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Emerson J, Delgado T, Hong M, Keillor JW, Johnson GVW. Stabilizing transglutaminase 2 in the open conformation results in reactive astrocytes being more neurosupportive. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.15.589192. [PMID: 38659783 PMCID: PMC11042235 DOI: 10.1101/2024.04.15.589192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Astrocytes play critical roles in supporting structural and metabolic homeostasis in the central nervous system (CNS). Inflammatory conditions bring about a range of poorly understood, heterogeneous, reactive phenotypes in astrocytes. Finding ways to manipulate the phenotype of reactive astrocytes, and leveraging a pro-recovery phenotype, holds promise in treating CNS injury. Previous studies have shown that the protein transglutaminase 2 (TG2) plays a significant role in determining the phenotype of reactive astrocytes. Recently it has been demonstrated that ablation of TG2 from astrocytes improves injury outcomes both in vitro and in vivo. Excitingly, in an in vivo mouse model, pharmacological inhibition of TG2 with the irreversible inhibitor VA4 phenocopies the neurosupportive effects of TG2 deletion in astrocytes. The focus of this study was to provide insights into the mechanisms by which TG2 deletion or inhibition of TG2 with VA4 result in a more neurosupportive astrocytic phenotype. Using a neuron-astrocyte co-culture model of neurite outgrowth, we show that VA4 treatment improves the ability of astrocytes to support neurite outgrowth on an injury-relevant matrix, further validating the ability of VA4 to phenocopy astrocytic TG2 deletion. VA4 treatment of neurons alone had no effect on neurite outgrowth. VA4 covalently binds to active site residues of TG2 that are exposed in its open conformation and are critical for its enzymatic function, and prevents TG2 from taking on a closed conformation, which interferes with its protein scaffolding function. To begin to understand how pharmacologically altering TG2's conformation affects its ability to regulate reactive astrocyte phenotypes, we assayed the impact of VA4 on TG2's interaction with Zbtb7a, a transcription factor that we have previously identified as a TG2 interactor, and whose functional outputs are significantly regulated by TG2. The results of these studies demonstrated that VA4 significantly decreases the interaction of TG2 and Zbtb7a. Further, previous findings indicate that TG2 may act as an epigenetic regulator, through its nuclear protein-protein interactions, to modulate gene expression. Since both TG2 and Zbtb7a interact with members of the Sin3a chromatin repressor complex, we assayed the effect of TG2 deletion and VA4 treatment on histone acetylation and found significantly greater acetylation with TG2 deletion or inhibition with VA4. Overall, this work points toward a possible epigenetic mechanism by which genetic deletion or acute inhibition of TG2 leads to enhanced astrocytic support of neurons.
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Affiliation(s)
- Jacen Emerson
- 601 Elmwood Ave, box 604, Department of Anesthesiology and Perioperative Medicine, University of Rochester, Rochester, NY, 14620, USA
| | - Thomas Delgado
- 601 Elmwood Ave, box 604, Department of Anesthesiology and Perioperative Medicine, University of Rochester, Rochester, NY, 14620, USA
| | - Matthew Hong
- 601 Elmwood Ave, box 604, Department of Anesthesiology and Perioperative Medicine, University of Rochester, Rochester, NY, 14620, USA
| | - Jeffrey W. Keillor
- Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, ON K1N6N5, Canada
| | - Gail VW Johnson
- 601 Elmwood Ave, box 604, Department of Anesthesiology and Perioperative Medicine, University of Rochester, Rochester, NY, 14620, USA
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2
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Buccarelli M, Castellani G, Fiorentino V, Pizzimenti C, Beninati S, Ricci-Vitiani L, Scattoni ML, Mischiati C, Facchiano F, Tabolacci C. Biological Implications and Functional Significance of Transglutaminase Type 2 in Nervous System Tumors. Cells 2024; 13:667. [PMID: 38667282 PMCID: PMC11048792 DOI: 10.3390/cells13080667] [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: 01/31/2024] [Revised: 04/04/2024] [Accepted: 04/09/2024] [Indexed: 04/28/2024] Open
Abstract
Transglutaminase type 2 (TG2) is the most ubiquitously expressed member of the transglutaminase family. TG2 catalyzes the transamidation reaction leading to several protein post-translational modifications and it is also implicated in signal transduction thanks to its GTP binding/hydrolyzing activity. In the nervous system, TG2 regulates multiple physiological processes, such as development, neuronal cell death and differentiation, and synaptic plasticity. Given its different enzymatic activities, aberrant expression or activity of TG2 can contribute to tumorigenesis, including in peripheral and central nervous system tumors. Indeed, TG2 dysregulation has been reported in meningiomas, medulloblastomas, neuroblastomas, glioblastomas, and other adult-type diffuse gliomas. The aim of this review is to provide an overview of the biological and functional relevance of TG2 in the pathogenesis of nervous system tumors, highlighting its involvement in survival, tumor inflammation, differentiation, and in the resistance to standard therapies.
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Affiliation(s)
- Mariachiara Buccarelli
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (M.B.); (G.C.); (L.R.-V.); (F.F.)
| | - Giorgia Castellani
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (M.B.); (G.C.); (L.R.-V.); (F.F.)
| | - Vincenzo Fiorentino
- Department of Human Pathology in Adult and Developmental Age “Gaetano Barresi”, University of Messina, 98125 Messina, Italy;
| | - Cristina Pizzimenti
- Department of Biomedical, Dental, Morphological and Functional Imaging Sciences, University of Messina, 98125 Messina, Italy;
| | - Simone Beninati
- Department of Biology, University of Rome “Tor Vergata”, 00133 Rome, Italy;
| | - Lucia Ricci-Vitiani
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (M.B.); (G.C.); (L.R.-V.); (F.F.)
| | - Maria Luisa Scattoni
- Research Coordination and Support Service, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy;
| | - Carlo Mischiati
- Department of Neuroscience and Rehabilitation, University of Ferrara, 44121 Ferrara, Italy;
| | - Francesco Facchiano
- Department of Oncology and Molecular Medicine, Istituto Superiore di Sanità, 00161 Rome, Italy; (M.B.); (G.C.); (L.R.-V.); (F.F.)
| | - Claudio Tabolacci
- Research Coordination and Support Service, Istituto Superiore di Sanità, Viale Regina Elena 299, 00161 Rome, Italy;
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3
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Zhang X, Zhang Y, Su Q, Liu Y, Li Z, Yong VW, Xue M. Ion Channel Dysregulation Following Intracerebral Hemorrhage. Neurosci Bull 2024; 40:401-414. [PMID: 37755675 PMCID: PMC10912428 DOI: 10.1007/s12264-023-01118-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Accepted: 06/14/2023] [Indexed: 09/28/2023] Open
Abstract
Injury to the brain after intracerebral hemorrhage (ICH) results from numerous complex cellular mechanisms. At present, effective therapy for ICH is limited and a better understanding of the mechanisms of brain injury is necessary to improve prognosis. There is increasing evidence that ion channel dysregulation occurs at multiple stages in primary and secondary brain injury following ICH. Ion channels such as TWIK-related K+ channel 1, sulfonylurea 1 transient receptor potential melastatin 4 and glutamate-gated channels affect ion homeostasis in ICH. They in turn participate in the formation of brain edema, disruption of the blood-brain barrier, and the generation of neurotoxicity. In this review, we summarize the interaction between ions and ion channels, the effects of ion channel dysregulation, and we discuss some therapeutics based on ion-channel modulation following ICH.
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Affiliation(s)
- Xiangyu Zhang
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - Yan Zhang
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - Qiuyang Su
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - Yang Liu
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - Zhe Li
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China
| | - V Wee Yong
- Hotchkiss Brain Institute and Department of Clinical Neurosciences, University of Calgary, Calgary, AB, T2N 1N4, Canada.
| | - Mengzhou Xue
- Department of Cerebrovascular Diseases, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, 450000, China.
- Academy of Medical Science, Zhengzhou University, Zhengzhou, 450000, China.
