当前位置: 首页 > 文章 > 重组甲基转移酶致弱水疱性口炎病毒的致病性与免疫原性 浙江大学学报(农业与生命科学版) 2011,37 (4) 355-362
Position: Home > Articles > Pathogenicity and immunogenicity of recombinant methyltransferase-defective vesicular stomatitis virus Journal of Zhejiang University (Agriculture and Life Sciences) 2011,37 (4) 355-362

重组甲基转移酶致弱水疱性口炎病毒的致病性与免疫原性

作  者:
章晓栋;孙静;李建荣;于涟
单  位:
浙江大学动物科学学院预防兽医研究所;俄亥俄州立大学食品科学与技术系
关键词:
水疱性口炎病毒;甲基转移酶;病原性;免疫原性
摘  要:
为了研究有效的水疱性口炎病毒疫苗,控制水疱性口炎疾病的蔓延,用甲基化能力致弱的重组水疱性口炎病毒VSV-E1764A,VSV-S1827A,VSV-Y1650A和VSV-F1691A作为疫苗,通过口腔灌服途径将1×106PFU的重组病毒接种5周龄BALB/c小鼠,研究以上重组病毒的致病性和免疫原性.结果表明:重组病毒VSV-S1827A,VSV-Y1650A和VSV-F1691A对小鼠的致病性减弱,而VSV-E1764A仍然具有较强的致病性;免疫后的小鼠用野生型水疱性口炎病毒(VSV)进行攻毒,发现VSV-S1827A和VSV-Y1650A能够诱导高水平的中和抗体,从而保护小鼠免于攻击.总之,甲基化酶致弱的水疱性口炎病毒VSV-S1827A和VSV-Y1650A不仅对动物的致病性减弱,而且表现出良好的免疫原性;因此,甲基化酶致弱的水疱性口炎病毒可能成为有良好开发前景的活疫苗.
译  名:
Pathogenicity and immunogenicity of recombinant methyltransferase-defective vesicular stomatitis virus
作  者:
ZHANG Xiao-dong1,2,SUN Jing1,LI Jian-rong2,YU Lian1(1.Institute of Preventive Veterinary Medicine,College of Animal Sciences,Zhejiang University,Hangzhou 310029,China;2.Department of Food Science and Technology,The Ohio State University,Columbus,OH 43210,USA)
关键词:
vesicular stomatitis virus;methyltransferase;pathogenicity;immunogenicity
摘  要:
To prevent the vesicular stomatitis virus(VSV) disease, using a panel of recombinant VSV(E1764A,S1827A,Y1650A,and F1691A) that were defective in mRNA cap methylation as vaccine to inoculate five-week-old BALB/c female mice through oral route with 1×106 PFU,the pathogenicity and immunogenicity of these viruses were determined.The result showed that recombinant S1827A,Y1650A,F1691A were attenuated in mice and E1764A was still pathogenic to mice.The immunized mice were challenged with wild type VSV.Mice immunized with S1827A and Y1650A trigged a high level of neutralizing antibody and were protected from virulent challenge.Taken together,the results above demonstrated that methyltransferase(MTase)-defective VSV(S1827A and Y1650A) were not only attenuated in animals,but also exhibited excellent immunogenicity.Therefore,MTase-defective viruses will be good live vaccine candidates against VSV.

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