1
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Tsai YC, Huang SM, Peng HH, Lin SW, Lin SR, Chin TY, Huang SM. Imbalance of synaptic and extrasynaptic NMDA receptors induced by the deletion of CRMP1 accelerates age-related cognitive decline in mice. Neurobiol Aging 2024; 135:48-59. [PMID: 38176125 DOI: 10.1016/j.neurobiolaging.2023.12.006] [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: 07/04/2023] [Revised: 12/25/2023] [Accepted: 12/27/2023] [Indexed: 01/06/2024]
Abstract
Collapsin response mediator protein 1 (CRMP1) is involved in semaphorin 3A signaling pathway, promoting neurite extension and growth cone collapse. It is highly expressed in the nervous system, especially the hippocampus. The crmp1 knockout (KO) mice display impaired spatial learning and memory, and this phenomenon seemingly tends to deteriorate with age. Here we investigated whether CRMP1 is involved in age-related cognitive decline in WT and crmp1 KO mice at adult, middle-aged and older stages. The results revealed that cognitive dysfunction in the Morris water maze task became more severe and decreased glutamate and glutamine level in middle-aged crmp1 KO mice. Additionally, increasing levels of extrasynaptic NMDA receptors and phosphorylation of Tau were observed in middle-aged crmp1 KO mice, leading to synaptic and neuronal loss in the CA3 regions of hippocampus. These findings suggest that deletion of CRMP1 accelerates age-related cognitive decline by disrupting the balance between synaptic and extrasynaptic NMDA receptors, resulting in the loss of synapses and neurons.
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Affiliation(s)
- Yun-Chieh Tsai
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
| | - Sheng-Min Huang
- Institute of Biomedical Engineering and Nanomedicine, National Health Research Institutes, Miaoli, Taiwan
| | - Hsu-Hsia Peng
- Department of Biomedical Engineering and Environmental Sciences, National Tsing Hua University, Hsinchu, Taiwan
| | - Shu-Wha Lin
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Shu-Rung Lin
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan, Taiwan.
| | - Ting-Yu Chin
- Department of Bioscience Technology, Chung Yuan Christian University, Taoyuan, Taiwan.
| | - Shih-Ming Huang
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan; Department of Biochemistry, National Defense Medical Center, Taipei, Taiwan.
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2
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Zengeler KE, Lukens JR. Misguided antibodies change the course of brain development. Mol Psychiatry 2023; 28:1833-1835. [PMID: 36973346 DOI: 10.1038/s41380-023-02042-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Affiliation(s)
- Kristine E Zengeler
- Center for Brain Immunology and Glia (BIG), Department of Neuroscience, Charlottesville, VA, USA.
- Neuroscience Graduate Program, Charlottesville, VA, USA.
- Cell and Molecular Biology Training Program, School of Medicine, University of Virginia, Charlottesville, VA, USA.
| | - John R Lukens
- Center for Brain Immunology and Glia (BIG), Department of Neuroscience, Charlottesville, VA, USA.
- Neuroscience Graduate Program, Charlottesville, VA, USA.
- Cell and Molecular Biology Training Program, School of Medicine, University of Virginia, Charlottesville, VA, USA.
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3
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Chang JH, Chou CH, Wu JC, Liao KM, Luo WJ, Hsu WL, Chen XR, Yu SL, Pan SH, Yang PC, Su KY. LCRMP-1 is required for spermatogenesis and stabilises spermatid F-actin organization via the PI3K-Akt pathway. Commun Biol 2023; 6:389. [PMID: 37037996 PMCID: PMC10086033 DOI: 10.1038/s42003-023-04778-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2022] [Accepted: 03/29/2023] [Indexed: 04/12/2023] Open
Abstract
Long-form collapsin response mediator protein-1 (LCRMP-1) belongs to the CRMP family which comprises brain-enriched proteins responsible for axon guidance. However, its role in spermatogenesis remains unclear. Here we find that LCRMP-1 is abundantly expressed in the testis. To characterize its physiological function, we generate LCRMP-1-deficient mice (Lcrmp-1-/-). These mice exhibit aberrant spermiation with apoptotic spermatids, oligospermia, and accumulation of immature testicular cells, contributing to reduced fertility. In the seminiferous epithelial cycle, LCRMP-1 expression pattern varies in a stage-dependent manner. LCRMP-1 is highly expressed in spermatids during spermatogenesis and especially localized to the spermiation machinery during spermiation. Mechanistically, LCRMP-1 deficiency causes disorganized F-actin due to unbalanced signaling of F-actin dynamics through upregulated PI3K-Akt-mTOR signaling. In conclusion, LCRMP-1 maintains spermatogenesis homeostasis by modulating cytoskeleton remodeling for spermatozoa release.
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Affiliation(s)
- Jung-Hsuan Chang
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chia-Hua Chou
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Jui-Ching Wu
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Keng-Mao Liao
- Genome and Systems Biology Degree Program, National Taiwan University and Academia Sinica, Taipei, Taiwan
| | - Wei-Jia Luo
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Wei-Lun Hsu
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Xuan-Ren Chen
- Graduate Institute of Medical Genomics and Proteomics, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Sung-Liang Yu
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Szu-Hua Pan
- Genome and Systems Biology Degree Program, National Taiwan University and Academia Sinica, Taipei, Taiwan
- Graduate Institute of Medical Genomics and Proteomics, College of Medicine, National Taiwan University, Taipei, Taiwan
- Doctoral Degree Program of Translational Medicine, National Taiwan University, Taipei, Taiwan
| | - Pan-Chyr Yang
- Department of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Kang-Yi Su
- Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, Taiwan.
- Genome and Systems Biology Degree Program, National Taiwan University and Academia Sinica, Taipei, Taiwan.
- Department of Laboratory Medicine, National Taiwan University Hospital, Taipei, Taiwan.
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4
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Desprez F, Ung DC, Vourc’h P, Jeanne M, Laumonnier F. Contribution of the dihydropyrimidinase-like proteins family in synaptic physiology and in neurodevelopmental disorders. Front Neurosci 2023; 17:1154446. [PMID: 37144098 PMCID: PMC10153444 DOI: 10.3389/fnins.2023.1154446] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Accepted: 03/15/2023] [Indexed: 05/06/2023] Open
Abstract
The dihydropyrimidinase-like (DPYSL) proteins, also designated as the collapsin response mediators (CRMP) proteins, constitute a family of five cytosolic phosphoproteins abundantly expressed in the developing nervous system but down-regulated in the adult mouse brain. The DPYSL proteins were initially identified as effectors of semaphorin 3A (Sema3A) signaling and consequently involved in regulation of growth cone collapse in young developing neurons. To date, it has been established that DPYSL proteins mediate signals for numerous intracellular/extracellular pathways and play major roles in variety of cellular process including cell migration, neurite extension, axonal guidance, dendritic spine development and synaptic plasticity through their phosphorylation status. The roles of DPYSL proteins at early stages of brain development have been described in the past years, particularly for DPYSL2 and DPYSL5 proteins. The recent characterization of pathogenic genetic variants in DPYSL2 and in DPYSL5 human genes associated with intellectual disability and brain malformations, such as agenesis of the corpus callosum and cerebellar dysplasia, highlighted the pivotal role of these actors in the fundamental processes of brain formation and organization. In this review, we sought to establish a detailed update on the knowledge regarding the functions of DPYSL genes and proteins in brain and to highlight their involvement in synaptic processing in later stages of neurodevelopment, as well as their particular contribution in human neurodevelopmental disorders (NDDs), such as autism spectrum disorders (ASD) and intellectual disability (ID).
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Affiliation(s)
| | - Dévina C. Ung
- UMR1253, iBrain, Inserm, University of Tours, Tours, France
| | - Patrick Vourc’h
- UMR1253, iBrain, Inserm, University of Tours, Tours, France
- Service de Génétique, Centre Hospitalier Régional Universitaire, Tours, France
- Laboratoire de Biochimie et de Biologie Moléculaire, Centre Hospitalier Régional Universitaire, Tours, France
| | - Médéric Jeanne
- UMR1253, iBrain, Inserm, University of Tours, Tours, France
- Service de Génétique, Centre Hospitalier Régional Universitaire, Tours, France
| | - Frédéric Laumonnier
- UMR1253, iBrain, Inserm, University of Tours, Tours, France
- Service de Génétique, Centre Hospitalier Régional Universitaire, Tours, France
- *Correspondence: Frédéric Laumonnier,
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5
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Ravindran E, Arashiki N, Becker LL, Takizawa K, Lévy J, Rambaud T, Makridis KL, Goshima Y, Li N, Vreeburg M, Demeer B, Dickmanns A, Stegmann APA, Hu H, Nakamura F, Kaindl AM. Monoallelic CRMP1 gene variants cause neurodevelopmental disorder. eLife 2022; 11:80793. [PMID: 36511780 PMCID: PMC9803352 DOI: 10.7554/elife.80793] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022] Open
Abstract
Collapsin response mediator proteins (CRMPs) are key for brain development and function. Here, we link CRMP1 to a neurodevelopmental disorder. We report heterozygous de novo variants in the CRMP1 gene in three unrelated individuals with muscular hypotonia, intellectual disability, and/or autism spectrum disorder. Based on in silico analysis these variants are predicted to affect the CRMP1 structure. We further analyzed the effect of the variants on the protein structure/levels and cellular processes. We showed that the human CRMP1 variants impact the oligomerization of CRMP1 proteins. Moreover, overexpression of the CRMP1 variants affect neurite outgrowth of murine cortical neurons. While altered CRMP1 levels have been reported in psychiatric diseases, genetic variants in CRMP1 gene have never been linked to human disease. We report for the first-time variants in the CRMP1 gene and emphasize its key role in brain development and function by linking directly to a human neurodevelopmental disease.
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Affiliation(s)
- Ethiraj Ravindran
- Department of Pediatric Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Center for Chronically Sick Children, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Institute for Cell Biology and Neurobiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Nobuto Arashiki
- Department of Biochemistry, Tokyo Women's Medical University, Tokyo, Japan
| | - Lena-Luise Becker
- Department of Pediatric Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Center for Chronically Sick Children, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Institute for Cell Biology and Neurobiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Kohtaro Takizawa
- Department of Biochemistry, Tokyo Women's Medical University, Tokyo, Japan
| | - Jonathan Lévy
- Department of Genetics, Robert Debré University Hospital, Paris, France.,Laboratoire de biologie médicale multisites Seqoia, Paris, France
| | - Thomas Rambaud
- Laboratoire de biologie médicale multisites Seqoia, Paris, France
| | - Konstantin L Makridis
- Department of Pediatric Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Center for Chronically Sick Children, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Institute for Cell Biology and Neurobiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
| | - Yoshio Goshima
- Department of Molecular Pharmacology and Neurobiology, Graduate School of Medicine, Yokohama City University, Yokohama, Japan
| | - Na Li
- Laboratory of Medical Systems Biology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Maaike Vreeburg
- Clinical Genetics, Maastricht University Medical Centre, Maastricht, Netherlands
| | - Bénédicte Demeer
- Center for Human Genetics, CLAD Nord de France, CHU Amiens-Picardie, Amiens, France.,CHIMERE EA 7516, University Picardie Jules Verne, Amiens, France
| | - Achim Dickmanns
- Department of Molecular Structural Biology, Institute for Microbiology and Genetics, Georg-August-University Göttingen, Göttingen, Germany
| | | | - Hao Hu
- Laboratory of Medical Systems Biology, Guangzhou Women and Children's Medical Center, Guangzhou Medical University, Guangzhou, China
| | - Fumio Nakamura
- Department of Biochemistry, Tokyo Women's Medical University, Tokyo, Japan
| | - Angela M Kaindl
- Department of Pediatric Neurology, Charité - Universitätsmedizin Berlin, Berlin, Germany.,Center for Chronically Sick Children, Charité-Universitätsmedizin Berlin, Berlin, Germany.,Institute for Cell Biology and Neurobiology, Charité-Universitätsmedizin Berlin, Berlin, Germany
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6
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Cuveillier C, Boulan B, Ravanello C, Denarier E, Deloulme JC, Gory-Fauré S, Delphin C, Bosc C, Arnal I, Andrieux A. Beyond Neuronal Microtubule Stabilization: MAP6 and CRMPS, Two Converging Stories. Front Mol Neurosci 2021; 14:665693. [PMID: 34025352 PMCID: PMC8131560 DOI: 10.3389/fnmol.2021.665693] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 04/09/2021] [Indexed: 12/21/2022] Open
Abstract
The development and function of the central nervous system rely on the microtubule (MT) and actin cytoskeletons and their respective effectors. Although the structural role of the cytoskeleton has long been acknowledged in neuronal morphology and activity, it was recently recognized to play the role of a signaling platform. Following this recognition, research into Microtubule Associated Proteins (MAPs) diversified. Indeed, historically, structural MAPs—including MAP1B, MAP2, Tau, and MAP6 (also known as STOP);—were identified and described as MT-binding and -stabilizing proteins. Extensive data obtained over the last 20 years indicated that these structural MAPs could also contribute to a variety of other molecular roles. Among multi-role MAPs, MAP6 provides a striking example illustrating the diverse molecular and cellular properties of MAPs and showing how their functional versatility contributes to the central nervous system. In this review, in addition to MAP6’s effect on microtubules, we describe its impact on the actin cytoskeleton, on neuroreceptor homeostasis, and its involvement in signaling pathways governing neuron development and maturation. We also discuss its roles in synaptic plasticity, brain connectivity, and cognitive abilities, as well as the potential relationships between the integrated brain functions of MAP6 and its molecular activities. In parallel, the Collapsin Response Mediator Proteins (CRMPs) are presented as examples of how other proteins, not initially identified as MAPs, fall into the broader MAP family. These proteins bind MTs as well as exhibiting molecular and cellular properties very similar to MAP6. Finally, we briefly summarize the multiple similarities between other classical structural MAPs and MAP6 or CRMPs.In summary, this review revisits the molecular properties and the cellular and neuronal roles of the classical MAPs, broadening our definition of what constitutes a MAP.
