申请人:NOVARTIS AG
公开号:US20150104479A1
公开(公告)日:2015-04-16
The invention provides a conjugate of a
Neisseria meningitidis
serogroup X capsular polysaccharide and a carrier molecule. The conjugate is typically made by (a) oxidising a primary hydroxyl group in the capsular polysaccharide, to give an oxidised polysaccharide with an aldehyde group; and (b) coupling the oxidised polysaccharide to a carrier molecule via the aldehyde group, thereby giving the conjugate. The conjugate may be part of an immunogenic composition. This composition may comprise one or more further antigens, particularly capsular polysaccharides from serogroups A, W135, C and Y and conjugated forms thereof. The composition may be in an aqueous formulation. The composition is useful as a vaccine, e.g. for raising an immune response in a mammal. The invention also provides processes for making the conjugate.
该发明提供了一种Neisseria meningitidis X群胶囊多糖和载体分子的结合物。通常通过以下步骤制备该结合物:(a)氧化胶囊多糖中的主要羟基,生成带有醛基的氧化多糖;(b)通过醛基将氧化多糖与载体分子偶联,从而生成结合物。该结合物可以是免疫原性组合物的一部分。该组合物可以包括一个或多个进一步的抗原,特别是A、W135、C和Y血清群的胶囊多糖及其共轭形式。该组合物可以是水性制剂。该组合物可用作疫苗,例如,用于提高哺乳动物的免疫反应。该发明还提供了制备该结合物的方法。