1
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Kleij L, Bruder E, Raoux-Barbot D, Lejal N, Nevers Q, Deloizy C, Da Costa B, Legrand L, Barrey E, Chenal A, Pronost S, Delmas B, Dhorne-Pollet S. Genomic characterization of equine influenza A subtype H3N8 viruses by long read sequencing and functional analyses of the PB1-F2 virulence factor of A/equine/Paris/1/2018. Vet Res 2024; 55:36. [PMID: 38520035 PMCID: PMC10960481 DOI: 10.1186/s13567-024-01289-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2023] [Accepted: 02/16/2024] [Indexed: 03/25/2024] Open
Abstract
Equine influenza virus (EIV) remains a threat to horses, despite the availability of vaccines. Strategies to monitor the virus and prevent potential vaccine failure revolve around serological assays, RT-qPCR amplification, and sequencing the viral hemagglutinin (HA) and neuraminidase (NA) genes. These approaches overlook the contribution of other viral proteins in driving virulence. This study assesses the potential of long-read nanopore sequencing for fast and precise sequencing of circulating equine influenza viruses. Therefore, two French Florida Clade 1 strains, including the one circulating in winter 2018-2019 exhibiting more pronounced pathogenicity than usual, as well as the two currently OIE-recommended vaccine strains, were sequenced. Our results demonstrated the reliability of this sequencing method in generating accurate sequences. Sequence analysis of HA revealed a subtle antigenic drift in the French EIV strains, with specific substitutions, such as T163I in A/equine/Paris/1/2018 and the N188T mutation in post-2015 strains; both substitutions were in antigenic site B. Antigenic site E exhibited modifications in post-2018 strains, with the N63D substitution. Segment 2 sequencing also revealed that the A/equine/Paris/1/2018 strain encodes a longer variant of the PB1-F2 protein when compared to other Florida clade 1 strains (90 amino acids long versus 81 amino acids long). Further biological and biochemistry assays demonstrated that this PB1-F2 variant has enhanced abilities to abolish the mitochondrial membrane potential ΔΨm and permeabilize synthetic membranes. Altogether, our results highlight the interest in rapidly characterizing the complete genome of circulating strains with next-generation sequencing technologies to adapt vaccines and identify specific virulence markers of EIV.
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Affiliation(s)
- Lena Kleij
- Unité de Virologie et Immunologie Moléculaires, INRAE, UVSQ, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Elise Bruder
- Unité de Virologie et Immunologie Moléculaires, INRAE, UVSQ, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Dorothée Raoux-Barbot
- CNRS UMR 3528, Biochemistry of Macromolecular Interactions Unit, Department of Structural Biology and Chemistry, Institut Pasteur, Université Paris Cité, 75015, Paris, France
| | - Nathalie Lejal
- Unité de Virologie et Immunologie Moléculaires, INRAE, UVSQ, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Quentin Nevers
- Unité de Virologie et Immunologie Moléculaires, INRAE, UVSQ, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Charlotte Deloizy
- Unité de Virologie et Immunologie Moléculaires, INRAE, UVSQ, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Bruno Da Costa
- Unité de Virologie et Immunologie Moléculaires, INRAE, UVSQ, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Loïc Legrand
- LABÉO Frank Duncombe, 14280, Saint-Contest, France
- BIOTARGEN, Normandie Univ, UNICAEN, 14000, Caen, France
| | - Eric Barrey
- AgroParisTech, Unité de Génétique Animale et Biologie Intégrative, INRAE, Université Paris-Saclay, 78350, Jouy-en-Josas, France
| | - Alexandre Chenal
- CNRS UMR 3528, Biochemistry of Macromolecular Interactions Unit, Department of Structural Biology and Chemistry, Institut Pasteur, Université Paris Cité, 75015, Paris, France
| | - Stéphane Pronost
- LABÉO Frank Duncombe, 14280, Saint-Contest, France
- BIOTARGEN, Normandie Univ, UNICAEN, 14000, Caen, France
| | - Bernard Delmas
- Unité de Virologie et Immunologie Moléculaires, INRAE, UVSQ, Université Paris-Saclay, 78350, Jouy-en-Josas, France.