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7
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FEZ1 Forms Complexes with CRMP1 and DCC to Regulate Axon and Dendrite Development. eNeuro 2021; 8:ENEURO.0193-20.2021. [PMID: 33771901 PMCID: PMC8174033 DOI: 10.1523/eneuro.0193-20.2021] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 02/10/2021] [Accepted: 02/14/2021] [Indexed: 12/12/2022] Open
Abstract
Elaboration of neuronal processes is an early step in neuronal development. Guidance cues must work closely with intracellular trafficking pathways to direct expanding axons and dendrites to their target neurons during the formation of neuronal networks. However, how such coordination is achieved remains incompletely understood. Here, we characterize an interaction between fasciculation and elongation protein zeta 1 (FEZ1), an adapter involved in synaptic protein transport, and collapsin response mediator protein (CRMP)1, a protein that functions in growth cone guidance, at neuronal growth cones. We show that similar to CRMP1 loss-of-function mutants, FEZ1 deficiency in rat hippocampal neurons causes growth cone collapse and impairs axonal development. Strikingly, FEZ1-deficient neurons also exhibited a reduction in dendritic complexity stronger than that observed in CRMP1-deficient neurons, suggesting that the former could partake in additional developmental signaling pathways. Supporting this, FEZ1 colocalizes with VAMP2 in developing hippocampal neurons and forms a separate complex with deleted in colorectal cancer (DCC) and Syntaxin-1 (Stx1), components of the Netrin-1 signaling pathway that are also involved in regulating axon and dendrite development. Significantly, developing axons and dendrites of FEZ1-deficient neurons fail to respond to Netrin-1 or Netrin-1 and Sema3A treatment, respectively. Taken together, these findings highlight the importance of FEZ1 as a common effector to integrate guidance signaling pathways with intracellular trafficking to mediate axo-dendrite development during neuronal network formation.
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8
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Chen CY, Lee DS, Choong OK, Chang SK, Hsu T, Nicholson MW, Liu LW, Lin PJ, Ruan SC, Lin SW, Hu CY, Hsieh PCH. Cardiac-specific microRNA-125b deficiency induces perinatal death and cardiac hypertrophy. Sci Rep 2021; 11:2377. [PMID: 33504864 PMCID: PMC7840921 DOI: 10.1038/s41598-021-81700-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 01/05/2021] [Indexed: 01/30/2023] Open
Abstract
MicroRNA-125b, the first microRNA to be identified, is known to promote cardiomyocyte maturation from embryonic stem cells; however, its physiological role remains unclear. To investigate the role of miR-125b in cardiovascular biology, cardiac-specific miR-125b-1 knockout mice were generated. We found that cardiac-specific miR-125b-1 knockout mice displayed half the miR-125b expression of control mice resulting in a 60% perinatal death rate. However, the surviving mice developed hearts with cardiac hypertrophy. The cardiomyocytes in both neonatal and adult mice displayed abnormal mitochondrial morphology. In the deficient neonatal hearts, there was an increase in mitochondrial DNA, but total ATP production was reduced. In addition, both the respiratory complex proteins in mitochondria and mitochondrial transcription machinery were impaired. Mechanistically, using transcriptome and proteome analysis, we found that many proteins involved in fatty acid metabolism were significantly downregulated in miR-125b knockout mice which resulted in reduced fatty acid metabolism. Importantly, many of these proteins are expressed in the mitochondria. We conclude that miR-125b deficiency causes a high mortality rate in neonates and cardiac hypertrophy in adult mice. The dysregulation of fatty acid metabolism may be responsible for the cardiac defect in the miR-125b deficient mice.
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Affiliation(s)
- Chen-Yun Chen
- grid.19188.390000 0004 0546 0241Cardiovascular Division, Institute of Biomedical Science, Academia Sinica, National Taiwan University College of Medicine, 128 Academia Road, Sec. 2, Nankang, Taipei, 115 Taiwan ,grid.37589.300000 0004 0532 3167Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, 320 Taiwan
| | - Desy S. Lee
- grid.19188.390000 0004 0546 0241Cardiovascular Division, Institute of Biomedical Science, Academia Sinica, National Taiwan University College of Medicine, 128 Academia Road, Sec. 2, Nankang, Taipei, 115 Taiwan
| | - Oi Kuan Choong
- grid.19188.390000 0004 0546 0241Cardiovascular Division, Institute of Biomedical Science, Academia Sinica, National Taiwan University College of Medicine, 128 Academia Road, Sec. 2, Nankang, Taipei, 115 Taiwan
| | - Sheng-Kai Chang
- grid.19188.390000 0004 0546 0241Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, 100 Taiwan
| | - Tien Hsu
- grid.37589.300000 0004 0532 3167Department of Biomedical Sciences and Engineering, National Central University, Taoyuan, 320 Taiwan
| | - Martin W. Nicholson
- grid.19188.390000 0004 0546 0241Cardiovascular Division, Institute of Biomedical Science, Academia Sinica, National Taiwan University College of Medicine, 128 Academia Road, Sec. 2, Nankang, Taipei, 115 Taiwan
| | - Li-Wei Liu
- grid.19188.390000 0004 0546 0241Cardiovascular Division, Institute of Biomedical Science, Academia Sinica, National Taiwan University College of Medicine, 128 Academia Road, Sec. 2, Nankang, Taipei, 115 Taiwan
| | - Po-Ju Lin
- grid.19188.390000 0004 0546 0241Cardiovascular Division, Institute of Biomedical Science, Academia Sinica, National Taiwan University College of Medicine, 128 Academia Road, Sec. 2, Nankang, Taipei, 115 Taiwan
| | - Shu-Chian Ruan
- grid.19188.390000 0004 0546 0241Cardiovascular Division, Institute of Biomedical Science, Academia Sinica, National Taiwan University College of Medicine, 128 Academia Road, Sec. 2, Nankang, Taipei, 115 Taiwan
| | - Shu-Wha Lin
- grid.19188.390000 0004 0546 0241Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, 100 Taiwan
| | - Chung-Yi Hu
- grid.19188.390000 0004 0546 0241Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, 100 Taiwan
| | - Patrick C. H. Hsieh
- grid.19188.390000 0004 0546 0241Cardiovascular Division, Institute of Biomedical Science, Academia Sinica, National Taiwan University College of Medicine, 128 Academia Road, Sec. 2, Nankang, Taipei, 115 Taiwan ,grid.19188.390000 0004 0546 0241Institute of Medical Genomics and Proteomics, National Taiwan University College of Medicine, Taipei, 100 Taiwan ,grid.19188.390000 0004 0546 0241Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, 100 Taiwan
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9
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Hou ST. The regulatory and enzymatic functions of CRMPs in neuritogenesis, synaptic plasticity, and gene transcription. Neurochem Int 2020; 139:104795. [PMID: 32652266 DOI: 10.1016/j.neuint.2020.104795] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 06/18/2020] [Accepted: 06/22/2020] [Indexed: 12/13/2022]
Abstract
Collapsin response mediator proteins (CRMPs) are ubiquitously expressed in neurons from worms to humans. A cardinal feature of CRMPs is to mediate growth cone collapse in response to Semaphorin-3A signaling through interactions with cytoskeletal proteins. These are critical regulatory roles that CRMPs play during neuritogenesis and neural network formation. Through post-translational modifications, such as phosphorylation, O-GlcNAcylation, SUMOylation, and proteolytic cleavage, CRMPs participate in synaptic plasticity by modulating NMDA receptors, L- and N-type voltage-gated calcium channels (VGCCs), thus affecting neurotransmitter release. CRMPs also possess histone deacetylase (HDAC) activity, which deacetylates histone H4 during neuronal death. Calcium-dependent proteolytic cleavage of CRMPs results in the truncation of CRMPs, producing a large 54 kD fragment (p54). Translocation of the p54 fragment into the nucleus leads to deacetylation of nuclear histone H4 and de-repression of transcription factor E2F1 expression. Increased expression of E2F1 elevates the expression of genes in cell cycle and death. These new and exciting studies lead to the realization that CRMPs are multifunctional proteins with both regulatory and enzymatic functions. Increasing numbers of studies associate these functions of CRMPs with the development of mental and neurological disorders, such as schizophrenia, Alzheimer's diseases, brain trauma, and stroke. This review focuses on new evidence showing the regulatory and enzymatic functions of CRMPs and highlights recent understandings of CRMPs' roles in neurological diseases.
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Affiliation(s)
- Sheng-Tao Hou
- Brain Research Centre and Department of Biology, Southern University of Science and Technology, 1088 Xueyuan Blvd, Nanshan District, Shenzhen, Guangdong Province, 518055, PR China; Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada.
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10
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Hoffman JL, Faccidomo S, Kim M, Taylor SM, Agoglia AE, May AM, Smith EN, Wong LC, Hodge CW. Alcohol drinking exacerbates neural and behavioral pathology in the 3xTg-AD mouse model of Alzheimer's disease. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2019; 148:169-230. [PMID: 31733664 PMCID: PMC6939615 DOI: 10.1016/bs.irn.2019.10.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder that represents the most common cause of dementia in the United States. Although the link between alcohol use and AD has been studied, preclinical research has potential to elucidate neurobiological mechanisms that underlie this interaction. This study was designed to test the hypothesis that nondependent alcohol drinking exacerbates the onset and magnitude of AD-like neural and behavioral pathology. We first evaluated the impact of voluntary 24-h, two-bottle choice home-cage alcohol drinking on the prefrontal cortex and amygdala neuroproteome in C57BL/6J mice and found a striking association between alcohol drinking and AD-like pathology. Bioinformatics identified the AD-associated proteins MAPT (Tau), amyloid beta precursor protein (APP), and presenilin-1 (PSEN-1) as the main modulators of alcohol-sensitive protein networks that included AD-related proteins that regulate energy metabolism (ATP5D, HK1, AK1, PGAM1, CKB), cytoskeletal development (BASP1, CAP1, DPYSL2 [CRMP2], ALDOA, TUBA1A, CFL2, ACTG1), cellular/oxidative stress (HSPA5, HSPA8, ENO1, ENO2), and DNA regulation (PURA, YWHAZ). To address the impact of alcohol drinking on AD, studies were conducted using 3xTg-AD mice that express human MAPT, APP, and PSEN-1 transgenes and develop AD-like brain and behavioral pathology. 3xTg-AD and wild-type mice consumed alcohol or saccharin for 4 months. Behavioral tests were administered during a 1-month alcohol-free period. Alcohol intake induced AD-like behavioral pathologies in 3xTg-AD mice including impaired spatial memory in the Morris Water Maze, diminished sensorimotor gating as measured by prepulse inhibition, and exacerbated conditioned fear. Multiplex immunoassay conducted on brain lysates showed that alcohol drinking upregulated primary markers of AD pathology in 3xTg-AD mice: Aβ 42/40 ratio in the lateral entorhinal and prefrontal cortex and total Tau expression in the lateral entorhinal cortex, medial prefrontal cortex, and amygdala at 1-month post alcohol exposure. Immunocytochemistry showed that alcohol use upregulated expression of pTau (Ser199/Ser202) in the hippocampus, which is consistent with late-stage AD. According to the NIA-AA Research Framework, these results suggest that alcohol use is associated with Alzheimer's pathology. Results also showed that alcohol use was associated with a general reduction in Akt/mTOR signaling via several phosphoproteins (IR, IRS1, IGF1R, PTEN, ERK, mTOR, p70S6K, RPS6) in multiple brain regions including hippocampus and entorhinal cortex. Dysregulation of Akt/mTOR phosphoproteins suggests alcohol may target this pathway in AD progression. These results suggest that nondependent alcohol drinking increases the onset and magnitude of AD-like neural and behavioral pathology in 3xTg-AD mice.
