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Irala D, Wang S, Sakers K, Nagendren L, Ulloa Severino FP, Bindu DS, Savage JT, Eroglu C. Astrocyte-secreted neurocan controls inhibitory synapse formation and function. Neuron 2024; 112:1657-1675.e10. [PMID: 38574730 PMCID: PMC11098688 DOI: 10.1016/j.neuron.2024.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 01/22/2024] [Accepted: 03/07/2024] [Indexed: 04/06/2024]
Abstract
Astrocytes strongly promote the formation and maturation of synapses by secreted proteins. Several astrocyte-secreted synaptogenic proteins controlling excitatory synapse development were identified; however, those that induce inhibitory synaptogenesis remain elusive. Here, we identify neurocan as an astrocyte-secreted inhibitory synaptogenic protein. After secretion from astrocytes, neurocan is cleaved into N- and C-terminal fragments. We found that these fragments have distinct localizations in the extracellular matrix. The neurocan C-terminal fragment localizes to synapses and controls cortical inhibitory synapse formation and function. Neurocan knockout mice lacking the whole protein or only its C-terminal synaptogenic domain have reduced inhibitory synapse numbers and function. Through super-resolution microscopy, in vivo proximity labeling by secreted TurboID, and astrocyte-specific rescue approaches, we discovered that the synaptogenic domain of neurocan localizes to somatostatin-positive inhibitory synapses and strongly regulates their formation. Together, our results unveil a mechanism through which astrocytes control circuit-specific inhibitory synapse development in the mammalian brain.
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Affiliation(s)
- Dolores Irala
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA.
| | - Shiyi Wang
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Kristina Sakers
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Leykashree Nagendren
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Francesco Paolo Ulloa Severino
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA; Department of Psychology and Neuroscience, Duke University, Durham, NC 27710, USA; Instituto Cajal, CSIC 28002 Madrid, Spain
| | | | - Justin T Savage
- Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Cagla Eroglu
- Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA; Department of Psychology and Neuroscience, Duke University, Durham, NC 27710, USA; Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA; Duke Institute for Brain Sciences (DIBS), Durham, NC 27710, USA; Howard Hughes Medical Institute, Duke University, Durham, NC 27710, USA.
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2
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Irala D, Wang S, Sakers K, Nagendren L, Ulloa-Severino FP, Bindu DS, Eroglu C. Astrocyte-Secreted Neurocan Controls Inhibitory Synapse Formation and Function. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.03.535448. [PMID: 37066164 PMCID: PMC10104008 DOI: 10.1101/2023.04.03.535448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
Astrocytes strongly promote the formation and maturation of synapses by secreted proteins. To date, several astrocyte-secreted synaptogenic proteins controlling different stages of excitatory synapse development have been identified. However, the identities of astrocytic signals that induce inhibitory synapse formation remain elusive. Here, through a combination of in vitro and in vivo experiments, we identified Neurocan as an astrocyte-secreted inhibitory synaptogenic protein. Neurocan is a chondroitin sulfate proteoglycan that is best known as a protein localized to the perineuronal nets. However, Neurocan is cleaved into two after secretion from astrocytes. We found that the resulting N- and C-terminal fragments have distinct localizations in the extracellular matrix. While the N-terminal fragment remains associated with perineuronal nets, the Neurocan C-terminal fragment localizes to synapses and specifically controls cortical inhibitory synapse formation and function. Neurocan knockout mice lacking the whole protein or only its C-terminal synaptogenic region have reduced inhibitory synapse numbers and function. Through super-resolution microscopy and in vivo proximity labeling by secreted TurboID, we discovered that the synaptogenic domain of Neurocan localizes to somatostatin-positive inhibitory synapses and strongly regulates their formation. Together, our results unveil a mechanism through which astrocytes control circuit-specific inhibitory synapse development in the mammalian brain.
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3
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Wang Z, Liu C, Dong Q, Xue G, Chen C. Polygenic risk score for five major psychiatric disorders associated with volume of distinct brain regions in the general population. Biol Psychol 2023; 178:108530. [PMID: 36858107 DOI: 10.1016/j.biopsycho.2023.108530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 02/23/2023] [Accepted: 02/25/2023] [Indexed: 03/03/2023]
Abstract
Risk genes and abnormal brain structural indices of psychiatric disorders have been extensively studied. However, whether genetic risk influences brain structure in the general population has been rarely studied. The current study enrolled 483 young Chinese adults, calculated their polygenic risk scores (PRS) for psychiatric disorders based on Psychiatric Genomics Consortium GWAS results, and examined the association between PRSs and brain volume. We found that PRSs were associated with the volume of many brain regions, with differences between PRS for different disorder, calculated at different threshold, and calculated using European or East Asian ancestry. Of them, the PRS for Major Depressive Disorder based on European ancestry was positively associated with right temporal gyrus; the PRS for schizophrenia based on East Asian ancestry was negatively associated with right precentral and postcentral gyrus; the PRS for schizophrenia based on European ancestry was positively associated with right superior temporal gyrus. All these brain regions are critical for corresponding disorders. However, no significant associations were found between PRS for Autism Spectrum Disorder / Bipolar Disorder and brain volume; and the association between PRS for Attention Deficit Hyperactivity Disorder at different thresholds and brain volume was inconsistent. These findings suggest distinct brain mechanisms underlying different psychiatric disorders.
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Affiliation(s)
- Ziyi Wang
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China; Experimental School Attached to Haidian Teachers' Training College, Xiangshan Branch, Beijing, China
| | - Chang Liu
- Department of Psychology, Washington State University, Pullman, WA, USA
| | - Qi Dong
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Gui Xue
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China
| | - Chunhui Chen
- State Key Laboratory of Cognitive Neuroscience and Learning & IDG/McGovern Institute for Brain Research, Beijing Normal University, Beijing, China; Beijing Key Laboratory of Brain Imaging and Connectomics, Beijing Normal University, Beijing, China.
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Chaves Filho AJM, Mottin M, Lós DB, Andrade CH, Macedo DS. The tetrapartite synapse in neuropsychiatric disorders: Matrix metalloproteinases (MMPs) as promising targets for treatment and rational drug design. Biochimie 2022; 201:79-99. [PMID: 35931337 DOI: 10.1016/j.biochi.2022.07.015] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2021] [Revised: 06/26/2022] [Accepted: 07/26/2022] [Indexed: 02/06/2023]
Abstract
Inflammation and an exacerbated immune response are widely accepted contributing mechanisms to the genesis and progression of major neuropsychiatric disorders. However, despite the impressive advances in understanding the neurobiology of these disorders, there is still no approved drug directly linked to the regulation of inflammation or brain immune responses. Importantly, matrix metalloproteinases (MMPs) comprise a group of structurally related endopeptidases primarily involved in remodeling extracellular matrix (ECM). In the central nervous system (CNS), these proteases control synaptic plasticity and strength, patency of the blood-brain barrier, and glia-neuron interactions through cleaved and non-cleaved mediators. Several pieces of evidence have pointed to a complex scenario of MMPs dysregulation triggered by neuroinflammation. Furthermore, major psychiatric disorders' affective symptoms and neurocognitive abnormalities are related to MMPs-mediated ECM changes and neuroglia activation. In the past decade, research efforts have been directed to broad-spectrum MMPs inhibitors with frustrating clinical results. However, in the light of recent advances in combinatorial chemistry and drug design technologies, specific and CNS-oriented MMPs modulators have been proposed as a new frontier of therapy for regulating ECM properties in the CNS. Therefore, here we aim to discuss the state of the art of MMPs and ECM abnormalities in major neuropsychiatric disorders, namely depression, bipolar disorder, and schizophrenia, the possible neuro-immune interactions involved in this complex scenario of MMPs dysregulation and propose these endopeptidases as promising targets for rational drug design.