| | - Sophie Dhorne-Pollet
- AgroParisTech, Unité de Génétique Animale et Biologie Intégrative, INRAE, Université Paris-Saclay, 78350, Jouy-en-Josas, France
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2
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Franzi E, Mathez G, Dinant S, Deloizy C, Kaiser L, Tapparel C, Le Goffic R, Cagno V. Non-Steroidal Estrogens Inhibit Influenza Virus by Interacting with Hemagglutinin and Preventing Viral Fusion. Int J Mol Sci 2023; 24:15382. [PMID: 37895062 PMCID: PMC10607366 DOI: 10.3390/ijms242015382] [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: 09/29/2023] [Revised: 10/16/2023] [Accepted: 10/17/2023] [Indexed: 10/29/2023] Open
Abstract
Influenza virus is one of the main causes of respiratory infections worldwide. Despite the availability of seasonal vaccines and antivirals, influenza virus infections cause an important health and economic burden. Therefore, the need to identify alternative antiviral strategies persists. In this study, we identified non-steroidal estrogens as potent inhibitors of influenza virus due to their interaction with the hemagglutinin protein, preventing viral entry. This activity is maintained in vitro, ex vivo, and in vivo. Therefore, we found a new domain to target on the hemagglutinin and a class of compounds that could be further optimized for influenza treatment.
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Affiliation(s)
- Elisa Franzi
- Institute of Microbiology, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Gregory Mathez
- Institute of Microbiology, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
| | - Soraya Dinant
- INRAE, UVSQ, UMR892 VIM, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Charlotte Deloizy
- INRAE, UVSQ, UMR892 VIM, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Laurent Kaiser
- Laboratory of Virology, Division of Infectious Diseases and Division of Laboratory Medicine, University Hospitals of Geneva, University of Geneva, 1206 Geneva, Switzerland
- Center for Emerging Viruses, Geneva University Hospitals, 1205 Geneva, Switzerland
| | - Caroline Tapparel
- Department of Microbiology and Molecular Medicine, University of Geneva, 1206 Geneva, Switzerland
| | - Ronan Le Goffic
- INRAE, UVSQ, UMR892 VIM, Université Paris-Saclay, 78350 Jouy-en-Josas, France
| | - Valeria Cagno
- Institute of Microbiology, Lausanne University Hospital, University of Lausanne, 1011 Lausanne, Switzerland
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3
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Deloizy C, Fossum E, Barnier-Quer C, Urien C, Chrun T, Duval A, Codjovi M, Bouguyon E, Maisonnasse P, Hervé PL, Barc C, Boulesteix O, Pezant J, Chevalier C, Collin N, Dalod M, Bogen B, Bertho N, Schwartz-Cornil I. The anti-influenza M2e antibody response is promoted by XCR1 targeting in pig skin. Sci Rep 2017; 7:7639. [PMID: 28794452 PMCID: PMC5550447 DOI: 10.1038/s41598-017-07372-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 07/07/2017] [Indexed: 11/10/2022] Open
Abstract
XCR1 is selectively expressed on a conventional dendritic cell subset, the cDC1 subset, through phylogenetically distant species. The outcome of antigen-targeting to XCR1 may therefore be similar across species, permitting the translation of results from experimental models to human and veterinary applications. Here we evaluated in pigs the immunogenicity of bivalent protein structures made of XCL1 fused to the external portion of the influenza virus M2 proton pump, which is conserved through strains and a candidate for universal influenza vaccines. Pigs represent a relevant target of such universal vaccines as pigs can be infected by swine, human and avian strains. We found that cDC1 were the only cell type labeled by XCR1-targeted mCherry upon intradermal injection in pig skin. XCR1-targeted M2e induced higher IgG responses in seronegative and seropositive pigs as compared to non-targeted M2e. The IgG response was less significantly enhanced by CpG than by XCR1 targeting, and CpG did not further increase the response elicited by XCR1 targeting. Monophosphoryl lipid A with neutral liposomes did not have significant effect. Thus altogether M2e-targeting to XCR1 shows promises for a trans-species universal influenza vaccine strategy, possibly avoiding the use of classical adjuvants.