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4
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Liu J, Mouradian MM. Pathogenetic Contributions and Therapeutic Implications of Transglutaminase 2 in Neurodegenerative Diseases. Int J Mol Sci 2024; 25:2364. [PMID: 38397040 PMCID: PMC10888553 DOI: 10.3390/ijms25042364] [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: 12/29/2023] [Revised: 02/07/2024] [Accepted: 02/13/2024] [Indexed: 02/25/2024] Open
Abstract
Neurodegenerative diseases encompass a heterogeneous group of disorders that afflict millions of people worldwide. Characteristic protein aggregates are histopathological hallmark features of these disorders, including Amyloid β (Aβ)-containing plaques and tau-containing neurofibrillary tangles in Alzheimer's disease, α-Synuclein (α-Syn)-containing Lewy bodies and Lewy neurites in Parkinson's disease and dementia with Lewy bodies, and mutant huntingtin (mHTT) in nuclear inclusions in Huntington's disease. These various aggregates are found in specific brain regions that are impacted by neurodegeneration and associated with clinical manifestations. Transglutaminase (TG2) (also known as tissue transglutaminase) is the most ubiquitously expressed member of the transglutaminase family with protein crosslinking activity. To date, Aβ, tau, α-Syn, and mHTT have been determined to be substrates of TG2, leading to their aggregation and implicating the involvement of TG2 in several pathophysiological events in neurodegenerative disorders. In this review, we summarize the biochemistry and physiologic functions of TG2 and describe recent advances in the pathogenetic role of TG2 in these diseases. We also review TG2 inhibitors tested in clinical trials and discuss recent TG2-targeting approaches, which offer new perspectives for the design of future highly potent and selective drugs with improved brain delivery as a disease-modifying treatment for neurodegenerative disorders.
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Affiliation(s)
| | - M. Maral Mouradian
- RWJMS Institute for Neurological Therapeutics and Department of Neurology, Rutgers-Robert Wood Johnson Medical School, Piscataway, NJ 08854, USA;
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Blumenreich S, Ben-Yashar DP, Shalit T, Kupervaser M, Milenkovic I, Joseph T, Futerman AH. Proteomics analysis of the brain from a Gaucher disease mouse identifies pathological pathways including a possible role for transglutaminase 1. J Neurochem 2024; 168:52-65. [PMID: 38071490 DOI: 10.1111/jnc.16024] [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: 06/06/2023] [Revised: 10/22/2023] [Accepted: 11/14/2023] [Indexed: 12/30/2023]
Abstract
Gaucher disease (GD) is a lysosomal storage disorder (LSD) caused by the defective activity of acid β-glucosidase (GCase) which results from mutations in GBA1. Neurological forms of GD (nGD) can be generated in mice by intra-peritoneal injection of conduritol B-epoxide (CBE) which irreversibly inhibits GCase. Using this approach, a number of pathological pathways have been identified in mouse brain by RNAseq. However, unlike transcriptomics, proteomics gives direct information about protein expression which is more likely to provide insight into which cellular pathways are impacted in disease. We now perform non-targeted, mass spectrometry-based quantitative proteomics on brains from mice injected with 50 mg/kg body weight CBE for 13 days. Of the 5038 detected proteins, 472 were differentially expressed between control and CBE-injected mice of which 104 were selected for further analysis based on higher stringency criteria. We also compared these proteins with differentially expressed genes (DEGs) identified by RNAseq. Some lysosomal proteins were up-regulated as was interferon signaling, whereas levels of ion channel related proteins and some proteins associated with neurotransmitter signaling were reduced, as was cholesterol metabolism. One protein, transglutaminase 1 (TGM1), which is elevated in a number of neurodegenerative diseases, was absent from the control group but was found at high levels in CBE-injected mice, and located in the extracellular matrix (ECM) in layer V of the cortex and intracellularly in Purkinje cells in the cerebellum. Together, the proteomics data confirm previous RNAseq data and add additional mechanistic understanding about cellular pathways that may play a role in nGD pathology.
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Affiliation(s)
- Shani Blumenreich
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | | | - Tali Shalit
- The Mantoux Bioinformatics Institute and the Weizmann Institute of Science, Rehovot, Israel
| | - Meital Kupervaser
- De Botton Protein Profiling Institute of the Nancy and Stephen Grand Israel National Center for Personalized Medicine, Weizmann Institute of Science, Rehovot, Israel
| | - Ivan Milenkovic
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
- Department of Neurology, Medical University of Vienna, Vienna, Austria
| | - Tammar Joseph
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
| | - Anthony H Futerman
- Department of Biomolecular Sciences, Weizmann Institute of Science, Rehovot, Israel
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6
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Transglutaminase 3 attenuates skin inflammation in psoriasis by inhibiting NF-κB activation via p-STAT3–TET3 signaling. J Invest Dermatol 2022; 142:2968-2977.e10. [DOI: 10.1016/j.jid.2022.03.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 03/05/2022] [Accepted: 03/08/2022] [Indexed: 11/17/2022]
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7
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Xun Z, Wipf P, McMurray CT. XJB-5-131 Is a Mild Uncoupler of Oxidative Phosphorylation. J Huntingtons Dis 2022; 11:141-151. [PMID: 35404288 PMCID: PMC9798833 DOI: 10.3233/jhd-220539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Mitochondria (MT) are energy "powerhouses" of the cell and the decline in their function from oxidative damage is strongly correlated in many diseases. To suppress oxygen damage, we have developed and applied XJB-5-131 as a targeted platform for neutralizing reactive oxygen species (ROS) directly in MT. Although the beneficial activity of XJB-5-131 is well documented, the mechanism of its protective effects is not yet fully understood. OBJECTIVE Here, we elucidate the mechanism of protection for XJB-5-131, a mitochondrial targeted antioxidant and electron scavenger. METHODS The Seahorse Flux Analyzer was used to probe the respiratory states of isolated mouse brain mitochondria treated with XJB-5-131 compared to controls. RESULTS Surprisingly, there is no direct impact of XJB-5-131 radical scavenger on the electron flow through the electron transport chain. Rather, XJB-5-131 is a mild uncoupler of oxidative phosphorylation. The nitroxide moiety in XJB-5-131 acts as a superoxide dismutase mimic, which both extracts or donates electrons during redox reactions. The electron scavenging activity of XJB-5-131 prevents the leakage of electrons and reduces formation of superoxide anion, thereby reducing ROS. CONCLUSION We show here that XJB-5-131 is a mild uncoupler of oxidative phosphorylation in MT. The mild uncoupling property of XJB-5-131 arises from its redox properties, which exert a protective effect by reducing ROS-induced damage without sacrificing energy production. Because mitochondrial decline is a common and central feature of toxicity, the favorable properties of XJB-5-131 are likely to be useful in treating Huntington's disease and a wide spectrum of neurodegenerative diseases for which oxidative damage is a key component. The mild uncoupling properties of XJB-5-131 suggest a valuable mechanism of action for the design of clinically effective antioxidants.