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Affiliation(s)
- Adriano José Maia Chaves Filho
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Universidade Federal do Ceará, Fortaleza, CE, Brazil; Laboratory for Molecular Modeling and Drug Design - LabMol, Faculty of Pharmacy, Universidade Federal de Goiás, Goiânia, GO, Brazil.
| | - Melina Mottin
- Laboratory for Molecular Modeling and Drug Design - LabMol, Faculty of Pharmacy, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Deniele Bezerra Lós
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Universidade Federal do Ceará, Fortaleza, CE, Brazil
| | - Carolina Horta Andrade
- Laboratory for Molecular Modeling and Drug Design - LabMol, Faculty of Pharmacy, Universidade Federal de Goiás, Goiânia, GO, Brazil
| | - Danielle S Macedo
- Neuropharmacology Laboratory, Drug Research and Development Center, Department of Physiology and Pharmacology, Faculty of Medicine, Universidade Federal do Ceará, Fortaleza, CE, Brazil
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5
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Phenotypes, mechanisms and therapeutics: insights from bipolar disorder GWAS findings. Mol Psychiatry 2022; 27:2927-2939. [PMID: 35351989 DOI: 10.1038/s41380-022-01523-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 03/02/2022] [Accepted: 03/10/2022] [Indexed: 12/25/2022]
Abstract
Genome-wide association studies (GWAS) have reported substantial genomic loci significantly associated with clinical risk of bipolar disorder (BD), and studies combining techniques of genetics, neuroscience, neuroimaging, and pharmacology are believed to help tackle clinical problems (e.g., identifying novel therapeutic targets). However, translating findings of psychiatric genetics into biological mechanisms underlying BD pathogenesis remains less successful. Biological impacts of majority of BD GWAS risk loci are obscure, and the involvement of many GWAS risk genes in this illness is yet to be investigated. It is thus necessary to review the progress of applying BD GWAS risk genes in the research and intervention of the disorder. A comprehensive literature search found that a number of such risk genes had been investigated in cellular or animal models, even before they were highlighted in BD GWAS. Intriguingly, manipulation of many BD risk genes (e.g., ANK3, CACNA1C, CACNA1B, HOMER1, KCNB1, MCHR1, NCAN, SHANK2 etc.) resulted in altered murine behaviors largely restoring BD clinical manifestations, including mania-like symptoms such as hyperactivity, anxiolytic-like behavior, as well as antidepressant-like behavior, and these abnormalities could be attenuated by mood stabilizers. In addition to recapitulating phenotypic characteristics of BD, some GWAS risk genes further provided clues for the neurobiology of this illness, such as aberrant activation and functional connectivity of brain areas in the limbic system, and modulated dendritic spine morphogenesis as well as synaptic plasticity and transmission. Therefore, BD GWAS risk genes are undoubtedly pivotal resources for modeling this illness, and might be translational therapeutic targets in the future clinical management of BD. We discuss both promising prospects and cautions in utilizing the bulk of useful resources generated by GWAS studies. Systematic integrations of findings from genetic and neuroscience studies are called for to promote our understanding and intervention of BD.
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Hayes AJ, Melrose J. Neural Tissue Homeostasis and Repair Is Regulated via CS and DS Proteoglycan Motifs. Front Cell Dev Biol 2021; 9:696640. [PMID: 34409033 PMCID: PMC8365427 DOI: 10.3389/fcell.2021.696640] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/13/2021] [Indexed: 01/04/2023] Open
Abstract
Chondroitin sulfate (CS) is the most abundant and widely distributed glycosaminoglycan (GAG) in the human body. As a component of proteoglycans (PGs) it has numerous roles in matrix stabilization and cellular regulation. This chapter highlights the roles of CS and CS-PGs in the central and peripheral nervous systems (CNS/PNS). CS has specific cell regulatory roles that control tissue function and homeostasis. The CNS/PNS contains a diverse range of CS-PGs which direct the development of embryonic neural axonal networks, and the responses of neural cell populations in mature tissues to traumatic injury. Following brain trauma and spinal cord injury, a stabilizing CS-PG-rich scar tissue is laid down at the defect site to protect neural tissues, which are amongst the softest tissues of the human body. Unfortunately, the CS concentrated in gliotic scars also inhibits neural outgrowth and functional recovery. CS has well known inhibitory properties over neural behavior, and animal models of CNS/PNS injury have demonstrated that selective degradation of CS using chondroitinase improves neuronal functional recovery. CS-PGs are present diffusely in the CNS but also form denser regions of extracellular matrix termed perineuronal nets which surround neurons. Hyaluronan is immobilized in hyalectan CS-PG aggregates in these perineural structures, which provide neural protection, synapse, and neural plasticity, and have roles in memory and cognitive learning. Despite the generally inhibitory cues delivered by CS-A and CS-C, some CS-PGs containing highly charged CS disaccharides (CS-D, CS-E) or dermatan sulfate (DS) disaccharides that promote neural outgrowth and functional recovery. CS/DS thus has varied cell regulatory properties and structural ECM supportive roles in the CNS/PNS depending on the glycoform present and its location in tissue niches and specific cellular contexts. Studies on the fruit fly, Drosophila melanogaster and the nematode Caenorhabditis elegans have provided insightful information on neural interconnectivity and the role of the ECM and its PGs in neural development and in tissue morphogenesis in a whole organism environment.
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Affiliation(s)
- Anthony J. Hayes
- Bioimaging Research Hub, Cardiff School of Biosciences, Cardiff University, Wales, United Kingdom
| | - James Melrose
- Graduate School of Biomedical Engineering, University of New South Wales, Sydney, NSW, Australia
- Raymond Purves Bone and Joint Research Laboratories, Kolling Institute of Medical Research, Royal North Shore Hospital and The Faculty of Medicine and Health, The University of Sydney, St. Leonard’s, NSW, Australia
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Pantazopoulos H, Katsel P, Haroutunian V, Chelini G, Klengel T, Berretta S. Molecular signature of extracellular matrix pathology in schizophrenia. Eur J Neurosci 2021; 53:3960-3987. [PMID: 33070392 PMCID: PMC8359380 DOI: 10.1111/ejn.15009] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 10/04/2020] [Indexed: 02/06/2023]
Abstract
Growing evidence points to a critical involvement of the extracellular matrix (ECM) in the pathophysiology of schizophrenia (SZ). Decreases of perineuronal nets (PNNs) and altered expression of chondroitin sulphate proteoglycans (CSPGs) in glial cells have been identified in several brain regions. GWAS data have identified several SZ vulnerability variants of genes encoding for ECM molecules. Given the potential relevance of ECM functions to the pathophysiology of this disorder, it is necessary to understand the extent of ECM changes across brain regions, their region- and sex-specificity and which ECM components contribute to these changes. We tested the hypothesis that the expression of genes encoding for ECM molecules may be broadly disrupted in SZ across several cortical and subcortical brain regions and include key ECM components as well as factors such as ECM posttranslational modifications and regulator factors. Gene expression profiling of 14 neocortical brain regions, caudate, putamen and hippocampus from control subjects (n = 14/region) and subjects with SZ (n = 16/region) was conducted using Affymetrix microarray analysis. Analysis across brain regions revealed widespread dysregulation of ECM gene expression in cortical and subcortical brain regions in SZ, impacting several ECM functional key components. SRGN, CD44, ADAMTS1, ADAM10, BCAN, NCAN and SEMA4G showed some of the most robust changes. Region-, sex- and age-specific gene expression patterns and correlation with cognitive scores were also detected. Taken together, these findings contribute to emerging evidence for large-scale ECM dysregulation in SZ and point to molecular pathways involved in PNN decreases, glial cell dysfunction and cognitive impairment in SZ.
