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Xu Y, Sun F, Chuai Z, Wang J, Bai Z, Bian C, Wang X, Zhao Z, Liu Y, Yang P. Cold-adapted influenza vaccine carrying three repeats of a respiratory syncytial virus (RSV) fusion glycoprotein epitope site protects BALB/c mice and cotton rats against RSV infection. Antiviral Res 2024; 229:105960. [PMID: 38986872 DOI: 10.1016/j.antiviral.2024.105960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 07/05/2024] [Accepted: 07/07/2024] [Indexed: 07/12/2024]
Abstract
Respiratory syncytial virus is the major cause of respiratory viral infections, particularly in infants, immunocompromised populations, and the elderly (over 65 years old), the prevention of RSV infection has become a priority. In this study, we generated a chimeric influenza virus, termed LAIV/RSV/HA-3F, using reverse genetics technology which contained three repeats of the RSV fusion protein neutralizing epitope site II to the N terminal in the background of the hemagglutinin (HA) gene of cold adapted influenza vaccine A/California/7/2009 ca. LAIV/RSV/HA-3F exhibited cold-adapted (ca) and attenuated (att) phenotype. BALB/c mice immunized intranasally with LAIV/RSV/HA-3F showed robust immunogenicity, inducing viral-specific antibody responses against both influenza and RSV, eliciting RSV-specific humoral, cellular and mucosal immune responses. LAIV/RSV/HA-3F also conferred protection as indicated by reduced viral titers and improved lung histopathological alterations against live RSV virus challenge. Mechanismly, single-cell RNA sequencing (scRNA-seq) and single-cell T cell antigen receptor (TCR) sequencing were employed to characterize the immune responses triggered by chimeric RSV vaccine, displaying that LAIV/RSV/HA-3F provided protection mainly via interferon-γ (IFN-γ). Moreover, we found that LAIV/RSV/HA-3F significantly inhibited viral replication in the challenged lung and protected against subsequent RSV challenge in cotton rats without causing lung disease. Taken together, our findings demonstrated that LAIV/RSV/HA-3F has potential as a promising bivalent vaccine with dual purpose candidate for the prevention of influenza and RSV, and preclinical and clinical studies warrant further investigations.
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Affiliation(s)
- Yongru Xu
- The First Medical Center of Chinese PLA General Hospital, Faculty of Hepato-Pancreato-Biliary Surgery, Institute of Hepatobiliary Surgery of Chinese PLA, Key Laboratory of Digital Hepatobiliary Surgery, PLA, Beijing, 100853, China
| | - Fang Sun
- The First Medical Center of Chinese PLA General Hospital, Faculty of Hepato-Pancreato-Biliary Surgery, Institute of Hepatobiliary Surgery of Chinese PLA, Key Laboratory of Digital Hepatobiliary Surgery, PLA, Beijing, 100853, China; Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, 100039, China
| | - Zhengran Chuai
- Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, 100039, China
| | - Junyun Wang
- Harbin GenVista Medical Laboratory Co., Ltd, Harbin, 150001, China; Heilongjiang Hulu Institute of Precision Medicine Co., Ltd, Harbin 150001, China
| | - Zhifang Bai
- Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, 100039, China
| | - Chengrong Bian
- Fifth Medical Center of Chinese PLA General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, 100039, China
| | - Xiliang Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Zhongpeng Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, 100071, China
| | - Yongzhuang Liu
- School of Computer Science and Technology, Harbin Institute of Technology, Harbin 150001, China
| | - Penghui Yang
- The First Medical Center of Chinese PLA General Hospital, Faculty of Hepato-Pancreato-Biliary Surgery, Institute of Hepatobiliary Surgery of Chinese PLA, Key Laboratory of Digital Hepatobiliary Surgery, PLA, Beijing, 100853, China.
