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Lee ES, Shim YJ, Chathuranga WAG, Ahn YH, Yoon IJ, Yoo SS, Lee JS. CAvant® WO-60 as an Effective Immunological Adjuvant for Avian Influenza and Newcastle Disease Vaccine. Front Vet Sci 2021; 8:730700. [PMID: 34926633 PMCID: PMC8677964 DOI: 10.3389/fvets.2021.730700] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/26/2021] [Indexed: 12/03/2022] Open
Abstract
Despite the immunogenicity of vaccines currently used in poultry, several pathogens, including avian influenza virus (AIV) and Newcastle disease virus (NDV), cause enormous economic losses to the global poultry industry. The efficacy of vaccines can be improved by the introduction of effective adjuvants. This study evaluated a novel water-in-oil emulsion adjuvant, CAvant® WO-60, which effectively enhanced both the immunogenicity of conserved influenza antigen sM2HA2 and inactivated whole H9N2 antigen (iH9N2). CAvant® WO-60 induced both humoral and cell-mediated immunity in mice and provided 100% protection from challenge with 10 LD50 of A/Aquatic bird/Korea/W81/2005 (H5N2) and A/Chicken/Korea/116/2004 (H9N2) AIV. Importantly, immunization of chickens with iH9N2 plus inactivated NDV LaSota (iNDV) bivalent inactivated vaccine emulsified in CAvant® WO-60 induced seroprotective levels of antigen-specific antibody responses. Taken together, these results suggested that CAvant® WO-60 is a promising adjuvant for poultry vaccines.
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Affiliation(s)
- Eun-Seo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Young-Jung Shim
- Choong Ang Vaccine Laboratory Co., Ltd., Daejeon, South Korea
| | | | - Young-Hoon Ahn
- Choong Ang Vaccine Laboratory Co., Ltd., Daejeon, South Korea
| | - In-Joong Yoon
- Choong Ang Vaccine Laboratory Co., Ltd., Daejeon, South Korea
| | - Sung-Sik Yoo
- Choong Ang Vaccine Laboratory Co., Ltd., Daejeon, South Korea
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
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Hajam IA, Senevirathne A, Hewawaduge C, Kim J, Lee JH. Intranasally administered protein coated chitosan nanoparticles encapsulating influenza H9N2 HA2 and M2e mRNA molecules elicit protective immunity against avian influenza viruses in chickens. Vet Res 2020; 51:37. [PMID: 32143695 PMCID: PMC7060564 DOI: 10.1186/s13567-020-00762-4] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 02/17/2020] [Indexed: 12/31/2022] Open
Abstract
Chitosan nanoparticles (CNPs) represent an efficient vaccination tool to deliver immunogenic antigens to the antigen-presenting cells (APCs), which subsequently stimulate protective immune responses against infectious diseases. Herein, we prepared CNPs encapsulating mRNA molecules followed by surface coating with conserved H9N2 HA2 and M2e influenza proteins. We demonstrated that CNPs efficiently delivered mRNA molecules into APCs and had effectively penetrated the mucosal barrier to reach to the immune initiation sites. To investigate the potential of CNPs delivering influenza antigens to stimulate protective immunity, we intranasally vaccinated chickens with empty CNPs, CNPs delivering HA2 and M2e in both mRNA and protein formats (CNPs + RNA + Pr) or CNPs delivering antigens in protein format only (CNPs + Pr). Our results demonstrated that chickens vaccinated with CNPs + RNA + Pr elicited significantly (p < 0.05) higher systemic IgG, mucosal IgA antibody responses and cellular immune responses compared to the CNPs + Pr vaccinated group. Consequently, upon challenge with either H7N9 or H9N2 avian influenza viruses (AIVs), efficient protection, in the context of viral load and lung pathology, was observed in chickens vaccinated with CNPs + RNA + Pr than CNPs + Pr vaccinated group. In conclusion, we show that HA2 and M2e antigens elicited a broad spectrum of protection against AIVs and incorporation of mRNAs in vaccine formulation is an effective strategy to induce superior immune responses.
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Affiliation(s)
- Irshad Ahmed Hajam
- College of Veterinary Medicine, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Amal Senevirathne
- College of Veterinary Medicine, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Chamit Hewawaduge
- College of Veterinary Medicine, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - Jehyoung Kim
- College of Veterinary Medicine, Jeonbuk National University, Iksan, 54596, Republic of Korea
| | - John Hwa Lee
- College of Veterinary Medicine, Jeonbuk National University, Iksan, 54596, Republic of Korea.
