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Isomura Y, Ohno M, Sudo S, Ono M, Kaminishi Y, Sumi Y, Yoshimura A, Fujii K, Akiyama K, Nishi E, Ozeki Y. Associations among plasma markers for N-methyl-d-aspartate receptor hypofunction, redox dysregulation, and insufficient myelination in patients with schizophrenia. Heliyon 2024; 10:e30193. [PMID: 38694089 PMCID: PMC11061757 DOI: 10.1016/j.heliyon.2024.e30193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 04/21/2024] [Accepted: 04/22/2024] [Indexed: 05/03/2024] Open
Abstract
Background Several hypotheses regarding the pathomechanisms of schizophrenia have been proposed. If schizophrenia is a unitary disease, then these pathological processes must be linked; however, if such links do not exist, schizophrenia may best be considered a group of disorders. Only a few studies have examined the relationships among these pathomechanisms. Herein, we examined the relationships among deficient myelination, NMDA receptor hypofunction, and metabolic dysregulation by measuring various plasma markers and examining their correlations. Methods Plasma samples were collected from 90 patients with schizophrenia and 68 healthy controls. Concentrations of nardilysin (N-arginine dibasic convertase, NRDC), a positive regulator of myelination, the NMDA receptor co-agonist d-serine and glycine, various additional amino acids related to NMDA receptor transmission (glutamate, glutamine, and l-serine), and homocysteine (Hcy), were measured. Concentrations were compared using independent samples t-test or logistic regression, and associations were evaluated using Pearson's correlation coefficients. Results Plasma glycine (t = 2.05, p = 0.042), l-serine (t = 2.25, p = 0.027), and homocysteine (t = 3.71, p < 0.001) concentrations were significantly higher in patients with schizophrenia compared to those in healthy controls. Logistic regression models using age, sex, smoking status, glutamine, glutamate, glycine, l-serine, d-serine, homocysteine, and NRDC as independent variables revealed significantly lower plasma d-serine (p = 0.024) and NRDC (p = 0.028), but significantly higher l-serine (p = 0.024) and homocysteine (p = 0.001) in patients with schizophrenia. Several unique correlations were found between NMDA receptor-related amino acids and NRDC in patients with schizophrenia compared to those in healthy controls, while no correlations were found between plasma homocysteine and other markers. No associations were found between plasma marker concentrations and disease status or cognitive function in patients with schizophrenia, except for a significant correlation between plasma glycine and full intelligence quotient. Conclusion Reduced myelination and NMDA receptor hypofunction may be related to pathological mechanisms in schizophrenia, while homocysteine dysregulation appears to be an independent pathological process. These results suggest that schizophrenia may be a group of disorders with unique or partially overlapping etiologies.
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Affiliation(s)
- Yoshiaki Isomura
- Department of Psychiatry, Shiga University of Medical Science, Japan
| | - Mikiko Ohno
- Department of Pharmacology, Shiga University of Medical Science, Japan
| | - Satoshi Sudo
- Department of Psychiatry, Shiga University of Medical Science, Japan
| | - Mayuko Ono
- Department of Psychiatry, Shiga University of Medical Science, Japan
| | - Yuki Kaminishi
- Department of Psychiatry, Shiga University of Medical Science, Japan
| | - Yukiyoshi Sumi
- Department of Psychiatry, Shiga University of Medical Science, Japan
| | - Atsushi Yoshimura
- Department of Psychiatry, Shiga University of Medical Science, Japan
| | - Kumiko Fujii
- Department of Psychiatry, Shiga University of Medical Science, Japan
| | - Kazufumi Akiyama
- Department of Biological Psychiatry and Neuroscience, Dokkyo Medical University School of Medicine, Japan
| | - Eiichiro Nishi
- Department of Pharmacology, Shiga University of Medical Science, Japan
| | - Yuji Ozeki
- Department of Psychiatry, Shiga University of Medical Science, Japan
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Sarmah T, Bhattacharyya DK. A study of tools for differential co-expression analysis for RNA-Seq data. INFORMATICS IN MEDICINE UNLOCKED 2021. [DOI: 10.1016/j.imu.2021.100740] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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3
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Jin W, Zhang F, Linhardt RJ. Glycosaminoglycans in Neurodegenerative Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1325:189-204. [PMID: 34495536 DOI: 10.1007/978-3-030-70115-4_9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Glycosaminoglycans (GAGs) are linear polysaccharides that consist of alternating disaccharides sequences of uronic acids and/or galactose hexamino sugars most of which are sulfated. GAGs are ubiquitously expressed on the cell surface, in the intracellular milieu and in the extracellular matrix of all animal cells. Thus, GAGs exhibit many essential roles in a variety of physiological and pathological processes. The targets of GAGs are GAG-binding proteins and related proteins that are of significant interest to both the academic community and in the pharmaceutical industry. In this review, the structures of GAGs, their binding proteins, and analogs are presented that further the development of GAGs and their analogs for the treatment of neurodegenerative diseases agents.
