1
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Duarte LF, Villalobos V, Farías MA, Rangel-Ramírez MA, González-Madrid E, Navarro AJ, Carbone-Schellman J, Domínguez A, Alvarez A, Riedel CA, Bueno SM, Kalergis AM, Cáceres M, González PA. Asymptomatic herpes simplex virus brain infection elicits cellular senescence phenotypes in the central nervous system of mice suffering multiple sclerosis-like disease. Commun Biol 2024; 7:811. [PMID: 38965360 PMCID: PMC11224417 DOI: 10.1038/s42003-024-06486-x] [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: 02/26/2024] [Accepted: 06/21/2024] [Indexed: 07/06/2024] Open
Abstract
Experimental autoimmune encephalomyelitis (EAE) is a demyelinating disease affecting the central nervous system (CNS) in animals that parallels several clinical and molecular traits of multiple sclerosis in humans. Herpes simplex virus type 1 (HSV-1) infection mainly causes cold sores and eye diseases, yet eventually, it can also reach the CNS, leading to acute encephalitis. Notably, a significant proportion of healthy individuals are likely to have asymptomatic HSV-1 brain infection with chronic brain inflammation due to persistent latent infection in neurons. Because cellular senescence is suggested as a potential factor contributing to the development of various neurodegenerative disorders, including multiple sclerosis, and viral infections may induce a premature senescence state in the CNS, potentially increasing susceptibility to such disorders, here we examine the presence of senescence-related markers in the brains and spinal cords of mice with asymptomatic HSV-1 brain infection, EAE, and both conditions. Across all scenarios, we find a significant increases of senescence biomarkers in the CNS with some differences depending on the analyzed group. Notably, some senescence biomarkers are exclusively observed in mice with the combined conditions. These results indicate that asymptomatic HSV-1 brain infection and EAE associate with a significant expression of senescence biomarkers in the CNS.
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MESH Headings
- Animals
- Cellular Senescence
- Mice
- Brain/virology
- Brain/pathology
- Brain/metabolism
- Multiple Sclerosis/virology
- Multiple Sclerosis/pathology
- Multiple Sclerosis/metabolism
- Herpesvirus 1, Human/physiology
- Herpesvirus 1, Human/pathogenicity
- Herpes Simplex/virology
- Herpes Simplex/pathology
- Female
- Mice, Inbred C57BL
- Encephalomyelitis, Autoimmune, Experimental/virology
- Encephalomyelitis, Autoimmune, Experimental/pathology
- Encephalomyelitis, Autoimmune, Experimental/metabolism
- Phenotype
- Central Nervous System/virology
- Central Nervous System/metabolism
- Central Nervous System/pathology
- Spinal Cord/virology
- Spinal Cord/metabolism
- Spinal Cord/pathology
- Biomarkers/metabolism
- Encephalitis, Herpes Simplex/virology
- Encephalitis, Herpes Simplex/pathology
- Encephalitis, Herpes Simplex/metabolism
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Affiliation(s)
- Luisa F Duarte
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Ciencias Biológicas, Facultad de Ciencias de La Vida, Universidad Andrés Bello, Santiago, Chile
- Centro de Medicina Regenerativa, Facultad de Medicina, Clínica Alemana-Universidad del Desarrollo, Santiago, Chile
| | - Verónica Villalobos
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile
| | - Mónica A Farías
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Ma Andreina Rangel-Ramírez
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Ciencias Biológicas, Facultad de Ciencias de La Vida, Universidad Andrés Bello, Santiago, Chile
| | - Enrique González-Madrid
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Ciencias Biológicas, Facultad de Ciencias de La Vida, Universidad Andrés Bello, Santiago, Chile
| | - Areli J Navarro
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Javier Carbone-Schellman
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Angélica Domínguez
- Departamento de Salud Pública, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alejandra Alvarez
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A Riedel
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Ciencias Biológicas, Facultad de Ciencias de La Vida, Universidad Andrés Bello, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mónica Cáceres
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences (ICBM), Faculty of Medicine, Universidad de Chile, Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile.
