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Messina NL, Germano S, McElroy R, Bonnici R, Grubor-Bauk B, Lynn DJ, McDonald E, Nicholson S, Perrett KP, Pittet LF, Rudraraju R, Stevens NE, Subbarao K, Curtis N. Specific and off-target immune responses following COVID-19 vaccination with ChAdOx1-S and BNT162b2 vaccines-an exploratory sub-study of the BRACE trial. EBioMedicine 2024; 103:105100. [PMID: 38663355 PMCID: PMC11058726 DOI: 10.1016/j.ebiom.2024.105100] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 03/19/2024] [Accepted: 03/20/2024] [Indexed: 05/03/2024] Open
Abstract
BACKGROUND The COVID-19 pandemic led to the rapid development and deployment of several highly effective vaccines against SARS-CoV-2. Recent studies suggest that these vaccines may also have off-target effects on the immune system. We sought to determine and compare the off-target effects of the adenovirus vector ChAdOx1-S (Oxford-AstraZeneca) and modified mRNA BNT162b2 (Pfizer-BioNTech) vaccines on immune responses to unrelated pathogens. METHODS Prospective sub-study within the BRACE trial. Blood samples were collected from 284 healthcare workers before and 28 days after ChAdOx1-S or BNT162b2 vaccination. SARS-CoV-2-specific antibodies were measured using ELISA, and whole blood cytokine responses to specific (SARS-CoV-2) and unrelated pathogen stimulation were measured by multiplex bead array. FINDINGS Both vaccines induced robust SARS-CoV-2 specific antibody and cytokine responses. ChAdOx1-S vaccination increased cytokine responses to heat-killed (HK) Candida albicans and HK Staphylococcus aureus and decreased cytokine responses to HK Escherichia coli and BCG. BNT162b2 vaccination decreased cytokine response to HK E. coli and had variable effects on cytokine responses to BCG and resiquimod (R848). After the second vaccine dose, BNT162b2 recipients had greater specific and off-target cytokine responses than ChAdOx1-S recipients. INTERPRETATION ChAdOx1-S and BNT162b2 vaccines alter cytokine responses to unrelated pathogens, indicative of potential off-target effects. The specific and off-target effects of these vaccines differ in their magnitude and breadth. The clinical relevance of these findings is uncertain and needs further study. FUNDING Bill & Melinda Gates Foundation, National Health and Medical Research Council, Swiss National Science Foundation and the Melbourne Children's. BRACE trial funding is detailed in acknowledgements.
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Affiliation(s)
- Nicole L Messina
- Infectious Diseases Group, Infection, Immunity and Global Health Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia; Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia.
| | - Susie Germano
- Infectious Diseases Group, Infection, Immunity and Global Health Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Rebecca McElroy
- Infectious Diseases Group, Infection, Immunity and Global Health Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Rhian Bonnici
- Infectious Diseases Group, Infection, Immunity and Global Health Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Branka Grubor-Bauk
- Viral Immunology Group, Adelaide Medical School, University of Adelaide and Basil Hetzel Institute for Translational Health Research, Adelaide, SA, Australia
| | - David J Lynn
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia; Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
| | - Ellie McDonald
- Infectious Diseases Group, Infection, Immunity and Global Health Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia
| | - Suellen Nicholson
- Victorian Infectious Diseases Reference Laboratory, The Royal Melbourne Hospital, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Kirsten P Perrett
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia; Population Allergy Group, Murdoch Children's Research Institute, Parkville, VIC, Australia; Department of Allergy and Immunology, The Royal Children's Hospital Melbourne, Parkville, VIC, Australia
| | - Laure F Pittet
- Infectious Diseases Group, Infection, Immunity and Global Health Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia; Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia; Paediatric Infectious Diseases Unit, Geneva University Hospitals and Faculty of Medicine, Geneva, Switzerland
| | - Rajeev Rudraraju
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Natalie E Stevens
- Precision Medicine Theme, South Australian Health and Medical Research Institute, Adelaide, SA, Australia; Flinders Health and Medical Research Institute, Flinders University, Bedford Park, SA, Australia
| | - Kanta Subbarao
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia; WHO Collaborating Centre for Reference and Research on Influenza, Peter Doherty Institute for Infection and Immunity, Elizabeth Street, Melbourne, VIC, Australia
| | - Nigel Curtis
- Infectious Diseases Group, Infection, Immunity and Global Health Theme, Murdoch Children's Research Institute, Parkville, VIC, Australia; Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia; Infectious Diseases, The Royal Children's Hospital Melbourne, Parkville, VIC, Australia
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2
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Vanslambrouck JM, Neil JA, Rudraraju R, Mah S, Tan KS, Groenewegen E, Forbes TA, Karavendzas K, Elliott DA, Porrello ER, Subbarao K, Little MH. Kidney organoids reveal redundancy in viral entry pathways during ACE2-dependent SARS-CoV-2 infection. J Virol 2024; 98:e0180223. [PMID: 38334329 PMCID: PMC10949421 DOI: 10.1128/jvi.01802-23] [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: 11/20/2023] [Accepted: 12/21/2023] [Indexed: 02/10/2024] Open
Abstract
With a high incidence of acute kidney injury among hospitalized COVID-19 patients, considerable attention has been focussed on whether SARS-CoV-2 specifically targets kidney cells to directly impact renal function, or whether renal damage is primarily an indirect outcome. To date, several studies have utilized kidney organoids to understand the pathogenesis of COVID-19, revealing the ability for SARS-CoV-2 to predominantly infect cells of the proximal tubule (PT), with reduced infectivity following administration of soluble ACE2. However, the immaturity of standard human kidney organoids represents a significant hurdle, leaving the preferred SARS-CoV-2 processing pathway, existence of alternate viral receptors, and the effect of common hypertensive medications on the expression of ACE2 in the context of SARS-CoV-2 exposure incompletely understood. Utilizing a novel kidney organoid model with enhanced PT maturity, genetic- and drug-mediated inhibition of viral entry and processing factors confirmed the requirement for ACE2 for SARS-CoV-2 entry but showed that the virus can utilize dual viral spike protein processing pathways downstream of ACE2 receptor binding. These include TMPRSS- and CTSL/CTSB-mediated non-endosomal and endocytic pathways, with TMPRSS10 likely playing a more significant role in the non-endosomal pathway in renal cells than TMPRSS2. Finally, treatment with the antihypertensive ACE inhibitor, lisinopril, showed negligible impact on receptor expression or susceptibility of renal cells to infection. This study represents the first in-depth characterization of viral entry in stem cell-derived human kidney organoids with enhanced PTs, providing deeper insight into the renal implications of the ongoing COVID-19 pandemic. IMPORTANCE Utilizing a human iPSC-derived kidney organoid model with improved proximal tubule (PT) maturity, we identified the mechanism of SARS-CoV-2 entry in renal cells, confirming ACE2 as the sole receptor and revealing redundancy in downstream cell surface TMPRSS- and endocytic Cathepsin-mediated pathways. In addition, these data address the implications of SARS-CoV-2 exposure in the setting of the commonly prescribed ACE-inhibitor, lisinopril, confirming its negligible impact on infection of kidney cells. Taken together, these results provide valuable insight into the mechanism of viral infection in the human kidney.
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Affiliation(s)
- Jessica M. Vanslambrouck
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
- Department of Paediatrics, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
| | - Jessica A. Neil
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Australia
| | - Rajeev Rudraraju
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Australia
| | - Sophia Mah
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
| | - Ker Sin Tan
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
| | - Ella Groenewegen
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
| | - Thomas A. Forbes
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
- Department of Paediatrics, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
- Department of Nephrology, Royal Children’s Hospital, Melbourne, Australia
| | - Katerina Karavendzas
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
| | - David A. Elliott
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
- Department of Paediatrics, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
- Australia Regenerative Medicine Institute, Monash University, Melbourne, Victoria, Australia
| | - Enzo R. Porrello
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
- Melbourne Centre for Cardiovascular Genomics and Regenerative Medicine, The Royal Children’s Hospital, Melbourne, Australia
- Department of Anatomy and Physiology, School of Biomedical Sciences, The University of Melbourne, Melbourne, Australia
| | - Kanta Subbarao
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Australia
- The WHO Collaborating Centre for Reference and Research on Influenza, The Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Melissa H. Little
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children’s Research Institute, Melbourne, Australia
- Department of Paediatrics, Faculty of Medicine, Dentistry and Health Sciences, The University of Melbourne, Melbourne, Australia
- Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
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3
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Chen J, Neil JA, Tan JP, Rudraraju R, Mohenska M, Sun YBY, Walters E, Bediaga NG, Sun G, Zhou Y, Li Y, Drew D, Pymm P, Tham WH, Wang Y, Rossello FJ, Nie G, Liu X, Subbarao K, Polo JM. Author Correction: A placental model of SARS-CoV-2 infection reveals ACE2-dependent susceptibility and differentiation impairment in syncytiotrophoblasts. Nat Cell Biol 2024; 26:305. [PMID: 38110493 PMCID: PMC10866712 DOI: 10.1038/s41556-023-01335-1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Affiliation(s)
- J Chen
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - J A Neil
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - J P Tan
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - R Rudraraju
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - M Mohenska
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Y B Y Sun
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - E Walters
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Adelaide Centre for Epigenetics, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
- South Australian Immunogenomics Cancer Institute, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - N G Bediaga
- Adelaide Centre for Epigenetics, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
- South Australian Immunogenomics Cancer Institute, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - G Sun
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Y Zhou
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Y Li
- Implantation and Pregnancy Research Laboratory, School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria, Australia
| | - D Drew
- Infectious Diseases and Immune Defences Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - P Pymm
- Infectious Diseases and Immune Defences Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - W H Tham
- Infectious Diseases and Immune Defences Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Y Wang
- Implantation and Pregnancy Research Laboratory, School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria, Australia
| | - F J Rossello
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- University of Melbourne Centre for Cancer Research, The University of Melbourne, Melbourne, Victoria, Australia
| | - G Nie
- Implantation and Pregnancy Research Laboratory, School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria, Australia
| | - X Liu
- School of Life Sciences, Westlake University, Hangzhou, China
- Research Center for Industries of the Future, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Westlake Institute for Advanced Study, Hangzhou, China
| | - K Subbarao
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, Victoria, Australia.
| | - J M Polo
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia.
