1
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Winkler CW, Evans AB, Carmody AB, Lack JB, Woods TA, Peterson KE. C-C motif chemokine receptor 2 and 7 synergistically control inflammatory monocyte recruitment but the infecting virus dictates monocyte function in the brain. Commun Biol 2024; 7:494. [PMID: 38658802 PMCID: PMC11043336 DOI: 10.1038/s42003-024-06178-6] [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: 03/29/2023] [Accepted: 04/10/2024] [Indexed: 04/26/2024] Open
Abstract
Inflammatory monocytes (iMO) are recruited from the bone marrow to the brain during viral encephalitis. C-C motif chemokine receptor (CCR) 2 deficiency substantially reduces iMO recruitment for most, but not all encephalitic viruses. Here we show CCR7 acts synergistically with CCR2 to control this process. Following Herpes simplex virus type-1 (HSV-1), or La Crosse virus (LACV) infection, we find iMO proportions are reduced by approximately half in either Ccr2 or Ccr7 knockout mice compared to control mice. However, Ccr2/Ccr7 double knockouts eliminate iMO recruitment following infection with either virus, indicating these receptors together control iMO recruitment. We also find that LACV induces a more robust iMO recruitment than HSV-1. However, unlike iMOs in HSV-1 infection, LACV-recruited iMOs do not influence neurological disease development. LACV-induced iMOs have higher expression of proinflammatory and proapoptotic but reduced mitotic, phagocytic and phagolysosomal transcripts compared to HSV-1-induced iMOs. Thus, virus-specific activation of iMOs affects their recruitment, activation, and function.
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MESH Headings
- Animals
- Receptors, CCR2/metabolism
- Receptors, CCR2/genetics
- Mice
- Monocytes/immunology
- Monocytes/metabolism
- Monocytes/virology
- Mice, Knockout
- Brain/virology
- Brain/metabolism
- Brain/immunology
- Herpesvirus 1, Human/physiology
- La Crosse virus/genetics
- La Crosse virus/physiology
- Receptors, CCR7/metabolism
- Receptors, CCR7/genetics
- Encephalitis, California/virology
- Encephalitis, California/genetics
- Encephalitis, California/metabolism
- Encephalitis, California/immunology
- Mice, Inbred C57BL
- Inflammation/metabolism
- Inflammation/virology
- Female
- Male
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Affiliation(s)
- Clayton W Winkler
- Neuroimmunology Section, Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, 59840, USA.
| | - Alyssa B Evans
- Neuroimmunology Section, Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, 59840, USA
- Department of Microbiology and Cell Biology, Montana State University, Bozeman, MT, USA
| | - Aaron B Carmody
- Research Technologies Branch, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, USA
| | - Justin B Lack
- NIAID Collaborative Bioinformatics Resource, National Institutes of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Tyson A Woods
- Neuroimmunology Section, Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, 59840, USA
| | - Karin E Peterson
- Neuroimmunology Section, Laboratory of Neurological Infections and Immunity, Rocky Mountain Laboratories, Department of Intramural Research, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Hamilton, MT, 59840, USA
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2
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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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3
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Duarte LF, Gatica S, Castillo A, Kalergis AM, Bueno SM, Riedel CA, González PA. Is there a role for herpes simplex virus type 1 in multiple sclerosis? Microbes Infect 2022; 25:105084. [PMID: 36586461 DOI: 10.1016/j.micinf.2022.105084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 12/15/2022] [Accepted: 12/21/2022] [Indexed: 12/29/2022]
Abstract
Numerous studies relate the onset and severity of multiple sclerosis (MS) with viral infections. Herpes simplex virus type 1 (HSV-1), which is neurotropic and highly prevalent in the brain of healthy individuals, has been proposed to relate to MS. Here, we review and discuss the reported connections between HSV-1 and MS.
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Affiliation(s)
- Luisa F Duarte
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de La Vida, Universidad Andres Bello, Santiago, Chile
| | - Sebastian Gatica
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de La Vida, Universidad Andres Bello, Santiago, Chile
| | - Almendra Castillo
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de La Vida, Universidad Andres Bello, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile; Departamento de Endocrinología, Escuela de Medicina, Facultad de Medicina, Pontificia Universidad Católica, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile
| | - Claudia A Riedel
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias de La Vida, Universidad Andres Bello, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Chile.
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4
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Kang KD, Bernstock JD, Totsch SK, Gary SE, Rocco A, Nan L, Li R, Etminan T, Han X, Beierle EA, Eisemann T, Wechsler-Reya RJ, Bae S, Whitley R, Yancey Gillespie G, Markert JM, Friedman GK. Safety and Efficacy of Intraventricular Immunovirotherapy with Oncolytic HSV-1 for CNS Cancers. Clin Cancer Res 2022; 28:5419-5430. [PMID: 36239623 PMCID: PMC9771977 DOI: 10.1158/1078-0432.ccr-22-1382] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 09/12/2022] [Accepted: 10/12/2022] [Indexed: 01/24/2023]
Abstract
PURPOSE Oncolytic virotherapy with herpes simplex virus-1 (HSV) has shown promise for the treatment of pediatric and adult brain tumors; however, completed and ongoing clinical trials have utilized intratumoral/peritumoral oncolytic HSV (oHSV) inoculation due to intraventricular/intrathecal toxicity concerns. Intratumoral delivery requires an invasive neurosurgical procedure, limits repeat injections, and precludes direct targeting of metastatic and leptomeningeal disease. To address these limitations, we determined causes of toxicity from intraventricular oHSV and established methods for mitigating toxicity to treat disseminated brain tumors in mice. EXPERIMENTAL DESIGN HSV-sensitive CBA/J mice received intraventricular vehicle, inactivated oHSV, or treatment doses (1×107 plaque-forming units) of oHSV, and toxicity was assessed by weight loss and IHC. Protective strategies to reduce oHSV toxicity, including intraventricular low-dose oHSV or interferon inducer polyinosinic-polycytidylic acid (poly I:C) prior to oHSV treatment dose, were evaluated and then utilized to assess intraventricular oHSV treatment of multiple models of disseminated CNS disease. RESULTS A standard treatment dose of intraventricular oHSV damaged ependymal cells via virus replication and induction of CD8+ T cells, whereas vehicle or inactivated virus resulted in no toxicity. Subsequent doses of intraventricular oHSV caused little additional toxicity. Interferon induction with phosphorylation of eukaryotic initiation factor-2α (eIF2α) via intraventricular pretreatment with low-dose oHSV or poly I:C mitigated ependyma toxicity. This approach enabled the safe delivery of multiple treatment doses of clinically relevant oHSV G207 and prolonged survival in disseminated brain tumor models. CONCLUSIONS Toxicity from intraventricular oHSV can be mitigated, resulting in therapeutic benefit. These data support the clinical translation of intraventricular G207.
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Affiliation(s)
- Kyung-Don Kang
- Department of Pediatrics, Division of Pediatric Hematology
and Oncology, University of Alabama at Birmingham; Birmingham, AL, USA
| | - Joshua D. Bernstock
- Department of Pediatrics, Division of Pediatric Hematology
and Oncology, University of Alabama at Birmingham; Birmingham, AL, USA,Department of Neurosurgery, Brigham and Women’s
Hospital, Harvard University; Boston, MA, USA,Corresponding authors: Joshua D.
Bernstock MD, PhD, MPH, Department of Neurosurgery
- Harvard Medical School,
Brigham and Women’s Hospital
- Boston Children’s Hospital, Hale
Building
- 60 Fenwood Road
- Boston, MA 02115, USA, P: 914.419.7749
- F:
617.713.3050
- ; Gregory K. Friedman,
MD, Department of Pediatrics, University of Alabama at Birmingham, 1600 7th Ave
S, Lowder 512, Birmingham, AL 35233, USA, P: 205.638.9285
- F: 205.975.1941
| | - Stacie K. Totsch
- Department of Pediatrics, Division of Pediatric Hematology
and Oncology, University of Alabama at Birmingham; Birmingham, AL, USA
| | - Sam E. Gary
- Department of Pediatrics, Division of Pediatric Hematology
and Oncology, University of Alabama at Birmingham; Birmingham, AL, USA,Medical Scientist Training Program, University of Alabama
at Birmingham, Birmingham, AL, USA
| | - Abbey Rocco
- Department of Pediatrics, Division of Pediatric Hematology
and Oncology, University of Alabama at Birmingham; Birmingham, AL, USA
| | - Li Nan
- Department of Pediatrics, Division of Pediatric Hematology
and Oncology, University of Alabama at Birmingham; Birmingham, AL, USA
| | - Rong Li
- Department of Pathology, Children’s of Alabama;
Birmingham, AL, USA
| | - Tina Etminan
- Department of Pediatrics, Division of Pediatric Hematology
and Oncology, University of Alabama at Birmingham; Birmingham, AL, USA
| | - Xiaosi Han
- Department of Neurology, Division of Neuro-Oncology,
University of Alabama at Birmingham; Birmingham, AL, USA
| | | | - Tanja Eisemann
- Sanford Burnham Prebys Medical Discovery Institute; La
Jolla, CA, USA
| | | | - Sejong Bae
- Department of Medicine, Division of Preventative Medicine,
University of Alabama at Birmingham; Birmingham, AL, USA
| | - Richard Whitley
- Department of Pediatrics, Division of Infectious Diseases,
University of Alabama at Birmingham; Birmingham, AL, USA
| | - G. Yancey Gillespie
- Department of Neurosurgery, University of Alabama at
Birmingham; Birmingham, AL, USA
| | - James M. Markert
- Department of Neurosurgery, University of Alabama at
Birmingham; Birmingham, AL, USA
| | - Gregory K. Friedman
- Department of Pediatrics, Division of Pediatric Hematology
and Oncology, University of Alabama at Birmingham; Birmingham, AL, USA,Department of Neurosurgery, University of Alabama at
Birmingham; Birmingham, AL, USA,Corresponding authors: Joshua D.
Bernstock MD, PhD, MPH, Department of Neurosurgery
- Harvard Medical School,
Brigham and Women’s Hospital
- Boston Children’s Hospital, Hale
Building
- 60 Fenwood Road
- Boston, MA 02115, USA, P: 914.419.7749
- F:
617.713.3050
- ; Gregory K. Friedman,
MD, Department of Pediatrics, University of Alabama at Birmingham, 1600 7th Ave
S, Lowder 512, Birmingham, AL 35233, USA, P: 205.638.9285
- F: 205.975.1941
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5
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Stress and viral insults do not trigger E200K PrP conversion in human cerebral organoids. PLoS One 2022; 17:e0277051. [PMID: 36301953 PMCID: PMC9612459 DOI: 10.1371/journal.pone.0277051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 10/18/2022] [Indexed: 12/03/2022] Open
Abstract
Prion diseases are a group of rare, transmissible, and invariably fatal neurodegenerative diseases that affect both humans and animals. The cause of these diseases is misfolding of the prion protein into pathological isoforms called prions. Of all human prion diseases, 10-15% of cases are genetic and the E200K mutation, which causes familial Creutzfeldt-Jakob disease (CJD), is the most prevalent. For both sporadic and genetic disease, it remains uncertain as to how initial protein misfolding is triggered. Prior studies have linked protein misfolding with oxidative stress insults, deregulated interactions with cellular cofactors, and viral infections. Our previous work developed a cerebral organoid (CO) model using human induced pluripotent stem cells containing the E200K mutation. COs are three-dimensional human neural tissues that permit the study of host genetics and environmental factors that contribute to disease onset. Isogenically matched COs with and without the E200K mutation were used to investigate the propensity of E200K PrP to misfold following cellular insults associated with oxidative stress. Since viral infections have also been associated with oxidative stress and neurodegenerative diseases, we additionally investigated the influence of Herpes Simplex Type-1 virus (HSV1), a neurotropic virus that establishes life-long latent infection in its host, on E200K PrP misfolding. While COs proved to be highly infectable with HSV1, neither acute nor latent infection, or direct oxidative stress insult, resulted in evidence of E200K prion misfolding. We conclude that misfolding into seeding-active PrP species is not readily induced by oxidative stress or HSV1 in our organoid system.
