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CAPSULAR POLYSACCHARIDES OF STREPTOCOCCUS SUIS: POTENTIAL AS VACCINE ANTIGENS

机译:Suis的链球菌荚膜多糖:潜在疫苗抗原

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Streptococcus suis is an encapsulated bacterium and one of the most important swine pathogens and a zoonotic agent for which no effective vaccine exists. To date, 35 serotypes have been described based on capsular polysaccharide (CPS) antigenic diversity. Globally, the predominant S. suis serotypes isolated from clinical cases in pigs are, in decreasing order, types 2, 9, 3, 1/2, 7, 8, 4, 22, 5, and 1 [1]. So far, we have reported the repeating unit structures for the CPSs of types 2 [2], 14 [3], 1 and 1/2 [4], and 9 [5]. The CPSs of types 2 and 14 are known to be poor activators of antigen-presenting cells (APC): stimulation with these CPSs induces secretion of CCL2 and CCL3 only, with no production of IL-1ss, IL-6, TNF, IL-12p70 or IL-10 [6]. Additionally, types 2 and 14 CPSs are non-immunogenic in mice with undetectable levels of anti-CPS antibodies [7].
机译:Scopocccus Suis是一种包封的细菌,也是最重要的猪病原体和一种无效疫苗的一种猪病理剂。迄今为止,已经基于荚膜多糖(CPS)抗原多样性描述了35种血清型。在全球范围内,从猪临床病例中分离的主要S. Suis血清型在递减顺序,类型2,9,3,1 / 2,7,8,4,22,5和1 [1]中。到目前为止,我们已经报道了2型[2],14,1和1/2 [4]的CPS的重复单元结构,和9 [5]。已知2和14种和14种的CPS是抗原呈递细胞的差的激活剂(APC):用这些CPS的刺激仅诱导CCL2和CCL3的分泌,没有产生IL-1SS,IL-6,TNF,IL- 12p70或IL-10 [6]。另外,2和14种CPS在小鼠中是非免疫原性,具有未检测的抗CPS抗体水平[7]。

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