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia.
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia.
- Adelaide Centre for Epigenetics, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia.
- South Australian Immunogenomics Cancer Institute, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia.
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4
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Chen J, Neil JA, Tan JP, Rudraraju R, Mohenska M, Sun YBY, Walters E, Bediaga NG, Sun G, Zhou Y, Li Y, Drew D, Pymm P, Tham WH, Wang Y, Rossello FJ, Nie G, Liu X, Subbarao K, Polo JM. A placental model of SARS-CoV-2 infection reveals ACE2-dependent susceptibility and differentiation impairment in syncytiotrophoblasts. Nat Cell Biol 2023; 25:1223-1234. [PMID: 37443288 PMCID: PMC10415184 DOI: 10.1038/s41556-023-01182-0] [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: 05/24/2022] [Accepted: 06/02/2023] [Indexed: 07/15/2023]
Abstract
SARS-CoV-2 infection causes COVID-19. Several clinical reports have linked COVID-19 during pregnancy to negative birth outcomes and placentitis. However, the pathophysiological mechanisms underpinning SARS-CoV-2 infection during placentation and early pregnancy are not clear. Here, to shed light on this, we used induced trophoblast stem cells to generate an in vitro early placenta infection model. We identified that syncytiotrophoblasts could be infected through angiotensin-converting enzyme 2 (ACE2). Using a co-culture model of vertical transmission, we confirmed the ability of the virus to infect syncytiotrophoblasts through a previous endometrial cell infection. We further demonstrated transcriptional changes in infected syncytiotrophoblasts that led to impairment of cellular processes, reduced secretion of HCG hormone and morphological changes vital for syncytiotrophoblast function. Furthermore, different antibody strategies and antiviral drugs restore these impairments. In summary, we have established a scalable and tractable platform to study early placental cell types and highlighted its use in studying strategies to protect the placenta.
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Affiliation(s)
- J Chen
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - J A Neil
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - J P Tan
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - R Rudraraju
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - M Mohenska
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Y B Y Sun
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - E Walters
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- Adelaide Centre for Epigenetics, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
- South Australian Immunogenomics Cancer Institute, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - N G Bediaga
- Adelaide Centre for Epigenetics, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
- South Australian Immunogenomics Cancer Institute, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia
| | - G Sun
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Y Zhou
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
| | - Y Li
- Implantation and Pregnancy Research Laboratory, School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria, Australia
| | - D Drew
- Infectious Diseases and Immune Defences Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - P Pymm
- Infectious Diseases and Immune Defences Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - W H Tham
- Infectious Diseases and Immune Defences Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Melbourne, Victoria, Australia
| | - Y Wang
- Implantation and Pregnancy Research Laboratory, School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria, Australia
| | - F J Rossello
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia
- University of Melbourne Centre for Cancer Research, The University of Melbourne, Melbourne, Victoria, Australia
| | - G Nie
- Implantation and Pregnancy Research Laboratory, School of Health and Biomedical Sciences, RMIT University, Melbourne, Victoria, Australia
| | - X Liu
- School of Life Sciences, Westlake University, Hangzhou, China
- Research Center for Industries of the Future, Westlake University, Hangzhou, China
- Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China
- Westlake Institute for Advanced Study, Hangzhou, China
| | - K Subbarao
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia.
- WHO Collaborating Centre for Reference and Research on Influenza, Melbourne, Victoria, Australia.
| | - J M Polo
- Department of Anatomy and Developmental Biology, Monash University, Clayton, Victoria, Australia.
- Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, Victoria, Australia.
- Australian Regenerative Medicine Institute, Monash University, Clayton, Victoria, Australia.
- Adelaide Centre for Epigenetics, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia.
- South Australian Immunogenomics Cancer Institute, Faculty of Health and Medical Sciences, The University of Adelaide, Adelaide, South Australia, Australia.
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5
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Rudraraju R, Gartner MJ, Neil JA, Stout ES, Chen J, Needham EJ, See M, Mackenzie-Kludas C, Yang Lee LY, Wang M, Pointer H, Karavendzas K, Abu-Bonsrah D, Drew D, Yang Sun YB, Tan JP, Sun G, Salavaty A, Charitakis N, Nim HT, Currie PD, Tham WH, Porrello E, Polo JM, Humphrey SJ, Ramialison M, Elliott DA, Subbarao K. Parallel use of human stem cell lung and heart models provide insights for SARS-CoV-2 treatment. Stem Cell Reports 2023; 18:1308-1324. [PMID: 37315523 PMCID: PMC10262339 DOI: 10.1016/j.stemcr.2023.05.007] [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: 03/23/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/16/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) primarily infects the respiratory tract, but pulmonary and cardiac complications occur in severe coronavirus disease 2019 (COVID-19). To elucidate molecular mechanisms in the lung and heart, we conducted paired experiments in human stem cell-derived lung alveolar type II (AT2) epithelial cell and cardiac cultures infected with SARS-CoV-2. With CRISPR-Cas9-mediated knockout of ACE2, we demonstrated that angiotensin-converting enzyme 2 (ACE2) was essential for SARS-CoV-2 infection of both cell types but that further processing in lung cells required TMPRSS2, while cardiac cells required the endosomal pathway. Host responses were significantly different; transcriptome profiling and phosphoproteomics responses depended strongly on the cell type. We identified several antiviral compounds with distinct antiviral and toxicity profiles in lung AT2 and cardiac cells, highlighting the importance of using several relevant cell types for evaluation of antiviral drugs. Our data provide new insights into rational drug combinations for effective treatment of a virus that affects multiple organ systems.
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Affiliation(s)
- Rajeev Rudraraju
- The Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Matthew J Gartner
- The Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Jessica A Neil
- The Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Elizabeth S Stout
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Joseph Chen
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia
| | - Elise J Needham
- Charles Perkins Centre and School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Camperdown, NSW, Australia
| | - Michael See
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia; Monash Bioinformatics Platform, Monash University, Clayton, VIC, Australia
| | - Charley Mackenzie-Kludas
- The Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Leo Yi Yang Lee
- The Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Mingyang Wang
- The Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia
| | - Hayley Pointer
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Kathy Karavendzas
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Dad Abu-Bonsrah
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia
| | - Damien Drew
- Infection and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia
| | - Yu Bo Yang Sun
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia
| | - Jia Ping Tan
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia
| | - Guizhi Sun
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia
| | - Adrian Salavaty
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia; EMBL Australia, Monash University, Clayton, VIC, Australia
| | - Natalie Charitakis
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia; Department of Pediatrics, The Royal Children's Hospital, University of Melbourne Parkville, VIC, Australia
| | - Hieu T Nim
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia; Department of Pediatrics, The Royal Children's Hospital, University of Melbourne Parkville, VIC, Australia
| | - Peter D Currie
- Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia; EMBL Australia, Monash University, Clayton, VIC, Australia
| | - Wai-Hong Tham
- Infection and Immunity Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC, Australia; Department of Medical Biology, The University of Melbourne, Melbourne, VIC, Australia
| | - Enzo Porrello
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia; Melbourne Centre for Cardiovascular Genomics and Regenerative Medicine, The Royal Children's Hospital, Melbourne, VIC, Australia; Department of Anatomy and Physiology, School of Biomedical Sciences, The University of Melbourne, Parkville, VIC, Australia.
| | - Jose M Polo
- Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, Australia; Development and Stem Cells Program, Monash Biomedicine Discovery Institute, Clayton, VIC, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia.
| | - Sean J Humphrey
- Charles Perkins Centre and School of Life and Environmental Sciences, Faculty of Science, The University of Sydney, Camperdown, NSW, Australia.
| | - Mirana Ramialison
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia; Department of Pediatrics, The Royal Children's Hospital, University of Melbourne Parkville, VIC, Australia.
| | - David A Elliott
- The Novo Nordisk Foundation Centre for Stem Cell Medicine (reNEW), Murdoch Children's Research Institute, Melbourne, VIC, Australia; Australian Regenerative Medicine Institute, Monash University, Clayton, VIC, Australia; Department of Pediatrics, The Royal Children's Hospital, University of Melbourne Parkville, VIC, Australia.
| | - Kanta Subbarao
- The Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, VIC, Australia; The WHO Collaborating Centre for Reference and Research on Influenza, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.
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6
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Mordant FL, Price OH, Rudraraju R, Slavin MA, Marshall C, Worth LJ, Peck H, Barr IG, Sullivan SG, Subbarao K. Antibody titres elicited by the 2018 seasonal inactivated influenza vaccine decline by 3 months post-vaccination but persist for at least 6 months. Influenza Other Respir Viruses 2022; 17:e13072. [PMID: 36451293 PMCID: PMC9835415 DOI: 10.1111/irv.13072] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Accepted: 11/06/2022] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND In Australia, seasonal inactivated influenza vaccine is typically offered in April. However, the onset, peak and end of a typical influenza season vary, and optimal timing for vaccination remains unclear. Here, we investigated vaccine-induced antibody response kinetics over 6 months in different age groups. METHODS We conducted a prospective serosurvey among 71 adults aged 18-50 years, 15 community-dwelling ('healthy') and 16 aged-care facility resident ('frail') older adults aged ≥65 years who received the 2018 southern hemisphere vaccines. Sera were collected at baseline, and 1, 2, 4, and 6 months post-vaccination. Antibody titres were measured by haemagglutination inhibition or microneutralisation assays. Geometric mean titres were estimated using random effects regression modelling and superimposed on 2014-2018 influenza season epidemic curves. RESULTS Antibody titres peaked 1.2-1.3 months post-vaccination for all viruses, declined by 3 months post-vaccination but, notably, persisted above baseline after 6 months in all age groups by 1.3- to 1.5-fold against A(H1N1)pdm09, 1.7- to 2-fold against A(H3N2), 1.7- to 2.1-fold against B/Yamagata and 1.8-fold against B/Victoria. Antibody kinetics were similar among different age groups. Antibody responses were poor against cell-culture grown compared to egg-grown viruses. CONCLUSIONS These results suggest subtype-specific antibody-mediated protection persists for at least 6 months, which corresponds to the duration of a typical influenza season.