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Affiliation(s)
- Zhiyin Xun
- Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA
| | - Peter Wipf
- Department of Chemistry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Cynthia T. McMurray
- Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA, USA,Correspondence to: Cynthia T. McMurray, Molecular Biophysics and Integrated Bioimaging, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. Tel.: +1 510 486 6526; Fax: +1 510 486 6880;
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8
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Marsili L, Sharma J, Espay AJ, Migazzi A, Abdelghany E, Hill EJ, Duque KR, Hagen MC, Stephen CD, Kovacs GG, Lang AE, Hadjivassiliou M, Basso M, Kauffman MA, Sturchio A. Neither a Novel Tau Proteinopathy nor an Expansion of a Phenotype: Reappraising Clinicopathology-Based Nosology. Int J Mol Sci 2021; 22:ijms22147292. [PMID: 34298918 PMCID: PMC8329925 DOI: 10.3390/ijms22147292] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Revised: 07/01/2021] [Accepted: 07/05/2021] [Indexed: 01/10/2023] Open
Abstract
The gold standard for classification of neurodegenerative diseases is postmortem histopathology; however, the diagnostic odyssey of this case challenges such a clinicopathologic model. We evaluated a 60-year-old woman with a 7-year history of a progressive dystonia–ataxia syndrome with supranuclear gaze palsy, suspected to represent Niemann–Pick disease Type C. Postmortem evaluation unexpectedly demonstrated neurodegeneration with 4-repeat tau deposition in a distribution diagnostic of progressive supranuclear palsy (PSP). Whole-exome sequencing revealed a new heterozygous variant in TGM6, associated with spinocerebellar ataxia type 35 (SCA35). This novel TGM6 variant reduced transglutaminase activity in vitro, suggesting it was pathogenic. This case could be interpreted as expanding: (1) the PSP phenotype to include a spinocerebellar variant; (2) SCA35 as a tau proteinopathy; or (3) TGM6 as a novel genetic variant underlying a SCA35 phenotype with PSP pathology. None of these interpretations seem adequate. We instead hypothesize that impairment in the crosslinking of tau by the TGM6-encoded transglutaminase enzyme may compromise tau functionally and structurally, leading to its aggregation in a pattern currently classified as PSP. The lessons from this case study encourage a reassessment of our clinicopathology-based nosology.
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Affiliation(s)
- Luca Marsili
- Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH 45219, USA; (J.S.); (A.J.E.); (E.A.); (E.J.H.); (K.R.D.); (A.S.)
- Correspondence: ; Tel.: +1-(513)558-4050
| | - Jennifer Sharma
- Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH 45219, USA; (J.S.); (A.J.E.); (E.A.); (E.J.H.); (K.R.D.); (A.S.)
| | - Alberto J. Espay
- Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH 45219, USA; (J.S.); (A.J.E.); (E.A.); (E.J.H.); (K.R.D.); (A.S.)
| | - Alice Migazzi
- Laboratory of Transcriptional Neurobiology, Department of Cellular, Computational and Integrative Biology—CIBIO, University of Trento, 38123 Trento, Italy; (A.M.); (M.B.)
| | - Elhusseini Abdelghany
- Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH 45219, USA; (J.S.); (A.J.E.); (E.A.); (E.J.H.); (K.R.D.); (A.S.)
| | - Emily J. Hill
- Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH 45219, USA; (J.S.); (A.J.E.); (E.A.); (E.J.H.); (K.R.D.); (A.S.)
| | - Kevin R. Duque
- Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH 45219, USA; (J.S.); (A.J.E.); (E.A.); (E.J.H.); (K.R.D.); (A.S.)
| | - Matthew C. Hagen
- Department of Pathology, University of Cincinnati, Cincinnati, OH 45219, USA;
| | - Christopher D. Stephen
- Ataxia Center, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA 02114, USA;
| | - Gabor G. Kovacs
- Tanz Centre for Research in Neurodegenerative Disease (CRND), Department of Laboratory Medicine and Pathobiology, University of Toronto, 60 Leonard Ave, Krembil Discovery Tower, Toronto, ON M5T 0S8, Canada;
- Laboratory Medicine Program and Krembil Brain Institute, University Health Network, Toronto, ON M5T 1M8, Canada
- Edmond J. Safra Program in Parkinson’s Disease, Rossy Progressive Supranuclear Palsy Program and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University of Toronto, Toronto, ON M5T 2S8, Canada;
| | - Anthony E. Lang
- Edmond J. Safra Program in Parkinson’s Disease, Rossy Progressive Supranuclear Palsy Program and the Morton and Gloria Shulman Movement Disorders Clinic, Toronto Western Hospital, University of Toronto, Toronto, ON M5T 2S8, Canada;
| | - Marios Hadjivassiliou
- Academic Department of Neurosciences, Royal Hallamshire Hospital, University of Sheffield, Sheffield S10 2JF, UK;
| | - Manuela Basso
- Laboratory of Transcriptional Neurobiology, Department of Cellular, Computational and Integrative Biology—CIBIO, University of Trento, 38123 Trento, Italy; (A.M.); (M.B.)
| | - Marcelo A. Kauffman
- Consultorio y Laboratorio de Neurogenética, Centro Universitario de Neurología José María Ramos Mejía, Buenos Aires C1221ADC, Argentina;
| | - Andrea Sturchio
- Gardner Family Center for Parkinson’s Disease and Movement Disorders, Department of Neurology and Rehabilitation Medicine, University of Cincinnati, Cincinnati, OH 45219, USA; (J.S.); (A.J.E.); (E.A.); (E.J.H.); (K.R.D.); (A.S.)
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Wodtke R, Wodtke J, Hauser S, Laube M, Bauer D, Rothe R, Neuber C, Pietsch M, Kopka K, Pietzsch J, Löser R. Development of an 18F-Labeled Irreversible Inhibitor of Transglutaminase 2 as Radiometric Tool for Quantitative Expression Profiling in Cells and Tissues. J Med Chem 2021; 64:3462-3478. [PMID: 33705656 DOI: 10.1021/acs.jmedchem.1c00096] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The transamidase activity of transglutaminase 2 (TGase 2) is considered to be important for several pathophysiological processes including fibrotic and neoplastic tissue growth, whereas in healthy cells this enzymatic function is predominantly latent. Methods that enable the highly sensitive detection of TGase 2, such as application of radiolabeled activity-based probes, will support the exploration of the enzyme's function in various diseases. In this context, the radiosynthesis and detailed in vitro radiopharmacological evaluation of an 18F-labeled Nε-acryloyllysine piperazide are reported. Robust and facile detection of the radiotracer-TGase 2 complex by autoradiography of thin layer plates and polyacrylamide gels after chromatographic and electrophoretic separation owing to irreversible covalent bond formation was demonstrated for the isolated protein, cell lysates, and living cells. By use of this radiotracer, quantitative data on the expression profile of activatable TGase 2 in mouse organs and selected tumors were obtained for the first time by autoradiography of tissue sections.
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Affiliation(s)
- Robert Wodtke
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Johanna Wodtke
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Sandra Hauser
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Markus Laube
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - David Bauer
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany.,Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Mommsenstraße 4, 01062 Dresden, Germany
| | - Rebecca Rothe
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany.,Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Mommsenstraße 4, 01062 Dresden, Germany
| | - Christin Neuber
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany
| | - Markus Pietsch
- Institut II für Pharmakologie, Zentrum für Pharmakologie, Medizinische Fakultät, Universität zu Köln, Gleueler Straße 24, 50931 Köln, Germany
| | - Klaus Kopka
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany.,Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Mommsenstraße 4, 01062 Dresden, Germany
| | - Jens Pietzsch
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany.,Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Mommsenstraße 4, 01062 Dresden, Germany
| | - Reik Löser
- Institut für Radiopharmazeutische Krebsforschung, Helmholtz-Zentrum Dresden-Rossendorf, Bautzner Landstraße 400, 01328 Dresden, Germany.,Fakultät Chemie und Lebensmittelchemie, Technische Universität Dresden, Mommsenstraße 4, 01062 Dresden, Germany
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10
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Rroji O, Kumar A, Karuppagounder SS, Ratan RR. Epigenetic regulators of neuronal ferroptosis identify novel therapeutics for neurological diseases: HDACs, transglutaminases, and HIF prolyl hydroxylases. Neurobiol Dis 2020; 147:105145. [PMID: 33127469 DOI: 10.1016/j.nbd.2020.105145] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 10/20/2020] [Accepted: 10/23/2020] [Indexed: 12/16/2022] Open
Abstract
A major thrust of our laboratory has been to identify how physiological stress is transduced into transcriptional responses that feed back to overcome the inciting stress or its consequences, thereby fostering survival and repair. To this end, we have adopted the use of an in vitro model of ferroptosis, a caspase-independent, but iron-dependent form of cell death (Dixon et al., 2012; Ratan, 2020). In this review, we highlight three distinct epigenetic targets that have evolved from our studies and which have been validated in vivo studies. In the first section, we discuss our studies of broad, pan-selective histone deacetylase (HDAC) inhibitors in ferroptosis and how these studies led to the validation of HDAC inhibitors as candidate therapeutics in a host of disease models. In the second section, we discuss our studies that revealed a role for transglutaminase as an epigenetic modulator of proferroptotic pathways and how these studies set the stage for recent elucidation of monoamines as post-translation modifiers of histone function. In the final section, we discuss our studies of iron-, 2-oxoglutarate-, and oxygen-dependent dioxygenases and the role of one family of these enzymes, the HIF prolyl hydroxylases, in mediating transcriptional events necessary for ferroptosis in vitro and for dysfunction in a host of neurological conditions. Overall, our studies highlight the importance of epigenetic proteins in mediating prodeath and prosurvival responses to ferroptosis. Pharmacological agents that target these epigenetic proteins are showing robust beneficial effects in diverse rodent models of stroke, Parkinson's disease, Huntington's disease, and Alzheimer's disease.