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile.
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.
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2
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Reyes A, Ortiz G, Duarte LF, Fernández C, Hernández-Armengol R, Palacios PA, Prado Y, Andrade CA, Rodriguez-Guilarte L, Kalergis AM, Simon F, Carreño LJ, Riedel CA, Cáceres M, González PA. Contribution of viral and bacterial infections to senescence and immunosenescence. Front Cell Infect Microbiol 2023; 13:1229098. [PMID: 37753486 PMCID: PMC10518457 DOI: 10.3389/fcimb.2023.1229098] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Accepted: 08/24/2023] [Indexed: 09/28/2023] Open
Abstract
Cellular senescence is a key biological process characterized by irreversible cell cycle arrest. The accumulation of senescent cells creates a pro-inflammatory environment that can negatively affect tissue functions and may promote the development of aging-related diseases. Typical biomarkers related to senescence include senescence-associated β-galactosidase activity, histone H2A.X phosphorylation at serine139 (γH2A.X), and senescence-associated heterochromatin foci (SAHF) with heterochromatin protein 1γ (HP-1γ protein) Moreover, immune cells undergoing senescence, which is known as immunosenescence, can affect innate and adaptative immune functions and may elicit detrimental effects over the host's susceptibility to infectious diseases. Although associations between senescence and pathogens have been reported, clear links between both, and the related molecular mechanisms involved remain to be determined. Furthermore, it remains to be determined whether infections effectively induce senescence, the impact of senescence and immunosenescence over infections, or if both events coincidently share common molecular markers, such as γH2A.X and p53. Here, we review and discuss the most recent reports that describe cellular hallmarks and biomarkers related to senescence in immune and non-immune cells in the context of infections, seeking to better understand their relationships. Related literature was searched in Pubmed and Google Scholar databases with search terms related to the sections and subsections of this review.
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Affiliation(s)
- Antonia Reyes
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Gerardo Ortiz
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Luisa F. Duarte
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Christian Fernández
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile
| | - Rosario Hernández-Armengol
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Pablo A. Palacios
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Yolanda Prado
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Catalina A. Andrade
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Linmar Rodriguez-Guilarte
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M. Kalergis
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Felipe Simon
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Leandro J. Carreño
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina, Universidad de Chile, Santiago, Chile
| | - Claudia A. Riedel
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias de la Vida, Universidad Andres Bello, Santiago, Chile
| | - Mónica Cáceres
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Millennium Nucleus of Ion Channel-Associated Diseases (MiNICAD), Santiago, Chile
| | - Pablo A. González
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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3
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Li Puma DD, Colussi C, Bandiera B, Puliatti G, Rinaudo M, Cocco S, Paciello F, Re A, Ripoli C, De Chiara G, Bertozzi A, Palamara AT, Piacentini R, Grassi C. Interleukin 1β triggers synaptic and memory deficits in Herpes simplex virus type-1-infected mice by downregulating the expression of synaptic plasticity-related genes via the epigenetic MeCP2/HDAC4 complex. Cell Mol Life Sci 2023; 80:172. [PMID: 37261502 DOI: 10.1007/s00018-023-04817-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 05/17/2023] [Accepted: 05/20/2023] [Indexed: 06/02/2023]
Abstract
