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Wang S, He Q, Qu Y, Yin W, Zhao R, Wang X, Yang Y, Guo ZN. Emerging strategies for nerve repair and regeneration in ischemic stroke: neural stem cell therapy. Neural Regen Res 2024; 19:2430-2443. [PMID: 38526280 PMCID: PMC11090435 DOI: 10.4103/1673-5374.391313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 09/26/2023] [Accepted: 11/10/2023] [Indexed: 03/26/2024] Open
Abstract
Ischemic stroke is a major cause of mortality and disability worldwide, with limited treatment options available in clinical practice. The emergence of stem cell therapy has provided new hope to the field of stroke treatment via the restoration of brain neuron function. Exogenous neural stem cells are beneficial not only in cell replacement but also through the bystander effect. Neural stem cells regulate multiple physiological responses, including nerve repair, endogenous regeneration, immune function, and blood-brain barrier permeability, through the secretion of bioactive substances, including extracellular vesicles/exosomes. However, due to the complex microenvironment of ischemic cerebrovascular events and the low survival rate of neural stem cells following transplantation, limitations in the treatment effect remain unresolved. In this paper, we provide a detailed summary of the potential mechanisms of neural stem cell therapy for the treatment of ischemic stroke, review current neural stem cell therapeutic strategies and clinical trial results, and summarize the latest advancements in neural stem cell engineering to improve the survival rate of neural stem cells. We hope that this review could help provide insight into the therapeutic potential of neural stem cells and guide future scientific endeavors on neural stem cells.
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Affiliation(s)
- Siji Wang
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Qianyan He
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Yang Qu
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Wenjing Yin
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Ruoyu Zhao
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Xuyutian Wang
- Department of Breast Surgery, General Surgery Center, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Yi Yang
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
- Neuroscience Research Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
| | - Zhen-Ni Guo
- Stroke Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
- Neuroscience Research Center, Department of Neurology, the First Hospital of Jilin University, Changchun, Jilin Province, China
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Jiang Y, Hu L, Wang B, Zhang B, Shao M, Meng L, Xu Y, Chen R, Li M, Du C. Disrupting PIAS3-mediated SUMOylation of MLK3 ameliorates poststroke neuronal damage and deficits in cognitive and sensorimotor behaviors. Cell Mol Life Sci 2024; 81:119. [PMID: 38456949 PMCID: PMC10924033 DOI: 10.1007/s00018-024-05166-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 01/25/2024] [Accepted: 02/03/2024] [Indexed: 03/09/2024]
Abstract
Activated small ubiquitin-like modifiers (SUMOs) have been implicated in neuropathological processes following ischemic stroke. However, the target proteins of SUMOylation and their contribution to neuronal injury remain to be elucidated. MLK3 (mixed-lineage kinase 3), a member of the mitogen-activated protein kinase kinase kinase (MAPKKK) family, is a critical regulator of neuronal lesions following cerebral ischemia. Here, we found that SUMOylation of MLK3 increases in both global and focal ischemic rodent models and primary neuronal models of oxygen and glucose deprivation (OGD). SUMO1 conjugation at the Lys401 site of MLK3 promoted its activation, stimulated its downstream p38/c-Jun N-terminal kinase (JNK) cascades, and led to cell apoptosis. The interaction of MLK3 with PIAS3, a SUMO ligase, was elevated following ischemia and reperfusion. The PINIT domain of PIAS3 was involved in direct interactions with MLK3. Overexpression of the PINIT domain of PIAS3 disrupted the MLK3-PIAS3 interaction, inhibited SUMOylation of MLK3, suppressed downstream signaling, and reduced cell apoptosis and neurite damage. In rodent ischemic models, the overexpression of the PINIT domain reduced brain lesions and alleviated deficits in learning, memory, and sensorimotor functions. Our findings demonstrate that brain ischemia-induced MLK3 SUMOylation by PIAS3 is a potential target against poststroke neuronal lesions and behavioral impairments.
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Affiliation(s)
- Yu Jiang
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Lulu Hu
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Baixue Wang
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Bingge Zhang
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Mengwen Shao
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Li Meng
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Yan Xu
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Rourou Chen
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China
| | - Meng Li
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
| | - Caiping Du
- Research Center for Biochemistry and Molecular Biology, Jiangsu Key Laboratory of Brain Disease Bioinformation, Xuzhou Medical University, Xuzhou, 221004, Jiangsu, China.
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Ingelson-Filpula WA, Storey KB. Hibernation-Induced microRNA Expression Promotes Signaling Pathways and Cell Cycle Dysregulation in Ictidomys tridecemlineatus Cardiac Tissue. Metabolites 2023; 13:1096. [PMID: 37887421 PMCID: PMC10608741 DOI: 10.3390/metabo13101096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 10/05/2023] [Accepted: 10/16/2023] [Indexed: 10/28/2023] Open
Abstract
The thirteen-lined ground squirrel Ictidomys tridecemlineatus is a rodent that lives throughout the United States and Canada and uses metabolic rate depression to facilitate circannual hibernation which helps it survive the winter. Metabolic rate depression is the reorganization of cellular physiology and molecular biology to facilitate a global downregulation of nonessential genes and processes, which conserves endogenous fuel resources and prevents the buildup of waste byproducts. Facilitating metabolic rate depression requires a complex interplay of regulatory approaches, including post-transcriptional modes such as microRNA. MicroRNA are short, single-stranded RNA species that bind to mRNA transcripts and target them for degradation or translational suppression. Using next-generation sequencing, we analyzed euthermic vs. hibernating cardiac tissue in I. tridecemlineatus to predict seven miRNAs (let-7e-5p, miR-122-5p, miR-2355-3p, miR-6715b-3p, miR-378i, miR-9851-3p, and miR-454-3p) that may be differentially regulated during hibernation. Gene ontology and KEGG pathway analysis suggested that these miRNAs cause a strong activation of ErbB2 signaling which causes downstream effects, including the activation of MAPK and PI3K/Akt signaling and concurrent decreases in p53 signaling and cell cycle-related processes. Taken together, these results predict critical miRNAs that may change during hibernation in the hearts of I. tridecemlineatus and identify key signaling pathways that warrant further study in this species.
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Affiliation(s)
| | - Kenneth B. Storey
- Department of Biology, Carleton University, 1125 Colonel By Drive, Ottawa, ON K1S 5B6, Canada;
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Karandikar P, Gerstl JVE, Kappel AD, Won SY, Dubinski D, Garcia-Segura ME, Gessler FA, See AP, Peruzzotti-Jametti L, Bernstock JD. SUMOtherapeutics for Ischemic Stroke. Pharmaceuticals (Basel) 2023; 16:ph16050673. [PMID: 37242456 DOI: 10.3390/ph16050673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/25/2023] [Accepted: 04/27/2023] [Indexed: 05/28/2023] Open
Abstract
The small, ubiquitin-like modifier (SUMO) is a post-translational modifier with a profound influence on several key biological processes, including the mammalian stress response. Of particular interest are its neuroprotective effects, first recognized in the 13-lined ground squirrel (Ictidomys tridecemlineatus), in the context of hibernation torpor. Although the full scope of the SUMO pathway is yet to be elucidated, observations of its importance in managing neuronal responses to ischemia, maintaining ion gradients, and the preconditioning of neural stem cells make it a promising therapeutic target for acute cerebral ischemia. Recent advances in high-throughput screening have enabled the identification of small molecules that can upregulate SUMOylation, some of which have been validated in pertinent preclinical models of cerebral ischemia. Accordingly, the present review aims to summarize current knowledge and highlight the translational potential of the SUMOylation pathway in brain ischemia.
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Affiliation(s)
- Paramesh Karandikar
- T. H. Chan School of Medicine, University of Massachusetts, Worcester, MA 01655, USA
| | - Jakob V E Gerstl
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA
| | - Ari D Kappel
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA
- Department of Neurosurgery, Boston Children's Hospital, Boston, MA 02215, USA
| | - Sae-Yeon Won
- Department of Neurosurgery, University Medicine Rostock, 18057 Rostock, Germany
| | - Daniel Dubinski
- Department of Neurosurgery, University Medicine Rostock, 18057 Rostock, Germany
| | - Monica Emili Garcia-Segura
- Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0QQ, UK
- NIHR Biomedical Research Centre, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Florian A Gessler
- Department of Neurosurgery, University Medicine Rostock, 18057 Rostock, Germany
| | - Alfred Pokmeng See
- Department of Neurosurgery, Boston Children's Hospital, Boston, MA 02215, USA
| | - Luca Peruzzotti-Jametti
- Department of Clinical Neurosciences, University of Cambridge, Cambridge CB2 0QQ, UK
- NIHR Biomedical Research Centre, University of Cambridge, Cambridge CB2 0QQ, UK
| | - Joshua D Bernstock
- Department of Neurosurgery, Brigham and Women's Hospital, Harvard Medical School, Boston, MA 02215, USA
- Department of Neurosurgery, University Medicine Rostock, 18057 Rostock, Germany
- Koch Institute for Integrated Cancer Research, MIT, Cambridge, MA 02142, USA
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Cai H, Ma X, Lu D, Chen L, Bian X, Zhang N, Tang W, Liu X, Li Z. Mild Hypothermia Promotes Ischemic Tolerance and Survival of Neural Stem Cell Grafts by Enhancing Global SUMOylation. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2022; 2022:6503504. [PMID: 35669854 PMCID: PMC9166982 DOI: 10.1155/2022/6503504] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/07/2022] [Accepted: 04/18/2022] [Indexed: 11/17/2022]
Abstract
Cerebral infarct penumbra due to hypoxia and toxin accumulation is not conducive to the transplantation of neural stem cells (NSCs), although mild hypothermia can improve the local microenvironment of the ischemic penumbra and exert neuroprotective effects. However, insufficient understanding of the molecular mechanism by which mild hypothermia protects the brain limits widespread clinical application. This study evaluated the molecular mechanism of mild hypothermia-induced brain protection from the perspective of global protein small ubiquitin-like modifier (SUMO) modification, with the aim of improving NSC transplant survival rates in the penumbra to enhance neurological function. NSCs from neonatal rats were extracted to detect the effects of hypoxia and mild hypothermia on SUMOylation modification levels, cell stemness, and hypoxia-induced injury. Overexpression and knockdown of UBC9 in NSCs were used to evaluate their ability to maintain stemness and withstand hypoxic injury. Finally, a rat middle cerebral artery occlusion (MCAO) model was used to verify the effect of mild hypothermia treatment and UBC9 overexpression on neural function of NSCs following penumbra transplantation in rats. Results showed that hypoxia and mild hypothermia promoted both the SUMOylation modification and maintenance of NSC stemness. Overexpression of UBC9 enhanced the abilities of NSCs to maintain stemness and resist hypoxic injury, while UBC9 knockdown had the opposite effect. Following transplantation into the ischemic penumbra of MCAO model rats, mild hypothermia and Ubc9-overexpressing NSCs significantly reduced cerebral infarct areas and improved neurological function. In conclusion, this study demonstrated that global protein SUMOylation is an important molecular mechanism for NSCs to tolerate hypoxia, and mild hypothermia can further increase the degree of global SUMOylation to enhance the hypoxia tolerance of NSCs, which increases their survival during transplantation in situ and ability to perform nerve repair in the penumbra of cerebral infarction.
