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Lyu F, Zhao YH, Zuo XX, Nyide B, Deng BH, Zhou MX, Hou J, Jiao JJ, Zeng MQ, Jie HY, Olaniran A, Lu Y, Khoza T. Thermostable vacuum foam dried Newcastle disease vaccine: Process optimization and pilot-scale study. Appl Microbiol Biotechnol 2024; 108:359. [PMID: 38836885 PMCID: PMC11153293 DOI: 10.1007/s00253-024-13174-7] [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: 09/15/2023] [Revised: 04/24/2024] [Accepted: 05/04/2024] [Indexed: 06/06/2024]
Abstract
Vacuum foam drying (VFD) has been shown to improve the thermostability and long-term shelf life of Newcastle Disease Virus (NDV). This study optimized the VFD process to improve the shelf life of NDV at laboratory-scale and then tested the optimized conditions at pilot-scale. The optimal NDV to T5 formulation ratio was determined to be 1:1 or 3:2. Using the 1:1 virus to formulation ratio, the optimal filling volumes were determined to be 13-17% of the vial capacity. The optimized VFD process conditions were determined to be at a shelf temperature of 25℃ with a minimum overall drying time of 44 h. The vaccine samples prepared using these optimized conditions at laboratory-scale exhibited virus titer losses of ≤ 1.0 log10 with residual moisture content (RMC) below 3%. Furthermore, these samples were transported for 97 days around China at ambient temperature without significant titer loss, thus demonstrating the thermostability of the NDV-VFD vaccine. Pilot-scale testing of the NDV-VFD vaccine at optimized conditions showed promising results for up-scaling the process as the RMC was below 3%. However, the virus titer loss was slightly above 1.0 log10 (approximately 1.1 log10). Therefore, the NDV-VFD process requires further optimization at pilot scale to obtain a titer loss of ≤ 1.0 log10. Results from this study provide important guidance for possible industrialization of NDV-VFD vaccine in the future. KEY POINTS: • The process optimization and scale-up test of thermostable NDV vaccine prepared through VFD is reported for the first time in this study. • The live attenuated NDV-VFD vaccine maintained thermostability for 97 days during long distance transportation in summer without cold chain conditions. • The optimized NDV-VFD vaccine preparations evaluated at pilot-scale maintained acceptable levels of infectivity after preservation at 37℃ for 90 days, which demonstrated the feasibility of the vaccine for industrialization.
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Affiliation(s)
- Fang Lyu
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- Department of Biochemistry, School of Life Sciences, College of Agriculture, Engineering & Science, University of KwaZulu-Natal, Pietermaritzburg, 3209, South Africa
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, Taizhou, 225300, China
- School of Animal Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Yan-Hong Zhao
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- School of Animal Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Xiao-Xin Zuo
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- Jiangsu Key Laboratory for Food Quality and Safety-State Key Laboratory Cultivation Base, Ministry of Science and Technology, Nanjing, 210014, China
| | - Babalwa Nyide
- Department of Biochemistry, School of Life Sciences, College of Agriculture, Engineering & Science, University of KwaZulu-Natal, Pietermaritzburg, 3209, South Africa
| | - Bi-Hua Deng
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, Taizhou, 225300, China
- School of Animal Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Ming-Xu Zhou
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, Taizhou, 225300, China
| | - Jibo Hou
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Jia-Jie Jiao
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- School of Animal Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Min-Qian Zeng
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
- School of Animal Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China
| | - Hong-Ying Jie
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China
| | - Ademola Olaniran
- Department of Microbiology, School of Life Sciences, Engineering & Science, College of Agriculture, University of KwaZulu-Natal, Durban, 4000, South Africa
| | - Yu Lu
- Institute of Veterinary Immunology & Engineering, National Research Center of Engineering and Technology for Veterinary Biologicals, Jiangsu Academy of Agricultural Sciences, Nanjing, 210014, China.
- GuoTai (Taizhou) Center of Technology Innovation for Veterinary Biologicals, Taizhou, 225300, China.
- School of Animal Medicine, Nanjing Agricultural University, Nanjing, 210095, Jiangsu, China.
- School of Pharmacy, Jiangsu University, Zhenjiang, 212013, China.
| | - Thandeka Khoza
- Department of Biochemistry, School of Life Sciences, College of Agriculture, Engineering & Science, University of KwaZulu-Natal, Pietermaritzburg, 3209, South Africa.