Extensive research provides evidence that neuroinflammation underlies numerous brain disorders. However, the molecular mechanisms by which inflammatory mediators determine synaptic and cognitive dysfunction occurring in neurodegenerative diseases (e.g., Alzheimer's disease) are far from being fully understood. Here we investigated the role of interleukin 1β (IL-1β), and the molecular cascade downstream the activation of its receptor, to the synaptic dysfunction occurring in the mouse model of multiple Herpes simplex virus type-1 (HSV-1) reactivations within the brain. These mice are characterized by neuroinflammation and memory deficits associated with a progressive accumulation of neurodegenerative hallmarks (e.g., amyloid-β protein and tau hyperphosphorylation). Here we show that mice undergone two HSV-1 reactivations in the brain exhibited increased levels of IL-1β along with significant alterations of: (1) cognitive performances; (2) hippocampal long-term potentiation; (3) expression synaptic-related genes and pre- and post-synaptic proteins; (4) dendritic spine density and morphology. These effects correlated with activation of the epigenetic repressor MeCP2 that, in association with HDAC4, affected the expression of synaptic plasticity-related genes. Specifically, in response to HSV-1 infection, HDAC4 accumulated in the nucleus and promoted MeCP2 SUMOylation that is a post-translational modification critically affecting the repressive activity of MeCP2. The blockade of IL-1 receptors by the specific antagonist Anakinra prevented the MeCP2 increase and the consequent downregulation of gene expression along with rescuing structural and functional indices of neurodegeneration. Collectively, our findings provide novel mechanistic evidence on the role played by HSV-1-activated IL-1β signaling pathways in synaptic deficits leading to cognitive impairment.
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Affiliation(s)
- Domenica Donatella Li Puma
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy
| | - Claudia Colussi
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy
- Department of Engineering, Istituto di Analisi dei Sistemi ed Informatica "Antonio Ruberti", National Research Council, 00185, Rome, Italy
| | - Bruno Bandiera
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Giulia Puliatti
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Marco Rinaudo
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy
| | - Sara Cocco
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Fabiola Paciello
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy
| | - Agnese Re
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Cristian Ripoli
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy
| | - Giovanna De Chiara
- Institute of Translational Pharmacology, National Research Council (CNR), 00133, Rome, Italy
| | - Alessia Bertozzi
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- Department of Engineering, Istituto di Analisi dei Sistemi ed Informatica "Antonio Ruberti", National Research Council, 00185, Rome, Italy
| | - Anna Teresa Palamara
- Department of Infectious Diseases, Istituto Superiore Di Sanità, 00161, Rome, Italy
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Laboratory Affiliated to Istituto Pasteur Italia-Cenci Bolognetti Foundation, 00185, Rome, Italy
| | - Roberto Piacentini
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy.
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy.
| | - Claudio Grassi
- Department of Neuroscience, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy
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4
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De Vlieger L, Vandenbroucke RE, Van Hoecke L. Recent insights into viral infections as a trigger and accelerator in alzheimer's disease. Drug Discov Today 2022; 27:103340. [PMID: 35987492 PMCID: PMC9385395 DOI: 10.1016/j.drudis.2022.103340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 07/08/2022] [Accepted: 08/12/2022] [Indexed: 11/16/2022]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder for which only symptomatic medication is available, except for the recently FDA-approved aducanumab. This lack of effective treatment urges us to investigate alternative paths that might contribute to disease development. In light of the recent SARS-CoV-2 pandemic and the disturbing neurological complications seen in some patients, it is desirable to (re)investigate the viability of the viral infection theory claiming that a microbe could affect AD initiation and/or progression. Here, we review the most important evidence for this theory with a special focus on two viruses, namely HSV-1 and SARS-CoV-2. Moreover, we discuss the possible involvement of extracellular vesicles (EVs). This overview will contribute to a more rational approach of potential treatment strategies for AD patients.
