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Sanchez MV, Ebensen T, Schulze K, Cargnelutti DE, Scodeller EA, Guzmán CA. Protective Efficacy of a Mucosal Influenza Vaccine Formulation Based on the Recombinant Nucleoprotein Co-Administered with a TLR2/6 Agonist BPPcysMPEG. Pharmaceutics 2023; 15:pharmaceutics15030912. [PMID: 36986773 PMCID: PMC10057018 DOI: 10.3390/pharmaceutics15030912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/24/2023] [Accepted: 03/03/2023] [Indexed: 03/16/2023] Open
Abstract
Current influenza vaccines target highly variable surface glycoproteins; thus, mismatches between vaccine strains and circulating strains often diminish vaccine protection. For this reason, there is still a critical need to develop effective influenza vaccines able to protect also against the drift and shift of different variants of influenza viruses. It has been demonstrated that influenza nucleoprotein (NP) is a strong candidate for a universal vaccine, which contributes to providing cross-protection in animal models. In this study, we developed an adjuvanted mucosal vaccine using the recombinant NP (rNP) and the TLR2/6 agonist S-[2,3-bispalmitoyiloxy-(2R)-propyl]-R-cysteinyl-amido-monomethoxyl-poly-ethylene-glycol (BPPcysMPEG). The vaccine efficacy was compared with that observed following parenteral vaccination of mice with the same formulation. Mice vaccinated with 2 doses of rNP alone or co-administered with BPPcysMPEG by the intranasal (i.n.) route showed enhanced antigen-specific humoral and cellular responses. Moreover, NP-specific humoral immune responses, characterized by significant NP-specific IgG and IgG subclass titers in sera and NP-specific IgA titers in mucosal territories, were remarkably increased in mice vaccinated with the adjuvanted formulation as compared with those of the non-adjuvanted vaccination group. The addition of BPPcysMPEG also improved NP-specific cellular responses in vaccinated mice, characterized by robust lymphoproliferation and mixed Th1/Th2/Th17 immune profiles. Finally, it is notable that the immune responses elicited by the novel formulation administered by the i.n. route were able to confer protection against the influenza H1N1 A/Puerto Rico/8/1934 virus.
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Affiliation(s)
- Maria Victoria Sanchez
- Laboratorio de Inmunología y Desarrollo de Vacunas, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CCT-CONICET, Universidad Nacional de Cuyo, Mendoza M5500, Argentina; (M.V.S.); (D.E.C.); (E.A.S.)
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (T.E.); (K.S.)
| | - Thomas Ebensen
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (T.E.); (K.S.)
| | - Kai Schulze
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (T.E.); (K.S.)
| | - Diego Esteban Cargnelutti
- Laboratorio de Inmunología y Desarrollo de Vacunas, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CCT-CONICET, Universidad Nacional de Cuyo, Mendoza M5500, Argentina; (M.V.S.); (D.E.C.); (E.A.S.)
| | - Eduardo A. Scodeller
- Laboratorio de Inmunología y Desarrollo de Vacunas, Instituto de Medicina y Biología Experimental de Cuyo (IMBECU), CCT-CONICET, Universidad Nacional de Cuyo, Mendoza M5500, Argentina; (M.V.S.); (D.E.C.); (E.A.S.)
| | - Carlos A. Guzmán
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, 38124 Braunschweig, Germany; (T.E.); (K.S.)
