Brain proteome changes in female Brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia risk
Genetic and molecular studies have implicated the Bromodomain containing 1 (BRD1) gene in the pathogenesis of schizophrenia and bipolar disorder. Accordingly, mice heterozygous for a targeted deletion of Brd1 (Brd1+/− mice) show behavioral phenotypes with broad translational relevance to psychiatric...
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Format: | Article |
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Elsevier
2019-04-01
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Series: | Neurobiology of Disease |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S0969996118307678 |
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doaj-875e299819b6481f9b5c6576a399b7c1 |
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record_format |
Article |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Veerle Paternoster Maria Svanborg Anders Valdemar Edhager Anto P. Rajkumar Esben Ahlburg Eickhardt Jonatan Pallesen Jakob Grove Per Qvist Tue Fryland Gregers Wegener Jens Randel Nyengaard Ole Mors Johan Palmfeldt Anders Dupont Børglum Jane Hvarregaard Christensen |
spellingShingle |
Veerle Paternoster Maria Svanborg Anders Valdemar Edhager Anto P. Rajkumar Esben Ahlburg Eickhardt Jonatan Pallesen Jakob Grove Per Qvist Tue Fryland Gregers Wegener Jens Randel Nyengaard Ole Mors Johan Palmfeldt Anders Dupont Børglum Jane Hvarregaard Christensen Brain proteome changes in female Brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia risk Neurobiology of Disease Dendritic spine Cytoskeleton Proteomics TMT10plex Bromodomain containing 1 Animal model |
author_facet |
Veerle Paternoster Maria Svanborg Anders Valdemar Edhager Anto P. Rajkumar Esben Ahlburg Eickhardt Jonatan Pallesen Jakob Grove Per Qvist Tue Fryland Gregers Wegener Jens Randel Nyengaard Ole Mors Johan Palmfeldt Anders Dupont Børglum Jane Hvarregaard Christensen |
author_sort |
Veerle Paternoster |
title |
Brain proteome changes in female Brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia risk |
title_short |
Brain proteome changes in female Brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia risk |
title_full |
Brain proteome changes in female Brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia risk |
title_fullStr |
Brain proteome changes in female Brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia risk |
title_full_unstemmed |
Brain proteome changes in female Brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia risk |
title_sort |
brain proteome changes in female brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia risk |
publisher |
Elsevier |
series |
Neurobiology of Disease |
issn |
1095-953X |
publishDate |
2019-04-01 |
description |
Genetic and molecular studies have implicated the Bromodomain containing 1 (BRD1) gene in the pathogenesis of schizophrenia and bipolar disorder. Accordingly, mice heterozygous for a targeted deletion of Brd1 (Brd1+/− mice) show behavioral phenotypes with broad translational relevance to psychiatric disorders. BRD1 encodes a scaffold protein that affects the expression of many genes through modulation of histone acetylation. BRD1 target genes have been identified in cell lines; however the impact of reduced Brd1 levels on the brain proteome is largely unknown. In this study, we applied label-based quantitative mass spectrometry to profile the frontal cortex, hippocampus and striatum proteome and synaptosomal proteome of female Brd1+/− mice. We successfully quantified between 1537 and 2196 proteins and show widespread changes in protein abundancies and compartmentalization. By integrative analysis of human genetic data, we find that the differentially abundant proteins in frontal cortex and hippocampus are enriched for schizophrenia risk further linking the actions of BRD1 to psychiatric disorders. Affected proteins were further enriched for proteins involved in processes known to influence neuronal and dendritic spine morphology e.g. regulation of cytoskeleton dynamics and mitochondrial function. Directly prompted in these findings, we investigated dendritic spine morphology of pyramidal neurons in anterior cingulate cortex and found them significantly altered, including reduced size of small dendritic spines and decreased number of the mature mushroom type. Collectively, our study describes known as well as new mechanisms related to BRD1 dysfunction and its role in psychiatric disorders, and provides evidence for the molecular and cellular dysfunctions underlying altered neurosignalling and cognition in Brd1+/− mice. |
topic |