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Affiliation(s)
- Lize De Vlieger
- Barriers in Inflammation Lab, VIB Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Roosmarijn E Vandenbroucke
- Barriers in Inflammation Lab, VIB Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium.
| | - Lien Van Hoecke
- Barriers in Inflammation Lab, VIB Center for Inflammation Research, Ghent, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
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5
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Villalobos V, Garrido M, Reyes A, Fernández C, Diaz C, Torres VA, González PA, Cáceres M. Aging envisage imbalance of the periodontium: A keystone in oral disease and systemic health. Front Immunol 2022; 13:1044334. [PMID: 36341447 PMCID: PMC9630574 DOI: 10.3389/fimmu.2022.1044334] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Accepted: 10/05/2022] [Indexed: 10/21/2023] Open
Abstract
Aging is a gradual and progressive deterioration of integrity across multiple organ systems that negatively affects gingival wound healing. The cellular responses associated with wound healing, such as collagen synthesis, cell migration, proliferation, and collagen contraction, have been shown to be lower in gingival fibroblasts (the most abundant cells from the connective gingival tissue) in aged donors than young donors. Cellular senescence is one of the hallmarks of aging, which is characterized by the acquisition of a senescence-associated secretory phenotype that is characterized by the release of pro-inflammatory cytokines, chemokines, growth factors, and proteases which have been implicated in the recruitment of immune cells such as neutrophils, T cells and monocytes. Moreover, during aging, macrophages show altered acquisition of functional phenotypes in response to the tissue microenvironment. Thus, inflammatory and resolution macrophage-mediated processes are impaired, impacting the progression of periodontal disease. Interestingly, salivary antimicrobial peptides, such as histatins, which are involved in various functions, such as antifungal, bactericidal, enamel-protecting, angiogenesis, and re-epithelization, have been shown to fluctuate with aging. Several studies have associated the presence of Porphyromonas gingivalis, a key pathogen related to periodontitis and apical periodontitis, with the progression of Alzheimer's disease, as well as gut, esophageal, and gastric cancers. Moreover, herpes simplex virus types 1 and 2 have been associated with the severity of periodontal disease, cardiovascular complications, and nervous system-related pathologies. This review encompasses the effects of aging on periodontal tissues, how P. gingivalis and HSV infections could favor periodontitis and their relationship with other pathologies.
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Affiliation(s)
- Verónica Villalobos
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Mauricio Garrido
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Department of Conservative Dentistry, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
| | - Antonia Reyes
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Christian Fernández
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Catalina Diaz
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
| | - Vicente A. Torres
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Institute for Research in Dental Sciences, Faculty of Dentistry, Universidad de Chile, Santiago, Chile
- Advanced Center for Chronic Diseases (ACCDiS), Universidad de Chile, Santiago, Chile
| | - Pablo A. González
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Mónica Cáceres
- Millennium Institute on Immunology and Immunotherapy, Santiago, Chile
- Program of Cellular and Molecular Biology, Institute of Biomedical Sciences, Faculty of Medicine, Universidad de Chile, Santiago, Chile
- Millennium Nucleus of Ion Channels-Associated Diseases (MiNICAD), Universidad de Chile, Santiago, Chile
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6
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Wright LR, Wright DL, Weller SK. Viral Nucleases from Herpesviruses and Coronavirus in Recombination and Proofreading: Potential Targets for Antiviral Drug Discovery. Viruses 2022; 14:v14071557. [PMID: 35891537 PMCID: PMC9324378 DOI: 10.3390/v14071557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 02/05/2023] Open
Abstract
In this review, we explore recombination in two very different virus families that have become major threats to human health. The Herpesviridae are a large family of pathogenic double-stranded DNA viruses involved in a range of diseases affecting both people and animals. Coronaviridae are positive-strand RNA viruses (CoVs) that have also become major threats to global health and economic stability, especially in the last two decades. Despite many differences, such as the make-up of their genetic material (DNA vs. RNA) and overall mechanisms of genome replication, both human herpes viruses (HHVs) and CoVs have evolved to rely heavily on recombination for viral genome replication, adaptation to new hosts and evasion of host immune regulation. In this review, we will focus on the roles of three viral exonucleases: two HHV exonucleases (alkaline nuclease and PolExo) and one CoV exonuclease (ExoN). We will review the roles of these three nucleases in their respective life cycles and discuss the state of drug discovery efforts against these targets.