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Affiliation(s)
- Charlotte Deloizy
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France.,GenoSafe, 1 bis rue de l'International, 91000, Evry, France
| | - Even Fossum
- K.G. Jebsen Center for Influenza Vaccine Research, University of Oslo and Oslo University Hospital, 0027, Oslo, Norway
| | - Christophe Barnier-Quer
- Vaccine Formulation Laboratory, University of Lausanne, Chemin des Boveresses 155, 1066, Epalinges, Switzerland
| | - Céline Urien
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
| | - Tiphany Chrun
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
| | - Audrey Duval
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France.,Biostatistics, Biomathematics, Pharmacoepidemiology and Infectious Diseases (B2PHI), Inserm, UVSQ, Institut Pasteur, Université Paris-Saclay, 78180, Montigny-le-Bretonneux, France
| | - Maelle Codjovi
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France.,Genfit, 885 Avenue Eugène Avinée, 59120, Loos, France
| | - Edwige Bouguyon
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
| | - Pauline Maisonnasse
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France.,CEA - Université Paris Sud 11 - INSERM U1184, Immunology of Viral infections and Autoimmune Diseases (IMVA), IDMIT infrastructure, 92265 Fontenay-aux-Roses, France
| | - Pierre-Louis Hervé
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France.,DBV Technologies, 177-181 avenue Pierre Brossolette, 92120, Montrouge, France
| | - Céline Barc
- UE1277-INRA, Plate-Forme d'Infectiologie Expérimentale - PFIE, 37380, Nouzilly, France
| | - Olivier Boulesteix
- UE1277-INRA, Plate-Forme d'Infectiologie Expérimentale - PFIE, 37380, Nouzilly, France
| | - Jérémy Pezant
- UE1277-INRA, Plate-Forme d'Infectiologie Expérimentale - PFIE, 37380, Nouzilly, France
| | - Christophe Chevalier
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
| | - Nicolas Collin
- Vaccine Formulation Laboratory, University of Lausanne, Chemin des Boveresses 155, 1066, Epalinges, Switzerland
| | - Marc Dalod
- Aix Marseille Univ, CNRS, INSERM, CIML, Centre d'Immunologie de Marseille-Luminy, 13288, Marseille, France
| | - Bjarne Bogen
- K.G. Jebsen Center for Influenza Vaccine Research, University of Oslo and Oslo University Hospital, 0027, Oslo, Norway.,Center for Immune Regulation, Institute of Immunology, University of Oslo and Oslo University Hospital Rikshospitalet, 0424, Oslo, Norway
| | - Nicolas Bertho
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
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4
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Bernelin-Cottet C, Deloizy C, Stanek O, Barc C, Bouguyon E, Urien C, Boulesteix O, Pezant J, Richard CA, Moudjou M, Costa BD, Jouneau L, Chevalier C, Leclerc C, Sebo P, Bertho N, Schwartz-Cornil I. Corrigendum: A Universal Influenza Vaccine Can Lead to Disease Exacerbation or Viral Control Depending on Delivery Strategies. Front Immunol 2017; 8:831. [PMID: 28740498 PMCID: PMC5513945 DOI: 10.3389/fimmu.2017.00831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 06/30/2017] [Indexed: 11/13/2022] Open
Abstract
[This corrects the article on p. 641 in vol. 7, PMID: 28082980.].
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Affiliation(s)
| | | | - Ondrej Stanek
- Institute of Microbiology of the Czech Academy of Sciences, v.v.i, Prague, Czech Republic
| | - Céline Barc
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale PFIE, Nouzilly, France
| | | | - Céline Urien
- VIM-INRA-Université Paris-Saclay, Jouy-en-Josas, France
| | - Olivier Boulesteix
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale PFIE, Nouzilly, France
| | - Jérémy Pezant
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale PFIE, Nouzilly, France
| | | | | | | | - Luc Jouneau
- VIM-INRA-Université Paris-Saclay, Jouy-en-Josas, France
| | | | - Claude Leclerc
- Institut Pasteur, Unité de Régulation Immunitaire et Vaccinologie, Equipe Labellisée Ligue Contre le Cancer, Paris, France.,INSERM U1041, Unité de Régulation Immunitaire et Vaccinologie, Département Immunologie, Paris, France
| | - Peter Sebo
- Institute of Microbiology of the Czech Academy of Sciences, v.v.i, Prague, Czech Republic
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5
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Hervé PL, Descamps D, Deloizy C, Dhelft V, Laubreton D, Bouguyon E, Benhamou PH, Sampson HA, Eléouët JF, Bertho N, Mondoulet L, Riffault S. Preclinical Evaluation of a Novel Non-Invasive Epicutaneous Vaccine Against Respiratory Syncytial Virus. J Allergy Clin Immunol 2017. [DOI: 10.1016/j.jaci.2016.12.604] [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: 10/20/2022]
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6
