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[1]郭芸芸,张雪寒,刘茂军,等.猪肺炎支原体纤毛黏附因子P97和F7-CTB对O型口蹄疫灭活疫苗的免疫增强作用[J].江苏农业科学,2019,47(11):204-210.
 Guo Yunyun,et al.Immune enhancement effect of Mycoplasma hyopneumoniae cilia adhesion factor P97 and F7-CTB on O-type foot-and-mouth disease inactivated vaccine[J].Jiangsu Agricultural Sciences,2019,47(11):204-210.
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猪肺炎支原体纤毛黏附因子P97和F7-CTB对O型
口蹄疫灭活疫苗的免疫增强作用
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《江苏农业科学》[ISSN:1002-1302/CN:32-1214/S]

卷:
第47卷
期数:
2019年第11期
页码:
204-210
栏目:
畜牧兽医与水产蚕桑
出版日期:
2019-06-20

文章信息/Info

Title:
Immune enhancement effect of Mycoplasma hyopneumoniae cilia adhesion factor P97 and F7-CTB on O-type foot-and-mouth disease inactivated vaccine
作者:
郭芸芸12 张雪寒2 刘茂军2 王警12 牛家强1 何孔旺2
1.西藏农牧学院动物科学学院,西藏林芝 860000; 2.江苏省农业科学院兽医研究所,江苏南京 210014
Author(s):
Guo Yunyunet al
关键词:
口蹄疫P97F7-CTB免疫增强剂
Keywords:
-
分类号:
S855.3
DOI:
-
文献标志码:
A
摘要:
旨在研究猪肺炎支原体(Mycoplasma hyopneumoniae,简称Mhp)纤毛黏附因子P97以及F7鞭毛蛋白(flagellin,简称F)-霍乱毒素B亚基(cholera toxin B subunit,简称CTB)2种重组蛋白对口蹄疫(foot-and-mouth disease,简称FMD)灭活疫苗的免疫增强作用。通过体外表达获得pCold-F7-CTB、pET32a-P97-R1 2种重组蛋白,用间接酶联免疫吸附试验(enzyme-linked immunosorbent assay,简称ELISA)方法检测pCold-F7-CTB蛋白的生物学活性,将重组蛋白分别与口蹄疫病毒(foot-and-mouth disease virus,简称FMDV)灭活抗原、口蹄疫灭活疫苗混合制备,皮下或腹腔接种Balb/c小鼠,共免疫2次,间隔3周。分别于免疫前、免疫后21、35、49 d采血,49 d后无菌摘取脾脏。采用阻断ELISA的方法检测小鼠血清口蹄疫O型病毒免疫球蛋白(IgG)抗体滴度,用流式细胞术检测脾淋巴细胞亚型比例,以评估免疫效力。十二烷基硫酸钠-聚丙烯酰胺凝胶电泳(sodium dodecyl sulfate-polyacrylamide gel electrophoresis,简称SDS-PAGE)和蛋白质印迹法(Western Blot)分析结果表明,2种重组蛋白成功表达。用GMl(神经节苷脂)-ELISA方法验证pCold-F7-CTB的生物学活性,发现融合蛋白F7-CTB保留了与GMl的结合能力。小鼠免疫试验结果表明,经皮下注射接种后,单独口蹄疫病毒灭活抗原组没有产生明显的抗体水平,而F7-CTB免疫增强剂组比单独口蹄疫病毒灭活抗原组的IgG滴度更高。在试验中发现,当重组蛋白与口蹄疫灭活疫苗联合使用时,血清中的IgG滴度明显增高,CD3+CD8+T淋巴细胞比值上升;P97和F7-CTB混合使用对口蹄疫灭活疫苗的免疫增强效果最佳。可以初步得出,免疫增强剂P97和F7-CTB具有协同作用,皮下注射可显著提高FMD的特异性IgG水平,CD3+CD8+T淋巴细胞比值升高,显示其具有良好的应用前景。
Abstract:
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备注/Memo

备注/Memo:
收稿日期:2019-02-26
基金项目:“十二五”国家科技支撑计划(编号:2015BAD12B04);国家自然科学基金(编号:31572503)。
作者简介:郭芸芸(1994—),女,山西长治人,硕士研究生,主要从事黏膜佐剂的研究。E-mail:1692373770@qq.com。
通信作者:牛家强,副教授,硕士生导师,主要从事高原动物传染病防控方面的研究工作,E-mail:lznjq@163.com;何孔旺,硕士,研究员,硕士生导师,主要从事人兽共患病的相关研究,E-ma
更新日期/Last Update: 2019-06-05