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Affiliation(s)
- Heng Cai
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Xiaofang Ma
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin 300450, China
- Tianjin Key Laboratory of Epigenetics for Organ Development of Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin 300450, China
| | - Dading Lu
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Liangyu Chen
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Xiyun Bian
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin 300450, China
- Tianjin Key Laboratory of Epigenetics for Organ Development of Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin 300450, China
| | - Nan Zhang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Wei Tang
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
| | - Xiaozhi Liu
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin 300450, China
- Tianjin Key Laboratory of Epigenetics for Organ Development of Preterm Infants, The Fifth Central Hospital of Tianjin, Tianjin 300450, China
| | - Zhiqing Li
- Department of Neurosurgery, Shengjing Hospital of China Medical University, Shenyang 110004, China
- Liaoning Clinical Medical Research Center in Nervous System Disease, Shenyang 110004, China
- Key Laboratory of Neuro-oncology in Liaoning Province, Shenyang 110004, China
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Fuertes M, Elguero B, Gonilski-Pacin D, Herbstein F, Rosmino J, Ciancio del Giudice N, Fiz M, Falcucci L, Arzt E. Impact of RSUME Actions on Biomolecular Modifications in Physio-Pathological Processes. Front Endocrinol (Lausanne) 2022; 13:864780. [PMID: 35528020 PMCID: PMC9068994 DOI: 10.3389/fendo.2022.864780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 03/11/2022] [Indexed: 12/03/2022] Open
Abstract
The small RWD domain-containing protein called RSUME or RWDD3 was cloned from pituitary tumor cells with increasing tumorigenic and angiogenic proficiency. RSUME expression is induced under hypoxia or heat shock and is upregulated, at several pathophysiological stages, in tissues like pituitary, kidney, heart, pancreas, or adrenal gland. To date, several factors with essential roles in endocrine-related cancer appear to be modulated by RWDD3. RSUME regulates, through its post-translational (PTM) modification, pituitary tumor transforming gene (PTTG) protein stability in pituitary tumors. Interestingly, in these tumors, another PTM, the regulation of EGFR levels by USP8, plays a pathogenic role. Furthermore, RSUME suppresses ubiquitin conjugation to hypoxia-inducible factor (HIF) by blocking VHL E3-ubiquitin ligase activity, contributing to the development of von Hippel-Lindau disease. RSUME enhances protein SUMOylation of specific targets involved in inflammation such as IkB and the glucocorticoid receptor. For many of its actions, RSUME associates with regulatory proteins of ubiquitin and SUMO cascades, such as the E2-SUMO conjugase Ubc9 or the E3 ubiquitin ligase VHL. New evidence about RSUME involvement in inflammatory and hypoxic conditions, such as cardiac tissue response to ischemia and neuropathic pain, and its role in several developmental processes, is discussed as well. Given the modulation of PTMs by RSUME in neuroendocrine tumors, we focus on its interactors and its mode of action. Insights into functional implications and molecular mechanisms of RSUME action on biomolecular modifications of key factors of pituitary adenomas and renal cell carcinoma provide renewed information about new targets to treat these pathologies.
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Affiliation(s)
- Mariana Fuertes
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - Belén Elguero
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - David Gonilski-Pacin
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - Florencia Herbstein
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - Josefina Rosmino
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - Nicolas Ciancio del Giudice
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - Manuel Fiz
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - Lara Falcucci
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
| | - Eduardo Arzt
- Instituto de Investigación en Biomedicina de Buenos Aires (IBioBA) - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) - Partner Institute of the Max Planck Society, Buenos Aires, Argentina
- Departamento de Fisiología y Biología Molecular y Celular, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
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Hotz PW, Müller S, Mendler L. SUMO-specific Isopeptidases Tuning Cardiac SUMOylation in Health and Disease. Front Mol Biosci 2021; 8:786136. [PMID: 34869605 PMCID: PMC8641784 DOI: 10.3389/fmolb.2021.786136] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Accepted: 10/26/2021] [Indexed: 12/28/2022] Open
Abstract
SUMOylation is a transient posttranslational modification with small-ubiquitin like modifiers (SUMO1, SUMO2 and SUMO3) covalently attached to their target-proteins via a multi-step enzymatic cascade. SUMOylation modifies protein-protein interactions, enzymatic-activity or chromatin binding in a multitude of key cellular processes, acting as a highly dynamic molecular switch. To guarantee the rapid kinetics, SUMO target-proteins are kept in a tightly controlled equilibrium of SUMOylation and deSUMOylation. DeSUMOylation is maintained by the SUMO-specific proteases, predominantly of the SENP family. SENP1 and SENP2 represent family members tuning SUMOylation status of all three SUMO isoforms, while SENP3 and SENP5 are dedicated to detach mainly SUMO2/3 from its substrates. SENP6 and SENP7 cleave polySUMO2/3 chains thereby countering the SUMO-targeted-Ubiquitin-Ligase (StUbL) pathway. Several biochemical studies pinpoint towards the SENPs as critical enzymes to control balanced SUMOylation/deSUMOylation in cardiovascular health and disease. This study aims to review the current knowledge about the SUMO-specific proteases in the heart and provides an integrated view of cardiac functions of the deSUMOylating enzymes under physiological and pathological conditions.
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Affiliation(s)
- Paul W Hotz
- Institute of Biochemistry II, Gustav Embden Zentrum, Faculty of Medicine, Goethe University Frankfurt, Frankfurt, Germany
| | - Stefan Müller
- Institute of Biochemistry II, Gustav Embden Zentrum, Faculty of Medicine, Goethe University Frankfurt, Frankfurt, Germany
| | - Luca Mendler
- Institute of Biochemistry II, Gustav Embden Zentrum, Faculty of Medicine, Goethe University Frankfurt, Frankfurt, Germany
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Li W, Chopp M, Zacharek A, Yang W, Chen Z, Landschoot-Ward J, Venkat P, Chen J. SUMO1 Deficiency Exacerbates Neurological and Cardiac Dysfunction after Intracerebral Hemorrhage in Aged Mice. Transl Stroke Res 2021; 12:631-642. [PMID: 32761461 DOI: 10.1007/s12975-020-00837-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 07/15/2020] [Accepted: 07/28/2020] [Indexed: 01/14/2023]
Abstract
Small ubiquitin-like modifier 1 (SUMO1) reduces cardiac hypertrophy and induces neuroprotective effects. Previous studies have found that intracerebral hemorrhage (ICH) provokes cardiac deficit in the absence of primary cardiac diseases in mice. In this study, we tested the hypothesis that SUMO1 deficiency leads to worse brain and heart dysfunction after ICH and SUMO1 plays a key role in regulating brain-heart interaction after ICH in aged mice. Aged (18-20 months) female SUMO1 null (SUMO1-/-) mice and wild-type (WT) C57BL/6 J mice were randomly divided into four groups (n = 8/group): (1) WT-sham group, (2) SUMO1-/--sham group, (3) WT-ICH group, and (4) SUMO1-/--ICH group. Cardiac function was measured by echocardiography. Neurological and cognitive functional tests were performed. Mice were sacrificed at 10 days after ICH for histological and immunohistochemically staining. Compared with WT-sham mice, WT-ICH mice exhibited (1) significantly (P < 0.05) decreased SUMO1 expression in heart tissue, (2) evident neurological and cognitive dysfunction as well as brain white matter deficits, (3) significantly increased cardiac dysfunction, and (4) inflammatory factor expression in the heart and brain. Compared with WT-ICH mice, SUMO1-/--ICH mice exhibited significantly increased: (1) brain hemorrhage volume, worse neurological and cognitive deficits, and increased white matter deficits; (2) cardiac dysfunction and cardiac fibrosis; (3) inflammatory response both in heart and brain tissue. Aged SUMO1-deficient female mice subjected to ICH not only exhibit increased neurological and cognitive functional deficit but also significantly increased cardiac dysfunction and inflammatory cell infiltration into the heart and brain. These data suggest that SUMO1 plays an important role in brain-heart interaction.
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Affiliation(s)
- Wei Li
- Department of Neurology, Henry Ford Hospital, Detroit, MI-48202, USA
| | - Michael Chopp
- Department of Neurology, Henry Ford Hospital, Detroit, MI-48202, USA
- Department of Physics, Oakland University, Rochester, MI-48309, USA
| | - Alex Zacharek
- Department of Neurology, Henry Ford Hospital, Detroit, MI-48202, USA
| | - Wei Yang
- Department of Anesthesiology, Duke University Medical Center, Durham, NC-27710, USA
| | - Zhili Chen
- Department of Neurology, Henry Ford Hospital, Detroit, MI-48202, USA
| | | | - Poornima Venkat
- Department of Neurology, Henry Ford Hospital, Detroit, MI-48202, USA
| | - Jieli Chen
- Department of Neurology, Henry Ford Hospital, Detroit, MI-48202, USA.
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Zhao W, Zhang X, Rong J. SUMOylation as a Therapeutic Target for Myocardial Infarction. Front Cardiovasc Med 2021; 8:701583. [PMID: 34395563 PMCID: PMC8355363 DOI: 10.3389/fcvm.2021.701583] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/01/2021] [Indexed: 12/23/2022] Open
Abstract
Myocardial infarction is a prevalent and life-threatening cardiovascular disease. The main goal of existing interventional therapies is to restore coronary reperfusion while few are designed to ameliorate the pathology of heart diseases via targeting the post-translational modifications of those critical proteins. Small ubiquitin-like modifier (SUMO) proteins are recently discovered to form a new type of protein post-translational modifications (PTM), known as SUMOylation. SUMOylation and deSUMOylation are dynamically balanced in the maintenance of various biological processes including cell division, DNA repair, epigenetic transcriptional regulation, and cellular metabolism. Importantly, SUMOylation plays a critical role in the regulation of cardiac functions and the pathology of cardiovascular diseases, especially in heart failure and myocardial infarction. This review summarizes the current understanding on the effects of SUMOylation and SUMOylated proteins in the pathophysiology of myocardial infarction and identifies the potential treatments against myocardial injury via targeting SUMO. Ultimately, this review recommends SUMOylation as a key therapeutic target for treating cardiovascular diseases.
