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Fernández JJ, Marin A, Rosales R, Penrice-Randal R, Mlcochova P, Alvarez Y, Villalon-Letelier F, Yildiz S, Pérez E, Rathnasinghe R, Cupic A, Kehrer T, Uccellini MB, Alonso S, Martínez F, McGovern BL, Clark JJ, Sharma P, Bayón Y, Alonso A, Albrecht RA, White KM, Schotsaert M, Miorin L, Stewart JP, Hiscox JA, Gupta RK, Irigoyen N, García-Sastre A, Crespo MS, Fernández N. The IRE1α-XBP1 arm of the unfolded protein response is a host factor activated in SARS-CoV-2 infection. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167193. [PMID: 38648902 DOI: 10.1016/j.bbadis.2024.167193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 03/30/2024] [Accepted: 04/16/2024] [Indexed: 04/25/2024]
Abstract
SARS-CoV-2 infection can cause severe pneumonia, wherein exacerbated inflammation plays a major role. This is reminiscent of the process commonly termed cytokine storm, a condition dependent on a disproportionated production of cytokines. This state involves the activation of the innate immune response by viral patterns and coincides with the biosynthesis of the biomass required for viral replication, which may overwhelm the capacity of the endoplasmic reticulum and drive the unfolded protein response (UPR). The UPR is a signal transduction pathway composed of three branches that is initiated by a set of sensors: inositol-requiring protein 1 (IRE1), protein kinase RNA-like ER kinase (PERK), and activating transcription factor 6 (ATF6). These sensors control adaptive processes, including the transcriptional regulation of proinflammatory cytokines. Based on this background, the role of the UPR in SARS-CoV-2 replication and the ensuing inflammatory response was investigated using in vivo and in vitro models of infection. Mice and Syrian hamsters infected with SARS-CoV-2 showed a sole activation of the Ire1α-Xbp1 arm of the UPR associated with a robust production of proinflammatory cytokines. Human lung epithelial cells showed the dependence of viral replication on the expression of UPR-target proteins branching on the IRE1α-XBP1 arm and to a lower extent on the PERK route. Likewise, activation of the IRE1α-XBP1 branch by Spike (S) proteins from different variants of concern was a uniform finding. These results show that the IRE1α-XBP1 system enhances viral replication and cytokine expression and may represent a potential therapeutic target in SARS-CoV-2 severe pneumonia.
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Affiliation(s)
- Jose Javier Fernández
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain; Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Arturo Marin
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Romel Rosales
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Rebekah Penrice-Randal
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Petra Mlcochova
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Department of Medicine, University of Cambridge, Cambridge, UK
| | - Yolanda Alvarez
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain; Departamento de Bioquímica, Biología Molecular y Fisiología, Universidad de Valladolid, 47003 Valladolid, Spain
| | | | - Soner Yildiz
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Enrique Pérez
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain
| | - Raveen Rathnasinghe
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Anastasija Cupic
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Thomas Kehrer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Melissa B Uccellini
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Sara Alonso
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain
| | - Fernando Martínez
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain
| | - Briana Lynn McGovern
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jordan J Clark
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Parul Sharma
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Yolanda Bayón
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain; Departamento de Bioquímica, Biología Molecular y Fisiología, Universidad de Valladolid, 47003 Valladolid, Spain
| | - Andrés Alonso
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain
| | - Randy A Albrecht
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Kris M White
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Michael Schotsaert
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Lisa Miorin
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - James P Stewart
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK; Department of Infectious Disease, University of Georgia, GA, USA
| | - Julian A Hiscox
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK; Infectious Diseases Horizontal Technology Centre (ID HTC), A*STAR, Singapore, Singapore; Department of Preventive Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
| | - Ravindra K Gupta
- Cambridge Institute of Therapeutic Immunology & Infectious Disease (CITIID), Department of Medicine, University of Cambridge, Cambridge, UK
| | - Nerea Irigoyen
- Division of Virology, Department of Pathology, University of Cambridge, Tennis Court Road, Cambridge, UK
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA; Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY, USA; The Tisch Cancer Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA; Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - Mariano Sánchez Crespo
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain.
| | - Nieves Fernández
- Unidad de Excelencia Instituto de Biomedicina y Genética Molecular, CSIC-Universidad de Valladolid, 47003 Valladolid, Spain; Departamento de Bioquímica, Biología Molecular y Fisiología, Universidad de Valladolid, 47003 Valladolid, Spain
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Michael BD, Dunai C, Needham EJ, Tharmaratnam K, Williams R, Huang Y, Boardman SA, Clark JJ, Sharma P, Subramaniam K, Wood GK, Collie C, Digby R, Ren A, Norton E, Leibowitz M, Ebrahimi S, Fower A, Fox H, Tato E, Ellul MA, Sunderland G, Held M, Hetherington C, Egbe FN, Palmos A, Stirrups K, Grundmann A, Chiollaz AC, Sanchez JC, Stewart JP, Griffiths M, Solomon T, Breen G, Coles AJ, Kingston N, Bradley JR, Chinnery PF, Cavanagh J, Irani SR, Vincent A, Baillie JK, Openshaw PJ, Semple MG, Taams LS, Menon DK. Author Correction: Para-infectious brain injury in COVID-19 persists at follow-up despite attenuated cytokine and autoantibody responses. Nat Commun 2024; 15:2918. [PMID: 38575615 PMCID: PMC10995197 DOI: 10.1038/s41467-024-47320-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2024] Open
Affiliation(s)
- Benedict D Michael
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK.
- NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool, Liverpool, L69 7BE, UK.
- The Walton Centre NHS Foundation Trust, Liverpool, L9 7BB, UK.
| | - Cordelia Dunai
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
- NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool, Liverpool, L69 7BE, UK
| | - Edward J Needham
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Kukatharmini Tharmaratnam
- Health Data Science, Institute of Population Health, University of Liverpool, Liverpool, L69 3GF, UK
| | - Robyn Williams
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
- Departments of Neurology and Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yun Huang
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Sarah A Boardman
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Jordan J Clark
- University of Liverpool, Liverpool, L69 7BE, UK
- Department of Microbiology, Icahn School of Medicine, Mount Sinai, NY, 10029, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VARPP), Icahn School of Medicine, Mount Sinai, NY, 10029, USA
| | - Parul Sharma
- Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, UK
| | - Krishanthi Subramaniam
- Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, UK
| | - Greta K Wood
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Ceryce Collie
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Richard Digby
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Alexander Ren
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Emma Norton
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Maya Leibowitz
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Soraya Ebrahimi
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Andrew Fower
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
| | - Hannah Fox
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
| | - Esteban Tato
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 8AF, UK
- NIHR Maudsley Biomedical Research Centre, King's College London, London, SE5 8AF, UK
| | - Mark A Ellul
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
- The Walton Centre NHS Foundation Trust, Liverpool, L9 7BB, UK
| | - Geraint Sunderland
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Marie Held
- Centre for Cell Imaging, Liverpool Shared Research Facilities, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Claire Hetherington
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Franklyn N Egbe
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Alish Palmos
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 8AF, UK
- NIHR Maudsley Biomedical Research Centre, King's College London, London, SE5 8AF, UK
| | - Kathy Stirrups
- NIHR BioResource, Cambridge University Hospitals NHS Foundation, Cambridge, CB2 0QQ, UK
- Department of Haematology, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Alexander Grundmann
- Clinical Neurosciences, Clinical and Experimental Science, Faculty of Medicine, University of Southampton, Southampton, SO17 1BF, UK
- Department of Neurology, Wessex Neurological Centre, University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK
| | - Anne-Cecile Chiollaz
- Département de médecine interne des spécialités (DEMED), University of Geneva, Geneva, CH-1211, Switzerland
| | - Jean-Charles Sanchez
- Département de médecine interne des spécialités (DEMED), University of Geneva, Geneva, CH-1211, Switzerland
| | - James P Stewart
- Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, UK
| | - Michael Griffiths
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Tom Solomon
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
- NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool, Liverpool, L69 7BE, UK
- The Walton Centre NHS Foundation Trust, Liverpool, L9 7BB, UK
- The Pandemic Institute, Liverpool, L7 3FA, UK
| | - Gerome Breen
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 8AF, UK
- NIHR Maudsley Biomedical Research Centre, King's College London, London, SE5 8AF, UK
| | - Alasdair J Coles
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Nathalie Kingston
- NIHR BioResource, Cambridge University Hospitals NHS Foundation, Cambridge, CB2 0QQ, UK
- University of Cambridge, Cambridge, CB2 0QQ, UK
| | - John R Bradley
- NIHR BioResource, Cambridge University Hospitals NHS Foundation, Cambridge, CB2 0QQ, UK
- Department of Medicine, School of Clinical Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Patrick F Chinnery
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK
- NIHR BioResource, Cambridge University Hospitals NHS Foundation, Cambridge, CB2 0QQ, UK
| | - Jonathan Cavanagh
- Centre for Immunology, School of Infection & Immunity, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Sarosh R Irani
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
- Departments of Neurology and Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Angela Vincent
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
| | - J Kenneth Baillie
- Roslin Institute, University of Edinburgh, Edinburgh, EH25 9RG, UK
- Intensive Care Unit, Royal Infirmary of Edinburgh, Edinburgh, EH10 5HF, UK
| | - Peter J Openshaw
- National Heart and Lung Institute, Imperial College London, London, SW7 2BX, UK
- Imperial College Healthcare NHS Trust, London, W2 1NY, UK
| | - Malcolm G Semple
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
- NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool, Liverpool, L69 7BE, UK
- Respiratory Unit, Alder Hey Children's Hospital NHS Foundation Trust, Liverpool, L14 5AB, UK
| | - Leonie S Taams
- Centre for Inflammation Biology and Cancer Immunology, King's College London, London, SE1 9RT, UK
| | - David K Menon
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
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Tandavanitj R, Setthapramote C, De Lorenzo G, Sanchez-Velazquez R, Clark JJ, Rocchi M, McInnes C, Kohl A, Patel AH. Virus-like particles of louping ill virus elicit potent neutralizing antibodies targeting multimers of viral envelope protein. Vaccine 2024; 42:2429-2437. [PMID: 38458875 DOI: 10.1016/j.vaccine.2024.03.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 03/01/2024] [Accepted: 03/04/2024] [Indexed: 03/10/2024]
Abstract
Louping ill virus (LIV) is a tick-borne flavivirus that predominantly causes disease in livestock, especially sheep in the British Isles. A preventive vaccine, previously approved for veterinary use but now discontinued, was based on an inactivated whole virion that likely provided protection by induction of neutralizing antibodies recognizing the viral envelope (E) protein. A major disadvantage of the inactivated vaccine was the need for high containment facilities for the propagation of infectious virus, as mandated by the hazard group 3 status of the virus. This study aimed to develop high-efficacy non-infectious protein-based vaccine candidates. Specifically, soluble envelope protein (sE), and virus-like particles (VLPs), comprised of the precursor of membrane and envelope proteins, were generated, characterized, and studied for their immunogenicity in mice. Results showed that the VLPs induced more potent virus neutralizing response compared to sE, even though the total anti-envelope IgG content induced by the two antigens was similar. Depletion of anti-monomeric E protein antibodies from mouse immune sera suggested that the neutralizing antibodies elicited by the VLPs targeted epitopes spanning the highly organized structure of multimer of the E protein, whereas the antibody response induced by sE focused on E monomers. Thus, our results indicate that VLPs represent a promising LIV vaccine candidate.
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Affiliation(s)
- Rapeepat Tandavanitj
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, Scotland, United Kingdom; Biologicals Research Group, Research and Development Institute, The Government Pharmaceutical Organization, Bangkok 10400, Thailand
| | - Chayanee Setthapramote
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, Scotland, United Kingdom; Department of Clinical Pathology, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Bangkok 10300, Thailand
| | - Giuditta De Lorenzo
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, Scotland, United Kingdom
| | | | - Jordan J Clark
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, Scotland, United Kingdom
| | - Mara Rocchi
- Moredun Research Institute, Midlothian EH26 0PZ, Scotland, United Kingdom
| | - Colin McInnes
- Moredun Research Institute, Midlothian EH26 0PZ, Scotland, United Kingdom
| | - Alain Kohl
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, Scotland, United Kingdom; Departments of Vector Biology and Tropical Disease Biology, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, United Kingdom
| | - Arvind H Patel
- MRC-University of Glasgow Centre for Virus Research, Glasgow G61 1QH, Scotland, United Kingdom.