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Affiliation(s)
- Francesca L. Mordant
- Department of Microbiology and ImmunologyUniversity of Melbourne at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
| | - Olivia H. Price
- World Health Organization Collaborating Centre for Reference and Research on Influenza at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
| | - Rajeev Rudraraju
- Department of Microbiology and ImmunologyUniversity of Melbourne at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
| | - Monica A. Slavin
- Department of Infectious Diseases and Infection PreventionPeter MacCallum Cancer CentreMelbourneAustralia,National Centre for Infections in Cancer (NCIC), Sir Peter MacCallum Department of OncologyUniversity of MelbourneMelbourneAustralia,Immunocompromised Host Infection ServiceRoyal Melbourne HospitalMelbourneAustralia,Department of Infectious DiseasesUniversity of Melbourne at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
| | - Caroline Marshall
- Department of Infectious DiseasesUniversity of Melbourne at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia,Infection Prevention and Surveillance ServiceMelbourne HealthMelbourneAustralia
| | - Leon J. Worth
- Department of Infectious Diseases and Infection PreventionPeter MacCallum Cancer CentreMelbourneAustralia,National Centre for Infections in Cancer (NCIC), Sir Peter MacCallum Department of OncologyUniversity of MelbourneMelbourneAustralia,Victorian Healthcare Associated Infection Surveillance System (VICNISS)Royal Melbourne Hospital at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
| | - Heidi Peck
- World Health Organization Collaborating Centre for Reference and Research on Influenza at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
| | - Ian G. Barr
- Department of Microbiology and ImmunologyUniversity of Melbourne at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia,World Health Organization Collaborating Centre for Reference and Research on Influenza at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
| | - Sheena G. Sullivan
- World Health Organization Collaborating Centre for Reference and Research on Influenza at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia,Department of Infectious DiseasesUniversity of Melbourne at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
| | - Kanta Subbarao
- Department of Microbiology and ImmunologyUniversity of Melbourne at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia,World Health Organization Collaborating Centre for Reference and Research on Influenza at the Peter Doherty Institute for Infection and ImmunityMelbourneAustralia
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7
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Vanslambrouck JM, Wilson SB, Tan KS, Groenewegen E, Rudraraju R, Neil J, Lawlor KT, Mah S, Scurr M, Howden SE, Subbarao K, Little MH. Enhanced metanephric specification to functional proximal tubule enables toxicity screening and infectious disease modelling in kidney organoids. Nat Commun 2022; 13:5943. [PMID: 36209212 PMCID: PMC9547573 DOI: 10.1038/s41467-022-33623-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [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: 10/13/2021] [Accepted: 09/27/2022] [Indexed: 01/08/2023] Open
Abstract
While pluripotent stem cell-derived kidney organoids are now being used to model renal disease, the proximal nephron remains immature with limited evidence for key functional solute channels. This may reflect early mispatterning of the nephrogenic mesenchyme and/or insufficient maturation. Here we show that enhanced specification to metanephric nephron progenitors results in elongated and radially aligned proximalised nephrons with distinct S1 - S3 proximal tubule cell types. Such PT-enhanced organoids possess improved albumin and organic cation uptake, appropriate KIM-1 upregulation in response to cisplatin, and improved expression of SARS-CoV-2 entry factors resulting in increased viral replication. The striking proximo-distal orientation of nephrons resulted from localized WNT antagonism originating from the organoid stromal core. PT-enhanced organoids represent an improved model to study inherited and acquired proximal tubular disease as well as drug and viral responses.
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Affiliation(s)
- Jessica M Vanslambrouck
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Sean B Wilson
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Ker Sin Tan
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Ella Groenewegen
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Rajeev Rudraraju
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, Australia
| | - Jessica Neil
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, Australia
| | - Kynan T Lawlor
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Sophia Mah
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Michelle Scurr
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Sara E Howden
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia
| | - Kanta Subbarao
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC, Australia
| | - Melissa H Little
- Murdoch Children's Research Institute, Flemington Rd, Parkville, VIC, Australia.
- Department of Paediatrics, The University of Melbourne, Parkville, VIC, Australia.
- Department of Anatomy and Neuroscience, The University of Melbourne, Parkville, VIC, Australia.
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8
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Rudraraju R, Gartner MJ, Neil JA, Stout ES, Chen J, Needham EJ, See M, Mackenzie-Kludas C, Yang Lee LY, Wang M, Pointer H, Karavendzas K, Abu-Bonsrah D, Drew D, Sun YBY, Tan JP, Sun G, Salavaty A, Charitakis N, Nim HT, Currie PD, Tham WH, Porrello E, Polo J, Humphrey SJ, Ramialison M, Elliott DA, Subbarao K. Parallel use of pluripotent human stem cell lung and heart models provide new insights for treatment of SARS-CoV-2. bioRxiv 2022:2022.09.20.508614. [PMID: 36172136 PMCID: PMC9516846 DOI: 10.1101/2022.09.20.508614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
SARS-CoV-2 primarily infects the respiratory tract, but pulmonary and cardiac complications occur in severe COVID-19. To elucidate molecular mechanisms in the lung and heart, we conducted paired experiments in human stem cell-derived lung alveolar type II (AT2) epithelial cell and cardiac cultures infected with SARS-CoV-2. With CRISPR- Cas9 mediated knock-out of ACE2, we demonstrated that angiotensin converting enzyme 2 (ACE2) was essential for SARS-CoV-2 infection of both cell types but further processing in lung cells required TMPRSS2 while cardiac cells required the endosomal pathway. Host responses were significantly different; transcriptome profiling and phosphoproteomics responses depended strongly on the cell type. We identified several antiviral compounds with distinct antiviral and toxicity profiles in lung AT2 and cardiac cells, highlighting the importance of using several relevant cell types for evaluation of antiviral drugs. Our data provide new insights into rational drug combinations for effective treatment of a virus that affects multiple organ systems. One-sentence summary Rational treatment strategies for SARS-CoV-2 derived from human PSC models.
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9
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Vanslambrouck JM, Wilson SB, Tan KS, Groenewegen E, Rudraraju R, Neil J, Lawlor KT, Mah S, Scurr M, Howden SE, Subbarao K, Little MH. Enhanced metanephric specification to functional proximal tubule enables toxicity screening and infectious disease modelling in kidney organoids. bioRxiv 2022:2021.10.14.464320. [PMID: 35665006 PMCID: PMC9164445 DOI: 10.1101/2021.10.14.464320] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
While pluripotent stem cell-derived kidney organoids are now being used to model renal disease, the proximal nephron remains immature with limited evidence for key functional solute channels. This may reflect early mispatterning of the nephrogenic mesenchyme and/or insufficient maturation. Here we show that enhanced specification to metanephric nephron progenitors results in elongated and radially aligned proximalised nephrons with distinct S1 - S3 proximal tubule cell types. Such PT-enhanced organoids possess improved albumin and organic cation uptake, appropriate KIM-1 upregulation in response to cisplatin, and improved expression of SARS-CoV-2 entry factors resulting in increased viral replication. The striking proximo-distal orientation of nephrons resulted from localized WNT antagonism originating from the organoid stromal core. PT-enhanced organoids represent an improved model to study inherited and acquired proximal tubular disease as well as drug and viral responses.
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Affiliation(s)
- Jessica M. Vanslambrouck
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
| | - Sean B. Wilson
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
| | - Ker Sin Tan
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Ella Groenewegen
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Rajeev Rudraraju
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, VIC, Australia
| | - Jessica Neil
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, VIC, Australia
| | - Kynan T. Lawlor
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
| | - Sophia Mah
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Michelle Scurr
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
| | - Sara E. Howden
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
| | - Kanta Subbarao
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, VIC, Australia
| | - Melissa H. Little
- Murdoch Children’s Research Institute, Flemington Rd, Parkville, VIC, Australia
- Department of Paediatrics, The University of Melbourne, VIC, Australia
- Department of Anatomy and Neuroscience, The University of Melbourne, VIC, Australia
- Author for correspondence: M.H.L.: +61 3 9936 6206;
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10
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Messina NL, Germano S, McElroy R, Rudraraju R, Bonnici R, Pittet LF, Neeland MR, Nicholson S, Subbarao K, Curtis N. Off-target effects of bacillus Calmette-Guérin vaccination on immune responses to SARS-CoV-2: implications for protection against severe COVID-19. Clin Transl Immunology 2022; 11:e1387. [PMID: 35573165 PMCID: PMC9028103 DOI: 10.1002/cti2.1387] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [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: 03/03/2022] [Revised: 03/25/2022] [Accepted: 03/29/2022] [Indexed: 01/03/2023] Open
Abstract
Background and objectives Because of its beneficial off‐target effects against non‐mycobacterial infectious diseases, bacillus Calmette–Guérin (BCG) vaccination might be an accessible early intervention to boost protection against novel pathogens. Multiple epidemiological studies and randomised controlled trials (RCTs) are investigating the protective effect of BCG against coronavirus disease 2019 (COVID‐19). Using samples from participants in a placebo‐controlled RCT aiming to determine whether BCG vaccination reduces the incidence and severity of COVID‐19, we investigated the immunomodulatory effects of BCG on in vitro immune responses to SARS‐CoV‐2. Methods This study used peripheral blood taken from participants in the multicentre RCT and BCG vaccination to reduce the impact of COVID‐19 on healthcare workers (BRACE trial). The whole blood taken from BRACE trial participants was stimulated with γ‐irradiated SARS‐CoV‐2‐infected or mock‐infected Vero cell supernatant. Cytokine responses were measured by multiplex cytokine analysis, and single‐cell immunophenotyping was made by flow cytometry. Results BCG vaccination, but not placebo vaccination, reduced SARS‐CoV‐2‐induced secretion of cytokines known to be associated with severe COVID‐19, including IL‐6, TNF‐α and IL‐10. In addition, BCG vaccination promoted an effector memory phenotype in both CD4+ and CD8+ T cells, and an activation of eosinophils in response to SARS‐CoV‐2. Conclusions The immunomodulatory signature of BCG’s off‐target effects on SARS‐CoV‐2 is consistent with a protective immune response against severe COVID‐19.