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Maisonnasse P, Bouguyon E, Bourge M, Piton G, Ezquerra A, Deloizy C, Urien C, Leplat JJ, Simon G, Chevalier C, Vincent-Naulleau S, Crisci E, Montoya M, Schwartz-Cornil I, Bertho N. Pig as a biomedical model: Putting the porcine lung dendritic cells/macrophages network into light. Rev Mal Respir 2017. [DOI: 10.1016/j.rmr.2016.10.867] [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: 11/29/2022]
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7
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Bernelin-Cottet C, Deloizy C, Stanek O, Barc C, Bouguyon E, Urien C, Boulesteix O, Pezant J, Richard CA, Moudjou M, Da Costa B, Jouneau L, Chevalier C, Leclerc C, Sebo P, Bertho N, Schwartz-Cornil I. A Universal Influenza Vaccine Can Lead to Disease Exacerbation or Viral Control Depending on Delivery Strategies. Front Immunol 2016; 7:641. [PMID: 28082980 PMCID: PMC5183740 DOI: 10.3389/fimmu.2016.00641] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2016] [Accepted: 12/12/2016] [Indexed: 12/24/2022] Open
Abstract
The development of influenza A virus (IAV) vaccines, which elicits cross-strain immunity against seasonal and pandemic viruses is a major public health goal. As pigs are susceptible to human, avian, and swine-adapted IAV, they would be key targets of so called universal IAV vaccines, for reducing both the zoonotic risk and the economic burden in the swine industry. They also are relevant preclinical models. However, vaccination with conserved IAV antigens (AGs) in pigs was reported to elicit disease exacerbation. In this study, we assessed whether delivery strategies, i.e., dendritic cell (DC) targeting by the intradermal (ID) or intramuscular (IM) routes, impact on the outcome of the vaccination with three conserved IAV AGs (M2e, NP, and HA2) in pigs. The AGs were addressed to CD11c by non-covalent binding to biotinylated anti-CD11c monoclonal antibody. The CD11c-targeted AGs given by the ID route exacerbated disease. Conversely, CD11c-targeted NP injected by the IM route promoted T cell response compared to non-targeted NP. Furthermore, the conserved IAV AGs injected by the IM route, independently of DC targeting, induced both a reduction of viral shedding and a broader IgG response as compared to the ID route. Our findings highlight in a relevant animal species that the route of vaccine delivery impacts on the protection induced by conserved IAV AGs and on vaccine adverse effects. Finally, our results indicate that HA2 stands as the most promising conserved IAV AG for universal vaccine development.
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Affiliation(s)
| | | | - Ondrej Stanek
- Institute of Microbiology of the Czech Academy of Sciences, v.v.i , Prague , Czech Republic
| | - Céline Barc
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale, PFIE , Nouzilly , France
| | | | - Céline Urien
- VIM-INRA-Université Paris-Saclay , Jouy-en-Josas , France
| | - Olivier Boulesteix
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale, PFIE , Nouzilly , France
| | - Jérémy Pezant
- INRA, UE1277, Plate-Forme d'Infectiologie Expérimentale, PFIE , Nouzilly , France
| | | | | | - Bruno Da Costa
- VIM-INRA-Université Paris-Saclay , Jouy-en-Josas , France
| | - Luc Jouneau
- VIM-INRA-Université Paris-Saclay , Jouy-en-Josas , France
| | | | - Claude Leclerc
- Institut Pasteur, Unité de Régulation Immunitaire et Vaccinologie, Equipe Labellisée Ligue Contre le Cancer, Paris, France; INSERM U1041, Unité de Régulation Immunitaire et Vaccinologie, Département Immunologie, Paris, France
| | - Peter Sebo
- Institute of Microbiology of the Czech Academy of Sciences, v.v.i , Prague , Czech Republic
| | - Nicolas Bertho
- VIM-INRA-Université Paris-Saclay , Jouy-en-Josas , France
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8
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Deloizy C, Bouguyon E, Fossum E, Sebo P, Osicka R, Bole A, Pierres M, Biacchesi S, Dalod M, Bogen B, Bertho N, Schwartz-Cornil I. Expanding the tools for identifying mononuclear phagocyte subsets in swine: Reagents to porcine CD11c and XCR1. Dev Comp Immunol 2016; 65:31-40. [PMID: 27345169 DOI: 10.1016/j.dci.2016.06.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 06/19/2016] [Accepted: 06/19/2016] [Indexed: 06/06/2023]
Abstract
Pig is a domestic species of major importance in the agro-economy and in biomedical research. Mononuclear phagocytes (MNP) are organized in subsets with specialized roles in the orchestration of the immune response and new tools are awaited to improve MNP subset identification in the pig. We cloned pig CD11c cDNA and generated a monoclonal antibody to pig CD11c which showed a pattern of expression by blood and skin MNP subsets similar to humans. We also developed a porcine XCL1-mCherry dimer which specifically reacted with the XCR1-expressing dendritic cell subset of the type 1 lineage in blood and skin. These original reagents will allow the efficient identification of pig MNP subsets to study their role in physiological and pathological processes and also to target these cells in novel intervention and vaccine strategies for veterinary applications and preclinical evaluations.