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6
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Yun H, Yin XT, Stuart PM, St Leger AJ. Sensory Nerve Retraction and Sympathetic Nerve Innervation Contribute to Immunopathology of Murine Recurrent Herpes Stromal Keratitis. Invest Ophthalmol Vis Sci 2022; 63:4. [PMID: 35103749 PMCID: PMC8819360 DOI: 10.1167/iovs.63.2.4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Purpose Herpes stromal keratitis (HSK) represents a spectrum of pathologies which is caused by herpes simplex virus type 1 (HSV-1) infection and is considered a leading cause of infectious blindness. HSV-1 infects corneal sensory nerves and establishes latency in the trigeminal ganglion (TG). Recently, retraction of sensory nerves and replacement with “unsensing” sympathetic nerves was identified as a critical contributor of HSK in a mouse model where corneal pathology is caused by primary infection. This resulted in the loss of blink reflex, corneal desiccation, and exacerbation of inflammation leading to corneal opacity. Despite this, it was unclear whether inflammation associated with viral reactivation was sufficient to initiate this cascade of events. Methods We examined viral reactivation and corneal pathology in a mouse model with recurrent HSK by infecting the cornea with HSV-1 (McKrae) and transferring (intravenous [IV]) human sera to establish primary infection without discernible disease and then exposed the cornea to UV-B light to induce viral reactivation. Results UV-B light induced viral reactivation from latency in 100% of mice as measured by HSV-1 antigen deposition in the cornea. Further, unlike conventional HSK models, viral reactivation resulted in focal retraction of sensory nerves and corneal opacity. Dependent on CD4+ T cells, inflammation foci were innervated by sympathetic nerves. Conclusions Collectively, our data reveal that sectoral corneal sensory nerve retraction and replacement of sympathetic nerves were involved in the progressive pathology that is dependent on CD4+ T cells after viral reactivation from HSV-1 latency in the UV-B induced recurrent HSK mouse model.
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Affiliation(s)
- Hongmin Yun
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
| | - Xiao-Tang Yin
- Department of Ophthalmology, Saint Louis University, St. Louis, Missouri, United States
| | - Patrick M Stuart
- Department of Ophthalmology, Saint Louis University, St. Louis, Missouri, United States
| | - Anthony J St Leger
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States.,Department of Immunology, University of Pittsburgh, Pittsburgh, Pennsylvania, United States
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7
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Satpathy G, Behera HS, Sharma A, Mishra AK, Mishra D, Sharma N, Tandon R, Agarwal T, Titiyal JS. A 20‐year experience of ocular herpes virus detection using immunofluorescence and polymerase chain reaction. Clin Exp Optom 2021; 101:648-651. [DOI: 10.1111/cxo.12669] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 12/06/2017] [Accepted: 12/15/2017] [Indexed: 11/27/2022] Open
Affiliation(s)
- Gita Satpathy
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
| | - Himansu S Behera
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
| | - Anjana Sharma
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
| | - Abhisek K Mishra
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
| | - Deepanshi Mishra
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
| | - Namrata Sharma
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
| | - Radhika Tandon
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
| | - Tushar Agarwal
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
| | - Jeewan S Titiyal
- Department of Ocular Microbiology, Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India,
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8
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Kok L, Dijkgraaf FE, Urbanus J, Bresser K, Vredevoogd DW, Cardoso RF, Perié L, Beltman JB, Schumacher TN. A committed tissue-resident memory T cell precursor within the circulating CD8+ effector T cell pool. J Exp Med 2021; 217:151985. [PMID: 32728699 PMCID: PMC7537386 DOI: 10.1084/jem.20191711] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 05/01/2020] [Accepted: 06/16/2020] [Indexed: 11/29/2022] Open
Abstract
An increasing body of evidence emphasizes the role of tissue-resident memory T cells (TRM) in the defense against recurring pathogens and malignant neoplasms. However, little is known with regard to the origin of these cells and their kinship to other CD8+ T cell compartments. To address this issue, we followed the antigen-specific progeny of individual naive CD8+ T cells to the T effector (TEFF), T circulating memory (TCIRCM), and TRM pools by lineage-tracing and single-cell transcriptome analysis. We demonstrate that a subset of T cell clones possesses a heightened capacity to form TRM, and that enriched expression of TRM–fate-associated genes is already apparent in the circulating TEFF offspring of such clones. In addition, we demonstrate that the capacity to generate TRM is permanently imprinted at the clonal level, before skin entry. Collectively, these data provide compelling evidence for early stage TRM fate decisions and the existence of committed TRM precursor cells in the circulatory TEFF compartment.
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Affiliation(s)
- Lianne Kok
- Division of Molecular Oncology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Feline E Dijkgraaf
- Division of Molecular Oncology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Jos Urbanus
- Division of Molecular Oncology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Kaspar Bresser
- Division of Molecular Oncology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - David W Vredevoogd
- Division of Molecular Oncology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Rebeca F Cardoso
- Division of Molecular Oncology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands
| | - Leïla Perié
- Institut Curie, Université Paris Sciences et Lettres Research University, Centre National de la Recherche Scientifique UMR168, Paris, France
| | - Joost B Beltman
- Division of Drug Discovery & Safety, Leiden Academic Centre for Drug Research, Leiden University, Leiden, Netherlands
| | - Ton N Schumacher
- Division of Molecular Oncology & Immunology, Oncode Institute, Netherlands Cancer Institute, Amsterdam, Netherlands.,Department of Immunohematology and Blood Transfusion, Leiden University Medical Center, Leiden, Netherlands
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9
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Induction of Durable Antitumor Response by a Novel Oncolytic Herpesvirus Expressing Multiple Immunomodulatory Transgenes. Biomedicines 2020; 8:biomedicines8110484. [PMID: 33182232 PMCID: PMC7695276 DOI: 10.3390/biomedicines8110484] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Revised: 10/28/2020] [Accepted: 11/04/2020] [Indexed: 12/17/2022] Open
Abstract
Oncolytic virotherapy is a promising new tool for cancer treatment, but direct lytic destruction of tumor cells is not sufficient and must be accompanied by strong immune activation to elicit anti-tumor immunity. We report here the creation of a novel replication-competent recombinant oncolytic herpes simplex virus type 1 (VG161) that carries genes coding for IL-12, IL-15, and IL-15 receptor alpha subunit, along with a peptide fusion protein capable of disrupting PD-1/PD-L1 interactions. The VG161 virus replicates efficiently and exhibits robust cytotoxicity in multiple tumor cell lines. Moreover, the encoded cytokines and the PD-L1 blocking peptide work cooperatively to boost immune cell function. In vivo testing in syngeneic CT26 and A20 tumor models reveals superior efficacy when compared to a backbone virus that does not express exogenous genes. Intratumoral injection of VG161 induces abscopal responses in non-injected distal tumors and grants resistance to tumor re-challenge. The robust anti-tumor effect of VG161 is associated with T cell and NK cell tumor infiltration, expression of Th1 associated genes in the injection site, and increased frequency of splenic tumor-specific T cells. VG161 also displayed a superb safety profile in GLP acute and repeated injection toxicity studies performed using cynomolgus monkeys. Overall, we demonstrate that VG161 can induce robust oncolysis and stimulate a robust anti-tumor immune response without sacrificing safety.
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10
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Xia L, Tan T, Li Y, Zhong Q, Shi M. Blockade of IL-27 signaling ameliorates herpes stromal keratitis with upregulated CD4 + Foxp3 + regulatory T cells influx in mice. Indian J Ophthalmol 2020; 67:1821-1828. [PMID: 31638041 PMCID: PMC6836587 DOI: 10.4103/ijo.ijo_1780_18] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Purpose: The purpose of this study was to investigate the production of IL-27 p28 and EBI3 in the ocular inflammatory sites, and the role of IL-27 signaling in a model of HSV-1 induced herpetic stromal keratitis (HSK). Methods: The BALB/c mice were injected intraperitoneally (24 h before infection) with anti-IL-27 antibody or IgG antibody as control, infected with HSV-1 via corneal scarification, and then injected intraperitoneally with anti-IL-27 antibody or IgG antibody at 1, 3, and 5 days postinfection. Slit lamp and histopathology were used to assess disease outcome. The levels of IL-27 p28 and EBI3 in corneas were determined by western blotting and immunofluorescence. Furthermore, viral titers were determined, and immune cell infiltrates were collected and analyzed by flow cytometry. Results: We found that the levels of IL-27 p28 and EBI3 in corneas were elevated significantly at the peak of HSK, and both of them were expressed simultaneously in the epithelium, stroma, and endothelium of corneas. In the group of anti-IL-27 treatment, the severity of the corneal lesion and CD4+ T cells infiltration were significantly decreased, and the percentage of CD4+ Foxp3+ Tregs was upregulated markedly in the spleen, DLNs and cornea of HSK mice compared to IgG treatment. Conclusion: These results provided evidence that IL-27 as a pathogenic pro-inflammatory cytokine controlled CD4+ Foxp3+ Tregs production in HSK, which ultimately resulted in promoting the progression of HSK and poor prognosis.
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Affiliation(s)
- Likun Xia
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, People's Republic of China
| | - Tianchang Tan
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, People's Republic of China
| | - Yang Li
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, People's Republic of China
| | - Qiuyue Zhong
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, People's Republic of China
| | - Mei Shi
- Department of Ophthalmology, Shengjing Hospital of China Medical University, Shenyang, Liaoning Province, People's Republic of China
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11
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Alandijany T. Host Intrinsic and Innate Intracellular Immunity During Herpes Simplex Virus Type 1 (HSV-1) Infection. Front Microbiol 2019; 10:2611. [PMID: 31781083 PMCID: PMC6856869 DOI: 10.3389/fmicb.2019.02611] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/28/2019] [Indexed: 12/20/2022] Open
Abstract
When host cells are invaded by viruses, they deploy multifaceted intracellular defense mechanisms to control infections and limit the damage they may cause. Host intracellular antiviral immunity can be classified into two main branches: (i) intrinsic immunity, an interferon (IFN)-independent antiviral response mediated by constitutively expressed cellular proteins (so-called intrinsic host restriction factors); and (ii) innate immunity, an IFN-dependent antiviral response conferred by IFN-stimulated gene (ISG) products, which are (as indicated by their name) upregulated in response to IFN secretion following the recognition of pathogen-associated molecular patterns (PAMPs) by host pattern recognition receptors (PRRs). Recent evidence has demonstrated temporal regulation and specific viral requirements for the induction of these two arms of immunity during herpes simplex virus type 1 (HSV-1) infection. Moreover, they exert differential antiviral effects to control viral replication. Although they are distinct from one another, the words "intrinsic" and "innate" have been interchangeably and/or simultaneously used in the field of virology. Hence, the aims of this review are to (1) elucidate the current knowledge about host intrinsic and innate immunity during HSV-1 infection, (2) clarify the recent advances in the understanding of their regulation and address the distinctions between them with respect to their induction requirements and effects on viral infection, and (3) highlight the key roles of the viral E3 ubiquitin ligase ICP0 in counteracting both aspects of immunity. This review emphasizes that intrinsic and innate immunity are temporally and functionally distinct arms of host intracellular immunity during HSV-1 infection; the findings are likely pertinent to other clinically important viral infections.