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Affiliation(s)
- Orjon Rroji
- Burke Neurological Institute, 785 Mamaroneck Avenue, White Plains, NY 10605, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 E 61st Street, New York, NY 10065, USA
| | - Amit Kumar
- Burke Neurological Institute, 785 Mamaroneck Avenue, White Plains, NY 10605, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 E 61st Street, New York, NY 10065, USA
| | - Saravanan S Karuppagounder
- Burke Neurological Institute, 785 Mamaroneck Avenue, White Plains, NY 10605, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 E 61st Street, New York, NY 10065, USA
| | - Rajiv R Ratan
- Burke Neurological Institute, 785 Mamaroneck Avenue, White Plains, NY 10605, USA; Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 E 61st Street, New York, NY 10065, USA.
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11
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Wang M, Gui X, Wu L, Tian S, Wang H, Xie L, Wu W. Amino acid metabolism, lipid metabolism, and oxidative stress are associated with post-stroke depression: a metabonomics study. BMC Neurol 2020; 20:250. [PMID: 32563250 PMCID: PMC7305607 DOI: 10.1186/s12883-020-01780-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Accepted: 05/12/2020] [Indexed: 01/23/2023] Open
Abstract
Background Post-stroke depression (PSD) is a mood disorder characterized by depression and anhedonia caused by stroke. Metabolomics identified metabolites associated with PSD, but previous studies are based on gas chromatography (GC)/mass spectrometry (MS). This study aimed to perform a liquid chromatography (LC)-MS-based metabolomics study of the plasma metabolite profiles between patients with PSD and controls. Methods This was a prospective study of patients with stroke enrolled between July and December 2017 at the Second Affiliated Hospital of Nanchang University. Patients were grouped as Hamilton Depression Rating Scale > 7 (PSD) or < 7 (controls). Metabonomics profiling of plasma sampled was conducted by LC-MS. By combining multivariable and univariable statistical analyses, significant differential metabolites between the two groups were screened. The threshold for significant differences was VIP ≥1 and P < 0.05. Log2FC is the logarithm of the mean ratio between the two groups. Results There were no significant difference with respect to age, NIHSS score, and MMSE between the two groups (all P > 0.05). There were six differential metabolites between the PSD and stroke groups, of which three metabolites were increased and three were decreased. Compared with the control group, p-chlorophenylalanine (Log2FC = 1.37, P = 0.03), phenylacetyl glutamine (Log2FC = 0.21, P = 0.048), and DHA (Log2FC = 0.77, P = 0.01) levels were higher in the PSD group, while betaine (trimethylglycine) (Log2FC = − 0.79, P = 0.04), palmitic acid (Log2FC = − 0.51, P = 0.001), and MHPG-SO4 (Log2FC = − 2.37, P = 0.045) were decreased. Conclusion Plasma metabolomics showed that amino acid metabolism (phenylacetyl glutamine, p-chlorophenylalanine, trimethylglycine), lipid metabolism (DHA, palmitic acid, trimethylglycine), and oxidative stress (DHA, palmitic acid, trimethylglycine) were associated with PSD. These results could help to reveal the pathophysiological mechanism of PSD and eventually identify treatment targets.
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Affiliation(s)
- Man Wang
- Department of Neurology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xianwei Gui
- Department of Neurology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Lanxiang Wu
- Department of Neurology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Sheng Tian
- Department of Neurology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Hansen Wang
- Department of Neurology, the Second Affiliated Hospital of Nanchang University, Nanchang, China
| | - Liang Xie
- Department of Neurology, the Second Affiliated Hospital of Nanchang University, Nanchang, China.
| | - Wei Wu
- Department of Neurology, the Second Affiliated Hospital of Nanchang University, Nanchang, China.
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12
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Ratan RR. The Chemical Biology of Ferroptosis in the Central Nervous System. Cell Chem Biol 2020; 27:479-498. [PMID: 32243811 DOI: 10.1016/j.chembiol.2020.03.007] [Citation(s) in RCA: 93] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 02/04/2020] [Accepted: 03/09/2020] [Indexed: 12/11/2022]
Abstract
Over the past five decades, thanatology has come to include the study of how individual cells in our bodies die appropriately and inappropriately in response to physiological and pathological stimuli. Morphological and biochemical criteria have been painstakingly established to create clarity around definitions of distinct types of cell death and mechanisms for their activation. Among these, ferroptosis has emerged as a unique, oxidative stress-induced cell death pathway with implications for diseases as diverse as traumatic brain injury, hemorrhagic stroke, Alzheimer's disease, cancer, renal ischemia, and heat stress in plants. In this review, I highlight some of the formative studies that fostered its recognition in the nervous system and describe how chemical biological tools have been essential in defining events necessary for its execution. Finally, I discuss emerging opportunities for antiferroptotic agents as therapeutic agents in neurological diseases.
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Affiliation(s)
- Rajiv R Ratan
- Burke Neurological Institute at Weill Cornell Medicine, 785 Mamaroneck Avenue, White Plains, NY 10605, USA.
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13
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Tripathy D, Migazzi A, Costa F, Roncador A, Gatto P, Fusco F, Boeri L, Albani D, Juárez-Hernández JL, Musio C, Colombo L, Salmona M, Wilhelmus MMM, Drukarch B, Pennuto M, Basso M. Increased transcription of transglutaminase 1 mediates neuronal death in in vitro models of neuronal stress and Aβ1-42-mediated toxicity. Neurobiol Dis 2020; 140:104849. [PMID: 32222473 DOI: 10.1016/j.nbd.2020.104849] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/01/2020] [Accepted: 03/24/2020] [Indexed: 12/18/2022] Open
Abstract
Alzheimer's disease (AD) is the most common cause of dementia. At the pre-symptomatic phase of the disease, the processing of the amyloid precursor protein (APP) produces toxic peptides, called amyloid-β 1-42 (Aβ 1-42). The downstream effects of Aβ 1-42 production are not completely uncovered. Here, we report the involvement of transglutaminase 1 (TG1) in in vitro AD models of neuronal toxicity. TG1 was increased at late stages of the disease in the hippocampus of a mouse model of AD and in primary cortical neurons undergoing stress. Silencing of TGM1 gene was sufficient to prevent Aβ-mediated neuronal death. Conversely, its overexpression enhanced cell death. TGM1 upregulation was mediated at the transcriptional level by an activator protein 1 (AP1) binding site that when mutated halted TGM1 promoter activation. These results indicate that TG1 acts downstream of Aβ-toxicity, and that its stress-dependent increase makes it suitable for pharmacological intervention.