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Affiliation(s)
- Jessica L Hoffman
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Sara Faccidomo
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Michelle Kim
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Seth M Taylor
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Abigail E Agoglia
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Ashley M May
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Evan N Smith
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - L C Wong
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
| | - Clyde W Hodge
- Department of Psychiatry, Center for Alcohol Studies, School of Medicine, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States.
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11
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McLean FH, Campbell FM, Sergi D, Grant C, Morris AC, Hay EA, MacKenzie A, Mayer CD, Langston RF, Williams LM. Early and reversible changes to the hippocampal proteome in mice on a high-fat diet. Nutr Metab (Lond) 2019; 16:57. [PMID: 31462902 PMCID: PMC6708244 DOI: 10.1186/s12986-019-0387-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 08/16/2019] [Indexed: 12/11/2022] Open
Abstract
Background The rise in global obesity makes it crucial to understand how diet drives obesity-related health conditions, such as premature cognitive decline and Alzheimer's disease (AD). In AD hippocampal-dependent episodic memory is one of the first types of memory to be impaired. Previous studies have shown that in mice fed a high-fat diet (HFD) episodic memory is rapidly but reversibly impaired. Methods In this study we use hippocampal proteomics to investigate the effects of HFD in the hippocampus. Mice were fed either a low-fat diet (LFD) or HFD containing either 10% or 60% (Kcal) from fat for 3 days, 1 week or 2 weeks. One group of mice were fed the HFD for 1 week and then returned to the LFD for a further week. Primary hippocampal cultures were challenged with palmitic acid (PA), the most common long-chain saturated FA in the Western diet, and with the anti-inflammatory, n-3 polyunsaturated FA, docosahexaenoic acid (DHA), or a combination of the two to ascertain effects of these fatty acids on dendritic structure. Results HFD-induced changes occur in hippocampal proteins involved in metabolism, inflammation, cell stress, cell signalling, and the cytoskeleton after 3 days, 1 week and 2 weeks of HFD. Replacement of the HFD after 1 week by a low-fat diet (LFD) for a further week resulted in partial recovery of the hippocampal proteome. Microtubule-associated protein 2 (MAP2), one of the earliest proteins changed, was used to investigate the impact of fatty acids (FAs) on hippocampal neuronal morphology. PA challenge resulted in shorter and less arborised dendrites while DHA had no effect when applied alone but counteracted the effects of PA when FAs were used in combination. Dendritic morphology recovered when PA was removed from the cell culture media. Conclusion This study provides evidence for the rapid and reversible effects of diet on the hippocampal proteome and the impact of PA and DHA on dendritic structure.
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Affiliation(s)
- Fiona H McLean
- 1Division of Neuroscience, University of Dundee, Ninewells Hospital & Medical School, Dundee, DD1 9SY UK.,2Rowett Institute, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD UK
| | - Fiona M Campbell
- 2Rowett Institute, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD UK
| | - Domenico Sergi
- 2Rowett Institute, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD UK
| | - Christine Grant
- 2Rowett Institute, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD UK
| | - Amanda C Morris
- 2Rowett Institute, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD UK
| | - Elizabeth A Hay
- 3Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD UK
| | - Alasdair MacKenzie
- 3Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD UK
| | - Claus D Mayer
- 4Biomathematics and Statistics Scotland, University of Aberdeen, Aberdeen, AB25 2ZD UK
| | - Rosamund F Langston
- 1Division of Neuroscience, University of Dundee, Ninewells Hospital & Medical School, Dundee, DD1 9SY UK
| | - Lynda M Williams
- 2Rowett Institute, University of Aberdeen, Foresterhill, Aberdeen, AB25 2ZD UK
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12
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Ohtani-Kaneko R. Crmp4-KO Mice as an Animal Model for Investigating Certain Phenotypes of Autism Spectrum Disorders. Int J Mol Sci 2019; 20:E2485. [PMID: 31137494 PMCID: PMC6566569 DOI: 10.3390/ijms20102485] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 05/17/2019] [Accepted: 05/18/2019] [Indexed: 12/21/2022] Open
Abstract
Previous research has demonstrated that the collapsin response mediator protein (CRMP) family is involved in the formation of neural networks. A recent whole-exome sequencing study identified a de novo variant (S541Y) of collapsin response mediator protein 4 (CRMP4) in a male patient with autism spectrum disorder (ASD). In addition, Crmp4-knockout (KO) mice show some phenotypes similar to those observed in human patients with ASD. For example, compared with wild-type mice, Crmp4-KO mice exhibit impaired social interaction, abnormal sensory sensitivities, broader distribution of activated (c-Fos expressing) neurons, altered dendritic formation, and aberrant patterns of neural gene expressions, most of which have sex differences. This review summarizes current knowledge regarding the role of CRMP4 during brain development and discusses the possible contribution of CRMP4 deficiencies or abnormalities to the pathogenesis of ASD. Crmp4-KO mice represent an appropriate animal model for investigating the mechanisms underlying some ASD phenotypes, such as impaired social behavior, abnormal sensory sensitivities, and sex-based differences, and other neurodevelopmental disorders associated with sensory processing disorders.
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Affiliation(s)
- Ritsuko Ohtani-Kaneko
- Graduate School of Life Sciences, Toyo University, 1-1-1 Itakura, Oura 374-0193, Japan.
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13
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Miyazaki T, T. Baba T, Mori M, Komori T. Collapsin Response Mediator Protein 1, a Novel Marker Protein for Differentiated Odontoblasts. Acta Histochem Cytochem 2018; 51:185-190. [PMID: 30647493 PMCID: PMC6328366 DOI: 10.1267/ahc.18030] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2018] [Accepted: 09/27/2018] [Indexed: 11/22/2022] Open
Abstract
We previously reported that the terminal differentiation of odontoblasts was inhibited in Runx2 transgenic {Tg(Col1a1-Runx2)} mice under the control of the 2.3-kb Col1a1 promoter. Odontoblasts in Tg(Col1a1-Runx2) mice lose their characteristic long cellular processes, and show marked reductions in the protein levels of markers for odontoblasts, such as dentin sialophosphoprotein, nestin, and microtubule-associated protein tau (Mapt). We herein demonstrated that collapsin response mediator protein 1 (CRMP1), a neuronal phosphoprotein that participates in various aspects of neuronal development, was specifically expressed in the differentiated odontoblasts of wild-type, but not Tg(Col1a1-Runx2) tooth germs by comparing expression profiles in wild-type and Tg(Col1a1-Runx2) mouse molars using microarray and immunohistochemical analyses. CRMP1 expression was detected at a slightly later differentiation stage in odontoblasts than type 1 collagen, nestin, and Mapt expression, which was observed from the onset of dentinogenesis. Among these proteins, CRMP1 was the most specifically localized in odontoblasts in the tooth germ. In erupted molars, odontoblast-specific CRMP1 expression decreased with age. These results indicate that CRMP1 is a novel marker protein for differentiated odontoblasts in mouse tooth germs, and suggest that CRMP1 participates in the morphogenesis of functioning odontoblasts.
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Affiliation(s)
- Toshihiro Miyazaki
- Department of Cell Biology, Unit of Basic Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences
| | - Tomomi T. Baba
- Department of Oral Molecular Biology, Unit of Basic Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences
| | - Masako Mori
- Department of Cell Biology, Unit of Basic Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences
| | - Toshihisa Komori
- Department of Cell Biology, Unit of Basic Medical Sciences, Nagasaki University Graduate School of Biomedical Sciences
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14
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Strawbridge RJ, Ward J, Lyall LM, Tunbridge EM, Cullen B, Graham N, Ferguson A, Johnston KJA, Lyall DM, Mackay D, Cavanagh J, Howard DM, Adams MJ, Deary I, Escott-Price V, O'Donovan M, McIntosh AM, Bailey MES, Pell JP, Harrison PJ, Smith DJ. Genetics of self-reported risk-taking behaviour, trans-ethnic consistency and relevance to brain gene expression. Transl Psychiatry 2018; 8:178. [PMID: 30181555 PMCID: PMC6123450 DOI: 10.1038/s41398-018-0236-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 08/05/2018] [Indexed: 12/25/2022] Open
Abstract
Risk-taking behaviour is an important component of several psychiatric disorders, including attention-deficit hyperactivity disorder, schizophrenia and bipolar disorder. Previously, two genetic loci have been associated with self-reported risk taking and significant genetic overlap with psychiatric disorders was identified within a subsample of UK Biobank. Using the white British participants of the full UK Biobank cohort (n = 83,677 risk takers versus 244,662 controls) for our primary analysis, we conducted a genome-wide association study of self-reported risk-taking behaviour. In secondary analyses, we assessed sex-specific effects, trans-ethnic heterogeneity and genetic overlap with psychiatric traits. We also investigated the impact of risk-taking-associated SNPs on both gene expression and structural brain imaging. We identified 10 independent loci for risk-taking behaviour, of which eight were novel and two replicated previous findings. In addition, we found two further sex-specific risk-taking loci. There were strong positive genetic correlations between risk-taking and attention-deficit hyperactivity disorder, bipolar disorder and schizophrenia. Index genetic variants demonstrated effects generally consistent with the discovery analysis in individuals of non-British White, South Asian, African-Caribbean or mixed ethnicity. Polygenic risk scores comprising alleles associated with increased risk taking were associated with lower white matter integrity. Genotype-specific expression pattern analyses highlighted DPYSL5, CGREF1 and C15orf59 as plausible candidate genes. Overall, our findings substantially advance our understanding of the biology of risk-taking behaviour, including the possibility of sex-specific contributions, and reveal consistency across ethnicities. We further highlight several putative novel candidate genes, which may mediate these genetic effects.
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Affiliation(s)
- Rona J Strawbridge
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK.
- Department of Medicine Solna, Karolinska Institute, Stockholm, Sweden.
| | - Joey Ward
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Laura M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Elizabeth M Tunbridge
- Department of Psychiatry, University of Oxford, Oxford, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Breda Cullen
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Nicholas Graham
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Amy Ferguson
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Keira J A Johnston
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Division of Psychiatry, College of Medicine, University of Edinburgh, Edinburgh, UK
| | - Donald M Lyall
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Daniel Mackay
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Jonathan Cavanagh
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - David M Howard
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, EH10 5HF, UK
| | - Mark J Adams
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, EH10 5HF, UK
| | - Ian Deary
- Department of Psychology, University of Edinburgh, Edinburgh, EH8 9YL, UK
- Centre for Cognitive Ageing and Cognitive Epidemiology, University of Edinburgh, Edinburgh, EH8 9YL, UK
| | | | - Michael O'Donovan
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Cardiff, UK
| | - Andrew M McIntosh
- Division of Psychiatry, University of Edinburgh, Royal Edinburgh Hospital, Edinburgh, EH10 5HF, UK
| | - Mark E S Bailey
- School of Life Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Jill P Pell
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Paul J Harrison
- Department of Psychiatry, University of Oxford, Oxford, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Daniel J Smith
- Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
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15
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Naudet N, Moutal A, Vu HN, Chounlamountri N, Watrin C, Cavagna S, Malleval C, Benetollo C, Bardel C, Dronne MA, Honnorat J, Meissirel C, Besançon R. Transcriptional regulation of CRMP5 controls neurite outgrowth through Sox5. Cell Mol Life Sci 2018; 75:67-79. [PMID: 28864883 PMCID: PMC11105725 DOI: 10.1007/s00018-017-2634-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2016] [Revised: 07/10/2017] [Accepted: 08/07/2017] [Indexed: 12/01/2022]
Abstract
Transcriptional regulation of proteins involved in neuronal polarity is a key process that underlies the ability of neurons to transfer information in the central nervous system. The Collapsin Response Mediator Protein (CRMP) family is best known for its role in neurite outgrowth regulation conducting to neuronal polarity and axonal guidance, including CRMP5 that drives dendrite differentiation. Although CRMP5 is able to control dendritic development, the regulation of its expression remains poorly understood. Here we identify a Sox5 consensus binding sequence in the putative promoter sequence upstream of the CRMP5 gene. By luciferase assays we show that Sox5 increases CRMP5 promoter activity, but not if the putative Sox5 binding site is mutated. We demonstrate that Sox5 can physically bind to the CRMP5 promoter DNA in gel mobility shift and chromatin immunoprecipitation assays. Using a combination of real-time RT-PCR and quantitative immunocytochemistry, we provide further evidence for a Sox5-dependent upregulation of CRMP5 transcription and protein expression in N1E115 cells: a commonly used cell line model for neuronal differentiation. Furthermore, we report that increasing Sox5 levels in this neuronal cell line inhibits neurite outgrowth. This inhibition requires CRMP5 because CRMP5 knockdown prevents the Sox5-dependent effect. We confirm the physiological relevance of the Sox5-CRMP5 pathway in the regulation of neurite outgrowth using mouse primary hippocampal neurons. These findings identify Sox5 as a critical modulator of neurite outgrowth through the selective activation of CRMP5 expression.
