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Ze L, Shaohui S, Jinhai H, Hui G. Evaluation of the cross-protection of the Vero cell-derived attenuated influenza vaccines with compound adjuvant, through intranasal immunization. APMIS 2024. [PMID: 38961516 DOI: 10.1111/apm.13448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 06/03/2024] [Indexed: 07/05/2024]
Abstract
This study was to evaluate the sufficient safety and effect of the novel influenza vaccine program. It prepared new reassortant influenza virus, with high yield on Vero cells. According to the plaque counting, one dose LAIV was composed with 105 PFU of H1, H3, BY, and BV, respectively. Then mixed this LAIV with compound adjuvant, containing 500 μg/mL of carbopol971P and 50 μg/mL of tetanus toxin. That vaccination was called catt-flu. And it employed the GYZZ02 vaccine (commercialized freeze-dried LAIV, listed in China) as cohort analysis control. All mice received two doses of the vaccine, administered on days 0 and 14, respectively. That catt-flu program could induce more cross-protection with neutralizing antibody against heterogeneous types of influenza virus, not only based on HA but also NA protective antigen, through convenient nasal immunization, which had non-inferiority titter compared with the chicken embryo-derived GYZZ02 vaccine on safe and effect. The Vero cell-derived vaccine (LAIV) combined compound catt adjuvant (contain carbopol971P and tetanus toxin) could provide another safety and protective program of influenza vaccine by intranasal administration, as catt-flu program.
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Affiliation(s)
- Liu Ze
- School of Life Sciences, Tianjin University, Tianjin, China
- The Zhongyi Anke Biotech Co., Ltd, Tianjin, China
| | - Song Shaohui
- Institute of Medical Biology, Chinese Academy of Medical Science and Peking Union Medical College, Kunming, Yunnan, China
| | - Huang Jinhai
- School of Life Sciences, Tianjin University, Tianjin, China
| | - Gao Hui
- The Zhongyi Anke Biotech Co., Ltd, Tianjin, China
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Zhang J, Li Q, Zhu R, Xu S, Wang S, Shi H, Liu X. Loss of amino acids 67-76 in the neuraminidase protein under antibody selection pressure alters the tropism, transmissibility and innate immune response of H9N2 avian influenza virus in chickens. Vet Microbiol 2023; 284:109832. [PMID: 37473515 DOI: 10.1016/j.vetmic.2023.109832] [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: 05/23/2023] [Revised: 07/14/2023] [Accepted: 07/15/2023] [Indexed: 07/22/2023]
Abstract
H9N2 virus has become the most widespread subtype of avian influenza in Chinese poultry. Although many studies have been published on this disease, the pathogenesis of the H9N2 virus remains to be fully understood. In our previous work, we identified 44 viral strains with 67-76 amino acid deletions in the neuraminidase protein (NA∆67-76) from trachea and lung tissues after 20 successive generations in vaccinated chickens. Interestingly, these 10 amino acid deletions are located in the stalk of the NA protein, and all mutations were unique to the viruses under the selection pressure of vaccine antibodies. To investigate the effect of NA∆67-76 on the H9N2 virus, the NA∆67-76 deletion mutant (rF/NAΔ67-76) was constructed in the H9N2 virus A/Chicken/Shanghai/F/98 (F/98) to assess the phenotypic changes between the parental and mutant strains. The results showed that the recombinant virus rF/NAΔ67-76 had no significantly effect on the antigenicity of the virus or on the infectivity of the host cells, but it significantly inhibited the release of virions from host cells. In addition, rF/NAΔ67-76 efficiently enhanced the neuraminidase activity and improved the receptor binding ability of the virus, indicating that the influence of receptor binding ability on the rF/NAΔ67-76 virus is much greater than that of neuraminidase activity. Furthermore, this study revealed that rF/NAΔ67-76 reduced the viral replication ability at 6 and 12 h post-infection, but improved it at 24, 48, and 72 h post-infection. Chicken experiments showed that rF/NAΔ67-76 exhibits a much higher tissue tropism for the trachea rather than lung tissue. rF/NAΔ67-76 still had the ability to infect the upper respiratory tract through aerosol, but its cloaca replication capacity was significantly reduced. Both in vivo and in vitro experiments confirmed that rF/NAΔ67-76 could produce a stronger innate immune response after infecting cells and chickens, especially significantly enhancing the transcription levels of TLR3, TLR4, TLR7, TLR21, MDA5, and NLRP3. Altogether, the results of this study propose that antibody selection pressure plays an important role in the evolution of H9N2 avian influenza virus.