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Affiliation(s)
- Wei Zhao
- Li Ka Shing Faculty of Medicine, School of Chinese Medicine, University of Hong Kong, Hong Kong, China.,Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Xiuying Zhang
- Li Ka Shing Faculty of Medicine, School of Chinese Medicine, University of Hong Kong, Hong Kong, China
| | - Jianhui Rong
- Li Ka Shing Faculty of Medicine, School of Chinese Medicine, University of Hong Kong, Hong Kong, China.,Shenzhen Institute of Research and Innovation, The University of Hong Kong, Shenzhen, China
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Xia Q, Mao M, Zeng Z, Luo Z, Zhao Y, Shi J, Li X. Inhibition of SENP6 restrains cerebral ischemia-reperfusion injury by regulating Annexin-A1 nuclear translocation-associated neuronal apoptosis. Am J Cancer Res 2021; 11:7450-7470. [PMID: 34158860 PMCID: PMC8210613 DOI: 10.7150/thno.60277] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Accepted: 05/20/2021] [Indexed: 12/24/2022] Open
Abstract
Rationale: Annexin-A1 (ANXA1) has previously been proposed to play a crucial role in neuronal apoptosis during ischemic stroke injury. Our recent study demonstrated that ANXA1 was modified by SUMOylation, and that this modification was greatly weakened after cerebral ischemia, but its effect on neuronal death and the underlying mechanism have not been fully elucidated. Methods: Mice subjected to middle cerebral artery occlusion were established as the animal model and primary cultured neurons treated with oxygen-glucose deprivation and reperfusion was established as the cell model of ischemic stroke. The Ni2+-NTA agarose affinity pull-down assay was carried out to determine the SUMOylation level of ANXA1. Co-immunoprecipitation assays was utilized to explore the protein interaction. Immunoblot analysis, quantitative real-time PCR, Luciferase reporter assay were performed to identify the regulatory mechanism. LDH release and TUNEL staining was performed to investigate the neuronal cytotoxicity and apoptosis, respectively. Results: In this study, we identified the deSUMOylating enzyme sentrin/SUMO-specific protease 6 (SENP6) as a negative regulator of ANXA1 SUMOylation. Notably, we found that SENP6-mediated deSUMOylation of ANXA1 induced its nuclear translocation and triggered neuronal apoptosis during cerebral ischemic injury. A mechanistic study demonstrated that SENP6-mediated deSUMOylation of ANXA1 promoted TRPM7- and PKC-dependent phosphorylation of ANXA1. Furthermore, blocking the deSUMOylation of ANXA1 mediated by SENP6 inhibited the transcriptional activity of p53, decreased Bid expression, suppressed caspase-3 pathway activation and reduced the apoptosis of primary neurons subjected to oxygen-glucose deprivation and reperfusion. More importantly, SENP6 inhibition by overexpression of a SENP6 catalytic mutant in neurons resulted in significant improvement in neurological function in the mouse model of ischemic stroke. Conclusions: Taken together, the results of this study identified a previously unidentified function of SENP6 in neuronal apoptosis and strongly indicated that SENP6 inhibition may provide therapeutic benefits for cerebral ischemia.
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Kumar A, Chauhan G, Sharma S, Dabla S, Sylaja PN, Chaudhary N, Gupta S, Agrawal CS, Anand KS, Srivastava AK, Vibha D, Sagar R, Raj R, Maheshwari A, Vivekanandhan S, Kaul B, Raghavan S, Gorthi SP, Mohania D, Kaushik S, Yadav RK, Hazarika A, Sharma P, Prasad K. Association of SUMOylation Pathway Genes With Stroke in a Genome-Wide Association Study in India. Neurology 2021; 97:e345-e356. [PMID: 34031191 DOI: 10.1212/wnl.0000000000012258] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 04/21/2021] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVE To undertake a genome-wide association study (GWAS) to identify genetic variants for stroke in an Indian population. METHODS In a hospital-based case-control study, 8 teaching hospitals in India recruited 4,088 participants, including 1,609 stroke cases. Imputed genetic variants were tested for association with stroke subtypes using both single-marker and gene-based tests. Association with vascular risk factors was performed with logistic regression. Various databases were searched for replication, functional annotation, and association with related traits. Status of candidate genes previously reported in the Indian population was also checked. RESULTS Associations of vascular risk factors with stroke were similar to previous reports and show modifiable risk factors such as hypertension, smoking, and alcohol consumption as having the highest effect. Single-marker-based association revealed 2 loci for cardioembolic stroke (1p21 and 16q24), 2 for small vessel disease stroke (3p26 and 16p13), and 4 for hemorrhagic stroke (3q24, 5q33, 6q13, and 19q13) at p < 5 × 10-8. The index single nucleotide polymorphism of 1p21 is an expression quantitative trait locus (p lowest = 1.74 × 10-58) for RWDD3 involved in SUMOylation and is associated with platelet distribution width (1.15 × 10-9) and 18-carbon fatty acid metabolism (p = 7.36 × 10-12). In gene-based analysis, we identified 3 genes (SLC17A2, FAM73A, and OR52L1) at p < 2.7 × 10-6. Eleven of 32 candidate gene loci studied in an Indian population replicated (p < 0.05), and 21 of 32 loci identified through previous GWAS replicated according to directionality of effect. CONCLUSIONS This GWAS of stroke in an Indian population identified novel loci and replicated previously known loci. Genetic variants in the SUMOylation pathway, which has been implicated in brain ischemia, were identified for association with stroke.
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Affiliation(s)
- Amit Kumar
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Ganesh Chauhan
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Shriram Sharma
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Surekha Dabla
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - P N Sylaja
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Neera Chaudhary
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Salil Gupta
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Chandra Sekhar Agrawal
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Kuljeet Singh Anand
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Achal Kumar Srivastava
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Deepti Vibha
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Ram Sagar
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Ritesh Raj
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Ankita Maheshwari
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Subbiah Vivekanandhan
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Bhavna Kaul
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Samudrala Raghavan
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Sankar Prasad Gorthi
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Dheeraj Mohania
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Samander Kaushik
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Rohtas Kanwar Yadav
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Anjali Hazarika
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Pankaj Sharma
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India
| | - Kameshwar Prasad
- From the Department of Neurology (A.K., A.K.S., D.V., R.S., R.R., A.M., K.P.), Department of Neurobiochemisty (S.V.), Dr. R. P. Centre for Ophthalmic Sciences (D.M.), and Cardio-Neuro Centre (A.H.), All India Institute of Medical Sciences, New Delhi; Centre for Brain Research (G.C.), Indian Institute of Science, Bangalore; Department of Neurology (S.S.), North Eastern Indira Gandhi Regional Institute of Health and Medical Sciences, Shillong, Meghalaya; Department of Neurology (S.D.), Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences, Rohtak, Haryana; Department of Neurology (P.N.S.), Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala; Department of Neurology (N.C., B.K., S.R.), Vardhman Mahavir Medical College and Safdarjung Hospital; Department of Neurology (S.G., S.P.G.), Army Research and Referral Hospital; Department of Neurology (C.S.A.), Sir Ganga Ram Hospital; Ram Manohar Lohia Hospital (K.S.A.); Department of Biotechnology (S.K.), Maharshi Dayanand University, Government of India, New Delhi; Pandit Bhagwat Dayal Sharma Post Graduate Institute of Medical Sciences (R.K.Y.), Rohtak, Haryana, India; and Institute of Cardiovascular Research Royal Holloway (P.S.), University of London, Imperial College London, UK. Amit Kumar, Kameshwar Prasad, and Ganesh Chauhan are currently at Rajendra Institute of Medical Sciences, Ranchi, India.
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Nyquist P, Lefebvre A. Outside, Inside, Inside, Out: Different Genes Contribute to Cardioembolic Stroke in Indian Populations. Neurology 2021; 97:159-160. [PMID: 34031198 DOI: 10.1212/wnl.0000000000012260] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- Paul Nyquist
- From the Departments of Neurology, Anesthesia/Critical Care Medicine, and Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD.
| | - Austen Lefebvre
- From the Departments of Neurology, Anesthesia/Critical Care Medicine, and Neurosurgery, Johns Hopkins School of Medicine, Baltimore, MD
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Dias IB, Bouma HR, Henning RH. Unraveling the Big Sleep: Molecular Aspects of Stem Cell Dormancy and Hibernation. Front Physiol 2021; 12:624950. [PMID: 33867999 PMCID: PMC8047423 DOI: 10.3389/fphys.2021.624950] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 03/11/2021] [Indexed: 12/14/2022] Open
Abstract
Tissue-resident stem cells may enter a dormant state, also known as quiescence, which allows them to withstand metabolic stress and unfavorable conditions. Similarly, hibernating mammals can also enter a state of dormancy used to evade hostile circumstances, such as food shortage and low ambient temperatures. In hibernation, the dormant state of the individual and its cells is commonly known as torpor, and is characterized by metabolic suppression in individual cells. Given that both conditions represent cell survival strategies, we here compare the molecular aspects of cellular quiescence, particularly of well-studied hematopoietic stem cells, and torpor at the cellular level. Critical processes of dormancy are reviewed, including the suppression of the cell cycle, changes in metabolic characteristics, and cellular mechanisms of dealing with damage. Key factors shared by hematopoietic stem cell quiescence and torpor include a reversible activation of factors inhibiting the cell cycle, a shift in metabolism from glucose to fatty acid oxidation, downregulation of mitochondrial activity, key changes in hypoxia-inducible factor one alpha (HIF-1α), mTOR, reversible protein phosphorylation and autophagy, and increased radiation resistance. This similarity is remarkable in view of the difference in cell populations, as stem cell quiescence regards proliferating cells, while torpor mainly involves terminally differentiated cells. A future perspective is provided how to advance our understanding of the crucial pathways that allow stem cells and hibernating animals to engage in their 'great slumbers.'
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Affiliation(s)
- Itamar B. Dias
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Hjalmar R. Bouma
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
- Department of Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
| | - Robert H. Henning
- Department of Clinical Pharmacy and Pharmacology, University Medical Center Groningen, University of Groningen, Groningen, Netherlands
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Li X, Xia Q, Mao M, Zhou H, Zheng L, Wang Y, Zeng Z, Yan L, Zhao Y, Shi J. Annexin-A1 SUMOylation regulates microglial polarization after cerebral ischemia by modulating IKKα stability via selective autophagy. SCIENCE ADVANCES 2021; 7:7/4/eabc5539. [PMID: 33523920 PMCID: PMC7817101 DOI: 10.1126/sciadv.abc5539] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 12/01/2020] [Indexed: 05/31/2023]
Abstract
Annexin-A1 (ANXA1) has recently been proposed to play a role in microglial activation after brain ischemia, but the underlying mechanism remains poorly understood. Here, we demonstrated that ANXA1 is modified by SUMOylation, and SUMOylated ANXA1 could promote the beneficial phenotype polarization of microglia. Mechanistically, SUMOylated ANXA1 suppressed nuclear factor κB activation and the production of proinflammatory mediators. Further study revealed that SUMOylated ANXA1 targeted the IκB kinase (IKK) complex and selectively enhanced IKKα degradation. Simultaneously, we detected that SUMOylated ANXA1 facilitated the interaction between IKKα and NBR1 to promote IKKα degradation through selective autophagy. Further work revealed that the overexpression of SUMOylated ANXA1 in microglia/macrophages resulted in marked improvement in neurological function in a mouse model of cerebral ischemia. Collectively, our study demonstrates a previously unidentified mechanism whereby SUMOylated ANXA1 regulates microglial polarization and strongly indicates that up-regulation of ANXA1 SUMOylation in microglia may provide therapeutic benefits for cerebral ischemia.
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Affiliation(s)
- Xing Li
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan 430030, Hubei Province, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Qian Xia
- Department of Anesthesiology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Meng Mao
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan 430030, Hubei Province, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Huijuan Zhou
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan 430030, Hubei Province, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Lu Zheng
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan 430030, Hubei Province, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yi Wang
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan 430030, Hubei Province, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Zhen Zeng
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan 430030, Hubei Province, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Lulu Yan
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan 430030, Hubei Province, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Yin Zhao
- Department of Ophthalmology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
| | - Jing Shi
- Department of Neurobiology, School of Basic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China.