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3
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Bae EH, Seo SH, Kim CU, Jang MS, Song MS, Lee TY, Jeong YJ, Lee MS, Park JH, Lee P, Kim YS, Kim SH, Kim DJ. Bacterial Outer Membrane Vesicles Provide Broad-Spectrum Protection against Influenza Virus Infection via Recruitment and Activation of Macrophages. J Innate Immun 2019; 11:316-329. [PMID: 30844806 DOI: 10.1159/000494098] [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] [Received: 05/16/2018] [Accepted: 09/16/2018] [Indexed: 12/24/2022] Open
Abstract
Influenza A virus (IAV) poses a constant worldwide threat to human health. Although conventional vaccines are available, their protective efficacy is type or strain specific, and their production is time-consuming. For the control of an influenza pandemic in particular, agents that are immediately effective against a wide range of virus variants should be developed. Although pretreatment of various Toll-like receptor (TLR) ligands have already been reported to be effective in the defense against subsequent IAV infection, the efficacy was limited to specific subtypes, and safety concerns were also raised. In this study, we investigated the protective effect of an attenuated bacterial outer membrane vesicle -harboring modified lipid A moiety of lipopolysaccharide (fmOMV) against IAV infection and the underlying mechanisms. Administration of fmOMV conferred significant protection against a lethal dose of pandemic H1N1, PR8, H5N2, and highly pathogenic H5N1 viruses; this broad antiviral activity was dependent on macrophages but independent of neutrophils. fmOMV induced recruitment and activation of macrophages and elicited type I IFNs. Intriguingly, fmOMV showed a more significant protective effect than other TLR ligands tested in previous reports, without exhibiting any adverse effect. These results show the potential of fmOMV as a prophylactic agent for the defense against influenza virus infection.
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Affiliation(s)
- Eun-Hye Bae
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Sang Hwan Seo
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Chang-Ung Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea.,Department of Biochemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Min Seong Jang
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Min-Suk Song
- College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Republic of Korea
| | - Tae-Young Lee
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Yu-Jin Jeong
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea
| | - Moo-Seung Lee
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea.,University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Jong-Hwan Park
- College of Veterinary Medicine, Chonnam National University, Gwangju, Republic of Korea
| | - Pureum Lee
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea.,University of Science and Technology (UST), Daejeon, Republic of Korea
| | - Young Sang Kim
- Department of Biochemistry, Chungnam National University, Daejeon, Republic of Korea
| | - Sang-Hyun Kim
- College of Veterinary Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Doo-Jin Kim
- Infectious Disease Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Republic of Korea, .,Department of Biochemistry, Chungnam National University, Daejeon, Republic of Korea, .,University of Science and Technology (UST), Daejeon, Republic of Korea,
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4
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Hajam IA, Kim J, Lee JH. Intranasally administered polyethylenimine adjuvanted influenza M2 ectodomain induces partial protection against H9N2 influenza A virus infection in chickens. Vet Immunol Immunopathol 2019; 209:78-83. [PMID: 30885310 DOI: 10.1016/j.vetimm.2019.02.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Revised: 01/11/2019] [Accepted: 02/19/2019] [Indexed: 12/25/2022]
Abstract
This study aimed to investigate whether intranasally coadministered four tandem copies of extracellular domains of M2 (M2e) and polyethyleneimine (PEI), a mucosal adjuvant, can protect chickens against H9N2 influenza A virus infection. Groups of chickens were intranasally vaccinated with M2e plus PEI adjuvant, M2e alone or PEI adjuvant, and antibody (serum IgG and mucosal IgA) and cellular (CD4+ T cells and IFN-γ levels) immune responses were measured post-vaccination. We demonstrated that the chickens vaccinated with M2e plus PEI adjuvant showed significantly (p < 0.05) higher M2e-specific systemic IgG and mucosal IgA responses compared to the chickens that received either M2e alone or PEI adjuvant. The IgA responses measured in lungs were almost comparable to that of the serum IgG levels. Upon restimulation of the vaccinated peripheral blood mononuclear cells (PBMCs) with M2e antigen, significantly (p < 0.05) higher IFN-γ levels were observed only in M2e plus PEI adjuvant vaccinated group. Lymphoproliferative and CD4+ T cell responses, as measured by MTT-based assay and flow cytometry, respectively, were also observed significantly (p < 0.05) higher in M2e plus PEI adjuvant vaccinated chickens. On challenge with the H9N2 virus (104TCID50) at 28th day post-vaccination, M2e plus PEI adjuvant vaccinated group exhibited lower lung inflammation and viral load compared to the chickens treated with either M2e alone or PEI adjuvant. In summary, we show that intranasally coadministered M2e and PEI adjuvant can elicit humoral and cell-mediated immune responses and can reduce viremia levels in chickens post H9N2 infection in chickens.
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Affiliation(s)
- Irshad Ahmed Hajam
- College of Veterinary Medicine, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - Jehyoung Kim
- College of Veterinary Medicine, Chonbuk National University, Iksan, 54596, Republic of Korea
| | - John Hwa Lee
- College of Veterinary Medicine, Chonbuk National University, Iksan, 54596, Republic of Korea.
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Cao Y, Dong Y, Chou JJ. Structural and Functional Properties of Viral Membrane Proteins. ADVANCES IN MEMBRANE PROTEINS 2018. [PMCID: PMC7122571 DOI: 10.1007/978-981-13-0532-0_6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Viruses have developed a large variety of transmembrane proteins to carry out their infectious cycles. Some of these proteins are simply anchored to membrane via transmembrane helices. Others, however, adopt more interesting structures to perform tasks such as mediating membrane fusion and forming ion-permeating channels. Due to the dynamic or plastic nature shown by many of the viral membrane proteins, structural and mechanistic understanding of these proteins has lagged behind their counterparts in prokaryotes and eukaryotes. This chapter provides an overview of the use of NMR spectroscopy to unveil the transmembrane and membrane-proximal regions of viral membrane proteins, as well as their interactions with potential therapeutics.