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Anyika KC, Okaiyeto SO, Sackey AKB, Kwanashie CN, Luka PD, Ankeli PI. Isolation and identification of Mycoplasma mycoides subsp. mycoides in cattle from south-east Nigeria. Open Vet J 2021; 11:174-179. [PMID: 33898300 PMCID: PMC8057223 DOI: 10.4314/ovj.v11i1.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Accepted: 03/05/2021] [Indexed: 11/17/2022] Open
Abstract
Background Mycoplasma mycoides subsp. mycoides is the causative organism of Contagious Bovine Pleuropneumonia (CBPP). It is a trans-boundary disease and an endemic in Nigeria having caused serious financial loss for the country's economy. Aim This study was undertaken to isolate and confirm the presence of M. mycoides subsp. mycoides (Mmm) in cattle, from three selected South-Eastern states of Nigeria. Method A total of 90 bovine samples (25 pleural fluids and 65 lung tissues) suggestive of CBPP were collected from different abattoirs in the three selected South-eastern states of Nigeria (Anambra, Enugu, and Imo), for the isolation of Mmm by employing cultural method, whereas for confirmation polymerase chain reaction (PCR) approach was used. The collected samples were cultured on Pleuropneumonia like organism (PPLO) agar according to specific protocols. Results Twenty five of the samples (lungs and pleural fluid) were positive for Mmm on PPLO agar giving an isolation rate of 27.7%. Only 21 of the isolates were further confirmed using PCR. The PCR amplification of the isolates produced a product of 1.1 kbp which is specific for Mmm. No positive isolates were recovered from Imo state. Conclusion This study confirms the presence of Mmm as the causative organism of CBPP in Southeast Nigeria. It is recommended that active surveillance and vaccination protocol should be undertaken in the region for the control and prevention of this disease.
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Affiliation(s)
- Kingsley C. Anyika
- Livestock Investigation Division, National Veterinary Research Institute Vom, Vom, Nigeria
| | | | | | - Clara N. Kwanashie
- Department of Veterinary Microbiology, Ahmadu Bello University, Zaria, Nigeria
| | - Pam D. Luka
- Molecular Biotechnology Division, National Veterinary Research Institute Vom, Vom, Nigeria
| | - Paul I. Ankeli
- Bacterial Vaccine Production Division, National Veterinary Reseasrch Institute Vom, Vom, Nigeria
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Lv F, Lu Y, Hao ZL, Zhao YH, Zhang LH, Feng L, Chen J, Wang LL, Rui R, Hou JB. Preparation and heat resistance study of porcine reproductive and respiratory syndrome virus sugar glass vaccine. Vaccine 2016; 34:3746-50. [PMID: 27318421 DOI: 10.1016/j.vaccine.2016.06.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2016] [Revised: 05/19/2016] [Accepted: 06/01/2016] [Indexed: 10/21/2022]
Abstract
To improve the preservation period without cold-chain of the live attenuated vaccine of porcine reproductive and respiratory syndrome (PRRS), a set of thermostable formulations composed of trehalose, tryptone and other protectants were dried by vacuum foam drying (VFD) along with PRRSV solutions. In the 37°C and 45°C resistance ageing test, the dried foam vaccine showed significant thermostability, and the virus titer lost 0.8 Log10 at 37°C for 4months, 1.0 Log10 at 45°C for 25days. Furthermore, the foam vaccine could be stored at 25°C for at least one year. Besides, the vaccine preserved in 37°C, 25°C and 4°C for 3months were inoculated on 20-days old piglet, and the serum titer was monitoring by ELISA kit. Inoculated two weeks later, the ELISA titer were all qualified and had the similar level compared to the commercial vaccines of the lyophilization dosage.
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Affiliation(s)
- Fang Lv
- National Research Center of Veterinary Biologicals Engineering and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Yu Lu
- National Research Center of Veterinary Biologicals Engineering and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Zheng-Lin Hao
- National Research Center of Veterinary Biologicals Engineering and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Nanjing Agricultural University, Nanjing, China
| | - Yan-Hong Zhao
- National Research Center of Veterinary Biologicals Engineering and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | | | - Lei Feng
- National Research Center of Veterinary Biologicals Engineering and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Jin Chen
- National Research Center of Veterinary Biologicals Engineering and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Li-Li Wang
- National Research Center of Veterinary Biologicals Engineering and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Rong Rui
- Nanjing Agricultural University, Nanjing, China
| | - Ji-Bo Hou
- National Research Center of Veterinary Biologicals Engineering and Technology, Jiangsu Academy of Agricultural Sciences, Nanjing, China; Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.
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Vasiliev YM. Chitosan-based vaccine adjuvants: incomplete characterization complicates preclinical and clinical evaluation. Expert Rev Vaccines 2014; 14:37-53. [PMID: 25262982 DOI: 10.1586/14760584.2015.956729] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A number of preclinical and clinical studies with chitosan-adjuvanted antigen- and DNA-based vaccines have been carried out. Various chitosans and their modifications, in different forms (solutions, powders, gels and particles), have been evaluated with various antigens administered via different routes. Chitosan is a generic name for a wide array of glucosamine-based substances derived from biological sources, and standardization is necessary. However, in most of the studies published to date, molecular weight, viscosity, deacetylation degree and/or purity level (especially endotoxins) are not provided for the initial chitosan substance and/or final formulation and the preparation procedure is not detailed. Evaluation of adjuvant properties is challenging, given that the only available data are insufficient to demonstrate immunogenicity for chitosans with characteristics within certain intervals to elucidate mechanisms of action or to exclude impurities as the active substance. These and other issues of chitosan-based vaccine adjuvants are summarized and a step-by-step evaluation approach for chitosan-based vaccine adjuvants is outlined.
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Affiliation(s)
- Yuri M Vasiliev
- Mechnikov Research Institute of Vaccines and Sera, M. Kazeny lane, 5a, Moscow, 105064, Russian Federation
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