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Affiliation(s)
- Harry Pantazopoulos
- Department of Neurobiology and Anatomical SciencesUniversity of Mississippi Medical CenterJacksonMSUSA
| | - Pavel Katsel
- Department of PsychiatryThe Icahn School of Medicine at Mount SinaiNew YorkNYUSA
- Department of NeuroscienceThe Icahn School of Medicine at Mount SinaiNew YorkNYUSA
- Mental Illness Research Education ClinicalCenters of Excellence (MIRECC)JJ Peters VA Medical CenterBronxNYUSA
| | - Vahram Haroutunian
- Department of PsychiatryThe Icahn School of Medicine at Mount SinaiNew YorkNYUSA
- Department of NeuroscienceThe Icahn School of Medicine at Mount SinaiNew YorkNYUSA
- Mental Illness Research Education ClinicalCenters of Excellence (MIRECC)JJ Peters VA Medical CenterBronxNYUSA
| | - Gabriele Chelini
- Translational Neuroscience LaboratoryMclean HospitalBelmontMAUSA
- Department of PsychiatryHarvard Medical SchoolBostonMAUSA
| | - Torsten Klengel
- Department of PsychiatryHarvard Medical SchoolBostonMAUSA
- Translational Molecular Genomics LaboratoryMclean HospitalBelmontMAUSA
- Department of PsychiatryUniversity Medical Center GöttingenGöttingenGermany
| | - Sabina Berretta
- Translational Neuroscience LaboratoryMclean HospitalBelmontMAUSA
- Department of PsychiatryHarvard Medical SchoolBostonMAUSA
- Program in NeuroscienceHarvard Medical SchoolBostonMAUSA
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8
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Mohamedi Y, Fontanil T, Cal S, Cobo T, Obaya ÁJ. ADAMTS-12: Functions and Challenges for a Complex Metalloprotease. Front Mol Biosci 2021; 8:686763. [PMID: 33996918 PMCID: PMC8119882 DOI: 10.3389/fmolb.2021.686763] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Accepted: 04/21/2021] [Indexed: 12/12/2022] Open
Abstract
Nineteen members of the ADAMTS family of secreted zinc metalloproteinases are present in the human degradome. A wide range of different functions are being attributed to these enzymes and the number of their known substrates is considerably increasing in recent years. ADAMTSs can participate in processes such as fertility, inflammation, arthritis, neuronal and behavioral disorders, as well as cancer. Since its first annotation in 2001, ADAMTS-12 has been described to participate in different processes displayed by members of this family of proteinases. In this sense, ADAMTS-12 performs essential roles in modulation and recovery from inflammatory processes such as colitis, endotoxic sepsis and pancreatitis. ADAMTS-12 has also been involved in cancer development acting either as a tumor suppressor or as a pro-tumoral agent. Furthermore, participation of ADAMTS-12 in arthritis or in neuronal disorders has also been suggested through degradation of components of the extracellular matrix. In addition, ADAMTS-12 proteinase activity can also be modified by interaction with other proteins and thus, can be an alternative way of modulating ADAMTS-12 functions. In this review we revised the most relevant findings about ADAMTS-12 function on the 20th anniversary of its identification.
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Affiliation(s)
- Yamina Mohamedi
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain
| | - Tania Fontanil
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain.,Departamento de Investigación, Instituto Ordóñez, Oviedo, Spain
| | - Santiago Cal
- Departamento de Bioquímica y Biología Molecular, Universidad de Oviedo, Oviedo, Spain.,Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Oviedo, Spain
| | - Teresa Cobo
- Departamento de Cirugía y Especialidades Médico-Quirúrgicas, Universidad de Oviedo, Oviedo, Spain.,Instituto Asturiano de Odontología, Oviedo, Spain
| | - Álvaro J Obaya
- Instituto Universitario de Oncología, IUOPA, Universidad de Oviedo, Oviedo, Spain.,Departamento de Biología Funcional, Área de Fisiología, Universidad de Oviedo, Oviedo, Spain
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9
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Aberrant glycosylation in schizophrenia: a review of 25 years of post-mortem brain studies. Mol Psychiatry 2020; 25:3198-3207. [PMID: 32404945 PMCID: PMC8081047 DOI: 10.1038/s41380-020-0761-1] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 04/18/2020] [Accepted: 04/24/2020] [Indexed: 02/06/2023]
Abstract
Glycosylation, the enzymatic attachment of carbohydrates to proteins and lipids, regulates nearly all cellular processes and is critical in the development and function of the nervous system. Axon pathfinding, neurite outgrowth, synaptogenesis, neurotransmission, and many other neuronal processes are regulated by glycans. Over the past 25 years, studies analyzing post-mortem brain samples have found evidence of aberrant glycosylation in individuals with schizophrenia. Proteins involved in both excitatory and inhibitory neurotransmission display altered glycans in the disease state, including AMPA and kainate receptor subunits, glutamate transporters EAAT1 and EAAT2, and the GABAA receptor. Polysialylated NCAM (PSA-NCAM) and perineuronal nets, highly glycosylated molecules critical for axonal migration and synaptic stabilization, are both downregulated in multiple brain regions of individuals with schizophrenia. In addition, enzymes spanning several pathways of glycan synthesis show differential expression in brains of individuals with schizophrenia. These changes may be due to genetic predisposition, environmental perturbations, medication use, or a combination of these factors. However, the recent association of several enzymes of glycosylation with schizophrenia by genome-wide association studies underscores the importance of glycosylation in this disease. Understanding how glycosylation is dysregulated in the brain will further our understanding of how this pathway contributes to the development and pathophysiology of schizophrenia.