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Affiliation(s)
- Yu Cao
- Institute of Precision Medicine, The Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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Golchin M, Moghadaszadeh M, Tavakkoli H, Ghanbarpour R, Dastmalchi S. Recombinant M2e-HA2 fusion protein induced immunity responses against intranasally administered H9N2 influenza virus. Microb Pathog 2017; 115:183-188. [PMID: 29273512 DOI: 10.1016/j.micpath.2017.12.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2017] [Revised: 12/16/2017] [Accepted: 12/18/2017] [Indexed: 11/17/2022]
Abstract
Influenza is a highly contagious respiratory tract disease and is considered a serious community health problem. Influenza viruses possess multiple conserved epitopes which are used for designing universal vaccines. To this aim, the gene coding for N-terminal part of M2e (SLLTEVET) and HA2 (GLFGAIAGF), was synthesized, linked by a (Gly4Ser)4 peptide linker, and cloned into pGS-21a vector. Afterwards, the construct was transferred into E. coli BL21 (DE3) cells to produce the designed antigenic protein called M2e-HA2. Immunization of mice with these peptides significantly induced humoral immune responses against the influenza virus. Three weeks after the last booster, mice were inoculated intranasally with 1 × 106 EID50 of H9N2 virus. The results indicated that the recombinant M2e-HA2 fusion protein could protect mice against H9N2 virus.
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Affiliation(s)
- Mehdi Golchin
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Masoud Moghadaszadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Young Researchers Society, Shahid Bahonar University of Kerman, Kerman, Iran.
| | - Hadi Tavakkoli
- Department of Clinical Sciences, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Reza Ghanbarpour
- Department of Pathobiology, Faculty of Veterinary Medicine, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
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7
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Choi WS, Lloren KKS, Baek YH, Song MS. The significance of avian influenza virus mouse-adaptation and its application in characterizing the efficacy of new vaccines and therapeutic agents. Clin Exp Vaccine Res 2017; 6:83-94. [PMID: 28775972 PMCID: PMC5540968 DOI: 10.7774/cevr.2017.6.2.83] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Revised: 05/03/2017] [Accepted: 05/12/2017] [Indexed: 11/26/2022] Open
Abstract
Due to the increased frequency of interspecies transmission of avian influenza viruses, studies designed to identify the molecular determinants that could lead to an expansion of the host range have been increased. A variety of mouse-based mammalian-adaptation studies of avian influenza viruses have provided insight into the genetic alterations of various avian influenza subtypes that may contribute to the generation of a pandemic virus. To date, the studies have focused on avian influenza subtypes H5, H6, H7, H9, and H10 which have recently caused human infection. Although mice cannot fully reflect the course of human infection with avian influenza, these mouse studies can be a useful method for investigating potential mammalian adaptive markers against newly emerging avian influenza viruses. In addition, due to the lack of appropriate vaccines against the diverse emerging influenza viruses, the generation of mouse-adapted lethal variants could contribute to the development of effective vaccines or therapeutic agents. Within this review, we will summarize studies that have demonstrated adaptations of avian influenza viruses that result in an altered pathogenicity in mice which may suggest the potential application of mouse-lethal strains in the development of influenza vaccines and/or therapeutics in preclinical studies.
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Affiliation(s)
- Won-Suk Choi
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Khristine Kaith S Lloren
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Yun Hee Baek
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
| | - Min-Suk Song
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, Cheongju, Korea
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8
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Hajam IA, Lee JH. Preexisting Salmonella -specific immunity interferes with the subsequent development of immune responses against the Salmonella strains delivering H9N2 hemagglutinin. Vet Microbiol 2017. [DOI: 10.1016/j.vetmic.2017.05.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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9
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Hajam IA, Lee JH. An Influenza HA and M2e Based Vaccine Delivered by a Novel Attenuated Salmonella Mutant Protects Mice against Homologous H1N1 Infection. Front Microbiol 2017; 8:872. [PMID: 28555133 PMCID: PMC5430049 DOI: 10.3389/fmicb.2017.00872] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Accepted: 04/28/2017] [Indexed: 12/27/2022] Open
Abstract
Attenuated Salmonella strains constitute a promising technology for the development of a more efficient multivalent protein based vaccines. In this study, we constructed a novel attenuated strain of Salmonella for the delivery and expression of the H1N1 hemagglutinin (HA) and the conserved extracellular domain of the matrix protein 2 (M2e). We demonstrated that the constructed Salmonella strain exhibited efficient HA and M2e protein expressions and little cytotoxicity and pathogenicity in mice. Using BALB/c mice as the model, we showed that the mice vaccinated with a Salmonella strain expressing HA and M2e protein antigens, respectively, induced significant production of HA and M2e-specific serum IgG1 and IgG2a responses, and of anti-HA interferon-γ producing T cells. Furthermore, immunization with Salmonella-HA-M2e-based vaccine via different routes provided protection in 66.66% orally, 100% intramuscularly, and 100% intraperitoneally immunized mice against the homologous H1N1 virus while none of the animals survived treated with either the PBS or the Salmonella carrying empty expression vector. Ex vivo stimulated dendritic cells (DCs) with heat killed Salmonella expressing HA demonstrated that DCs play an important role in the elicitation of HA-specific humoral immune responses in mice. In summary, Salmonella-HA-M2e-based vaccine elicits efficient antigen-specific humoral and cellular immune responses, and provides significant immune protection against a highly pathogenic H1N1 influenza virus.