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Gonzalo-Nadal V, Kohl A, Rocchi M, Brennan B, Hughes J, Nichols J, Da Silva Filipe A, Dunlop JI, Fares M, Clark JJ, Tandavanitj R, Patel AH, Cloquell-Miro A, Bongers J, Deacon J, Kaczmarska A, Stalin C, Liatis T, Irving J, Gutierrez-Quintana R. Suspected tick-borne flavivirus meningoencephalomyelitis in dogs from the UK: six cases (2021). J Small Anim Pract 2024; 65:132-143. [PMID: 37956993 DOI: 10.1111/jsap.13682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 06/30/2023] [Accepted: 10/01/2023] [Indexed: 11/21/2023]
Abstract
OBJECTIVES Tick-borne encephalitis virus and louping ill virus are neurotropic flaviviruses transmitted by ticks. Epidemiologically, tick-borne encephalitis is endemic in Europe whereas louping ill's predominant geographical distribution is the UK. Rarely, these flaviviruses affect dogs causing neurological signs. This case series aimed to describe the clinical, clinicopathological, and imaging findings, as well as the outcomes in six dogs with meningoencephalitis and/or meningomyelitis caused by a flavivirus in the UK in 2021. MATERIALS AND METHODS Observational retrospective case-series study. Clinical data were retrieved from medical records of dogs with positive serological or immunohistochemical results from three different institutions from spring to winter 2021. RESULTS Six dogs were included in the study. All dogs presented an initial phase of pyrexia and/or lethargy followed by progressive signs of spinal cord and/or intracranial disease. Magnetic resonance imaging showed bilateral and symmetrical lesions affecting the grey matter of the thalamus, pons, medulla oblongata, and thoracic or lumbar intumescences with none or mild parenchymal and meningeal contrast enhancement. Serology for tick-borne encephalitis virus was positive in five dogs with the presence of seroconversion in two dogs. The viral distinction between flaviviruses was not achieved. One dog with negative serology presented positive immunohistochemistry at post-mortem examination. Three dogs survived but presented neurological sequelae. Three dogs were euthanased due to the rapid progression of the clinical signs or static neurological signs. CLINICAL SIGNIFICANCE These cases raise awareness of the presence of tick-borne encephalitis as an emergent disease or the increased prevalence of louping ill virus affecting dogs in the UK.
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Affiliation(s)
- V Gonzalo-Nadal
- Division of Small Animal Clinical Sciences, School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - A Kohl
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - M Rocchi
- Moredun Research Institute, Midlothian, UK
| | - B Brennan
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - J Hughes
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - J Nichols
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | | | - J I Dunlop
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - M Fares
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - J J Clark
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - R Tandavanitj
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - A H Patel
- MRC-University of Glasgow Centre for Virus Research, Glasgow, UK
| | - A Cloquell-Miro
- Division of Small Animal Clinical Sciences, School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - J Bongers
- Division of Small Animal Clinical Sciences, School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Moorview Vets, Cramlington, UK
| | | | - A Kaczmarska
- Division of Small Animal Clinical Sciences, School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - C Stalin
- Division of Small Animal Clinical Sciences, School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
- Moorview Vets, Cramlington, UK
| | - T Liatis
- Queen Mother Hospital for Animals, Royal Veterinary College, University of London, London, UK
| | - J Irving
- Pathobiology and Population Sciences, Royal Veterinary College, Hatfield, Hertfordshire, UK
- Harper & Keele Veterinary School, Newport, Shropshire, UK
| | - R Gutierrez-Quintana
- Division of Small Animal Clinical Sciences, School of Veterinary Medicine, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
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Michael BD, Dunai C, Needham EJ, Tharmaratnam K, Williams R, Huang Y, Boardman SA, Clark JJ, Sharma P, Subramaniam K, Wood GK, Collie C, Digby R, Ren A, Norton E, Leibowitz M, Ebrahimi S, Fower A, Fox H, Tato E, Ellul MA, Sunderland G, Held M, Hetherington C, Egbe FN, Palmos A, Stirrups K, Grundmann A, Chiollaz AC, Sanchez JC, Stewart JP, Griffiths M, Solomon T, Breen G, Coles AJ, Kingston N, Bradley JR, Chinnery PF, Cavanagh J, Irani SR, Vincent A, Baillie JK, Openshaw PJ, Semple MG, Taams LS, Menon DK. Para-infectious brain injury in COVID-19 persists at follow-up despite attenuated cytokine and autoantibody responses. Nat Commun 2023; 14:8487. [PMID: 38135686 PMCID: PMC10746705 DOI: 10.1038/s41467-023-42320-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 10/06/2023] [Indexed: 12/24/2023] Open
Abstract
To understand neurological complications of COVID-19 better both acutely and for recovery, we measured markers of brain injury, inflammatory mediators, and autoantibodies in 203 hospitalised participants; 111 with acute sera (1-11 days post-admission) and 92 convalescent sera (56 with COVID-19-associated neurological diagnoses). Here we show that compared to 60 uninfected controls, tTau, GFAP, NfL, and UCH-L1 are increased with COVID-19 infection at acute timepoints and NfL and GFAP are significantly higher in participants with neurological complications. Inflammatory mediators (IL-6, IL-12p40, HGF, M-CSF, CCL2, and IL-1RA) are associated with both altered consciousness and markers of brain injury. Autoantibodies are more common in COVID-19 than controls and some (including against MYL7, UCH-L1, and GRIN3B) are more frequent with altered consciousness. Additionally, convalescent participants with neurological complications show elevated GFAP and NfL, unrelated to attenuated systemic inflammatory mediators and to autoantibody responses. Overall, neurological complications of COVID-19 are associated with evidence of neuroglial injury in both acute and late disease and these correlate with dysregulated innate and adaptive immune responses acutely.
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Affiliation(s)
- Benedict D Michael
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK.
- NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool, Liverpool, L69 7BE, UK.
- The Walton Centre NHS Foundation Trust, Liverpool, L9 7BB, UK.
| | - Cordelia Dunai
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
- NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool, Liverpool, L69 7BE, UK
| | - Edward J Needham
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Kukatharmini Tharmaratnam
- Health Data Science, Institute of Population Health, University of Liverpool, Liverpool, L69 3GF, UK
| | - Robyn Williams
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
- Departments of Neurology and Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Yun Huang
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Sarah A Boardman
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Jordan J Clark
- University of Liverpool, Liverpool, L69 7BE, UK
- Department of Microbiology, Icahn School of Medicine, Mount Sinai, NY, 10029, USA
- Center for Vaccine Research and Pandemic Preparedness (C-VARPP), Icahn School of Medicine, Mount Sinai, NY, 10029, USA
| | - Parul Sharma
- Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, UK
| | - Krishanthi Subramaniam
- Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, UK
| | - Greta K Wood
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Ceryce Collie
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Richard Digby
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Alexander Ren
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Emma Norton
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Maya Leibowitz
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Soraya Ebrahimi
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Andrew Fower
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
| | - Hannah Fox
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
| | - Esteban Tato
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 8AF, UK
- NIHR Maudsley Biomedical Research Centre, King's College London, London, SE5 8AF, UK
| | - Mark A Ellul
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
- The Walton Centre NHS Foundation Trust, Liverpool, L9 7BB, UK
| | - Geraint Sunderland
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Marie Held
- Centre for Cell Imaging, Liverpool Shared Research Facilities, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Claire Hetherington
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Franklyn N Egbe
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Alish Palmos
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 8AF, UK
- NIHR Maudsley Biomedical Research Centre, King's College London, London, SE5 8AF, UK
| | - Kathy Stirrups
- NIHR BioResource, Cambridge University Hospitals NHS Foundation, Cambridge, CB2 0QQ, UK
- Department of Haematology, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Alexander Grundmann
- Clinical Neurosciences, Clinical and Experimental Science, Faculty of Medicine, University of Southampton, Southampton, SO17 1BF, UK
- Department of Neurology, Wessex Neurological Centre, University Hospital Southampton NHS Foundation Trust, Southampton, SO16 6YD, UK
| | - Anne-Cecile Chiollaz
- Département de médecine interne des spécialités (DEMED), University of Geneva, Geneva, CH-1211, Switzerland
| | - Jean-Charles Sanchez
- Département de médecine interne des spécialités (DEMED), University of Geneva, Geneva, CH-1211, Switzerland
| | - James P Stewart
- Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, UK
| | - Michael Griffiths
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
| | - Tom Solomon
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
- NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool, Liverpool, L69 7BE, UK
- The Walton Centre NHS Foundation Trust, Liverpool, L9 7BB, UK
- The Pandemic Institute, Liverpool, L7 3FA, UK
| | - Gerome Breen
- Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, SE5 8AF, UK
- NIHR Maudsley Biomedical Research Centre, King's College London, London, SE5 8AF, UK
| | - Alasdair J Coles
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Nathalie Kingston
- NIHR BioResource, Cambridge University Hospitals NHS Foundation, Cambridge, CB2 0QQ, UK
- University of Cambridge, Cambridge, CB2 0QQ, UK
| | - John R Bradley
- NIHR BioResource, Cambridge University Hospitals NHS Foundation, Cambridge, CB2 0QQ, UK
- Department of Medicine, School of Clinical Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
| | - Patrick F Chinnery
- Department of Clinical Neurosciences, University of Cambridge, Cambridge, CB2 0QQ, UK
- NIHR BioResource, Cambridge University Hospitals NHS Foundation, Cambridge, CB2 0QQ, UK
| | - Jonathan Cavanagh
- Centre for Immunology, School of Infection & Immunity, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G12 8TA, UK
| | - Sarosh R Irani
- Oxford Autoimmune Neurology Group, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
- Departments of Neurology and Neuroscience, Mayo Clinic, Jacksonville, FL, 32224, USA
| | - Angela Vincent
- Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, OX3 9DU, UK
| | - J Kenneth Baillie
- Roslin Institute, University of Edinburgh, Edinburgh, EH25 9RG, UK
- Intensive Care Unit, Royal Infirmary of Edinburgh, Edinburgh, EH10 5HF, UK
| | - Peter J Openshaw
- National Heart and Lung Institute, Imperial College London, London, SW7 2BX, UK
- Imperial College Healthcare NHS Trust, London, W2 1NY, UK
| | - Malcolm G Semple
- Clinical Infection, Microbiology, and Immunology, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L69 7BE, UK
- NIHR Health Protection Research Unit (HPRU) in Emerging and Zoonotic Infections at University of Liverpool, Liverpool, L69 7BE, UK
- Respiratory Unit, Alder Hey Children's Hospital NHS Foundation Trust, Liverpool, L14 5AB, UK
| | - Leonie S Taams
- Centre for Inflammation Biology and Cancer Immunology, King's College London, London, SE1 9RT, UK
| | - David K Menon
- Division of Anaesthesia, Department of Medicine, University of Cambridge, Cambridge, CB2 0QQ, UK
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6
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Cohn H, Bloom N, Cai G, Clark JJ, Tarke A, Bermúdez-González MC, Altman DR, Lugo LA, Lobo FP, Marquez S, Chen JQ, Ren W, Qin L, Yates JL, Hunt DT, Lee WT, Crotty S, Krammer F, Grifoni A, Sette A, Simon V, Coelho CH. Mpox vaccine and infection-driven human immune signatures: an immunological analysis of an observational study. Lancet Infect Dis 2023; 23:1302-1312. [PMID: 37475115 PMCID: PMC10826035 DOI: 10.1016/s1473-3099(23)00352-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Revised: 05/18/2023] [Accepted: 05/19/2023] [Indexed: 07/22/2023]
Abstract
BACKGROUND Monkeypox virus has recently infected more than 88 000 people, raising concerns about our preparedness against this emerging viral pathogen. Licensed and approved for mpox, the JYNNEOS vaccine has fewer side-effects than previous smallpox vaccines and has shown immunogenicity against monkeypox in animal models. This study aims to elucidate human immune responses to JYNNEOS vaccination compared with mpox-induced immunity. METHODS Peripheral blood mononuclear cells and sera were obtained from ten individuals vaccinated with one or two doses of JYNNEOS and six individuals diagnosed with monkeypox virus infection. Samples were obtained from seven individuals before vaccination to serve as a baseline. We examined the polyclonal serum (ELISA) and single B-cell (heavy chain gene and transcriptome data) antibody repertoires and T-cell responses (activation-induced marker and intracellular cytokine staining assays) induced by the JYNNEOS vaccine versus monkeypox virus infection. FINDINGS All participants were men between the ages of 21 and 60 years, except for one woman in the group of mpox-convalescent individuals, and none had previous orthopoxvirus exposure. All mpox cases were mild. Vaccinee samples were collected 6-33 days after the first dose and 5-40 days after the second dose. Mpox-convalescent samples were collected 20-102 days after infection. In vaccine recipients, gene-level plasmablast and antibody responses were negligible and sera displayed moderate binding to recombinant orthopoxviral proteins (A29L, A35R, E8L, A30L, A27L, A33R, B18R, and L1R) and native proteins from the 2022 monkeypox outbreak strain. By contrast, recent monkeypox virus infection (within 20-102 days) induced robust serum antibody responses to monkeypox virus proteins and to native monkeypox virus proteins from a viral isolate obtained during the 2022 outbreak. JYNNEOS vaccine recipients presented robust orthopoxviral CD4+ and CD8+ T-cell responses. INTERPRETATION Infection with monkeypox virus resulted in robust B-cell and T-cell responses, whereas immunisation with JYNNEOS elicited more robust T-cell responses. These data can help to inform vaccine design and policies for preventing mpox in humans. FUNDING National Cancer Institute (National Institutes of Health), National Institute of Allergy and Infectious Diseases (National Institutes of Health), and Icahn School of Medicine.