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Xu Y, Sun F, Bai Z, Bian C, Wang X, Zhao Z, Yang P. Cold-adapted influenza-vectored RSV vaccine protects BALB/c mice and cotton rats from RSV challenge. J Med Virol 2024; 96:e29308. [PMID: 39007405 DOI: 10.1002/jmv.29308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 11/03/2023] [Accepted: 11/27/2023] [Indexed: 07/16/2024]
Abstract
Respiratory syncytial virus (RSV) remains the primary cause of lower respiratory tract infections, particularly in infants and the elderly. In this study, we employed reverse genetics to generate a chimeric influenza virus expressing neuraminidase-3F protein conjugate with three repeats of the RSV F protein protective epitope inserted into the NA gene of A/California/7/2009 ca (CA/AA ca), resulting in rFlu/RSV/NA-3F (hereafter, rFRN3). The expression of NA-3F protein was confirmed by Western blotting. The morphology and temperature-sensitive phenotype of rFRN3 were similar to CA/AA ca. Its immunogenicity and protective efficiency were evaluated in BALB/c mice and cotton rats. Intranasal administration of rFRN3 elicited robust humoral, cellular, and to some extent, mucosal immune responses. Compared to controls, rFRN3 protected animals from RSV infection, attenuated lung injury, and reduced viral titers in the nose and lungs post-RSV challenge. These results demonstrate that rFRN3 can trigger RSV-specific immune responses and thus exhibits potent protective efficacy. The "dual vaccine" approach of a cold-adapted influenza vector RSV vaccine will improve the prophylaxis of influenza and RSV infection. rFRN3 thus warrants further clinical investigations as a candidate RSV vaccine.
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Affiliation(s)
- Yongru Xu
- The First Medical Center of Chinese PLA General Hospital, Beijing, China
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
- Key Laboratory of Digital Hepatobiliary Surgery, PLA, Institute of Hepatobiliary Surgery of Chinese PLA, Beijing, China
| | - Fang Sun
- Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Zhifang Bai
- Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Chengrong Bian
- Fifth Medical Center of Chinese PLA General Hospital, Beijing, China
| | - Xiliang Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
| | - Zhongpeng Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China
| | - Penghui Yang
- The First Medical Center of Chinese PLA General Hospital, Beijing, China
- Faculty of Hepato-Pancreato-Biliary Surgery, Chinese PLA General Hospital, Beijing, China
- Key Laboratory of Digital Hepatobiliary Surgery, PLA, Institute of Hepatobiliary Surgery of Chinese PLA, Beijing, China
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Li J, Ding J, Chen K, Xu X, Shao Y, Zhang D, Yu X, Guo C, Qian J, Ding Z. Protective effects of a novel chimeric virus-like particle vaccine against virulent NDV and IBDV challenge. Vaccine 2024; 42:332-338. [PMID: 38065771 DOI: 10.1016/j.vaccine.2023.11.062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 11/26/2023] [Accepted: 11/29/2023] [Indexed: 01/01/2024]
Abstract
Newcastle disease (ND) and infectious bursal disease (IBD) pose significant threats to the chicken industry, causing substantial economic losses. Currently, immunization through vaccination is the most effective strategy to prevent ND and IBD but currently used traditional vaccines, including inactivated or attenuated vaccines, face challenges in achieving a balance between immunogenicity and safety. To develop a green and efficient novel vaccine for ND and IBD, we developed a bivalent chimeric virus-like particle vaccine (ND-IBD cVLPs) displaying the ND virus (NDV) HN protein and the IBD virus (IBDV) VP2 protein based on the ND VLPs carrier platform and insect baculovirus expression system. This study aimed to evaluate the immunogenicity and protective efficacy of ND-IBD cVLPs in specific pathogen-free chickens. Chickens were immunized with 50 µg of purified ND-IBD cVLPs at 7 days old, boosted at 21 days old, and challenged at 42 days old. The results demonstrated that ND-IBD cVLPs stimulated highly effective hemagglutination inhibition antibody levels against NDV HN protein and enzyme-linked immunosorbent assay antibody levels against the IBDV VP2 protein. Furthermore, ND-IBD cVLPs provided complete protection against virulent NDV and IBDV challenges and mitigated pathological damage to the lung caused by NDV infection and the bursa of Fabricius caused by IBDV infection. These findings suggest that ND-IBD cVLPs hold promise as a safe and efficient novel vaccine candidate for the effective prevention of ND and IBD, extending the development of a foreign protein delivery platform of ND VLPs.
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Affiliation(s)
- Jindou Li
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jiaxin Ding
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Kainan Chen
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xiaohong Xu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Yanan Shao
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Di Zhang
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Xibing Yu
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Chunhong Guo
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China
| | - Jing Qian
- Institute of Veterinary Medicine, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China.
| | - Zhuang Ding
- State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, College of Veterinary Medicine, Jilin University, Changchun 130062, China.