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Affiliation(s)
- Thamir Alandijany
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
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12
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Safety and efficacy of oncolytic HSV-1 G207 inoculated into the cerebellum of mice. Cancer Gene Ther 2019; 27:246-255. [PMID: 30918335 DOI: 10.1038/s41417-019-0091-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 03/12/2019] [Indexed: 12/25/2022]
Abstract
Primary malignant central nervous system (CNS) tumors are the leading cause of childhood cancer-related death and morbidity. While advances in surgery, radiation, and chemotherapy have improved the survival rates in children with malignant brain tumors, mortality persists in certain subpopulations and current therapies are associated with extreme morbidity. This is especially true for children with malignant infratentorial tumors. Accordingly, G207, a genetically engineered herpes simplex virus (HSV-1) capable of selectively targeting cancer cells has emerged as a promising therapeutic option for this patient population. Herein, we demonstrate that cerebellar inoculation of G207 was systemically non-toxic in an immunocompetent, HSV-1 sensitive mouse strain (CBA/J). Mice had neither abnormal brain/organ pathology nor evidence of G207 replication by immunohistochemistry at days 7 and 30 after cerebellar G207 inoculation. While a minute amount viral DNA was recovered in the cerebellum and brainstem of mice at day 7, no viral DNA persisted at day 30. Critically, G207 delivered to the cerebellum was able to target/treat the highly aggressive MYC-overexpressed group 3 murine medulloblastoma increasing survival vs controls. These results provide critical safety and efficacy data to support the translation of G207 for pediatric clinical trials in intractable cerebellar malignancies.
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13
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Cabrera JR, Manivanh R, North BJ, Leib DA. The ESCRT-Related ATPase Vps4 Is Modulated by Interferon during Herpes Simplex Virus 1 Infection. mBio 2019; 10:e02567-18. [PMID: 30837340 PMCID: PMC6401484 DOI: 10.1128/mbio.02567-18] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 01/14/2019] [Indexed: 01/03/2023] Open
Abstract
Interferons (IFNs) and autophagy are critical neuronal defenses against viral infection. IFNs alter neuronal autophagy by promoting the accumulation of IFN-dependent LC3-decorated autophagic structures, termed LC3 clusters. Here, we analyzed LC3 clusters in sensory ganglia following herpes simplex virus 1 (HSV-1) infection. In the vicinity of acutely infected neurons, antigen-negative neurons contained structures resembling accumulated autophagosomes and autolysosomes that culminated in LC3 clusters. This accumulation reflects a delayed completion of autophagy. The endosomal sorting complexes required for transport (ESCRT) machinery participates in autophagosome closure and is also required for HSV-1 replication. In this study, our results showed that HSV-1 infection in vivo and in primary neurons caused a decrease in Vps4 (a key ESCRT pathway ATPase) RNA and protein with concomitant Stat1 activation and LC3 cluster induction. We also observed that IFNs were sufficient to decrease RNA and protein levels of Vps4 in primary neurons and in other cell types. The accumulation of ubiquitin was also observed at the LC3 cluster sites. Together, our results show that IFNs modulate the ESCRT machinery in neurons in response to HSV-1 infections.IMPORTANCE Neurons rely on IFNs and autophagy as major defenses against viral infections, and HSV must overcome such defenses in order to replicate. In addition to controlling host immunity, HSV must also control host membranes in order to complete its life cycle. HSV uses the host ESCRT membrane scission machinery for viral production and transport. Here we present evidence of a new IFN-dependent mechanism used by the host to prevent ESCRT subversion by HSV. This activity also impacts the dynamics of autophagy, possibly explaining the presence of recently described LC3 clusters in the HSV-infected nervous system. The induced accumulations of ubiquitin observed in these LC3 clusters resembled those observed in certain neurodegenerative diseases, suggesting possible mechanistic parallels between these conditions.
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Affiliation(s)
- Jorge Ruben Cabrera
- Department of Microbiology and Immunology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire, USA
| | - Richard Manivanh
- Department of Microbiology and Immunology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire, USA
| | - Brian J North
- Department of Microbiology and Immunology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire, USA
| | - David A Leib
- Department of Microbiology and Immunology, Geisel School of Medicine, Dartmouth College, Lebanon, New Hampshire, USA
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14
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Xu B, Ma R, Russell L, Yoo JY, Han J, Cui H, Yi P, Zhang J, Nakashima H, Dai H, Chiocca EA, Kaur B, Caligiuri MA, Yu J. An oncolytic herpesvirus expressing E-cadherin improves survival in mouse models of glioblastoma. Nat Biotechnol 2018; 37:nbt.4302. [PMID: 30475349 PMCID: PMC6535376 DOI: 10.1038/nbt.4302] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Accepted: 10/22/2018] [Indexed: 12/26/2022]
Abstract
The efficacy of oncolytic herpes simplex virus (oHSV) is limited by rapid viral clearance by innate immune effector cells and poor intratumoral viral spread. We combine two approaches to overcome these barriers: inhibition of natural killer (NK) cells and enhancement of intratumoral viral spread. We engineered an oHSV to express CDH1, encoding E-cadherin, an adherent molecule and a ligand for KLRG1, an inhibitory receptor expressed on NK cells. In vitro, infection with this engineered virus, named OV-CDH1, induced high surface E-cadherin expression on infected glioblastoma (GBM) cells, which typically lack endogenous E-cadherin. Ectopically expressed E-cadherin enhanced the spread of OV-CDH1 by facilitating cell-to-cell infection and viral entry and reduced viral clearance by selectively protecting OV-CDH1-infected cells from KLRG1+ NK cell killing. In vivo, OV-CDH1 treatment substantially prolonged the survival in GBM-bearing mouse models, primarily because of improved viral spread rather than inhibition of NK cell activity. Thus, virus-induced overexpression of E-cadherin may be a generalizable strategy for improving cancer virotherapy.
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Affiliation(s)
- Bo Xu
- Department of Internal Medicine, Division of Hematology, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
- Third Affiliated Hospital, Army Medical University, Chongqing 400042, China
| | - Rui Ma
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Luke Russell
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Ji Young Yoo
- Department of Neurosurgery, The Vivian L. Smith University of Texas, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Jianfeng Han
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - Hanwei Cui
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
- Third Affiliated Hospital, Army Medical University, Chongqing 400042, China
| | - Ping Yi
- Third Affiliated Hospital, Army Medical University, Chongqing 400042, China
| | - Jianying Zhang
- Department of Information Sciences, Division of Biostatistics, City of Hope National Medical Center, Duarte, CA 91010
| | - Hiroshi Nakashima
- Department of Neurosurgery, Brigham and Women’s Hospital and Harvey Cushing Neuro-oncology Laboratories, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Hongsheng Dai
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
| | - E. Antonio Chiocca
- Department of Neurosurgery, Brigham and Women’s Hospital and Harvey Cushing Neuro-oncology Laboratories, Harvard Medical School, Boston, Massachusetts 02115, USA
| | - Balveen Kaur
- Department of Neurosurgery, The Vivian L. Smith University of Texas, University of Texas Health Science Center at Houston, Houston, TX 77030, USA
| | - Michael A Caligiuri
- Hematologic Malignancies and Stem Cell Transplantation Institute, City of Hope National Medical Center, Duarte, California 91010, USA
- Department of Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, California 91010, USA
| | - Jianhua Yu
- Department of Internal Medicine, Division of Hematology, College of Medicine, The Ohio State University, Columbus, Ohio 43210, USA
- The Ohio State University Comprehensive Cancer Center, Columbus, Ohio 43210, USA
- Hematologic Malignancies and Stem Cell Transplantation Institute, City of Hope National Medical Center, Duarte, California 91010, USA
- Department of Hematology & Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, California 91010, USA
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15
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Nakashima H, Nguyen T, Kasai K, Passaro C, Ito H, Goins WF, Shaikh I, Erdelyi R, Nishihara R, Nakano I, Reardon DA, Anderson AC, Kuchroo V, Chiocca EA. Toxicity and Efficacy of a Novel GADD34-expressing Oncolytic HSV-1 for the Treatment of Experimental Glioblastoma. Clin Cancer Res 2018; 24:2574-2584. [PMID: 29511029 DOI: 10.1158/1078-0432.ccr-17-2954] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 01/18/2018] [Accepted: 03/01/2018] [Indexed: 02/07/2023]
Abstract
Purpose: Glioblastoma (GBM) is the most common primary central nervous system cancer in adults. Oncolytic HSV-1 (oHSV) is the first FDA-approved gene therapy approach for the treatment of malignant melanoma. For GBM, oHSVs need to be engineered to replicate within and be toxic to the glial tumor but not to normal brain parenchymal cells. We have thus engineered a novel oHSV to achieve these objectives.Experimental Design: NG34 is an attenuated HSV-1 with deletions in the genes encoding viral ICP6 and ICP34.5. These mutations suppress virus replication in nondividing brain neurons. NG34 expresses the human GADD34 gene under transcriptional control of a cellular Nestin gene promoter/enhancer element, whose expression occurs selectively in GBM. In vitro cytotoxicity assay and survival studies with mouse models were performed to evaluate therapeutic potency of NG34 against glioblastoma. In vivo neurotoxicity evaluation of NG34 was tested by intracerebral inoculation.Results: NG34 replicates in GBM cells in vitro with similar kinetics as those exhibited by an oHSV that is currently in clinical trials (rQNestin34.5). Dose-response cytotoxicity of NG34 in human GBM panels was equivalent to or improved compared with rQNestin34.5. The in vivo efficacy of NG34 against two human orthotopic GBM models in athymic mice was similar to that of rQNestin34.5, whereas intracerebral injection of NG34 in the brains of immunocompetent and athymic mice showed significantly better tolerability. NG34 was also effective in a syngeneic mouse glioblastoma model.Conclusions: A novel oHSV encoding GADD34 is efficacious and relatively nontoxic in mouse models of GBM. Clin Cancer Res; 24(11); 2574-84. ©2018 AACR.
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Affiliation(s)
- Hiroshi Nakashima
- Harvey W. Cushing Neuro-oncology Laboratories (HCNL), Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts.
| | - Tran Nguyen
- Harvey W. Cushing Neuro-oncology Laboratories (HCNL), Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - Kazue Kasai
- Harvey W. Cushing Neuro-oncology Laboratories (HCNL), Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - Carmela Passaro
- Harvey W. Cushing Neuro-oncology Laboratories (HCNL), Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - Hirotaka Ito
- Harvey W. Cushing Neuro-oncology Laboratories (HCNL), Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - William F Goins
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Imran Shaikh
- Department of Neurological Surgery, The Ohio State University, Columbus, Ohio
| | - Ronald Erdelyi
- Department of Neurological Surgery, The Ohio State University, Columbus, Ohio
| | - Reiko Nishihara
- Department of Pathology, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - Ichiro Nakano
- Department of Neurological Surgery, The Ohio State University, Columbus, Ohio
| | - David A Reardon
- Center for Neuro-Oncology, Dana-Farber Cancer Institute, and Brigham and Women's Hospital, Boston, Massachusetts
| | - Ana C Anderson
- Evergrande Center for Immunologic Diseases and Ann Romney Center for Neurologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - Vijay Kuchroo
- Evergrande Center for Immunologic Diseases and Ann Romney Center for Neurologic Diseases, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts
| | - E Antonio Chiocca
- Harvey W. Cushing Neuro-oncology Laboratories (HCNL), Department of Neurosurgery, Harvard Medical School and Brigham and Women's Hospital, Boston, Massachusetts.