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Affiliation(s)
- Debasmita Tripathy
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Trento, TN, Italy
| | - Alice Migazzi
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Trento, TN, Italy
| | - Federica Costa
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Trento, TN, Italy
| | - Alessandro Roncador
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Trento, TN, Italy
| | - Pamela Gatto
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Trento, TN, Italy
| | - Federica Fusco
- Department of Neuroscience, Laboratory of Genetics of Neurodegenerative Disorders, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Lucia Boeri
- Department of Chemistry, Materials and Chemical Engineering "G. Natta", Politecnico di Milano, Milan, Italy
| | - Diego Albani
- Department of Neuroscience, Laboratory of Genetics of Neurodegenerative Disorders, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - J Leon Juárez-Hernández
- Institute of Biophysics, Trento Unit, National Research Council (IBF-CNR), Bruno Kessler Foundation (FBK), LabSSAH, Via alla Cascata 56/C, 38123 Trento, Italy
| | - Carlo Musio
- Institute of Biophysics, Trento Unit, National Research Council (IBF-CNR), Bruno Kessler Foundation (FBK), LabSSAH, Via alla Cascata 56/C, 38123 Trento, Italy
| | - Laura Colombo
- Department of Molecular Biochemistry and Pharmacology, Laboratory of Biochemistry and Protein Chemistry, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - Mario Salmona
- Department of Molecular Biochemistry and Pharmacology, Laboratory of Biochemistry and Protein Chemistry, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milano, Italy
| | - M M Micha Wilhelmus
- VU University Medical Center, Neuroscience Campus Amsterdam, Department of Anatomy and Neurosciences, Amsterdam, the Netherlands
| | - Benjamin Drukarch
- VU University Medical Center, Neuroscience Campus Amsterdam, Department of Anatomy and Neurosciences, Amsterdam, the Netherlands
| | - Maria Pennuto
- Dulbecco Telethon Institute Lab of Neurodegenerative Diseases, Centre for Integrative Biology (CIBIO), University of Trento, Italy; Department of Biomedical sciences, via Ugo Bassi 58/B, University of Padova, 35131 Padova, Italy; Padova Neuroscience Center, 35100 Padova, Italy
| | - Manuela Basso
- Department of Cellular, Computational and Integrative Biology - CIBIO, University of Trento, Trento, TN, Italy.
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14
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Transglutaminases, neuronal cell death and neural repair: implications for traumatic brain injury and therapeutics. Curr Opin Neurol 2019; 32:796-801. [DOI: 10.1097/wco.0000000000000753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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Franich NR, Basso M, André EA, Ochaba J, Kumar A, Thein S, Fote G, Kachemov M, Lau AL, Yeung SY, Osmand A, Zeitlin SO, Ratan RR, Thompson LM, Steffan JS. Striatal Mutant Huntingtin Protein Levels Decline with Age in Homozygous Huntington's Disease Knock-In Mouse Models. J Huntingtons Dis 2019; 7:137-150. [PMID: 29843246 PMCID: PMC6002862 DOI: 10.3233/jhd-170274] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Background: Huntington’s disease (HD) is a progressive neurodegenerative disorder associated with aging, caused by an expanded polyglutamine (polyQ) repeat within the Huntingtin (HTT) protein. In HD, degeneration of the striatum and atrophy of the cortex are observed while cerebellum is less affected. Objective: To test the hypothesis that HTT protein levels decline with age, which together with HTT mutation could influence disease progression. Methods: Using whole brain cell lysates, a unique method of SDS-PAGE and western analysis was used to quantitate HTT protein, which resolves as a monomer and as a high molecular weight species that is modulated by the presence of transglutaminase 2. HTT levels were measured in striatum, cortex and cerebellum in congenic homozygous Q140 and HdhQ150 knock-in mice and WT littermate controls. Results: Mutant HTT in both homozygous knock-in HD mouse models and WT HTT in control striatal and cortical tissues significantly declined in a progressive manner over time. Levels of mutant HTT in HD cerebellum remained high during aging. Conclusions: A general decline in mutant HTT levels in striatum and cortex is observed that may contribute to disease progression in homozygous knock-in HD mouse models through reduction of HTT function. In cerebellum, sustained levels of mutant HTT with aging may be protective to this tissue which is less overtly affected in HD.
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Affiliation(s)
- Nicholas R Franich
- Department of Neurology, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Manuela Basso
- Centre for Integrative Biology, University of Trento, Trento, Italy
| | - Emily A André
- Department of Neuroscience, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Joseph Ochaba
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, USA
| | - Amit Kumar
- Burke Medical Research Institute, White Plains, NY, USA.,Brain and Mind Research Institute, Weill Medical College of Cornell University, New York, NY, USA.,Department of Neurology, Weill Medical College of Cornell University, New York, NY, USA
| | - Soe Thein
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Gianna Fote
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Marketta Kachemov
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, USA
| | - Alice L Lau
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Sylvia Y Yeung
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA
| | - Alexander Osmand
- Department of Biochemistry and Cellular and Molecular Biology, University of Tennessee, Knoxville, TN, USA
| | - Scott O Zeitlin
- Department of Neuroscience, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Rajiv R Ratan
- Burke Medical Research Institute, White Plains, NY, USA.,Brain and Mind Research Institute, Weill Medical College of Cornell University, New York, NY, USA.,Department of Neurology, Weill Medical College of Cornell University, New York, NY, USA
| | - Leslie M Thompson
- Department of Neurobiology and Behavior, University of California, Irvine, Irvine, CA, USA.,Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA.,Institute of Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
| | - Joan S Steffan
- Department of Psychiatry and Human Behavior, University of California, Irvine, Irvine, CA, USA.,Institute of Memory Impairments and Neurological Disorders, University of California, Irvine, Irvine, CA, USA
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16
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Wang D, Li X, Jiang Y, Jiang Y, Ma W, Yu P, Mao L. Ischemic Postconditioning Recovers Cortex Ascorbic Acid during Ischemia/Reperfusion Monitored with an Online Electrochemical System. ACS Chem Neurosci 2019; 10:2576-2583. [PMID: 30883085 DOI: 10.1021/acschemneuro.9b00056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
As a promising therapeutic treatment, ischemic postconditioning has recently received considerable attention. Although the neuroprotection effect of postconditioning has been observed, a reliable approach that can evaluate the neuroprotective efficiency of postconditioning treatment during the acute period after ischemia remains to be developed. This study investigates the dynamics of cortex ascorbic acid during the acute period of cerebral ischemia before and after ischemic postconditioning with an online electrochemical system (OECS). The cerebral ischemia/reperfusion injury and the neuronal functional outcome are evaluated with triphenyltetrazolium chloride staining, immunohistochemistry, and electrophysiological recording techniques. Electrochemical recording results show that cortex ascorbic acid sharply increases 10 min after middle cerebral artery occlusion and then reaches a plateau. After direct reperfusion following ischemia (i.e., without ischemic postconditioning), the cortex ascorbic acid further increases and then starts to decrease slowly at a time point of about 40 min after reperfusion. In striking contrast, the cortex ascorbic acid drops and recovers to its basal level after ischemic postconditioning followed by reperfusion. With the recovery of cortex ascorbic acid, ischemic postconditioning concomitantly promotes the recovery of neural function and reduces the oxidative damage. These results demonstrate that our OECS for monitoring cortex ascorbic acid can be used as a platform for evaluating the neuroprotective efficiency of ischemic postconditioning in the acute phase of cerebral ischemia, which is of great importance for screening proper postconditioning parameters for preventing ischemic damages.
