal models. Models of neurodevelopmental disorders are as varied and diverse as the disorders themselves, recreating some but not all aspects of the disorder. This variety may in part underlie why purported procognitive treatments translated from these models have failed to restore functioning in the targeted patient populations. Further complications arise from environmental factors used in these models that can contribute to numerous disorders, perhaps only impacting specific domains, while diagnostic boundaries define individual disorders, limiting translational efficacy. The Research Domain Criteria project seeks to 'develop new ways to classify mental disorders based on behavioral dimensions and neurobiological measures' in hopes of facilitating translational research by remaining agnostic toward diagnostic borders derived from clinical presentation in humans. Models could therefore recreate biosignatures of cognitive dysfunction irrespective of disease state. This review highlights work within the field of neurodevelopmental models of psychiatric disorders tested in cross-species translational cognitive paradigms that directly inform this newly developing research strategy. By expounding on this approach, the hopes are that a fuller understanding of each model may be attainable in terms of the cognitive profile elicited by each manipulation. Hence, conclusions may begin to be drawn on the nature of cognitive neuropathology on neurodevelopmental and other disorders, increasing the chances of procognitive treatment development for individuals affected in specific cognitive domains.
Collapse
Affiliation(s)
- Z A Cope
- Department of Psychiatry, University of California San Diego, La Jolla
| | - S B Powell
- Department of Psychiatry, University of California San Diego, La Jolla.,Research Service, VA San Diego Healthcare System, San Diego, CA, USA
| | - J W Young
- Department of Psychiatry, University of California San Diego, La Jolla.,Research Service, VA San Diego Healthcare System, San Diego, CA, USA
| |
Collapse
|
8
|
Papavassiliou KA, Papavassiliou AG. Transcription Factor Drug Targets. J Cell Biochem 2016; 117:2693-2696. [PMID: 27191703 DOI: 10.1002/jcb.25605] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Accepted: 05/17/2016] [Indexed: 01/09/2023]
Abstract
Transcription factors represent the point of convergence of multiple signaling pathways within eukaryotic cells. Deregulated transcription factors contribute to the pathogenesis of a plethora of human diseases, ranging from diabetes, inflammatory disorders and cardiovascular disease to many cancers, and thus these proteins hold great therapeutic potential. Direct modulation of transcription factor function by small molecules is no longer regarded a Sisyphean task, as recent work in drug discovery has revealed that transcription factors are amenable to drug inhibition. Here in we summarize, recent advances regarding the significance of transcription factors in human diseases and we discuss emerging pharmacological strategies to modulate transcription factor function. J. Cell. Biochem. 117: 2693-2696, 2016. © 2016 Wiley Periodicals, Inc.
Collapse
Affiliation(s)
- Kostas A Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Athanasios G Papavassiliou
- Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527, Athens, Greece.
| |
Collapse
|
9
|
Pinacho R, Saia G, Fusté M, Meléndez-Pérez I, Villalta-Gil V, Haro JM, Gill G, Ramos B. Phosphorylation of transcription factor specificity protein 4 is increased in peripheral blood mononuclear cells of first-episode psychosis. PLoS One 2015; 10:e0125115. [PMID: 25915526 PMCID: PMC4411105 DOI: 10.1371/journal.pone.0125115] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Accepted: 03/20/2015] [Indexed: 12/20/2022] Open
Abstract
Background Altered expression of transcription factor specificity protein 4 (SP4) has been found in the postmortem brain of patients with psychiatric disorders including schizophrenia and bipolar disorder. Reduced levels of SP4 protein have recently been reported in peripheral blood mononuclear cells in first-episode psychosis. Also, SP4 levels are modulated by lithium treatment in cultured neurons. Phosphorylation of SP4 at S770 is increased in the cerebellum of bipolar disorder subjects and upon inhibition of NMDA receptor signaling in cultured neurons. The aim of this study was to investigate whether SP4 S770 phosphorylation is increased in lymphocytes of first-episode psychosis patients and the effect of lithium treatment on this phosphorylation. Methods A cross-sectional study of S770 phosphorylation relative to total SP4 immunoreactivity using specific antibodies in peripheral blood mononuclear cells in first-episode psychosis patients (n = 14, treated with lithium or not) and matched healthy controls (n = 14) by immunoblot was designed. We also determined the effects of the prescribed drugs lithium, olanzapine or valproic acid on SP4 phosphorylation in rat primary cultured cerebellar granule neurons. Results We found that SP4 S770 phosphorylation was significantly increased in lymphocytes in first-episode psychosis compared to controls and decreased in patients treated with lithium compared to patients who did not receive lithium. Moreover, incubation with lithium but not olanzapine or valproic acid reduced SP4 phosphorylation in rat cultured cerebellar granule neurons. Conclusions The findings presented here indicate that SP4 S770 phosphorylation is increased in lymphocytes in first-episode psychosis which may be reduced by lithium treatment in patients. Moreover, our study shows lithium treatment prevents this phosphorylation in vitro in neurons. This pilot study suggests that S770 SP4 phosphorylation could be a peripheral biomarker of psychosis, and may be regulated by lithium treatment in first-episode psychosis.
Collapse
Affiliation(s)
- Raquel Pinacho
- Unitat de recerca, Fundació Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
| | - Gregory Saia
- Department of Developmental, Molecular, and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
- Cell, Molecular and Developmental Biology Program, Sackler School of Biomedical Sciences, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Montserrat Fusté
- Unitat de recerca, Fundació Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
| | - Iria Meléndez-Pérez
- Unitat de recerca, Fundació Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
| | - Victoria Villalta-Gil
- Unitat de recerca, Fundació Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
| | - Josep Maria Haro
- Unitat de recerca, Fundació Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
| | - Grace Gill
- Department of Developmental, Molecular, and Chemical Biology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
- * E-mail: (BR); (GG)
| | - Belén Ramos
- Unitat de recerca, Fundació Sant Joan de Déu, Parc Sanitari Sant Joan de Déu, Universitat de Barcelona, Centro de Investigación Biomédica en Red de Salud Mental, CIBERSAM, Sant Boi de Llobregat, Barcelona, Spain
- * E-mail: (BR); (GG)
| |
Collapse
|