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16
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Egan KP, Allen AG, Wigdahl B, Jennings SR. Modeling the pathology, immune responses, and kinetics of HSV-1 replication in the lip scarification model. Virology 2018; 514:124-133. [DOI: 10.1016/j.virol.2017.11.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 11/01/2017] [Accepted: 11/13/2017] [Indexed: 12/21/2022]
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17
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Richards AL, Sollars PJ, Pitts JD, Stults AM, Heldwein EE, Pickard GE, Smith GA. The pUL37 tegument protein guides alpha-herpesvirus retrograde axonal transport to promote neuroinvasion. PLoS Pathog 2017; 13:e1006741. [PMID: 29216315 PMCID: PMC5749899 DOI: 10.1371/journal.ppat.1006741] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2017] [Revised: 01/02/2018] [Accepted: 11/10/2017] [Indexed: 01/07/2023] Open
Abstract
A hallmark property of the neurotropic alpha-herpesvirinae is the dissemination of infection to sensory and autonomic ganglia of the peripheral nervous system following an initial exposure at mucosal surfaces. The peripheral ganglia serve as the latent virus reservoir and the source of recurrent infections such as cold sores (herpes simplex virus type I) and shingles (varicella zoster virus). However, the means by which these viruses routinely invade the nervous system is not fully understood. We report that an internal virion component, the pUL37 tegument protein, has a surface region that is an essential neuroinvasion effector. Mutation of this region rendered herpes simplex virus type 1 (HSV-1) and pseudorabies virus (PRV) incapable of spreading by retrograde axonal transport to peripheral ganglia both in culture and animals. By monitoring the axonal transport of individual viral particles by time-lapse fluorescence microscopy, the mutant viruses were determined to lack the characteristic sustained intracellular capsid motion along microtubules that normally traffics capsids to the neural soma. Consistent with the axonal transport deficit, the mutant viruses did not reach sites of latency in peripheral ganglia, and were avirulent. Despite this, viral propagation in peripheral tissues and in cultured epithelial cell lines remained robust. Selective elimination of retrograde delivery to the nervous system has long been sought after as a means to develop vaccines against these ubiquitous, and sometimes devastating viruses. In support of this potential, we find that HSV-1 and PRV mutated in the effector region of pUL37 evoked effective vaccination against subsequent nervous system challenges and encephalitic disease. These findings demonstrate that retrograde axonal transport of the herpesviruses occurs by a virus-directed mechanism that operates by coordinating opposing microtubule motors to favor sustained retrograde delivery of the virus to the peripheral ganglia. The ability to selectively eliminate the retrograde axonal transport mechanism from these viruses will be useful in trans-synaptic mapping studies of the mammalian nervous system, and affords a new vaccination paradigm for human and veterinary neurotropic herpesviruses.
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MESH Headings
- Amino Acid Sequence
- Animals
- Axonal Transport/genetics
- Axonal Transport/physiology
- Axons/virology
- Ganglia/virology
- Genes, Viral
- Herpesvirus 1, Human/genetics
- Herpesvirus 1, Human/pathogenicity
- Herpesvirus 1, Human/physiology
- Herpesvirus 1, Suid/genetics
- Herpesvirus 1, Suid/pathogenicity
- Herpesvirus 1, Suid/physiology
- Host-Pathogen Interactions/genetics
- Host-Pathogen Interactions/physiology
- Humans
- Male
- Mice
- Mice, Inbred DBA
- Models, Molecular
- Mutation
- Neurons/virology
- Rats
- Rats, Long-Evans
- Viral Structural Proteins/chemistry
- Viral Structural Proteins/genetics
- Viral Structural Proteins/physiology
- Viral Vaccines/genetics
- Virulence/genetics
- Virulence/physiology
- Virus Release/genetics
- Virus Release/physiology
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Affiliation(s)
- Alexsia L. Richards
- Department of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Patricia J. Sollars
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
| | - Jared D. Pitts
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Austin M. Stults
- Department of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
| | - Ekaterina E. Heldwein
- Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts, United States of America
| | - Gary E. Pickard
- School of Veterinary Medicine and Biomedical Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, United States of America
- Department of Ophthalmology and Visual Sciences, University of Nebraska Medical Center, Omaha, Nebraska
| | - Gregory A. Smith
- Department of Microbiology-Immunology, Northwestern University Feinberg School of Medicine, Chicago, Illinois, United States of America
- * E-mail:
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18
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Cassady KA, Bauer DF, Roth J, Chambers MR, Shoeb T, Coleman J, Prichard M, Gillespie GY, Markert JM. Pre-clinical Assessment of C134, a Chimeric Oncolytic Herpes Simplex Virus, in Mice and Non-human Primates. MOLECULAR THERAPY-ONCOLYTICS 2017; 5:1-10. [PMID: 28345027 PMCID: PMC5363760 DOI: 10.1016/j.omto.2017.02.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 02/19/2017] [Indexed: 11/18/2022]
Abstract
Oncolytic herpes simplex virus (oHSV) type I constructs are investigational anti-neoplastic agents for a variety of malignancies, including malignant glioma. Clinical trials to date have supported the safety of these agents even when directly administered in the CNS. Traditional pre-clinical US Food and Drug Administration (FDA) toxicity studies for these agents have included the use of two species, generally including murine and primate studies. Recently, the FDA has decreased its requirement of non-human primates as an animal model for ethical reasons, especially for established viral systems where there are good alternative model systems. Here we present data demonstrating the safety of C134, a chimeric oHSV construct, in CBA mice as well as in a limited number of the HSV-sensitive non-human primate Aotus nancymaae as a proposed agent for clinical trials. These data, along with the previously conducted clinical trials of oHSV constructs, support the use of the CBA mouse model as sufficient for the pre-clinical toxicity studies of this agent. We summarize our experience with different HSV recombinants and differences between them using multiple assays to assess neurovirulence, as well as our experience with C134 in a limited number of A. nancymaae.
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Affiliation(s)
- Kevin A Cassady
- Department of Pediatrics, Research Institute Center for Childhood Cancer and Blood Disorders, Nationwide Children's Hospital, Columbus, OH 43212, USA; Ohio State University College of Medicine, Columbus, OH 43210, USA
| | - David F Bauer
- Department of Neurosurgery, University of Alabama, Birmingham, AL 35294, USA
| | - Justin Roth
- Department of Pediatrics, University of Alabama, Birmingham, AL 35294, USA
| | - Melissa R Chambers
- Department of Neurosurgery, University of Alabama, Birmingham, AL 35294, USA
| | - Trent Shoeb
- Department of Neurosurgery, University of Alabama, Birmingham, AL 35294, USA
| | - Jennifer Coleman
- Department of Neurosurgery, University of Alabama, Birmingham, AL 35294, USA
| | - Mark Prichard
- Department of Pediatrics, University of Alabama, Birmingham, AL 35294, USA
| | - G Yancey Gillespie
- Department of Neurosurgery, University of Alabama, Birmingham, AL 35294, USA; Department of Pediatrics, University of Alabama, Birmingham, AL 35294, USA; Department of Comparative Medicine, University of Alabama, Birmingham, AL 35294, USA
| | - James M Markert
- Department of Neurosurgery, University of Alabama, Birmingham, AL 35294, USA; Department of Pediatrics, University of Alabama, Birmingham, AL 35294, USA; Department of Comparative Medicine, University of Alabama, Birmingham, AL 35294, USA
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19
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20
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Bates M, Brantsaeter AB. Human cytomegalovirus (CMV) in Africa: a neglected but important pathogen. J Virus Erad 2016; 2:136-42. [PMID: 27482452 PMCID: PMC4967964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Abstract
In Africa, human cytomegalovirus (CMV) is an important pathogen in a diverse range of patient groups. Congenital CMV infection is common, and most children undergo primary infection during the first year of life. Preliminary studies suggest that these early primary CMV infections could have population-wide effects on growth and development. In most studies of adults, CMV seroprevalence is close to 100%, but some studies have found that significant minorities of adults are seronegative. CMV is a common cause of pneumonia and meningitis in hospitalised immunosuppressed patient groups, and CMV DNAemia may be an important marker of rapid progression and poor outcomes of HIV infection, despite roll-out of antiretroviral therapy (ART). Diagnosis and treatment of CMV-related disease is broadly neglected in Africa, and no randomised clinical trials of anti-CMV drugs have been conducted to date. Autopsy is rarely performed in Africa, but identifies CMV as a frequent pathogen when it is carried out. Here we review the available literature on CMV in Africa, primarily in adult patients, and discuss this in the context of contemporary understanding of CMV as a human pathogen.
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Affiliation(s)
- Matthew Bates
- HerpeZ,
University Teaching Hospital,
Lusaka,
Zambia
- University of Zambia and University College London Medical School (UNZA-UCLMS) Research and Training Programme,
University Teaching Hospital,
Lusaka,
Zambia
| | - Arne Broch Brantsaeter
- Department of Infectious Diseases and Department of Acute Medicine,
Oslo University Hospital Ullevål,
Oslo,
Norway
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21
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Von Willebrand Factor Gene Variants Associate with Herpes simplex Encephalitis. PLoS One 2016; 11:e0155832. [PMID: 27224245 PMCID: PMC4880288 DOI: 10.1371/journal.pone.0155832] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 05/04/2016] [Indexed: 01/24/2023] Open
Abstract
Herpes simplex encephalitis (HSE) is a rare complication of Herpes simplex virus type-1 infection. It results in severe parenchymal damage in the brain. Although viral latency in neurons is very common in the population, it remains unclear why certain individuals develop HSE. Here we explore potential host genetic variants predisposing to HSE. In order to investigate this we used a rat HSE model comparing the HSE susceptible SHR (Spontaneously Hypertensive Rats) with the asymptomatic infection of BN (Brown Norway). Notably, both strains have HSV-1 spread to the CNS at four days after infection. A genome wide linkage analysis of 29 infected HXB/BXH RILs (recombinant inbred lines-generated from the prior two strains), displayed variable susceptibility to HSE enabling the definition of a significant QTL (quantitative trait locus) named Hse6 towards the end of chromosome 4 (160.89-174Mb) containing the Vwf (von Willebrand factor) gene. This was the only gene in the QTL with both cis-regulation in the brain and included several non-synonymous SNPs (single nucleotide polymorphism). Intriguingly, in human chromosome 12 several SNPs within the intronic region between exon 43 and 44 of the VWF gene were associated with human HSE pathogenesis. In particular, rs917859 is nominally associated with an odds ratio of 1.5 (95% CI 1.11-2.02; p-value = 0.008) after genotyping in 115 HSE cases and 428 controls. Although there are possibly several genetic and environmental factors involved in development of HSE, our study identifies variants of the VWF gene as candidates for susceptibility in experimental and human HSE.
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To Infection and Beyond: The Multi-Pronged Anti-Cancer Mechanisms of Oncolytic Viruses. Viruses 2016; 8:v8020043. [PMID: 26861381 PMCID: PMC4776198 DOI: 10.3390/v8020043] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2015] [Revised: 01/17/2016] [Accepted: 02/01/2016] [Indexed: 12/12/2022] Open
Abstract
Over the past 1–2 decades we have witnessed a resurgence of efforts to therapeutically exploit the attributes of lytic viruses to infect and kill tumor cells while sparing normal cells. We now appreciate that the utility of viruses for treating cancer extends far beyond lytic cell death. Viruses are also capable of eliciting humoral and cellular innate and adaptive immune responses that may be directed not only at virus-infected cells but also at uninfected cancer cells. Here we review our current understanding of this bystander effect, and divide the mechanisms into lytic, cytokine, innate cellular, and adaptive phases. Knowing the key pathways and molecular players during virus infection in the context of the cancer microenvironment will be critical to devise strategies to maximize the therapeutic effects of oncolytic viroimmunotherapy.
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Russell TA, Stefanovic T, Tscharke DC. Engineering herpes simplex viruses by infection-transfection methods including recombination site targeting by CRISPR/Cas9 nucleases. J Virol Methods 2014; 213:18-25. [PMID: 25479355 DOI: 10.1016/j.jviromet.2014.11.009] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2014] [Revised: 11/20/2014] [Accepted: 11/25/2014] [Indexed: 11/18/2022]
Abstract
Herpes simplex viruses (HSVs) are frequent human pathogens and the ability to engineer these viruses underpins much research into their biology and pathogenesis. Often the ultimate aim is to produce a virus that has the desired phenotypic change and no additional alterations in characteristics. This requires methods that minimally disrupt the genome and, for insertions of foreign DNA, sites must be found that can be engineered without disrupting HSV gene function or expression. This study advances both of these requirements. Firstly, the use of homologous recombination between the virus genome and plasmids in mammalian cells is a reliable way to engineer HSV such that minimal genome changes are made. This has most frequently been achieved by cotransfection of plasmid and isolated viral genomic DNA, but an alternative is to supply the virus genome by infection in a transfection-infection method. Such approaches can also incorporate CRISPR/Cas9 genome engineering methods. Current descriptions of infection-transfection methods, either with or without the addition of CRISPR/Cas9 targeting, are limited in detail and the extent of optimization. In this study it was found that transfection efficiency and the length of homologous sequences improve the efficiency of recombination in these methods, but the targeting of the locus to be engineered by CRISPR/Cas9 nucleases has an overriding positive impact. Secondly, the intergenic space between UL26 and UL27 was reexamined as a site for the addition of foreign DNA and a position identified that allows insertions without compromising HSV growth in vitro or in vivo.