- Key Laboratory of Neurological Diseases, Ministry of Education, Wuhan 430030, Hubei Province, China
- The Institute for Brain Research, Collaborative Innovation Center for Brain Science, Huazhong University of Science and Technology, Wuhan 430030, Hubei Province, China
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Zhou H, Zhang L, Li Y, Wu G, Zhu H, Zhang H, Su JK, Guo L, Zhou Q, Xiong F, Yu Q, Yang P, Zhang S, Cai J, Wang CY. Cigarette smoke extract stimulates bronchial epithelial cells to undergo a SUMOylation turnover. BMC Pulm Med 2020; 20:276. [PMID: 33097022 PMCID: PMC7584069 DOI: 10.1186/s12890-020-01300-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Accepted: 09/21/2020] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chronic obstructive pulmonary disease (COPD) characterized by the airway and lung inflammation, is a leading cause of morbidity and mortality worldwide, especially among smokers over 40 years of age and individuals exposed to biomass smoke. Although the detailed mechanisms of this disease remain elusive, there is feasible evidence that protein posttranslational modifications (PTMs) may play a role in its pathoetiology. We thus conducted studies to dissect the effect of cigarette smoke extracts (CSE) on the change of SUMOylated substrates in human bronchial epithelial cells (HBEs). METHODS Samples were collected in HBEs with or without 24 h of CSE insult and then subjected to Western-blot and LC-MS/MS analysis. Subsequently, bioinformatic tools were used to analyze the data. The effect of SUMOylation on cytochrome P450 1A1 (CYP1A1) was evaluated by flow cytometry. RESULTS It was noted that CSE stimulated HBEs to undergo a SUMOylation turnover as evidenced by the changes of SUMOylated substrates and SUMOylation levels for a particular substrate. The SUMOylated proteins are relevant to the regulation of biological processes, molecular function and cellular components. Particularly, CSE stimulated a significant increase of SUMOylated CYP1A1, a critical enzyme involved in the induction of oxidative stress. CONCLUSIONS Our data provide a protein SUMOylation profile for better understanding of the mechanisms underlying COPD and support that smoking induces oxidative stress in HBEs, which may predispose to the development of COPD in clinical settings.
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Affiliation(s)
- Haifeng Zhou
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
| | - Lei Zhang
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yang Li
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
| | - Guorao Wu
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - He Zhu
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
| | - Huilan Zhang
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jia-Kun Su
- The Technology Center, China Tobacco Jiangxi Industrial Co., Ltd., Nanchang High Technology Development Valley, Nanchang, 330096, China
| | - Lei Guo
- The Technology Center, China Tobacco Jiangxi Industrial Co., Ltd., Nanchang High Technology Development Valley, Nanchang, 330096, China
| | - Qing Zhou
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
| | - Fei Xiong
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
| | - Qilin Yu
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
| | - Ping Yang
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
| | - Shu Zhang
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China
| | - Jibao Cai
- The Technology Center, China Tobacco Jiangxi Industrial Co., Ltd., Nanchang High Technology Development Valley, Nanchang, 330096, China.
| | - Cong-Yi Wang
- The Center for Biomedical Research, Tongji Hospital Research Building, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, Caidian, 431000, China.
- Department of Respiratory and Critical Care Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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Zhao S, Xiao P, Cui H, Gong P, Lin C, Chen F, Tang Z. Hypothermia-Induced Ubiquitination of Voltage-Dependent Anion Channel 3 Protects BV2 Microglia Cells From Cytotoxicity Following Oxygen-Glucose Deprivation/Recovery. Front Mol Neurosci 2020; 13:100. [PMID: 32581711 PMCID: PMC7289978 DOI: 10.3389/fnmol.2020.00100] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 05/11/2020] [Indexed: 12/21/2022] Open
Abstract
Background: Hypothermia attenuates microglial activation and exerts a potential neuroprotective effect against cerebral ischemic-reperfusion (I/R) injury. However, the underlying mechanism remains to be elucidated. In this in vitro study, a model of oxygen-glucose deprivation, followed by recovery (OGD/R), was used to investigate whether hypothermia exerts anti-inflammatory and anti-apoptosis properties via enhanced ubiquitination and down-regulation of voltage-dependent anion channel 3 (VDAC3) expression. Methods: BV2 microglia were cultured under OGD for 4 h following reperfusion with or without hypothermia for 2, 4, or 8 h. M1 and M2 microglia markers [inducible nitric oxide synthase (iNOS) and arginase (Arg)1] were detected using immunofluorescence. The levels of pro-inflammatory cytokines [tumor necrosis factor (TNF) α, interleukin (IL)-1β], and anti-inflammatory factor (IL-10) were determined using enzyme-linked immunosorbent assay (ELISA). Mitochondrial membrane potential (ΔΨm) was assayed by JC-1 staining using a flow cytometer. Expression of caspase-3, cleaved caspase-3, and VDAC3 were assessed using western blot analysis. The cellular locations and interactions of ubiquitin and VDAC3 were identified using double immunofluorescence staining and immunoprecipitation (IP) assay. Also, the level of the VDAC3 mRNA was determined using a quantitative polymerase chain reaction (qPCR). Results: Hypothermia inhibited the OGD/R-induced microglia activation and differentiation into the M1 type with pro-inflammatory effect, whereas it promoted differentiation to the M2 type with anti-inflammatory effect. Hypothermia attenuated OGD/R-induced loss of Δψm, as well as the expression of apoptosis-associated proteins. Compared to normothermia, hypothermia increased the level of ubiquitinated VDAC3 in the BV2 microglia at both 2 and 8 h of reperfusion. Furthermore, hypothermia did not attenuate VDAC3 mRNA expression in OGD/R-induced microglia. Conclusions: Hypothermia treatment during reperfusion, attenuated OGD/R-induced inflammation, and apoptosis in BV2 microglia. This might be due to the promotion of VDAC3 ubiquitination, identifying VDAC3 as a new target of hypothermia.
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Affiliation(s)
- Shen Zhao
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China.,Department of Emergency Medicine, Fujian Provincial Hospital, Fujian Institute of Emergency Research, Fuzhou, China
| | - Peng Xiao
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China.,Department of Emergency Medicine, Fujian Provincial Hospital, Fujian Institute of Emergency Research, Fuzhou, China
| | - Hao Cui
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
| | - Ping Gong
- Department of Emergency Medicine, the First Affiliated Hospital of Dalian Medical University, Dalian City, China
| | - Caijing Lin
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China.,Department of Emergency Medicine, Fujian Provincial Hospital, Fujian Institute of Emergency Research, Fuzhou, China
| | - Feng Chen
- Shengli Clinical Medical College, Fujian Medical University, Fuzhou, China.,Department of Emergency Medicine, Fujian Provincial Hospital, Fujian Institute of Emergency Research, Fuzhou, China
| | - Ziren Tang
- Department of Emergency Medicine, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China.,Beijing Key Laboratory of Cardiopulmonary Cerebral Resuscitation, Beijing Chao-Yang Hospital, Capital Medical University, Beijing, China
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17
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Bernstock JD, Peruzzotti-Jametti L, Leonardi T, Vicario N, Ye D, Lee YJ, Maric D, Johnson KR, Mou Y, Van Den Bosch A, Winterbone M, Friedman GK, Franklin RJM, Hallenbeck JM, Pluchino S. SUMOylation promotes survival and integration of neural stem cell grafts in ischemic stroke. EBioMedicine 2019; 42:214-224. [PMID: 30905846 PMCID: PMC6491415 DOI: 10.1016/j.ebiom.2019.03.035] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 02/25/2019] [Accepted: 03/13/2019] [Indexed: 12/29/2022] Open
Abstract
Background Neural stem cell (NSC)-based therapies hold great promise for treating diseases of the central nervous system (CNS). However, several fundamental problems still need to be overcome to fully exploit the clinical potential of NSC therapeutics. Chief among them is the limited survival of NSC grafts within hostile microenvironments. Methods Herein, we sought to engineer NSCs in an effort to increase graft survival within ischemic brain lesions via upregulation of global SUMOylation, a post-translational modification critically involved in mediating tolerance to ischemia/reperfusion. Findings NSCs overexpressing the SUMO E2-conjugase Ubc9 displayed resistance to oxygen-glucose-deprivation/restoration of oxygen/glucose (OGD/ROG) and enhanced neuronal differentiation in vitro, as well as increased survival and neuronal differentiation when transplanted in mice with transient middle cerebral artery occlusion in vivo. Interpretation Our work highlights a critical role for SUMOylation in NSC biology and identifies a biological pathway that can be targeted to increase the effectiveness of exogenous stem cell medicines in ischemic stroke. Fund Intramural Research Program of the NINDS/NIH, the Italian Multiple Sclerosis Foundation (FISM), the Bascule Charitable Trust, NIH-IRTA-OxCam and Wellcome Trust Research Training Fellowships. Ubc9-overexpressing NSCs demonstrate enhanced neuronal differentiation. Upregulating SUMOylation in NSCs increases resistance to ischemia/reperfusion in vitro. Ubc9-overexpressing NSC grafts robustly integrate within the brain of mice post-stroke.
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Affiliation(s)
- Joshua D Bernstock
- Stroke Branch, National Institutes of Health (NINDS/NIH), National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA; Department of Clinical Neurosciences, University of Cambridge, UK.
| | - Luca Peruzzotti-Jametti
- Department of Clinical Neurosciences, University of Cambridge, UK; NIHR Biomedical Research Centre, University of Cambridge, UK.
| | - Tommaso Leonardi
- Department of Clinical Neurosciences, University of Cambridge, UK; NIHR Biomedical Research Centre, University of Cambridge, UK
| | - Nunzio Vicario
- Department of Clinical Neurosciences, University of Cambridge, UK; Department of Biomedical and Biotechnological Sciences, Physiology Section, University of Catania, Italy
| | - Daniel Ye
- Stroke Branch, National Institutes of Health (NINDS/NIH), National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA
| | - Yang-Ja Lee
- Stroke Branch, National Institutes of Health (NINDS/NIH), National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA
| | - Dragan Maric
- Flow and Imaging Cytometry Core Facility, National Institutes of Health (NINDS/NIH), National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA
| | - Kory R Johnson
- Bioinformatics Section, Information Technology & Bioinformatics Program, Division of Intramural Research (DIR), (NINDS/NIH), Bethesda, MD, USA
| | - Yongshan Mou
- Stroke Branch, National Institutes of Health (NINDS/NIH), National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA
| | | | - Mark Winterbone
- Department of Clinical Neurosciences, University of Cambridge, UK
| | - Gregory K Friedman
- Department of Pediatrics and Neurosurgery, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Robin J M Franklin
- Department of Clinical Neurosciences, University of Cambridge, UK; Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, UK
| | - John M Hallenbeck
- Stroke Branch, National Institutes of Health (NINDS/NIH), National Institute of Neurological Disorders and Stroke, Bethesda, MD, USA.
| | - Stefano Pluchino
- Department of Clinical Neurosciences, University of Cambridge, UK; NIHR Biomedical Research Centre, University of Cambridge, UK.