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Kuan PF, Clouston S, Yang X, Kotov R, Bromet E, Luft BJ. Molecular linkage between post-traumatic stress disorder and cognitive impairment: a targeted proteomics study of World Trade Center responders. Transl Psychiatry 2020; 10:269. [PMID: 32753605 PMCID: PMC7403297 DOI: 10.1038/s41398-020-00958-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 07/10/2020] [Accepted: 07/15/2020] [Indexed: 12/16/2022] Open
Abstract
Existing work on proteomics has found common biomarkers that are altered in individuals with post-traumatic stress disorder (PTSD) and mild cognitive impairment (MCI). The current study expands our understanding of these biomarkers by profiling 276 plasma proteins with known involvement in neurobiological processes using the Olink Proseek Multiplex Platform in individuals with both PTSD and MCI compared to either disorder alone and with unaffected controls. Participants were World Trade Center (WTC) responders recruited through the Stony Brook WTC Health Program. PTSD and MCI were measured with the PTSD Checklist (PCL) and the Montreal Cognitive Assessment, respectively. Compared with unaffected controls, we identified 16 proteins associated with comorbid PTSD-MCI at P < 0.05 (six at FDR < 0.1), 20 proteins associated with PTSD only (two at FDR < 0.1), and 24 proteins associated with MCI only (one at FDR < 0.1), for a total of 50 proteins. The multiprotein composite score achieved AUCs of 0.84, 0.77, and 0.83 for PTSD-MCI, PTSD only, and MCI only versus unaffected controls, respectively. To our knowledge, the current study is the largest to profile a large set of proteins involved in neurobiological processes. The significant associations across the three case-group analyses suggest that shared biological mechanisms may be involved in the two disorders. If findings from the multiprotein composite score are replicated in independent samples, it has the potential to add a new tool to help classify both PTSD and MCI.
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Affiliation(s)
- Pei-Fen Kuan
- Department of Applied Mathematics and Statistics, Stony Brook University, Stony Brook, NY, USA
| | - Sean Clouston
- Department of Family and Preventive Medicine, Stony Book University, Stony Brook, NY, USA
| | - Xiaohua Yang
- Department of Medicine, Stony Brook University, Stony Brook, NY, USA
| | - Roman Kotov
- Department of Psychiatry, Stony Book University, Stony Brook, NY, USA
| | - Evelyn Bromet
- Department of Psychiatry, Stony Book University, Stony Brook, NY, USA
| | - Benjamin J Luft
- Department of Medicine, Stony Brook University, Stony Brook, NY, USA.
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11
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Assmann A, Richter A, Schütze H, Soch J, Barman A, Behnisch G, Knopf L, Raschick M, Schult A, Wüstenberg T, Behr J, Düzel E, Seidenbecher CI, Schott BH. Neurocan genome-wide psychiatric risk variant affects explicit memory performance and hippocampal function in healthy humans. Eur J Neurosci 2020; 53:3942-3959. [PMID: 32583466 DOI: 10.1111/ejn.14872] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 06/04/2020] [Accepted: 06/15/2020] [Indexed: 12/26/2022]
Abstract
Alterations of the brain extracellular matrix (ECM) can perturb the structure and function of brain networks like the hippocampus, a key region in human memory that is commonly affected in psychiatric disorders. Here, we investigated the potential effects of a genome-wide psychiatric risk variant in the NCAN gene encoding the ECM proteoglycan neurocan (rs1064395) on memory performance, hippocampal function and cortical morphology in young, healthy volunteers. We assessed verbal memory performance in two cohorts (N = 572, 302) and found reduced recall performance in risk allele (A) carriers across both cohorts. In 117 participants, we performed functional magnetic resonance imaging using a novelty-encoding task with visual scenes. Risk allele carriers showed higher false alarm rates during recognition, accompanied by inefficiently increased left hippocampal activation. To assess effects of rs1064395 on brain morphology, we performed voxel-based morphometry in 420 participants from four independent cohorts and found lower grey matter density in the ventrolateral and rostral prefrontal cortex of risk allele carriers. In silico eQTL analysis revealed that rs1064395 SNP is linked not only to increased prefrontal expression of the NCAN gene itself, but also of the neighbouring HAPLN4 gene, suggesting a more complex effect of the SNP on ECM composition. Our results suggest that the NCAN rs1064395 A allele is associated with lower hippocampus-dependent memory function, variation of prefrontal cortex structure and ECM composition. Considering the well-documented hippocampal and prefrontal dysfunction in bipolar disorder and schizophrenia, our results may reflect an intermediate phenotype by which NCAN rs1064395 contributes to disease risk.
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Affiliation(s)
- Anne Assmann
- Leibniz Institute for Neurobiology, Magdeburg, Germany.,Department of Neurology, Otto von Guericke University, Magdeburg, Germany.,German Center for Neurodegenerative Diseases, Magdeburg, Germany
| | - Anni Richter
- Leibniz Institute for Neurobiology, Magdeburg, Germany
| | - Hartmut Schütze
- German Center for Neurodegenerative Diseases, Magdeburg, Germany.,Institute of Cognitive Neurology and Dementia Research, Otto von Guericke University, Magdeburg, Germany
| | - Joram Soch
- German Center for Neurodegenerative Diseases, Göttingen, Germany.,Bernstein Center for Computational Neuroscience, Humboldt University, Berlin, Germany
| | | | | | - Lea Knopf
- Leibniz Institute for Neurobiology, Magdeburg, Germany.,Department of Neurology, Otto von Guericke University, Magdeburg, Germany
| | - Matthias Raschick
- Leibniz Institute for Neurobiology, Magdeburg, Germany.,Department of Neurology, Otto von Guericke University, Magdeburg, Germany
| | - Annika Schult
- Leibniz Institute for Neurobiology, Magdeburg, Germany.,Department of Neurology, Otto von Guericke University, Magdeburg, Germany
| | - Torsten Wüstenberg
- Department of Psychiatry and Psychotherapy, Charité University Medicine, Berlin, Germany.,Department of Clinical Psychology and Psychotherapy, Institute of Psychology, University of Heidelberg, Heidelberg, Germany
| | - Joachim Behr
- Department of Psychiatry and Psychotherapy, Charité University Medicine, Berlin, Germany.,Department of Psychiatry and Psychotherapy, Medical School Brandenburg, Neuruppin, Germany
| | - Emrah Düzel
- German Center for Neurodegenerative Diseases, Magdeburg, Germany.,Institute of Cognitive Neurology and Dementia Research, Otto von Guericke University, Magdeburg, Germany.,Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Constanze I Seidenbecher
- Leibniz Institute for Neurobiology, Magdeburg, Germany.,Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany
| | - Björn H Schott
- Leibniz Institute for Neurobiology, Magdeburg, Germany.,German Center for Neurodegenerative Diseases, Göttingen, Germany.,Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany.,Department of Psychiatry and Psychotherapy, University Medicine Göttingen, Germany
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12
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Kathuria A, Lopez-Lengowski K, Vater M, McPhie D, Cohen BM, Karmacharya R. Transcriptome analysis and functional characterization of cerebral organoids in bipolar disorder. Genome Med 2020; 12:34. [PMID: 32306996 PMCID: PMC7168850 DOI: 10.1186/s13073-020-00733-6] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Accepted: 04/02/2020] [Indexed: 02/06/2023] Open
Abstract
Background Reprogramming human induced pluripotent stem cells (iPSCs) from somatic cells and generating three-dimensional brain organoids from these iPSCs provide access to live human neuronal tissue with disease-specific genetic backgrounds. Methods Cerebral organoids were generated from iPSCs of eight bipolar disorder (BPI) patients and eight healthy control individuals. RNA-seq experiments were undertaken using RNA isolated from the cerebral organoids. Functional activity in the cerebral organoids was studied using microelectrode arrays. Results RNA-seq data comparing gene expression profiles in the cerebral organoids showed downregulation of pathways involved in cell adhesion, neurodevelopment, and synaptic biology in bipolar disorder along with upregulation of genes involved in immune signaling. The central hub in the network analysis was neurocan (NCAN), which is located in a locus with evidence for genome-wide significant association in BPI. Gene ontology analyses suggested deficits related to endoplasmic reticulum biology in BPI, which was supported by cellular characterization of ER–mitochondria interactions. Functional studies with microelectrode arrays revealed specific deficits in response to stimulation and depolarization in BPI cerebral organoids. Conclusions Our studies in cerebral organoids from bipolar disorder showed dysregulation in genes involved in cell adhesion, immune signaling, and endoplasmic reticulum biology; implicated a central role for the GWAS hit NCAN in the biology of BPI; and showed evidence of deficits in neurotransmission.
