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Zhang J, Cui D, Zuo Y, Zheng Z, Wu F, Li W, Zhang Y, Huo S, Li N, Li L, Guan Y, Zhong F. Donkey-derived anti-CDV IgG, as a passive immunotherapy agent, can effectively increase survival rates of the experimental CDV-infected dogs. BMC Vet Res 2021; 17:266. [PMID: 34362358 PMCID: PMC8344326 DOI: 10.1186/s12917-021-02982-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 07/27/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Humoral immunity plays an important role in the prevention of canine distemper. Anti-CD virus (CDV) antibody has strong antiviral activity and is widely used in the treatment of CD. However, with the increase of CD cases, the availability of therapeutic CD antibody fell short of the clinical needs. RESULTS The high-titer antiserum with the high-titer neutralizing activity against CDV was obtained from the donkeys (Dezhou Donkey) immunized with the inactivated CDV vaccine. The donkey anti-CDV IgG was purified from the donkey serum, which was identified to significantly inhibit the CDV replication in the cultured Vero cells and effectively reduce the clinical symptoms and increase the survival rates (75%) of CDV-infected dogs (Shih-tzu Dog), similar to that treated with the dog-derived anti-CDV IgG. These results indicate that donkey-derived IgG is a potential substitute for dog-derived IgG to treat the CD in clinic. CONCLUSIONS Administration of donkey-derived anti-CDV IgG can ameliorate clinical symptoms and inhibit virus replication, thereby increasing the survival of CDV-infected dogs. This study opens up a new source of therapeutic antibody for CD treatment.
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Affiliation(s)
- Jianlou Zhang
- School of Veterinary Medicine, Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Dan Cui
- School of Veterinary Medicine, Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Yuzhu Zuo
- School of Veterinary Medicine, Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Zhiqiang Zheng
- School of Veterinary Medicine, Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Fengyang Wu
- School of Animal Science and Technology, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Wenyan Li
- School of Veterinary Medicine, Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
- School of Basic Medicine, Hebei University, 342 Yuhua East Road, Baoding, 071002, Hebei, China
| | - Yonghong Zhang
- School of Veterinary Medicine, Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Shanshan Huo
- School of Veterinary Medicine, Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Nan Li
- School of Animal Science and Technology, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Lanhui Li
- School of Animal Science and Technology, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China
| | - Yueqiang Guan
- School of Life Science, Hebei University, 180 Wusi East Road, Baoding, 071002, Hebei, China.
| | - Fei Zhong
- School of Veterinary Medicine, Hebei Veterinary Biotechnology Innovation Center, Hebei Agricultural University, 289 Lingyusi Streat, Baoding, 071001, Hebei, China.
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Bergmann M, Freisl M, Hartmann K. [Prevention of canine parvovirosis - Part 1: Humoral and cellular immunity]. TIERAERZTLICHE PRAXIS AUSGABE KLEINTIERE HEIMTIERE 2021; 49:44-50. [PMID: 33588464 DOI: 10.1055/a-1319-4564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Canine parvovirosis remains a common and highly infectious disease. Thus, adequate protection is essential for all dogs at any time. In this, humoral immunity plays an essential role. The presence of antibodies in adult dogs suggests immunity against the disease, and nearly all adult dogs possess antibodies (either due to previous vaccination or infection). Meanwhile, worldwide vaccination guidelines recommend measurement of pre-vaccination antibodies instead of regular triennial re-vaccinations in adult dogs. Studies have demonstrated a long lasting duration of immunity against canine parvovirus. Re-vaccination therefore possesses no beneficial effect when dogs already have pre-vaccination antibodies. Thus, when antibodies are present, unnecessary re-vaccinations that potentially cause vaccine-associated adverse events should be avoided. Hemagglutination inhibition and virus neutralization can be performed in specialized laboratories for quantitative antibody titer measurement. Semiquantitative point-of-care (POC) tests for detection of CPV antibodies are available. Since the presence of CPV antibodies in adult dogs that have been vaccinated or previously infected suggests adequate immunity against disease, these POC tests can be a useful tool in practice. They identify dogs that might potentially be unprotected and require re-vaccination during preventive health care appointments. Concerning the POC tests' quality assessment, a high specificity (low number of false positive test results) is considered the most important feature.
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Affiliation(s)
- Michèle Bergmann
- Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München
| | - Monika Freisl
- Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München
| | - Katrin Hartmann
- Medizinische Kleintierklinik, Ludwig-Maximilians-Universität München
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