Notable mucosal immune responses induced in the intestine of zebrafish (Danio rerio) bath-vaccinated with a live attenuated Vibrio anguillarum vaccine

被引：61

作者：

Liu, Xiaohong ^{[1
]}

Wu, Haizhen ^{[1
]}

Chang, Xinyue ^{[1
]}

Tang, Yufei ^{[1
]}

Liu, Qin ^{[1
]}

Zhang, Yuanxing ^{[1
]}

机构：

[1] E China Univ Sci & Technol, State Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China

来源：

FISH & SHELLFISH IMMUNOLOGY | 2014年 / 40卷 / 01期

关键词：

Live attenuated Vibrio anguillarum; Zebrafish; Bath-vaccination; Mucosal immune responses; CROAKER PSEUDOSCIAENA-CROCEA; ANTIGEN-PRESENTING CELLS; AROA MUTANT; EXPRESSION; SYSTEM; ENTRY; FISH; GENE; IDENTIFICATION; NEUTROPHIL;

D O I：

10.1016/j.fsi.2014.06.030

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Live attenuated vaccine is one of the efficient vaccine candidates in aquaculture, which can be easily delivered to fish via bath-vaccination. An outstanding advantage of bath-vaccination is that vaccine delivery is through the same route as that utilized by many fish pathogens, generating specific mucosal immune responses. In this work, we investigated the mucosal immune responses induced by a live attenuated Vibrio anguillarum vaccine in zebrafish via bath-vaccination. Bacteria proliferated rapidly in 3 h after vaccination and maintained at a high level until 6 h in the intestine. Besides, bacteria persisted in the intestine for a longer time whereas decreased rapidly in the skin and gills. Moreover, a significant up-regulation of TLR5 triggering a MyD88-dependent signaling pathway was observed in the intestine, which implied that flagella were the crucial antigenic component of the live attenuated vaccine. And macrophages and neutrophils showed active responses participating in antigen recognition and sampling after vaccination. Furthermore, an inflammation was observed with plenty of lymphocytes in the intestine at 24 h post vaccination but eliminated within 7 days. In conclusion, the live attenuated V. anguillarum vaccine induced notable mucosal immune responses in the intestine which could be used as a mucosal vaccine vector in the future. (c) 2014 Elsevier Ltd. All rights reserved.

引用

页码：99 / 108

页数：10

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