- Correspondence: ; Tel.: +49-531-61814600; Fax: +49-531-618414699
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Ullah S, Ross TM. Next generation live-attenuated influenza vaccine platforms. Expert Rev Vaccines 2022; 21:1097-1110. [PMID: 35502639 DOI: 10.1080/14760584.2022.2072301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION Influenza virus is a major cause of seasonal epidemics and intermittent pandemics. Despite the current molecular biology and vaccine development, influenza virus infection is a significant burden. Vaccines are considered an essential countermeasure for effective control and prevention of influenza virus infection. Even though current influenza virus vaccines provide efficient protection against seasonal influenza outbreaks, the efficacy of these vaccines is not suitable due to antigenic changes of the viruses. AREAS COVERED This review focuses on different live-attenuated platforms for influenza virus vaccine development and proposes essential considerations for a rational universal influenza virus vaccine design. EXPERT OPINION Despite the recent efforts for universal influenza virus vaccines, there is a lack of broadly reactive antibodies' induction that can confer broad and long-lasting protection. Various strategies using live-attenuated influenza virus vaccines (LAIVs) are investigated to induce broadly reactive, durable, and cross-protective immune responses. LAIVs based on NS segment truncation prevent influenza virus infection and have shown to be effective vaccine candidates among other vaccine platforms. Although many approaches have been used for LAIVs generation, there is still a need to focus on the LAIVs development platforms to generate a universal influenza virus vaccine candidate.
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Affiliation(s)
- Subhan Ullah
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, USA
| | - Ted M Ross
- Center for Vaccines and Immunology, University of Georgia, Athens, Georgia, USA.,Department of Infectious Diseases, University of Georgia, Athens, Georgia, USA
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Chen J, Wang J, Zhang J, Ly H. Advances in Development and Application of Influenza Vaccines. Front Immunol 2021; 12:711997. [PMID: 34326849 PMCID: PMC8313855 DOI: 10.3389/fimmu.2021.711997] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Accepted: 06/24/2021] [Indexed: 12/24/2022] Open
Abstract
Influenza A virus is one of the most important zoonotic pathogens that can cause severe symptoms and has the potential to cause high number of deaths and great economic loss. Vaccination is still the best option to prevent influenza virus infection. Different types of influenza vaccines, including live attenuated virus vaccines, inactivated whole virus vaccines, virosome vaccines, split-virion vaccines and subunit vaccines have been developed. However, they have several limitations, such as the relatively high manufacturing cost and long production time, moderate efficacy of some of the vaccines in certain populations, and lack of cross-reactivity. These are some of the problems that need to be solved. Here, we summarized recent advances in the development and application of different types of influenza vaccines, including the recent development of viral vectored influenza vaccines. We also described the construction of other vaccines that are based on recombinant influenza viruses as viral vectors. Information provided in this review article might lead to the development of safe and highly effective novel influenza vaccines.
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Affiliation(s)
- Jidang Chen
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Jiehuang Wang
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Jipei Zhang
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Hinh Ly
- Department of Veterinary & Biomedical Sciences, University of Minnesota, Twin Cities, MN, United States
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Generation of DelNS1 Influenza Viruses: a Strategy for Optimizing Live Attenuated Influenza Vaccines. mBio 2019; 10:mBio.02180-19. [PMID: 31530680 PMCID: PMC6751066 DOI: 10.1128/mbio.02180-19] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Current seasonal influenza vaccines are suboptimal and low in immunogenicity and do not provide long-lasting immunity and cross protection against influenza virus strains that have antigenically drifted. More-effective influenza vaccines which can induce both humoral immunity and T cell immunity are needed. The NS1 protein of influenza virus is a virulence element and the critical factor for regulation of the host immune response during virus infection. Deletion of the NS1 protein is a strategy to make an optimal LAIV vaccine. However, DelNS1 viruses are very difficult to grow in regular vaccine-producing systems, hampering the application of DelNS1 LAIV vaccines in humans. We have generated a panel of both influenza A and influenza B DelNS1 LAIVs which are able to grow in regular vaccine-producing cells. These DelNS1 LAIV vaccines are completely nonpathogenic, exhibit potent and long-lasting immunity, and can be used to express extra viral antigen to induce cross protective immunity against seasonal and emerging influenza. Nonstructural protein 1 (NS1) of influenza virus is a key virulence element with multifunctional roles in virus replication and a potent antagonist of host immune response. Deletion of NS1 (DelNS1) would create a safer and more extensively immunogenic live attenuated influenza virus (LAIV) vaccine. However, DelNS1 viruses are very difficult to grow in regular