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18
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Bernstock JD, Ye D, Smith JA, Lee YJ, Gessler FA, Yasgar A, Kouznetsova J, Jadhav A, Wang Z, Pluchino S, Zheng W, Simeonov A, Hallenbeck JM, Yang W. Quantitative high-throughput screening identifies cytoprotective molecules that enhance SUMO conjugation via the inhibition of SUMO-specific protease (SENP)2. FASEB J 2018; 32:1677-1691. [PMID: 29146736 PMCID: PMC5892725 DOI: 10.1096/fj.201700711r] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 11/06/2017] [Indexed: 12/18/2022]
Abstract
The development of novel neuroprotective treatments for acute stroke has been fraught with failures, which supports the view of ischemic brain damage as a highly complex multifactorial process. Post-translational modifications such as small ubiquitin-like modifier (SUMO)ylation have emerged as critical molecular regulatory mechanisms in states of both homeostasis and ischemic stress, as evidenced by our previous work. Accordingly, the clinical significance of the selective control of the global SUMOylation process has become apparent in studies of ischemic pathobiology and pathophysiology. Herein, we describe a process capable of identifying and characterizing small molecules with the potential of targeting the SUMO system through inhibition of SUMO deconjugation in an effort to develop novel stroke therapies.-Bernstock, J. D., Ye, D., Smith, J. A., Lee, Y.-J., Gessler, F. A., Yasgar, A., Kouznetsova, J., Jadhav, A., Wang, Z., Pluchino, S., Zheng, W., Simeonov, A., Hallenbeck, J. M., Yang, W. Quantitative high-throughput screening identifies cytoprotective molecules that enhance SUMO-conjugation via the inhibition of SUMO-specific protease (SENP)2.
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Affiliation(s)
- Joshua D. Bernstock
- Stroke Branch, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health, Bethesda, Maryland, USA
- Division of Stem Cell Neurobiology, Department of Clinical Neurosciences, Wellcome Trust-Medical Research Council Stem Cell Institute and National Institute of Health Research Biomedical Research Centre, University of Cambridge, United Kingdom
- UAB School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Daniel Ye
- Stroke Branch, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health, Bethesda, Maryland, USA
| | - Jayden A. Smith
- Division of Stem Cell Neurobiology, Department of Clinical Neurosciences, Wellcome Trust-Medical Research Council Stem Cell Institute and National Institute of Health Research Biomedical Research Centre, University of Cambridge, United Kingdom
| | - Yang-Ja Lee
- Stroke Branch, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health, Bethesda, Maryland, USA
| | - Florian A. Gessler
- Division of Stem Cell Neurobiology, Department of Clinical Neurosciences, Wellcome Trust-Medical Research Council Stem Cell Institute and National Institute of Health Research Biomedical Research Centre, University of Cambridge, United Kingdom
| | - Adam Yasgar
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA; and
| | - Jennifer Kouznetsova
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA; and
| | - Ajit Jadhav
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA; and
| | - Zhuoran Wang
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA
| | - Stefano Pluchino
- Division of Stem Cell Neurobiology, Department of Clinical Neurosciences, Wellcome Trust-Medical Research Council Stem Cell Institute and National Institute of Health Research Biomedical Research Centre, University of Cambridge, United Kingdom
| | - Wei Zheng
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA; and
| | - Anton Simeonov
- National Center for Advancing Translational Sciences, National Institutes of Health, Bethesda, Maryland, USA; and
| | - John M. Hallenbeck
- Stroke Branch, National Institute of Neurological Disorders and Stroke (NINDS), National Institutes of Health, Bethesda, Maryland, USA
| | - Wei Yang
- Center for Perioperative Organ Protection, Department of Anesthesiology, Duke University Medical Center, Durham, North Carolina, USA
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19
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Knock E, Matsuzaki S, Takamura H, Satoh K, Rooke G, Han K, Zhang H, Staniszewski A, Katayama T, Arancio O, Fraser PE. SUMO1 impact on Alzheimer disease pathology in an amyloid-depositing mouse model. Neurobiol Dis 2018; 110:154-165. [DOI: 10.1016/j.nbd.2017.11.015] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 11/20/2017] [Accepted: 11/29/2017] [Indexed: 12/27/2022] Open
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20
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Lee YJ, Bernstock JD, Klimanis D, Hallenbeck JM. Akt Protein Kinase, miR-200/miR-182 Expression and Epithelial-Mesenchymal Transition Proteins in Hibernating Ground Squirrels. Front Mol Neurosci 2018; 11:22. [PMID: 29440989 PMCID: PMC5797618 DOI: 10.3389/fnmol.2018.00022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2017] [Accepted: 01/16/2018] [Indexed: 01/06/2023] Open
Abstract
Hibernating 13-lined ground squirrels (Ictidomys tridecemlineatus; TLGS) rank among the most brain hypoperfusion-tolerant mammals known. Herein we provide some evidence of cycling between an epithelial phenotype and a hybrid epithelial/mesenchymal (E/M) phenotype (partial EMT) within the brains of TLGS during each bout of hibernation torpor. During hibernation torpor, expression of the epithelial marker E-cadherin (E-CDH) was reduced, while expression of the well-known mesenchymal markers vimentin and Sox2 were increased. P-cadherin (P-CDH), which has recently been proposed as a marker of intermediate/partial EMT, also increased during torpor, suggesting that a partial EMT may be taking place during hibernation torpor. Members of the miR-200 family and miR-182 cluster and Akt isoforms (Akt1, Akt2), well-known EMT regulators, were also differentially regulated in the TLGS brain during hibernation bouts. Using SHSY5Y cells, we also demonstrate that the Akt1/Akt2 ratio determined the expression levels of miR-200/miR-182 miRNA family members, and that these miRNAs controlled the expression of EMT-related proteins. Accordingly, we propose that such cell state transitions (EMT/MET) may be one of the mechanisms underlying the extraordinary ischemic tolerance of the TLGS brain during hibernation bouts; hibernator brain cells appear to enter reversible states that confer the stress survival characteristics of cancer cells without the risk of neoplastic transformation.
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Affiliation(s)
- Yang-Ja Lee
- Clinical Investigation Section, Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, United States
| | - Joshua D Bernstock
- Clinical Investigation Section, Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, United States
| | - Dace Klimanis
- Clinical Investigation Section, Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, United States
| | - John M Hallenbeck
- Clinical Investigation Section, Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, United States
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21
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Bernstock JD, Ye DG, Griffin A, Lee YJ, Lynch J, Latour LL, Friedman GK, Maric D, Hallenbeck JM. Cerebral Ischemia Increases Small Ubiquitin-Like Modifier Conjugation within Human Penumbral Tissue: Radiological-Pathological Correlation. Front Neurol 2018; 8:738. [PMID: 29375471 PMCID: PMC5770374 DOI: 10.3389/fneur.2017.00738] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 12/20/2017] [Indexed: 12/21/2022] Open
Abstract
Posttranslational modification by small ubiquitin-like modifier (SUMO) regulates myriad physiological processes within cells and has been demonstrated to be highly activated in murine brains after cerebral ischemia. Numerous in vitro and murine in vivo studies have demonstrated that this increased SUMO conjugation is an endogenous neuroprotective stress response that has potential in being leveraged to develop novel therapies for ischemic stroke. However, SUMO activation has not yet been studied in poststroke human brains, presenting a clear limitation in translating experimental successes in murine models to human patients. Accordingly, here, we present a case wherein the brain tissue of a stroke patient (procured shortly after death) was processed by multiplex immunohistochemistry to investigate SUMO activation.
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Affiliation(s)
- Joshua D Bernstock
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States.,Department of Clinical Neurosciences, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom
| | - Daniel G Ye
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Allison Griffin
- Section on Stroke Diagnostics and Therapeutics, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States.,Center for Neuroscience and Regenerative Medicine at the Uniformed Services University of the Health Sciences, Bethesda, MD, United States
| | - Yang-Ja Lee
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - John Lynch
- Section on Stroke Diagnostics and Therapeutics, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Lawrence L Latour
- Section on Stroke Diagnostics and Therapeutics, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - Gregory K Friedman
- Division of Pediatric Hematology and Oncology, Department of Pediatrics, University of Alabama at Birmingham, Birmingham, AL, United States
| | - Dragan Maric
- Flow and Imaging Cytometry Core Facility, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - John M Hallenbeck
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
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22
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Liu X, Ren W, Jiang Z, Su Z, Ma X, Li Y, Jiang R, Zhang J, Yang X. Hypothermia inhibits the proliferation of bone marrow-derived mesenchymal stem cells and increases tolerance to hypoxia by enhancing SUMOylation. Int J Mol Med 2017; 40:1631-1638. [PMID: 29039464 PMCID: PMC5716456 DOI: 10.3892/ijmm.2017.3167] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2016] [Accepted: 09/05/2017] [Indexed: 11/23/2022] Open
Abstract
Hypothermia therapy has a positive effect on patients with severe brain injury. Recent studies have shown that mild hypothermia increases the survival of bone marrow-derived mesenchymal stem cells (BMSCs) in a hypoxic environment; however, the underlying mechanisms are not yet fully understood. Small ubiquitin-like modifiers (SUMOs) are sensitive to temperature stress reactions and are considered to exert a protective effect. In this study, we examined the protective effects of hypothermia on BMSCs in terms of SUMO protein modification. First, we found that mild hypothermia inhibited the proliferation and differentiation of BMSCs and increased cell tolerance to a hypoxic environment. Second, hypothermia significantly increased the levels of SUMO modification of multiple proteins in BMSCs. The knockdown of SUMO1/2/3 induced the rapid aging of the BMSCs, while the inhibition of the SUMO-conjugating enzyme, Ubc9, reduced cell proliferation and increased the proportion of BMSCs differentiating into nerve cells. Moreover, the tolerance of BMSCs to the hypoxic environment was significantly decreased. Lastly, we investigated 4 reported SUMO target proteins, anti-proliferating cell nuclear antigen, octamer-binding transcription factor 4, p53 and hypoxia-inducible factor-1α, to confirm that SUMO modification was indeed involved in maintaining the proliferation, inhibiting differentiation and enhancing the resistance of BMSCs against adverse conditions. Taken together, our results indicate that the SUMO pathway is involved in the response to hypothermic stress, and that SUMOylation may be an important protective mechanism against hypothermia for the survival of BMSCs under unfavorable conditions.
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Affiliation(s)
- Xiaozhi Liu
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Wenbo Ren
- Department of Neurology, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
| | - Zhongmin Jiang
- Department of Pathology, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
| | - Zhiguo Su
- Department of Neurosurgery, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
| | - Xiaofang Ma
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
| | - Yanxia Li
- Central Laboratory, The Fifth Central Hospital of Tianjin, Tianjin 300450, P.R. China
| | - Rongcai Jiang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Jianning Zhang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
| | - Xinyu Yang
- Department of Neurosurgery, Tianjin Medical University General Hospital, Tianjin 300052, P.R. China
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23
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Abstract
Protein modification with the small ubiquitin-related modifier (SUMO) can affect protein function, enzyme activity, protein-protein interactions, protein stability, protein targeting and cellular localization. SUMO influences the function and regulation of metabolic enzymes within pathways, and in some cases targets entire metabolic pathways by affecting the activity of transcription factors or by facilitating the translocation of entire metabolic pathways to subcellular compartments. SUMO modification is also a key component of nutrient- and metabolic-sensing mechanisms that regulate cellular metabolism. In addition to its established roles in maintaining metabolic homeostasis, there is increasing evidence that SUMO is a key factor in facilitating cellular stress responses through the regulation and/or adaptation of the most fundamental metabolic processes, including energy and nucleotide metabolism. This review focuses on the role of SUMO in cellular metabolism and metabolic disease.