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Affiliation(s)
- Charlotte Deloizy
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
| | - Edwige Bouguyon
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
| | - Even Fossum
- K.G. Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, 0027, Oslo, Norway
| | - Peter Sebo
- Institute of Microbiology of the Czech Academy of Sciences, v.v.i., 142 20, Prague, Czech Republic
| | - Radim Osicka
- Institute of Microbiology of the Czech Academy of Sciences, v.v.i., 142 20, Prague, Czech Republic
| | - Angélique Bole
- MI-mAbs, Parc Scientifique et Technologique de Luminy, Case 906, F13288, Marseille Cedex 9, France
| | - Michel Pierres
- MI-mAbs, Parc Scientifique et Technologique de Luminy, Case 906, F13288, Marseille Cedex 9, France
| | - Stéphane Biacchesi
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
| | - Marc Dalod
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université UM2, Inserm, U1104, CNRS UMR7280, 13288, Marseille, France
| | - Bjarne Bogen
- K.G. Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, 0027, Oslo, Norway; Center for Immune Regulation, Institute of Immunology, University of Oslo and Oslo University Hospital Rikshospitalet, 0424, Oslo, Norway
| | - Nicolas Bertho
- VIM-INRA-Université Paris-Saclay, Domaine de Vilvert, 78350, Jouy-en-Josas, France
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9
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Hervé PL, Descamps D, Deloizy C, Dhelft V, Laubreton D, Bouguyon E, Boukadiri A, Dubuquoy C, Larcher T, Benhamou PH, Eléouët JF, Bertho N, Mondoulet L, Riffault S. Non-invasive epicutaneous vaccine against Respiratory Syncytial Virus: Preclinical proof of concept. J Control Release 2016; 243:146-159. [DOI: 10.1016/j.jconrel.2016.10.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 10/03/2016] [Accepted: 10/04/2016] [Indexed: 11/29/2022]
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10
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Hervé PL, Deloizy C, Descamps D, Rameix-Welti MA, Fix J, McLellan JS, Eléouët JF, Riffault S. RSV N-nanorings fused to palivizumab-targeted neutralizing epitope as a nanoparticle RSV vaccine. Nanomedicine 2016; 13:411-420. [PMID: 27553073 DOI: 10.1016/j.nano.2016.08.006] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 07/21/2016] [Accepted: 08/03/2016] [Indexed: 01/01/2023]
Abstract
Respiratory syncytial virus (RSV) is the leading cause of acute respiratory infections in children, yet no vaccine is available. The sole licensed preventive treatment against RSV is composed of a monoclonal neutralizing antibody (palivizumab), which targets a conformational epitope located on the fusion protein (F). Palivizumab reduces the burden of bronchiolitis but does not prevent infection. Thus, the development of RSV vaccines remains a priority. We previously evaluated nanorings formed by RSV nucleoprotein (N) as an RSV vaccine, as well as an immunostimulatory carrier for heterologous antigens. Here, we linked the palivizumab-targeted epitope (called FsII) to N, to generate N-FsII-nanorings. Intranasal N-FsII immunization elicited anti-F antibodies in mice that were non-neutralizing in vitro. Nevertheless, RSV-challenged animals were better protected against virus replication than mice immunized with N-nanorings, especially in the upper airways. In conclusion, an N-FsII-focused vaccine is an attractive candidate combining N-specific cellular immunity and F-specific antibodies for protection.
