Sabin株脊髓灰质炎病毒纯化的离子交换层析条件研究

International Journal of Biologicals(2020)

Cited 0|Views1
No score
Abstract
目的 研究Sabin株脊髓灰质炎病毒(Sabin strain polio virus,sPV)纯化的离子交换层析(ion exchange chromatography,IEC)条件.方法 在不同层析条件下对sPV凝胶层析粗纯液进行IEC,设定的层析参数分别为介质Q Sepharose FF或EshmunoQ、上样量30%或40%柱体积、流速(150±5)或(240±8)cm/h.分别检测各型sPV纯化液的D抗原含量、蛋白浓度、病毒滴度、宿主细胞蛋白残留量和Vero细胞DNA残留量,计算D抗原回收率和比活.结果 EshmunoQIEC纯化的各型sPV纯化液的D抗原回收率均明显高于Q Sepharose FF IEC.在上样量40%柱体积、流速(150±5)cm/h条件下,Eshmuno Q IEC纯化的各型sPV纯化液的D抗原比活均高于Q Sepharose FF IEC,差异均有统计学意义(Ⅰ型:t=4.23,Ⅱ型:t=5.73,Ⅲ型:t=4.18,P值均<0.05),而且前者的宿主细胞蛋白残留量(Ⅰ型:t=8.29,Ⅱ型:t=7.89,Ⅲ型:t=8.18,P值均<0.05)和Vero细胞DNA残留量(Ⅰ型:t=4.23,Ⅱ型:t=4.56,Ⅲ型:t=4.78,P值均<0.05)均低于后者,差异均有统计学意义.结论 用IEC纯化sPV时,以Eshmuno Q代替Q Sepharose FF可增加上样量和流速,从而缩短IEC时间,提高纯化效率.
More
Translated text
Key words
Chromatography,ion exchange,Poliovirus vaccine,inactivated,Anion exchange resins
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined