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表达大熊猫源犬瘟热病毒H蛋白复制缺陷型重组腺病毒的构建及鉴定
Authors
2
2 冯娜 2 夏咸柱 1
+3 more
2 孟宪踊 1
2 王铁成 2 高玉伟 1
陈廷炜 1
Publication date
1 January 2021
Publisher
Editorial Department of Chinese Journal of Wildlife
Abstract
为构建能够表达大熊猫源犬瘟热病毒(CDV)分离株giant panda/SX/2014 H蛋白的复制缺陷型重组腺病毒,利用反转录聚合酶链反应(RTPCR)扩增株giant panda/SX/2014 H基因,通过TOPO连接克隆至入门载体pENTR/DTOPO,得到重组入门质粒pENTR/DTOPOCDVH,然后与腺病毒骨架载体pAd/CMV/V5DEST进行LR重组,获得重组质粒pAdCDVH;重组质粒用PacⅠ酶切线性化后转染293A细胞,获得重组腺病毒rAdCDVH,连续传代后对获得的重组腺病毒分别进行病毒滴定、免疫荧光和Western blot鉴定。经免疫荧光方法及Western blot鉴定结果表明,重组腺病毒rAdCDVH感染293A细胞、Vero细胞后均可以成功表达H蛋白,获得的重组腺病毒的滴度高达1010IFU/mL。成功获得能够表达大熊猫源CDV H蛋白的重组腺病毒rAdCDVH,在进一步证明其安全有效后,可为大熊猫犬瘟热免疫预防提供候选疫苗株
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Last time updated on 03/04/2025