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Affiliation(s)
- Nicole L Messina
- Infectious Diseases Group, Infection and Immunity Theme Murdoch Children's Research Institute Parkville VIC Australia.,Department of Paediatrics The University of Melbourne Parkville VIC Australia
| | - Susie Germano
- Infectious Diseases Group, Infection and Immunity Theme Murdoch Children's Research Institute Parkville VIC Australia
| | - Rebecca McElroy
- Infectious Diseases Group, Infection and Immunity Theme Murdoch Children's Research Institute Parkville VIC Australia
| | - Rajeev Rudraraju
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Parkville VIC Australia
| | - Rhian Bonnici
- Infectious Diseases Group, Infection and Immunity Theme Murdoch Children's Research Institute Parkville VIC Australia
| | - Laure F Pittet
- Infectious Diseases Group, Infection and Immunity Theme Murdoch Children's Research Institute Parkville VIC Australia.,Department of Paediatrics The University of Melbourne Parkville VIC Australia.,Paediatric Infectious Diseases Unit Faculty of Medicine Geneva University Hospitals Geneva Switzerland
| | - Melanie R Neeland
- Department of Paediatrics The University of Melbourne Parkville VIC Australia.,Molecular Immunity Group, Infection and Immunity Theme Murdoch Children's Research Institute Parkville VIC Australia
| | - Suellen Nicholson
- Victorian Infectious Diseases Reference Laboratory The Royal Melbourne Hospital The Peter Doherty Institute for Infection and Immunity Parkville VIC Australia
| | - Kanta Subbarao
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Parkville VIC Australia.,WHO Collaborating Centre for Reference and Research on Influenza Peter Doherty Institute for Infection and Immunity Parkville VIC Australia
| | - Nigel Curtis
- Infectious Diseases Group, Infection and Immunity Theme Murdoch Children's Research Institute Parkville VIC Australia.,Department of Paediatrics The University of Melbourne Parkville VIC Australia.,Infectious Diseases The Royal Children's Hospital Melbourne Parkville VIC Australia
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11
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Carlo W, Padilla L, Xu W, Carboni M, Kleinmahon J, Sparks J, Rudraraju R, Villa C, Singh T. Racial and Socioeconomic Disparities in Pediatric Heart Transplant Outcomes in the Era of Anti-Thymocyte Globulin Induction. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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12
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Fareh M, Zhao W, Hu W, Casan JML, Kumar A, Symons J, Zerbato JM, Fong D, Voskoboinik I, Ekert PG, Rudraraju R, Purcell DFJ, Lewin SR, Trapani JA. Reprogrammed CRISPR-Cas13b suppresses SARS-CoV-2 replication and circumvents its mutational escape through mismatch tolerance. Nat Commun 2021; 12:4270. [PMID: 34257311 PMCID: PMC8277810 DOI: 10.1038/s41467-021-24577-9] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [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: 11/23/2020] [Accepted: 06/25/2021] [Indexed: 01/18/2023] Open
Abstract
The recent dramatic appearance of variants of concern of SARS-coronavirus-2 (SARS-CoV-2) highlights the need for innovative approaches that simultaneously suppress viral replication and circumvent viral escape from host immunity and antiviral therapeutics. Here, we employ genome-wide computational prediction and single-nucleotide resolution screening to reprogram CRISPR-Cas13b against SARS-CoV-2 genomic and subgenomic RNAs. Reprogrammed Cas13b effectors targeting accessible regions of Spike and Nucleocapsid transcripts achieved >98% silencing efficiency in virus-free models. Further, optimized and multiplexed Cas13b CRISPR RNAs (crRNAs) suppress viral replication in mammalian cells infected with replication-competent SARS-CoV-2, including the recently emerging dominant variant of concern B.1.1.7. The comprehensive mutagenesis of guide-target interaction demonstrated that single-nucleotide mismatches does not impair the capacity of a potent single crRNA to simultaneously suppress ancestral and mutated SARS-CoV-2 strains in infected mammalian cells, including the Spike D614G mutant. The specificity, efficiency and rapid deployment properties of reprogrammed Cas13b described here provide a molecular blueprint for antiviral drug development to suppress and prevent a wide range of SARS-CoV-2 mutants, and is readily adaptable to other emerging pathogenic viruses.
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Affiliation(s)
- Mohamed Fareh
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Australia.
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia.
| | - Wei Zhao
- The Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Wenxin Hu
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Joshua M L Casan
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Amit Kumar
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Jori Symons
- The Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Jennifer M Zerbato
- The Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Danielle Fong
- The Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Ilia Voskoboinik
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
| | - Paul G Ekert
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
- Murdoch Children's Research Institute, Parkville, Australia
- Children's Cancer Institute, Randwick, NSW, Australia
| | - Rajeev Rudraraju
- The Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
- WHO Collaborating Centre for Research and Reference in Influenza, Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Damian F J Purcell
- Department of Microbiology and Immunology, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Sharon R Lewin
- The Department of Infectious Diseases, The University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia.
- Victorian Infectious Diseases Service, Royal Melbourne Hospital at the Peter Doherty Institute for Infection and Immunity, Melbourne, Australia.
- Department of Infectious Diseases, Alfred Hospital and Monash University, Melbourne, Australia.
| | - Joseph A Trapani
- Cancer Immunology Program, Peter MacCallum Cancer Centre, Melbourne, Australia
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville, Australia
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13
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Mills RJ, Humphrey SJ, Fortuna PRJ, Lor M, Foster SR, Quaife-Ryan GA, Johnston RL, Dumenil T, Bishop C, Rudraraju R, Rawle DJ, Le T, Zhao W, Lee L, Mackenzie-Kludas C, Mehdiabadi NR, Halliday C, Gilham D, Fu L, Nicholls SJ, Johansson J, Sweeney M, Wong NCW, Kulikowski E, Sokolowski KA, Tse BWC, Devilée L, Voges HK, Reynolds LT, Krumeich S, Mathieson E, Abu-Bonsrah D, Karavendzas K, Griffen B, Titmarsh D, Elliott DA, McMahon J, Suhrbier A, Subbarao K, Porrello ER, Smyth MJ, Engwerda CR, MacDonald KPA, Bald T, James DE, Hudson JE. BET inhibition blocks inflammation-induced cardiac dysfunction and SARS-CoV-2 infection. Cell 2021; 184:2167-2182.e22. [PMID: 33811809 PMCID: PMC7962543 DOI: 10.1016/j.cell.2021.03.026] [Citation(s) in RCA: 99] [Impact Index Per Article: 33.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Revised: 02/10/2021] [Accepted: 03/11/2021] [Indexed: 12/13/2022]
Abstract
Cardiac injury and dysfunction occur in COVID-19 patients and increase the risk of mortality. Causes are ill defined but could be through direct cardiac infection and/or inflammation-induced dysfunction. To identify mechanisms and cardio-protective drugs, we use a state-of-the-art pipeline combining human cardiac organoids with phosphoproteomics and single nuclei RNA sequencing. We identify an inflammatory “cytokine-storm”, a cocktail of interferon gamma, interleukin 1β, and poly(I:C), induced diastolic dysfunction. Bromodomain-containing protein 4 is activated along with a viral response that is consistent in both human cardiac organoids (hCOs) and hearts of SARS-CoV-2-infected K18-hACE2 mice. Bromodomain and extraterminal family inhibitors (BETi) recover dysfunction in hCOs and completely prevent cardiac dysfunction and death in a mouse cytokine-storm model. Additionally, BETi decreases transcription of genes in the viral response, decreases ACE2 expression, and reduces SARS-CoV-2 infection of cardiomyocytes. Together, BETi, including the Food and Drug Administration (FDA) breakthrough designated drug, apabetalone, are promising candidates to prevent COVID-19 mediated cardiac damage.
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Affiliation(s)
- Richard J Mills
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Sean J Humphrey
- Charles Perkins Centre, School of Life and Environmental Science, The University of Sydney, Sydney 2006, NSW, Australia
| | | | - Mary Lor
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Simon R Foster
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | | | - Rebecca L Johnston
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Troy Dumenil
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Cameron Bishop
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Rajeev Rudraraju
- The WHO Collaborating Centre for Reference and Research on Influenza, The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, VIC, Australia; Department of Microbiology and Immunology, The University of Melbourne, Melbourne 3052, VIC, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, VIC, Australia
| | - Daniel J Rawle
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Thuy Le
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Wei Zhao
- The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, VIC, Australia
| | - Leo Lee
- The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, VIC, Australia
| | | | - Neda R Mehdiabadi
- Murdoch Children's Research Institute, The Royal Children's Hospital, Melbourne 3052, VIC, Australia
| | | | - Dean Gilham
- Resverlogix Corp., Calgary T3E 6L1, AB, Canada
| | - Li Fu
- Resverlogix Corp., Calgary T3E 6L1, AB, Canada
| | - Stephen J Nicholls
- Victorian Heart Hospital, Monash University, Clayton 3168, VIC, Australia
| | | | | | | | | | - Kamil A Sokolowski
- Preclinical Imaging Facility, Translational Research Institute, Brisbane, QLD, Australia
| | - Brian W C Tse
- Preclinical Imaging Facility, Translational Research Institute, Brisbane, QLD, Australia
| | - Lynn Devilée
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Holly K Voges
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Liam T Reynolds
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Sophie Krumeich
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Ellen Mathieson
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | - Dad Abu-Bonsrah
- Murdoch Children's Research Institute, The Royal Children's Hospital, Melbourne 3052, VIC, Australia; Department of Paediatrics, The University of Melbourne, Melbourne 3052, VIC, Australia
| | - Kathy Karavendzas
- Murdoch Children's Research Institute, The Royal Children's Hospital, Melbourne 3052, VIC, Australia
| | - Brendan Griffen
- Dynomics Inc., San Mateo, CA 94401, USA; Dynomics Pty Ltd, Brisbane 4000, QLD, Australia
| | - Drew Titmarsh
- Dynomics Inc., San Mateo, CA 94401, USA; Dynomics Pty Ltd, Brisbane 4000, QLD, Australia
| | - David A Elliott
- Murdoch Children's Research Institute, The Royal Children's Hospital, Melbourne 3052, VIC, Australia
| | - James McMahon
- Department of Infectious Diseases, Alfred Hospital and Monash University, Melbourne 3004, VIC, Australia; Department of Infectious Diseases, Monash Medical Centre, Clayton 3168, VIC, Australia
| | - Andreas Suhrbier
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia; GVN Center of Excellence, Australian Infectious Diseases Research Centre, Brisbane, QLD, Australia
| | - Kanta Subbarao
- The WHO Collaborating Centre for Reference and Research on Influenza, The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, VIC, Australia; The Peter Doherty Institute for Infection and Immunity, Melbourne 3000, VIC, Australia
| | - Enzo R Porrello
- Murdoch Children's Research Institute, The Royal Children's Hospital, Melbourne 3052, VIC, Australia; Department of Physiology, School of Biomedical Sciences, The University of Melbourne, Melbourne 3052, VIC, Australia
| | - Mark J Smyth
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia
| | | | | | - Tobias Bald
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia; Institute of Experimental Oncology, University Hospital Bonn, Bonn 53127, Germany
| | - David E James
- Charles Perkins Centre, School of Life and Environmental Science, The University of Sydney, Sydney 2006, NSW, Australia; Faculty of Medicine and Health, The University of Sydney, Sydney 2006, NSW, Australia
| | - James E Hudson
- QIMR Berghofer Medical Research Institute, Brisbane 4006, QLD, Australia.