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Affiliation(s)
- Weihua Jin
- College of Biotechnology and Bioengineering, Zhejiang University of Technology, Hangzhou, China.,Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA
| | - Fuming Zhang
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.
| | - Robert J Linhardt
- Department of Chemical and Biological Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA. .,Department of Biological Science, Departments of Chemistry and Chemical Biology and Biomedical Engineering, Center for Biotechnology and Interdisciplinary Studies, Rensselaer Polytechnic Institute, Troy, NY, USA.
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4
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Chen FH, Wang Y, Jiang YX, Zhang GH, Wang ZM, Yang H. Clinical determination of serum nardilysin levels in predicting 30-day mortality among adults with malignant cerebral infarction. Clin Chim Acta 2019; 494:8-13. [PMID: 30871973 DOI: 10.1016/j.cca.2019.03.1608] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2019] [Revised: 03/07/2019] [Accepted: 03/08/2019] [Indexed: 02/06/2023]
Abstract
BACKGROUND Nardilysin, a kind of metalloendopeptidase, plays an important role in numerous inflammatory diseases. Malignant cerebral infarction (Glasgow coma scale score of <9) is associated with a high mortality risk. Here, we intended to investigate the relationship between serum nardilysin levels and prognosis of patients with malignant cerebral infarction. METHODS Serum nardilysin concentrations were quantified at malignant cerebral infarction diagnosis moment in 105 patients and at study entrance in 105 healthy controls. Association of nardilysin concentrations with 30-day mortality and overall survival was estimated using multivariate analyses. RESULTS The patients exhibited substantially increased serum nardilysin concentrations, as compared to the controls. Nardilysin concentrations were in pronounced correlation with Glasgow coma scale scores and serum C-reactive protein concentrations. Serum nardilysin was independently predictive of 30-day mortality and overall survival. Under receiver operating characteristic curve, its high discriminatory ability was found. CONCLUSIONS Rising serum nardilysin concentrations following malignant cerebral infarction are strongly related to stroke severity, inflammatory extent and a higher risk of mortality, substantializing serum nardilysin as a potential prognostic biomarker for malignant cerebral infarction.
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Affiliation(s)
- Fang-Hui Chen
- Department of Emergency Medicine, The Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, 261 Huansha Road, Hangzhou 310006, China.