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Affiliation(s)
- Irshad A Hajam
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National UniversityIksan, South Korea
| | - John H Lee
- College of Veterinary Medicine and Bio-Safety Research Institute, Chonbuk National UniversityIksan, South Korea
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10
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Chowdhury MYE, Kim TH, Uddin MB, Kim JH, Hewawaduge CY, Ferdowshi Z, Sung MH, Kim CJ, Lee JS. Mucosal vaccination of conserved sM2, HA2 and cholera toxin subunit A1 (CTA1) fusion protein with poly gamma-glutamate/chitosan nanoparticles (PC NPs) induces protection against divergent influenza subtypes. Vet Microbiol 2017; 201:240-251. [PMID: 28284616 DOI: 10.1016/j.vetmic.2017.01.020] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 01/18/2017] [Accepted: 01/18/2017] [Indexed: 01/13/2023]
Abstract
To develop a safe and effective mucosal vaccine that broad cross protection against seasonal or emerging influenza A viruses, we generated a mucosal influenza vaccine system combining the highly conserved matrix protein-2 (sM2), fusion peptide of hemagglutinin (HA2), the well-known mucosal adjuvant cholera toxin subunit A1 (CTA1) and poly-γ-glutamic acid (γ-PGA)-chitosan nanoparticles (PC NPs), which are safe, natural materials that are able to target the mucosal membrane as a mucosal adjuvant. The mucosal administration of sM2HA2CTA1/PC NPs could induce a high degree of systemic immunity (IgG and IgA) at the site of inoculation as well as at remote locations and also significantly increase the levels of sM2- or HA2-specific cell-mediated immune response. In challenge tests in BALB/c mice with 10 MLD50 of A/EM/Korea/W149/06(H5N1), A/Puerto Rico/8/34(H1N1), A/Aquatic bird/Korea/W81/2005(H5N2), A/Aquatic bird/Korea/W44/2005 (H7N3) or A/Chicken/Korea/116/2004(H9N2) viruses, the recombinant sM2HA2CTA1/PC NPs provided cross protection against divergent lethal influenza subtypes and also the protection was maintained up to six months after vaccination. Thus, sM2HA2CTA1/PC NPs could be a promising strategy for a universal influenza vaccine.
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Affiliation(s)
- Mohammed Y E Chowdhury
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea; Faculty of Veterinary Medicine, Chittagong Veterinary and Animal Sciences University, Chittagong, Bangladesh
| | - Tae-Hwan Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Md Bashir Uddin
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea; Faculty of Veterinary & Animal Science, Sylhet Agricultural University, Sylhet -3100, Bangladesh
| | - Jae-Hoon Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - C Y Hewawaduge
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea
| | - Zannatul Ferdowshi
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea; Department of Biochemistry and Biotechnology, University of Science and Technology Chittagong, Bangladesh
| | | | - Chul-Joong Kim
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea.
| | - Jong-Soo Lee
- College of Veterinary Medicine, Chungnam National University, Daejeon, Republic of Korea.
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Zhang J, Fan HY, Zhang Z, Zhang J, Zhang J, Huang JN, Ye Y, Liao M. Recombinant baculovirus vaccine containing multiple M2e and adjuvant LTB induces T cell dependent, cross-clade protection against H5N1 influenza virus in mice. Vaccine 2016; 34:622-629. [DOI: 10.1016/j.vaccine.2015.12.039] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 10/19/2015] [Accepted: 12/15/2015] [Indexed: 12/01/2022]
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Intranasal Introduction of Fc-Fused Interleukin-7 Provides Long-Lasting Prophylaxis against Lethal Influenza Virus Infection. J Virol 2015; 90:2273-84. [PMID: 26656713 DOI: 10.1128/jvi.02768-15] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 12/03/2015] [Indexed: 11/20/2022] Open
Abstract
UNLABELLED Influenza A virus (IAV) infection frequently causes hospitalization and mortality due to severe immunopathology. Annual vaccination and antiviral drugs are the current countermeasures against IAV infection, but they have a limited efficacy against new IAV variants. Here, we show that intranasal pretreatment with Fc-fused interleukin-7 (IL-7-mFc) protects mice from lethal IAV infections. The protective activity of IL-7-mFc relies on transcytosis via neonatal Fc receptor (FcRn) in the lung and lasts for several weeks. Introduction of IL-7-mFc alters pulmonary immune environments, leading to recruitment of T cells from circulation and their subsequent residency as tissue-resident memory-like T (TRM-like) cells. IL-7-mFc-primed pulmonary TRM-like cells contribute to protection upon IAV infection by dual modes. First, TRM-like cells, although not