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Stephens LM, Ross KA, Waldstein KA, Legge KL, McLellan JS, Narasimhan B, Varga SM. Prefusion F-Based Polyanhydride Nanovaccine Induces Both Humoral and Cell-Mediated Immunity Resulting in Long-Lasting Protection against Respiratory Syncytial Virus. THE JOURNAL OF IMMUNOLOGY 2021; 206:2122-2134. [PMID: 33827894 DOI: 10.4049/jimmunol.2100018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Accepted: 02/19/2021] [Indexed: 11/19/2022]
Abstract
Respiratory syncytial virus (RSV) is a leading cause of lower respiratory tract infection in both young children and in older adults. Despite the morbidity, mortality, and high economic burden caused by RSV worldwide, no licensed vaccine is currently available. We have developed a novel RSV vaccine composed of a prefusion-stabilized variant of the fusion (F) protein (DS-Cav1) and a CpG oligodeoxynucleotide adjuvant encapsulated within polyanhydride nanoparticles, termed RSVNanoVax. A prime-boost intranasal administration of RSVNanoVax in BALB/c mice significantly alleviated weight loss and pulmonary dysfunction in response to an RSV challenge, with protection maintained up to at least 6 mo postvaccination. In addition, vaccinated mice exhibited rapid viral clearance in the lungs as early as 2 d after RSV infection in both inbred and outbred populations. Vaccination induced tissue-resident memory CD4 and CD8 T cells in the lungs, as well as RSV F-directed neutralizing Abs. Based on the robust immune response elicited and the high level of durable protection observed, our prefusion RSV F nanovaccine is a promising new RSV vaccine candidate.
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Affiliation(s)
- Laura M Stephens
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA
| | - Kathleen A Ross
- Department of Chemical and Biological Engineering, Iowa State University, Ames, IA.,Nanovaccine Institute, Ames, IA
| | - Kody A Waldstein
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA
| | - Kevin L Legge
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA.,Nanovaccine Institute, Ames, IA.,Department of Microbiology and Immunology, University of Iowa, Iowa City, IA.,Department of Pathology, University of Iowa, Iowa City, IA; and
| | - Jason S McLellan
- Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX
| | - Balaji Narasimhan
- Department of Chemical and Biological Engineering, Iowa State University, Ames, IA.,Nanovaccine Institute, Ames, IA
| | - Steven M Varga
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA; .,Nanovaccine Institute, Ames, IA.,Department of Microbiology and Immunology, University of Iowa, Iowa City, IA.,Department of Pathology, University of Iowa, Iowa City, IA; and
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5
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Lei L, Qin H, Luo J, Tan Y, Yang J, Pan Z. Construction and immunological evaluation of hepatitis B virus core virus-like particles containing multiple antigenic peptides of respiratory syncytial virus. Virus Res 2021; 298:198410. [PMID: 33819519 DOI: 10.1016/j.virusres.2021.198410] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Revised: 02/10/2021] [Accepted: 03/29/2021] [Indexed: 10/21/2022]
Abstract
Respiratory syncytial virus (RSV) infection causes severe disease in the lower respiratory tract of infants and young children. Currently, no licensed vaccine is available. In this study, we generated the chimeric virus-like particles (tHBc/FE1E2, tHBc/FE1E2/M282-90 and tHBc/FE1E2/M282-90/tG VLPs) containing multiple antigenic peptides of RSV proteins based on a truncated hepatitis B virus core carrier (tHBc). We investigated the immune protection against RSV infection induced by these VLPs in a mouse model. Immunization with the VLPs elicited RSV-specific IgG and neutralizing antibody production and conferred protection against RSV infection in vivo. Compared with UV-RSV or tHBc/FE1E2/M282-90/tG VLPs, the tHBc/FE1E2 and tHBc/FE1E2/M282-90 VLPs induced significantly decreased Th2 cytokines (IL-4, IL-5) and increased Th1 cytokines (IFN-γ, TNF-α, IL-2) as well as increased IgG2a/IgG1 ratios. tHBc/FE1E2 and tHBc/FE1E2/M282-90 VLPs also elicited an increased regulatory T (Treg) cell frequency and IL-10 secretion in the lungs of vaccinated mice, thereby relieving pulmonary pathology upon subsequent RSV infection. Our results demonstrate that the VLPs containing antigenic peptides of F protein combined with a CTL epitope of M2 may represent a promising RSV subunit vaccine candidate.
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Affiliation(s)
- Lei Lei
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China.
| | - Huan Qin
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Jin Luo
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yiluo Tan
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Jie Yang
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Zishu Pan
- State Key Laboratory of Virology, Modern Virology Research Center, College of Life Sciences, Wuhan University, Wuhan 430072, China.