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Affiliation(s)
- Tiffany A Russell
- Research School of Biology, The Australian National University, Bldg #134 Linnaeus Way, Canberra, ACT 0200, Australia.
| | - Tijana Stefanovic
- Research School of Biology, The Australian National University, Bldg #134 Linnaeus Way, Canberra, ACT 0200, Australia
| | - David C Tscharke
- Research School of Biology, The Australian National University, Bldg #134 Linnaeus Way, Canberra, ACT 0200, Australia.
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Adamek M, Rakus KL, Brogden G, Matras M, Chyb J, Hirono I, Kondo H, Aoki T, Irnazarow I, Steinhagen D. Interaction between type I interferon and Cyprinid herpesvirus 3 in two genetic lines of common carp Cyprinus carpio. DISEASES OF AQUATIC ORGANISMS 2014; 111:107-118. [PMID: 25266898 DOI: 10.3354/dao02773] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cyprinid herpesvirus 3 (CyHV-3) infection in common carp Cyprinus carpio L. and its ornamental koi varieties can induce the severe systemic disease known as koi herpesvirus disease. This disease is characterised by a rapid replication and spreading of the virus through multiple organs and results in a fast onset of mortality (starting on Day 6 post infection) in up to 100% of infected fish. During the first phase of viral infections, type I interferons (IFNs) have generally been proven to be essential in inducing an innate immune response; however, very little is known about the type I IFN response to herpesviruses in fish. The aim of this work was to study the type I IFN responses during CyHV-3 infection in 2 genetically divergent lines of common carp which presented differing survival rates. Our results show that CyHV-3 induced a systemic type I IFN response in carp, and the magnitude of type I IFN expression is correlated with the virus load found in skin and head kidney. In this in vivo experimental setup, the level of type I IFN response cannot be linked with higher survival of carp during CyHV-3 infection.
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Affiliation(s)
- Mikołaj Adamek
- Fish Disease Research Unit, Centre of Infectious Diseases, University of Veterinary Medicine Hannover, Bünteweg 17, 30559 Hannover, Germany
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25
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El-Nahass E, El-Dakhly KM, El-Habashi N, Anwar SI, Sakai H, Hirata A, Okada A, Abo-Sakaya R, Fukushi H, Yanai T. Susceptibility of BALB/c-nu/nu mice and BALB/c mice to equine herpesvirus 9 infection. Vet Pathol 2013; 51:581-90. [PMID: 23804999 DOI: 10.1177/0300985813493932] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This study aimed to clarify the timing and infectivity of equine herpesvirus 9 (EHV-9) infection in BALB/c-nu/nu mice and their immunocompetent counterpart (BALB/c). Following intranasal inoculation with 10(5) PFU of EHV-9, specimens from 8 mice per group were collected at different times postinoculation (PI) and assessed using histopathology, immunohistochemistry for viral antigen, and quantitative real-time polymerase chain reaction for ORF30 gene expression. In BALB/c-nu/nu mice, EHV-9 antigen was abundant in olfactory epithelia of all inoculated animals, and in the olfactory bulb of 1 animal. In contrast, only 1 BALB/c mouse per time point had rhinitis, with mild to moderate immunopositivity starting from 12 to 48 h PI, followed by a gradual virus clearance at 72 h PI. Statistically, significant differences were noted in the immunohistochemistry reactions between the 2 mouse strains, indicating that BALB/c-nu/nu is more susceptible to infection. Relative expression levels of ORF30 gene in olfactory epithelia were significantly different between the 2 groups, with the exception of 12 h PI, when BALB/c-nu/nu animals showed dramatic increases in ORF30 gene expression level until 48 h PI, followed by a decline in expression level until the end of experiment. In contrast, the expression level in brains showed no differences between mouse strain except at 96 h PI. In both strains, the highest messenger RNA expression was detected at 48 h PI, followed by a decline in BALB/c mice, proving a rapid clearance of virus in BALB/c and a gradual slowing down of the increased expression levels in BALB/c-nu/nu.
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Affiliation(s)
- E El-Nahass
- Department of Veterinary Pathology and Microbiology, Faculty of Applied Biological Science, Gifu University, 1-1 Yanagido, Gifu 501-1193 Japan.
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Ramakrishna C, Openshaw H, Cantin EM. The case for immunomodulatory approaches in treating HSV encephalitis. Future Virol 2013; 8:259-272. [PMID: 23956785 DOI: 10.2217/fvl.12.138] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
HSV encephalitis (HSE) is the most prevalent sporadic viral encephalitis. Although safe and effective antiviral therapies and greatly improved noninvasive diagnostic procedures have significantly improved outcomes, mortality (~20%) and debilitating neurological sequelae in survivors remain unacceptably high. An encouraging new development is that the focus is now shifting away from the virus exclusively, to include consideration of the host immune response to infection in the pathology underlying development of HSE. In this article, the authors discuss results from recent studies in experimental mouse models, as well as clinical reports that demonstrate a role for exaggerated host inflammatory responses in the brain in the development of HSE that is motivating researchers and clinicians to consider new therapeutic approaches for treating HSE. The authors also discuss results from a few studies that have shown that immunomodulatory drugs can be highly protective against HSE, which supports a role for deleterious host inflammatory responses in HSE. The impressive outcomes of some immunomodulatory approaches in mouse models of HSE emphasize the urgent need for clinical trials to rigorously evaluate combination antiviral and immunomodulatory therapy in comparison with standard antiviral therapy for treatment of HSE, and support for such an initiative is gaining momentum.
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Affiliation(s)
- Chandran Ramakrishna
- Department of Virology, Beckman Research Institute of City of Hope; Duarte, CA 91010-3000, USA
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The amino terminus of herpes simplex virus 1 glycoprotein K is required for virion entry via the paired immunoglobulin-like type-2 receptor alpha. J Virol 2013; 87:3305-13. [PMID: 23302878 DOI: 10.1128/jvi.02982-12] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The herpes simplex virus 1 (HSV-1) glycoprotein K (gK)/UL20 protein complex is incorporated into virion envelopes and cellular membranes and functions during virus entry and cell-to-cell spread. To investigate the role of gK/UL20 in the context of a highly neurovirulent virus strain, the HSV-1(McKrae) genome was cloned into a bacterial artificial chromosome plasmid (McKbac) and utilized to construct the mutant virus McK(gKΔ31-68), carrying a 37-amino-acid deletion within the gK amino terminus. The McKbac virus entered efficiently into Chinese hamster ovary (CHO) cells constitutively expressing HSV-1 human receptors, nectin-1, herpesvirus entry mediator (HVEM), or paired immunoglobulin-like type-2 receptor alpha (PILRα). In contrast, the McK(gKΔ31-68) virus failed to enter into CHO-PILRα cells, while it entered CHO cells expressing HVEM and nectin-1 more efficiently than the McKbac virus. Both McKbac and McK(gKΔ31-68) viruses entered all CHO cells expressing HSV-1 receptors via a pH-independent pathway. The HSV-1(F) gBΔ28syn mutant virus, encoding a carboxyl-terminal truncated gB, causes extensive cell fusion. Previously, we showed that the gKΔ31-68 amino acid deletion abrogated gBΔ28syn virus-induced cell fusion, indicating that the amino terminus of gK is required for gB-mediated virus-induced cell fusion (V. N. Chouljenko, A. V. Iyer, S. Chowdhury, D. V. Chouljenko, and K. G. J. Kousoulas, Virology 83:12301-12313, 2009). Surprisingly, the gKΔ31-68/gBΔ28syn virus caused extensive fusion of CHO-nectin-1 cells but limited cell fusion of CHO-PILRα cells. Coimmunoprecipitation experiments revealed that both gK and PILRα bound gB in infected cells. Collectively, these results indicate that the amino terminus of gK is functionally and physically associated with the gB-PILRα protein complex and regulates membrane fusion of the viral envelope with cellular membranes during virus entry as well as virus-induced cell-to-cell fusion.
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Efficacy of HER2 retargeted herpes simplex virus as therapy for high-grade glioma in immunocompetent mice. Cancer Gene Ther 2012; 19:788-95. [PMID: 22996742 DOI: 10.1038/cgt.2012.62] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Replication-competent oncolytic herpes simplex viruses (HSVs) are considered a promising therapeutic approach for treatment of high-grade gliomas (HGGs), which are usually resistant to all the available treatments. We previously demonstrated that R-LM113, a recombinant HSV-1 fully retargeted to the human epidermal growth factor receptor 2 (HER2), is safe and prolongs survival of immunodeficient NOD/SCID mice in an intracranial model of HGG. However, because the treatment is designed to be employed on immunocompetent patients, it is necessary to test whether the host immune system impairs the viral efficacy or triggers a potentially fatal reaction. Here we confirmed the safety of R-LM113 in the immunocompetent mouse strain BALB/c, where it does not trigger encephalitis when intracranially inoculated. Then, we set up a syngeneic HGG model expressing HER2 in adult BALB/c mice and evaluated R-LM113 therapeutic efficacy. We found that R-LM113 leads to a significant improvement in animal survival when administered at the time of tumor inoculation, as well as when injected into an already established tumor. This study suggests that the host immune defenses do not curtail the oncolytic antitumor activity of replication-competent HSV R-LM113, which results effective in counteracting tumor growth.
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Farooq AV, Shukla D. Herpes simplex epithelial and stromal keratitis: an epidemiologic update. Surv Ophthalmol 2012; 57:448-62. [PMID: 22542912 PMCID: PMC3652623 DOI: 10.1016/j.survophthal.2012.01.005] [Citation(s) in RCA: 296] [Impact Index Per Article: 24.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2010] [Revised: 12/29/2011] [Accepted: 01/19/2012] [Indexed: 11/21/2022]
Abstract
Herpes simplex virus (HSV) is associated with a variety of ocular diseases, including epithelial and stromal keratitis. HSV can cause stromal opacification and is believed to be the leading cause of infectious blindness in the developed world. An improved understanding of the global burden of HSV keratitis, including the incidence of severe vision loss, could have a significant effect on prevention and treatment and place it in perspective among causes of corneal ulceration. We found that the global incidence of HSV keratitis is roughly 1.5 million, including 40,000 new cases of severe monocular visual impairment or blindness each year. We also discuss relevant epidemiologic issues regarding HSV epithelial and stromal disease.
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Affiliation(s)
- Asim V. Farooq
- Department of Ophthalmology and Visual Sciences, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
| | - Deepak Shukla
- Department of Ophthalmology and Visual Sciences, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
- Department of Microbiology and Immunology, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA
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30
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Yao HW, Ling P, Chen SH, Tung YY, Chen SH. Factors affecting herpes simplex virus reactivation from the explanted mouse brain. Virology 2012; 433:116-23. [PMID: 22884293 DOI: 10.1016/j.virol.2012.07.018] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2012] [Revised: 07/02/2012] [Accepted: 07/19/2012] [Indexed: 12/19/2022]
Abstract
The majority of encephalitis induced by herpes simplex virus type I (HSV-1) is due to viral reactivation from latency, but few studies have investigated the factors influencing viral reactivation in the brain due to the lack of a sensitive assay. We have established an ex vivo explant assay, which induced efficient viral reactivation in the dissociated mouse brain. Applying this assay, we investigated the infection of four HSV-1 strains with varying degrees of neurovirulence in three mouse strains with different levels of susceptibility to HSV-1 infection. We found that virulent HSV-1 strains and susceptible mouse strains exhibited prolonged viral growth during acute infection, increased latent viral genomes, and efficient explant reactivation in the brain stem. Collectively, both viral neurovirulence and host susceptibility positively correlate with HSV-1 reactivation from the explanted mouse brain.