antigen specific but polyclonal, attenuate viral replication at the early phase of IAV infection. Second, TRM-like cells augment expansion of IAV-specific cytotoxic T lymphocytes (CTLs), in particular at the late phase of infection, which directly control viruses. Thus, accelerated viral clearance facilitated by pulmonary T cells, which are either antigen specific or not, alleviates immunopathology in the lung and mortality from IAV infection. Depleting a subset of pulmonary T cells indicates that both CD4 and CD8 T cells contribute to protection from IAV, although IL-7-primed CD4 T cells have a more prominent role. Collectively, we propose intranasal IL-7-mFc pretreatment as an effective means for generating protective immunity against IAV infections, which could be applied to a potential prophylaxis for influenza pandemics in the future. IMPORTANCE The major consequence of a highly pathogenic IAV infection is severe pulmonary inflammation, which can result in organ failure and death at worst. Although vaccines for seasonal IAVs are effective, frequent variation of surface viral proteins hampers development of protective immunity. In this study, we demonstrated that intranasal IL-7-mFc pretreatment protected immunologically naive mice from lethal IAV infections. Intranasal pretreatment with IL-7-mFc induced an infiltration of T cells in the lung, which reside as effector/memory T cells with lung-retentive markers. Those IL-7-primed pulmonary T cells contributed to development of protective immunity upon IAV infection, reducing pulmonary immunopathology while increasing IAV-specific cytotoxic T lymphocytes. Since a single treatment with IL-7-mFc was effective in the protection against multiple strains of IAV for an extended period of time, our findings suggest a possibility that IL-7-mFc treatment, as a potential prophylaxis, can be developed for controlling highly pathogenic IAV infections.
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13
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Lee YN, Kim MC, Lee YT, Hwang HS, Lee J, Kim C, Kang SM. Cross Protection against Influenza A Virus by Yeast-Expressed Heterologous Tandem Repeat M2 Extracellular Proteins. PLoS One 2015; 10:e0137822. [PMID: 26366729 PMCID: PMC4569442 DOI: 10.1371/journal.pone.0137822] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 08/24/2015] [Indexed: 01/08/2023] Open
Abstract
The influenza M2 ectodomain (M2e) is well conserved across human influenza A subtypes, but there are few residue changes among avian and swine origin influenza A viruses. We expressed a tandem repeat construct of heterologous M2e sequences (M2e5x) derived from human, swine, and avian origin influenza A viruses using the yeast expression system. Intramuscular immunization of mice with AS04-adjuvanted M2e5x protein vaccines was effective in inducing M2e-specific antibodies reactive to M2e peptide and native M2 proteins on the infected cells with human, swine, or avian influenza virus, mucosal and systemic memory cellular immune responses, and cross-protection against H3N2 virus. Importantly, M2e5x immune sera were found to confer protection against different subtypes of H1N1 and H5N1 influenza A viruses in naïve mice. Also, M2e5x-immune complexes of virus-infected cells stimulated macrophages to secrete cytokines via Fc receptors, indicating a possible mechanism of protection. The present study provides evidence that M2e5x proteins produced in yeast cells could be developed as a potential universal influenza vaccine.
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Affiliation(s)
- Yu-Na Lee
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia 30303, United States of America
| | - Min-Chul Kim
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia 30303, United States of America
- Animal and Plant Quarantine Agency, Anyang, Gyeonggi-do, South Korea
| | - Young-Tae Lee
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia 30303, United States of America
| | - Hye Suk Hwang
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia 30303, United States of America
| | - Jongsang Lee
- BEAMS Biotechnology Co. Ltd., Seongnam, Gyeonggi-do, South Korea
| | - Cheol Kim
- BEAMS Biotechnology Co. Ltd., Seongnam, Gyeonggi-do, South Korea
| | - Sang-Moo Kang
- Center for Inflammation, Immunity & Infection, Institute for Biomedical Sciences, Georgia State University, Atlanta, Georgia 30303, United States of America
- * E-mail:
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Kim HJ, Ahn KY, Bae KD, Lee J, Sim SJ, Lee J. Adjuvant effect of B domain of staphyloccocal protein A displayed on the surface of hepatitis B virus capsid. Biotechnol Bioeng 2015. [DOI: 10.1002/bit.25716] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Hyun Jin Kim
- Department of Chemical and Biological Engineering; Korea University, Anam-Dong 5-1; Seongbuk-Gu, Seoul 136-713; Seoul Sungbuk-Ku Republic of Korea