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Affiliation(s)
- Annie Kathuria
- Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Chemical Biology Program, Broad Institute of MIT & Harvard, Cambridge, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Kara Lopez-Lengowski
- Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Chemical Biology Program, Broad Institute of MIT & Harvard, Cambridge, MA, USA
| | - Magdalena Vater
- Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA.,Chemical Biology Program, Broad Institute of MIT & Harvard, Cambridge, MA, USA.,Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Donna McPhie
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA.,Schizophrenia and Bipolar Disorder Program, McLean Hospital, Belmont, MA, USA
| | - Bruce M Cohen
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA.,Schizophrenia and Bipolar Disorder Program, McLean Hospital, Belmont, MA, USA
| | - Rakesh Karmacharya
- Center for Genomic Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA. .,Chemical Biology Program, Broad Institute of MIT & Harvard, Cambridge, MA, USA. .,Department of Psychiatry, Harvard Medical School, Boston, MA, USA. .,Schizophrenia and Bipolar Disorder Program, McLean Hospital, Belmont, MA, USA. .,Program in Neuroscience, Harvard University, Cambridge, MA, USA. .,Program in Chemical Biology, Harvard University, Cambridge, MA, USA. .,Harvard Stem Cell Institute, Cambridge, MA, USA.
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13
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Fransen NL, Crusius JBA, Smolders J, Mizee MR, van Eden CG, Luchetti S, Remmerswaal EBM, Hamann J, Mason MRJ, Huitinga I. Post-mortem multiple sclerosis lesion pathology is influenced by single nucleotide polymorphisms. Brain Pathol 2020; 30:106-119. [PMID: 31228212 PMCID: PMC6916567 DOI: 10.1111/bpa.12760] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 06/10/2019] [Indexed: 12/25/2022] Open
Abstract
Over the last few decades, several common single nucleotide polymorphisms (SNPs) have been identified that correlate with clinical outcome in multiple sclerosis (MS), but the pathogenic mechanisms underlying the clinical effects of these SNPs are unknown. This is in part because of the difficulty in the functional translation of genotype into disease-relevant mechanisms. Building on our recent work showing the association of clinical disease course with post-mortem MS lesion characteristics, we hypothesized that SNPs that correlate with clinical disease course would also correlate with specific MS lesion characteristics in autopsy tissue. To test this hypothesis, 179 MS brain donors from the Netherlands Brain Bank MS autopsy cohort were genotyped for 102 SNPs, selected based on their reported associations with clinical outcome or their associations with genes that show differential gene expression in MS lesions. Three SNPs linked to MS clinical severity showed a significant association between the genotype and either the proportion of active lesions (rs2234978/FAS and rs11957313/KCNIP1) or the proportion of mixed active/inactive lesions (rs8056098/CLEC16A). Three SNPs linked to MS pathology-associated genes showed a significant association with either proportion of active lesions (rs3130253/MOG), incidence of cortical gray matter lesions (rs1064395/NCAN) or the proportion of remyelinated lesions (rs5742909/CTLA4). In addition, rs2234978/FAS T-allele carriers showed increased FAS gene expression levels in perivascular T cells and perilesional oligodendrocytes, cell types that have been implicated in MS lesion formation. Thus, by combining pathological characterization of MS brain autopsy tissue with genetics, we now start to translate genotypes linked to clinical outcomes in MS into mechanisms involved in MS lesion pathogenesis.
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Affiliation(s)
- Nina L. Fransen
- Department of NeuroimmunologyThe Netherlands Institute for NeuroscienceAmsterdamThe Netherlands
| | - Jakob B. A. Crusius
- Laboratory for Immunogenetics, Department of Medical Microbiology and Infection ControlAmsterdam UMC, VU UniversityAmsterdamThe Netherlands
| | - Joost Smolders
- Department of NeuroimmunologyThe Netherlands Institute for NeuroscienceAmsterdamThe Netherlands
- MS Center CWZ, Department of NeurologyCanisius Wilhelmina HospitalNijmegenThe Netherlands
| | - Mark R. Mizee
- Department of NeuroimmunologyThe Netherlands Institute for NeuroscienceAmsterdamThe Netherlands
| | - Corbert G. van Eden
- Department of NeuroimmunologyThe Netherlands Institute for NeuroscienceAmsterdamThe Netherlands
| | - Sabina Luchetti
- Department of NeuroimmunologyThe Netherlands Institute for NeuroscienceAmsterdamThe Netherlands
| | - Ester B. M. Remmerswaal
- Department of Experimental Immunology, Amsterdam Infection & Immunity InstituteAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
- Renal Transplant Unit, Department of Internal Medicine, Amsterdam Infection & Immunity InstituteAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
| | - Jörg Hamann
- Department of NeuroimmunologyThe Netherlands Institute for NeuroscienceAmsterdamThe Netherlands
- Department of Experimental Immunology, Amsterdam Infection & Immunity InstituteAmsterdam UMC, University of AmsterdamAmsterdamThe Netherlands
| | - Matthew R. J. Mason
- Department of NeuroimmunologyThe Netherlands Institute for NeuroscienceAmsterdamThe Netherlands
| | - Inge Huitinga
- Department of NeuroimmunologyThe Netherlands Institute for NeuroscienceAmsterdamThe Netherlands
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14
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Del Ser T, Zea MA, Valentí M, Olazarán J, López-Álvarez J, Rebollo-Vázquez A, Ávila-Villanueva M, Frades B, Medina M, Fernández-Blázquez MA. Effects of commonly prescribed drugs on cognition and mild cognitive impairment in healthy elderly people. J Psychopharmacol 2019; 33:965-974. [PMID: 31241413 DOI: 10.1177/0269881119857206] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Chronic drug intake has been associated with negative and positive cognitive effects in elderly people, although subjacent conditions may be confounding factors. AIM To study the effects on cognitive performance of commonly prescribed medications in a cohort of cognitively normal older adults. METHODS Medication intake was recorded during two years in 1087 individuals 70-85 years old, without neurological or psychiatric conditions. The influence of every drug, drug family and therapeutic group on six cognitive scores and on the conversion to mild cognitive impairment over two years was ascertained by cross-sectional and longitudinal analyses controlling for demographic and clinical variables. RESULTS Small effects of several drugs on information processing were found in cross-sectional analyses but only confirmed for a positive effect of vitamin D in case-control analyses. Longitudinal analyses showed no drug effects on the cognitive slopes. Several hypotensive drugs reduced, whereas bromazepam and glucose lowering drugs increased, the conversion rate to mild cognitive impairment with very small effects (R2=0.3-1%). CONCLUSIONS Cognitively healthy elderly individuals show minimal negative effects on information processing associated with chronic intake of some drugs probably related to the subjacent condition. Some drugs slightly affect the rate of conversion to mild cognitive impairment. Positive effects of vitamin D, chondroitin, atorvastatin and antihypertensive drugs, and negative effects of antidepressants and benzodiazepines, should be further explored in studies with longer follow-up.
