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Racine T, Denizot M, Pannetier D, Nguyen L, Pasquier A, Raoul H, Saluzzo JF, Kobinger G, Veas F, Herbreteau CH. In Vitro Characterization and In Vivo Effectiveness of Ebola Virus Specific Equine Polyclonal F(ab')2. J Infect Dis 2020; 220:41-45. [PMID: 30852585 DOI: 10.1093/infdis/jiz068] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 02/11/2019] [Indexed: 12/21/2022] Open
Abstract
There is no vaccine or approved therapy against lethal Ebola virus (EBOV). We investigated a proven technology platform to produce polyclonal IgG fragments, F(ab')2, against EBOV. Horses immunized with nanoparticles harboring surface glycoprotein trimers of EBOV-Zaire/Makona produced anti-Ebola IgG polyclonal antibodies with high neutralization activity. Highly purified equine anti-Ebola F(ab')2 showed strong cross-neutralization of 2 Zaire EBOV strains (Gabon 2001 and Makona) and in vivo 3 or 5 daily F(ab')2 intraperitoneal injections provided 100% protection to BALB/c mice against lethal EBOV challenge. Rapid preparation of purified equine anti-Ebola F(ab')2 offers a potentially efficient therapeutic approach against EBOV disease in humans.
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Affiliation(s)
- Trina Racine
- Special Pathogens Program, National Microbiology Laboratory, Winnipeg, Canada.,Department of Medical Microbiology, Winnipeg, Canada.,Centre de Recherche en Infectiologie, Centre Hospitalier Universitaire de Québec, Université Laval, Canada
| | | | | | | | | | - Hervé Raoul
- INSERM, Jean Mérieux BSL-4 Laboratory, Lyon, France
| | | | - Gary Kobinger
- Department of Medical Microbiology, Winnipeg, Canada.,Department of Immunology, University of Manitoba, Winnipeg, Canada.,Centre de Recherche en Infectiologie, Centre Hospitalier Universitaire de Québec, Université Laval, Canada.,Department of Pathology and Laboratory Medicine, University of Pennsylvania School of Medicine, Philadelphia
| | - Francisco Veas
- Institut de Recherche pour le Développement, UMR-Ministère de la Défense, Faculté de Pharmacie, Université de Montpellier, France
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Zhang XJ, Li HL, Deng DY, Ji C, Yao XD, Liu JX. Functional and proteomic comparison of different techniques to produce equine anti-tetanus immunoglobulin F(ab')2 fragments. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1092:29-39. [PMID: 29883887 DOI: 10.1016/j.jchromb.2018.05.041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 05/15/2018] [Accepted: 05/28/2018] [Indexed: 11/17/2022]
Abstract
Tetanus is still a major cause of human deaths in several developing countries. In particular, the neonatal form remains a significant public health problem. According to the World Health Organization, administration of tetanus toxoid is recommended for neonatal tetanus patients. Furthermore, tetanus antitoxin or anti-tetanus immunoglobulin (Ig) are used for mild case or intensive care. This paper discusses a novel purification technique for improving equine anti-tetanus Ig production. First, equine plasma dealt with two steps salting out with ammonium sulfate; second, ultrafiltration concentration liquid purified by one successive protein G based affinity chromatography steps; finally, the purified F(ab')2 fragments was characterized using biochemical and proteomic methods and shown to be pure and homogeneous. Compared with the original technique product, specific activity increased by 80% (about 90,000 IU/g) and recovery of F(ab')2 is approximately equal 75%. Furthermore, Proteomic profiling of total technique process is demonstrated by nano-HPLC-MS and bioinformatics analysis. New technique to produce equine anti-tetanus immunoglobulin F(ab')2 fragments from crude plasma in high quality and yield. And it also could be used for industrial amplification.
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Affiliation(s)
- Xue-Jun Zhang
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College, Chengdu, Sichuan province, PR China.
| | - Hai-Ling Li
- College of Environment and Ecology, Chengdu University of Technology, Chengdu, Sichuan province, PR China; West China School of Basic Medical Sciences & Forensic Medicine, Sichuan University, Chengdu, Sichuan province, PR China
| | - Da-Yi Deng
- Jiangxi Institute of Biological Products, Ji'an, Jiangxi province, PR China
| | - Chong Ji
- Jiangxi Institute of Biological Products, Ji'an, Jiangxi province, PR China
| | - Xiao-Dong Yao
- Jiangxi Institute of Biological Products, Ji'an, Jiangxi province, PR China
| | - Jia-Xin Liu
- Institute of Blood Transfusion, Chinese Academy of Medical Sciences & Peking Union Medical College, Chengdu, Sichuan province, PR China
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Cui J, Zhao Y, Wang H, Qiu B, Cao Z, Li Q, Zhang Y, Yan F, Jin H, Wang T, Sun W, Feng N, Gao Y, Sun J, Wang Y, Perlman S, Zhao J, Yang S, Xia X. Equine Immunoglobulin and Equine Neutralizing F(ab')₂ Protect Mice from West Nile Virus Infection. Viruses 2016; 8:v8120332. [PMID: 27999340 PMCID: PMC5192393 DOI: 10.3390/v8120332] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 12/13/2016] [Indexed: 12/16/2022] Open
Abstract
West Nile virus (WNV) is prevalent in Africa, Europe, the Middle East, West Asia, and North America, and causes epidemic encephalitis. To date, no effective therapy for WNV infection has been developed; therefore, there is urgent need to find an efficient method to prevent WNV disease. In this study, we prepared and evaluated the protective efficacy of immune serum IgG and pepsin-digested F(ab′)2 fragments from horses immunized with the WNV virus-like particles (VLP) expressing the WNV M and E proteins. Immune equine F(ab′)2 fragments and immune horse sera efficiently neutralized WNV infection in tissue culture. The passive transfer of equine immune antibodies significantly accelerated the virus clearance in the spleens and brains of WNV infected mice, and reduced mortality. Thus, equine immunoglobulin or equine neutralizing F(ab′)2 passive immunotherapy is a potential strategy for the prophylactic or therapeutic treatment of patients infected with WNV.
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Affiliation(s)
- Jiannan Cui
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China.
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
| | - Yongkun Zhao
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
| | - Hualei Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
| | - Boning Qiu
- College of Veterinary Medicine, Jilin University, Changchun 130062, China.
| | - Zengguo Cao
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
| | - Qian Li
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
| | - Yanbo Zhang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
| | - Feihu Yan
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
| | - Hongli Jin
- College of Veterinary Medicine, Jilin University, Changchun 130062, China.
| | - Tiecheng Wang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
| | - Weiyang Sun
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
| | - Na Feng
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
| | - Yuwei Gao
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
| | - Jing Sun
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
| | - Yanqun Wang
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
| | - Stanley Perlman
- Department of Microbiology, University of Iowa, Iowa City, IA 52242, USA.
| | - Jincun Zhao
- State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China.
| | - Songtao Yang
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
| | - Xianzhu Xia
- Institute of Military Veterinary, Academy of Military Medical Sciences, Changchun 130122, China.
- Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Disease and Zoonoses, Yangzhou 225009, China.
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