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Subbarao K, Mordant F, Rudraraju R. Convalescent plasma treatment for COVID‐19: Tempering expectations with the influenza experience. Eur J Immunol 2020; 50:1447-1453. [DOI: 10.1002/eji.202048723] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 07/21/2020] [Accepted: 09/03/2020] [Indexed: 12/28/2022]
Affiliation(s)
- Kanta Subbarao
- WHO Collaborating Centre for Reference and Research on Influenza University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC 3000 Australia
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC 3000 Australia
| | - Francesca Mordant
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC 3000 Australia
| | - Rajeev Rudraraju
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC 3000 Australia
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15
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Rudraraju R, Mordant F, Subbarao K. How Live Attenuated Vaccines Can Inform the Development of Broadly Cross-Protective Influenza Vaccines. J Infect Dis 2020; 219:S81-S87. [PMID: 30715386 PMCID: PMC7313962 DOI: 10.1093/infdis/jiy703] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Affiliation(s)
- Rajeev Rudraraju
- Department of Microbiology and Immunology, University of Melbourne
| | | | - Kanta Subbarao
- Department of Microbiology and Immunology, University of Melbourne.,World Health Organization Collaborating Centre for Reference and Research on Influenza, Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
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16
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Abstract
The isolation of broadly neutralising antibodies against the influenza haemagglutinin has spurred investigation into their clinical potential, and has led to advances in influenza virus biology and universal influenza vaccine development. Studies in animal models have been invaluable for demonstrating the prophylactic and therapeutic efficacy of broadly neutralising antibodies, for comparisons with antiviral drugs used as the standard of care, and for defining their mechanism of action and potential role in providing protection from airborne infection.
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Affiliation(s)
- Rajeev Rudraraju
- a WHO Collaborating Centre for Reference and Research on Influenza and the Department of Microbiology and Immunology , The Peter Doherty Institute for Infection and Immunity , Melbourne , Australia
| | - Kanta Subbarao
- a WHO Collaborating Centre for Reference and Research on Influenza and the Department of Microbiology and Immunology , The Peter Doherty Institute for Infection and Immunity , Melbourne , Australia
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17
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Reeves PLS, Rudraraju R, Wong FS, Hamilton-Williams EE, Steptoe RJ. Antigen presenting cell-targeted proinsulin expression converts insulin-specific CD8 + T-cell priming to tolerance in autoimmune-prone NOD mice. Eur J Immunol 2017; 47:1550-1561. [PMID: 28665492 DOI: 10.1002/eji.201747089] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [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: 04/18/2017] [Revised: 05/25/2017] [Accepted: 06/23/2017] [Indexed: 11/07/2022]
Abstract
Type 1 diabetes (T1D) results from autoimmune destruction of insulin-producing pancreatic β cells. Therapies need to incorporate strategies to overcome the genetic defects that impair induction or maintenance of peripheral T-cell tolerance and contribute to disease development. We tested whether the enforced expression of an islet autoantigen in antigen-presenting cells (APC) counteracted peripheral T-cell tolerance defects in autoimmune-prone NOD mice. We observed that insulin-specific CD8+ T cells transferred to mice in which proinsulin was transgenically expressed in APCs underwent several rounds of division and the majority were deleted. Residual insulin-specific CD8+ T cells were rendered unresponsive and this was associated with TCR downregulation, loss of tetramer binding and expression of a range of co-inhibitory molecules. Notably, accumulation and effector differentiation of insulin-specific CD8+ T cells in pancreatic lymph nodes was prominent in non-transgenic recipients but blocked by transgenic proinsulin expression. This shift from T-cell priming to T-cell tolerance exemplifies the tolerogenic capacity of autoantigen expression by APC and the capacity to overcome genetic tolerance defects.
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Affiliation(s)
- Peta L S Reeves
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - Rajeev Rudraraju
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - F Susan Wong
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, Wales, UK
| | - Emma E Hamilton-Williams
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - Raymond J Steptoe
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
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18
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Reeves PL, Rudraraju R, Liu X, Wong FS, Hamilton-Williams EE, Steptoe RJ. APC-targeted proinsulin expression inactivates insulin-specific memory CD8 + T cells in NOD mice. Immunol Cell Biol 2017; 95:765-774. [PMID: 28611473 DOI: 10.1038/icb.2017.48] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Revised: 06/05/2017] [Accepted: 06/06/2017] [Indexed: 12/18/2022]
Abstract
Type 1 diabetes (T1D) results from T-cell-mediated autoimmune destruction of pancreatic β cells. Effector T-cell responses emerge early in disease development and expand as disease progresses. Following β-cell destruction, a long-lived T-cell memory is generated that represents a barrier to islet transplantation and other cellular insulin-replacement therapies. Development of effective immunotherapies that control or ablate β-cell destructive effector and memory T-cell responses has the potential to prevent disease progression and recurrence. Targeting antigen expression to antigen-presenting cells inactivates cognate CD8+ effector and memory T-cell responses and has therapeutic potential. Here we investigated this in the context of insulin-specific responses in the non-obese diabetic mouse where genetic immune tolerance defects could impact on therapeutic tolerance induction. Insulin-specific CD8+ memory T cells transferred to mice expressing proinsulin in antigen-presenting cells proliferated in response to transgenically expressed proinsulin and the majority were rapidly deleted. A small proportion of transferred insulin-specific Tmem remained undeleted and these were antigen-unresponsive, exhibited reduced T cell receptor (TCR) expression and H-2Kd/insB15-23 tetramer binding and expressed co-inhibitory molecules. Expression of proinsulin in antigen-presenting cells also abolished the diabetogenic capacity of CD8+ effector T cells. Therefore, destructive insulin-specific CD8+ T cells are effectively inactivated by enforced proinsulin expression despite tolerance defects that exist in diabetes-prone NOD mice. These findings have important implications in developing immunotherapeutic approaches to T1D and other T-cell-mediated autoimmune diseases.
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Affiliation(s)
- Peta Ls Reeves
- The University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
| | - Rajeev Rudraraju
- The University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
| | - Xiao Liu
- The University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
| | - F Susan Wong
- Institute of Molecular &Experimental Medicine, Cardiff University School of Medicine, Cardiff, Wales
| | | | - Raymond J Steptoe
- The University of Queensland Diamantina Institute, Brisbane, Queensland, Australia
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19
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Al-Kouba J, Wilkinson AN, Starkey MR, Rudraraju R, Werder RB, Liu X, Law SC, Horvat JC, Brooks JF, Hill GR, Davies JM, Phipps S, Hansbro PM, Steptoe RJ. Allergen-encoding bone marrow transfer inactivates allergic T cell responses, alleviating airway inflammation. JCI Insight 2017; 2:85742. [PMID: 28570267 DOI: 10.1172/jci.insight.85742] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [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: 11/30/2015] [Accepted: 04/25/2017] [Indexed: 01/09/2023] Open
Abstract
Memory Th2 cell responses underlie the development and perpetuation of allergic diseases. Because these states result from immune dysregulation, established Th2 cell responses represent a significant challenge for conventional immunotherapies. New approaches that overcome the detrimental effects of immune dysregulation are required. We tested whether memory Th2 cell responses were silenced using a therapeutic approach where allergen expression in DCs is transferred to sensitized recipients using BM cells as a vector for therapeutic gene transfer. Development of allergen-specific Th2 responses and allergen-induced airway inflammation was blocked by expression of allergen in DCs. Adoptive transfer studies showed that Th2 responses were inactivated by a combination of deletion and induction of T cell unresponsiveness. Transfer of BM encoding allergen expression targeted to DCs terminated, in an allergen-specific manner, Th2 responses in sensitized recipients. Importantly, when preexisting airway inflammation was present, there was effective silencing of Th2 cell responses, airway inflammation was alleviated, and airway hyperreactivity was reversed. The effectiveness of DC-targeted allergen expression to terminate established Th2 responses in sensitized animals indicates that exploiting cell-intrinsic T cell tolerance pathways could lead to development of highly effective immunotherapies.