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Affiliation(s)
- Teodoro Del Ser
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
| | - María-Ascensión Zea
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
| | - Meritxell Valentí
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
| | - Javier Olazarán
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain.,2 Service of Neurology, University Hospital Gregorio Marañón, Madrid, Spain
| | - Jorge López-Álvarez
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain.,3 Service of Psychiatry, University Hospital 12 de Octubre, Madrid, Spain
| | - Ana Rebollo-Vázquez
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
| | - Marina Ávila-Villanueva
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
| | - Belén Frades
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
| | - Miguel Medina
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain.,4 Centro de Investigación Biomédica en Red sobre Enfermedades Degenerativas (CIBERNED), Carlos III Institute of Health, Madrid, Spain
| | - Miguel A Fernández-Blázquez
- 1 Alzheimer's Disease Investigation Research Unit, CIEN Foundation, Carlos III Institute of Health, Queen Sofia Foundation, Alzheimer Research Centre, Madrid, Spain
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15
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Swaroop M, Brooks MJ, Gieser L, Swaroop A, Zheng W. Patient iPSC-derived neural stem cells exhibit phenotypes in concordance with the clinical severity of mucopolysaccharidosis I. Hum Mol Genet 2019; 27:3612-3626. [PMID: 30052969 DOI: 10.1093/hmg/ddy259] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/09/2018] [Indexed: 12/29/2022] Open
Abstract
Mucopolysaccharidosis type I (MPS I) is caused by deficiency of α-l-iduronidase (IDUA), a lysosomal enzyme involved in the breakdown and recycling of glycosaminoglycans (GAGs). Although enzyme replacement therapy is available, the efficacy of the treatment for neuropathic manifestations is limited. To facilitate drug discovery and model disease pathophysiology, we generated neural stem cells (NSCs) from MPS I patient-derived induced pluripotent stem cells (iPSCs). The NSCs exhibited characteristic disease phenotypes with deficiency of IDUA, accumulation of GAGs and enlargement of lysosomes, in agreement with the severity of clinical subgroups of MPS I. Transcriptome profiling of NSCs revealed 429 genes that demonstrated a more extensive change in expression in the most severe Hurler syndrome subgroup compared to the intermediate Hurler-Scheie or the least severe Scheie syndrome subgroups. Clustering and pathway analysis revealed high concordance of the severity of neurological defects with marked dysregulation of GAG biosynthesis, GAG degradation, lysosomal function and autophagy. Gene ontology (GO) analysis identified a dramatic upregulation of the autophagy pathway, especially in the Hurler syndrome subgroup. We conclude that GAG accumulation in the patient-derived cells disrupts lysosomal homeostasis, affecting multiple related cellular pathways in response to IDUA deficiency. These dysregulated processes likely lead to enhanced autophagy and progressively severe disease states. Our study provides potentially useful targets for clinical biomarker development, disease diagnosis and prognosis, and drug discovery.
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Affiliation(s)
- Manju Swaroop
- National Therapeutics for Rare and Neglected Diseases, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
| | - Matthew J Brooks
- Neurobiology-Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Linn Gieser
- Neurobiology-Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Anand Swaroop
- Neurobiology-Neurodegeneration and Repair Laboratory, National Eye Institute, National Institutes of Health, Bethesda, MD, USA
| | - Wei Zheng
- National Therapeutics for Rare and Neglected Diseases, National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, MD, USA
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16
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Drange OK, Smeland OB, Shadrin AA, Finseth PI, Witoelar A, Frei O, Wang Y, Hassani S, Djurovic S, Dale AM, Andreassen OA. Genetic Overlap Between Alzheimer's Disease and Bipolar Disorder Implicates the MARK2 and VAC14 Genes. Front Neurosci 2019; 13:220. [PMID: 30930738 PMCID: PMC6425305 DOI: 10.3389/fnins.2019.00220] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 02/26/2019] [Indexed: 12/20/2022] Open
Abstract
Background: Alzheimer's disease (AD) and bipolar disorder (BIP) are complex traits influenced by numerous common genetic variants, most of which remain to be detected. Clinical and epidemiological evidence suggest that AD and BIP are related. However, it is not established if this relation is of genetic origin. Here, we applied statistical methods based on the conditional false discovery rate (FDR) framework to detect genetic overlap between AD and BIP and utilized this overlap to increase the power to identify common genetic variants associated with either or both traits. Methods: We obtained genome wide association studies data from the International Genomics of Alzheimer's Project part 1 (17,008 AD cases and 37,154 controls) and the Psychiatric Genetic Consortium Bipolar Disorder Working Group (20,352 BIP cases and 31,358 controls). We used conditional QQ-plots to assess overlap in common genetic variants between AD and BIP. We exploited the genetic overlap to re-rank test-statistics for AD and BIP and improve detection of genetic variants using the conditional FDR framework. Results: Conditional QQ-plots demonstrated a polygenic overlap between AD and BIP. Using conditional FDR, we identified one novel genomic locus associated with AD, and nine novel loci associated with BIP. Further, we identified two novel loci jointly associated with AD and BIP implicating the MARK2 gene (lead SNP rs10792421, conjunctional FDR = 0.030, same direction of effect) and the VAC14 gene (lead SNP rs11649476, conjunctional FDR = 0.022, opposite direction of effect). Conclusion: We found polygenic overlap between AD and BIP and identified novel loci for each trait and two jointly associated loci. Further studies should examine if the shared loci implicating the MARK2 and VAC14 genes could explain parts of the shared and distinct features of AD and BIP.
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Affiliation(s)
- Ole Kristian Drange
- Department of Research and Development, Department of Mental Health, Norwegian University of Science and Technology, Trondheim, Norway
- Department of Østmarka, Division of Mental Health Care, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Olav Bjerkehagen Smeland
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Alexey A. Shadrin
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Per Ivar Finseth
- Department of Brøset, Division of Mental Health Care, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway
| | - Aree Witoelar
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Oleksandr Frei
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
| | - Yunpeng Wang
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
| | - Sahar Hassani
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
| | - Srdjan Djurovic
- Department of Medical Genetics, Oslo University Hospital, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Department of Clinical Science, University of Bergen, Bergen, Norway
| | - Anders M. Dale
- Center for Multimodal Imaging and Genetics, Department of Radiology, University of California, San Diego, La Jolla, CA, United States
- Department of Neurosciences, University of California, San Diego, La Jolla, CA, United States
- Department of Psychiatry, University of California, San Diego, La Jolla, CA, United States
| | - Ole A. Andreassen
- Norwegian Centre for Mental Disorders Research, KG Jebsen Centre for Psychosis Research, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
- Norwegian Centre for Mental Disorders Research, Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway
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17
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Wang L, Liu W, Li X, Xiao X, Li L, Liu F, He Y, Bai Y, Chang H, Zhou DS, Li M. Further Evidence of an Association between NCAN rs1064395 and Bipolar Disorder. MOLECULAR NEUROPSYCHIATRY 2018; 4:30-34. [PMID: 29998116 DOI: 10.1159/000488590] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 03/19/2018] [Indexed: 01/16/2023]
Abstract
Genome-wide association studies suggest that rs1064395 in the neurocan gene (NCAN) is a potential risk factor for bipolar disorder (BPD), and further replication analyses in larger independent samples are needed. We herein analyzed rs1064395 in a Han Chinese sample of 1,146 BPD cases and 2,031 controls, followed by a meta-analysis of BPD samples from worldwide populations including a total of 15,318 cases and 91,990 controls. The meta-analysis found that rs1064395 showed a genome-wide significant association with BPD (p = 4.92 × 10-9, OR = 1.126 for the A allele), although it did not reach the significance level in the Han Chinese sample (p = 0.415, OR = 1.070 for the A allele). We also examined the association between the single nucleotide polymorphisms and major depressive disorder (MDD) given the presumed genetic overlap between BPD and MDD, and rs1064395 was also associated with MDD (p = 0.0068, OR = 1.067 for the A allele) in a meta-analysis of 14,543 cases and 14,856 controls. Our data provide further evidence for the involvement of NCAN in the genetic susceptibility to BPD and also implicate its broader role in major mood disorders.
