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Histopathological Evaluation of the Efficacy for Plant-produced E2 Protein Vaccine against Classical Swine Fever Virus (CSFV) in Piglets

Journal of Bacteriology and Virology 2019년 49권 3호 p.133 ~ 140
 ( Kim Sun-Young ) - Dongnam Institute of Radiological and Medical Sciences Department of Pathology

 ( Jung Bo-Kyoung ) - Catholic University of Pusan Department of Clinical Laboratory Science
 ( Park Gyu-Nam ) - Animal and Plant Quarantine and Inspection Agency
 ( Kim Hye-Ran ) - Daegu Haany University College of Medical Sciences Department of Clinical Laboratory Science
 ( An Dong-Jun ) - Animal and Plant Quarantine and Inspection Agency
 ( Shon Eun-Ju ) - BioApplications Inc.
 ( Chang Kyung-Soo ) - Catholic University of Pusan Department of Clinical Laboratory Science

Abstract


Classical swine fever (CSF), previously known as hog cholera, remains one of the most important swine-related contagious diseases worldwide. In order to eradicate classical swine fever virus (CSFV), it is commonly used in LOM-850 strain as a live attenuated CSF vaccine. However, there are symptoms of vaccination, such as the depression of feed intake, and difficulty of differentiation between infected and vaccinated hosts is impossible based on the antibodies induced. Nicotiana benthamiana were considered as an alternative to the production of recombinant vaccines on account of higher yields and levels of soluble protein than other models and crops in protein recombinant products. This study was conducted to evaluate histopathological validation of the plant-produced E2 fusion protein (ppE2) in piglets. The piglets were challenged by an injection of YC11WB strain in 7 days, 11 days and 14 days after one shot of the vaccination. The histopathological examination indicated that ppE2 can protect against lethal CSFV challenge at least 11 days of vaccination in piglets. These data suggest that the ppE2 can be an effective vaccine against CSFV in piglets.

키워드

Nicotiana benthamiana; Plant-derived vaccine; Classical swine fever virus; Histopathological change
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