vaccine-producing systems, which has hampered the application of DelNS1 LAIV vaccines in humans. We have developed two master backbones of deleted-NS1 (DelNS1) viral genomes from influenza A or B viruses which contain novel adaptive mutations to support DelNS1-LAIV replication. These DelNS1-LAIVs are highly attenuated in human cells in vitro and nonpathogenic in mice but replicate well in vaccine-producing cells. Both influenza A and influenza B DelNS1 LAIVs grow better at 33°C than at 37 to 39°C. Vaccination with DelNS1 LAIV performed once is enough to provide potent protection against lethal challenge with homologous virus and strong long-lasting cross protection against heterosubtypic or antigenically distantly related influenza viruses in mice. Mechanistic investigations revealed that DelNS1-LAIVs induce cross protective neutralizing antibody and CD8+ and CD4+ T cell immunities. Importantly, it has been shown that DelNS1-LAIV can be used to enhance specific anti-influenza immunity through expression of additional antigens from the deleted-NS1 site. Generation of DelNS1 viruses which are nonpathogenic and able to grow in vaccine-producing systems is an important strategy for making highly immunogenic LAIV vaccines that induce broad cross protective immunity against seasonal and emerging influenza.
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Xie X, Zhao C, He Q, Qiu T, Yuan S, Ding L, Liu L, Jiang L, Wang J, Zhang L, Zhang C, Wang X, Zhou D, Zhang X, Xu J. Influenza Vaccine With Consensus Internal Antigens as Immunogens Provides Cross-Group Protection Against Influenza A Viruses. Front Microbiol 2019; 10:1630. [PMID: 31379782 PMCID: PMC6647892 DOI: 10.3389/fmicb.2019.01630] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 07/02/2019] [Indexed: 11/29/2022] Open
Abstract
Given that continuing antigenic shift and drift of influenza A viruses result in the escape from previous vaccine-induced immune protection, a universal influenza vaccine has been actively sought. However, there were very few vaccines capable of eliciting cross-group ant-influenza immunity. Here, we designed two novel composite immunogens containing highly conserved T-cell epitopes of six influenza A virus internal antigens, and expressed them in DNA, recombinant adenovirus-based (AdC68) and recombinant vaccinia vectors, respectively, to formulate three vaccine forms. The introduction of the two immunogens via a DNA priming and viral vectored vaccine boosting modality afforded cross-group protection from both PR8 and H7N9 influenza virus challenges in mice. Both respiratory residential and systemic T cells contributed to the protective efficacy. Intranasal but not intramuscular administration of AdC68 based vaccine was capable of raising both T cell subpopulations to confer a full protection from lethal PR8 and H7N9 challenges, and blocking the lymphatic egress of T cells during challenges attenuated the protection. Thus, by targeting highly conserved internal viral epitopes to efficiently generate both respiratory and systemic memory T cells, the sequential vaccination strategy reported here represented a new promising candidate for the development of T-cell based universal influenza vaccines.
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Affiliation(s)
- Xinci Xie
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Chen Zhao
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Qian He
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Tianyi Qiu
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Songhua Yuan
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Longfei Ding
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lu Liu
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Lang Jiang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jing Wang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Linxia Zhang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Chao Zhang
- Vaccine Research Center, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Xiang Wang
- Vaccine Research Center, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Dongming Zhou
- Vaccine Research Center, Key Laboratory of Molecular Virology and Immunology, Institut Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Xiaoyan Zhang
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
| | - Jianqing Xu
- Shanghai Public Health Clinical Center and Institutes of Biomedical Science, Shanghai Medical College, Fudan University, Shanghai, China
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Gerlach T, Elbahesh H, Saletti G, Rimmelzwaan GF. Recombinant influenza A viruses as vaccine vectors. Expert Rev Vaccines 2019; 18:379-392. [PMID: 30777467 DOI: 10.1080/14760584.2019.1582338] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
INTRODUCTION Various viruses, including poxviruses, adenoviruses and vesicular stomatitis virus, have been considered as vaccine vectors for the delivery of antigens of interest in the development of vaccines against newly emerging pathogens. AREAS COVERED Here, we review results that have been obtained with influenza A viruses (IAV) as vaccine vectors. With the advent of reverse genetics technology, IAV-based recombinant vaccine candidates have been constructed that induce protective immunity to a variety of different pathogens of interest, including West Nile virus, Plasmodium falciparum and respiratory syncytial virus. The various cloning strategies to produce effective and attenuated, safe to use IAV-based viral vectors are discussed. EXPERT COMMENTARY It was concluded that IAV-based vector system has several advantages and holds promise for further development.