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Affiliation(s)
- Hallie Cohn
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Nathaniel Bloom
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, USA
| | - Gianna Cai
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Jordan J. Clark
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Alison Tarke
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, USA
| | - Maria C. Bermúdez-González
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai New York, NY, USA
| | - Deena R. Altman
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Luz Amarilis Lugo
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Francisco Pereira Lobo
- Department of Genetics, Ecology and Evolution, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil
| | - Susanna Marquez
- Doctoral Program in Design, Manufacture, and Management of Industrial Projects, Universitat Politècnica de València, Valencia, Spain
| | - PVI study group
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Department of Pathology, University of California, San Diego, La Jolla, CA, USA
| | | | | | | | - Jennifer L. Yates
- Division of Infectious Diseases, Wadsworth Center, New York State Department of Health, Albany, NY, USA
- Biomedical Sciences, The School of Public Health, The University at Albany, Albany, NY
| | - Danielle T. Hunt
- Division of Infectious Diseases, Wadsworth Center, New York State Department of Health, Albany, NY, USA
| | - William T. Lee
- Division of Infectious Diseases, Wadsworth Center, New York State Department of Health, Albany, NY, USA
- Biomedical Sciences, The School of Public Health, The University at Albany, Albany, NY
| | - Shane Crotty
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, USA
- Department of Medicine, Division of Infectious Diseases and Global Public Health, University of California, San Diego, La Jolla, CA, USA
| | - Florian Krammer
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Alba Grifoni
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, USA
| | - Alessandro Sette
- Center for Infectious Disease and Vaccine Research, La Jolla Institute for Immunology, La Jolla, CA, USA
- Department of Pathology, University of California, San Diego, La Jolla, CA, USA
| | - Viviana Simon
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Division of Infectious Diseases, Department of Medicine, Icahn School of Medicine at Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Department of Pathology, Molecular and Cell-Based Medicine, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- The Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Camila H. Coelho
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Center for Vaccine Research and Pandemic Preparedness, Icahn School of Medicine at Mount Sinai New York, NY, USA
- Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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7
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Han X, Clark JJ, Sharma P, Bentley EG, Kipar A, Alsayer M, Ren X, Robinson A, Alaidarous S, Mu Y, Sun Y, Hiscox JA, Zhou EM, Stewart JP, Zhao Q. Amino acids 1811-1960 of myosin heavy chain 9 is involved in murine gammaherpesvirus 68 infection. Virology 2023; 587:109849. [PMID: 37515945 DOI: 10.1016/j.virol.2023.109849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 07/31/2023]
Abstract
Myosin heavy chain 9 (MYH9) has been identified as a crucial factor in gammaherpesvirus infection. Murine gammaherpesvirus 68 (MHV-68) was used as an appropriate viral model for investigating gammaherpesviruses in vivo and developing antiviral treatments. However, the roles of MYH9 in MHV-68 infection have not been documented. In the study, the relationship between the expression of MYH9 and MHV-68 infection and MYH9 as the antiviral target were analyzed. The results revealed that MYH9 was enriched on the cell surface and co-localized with MHV-68 upon viral infection. Knocking down MYH9 with siRNA or using the specific inhibitor of MYH9 activity, Blebbistatin, resulted in the decreasing of MHV-68 infection. Furthermore, polyclonal antibodies against MYH9 reduced infection by approximately 74% at a dose of 100 μg/ml. The study determined that MYH9 contributes to MHV-68 infection by interacting with viral glycoprotein 150 (gp150) in the BHK-21 cell membrane. The specific region of MYH9, amino acids 1811-1960 (C-150), was identified as the key domain involved in the interaction with MHV-68 gp150 and was found to inhibit MHV-68 infection. Moreover, C-150 was also shown to decrease HSV-1 infection in Vero cells by approximately 73%. Both C-150 and Blebbistatin were found to inhibit MHV-68 replication and reduce histopathological lesions in vivo in C57BL/6J mice. Taken together, these findings suggested that MYH9 is crucial for MHV-68 infection through its interaction with viral gp150 and that C-150 may be a promising antiviral target for inhibiting MHV-68 infection in vitro and in vivo.
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Affiliation(s)
- Ximeng Han
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China; Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Jordan J Clark
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Parul Sharma
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Eleanor G Bentley
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Anja Kipar
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom; Laboratory for Animal Model Pathology, Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Switzerland
| | - Mohammed Alsayer
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Xiaolei Ren
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Amy Robinson
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Sondus Alaidarous
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - Yang Mu
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Yani Sun
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China
| | - Julian A Hiscox
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom
| | - En-Min Zhou
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China.
| | - James P Stewart
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, L3 5RF, United Kingdom.
| | - Qin Zhao
- Department of Preventive Veterinary Medicine, College of Veterinary Medicine, Northwest A&F University, Yangling, Shannxi, 712100, China.
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8
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De Neck S, Penrice-Randal R, Clark JJ, Sharma P, Bentley EG, Kirby A, Mega DF, Han X, Owen A, Hiscox JA, Stewart JP, Kipar A. The Stereotypic Response of the Pulmonary Vasculature to Respiratory Viral Infections: Findings in Mouse Models of SARS-CoV-2, Influenza A and Gammaherpesvirus Infections. Viruses 2023; 15:1637. [PMID: 37631979 PMCID: PMC10458810 DOI: 10.3390/v15081637] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/14/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
The respiratory system is the main target of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the cause of coronavirus disease 19 (COVID-19) where acute respiratory distress syndrome is considered the leading cause of death. Changes in pulmonary blood vessels, among which an endothelialitis/endotheliitis has been particularly emphasized, have been suggested to play a central role in the development of acute lung injury. Similar vascular changes are also observed in animal models of COVID-19. The present study aimed to determine whether the latter are specific for SARS-CoV-2 infection, investigating the vascular response in the lungs of mice infected with SARS-CoV-2 and other respiratory viruses (influenza A and murine gammaherpesvirus) by in situ approaches (histology, immunohistology, morphometry) combined with RNA sequencing and bioinformatic analysis. Non-selective recruitment of monocytes and T and B cells from larger muscular veins and arteries was observed with all viruses, matched by a comparable transcriptional response. There was no evidence of endothelial cell infection in any of the models. Both the morphological investigation and the transcriptomics approach support the interpretation that the lung vasculature in mice mounts a stereotypic response to alveolar and respiratory epithelial damage. This may have implications for the treatment and management of respiratory disease in humans.
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Affiliation(s)
- Simon De Neck
- Laboratory for Animal Model Pathology, Vetsuisse Faculty, Institute of Veterinary Pathology, University of Zurich, 8057 Zurich, Switzerland;
| | - Rebekah Penrice-Randal
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - Jordan J. Clark
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - Parul Sharma
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - Eleanor G. Bentley
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - Adam Kirby
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - Daniele F. Mega
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - Ximeng Han
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - Andrew Owen
- Centre of Excellence in Long-Acting Therapeutics (CELT), Department of Pharmacology and Therapeutics, University of Liverpool, Liverpool L3 3RF, UK;
| | - Julian A. Hiscox
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - James P. Stewart
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
| | - Anja Kipar
- Laboratory for Animal Model Pathology, Vetsuisse Faculty, Institute of Veterinary Pathology, University of Zurich, 8057 Zurich, Switzerland;
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 3RF, UK; (R.P.-R.); (J.J.C.); (P.S.); (E.G.B.); (A.K.); (D.F.M.); (X.H.); (J.A.H.); (J.P.S.)
- Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, University of Helsinki, 00790 Helsinki, Finland
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9
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Seehusen F, Clark JJ, Sharma P, Bentley EG, Kirby A, Subramaniam K, Wunderlin-Giuliani S, Hughes GL, Patterson EI, Michael BD, Owen A, Hiscox JA, Stewart JP, Kipar A. Neuroinvasion and Neurotropism by SARS-CoV-2 Variants in the K18-hACE2 Mouse. Viruses 2022; 14:1020. [PMID: 35632761 PMCID: PMC9146514 DOI: 10.3390/v14051020] [Citation(s) in RCA: 45] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 05/07/2022] [Accepted: 05/09/2022] [Indexed: 12/15/2022] Open
Abstract
Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) not only affects the respiratory tract but also causes neurological symptoms such as loss of smell and taste, headache, fatigue or severe cerebrovascular complications. Using transgenic mice expressing human angiotensin-converting enzyme 2 (hACE2), we investigated the spatiotemporal distribution and pathomorphological features in the CNS following intranasal infection with SARS-CoV-2 variants, as well as after prior influenza A virus infection. Apart from Omicron, we found all variants to frequently spread to and within the CNS. Infection was restricted to neurons and appeared to spread from the olfactory bulb mainly in basally oriented regions in the brain and into the spinal cord, independent of ACE2 expression and without evidence of neuronal cell death, axonal damage or demyelination. However, microglial activation, microgliosis and a mild macrophage and T cell dominated inflammatory response was consistently observed, accompanied by apoptotic death of endothelial, microglial and immune cells, without their apparent infection. Microgliosis and immune cell apoptosis indicate a potential role of microglia for pathogenesis and viral effect in COVID-19 and the possible impairment of neurological functions, especially in long COVID. These data may also be informative for the selection of therapeutic candidates and broadly support the investigation of agents with adequate penetration into relevant regions of the CNS.
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Affiliation(s)
- Frauke Seehusen
- Laboratory for Animal Model Pathology, Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (F.S.); (S.W.-G.)
| | - Jordan J. Clark
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 5RF, UK; (J.J.C.); (P.S.); (E.G.B.); (A.K.); (K.S.); (J.A.H.); (J.P.S.)
| | - Parul Sharma
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 5RF, UK; (J.J.C.); (P.S.); (E.G.B.); (A.K.); (K.S.); (J.A.H.); (J.P.S.)
| | - Eleanor G. Bentley
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 5RF, UK; (J.J.C.); (P.S.); (E.G.B.); (A.K.); (K.S.); (J.A.H.); (J.P.S.)
| | - Adam Kirby
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 5RF, UK; (J.J.C.); (P.S.); (E.G.B.); (A.K.); (K.S.); (J.A.H.); (J.P.S.)
| | - Krishanthi Subramaniam
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 5RF, UK; (J.J.C.); (P.S.); (E.G.B.); (A.K.); (K.S.); (J.A.H.); (J.P.S.)
| | - Sabina Wunderlin-Giuliani
- Laboratory for Animal Model Pathology, Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (F.S.); (S.W.-G.)
| | - Grant L. Hughes
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK; (G.L.H.); (E.I.P.)
| | - Edward I. Patterson
- Departments of Vector Biology and Tropical Disease Biology, Centre for Neglected Tropical Disease, Liverpool School of Tropical Medicine, Liverpool L3 5QA, UK; (G.L.H.); (E.I.P.)
| | - Benedict D. Michael
- Department of Clinical Infection Microbiology and Immunology and NIHR Health Protection Research Unit in Emerging and Zoonotic Infections, Institute of Infection, Veterinary, and Ecological Sciences, University of Liverpool, Liverpool L69 7BE, UK;
- Department of Neurology, The Walton Centre NHS Foundation Trust, Liverpool L9 7AL, UK
| | - Andrew Owen
- Department of Pharmacology and Therapeutics, Centre of Excellence in Long-Acting Therapeutics (CELT), University of Liverpool, Liverpool L3 3NY, UK;
| | - Julian A. Hiscox
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 5RF, UK; (J.J.C.); (P.S.); (E.G.B.); (A.K.); (K.S.); (J.A.H.); (J.P.S.)
| | - James P. Stewart
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 5RF, UK; (J.J.C.); (P.S.); (E.G.B.); (A.K.); (K.S.); (J.A.H.); (J.P.S.)
| | - Anja Kipar
- Laboratory for Animal Model Pathology, Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, 8057 Zurich, Switzerland; (F.S.); (S.W.-G.)