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24
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SUMOylation and calcium signalling: potential roles in the brain and beyond. Neuronal Signal 2017; 1:NS20160010. [PMID: 32714579 PMCID: PMC7373246 DOI: 10.1042/ns20160010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Revised: 07/10/2017] [Accepted: 07/11/2017] [Indexed: 12/23/2022] Open
Abstract
Small ubiquitin-like modifier (SUMO) conjugation (or SUMOylation) is a post-translational protein modification implicated in alterations to protein expression, localization and function. Despite a number of nuclear roles for SUMO being well characterized, this process has only started to be explored in relation to membrane proteins, such as ion channels. Calcium ion (Ca2+) signalling is crucial for the normal functioning of cells and is also involved in the pathophysiological mechanisms underlying relevant neurological and cardiovascular diseases. Intracellular Ca2+ levels are tightly regulated; at rest, most Ca2+ is retained in organelles, such as the sarcoplasmic reticulum, or in the extracellular space, whereas depolarization triggers a series of events leading to Ca2+ entry, followed by extrusion and reuptake. The mechanisms that maintain Ca2+ homoeostasis are candidates for modulation at the post-translational level. Here, we review the effects of protein SUMOylation, including Ca2+ channels, their proteome and other proteins associated with Ca2+ signalling, on vital cellular functions, such as neurotransmission within the central nervous system (CNS) and in additional systems, most prominently here, in the cardiac system.
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25
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Bernstock JD, Peruzzotti-Jametti L, Ye D, Gessler FA, Maric D, Vicario N, Lee YJ, Pluchino S, Hallenbeck JM. Neural stem cell transplantation in ischemic stroke: A role for preconditioning and cellular engineering. J Cereb Blood Flow Metab 2017; 37:2314-2319. [PMID: 28303738 PMCID: PMC5531358 DOI: 10.1177/0271678x17700432] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2017] [Revised: 02/16/2017] [Accepted: 02/24/2017] [Indexed: 01/10/2023]
Abstract
Ischemic stroke continues to be a leading cause of morbidity and mortality throughout the world. To protect and/or repair the ischemic brain, a multitiered approach may be centered on neural stem cell (NSC) transplantation. Transplanted NSCs exert beneficial effects not only via structural replacement, but also via immunomodulatory and/or neurotrophic actions. Unfortunately, the clinical translation of such promising therapies remains elusive, in part due to their limited persistence/survivability within the hostile ischemic microenvironment. Herein, we discuss current approaches for the development of NSCs more amenable to survival within the ischemic brain as a tool for future cellular therapies in stroke.
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Affiliation(s)
- Joshua D Bernstock
- Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
| | - Luca Peruzzotti-Jametti
- Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Daniel Ye
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
| | - Florian A Gessler
- Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Dragan Maric
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
| | - Nunzio Vicario
- Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Yang-Ja Lee
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
| | - Stefano Pluchino
- Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - John M Hallenbeck
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
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26
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Jung HY, Kim DW, Kwon HJ, Yoo DY, Hwang IK, Won MH, Cho TG, Choi SY, Moon SM. SUMO-1 delays neuronal damage in the spinal cord following ischemia/reperfusion. Mol Med Rep 2017; 15:4312-4318. [PMID: 28487986 DOI: 10.3892/mmr.2017.6527] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 02/15/2017] [Indexed: 11/06/2022] Open
Abstract
The present study investigated the protective effects of small ubiquitin-like modifier 1 (SUMO-1) on spinal cord ischemic damage in rabbits. A trans‑activator of transcription (Tat)‑SUMO‑1 fusion protein was prepared, and transient spinal cord ischemia was induced by occlusion of the abdominal aorta for 15 min. Vehicle (glycerol) or 1 mg/kg Tat-1-SUMO‑1 was administered intraperitoneally to the rabbits immediately following ischemia/reperfusion. Administration of Tat-SUMO-1 did not lead to significant alterations in arterial blood gases [partial pressure (Pa)CO2 and PaO2], pH, or blood glucose levels prior to ischemia, 10 min after occlusion or 10 min after reperfusion. Mean arterial pressure was significantly decreased only during occlusion. Motor behaviors were assessed at 24, 48 and 72 h after ischemia/reperfusion using Tarlov's criteria. Administration of Tat‑SUMO‑1 significantly improved Tarlov scores 24 h after ischemia/reperfusion and the number of cresyl violet positive neurons was significantly increased in the ventral horn of the spinal cord compared with the vehicle‑treated group. However, Tarlov scores were consistently decreased at 48 and 72 h after ischemia/reperfusion in the Tat‑SUMO‑1‑treated group, and Tarlov scores and the number of cresyl violet positive neurons were not significantly different between the vehicle‑ and Tat‑SUMO‑1‑treated groups after 72 h. Tat-SUMO‑1 administration significantly ameliorated a reduction in Cu, Zn‑superoxide dismutase activity and an increase in lipid peroxidation 24 h after ischemia/reperfusion; however, these effects were not present at 72 h. These results suggested that Tat‑SUMO‑1 may delay, although not protect against, neuronal death by regulating oxidative stress in the ventral horn of the spinal cord and that combination therapy using Tat‑SUMO‑1 with other compounds may provide a therapeutic approach to decrease neuronal damage.
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Affiliation(s)
- Hyo Young Jung
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung‑Wonju National University, Gangneung, Gangwon 25457, Republic of Korea
| | - Hyun Jung Kwon
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung‑Wonju National University, Gangneung, Gangwon 25457, Republic of Korea
| | - Dae Young Yoo
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - In Koo Hwang
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, Research Institute for Veterinary Science, Seoul National University, Seoul 08826, Republic of Korea
| | - Moo-Ho Won
- Department of Neurobiology, School of Medicine, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Tack-Geun Cho
- Department of Neurosurgery, Kangnam Sacred Heart Hospital, College of Medicine, Hallym University, Seoul 07441, Republic of Korea
| | - Soo Young Choi
- Department of Biomedical Sciences, Research Institute for Bioscience and Biotechnology, Hallym University, Chuncheon, Gangwon 24252, Republic of Korea
| | - Seung Myung Moon
- Department of Neurosurgery, Dongtan Sacred Heart Hospital, College of Medicine, Hallym University, Hwaseong, Gyeonggi 18450, Republic of Korea
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27
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Sumoylation as an Integral Mechanism in Bacterial Infection and Disease Progression. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 963:389-408. [DOI: 10.1007/978-3-319-50044-7_22] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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Anderson DB, Zanella CA, Henley JM, Cimarosti H. Sumoylation: Implications for Neurodegenerative Diseases. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 963:261-281. [PMID: 28197918 DOI: 10.1007/978-3-319-50044-7_16] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The covalent posttranslational modifications of proteins are critical events in signaling cascades that enable cells to efficiently, rapidly and reversibly respond to extracellular stimuli. This is especially important in the CNS where the processes affecting synaptic communication between neurons are highly complex and very tightly regulated. Sumoylation regulates the function and fate of a diverse array of proteins and participates in the complex cell signaling pathways required for cell survival. One of the most complex signaling pathways is synaptic transmission.Correct synaptic function is critical to the working of the brain and its alteration through synaptic plasticity mediates learning, mental disorders and stroke. The investigation of neuronal sumoylation is a new and exciting field and the functional and pathophysiological implications are far-reaching. Sumoylation has already been implicated in a diverse array of neurological disorders. Here we provide an overview of current literature highlighting recent insights into the role of sumoylation in neurodegeneration. In addition we present a brief assessment of drug discovery in the analogous ubiquitin system and extrapolate on the potential for development of novel therapies that might target SUMO-associated mechanisms of neurodegenerative disease.
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Affiliation(s)
- Dina B Anderson
- Ipsen Bioinnovation Ltd, Units 4-10 The Quadrant, Barton Lane, Abingdon, OX14 3YS, UK
| | - Camila A Zanella
- Department of Pharmacology, Federal University of Santa Catarina, Campus Universitario - Trindade, Florianopolis, CEP, 88040-900, Brazil
| | - Jeremy M Henley
- MRC Centre for Synaptic Plasticity, School of Biochemistry, University of Bristol, University Walk, Bristol, BS8 1TD, UK
| | - Helena Cimarosti
- Department of Pharmacology, Federal University of Santa Catarina, Campus Universitario - Trindade, Florianopolis, CEP, 88040-900, Brazil.
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Zhang L, Liu X, Sheng H, Liu S, Li Y, Zhao JQ, Warner DS, Paschen W, Yang W. Neuron-specific SUMO knockdown suppresses global gene expression response and worsens functional outcome after transient forebrain ischemia in mice. Neuroscience 2016; 343:190-212. [PMID: 27919694 DOI: 10.1016/j.neuroscience.2016.11.036] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/22/2016] [Accepted: 11/23/2016] [Indexed: 12/30/2022]
Abstract
Small ubiquitin-like modifier (SUMO) conjugation (SUMOylation) plays key roles in neurologic function in health and disease. Neuronal SUMOylation is essential for emotionality and cognition, and this pathway is dramatically activated in post-ischemic neurons, a neuroprotective response to ischemia. It is also known from cell culture studies that SUMOylation modulates gene expression. However, it remains unknown how SUMOylation regulates neuronal gene expression in vivo, in the physiologic state and after ischemia, and modulates post-ischemic recovery of neurologic function. To address these important questions, we used a SUMO1-3 knockdown (SUMO-KD) mouse in which a Thy-1 promoter drives expression of 3 distinct microRNAs against SUMO1-3 to silence SUMO expression specifically in neurons. Wild-type and SUMO-KD mice were subjected to transient forebrain ischemia. Microarray analysis was performed in hippocampal CA1 samples, and neurologic function was evaluated. SUMOylation had opposite effects on neuronal gene expression before and after ischemia. In the physiological state, most genes regulated by SUMOylation were up-regulated in SUMO-KD compared to wild-type mice. Brain ischemia/reperfusion significantly modulated the expression levels of more than 400 genes in wild-type mice, with a majority of those genes upregulated. The extent of this post-ischemic transcriptome change was suppressed in SUMO-KD mice. Moreover, SUMO-KD mice exhibited significantly worse functional outcome. This suggests that suppression of global gene expression response in post-ischemic brain due to SUMO knockdown has a negative effect on post-ischemic neurologic function. Together, our data provide a basis for future studies to mechanistically link SUMOylation to neurologic function in health and disease.
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Affiliation(s)
- Lin Zhang
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA; Department of Neurosurgery, The Fifth Central Hospital of Tianjin, Tianjin, China
| | - Xiaozhi Liu
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA; Department of Neurosurgery, The Fifth Central Hospital of Tianjin, Tianjin, China
| | - Huaxin Sheng
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Shuai Liu
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Ying Li
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA; Department of Cardiology, The Fifth Central Hospital of Tianjin, Tianjin, China
| | - Julia Q Zhao
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - David S Warner
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Wulf Paschen
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA.
| | - Wei Yang
- Multidisciplinary Neuroprotection Laboratories, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA.