| | - Yi Wang
- Department of Emergency Medicine, The Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, 261 Huansha Road, Hangzhou 310006, China
| | - Yi-Xiang Jiang
- Department of Neurology, The Huangyan Hospital of Wenzhou Medical University, 218 Hengjie Road, Taizhou 318020, China
| | - Gui-Hong Zhang
- Department of Neurology, The Huangyan Hospital of Wenzhou Medical University, 218 Hengjie Road, Taizhou 318020, China
| | - Zhi-Min Wang
- Department of Neurology, The Huangyan Hospital of Wenzhou Medical University, 218 Hengjie Road, Taizhou 318020, China
| | - Hui Yang
- Department of Neurologic Intensive Care Unit, The Huangyan Hospital of Wenzhou Medical University, 218 Hengjie Road, Taizhou 318020, China
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5
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Turck CW, Guest PC, Maccarrone G, Ising M, Kloiber S, Lucae S, Holsboer F, Martins-de-Souza D. Proteomic Differences in Blood Plasma Associated with Antidepressant Treatment Response. Front Mol Neurosci 2017; 10:272. [PMID: 28912679 PMCID: PMC5583163 DOI: 10.3389/fnmol.2017.00272] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2017] [Accepted: 08/11/2017] [Indexed: 01/20/2023] Open
Abstract
The current inability of clinical psychiatry to objectively select the most appropriate treatment is a major factor contributing to the severity and clinical burden of major depressive disorder (MDD). Here, we have attempted to identify plasma protein signatures in 39 MDD patients to predict response over a 6-week treatment period with antidepressants. LC-MS/MS analysis showed that differences in the levels of 29 proteins at baseline were found in the group with a favorable treatment outcome. Most of these proteins were components of metabolism or immune response pathways as well as multiple components of the coagulation cascade. After 6 weeks of treatment, 43 proteins were altered in responders of which 2 (alpha-actinin and nardilysin) had been identified at baseline. In addition, 46 proteins were altered in non-responders and 9 of these (alpha-actinin, alpha-2-macroglobulin, apolipoprotein B-100, attractin, C-reactive protein, fibrinogen alpha chain, fibrinogen beta chain, nardilysin and serine/threonine-protein kinase Chk1) had been identified at baseline. However, it should be stressed that the small sample size precludes generalization of the main results. Further studies to validate these as potential biomarkers of antidepressant treatment response are warranted considering the potential importance to the field of psychiatric disorders. This study provides the groundwork for development of novel objective clinical tests that can help psychiatrists in the clinical management of MDD through improved prediction and monitoring of patient responses to antidepressant treatments.
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Affiliation(s)
| | - Paul C Guest
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of CampinasCampinas, Brazil
| | | | - Marcus Ising
- Max Planck Institute of PsychiatryMunich, Germany
| | - Stefan Kloiber
- Max Planck Institute of PsychiatryMunich, Germany.,Centre for Addiction and Mental HealthToronto, ON, Canada.,Department of Psychiatry, University of TorontoToronto, ON, Canada
| | | | - Florian Holsboer
- Max Planck Institute of PsychiatryMunich, Germany.,HMNC GmbHMunich, Germany
| | - Daniel Martins-de-Souza
- Laboratory of Neuroproteomics, Department of Biochemistry and Tissue Biology, Institute of Biology, University of CampinasCampinas, Brazil.,Neurobiology Center, University of CampinasCampinas, Brazil
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6
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Thomas KT, Anderson BR, Shah N, Zimmer SE, Hawkins D, Valdez AN, Gu Q, Bassell GJ. Inhibition of the Schizophrenia-Associated MicroRNA miR-137 Disrupts Nrg1α Neurodevelopmental Signal Transduction. Cell Rep 2017; 20:1-12. [PMID: 28683304 PMCID: PMC5745041 DOI: 10.1016/j.celrep.2017.06.038] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 04/28/2017] [Accepted: 06/13/2017] [Indexed: 12/14/2022] Open
Abstract
Genomic studies have repeatedly associated variants in the gene encoding the microRNA miR-137 with increased schizophrenia risk. Bioinformatic predictions suggest that miR-137 regulates schizophrenia-associated signaling pathways critical to neural development, but these predictions remain largely unvalidated. In the present study, we demonstrate that miR-137 regulates neuronal levels of p55γ, PTEN, Akt2, GSK3β, mTOR, and rictor. All are key proteins within the PI3K-Akt-mTOR pathway and act downstream of neuregulin (Nrg)/ErbB and BDNF signaling. Inhibition of miR-137 ablates Nrg1α-induced increases in dendritic protein synthesis, phosphorylated S6, AMPA receptor subunits, and outgrowth. Inhibition of miR-137 also blocks mTORC1-dependent responses to BDNF, including increased mRNA translation and dendritic outgrowth, while leaving mTORC1-independent S6 phosphorylation intact. We conclude that miR-137 regulates neuronal responses to Nrg1α and BDNF through convergent mechanisms, which might contribute to schizophrenia risk by altering neural development.
