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Protective potential of recombinant non-purified botulinum neurotoxin serotypes C and D.

作者信息

Moreira Clóvis, da Cunha Carlos Eduardo Pouey, Moreira Gustavo Marçal Schmidt Garcia, Mendonça Marcelo, Salvarani Felipe Masiero, Moreira Ângela Nunes, Conceição Fabricio Rochedo

机构信息

Centro de Desenvolvimento Tecnológico, Núcleo de Biotecnologia, Universidade Federal de Pelotas, Pelotas, RS, Brazil.

Faculdade de Medicina Veterinária, Universidade Federal do Pará, Castanhal, PA, Brazil.

出版信息

Anaerobe. 2016 Aug;40:58-62. doi: 10.1016/j.anaerobe.2016.05.012. Epub 2016 May 25.


DOI:10.1016/j.anaerobe.2016.05.012
PMID:27236078
Abstract

Botulinum neurotoxin (BoNT) serotypes C and D are responsible for cattle botulism, a fatal paralytic disease that results in great economic losses in livestock production. Vaccination is the main approach to prevent cattle botulism. However, production of commercially available vaccines (toxoids) involves high risk and presents variation of BoNT production between batches. Such limitations can be attenuated by the development of novel nontoxic recombinant vaccines through a simple and reproducible process. The aim of this study was to evaluate the protective potential of recombinant non-purified botulinum neurotoxin serotypes C and D. Bivalent vaccines containing 200 μg rHCC and rHCD each were formulated in three different ways: (1) purified antigens; (2) recombinant Escherichia coli bacterins; (3) recombinant E. coli cell lysates (supernatant and inclusion bodies). Guinea pigs immunized subcutaneously with recombinant formulations developed a protective immune response against the respective BoNTs as determined by a mouse neutralization bioassay with pooled sera. Purified recombinant antigens were capable of inducing 13 IU/mL antitoxin C and 21 IU/mL antitoxin D. Similarly, both the recombinant bacterins and the cell lysate formulations were capable of inducing 12 IU/mL antitoxin C and 20 IU/mL antitoxin D. These values are two times as high as compared to values induced by the commercial toxoid used as control, and two to ten times as high as the minimum amount required by the Brazilian Ministry of Agriculture, Livestock and Food Supply (MAPA), respectively. Therefore, we used a practical, industry-friendly, and efficient vaccine production process that resulted in formulations capable of inducing protective immune response (neutralizing antitoxins) against botulism serotypes C and D.

摘要

相似文献

[1]
Protective potential of recombinant non-purified botulinum neurotoxin serotypes C and D.

Anaerobe. 2016-8

[2]
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[3]
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[4]
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[5]
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[6]
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[7]
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[8]
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[9]
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[10]
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[1]
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BMC Vet Res. 2025-5-28

[2]
Effectiveness of a Bivalent Recombinant Vaccine on the Production of Neutralizing Antibodies Against BoNT/C, BoNT/D, BoNT/CD e BoNT/DC in Bovines.

Vaccines (Basel). 2025-3-11

[3]
Large Clostridial Toxins: A Brief Review and Insights into Antigen Design for Veterinary Vaccine Development.

Mol Biotechnol. 2024-10-29

[4]
Chimeric lipoproteins for leptospirosis vaccine: immunogenicity and protective potential.

Appl Microbiol Biotechnol. 2024-7-22

[5]
Evaluation of Aluminium Hydroxide Nanoparticles as an Efficient Adjuvant to Potentiate the Immune Response against Serotypes C and D Toxoid Vaccines.

Vaccines (Basel). 2023-9-10

[6]
Recombinant Escherichia coli Cell Lysates as a Low-Cost Alternative for Vaccines Against Veterinary Clostridial Diseases.

Methods Mol Biol. 2022

[7]
Recombinant unpurified rETX/ CTB-rETX protects rabbits against Clostridium perfringens epsilon toxin.

J Vet Med Sci. 2021-4-3

[8]
Formaldehyde effects on kanamycin resistance gene of inactivated recombinant Escherichia coli vaccines.

Biotechnol Lett. 2020-11

[9]
Immunogenicity of a Bivalent Non-Purified Recombinant Vaccine against Botulism in Cattle.

Toxins (Basel). 2018-9-20

[10]
Vaccines as alternatives to antibiotics for food producing animals. Part 2: new approaches and potential solutions.

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