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Da Silva-Ferrada E, Ribeiro-Rodrigues TM, Rodríguez MS, Girão H. Proteostasis and SUMO in the heart. Int J Biochem Cell Biol 2016; 79:443-450. [PMID: 27662810 DOI: 10.1016/j.biocel.2016.09.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 09/15/2016] [Accepted: 09/16/2016] [Indexed: 12/31/2022]
Abstract
Heart proteostasis relies on a complex and integrated network of molecular processes surveilling organ performance under physiological and pathological conditions. For this purpose, cardiac cells depend on the correct function of their proteolytic systems, such as the ubiquitin-proteasome system (UPS), autophagy and the calpain system. Recently, the role of protein SUMOylation (an ubiquitin-like modification), has emerged as important modulator of cardiac proteostasis, which will be the focus of this review.
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Affiliation(s)
- Elisa Da Silva-Ferrada
- Institute for Biomedical Imaging and Life Sciences (IBILI) Research Consortium, University of Coimbra, Coimbra, Portugal; Center for Neuroscience and Cell Biology (CNC), Institute for Biomedical Imaging and Life Sciences (IBILI) (CNC.IBILI), University of Coimbra, Coimbra, Portugal
| | - Teresa M Ribeiro-Rodrigues
- Institute for Biomedical Imaging and Life Sciences (IBILI) Research Consortium, University of Coimbra, Coimbra, Portugal; Center for Neuroscience and Cell Biology (CNC), Institute for Biomedical Imaging and Life Sciences (IBILI) (CNC.IBILI), University of Coimbra, Coimbra, Portugal
| | - Manuel S Rodríguez
- Institut des Technologies Avancées en Sciences du Vivant (ITAV), Université de Toulouse, CNRS, UPS, France; Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, France
| | - Henrique Girão
- Institute for Biomedical Imaging and Life Sciences (IBILI) Research Consortium, University of Coimbra, Coimbra, Portugal; Center for Neuroscience and Cell Biology (CNC), Institute for Biomedical Imaging and Life Sciences (IBILI) (CNC.IBILI), University of Coimbra, Coimbra, Portugal.
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Neuroprotective hypothermia - Why keep your head cool during ischemia and reperfusion. Biochim Biophys Acta Gen Subj 2016; 1860:2521-2528. [PMID: 27475000 DOI: 10.1016/j.bbagen.2016.07.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Revised: 06/28/2016] [Accepted: 07/25/2016] [Indexed: 12/20/2022]
Abstract
BACKGROUND Targeted temperature management (TTM) is the induced cooling of the entire body or specific organs to help prevent ischemia and reperfusion (I/R) injury, as may occur during major surgery, cardiac resuscitation, traumatic brain injury and stroke. Ischemia and reperfusion induce neuronal damage by mitochondrial dysfunction and oxidative injury, ER stress, neuronal excitotoxicity, and a neuroinflammatory response, which may lead to activation of apoptosis pathways. SCOPE OF REVIEW The aim of the current review is to discuss TTM targets that convey neuroprotection and to identify potential novel pharmacological intervention strategies for the prevention of cerebral ischemia and reperfusion injury. MAJOR CONCLUSIONS TTM precludes I/R injury by reducing glutamate release and oxidative stress and inhibiting release of pro-inflammatory factors and thereby counteracts mitochondrial induced apoptosis, neuronal excitotoxicity, and neuroinflammation. Moreover, TTM promotes regulation of the unfolded protein response and induces SUMOylation and the production of cold shock proteins. These advantageous effects of TTM seem to depend on the clinical setting, as well as type and extent of the injury. Therefore, future aims should be to refine hypothermia management in order to optimize TTM utilization and to search for pharmacological agents mimicking the cellular effects of TTM. GENERAL SIGNIFICANCE Bundling knowledge about TTM in the experimental, translational and clinical setting may result in better approaches for diminishing I/R damage. While application of TTM in the clinical setting has some disadvantages, targeting its putative protective pathways may be useful to prevent I/R injury and reduce neurological complications.
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Abstract
Small ubiquitin-like modifiers (SUMOs) are essential for the regulation of several cellular processes and are potential therapeutic targets owing to their involvement in diseases such as cancer and Alzheimer disease. In the past decade, we have witnessed a rapid expansion of proteomic approaches for identifying sumoylated proteins, with recent advances in detecting site-specific sumoylation. In this Analysis, we combined all human SUMO proteomics data currently available into one cohesive database. We provide proteomic evidence for sumoylation of 3,617 proteins at 7,327 sumoylation sites, and insight into SUMO group modification by clustering the sumoylated proteins into functional networks. The data support sumoylation being a frequent protein modification (on par with other major protein modifications) with multiple nuclear functions, including in transcription, mRNA processing, DNA replication and the DNA-damage response.
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Abstract
SUMOylation is a ubiquitin-related transient posttranslational modification pathway catalyzing the conjugation of small ubiquitin-like modifier (SUMO) proteins (SUMO1, SUMO2, and SUMO3) to lysine residues of proteins. SUMOylation targets a wide variety of cellular regulators and thereby affects a multitude of different cellular processes. SUMO/sentrin-specific proteases are able to remove SUMOs from targets, contributing to a tight control of SUMOylated proteins. Genetic and cell biological experiments indicate a critical role of balanced SUMOylation/deSUMOylation for proper cardiac development, metabolism, and stress adaptation. Here, we review the current knowledge about SUMOylation/deSUMOylation in the heart and provide an integrated picture of cardiac functions of the SUMO system under physiologic or pathologic conditions. We also describe potential therapeutic approaches targeting the SUMO machinery to combat heart disease.
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Affiliation(s)
- Luca Mendler
- From the Institute of Biochemistry II, Goethe University, Medical School, Frankfurt, Germany (L.M., S.M.); Institute of Biochemistry, Faculty of General Medicine, University of Szeged, Szeged, Hungary (L.M.); and Department I - Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (T.B.)
| | - Thomas Braun
- From the Institute of Biochemistry II, Goethe University, Medical School, Frankfurt, Germany (L.M., S.M.); Institute of Biochemistry, Faculty of General Medicine, University of Szeged, Szeged, Hungary (L.M.); and Department I - Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (T.B.).
| | - Stefan Müller
- From the Institute of Biochemistry II, Goethe University, Medical School, Frankfurt, Germany (L.M., S.M.); Institute of Biochemistry, Faculty of General Medicine, University of Szeged, Szeged, Hungary (L.M.); and Department I - Cardiac Development and Remodelling, Max Planck Institute for Heart and Lung Research, Bad Nauheim, Germany (T.B.).
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Lee YJ, Bernstock JD, Nagaraja N, Ko B, Hallenbeck JM. Global SUMOylation facilitates the multimodal neuroprotection afforded by quercetin against the deleterious effects of oxygen/glucose deprivation and the restoration of oxygen/glucose. J Neurochem 2016; 138:101-16. [PMID: 27087120 DOI: 10.1111/jnc.13643] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 04/05/2016] [Accepted: 04/06/2016] [Indexed: 12/13/2022]
Abstract
The putative neuroprotective properties of various flavonoids have long been reported. Among this class of chemicals, quercetin, a major flavone/flavonol naturally occurring in plants, deserves focused attention because of the myriad of beneficial effects observed in various in vitro and in vivo models of central nervous system damage/degeneration. However, the mechanisms governing the beneficial outcomes mediated by quercetin remain to be elucidated. In an effort to define the underlying molecular mechanisms, our study employed human/rat neuroblastoma cell lines (SHSY5Y and B35, respectively) and E18-derived rat primary cortical neurons upon which the effects of various flavonoids were examined. Of note, increases in the levels of global SUMOylation, a post-translational modification with the Small Ubiquitin-like MOdifier (SUMO) were pronounced. Quercetin treatment increased SUMOylation levels in both SHSY5Y cells and rat cortical neurons in a dose and time-dependent manner, possibly via the direct inactivation of certain SENPs (SUMO-specific isopeptidases). Of particular interest, cells treated with quercetin displayed increased tolerance to oxygen/glucose deprivation exposure, an in vitro model of ischemia. SHSY5Y cells treated with quercetin also increased the expression of Nrf2 (via a decrease in the levels of Keap1), heme oxygenase-1 (HO-1), and nitric oxide synthase 1 (NOS1), which provide further protection from oxidative stress. In addition, the increased SUMOylation of HIF-1α was noted and deemed to be significant. We hypothesize that SUMOylated HIF-1α plays a fundamental role in the protection afforded and may underlie some of quercetin's ability to protect cells from oxygen/glucose deprivation-induced cell death, via an up-regulation of HO-1 and NOS1, which ultimately leads to the induction of pro-life NOS1/protein kinase G signaling. Quercetin acts to increase survival in the face of ischemia via an increase of SENP3 expression, the possible inactivation of SENPs 1/2, and via a decrease in KEAP1 levels (thereby increasing Nrf2 stability). These changes may then lead to increase in HIF-1α SUMOylation and HO-1 activation, followed by an up-regulation of NOS1/PKG signaling. Pathways altered via quercetin treatment within our experimental system are represented by blue arrowheads. Solid black arrows represent relationships that have been explored while a dotted arrow represents a relationship that has yet to be confirmed.
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Affiliation(s)
- Yang-Ja Lee
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, Maryland, USA
| | - Joshua D Bernstock
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, Maryland, USA
| | - Nandakumar Nagaraja
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, Maryland, USA
| | - Brian Ko
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, Maryland, USA
| | - John M Hallenbeck
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, Maryland, USA
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Bernstock JD, Lee YJ, Peruzzotti-Jametti L, Southall N, Johnson KR, Maric D, Volpe G, Kouznetsova J, Zheng W, Pluchino S, Hallenbeck JM. A novel quantitative high-throughput screen identifies drugs that both activate SUMO conjugation via the inhibition of microRNAs 182 and 183 and facilitate neuroprotection in a model of oxygen and glucose deprivation. J Cereb Blood Flow Metab 2016; 36:426-41. [PMID: 26661196 PMCID: PMC4759677 DOI: 10.1177/0271678x15609939] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 08/05/2015] [Accepted: 08/27/2015] [Indexed: 01/06/2023]
Abstract
The conjugation/de-conjugation of Small Ubiquitin-like Modifier (SUMO) has been shown to be associated with a diverse set of physiologic/pathologic conditions. The clinical significance and ostensible therapeutic utility offered via the selective control of the global SUMOylation process has become readily apparent in ischemic pathophysiology. Herein, we describe the development of a novel quantitative high-throughput screening (qHTS) system designed to identify small molecules capable of increasing SUMOylation via the regulation/inhibition of members of the microRNA (miRNA)-182 family. This assay employs a SHSY5Y human neuroblastoma cell line stably transfected with a dual firefly-Renilla luciferase reporter system for identification of specific inhibitors of either miR-182 or miR-183. In this study, we have identified small molecules capable of inducing increased global conjugation of SUMO in both SHSY5Y cells and rat E18-derived primary cortical neurons. The protective effects of a number of the identified compounds were confirmed via an in vitro ischemic model (oxygen/glucose deprivation). Of note, this assay can be easily repurposed to allow high-throughput analyses of the potential drugability of other relevant miRNA(s) in ischemic pathobiology.