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Affiliation(s)
- Nicolas Naudet
- Institut NeuroMyoGène, UMR, CNRS 5310, INSERM U1217, 69000, Lyon, France
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
| | - Aubin Moutal
- Institut NeuroMyoGène, UMR, CNRS 5310, INSERM U1217, 69000, Lyon, France
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
| | - Hong Nhung Vu
- Institut NeuroMyoGène, UMR, CNRS 5310, INSERM U1217, 69000, Lyon, France
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
| | - Naura Chounlamountri
- Institut NeuroMyoGène, UMR, CNRS 5310, INSERM U1217, 69000, Lyon, France
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
| | - Chantal Watrin
- Institut NeuroMyoGène, UMR, CNRS 5310, INSERM U1217, 69000, Lyon, France
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
| | - Sylvie Cavagna
- Centre de Recherche en Neurosciences de Lyon, UMR, CNRS 5292, INSERM U1028, CNRS, UMR5292, 69000, Lyon, France
- Laboratoire de Biométrie et Biologie Evolutive, CNRS, UMR 5558, 69100, Villeurbanne, France
| | - Céline Malleval
- Institut NeuroMyoGène, UMR, CNRS 5310, INSERM U1217, 69000, Lyon, France
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
| | - Claire Benetollo
- Centre de Recherche en Neurosciences de Lyon, UMR, CNRS 5292, INSERM U1028, CNRS, UMR5292, 69000, Lyon, France
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
| | - Claire Bardel
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
- Laboratoire de Biométrie et Biologie Evolutive, CNRS, UMR 5558, 69100, Villeurbanne, France
- Service de Biostatistique, Hospices Civils de Lyon, 69003, Lyon, France
| | - Marie-Aimée Dronne
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
- Laboratoire de Biométrie et Biologie Evolutive, CNRS, UMR 5558, 69100, Villeurbanne, France
| | - Jérôme Honnorat
- Institut NeuroMyoGène, UMR, CNRS 5310, INSERM U1217, 69000, Lyon, France
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
- Service de Neuro-Oncologie, Hospices Civils de Lyon, 69003, Lyon, France
| | - Claire Meissirel
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France
| | - Roger Besançon
- Institut NeuroMyoGène, UMR, CNRS 5310, INSERM U1217, 69000, Lyon, France.
- Université de Lyon, Université Claude Bernard Lyon 1, 69100, Villeurbanne, France.
- Faculté de Médecine RTH Laënnec, Institut NeuroMyoGène, Synatac Team, UMR, CNRS 5310, INSERM U1217, 69008, Lyon, France.
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16
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Zhou J, Liu T, Cui H, Fan R, Zhang C, Peng W, Yang A, Zhu L, Wang Y, Tang T. Xuefu zhuyu decoction improves cognitive impairment in experimental traumatic brain injury via synaptic regulation. Oncotarget 2017; 8:72069-72081. [PMID: 29069769 PMCID: PMC5641112 DOI: 10.18632/oncotarget.18895] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Accepted: 06/12/2017] [Indexed: 11/25/2022] Open
Abstract
An overarching consequence of traumatic brain injury (TBI) is the cognitive impairment. It may hinder individual performance of daily tasks and determine people's subjective well-being. The damage to synaptic plasticity, one of the key mechanisms of cognitive dysfunction, becomes the potential therapeutic strategy of TBI. In this study, we aimed to investigate whether Xuefu Zhuyu Decoction (XFZYD), a traditional Chinese medicine, provided a synaptic regulation to improve cognitive disorder following TBI. Morris water maze and modified neurological severity scores were performed to assess the neurological and cognitive abilities. The PubChem Compound IDs of the major compounds of XFZYD were submitted into BATMAN-TCM, an online bioinformatics analysis tool, to predict the druggable targets related to synaptic function. Furthermore, we validated the prediction through immunohistochemical, RT-PCR and western blot analyses. We found that XFZYD enhanced neuroprotection, simultaneously improved learning and memory performances in controlled cortical impact rats. Bioinformatics analysis revealed that the improvements of XFZYD implied the Long-term potentiation relative proteins including NMDAR1, CaMKII and GAP-43. The further confirmation of molecular biological studies confirmed that XFZYD upregulated the mRNA and protein levels of NMDAR1, CaMKII and GAP-43. Pharmacological synaptic regulation of XFZYD could provide a novel therapeutic strategy for cognitive impairment following TBI.
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Affiliation(s)
- Jing Zhou
- Laboratory of Ethnopharmacology, Institute of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Tao Liu
- Laboratory of Ethnopharmacology, Institute of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, 410008 Changsha, China
- Department of Gerontology, Traditional Chinese Medicine Hospital Affiliate to Xinjiang Medical University, 830000 Urumqi, China
| | - Hanjin Cui
- Laboratory of Ethnopharmacology, Institute of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Rong Fan
- Laboratory of Ethnopharmacology, Institute of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Chunhu Zhang
- Laboratory of Ethnopharmacology, Institute of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Weijun Peng
- Department of Traditional Chinese Medicine, 2nd Xiangya Hospital, Central South University, 410011 Changsha, China
| | - Ali Yang
- Department of Neurology, Henan Province People’ Hospital, 450003 Zhengzhou, China
| | - Lin Zhu
- Laboratory of Ethnopharmacology, Institute of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Yang Wang
- Laboratory of Ethnopharmacology, Institute of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, 410008 Changsha, China
| | - Tao Tang
- Laboratory of Ethnopharmacology, Institute of Integrated Traditional Chinese and Western Medicine, Xiangya Hospital, Central South University, 410008 Changsha, China
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17
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Ganief T, Gqamana P, Garnett S, Hoare J, Stein DJ, Joska J, Soares N, Blackburn JM. Quantitative proteomic analysis of HIV-1 Tat-induced dysregulation in SH-SY5Y neuroblastoma cells. Proteomics 2017; 17. [PMID: 28101920 DOI: 10.1002/pmic.201600236] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 12/23/2016] [Accepted: 01/12/2017] [Indexed: 11/11/2022]
Abstract
Despite affecting up to 70% of HIV-positive patients and being the leading cause of dementia in patients under 40 years, the molecular mechanisms involved in the onset of HIV-associated neurocognitive disorders (HAND) are not well understood. To address this, we performed SILAC-based quantitative proteomic analysis on HIV-Tat treated SH-SY5Y neuroblastoma cells. Isolated protein was fractionated by SDS-PAGE and analyzed by nLC-MS/MS on an Orbitrap Velos. Using MaxQuant, we identified and quantified 3077 unique protein groups, of which 407 were differentially regulated. After applying an additional standard deviation-based cutoff, 29 of these were identified as highly significantly and stably dysregulated. GO term analysis shows dysregulation in both protein translation machinery as well as cytoskeletal regulation that have both been implicated in other dementias. In addition, several key cytoskeletal regulatory proteins such as ARHGEF17, the Rho GTPase, SHROOM3, and CMRP1 are downregulated. Together, these data demonstrate that HIV-Tat can dysregulate neuronal cytoskeletal regulatory proteins that could lead to the major HAND clinical manifestation-synapse loss.
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Affiliation(s)
- Tariq Ganief
- Department of Integrative Biomedical Sciences, University of Cape Town, South Africa
| | - Putuma Gqamana
- Department of Integrative Biomedical Sciences, University of Cape Town, South Africa
| | - Shaun Garnett
- Department of Integrative Biomedical Sciences, University of Cape Town, South Africa
| | - Jackie Hoare
- Department of Psychiatry, University of Cape Town, South Africa
| | - Dan J Stein
- Department of Psychiatry, University of Cape Town, South Africa.,MRC Unit on Anxiety and Stress Disorders, University of Cape Town, South Africa
| | - John Joska
- Department of Psychiatry, University of Cape Town, South Africa
| | - Nelson Soares
- Department of Integrative Biomedical Sciences, University of Cape Town, South Africa
| | - Jonathan M Blackburn
- Department of Integrative Biomedical Sciences, University of Cape Town, South Africa.,Institute of Infectious Disease and Molecular Medicine, University of Cape Town, South Africa
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18
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Proteomic Analysis of Mitochondria-Enriched Fraction Isolated from the Frontal Cortex and Hippocampus of Apolipoprotein E Knockout Mice Treated with Alda-1, an Activator of Mitochondrial Aldehyde Dehydrogenase (ALDH2). Int J Mol Sci 2017; 18:ijms18020435. [PMID: 28218653 PMCID: PMC5343969 DOI: 10.3390/ijms18020435] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 01/25/2017] [Accepted: 01/31/2017] [Indexed: 02/06/2023] Open
Abstract
The role of different genotypes of apolipoprotein E (apoE) in the etiology of Alzheimer’s disease is widely recognized. It has been shown that altered functioning of apoE may promote 4-hydroxynonenal modification of mitochondrial proteins, which may result in mitochondrial dysfunction, aggravation of oxidative stress, and neurodegeneration. Mitochondrial aldehyde dehydrogenase (ALDH2) is an enzyme considered to perform protective function in mitochondria by the detoxification of the end products of lipid peroxidation, such as 4-hydroxynonenal and other reactive aldehydes. The goal of our study was to apply a differential proteomics approach in concert with molecular and morphological techniques to elucidate the changes in the frontal cortex and hippocampus of apolipoprotein E knockout (apoE−/−) mice upon treatment with Alda-1—a small molecular weight activator of ALDH2. Despite the lack of significant morphological changes in the brain of apoE−/− mice as compared to age-matched wild type animals, the proteomic and molecular approach revealed many changes in the expression of genes and proteins, indicating the impairment of energy metabolism, neuroplasticity, and neurogenesis in brains of apoE−/− mice. Importantly, prolonged treatment of apoE−/− mice with Alda-1 led to the beneficial changes in the expression of genes and proteins related to neuroplasticity and mitochondrial function. The pattern of alterations implies mitoprotective action of Alda-1, however, the accurate functional consequences of the revealed changes require further research.
