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甲型H1N1流感病毒疫苗株高适应性MDCK细胞的筛选及鉴定
引用本文:姚志东,张良艳,刘坤,邢丽,王希良.甲型H1N1流感病毒疫苗株高适应性MDCK细胞的筛选及鉴定[J].免疫学杂志,2011(3):189-192.
作者姓名:姚志东  张良艳  刘坤  邢丽  王希良
作者单位:中国人民解放军军事医学科学院微生物流行病研究所免疫学研究室病原微生物与生物安全国家重点实验室;
基金项目:国家“863”重大课题(2006AA02A204)
摘    要:目的筛选甲型H1N1流感病毒疫苗株高适应的MDCK单克隆细胞株,用于培养生产流感病毒疫苗,为细胞代替鸡胚生产制备流感病毒疫苗提供保证。方法通过有限稀释法将MDCK细胞进行单克隆化,扩大培养建立单克隆化细胞库,通过血凝和TCID50筛选甲型H1N1流感病毒疫苗株的高适应性单克隆化细胞株,并鉴定所获得的细胞株细胞表面NeuAcα2,6 Gal的丰度。结果共制备了97株单克隆化MDCK细胞,经过甲型H1N1流感病毒疫苗株的筛选,共筛选到2株高适应甲型H1N1流感病毒疫苗株的MDCK单克隆化细胞株,其TCID50分别为6.68 log10 TCID50/ml和6.77 log10 TCID50/ml,其表面NeuAcα2,6 Gal的丰度明显提高。结论成功培养了MDCK单克隆细胞株,经筛选获得的单克隆细胞株其血凝滴度,TCID50都比普通MDCK细胞有明显提高,为细胞培养生产流感病毒疫苗奠定了基础。

关 键 词:MDCK细胞  单克隆化  甲型H1N1流感病毒

Screening and identification of MDCK cells for monoclonal cell lines high-adapted to influenza virus
YAO Zhidong,ZHANG Liangyan,LIU Kun,XIN Li,WANG Xiliang State Key Laboratory of Pathogen , Biosecurity.Screening and identification of MDCK cells for monoclonal cell lines high-adapted to influenza virus[J].Immunological Journal,2011(3):189-192.
Authors:YAO Zhidong  ZHANG Liangyan  LIU Kun  XIN Li  WANG Xiliang State Key Laboratory of Pathogen  Biosecurity
Institution:YAO Zhidong,ZHANG Liangyan,LIU Kun,XIN Li,WANG Xiliang State Key Laboratory of Pathogen and Biosecurity,Institute of Microbiology and Epidemiology,Academy of Military Medical Sciences,Beijing 100071,China
Abstract:In this study,we screened MDCK monoclonal cell lines for those which high-adapted to influenza virus,and then product influenza virus in the selected MDCK monoclonal cell line instead of chicken embryonated eggs.We monocloned the MDCK cells by the method of limiting dilution and culture the MDCK monoclonal cells to establish a bank of monoclonal cell lines.And then we screened MDCK monoclonal cell lines for those which high-adapted to influenza virus by the method of TCID50 test and hemagglutination test.At...
Keywords:MDCK cells  Monoclone  A/H1N1 influenza virus  
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