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血凝作用是脂多糖(LPS)的一种新的生物学功能,霍乱弧菌O139 LPS就是如此。

Hemagglutination is a novel biological function of lipopolysaccharide (LPS), as seen with the Vibrio cholerae O139 LPS.

作者信息

Alam M, Miyoshi S, Tomochika K, Shinoda S

机构信息

Faculty of Pharmaceutical Sciences, Okayama University, Naka, Japan.

出版信息

Clin Diagn Lab Immunol. 1997 Sep;4(5):604-6. doi: 10.1128/cdli.4.5.604-606.1997.

Abstract

It has been generally thought that the polysaccharide moiety of lipopolysaccharide (LPS) maintains only serological specificity, while the lipid A portion determines various biological functions. However, we found that hemagglutination was a common function of the polysaccharide moiety of LPSs from important human enteropathogenic bacteria. Of the LPSs examined, Vibrio cholerae O139 LPS showed the highest hemagglutinating activity. Glycoproteins, such as mucin and fetuin, showed efficient inhibition of the hemagglutinating ability. Since cell-mediated hemagglutination is known to be correlated with bacterial adherence, hemagglutination induced by the polysaccharide moiety is interpreted to indicate that cell-surface LPS is a potential adhesin.

摘要

人们普遍认为,脂多糖(LPS)的多糖部分仅维持血清学特异性,而脂质A部分决定各种生物学功能。然而,我们发现血凝是来自重要人类肠道病原菌的LPS多糖部分的共同功能。在所检测的LPS中,霍乱弧菌O139 LPS表现出最高的血凝活性。糖蛋白,如粘蛋白和胎球蛋白,对血凝能力有有效的抑制作用。由于已知细胞介导的血凝与细菌粘附相关,多糖部分诱导的血凝被解释为表明细胞表面LPS是一种潜在的粘附素。

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本文引用的文献

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Vibrio cholerae O139 Bengal.霍乱弧菌O139孟加拉型
J Clin Microbiol. 1994 Oct;32(10):2345-9. doi: 10.1128/jcm.32.10.2345-2349.1994.

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