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Affiliation(s)
- Lee R. Wright
- Department of Pharmaceutical Sciences, University of Connecticut School of Pharmacy, Storrs, CT 06269, USA; (L.R.W.); (D.L.W.)
| | - Dennis L. Wright
- Department of Pharmaceutical Sciences, University of Connecticut School of Pharmacy, Storrs, CT 06269, USA; (L.R.W.); (D.L.W.)
| | - Sandra K. Weller
- Department of Molecular Biology and Biophysics, University of Connecticut School of Medicine, 263 Farmington Ave., Farmington, CT 06030, USA
- Correspondence: ; Tel.: +1-(860)-679-2310; Fax: +1-(860)-679-1239
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7
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The Inhibition of DNA Viruses by the Amphibian Antimicrobial Peptide Temporin G: A Virological Study Addressing HSV-1 and JPCyV. Int J Mol Sci 2022; 23:ijms23137194. [PMID: 35806198 PMCID: PMC9266403 DOI: 10.3390/ijms23137194] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/24/2022] [Accepted: 06/25/2022] [Indexed: 12/17/2022] Open
Abstract
Herpes simplex virus type-1 (HSV-1) and John Cunningham polyomavirus (JCPyV) are widely distributed DNA viruses causing mainly asymptomatic infection, but also mild to very severe diseases, especially when these viruses reach the brain. Some drugs have been developed to inhibit HSV-1 replication in host cells, but their prolonged use may induce resistance phenomena. In contrast, to date, there is no cure for JCPyV. The search for alternative drugs that can reduce viral infections without undermining the host cell is moving toward antimicrobial peptides (AMPs) of natural occurrence. These include amphibian AMPs belonging to the temporin family. Herein, we focus on temporin G (TG), showing that it strongly affects HSV-1 replication by acting either during the earliest stages of its life cycle or directly on the virion. Computational studies have revealed the ability of TG to interact with HSV-1 glycoprotein B. We also found that TG reduced JCPyV infection, probably affecting both the earliest phases of its life cycle and the viral particle, likely through an interaction with the viral capsid protein VP1. Overall, our results are promising for the development of short naturally occurring peptides as antiviral agents used to counteract diseases related to HSV-1 and JCPyV.
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8
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Pedrazini MC, da Silva MH, Groppo FC. L-lysine: its antagonism with L-arginine in controlling viral infection. Narrative Literature Review. Br J Clin Pharmacol 2022; 88:4708-4723. [PMID: 35723628 DOI: 10.1111/bcp.15444] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2022] [Revised: 06/06/2022] [Accepted: 06/15/2022] [Indexed: 11/30/2022] Open
Abstract
Knowledge about viral characteristics, mechanisms of entry into the host cell and multiplication/dissemination can help in the control and treatment of viral pathologies. Several nutritional factors linked to the host may favor viral multiplication and their control, may lead to new prophylactic alternatives and/or antiviral therapies. The objective of this review is to discuss the relationship between the amino acid L-lysine and the control of viral infections, aiming at a possible therapeutic property. This research used databases such as PubMed, Web of Science, Scielo, Medline and Google Scholar, as well as searching for references cited by journals. The time frame covered the period between 1964 and January 2022. The observed studies have shown that the usual antiviral therapies are not able to interfere with the viruses in their latent state, however, they can interfere with the adhesion and fusion of viral particles or the production of proteins, which play an important role in viral epidemiology and control, particularly in the initial moment and in the reactivation. Lysine is an amino acid that can interfere mainly in the formation of capsid proteins and DNA by a competitive antagonism with amino acid arginine, which is an essential amino acid for some viruses and also by promoting the increase of arginase, increasing the catabolism of arginine. Although there is evidence of the importance of L-lysine in viral control, more studies are needed, with a view to new antiviral therapies.