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19
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Nakamura H, Yamashita N, Kimura A, Kimura Y, Hirano H, Makihara H, Kawamoto Y, Jitsuki-Takahashi A, Yonezaki K, Takase K, Miyazaki T, Nakamura F, Tanaka F, Goshima Y. Comprehensive behavioral study and proteomic analyses of CRMP2-deficient mice. Genes Cells 2016; 21:1059-1079. [DOI: 10.1111/gtc.12403] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 07/29/2016] [Indexed: 01/02/2023]
Affiliation(s)
- Haruko Nakamura
- Department of Molecular Pharmacology and Neurobiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
- Department of Neurology and Stroke Medicine; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
| | - Naoya Yamashita
- Department of Molecular Pharmacology and Neurobiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
- JSPS Postdoctoral Fellowship for Research Abroad; Tokyo 102-0083 Japan
| | - Ayuko Kimura
- Advanced Medical Research Center; Yokohama City University; Yokohama 236-0004 Japan
| | - Yayoi Kimura
- Advanced Medical Research Center; Yokohama City University; Yokohama 236-0004 Japan
| | - Hisashi Hirano
- Advanced Medical Research Center; Yokohama City University; Yokohama 236-0004 Japan
| | - Hiroko Makihara
- Department of Molecular Pharmacology and Neurobiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
| | - Yuko Kawamoto
- Department of Molecular Pharmacology and Neurobiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
- Department of Neurology and Stroke Medicine; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
| | - Aoi Jitsuki-Takahashi
- Department of Molecular Pharmacology and Neurobiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
| | - Kumiko Yonezaki
- Department of Anesthesiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
| | - Kenkichi Takase
- Department of Anesthesiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
- Laboratory of Psychology; Jichi Medical University; Shimotsuke 329-0498 Japan
| | - Tomoyuki Miyazaki
- Department of Anesthesiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
- Department of Physiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
| | - Fumio Nakamura
- Department of Molecular Pharmacology and Neurobiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
| | - Fumiaki Tanaka
- Department of Neurology and Stroke Medicine; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
| | - Yoshio Goshima
- Department of Molecular Pharmacology and Neurobiology; Yokohama City University Graduate School of Medicine; Yokohama 236-0004 Japan
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20
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Nagai J, Baba R, Ohshima T. CRMPs Function in Neurons and Glial Cells: Potential Therapeutic Targets for Neurodegenerative Diseases and CNS Injury. Mol Neurobiol 2016; 54:4243-4256. [PMID: 27339876 DOI: 10.1007/s12035-016-0005-1] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Accepted: 06/14/2016] [Indexed: 12/19/2022]
Abstract
Neurodegeneration in the adult mammalian central nervous system (CNS) is fundamentally accelerated by its intrinsic neuronal mechanisms, including its poor regenerative capacity and potent extrinsic inhibitory factors. Thus, the treatment of neurodegenerative diseases faces many obstacles. The degenerative processes, consisting of axonal/dendritic structural disruption, abnormal axonal transport, release of extracellular factors, and inflammation, are often controlled by the cytoskeleton. From this perspective, regulators of the cytoskeleton could potentially be a therapeutic target for neurodegenerative diseases and CNS injury. Collapsin response mediator proteins (CRMPs) are known to regulate the assembly of cytoskeletal proteins in neurons, as well as control axonal growth and neural circuit formation. Recent studies have provided some novel insights into the roles of CRMPs in several inhibitory signaling pathways of neurodegeneration, in addition to its functions in neurological disorders and CNS repair. Here, we summarize the roles of CRMPs in axon regeneration and its emerging functions in non-neuronal cells, especially in inflammatory responses. We also discuss the direct and indirect targeting of CRMPs as a novel therapeutic strategy for neurological diseases.
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Affiliation(s)
- Jun Nagai
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, TWIns, 2-2 Wakamatsu-cho Shinjuku-ku, Tokyo, 162-8480, Japan.,Research Fellow of Japan Society for the Promotion of Science, Tokyo, Japan
| | - Rina Baba
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, TWIns, 2-2 Wakamatsu-cho Shinjuku-ku, Tokyo, 162-8480, Japan
| | - Toshio Ohshima
- Department of Life Science and Medical Bioscience, Graduate School of Advanced Science and Engineering, Waseda University, TWIns, 2-2 Wakamatsu-cho Shinjuku-ku, Tokyo, 162-8480, Japan.
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21
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Stroedicke M, Bounab Y, Strempel N, Klockmeier K, Yigit S, Friedrich RP, Chaurasia G, Li S, Hesse F, Riechers SP, Russ J, Nicoletti C, Boeddrich A, Wiglenda T, Haenig C, Schnoegl S, Fournier D, Graham RK, Hayden MR, Sigrist S, Bates GP, Priller J, Andrade-Navarro MA, Futschik ME, Wanker EE. Systematic interaction network filtering identifies CRMP1 as a novel suppressor of huntingtin misfolding and neurotoxicity. Genome Res 2016; 25:701-13. [PMID: 25908449 PMCID: PMC4417118 DOI: 10.1101/gr.182444.114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Assemblies of huntingtin (HTT) fragments with expanded polyglutamine (polyQ) tracts are a pathological hallmark of Huntington's disease (HD). The molecular mechanisms by which these structures are formed and cause neuronal dysfunction and toxicity are poorly understood. Here, we utilized available gene expression data sets of selected brain regions of HD patients and controls for systematic interaction network filtering in order to predict disease-relevant, brain region-specific HTT interaction partners. Starting from a large protein-protein interaction (PPI) data set, a step-by-step computational filtering strategy facilitated the generation of a focused PPI network that directly or indirectly connects 13 proteins potentially dysregulated in HD with the disease protein HTT. This network enabled the discovery of the neuron-specific protein CRMP1 that targets aggregation-prone, N-terminal HTT fragments and suppresses their spontaneous self-assembly into proteotoxic structures in various models of HD. Experimental validation indicates that our network filtering procedure provides a simple but powerful strategy to identify disease-relevant proteins that influence misfolding and aggregation of polyQ disease proteins.
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Affiliation(s)
| | - Yacine Bounab
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Nadine Strempel
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | | | - Sargon Yigit
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Ralf P Friedrich
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Gautam Chaurasia
- Institute of Theoretical Biology, Humboldt University of Berlin, 10115 Berlin, Germany
| | - Shuang Li
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Franziska Hesse
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | | | - Jenny Russ
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Cecilia Nicoletti
- Department of Neuropsychiatry, Charité-Universitaetsmedizin Berlin, 10117 Berlin, Germany
| | - Annett Boeddrich
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Thomas Wiglenda
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Christian Haenig
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Sigrid Schnoegl
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - David Fournier
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
| | - Rona K Graham
- Center for Molecular Medicine and Therapeutics, Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada
| | - Michael R Hayden
- Center for Molecular Medicine and Therapeutics, Child and Family Research Institute, University of British Columbia, Vancouver, British Columbia V5Z 4H4, Canada
| | - Stephan Sigrist
- Institute of Biology/Genetics, Free University Berlin, 14195 Berlin, Germany
| | - Gillian P Bates
- Department of Medical and Molecular Genetics, King's College London, London SE1 9RT, United Kingdom
| | - Josef Priller
- Department of Neuropsychiatry, Charité-Universitaetsmedizin Berlin, 10117 Berlin, Germany
| | | | - Matthias E Futschik
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany; Centre for Molecular and Structural Biomedicine, Campus de Gambelas, University of Algarve, 8005-139 Faro, Portugal
| | - Erich E Wanker
- Max Delbrueck Center for Molecular Medicine, 13125 Berlin, Germany
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22
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Menon S, Gupton SL. Building Blocks of Functioning Brain: Cytoskeletal Dynamics in Neuronal Development. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2016; 322:183-245. [PMID: 26940519 PMCID: PMC4809367 DOI: 10.1016/bs.ircmb.2015.10.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Neural connectivity requires proper polarization of neurons, guidance to appropriate target locations, and establishment of synaptic connections. From when neurons are born to when they finally reach their synaptic partners, neurons undergo constant rearrangment of the cytoskeleton to achieve appropriate shape and polarity. Of particular importance to neuronal guidance to target locations is the growth cone at the tip of the axon. Growth-cone steering is also dictated by the underlying cytoskeleton. All these changes require spatiotemporal control of the cytoskeletal machinery. This review summarizes the proteins that are involved in modulating the actin and microtubule cytoskeleton during the various stages of neuronal development.
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Affiliation(s)
- Shalini Menon
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, United States of America
| | - Stephanie L Gupton
- Department of Cell Biology and Physiology, University of North Carolina, Chapel Hill, NC, United States of America; Neuroscience Center and Curriculum in Neurobiology, University of North Carolina, Chapel Hill, NC, United States of America; Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, United States of America.
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23
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Kedracka-Krok S, Swiderska B, Jankowska U, Skupien-Rabian B, Solich J, Dziedzicka-Wasylewska M. Stathmin reduction and cytoskeleton rearrangement in rat nucleus accumbens in response to clozapine and risperidone treatment - Comparative proteomic study. Neuroscience 2015; 316:63-81. [PMID: 26708747 DOI: 10.1016/j.neuroscience.2015.12.028] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Revised: 12/02/2015] [Accepted: 12/14/2015] [Indexed: 11/17/2022]
Abstract
The complex network of anatomical connections of the nucleus accumbens (NAc) makes it an interface responsible for the selection and integration of cognitive and affective information to modulate appetitive or aversively motivated behaviour. There is evidence for NAc dysfunction in schizophrenia. NAc also seems to be important for antipsychotic drug action, but the biochemical characteristics of drug-induced alterations within NAc remain incompletely characterized. In this study, a comprehensive proteomic analysis was performed to describe the differences in the mechanisms of action of clozapine (CLO) and risperidone (RIS) in the rat NAc. Both antipsychotics influenced the level of microtubule-regulating proteins, i.e., stathmin, and proteins of the collapsin response mediator protein family (CRMPs), and only CLO affected NAD-dependent protein deacetylase sirtuin-2 and septin 6. Both antipsychotics induced changes in levels of other cytoskeleton-related proteins. CLO exclusively up-regulated proteins involved in neuroprotection, such as glutathione synthetase, heat-shock 70-kDa protein 8 and mitochondrial heat-shock protein 75. RIS tuned cell function by changing the pattern of post-translational modifications of some proteins: it down-regulated the phosphorylated forms of stathmin and dopamine and the cyclic AMP-regulated phosphoprotein (DARPP-32) isoform but up-regulated cyclin-dependent kinase 5 (Cdk5). RIS modulated the level and phosphorylation state of synaptic proteins: synapsin-2, synaptotagmin-1 and adaptor-related protein-2 (AP-2) complex.
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Affiliation(s)
- S Kedracka-Krok
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Department of Structural Biology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland.
| | - B Swiderska
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - U Jankowska
- Department of Structural Biology, Malopolska Centre of Biotechnology, Jagiellonian University, Krakow, Poland
| | - B Skupien-Rabian
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland
| | - J Solich
- Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - M Dziedzicka-Wasylewska
- Department of Physical Biochemistry, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Krakow, Poland; Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
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24
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CRMPs: critical molecules for neurite morphogenesis and neuropsychiatric diseases. Mol Psychiatry 2015; 20:1037-45. [PMID: 26077693 DOI: 10.1038/mp.2015.77] [Citation(s) in RCA: 83] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2014] [Revised: 04/29/2015] [Accepted: 05/08/2015] [Indexed: 12/11/2022]
Abstract
Neuronal polarity and spatial rearrangement of neuronal processes are central to the development of all mature nervous systems. Recent studies have highlighted the dynamic expression of Collapsin-Response-Mediator Proteins (CRMPs) in neuronal dendritic/axonal compartments, described their interaction with cytoskeleton proteins, identified their ability to activate L- and N-type voltage-gated calcium channels (VGCCs) and delineated their crucial role as signaling molecules essential for neuron differentiation and neural network development and maintenance. In addition, evidence obtained from genome-wide/genetic linkage/proteomic/translational approaches revealed that CRMP expression is altered in human pathologies including mental (schizophrenia and mood disorders) and neurological (Alzheimer's, prion encephalopathy, epilepsy and others) disorders. Changes in CRMPs levels have been observed after psychotropic treatments, and disrupting CRMP2 binding to calcium channels blocked neuropathic pain. These observations, altogether with those obtained from genetically modified mice targeting individual CRMPs and RNA interference approaches, pave the way for considering CRMPs as potential early disease markers and modulation of their activity as therapeutic strategy for disorders associated with neurite abnormalities.