| | - Keum-Young Ahn
- Department of Chemical and Biological Engineering; Korea University, Anam-Dong 5-1; Seongbuk-Gu, Seoul 136-713; Seoul Sungbuk-Ku Republic of Korea
| | - Kyung Dong Bae
- Berna Biotech Korea Corp.; Incheon Yeonsu-gu Republic of Korea
| | - Jiyun Lee
- Department of Chemical and Biological Engineering; Korea University, Anam-Dong 5-1; Seongbuk-Gu, Seoul 136-713; Seoul Sungbuk-Ku Republic of Korea
| | - Sang Jun Sim
- Department of Chemical and Biological Engineering; Korea University, Anam-Dong 5-1; Seongbuk-Gu, Seoul 136-713; Seoul Sungbuk-Ku Republic of Korea
| | - Jeewon Lee
- Department of Chemical and Biological Engineering; Korea University, Anam-Dong 5-1; Seongbuk-Gu, Seoul 136-713; Seoul Sungbuk-Ku Republic of Korea
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15
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Mucosally administered Lactobacillus surface-displayed influenza antigens (sM2 and HA2) with cholera toxin subunit A1 (CTA1) Induce broadly protective immune responses against divergent influenza subtypes. Vet Microbiol 2015. [PMID: 26210951 DOI: 10.1016/j.vetmic.2015.07.020] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The development of a universal influenza vaccine that provides broad cross protection against existing and unforeseen influenza viruses is a critical challenge. In this study, we constructed and expressed conserved sM2 and HA2 influenza antigens with cholera toxin subunit A1 (CTA1) on the surface of Lactobacillus casei (pgsA-CTA1sM2HA2/L. casei). Oral and nasal administrations of recombinant L. casei into mice resulted in high levels of serum immunoglobulin G (IgG) and their isotypes (IgG1 & IgG2a) as well as mucosal IgA. The mucosal administration of pgsA-CTA1sM2HA2/L. casei may also significantly increase the levels of sM2- or HA2-specific cell-mediated immunity because increased release of both IFN-γ and IL-4 was observed. The recombinant pgsA-CTA1sM2HA2/L. casei provided better protection of BALB/c mice against 10 times the 50% mouse lethal doses (MLD50) of homologous A/EM/Korea/W149/06(H5N1) or A/Aquatic bird/Korea/W81/2005 (H5N2) and heterologous A/Puerto Rico/8/34(H1N1), or A/Chicken/Korea/116/2004(H9N2) or A/Philippines/2/08(H3N2) viruses, compared with L. casei harboring sM2HA2 and also the protection was maintained up to seven months after administration. These results indicate that recombinant L. casei expressing the highly conserved sM2, HA2 of influenza and CTA1 as a mucosal adjuvant could be a potential mucosal vaccine candidate or tool to protect against divergent influenza viruses for human and animal.
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16
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Choi EH, Song MS, Park SJ, Pascua PNQ, Baek YH, Kwon HI, Kim EH, Kim S, Jang HK, Poo H, Kim CJ, Choi YK. Development of a dual-protective live attenuated vaccine against H5N1 and H9N2 avian influenza viruses by modifying the NS1 gene. Arch Virol 2015; 160:1729-40. [PMID: 25959557 DOI: 10.1007/s00705-015-2442-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2014] [Accepted: 04/26/2015] [Indexed: 11/26/2022]
Abstract
An increasing number of outbreaks of avian influenza H5N1 and H9N2 viruses in poultry have caused serious economic losses and raised concerns for human health due to the risk of zoonotic transmission. However, licensed H5N1 and H9N2 vaccines for animals and humans have not been developed. Thus, to develop a dual H5N1 and H9N2 live-attenuated influenza vaccine (LAIV), the HA and NA genes from a virulent mouse-adapted avian H5N2 (A/WB/Korea/ma81/06) virus and a recently isolated chicken H9N2 (A/CK/Korea/116/06) virus, respectively, were introduced into the A/Puerto Rico/8/34 backbone expressing truncated NS1 proteins (NS1-73, NS1-86, NS1-101, NS1-122) but still possessing a full-length NS gene. Two H5N2/NS1-LAIV viruses (H5N2/NS1-86 and H5N2/NS1-101) were highly attenuated compared with the full-length and remaining H5N2/NS-LAIV viruses in a mouse model. Furthermore, viruses containing NS1 modifications were found to induce more IFN-β activation than viruses with full-length NS1 proteins and were correspondingly attenuated in mice. Intranasal vaccination with a single dose (10(4.0) PFU/ml) of these viruses completely protected mice from a lethal challenge with the homologous A/WB/Korea/ma81/06 (H5N2), heterologous highly pathogenic A/EM/Korea/W149/06 (H5N1), and heterosubtypic highly virulent mouse-adapted H9N2 viruses. This study clearly demonstrates that the modified H5N2/NS1-LAIV viruses attenuated through the introduction of mutations in the NS1 coding region display characteristics that are desirable for live attenuated vaccines and hold potential as vaccine candidates for mammalian hosts.
