首页> 外文期刊>Infection and immunity >Polysaccharides of the Genus Bacillus Cross-Reactive with the Capsular Polysaccharides of Diplococcus pneumoniae Type III, Haemophilus influenzae Type b, and Neisseria meningitidis Group A
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Polysaccharides of the Genus Bacillus Cross-Reactive with the Capsular Polysaccharides of Diplococcus pneumoniae Type III, Haemophilus influenzae Type b, and Neisseria meningitidis Group A

机译:芽孢杆菌属的多糖与肺炎双球菌III型,流感嗜血杆菌b型和脑膜炎奈瑟氏球菌A组的荚膜多糖发生交叉反应

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We studied 174 strains of the genus Bacillus for cross-reacting antigens to the capsular polysaccharides of groups A and C meningococcus, types I and III pneumococcus, and Haemophilus influenzae type b. Cross-reactions were detected by immunodiffusion in agarose gel by using type-specific antisera and confirmed by absorption and inhibition experiments. Of 20 Bacillus pumilis strains, six had an antigen cross-reacting with group A meningococcal polysaccharide. Other cross-reactions included one strain of B. pumilis with H. influenzae type b, one of B. cereus var. mycoides with pneumococcus type III, and one of B. alvei with both type b and SIII polysaccharides. These cross-reacting antigens are polysaccharides of vegetative cells and may be extracellular in location. Because these bacilli have antigens cross-reacting with the virulence factors of pyogenic bacteria, they may, as normal flora, be an antigenic stimulus for “natural” serum anti-capsular antibodies to the type b Haemophilus and group A meningococcus polysaccharides.
机译:我们研究了174株芽孢杆菌菌株与A和C组脑膜炎球菌,I型和III型肺炎球菌以及B型流感嗜血杆菌的荚膜多糖的交叉反应抗原。使用类型特异性抗血清通过在琼脂糖凝胶中进行免疫扩散检测交叉反应,并通过吸收和抑制实验进行确认。在20株枯草芽孢杆菌菌株中,有6株具有与A组脑膜炎球菌多糖交叉反应的抗原。其他交叉反应包括一株 B。 pumilis H。 b型流感病毒, B型之一。蜡状菌 var。 mycoides 具有肺炎球菌类型III,且是 B之一。带有b型和SIII型多糖的alvei 。这些交叉反应抗原是营养细胞的多糖,并且在位置上可能在细胞外。由于这些杆菌具有与化脓性细菌的致病因子交叉反应的抗原,因此它们可能作为正常菌群,成为针对“ 血友病”和“ b”型嗜血杆菌的“天然”血清抗荚膜抗体的抗原刺激物。脑膜炎球菌多糖。

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