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25
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Kadoyama K, Matsuura K, Nakamura-Hirota T, Takano M, Otani M, Matsuyama S. Changes in the expression of collapsin response mediator protein-2 during synaptic plasticity in the mouse hippocampus. J Neurosci Res 2015; 93:1684-92. [DOI: 10.1002/jnr.23626] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Revised: 07/23/2015] [Accepted: 07/23/2015] [Indexed: 11/09/2022]
Affiliation(s)
- Keiichi Kadoyama
- Department of Pharmaceutical Health Care; Faculty of Pharmaceutical Sciences; Himeji Dokkyo University; Himeji Japan
| | - Kenji Matsuura
- Department of Pharmaceutical Health Care; Faculty of Pharmaceutical Sciences; Himeji Dokkyo University; Himeji Japan
| | - Tooru Nakamura-Hirota
- Department of Pharmaceutical Health Care; Faculty of Pharmaceutical Sciences; Himeji Dokkyo University; Himeji Japan
| | - Masaoki Takano
- Department of Life Sciences Pharmacy; School of Pharmaceutical Sciences, Kobe Gakuin University; Kobe Japan
| | - Mieko Otani
- Department of Life Sciences Pharmacy; School of Pharmaceutical Sciences, Kobe Gakuin University; Kobe Japan
| | - Shogo Matsuyama
- Department of Pharmaceutical Health Care; Faculty of Pharmaceutical Sciences; Himeji Dokkyo University; Himeji Japan
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26
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Zhao S, Li G, Chen J. A proteomic analysis of prenatal transfer of microcystin-LR induced neurotoxicity in rat offspring. J Proteomics 2015; 114:197-213. [DOI: 10.1016/j.jprot.2014.11.015] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Revised: 11/14/2014] [Accepted: 11/23/2014] [Indexed: 01/25/2023]
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27
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Lin SH, Chen WC, Lu KH, Chen PJ, Hsieh SC, Pan TM, Chen ST, Sheen LY. Down-regulation of Slit-Robo pathway mediating neuronal cytoskeletal remodeling processes facilitates the antidepressive-like activity of Gastrodia elata Blume. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:10493-503. [PMID: 25197951 DOI: 10.1021/jf503132c] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Nowadays, depression is a serious psychological disorder that causes extreme economic loss and social problems. Previously, we discovered that the water extract of Gastrodia elata Blume (WGE) improved depressive-like behavior by influencing neurotransmitters in rats subjected to the forced swimming test. To elucidate possible mechanisms, in the present study, we performed a proteomics and bioinformatics analysis to identify the related pathways. Western blot-validated results indicated that the core protein network modulated by WGE administration was closely associated with down-regulation of the Slit-Robo pathway, which modulates neuronal cytoskeletal remodeling processes. Although Slit-Robo signaling has been well investigated in neuronal development, its relationship with depression is not fully understood. We provide a potential hint on the mechanism responsible for the antidepressive-like activity of WGE. In conclusion, we suggest that the Slit-Robo pathway and neuronal cytoskeleton remodeling are possibly one of the pathways associated with the antidepressive-like effects of WGE.
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Affiliation(s)
- Shih-Hang Lin
- Institute of Food Science and Technology, National Taiwan University , Taipei, Taiwan
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28
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Imperlini E, Orrù S, Corbo C, Daniele A, Salvatore F. Altered brain protein expression profiles are associated with molecular neurological dysfunction in the PKU mouse model. J Neurochem 2014; 129:1002-12. [PMID: 24548049 PMCID: PMC4286000 DOI: 10.1111/jnc.12683] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2013] [Revised: 01/07/2014] [Accepted: 02/02/2014] [Indexed: 12/14/2022]
Abstract
Phenylketonuria (PKU), if not detected and treated in newborns, causes severe neurological dysfunction and cognitive and behavioral deficiencies. Despite the biochemical characterization of PKU, the molecular mechanisms underlying PKU-associated brain dysfunction remain poorly understood. The aim of this study was to gain insights into the pathogenesis of this neurological damage by analyzing protein expression profiles in brain tissue of Black and Tan BRachyury-PahEnu2 mice (a mouse model of PKU). We compared the cerebral protein expression of homozygous PKU mice with that of their heterozygous counterparts using two-dimensional difference gel electrophoresis analysis, and identified 21 differentially expressed proteins, four of which were over-expressed and 17 under-expressed. An in silico bioinformatic approach indicated that protein under-expression was related to neuronal differentiation and dendritic growth, and to such neurological disorders as progressive motor neuropathy and movement disorders. Moreover, functional annotation analyses showed that some identified proteins were involved in oxidative metabolism. To further investigate the proteins involved in the neurological damage, we validated two of the proteins that were most strikingly under-expressed, namely, Syn2 and Dpysl2, which are involved in synaptic function and neurotransmission. We found that Glu2/3 and NR1 receptor subunits were over-expressed in PKU mouse brain. Our results indicate that differential expression of these proteins may be associated with the processes underlying PKU brain dysfunction, namely, decreased synaptic plasticity and impaired neurotransmission.
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29
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MMP-2 mediates Purkinje cell morphogenesis and spine development in the mouse cerebellum. Brain Struct Funct 2014; 220:1601-17. [PMID: 24652381 DOI: 10.1007/s00429-014-0747-3] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2013] [Accepted: 03/02/2014] [Indexed: 11/27/2022]
Abstract
Matrix metalloproteinase-2 (MMP-2) is a highly studied proteolytic enzyme, involved in many detrimental and beneficial functions throughout the body, and also active in the central nervous system (CNS). MMP-2 is profoundly expressed in the developing cerebellum and was recently reported to modulate granule cell proliferation by affecting cell cycle kinetics in cerebella of postnatal day 3 mouse pups. In this report, a two-dimensional difference gel electrophoresis proteomics study was implemented at this postnatal stage and revealed 16 differentially expressed proteins between MMP-2-deficient (MMP-2(-/-)) and wild-type cerebella. Among those, collapsin response mediator protein 1 (CRMP1) could be identified as the most significant differential protein between the two genotypes. Western blot experiments confirmed this finding and further disclosed a significant increase in phosphorylated CRMP1 expression in MMP-2(-/-) cerebella. Strikingly, subsequent immunohistochemical and microscopic analyses revealed an aberrant Purkinje cell (PC) dendritogenesis, possibly related to upregulated (phospho-) CRMP1 levels in these neonatal MMP-2(-/-) animals. Further, detailed morphometric analyses showed persistent PC morphological changes in MMP-2(-/-) mice, from the neonatal stage until adulthood. These were characterized by a reduced growth of PC somata, reduced dendritic tree sizes, and a decreased dendritic arborization. During development, the observed defects were accompanied by a temporarily disturbed parallel fiber and climbing fiber synaptic input on the PCs, while in adult MMP-2(-/-) animals, an increased PC spine density and reduced spine lengths were noted. The observed PC abnormalities might contribute to the mild defects in motor performance, i.e. balance and coordination, detected in adult MMP-2(-/-) mice. Overall, these findings indicate the importance of MMP-2 in CNS development and dendritogenesis, and highlight the importance of a correct developmental wiring for adult brain morphology and function.
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Yamashita N, Takahashi A, Takao K, Yamamoto T, Kolattukudy P, Miyakawa T, Goshima Y. Mice lacking collapsin response mediator protein 1 manifest hyperactivity, impaired learning and memory, and impaired prepulse inhibition. Front Behav Neurosci 2013; 7:216. [PMID: 24409129 PMCID: PMC3873514 DOI: 10.3389/fnbeh.2013.00216] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2013] [Accepted: 12/16/2013] [Indexed: 11/13/2022] Open
Abstract
Collapsin response mediator protein 1 (CRMP1) is one of the CRMP family members that are involved in various aspects of neuronal development such as axonal guidance and neuronal migration. Here we provide evidence that crmp1 (-/-) mice exhibited behavioral abnormalities related to schizophrenia. The crmp1 (-/-) mice exhibited hyperactivity and/or impaired emotional behavioral phenotype. These mice also exhibited impaired context-dependent memory and long-term memory retention. Furthermore, crmp1 (-/-) mice exhibited decreased prepulse inhibition, and this phenotype was rescued by administration of chlorpromazine, a typical antipsychotic drug. In addition, in vivo microdialysis revealed that the methamphetamine-induced release of dopamine in prefrontal cortex was exaggerated in crmp1 (-/-) mice, suggesting that enhanced mesocortical dopaminergic transmission contributes to their hyperactivity phenotype. These observations suggest that impairment of CRMP1 function may be involved in the pathogenesis of schizophrenia. We propose that crmp1 (-/-) mouse may model endophenotypes present in this neuropsychiatric disorder.
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Affiliation(s)
- Naoya Yamashita
- Department of Molecular Pharmacology and Neurobiology, Yokohama City University Graduate School of Medicine Yokohama, Japan
| | - Aoi Takahashi
- Department of Molecular Pharmacology and Neurobiology, Yokohama City University Graduate School of Medicine Yokohama, Japan
| | - Keizo Takao
- Section of Behavior Patterns, Center for Genetic Analysis of Behavior, National Institute for Physiological Sciences Okazaki, Japan ; Genetic Engineering and Functional Genomics Group, Frontier Technology Center, Graduate School of Medicine, Kyoto University Kyoto, Japan ; Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency Kawaguchi, Japan
| | - Toshifumi Yamamoto
- Laboratory of Molecular Psychopharmacology, Graduate School of Nanobiosciences, Yokohama City University Yokohama, Japan
| | - Pappachan Kolattukudy
- Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida Orlando, FL, USA
| | - Tsuyoshi Miyakawa
- Section of Behavior Patterns, Center for Genetic Analysis of Behavior, National Institute for Physiological Sciences Okazaki, Japan ; Genetic Engineering and Functional Genomics Group, Frontier Technology Center, Graduate School of Medicine, Kyoto University Kyoto, Japan ; Core Research for Evolutional Science and Technology (CREST), Japan Science and Technology Agency Kawaguchi, Japan ; Division of Systems Medical Science, Institute for Comprehensive Medical Science, Fujita Health University Toyoake, Japan
| | - Yoshio Goshima
- Department of Molecular Pharmacology and Neurobiology, Yokohama City University Graduate School of Medicine Yokohama, Japan
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31
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Simforoosh N, Basiri A, Shakhssalim N, Shahram G, Tabibi A, Khosdel A, Ziaee SAM. Warm ischemia is not a risk factor for delayed graft function in a living-donor kidney transplant. EXP CLIN TRANSPLANT 2013; 11:575-6. [PMID: 24344951 DOI: 10.6002/ect.2013.0192r] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Nasser Simforoosh
- Shahid Labbafinejad Hospital, Urology Nephrology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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32
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Feldman P, Khanna R. Challenging the catechism of therapeutics for chronic neuropathic pain: Targeting CaV2.2 interactions with CRMP2 peptides. Neurosci Lett 2013; 557 Pt A:27-36. [PMID: 23831344 PMCID: PMC3849117 DOI: 10.1016/j.neulet.2013.06.057] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 06/24/2013] [Accepted: 06/24/2013] [Indexed: 11/25/2022]
Abstract
Chronic neuropathic pain management is a worldwide concern. Pharmaceutical companies globally have historically targeted ion channels as the therapeutic catechism with many blockbuster successes. Remarkably, no new pain therapeutic has been approved by European or American regulatory agencies over the last decade. This article will provide an overview of an alternative approach to ion channel drug discovery: targeting regulators of ion channels, specifically focusing on voltage-gated calcium channels. We will highlight the discovery of an anti-nociceptive peptide derived from a novel calcium channel interacting partner - the collapsin response mediator protein 2 (CRMP2). In vivo administration of this peptide reduces pain behavior in a number of models of neuropathic pain without affecting sympathetic-associated cardiovascular activity, memory retrieval, sensorimotor function, or depression. A CRMP2-derived peptide analgesic, with restricted access to the CNS, represents a completely novel approach to the treatment of severe pain with an improved safety profile. As peptides now represent one of the fastest growing classes of new drugs, it is expected that peptide targeting of protein interactions within the calcium channel complex may be a paradigm shift in ion channel drug discovery.
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Affiliation(s)
- Polina Feldman
- Sophia Therapeutics LLC, 351 West 10th Street, Indianapolis, IN 46202, USA
| | - Rajesh Khanna
- Sophia Therapeutics LLC, 351 West 10th Street, Indianapolis, IN 46202, USA
- Department of Pharmacology and Toxicology, 635 Barnhill Drive, Indianapolis, IN 46202, USA
- Department of Biochemistry and Molecular Biology, 635 Barnhill Drive, Indianapolis, IN 46202, USA
- Program in Medical Neurosciences, Paul and Carole Stark Neurosciences Research Institute, 950 West Walnut Street, Indianapolis, IN 46202, USA
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33
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Collapsin response mediator protein 3 deacetylates histone H4 to mediate nuclear condensation and neuronal death. Sci Rep 2013; 3:1350. [PMID: 23443259 PMCID: PMC3583001 DOI: 10.1038/srep01350] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2013] [Accepted: 02/12/2013] [Indexed: 12/29/2022] Open
Abstract
CRMP proteins play critical regulatory roles during semaphorin-mediated neurite outgrowth, neuronal differentiation and death. Albeit having a high degree of structure and sequence resemblance to that of liver dihydropyrimidinase, purified rodent brain CRMPs do not hydrolyze dihydropyrimidinase substrates. Here we found that mouse CRMP3 has robust histone H4 deacetylase activity. During excitotoxicity-induced mouse neuronal death, calpain-cleaved, N-terminally truncated CRMP3 undergoes nuclear translocation to cause nuclear condensation through deacetylation of histone H4. CRMP3-mediated deacetylation of H4 leads to de-repression of the E2F1 gene transcription and E2F1-dependent neuronal death. These studies revealed a novel mechanism of CRMP3 in neuronal death. Together with previous well established bodies of literature that inhibition of histone deacetylase activity provides neuroprotection, we envisage that inhibition of CRMP3 may represent a novel therapeutic approach towards excitotoxicity-induced neuronal death.