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Affiliation(s)
- Thomas Gerlach
- a Research Center for Emerging Infections and Zoonoses (RIZ) , University of Veterinary Medicine Hannover (TiHo) , Hannover , Germany
| | - Husni Elbahesh
- a Research Center for Emerging Infections and Zoonoses (RIZ) , University of Veterinary Medicine Hannover (TiHo) , Hannover , Germany
| | - Giulietta Saletti
- a Research Center for Emerging Infections and Zoonoses (RIZ) , University of Veterinary Medicine Hannover (TiHo) , Hannover , Germany
| | - Guus F Rimmelzwaan
- a Research Center for Emerging Infections and Zoonoses (RIZ) , University of Veterinary Medicine Hannover (TiHo) , Hannover , Germany
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Blanco-Lobo P, Nogales A, Rodríguez L, Martínez-Sobrido L. Novel Approaches for The Development of Live Attenuated Influenza Vaccines. Viruses 2019; 11:E190. [PMID: 30813325 PMCID: PMC6409754 DOI: 10.3390/v11020190] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Revised: 02/19/2019] [Accepted: 02/19/2019] [Indexed: 01/04/2023] Open
Abstract
Influenza virus still represents a considerable threat to global public health, despite the advances in the development and wide use of influenza vaccines. Vaccination with traditional inactivate influenza vaccines (IIV) or live-attenuated influenza vaccines (LAIV) remains the main strategy in the control of annual seasonal epidemics, but it does not offer protection against new influenza viruses with pandemic potential, those that have shifted. Moreover, the continual antigenic drift of seasonal circulating influenza viruses, causing an antigenic mismatch that requires yearly reformulation of seasonal influenza vaccines, seriously compromises vaccine efficacy. Therefore, the quick optimization of vaccine production for seasonal influenza and the development of new vaccine approaches for pandemic viruses is still a challenge for the prevention of influenza infections. Moreover, recent reports have questioned the effectiveness of the current LAIV because of limited protection, mainly against the influenza A virus (IAV) component of the vaccine. Although the reasons for the poor protection efficacy of the LAIV have not yet been elucidated, researchers are encouraged to develop new vaccination approaches that overcome the limitations that are associated with the current LAIV. The discovery and implementation of plasmid-based reverse genetics has been a key advance in the rapid generation of recombinant attenuated influenza viruses that can be used for the development of new and most effective LAIV. In this review, we provide an update regarding the progress that has been made during the last five years in the development of new LAIV and the innovative ways that are being explored as alternatives to the currently licensed LAIV. The safety, immunogenicity, and protection efficacy profile of these new LAIVs reveal their possible implementation in combating influenza infections. However, efforts by vaccine companies and government agencies will be needed for controlled testing and approving, respectively, these new vaccine methodologies for the control of influenza infections.
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Affiliation(s)
- Pilar Blanco-Lobo
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, Rochester, New York, NY 14642, USA.
| | - Aitor Nogales
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, Rochester, New York, NY 14642, USA.
| | - Laura Rodríguez
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, Rochester, New York, NY 14642, USA.
| | - Luis Martínez-Sobrido
- Department of Microbiology and Immunology, School of Medicine and Dentistry, University of Rochester, Rochester, New York, NY 14642, USA.