- Department of Infection Biology and Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool L3 5RF, UK; (J.J.C.); (P.S.); (E.G.B.); (A.K.); (K.S.); (J.A.H.); (J.P.S.)
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10
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Huo J, Mikolajek H, Le Bas A, Clark JJ, Sharma P, Kipar A, Dormon J, Norman C, Weckener M, Clare DK, Harrison PJ, Tree JA, Buttigieg KR, Salguero FJ, Watson R, Knott D, Carnell O, Ngabo D, Elmore MJ, Fotheringham S, Harding A, Moynié L, Ward PN, Dumoux M, Prince T, Hall Y, Hiscox JA, Owen A, James W, Carroll MW, Stewart JP, Naismith JH, Owens RJ. A potent SARS-CoV-2 neutralising nanobody shows therapeutic efficacy in the Syrian golden hamster model of COVID-19. Nat Commun 2021; 12:5469. [PMID: 34552091 PMCID: PMC8458290 DOI: 10.1038/s41467-021-25480-z] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2021] [Accepted: 08/12/2021] [Indexed: 12/18/2022] Open
Abstract
SARS-CoV-2 remains a global threat to human health particularly as escape mutants emerge. There is an unmet need for effective treatments against COVID-19 for which neutralizing single domain antibodies (nanobodies) have significant potential. Their small size and stability mean that nanobodies are compatible with respiratory administration. We report four nanobodies (C5, H3, C1, F2) engineered as homotrimers with pmolar affinity for the receptor binding domain (RBD) of the SARS-CoV-2 spike protein. Crystal structures show C5 and H3 overlap the ACE2 epitope, whilst C1 and F2 bind to a different epitope. Cryo Electron Microscopy shows C5 binding results in an all down arrangement of the Spike protein. C1, H3 and C5 all neutralize the Victoria strain, and the highly transmissible Alpha (B.1.1.7 first identified in Kent, UK) strain and C1 also neutralizes the Beta (B.1.35, first identified in South Africa). Administration of C5-trimer via the respiratory route showed potent therapeutic efficacy in the Syrian hamster model of COVID-19 and separately, effective prophylaxis. The molecule was similarly potent by intraperitoneal injection.
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MESH Headings
- Administration, Intranasal
- Animals
- Antibodies, Neutralizing/administration & dosage
- Antibodies, Neutralizing/genetics
- Antibodies, Neutralizing/immunology
- Antibodies, Neutralizing/pharmacology
- Cryoelectron Microscopy
- Crystallography, X-Ray
- Disease Models, Animal
- Dose-Response Relationship, Immunologic
- Epitopes/chemistry
- Epitopes/metabolism
- Female
- Male
- Mesocricetus
- Neutralization Tests
- SARS-CoV-2/drug effects
- Single-Domain Antibodies/administration & dosage
- Single-Domain Antibodies/immunology
- Single-Domain Antibodies/metabolism
- Single-Domain Antibodies/pharmacology
- Spike Glycoprotein, Coronavirus/chemistry
- Spike Glycoprotein, Coronavirus/metabolism
- COVID-19 Drug Treatment
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Affiliation(s)
- Jiandong Huo
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Protein Production UK, The Rosalind Franklin Institute - Diamond Light Source, The Research Complex at Harwell, Science Campus, Didcot, UK
| | | | - Audrey Le Bas
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Protein Production UK, The Rosalind Franklin Institute - Diamond Light Source, The Research Complex at Harwell, Science Campus, Didcot, UK
| | - Jordan J Clark
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Parul Sharma
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
| | - Anja Kipar
- Department of Infection Biology & Microbiomes, Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Liverpool, UK
- Laboratory for Animal Model Pathology, Institute of Veterinary Pathology, Vetsuisse Faculty, University of Zurich, Zurich, Switzerland
| | - Joshua Dormon
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK
- Protein Production UK, The Rosalind Franklin Institute - Diamond Light Source, The Research Complex at Harwell, Science Campus, Didcot, UK
| | - Chelsea Norman
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK
- Protein Production UK, The Rosalind Franklin Institute - Diamond Light Source, The Research Complex at Harwell, Science Campus, Didcot, UK
| | - Miriam Weckener
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK
| | - Daniel K Clare
- Diamond Light Source Ltd, Harwell Science Campus, Didcot, UK
| | - Peter J Harrison
- Protein Production UK, The Rosalind Franklin Institute - Diamond Light Source, The Research Complex at Harwell, Science Campus, Didcot, UK
- Diamond Light Source Ltd, Harwell Science Campus, Didcot, UK
| | - Julia A Tree
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - Karen R Buttigieg
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | | | - Robert Watson
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - Daniel Knott
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - Oliver Carnell
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - Didier Ngabo
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - Michael J Elmore
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - Susan Fotheringham
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - Adam Harding
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Lucile Moynié
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK
| | - Philip N Ward
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK
- Protein Production UK, The Rosalind Franklin Institute - Diamond Light Source, The Research Complex at Harwell, Science Campus, Didcot, UK
| | - Maud Dumoux
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK
| | - Tessa Prince
- Diamond Light Source Ltd, Harwell Science Campus, Didcot, UK
| | - Yper Hall
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
| | - Julian A Hiscox
- Diamond Light Source Ltd, Harwell Science Campus, Didcot, UK
- Department of Preventive Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Infectious Diseases Horizontal Technology Centre (ID HTC), A*STAR, Singapore, Singapore
| | - Andrew Owen
- Department of Pharmacology and Therapeutics, Centre of Excellence in Long-acting Therapeutics (CELT), University of Liverpool, Liverpool, UK
| | - William James
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
| | - Miles W Carroll
- National Infection Service, Public Health England, Porton Down, Salisbury, UK
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - James P Stewart
- Diamond Light Source Ltd, Harwell Science Campus, Didcot, UK
- Department of Preventive Veterinary Medicine, Northwest A&F University, Yangling, Shaanxi, China
- Department of Infectious Disease, University of Georgia, Georgia, USA
| | - James H Naismith
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK.
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.
- Protein Production UK, The Rosalind Franklin Institute - Diamond Light Source, The Research Complex at Harwell, Science Campus, Didcot, UK.
| | - Raymond J Owens
- Structural Biology, The Rosalind Franklin Institute, Harwell Science Campus, Didcot, UK.
- Division of Structural Biology, The Wellcome Centre for Human Genetics, University of Oxford, Oxford, UK.
- Protein Production UK, The Rosalind Franklin Institute - Diamond Light Source, The Research Complex at Harwell, Science Campus, Didcot, UK.
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11
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Salzer R, Clark JJ, Vaysburd M, Chang VT, Albecka A, Kiss L, Sharma P, Gonzalez Llamazares A, Kipar A, Hiscox JA, Owen A, Aricescu AR, Stewart JP, James LC, Löwe J. Single-dose immunisation with a multimerised SARS-CoV-2 receptor binding domain (RBD) induces an enhanced and protective response in mice. FEBS Lett 2021; 595:2323-2340. [PMID: 34331769 PMCID: PMC8426897 DOI: 10.1002/1873-3468.14171] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Revised: 07/02/2021] [Accepted: 07/13/2021] [Indexed: 11/23/2022]
Abstract
The COVID-19 pandemic, caused by the SARS-CoV-2 coronavirus, has triggered a worldwide health emergency. Here, we show that ferritin-like Dps from hyperthermophilic Sulfolobus islandicus, covalently coupled with SARS-CoV-2 antigens via the SpyCatcher system, forms stable multivalent dodecameric vaccine nanoparticles that remain intact even after lyophilisation. Immunisation experiments in mice demonstrated that the SARS-CoV-2 receptor binding domain (RBD) coupled to Dps (RBD-S-Dps) elicited a higher antibody titre and an enhanced neutralising antibody response compared to monomeric RBD. A single immunisation with RBD-S-Dps completely protected hACE2-expressing mice from serious illness and led to viral clearance from the lungs upon SARS-CoV-2 infection. Our data highlight that multimerised SARS-CoV-2 subunit vaccines are a highly efficacious modality, particularly when combined with an ultra-stable scaffold.
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Affiliation(s)
- Ralf Salzer
- MRC Laboratory of Molecular BiologyCambridgeUK
| | - Jordan J. Clark
- Institute of Infection, Veterinary and Ecological SciencesUniversity of LiverpoolUK
| | | | | | | | - Leo Kiss
- MRC Laboratory of Molecular BiologyCambridgeUK
| | - Parul Sharma
- Institute of Infection, Veterinary and Ecological SciencesUniversity of LiverpoolUK
| | | | - Anja Kipar
- Institute of Infection, Veterinary and Ecological SciencesUniversity of LiverpoolUK
- Laboratory for Animal Model PathologyInstitute of Veterinary PathologyVetsuisse FacultyUniversity of ZurichSwitzerland
| | - Julian A. Hiscox
- Institute of Infection, Veterinary and Ecological SciencesUniversity of LiverpoolUK
| | - Andrew Owen
- Department of Pharmacology and TherapeuticsCentre of Excellence in Long‐acting Therapeutics (CELT)University of LiverpoolUK
| | | | - James P. Stewart
- Institute of Infection, Veterinary and Ecological SciencesUniversity of LiverpoolUK
| | | | - Jan Löwe
- MRC Laboratory of Molecular BiologyCambridgeUK
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12
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Sanchez-Velazquez R, de Lorenzo G, Tandavanitj R, Setthapramote C, Bredenbeek PJ, Bozzacco L, MacDonald MR, Clark JJ, Rice CM, Patel AH, Kohl A, Varjak M. Generation of a reporter yellow fever virus for high throughput antiviral assays. Antiviral Res 2020; 183:104939. [PMID: 32980446 PMCID: PMC7649875 DOI: 10.1016/j.antiviral.2020.104939] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 09/16/2020] [Accepted: 09/19/2020] [Indexed: 01/30/2023]
Abstract
Yellow fever virus (YFV), a member of the Flaviviridae family, is an arthropod-borne virus that can cause severe disease in humans with a lethality rate of up to 60%. Since 2017, increases in YFV activity in areas of South America and Africa have been described. Although a vaccine is available, named strain 17D (Theiler and Smith, 1937), it is contraindicated for use in the elderly, expectant mothers, immunocompromised people, among others. To this day there is no antiviral treatment against YFV to reduce the severity of viral infection. Here, we used a circular polymerase extension reaction (CPER)-based reverse genetics approach to generate a full-length reporter virus (YFVhb) by introducing a small HiBit tag in the NS1 protein. The reporter virus replicates at a similar rate to the parental YFV in HuH-7 cells. Using YFVhb, we designed a high throughput antiviral screening luciferase-based assay to identify inhibitors that target any step of the viral replication cycle. We validated our assay by using a range of inhibitors including drugs, immune sera and neutralizing single chain variable fragments (scFv). In light of the recent upsurge in YFV and a potential spread of the virus, this assay is a further tool in the development of antiviral therapy against YFV. Bacteria-free approach to rescue yellow fever virus. Novel tagged yellow fever virus that permits quantifiable assays. Usage of the novel tagged virus for screening of antivirals and immune sera. Novel antiviral compounds against YFV were identified.
