BINDING OF IGA AND OR IGG IS A COMMON PROPERTY AMONG CLINICAL ISOLATES OF GROUP-A STREPTOCOCCI

被引:43
作者
LINDAHL, G
STENBERG, L
机构
[1] Department of Medical Microbiology, University of Lund, Sölvegatan 23
关键词
D O I
10.1017/S0950268800047683
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Certain strains of group A streptococci are known to bind IgA and/or IgG via a cell surface receptor, which may act as a virulence factor. The distribution of such receptors among routine clinical isolates was studied, using a total of 225 strains and an assay based on the binding of radiolabelled immunoglobulins. Among 194 throat strains isolated during three different time periods in two different geographical areas of Sweden, 82% showed significant binding of IgA and/or IgG. Studies on 31 septicaemia strains, isolated over a period of more than 8 years, showed binding for 84% of the isolates. The binding strains were of several different T-types and could be subdivided into two groups, those binding both IgA and IgG and those binding IgG only. These data show that binding of IgA and/or IgG is a very common property among clinical isolates of group A streptococci. © 1990, Cambridge University Press. All rights reserved.
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页码:87 / 93
页数:7
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