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Affiliation(s)
- Dalei Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences (CAS), CAS Research/Education Center for Excellence in Molecule Science, Beijing 100190, China
| | - Xianchan Li
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences (CAS), CAS Research/Education Center for Excellence in Molecule Science, Beijing 100190, China
| | - Ying Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences (CAS), CAS Research/Education Center for Excellence in Molecule Science, Beijing 100190, China
| | - Yanan Jiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences (CAS), CAS Research/Education Center for Excellence in Molecule Science, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wenjie Ma
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences (CAS), CAS Research/Education Center for Excellence in Molecule Science, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ping Yu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences (CAS), CAS Research/Education Center for Excellence in Molecule Science, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lanqun Mao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, the Chinese Academy of Sciences (CAS), CAS Research/Education Center for Excellence in Molecule Science, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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17
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Zhao H, Chen Y, Feng H. P2X7 Receptor-Associated Programmed Cell Death in the Pathophysiology of Hemorrhagic Stroke. Curr Neuropharmacol 2018; 16:1282-1295. [PMID: 29766811 PMCID: PMC6251042 DOI: 10.2174/1570159x16666180516094500] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 07/17/2017] [Accepted: 02/28/2018] [Indexed: 12/20/2022] Open
Abstract
Hemorrhagic stroke is a life-threatening disease characterized by a sudden rupture of cerebral blood vessels, and cell death is widely believed to occur after exposure to blood metabolites or subsequently damaged cells. Recently, programmed cell death, such as apoptosis, autophagy, necroptosis, pyroptosis, and ferroptosis, has been demonstrated to play crucial roles in the pathophysiology of stroke. However, the detailed mechanisms of these novel kinds of cell death are still unclear. The P2X7 receptor, previously known for its cytotoxic activity, is an ATP-gated, nonselective cation channel that belongs to the family of ionotropic P2X receptors. Evolving evidence indicates that the P2X7 receptor plays a pivotal role in central nervous system pathology; genetic deletion and pharmacological blockade of the P2X7 receptor provide neuroprotection in various neurological disorders, including intracerebral hemorrhage and subarachnoid hemorrhage. The P2X7 receptor may regulate programmed cell death via (I) exocytosis of secretory lysosomes, (II) exocytosis of autophagosomes or autophagolysosomes during formation of the initial autophagic isolation membrane or omegasome, and (III) direct release of cytosolic IL-1β secondary to regulated cell death by pyroptosis or necroptosis. In this review, we present an overview of P2X7 receptor- associated programmed cell death for further understanding of hemorrhagic stroke pathophysiology, as well as potential therapeutic targets for its treatment.
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Affiliation(s)
- Hengli Zhao
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Yujie Chen
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Hua Feng
- Department of Neurosurgery, Southwest Hospital, Third Military Medical University, Chongqing, China
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18
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Tripathy D, Vignoli B, Ramesh N, Polanco MJ, Coutelier M, Stephen CD, Canossa M, Monin ML, Aeschlimann P, Turberville S, Aeschlimann D, Schmahmann JD, Hadjivassiliou M, Durr A, Pandey UB, Pennuto M, Basso M. Mutations in TGM6 induce the unfolded protein response in SCA35. Hum Mol Genet 2018; 26:3749-3762. [PMID: 28934387 DOI: 10.1093/hmg/ddx259] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 06/30/2017] [Indexed: 12/23/2022] Open
Abstract
Spinocerebellar ataxia type 35 (SCA35) is a rare autosomal-dominant neurodegenerative disease caused by mutations in the TGM6 gene, which codes for transglutaminase 6 (TG6). Mutations in TG6 induce cerebellar degeneration by an unknown mechanism. We identified seven patients bearing new mutations in TGM6. To gain insights into the molecular basis of mutant TG6-induced neurotoxicity, we analyzed all the seven new TG6 mutants and the five TG6 mutants previously linked to SCA35. We found that the wild-type (TG6-WT) protein mainly localized to the nucleus and perinuclear area, whereas five TG6 mutations showed nuclear depletion, increased accumulation in the perinuclear area, insolubility and loss of enzymatic function. Aberrant accumulation of these TG6 mutants in the perinuclear area led to activation of the unfolded protein response (UPR), suggesting that specific TG6 mutants elicit an endoplasmic reticulum stress response. Mutations associated with activation of the UPR caused death of primary neurons and reduced the survival of novel Drosophila melanogaster models of SCA35. These results indicate that mutations differently impacting on TG6 function cause neuronal dysfunction and death through diverse mechanisms and highlight the UPR as a potential therapeutic target for patient treatment.
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Affiliation(s)
- Debasmita Tripathy
- Laboratory of Transcriptional Neurobiology, Centre for Integrative Biology (CIBIO), University of Trento, Trento (TN), Italy
| | - Beatrice Vignoli
- Laboratory of Neural Stem Cells and Neurogenesis, Centre for Integrative Biology (CIBIO), University of Trento, Trento (TN), Italy
| | - Nandini Ramesh
- Division of Child Neurology, Department of Pediatrics, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA.,Department of Human Genetics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, PA, USA
| | - Maria Jose Polanco
- Dulbecco Telethon Institute Lab of Neurodegenerative Diseases, Centre for Integrative Biology (CIBIO), University of Trento, Trento (TN), Italy
| | - Marie Coutelier
- INSERM U 1127, Centre National de la Recherche Scientifique UMR 7225, UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, Institut du Cerveau et de la Moelle Epinière, 75013 Paris, France
| | - Christopher D Stephen
- Ataxia Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Marco Canossa
- Laboratory of Neural Stem Cells and Neurogenesis, Centre for Integrative Biology (CIBIO), University of Trento, Trento (TN), Italy
| | - Marie-Lorraine Monin
- INSERM U 1127, Centre National de la Recherche Scientifique UMR 7225, UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, Institut du Cerveau et de la Moelle Epinière, 75013 Paris, France
| | - Pascale Aeschlimann
- Matrix Biology & Tissue Repair Research Unit, College of Biomedical and Life Sciences, School of Dentistry, Cardiff University, Cardiff, UK
| | - Shannon Turberville
- Matrix Biology & Tissue Repair Research Unit, College of Biomedical and Life Sciences, School of Dentistry, Cardiff University, Cardiff, UK
| | - Daniel Aeschlimann
- Matrix Biology & Tissue Repair Research Unit, College of Biomedical and Life Sciences, School of Dentistry, Cardiff University, Cardiff, UK
| | - Jeremy D Schmahmann
- Ataxia Unit, Department of Neurology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - Marios Hadjivassiliou
- Academic Department of Neurosciences, Royal Hallamshire Hospital, University of Sheffield, Sheffield, UK
| | - Alexandra Durr
- INSERM U 1127, Centre National de la Recherche Scientifique UMR 7225, UMRS 1127, Université Pierre et Marie Curie (Paris 06), Sorbonne Universités, Institut du Cerveau et de la Moelle Epinière, 75013 Paris, France
| | - Udai B Pandey
- Division of Child Neurology, Department of Pediatrics, Children's Hospital of Pittsburgh, University of Pittsburgh Medical Center, Pittsburgh, PA, USA
| | - Maria Pennuto
- Dulbecco Telethon Institute Lab of Neurodegenerative Diseases, Centre for Integrative Biology (CIBIO), University of Trento, Trento (TN), Italy
| | - Manuela Basso
- Laboratory of Transcriptional Neurobiology, Centre for Integrative Biology (CIBIO), University of Trento, Trento (TN), Italy
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19
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Gerace E, Resta F, Landucci E, Renzi D, Masi A, Pellegrini-Giampietro DE, Calabrò A, Mannaioni G. The gliadin peptide 31-43 exacerbates kainate neurotoxicity in epilepsy models. Sci Rep 2017; 7:15146. [PMID: 29123180 PMCID: PMC5680182 DOI: 10.1038/s41598-017-14845-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Accepted: 10/17/2017] [Indexed: 12/23/2022] Open
Abstract
Many neurological disorders of gluten-related diseases (GRD), not directly referable to the gastrointestinal tract, have been reported in association with celiac disease (CD), including ataxia, neuropathy and epilepsy. In particular, people with epilepsy diagnosed with CD seems to be characterized by intractable seizure. In these patients, gluten restriction diet has resulted in a reduction of both seizure frequency and antiepileptic medication. Many hypotheses have been suggested, however, molecular mechanisms that associates GRD and epileptogenesis are yet unknown. In this study, we examined the effects of the toxic gliadin peptide 31-43 in in vivo and in vitro models of kainate-induced-epilepsy. We observed that p31-43 exacerbates kainate neurotoxicity in epilepsy models, through the involvement of the enzymatic activity of transglutaminases. Moreover, electrophysiological recordings in CA3 pyramidal neurons of organotypic hippocampal slices show that p31-43 increases the inward current induced by kainate, the average sEPSC amplitude and the total number of evoked action potentials when applicated alone, thus suggesting that p31-43 is able to influence CA3-CA1 neurotransmission and can potentiate postsynaptic kainate receptors. Our results suggest a possible mechanism underlying the relationship between GRD and epilepsy through a potentiation of kainate-induced neurotoxicity and links the toxic effects of gluten to epilepsy.