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Affiliation(s)
| | | | | | | | - Peter J Bredenbeek
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Leonia Bozzacco
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Margaret R MacDonald
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Jordan J Clark
- MRC-University of Glasgow, Centre for Virus Research, Glasgow, UK
| | - Charles M Rice
- Laboratory of Virology and Infectious Disease, The Rockefeller University, New York, NY, USA
| | - Arvind H Patel
- MRC-University of Glasgow, Centre for Virus Research, Glasgow, UK
| | - Alain Kohl
- MRC-University of Glasgow, Centre for Virus Research, Glasgow, UK
| | - Margus Varjak
- MRC-University of Glasgow, Centre for Virus Research, Glasgow, UK.
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13
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Clark JJ, Gilray J, Orton RJ, Baird M, Wilkie G, Filipe ADS, Johnson N, McInnes CJ, Kohl A, Biek R. Population genomics of louping ill virus provide new insights into the evolution of tick-borne flaviviruses. PLoS Negl Trop Dis 2020; 14:e0008133. [PMID: 32925939 PMCID: PMC7515184 DOI: 10.1371/journal.pntd.0008133] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Revised: 09/24/2020] [Accepted: 08/07/2020] [Indexed: 12/30/2022] Open
Abstract
The emergence and spread of tick-borne arboviruses pose an increased challenge to human and animal health. In Europe this is demonstrated by the increasingly wide distribution of tick-borne encephalitis virus (TBEV, Flavivirus, Flaviviridae), which has recently been found in the United Kingdom (UK). However, much less is known about other tick-borne flaviviruses (TBFV), such as the closely related louping ill virus (LIV), an animal pathogen which is endemic to the UK and Ireland, but which has been detected in other parts of Europe including Scandinavia and Russia. The emergence and potential spatial overlap of these viruses necessitates improved understanding of LIV genomic diversity, geographic spread and evolutionary history. We sequenced a virus archive composed of 22 LIV isolates which had been sampled throughout the UK over a period of over 80 years. Combining this dataset with published virus sequences, we detected no sign of recombination and found low diversity and limited evidence for positive selection in the LIV genome. Phylogenetic analysis provided evidence of geographic clustering as well as long-distance movement, including movement events that appear recent. However, despite genomic data and an 80-year time span, we found that the data contained insufficient temporal signal to reliably estimate a molecular clock rate for LIV. Additional analyses revealed that this also applied to TBEV, albeit to a lesser extent, pointing to a general problem with phylogenetic dating for TBFV. The 22 LIV genomes generated during this study provide a more reliable LIV phylogeny, improving our knowledge of the evolution of tick-borne flaviviruses. Our inability to estimate a molecular clock rate for both LIV and TBEV suggests that temporal calibration of tick-borne flavivirus evolution should be interpreted with caution and highlight a unique aspect of these viruses which may be explained by their reliance on tick vectors. Tick-borne pathogens represent a major emerging threat to public health and in recent years have been expanding into new areas. LIV is a neglected virus endemic to the UK and Ireland (though it has been detected in Scandinavia and Russia) which is closely related to the major human pathogen TBEV, but predominantly causes disease in sheep and grouse. The recent detection of TBEV in the UK, which has also emerged elsewhere in Europe, requires more detailed understanding of the spread and sequence diversity of LIV. This could be important for diagnosis and vaccination, but also to improve our understanding of the evolution and emergence of these tick-borne viruses. Here we describe the sequencing of 22 LIV isolates which have been sampled from several host species across the past century. We have utilised this dataset to investigate the evolutionary pressures that LIV is subjected to and have explored the evolution of LIV using phylogenetic analysis. Crucially we were unable to estimate a reliable molecular clock rate for LIV and found that this problem also extends to a larger phylogeny of TBEV sequences. This work highlights a previously unknown caveat of tick-borne flavivirus evolutionary analysis which may be important for understanding the evolution of these important pathogens.
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Affiliation(s)
- Jordan J. Clark
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
- Moredun Research Institute, Edinburgh, United Kingdom
- * E-mail: (JC); (RB)
| | - Janice Gilray
- Moredun Research Institute, Edinburgh, United Kingdom
| | - Richard J. Orton
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Margaret Baird
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Gavin Wilkie
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Ana da Silva Filipe
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Nicholas Johnson
- Animal and Plant Health Agency, Addlestone, Surrey, United Kingdom
- Faculty of Health and Medical Science, University of Surrey, Guildford, Surrey, United Kingdom
| | | | - Alain Kohl
- MRC-University of Glasgow Centre for Virus Research, Glasgow, United Kingdom
| | - Roman Biek
- Institute of Biodiversity, Animal Health and Comparative Medicine - University of Glasgow, Glasgow, United Kingdom
- * E-mail: (JC); (RB)
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14
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Clark JJ, Benson ML, Smith RD, Carlson HA. Inherent versus induced protein flexibility: Comparisons within and between apo and holo structures. PLoS Comput Biol 2019; 15:e1006705. [PMID: 30699115 PMCID: PMC6370239 DOI: 10.1371/journal.pcbi.1006705] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 02/11/2019] [Accepted: 12/07/2018] [Indexed: 11/18/2022] Open
Abstract
Understanding how ligand binding influences protein flexibility is important, especially in rational drug design. Protein flexibility upon ligand binding is analyzed herein using 305 proteins with 2369 crystal structures with ligands (holo) and 1679 without (apo). Each protein has at least two apo and two holo structures for analysis. The inherent variation in structures with and without ligands is first established as a baseline. This baseline is then compared to the change in conformation in going from the apo to holo states to probe induced flexibility. The inherent backbone flexibility across the apo structures is roughly the same as the variation across holo structures. The induced backbone flexibility across apo-holo pairs is larger than that of the apo or holo states, but the increase in RMSD is less than 0.5 Å. Analysis of χ1 angles revealed a distinctly different pattern with significant influences seen for ligand binding on side-chain conformations in the binding site. Within the apo and holo states themselves, the variation of the χ1 angles is the same. However, the data combining both apo and holo states show significant displacements. Upon ligand binding, χ1 angles are frequently pushed to new orientations outside the range seen in the apo states. Influences on binding-site variation could not be easily attributed to features such as ligand size or x-ray structure resolution. By combining these findings, we find that most binding site flexibility is compatible with the common practice in flexible docking, where backbones are kept rigid and side chains are allowed some degree of flexibility.
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Affiliation(s)
- Jordan J. Clark
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Mark L. Benson
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Richard D. Smith
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, United States of America
| | - Heather A. Carlson
- Department of Medicinal Chemistry, University of Michigan, Ann Arbor, Michigan, United States of America
- Department of Computational Medicine and Bioinformatics, University of Michigan, Ann Arbor, Michigan, United States of America
- * E-mail:
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15
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Schindler AG, Meabon JS, Pagulayan KF, Hendrickson RC, Meeker KD, Cline M, Li G, Sikkema C, Wilkinson CW, Perl DP, Raskind MR, Peskind ER, Clark JJ, Cook DG. Blast-related disinhibition and risk seeking in mice and combat Veterans: Potential role for dysfunctional phasic dopamine release. Neurobiol Dis 2017; 106:23-34. [PMID: 28619545 DOI: 10.1016/j.nbd.2017.06.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 05/22/2017] [Accepted: 06/09/2017] [Indexed: 01/23/2023] Open
Abstract
Mild traumatic brain injury (mTBI) caused by exposure to high explosives has been called the "signature injury" of the wars in Iraq and Afghanistan. There is a wide array of chronic neurological and behavioral symptoms associated with blast-induced mTBI. However, the underlying mechanisms are not well understood. Here we used a battlefield-relevant mouse model of blast-induced mTBI and in vivo fast-scan cyclic voltammetry (FSCV) to investigate whether the mesolimbic dopamine system contributes to the mechanisms underlying blast-induced behavioral dysfunction. In mice, blast exposure increased novelty seeking, a behavior closely associated with disinhibition and risk for subsequent maladaptive behaviors. In keeping with this, we found that veterans with blast-related mTBI reported greater disinhibition and risk taking on the Frontal Systems Behavior Scale (FrSBe). In addition, in mice we report that blast exposure causes potentiation of evoked phasic dopamine release in the nucleus accumbens. Taken together these findings suggest that blast-induced changes in the dopaminergic system may mediate aspects of the complex array of behavioral dysfunctions reported in blast-exposed veterans.
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Affiliation(s)
- A G Schindler
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - J S Meabon
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - K F Pagulayan
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - R C Hendrickson
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - K D Meeker
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - M Cline
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - G Li
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - C Sikkema
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - C W Wilkinson
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - D P Perl
- Department of Pathology, Center for Neuroscience and Regenerative Medicine, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA
| | - M R Raskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - E R Peskind
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA; Mental Illness Research, Education, and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA
| | - J J Clark
- Department of Psychiatry and Behavioral Sciences, University of Washington, Seattle, WA, 98195, USA
| | - D G Cook
- Geriatric Research Education and Clinical Center, VA Puget Sound Health Care System, Seattle, WA 98108, USA; Department of Medicine, University of Washington, Seattle, WA 98195, USA; Department of Pharmacology, University of Washington, Seattle, WA 98195, USA.
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Cumberworth SL, Clark JJ, Kohl A, Donald CL. Inhibition of type I interferon induction and signalling by mosquito-borne flaviviruses. Cell Microbiol 2017; 19. [PMID: 28273394 PMCID: PMC5413821 DOI: 10.1111/cmi.12737] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 02/20/2017] [Accepted: 03/06/2017] [Indexed: 12/21/2022]
Abstract
The Flavivirus genus (Flaviviridae family) contains a number of important human pathogens, including dengue and Zika viruses, which have the potential to cause severe disease. In order to efficiently establish a productive infection in mammalian cells, flaviviruses have developed key strategies to counteract host immune defences, including the type I interferon response. They employ different mechanisms to control interferon signal transduction and effector pathways, and key research generated over the past couple of decades has uncovered new insights into their abilities to actively decrease interferon antiviral activity. Given the lack of antivirals or prophylactic treatments for many flaviviral infections, it is important to fully understand how these viruses affect cellular processes to influence pathogenesis and disease outcome. This review will discuss the strategies mosquito-borne flaviviruses have evolved to antagonise type I interferon mediated immune responses.
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Affiliation(s)
| | - Jordan J Clark
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, UK
| | - Alain Kohl
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, UK
| | - Claire L Donald
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, UK
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17
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Donald CL, Brennan B, Cumberworth SL, Rezelj VV, Clark JJ, Cordeiro MT, Freitas de Oliveira França R, Pena LJ, Wilkie GS, Da Silva Filipe A, Davis C, Hughes J, Varjak M, Selinger M, Zuvanov L, Owsianka AM, Patel AH, McLauchlan J, Lindenbach BD, Fall G, Sall AA, Biek R, Rehwinkel J, Schnettler E, Kohl A. Full Genome Sequence and sfRNA Interferon Antagonist Activity of Zika Virus from Recife, Brazil. PLoS Negl Trop Dis 2016; 10:e0005048. [PMID: 27706161 PMCID: PMC5051680 DOI: 10.1371/journal.pntd.0005048] [Citation(s) in RCA: 155] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Accepted: 09/19/2016] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND The outbreak of Zika virus (ZIKV) in the Americas has transformed a previously obscure mosquito-transmitted arbovirus of the Flaviviridae family into a major public health concern. Little is currently known about the evolution and biology of ZIKV and the factors that contribute to the associated pathogenesis. Determining genomic sequences of clinical viral isolates and characterization of elements within these are an important prerequisite to advance our understanding of viral replicative processes and virus-host interactions. METHODOLOGY/PRINCIPAL FINDINGS We obtained a ZIKV isolate from a patient who presented with classical ZIKV-associated symptoms, and used high throughput sequencing and other molecular biology approaches to determine its full genome sequence, including non-coding regions. Genome regions were characterized and compared to the sequences of other isolates where available. Furthermore, we identified a subgenomic flavivirus RNA (sfRNA) in ZIKV-infected cells that has antagonist activity against RIG-I induced type I interferon induction, with a lesser effect on MDA-5 mediated action. CONCLUSIONS/SIGNIFICANCE The full-length genome sequence including non-coding regions of a South American ZIKV isolate from a patient with classical symptoms will support efforts to develop genetic tools for this virus. Detection of sfRNA that counteracts interferon responses is likely to be important for further understanding of pathogenesis and virus-host interactions.
