海豚链球菌simA和pgmA真核表达质粒对尼罗罗非鱼免疫保护的研究
Q819; 尼罗罗非鱼(Oreochromis niloticus)是世界水产养殖业中的重要经济鱼类,但在养殖生产中易受海豚链球菌(Streptococcus iniae)感染而致病致死,使用疫苗是一种相对理想的防感染措施.该研究采用海豚链球菌simA、pgmA基因构建的真核表达载体作为DNA疫苗,肌肉注射罗非鱼评估疫苗保护效果.免疫后在DNA和RNA水平上,在注射鱼体内检测到2个目的基因.首次免疫后第7至第28天,鳃、肝、肾脏、头肾中疫苗组的白介素1(Interleukin,IL-1β)与肿瘤坏死因子(Tumor Necrosis Factor,TNF-α)表达量高于PBS对照组;疫苗组的抗...
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Published in | 南方水产科学 Vol. 16; no. 3; pp. 38 - 46 |
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Main Authors | , , , , |
Format | Journal Article |
Language | Chinese |
Published |
中山大学生命科学学院/水生经济动物研究所暨广东省水生经济动物良种繁育重点实验室/广东省重要经济鱼类健康养殖工程技术研究中心,广东广州,510275
01.06.2020
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Subjects | |
Online Access | Get full text |
ISSN | 2095-0780 |
DOI | 10.12131/20190163 |
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Abstract | Q819; 尼罗罗非鱼(Oreochromis niloticus)是世界水产养殖业中的重要经济鱼类,但在养殖生产中易受海豚链球菌(Streptococcus iniae)感染而致病致死,使用疫苗是一种相对理想的防感染措施.该研究采用海豚链球菌simA、pgmA基因构建的真核表达载体作为DNA疫苗,肌肉注射罗非鱼评估疫苗保护效果.免疫后在DNA和RNA水平上,在注射鱼体内检测到2个目的基因.首次免疫后第7至第28天,鳃、肝、肾脏、头肾中疫苗组的白介素1(Interleukin,IL-1β)与肿瘤坏死因子(Tumor Necrosis Factor,TNF-α)表达量高于PBS对照组;疫苗组的抗体滴度、血清抗菌活性显著(P<0.05)高于PBS对照组.攻毒后,注射pcDNA3.1-pgmA、pcDNA3.1-simA、pcDNA3.1-pgmA与pcDNA3.1-simA等比例混合疫苗的相对保护率(Relative percent survival,RPS)分别为60.7%、49.9%和75.0%.结果表明所制备的疫苗具有免疫保护效果,可作为候选疫苗. |
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AbstractList | Q819; 尼罗罗非鱼(Oreochromis niloticus)是世界水产养殖业中的重要经济鱼类,但在养殖生产中易受海豚链球菌(Streptococcus iniae)感染而致病致死,使用疫苗是一种相对理想的防感染措施.该研究采用海豚链球菌simA、pgmA基因构建的真核表达载体作为DNA疫苗,肌肉注射罗非鱼评估疫苗保护效果.免疫后在DNA和RNA水平上,在注射鱼体内检测到2个目的基因.首次免疫后第7至第28天,鳃、肝、肾脏、头肾中疫苗组的白介素1(Interleukin,IL-1β)与肿瘤坏死因子(Tumor Necrosis Factor,TNF-α)表达量高于PBS对照组;疫苗组的抗体滴度、血清抗菌活性显著(P<0.05)高于PBS对照组.攻毒后,注射pcDNA3.1-pgmA、pcDNA3.1-simA、pcDNA3.1-pgmA与pcDNA3.1-simA等比例混合疫苗的相对保护率(Relative percent survival,RPS)分别为60.7%、49.9%和75.0%.结果表明所制备的疫苗具有免疫保护效果,可作为候选疫苗. |
Author | 李文笙 高凇泽 马丽 吴金英 孙彩云 |
AuthorAffiliation | 中山大学生命科学学院/水生经济动物研究所暨广东省水生经济动物良种繁育重点实验室/广东省重要经济鱼类健康养殖工程技术研究中心,广东广州,510275 |
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Author_FL | MA Li WU Jinying SUN Caiyun LI Wensheng GAO Songze |
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DocumentTitle_FL | Study on immunoprotection of eukaryotic expression plasmids of Streptococcus iniae simA and pgmA in Oreochromis niloticus |
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Keywords | 尼罗罗非鱼 DNA疫苗 simA基因 海豚链球菌 pgmA基因 |
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Title | 海豚链球菌simA和pgmA真核表达质粒对尼罗罗非鱼免疫保护的研究 |
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