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Affiliation(s)
- Jane Al-Kouba
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - Andrew N Wilkinson
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - Malcolm R Starkey
- Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Rajeev Rudraraju
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - Rhiannon B Werder
- School of Biomedical Sciences, University of Queensland, Brisbane, Australia
| | - Xiao Liu
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - Soi-Cheng Law
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - Jay C Horvat
- Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Jeremy F Brooks
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
| | - Geoffrey R Hill
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Janet M Davies
- School of Medicine, University of Queensland, Brisbane, Australia
| | - Simon Phipps
- School of Biomedical Sciences, University of Queensland, Brisbane, Australia
| | - Philip M Hansbro
- Hunter Medical Research Institute and University of Newcastle, Newcastle, Australia
| | - Raymond J Steptoe
- The University of Queensland Diamantina Institute, University of Queensland, Brisbane, Australia
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20
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Kim YI, DeVincenzo JP, Jones BG, Rudraraju R, Harrison L, Meyers R, Cehelsky J, Alvarez R, Hurwitz JL. Respiratory syncytial virus human experimental infection model: provenance, production, and sequence of low-passaged memphis-37 challenge virus. PLoS One 2014; 9:e113100. [PMID: 25415360 PMCID: PMC4240712 DOI: 10.1371/journal.pone.0113100] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [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: 09/07/2014] [Accepted: 10/19/2014] [Indexed: 01/11/2023] Open
Abstract
Respiratory syncytial virus (RSV) is the leading cause of lower respiratory tract infections in children and is responsible for as many as 199,000 childhood deaths annually worldwide. To support the development of viral therapeutics and vaccines for RSV, a human adult experimental infection model has been established. In this report, we describe the provenance and sequence of RSV Memphis-37, the low-passage clinical isolate used for the model's reproducible, safe, experimental infections of healthy, adult volunteers. The predicted amino acid sequences for major proteins of Memphis-37 are compared to nine other RSV A and B amino acid sequences to examine sites of vaccine, therapeutic, and pathophysiologic interest. Human T- cell epitope sequences previously defined by in vitro studies were observed to be closely matched between Memphis-37 and the laboratory strain RSV A2. Memphis-37 sequences provide baseline data with which to assess: (i) virus heterogeneity that may be evident following virus infection/transmission, (ii) the efficacy of candidate RSV vaccines and therapeutics in the experimental infection model, and (iii) the potential emergence of escape mutants as a consequence of experimental drug treatments. Memphis-37 is a valuable tool for pre-clinical research, and to expedite the clinical development of vaccines, therapeutic immunomodulatory agents, and other antiviral drug strategies for the protection of vulnerable populations against RSV disease.
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Affiliation(s)
- Young-In Kim
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- Children's Foundation Research Institute of Le Bonheur Children's Hospital, Memphis, Tennessee, United States of America
| | - John P. DeVincenzo
- Department of Pediatrics, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- Children's Foundation Research Institute of Le Bonheur Children's Hospital, Memphis, Tennessee, United States of America
| | - Bart G. Jones
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, United States of America
| | - Rajeev Rudraraju
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, United States of America
| | - Lisa Harrison
- Children's Foundation Research Institute of Le Bonheur Children's Hospital, Memphis, Tennessee, United States of America
| | - Rachel Meyers
- Alnylam Pharmaceuticals, Cambridge, Massachusetts, United States of America
| | - Jeff Cehelsky
- Alnylam Pharmaceuticals, Cambridge, Massachusetts, United States of America
| | - Rene Alvarez
- Alnylam Pharmaceuticals, Cambridge, Massachusetts, United States of America
| | - Julia L. Hurwitz
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee, United States of America
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21
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Rudraraju R, Sealy RE, Surman SL, Thomas PG, Dayton BH, Hurwitz JL. Non-random lymphocyte distribution among virus-infected cells of the respiratory tract. Viral Immunol 2014; 26:378-84. [PMID: 24328934 DOI: 10.1089/vim.2013.0033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The rules of T cell positioning within virus-infected respiratory tract tissues are poorly understood. We therefore marked cervical lymph node or spleen cells from Sendai virus (SeV) primed mice and transferred lymphocytes to animals infected with SeV expressing an enhanced green fluorescent protein (SeV-eGFP). Confocal imaging showed that when T cells entered a field of infected respiratory tract epithelium, they assumed a spatial distribution that maximized distances between each donor cell and its nearest neighbor. We therefore hypothesized that lymphocytes repelled one another by altering their chemokine/cytokine microenvironment. Subsequent in vitro tests confirmed that when SeV-primed lymphocytes were co-cultured with infected respiratory tract stroma, there was a profound upregulation of chemokines including RANTES, CXCL9, CXCL10, and CCL2. Based on these data, we propose that newly resident lymphocytes within virus-infected respiratory tract tissues may create halos of chemokines/cytokines to mark their territories; lymphocyte cross-talk may then inhibit cell overlap and redundancy to expedite virus clearance.
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Affiliation(s)
- Rajeev Rudraraju
- 1 Department of Infectious Diseases, St. Jude Children's Research Hospital , Memphis, Tennessee
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22
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Penkert R, Surman S, Jones B, Sealy R, Neale G, Rudraraju R, Hurwitz J. Deciphering and correcting impaired respiratory virus-specific immunity caused by vitamin A deficiency (VIR2P.1017). The Journal of Immunology 2014. [DOI: 10.4049/jimmunol.192.supp.75.6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Vitamin A deficiency (VAD) is a leading contributor to pediatric morbidity and mortality worldwide. Recently we have shown that VAD in mice impairs mucosal IgA responses in the upper respiratory tract during both paramyxovirus and influenza virus vaccination, thus impeding a first defense against these pathogens at their point of entry. The key vitamin A metabolite responsible for normal immune function is retinoic acid (RA). Previously, RA was believed to be produced predominantly by gut dendritic cells expressing aldehyde dehydrogenase (ALDH1A), an enzyme required for metabolism of RA from RA precursors. However, we found that epithelial cells of the respiratory tract autonomously produce ALDH1A. These cells also produce IL-6 and GM-CSF and can facilitate IgA production from activated splenocytes in vitro. Further in vitro analyses demonstrated that outcomes of vitamin A supplementation were affected by a variety of factors including concentration and type of vitamin A metabolite, as well as cells targeted. Based on these results, we supplemented a respiratory virus vaccine with a single intranasal dose of retinol, retinyl palmitate, or a combination of IL-6 and GM-CSF in VAD mice, and observed enhanced virus-specific mucosal IgA. In total, our data provide insight into the role of vitamin A in virus-specific immunity, while defining feasible methods for the correction of impaired mucosal immune responses in individuals with VAD.
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Affiliation(s)
- Rhiannon Penkert
- 1Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN
| | - Sherri Surman
- 1Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN
| | - Bart Jones
- 1Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN
| | - Robert Sealy
- 1Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN
| | - Geoffrey Neale
- 2Hartwell Center, St Jude Children's Research Hospital, Memphis, TN
| | - Rajeev Rudraraju
- 1Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN
| | - Julia Hurwitz
- 1Infectious Diseases, St Jude Children's Research Hospital, Memphis, TN
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23
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Surman SL, Jones BG, Sealy RE, Rudraraju R, Hurwitz JL. Oral retinyl palmitate or retinoic acid corrects mucosal IgA responses toward an intranasal influenza virus vaccine in vitamin A deficient mice. Vaccine 2014; 32:2521-4. [PMID: 24657715 DOI: 10.1016/j.vaccine.2014.03.025] [Citation(s) in RCA: 36] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2013] [Revised: 02/14/2014] [Accepted: 03/05/2014] [Indexed: 02/07/2023]
Abstract
Vitamin A deficiency (VAD) is a leading cause of pediatric morbidity and mortality due to infectious diseases. Recent pre-clinical studies have revealed that VAD impairs mucosal IgA-producing antibody forming cell (AFC) responses toward a paramyxovirus vaccine in the upper respiratory tract (URT), thus impeding a first line of defense at the pathogen's point-of-entry. The studies described here tested the hypothesis that VAD may also impair immune responses after FluMist vaccinations. Results show that (i) IgA-producing antibody forming cells (AFCs) are significantly reduced following FluMist vaccination in VAD mice, and (ii) oral doses of either retinyl palmitate or retinoic acid administered on days 0, 3, and 7 relative to vaccination rescue the response. Data encourage the conduct of clinical studies to determine if there are FluMist vaccine weaknesses in human VAD populations and to test corrective supplementation strategies. Improvements in vaccine efficacy may ultimately reduce the morbidity and mortality caused by influenza virus worldwide.
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Affiliation(s)
- S L Surman
- Department of Infectious Diseases, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, United States
| | - B G Jones
- Department of Infectious Diseases, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, United States
| | - R E Sealy
- Department of Infectious Diseases, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, United States
| | - R Rudraraju
- Department of Infectious Diseases, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, United States
| | - J L Hurwitz
- Department of Infectious Diseases, St. Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, United States; Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, TN, United States.
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24
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Rudraraju R, Jones BG, Surman SL, Sealy RE, Thomas PG, Hurwitz JL. Respiratory tract epithelial cells express retinaldehyde dehydrogenase ALDH1A and enhance IgA production by stimulated B cells in the presence of vitamin A. PLoS One 2014; 9:e86554. [PMID: 24466150 PMCID: PMC3899288 DOI: 10.1371/journal.pone.0086554] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [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: 08/20/2013] [Accepted: 12/15/2013] [Indexed: 11/18/2022] Open
Abstract
Morbidity and mortality due to viral infections are major health concerns, particularly when individuals are vitamin A deficient. Vitamin A deficiency significantly impairs mucosal IgA, a first line of defense against virus at its point of entry. Previous reports have suggested that CD11c(Hi) dendritic cells (DCs) of the gastrointestinal tract produce retinaldehyde dehydrogenase (ALDH1A), which metabolizes vitamin A precursors to retinoic acid to support normal mucosal immunity. Given that the upper respiratory tract (URT) and gastrointestinal tract share numerous characteristics, we asked if the CD11c(Hi) DCs of the URT might also express ALDH1A. To address this question, we examined both CD11c(Hi) test cells and CD11c(Lo/neg) control cells from nasal tissue. Surprisingly, the CD11c(Lo/neg) cells expressed more ALDH1A mRNA per cell than did the CD11c(Hi) cells. Further evaluation of CD11c(Lo/neg) populations by PCR and staining of respiratory tract sections revealed that epithelial cells were robust producers of both ALDH1A mRNA and protein. Moreover, CD11c(Lo/neg) cells from nasal tissue (and a homogeneous respiratory tract epithelial cell line) enhanced IgA production by lipopolysaccharide (LPS)-stimulated splenocyte cultures in the presence of the retinoic acid precursor retinol. Within co-cultures, there was increased expression of MCP-1, IL-6, and GM-CSF, the latter two of which were necessary for IgA upregulation. All three cytokines/chemokines were expressed by the LPS-stimulated respiratory tract epithelial cell line in the absence of splenocytes. These data demonstrate the autonomous potential of respiratory tract epithelial cells to support vitamin A-mediated IgA production, and encourage the clinical testing of intranasal vitamin A supplements in vitamin A deficient populations to improve mucosal immune responses toward respiratory tract pathogens and vaccines.