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Affiliation(s)
- Lu Wang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - Weiqing Liu
- Department of Psychiatry, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xingxing Li
- Department of Psychiatry, Ningbo Kangning Hospital, Ningbo, China
| | - Xiao Xiao
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - Lingyi Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - Fang Liu
- Department of Psychiatry, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yuanfang He
- Department of Psychiatry, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Yan Bai
- Department of Psychiatry, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Hong Chang
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, China
| | - Dong-Sheng Zhou
- Department of Psychiatry, Ningbo Kangning Hospital, Ningbo, China
| | - Ming Li
- Key Laboratory of Animal Models and Human Disease Mechanisms of the Chinese Academy of Sciences and Yunnan Province, Kunming Institute of Zoology, Kunming, China
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18
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Identification of NCAN as a candidate gene for developmental dyslexia. Sci Rep 2017; 7:9294. [PMID: 28839234 PMCID: PMC5570950 DOI: 10.1038/s41598-017-10175-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 08/04/2017] [Indexed: 01/22/2023] Open
Abstract
A whole-genome linkage analysis in a Finnish pedigree of eight cases with developmental dyslexia (DD) revealed several regions shared by the affected individuals. Analysis of coding variants from two affected individuals identified rs146011974G > A (Ala1039Thr), a rare variant within the NCAN gene co-segregating with DD in the pedigree. This variant prompted us to consider this gene as a putative candidate for DD. The RNA expression pattern of the NCAN gene in human tissues was highly correlated (R > 0.8) with that of the previously suggested DD susceptibility genes KIAA0319, CTNND2, CNTNAP2 and GRIN2B. We investigated the association of common variation in NCAN to brain structures in two data sets: young adults (Brainchild study, Sweden) and infants (FinnBrain study, Finland). In young adults, we found associations between a common genetic variant in NCAN, rs1064395, and white matter volume in the left and right temporoparietal as well as the left inferior frontal brain regions. In infants, this same variant was found to be associated with cingulate and prefrontal grey matter volumes. Our results suggest NCAN as a new candidate gene for DD and indicate that NCAN variants affect brain structure.
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19
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Jansen S, Gottschling C, Faissner A, Manahan-Vaughan D. Intrinsic cellular and molecular properties of in vivo hippocampal synaptic plasticity are altered in the absence of key synaptic matrix molecules. Hippocampus 2017; 27:920-933. [DOI: 10.1002/hipo.22742] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2016] [Revised: 04/19/2017] [Accepted: 05/12/2017] [Indexed: 12/30/2022]
Affiliation(s)
- Stephan Jansen
- Department of Neurophysiology, Medical Faculty; Ruhr University Bochum; Bochum Germany
| | - Christine Gottschling
- Department of Cell Morphology and Molecular Neurobiology, Faculty of Biology and Biotechnology; Ruhr University Bochum; Bochum Germany
| | - Andreas Faissner
- Department of Cell Morphology and Molecular Neurobiology, Faculty of Biology and Biotechnology; Ruhr University Bochum; Bochum Germany
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20
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Wang P, Cai J, Ni J, Zhang J, Tang W, Zhang C. The NCAN gene: schizophrenia susceptibility and cognitive dysfunction. Neuropsychiatr Dis Treat 2016; 12:2875-2883. [PMID: 27853371 PMCID: PMC5104293 DOI: 10.2147/ndt.s118160] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Cognitive dysfunction has been recognized as a cardinal feature of schizophrenia. Elucidating the neurobiological substrates of cognitive dysfunction in schizophrenia would help identify the underlying mechanism of this disorder. The rs1064395 single nucleotide polymorphism, within the gene encoding neurocan (NCAN), is reported to be associated with schizophrenia in European populations and may influence brain structure in patients with schizophrenia. METHODS In this study, we aimed to explore whether NCAN rs1064395 confers some risk for schizophrenia and cognitive dysfunction in Han Chinese. We recruited 681 patients with schizophrenia and 699 healthy subjects. Two hundred and fifty-four patients were evaluated according to Repeatable Battery for the Assessment of Neuropsychological Status (RBANS). RESULTS There were no significant differences in genotype or allele distributions of the rs1064395 polymorphism between the schizophrenia and control groups. Patients showed significantly poorer performance than controls on immediate memory, visuospatial skill, language, attention, delayed memory, and total RBANS score. Patients with the A/A or A/G genotype of rs1064395 had lower scores of immediate memory, visuospatial skill, attention, and total RBANS score than those with the G/G genotype. We performed an expression quantitative trait loci analysis and observed a significant association between rs1064395 and NCAN expression in the frontal (P=0.0022, P=0.022 after Bonferroni correction) and cerebellar cortex (P=0.0032, P=0.032 after Bonferroni correction). CONCLUSION Our findings indicate that this single nucleotide polymorphism may be a risk factor for cognitive dysfunction in patients with schizophrenia. Further investigations are warranted for validation purposes and to identify the precise mechanism by which rs1064395 influences cognitive performance in patients with schizophrenia.
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Affiliation(s)
- Peirong Wang
- Department of Psychiatry, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang
| | - Jun Cai
- Schizophrenia Program, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai
| | - Jianliang Ni
- Department of Psychiatry, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang
| | - Jiangtao Zhang
- Department of Psychiatry, Tongde Hospital of Zhejiang Province, Hangzhou, Zhejiang
| | - Wei Tang
- Wenzhou Kangning Hospital, Wenzhou, Zhejiang, People's Republic of China
| | - Chen Zhang
- Schizophrenia Program, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai
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21
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Dannlowski U, Kugel H, Grotegerd D, Redlich R, Suchy J, Opel N, Suslow T, Konrad C, Ohrmann P, Bauer J, Kircher T, Krug A, Jansen A, Baune BT, Heindel W, Domschke K, Forstner AJ, Nöthen MM, Treutlein J, Arolt V, Hohoff C, Rietschel M, Witt SH. NCAN Cross-Disorder Risk Variant Is Associated With Limbic Gray Matter Deficits in Healthy Subjects and Major Depression. Neuropsychopharmacology 2015; 40:2510-6. [PMID: 25801500 PMCID: PMC4569958 DOI: 10.1038/npp.2015.86] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 02/03/2015] [Accepted: 03/02/2015] [Indexed: 12/31/2022]
Abstract
Genome-wide association studies have reported an association between NCAN rs1064395 genotype and bipolar disorder. This association was later extended to schizophrenia and major depression. However, the neurobiological underpinnings of these associations are poorly understood. NCAN is implicated in neuronal plasticity and expressed in subcortical brain areas, such as the amygdala and hippocampus, which are critically involved in dysfunctional emotion processing and regulation across diagnostic boundaries. We hypothesized that the NCAN risk variant is associated with reduced gray matter volumes in these areas. Gray matter structure was assessed by voxel-based morphometry on structural MRI data in two independent German samples (healthy subjects, n=512; depressed inpatients, n=171). All participants were genotyped for NCAN rs1064395. Hippocampal and amygdala region-of-interest analyses were performed within each sample. In addition, whole-brain data from the combined sample were analyzed. Risk (A)-allele carriers showed reduced amygdala and hippocampal gray matter volumes in both cohorts with a remarkable spatial overlap. In the combined sample, genotype effects observed for the amygdala and hippocampus survived correction for entire brain volume. Further effects were also observed in the left orbitofrontal cortex and the cerebellum/fusiform gyrus. We conclude that NCAN genotype is associated with limbic gray matter alterations in healthy and depressed subjects in brain areas implicated in emotion perception and regulation. The present data suggest that NCAN forms susceptibility to neurostructural deficits in the amygdala, hippocampus, and prefrontal areas independent of disease, which might lead to disorder onset in the presence of other genetic or environmental risk factors.