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6
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Beugeling M, De Zee J, Woerdenbag HJ, Frijlink HW, Wilschut JC, Hinrichs WLJ. Respiratory syncytial virus subunit vaccines based on the viral envelope glycoproteins intended for pregnant women and the elderly. Expert Rev Vaccines 2019; 18:935-950. [PMID: 31446807 DOI: 10.1080/14760584.2019.1657013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Introduction: Respiratory syncytial virus (RSV) causes high morbidity and mortality rates among infants, young children, and the elderly worldwide. Unfortunately, a safe and effective vaccine is still unavailable. In 1966, a formalin-inactivated RSV vaccine failed and resulted in the death of two young children. This failure shifted research toward the development of subunit-based vaccines for pregnant women (to passively vaccinate infants) and the elderly. Among these subunit-based vaccines, the viral envelope glycoproteins show great potential as antigens. Areas covered: In this review, progress in the development of safe and effective subunit RSV vaccines based on the viral envelope glycoproteins and intended for pregnant women and the elderly, are reviewed and discussed. Studies published in the period 2012-2018 were included. Expert opinion: Researchers are close to bringing safe and effective subunit-based RSV vaccines to the market using the viral envelope glycoproteins as antigens. However, it remains a major challenge to elicit protective immunity, with a formulation that has sufficient (storage) stability. These issues may be overcome by using the RSV fusion protein in its pre-fusion conformation, and by formulating this protein as a dry powder. It may further be convenient to administer this powder via the pulmonary route.
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Affiliation(s)
- Max Beugeling
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen , Groningen , The Netherlands
| | - Jildou De Zee
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen , Groningen , The Netherlands
| | - Herman J Woerdenbag
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen , Groningen , The Netherlands
| | - Henderik W Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen , Groningen , The Netherlands
| | - Jan C Wilschut
- Department of Medical Microbiology, University of Groningen, University Medical Center Groningen , Groningen , The Netherlands
| | - Wouter L J Hinrichs
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen , Groningen , The Netherlands
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7
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Cortjens B, de Jong R, Bonsing JG, van Woensel JBM, Bem RA, Antonis AFG. Human respiratory syncytial virus infection in the pre-clinical calf model. Comp Immunol Microbiol Infect Dis 2019; 65:213-218. [PMID: 31300116 DOI: 10.1016/j.cimid.2019.04.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2018] [Revised: 01/19/2019] [Accepted: 04/08/2019] [Indexed: 10/27/2022]
Abstract
Human respiratory syncytial virus (hRSV) is the most important respiratory pathogen in young children worldwide. Experimental modelling of hRSV disease by bovine RSV (bRSV) infection in calves provides an important tool for developing new strategies for prevention and treatment. Depending on the scientific hypothesis under investigation, this cognate host-virus model might have the disadvantage of using a highly related but not genetically identical virus. In this study, we aim to describe viral kinetics and (clinical) disease characteristics in calves inoculated with hRSV. Our results show that hRSV infects the upper and, to a lesser extent, the lower respiratory tract of calves. Infection causes upper airway clinical disease symptoms and neutrophilic infiltration of the lower airways. We conclude that a hRSV model in calves may aid future research involving distinct scientific questions related to hRSV disease in children.
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Affiliation(s)
- B Cortjens
- Pediatric Intensive Care Unit, Emma Children's Hospital, Amsterdam, the Netherlands.
| | - R de Jong
- Wageningen University and Research, Bioveterinary Research, Lelystad, the Netherlands
| | - J G Bonsing
- Wageningen University and Research, Bioveterinary Research, Lelystad, the Netherlands
| | - J B M van Woensel
- Pediatric Intensive Care Unit, Emma Children's Hospital, Amsterdam, the Netherlands
| | - R A Bem
- Pediatric Intensive Care Unit, Emma Children's Hospital, Amsterdam, the Netherlands
| | - A F G Antonis
- Wageningen University and Research, Bioveterinary Research, Lelystad, the Netherlands
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8
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Parainfluenza virus 5 (PIV5) amplifying virus-like particles expressing respiratory syncytial virus (RSV) antigens protect mice against RSV infection. Vaccine 2019; 37:2925-2934. [PMID: 31010715 DOI: 10.1016/j.vaccine.2019.04.042] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 03/04/2019] [Accepted: 04/14/2019] [Indexed: 12/26/2022]
Abstract
Respiratory syncytial virus (RSV) is the leading cause of bronchiolitis and pneumonia in children under one year of age. In addition to causing severe respiratory diseases in children, it is also a major cause of morbidity and mortality among the elderly and immunocompromised individuals. RSV is the most common cause of lower respiratory tract infections, yet there are currently no licensed vaccines. A parainfluenza virus 5 (PIV5)-based amplifying virus-like particle (AVLP), which enables the use of PIV5 RNA transcription/replication machinery to express gene of interest, has recently been developed. We evaluated the PIV5-based AVLP system as a vaccine platform for RSV by incorporating the fusion protein (F) gene and the transcription factor protein (M2-1) gene of RSV into the PIV5-AVLP backbone (AVLP-F and AVLP-M2-1, respectively). Mice immunized with a single dose of the AVLP-F or AVLP-M2-1 developed RSV-F or RSV-M2-1-specific immune responses, respectively. Both vaccine candidates elicited antigen-specific cell-mediated responses at levels comparable to or higher than an RSV infection. Most importantly, each vaccine was able to induce protection against RSV A2 challenge in the mouse model. These results indicate the potential of the PIV5-based AVLP system as a platform for vaccines against RSV infection.