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Affiliation(s)
- Kristen Therese Thomas
- Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA
| | - Bart Russell Anderson
- Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA
| | - Niraj Shah
- Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA
| | - Stephanie Elaine Zimmer
- Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA
| | - Daniel Hawkins
- Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA
| | - Arielle Nicole Valdez
- Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA
| | - Qiaochu Gu
- Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA
| | - Gary Jonathan Bassell
- Department of Cell Biology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA; Department of Neurology, Emory University School of Medicine, 615 Michael Street, Atlanta, GA 30322, USA.
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7
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Neuregulin1 alpha activates migration of neuronal progenitors expressing ErbB4. Mol Cell Neurosci 2016; 77:87-94. [PMID: 27989735 DOI: 10.1016/j.mcn.2016.10.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2015] [Revised: 10/20/2016] [Accepted: 10/26/2016] [Indexed: 12/27/2022] Open
Abstract
Deficits in neuronal migration during development in the central nervous system may contribute to psychiatric diseases. The ligand neuregulin1 (NRG1) and its receptor ErbB4 are genes conferring susceptibility to schizophrenia, playing a key role in the control of neuronal migration both during development and adulthood. Several NRG1 and ErbB4 isoforms were identified, which deeply differ in their characteristics. Here we focused on the four ErbB4 isoforms and the two NRG1 isoforms differing in their EGF-like domain, namely α and β. We hypothesized that these isoforms, which are differently regulated in schizophrenic patients, could play different roles in neuronal migration. Our hypothesis was strengthened by the observation that both NRG1α and NRG1β and the four ErbB4 isoforms are expressed in the medial and lateral ganglionic eminences and in the cortex during development in rat. We analysed in vitro the signal transduction pathways activated by the different ErbB4 isoforms following the treatment with soluble recombinant NRG1α or NRG1β and the ability to stimulate migration. Our data show that two ErbB4 isoforms, namely JMa-cyt2 and JMb-cyt1, following NRG1α and NRG1β treatment, strongly activate AKT phosphorylation, conferring high migratory activity to neuronal progenitors, thus demonstrating that both NRG1α and NRG1β can play a role in neuronal migration.
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8
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Segretain D, Gilleron J, Bacro JN, Di Marco M, Carette D, Pointis G. Ultrastructural localization and distribution of Nardilysin in mammalian male germ cells. Basic Clin Androl 2016; 26:5. [PMID: 27051521 PMCID: PMC4820967 DOI: 10.1186/s12610-016-0032-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2015] [Accepted: 03/10/2016] [Indexed: 11/16/2022] Open
Abstract
Background NRD convertase, also termed Nardilysin, is a Zn++ metalloendopeptidase that specifically cleaves the N-terminus of arginine and lysine residues into dibasic moieties. Although this enzyme was found located within the testis, its function in male reproduction is largely unknown. In addition, the precise distribution of this enzyme within germ cells remains to be determined. Methods To answer these questions, we developed an immuno-gold electron microscopy analysis to detect Nardilysin at ultrastructural level in mice. In addition, we performed a quantitative analysis of these gold particles to statistically estimate the distribution of Nardilysin in the different subcellular compartments of differentiating late spermatids/spermatozoa. Results Expression of Nardilysin in wild-type mice was restricted to germ cells and markedly increased during the last steps of spermiogenesis. In elongated spermatids, we found the enzyme mainly localized in the cytoplasm, more precisely associated with two microtubular structures, the manchette and the axoneme. No labelling was detected over the membranous organelles of the spermatids. To test whether this localization is dependent of the functional microtubules organization of the flagella, we analysed the localization into a specific mouse mutant ebo/ebo (ébouriffé) known to be sterile due to an impairment of the final organization of the flagellum. In the ebo/ebo, the enzyme was still localized over the microtubules of the axoneme and over the isolated cytoplasmic microtubules doublets. Quantification of gold particles in wild-type and mutant flagella revealed the specific association of the enzyme within the microtubular area of the axoneme. Conclusions The strong and specific accumulation of Nardilysin in the manchette and axoneme suggests that the enzyme probably contributes either to the establishment of these specific microtubular structures and/or to their functional properties.
