1
|
Guan L, Ping J, Lopes TJS, Fan S, Presler R, Neumann G, Kawaoka Y. Development of an Enhanced High-Yield Influenza Vaccine Backbone in Embryonated Chicken Eggs. Vaccines (Basel) 2023; 11:1364. [PMID: 37631932 PMCID: PMC10459923 DOI: 10.3390/vaccines11081364] [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: 07/18/2023] [Revised: 08/08/2023] [Accepted: 08/09/2023] [Indexed: 08/28/2023] Open
Abstract
Vaccination is an efficient approach to preventing influenza virus infections. Recently, we developed influenza A and B virus vaccine backbones that increased the yield of several vaccine viruses in Madin-Darby canine kidney (MDCK) and African green monkey kidney (Vero) cells. These vaccine backbones also increased viral replication in embryonated chicken eggs, which are the most frequently used platform for influenza vaccine manufacturing. In this study, to further increase the viral titers in embryonated chicken eggs, we introduced random mutations into the 'internal genes' (i.e., all influenza viral genes except those encoding the hemagglutinin and neuraminidase proteins) of the influenza A virus high-yield virus backbone we developed previously. The randomly mutated viruses were sequentially passaged in embryonated chicken eggs to select variants with increased replicative ability. We identified a candidate that conferred higher influenza virus growth than the high-yield parental virus backbone. Although the observed increases in virus growth may be considered small, they are highly relevant for vaccine manufacturers.
Collapse
Affiliation(s)
- Lizheng Guan
- Department of Pathobiological Sciences, School of Veterinary Medicine, Influenza Research Institute, University of Wisconsin-Madison, Madison, WI 53711, USA (T.J.S.L.); (R.P.)
| | - Jihui Ping
- Department of Pathobiological Sciences, School of Veterinary Medicine, Influenza Research Institute, University of Wisconsin-Madison, Madison, WI 53711, USA (T.J.S.L.); (R.P.)
| | - Tiago J. S. Lopes
- Department of Pathobiological Sciences, School of Veterinary Medicine, Influenza Research Institute, University of Wisconsin-Madison, Madison, WI 53711, USA (T.J.S.L.); (R.P.)
| | - Shufang Fan
- Department of Pathobiological Sciences, School of Veterinary Medicine, Influenza Research Institute, University of Wisconsin-Madison, Madison, WI 53711, USA (T.J.S.L.); (R.P.)
| | - Robert Presler
- Department of Pathobiological Sciences, School of Veterinary Medicine, Influenza Research Institute, University of Wisconsin-Madison, Madison, WI 53711, USA (T.J.S.L.); (R.P.)
| | - Gabriele Neumann
- Department of Pathobiological Sciences, School of Veterinary Medicine, Influenza Research Institute, University of Wisconsin-Madison, Madison, WI 53711, USA (T.J.S.L.); (R.P.)
| | - Yoshihiro Kawaoka
- Department of Pathobiological Sciences, School of Veterinary Medicine, Influenza Research Institute, University of Wisconsin-Madison, Madison, WI 53711, USA (T.J.S.L.); (R.P.)
- Division of Virology, Department of Microbiology and Immunology, International Research Center for Infectious Diseases, The Institute of Medical Science, University of Tokyo, Tokyo 108-8639, Japan
- The Research Center for Global Viral Diseases, National Center for Global Health and Medicine Research Institute, Tokyo 162-8655, Japan
| |
Collapse
|
2
|
Arita T, Suzuki Y, Shimasaki N, Kobayashi H, Hasegawa H, Odagiri T, Tashiro M, Nobusawa E. Identification of the properties of H5 influenza vaccine viruses with high hemagglutinin yields. PLoS One 2023; 18:e0280811. [PMID: 36662890 PMCID: PMC9858889 DOI: 10.1371/journal.pone.0280811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2022] [Accepted: 01/08/2023] [Indexed: 01/22/2023] Open
Abstract
Manufactured influenza vaccines have to contain a defined amount of hemagglutinin (HA) antigen. Therefore, vaccine viruses with a high HA antigen yield (HAY) are preferable for manufacturing vaccines, particularly vaccines in response to a pandemic, when vaccines need to be rapidly produced. However, the viral properties associated with a high HAY have not yet been fully clarified. To identify the HAY-associated traits, we first propagated 26 H5 candidate vaccine viruses (CVVs) in eggs, which were previously developed based on genetic reassortment methods using master viruses, to determine their total protein yield (TPY), ratio of HA to total viral protein (%-HA content) and HAY. The results revealed that the HAY was correlated with the TPY but not with the %-HA content. We further found that altering the sequences of the 3' noncoding region of HA vRNA or replacing the master virus improved the HAYs and TPYs of the low-HAY CVVs to approximately double the values of the original CVVs but did not change the %-HA content, which a previous study suggested was associated with the HAY. Analyses based on real-time PCR assays and scanning electron microscopy revealed that the virus samples with an improved HAY contained more copies of the virus genome and viral particles than the original samples. The results suggest that an improvement in virus growth (i.e., an increase in the amount of viral particles) leads to an increase in the TPY and thus in the HAY, regardless of the %-HA content. The approximately twofold increase in the HAY shown in this study may not appear to represent a large improvement, but the impact will be significant given the millions of chicken eggs used to produce vaccines. These findings will be informative for developing high-HAY vaccine viruses.