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Affiliation(s)
- Hui-Wen Yao
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan 701, Republic of China
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31
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David AT, Saied A, Charles A, Subramanian R, Chouljenko VN, Kousoulas KG. A herpes simplex virus 1 (McKrae) mutant lacking the glycoprotein K gene is unable to infect via neuronal axons and egress from neuronal cell bodies. mBio 2012; 3:e00144-12. [PMID: 22829677 PMCID: PMC3413403 DOI: 10.1128/mbio.00144-12] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2012] [Accepted: 06/20/2012] [Indexed: 12/22/2022] Open
Abstract
UNLABELLED We have shown that the herpes simplex virus 1 (HSV-1) gK gene is essential for efficient replication and spread in the corneal epithelium and trigeminal ganglion neuroinvasion in mice (A. T. David, A. Baghian, T. P. Foster, V. N. Chouljenko, and K. G. Kousoulas, Curr. Eye Res. 33:455-467, 2008). To further investigate the role of gK in neuronal infection, we utilized a microfluidic chamber system separating neuronal cell bodies and axonal termini. HSV-1 (McKrae) engineered virus constitutively expressing enhanced green fluorescence protein (GFP) was efficiently transmitted in both a retrograde and an anterograde manner. These results were corroborated by expression of virion structural proteins in either chamber, as well as detection of viral genomes and infectious viruses. In contrast, efficient infection of either chamber with a gK-null virus did not result in infection of the apposed chamber. These results show that gK is an important determinant in virion axonal infection. Moreover, the inability of the gK-null virus to be transmitted in an anterograde manner suggests that virions acquire cytoplasmic envelopes prior to entering axons. IMPORTANCE Herpes simplex virus 1 (HSV-1) enters mucosal epithelial cells and neurons via fusion of the viral envelope with cellular membranes, mediated by viral glycoprotein B (gB) in cooperation with other viral glycoproteins. Retrograde transport of virions to neuronal cell bodies (somata) establishes lifelong latent infection in ganglionic neurons. We have previously reported that gK binds gB and is required for gB-mediated membrane fusion (Jambunatathan et al., J. Virol. 85:12910-12918, 2011; V. N. Chouljenko, A. V. Iyer, S. Chowdhury, J. Kim, and K. G. Kousoulas, J. Virol. 84:8596-8606, 2010). In the current study, we constructed a recombinant virus with the gK gene deleted in the highly virulent ocular HSV-1 strain McKrae. This recombinant virus failed to infect rat ganglionic neuronal axons alone or cocultured with Vero cells in microfluidic chambers. In addition, lack of gK expression prevented anterograde transmission of virions. These results suggest that gK is a critical determinant for neuronal infection and transmission.
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Affiliation(s)
- Andrew T David
- Division of Biotechnology and Molecular Medicine and Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana, USA
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32
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Jamali A, Soleimanjahi H, Moin M, Mahdavi M, Hashemi H, Sabahi F, Hassan ZM, Bamdad T. Withdrawal from morphine reduces cell-mediated immunity against herpes simplex virus generated by natural immunization. Neuroimmunomodulation 2012; 19:229-34. [PMID: 22441539 DOI: 10.1159/000334768] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Accepted: 10/28/2011] [Indexed: 11/19/2022] Open
Abstract
In a previous study, the authors have shown that herpes simplex virus type 1 (HSV-1) glycoprotein B DNA vaccine but not live vaccine (non-virulent KOS strain) failed to induce protective immunity against acute HSV-1 challenge in morphine-dependent mice. The present study reports the effect of morphine withdrawal on protective immunity induced by live HSV-1 immunization. BALB/c mice were vaccinated with KOS strain as a live vaccine. Three weeks later, they were exposed to morphine for 14 days. On day 14, withdrawal was induced by administration of normal saline instead of morphine. One day later, immune responses against HSV-1 were assessed by measuring cytotoxicity, lymphocyte proliferation and interferon-γ production. Protection against HSV-1 was assessed by measuring the mortality rate after acute HSV-1 challenge. The results showed that withdrawal from morphine reduces protective immunity against acute HSV-1 challenge. These findings raise the possibility that withdrawal from morphine may increase the susceptibility of drug addicts to infectious diseases.
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Affiliation(s)
- Abbas Jamali
- Influenza Unit, Department of Virology, Pasteur Institute of Iran, Tehran, Iran.
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33
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Herpes simplex virus 1 ICP0 phosphorylation site mutants are attenuated for viral replication and impaired for explant-induced reactivation. J Virol 2011; 85:12631-7. [PMID: 21937654 DOI: 10.1128/jvi.05661-11] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In cell culture experiments, phosphorylation appears to be a critical regulator of the herpes simplex virus 1 (HSV-1) immediate-early (IE) protein, ICP0, which is an E3 ubiquitin ligase that transactivates viral gene expression. Three major regions of phosphorylation in ICP0 (amino acids 224 to 232, 365 to 371, and 508 to 518) have been identified, and mutant viruses that block phosphorylation sites within each region (termed Phos 1, 2, and 3, respectively) have been constructed. Previous studies indicated that replication of Phos 1 is significantly reduced compared to that of wild-type virus in cell culture (C. Boutell, et al., J. Virol. 82:10647-10656, 2008). To determine the effects these phosphorylation site mutations have on the viral life cycle in vivo, mice were ocularly infected with wild-type HSV-1, the Phos mutants, or their marker rescue counterparts. Subsequently, viral replication, establishment of latency, and viral explant-induced reactivation of these viruses were examined. Relative to wild-type virus, Phos 1 eye titers were reduced as much as 7- and 18-fold on days 1 and 5 postinfection, respectively. Phos 2 eye titers showed a decrease of 6-fold on day 1 postinfection. Titers of Phos 1 and 2 trigeminal ganglia were reduced as much as 16- and 20-fold, respectively, on day 5 postinfection. Additionally, the reactivation efficiencies of Phos 1 and 2 were impaired relative to wild-type HSV-1, although both viruses established wild-type levels of latency in vivo. The acute replication, latency, and reactivation phenotypes of Phos 3 were similar to those of wild-type HSV-1. We conclude from these studies that phosphorylation is likely a key modulator of ICP0's biological activities in a mouse ocular model of HSV-1 infection.
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Haenchen SD, Utter JA, Bayless AM, Dobrowsky RT, Davido DJ. Role of a cdk5-associated protein, p35, in herpes simplex virus type 1 replication in vivo. J Neurovirol 2011; 16:405-9. [PMID: 20839922 DOI: 10.3109/13550284.2010.513030] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Previous studies have shown that herpes simplex virus type 1 (HSV-1) replication is inhibited by the cyclin-dependent kinase (cdk) inhibitor roscovitine. One roscovitine-sensitive cdk that functions in neurons is cdk5, which is activated in part by its binding partner, p35. Because HSV establishes latent infections in sensory neurons, we sought to determine the role p35 plays in HSV-1 replication in vivo. For these studies, wild-type (wt) and p35−/− mice were infected with HSV-1 using the mouse ocular model of HSV latency and reactivation. The current results indicate that p35 is an important determinant of viral replication in vivo.
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Affiliation(s)
- Steve D Haenchen
- Department of Molecular Biosciences, University of Kansas, Lawrence, Kansas 66045, USA
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35
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Ku CC, Che XB, Reichelt M, Rajamani J, Schaap-Nutt A, Huang KJ, Sommer MH, Chen YS, Chen YY, Arvin AM. Herpes simplex virus-1 induces expression of a novel MxA isoform that enhances viral replication. Immunol Cell Biol 2010; 89:173-82. [PMID: 20603636 DOI: 10.1038/icb.2010.83] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
MxA is an antiviral protein induced by interferon (IFN)-α/β that is known to inhibit the replication of many RNA viruses. In these experiments, the 76-kDa MxA protein expressed in IFN-α-treated cells was shown to have antiviral activity against herpes simplex virus-1 (HSV-1), a human DNA virus. However, MxA was expressed as a 56-kDa protein in HSV-1-infected cells in the absence of IFN-α. This previously unrecognized MxA isoform was produced from an alternatively spliced MxA transcript that had a deletion of Exons 14-16 and a frame shift altering the C-terminus. The variant MxA (varMxA) isoform was associated with HSV-1 regulatory proteins and virions in nuclear replication compartments. varMxA expression enhanced HSV-1 infection as shown by a reduction in infectious virus titers from cells in which MxA had been inhibited by RNA interference and by an increase in HSV-1 titers when the 56-kDa varMxA was expressed constitutively. Thus, the human MxA gene encodes two MxA isoforms, which are expressed differentially depending on whether the stimulus is IFN-α or HSV-1. These findings show that alternative splicing of cellular mRNA can result in expression of a novel isoform of a host defense gene that supports instead of restricting viral infection.
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Affiliation(s)
- Chia-Chi Ku
- The Graduate Institute of Immunology, College of Medicine, National Taiwan University, Taipei, Taiwan, ROC
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36
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Hukkanen V, Paavilainen H, Mattila RK. Host responses to herpes simplex virus and herpes simplex virus vectors. Future Virol 2010. [DOI: 10.2217/fvl.10.35] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herpes simplex virus (HSV) is a well-known, ubiquitous pathogen of humans. Engineered mutants of HSV can also be exploited as vectors in gene therapy or for virotherapy of tumors. HSV has multiple abilities to evade and modulate the innate and adaptive responses of the host. The increasing knowledge on the mutual interactions of the invading HSV with the host defenses will contribute to our deeper understanding of the relationship between HSV and the host, and thereby lead to future development of more effective and specific HSV vectors for treatment of human diseases. The future advances of HSV vaccines and vaccine vectors are based on the knowlegde of the complex interplay between HSV and the host defenses.
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Affiliation(s)
| | - Henrik Paavilainen
- Department of Virology, University of Turku, Kiinamyllynkatu 13, FIN-20520 Turku, Finland
| | - Riikka K Mattila
- Institute of Diagnostics, University of Oulu, Aapistie 5A, FIN-90014, Finland
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37
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Liu M, Schmidt EE, Halford WP. ICP0 dismantles microtubule networks in herpes simplex virus-infected cells. PLoS One 2010; 5:e10975. [PMID: 20544015 PMCID: PMC2882321 DOI: 10.1371/journal.pone.0010975] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2010] [Accepted: 05/13/2010] [Indexed: 01/18/2023] Open
Abstract
Infected-cell protein 0 (ICP0) is a RING finger E3 ligase that regulates herpes simplex virus (HSV) mRNA synthesis, and strongly influences the balance between latency and replication of HSV. For 25 years, the nuclear functions of ICP0 have been the subject of intense scrutiny. To obtain new clues about ICP0's mechanism of action, we constructed HSV-1 viruses that expressed GFP-tagged ICP0. To our surprise, both GFP-tagged and wild-type ICP0 were predominantly observed in the cytoplasm of HSV-infected cells. Although ICP0 is exclusively nuclear during the immediate-early phase of HSV infection, further analysis revealed that ICP0 translocated to the cytoplasm during the early phase where it triggered a previously unrecognized process; ICP0 dismantled the microtubule network of the host cell. A RING finger mutant of ICP0 efficiently bundled microtubules, but failed to disperse microtubule bundles. Synthesis of ICP0 proved to be necessary and sufficient to disrupt microtubule networks in HSV-infected and transfected cells. Plant and animal viruses encode many proteins that reorganize microtubules. However, this is the first report of a viral E3 ligase that regulates microtubule stability. Intriguingly, several cellular E3 ligases orchestrate microtubule disassembly and reassembly during mitosis. Our results suggest that ICP0 serves a dual role in the HSV life cycle, acting first as a nuclear regulator of viral mRNA synthesis and acting later, in the cytoplasm, to dismantle the host cell's microtubule network in preparation for virion synthesis and/or egress.