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Affiliation(s)
- Claire L. Donald
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Benjamin Brennan
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | | | - Veronica V. Rezelj
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Jordan J. Clark
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Marli T. Cordeiro
- Fundação Oswaldo Cruz-PE/Centro de Pesquisas Aggeu Magalhães, Departamento de Virologia, Campus da UFPE-Cidade Universitária, Recife/PE, Brasil
| | - Rafael Freitas de Oliveira França
- Fundação Oswaldo Cruz-PE/Centro de Pesquisas Aggeu Magalhães, Departamento de Virologia, Campus da UFPE-Cidade Universitária, Recife/PE, Brasil
| | - Lindomar J. Pena
- Fundação Oswaldo Cruz-PE/Centro de Pesquisas Aggeu Magalhães, Departamento de Virologia, Campus da UFPE-Cidade Universitária, Recife/PE, Brasil
| | - Gavin S. Wilkie
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Ana Da Silva Filipe
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Christopher Davis
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Joseph Hughes
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Margus Varjak
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Martin Selinger
- Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic
- Institute of Parasitology, Biology Centre of the Academy of Sciences of the Czech Republic, České Budějovice, Czech Republic
| | - Luíza Zuvanov
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Ania M. Owsianka
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Arvind H. Patel
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - John McLauchlan
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Brett D. Lindenbach
- Department of Microbial Pathogenesis, Yale University, New Haven, Connecticut, United States of America
| | - Gamou Fall
- Pole de Virologie, Unité des arbovirus et virus des fièvres hémorragiques, Institut Pasteur de Dakar, Dakar, Senegal
| | - Amadou A. Sall
- Pole de Virologie, Unité des arbovirus et virus des fièvres hémorragiques, Institut Pasteur de Dakar, Dakar, Senegal
| | - Roman Biek
- Boyd Orr Centre for Population and Ecosystem Health, Institute of Biodiversity, Animal Health and Comparative Medicine, College of Medical Veterinary and Life Sciences, University of Glasgow, Glasgow, Scotland, United Kingdom
| | - Jan Rehwinkel
- Medical Research Council Human Immunology Unit, Weatherall Institute of Molecular Medicine and Radcliffe Department of Medicine, University of Oxford, Oxford, England, United Kingdom
| | - Esther Schnettler
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
| | - Alain Kohl
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Scotland, United Kingdom
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Ahmed A, Smith RD, Clark JJ, Dunbar JB, Carlson HA. Recent improvements to Binding MOAD: a resource for protein-ligand binding affinities and structures. Nucleic Acids Res 2014; 43:D465-9. [PMID: 25378330 PMCID: PMC4383918 DOI: 10.1093/nar/gku1088] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
For over 10 years, Binding MOAD (Mother of All Databases; http://www.BindingMOAD.org) has been one of the largest resources for high-quality protein-ligand complexes and associated binding affinity data. Binding MOAD has grown at the rate of 1994 complexes per year, on average. Currently, it contains 23,269 complexes and 8156 binding affinities. Our annual updates curate the data using a semi-automated literature search of the references cited within the PDB file, and we have recently upgraded our website and added new features and functionalities to better serve Binding MOAD users. In order to eliminate the legacy application server of the old platform and to accommodate new changes, the website has been completely rewritten in the LAMP (Linux, Apache, MySQL and PHP) environment. The improved user interface incorporates current third-party plugins for better visualization of protein and ligand molecules, and it provides features like sorting, filtering and filtered downloads. In addition to the field-based searching, Binding MOAD now can be searched by structural queries based on the ligand. In order to remove redundancy, Binding MOAD records are clustered in different families based on 90% sequence identity. The new Binding MOAD, with the upgraded platform, features and functionalities, is now equipped to better serve its users.
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Affiliation(s)
- Aqeel Ahmed
- Department of Medicinal Chemistry, University of Michigan, 428 Church St, Ann Arbor, MI 48109-1065, USA
| | - Richard D Smith
- Department of Medicinal Chemistry, University of Michigan, 428 Church St, Ann Arbor, MI 48109-1065, USA
| | - Jordan J Clark
- Department of Medicinal Chemistry, University of Michigan, 428 Church St, Ann Arbor, MI 48109-1065, USA
| | - James B Dunbar
- Department of Medicinal Chemistry, University of Michigan, 428 Church St, Ann Arbor, MI 48109-1065, USA
| | - Heather A Carlson
- Department of Medicinal Chemistry, University of Michigan, 428 Church St, Ann Arbor, MI 48109-1065, USA
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Abstract
PURPOSE To describe a unique single incision modification of the Nuss procedure and compare results to a historical cohort of standard Nuss patients. METHODS A retrospective review of 32 patients who underwent the Nuss procedure at a tertiary academic medical center over a 4-year period (2007-2010). Fourteen consecutive patients who underwent the modified technique (MN) were compared to the previous 18 patients who underwent the standard procedure (SN). We evaluated for differences between group demographics, operative variables, and postoperative course. The major technical modification was performing the entire procedure through a single right lateral thoracic incision. The dissection for bar placement on the left side of the chest was performed in a subcutaneous, pre-sternal and pre-muscular plane from the right-sided incision. The bar was placed from the right side and positioned in the standard fashion. Thoracoscopy was preformed via the same incision using a 45-degree thoracoscope and multiple trocar positions. The bar was anchored to the chest wall with a unilateral bar stabilizer. RESULTS There were no statistically significant differences between the study groups in any of the patient, operative or postoperative care parameters. CONCLUSION The single incision modified Nuss procedure is as safe and efficacious as the standard technique.
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Affiliation(s)
- J J Clark
- Hawaii Residency Program, Honolulu, USA.
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20
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Feng L, Wu C, Tam L, Sutherland AJ, Clark JJ, Rosenfeld PE. Dioxin furan blood lipid and attic dust concentrations in populations living near four wood treatment facilities in the United States. J Environ Health 2011; 73:34-46. [PMID: 21306093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
To evaluate historical exposure from wood treatment facilities, attic dust samples were collected from residential structures and blood samples were collected from current and past residents of four communities surrounding wood treatment facilities throughout the United States. The pattern of dioxin/furan congeners detected in both attic dust and blood samples was found to be consistent with exposure to contaminants generated during the wood treatment process. Levels in the U.S. population of 2,3,7,8-tetrachloro-p-dibenzodioxin toxic equivalents (2,3,7,8-TCDD TEQs) for all 17 carcinogenic dioxin/furan congeners as well as octa-chlorinated dibenzo-p-dioxin (OCDD) adjusted to its TEQ value and 1,2,3,4,6,7,8-hepta-chlorinated dibenzo-p-dioxin (1,2,3,4,6,7,8-HpCDD) adjusted to its TEQ value were compared to the TEQ levels in the combined data set for all four communities and in the data sets for each individual community. TEQ concentrations in these communities were found to be significantly greater than in the general U.S. population. The levels of dioxins in attic dust were compared to the U.S. Environmental Protection Agency's regional screening levels and found to far exceed the levels that are regarded as safe for the general population. These findings reveal that a very significant potential for contaminant-related health risks exists in communities surrounding wood treatment facilities.
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Affiliation(s)
- L Feng
- Soil Water Air Protection Enterprise (SWAPE), Santa Monica, CA 90405, USA.
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21
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Guion SG, Clark JJ, Harada T, Wayland RP. Factors affecting stress placement for English nonwords include syllabic structure, lexical class, and stress patterns of phonologically similar words. Lang Speech 2003; 46:403-427. [PMID: 15198114 DOI: 10.1177/00238309030460040301] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Seventeen native English speakers participated in an investigation of language users' knowledge of English main stress patterns. First, they produced 40 two-syllable nonwords of varying syllabic structure as nouns and verbs. Second, they indicated their preference for first or second syllable stress of the same words in a perception task. Finally, they indicated words they considered to be phonologically similar to the nonwords. Analyses of variance on the production and perception data indicated that both syllabic structure and lexical class (noun or verb) had an effect on main stress assignment. In logistic regression analyses on the production and perception responses. predictions of stress placement made by (1) syllable structure, (2) lexical class, and (3) stress patterns of phonologically similar words all contributed significantly and uniquely to the prediction of main stress assignment. The results indicate that phonological theories of English word stress need to allow for multiple, competing, probabilistic factors in accounts of main stress placement including syllabic structure (most notably vowel length), lexical class, and stress patterns of phonologically similar words.
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Affiliation(s)
- Susan G Guion
- Department of Linguistics, University of Oregon, Eugene 97403-1290, USA.
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22
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Sawyer MG, Arney FM, Baghurst PA, Clark JJ, Graetz BW, Kosky RJ, Nurcombe B, Patton GC, Prior MR, Raphael B, Rey JM, Whaites LC, Zubrick SR. The mental health of young people in Australia: key findings from the child and adolescent component of the national survey of mental health and well-being. Aust N Z J Psychiatry 2001; 35:806-14. [PMID: 11990891 DOI: 10.1046/j.1440-1614.2001.00964.x] [Citation(s) in RCA: 364] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To identify the prevalence of three mental disorders (Depressive Disorder, Conduct Disorder and Attention-Deficit/Hyperactivity Disorder), the prevalence of mental health problems, the health-related quality of life of those with problems, and patterns of service utilisation of those with and without mental health problems, among 4-17-year-olds in Australia. To identify rates of health-risk behaviours among adolescents with mental health problems. METHOD The mental disorders were assessed using the parent-version of the Diagnostic Interview Schedule for Children Version IV. Parents completed the Child Behaviour Checklist to identify mental health problems and standard questionnaires to assess health-related quality of life and service use. The Youth Risk Behaviour Questionnaire completed by adolescents was employed to identify health-risk behaviours. RESULTS Fourteen percent of children and adolescents were identified as having mental health problems. Many of those with mental health problems had problems in other areas of their lives and were at increased risk for suicidal behaviour. Only 25% of those with mental health problems had attended a professional service during the six months prior to the survey. CONCLUSION Child and adolescent mental health problems are an important public health problem in Australia. The appropriate balance between funding provided for clinical interventions focusing on individual children and families and funding for interventions that focus on populations, requires careful study. The latter are an essential component of any strategy to reduce mental health problems as the high prevalence of problems makes it unlikely that individual care will ever be available for all those needing help. Clinical and population health interventions must take into account the comorbid problems experienced by children with mental disorders.
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Affiliation(s)
- M G Sawyer
- Research and Evaluation Unit, Women's and Children's Hospital, North Adelaide, South Australia, Australia.
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Abstract
OBJECTIVES To examine the prevalence and factors associated with depression in Australian adolescents. DESIGN A representative, multistage probability sample of Australian households conducted in 1998 (part of the National Survey of Mental Health and Well-being). Adolescents completed self-report questionnaires and parents were interviewed using a lay-administered, structured psychiatric interview and several questionnaires. PARTICIPANTS 1,490 adolescents aged 13-17 years and their parent or main caregiver. MAIN OUTCOME MEASURES Prevalence of depression in adolescents, as reported by parents and by adolescents themselves; demographic factors; health-risk behaviours; and rate of use of support services. RESULTS Of the 1,490 adolescents originally sampled, 150 (10%) did not complete responses to questions on depression and were excluded from the analysis. Seventy of the remaining 1340 adolescents (5.2%; 95% CI, 4.0%-6.4%) met criteria for self-reported depression. Agreement between parent- and adolescent-reported depression was poor (kappa=0.27). Adolescent-reported depression was associated with increased suicide plans (odds ratio [OR], 2.83; 95% CI, 1.19-6.70) and attempts (OR, 9.05; 95% CI, 3.49-23.50) in the previous year, use of marijuana 10 or more times in the previous month (OR, 2.88; 95% CI, 1.25-6.64), having conduct disorder (OR, 4.09; 95% CI, 1.23-13.63) and use of school support services (OR, 4.71; 95% CI, 1.82-12.22). Those who used any kind of support service (24/70; 34%) used a mean of 2.9 services (mode, 2; range, 1-5). Three per cent (2/70) of depressed adolescents had been treated with antidepressants. CONCLUSIONS Depressed adolescents exhibit higher rates of health-risk behaviours and psychosocial impairment than non-depressed adolescents, but only a small number receive appropriate treatment. Staff working in school-based services should be trained to identify adolescents with depression and facilitate referral for treatment.
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Affiliation(s)
- J M Rey
- Department of Psychological Medicine, University of Sydney, NSW, Australia.