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Affiliation(s)
- Rajeev Rudraraju
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Bart G. Jones
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Sherri L. Surman
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Robert E. Sealy
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
| | - Paul G. Thomas
- Department of Immunology, St. Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
| | - Julia L. Hurwitz
- Department of Infectious Diseases, St Jude Children’s Research Hospital, Memphis, Tennessee, United States of America
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, Memphis, Tennessee, United States of America
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25
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Rudraraju R, Jones B, Surman S, Sealy R, Woodland D, Hurwitz J. Dissecting the potential of resident CD11c-positive and CD11c-negative cells to support vitamin A-driven virus-specific immune responses in the upper respiratory tract (P6139). The Journal of Immunology 2013. [DOI: 10.4049/jimmunol.190.supp.66.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Morbidity and mortality due to viral infections are major health concerns, particularly when individuals are vitamin A (VitA) deficient (VAD). Previous literature has suggested that CD11c+ dendritic cells in the gastrointestinal tract are largely responsible for VitA metabolism and the associated homing and function of gut lymphocytes. To determine if/how VitA impacts virus-specific immunity in the upper respiratory tract (RT), we administered virus intranasally (IN) to VAD mice. We found that virus-specific B- and T-cell responses were altered, with a significant down-regulation of IgA in the nasal wash of VAD mice compared to controls. We next asked if RT cells could autonomously support VitA-driven IgA production. We harvested CD11c+ and Cd11c- cells from diffuse nasal associated lymphoid tissues and found that both expressed RALDH mRNA, as required for VitA metabolism. Furthermore, preliminary data showed that both populations enhanced IgA in activated splenocyte cultures. To investigate which CD11c- cells were pertinent to function, we tested a RT epithelial cell line. These cells: (i) expressed RALDH mRNA and (ii) enhanced IgA in the presence of VitA A derivatives. In total, data highlighted the autonomous potential of RT cells to support a VitA-driven immune response. Results may ultimately instruct a clinical healthcare initiative to supplement VAD individuals with VitA by the oral or IN route, to enhance RT immunity toward viral infections and viral vaccines.
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Affiliation(s)
- Rajeev Rudraraju
- 1Infectious Diseases, St. Jude Children's Res. Hosp., Memphis, TN
| | - Bart Jones
- 1Infectious Diseases, St. Jude Children's Res. Hosp., Memphis, TN
| | - Sherri Surman
- 1Infectious Diseases, St. Jude Children's Res. Hosp., Memphis, TN
| | - Robert Sealy
- 1Infectious Diseases, St. Jude Children's Res. Hosp., Memphis, TN
| | - David Woodland
- 2Trudeau Inst., Saranac Lake, NY
- 3Keystone Symposia, Silverthorne, CO
| | - Julia Hurwitz
- 1Infectious Diseases, St. Jude Children's Res. Hosp., Memphis, TN
- 4University of Tennessee Health Science Center, Memphis, TN
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26
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Hurwitz J, Portner A, Russell C, Surman S, Jones B, Sealy R, Rudraraju R, DeVincenzo J. SeVRSV, a PIV and RSV vaccine, proves efficacious in a cotton rat maternal antibody model (P4279). The Journal of Immunology 2013. [DOI: 10.4049/jimmunol.190.supp.123.3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Respiratory syncytial virus (RSV) and the human parainfluenza viruses (PIV) are causes of significant morbidity and mortality among infants each year. We are now advancing SeVRSV, a Sendai virus based Jennerian vaccine for human PIV-1 and a recombinant vaccine for RSV. SeVRSV expresses RSV F and induces immunity that protects against RSV in small animals and non-human primates. Immune responses persist systemically and in the respiratory tract, which ensures that pathogens can be blocked at their point-of-entry. One concern surrounding pediatric vaccines is that maternal antibodies may obstruct vaccine efficacy. We therefore designed a cotton rat maternal antibody model to test SeVRSV. First, to define the levels of maternal antibodies typical of the vaccine's intended target population, we titered antibodies from approximately 100 human infants. Then, by passive transfer techniques, we matched these titers in animals. Intranasal vaccination in test animals was followed by the measurement of de novo PIV-specific and RSV-specific antibodies, and cotton rat challenge with RSV to measure protection. In models using polyclonal or monoclonal antibody products with specificities for PIV and/or RSV, the SeVRSV vaccine protected against RSV challenge. Data suggest that SeVRSV will not be inhibited by maternal antibodies in the clinical setting, and encourage rapid development of the vaccine for protection of human infants from PIV and RSV.
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Affiliation(s)
- Julia Hurwitz
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
- 2Department of Microbiology, Immunology and Biochemistry, University of Tennessee, Memphis, TN
| | - Allen Portner
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Charles Russell
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Sherri Surman
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Bart Jones
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Robert Sealy
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Rajeev Rudraraju
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - John DeVincenzo
- 3Le Bonheur Children's Hospital, University of Tennessee Health Science Center, Memphis, TN
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Hurwitz J, Sealy R, Surman S, Thomas P, Dayton B, Rudraraju R. Stay off my lawn: T cell territorialism in virus-infected tissues of the respiratory tract (P6150). The Journal of Immunology 2013. [DOI: 10.4049/jimmunol.190.supp.66.8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Abstract
Little is known of the population dynamics that influence lymphocyte positioning in virus- infected tissues. To address this issue, we primed animals with Sendai virus (SeV) and harvested cervical lymph nodes (CLN) or spleens 10 days later. Cells were unenriched or enriched for CD3, CD4 or CD8 phenotypes and transferred intraorbitally to GFP-SeV infected mice. Cell positions were then examined by confocal microscopy. Results showed that donor cells were configured in infected tissues with limited overlap. In most infected fields, the mean distance between a donor cell and its nearest neighbor was greater than would be predicted by random uniform distribution. To explain these findings, we hypothesized that a newly resident lymphocyte may instruct expression of unique chemokines/cytokines (c/c) in its immediate vicinity to mark its territory and inhibit co-localization by other cells. In vitro tests supported this hypothesis in that when virus-primed CLN were co-cultured with stroma and SeV, there was a synergistic increase in c/c production. Transwell experiments then showed that cell migration was intricately affected by the c/c milieu at local and distant sites. We therefore propose that a newly-resident lymphocyte in an infected tissue creates a c/c halo to identify and claim its territory. Lymphocyte cross-talk may ensure a spatial distribution of effectors to avoid redundancies and enhance the efficiency with which effector cells clear their virus infected targets.
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Affiliation(s)
- Julia Hurwitz
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
- 2University of Tennessee Health Science Center, Memphis, TN
| | - Robert Sealy
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Sherri Surman
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Paul Thomas
- 3Immunology, St. Jude Children's Research Hospital, Memphis, TN
| | | | - Rajeev Rudraraju
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
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Rudraraju R, Jones BG, Sealy R, Surman SL, Hurwitz JL. Respiratory syncytial virus: current progress in vaccine development. Viruses 2013; 5:577-94. [PMID: 23385470 PMCID: PMC3640515 DOI: 10.3390/v5020577] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2013] [Revised: 02/01/2013] [Accepted: 02/04/2013] [Indexed: 12/18/2022] Open
Abstract
Respiratory syncytial virus (RSV) is the etiological agent for a serious lower respiratory tract disease responsible for close to 200,000 annual deaths worldwide. The first infection is generally most severe, while re-infections usually associate with a milder disease. This observation and the finding that re-infection risks are inversely associated with neutralizing antibody titers suggest that immune responses generated toward a first RSV exposure can significantly reduce morbidity and mortality throughout life. For more than half a century, researchers have endeavored to design a vaccine for RSV that can mimic or improve upon natural protective immunity without adverse events. The virus is herein described together with the hurdles that must be overcome to develop a vaccine and some current vaccine development approaches.
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Affiliation(s)
- Rajeev Rudraraju
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA; E-Mails: (R.R.); (B.J.); (R.S.); (S.S.)
| | - Bart G. Jones
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA; E-Mails: (R.R.); (B.J.); (R.S.); (S.S.)
| | - Robert Sealy
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA; E-Mails: (R.R.); (B.J.); (R.S.); (S.S.)
| | - Sherri L. Surman
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA; E-Mails: (R.R.); (B.J.); (R.S.); (S.S.)
| | - Julia L. Hurwitz
- Department of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105, USA; E-Mails: (R.R.); (B.J.); (R.S.); (S.S.)
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee Health Science Center, 858 Madison Avenue, Memphis, TN 38163, USA
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Jones BG, Sealy RE, Rudraraju R, Traina-Dorge VL, Finneyfrock B, Cook A, Takimoto T, Portner A, Hurwitz JL. Corrigendum to “Sendai virus-based RSV vaccine protects African green monkeys from RSV infection” [Vaccine 30 (5) (2012) 959–968]. Vaccine 2012. [DOI: 10.1016/j.vaccine.2012.09.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Surman SL, Rudraraju R, Sealy R, Jones B, Hurwitz JL. Vitamin A deficiency disrupts vaccine-induced antibody-forming cells and the balance of IgA/IgG isotypes in the upper and lower respiratory tract. Viral Immunol 2012; 25:341-4. [PMID: 22813425 DOI: 10.1089/vim.2012.0023] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Vaccination by intranasal (IN) inoculation with a replication-competent virus forms the basis of licensed and novel candidate respiratory viral vaccines (e.g., the cold-adapted influenza virus vaccine). A positive global impact of vaccination depends on vaccine efficacy in developing countries where dietary deficiencies are commonplace. The current study was designed using Sendai virus (SeV) as a model respiratory viral vaccine to test antibody-forming cell (AFC) residence and isotype expression in the context of a vitamin A deficiency (VAD). Samples were taken 1 mo after vaccination when AFCs generally reach their peak in healthy animals. In control animals on a healthy diet, SeV induced an antibody response with a relative bias toward IgA in the upper respiratory tract (URT, as sampled by nasal wash), and IgG in the lower respiratory tract (LRT, as sampled by bronchoalveolar lavage [BAL]). In the context of VAD, the SeV-specific IgA antibodies in the nasal wash were significantly reduced in favor of enhanced IgG antibodies in the BAL. When AFCs were examined in diffuse nasal-associated lymphoid tissues (d-NALT), lungs, cervical lymph nodes (CLN), and mediastinal lymph nodes (MLN), a similar pattern emerged. AFCs were most frequent in the d-NALT and most expressed IgA in control mice. In the context of VAD, these IgA-producing AFCs were significantly reduced in number, skewing the natural balance of IgA and IgG. Taken together, the results show that the VAD diet, which is well known for its association with immune defects in the gut, significantly alters AFC induction and isotype expression in the respiratory tract.