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Affiliation(s)
- Elisabetta Gerace
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, Viale G. Pieraccini 6, 50139, Florence, Italy. .,Department of Neuroscience, Psychology, Drug Research and Child Health (NeuroFarBa), Viale G. Pieraccini 6, 50139, Florence, Italy.
| | - Francesco Resta
- Department of Neuroscience, Psychology, Drug Research and Child Health (NeuroFarBa), Viale G. Pieraccini 6, 50139, Florence, Italy
| | - Elisa Landucci
- Department of Health Sciences, Section of Clinical Pharmacology and Oncology, Viale G. Pieraccini 6, 50139, Florence, Italy
| | - Daniela Renzi
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50141, Florence, Italy
| | - Alessio Masi
- Department of Neuroscience, Psychology, Drug Research and Child Health (NeuroFarBa), Viale G. Pieraccini 6, 50139, Florence, Italy
| | | | - Antonio Calabrò
- Department of Experimental and Clinical Biomedical Sciences, University of Florence, Viale Morgagni 50, 50141, Florence, Italy
| | - Guido Mannaioni
- Department of Neuroscience, Psychology, Drug Research and Child Health (NeuroFarBa), Viale G. Pieraccini 6, 50139, Florence, Italy
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20
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Oxidative stress and DNA damage after cerebral ischemia: Potential therapeutic targets to repair the genome and improve stroke recovery. Neuropharmacology 2017; 134:208-217. [PMID: 29128308 DOI: 10.1016/j.neuropharm.2017.11.011] [Citation(s) in RCA: 178] [Impact Index Per Article: 25.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 11/02/2017] [Accepted: 11/05/2017] [Indexed: 12/12/2022]
Abstract
The past two decades have witnessed remarkable advances in oxidative stress research, particularly in the context of ischemic brain injury. Oxidative stress in ischemic tissues compromises the integrity of the genome, resulting in DNA lesions, cell death in neurons, glial cells, and vascular cells, and impairments in neurological recovery after stroke. As DNA is particularly vulnerable to oxidative attack, cells have evolved the ability to induce multiple DNA repair mechanisms, including base excision repair (BER), nucleotide excision repair (NER) and non-homogenous endpoint jointing (NHEJ). Defective DNA repair is tightly correlated with worse neurological outcomes after stroke, whereas upregulation of DNA repair enzymes, such as APE1, OGG1, and XRCC1, improves long-term functional recovery following stroke. Indeed, DNA damage and repair are now known to play critical roles in fundamental aspects of stroke recovery, such as neurogenesis, white matter recovery, and neurovascular unit remodeling. Several DNA repair enzymes are essential for comprehensive neural repair mechanisms after stroke, including Polβ and NEIL3 for neurogenesis, APE1 for white matter repair, Gadd45b for axonal regeneration, and DNA-PKs for neurovascular remodeling. This review discusses the emerging role of DNA damage and repair in functional recovery after stroke and highlights the contribution of DNA repair to regenerative elements after stroke. This article is part of the Special Issue entitled 'Cerebral Ischemia'.
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Lee YJ, Jung SH, Hwang J, Jeon S, Han ET, Park WS, Hong SH, Kim YM, Ha KS. Cysteamine prevents vascular leakage through inhibiting transglutaminase in diabetic retina. J Endocrinol 2017; 235:39-48. [PMID: 28751454 DOI: 10.1530/joe-17-0109] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Accepted: 07/27/2017] [Indexed: 12/12/2022]
Abstract
Cysteamine (an aminothiol), which is derived from coenzyme A degradation and metabolized into taurine, has beneficial effects against cystinosis and neurodegenerative diseases; however, its role in diabetic complications is unknown. Thus, we sought to determine the preventive effect of cysteamine against hyperglycemia-induced vascular leakage in the retinas of diabetic mice. Cysteamine and ethanolamine, the sulfhydryl group-free cysteamine analogue, inhibited vascular endothelial growth factor (VEGF)-induced stress fiber formation and vascular endothelial (VE)-cadherin disruption in endothelial cells, which play a critical role in modulating endothelial permeability. Intravitreal injection of the amine compounds prevented hyperglycemia-induced vascular leakage in the retinas of streptozotocin-induced diabetic mice. We then investigated the potential roles of reactive oxygen species (ROS) and transglutaminase (TGase) in the cysteamine prevention of VEGF-induced vascular leakage. Cysteamine, but not ethanolamine, inhibited VEGF-induced ROS generation in endothelial cells and diabetic retinas. In contrast, VEGF-induced TGase activation was prevented by both cysteamine and ethanolamine. Our findings suggest that cysteamine protects against vascular leakage through inhibiting VEGF-induced TGase activation rather than ROS generation in diabetic retinas.
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Affiliation(s)
- Yeon-Ju Lee
- Department of Molecular and Cellular BiochemistryKangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Se-Hui Jung
- Department of Molecular and Cellular BiochemistryKangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - JongYun Hwang
- Department of Obstetrics and GynecologyKangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Sohee Jeon
- Department of OphthalmologySeoul St. Mary's Hospital, Catholic University, Seoul, Korea
| | - Eun-Taek Han
- Department of Medical Environmental Biology and Tropical MedicineKangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Won Sun Park
- Department of PhysiologyKangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Seok-Ho Hong
- Department of Internal MedicineKangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular BiochemistryKangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular BiochemistryKangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
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22
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Tharmalingam S, Sreetharan S, Kulesza AV, Boreham DR, Tai TC. Low-Dose Ionizing Radiation Exposure, Oxidative Stress and Epigenetic Programing of Health and Disease. Radiat Res 2017; 188:525-538. [PMID: 28753061 DOI: 10.1667/rr14587.1] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Ionizing radiation exposure from medical diagnostic imaging has greatly increased over the last few decades. Approximately 80% of patients who undergo medical imaging are exposed to low-dose ionizing radiation (LDIR). Although there is widespread consensus regarding the harmful effects of high doses of radiation, the biological effects of low-linear energy transfer (LET) LDIR is not well understood. LDIR is known to promote oxidative stress, however, these levels may not be large enough to result in genomic mutations. There is emerging evidence that oxidative stress causes heritable modifications via epigenetic mechanisms (DNA methylation, histone modification, noncoding RNA regulation). These epigenetic modifications result in permanent cellular transformations without altering the underlying DNA nucleotide sequence. This review summarizes the major concepts in the field of epigenetics with a focus on the effects of low-LET LDIR (<100 mGy) and oxidative stress on epigenetic gene modification. In this review, we show evidence that suggests that LDIR-induced oxidative stress provides a mechanistic link between LDIR and epigenetic gene regulation. We also discuss the potential implication of LDIR exposure during pregnancy where intrauterine fetal development is highly susceptible to oxidative stress-induced epigenetic programing.