Collapse
Affiliation(s)
- Tomoko Arita
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Yasushi Suzuki
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Noriko Shimasaki
- Department of Virology III, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Hirotaka Kobayashi
- Department of Pathology, National Institute of Infectious Diseases, Sinjuku, Tokyo, Japan
| | - Hideki Hasegawa
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Takato Odagiri
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Masato Tashiro
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| | - Eri Nobusawa
- Research Center for Influenza and Respiratory Viruses, National Institute of Infectious Diseases, Musashi-murayama, Tokyo, Japan
| |
Collapse
|
3
|
Construction and comparison of different source neuraminidase candidate vaccine strains for human infection with Eurasian avian-like influenza H1N1 virus. Microbes Infect 2017; 19:635-640. [DOI: 10.1016/j.micinf.2017.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Revised: 08/10/2017] [Accepted: 08/22/2017] [Indexed: 11/21/2022]
|
4
|
Nakamura K, Shirakura M, Suzuki Y, Naito T, Fujisaki S, Tashiro M, Nobusawa E. Development of a high-yield reassortant influenza vaccine virus derived from the A/Anhui/1/2013 (H7N9) strain. Vaccine 2015; 34:328-33. [PMID: 26657023 DOI: 10.1016/j.vaccine.2015.11.050] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 11/16/2015] [Accepted: 11/19/2015] [Indexed: 11/16/2022]
Abstract
In April 2013, the first three fatal cases of human infection with an avian influenza A virus (H7N9) were reported in China. Because of a pandemic threat by this virus, we have commenced to develop candidate vaccine viruses (CVVs). Three 6:2 genetic reassortant viruses with different hemagglutinin (HA) sequences, NIIDRG-10, -10.1 and -10.2, were generated by a reverse genetics technique between the high egg-growth master virus, A/Puerto Rico/8/34 (H1N1) and A/Anhui/1/2013 (H7N9), kindly provided by the Chinese Center for Disease Control and Prevention. The different HA gene sequences of the three CVVs were derived from the original virus stock. NIIDRG-10 possesses HA, whose sequence is identical to that of the original A/Anhui/1/2013 (H7N9) in the Global Initiative on Sharing Avian Influenza Data (EPI439507), while NIIDRG-10.1 and -10.2 possess amino acid differences, A125T and N123D/N149D, respectively, compared with NIIDRG-10. NIIDRG-10 replicated in embryonated chicken eggs with low hemagglutination titer 128, whereas NIIDRG-10.1 and -10.2 grew well with hemagglutination titer 1024. These viruses reacted well with a ferret antiserum raised against the original A/Anhui/1/2013 virus. Ferret antiserum against NIIDRG-10.1 reacted well with A/Anhui/1/2013 similar to the homologous virus NIIDRG-10.1. These results indicated that NIIDRG-10.1 passed the two-way test of antigenic identity. In contrast, the ferret antiserum against NIIDRG-10.2 reacted with A/Anhui/1/2013 at an 8-fold lower hemagglutination inhibition titer than with the homologous virus NIIDRG-10.2, indicating an antigenic change. The total and HA protein yields of NIIDRG-10.1 were 14.7 and 6.9 μg/ml, respectively, similar to those levels of high-yield seed viruses of seasonal influenza vaccines. NIIDRG-10.1 was approved as one of the CVVs for H7N9 viruses by the WHO in 2013. The candidate vaccine derived from NIIDRG-10.1 is currently being evaluated in a phase II clinical study in Japan.
Collapse
Affiliation(s)
- Kazuya Nakamura
- Influenza Virus Research Center, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo 208-0011, Japan
| | - Masayuki Shirakura
- Influenza Virus Research Center, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo 208-0011, Japan
| | - Yasushi Suzuki
- Influenza Virus Research Center, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo 208-0011, Japan
| | - Tadasuke Naito
- Influenza Virus Research Center, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo 208-0011, Japan
| | - Seiichiro Fujisaki
- Influenza Virus Research Center, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo 208-0011, Japan
| | - Masato Tashiro
- Influenza Virus Research Center, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo 208-0011, Japan
| | - Eri Nobusawa
- Influenza Virus Research Center, National Institute of Infectious Diseases, Gakuen 4-7-1, Musashi-murayama, Tokyo 208-0011, Japan.
| |
Collapse
|