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Affiliation(s)
- Maria Cristina Pedrazini
- Department of Biosciences, Piracicaba Dental School, FOP, UNICAMP, Campinas, São Paulo State, Brazil.,Department of Dental Sciences, São Leopoldo Mandic Research Center Campinas, São Paulo State, Brazil
| | - Mariliza Henrique da Silva
- Department of Infectology Diagnosis, IST/AIDS State Program, ITD/AIDS Reference and Training Center, São Paulo, São Paulo State, Brazil
| | - Francisco Carlos Groppo
- Department of Biosciences, Piracicaba Dental School, FOP, UNICAMP, Campinas, São Paulo State, Brazil
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9
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Licastro F. Special Issue Editorial: "Infections, Inflammation and Neurodegeneration in Alzheimer Disease" Infections, Neuronal Senescence, and Dementia. Int J Mol Sci 2022; 23:ijms23115865. [PMID: 35682542 PMCID: PMC9180241 DOI: 10.3390/ijms23115865] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 05/11/2022] [Accepted: 05/17/2022] [Indexed: 11/16/2022] Open
Abstract
Alzheimer's disease (AD) is a complex chronic disease of the brain characterized by several neurodegenerative mechanisms and is responsible for most dementia cases in the elderly. Declining immunity during ageing is often associated with peripheral chronic inflammation, and chronic neuroinflammation is a constant component of AD brain pathology. In the Special Issue published in 2021 eight papers were collected regarding different aspects of neurodegeneration associated with AD. Five papers presented and discussed infectious agents involved in brain AD pathology and three discussed data regarding receptors regulation and possible treatment of the disease. Below I will discuss and further elaborate on topics related to infections, inflammation, and neurodegenerative pathways in AD and brain senescence. The topic presented here may contribute to early intervention protocols for preventing or slowing the progression of cognitive deterioration in the elderly.
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Affiliation(s)
- Federico Licastro
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40126 Bologna, Italy
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10
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Role of HSV-1 in Alzheimer's disease pathogenesis: A challenge for novel preventive/therapeutic strategies. Curr Opin Pharmacol 2022; 63:102200. [PMID: 35276497 DOI: 10.1016/j.coph.2022.102200] [Citation(s) in RCA: 30] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Revised: 01/26/2022] [Accepted: 01/28/2022] [Indexed: 01/03/2023]
Abstract
Herpes simplex virus-1 (HSV-1) is a ubiquitous DNA virus able to establish a life-long latent infection in host sensory ganglia. Following periodic reactivations, the neovirions usually target the site of primary infection causing recurrent diseases in susceptible individuals. However, reactivated HSV-1 may also reach the brain resulting in severe herpetic encephalitis or in asymptomatic infections. These have been reportedly linked to neurodegenerative disorders, such as Alzheimer's disease (AD), suggesting antiviral preventive or/therapeutic treatments as possible strategies to counteract AD onset and progression. Here, we provide an overview of the AD-like mechanisms driven by HSV-1-infection in neurons and discuss the ongoing trials repurposing anti-herpetic drugs to treat AD as well as preventive strategies aimed at blocking virus infection.
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11
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Zhang Y, Qu J, Luo L, Xu Z, Zou X. Multigenomics Reveals the Causal Effect of Herpes Simplex Virus in Alzheimer's Disease: A Two-Sample Mendelian Randomization Study. Front Genet 2022; 12:773725. [PMID: 35069681 PMCID: PMC8766664 DOI: 10.3389/fgene.2021.773725] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2021] [Accepted: 11/25/2021] [Indexed: 11/17/2022] Open
Abstract
In recent years, the herpes virus infectious hypothesis for Alzheimer’s disease (AD) has gained support from an increasing number of researchers. Herpes simplex virus (HSV) is a potential risk factor associated with AD. This study assessed whether HSV has a causal relationship with AD using a two-sample Mendelian randomization analysis model. Six single-nucleotide polymorphisms (SNPs) associated with HSV-1 and thirteen SNPs associated with HSV-2 were used as instrumental variables in the MR analysis. We estimated MR values of relevance between exposure and the risk of AD using inverse-variance weighted (IVW) method, MR-Egger regression (Egger), and weighted median estimator (WME). To make the conclusion more robust and reliable, sensitivity analyses and RadialMR were performed to evaluate the pleiotropy and heterogeneity. We found that anti-HSV-1 IgG measurements were not associated with risk of AD (OR, 0.96; 95% CI, 0.79–1.18; p = 0.736), and the same was true for HSV-2 (OR, 1.03; 95% CI, 0.94–1.12; p = 0.533). The findings indicated that any HSV infection does not appear to be a genetically valid target of intervention in AD.
