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Detection of five different cells' sensitivities to enterovirus 71 using plaque forming assay
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- Author:
- No author available
- Journal Title:
- WORLD CHINESE JOURNAL OF DIGESTOLOGY
- Issue:
- 6
- DOI:
- 10.3969/j.issn.1009-3079.2009.06.007
- Key Word:
- 肠道病毒71型;空斑形成试验;细胞;定量测定
Abstract： 目的:建立肠道病毒71型(EV71)的空班形成方法, 并比较BGM、VeroE6、MRC-5、HEp-2及A549五种细胞对EV71病毒的敏感性.方法:将不同稀释浓度的EV71病毒接种到五种细胞, 分别覆盖三种不同的培养物, 孵育一定时间后固定染色, 比较出斑效果;以新建空斑形成法测定五种细胞感染EV71 24-96 h后培养液滴度, 计算空班形成单位(pfu).结果:在五种细胞中, BGM和VeroE6覆盖琼脂糖凝胶的EV71可形成针尖样空班;覆盖1%甲基纤维素的EV71可形成直径大约1 mm圆形或类圆形空班, 形成空斑单位最多, 病毒滴度分别达2.87×109 pfu/L和1.65×109 pfu/L;覆盖1.2%艾维素的EV71在BGM细胞中可形成直径大约0.5 mm类圆形空斑, 在VeroE6细胞中形成针尖样空斑;其他细胞均形成针尖样空斑.结论:空斑形成方法可对肠道病毒进行定量检测, BGM及VeroE6细胞为EV71的敏感细胞.
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