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Affiliation(s)
| | | | - Adomas V Kulesza
- b Department of Biology, McMaster University, Hamilton, Canada, L8S 4K1
| | - Douglas R Boreham
- a Northern Ontario School of Medicine, Laurentian University, Sudbury, Canada, P3E 2C6.,c Department of Medical Physics and Applied Radiation Sciences, McMaster University, Hamilton, Canada, L8S 4K1
| | - T C Tai
- a Northern Ontario School of Medicine, Laurentian University, Sudbury, Canada, P3E 2C6
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23
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Histone Post-Translational Modifications and Nucleosome Organisation in Transcriptional Regulation: Some Open Questions. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017. [PMID: 28639249 DOI: 10.1007/5584_2017_58] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The organisation of chromatin is first discussed to conclude that nucleosomes play both structural and transcription-regulatory roles. The presence of nucleosomes makes difficult the access of transcriptional factors to their target sequences and the action of RNA polymerases. The histone post-translational modifications and nucleosome remodelling are first discussed, from a historical point of view, as mechanisms to remove the obstacles imposed by chromatin structure to transcription. Instead of reviewing the state of the art of the whole field, this review is centred on some open questions. First, some "non-classical" histone modifications, such as short-chain acylations other than acetylation, are considered to conclude that their relationship with the concentration of metabolic intermediaries might make of them a sensor of the physiological state of the cells. Then attention is paid to the interest of studying chromatin organisation and epigenetic marks at a single nucleosome level as a complement to genome-wide approaches. Finally, as a consequence of the above questions, the review focuses on the presence of multiple histone post-translational modifications on a single nucleosome. The methods to detect them and their meaning, with special emphasis on bivalent marks, are discussed.
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Lee YJ, Jung SH, Kim SH, Kim MS, Lee S, Hwang J, Kim SY, Kim YM, Ha KS. Essential Role of Transglutaminase 2 in Vascular Endothelial Growth Factor-Induced Vascular Leakage in the Retina of Diabetic Mice. Diabetes 2016; 65:2414-28. [PMID: 27207524 DOI: 10.2337/db15-1594] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 04/21/2016] [Indexed: 11/13/2022]
Abstract
Diabetic retinopathy is predominantly caused by vascular endothelial growth factor (VEGF)-induced vascular leakage; however, the underlying mechanism is unclear. Here we designed an in vivo transglutaminase (TGase) activity assay in mouse retina and demonstrated that hyperglycemia induced vascular leakage by activating TGase2 in diabetic retina. VEGF elevated TGase2 activity through sequential elevation of intracellular Ca(2+) and reactive oxygen species (ROS) concentrations in endothelial cells. The TGase inhibitors cystamine and monodansylcadaverin or TGase2 small interfering RNA (siRNA) prevented VEGF-induced stress fiber formation and vascular endothelial (VE)-cadherin disruption, which play a critical role in modulating endothelial permeability. Intravitreal injection of two TGase inhibitors or TGase2 siRNA successfully inhibited hyperglycemia-induced TGase activation and microvascular leakage in the retinas of diabetic mice. C-peptide or ROS scavengers also inhibited TGase activation in diabetic mouse retinas. The role of TGase2 in VEGF-induced vascular leakage was further supported using diabetic TGase2(-/-) mice. Thus, our findings suggest that ROS-mediated activation of TGase2 plays a key role in VEGF-induced vascular leakage by stimulating stress fiber formation and VE-cadherin disruption.
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Affiliation(s)
- Yeon-Ju Lee
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Se-Hui Jung
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Su-Hyeon Kim
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Min-Soo Kim
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea Department of Anesthesiology, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Sungeun Lee
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - JongYun Hwang
- Department of Obstetrics and Gynecology, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Soo-Youl Kim
- Cancer Cell and Molecular Biology Branch, National Cancer Center, Goyang, Gyeonggi-do, Korea
| | - Young-Myeong Kim
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
| | - Kwon-Soo Ha
- Department of Molecular and Cellular Biochemistry, Kangwon National University School of Medicine, Chuncheon, Kangwon-do, Korea
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25
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Wang L, Jia J, Zhang J, Li K. Serum levels of SOD and risk of autism spectrum disorder: A case‐control study. Int J Dev Neurosci 2016; 51:12-6. [DOI: 10.1016/j.ijdevneu.2016.04.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Revised: 04/12/2016] [Accepted: 04/14/2016] [Indexed: 12/15/2022] Open
Affiliation(s)
- Lixuan Wang
- No. 2 Department of NeurologyCangzhou Central HospitalCangzhou061001China
| | - Jianpu Jia
- No. 2 Department of NeurologyCangzhou Central HospitalCangzhou061001China
| | - Junling Zhang
- No. 2 Department of NeurologyCangzhou Central HospitalCangzhou061001China
| | - Kuo Li
- No. 2 Department of NeurologyCangzhou Central HospitalCangzhou061001China
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26
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Zhao H, Wang R, Tao Z, Yan F, Gao L, Liu X, Wang N, Min L, Jia Y, Zhao Y, Ji X, Luo Y. Activation of T-LAK-cell-originated protein kinase-mediated antioxidation protects against focal cerebral ischemia-reperfusion injury. FEBS J 2014; 281:4411-20. [PMID: 25065601 DOI: 10.1111/febs.12948] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 07/13/2014] [Accepted: 07/23/2014] [Indexed: 12/16/2022]
Abstract
T-LAK-cell-originated protein kinase (TOPK), a MAPKK-like kinase, is crucial for neural progenitor cell proliferation; however, the function of TOPK and the molecular mechanism underlying cerebral ischemia-reperfusion injury remains unknown. Therefore, we investigated the role of TOPK in experimental stroke. Sprague-Dawley rats underwent transient middle cerebral artery occlusion (tMCAO) and reperfusion, and TOPK small interfering RNA (siRNA) was delivered by intracerebroventricular injection at the beginning of MCAO. After TOPK overexpression and H2O2 stimulation in PC12 neuronal cells, antioxidative proteins, apoptosis-related proteins and signal pathways were detected by western blot analysis, the levels of the peroxidation products (malondialdehyde and 3-nitrotyrosine) were measured with ELISA. Phosphorylation of TOPK was increased in rat cortical neurons following tMCAO. TOPK overexpression in PC12 cells augmented levels of antioxidative proteins (peroxiredoxin 1 and 2, heme oxygenase 1 and manganese superoxide dismutase), as well as total superoxide dismutase activity, along with inhibition of malondialdehyde and 3-nitrotyrosine upon H2O2 stimulation. TOPK overexpression increased cell viability and reduced expression of caspase 3 and caspase 12 in PC12 cells in response to H2O2 . The p-ERK level was increased by TOPK overexpression, and antioxidative protection afforded by TOPK was abolished by blocking the extracellular signal-regulated kinase pathway in PC12 cells. TOPK siRNA increased the infarct volume and reduced total superoxide dismutase activity in the cortex in vivo after MCAO. These data reveal that activating TOPK confers neuroprotection against focal cerebral ischemia-reperfusion injury by antioxidative function, in part through activation of the extracellular signal-regulated kinase pathway.
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Affiliation(s)
- Haiping Zhao
- Cerebrovascular Diseases Research Institute and Department of Neurology, Xuanwu Hospital of Capital Medical University, Beijing, China; Beijing Geriatric Medical Research Center, Beijing, China; Key Laboratory of Neurodegenerative Diseases of Ministry of Education and Beijing Key Laboratory of Translational Medicine for Cerebrovascular Diseases, Beijing, China
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27
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Liu K, Yu P, Lin Y, Wang Y, Ohsaka T, Mao L. Online Electrochemical Monitoring of Dynamic Change of Hippocampal Ascorbate: Toward a Platform for In Vivo Evaluation of Antioxidant Neuroprotective Efficiency against Cerebral Ischemia Injury. Anal Chem 2013; 85:9947-54. [DOI: 10.1021/ac402620c] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Kun Liu
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Analytical
Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, P. R. China
- Capital University of Physical Education and Sports, Beijing 100191, P. R. China
| | - Ping Yu
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Analytical
Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yuqing Lin
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Analytical
Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Yuexiang Wang
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Analytical
Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Takeo Ohsaka
- Department
of Electronic Chemistry, Interdisciplinary Graduate School of Science
and Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8502, Japan
| | - Lanqun Mao
- Beijing
National Laboratory for Molecular Sciences, Key Laboratory of Analytical
Chemistry for Living Biosystems, Institute of Chemistry, The Chinese Academy of Sciences, Beijing 100190, P. R. China
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