Journal of Veterinary Medical Science
Online ISSN : 1347-7439
Print ISSN : 0916-7250
ISSN-L : 0916-7250
Immunology
Oral immunization with recombinant protein antigen expressed in tobacco against fish nervous necrosis virus
Ho Seong CHOJa Young SEOSang Ik PARKTae Geum KIMTae Jung KIM
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2018 Volume 80 Issue 2 Pages 272-279

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Abstract

Nervous necrosis virus (NNV), also known as betanodavirus, has been recently implicated in mass mortalities of cultured marine fish. An effective vaccine is urgently needed to protect fish against this virus. However, parenteral immunization methods are very stressful. Individual immunization for thousands of fish is very labor intensive and expensive. Therefore, we expressed NNV coat protein in tobacco chloroplasts and used it as an oral vaccine to induce immunities in fish followed by challenges with NNV. Our results revealed that mice (IgG and IgA) and fish (IgM) immunized with the oral vaccine developed significantly higher antibody titers against the NNV coat protein. Fish were partially protected against viral challenge. Taken together, our results demonstrated that a plant-based vaccine could effectively induce immune response and protect groupers against NNV. The present method could be used to develop oral fish vaccine in the future.

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この記事はクリエイティブ・コモンズ [表示 - 非営利 - 改変禁止 4.0 国際]ライセンスの下に提供されています。
https://creativecommons.org/licenses/by-nc-nd/4.0/deed.ja
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