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MESH Headings
- Animals
- Antibodies, Viral/immunology
- Chickens
- Female
- Humans
- Influenza A Virus, H5N1 Subtype/genetics
- Influenza A Virus, H5N1 Subtype/immunology
- Influenza A Virus, H9N2 Subtype/genetics
- Influenza A Virus, H9N2 Subtype/immunology
- Influenza Vaccines/administration & dosage
- Influenza Vaccines/genetics
- Influenza Vaccines/immunology
- Influenza in Birds/immunology
- Influenza in Birds/prevention & control
- Influenza in Birds/virology
- Influenza, Human/virology
- Mice
- Mice, Inbred BALB C
- Poultry Diseases/immunology
- Poultry Diseases/prevention & control
- Poultry Diseases/virology
- Vaccination
- Vaccines, Attenuated/administration & dosage
- Vaccines, Attenuated/genetics
- Vaccines, Attenuated/immunology
- Viral Nonstructural Proteins/administration & dosage
- Viral Nonstructural Proteins/genetics
- Viral Nonstructural Proteins/immunology
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Affiliation(s)
- Eun-hye Choi
- Department of Microbiology, College of Medicine and Medical Research Institute, Chungbuk National University, 12 Gaeshin-Dong Heungduk-Ku, Cheongju, 361-763, Republic of Korea
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17
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Fan X, Hu Y, Zhang G, Wang M. Veterinary influenza vaccines against avian influenza in China. Future Virol 2015. [DOI: 10.2217/fvl.15.23] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
ABSTRACT Avian influenza (AI) is an infectious viral illness that affects numerous species of birds, including chickens, ducks, turkeys and geese. Poultry vaccination plays an important role for control of the AI virus and effectively prevents the infection in domestic chickens. However, new, increasingly virulent strains are constantly emerging, for which no vaccines are available. Avian influenza is also responsible for sporadically infecting humans and causing a wide range of clinical outcomes. Here, we review the recent emergence of diverse strains of the AI virus and the use of veterinary vaccines for poultry in China.
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Affiliation(s)
- Xiaoxu Fan
- Key Laboratory of Animal Epidemiology & Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Yanxin Hu
- Key Laboratory of Animal Epidemiology & Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Guozhong Zhang
- Key Laboratory of Animal Epidemiology & Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
| | - Ming Wang
- Key Laboratory of Animal Epidemiology & Zoonosis of Ministry of Agriculture, College of Veterinary Medicine, China Agricultural University, Beijing 100193, China
- Key Laboratory of Veterinary Bioproduction & Veterinary Medicine of the Ministry of Agriculture, Zhongmu Institutes of China Animal Husbandry Industry Co., Ltd, No. 156 Beiqing Road, Haidian District, Beijing 100095, China
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18
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Leung HC, Chan CCS, Poon VKM, Zhao HJ, Cheung CY, Ng F, Huang JD, Zheng BJ. An H5N1-based matrix protein 2 ectodomain tetrameric peptide vaccine provides cross-protection against lethal infection with H7N9 influenza virus. Emerg Microbes Infect 2015; 4:e22. [PMID: 26038770 PMCID: PMC4417706 DOI: 10.1038/emi.2015.22] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 02/27/2015] [Accepted: 03/01/2015] [Indexed: 11/21/2022]
Abstract
In March 2013, a patient infected with a novel avian influenza A H7N9 virus was reported in China. Since then, there have been 458 confirmed infection cases and 177 deaths. The virus contains several human-adapted markers, indicating that H7N9 has pandemic potential. The outbreak of this new influenza virus highlighted the need for the development of universal influenza vaccines. Previously, we demonstrated that a tetrameric peptide vaccine based on the matrix protein 2 ectodomain (M2e) of the H5N1 virus (H5N1-M2e) could protect mice from lethal infection with different clades of H5N1 and 2009 pandemic H1N1 influenza viruses. In this study, we investigated the cross-protection of H5N1-M2e against lethal infection with the new H7N9 virus. Although five amino acid differences existed at positions 13, 14, 18, 20, and 21 between M2e of H5N1 and H7N9, H5N1-M2e vaccination with either Freund's adjuvant or the Sigma adjuvant system (SAS) induced a high level of anti-M2e antibody, which cross-reacted with H7N9-M2e peptide. A mouse-adapted H7N9 strain, A/Anhui/01/2013m, was used for lethal challenge in animal experiments. H5N1-M2e vaccination provided potent cross-protection against lethal challenge of the H7N9 virus. Reduced viral replication and histopathological damage of mouse lungs were also observed in the vaccinated mice. Our results suggest that the tetrameric H5N1-M2e peptide vaccine could protect against different subtypes of influenza virus infections. Therefore, this vaccine may be an ideal candidate for developing a universal vaccine to prevent the reemergence of avian influenza A H7N9 virus and the emergence of potential novel reassortants of influenza virus.
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Affiliation(s)
- Ho-Chuen Leung
- Department of Microbiology, University of Hong Kong , Hong Kong, China
| | | | | | - Han-Jun Zhao
- Department of Microbiology, University of Hong Kong , Hong Kong, China
| | - Chung-Yan Cheung
- Department of Microbiology, University of Hong Kong , Hong Kong, China
| | - Fai Ng
- Department of Microbiology, University of Hong Kong , Hong Kong, China
| | - Jian-Dong Huang
- Department of Microbiology, University of Hong Kong , Hong Kong, China
| | - Bo-Jian Zheng
- Department of Microbiology, University of Hong Kong , Hong Kong, China
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19
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Zhang N, Zheng BJ, Lu L, Zhou Y, Jiang S, Du L. Advancements in the development of subunit influenza vaccines. Microbes Infect 2014; 17:123-34. [PMID: 25529753 DOI: 10.1016/j.micinf.2014.12.006] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 12/07/2014] [Accepted: 12/08/2014] [Indexed: 12/19/2022]
Abstract
The ongoing threat of influenza epidemics and pandemics has emphasized the importance of developing safe and effective vaccines against infections from divergent influenza viruses. In this review, we first introduce the structure and life cycle of influenza A viruses, describing major influenza A virus-caused pandemics. We then compare different types of influenza vaccines and discuss current advancements in the development of subunit influenza vaccines, particularly those based on nucleoprotein (NP), extracellular domain of matrix protein 2 (M2e) and hemagglutinin (HA) proteins. We also illustrate potential strategies for improving the efficacy of subunit influenza vaccines.
