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首页> 外文期刊>Journal of Clinical Microbiology >Filter radioimmunoassay, a method for large-scale serotyping of Neisseria meningitidis.
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Filter radioimmunoassay, a method for large-scale serotyping of Neisseria meningitidis.

机译:过滤放射免疫法,一种脑膜炎奈瑟氏球菌大规模血清分型的方法。

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摘要

A simple and rapid filter radioimmunoassay method can be used to serotype meningococcal strains on a large scale. The technique consists of simultaneous inoculation of 96 strains on nitrocellulose filters. The resulting colonies can be processed in situ, by extraction and fixation, incubation with antibodies and 125I-labeled protein A, and, finally, autoradiography. Processing many filters simultaneously, one person can serotype thousands of meningococci in a week. Multiple filters with identical strain patterns can be stored after the fixation step for future screening. The use of monoclonal antibodies is essential; polyclonal antisera, even after extensive absorption, were not specific in this assay. When results from filter radioimmunoassay and Ouchterlony microprecipitation were compared for the serotyping of 201 Neisseria meningitidis strains for serotypes 2a and 2b, filter radioimmunoassay was sufficiently sensitive and specific to be useful in mass screening.
机译:简单快速的过滤放射免疫测定方法可用于大规模血清型脑膜炎球菌菌株。该技术包括在硝酸纤维素滤膜上同时接种96个菌株。可以通过提取和固定,与抗体和125 I标记的蛋白A一起温育,最后进行放射自显影,原位处理得到的菌落。同时处理多个过滤器,一个人可以在一周内对数千个脑膜炎球菌进行血清分型。在固定步骤之后,可以存储具有相同应变模式的多个过滤器,以供将来筛选。单克隆抗体的使用是必不可少的。即使在广泛吸收后,多克隆抗血清在该测定中也不是特异性的。当比较过滤器放射免疫分析和Ouchterlony微沉淀的结果对201型脑膜炎奈瑟氏球菌2a和2b型血清型进行血清分型时,过滤器放射免疫分析具有足够的敏感性和特异性,可用于大规模筛选。

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