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9
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A single intranasal administration of virus-like particle vaccine induces an efficient protection for mice against human respiratory syncytial virus. Antiviral Res 2017; 144:57-69. [PMID: 28529001 DOI: 10.1016/j.antiviral.2017.05.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 05/08/2017] [Accepted: 05/08/2017] [Indexed: 12/21/2022]
Abstract
Human respiratory syncytial virus (RSV) is an important pediatric pathogen causing acute viral respiratory disease in infants and young children. However, no licensed vaccines are currently available. Virus-like particles (VLPs) may bring new hope to producing RSV VLP vaccine with high immunogenicity and safety. Here, we constructed the recombinants of matrix protein (M) and fusion glycoprotein (F) of RSV, respectively into a replication-deficient first-generation adenoviral vector (FGAd), which were used to co-infect Vero cells to assemble RSV VLPs successfully. The resulting VLPs showed similar immunoreactivity and function to RSV virion in vitro. Moreover, Th1 polarized response, and effective mucosal virus-neutralizing antibody and CD8+ T-cell responses were induced by a single intranasal (i.n.) administration of RSV VLPs rather than intramuscular (i.m.) inoculation, although the comparable RSV F-specific serum IgG and long-lasting RSV-specific neutralizing antibody were detected in the mice immunized by both routes. Upon RSV challenge, VLP-immunized mice showed increased viral clearance but decreased signs of enhanced lung pathology and fewer eosinophils compared to mice immunized with formalin-inactivated RSV (FI-RSV). In addition, a single i.n. RSV VLP vaccine has the capability to induce RSV-specific long-lasting neutralizing antibody responses observable up to 15 months. Our results demonstrate that the long-term and memory immune responses in mice against RSV were induced by a single i.n. administration of RSV VLP vaccine, suggesting a successful approach of RSV VLPs as an effective and safe mucosal vaccine against RSV infection, and an applicable and qualified platform of FGAd-infected Vero cells for VLP production.
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10
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Shafique M, Rasool MH, Khurshid M. Respiratory syncytial virus: an overview of infection biology and vaccination strategies. Future Virol 2017. [DOI: 10.2217/fvl-2017-0120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Respiratory syncytial virus (RSV) is the foremost cause of lower respiratory tract infections, especially in infants and young children. To date, there is no licensed vaccine available for RSV. Only option to restrain RSV is a prophylactic treatment in the form of monoclonal antibody (palivizumab). However, it is quite expensive and used in few patients with co-morbidities. In ongoing research, virologists contemplate about various vaccine candidates to control RSV infection. This review will help in understating the RSV pathobiology and encompass the advancement on various vaccine candidates that would lead to reduce the incidence, mortality and morbidity. Furthermore, it will lighten up the different avenues which might be useful for the development of novel vaccination approaches.