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Affiliation(s)
- Sherri L Surman
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, Tennessee 38105, USA
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Hurwitz J, Surman S, Jones B, Sealy R, Woodland D, Rudraraju R. Vitamin A deficiency alters antibody forming cell and CD8+ T cell responses following intranasal vaccination with a respiratory virus vaccine (105.9). The Journal of Immunology 2012. [DOI: 10.4049/jimmunol.188.supp.105.9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
Vitamin A deficiency (VAD) has profound effects on immune responses in the gut, but its influence on other mucosal sites is less well understood. Sendai virus (SeV) is a candidate human parainfluenza virus type I (hPIV-1) vaccine, and a candidate vaccine vector for other respiratory viruses. A single I.N. dose of SeV elicits a protective immune response against hPIV-1 within days after vaccination. To define the effect of VAD on responses toward SeV, we monitored antibody forming cells (AFC) and immunodominant CD8+ T cells in mice. VAD inhibited SeV-specific IgA producing AFCs in the upper respiratory tract (URT) and biased the AFC response in favor of IgG-producing cells in the lower respiratory tract (LRT). In contrast, there was a dramatic reduction of CD8+ T cell frequencies in the LRT airways of VAD animals. Responding CD8+ T cells exhibited unusually high CD103 expression. In both VAD and control mice, e-cadherin (the ligand for αE(CD103)β7) was well expressed in URT tissues, but was expressed only weakly in the LRT. Results support a working hypothesis that the high CD103 expression among responding T cells in VAD mice may enhance T cell entrapment by e-cadherin and inhibit cell egress into the LRT airway. Our results highlight the concept that VAD does not exclusively affect immune responses in the gut, but has dramatic influences on immune cell function and residence in the respiratory tract.
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Affiliation(s)
- Julia Hurwitz
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Sherri Surman
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Bart Jones
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - Robert Sealy
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
| | - David Woodland
- 2Keystone Symposia on Molecular and Cellular Biology, Keystone Symposia, Silverthorne, CO
| | - Rajeev Rudraraju
- 1Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN
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Jones BG, Sealy R, Rudraraju R, Traina-Dorge V, Finneyfrock B, Cook A, Takimoto T, Portner A, Hurwitz JL. Sendai virus-based RSV vaccine protects African green monkeys from RSV infection. Vaccine 2012; 30:959-68. [PMID: 22119594 PMCID: PMC3256274 DOI: 10.1016/j.vaccine.2011.11.046] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [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: 08/26/2011] [Revised: 11/08/2011] [Accepted: 11/11/2011] [Indexed: 12/22/2022]
Abstract
Respiratory syncytial virus (RSV) is a serious disease of children, responsible for an estimated 160,000 deaths per year worldwide. Despite the ongoing need for global prevention of RSV and decades of research, there remains no licensed vaccine. Sendai virus (SeV) is a mouse parainfluenza virus-type 1 which has been previously shown to confer protection against its human cousin, human parainfluenza virus-type 1 in African green monkeys (AGM). Here is described the study of a RSV vaccine (SeVRSV), produced by reverse genetics technology using SeV as a backbone to carry the full-length gene for RSV F. To test for immunogenicity, efficacy and safety, the vaccine was administered to AGM by intratracheal (i.t.) and intranasal (i.n.) routes. Control animals received the empty SeV vector or PBS. There were no booster immunizations. SeV and SeVRSV were cleared from the URT and LRT of vaccinated animals by day 10. Antibodies with specificities toward SeV and RSV were detected in SeVRSV primed animals as early as day ten after immunizations in both sera and nasal wash samples. One month after immunization all test and control AGM received an i.n. challenge with RSV-A2. SeVRSV-vaccinated animals exhibited reduced RSV in the URT compared to controls, and complete protection against RSV in the LRT. There were no clinically relevant adverse events associated with vaccination either before or after challenge. These data encourage advanced testing of the SeVRSV vaccine candidate in clinical trials for protection against RSV.
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Affiliation(s)
- Bart G. Jones
- Departments of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN
| | - Robert Sealy
- Departments of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN
| | - Rajeev Rudraraju
- Departments of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN
| | | | | | | | - Toru Takimoto
- University of Rochester, School of Medicine and Dentistry 601 Elmwood Ave., Rochester, NY
| | - Allen Portner
- Departments of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN
| | - Julia L. Hurwitz
- Departments of Infectious Diseases, St. Jude Children’s Research Hospital, 262 Danny Thomas Place, Memphis, TN
- Department of Microbiology, Immunology and Biochemistry, University of Tennessee, Memphis, TN
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Surman SL, Rudraraju R, Woodland DL, Dash P, Thomas PG, Hurwitz JL. Clonally related CD8+ T cells responsible for rapid population of both diffuse nasal-associated lymphoid tissue and lung after respiratory virus infection. J Immunol 2011; 187:835-41. [PMID: 21690324 DOI: 10.4049/jimmunol.1100125] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The immune system has evolved to use sophisticated mechanisms to recruit lymphocytes to sites of pathogen exposure. Trafficking pathways are precise. For example, lymphocytes that are primed by gut pathogens can, in some cases, be imprinted with CCR9 membrane receptors, which can influence migration to the small intestine. Currently, little is known about T cell trafficking to the upper respiratory tract or the relationship between effectors that migrate to the diffuse nasal-associated lymphoid tissue (d-NALT), the lower airways, and the lung. To determine whether a T cell primed by Ag from a respiratory pathogen is imprinted for exclusive trafficking to the upper or lower respiratory tract or whether descendents from that cell have the capacity to migrate to both sites, we inoculated mice by the intranasal route with Sendai virus and conducted single-cell-sequencing analyses of CD8(+) T lymphocytes responsive to a K(b)-restricted immunodominant peptide, FAPGNYPAL (Tet(+)). Cells from the d-NALT, lung airways (bronchoalveolar lavage), lung, and mediastinal lymph node were examined 10 d postinfection to determine TCR usage and clonal relationships. We discovered that 1) Tet(+) cells were heterogeneous but preferentially used TCR elements TRAV6, TRAV16, and TRBD1; 2) both N and C termini of Vα and Vβ TCR junctions frequently encompassed charged residues, perhaps facilitating TCR αβ pairing and interactions with a neutral target peptide; and 3) T cells in the d-NALT were often clonally related to cells in the lower respiratory tract.
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Affiliation(s)
- Sherri L Surman
- Department of Infectious Diseases, St. Jude Children's Research Hospital, Memphis, TN 38105, USA
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Rudraraju R, Ramsay AJ. Single-shot immunization with recombinant adenovirus encoding vaccinia virus glycoprotein A27L is protective against a virulent respiratory poxvirus infection. Vaccine 2010; 28:4997-5004. [PMID: 20653083 DOI: 10.1016/j.vaccine.2010.05.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Significant safety issues have emerged concerning the general use of DRYVAX vaccine. Vaccination with replication-defective recombinant adenovirus (rAd) vaccines may offer a safer and effective alternative to live vaccinia virus (VV) vaccination. Six individual poxvirus glycoproteins: A33R, A34R, A36R, B5R, A27L or L1R that are normally expressed on the surface of infectious vaccinia virus were encoded in rAd vaccines and tested in mice in this study. A single-shot intramuscular injection of rAd encoding A27L protected mice against a lethal intranasal challenge with VV at 4 weeks post-vaccination. By 10 weeks post-vaccination, a significant decrease in post-challenge morbidity was observed that correlated with potent neutralizing antibody responses and the emergence of specific polyfunctional T cell responses. The immunogenicity and protective efficacy of rAd-A27L immunization persisted for at least 35 weeks post-vaccination. This study is the first demonstration that a single-shot subunit vaccine encoding a poxvirus protein confers protection against the mortality and morbidity associated with poxvirus infection.
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Affiliation(s)
- Rajeev Rudraraju
- Gene Therapy Program, and Department of Microbiology, Immunology and Parasitology, Louisiana State University Health Sciences Center, New Orleans, LA 70112, USA
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Abraham M, Rudraraju R, Kannangai R, George K, Cherian T, Daniel D, Ramalingam S, Sridharan G. A pilot study on the seroprevalence of parvovirus B19 infection. Indian J Med Res 2002; 115:139-43. [PMID: 12239835] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023] Open
Abstract
BACKGROUND & OBJECTIVES Human parvovirus B 19 (PVB 19) causes aplastic crisis in children with congenital haemolytic anaemia, erythema infectiosum, abortion and stillbirth. Since data on PVB 19 prevalence is lacking in India, a pilot study was undertaken to estimate the prevalence of IgG antibody in children and adults. METHODS The samples were obtained from children attending our hospital and from volunteer blood donors, majority of whom were from south India. They included 45 children aged 1-5 yr, 39 aged 6-10 yr, 42 aged 11-15 yr and 100 healthy blood donors > 15 yr of age. Sera were tested for the presence of antibody to PVB 19 using a commercial enzyme immuno assay (EIA). RESULTS Of 226 samples tested, 113 (50%) were positive for PVB 19 IgG. The prevalence of antibody increased from 8.9 per cent at 1-5 yr to 70 per cent in those > 15 yr: the median age of infection was between 6 and 15 yr. Sex and domiciliary status did not have significant effect on the prevalence of antibody. The IgG antibody index increased significantly with age, suggesting repeated exposure to the virus. INTERPRETATION & CONCLUSION This seroprevalence study indicates that large numbers of individuals show exposure to PVB 19 virus. The exposure as indicated by IgG positivity is seen to increase with age. The IgG negative individuals may be considered to be at risk of developing infections due to PVB 19.
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Affiliation(s)
- Mary Abraham
- Department of Clinical Virology, Christian Medical College & Hospital, Vellore, India
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