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34
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Iwakura T, Sakoh M, Tsutiya A, Yamashita N, Ohtani A, Tsuda MC, Ogawa S, Tsukahara S, Nishihara M, Shiga T, Goshima Y, Kato T, Ohtani-Kaneko R. Collapsin response mediator protein 4 affects the number of tyrosine hydroxylase-immunoreactive neurons in the sexually dimorphic nucleus in female mice. Dev Neurobiol 2013; 73:502-17. [PMID: 23420586 DOI: 10.1002/dneu.22076] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2012] [Revised: 12/25/2012] [Accepted: 02/12/2013] [Indexed: 01/04/2023]
Abstract
In the sexually dimorphic anteroventral periventricular nucleus (AVPV) of the hypothalamus, females have a greater number of tyrosine hydroxylase-immunoreactive (TH-ir) and kisspeptin-immunoreactive (kisspeptin-ir) neurons than males. In this study, we used proteomics analysis and gene-deficient mice to identify proteins that regulate the number of TH-ir and kisspeptin-ir neurons in the AVPV. Analysis of protein expressions in the rat AVPV on postnatal day 1 (PD1; the early phase of sex differentiation) using two-dimensional fluorescence difference gel electrophoresis followed by MALDI-TOF-MS identified collapsin response mediator protein 4 (CRMP4) as a protein exhibiting sexually dimorphic expression. Interestingly, this sexually differential expressions of CRMP4 protein and mRNA in the AVPV was not detected on PD6. Prenatal testosterone exposure canceled the sexual difference in the expression of Crmp4 mRNA in the rat AVPV. Next, we used CRMP4-knockout (CRMP4-KO) mice to determine the in vivo function of CRMP4 in the AVPV. Crmp4 knockout did not change the number of kisspeptin-ir neurons in the adult AVPV in either sex. However, the number of TH-ir neurons was increased in the AVPV of adult female CRMP4-KO mice as compared with the adult female wild-type mice. During development, no significant difference in the number of TH-ir neurons was detected between sexes or genotypes on embryonic day 15, but a female-specific increase in TH-ir neurons was observed in CRMP4-KO mice on PD1, when the sex difference was not yet apparent in wild-type mice. These results indicate that CRMP4 regulates the number of TH-ir cell number in the female AVPV.
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Affiliation(s)
- Takashi Iwakura
- Doctoral Program in Kansei, Behavioral and Brain Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki, 305-8577, Japan
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Lu YC, Wu CC, Yang TH, Lin YH, Yu IS, Lin SW, Chang Q, Lin X, Wong JM, Hsu CJ. Differences in the pathogenicity of the p.H723R mutation of the common deafness-associated SLC26A4 gene in humans and mice. PLoS One 2013; 8:e64906. [PMID: 23755160 PMCID: PMC3670936 DOI: 10.1371/journal.pone.0064906] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2013] [Accepted: 04/19/2013] [Indexed: 11/23/2022] Open
Abstract
Mutations in the SLC26A4 gene are a common cause of human hereditary hearing impairment worldwide. Previous studies have demonstrated that different SLC26A4 mutations have different pathogenetic mechanisms. By using a genotype-driven approach, we established a knock-in mouse model (i.e., Slc26a4tm2Dontuh/tm2Dontuh mice) homozygous for the common p.H723R mutation in the East Asian population. To verify the pathogenicity of the p.H723R allele in mice, we further generated mice with compound heterozygous mutations (i.e., Slc26a4tm1Dontuh/tm2Dontuh) by intercrossing Slc26a4+/tm2Dontuh mice with Slc26a4tm1Dontuh/tm1Dontuh mice, which segregated the c.919-2A>G mutation with an abolished Slc26a4 function. Mice were then subjected to audiologic assessments, a battery of vestibular evaluations, inner ear morphological studies, and noise exposure experiments. The results were unexpected; both Slc26a4tm2Dontuh/tm2Dontuh and Slc26a4tm1Dontuh/tm2Dontuh mice showed normal audiovestibular phenotypes and inner ear morphology, and they did not show significantly higher shifts in hearing thresholds after noise exposure than the wild-type mice. The results indicated not only the p.H723R allele was non-pathogenic in mice, but also a single p.H723R allele was sufficient to maintain normal inner ear physiology in heterozygous compound mice. There might be discrepancies in the pathogenicity of specific SLC26A4 mutations in humans and mice; therefore, precautions should be taken when extrapolating the results of animal studies to humans.
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Affiliation(s)
- Ying-Chang Lu
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Chen-Chi Wu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Medical Genetics, National Taiwan University Hospital, Taipei, Taiwan
| | - Ting-Hua Yang
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - Yin-Hung Lin
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
| | - I-Shing Yu
- Transgenic Mouse Models Core (TMMC), Division of Genomic Medicine, Research Center For Medical Excellence, National Taiwan University, Taipei, Taiwan
| | - Shu-Wha Lin
- Transgenic Mouse Models Core (TMMC), Division of Genomic Medicine, Research Center For Medical Excellence, National Taiwan University, Taipei, Taiwan
| | - Qing Chang
- Department of Otolaryngology, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Xi Lin
- Department of Otolaryngology, Emory University School of Medicine, Atlanta, Georgia, United States of America
| | - Jau-Min Wong
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Chuan-Jen Hsu
- Department of Otolaryngology, National Taiwan University Hospital, Taipei, Taiwan
- Department of Otolaryngology, College of Medicine, National Taiwan University, Taipei, Taiwan
- * E-mail:
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Lee NC, Shieh YD, Chien YH, Tzen KY, Yu IS, Chen PW, Hu MH, Hu MK, Muramatsu SI, Ichinose H, Hwu WL. Regulation of the dopaminergic system in a murine model of aromatic l-amino acid decarboxylase deficiency. Neurobiol Dis 2013; 52:177-90. [DOI: 10.1016/j.nbd.2012.12.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2012] [Revised: 12/10/2012] [Accepted: 12/14/2012] [Indexed: 01/22/2023] Open
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Ponnusamy R, Lohkamp B. Insights into the oligomerization of CRMPs: crystal structure of human collapsin response mediator protein 5. J Neurochem 2013; 125:855-68. [PMID: 23373749 DOI: 10.1111/jnc.12188] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/19/2012] [Accepted: 01/07/2013] [Indexed: 11/26/2022]
Abstract
Collapsin response mediator protein-5 (CRMP-5) is the latest identified member of the CRMP cytosolic phosphoprotein family, which is crucial for neuronal development and repair. CRMPs exist as homo- and/or hetero-tetramers in vivo and participate in signaling transduction, cytoskeleton rearrangements, and endocytosis. CRMP-5 antagonizes many of the other CRMPs' functions either by directly interacting with them or by competing for their binding partners. We determined the crystal structures of a full length and a truncated version of human CRMP-5, both of which form a homo-tetramer similar to those observed in CRMP-1 and CRMP-2. However, solution studies indicate that CRMP-5 and CRMP-1 form weaker homo-tetramers compared with CRMP-2, and that divalent cations, Ca(2+) and Mg(2+), destabilize oligomers of CRMP-5 and CRMP-1, but promote CRMP-2 oligomerization. On the basis of comparative analysis of the CRMP-5 crystal structure, we identified residues that are crucial for determining the preference for hetero-oligomer or homo-oligomer formation. We also show that in spite of being the CRMP family member most closely related to dihydropyrimidinase, CRMP-5 does not have any detectable amidohydrolase activity. The presented findings provide new detailed insights into the structure, oligomerization, and regulation of CRMPs.
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Affiliation(s)
- Rajesh Ponnusamy
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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The synaptic proteome in Alzheimer's disease. Alzheimers Dement 2012; 9:499-511. [PMID: 23154051 DOI: 10.1016/j.jalz.2012.04.009] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Revised: 12/28/2011] [Accepted: 04/25/2012] [Indexed: 11/23/2022]
Abstract
BACKGROUND Synaptic dysfunction occurs early in Alzheimer's disease (AD) and is recognized to be a primary pathological target for treatment. Synapse degeneration or dysfunction contributes to clinical signs of dementia through altered neuronal communication; the degree of synaptic loss correlates strongly with cognitive impairment. The molecular mechanisms underlying synaptic degeneration are still unclear, and identifying abnormally expressed synaptic proteins in AD brain will help to elucidate such mechanisms and to identify therapeutic targets that might slow AD progression. METHODS Synaptosomal fractions from human autopsy brain tissue from subjects with AD (n = 6) and without AD (n = 6) were compared using two-dimensional differential in-gel electrophoresis. AD pathology is region specific; human subjects can be highly variable in age, medication, and other factors. To counter these factors, two vulnerable areas (the hippocampus and the temporal cortex) were compared with two relatively spared areas (the motor and occipital cortices) within each group. Proteins exhibiting significant changes in expression were identified (≥20% change, Newman-Keuls P value < .05) using either matrix-assisted laser desorption ionization time-of-flight or electrospray ionisation quadrupole-time of flight mass spectrometry. RESULTS Twenty-six different synaptic proteins exhibited more than twofold differences in expression between AD and normal subjects. These proteins are involved in regulating different cellular functions, including energy metabolism, signal transduction, vesicle transport, structure, and antioxidant activity. CONCLUSION Comparative proteome analysis uncovered markers of pathogenic mechanisms involved in synaptic dysfunction.
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Teo L, Homman-Ludiye J, Rodger J, Bourne JA. Discrete ephrin-B1 expression by specific layers of the primate retinogeniculostriate system continues throughout postnatal and adult life. J Comp Neurol 2012; 520:2941-56. [PMID: 22778007 DOI: 10.1002/cne.23077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The molecular guidance cue ephrin-B1 has traditionally been associated with the early development of the visual system, encompassing retinocollicular mapping as well as development and maturation of synapses. Although little is known about its role in the visual system during the postnatal period and in adulthood, recent studies have demonstrated the expression of ephrin-B1 in the adult mouse brain, indicating a sustained role beyond early development. Therefore, we explored the spatiotemporal expression of ephrin-B1 in the postnatal and adult nonhuman primate visual system and demonstrated that a modulated expression continued following birth into adulthood in the lateral geniculate nucleus (LGN) and primary visual cortex (V1, striate cortex). This occurred in the layers involved in bidirectional geniculostriate communication: layers 3Bβ, 4, and 6 of V1 and the parvocellular (P) and magnocellular (M) layers of the LGN. Furthermore, discrete gradients between the ipsi- and contralateral inputs of the P and M layers of the LGN evolved between 1 month following birth and the start of the critical period (3 months), and continued into adulthood. We also detected the postsynaptic expression of ephrin-B1 by excitatory cells in adult LGN and V1 and a subset of interneurons in adult V1, suggestive of a more global rather than subtype-specific role. Together these results suggest a possible role for ephrin-B1 in the maturation of the primate retinogeniculostriate pathway throughout postnatal life, extending into adulthood.
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Affiliation(s)
- Leon Teo
- Australian Regenerative Medicine Institute, Monash University Clayton, Victoria, 3800, Australia
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Aberrant expression of collapsin response mediator proteins‐1, ‐2 and ‐5 in the brain of intrauterine growth restricted rats. Int J Dev Neurosci 2012; 31:53-60. [DOI: 10.1016/j.ijdevneu.2012.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2012] [Revised: 09/15/2012] [Accepted: 10/08/2012] [Indexed: 12/29/2022] Open
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Gardiner J. Insights into plant consciousness from neuroscience, physics and mathematics: a role for quasicrystals? PLANT SIGNALING & BEHAVIOR 2012; 7:1049-1055. [PMID: 22899055 PMCID: PMC3489624 DOI: 10.4161/psb.21325] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
There is considerable debate over whether plants are conscious and this, indeed, is an important question. Here I look at developments in neuroscience, physics and mathematics that may impact on this question. Two major concomitants of consciousness in animals are microtubule function and electrical gamma wave synchrony. Both these factors may also play a role in plant consciousness. I show that plants possess aperiodic quasicrystal structures composed of ribosomes that may enable quantum computing, which has been suggested to lie at the core of animal consciousness. Finally I look at whether a microtubule fractal suggests that electric current plays a part in conventional neurocomputing processes in plants.