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Affiliation(s)
- D Segretain
- UMR S 1147 Université Paris Descartes, 45 rue des Saint-Pères, 75006 Paris, France ; Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Versailles, 78000 France
| | - J Gilleron
- INSERM U 1065, Université Nice Sophia-Antipolis, 151 route Saint-Antoine de Ginestière BP 2 3194, 06204, Nice, cedex 3 France
| | - J N Bacro
- Institut de Mathématiques et de Modélisation de Montpellier (I3M), UMR CNRS 5149 Université Montpellier, CC 51; 4 place Eugène Bataillon 34095, Montpellier, cedex 5 France
| | - M Di Marco
- UMR S 1147 Université Paris Descartes, 45 rue des Saint-Pères, 75006 Paris, France ; Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Versailles, 78000 France
| | - D Carette
- UMR S 1147 Université Paris Descartes, 45 rue des Saint-Pères, 75006 Paris, France ; Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Versailles, 78000 France
| | - G Pointis
- INSERM U 1065, Université Nice Sophia-Antipolis, 151 route Saint-Antoine de Ginestière BP 2 3194, 06204, Nice, cedex 3 France
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Ferrari R, Forabosco P, Vandrovcova J, Botía JA, Guelfi S, Warren JD, Momeni P, Weale ME, Ryten M, Hardy J. Frontotemporal dementia: insights into the biological underpinnings of disease through gene co-expression network analysis. Mol Neurodegener 2016; 11:21. [PMID: 26912063 PMCID: PMC4765225 DOI: 10.1186/s13024-016-0085-4] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Accepted: 02/15/2016] [Indexed: 12/31/2022] Open
Abstract
Background In frontotemporal dementia (FTD) there is a critical lack in the understanding of biological and molecular mechanisms involved in disease pathogenesis. The heterogeneous genetic features associated with FTD suggest that multiple disease-mechanisms are likely to contribute to the development of this neurodegenerative condition. We here present a systems biology approach with the scope of i) shedding light on the biological processes potentially implicated in the pathogenesis of FTD and ii) identifying novel potential risk factors for FTD. We performed a gene co-expression network analysis of microarray expression data from 101 individuals without neurodegenerative diseases to explore regional-specific co-expression patterns in the frontal and temporal cortices for 12 genes (MAPT, GRN, CHMP2B, CTSC, HLA-DRA, TMEM106B, C9orf72, VCP, UBQLN2, OPTN, TARDBP and FUS) associated with FTD and we then carried out gene set enrichment and pathway analyses, and investigated known protein-protein interactors (PPIs) of FTD-genes products. Results Gene co-expression networks revealed that several FTD-genes (such as MAPT and GRN, CTSC and HLA-DRA, TMEM106B, and C9orf72, VCP, UBQLN2 and OPTN) were clustering in modules of relevance in the frontal and temporal cortices. Functional annotation and pathway analyses of such modules indicated enrichment for: i) DNA metabolism, i.e. transcription regulation, DNA protection and chromatin remodelling (MAPT and GRN modules); ii) immune and lysosomal processes (CTSC and HLA-DRA modules), and; iii) protein meta/catabolism (C9orf72, VCP, UBQLN2 and OPTN, and TMEM106B modules). PPI analysis supported the results of the functional annotation and pathway analyses. Conclusions This work further characterizes known FTD-genes and elaborates on their biological relevance to disease: not only do we indicate likely impacted regional-specific biological processes driven by FTD-genes containing modules, but also do we suggest novel potential risk factors among the FTD-genes interactors as targets for further mechanistic characterization in hypothesis driven cell biology work. Electronic supplementary material The online version of this article (doi:10.1186/s13024-016-0085-4) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Raffaele Ferrari
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Russell Square House, 9-12 Russell Square House, London, WC1N 3BG, UK.
| | - Paola Forabosco
- Istituto di Ricerca Genetica e Biomedica, Cittadella Universitaria di Cagliari, 09042, Monserrato, Sardinia, Italy.
| | - Jana Vandrovcova
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Russell Square House, 9-12 Russell Square House, London, WC1N 3BG, UK. .,King's College London, Department of Medical & Molecular Genetics, Guy's Hospital, London, SE1 9RT, UK.
| | - Juan A Botía
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Russell Square House, 9-12 Russell Square House, London, WC1N 3BG, UK. .,King's College London, Department of Medical & Molecular Genetics, Guy's Hospital, London, SE1 9RT, UK.
