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两株B群脑膜炎奈瑟氏菌脂寡糖减毒前后抗原性与毒性的检测
引用本文:孙银燕,胡绪敬,王君. 两株B群脑膜炎奈瑟氏菌脂寡糖减毒前后抗原性与毒性的检测[J]. 中华微生物学和免疫学杂志, 1997, 0(5)
作者姓名:孙银燕  胡绪敬  王君
作者单位:中国预防医学科学院流行病学微生物学研究所
摘    要:
两株B群脑膜炎奈瑟氏菌脂寡糖减毒前后抗原性与毒性的检测孙银燕胡绪敬王君摘要脂寡糖(LOS)是B群Nm的一种主要外膜抗原,用SephacrylS-300HR或SephadexG-75凝胶层析方法从两株B群Nm(542852和3407)中提取获得了纯度较...

关 键 词:B群脑膜炎奈瑟氏菌  脂寡糖  寡糖  抗原性  毒性

Antigenicity and toxicity of LOS and OS purified from two strains of Neisseria meningitidis serogroup B
Sun Yinyan,Hu Xujing,Wang Jun. Antigenicity and toxicity of LOS and OS purified from two strains of Neisseria meningitidis serogroup B[J]. Chinese Journal of Microbiology and Immunology, 1997, 0(5)
Authors:Sun Yinyan  Hu Xujing  Wang Jun
Affiliation:Sun Yinyan,Hu Xujing,Wang Jun. Institute of Epidemiology and Microbiology,Chinese Academy of Preventive Medicine,Beijing 102206
Abstract:
Lipooligosaccharides(LOS),an important outer membrane antigenic component of Neisseria meningitidis serogroup B,were purified by gel filtration method from the strains 542852 and 3407,and were hydrolyzed by acetic acid.Then oligosaccharides(OS) were purified by Sephadex G 50 chromatography co lumn after lipid had been separated from LOS by acid hydrolyzation.Purified LOS was demonstrated to be of high antigenicity when it reacted with the sera against Nm serogroup B in ELISA or with monoclonal antibody against immunotype L3,7,9 in Dot ELISA.Although the antigenic titers of OS were lower than those of LOS,OS remained its antigenicity after LOS had been hydrolyzed by acetic acid.In addition it was demonstrated by limulus amoebocyte(LAL) test that the toxicity of OS was also reduced by 200000 to 500000 times.
Keywords:Neisseria meningitidis serogroup B Lipooligosaccharide Oligosaccharide Antigenicity Toxicity  
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