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Affiliation(s)
- John Gardiner
- The School of Biological Sciences; The University of Sydney; Sydney, Australia.
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Higurashi M, Iketani M, Takei K, Yamashita N, Aoki R, Kawahara N, Goshima Y. Localized role of CRMP1 and CRMP2 in neurite outgrowth and growth cone steering. Dev Neurobiol 2012; 72:1528-40. [PMID: 22378692 DOI: 10.1002/dneu.22017] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 02/22/2012] [Accepted: 02/23/2012] [Indexed: 11/10/2022]
Abstract
Collapsin response mediator protein 1 (CRMP1) and CRMP2 have been known as mediators of extracellular guidance cues such as semaphorin 3A and contribute to cytoskeletal reorganization in the axonal pathfinding process. To date, how CRMP1 and CRMP2 focally regulate axonal pathfinding in the growth cone has not been elucidated. To delineate the local functions of these CRMPs, we carried out microscale-chromophore-assisted light inactivation (micro-CALI), which enables investigation of localized molecular functions with highly spatial and temporal resolutions. Inactivation of either CRMP1 or CRMP2 in the neurite shaft led to arrested neurite outgrowth. Micro-CALI of CRMP2 in the central domain of the growth cones consistently arrested neurite outgrowth, whereas micro-CALI of CRMP1 in the same region caused significant lamellipodial retraction, followed by retardation of neurite outgrowth. Focal inactivation of CRMP1 in its half region of the growth cone resulted in the growth cone turning away from the irradiated site. Conversely, focal inactivation of CRMP2 resulted in the growth cone turning toward the irradiated site. These findings suggest different functions for CRMP1 and CRMP2 in growth cone behavior and neurite outgrowth.
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Affiliation(s)
- Masakazu Higurashi
- Department of Molecular Pharmacology and Neurobiology, Yokohama City University Graduate School of Medicine, Japan
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Lechner M, Höhn V, Brauner B, Dunger I, Fobo G, Frishman G, Montrone C, Kastenmüller G, Waegele B, Ruepp A. CIDeR: multifactorial interaction networks in human diseases. Genome Biol 2012; 13:R62. [PMID: 22809392 PMCID: PMC3491383 DOI: 10.1186/gb-2012-13-7-r62] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 07/18/2012] [Indexed: 12/12/2022] Open
Abstract
The pathobiology of common diseases is influenced by heterogeneous factors interacting in complex networks. CIDeR http://mips.helmholtz-muenchen.de/cider/ is a publicly available, manually curated, integrative database of metabolic and neurological disorders. The resource provides structured information on 18,813 experimentally validated interactions between molecules, bioprocesses and environmental factors extracted from the scientific literature. Systematic annotation and interactive graphical representation of disease networks make CIDeR a versatile knowledge base for biologists, analysis of large-scale data and systems biology approaches.
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Santucci D, Kawano F, Ohira T, Terada M, Nakai N, Francia N, Alleva E, Aloe L, Ochiai T, Cancedda R, Goto K, Ohira Y. Evaluation of gene, protein and neurotrophin expression in the brain of mice exposed to space environment for 91 days. PLoS One 2012; 7:e40112. [PMID: 22808101 PMCID: PMC3392276 DOI: 10.1371/journal.pone.0040112] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2012] [Accepted: 05/31/2012] [Indexed: 11/22/2022] Open
Abstract
Effects of 3-month exposure to microgravity environment on the expression of genes and proteins in mouse brain were studied. Moreover, responses of neurobiological parameters, nerve growth factor (NGF) and brain derived neurotrophic factor (BDNF), were also evaluated in the cerebellum, hippocampus, cortex, and adrenal glands. Spaceflight-related changes in gene and protein expression were observed. Biological processes of the up-regulated genes were related to the immune response, metabolic process, and/or inflammatory response. Changes of cellular components involving in microsome and vesicular fraction were also noted. Molecular function categories were related to various enzyme activities. The biological processes in the down-regulated genes were related to various metabolic and catabolic processes. Cellular components were related to cytoplasm and mitochondrion. The down-regulated molecular functions were related to catalytic and oxidoreductase activities. Up-regulation of 28 proteins was seen following spaceflight vs. those in ground control. These proteins were related to mitochondrial metabolism, synthesis and hydrolysis of ATP, calcium/calmodulin metabolism, nervous system, and transport of proteins and/or amino acids. Down-regulated proteins were related to mitochondrial metabolism. Expression of NGF in hippocampus, cortex, and adrenal gland of wild type animal tended to decrease following spaceflight. As for pleiotrophin transgenic mice, spaceflight-related reduction of NGF occured only in adrenal gland. Consistent trends between various portions of brain and adrenal gland were not observed in the responses of BDNF to spaceflight. Although exposure to real microgravity influenced the expression of a number of genes and proteins in the brain that have been shown to be involved in a wide spectrum of biological function, it is still unclear how the functional properties of brain were influenced by 3-month exposure to microgravity.
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Affiliation(s)
- Daniela Santucci
- Behavioural Neuroscience Section, Cellular Biology and Neuroscience Department, Istituto Superiore di Sanità, Rome, Italy
| | | | - Takashi Ohira
- Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
| | | | - Naoya Nakai
- Graduate School of Medicine, Osaka University, Osaka, Japan
| | - Nadia Francia
- Behavioural Neuroscience Section, Cellular Biology and Neuroscience Department, Istituto Superiore di Sanità, Rome, Italy
| | - Enrico Alleva
- Behavioural Neuroscience Section, Cellular Biology and Neuroscience Department, Istituto Superiore di Sanità, Rome, Italy
| | - Luigi Aloe
- Institute of Neurobiology and Molecular Medicine, CNR, European Brain Research Institute, Rome, Italy
| | | | | | - Katsumasa Goto
- Graduate School of Health Sciences, Toyohashi SOZO University, Aichi, Japan
| | - Yoshinobu Ohira
- Graduate School of Medicine, Osaka University, Osaka, Japan
- Graduate School of Frontier Biosciences, Osaka University, Osaka, Japan
- * E-mail:
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Chen CY, Tsai MS, Lin CY, Yu IS, Chen YT, Lin SR, Juan LW, Chen YT, Hsu HM, Lee LJ, Lin SW. Rescue of the genetically engineered Cul4b mutant mouse as a potential model for human X-linked mental retardation. Hum Mol Genet 2012; 21:4270-85. [PMID: 22763239 DOI: 10.1093/hmg/dds261] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Mutation in CUL4B, which encodes a scaffold protein of the E3 ubiquitin ligase complex, has been found in patients with X-linked mental retardation (XLMR). However, early deletion of Cul4b in mice causes prenatal lethality, which has frustrated attempts to characterize the phenotypes in vivo. In this report, we successfully rescued Cul4b mutant mice by crossing female mice in which exons 4-5 of Cul4b were flanked by loxP sequences with Sox2-Cre male mice. In Cul4b-deficient (Cul4b(Δ)/Y) mice, no CUL4B protein was detected in any of the major organs, including the brain. In the hippocampus, the levels of CUL4A, CUL4B substrates (TOP1, β-catenin, cyclin E and WDR5) and neuronal markers (MAP2, tau-1, GAP-43, PSD95 and syn-1) were not sensitive to Cul4b deletion, whereas the number of parvalbumin (PV)-positive GABAergic interneurons was decreased in Cul4b(Δ)/Y mice, especially in the dentate gyrus (DG). Some dendritic features, including the complexity, diameter and spine density in the CA1 and DG hippocampal neurons, were also affected by Cul4b deletion. Together, the decrease in the number of PV-positive neurons and altered dendritic properties in Cul4b(Δ)/Y mice imply a reduction in inhibitory regulation and dendritic integration in the hippocampal neural circuit, which lead to increased epileptic susceptibility and spatial learning deficits. Our results identify Cul4b(Δ)/Y mice as a potential model for the non-syndromic model of XLMR that replicates the CUL4B-associated MR and is valuable for the development of a therapeutic strategy for treating MR.
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Affiliation(s)
- Chun-Yu Chen
- Department of Clinical Laboratory Sciences and Medical Biotechnology, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei 100, Taiwan
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Divergent functions through alternative splicing: the Drosophila CRMP gene in pyrimidine metabolism, brain, and behavior. Genetics 2012; 191:1227-38. [PMID: 22649077 DOI: 10.1534/genetics.112.141101] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
DHP and CRMP proteins comprise a family of structurally similar proteins that perform divergent functions, DHP in pyrimidine catabolism in most organisms and CRMP in neuronal dynamics in animals. In vertebrates, one DHP and five CRMP proteins are products of six genes; however, Drosophila melanogaster has a single CRMP gene that encodes one DHP and one CRMP protein through tissue-specific, alternative splicing of a pair of paralogous exons. The proteins derived from the fly gene are identical over 90% of their lengths, suggesting that unique, novel functions of these proteins derive from the segment corresponding to the paralogous exons. Functional homologies of the Drosophila and mammalian CRMP proteins are revealed by several types of evidence. Loss-of-function CRMP mutation modifies both Ras and Rac misexpression phenotypes during fly eye development in a manner that is consistent with the roles of CRMP in Ras and Rac signaling pathways in mammalian neurons. In both mice and flies, CRMP mutation impairs learning and memory. CRMP mutant flies are defective in circadian activity rhythm. Thus, DHP and CRMP proteins are derived by different processes in flies (tissue-specific, alternative splicing of paralogous exons of a single gene) and vertebrates (tissue-specific expression of different genes), indicating that diverse genetic mechanisms have mediated the evolution of this protein family in animals.
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The Collapsin Response Mediator Protein 5 Onconeural Protein Is Expressed in Schwann Cells Under Axonal Signals and Regulates Axon—Schwann Cell Interactions. J Neuropathol Exp Neurol 2012; 71:298-311. [DOI: 10.1097/nen.0b013e31824d1df2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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48
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Down-Regulation of CRMP-1 in Patients with Epilepsy and a Rat Model. Neurochem Res 2012; 37:1381-91. [DOI: 10.1007/s11064-012-0712-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2011] [Accepted: 01/19/2012] [Indexed: 12/12/2022]
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Abstract
Dock3, a new member of the guanine nucleotide exchange factors, causes cellular morphological changes by activating the small GTPase Rac1. Overexpression of Dock3 in neural cells promotes axonal outgrowth downstream of brain-derived neurotrophic factor (BDNF) signaling. We previously showed that Dock3 forms a complex with Fyn and WASP (Wiskott-Aldrich syndrome protein) family verprolin-homologous (WAVE) proteins at the plasma membrane, and subsequent Rac1 activation promotes actin polymerization. Here we show that Dock3 binds to and inactivates glycogen synthase kinase-3β (GSK-3β) at the plasma membrane, thereby increasing the nonphosphorylated active form of collapsin response mediator protein-2 (CRMP-2), which promotes axon branching and microtubule assembly. Exogenously applied BDNF induced the phosphorylation of GSK-3β and dephosphorylation of CRMP-2 in hippocampal neurons. Moreover, increased phosphorylation of GSK-3β was detected in the regenerating axons of transgenic mice overexpressing Dock3 after optic nerve injury. These results suggest that Dock3 plays important roles downstream of BDNF signaling in the CNS, where it regulates cell polarity and promotes axonal outgrowth by stimulating dual pathways: actin polymerization and microtubule assembly.
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Collapsin response mediator proteins regulate neuronal development and plasticity by switching their phosphorylation status. Mol Neurobiol 2012; 45:234-46. [PMID: 22351471 DOI: 10.1007/s12035-012-8242-4] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2011] [Accepted: 01/29/2012] [Indexed: 12/21/2022]
Abstract
Collapsin response mediator protein (CRMP) was originally identified as a molecule involved in semaphorin3A signaling. CRMPs are now known to consist of five homologous cytosolic proteins, CRMP1-5. All of them are phosphorylated and highly expressed in the developing and adult nervous system. In vitro experiments have clearly demonstrated that CRMPs play important roles in neuronal development and maturation through the regulation of their phosphorylation. Several recent knockout mice studies have revealed in vivo roles of CRMPs in neuronal migration, neuronal network formation, synapse formation, synaptic plasticity, and neuronal diseases. Dynamic spatiotemporal regulation of phosphorylation status of CRMPs is involved in many aspects of neuronal development.
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