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Affiliation(s)
- Jianjun Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
| | - Quan Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Rui Zhu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China
| | - Shunshun Xu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
| | - Shifeng Wang
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL 32611-0880, USA
| | - Huoying Shi
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China; Joint International Research Laboratory of Agriculture & Agri-Product Safety (JIRLAAPS), Yangzhou University, Yangzhou, Jiangsu 225009, China.
| | - Xiufan Liu
- College of Veterinary Medicine, Yangzhou University, Yangzhou, Jiangsu 225009, China; Jiangsu Co-innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, Jiangsu 225009, China
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Chen PL, Tzeng TT, Hu AYC, Wang LHC, Lee MS. Development and Evaluation of Vero Cell-Derived Master Donor Viruses for Influenza Pandemic Preparedness. Vaccines (Basel) 2020; 8:vaccines8040626. [PMID: 33113866 PMCID: PMC7712210 DOI: 10.3390/vaccines8040626] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 10/11/2020] [Accepted: 10/16/2020] [Indexed: 11/16/2022] Open
Abstract
The embryonated egg-based platform currently produces the majority of seasonal influenza vaccines by employing a well-developed master donor virus (MDV, A/PR/8/34 (PR8)) to generate high-growth reassortants (HGRs) for A/H1N1 and A/H3N2 subtypes. Although the egg-based platform can supply enough seasonal influenza vaccines, it cannot meet surging demands during influenza pandemics. Therefore, multi-purpose platforms are desirable for pandemic preparedness. The Vero cell-based production platform is widely used for human vaccines and could be a potential multi-purpose platform for pandemic influenza vaccines. However, many wild-type and egg-derived influenza viruses cannot grow efficiently in Vero cells. Therefore, it is critical to develop Vero cell-derived high-growth MDVs for pandemic preparedness. In this study, we evaluated two in-house MDVs (Vero-15 and VB5) and two external MDVs (PR8 and PR8-HY) to generate Vero cell-derived HGRs for five avian influenza viruses (AIVs) with pandemic potentials (H5N1 clade 2.3.4, H5N1 clade 2.3.2.1, American-lineage H5N2, H7N9 first wave and H7N9 fifth wave). Overall, no single MDV could generate HGRs for all five AIVs, but this goal could be achieved by employing two in-house MDVs (vB5 and Vero-15). In immunization studies, mice received two doses of Vero cell-derived inactivated H5N1 and H7N9 whole virus antigens adjuvanted with alum and developed robust antibody responses.
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Affiliation(s)
- Po-Ling Chen
- National Institution of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Zhunan, Miaoli 35053, Taiwan; (P.-L.C.); (T.-T.T.); (A.Y.-C.H.)
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300044, Taiwan;
| | - Tsai-Teng Tzeng
- National Institution of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Zhunan, Miaoli 35053, Taiwan; (P.-L.C.); (T.-T.T.); (A.Y.-C.H.)
| | - Alan Yung-Chih Hu
- National Institution of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Zhunan, Miaoli 35053, Taiwan; (P.-L.C.); (T.-T.T.); (A.Y.-C.H.)
| | - Lily Hui-Ching Wang
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu 300044, Taiwan;
| | - Min-Shi Lee
- National Institution of Infectious Diseases and Vaccinology, National Health Research Institutes (NHRI), Zhunan, Miaoli 35053, Taiwan; (P.-L.C.); (T.-T.T.); (A.Y.-C.H.)
- Correspondence: ; Tel.: +886-37-206-166
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Pawar S, Hsu L, Narendar Reddy T, Ravinder M, Ren CT, Lin YW, Cheng YY, Lin TW, Hsu TL, Wang SK, Wong CH, Wu CY. Synthesis of Asymmetric N-Glycans as Common Core Substrates for Structural Diversification through Selective Enzymatic Glycosylation. ACS Chem Biol 2020; 15:2382-2394. [PMID: 32830946 DOI: 10.1021/acschembio.0c00359] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
N-glycans on the cell surface provide distinct signatures that are recognized by different glycan-binding proteins (GBPs) and pathogens. Most glycans in humans are asymmetric and isomeric, yet their biological functions are not well understood due to their lack of availability for studies. In this work, we have developed an improved strategy for asymmetric N-glycan assembly and diversification using designed common core substrates prepared chemically for selective enzymatic fucosylation and sialylation. The resulting 26 well-defined glycans that carry the sialic acid residue on different antennae were used in a microarray as a representative application to profile the binding specificity of hemagglutinin (HA) from the avian influenza virus (H5N2). We found distinct binding affinity for the Neu5Ac-Gal epitope linked to the N-acetylglucosamine (GlcNAc) of different branches and only a minor effect in binding for the terminal galactose on different branches. Overall, the microarray analysis showed branch-biased and context-based recognition patterns.
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Affiliation(s)
- Sujeet Pawar
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan
- Department of Chemistry, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan
| | - Li Hsu
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
- Department of Chemistry, National Taiwan University, Taipei, 106 Taiwan
| | - Thatikonda Narendar Reddy
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
| | - Mettu Ravinder
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
| | - Chien-Tai Ren
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
| | - Yu-Wei Lin
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
| | - Yang-Yu Cheng
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
| | - Tzu-Wen Lin
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
| | - Tsui-Ling Hsu
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
| | - Sheng-Kai Wang
- Department of Chemistry, National Tsing Hua University, No. 101, Section 2, Kuang-Fu Road, Hsinchu, Taiwan
| | - Chi-Huey Wong
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Chung-Yi Wu
- Genomics Research Center, Academia Sinica, No. 128, Academia Road, Section 2, Nankang District, Taipei, 11529 Taiwan
- Chemical Biology and Molecular Biophysics, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan
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