Dendritic spine Cytoskeleton Proteomics TMT10plex Bromodomain containing 1 Animal model |
url |
http://www.sciencedirect.com/science/article/pii/S0969996118307678 |
work_keys_str_mv |
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1724207802066403328 |
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doaj-875e299819b6481f9b5c6576a399b7c12021-03-22T12:47:45ZengElsevierNeurobiology of Disease1095-953X2019-04-01124479488Brain proteome changes in female Brd1+/− mice unmask dendritic spine pathology and show enrichment for schizophrenia riskVeerle Paternoster0Maria Svanborg1Anders Valdemar Edhager2Anto P. Rajkumar3Esben Ahlburg Eickhardt4Jonatan Pallesen5Jakob Grove6Per Qvist7Tue Fryland8Gregers Wegener9Jens Randel Nyengaard10Ole Mors11Johan Palmfeldt12Anders Dupont Børglum13Jane Hvarregaard Christensen14The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, Denmark; Department of Clinical Medicine, Translational Neuropsychiatry Unit, Aarhus University, Aarhus, Denmark; Corresponding author at: Department of Biomedicine, Wilhelm Meyers Allé 4, Building 1242, Room 235, 8000 Aarhus C, Denmark.The Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, DenmarkResearch Unit for Molecular Medicine, Aarhus University Hospital, Aarhus, DenmarkThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, Denmark; Mental Health of Older Adults and Dementia Clinical Academic Group, South London and Maudsley NHS Foundation Trust, London, UK; Department of Old Age Psychiatry, Psychology, & Neuroscience, King's College London, Institute of Psychiatry, London, UKThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, DenmarkThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, DenmarkThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, Denmark; Bioinformatics Research Centre, BiRC, Aarhus University, Aarhus, DenmarkThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, DenmarkThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, DenmarkDepartment of Clinical Medicine, Translational Neuropsychiatry Unit, Aarhus University, Aarhus, DenmarkStereology and Electron Microscopy Laboratory, Centre for Stochastic Geometry and Advanced Bioimaging, Aarhus University Hospital, Aarhus, DenmarkThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Clinical Medicine, Translational Neuropsychiatry Unit, Aarhus University, Aarhus, DenmarkResearch Unit for Molecular Medicine, Aarhus University Hospital, Aarhus, DenmarkThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, DenmarkThe Lundbeck Foundation Initiative for Integrative Psychiatric Research, iPSYCH, Aarhus, Denmark; Centre for Integrative Sequencing, iSEQ, Aarhus University, Aarhus, Denmark; Department of Biomedicine, Aarhus University, Aarhus, DenmarkGenetic and molecular studies have implicated the Bromodomain containing 1 (BRD1) gene in the pathogenesis of schizophrenia and bipolar disorder. Accordingly, mice heterozygous for a targeted deletion of Brd1 (Brd1+/− mice) show behavioral phenotypes with broad translational relevance to psychiatric disorders. BRD1 encodes a scaffold protein that affects the expression of many genes through modulation of histone acetylation. BRD1 target genes have been identified in cell lines; however the impact of reduced Brd1 levels on the brain proteome is largely unknown. In this study, we applied label-based quantitative mass spectrometry to profile the frontal cortex, hippocampus and striatum proteome and synaptosomal proteome of female Brd1+/− mice. We successfully quantified between 1537 and 2196 proteins and show widespread changes in protein abundancies and compartmentalization. By integrative analysis of human genetic data, we find that the differentially abundant proteins in frontal cortex and hippocampus are enriched for schizophrenia risk further linking the actions of BRD1 to psychiatric disorders. Affected proteins were further enriched for proteins involved in processes known to influence neuronal and dendritic spine morphology e.g. regulation of cytoskeleton dynamics and mitochondrial function. Directly prompted in these findings, we investigated dendritic spine morphology of pyramidal neurons in anterior cingulate cortex and found them significantly altered, including reduced size of small dendritic spines and decreased number of the mature mushroom type. Collectively, our study describes known as well as new mechanisms related to BRD1 dysfunction and its role in psychiatric disorders, and provides evidence for the molecular and cellular dysfunctions underlying altered neurosignalling and cognition in Brd1+/− mice.http://www.sciencedirect.com/science/article/pii/S0969996118307678Dendritic spineCytoskeletonProteomicsTMT10plexBromodomain containing 1Animal model |