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Affiliation(s)
- Yuwei Zhang
- College of Life Sciences, Institute of Fungal Resources, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, China
| | - Jiaojiao Qu
- College of Tea Sciences, Guizhou University, Guiyang, China
| | - Li Luo
- College of Life Sciences, Institute of Fungal Resources, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, China
| | - Zhongshun Xu
- College of Life Sciences, Institute of Fungal Resources, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, China
| | - Xiao Zou
- College of Life Sciences, Institute of Fungal Resources, Guizhou University, Guiyang, China.,Key Laboratory of Plant Resource Conservation and Germplasm Innovation in Mountainous Region (Ministry of Education), Institute of Agro-Bioengineering, Guizhou University, Guiyang, China
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12
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The potential role of COVID-19 in the induction of DNA damage. MUTATION RESEARCH. REVIEWS IN MUTATION RESEARCH 2022; 789:108411. [PMID: 35690420 PMCID: PMC8767986 DOI: 10.1016/j.mrrev.2022.108411] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Revised: 11/30/2021] [Accepted: 01/17/2022] [Indexed: 01/07/2023]
Abstract
The coronavirus disease-2019 (COVID-19) caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) is challenging global health and economic systems. In some individuals, COVID-19 can cause a wide array of symptoms, affecting several organs, such as the lungs, heart, bowels, kidneys and brain, causing multiorgan failure, sepsis and death. These effects are related in part to direct viral infection of these organs, immunological deregulation, a hypercoagulatory state and the potential for development of cytokine storm syndrome. Since the appearance of COVID-19 is recent, the long-term effects on the health of recovered patients remain unknown. In this review, we focused on current evidence of the mechanisms of DNA damage mediated by coronaviruses. Data supports that these viruses can induce DNA damage, genomic instability, and cell cycle deregulation during their replication in mammalian cells. Since the induction of DNA damage and aberrant DNA repair mechanisms are related to the development of chronic diseases such as cancer, diabetes, neurodegenerative disorders, and atherosclerosis, it will be important to address similar effects and outcomes in recovered COVID-19 patients.
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Pedrazini MC, da Silva MH, Groppo FC. L-lysine in herpesvirus reactivation after ChAdOx1 nCoV-19 vaccine (AZD1222): minor literature review and case report. Dermatol Ther 2021; 35:e15291. [PMID: 34962036 DOI: 10.1111/dth.15291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2021] [Revised: 12/13/2021] [Accepted: 12/26/2021] [Indexed: 11/29/2022]
Affiliation(s)
- Maria Cristina Pedrazini
- Professor - Department of Dental Sciences - São Leopoldo Mandic Research Center., Brazil.,Doctoral Student - Department of Biosciences - Piracicaba Dental School - FOP - UNICAMP - Campinas - São Paulo State, Brazil
| | - Mariliza Henrique da Silva
- Infectologist - Department of Infectology Diagnosis - IST/AIDS State Program, ITD/AIDS Reference and Training Center - São Paulo São Paulo State, Brazil
| | - Francisco Carlos Groppo
- Full Professor - Department of Biosciences - Piracicaba Dental School - FOP - UNICAMP - Campinas - São Paulo State, Brazil
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