| | - Sebastian Guelfi
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Russell Square House, 9-12 Russell Square House, London, WC1N 3BG, UK. .,King's College London, Department of Medical & Molecular Genetics, Guy's Hospital, London, SE1 9RT, UK.
| | - Jason D Warren
- Dementia Research Centre, UCL Institute of Neurology, University College London, London, WC1N 3BG, UK.
| | | | | | - Michael E Weale
- King's College London, Department of Medical & Molecular Genetics, Guy's Hospital, London, SE1 9RT, UK.
| | - Mina Ryten
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Russell Square House, 9-12 Russell Square House, London, WC1N 3BG, UK. .,King's College London, Department of Medical & Molecular Genetics, Guy's Hospital, London, SE1 9RT, UK.
| | - John Hardy
- Department of Molecular Neuroscience, Institute of Neurology, University College London, Russell Square House, 9-12 Russell Square House, London, WC1N 3BG, UK.
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Bernstein HG, Steiner J, Dobrowolny H, Bogerts B. ZNF804A protein is widely expressed in human brain neurons: possible implications on normal brain structure and pathomorphologic changes in schizophrenia. Schizophr Bull 2014; 40:499-500. [PMID: 24442852 PMCID: PMC3984525 DOI: 10.1093/schbul/sbt237] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Affiliation(s)
- Hans-Gert Bernstein
- *To whom correspondence should be addressed; Department of Psychiatry, Medical School, University of Magdeburg, Leipziger Str. 44, D-39120 Magdeburg, Germany; tel: +493916714249, fax: +493916715223, e-mail:
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11
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Bernstein HG, Steiner J, Bogerts B, Stricker R, Reiser G. Nardilysin, ADAM10, and Alzheimer's disease: of mice and men. Neurobiol Aging 2014; 35:e1. [DOI: 10.1016/j.neurobiolaging.2013.08.028] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2013] [Accepted: 08/23/2013] [Indexed: 11/27/2022]
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Bernstein HG, Bogerts B. Neuregulin-1 alpha, the underestimated molecule: emerging new roles in normal brain function and the pathophysiology of schizophrenia? Genome 2013; 56:703-4. [PMID: 24299109 DOI: 10.1139/gen-2013-0171] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
We comment here, from a schizophrenia research perspective, on a recent paper of Ghahramani Seno et al., which clearly shows that the splice variant neuregulin-1 alpha is able to regulate multiple genes involved in phosphorylation, acetylation, and generation of splice variants.
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Affiliation(s)
- Hans-Gert Bernstein
- Department of Psychiatry, University of Magdeburg, Leipziger Str. 44, D-39120 Magdeburg, Germany
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Cytokines, chaperones and neuroinflammatory responses in heroin-related death: what can we learn from different patterns of cellular expression? Int J Mol Sci 2013; 14:19831-45. [PMID: 24084728 PMCID: PMC3821589 DOI: 10.3390/ijms141019831] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 09/22/2013] [Accepted: 09/26/2013] [Indexed: 01/11/2023] Open
Abstract
Heroin (3,6-diacetylmorphine) has various effects on the central nervous system with several neuropathological alterations including hypoxic-ischemic brain damage from respiratory depressing effects and neuroinflammatory response. Both of these mechanisms induce the release of cytokines, chemokines and other inflammatory mediators by the activation of many cell types such as leucocytes and endothelial and glial cells, especially microglia, the predominant immunocompetent cell type within the central nervous system. The aim of this study is to clarify the correlation between intravenous heroin administration in heroin related death and the neuroinflammatory response. We selected 45 cases among autopsies executed for heroin-related death (358 total cases); immunohistochemical studies and Western blotting analyses were used to investigate the expression of brain markers such as tumor necrosis factor-α, oxygen-regulated protein 150, (interleukins) IL-1β, IL-6, IL-8, IL-10, IL-15, cyclooxygenase-2, heat shock protein 70, and CD68 (MAC387). Findings demonstrated that morphine induces inflammatory response and cytokine release. In particular, oxygen-regulated protein 150, cyclooxygenase-2, heat shock protein 70, IL-6 and IL-15 cytokines were over-expressed with different patterns of cellular expression.
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