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Affiliation(s)
- Muhammad Shafique
- Department of Microbiology, Government College University Faisalabad, Pakistan
| | | | - Mohsin Khurshid
- Department of Microbiology, Government College University Faisalabad, Pakistan
- College of Allied Health Professionals, Directorate of Medical Sciences, Government College University Faisalabad, Pakistan
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11
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Cai M, Wang C, Li Y, Gu H, Sun S, Duan Y, Lai C, Wang K, Yang X, Xing L, Zhang P, Wang Z, Zhang S, Guo X, Liu S, Tong Y, Wang X, Yang P. Virus-like particle vaccine by intranasal vaccination elicits protective immunity against respiratory syncytial viral infection in mice. Acta Biochim Biophys Sin (Shanghai) 2017; 49:74-82. [PMID: 27974288 DOI: 10.1093/abbs/gmw118] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 10/30/2016] [Indexed: 11/12/2022] Open
Abstract
Respiratory syncytial virus (RSV) is a leading cause of lower respiratory infection in infants and children, but there is still no licensed vaccine available. In this report, we developed virus-like particle (VLP) vaccines based on the Bac-to-Bac baculovirus expression system, consisting of an influenza virus matrix (M1) protein and the RSV fusion protein (F) or glycoprotein (G). These RSV VLPs were identified by western blot analysis and electron microscopy. Female BALB/c mice immunized intranasally (i.n.) with RSV-F VLPs, RSV-G VLPs, or both showed viral-specific antibody responses against RSV. Total IgG, IgG1, IgG2a, and mucosal IgA were detected in mice with RSV-F plus RSV-G VLPs, revealing potent cellular and mucosal immune responses. Moreover, we found that these mixed RSV VLPs conferred enhanced protection against live RSV challenges, showing significant decreases in lung viral replication and obvious attenuation of histopathological changes associated with viral infections. These results demonstrate that RSV-F plus RSV-G VLPs by intranasal vaccination is a promising vaccine candidate that warrants further evaluation using cotton rat and primate models.
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Affiliation(s)
- Mengying Cai
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Cheng Wang
- Beijing 307 Hospital, Affiliated to Academy of Medical Sciences, Beijing 100071, China
| | - Yufeng Li
- Chinese PLA General Hospital, Beijing 100853, China
| | - Hongjing Gu
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Sujing Sun
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Yueqiang Duan
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Chengcai Lai
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Keyu Wang
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Xiaolan Yang
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Li Xing
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | | | | | | | | | - Shubing Liu
- Beijing 307 Hospital, Affiliated to Academy of Medical Sciences, Beijing 100071, China
| | - Yigang Tong
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Xiliang Wang
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
| | - Penghui Yang
- Beijing Institute of Microbiology and Epidemiology, State Key Laboratory of Pathogen and Biosecurity, Beijing 100071, China
- Beijing 302 Hospital, Beijing 100039, China
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Synthetic Biodegradable Microparticle and Nanoparticle Vaccines against the Respiratory Syncytial Virus. Vaccines (Basel) 2016; 4:vaccines4040045. [PMID: 27918420 PMCID: PMC5192365 DOI: 10.3390/vaccines4040045] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 11/22/2016] [Accepted: 11/22/2016] [Indexed: 01/06/2023] Open
Abstract
Synthetic biodegradable microparticle and nanoparticle platform technology provides the opportunity to design particles varying in composition, size, shape and surface properties for application in vaccine development. The use of particle vaccine formulations allows improvement of antigen stability and immunogenicity while allowing targeted delivery and slow release. This technology has been design to develop novel vaccines against the respiratory syncytial virus (RSV), the leading cause of lower respiratory tract infection in infants. In the last decade, several nano- and micro-sized RSV vaccine candidates have been developed and tested in animal models showing promising results. This review provides an overview of recent advances in prophylactic particle vaccines for RSV and the multiple factors that can affect vaccine efficacy.
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Jorquera PA, Anderson L, Tripp RA. Understanding respiratory syncytial virus (RSV) vaccine development and aspects of disease pathogenesis. Expert Rev Vaccines 2015; 15:173-87. [PMID: 26641318 DOI: 10.1586/14760584.2016.1115353] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Respiratory syncytial virus (RSV) is the most important cause of lower respiratory tract infections causing bronchiolitis and some mortality in young children and the elderly. Despite decades of research there is no licensed RSV vaccine. Although significant advances have been made in understanding the immune factors responsible for inducing vaccine-enhanced disease in animal models, less information is available for humans. In this review, we discuss the different types of RSV vaccines and their target population, the need for establishing immune correlates for vaccine efficacy, and how the use of different animal models can help predict vaccine efficacy and clinical outcomes in humans.
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Affiliation(s)
- Patricia A Jorquera
- a Department of Infectious Disease, College of Veterinary Medicine , University of Georgia , Athens , GA , Georgia
| | - Lydia Anderson
- a Department of Infectious Disease, College of Veterinary Medicine , University of Georgia , Athens , GA , Georgia
| | - Ralph A Tripp
- a Department of Infectious Disease, College of Veterinary Medicine , University of Georgia , Athens , GA , Georgia
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