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Elbahesh H, Saletti G, Gerlach T, Rimmelzwaan GF. Broadly protective influenza vaccines: design and production platforms. Curr Opin Virol 2019; 34:1-9. [DOI: 10.1016/j.coviro.2018.11.005] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Accepted: 11/07/2018] [Indexed: 01/04/2023]
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9
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Bernasconi V, Bernocchi B, Ye L, Lê MQ, Omokanye A, Carpentier R, Schön K, Saelens X, Staeheli P, Betbeder D, Lycke N. Porous Nanoparticles With Self-Adjuvanting M2e-Fusion Protein and Recombinant Hemagglutinin Provide Strong and Broadly Protective Immunity Against Influenza Virus Infections. Front Immunol 2018; 9:2060. [PMID: 30271406 PMCID: PMC6146233 DOI: 10.3389/fimmu.2018.02060] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 08/21/2018] [Indexed: 12/28/2022] Open
Abstract
Due to the high risk of an outbreak of pandemic influenza, the development of a broadly protective universal influenza vaccine is highly warranted. The design of such a vaccine has attracted attention and much focus has been given to nanoparticle-based influenza vaccines which can be administered intranasally. This is particularly interesting since, contrary to injectable vaccines, mucosal vaccines elicit local IgA and lung resident T cell immunity, which have been found to correlate with stronger protection in experimental models of influenza virus infections. Also, studies in human volunteers have indicated that pre-existing CD4+ T cells correlate well to increased resistance against infection. We have previously developed a fusion protein with 3 copies of the ectodomain of matrix protein 2 (M2e), which is one of the most explored conserved influenza A virus antigens for a broadly protective vaccine known today. To improve the protective ability of the self-adjuvanting fusion protein, CTA1-3M2e-DD, we incorporated it into porous maltodextrin nanoparticles (NPLs). This proof-of-principle study demonstrates that the combined vaccine vector given intranasally enhanced immune protection against a live challenge infection and reduced the risk of virus transmission between immunized and unimmunized individuals. Most importantly, immune responses to NPLs that also contained recombinant hemagglutinin (HA) were strongly enhanced in a CTA1-enzyme dependent manner and we achieved broadly protective immunity against a lethal infection with heterosubtypic influenza virus. Immune protection was mediated by enhanced levels of lung resident CD4+ T cells as well as anti-HA and -M2e serum IgG and local IgA antibodies.
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Affiliation(s)
- Valentina Bernasconi
- Mucosal Immunobiology and Vaccine Center, Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Beatrice Bernocchi
- Lille Inflammation Research International Center - U995, University of Lille, INSERM and CHU Lille, Lille, France
| | - Liang Ye
- Institute of Virology, University Medical Center Freiburg, Freiburg, Germany
| | - Minh Quan Lê
- Lille Inflammation Research International Center - U995, University of Lille, INSERM and CHU Lille, Lille, France
| | - Ajibola Omokanye
- Mucosal Immunobiology and Vaccine Center, Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Rodolphe Carpentier
- Lille Inflammation Research International Center - U995, University of Lille, INSERM and CHU Lille, Lille, France
| | - Karin Schön
- Mucosal Immunobiology and Vaccine Center, Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Xavier Saelens
- VIB-UGent Center for Medical Biotechnology, Ghent, Belgium.,Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Peter Staeheli
- Institute of Virology, University Medical Center Freiburg, Freiburg, Germany.,Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Didier Betbeder
- Lille Inflammation Research International Center - U995, University of Lille, INSERM and CHU Lille, Lille, France.,Faculté des Sciences du Sport, University of Artois, Arras, France
| | - Nils Lycke
- Mucosal Immunobiology and Vaccine Center, Department of Microbiology and Immunology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Editorial overview: Tough targets. Curr Opin Immunol 2018; 53:iv-vi. [DOI: 10.1016/j.coi.2018.08.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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