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Affiliation(s)
- Joshua D Bernstock
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Yang-ja Lee
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
| | - Luca Peruzzotti-Jametti
- Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Noel Southall
- National Center for Advancing Translational Sciences, National Institutes of Health (NCATS/NIH), Bethesda, MD, USA
| | - Kory R Johnson
- Bioinformatics Section, Information Technology & Bioinformatics Program, Division of Intramural Research (DIR), (NINDS/NIH), Bethesda, MD, USA
| | - Dragan Maric
- Flow Cytometry Core Facility, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
| | - Giulio Volpe
- Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - Jennifer Kouznetsova
- National Center for Advancing Translational Sciences, National Institutes of Health (NCATS/NIH), Bethesda, MD, USA
| | - Wei Zheng
- National Center for Advancing Translational Sciences, National Institutes of Health (NCATS/NIH), Bethesda, MD, USA
| | - Stefano Pluchino
- Department of Clinical Neurosciences, Division of Stem Cell Neurobiology, Wellcome Trust-Medical Research Council Stem Cell Institute, University of Cambridge, Cambridge, UK
| | - John M Hallenbeck
- Stroke Branch, National Institute of Neurological Disorders and Stroke, National Institutes of Health (NINDS/NIH), Bethesda, MD, USA
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Seasonal and post-trauma remodeling in cone-dominant ground squirrel retina. Exp Eye Res 2016; 150:90-105. [PMID: 26808487 DOI: 10.1016/j.exer.2016.01.011] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2015] [Revised: 12/14/2015] [Accepted: 01/14/2016] [Indexed: 02/02/2023]
Abstract
With a photoreceptor mosaic containing ∼85% cones, the ground squirrel is one of the richest known mammalian sources of these important retinal cells. It also has a visual ecology much like the human's. While the ground squirrel retina is understandably prominent in the cone biochemistry, physiology, and circuitry literature, far less is known about the remodeling potential of its retinal pigment epithelium, neurons, macroglia, or microglia. This review aims to summarize the data from ground squirrel retina to this point in time, and to relate them to data from other brain areas where appropriate. We begin with a survey of the ground squirrel visual system, making comparisons with traditional rodent models and with human. Because this animal's status as a hibernator often goes unnoticed in the vision literature, we then present a brief primer on hibernation biology. Next we review what is known about ground squirrel retinal remodeling concurrent with deep torpor and with rapid recovery upon re-warming. Notable here is rapidly-reversible, temperature-dependent structural plasticity of cone ribbon synapses, as well as pre- and post-synaptic plasticity throughout diverse brain regions. It is not yet clear if retinal cell types other than cones engage in torpor-associated synaptic remodeling. We end with the small but intriguing literature on the ground squirrel retina's remodeling responses to insult by retinal detachment. Notable for widespread loss of (cone) photoreceptors, there is surprisingly little remodeling of the RPE or Müller cells. Microglial activation appears minimal, and remodeling of surviving second- and third-order neurons seems absent, but both require further study. In contrast, traumatic brain injury in the ground squirrel elicits typical macroglial and microglial responses. Overall, the data to date strongly suggest a heretofore unrecognized, natural checkpoint between retinal deafferentiation and RPE and Müller cell remodeling events. As we continue to discover them, the unique ways by which ground squirrel retina responds to hibernation or injury may be adaptable to therapeutic use.
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Zhang L, Storey KB, Yu DN, Hu Y, Zhang JY. The complete mitochondrial genome of Ictidomys tridecemlineatus (Rodentia: Sciuridae). Mitochondrial DNA A DNA Mapp Seq Anal 2015; 27:2608-9. [PMID: 26024127 DOI: 10.3109/19401736.2015.1041117] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The complete mitochondrial genome of the thirteen-lined ground squirrel, Ictidomys tridecemlineatus (Rodentia: Sciuridae) was sequenced to analyze the gene arrangement. It is a circular molecule of 16,458 bp in length including 37 genes typically found in other squirrels. The AT content of the overall base composition is 63.7% and the length of the control region is 1016 bp with 63.0% AT content. In BI and ML phylogenetic trees, I. tridecemlineatus is a sister clade to the genus Cynomys, and Tamias sibiricus is a sister clade to (Marmota himalayana + (I. tridecemlineatus + (C. leucurus + C. ludovicianus))). Ratufinae is well supported as the basal clade of Sciuridae. The monophyly of the family Sciuridae and its subfamilies Callosciurinae, Xerinae and Sciurinae are well supported.
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Affiliation(s)
- Leping Zhang
- a College of Chemistry and Life Science, Zhejiang Normal University , Jinhua , Zhejiang Province , China
| | - Kenneth B Storey
- b Department of Biology , Carleton University , Ottawa , Ontario , Canada , and
| | - Dan-Na Yu
- a College of Chemistry and Life Science, Zhejiang Normal University , Jinhua , Zhejiang Province , China .,c Institute of Ecology, Zhejiang Normal University , Jinhua , Zhejiang Province , China
| | - Yizhong Hu
- a College of Chemistry and Life Science, Zhejiang Normal University , Jinhua , Zhejiang Province , China
| | - Jia-Yong Zhang
- a College of Chemistry and Life Science, Zhejiang Normal University , Jinhua , Zhejiang Province , China .,c Institute of Ecology, Zhejiang Normal University , Jinhua , Zhejiang Province , China
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38
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Henley JM, Craig TJ, Wilkinson KA. Neuronal SUMOylation: mechanisms, physiology, and roles in neuronal dysfunction. Physiol Rev 2014; 94:1249-85. [PMID: 25287864 PMCID: PMC4187031 DOI: 10.1152/physrev.00008.2014] [Citation(s) in RCA: 135] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Protein SUMOylation is a critically important posttranslational protein modification that participates in nearly all aspects of cellular physiology. In the nearly 20 years since its discovery, SUMOylation has emerged as a major regulator of nuclear function, and more recently, it has become clear that SUMOylation has key roles in the regulation of protein trafficking and function outside of the nucleus. In neurons, SUMOylation participates in cellular processes ranging from neuronal differentiation and control of synapse formation to regulation of synaptic transmission and cell survival. It is a highly dynamic and usually transient modification that enhances or hinders interactions between proteins, and its consequences are extremely diverse. Hundreds of different proteins are SUMO substrates, and dysfunction of protein SUMOylation is implicated in a many different diseases. Here we briefly outline core aspects of the SUMO system and provide a detailed overview of the current understanding of the roles of SUMOylation in healthy and diseased neurons.
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Affiliation(s)
- Jeremy M Henley
- School of Biochemistry, University of Bristol, Bristol, United Kingdom
| | - Tim J Craig
- School of Biochemistry, University of Bristol, Bristol, United Kingdom
| | - Kevin A Wilkinson
- School of Biochemistry, University of Bristol, Bristol, United Kingdom
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39
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Blakeslee WW, Wysoczynski CL, Fritz KS, Nyborg JK, Churchill MEA, McKinsey TA. Class I HDAC inhibition stimulates cardiac protein SUMOylation through a post-translational mechanism. Cell Signal 2014; 26:2912-20. [PMID: 25220405 DOI: 10.1016/j.cellsig.2014.09.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 08/28/2014] [Accepted: 09/05/2014] [Indexed: 12/27/2022]
Abstract
Lysine residues are subject to a multitude of reversible post-translational modifications, including acetylation and SUMOylation. In the heart, enhancement of lysine acetylation or SUMOylation using histone deacetylase (HDAC) inhibitors or SUMO-1 gene transfer, respectively, has been shown to be cardioprotective. Here, we addressed whether there is crosstalk between lysine acetylation and SUMOylation in the heart. Treatment of cardiomyocytes and cardiac fibroblasts with pharmacological inhibitors of HDAC catalytic activity robustly increased conjugation of SUMO-1, but not SUMO-2/3, to several high molecular weight proteins in both cell types. The use of a battery of selective HDAC inhibitors and short hairpin RNAs demonstrated that HDAC2, which is a class I HDAC, is the primary HDAC isoform that controls cardiac protein SUMOylation. HDAC inhibitors stimulated protein SUMOylation in the absence of de novo gene transcription or protein synthesis, revealing a post-translational mechanism of HDAC inhibitor action. HDAC inhibition did not suppress the activity of de-SUMOylating enzymes, suggesting that increased protein SUMOylation in HDAC inhibitor-treated cells is due to stimulation of SUMO-1 conjugation rather than blockade of SUMO-1 cleavage. Consistent with this, multiple components of the SUMO conjugation machinery were capable of being acetylated in vitro. These findings reveal a novel role for reversible lysine acetylation in the control of SUMOylation in the heart, and suggest that cardioprotective actions of HDAC inhibitors are in part due to stimulation of protein SUMO-1-ylation in myocytes and fibroblasts.
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Affiliation(s)
- Weston W Blakeslee
- Department of Medicine, Division of Cardiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA; Department of Pharmacology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Christina L Wysoczynski
- Department of Pharmacology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Kristofer S Fritz
- Department of Pharmaceutical Sciences, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Jennifer K Nyborg
- Department of Biochemistry and Molecular Biology, Colorado State University, Fort Collins, CO, USA
| | - Mair E A Churchill
- Department of Pharmacology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA
| | - Timothy A McKinsey
- Department of Medicine, Division of Cardiology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA; Department of Pharmacology, University of Colorado Denver, Anschutz Medical Campus, Aurora, CO, USA.
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40
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Feligioni M, Mattson MP, Nisticò R. SUMOylation in neuroplasticity and neurological disorders. Neuromolecular Med 2014; 15:637-8. [PMID: 24354012 DOI: 10.1007/s12017-013-8267-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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41
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Meller CL, Meller R, Simons RP, Podrabsky JE. Patterns of ubiquitylation and SUMOylation associated with exposure to anoxia in embryos of the annual killifish Austrofundulus limnaeus. J Comp Physiol B 2013; 184:235-47. [PMID: 24337451 DOI: 10.1007/s00360-013-0791-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/06/2013] [Accepted: 11/18/2013] [Indexed: 10/25/2022]
Abstract
Embryos of the annual killifish Austrofundulus limnaeus acquire extreme tolerance to anoxia during embryonic development. These embryos can survive environmental and cellular conditions that would likely result in death in the majority of vertebrate cells, despite experiencing a massive loss of ATP. It is highly likely that the initial response to anoxia must quickly alter cellular physiology to reprogram cell signaling and metabolic pathways to support anaerobiosis. Covalent protein modifications are a mechanism that can quickly act to effect large-scale changes in protein structure and function and have been suggested by others to play a key role in mammalian ischemia tolerance. Using Western blot analysis, we explored patterns of protein ubiquitylation and SUMOylation in embryos of A. limnaeus exposed to anoxia and anoxic preconditioning. Surprisingly, we report stage-specific protein ubiquitylation patterns that suggest different mechanisms for altering protein turnover in dormant and actively developing embryos that both survive long-term anoxia. Anoxic preconditioning does not appear to alter levels of ubiquitin conjugates in a unique manner. Global SUMOylation of proteins does not change in response to anoxia, but there are stage-specific changes in SUMOylation of specific protein bands. Contrary to other systems, global changes in protein SUMOylation may not be required to support long-term tolerance to anoxia in embryos of A. limnaeus. These data lead us to conclude that embryos of A. limnaeus respond to anoxia in a unique manner compared to other vertebrate models of anoxia tolerance and may provide novel mechanisms for engineering vertebrate tissues to survive long-term anoxia.
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Affiliation(s)
- Camie L Meller
- Department of Biology, Portland State University, P.O. Box 751, Portland, OR, 97207, USA
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