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猪圆环病毒2型免疫学研究进展 被引量:1

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摘要 猪圆环病毒2型(PCV2)感染猪体后,可引发猪体内相应的细胞免疫反应和体液免疫反应,同时可造成免疫系统损伤,其中包括CD4+/CD8+/MHC II T细胞和B细胞显著减少,相关细胞因子γ-干扰素、IL-a和IL-10增加,产生病毒中和抗体等。人们已鉴定了PCV2衣壳蛋白的多个B/T细胞抗原表位,其中包括PCV2特异的氨基酸残基231~233和195~202和PCV1和PCV2共有的氨基酸残基156~162和175~192位;T细胞抗原表位包括Rep蛋白的第81~100位和201~220位氨基酸和ORF3蛋白的第31~50位氨基酸。在PCV2疫苗研究中,灭活疫苗和亚单位疫苗成为现时养猪生产中的常用疫苗、病毒活载体疫苗和DNA疫苗也成为疫苗研究的热点。
出处 《畜牧与兽医》 北大核心 2011年第4期94-97,共4页 Animal Husbandry & Veterinary Medicine
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