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Howard PB, Clark JJ, Rayens MK, Hines-Martin V, Weaver P, Littrell R. Consumer satisfaction with services in a regional psychiatric hospital: a collaborative research project in Kentucky. Arch Psychiatr Nurs 2001; 15:10-23. [PMID: 11172235 DOI: 10.1053/apnu.2001.20577] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Consumer satisfaction with mental health services is a dimension of outcome. This report is on a university and state mental health department research project that involved development of the Kentucky Consumer Satisfaction Instrument (KY-CSI) and a retrospective, cross-sectional study designed to measure consumer satisfaction with services at a regional psychiatric hospital. Triangulation of methods guided the survey of participants (N = 189) near discharge from the hospital during a 6-month period. Research associates, who were former consumers of mental health services, collected data during face-to-face interviews. Most participants were unemployed White men. Factor analysis indicated the 19-item instrument was unidimensional; Cronbach's alpha was 0.90. Multiple regression indicated predictors of satisfaction were levels of education and diagnosis. As education increased, satisfaction decreased; participants with a diagnosis of bipolar disorder tended to be more satisfied than those with other diagnoses. Analysis of qualitative data combined with standardized summary of KY-CSI items indicated participants were most satisfied with opportunities to talk with other patients and least satisfied about lack of involvement of people with whom they lived in discharge planning. Study findings guided recommendations for quality of care and additional studies at other hospital sites.
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Kobayashi K, Healey RM, Sah RL, Clark JJ, Tu BP, Goomer RS, Akeson WH, Moriya H, Amiel D. Novel method for the quantitative assessment of cell migration: a study on the motility of rabbit anterior cruciate (ACL) and medial collateral ligament (MCL) cells. Tissue Eng 2000; 6:29-38. [PMID: 10941198 DOI: 10.1089/107632700320865] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
A novel method of quantitating cell migration has been proposed for the potential utilization of tissue engineered scaffolds. Applying Alt's conservation law to describe the motion of first passage ACL and MCL cells, we have developed a quantitative method to assess innate differences in the motility of cells from these two ligamentous tissues. In this study, first passage ACL and MCL cells were cultured from four mature New Zealand white rabbits. One side of the cell monolayer was scraped completely away to create a wound model. The cell moved into the cell-free area, and cell density profiles were analyzed at 6 h and 12 h. Values of the random motility coefficient (mu) were then estimated by curve fitting the 6 h and 12 h data to a mathematical model, derived from the conservation law of cell flux. During 6 h of incubation in medium supplemented with 1% FBS, MCL cells (mu(MCL) = 4.63 +/- 0.65 X 10(-6) mm(2)/sec) were significantly (p < 0.05) more mobile than ACL cells (mu(ACL) = 2.51 +/- 0.31 X 10(-6) mm(2)/sec). At 12 h, the MCL cells also appeared to move faster (mu(ACL) = 4.39 +/- 0.63 X 10(-6) mm(2)/sec, mu(MCL) = 6.59 +/- 1.47 X 10(-6) mm(2)/sec), but the difference was not statistically significant (p = 0.18). Exposure of the cells to growth factors PDGF-BB or bFGF for 6 h had no significant effect on the migration of the ACL and MCL cells. However, exposure of the ACL cells (p < 0.05) and the MCL cells (p = 0.19) to 1 ng/mL of PDGFBB for 12 h enhanced their migration. Incubation with a high concentration (100 ng/mL) of PDGF-BB or bFGF at concentrations tested (1 or 100 ng/mL) for 12 h, produced little or no migratory stimulation on these ligament cells. Our findings support the previous qualitative observations made by numerous investigators. The novel methodology developed in this study may provide a basis for tissue engineering, and the results may be applied to tissue reconstruction techniques of the knee ligaments.
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Affiliation(s)
- K Kobayashi
- Department of Orthopaedics, University of California-San Diego, La Jolla, California 92093-0630, USA
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26
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Abstract
This article presents a model of case management with rural clients entering drug and alcohol treatment. As part of a larger treatment protocol called Structured Behavioral Outpatient Rural Therapy, behavioral contracting is combined with strengths perspective case management to help rural clients motivate themselves to engage and complete drug and alcohol treatment. This combined approach is designed to continually communicate and teach an "A-B-C" cognitive-behavioral approach to problem-solving and change. While not a panacea for addressing the myriad problems facing clients with drug use problems, such an approach promises to improve "treatment as usual" formats, which often ignore the formidable obstacles to human change experienced by rural clients and clinicians.
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Affiliation(s)
- J J Clark
- Center on Drug and Alcohol Research, University of Kentucky, Lexington 40506-0350, USA.
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27
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Abstract
The effective management of risk in clinical practice includes steps to limit harm to clients resulting from ethical violations or professional misconduct. Boundary problems constitute some of the most damaging ethical violations. The authors propose an active use of clinical supervision to anticipate and head off possible ethical violations by intervening when signs of boundary problems appear. The authors encourage a facilitative, Socratic method, rather than directive approaches, to help supervisees maximize their learning about ethical complexities. Building on the idea of a slippery slope, in which seemingly insignificant acts can lead to unethical patterns of behavior, the authors discuss ten cues to potential boundary problems, including strong feelings about a client; extended sessions with clients; gift giving between clinician and client; loans, barter, and sale of goods; clinician self-disclosures; and touching and sex. The authors outline supervisory interventions to be made when the cues are detected.
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Affiliation(s)
- R Walker
- Department of Psychiatry at the University of Kentucky College of Mediccine, Center on Drug and Alcohol Research, Lexington 40506-0350, USA.
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29
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Abstract
Recent theories of visual attention, such as the oculomotor readiness theory of Klein (1980) (Does oculomotor readiness mediate cognitive control of the visual attention. In: R. Nickerson, Attention and performance, Hillsdale: Erlbaum), the premotor theory of Rizzolati (1983) (Mechanisms of selective attention in mammals. In: J.P. Ewart, R.R. Capranica, D.J. Ingle, Advances in vertebrate Neuroethology (pp. 261-297). New York: Plenum) and the sequential attention theory of Henderson (1992) (Visual attention and eye movement control during reading and scene perception. In K. Rayner, Eye movements and visual cognition (260-283). New York: Springer-Verlag), propose a link between shifts in spatial attention and the generation of saccadic eye movements. In this paper we show that a winner-take-all model of spatial attention, combined with a simple model for the link between attention and eye movements, can account for the variation in saccadic latency observed in many oculomotor phenomena. These phenomena include the gap effect (Saslow M.G. (1967). Effects of components of displacement-step stimuli upon latency for saccadic eye movement. Journal of the Optical Society of America, 57, 1024-1029), the effect of target jumps on saccadic latency (Becker W. & Jurgens R. (1979). An analysis of the saccadic system by means of double step stimuli. Vision Research, 19, 967-983), the increase of saccadic latency as target eccentricity drops (Kalesnykas R.P. & Hallett P.E. (1994). Retinal eccentricity and the latency of eye saccades. Vision Research, 34, 517-531), and the modulation of saccadic accuracy using target predictability and saccadic latency (Coëffé C. & O'Regan J.K. (1987). Reducing the influence of non-target stimuli on saccade accuracy: predictability and latency effects. Vision Research, 27 (2), 227-240).
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Affiliation(s)
- J J Clark
- Department of Electrical Engineering, McGill University, Montreal, Quebec, Canada.
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Abstract
The optimal viewing position phenomenon discovered by (O'Regan, J. K., Lévy-Schoen, A., Pynte, J., Brugaillère, B. (1984). Convenient fixation location within isolated words of different length and structure. Journal of Experimental Psychology: Human Perception and performance. 10 (2), 250-257) is characterized by a minimization of gaze duration on a word and maximization of word recognition rates when the eye fixates a word near its center. Subsequent studies (Holmes, V. M., & O'Regan, J. K. (1987). Decomposing french words. In J. K. O'Regan, & A. Lévy-Schoen, Eye movements: from physiology to cognition, North-Holland, Amsterdam, 459-466; O'Regan, J. K., & Lévy-Schoen, A. (1987). Eye movement strategy and tactics in word recognition and reading. In M. Coltheart, Attention and performance XII: the psychology of reading, Erlbaum, Hillsdale N.J., 363-383) have shown that lexical structure can affect the location of the optimal viewing position. In this paper we show that the optimal viewing position is near to the position which minimizes word ambiguity arising from incomplete recognition of the letters in the word. This conclusion is supported by a statistical analysis based on inter-letter correlations in English and French word corpuses.
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Affiliation(s)
- J J Clark
- Department of Electrical Engineering, McGill University, Montréal, Que., Canada.
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Ensign J, Scherman A, Clark JJ. The relationship of family structure and conflict to levels of intimacy and parental attachment in college students. Adolescence 1998; 33:575-82. [PMID: 9831874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Randomly selected college juniors and seniors completed questionnaires concerning marital conflict, parental attachment, and attitudes about love and sex. Results indicated that intimacy was negatively correlated with parental conflict and divorce. Divorce and higher levels of conflict were associated with lower levels of intimacy in students' romantic relationships.
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Affiliation(s)
- J Ensign
- University of Oklahoma, Norman 73019, USA
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Abstract
OBJECTIVE To evaluate the effectiveness of the Rochester Social Problem Solving Program to reduce emotional and behavioural problems amongst primary school children. METHODOLOGY Children in years 3 and 4 at primary school were assessed prior to receiving the program, immediately after the program and 1 year after the program. At each assessment, the functioning of the children who received the program was compared to the functioning of children enrolled in years 3 and 4 at a comparable school who did not receive the program. RESULTS The program improved the ability of children to cope with potentially difficult social situations. However, the program did not reduce the prevalence of teacher-reported or mother-reported childhood emotional and behavioural problems. CONCLUSIONS School-based social skills programs may be more effective in reducing childhood emotional and behavioural problems if they include components which focus specifically on childhood behaviour problems as well as components focusing on social skills and peer relationships.
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Affiliation(s)
- M G Sawyer
- Department of Psychiatry, University of Adelaide, Australia
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Haire MF, Clark JJ, Jones ME, Hendil KB, Schwartz LM, Mykles DL. The multicatalytic proteinase (proteasome) of the hawkmoth, Manduca sexta: catalytic properties and immunological comparison with the lobster enzyme complex. Arch Biochem Biophys 1995; 318:15-24. [PMID: 7726556 DOI: 10.1006/abbi.1995.1198] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The proteasome plays a central role in ubiquitin-dependent and -independent proteolysis in eukaryotic cells. The hawkmoth proteasome was purified from larval body wall and characterized with respect to substrate specificity, sensitivity to protease inhibitors, and cross-reactivity with monoclonal antibodies (mAbs) raised against human placenta proteasome. Leupeptin selectively inhibited the trypsin-like activity (T-L) and N-ethylmaleimide inhibited both T-L and chymotrypsin-like activities, whereas 0.02% sodium dodecyl sulfate stimulated the peptidylglutamyl peptide hydrolase, branched-chain amino acid preferring, and caseinolytic activities 20-, 18-, and 3.8-fold, respectively. All four peptidase activities were inhibited by 3,4-dichloroisocoumarin. One-dimensional immunoblot analysis showed that the level and subunit composition of the proteasome varied between tissues. The relative levels of proteasome were high in intersegmental muscle and ovary, lower in Malpighian tubule, male accessory gland, and ventral nerve cord, and lowest in flight muscle and fat body. The tissues differed in the relative amount of a 41-kDa doublet; a 22-kDa subunit was present only in the male accessory gland. Two-dimensional polyacrylamide gel electrophoresis showed that the hawkmoth proteasome contained at least 26 subunits, compared with 28 subunits in lobster. Immunological analysis using four subunit-specific mAbs identified the putative homologs of the human zeta, C2, C3, and C8 alpha-type subunits in the hawkmoth and lobster enzymes. Two of the four mAbs reacted with three or more of the hawkmoth subunits and three of the mAbs reacted with two or more of the lobster subunits. In addition, two other mAbs that recognize epitopes shared by a number of alpha-type subunits indicated that at least 15 (lobster) or 16 (hawkmoth) subunits were alpha-type. These results suggest that much of the subunit complexity of the arthropod proteasomes is a consequence of extensive post-translational modifications.