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Affiliation(s)
- Udo Dannlowski
- Department of Psychiatry, University of Marburg, Marburg, Germany,Department of Psychiatry, University of Münster, Münster, Germany,Department of Psychiatry, University of Marburg, Rudolf-Bultmann-Strasse 8, 35039 Marburg, Germany, Tel: +49 251 8357218, Fax: +49 251 8356612, E-mail:
| | - Harald Kugel
- Department of Clinical Radiology, University of Münster, Münster, Germany
| | | | - Ronny Redlich
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Janina Suchy
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Nils Opel
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Thomas Suslow
- Department of Psychosomatic Medicine, University of Leipzig, Leipzig, Germany
| | - Carsten Konrad
- Department of Psychiatry, University of Marburg, Marburg, Germany
| | - Patricia Ohrmann
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Jochen Bauer
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Tilo Kircher
- Department of Psychiatry, University of Marburg, Marburg, Germany
| | - Axel Krug
- Department of Psychiatry, University of Marburg, Marburg, Germany
| | - Andreas Jansen
- Department of Psychiatry, University of Marburg, Marburg, Germany
| | - Bernhard T Baune
- Discipline of Psychiatry, School of Medicine, University of Adelaide, Adelaide, SA, Australia
| | - Walter Heindel
- Department of Clinical Radiology, University of Münster, Münster, Germany
| | | | - Andreas J Forstner
- Institute of Human Genetics, University of Bonn, Bonn, Germany,Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Markus M Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany,Department of Genomics, Life and Brain Center, University of Bonn, Bonn, Germany
| | - Jens Treutlein
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Mannheim, Germany
| | - Volker Arolt
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Christa Hohoff
- Department of Psychiatry, University of Münster, Münster, Germany
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Mannheim, Germany
| | - Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Mannheim, Germany
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22
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Wood PL, Holderman NR. Dysfunctional glycosynapses in schizophrenia: disease and regional specificity. Schizophr Res 2015; 166:235-7. [PMID: 26004690 DOI: 10.1016/j.schres.2015.05.017] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/04/2015] [Accepted: 05/07/2015] [Indexed: 12/31/2022]
Abstract
BACKGROUND Our previous lipidomics studies demonstrated elevated sulfatides, plasmalogens, and N-acylphosphatidylserines in the frontal cortex of schizophrenia subjects. These data suggest that there may be an abnormal function of glycosynapses in schizophrenia. We further examined the disease and anatomical specificity of these observations. METHODS We undertook a targeted lipidomics analysis of plasmalogens, sulfatides, and N-acyl-phosphatidylserines in the frontal cortex obtained from schizophrenia, bipolar, and ALS subjects and the cerebellum of schizophrenia subjects. RESULTS We demonstrate that sulfatides, plasmalogens, and N-acyl-phosphatidylserines are significantly elevated in the frontal cortex of patients suffering from schizophrenia and bipolar depression but not in ALS patients. These lipids were unchanged in the cerebellum of subjects with schizophrenia. CONCLUSIONS Our data suggest that dysfunction of oligodendrocyte glycosynapses may be specific to limbic circuits in schizophrenia and that this dysfunction is also detected in bipolar depression, suggesting that these disorders possess several common pathophysiological features.
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Affiliation(s)
- Paul L Wood
- Metabolomics Unit, Dept. of Physiology and Pharmacology, DeBusk College of Osteopathic Medicine, Lincoln Memorial University, 6965 Cumberland Gap Pkwy., Harrogate, TN 37752, United States.
| | - Nicole R Holderman
- Metabolomics Unit, Dept. of Physiology and Pharmacology, DeBusk College of Osteopathic Medicine, Lincoln Memorial University, 6965 Cumberland Gap Pkwy., Harrogate, TN 37752, United States
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23
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Xu L, Qin W, Zhuo C, Zhu J, Liu H, Liu X, Xu Y, Yu C. Selective Functional Disconnection of the Dorsal Subregion of the Temporal Pole in Schizophrenia. Sci Rep 2015; 5:11258. [PMID: 26058049 PMCID: PMC4460906 DOI: 10.1038/srep11258] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2014] [Accepted: 05/19/2015] [Indexed: 01/16/2023] Open
Abstract
Although extensive resting-state functional connectivity (rsFC) changes have been reported in schizophrenia, rsFC changes in the temporal pole (TP) remain unknown. The TP contains several subregions with different connection patterns; however, it is not known whether TP subregions are differentially affected in schizophrenia. Sixty-six schizophrenia patients and 76 healthy comparison subjects underwent resting-state fMRI using a sensitivity-encoded spiral-in (SENSE-SPIRAL) imaging sequence to reduce susceptibility-induced signal loss and distortion. The TP was subdivided into the dorsal (TPd) and ventral (TPv) subregions. Mean fMRI time series were extracted for each TP subregion and entered into a seed-based rsFC analysis. Direct between-group comparisons revealed reduced rsFC between the right TPd and brain regions involved in language processing and multisensory integration in schizophrenia, including the left superior temporal gyrus, left mid-cingulate cortex, and right insular cortex. The rsFC changes of the right TPd in schizophrenia were independent of the grey matter reduction of this subregion. Moreover, these rsFC changes were unrelated to illness severity, duration of illness and antipsychotic medication dosage. No significant group differences were observed in the rsFC of the left TPd and bilateral TPv subregions. These findings suggest a selective (the right TPd) functional disconnection of TP subregions in schizophrenia.
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Affiliation(s)
- Lixue Xu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Wen Qin
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Chuanjun Zhuo
- 1] Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China [2] Tianjin Anding Hospital (Tianjin Mental Health Center), Tianjin City 300222, China [3] Tianjin Anning Hospital, Tianjin City 300300, China
| | - Jiajia Zhu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Huaigui Liu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Xingyun Liu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Yongjie Xu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Chunshui Yu
- Department of Radiology and Tianjin Key Laboratory of Functional Imaging, Tianjin Medical University General Hospital, Tianjin 300052, China
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