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Affiliation(s)
- Naru Zhang
- Lindsley F. Kimball Research Institute, New York Blood Center, New York, NY, USA
| | - Bo-Jian Zheng
- Department of Microbiology, University of Hong Kong, Pokfulam, Hong Kong
| | - Lu Lu
- Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, Shanghai Medical College and Institute of Medical Microbiology, Fudan University, Shanghai, China
| | - Yusen Zhou
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, China
| | - Shibo Jiang
- Lindsley F. Kimball Research Institute, New York Blood Center, New York, NY, USA; Key Laboratory of Medical Molecular Virology of Ministries of Education and Health, Shanghai Medical College and Institute of Medical Microbiology, Fudan University, Shanghai, China.
| | - Lanying Du
- Lindsley F. Kimball Research Institute, New York Blood Center, New York, NY, USA.
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20
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Mirzaei N, Mokhtari Azad T, Nategh R, Soleimanjahi H, Amirmozafari N. Construction of recombinant bacmid containing m2e-ctxb and producing the fusion protein in insect cell lines. IRANIAN RED CRESCENT MEDICAL JOURNAL 2014; 16:e13176. [PMID: 24719728 PMCID: PMC3965861 DOI: 10.5812/ircmj.13176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/30/2013] [Revised: 07/27/2013] [Accepted: 11/18/2013] [Indexed: 11/16/2022]
Abstract
BACKGROUND Sequence variations in glycoproteins of influenza virus surface impel us to design new candidate vaccines yearly. Ectodomain of influenza M2 protein is a surface and highly conserved protein. M2e in influenza vaccines may eliminate the need for changing vaccine formulation every year. OBJECTIVES In this study, a recombinant baculovirus containing M2e and cholera toxin subunit B fusion gene was generated with transposition process to express in large amounts in insect cell lines. MATERIALS AND METHODS M2e-ctxB fusion gene was created and cloned into pFastBac HT. The recombinant vector was transformed into DH10Bac cells to introduce the fusion gene into the bacmid DNA via a site-specific transposition process. The recombinant bacmid was then extracted from white colonies and further analyzed using PCR, DNA sequence analyzing, and indirect immunofluorescence assay. RESULTS PCR and DNA sequence analyzing results showed that the fusion gene was constructed as a single open reading frame and was successfully inserted into bacmid DNA. Moreover, indirect immunofluorescence results showed that the fusion gene was successfully expressed. CONCLUSIONS Baculovirus expression vector system is valuable to produce M2e based influenza vaccines due to its simple utilization and ease of target gene manipulation. The expressed protein in such systems can improve the evaluating process of new vaccination strategies.
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Affiliation(s)
- Nima Mirzaei
- Department of Biology, Science and Research branch, Islamic Azad University, Tehran, IR Iran
- Corresponding Author: Nima Mirzaei, Department of Biology, Science and Research branch, Islamic Azad University, Tehran, IR Iran. Tel: +98-2188962343, E-mail:
| | - Talat Mokhtari Azad
- Department of Virology, Tehran University of Medical Sciences, Tehran, IR Iran
| | - Rakhshandeh Nategh
- Department of Virology, Tehran University of Medical Sciences, Tehran, IR Iran
| | | | - Nour Amirmozafari
- Department of Microbiology, Tehran University of Medical Sciences, Tehran, IR Iran
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21
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The minimalist architectures of viroporins and their therapeutic implications. BIOCHIMICA ET BIOPHYSICA ACTA-BIOMEMBRANES 2013; 1838:1058-67. [PMID: 24055819 PMCID: PMC3943691 DOI: 10.1016/j.bbamem.2013.09.004] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/05/2013] [Revised: 09/03/2013] [Accepted: 09/08/2013] [Indexed: 11/23/2022]
Abstract
Many viral genomes encode small, integral membrane proteins that form homo-oligomeric channels in membrane, and they transport protons, cations, and other molecules across the membrane barrier to aid various steps of viral entry and maturation. These viral proteins, collectively named viroporins, are crucial for viral pathogenicity. In the past five years, structures obtained by nuclear magnetic resonance (NMR), X-ray crystallography, and electron microscopy (EM) showed that viroporins often adopt minimalist architectures to achieve their functions. A number of small molecules have been identified to interfere with their channel activities and thereby inhibit viral infection, making viroporins potential drug targets for therapeutic intervention. The known architectures and inhibition mechanisms of viroporins differ significantly from each other, but some common principles are shared between them. This review article summarizes the recent developments in the structural investigation of viroporins and their inhibition by antiviral compounds. This article is part of a Special Issue entitled: Viral Membrane Proteins-Channels for Cellular Networking.
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