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Affiliation(s)
- M F Haire
- Department of Biology, Colorado State University, Fort Collins 80523, USA
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Abstract
STUDY OBJECTIVES To determine whether criteria based dispatch (CBD) improved the efficiency of the emergency medical services system. DESIGN A before and after design was used to measure effects of CBD. Data were reviewed from medical reports from January 1986 through June 1992. SETTING King County, Washington, excluding the city of Seattle. PARTICIPANTS Residents who called 911 to report a medical emergency. INTERVENTIONS Emergency medical dispatching (EMD), basic life support (BLS), and advanced life support (ALS). RESULTS Findings show a decrease in ALS responses for two tracer conditions that medical control physicians determined not require ALS intervention. The percentage of febrile seizures in which paramedics responded decreased from 41% to 21% (P < .001). The percentage of cerebrovascular accidents in which paramedics responded decreased from 41% to 28% (P < .001). CBD led to a decrease, from 4.7% to 3.8% (P < .001), in frequency of requests by BLS units for dispatch of ALS units. There was no increase in the time required to dispatch each call. CONCLUSION CBD increased the efficiency of the EMS system by significantly reducing ALS responses to incidents not requiring ALS intervention and reducing requests by BLS units for dispatch of ALS units while maintaining a consistent time from receipt of call to dispatch.
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Affiliation(s)
- L L Culley
- King County Emergency Medical Services Division, Seattle-King County Department of Public Health
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Abstract
STUDY OBJECTIVE To identify and determine the rates of delivery and performance of telephone CPR in noncardiac arrest incidents. DESIGN We studied prospectively all out-of-hospital cardiac arrest and potential cardiac arrest incidents from July 1 through October 31, 1992. SETTING King County, Washington, excluding the city of Seattle. PARTICIPANTS Persons with cardiac arrest or an initial complaint resembling cardiac arrest who received emergency medical services. INTERVENTIONS Dispatcher-assisted telephone CPR. MEASUREMENTS AND MAIN RESULTS Three hundred fifty-eight incidents of cardiac arrest, respiratory arrest, and potential cardiac arrest were reviewed. Telephone CPR was offered appropriately in 61 of 87 cases (70%) and inappropriately in eight of 154 potential cardiac arrests (5.2%) (95% confidence interval, 1.7%, 8.7%). Ventilation instructions were performed appropriately in 52 of 87 cases (60%) and inappropriately in three of 154 potential cardiac arrests (1.9%) (95% confidence interval, 0%, 4.1%). Chest compressions were performed appropriately in 26 of 68 cardiac arrests (38.2%) and inappropriately in two of 173 potential cardiac arrests (1.2%) (95% confidence interval, 0%, 2.8%). CONCLUSION We found a low rate of performance of telephone CPR in King County for incidents resembling cardiac arrest. This finding suggests that the protocols designed for dispatcher-assisted telephone CPR effectively screen out those incidents that may initially resemble cardiac arrest.
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Affiliation(s)
- J J Clark
- Center for Evaluation of Emergency Medical Services, University of Washington, Seattle
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Abstract
This study compared the prevalence of emotional and behavioural problems experienced by 10-11 year old and 14-15 year old children living in single-parent and two-parent families in South Australia. The 10-11 year old male children living in single-parent families were found to have significantly more emotional and behavioural problems than 10-11 year old male children living in two-parent families. In particular, the younger male children living in single-parent families experienced more externalizing behaviour problems than younger male children living in two-parent families. It is suggested that paediatricians and general practitioners need to be aware of children who are at particular risk for developing emotional and behavioural problems, and the approaches which may be employed to provide help.
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Affiliation(s)
- J J Clark
- Evaluation Unit, Adelaide Children's Hospital, Australia
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Abstract
Paediatricians are often asked to assess children with emotional and behavioural problems and are faced with the dilemma that reports about the children's behaviour obtained from the children, and from their parents and teachers, may differ. This study compares the number of childhood emotional and behavioural problems reported by children living in the community, with the number of problems reported by their parents and teachers. When describing both internalizing and externalizing problems, the children consistently reported that they had more problems than were reported by either their parents or teachers. This pattern was particularly evident with reports from older female children who reported many more internalizing problems than were reported by their parents and teachers. Possible reasons for the differences between reports from children and the other informants are discussed.
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Affiliation(s)
- M G Sawyer
- Evaluation Unit, Adelaide Children's Hospital, Australia
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Abstract
STUDY OBJECTIVE To discover the frequency of agonal respirations in cardiac arrest calls, the ways callers describe them, and discharge rates associated with agonal respirations. DESIGN We reviewed taped recordings of calls reporting cardiac arrests and emergency medical technician and paramedic incident reports for 1991. Arrests after arrival of emergency medical services were excluded. SETTING King County, Washington, excluding the city of Seattle. PARTICIPANTS Four hundred forty-five persons with out-of-hospital cardiac arrests receiving emergency medical services. INTERVENTIONS Telephone CPR, emergency medical technicians-defibrillation, and advanced life support by paramedics. MEASUREMENTS AND MAIN RESULTS Any attempts at breathing described by callers were identified, as well as whether agonal respirations could be heard by dispatcher, emergency medical technicians, or paramedics. Agonal respirations occurred in 40% of 445 out-of-hospital cardiac arrests. Callers described agonal breathing in a variety of ways. Agonal respirations were present in 46% of arrests caused by cardiac etiology compared with 32% in other etiologies (P < .01). Fifty-five percent of witnessed arrests had agonal activity compared with 16% of unwitnessed arrests (P < .001). Agonal respirations occurred in 56% of arrests with a rhythm of ventricular fibrillation compared with 34% of cases with a nonventricular fibrillation rhythm (P < .001). Twenty-seven percent of patients with agonal respirations were discharged alive compared with 9% without them (P < .001). CONCLUSION There is a high incidence of agonal activity associated with out-of-hospital cardiac arrest. Presence of agonal respirations is associated with increased survival. These findings have implications for public CPR training programs and emergency dispatcher telephone CPR programs.
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Affiliation(s)
- J J Clark
- Center for Evaluation of Emergency Medical Services, Seattle-King County Department of Public Health
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Abstract
STUDY OBJECTIVES To determine the rate of bystander CPR before and after implementation of a telephone CPR program in King County; to determine the reasons for dispatcher delays in identifying patients in cardiac arrest in delivering CPR instructions over the telephone; and to suggest time standards for delivery of the telephone CPR message. DESIGN An ongoing cardiac arrest surveillance system to calculate the annual bystander CPR rates from 1976 through 1988. Two hundred sixty-seven taped recordings of calls reporting cardiac arrests to nine emergency dispatch centers during 1988 were reviewed and timed. SETTING King County, Washington, excluding the city of Seattle. PARTICIPANTS Two hundred sixty-seven persons with out-of-hospital cardiac arrests receiving emergency medical services. Arrests in doctors' offices, clinics, or nursing homes were excluded. INTERVENTIONS Dispatcher-assisted telephone CPR. MEASUREMENTS AND MAIN RESULTS The rate of bystander CPR increased from 32% (1976 through 1981) to 54% (1982 through 1988) after implementation of the dispatcher-assisted telephone CPR program, although an increase in survival could not be demonstrated. The median time for dispatchers to identify the problem was 75 seconds; to deliver the early protocols, 19 seconds; to deliver the ventilation instructions, 25 seconds; and to deliver compression instructions, 30 seconds. The total time to deliver the entire CPR message was 2.3 minutes. The most frequent cause for delay was unnecessary questions (57%) with questions about patient age asked most frequently (32%). Other causes included the caller not being near the patient (29%) and deviations from protocol (22%). CONCLUSION In a metropolitan emergency medical services system, a dispatcher-assisted telephone CPR program was associated with an increase in bystander CPR. Delays in proper delivery of telephone CPR can be minimized through training.
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Affiliation(s)
- L L Culley
- Center for Evaluation of Emergency Medical Services, Emergency Medical Services Division, Seattle, Washington 98104
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Clark JJ, Ilgen TL, Haire MF, Mykles DL. Differential effects of oleic acid, sodium dodecyl sulfate, and protease inhibitors on the endopeptidase activities of the lobster multicatalytic proteinase. Comp Biochem Physiol B 1991; 99:413-7. [PMID: 1764921 DOI: 10.1016/0305-0491(91)90063-j] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
1. Lobster muscles contain a latent multicatalytic proteinase; heating at 60 degrees C for 1-2 min converts the latent form to a heat-activated form with enhanced proteolytic activity. Both forms have three endopeptidase activities, which are classified as the trypsin-like, chymotrypsin-like, and peptidylglutamylpeptide bond hydrolyzing activities. 2. Sulfhydryl reagents (mersalyl acid, N-ethylmaleimide, hemin, iodoacetamide, and p-chloromercurisulfonic acid), benzamidine, and chloromethyl ketones inhibited all three activities of the heat-activated form. Leupeptin and antipain inhibited only the trypsin-like activity, while the chymotrypsin-like activity was the most sensitive to diisopropyl fluorophosphate, phenylmethanesulfonyl fluoride, aprotinin, and soybean trypsin inhibitor. Pepstatin and L-trans-epoxysuccinylpeptides had little effect on the peptidase activities. 3. Sodium dodecyl sulfate and oleic acid preferentially activated the peptidylglutamyl-peptide hydrolyzing activity of the latent form, whereas N-ethylmaleimide stimulated both the trypsin-like and peptidylglutamyl-peptide hydrolases. These results suggest that the lobster enzyme is an atypical serine proteinase.
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Affiliation(s)
- J J Clark
- Department of Biology, Colorado State University, Fort Collins 80523
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Viswanathan R, Clark JJ, Viswanathan K. Physicians' and the public's attitudes on communication about death. Arch Intern Med 1986; 146:2029-33. [PMID: 3767549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
We studied the preferences of physicians and the public as to how physicians should inform a family of a patient's unexpected death. When the family had to be reached by telephone, 72% of our 150 physician-respondents preferred telling the family that the patient was critically ill and asking the family to come to the hospital immediately (critical notification [CN]); 25% of the physicians preferred announcing the death over the telephone (death notification [DN]). When the news had to be announced in person, 58% of physicians preferred immediately announcing it (IA), and 33% preferred gradual announcement (GA). A Gallup poll commissioned by us showed that 64% of the adult population in the United States preferred CN, 26% DN, 79% IA, and 17% GA; CN and IA were preferred in all the demographic subgroups examined. We discuss our findings, the reasons for them, and their ethical and practical implications.
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Abstract
Twenty-four patients who underwent more than one kidney transplant were interviewed to assess their psychosocial adaptation. Of these 24, we found 15 patients with a functioning kidney and 9 patients with a nonfunctioning transplant who were back on hemodialysis. In both groups, approximately 50% of the patients had life satisfaction ratings of "good" and "very good." The groups differed in two respects. Those with a functioning kidney had a higher employment rate and a better sexual functioning than the group on dialysis. We found many similarities in all other scored parameters (optimism, object relationships, coping devices, psychologic functioning). Denial was commonly used by most of the patients, but the group of patients who scored "good" and "very good" on life satisfaction more frequently utilized other coping devices, such as altruism, "feeling chosen," inner control, and activity than patients with "fair" or "poor" life satisfaction.
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Abstract
The patient is a twenty-three-year-old man with end-stage kidney disease who has major conflicts about receiving maintenance hemodialytic treatment. These conflicts stem in part from the patient's hospitalization at the age of seven and the witnessing of heroic medical procedures used in an attempt to treat his father's eventually successful suicide. His unconscious doubts of his manliness result in a pseudoindependent behavior and a pose of hypermasculinity which induce a rejection of passivity and the dependent position necessitated by being a patient on hemodialysis. Rejection of hemodialysis may be a conscious or unconscious suicide attempt. In this patient, it may be a consequence of guilt in relation to his father's death and of other psycho-social factors. Effective treatment for this patient should include allowing him to exercise his independence in as many ways as is possible. Home dialysis and renal transplantation lend themselves to greater feelings of independence and may be preferable to center hemodialysis in this patient. The feelings surrounding the death of his father should be explored with a liaison physician or psychiatrist.
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Levy NB, Clark JJ. Headaches in an angry diabetic patient. Int J Psychiatry Med 1973; 4:323-31. [PMID: 4742688 DOI: 10.2190/ja47-wwvx-g76a-j6p2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A diabetic patient with headaches is interviewed and discussed with respect to his childhood problems in dealing with aggression and separation as well as the significance of his “choice” of symptom. Suggestions are made for the effective management of such a patient.
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