EXOPOLYSACCHARIDE OF SHIGELLA SONNEI BACTERIA, METHOD FOR PRODUCING SAME, VACCINE AND PHARMACEUTICAL COMPOSITION CONTAINING SAME
    2.
    发明公开
    EXOPOLYSACCHARIDE OF SHIGELLA SONNEI BACTERIA, METHOD FOR PRODUCING SAME, VACCINE AND PHARMACEUTICAL COMPOSITION CONTAINING SAME 有权
    胞外多糖关志贺氏菌,宋内的细菌,方法,以及含疫苗的药物组合物

    公开(公告)号:EP2705853A1

    公开(公告)日:2014-03-12

    申请号:EP11865292.4

    申请日:2011-05-06

    IPC分类号: A61K39/112 A61P37/02 C12N1/00

    摘要: For the first time, an O-specific polysaccharide antigen that is a Shigella sonnei, phase I, exopolysaccharide has been produced and characterized, said exopolysaccharide being an authentic natural compound in the form of a bacterial capsular polysaccharide consisting of 1-100 repeating disaccharide units of O-[4-amino-2-(N-acetyl)amino-2,4-dideoxy-β-D-galactopyranosyl]-(1→4)-O-[2-(N-acetyl)amino-2-deoxy-α-L-altrpyranuronic acid] linked by (1→3) bonds to form a polysaccharide chain. The exopolysaccharide has a molecular mass of from 0.4 to 400 kDa, contains a non-toxic lipid component, namely non-hydroxylated fatty acids, and exhibits low pyrogenicity and high immunogenicity, generating mucosal protection against Shigella sonnei shigellosis by inducing the synthesis of specific antibodies against S. sonnei in mammals, including humans.
    Without using lipopolysaccharides as the source of production, an exopolysaccharide with a high degree of purity is produced from a liquid phase culture of S. sonnei bacteria by means of a workable industrial method with a high yield.
    Effective, highly specific and safe vaccines for the prophylaxis and/or treatment of Shigella sonnei shigellosis are developed on the basis of the above-mentioned exopolysaccharide, as well as pharmaceutical compositions with a broad spectrum of action, in particular, in modulating immune response.

    摘要翻译: 首次,O-特异性多糖抗原的是宋内志贺氏菌,相I,胞外多糖已被制备和鉴定那样,说胞外多糖是在细菌荚膜多糖的1-100由重复的二糖单元的形式的真实的天然化合物 O- [4-氨基-2-(N-乙酰基)氨基-2,4-二脱氧²-D-吡喃半乳糖]的 - (1†“4)-O- [2-(N-乙酰基)氨基-2- -deoxy- -L-±altrpyranuronic酸](1†“3)键,以形成多糖链连接。 的胞外多糖具有从0.4至400 kDa的分子量,含有无毒的脂质组分,即非羟基化的脂肪酸,并且表现出低致热性和高免疫原性,通过诱导特异性抗体的合成产生抗宋内氏痢疾志贺氏菌的粘膜保护 针对哺乳动物,包括人类S.氏菌。 如果不使用脂多糖作为生产源,具有高纯度的胞外多糖是从S.宋内细菌的液相培养由一种可行的工业方法以高收率来制造。 对于宋内氏痢疾志贺氏菌的预防和/或治疗有效的,高度特异性的和安全的疫苗上述胞外多糖的基础上,以及与动作的广谱的药物组合物上发展起来的,特别是在调节免疫应答。