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Affiliation(s)
- Mingyu Liu
- Department of Microbiology and Immunology, Southern Illinois University School of Medicine, Springfield, Illinois, United States of America
| | - Edward E. Schmidt
- Department of Veterinary Molecular Biology, Montana State University, Bozeman, Montana, United States of America
| | - William P. Halford
- Department of Microbiology and Immunology, Southern Illinois University School of Medicine, Springfield, Illinois, United States of America
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Innate and adaptive immune responses to herpes simplex virus. Viruses 2009; 1:979-1002. [PMID: 21994578 PMCID: PMC3185534 DOI: 10.3390/v1030979] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Revised: 11/13/2009] [Accepted: 11/16/2009] [Indexed: 12/19/2022] Open
Abstract
Immune responses against HSV-1 and HSV-2 are complex and involve a delicate interplay between innate signaling pathways and adaptive immune responses. The innate response to HSV involves the induction of type I IFN, whose role in protection against disease is well characterized in vitro and in vivo. Cell types such as NK cells and pDCs contribute to innate anti-HSV responses in vivo. Finally, the adaptive response includes both humoral and cellular components that play important roles in antiviral control and latency. This review summarizes the innate and adaptive effectors that contribute to susceptibility, immune control and pathogenesis of HSV, and highlights the delicate interplay between these two important arms of immunity.
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Jamali A, Mahdavi M, Hassan ZM, Sabahi F, Farsani MJ, Bamdad T, Soleimanjahi H, Motazakker M, Shahabi S. A novel adjuvant, the general opioid antagonist naloxone, elicits a robust cellular immune response for a DNA vaccine. Int Immunol 2009; 21:217-25. [PMID: 19174474 DOI: 10.1093/intimm/dxn139] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
While many adjuvants have been discovered and used in research, only a few adjuvants have been permitted for use with human vaccination. We have previously shown that the administration of naloxone (NLX), a general opioid antagonist, during infection with a non-virulent strain of herpes simplex virus type 1 (HSV-1) could enhance protection against HSV-1 challenge. Here, the adjuvant activity of NLX has been evaluated using a DNA vaccine for HSV-1 as a model. BALB/c mice were divided into four groups; for experimental groups, mice received the glycoprotein D1 (gD1) DNA vaccine alone or in combination with the adjuvant NLX. A positive control group received the KOS strain of HSV-1, and a negative control group received PBS. All mice were immunized three times on days 0, 21 and 42. Three weeks after the last immunization, immune responses against HSV-1 were assessed. Our results indicate that the administration of NLX as an adjuvant increased the ability of the gD1 DNA vaccine to enhance cytolytic T lymphocyte activity, lymphocyte proliferation, delayed-type hypersensitivity and shifting the immune response toward a T helper (Th)1 pattern and improved protective immunity against HSV-1. NLX also increased the IgG2a/IgG1 ratio, though it did not affect the production of HSV-1 antiserum. In conclusion, administration of NLX as an adjuvant in combination with the gD1 DNA vaccine can enhance cell-mediated immunity and shift the immune responses to Th1.
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Affiliation(s)
- Abbas Jamali
- Department of Microbiology, Immunology and Genetics, Faculty of Medicine, Urmia University of Medical Sciences, Urmia, Iran
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Nagurskaya EV, Zaitseva LG, Kobets NV, Kireeva IV, Alimbarova LM, Samoilenko II, Barinskii IF. Functional activity of peritoneal macrophages from sensitive and resistant mouse strains during intravaginal infection with herpes simplex virus type 2 and mucosal vaccination. Bull Exp Biol Med 2008; 145:235-9. [PMID: 19023978 DOI: 10.1007/s10517-008-0059-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In the early period after intravaginal infection with herpes simplex virus type 2 (2 h), macrophages from sensitive DBA/2 mice were characterized by higher capacity to engulf the antigen, decreased function of the lysosomal apparatus, lower activity of cathepsin D, and reduced oxygen metabolism compared to cells from resistant BALB/c mice. Mucosal vaccination with herpes vaccine and hyaluronic acid promoted the increase in functional activity of macrophages and improved survival of sensitive mice (by 60%).
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Affiliation(s)
- E V Nagurskaya
- N. F. Gamaleya Institute of Epidemiology, Russian Academy of Medical Sciences, Moscow
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David AT, Baghian A, Foster TP, Chouljenko VN, Kousoulas KG. The herpes simplex virus type 1 (HSV-1) glycoprotein K(gK) is essential for viral corneal spread and neuroinvasiveness. Curr Eye Res 2008; 33:455-67. [PMID: 18568883 DOI: 10.1080/02713680802130362] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
PURPOSE To determine the role of herpes simplex virus-1 (HSV-1) glycoprotein K(gK) in corneal infection, neuroinvasion, and virus latency in trigeminal ganglia of mice. METHODS The recombinant virus HSV-1 (McKrae) Delta gK (MKDelta gK) carrying a deletion of the gK gene was constructed by insertional/deletion mutagenesis and replaced by a gene cassette constitutively expressing the enhanced green fluorescence protein. The gK deletion of the MKDelta gK virus was rescued to produce the wild-type-like virus MKgK. Balb/c mice were infected ocularly with either virus, and the infection pattern in the eye, clinical disease progression, and establishment of viral latency was monitored. RESULTS Mice infected with the MKDelta gK strain produced in a gK complementing cell line did not exhibit clinical signs when compared with mice infected with the MKgK virus. Direct visualization of infected eyes revealed that the MKDelta gK virus was unable to spread in mouse corneas, while the MKgK rescued virus spread efficiently. Nineteen of 20 scarified and 5/12 unscarified mice infected with the MKgK virus produced infectious virus after coculture with permissive cells, while 0/20 scarified and 0/12 unscarified mice infected with the MKDelta gK virus produced infectious virus. HSV DNA was detected in trigeminal ganglia by PCR in 19/20 scarified and 9/12 unscarified mice inoculated with MKgK, while HSV DNA was detected in the trigeminal ganglia of 3/20 scarified and 0/12 unscarified mice inoculated with MKDelta gK. CONCLUSIONS The results show that HSV-1 gK is essential for efficient replication and spread in the corneal epithelium and trigeminal ganglia neuroinvasion in MKDelta gK inoculated mice.
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Affiliation(s)
- Andrew T David
- Division of Biotechnology and Molecular Medicine, School of Veterinary Medicine, Louisiana State University, Baton Rouge, Louisiana 70803, USA
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Jamali A, Mahdavi M, Shahabi S, Hassan ZM, Sabahi F, Javan M, Farsani MJ, Parsania M, Bamdad T. Naloxone, an opioid receptor antagonist, enhances induction of protective immunity against HSV-1 infection in BALB/c mice. Microb Pathog 2007; 43:217-23. [PMID: 17669616 DOI: 10.1016/j.micpath.2007.06.001] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2007] [Accepted: 05/11/2007] [Indexed: 10/23/2022]
Abstract
The immunomodulatory effects of exogenous opioids on induction of acquired immunity during microbial infection are now well known; however, our knowledge about the relationship between endogenous opioid response and microbial infections is rudimentary. Here, we report the effect of administration of Naloxone (NLX), an opioid receptor antagonist, on induction of acquired immunity during primary herpes simplex virus type 1 (HSV-1) infection. BALB/c mice received NLX, twice daily, 2 h before infection with HSV-1 until 7 days after infection. Cell-mediated immunity was assessed by evaluating lymphocyte proliferation, interferon-gamma (IFN-gamma) production, delayed type hypersensitivity (DTH) and mortality rate after acute HSV-1 challenge. The findings showed that a higher level of cell-mediated immunity was induced in the NLX-treated animals compared to the control group after induction of HSV-1 infection. However, the data indicate similar neutralizing antibody production in NLX-treated animals and control animals. This observation and further studies in this field may lead to the use of NLX as an adjuvant for designing microbial vaccines and adjunctive therapy of viral infections.
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Affiliation(s)
- Abbas Jamali
- Department of Virology, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Balliet JW, Kushnir AS, Schaffer PA. Construction and characterization of a herpes simplex virus type I recombinant expressing green fluorescent protein: acute phase replication and reactivation in mice. Virology 2007; 361:372-83. [PMID: 17207829 PMCID: PMC1975764 DOI: 10.1016/j.virol.2006.11.022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2006] [Revised: 10/10/2006] [Accepted: 11/13/2006] [Indexed: 10/23/2022]
Abstract
A recombinant HSV-1 virus expressing EGFP from the HCMV major immediate early promoter (KOS-CMVGFP) was constructed to monitor viral replication and spread in vitro and in mice. KOS-CMVGFP replicated as efficiently as wild-type virus, strain KOS, in single cycle growth experiments in Vero cells indicating that the recombinant virus has no significant growth defects in vitro. Following ocular inoculation of mice, KOS-CMVGFP exhibited slight but statistically significant reductions in mouse tear film titers relative to wild-type virus. Progression of virus infection of the eyes, periocular tissue, and snout was readily followed by fluorescence microscopy. Insertion of the EGFP expression cassette into the KOS genome had no effect on the efficiency of establishment of latency as determined by quantitative competitive PCR of viral genomes in latently infected TG. KOS-CMVGFP reactivated with wild-type kinetics and efficiency by explant cocultivation, but exhibited a significant delay in the kinetics and a modest reduction in the efficiency of reactivation compared to KOS in the more sensitive TG cell culture model. Notably, EGFP expression preceded the detection of infectious virus by greater than 24 h in both ex vivo models and thus is a useful marker of the early stages in the induction of reactivation.
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Affiliation(s)
- John W. Balliet
- Departments of Medicine and Microbiology and Molecular Genetics, Harvard Medical School at the Beth Israel Deaconess Medical Center, Boston, MA, 02215
| | - Anna S. Kushnir
- Departments of Medicine and Microbiology and Molecular Genetics, Harvard Medical School at the Beth Israel Deaconess Medical Center, Boston, MA, 02215
- Harvard University Ph.D. Program in Virology, Harvard Medical School at the Beth Israel Deaconess Medical Center, Boston, MA, 02215
| | - Priscilla A. Schaffer
- Departments of Medicine and Microbiology and Molecular Genetics, Harvard Medical School at the Beth Israel Deaconess Medical Center, Boston, MA, 02215
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Halford WP, Weisend C, Grace J, Soboleski M, Carr DJJ, Balliet JW, Imai Y, Margolis TP, Gebhardt BM. ICP0 antagonizes Stat 1-dependent repression of herpes simplex virus: implications for the regulation of viral latency. Virol J 2006; 3:44. [PMID: 16764725 PMCID: PMC1557838 DOI: 10.1186/1743-422x-3-44] [Citation(s) in RCA: 73] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2006] [Accepted: 06/09/2006] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND The herpes simplex virus type 1 (HSV-1) ICP0 protein is an E3 ubiquitin ligase, which is encoded within the HSV-1 latency-associated locus. When ICP0 is not synthesized, the HSV-1 genome is acutely susceptible to cellular repression. Reciprocally, when ICP0 is synthesized, viral replication is efficiently initiated from virions or latent HSV-1 genomes. The current study was initiated to determine if ICP0's putative role as a viral interferon (IFN) antagonist may be relevant to the process by which ICP0 influences the balance between productive replication versus cellular repression of HSV-1. RESULTS Wild-type (ICP0+) strains of HSV-1 produced lethal infections in scid or rag2-/- mice. The replication of ICP0- null viruses was rapidly repressed by the innate host response of scid or rag2-/- mice, and the infected animals remained healthy for months. In contrast, rag2-/- mice that lacked the IFN-alpha/beta receptor (rag2-/- ifnar-/-) or Stat 1 (rag2-/- stat1-/-) failed to repress ICP0- viral replication, resulting in uncontrolled viral spread and death. Thus, the replication of ICP0- viruses is potently repressed in vivo by an innate immune response that is dependent on the IFN-alpha/beta receptor and the downstream transcription factor, Stat 1. CONCLUSION ICP0's function as a viral IFN antagonist is necessary in vivo to prevent an innate, Stat 1-dependent host response from rapidly repressing productive HSV-1 replication. This antagonistic relationship between ICP0 and the host IFN response may be relevant in regulating whether the HSV-1 genome is expressed, or silenced, in virus-infected cells in vivo. These results may also be clinically relevant. IFN-sensitive ICP0- viruses are avirulent, establish long-term latent infections, and induce an adaptive immune response that is highly protective against lethal challenge with HSV-1. Therefore, ICP0- viruses appear to possess the desired safety and efficacy profile of a live vaccine against herpetic disease.