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Affiliation(s)
| | | | | | - Marie-Anne Rameix-Welti
- INSERM U1173, UFR Simone Veil, UVSQ, Saint-Quentin en Yvelines, France; AP-HP, Ambroise Paré Hospital, Microbiology Laboratory, Boulogne-Billancourt, France
| | - Jenna Fix
- VIM, INRA, Université Paris-Saclay, Jouy-en-Josas, France
| | - Jason S McLellan
- Department of Biochemistry, Geisel School of Medicine at Dartmouth, Hanover, NH, USA
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11
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Maisonnasse P, Bouguyon E, Piton G, Ezquerra A, Urien C, Deloizy C, Bourge M, Leplat JJ, Simon G, Chevalier C, Vincent-Naulleau S, Crisci E, Montoya M, Schwartz-Cornil I, Bertho N. The respiratory DC/macrophage network at steady-state and upon influenza infection in the swine biomedical model. Mucosal Immunol 2016; 9:835-49. [PMID: 26530136 DOI: 10.1038/mi.2015.105] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Accepted: 08/12/2015] [Indexed: 02/04/2023]
Abstract
Human and mouse respiratory tracts show anatomical and physiological differences, which will benefit from alternative experimental models for studying many respiratory diseases. Pig has been recognized as a valuable biomedical model, in particular for lung transplantation or pathologies such as cystic fibrosis and influenza infection. However, there is a lack of knowledge about the porcine respiratory immune system. Here we segregated and studied six populations of pig lung dendritic cells (DCs)/macrophages (Mθs) as follows: conventional DCs (cDC) 1 and cDC2, inflammatory monocyte-derived DCs (moDCs), monocyte-derived Mθs, and interstitial and alveolar Mθs. The three DC subsets present migratory and naive T-cell stimulation capacities. As observed in human and mice, porcine cDC1 and cDC2 were able to induce T-helper (Th)1 and Th2 responses, respectively. Interestingly, porcine moDCs increased in the lung upon influenza infection, as observed in the mouse model. Pig cDC2 shared some characteristics observed in human but not in mice, such as the expression of FCɛRIα and Langerin, and an intra-epithelial localization. This work, by unraveling the extended similarities of the porcine and human lung DC/Mθ networks, highlights the relevance of pig, both as an exploratory model of DC/Mθ functions and as a model for human inflammatory lung pathologies.
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Affiliation(s)
- P Maisonnasse
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique, Jouy-en-Josas, France
| | - E Bouguyon
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique, Jouy-en-Josas, France
| | - G Piton
- INRA, UMR Génétique Animale et Biologie Intégrative (GABI), Equipe Génétique Immunité Santé, Jouy-en-Josas, France.,Laboratoire de Radiobiologie et Etude du genome, CEA, Direction des Sciences du Vivant, Institut de Radiobiologie Cellulaire et Moléculaire, Jouy-en-Josas, France
| | - A Ezquerra
- Dpto. de Biotecnología, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Madrid, Spain
| | - C Urien
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique, Jouy-en-Josas, France
| | - C Deloizy
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique, Jouy-en-Josas, France
| | - M Bourge
- I2BC, Centre National de la Recherche Scientifique, Gif-sur-Yvette, France
| | - J-J Leplat
- INRA, UMR Génétique Animale et Biologie Intégrative (GABI), Equipe Génétique Immunité Santé, Jouy-en-Josas, France.,Laboratoire de Radiobiologie et Etude du genome, CEA, Direction des Sciences du Vivant, Institut de Radiobiologie Cellulaire et Moléculaire, Jouy-en-Josas, France
| | - G Simon
- Anses, Laboratoire de Ploufragan/Plouzané, Unité Virologie Immunologie Porcines, BP53, Ploufragan, France.,Université Européenne de Bretagne, Rennes, France
| | - C Chevalier
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique, Jouy-en-Josas, France
| | - S Vincent-Naulleau
- INRA, UMR Génétique Animale et Biologie Intégrative (GABI), Equipe Génétique Immunité Santé, Jouy-en-Josas, France.,Laboratoire de Radiobiologie et Etude du genome, CEA, Direction des Sciences du Vivant, Institut de Radiobiologie Cellulaire et Moléculaire, Jouy-en-Josas, France
| | - E Crisci
- Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain
| | - M Montoya
- Centre de Recerca en Sanitat Animal (CReSA), UAB-IRTA, Campus de la Universitat Autònoma de Barcelona, Bellaterra (Cerdanyola del Vallès), Spain.,The Pirbright Institute, Surrey, UK
| | - I Schwartz-Cornil
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique, Jouy-en-Josas, France
| | - N Bertho
- Virologie et Immunologie Moléculaires UR892, Institut National de la Recherche Agronomique, Jouy-en-Josas, France
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