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Affiliation(s)
- William P Halford
- Dept of Veterinary Molecular Biology, Montana State University, Bozeman, MT, USA
| | - Carla Weisend
- Dept of Veterinary Molecular Biology, Montana State University, Bozeman, MT, USA
| | - Jennifer Grace
- Dept of Veterinary Molecular Biology, Montana State University, Bozeman, MT, USA
| | - Mark Soboleski
- Dept of Microbiology and Immunology, Tulane University Medical School, New Orleans, LA, USA
| | - Daniel JJ Carr
- Dean McGee Eye Institute, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - John W Balliet
- Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - Yumi Imai
- Francis I. Proctor Foundation, University of California, San Francisco, CA, USA
| | - Todd P Margolis
- Francis I. Proctor Foundation, University of California, San Francisco, CA, USA
| | - Bryan M Gebhardt
- Dept of Ophthalmology, Louisiana State University Health Sciences Center, New Orleans, LA, USA
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Orr MT, Edelmann KH, Vieira J, Corey L, Raulet DH, Wilson CB. Inhibition of MHC class I is a virulence factor in herpes simplex virus infection of mice. PLoS Pathog 2005; 1:e7. [PMID: 16201019 PMCID: PMC1238742 DOI: 10.1371/journal.ppat.0010007] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2005] [Accepted: 07/20/2005] [Indexed: 01/01/2023] Open
Abstract
Herpes simplex virus (HSV) has a number of genes devoted to immune evasion. One such gene, ICP47, binds to the transporter associated with antigen presentation (TAP) 1/2 thereby preventing transport of viral peptides into the endoplasmic reticulum, loading of peptides onto nascent major histocompatibility complex (MHC) class I molecules, and presentation of peptides to CD8 T cells. However, ICP47 binds poorly to murine TAP1/2 and so inhibits antigen presentation by MHC class I in mice much less efficiently than in humans, limiting the utility of murine models to address the importance of MHC class I inhibition in HSV immunopathogenesis. To address this limitation, we generated recombinant HSVs that efficiently inhibit antigen presentation by murine MHC class I. These recombinant viruses prevented cytotoxic T lymphocyte killing of infected cells in vitro, replicated to higher titers in the central nervous system, and induced paralysis more frequently than control HSV. This increase in virulence was due to inhibition of antigen presentation to CD8 T cells, since these differences were not evident in MHC class I-deficient mice or in mice in which CD8 T cells were depleted. Inhibition of MHC class I by the recombinant viruses did not impair the induction of the HSV-specific CD8 T-cell response, indicating that cross-presentation is the principal mechanism by which HSV-specific CD8 T cells are induced. This inhibition in turn facilitates greater viral entry, replication, and/or survival in the central nervous system, leading to an increased incidence of paralysis. While animal models are often instructive in understanding human diseases, many factors that influence disease differ between mouse and man. Although mice can be experimentally infected with HSV-1, this virus has evolved as a human pathogen. One facet of this evolution is HSV's mechanisms to evade the immune response, allowing the virus to persist for the lifetime of the human host. This evasion includes preventing CD8 T cells from recognizing and killing infected cells by inhibiting the expression of the molecule that presents viral peptides to CD8 T cells: major histocompatibility complex (MHC) class I. HSV is unable to inhibit mouse MHC class I, thus rendering this immune-evasion strategy inoperative in the mouse. To better understand the biology of HSV infection and the immune response to this virus in humans, the authors corrected this deficiency by inserting a gene which inhibits murine MHC class I. This recombinant virus demonstrates that MHC class I inhibition is an important determinant of disease progression. The authors found that the recombinant HSV still effectively elicits a CD8 T-cell response, but this response is ineffective in controlling the infection. This finding reveals the important distinction between the size of the immune response and the effectiveness of the response, which may be important to HSV vaccine studies.
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Affiliation(s)
- Mark T Orr
- Department of Immunology, University of Washington, Seattle, Washington, United States of America
| | - Kurt H Edelmann
- Department of Immunology, University of Washington, Seattle, Washington, United States of America
| | - Jeffrey Vieira
- Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America
- Program in Infectious Diseases, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Lawrence Corey
- Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America
- Program in Infectious Diseases, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Department of Medicine, University of Washington, Seattle, Washington, United States of America
| | - David H Raulet
- Department of Molecular and Cell Biology and Cancer Research Laboratory, University of California, Berkeley, California, United States of America
| | - Christopher B Wilson
- Department of Immunology, University of Washington, Seattle, Washington, United States of America
- Department of Pediatrics, University of Washington, Seattle, Washington, United States of America
- *To whom correspondence should be addressed. E-mail:
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Abstract
Herpesvirus infection leads to the rapid induction of an innate immune response. A central aspect of this host response is the production and secretion of type I interferon. The current model of virus-mediated interferon production includes three stages: sensitization, induction, and amplification. A key mediator of all three stages is the cellular transcription factor interferon regulatory factor 3 (IRF3). Although the precise details of IRF3 activation and interferon production in response to herpesvirus infection are still being elucidated, viral proteins that block components of the interferon pathway, particularly IRF3, have been identified and characterized. In vivo studies have shown that in addition to type I interferon, interleukin-15 (IL-15) and natural killer (NK) cells also play an important role in mediating resistance to herpesvirus infection. Recent investigations have demonstrated a strong association between IRF3, interferon, IL-15, and NK cells. This review will focus on herpesvirus-mediated induction of innate immunity, the central role of the type I interferon response and mechanisms used by herpesviruses to block host antiviral immunity.
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Affiliation(s)
- Karen L Mossman
- Department of Pathology and Molecular Medicine, Centre for Gene Therapeutics, McMaster University, Hamilton, Ontario, Canada.
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Ellermann-Eriksen S. Macrophages and cytokines in the early defence against herpes simplex virus. Virol J 2005; 2:59. [PMID: 16076403 PMCID: PMC1215526 DOI: 10.1186/1743-422x-2-59] [Citation(s) in RCA: 91] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2005] [Accepted: 08/03/2005] [Indexed: 11/12/2022] Open
Abstract
Herpes simplex virus (HSV) type 1 and 2 are old viruses, with a history of evolution shared with humans. Thus, it is generally well-adapted viruses, infecting many of us without doing much harm, and with the capacity to hide in our neurons for life. In rare situations, however, the primary infection becomes generalized or involves the brain. Normally, the primary HSV infection is asymptomatic, and a crucial element in the early restriction of virus replication and thus avoidance of symptoms from the infection is the concerted action of different arms of the innate immune response. An early and light struggle inhibiting some HSV replication will spare the host from the real war against huge amounts of virus later in infection. As far as such a war will jeopardize the life of the host, it will be in both interests, including the virus, to settle the conflict amicably. Some important weapons of the unspecific defence and the early strikes and beginning battle during the first days of a HSV infection are discussed in this review. Generally, macrophages are orchestrating a multitude of anti-herpetic actions during the first hours of the attack. In a first wave of responses, cytokines, primarily type I interferons (IFN) and tumour necrosis factor are produced and exert a direct antiviral effect and activate the macrophages themselves. In the next wave, interleukin (IL)-12 together with the above and other cytokines induce production of IFN-gamma in mainly NK cells. Many positive feed-back mechanisms and synergistic interactions intensify these systems and give rise to heavy antiviral weapons such as reactive oxygen species and nitric oxide. This results in the generation of an alliance against the viral enemy. However, these heavy weapons have to be controlled to avoid too much harm to the host. By IL-4 and others, these reactions are hampered, but they are still allowed in foci of HSV replication, thus focusing the activity to only relevant sites. So, no hero does it alone. Rather, an alliance of cytokines, macrophages and other cells seems to play a central role. Implications of this for future treatment modalities are shortly considered.
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Affiliation(s)
- Svend Ellermann-Eriksen
- Department of Clinical Microbiology, Aarhus University Hospital, Skejby Sygehus, Brendstrupgaardsvej 100, DK-8200 Aarhus N., Denmark.
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Halford WP, Maender JL, Gebhardt BM. Re-evaluating the role of natural killer cells in innate resistance to herpes simplex virus type 1. Virol J 2005; 2:56. [PMID: 16022737 PMCID: PMC1188082 DOI: 10.1186/1743-422x-2-56] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2005] [Accepted: 07/17/2005] [Indexed: 01/27/2023] Open
Abstract
Background Interferon-γ acts to multiply the potency with which innate interferons (α/β) suppress herpes simplex virus type 1 (HSV-1) replication. Recent evidence suggests that this interaction is functionally relevant in host defense against HSV-1. However, it is not clear which WBCs of the innate immune system, if any, limit HSV-1 spread in an IFN-γ dependent manner. The current study was initiated to determine if natural killer (NK) cells provide innate resistance to HSV-1 infection, and if so to determine if this resistance is IFN-γ-dependent. Results Lymphocyte-deficient scid or rag2-/- mice were used to test four predictions of the central hypothesis, and thus determine if innate resistance to HSV-1 is dependent on 1. NK cell cytotoxicity, 2. NK cells, 3. WBCs, or 4. the IFN-activated transcription factor, Stat 1. Loss of NK cell cytotoxic function or depletion of NK cells had no effect on the progression of HSV-1 infection in scid mice. In contrast, viral spread and pathogenesis developed much more rapidly in scid mice depleted of WBCs. Likewise, loss of Stat 1 function profoundly impaired the innate resistance of rag2-/- mice to HSV-1. Conclusion Lymphocyte-deficient mice possess a very tangible innate resistance to HSV-1 infection, but this resistance is not dependent upon NK cells.
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Affiliation(s)
- William P Halford
- Dept of Veterinary Molecular Biology, Montana State University, Bozeman, MT, USA
| | | | - Bryan M Gebhardt
- Dept of Ophthalmology, Louisiana State University Health Sciences Center, New Orleans, LA USA
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49
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Soboleski MR, Oaks J, Halford WP. Green fluorescent protein is a quantitative reporter of gene expression in individual eukaryotic cells. FASEB J 2005; 19:440-2. [PMID: 15640280 PMCID: PMC1242169 DOI: 10.1096/fj.04-3180fje] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Green fluorescent protein (GFP) has gained widespread use as a tool to visualize spatial and temporal patterns of gene expression in vivo. However, it is not generally accepted that GFP can also be used as a quantitative reporter of gene expression. We report that GFP is a reliable reporter of gene expression in individual eukaryotic cells when fluorescence is measured by flow cytometry. Two pieces of evidence support this conclusion: GFP fluorescence increases in direct proportion to the GFP gene copy number delivered to cells by a replication-defective adenovirus vector, Ad.CMV-GFP, and the intensity of GFP fluorescence is directly proportional to GFP mRNA abundance in cells. This conclusion is further supported by the fact that the induction of GFP gene expression from two inducible promoters (i.e., the TRE and ICP0 promoters) is readily detected by flow cytometric measurement of GFP fluorescent intensity. Collectively, the results presented herein indicate that GFP fluorescence is a reliable and quantitative reporter of underlying differences in gene expression.
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Affiliation(s)
- Mark R. Soboleski
- Department of Microbiology and Immunology, Tulane University Medical School, New Orleans, LA 70112
| | - Jason Oaks
- Department of Microbiology and Immunology, Tulane University Medical School, New Orleans, LA 70112
| | - William P. Halford
- Department of Microbiology and Immunology, Tulane University Medical School, New Orleans, LA 70112
- *Corresponding author: William P. Halford, Department of Veterinary Molecular Biology, 960 Technology Boulevard, Bozeman, MT 59718, Phone: (406) 994-6374, FAX: (406) 994-4303, Electronic mail:
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