-
公开(公告)号:US09358284B2
公开(公告)日:2016-06-07
申请号:US14343351
申请日:2012-09-14
申请人: Allan James Saul , Francesca Micoli
发明人: Allan James Saul , Francesca Micoli
IPC分类号: C07K14/34 , C08B37/00 , A61K39/02 , A61K39/385 , C07K16/12 , C07K16/44 , A61K47/48 , A61K39/112 , A61K39/095 , A61K39/00
CPC分类号: C08B37/0006 , A61K39/02 , A61K39/0275 , A61K39/095 , A61K39/385 , A61K47/6415 , A61K47/646 , A61K2039/6037 , C07K14/34 , C07K16/1285 , C07K16/44 , C07K2317/734 , C08B37/0003 , C08B37/006 , C08B37/0063 , C08B37/0081 , Y02A50/482
摘要: The invention provides a process for the reductive amination of a carbonyl group at the reducing terminus of a polysaccharide, wherein the reductive amination is carried out at a pH between 4 and 5. The invention also provides a process for preparing a conjugate of a polysaccharide and a carrier molecule, comprising the steps of: (a) coupling the polysaccharide to a linker, to form a polysaccharide-linker compound in which the free terminus of the linker is an ester group; and (b) reacting the ester group with a primary amine group in the carrier molecule, to form a polysaccharide-linker-carrier molecule conjugate in which the linker is coupled to the carrier molecule via an amide linkage. The invention also provides a process for reducing contamination of a polysaccharide-linker compound with unreacted linker, comprising a step of precipitating unreacted linker under aqueous conditions at a pH of less than 5.
摘要翻译: 本发明提供了在多糖的还原末端还原胺化羰基的方法,其中还原胺化在pH4至5之间进行。本发明还提供了制备多糖和 载体分子,其包括以下步骤:(a)将多糖偶联至接头,以形成其中接头的游离末端为酯基的多糖 - 接头化合物; 和(b)在载体分子中使酯基与伯胺基反应,以形成多糖 - 连接体 - 载体分子缀合物,其中连接体经由酰胺键与载体分子偶联。 本发明还提供了一种减少多糖 - 接头化合物与未反应接头的污染的方法,包括在pH小于5的水性条件下沉淀未反应接头的步骤。
-
公开(公告)号:US20140329998A1
公开(公告)日:2014-11-06
申请号:US14343351
申请日:2012-09-14
申请人: Allan James Saul , Francesca Micoli
发明人: Allan James Saul , Francesca Micoli
IPC分类号: A61K39/385 , C07K14/34 , A61K39/02 , C08B37/00
CPC分类号: C08B37/0006 , A61K39/02 , A61K39/0275 , A61K39/095 , A61K39/385 , A61K47/6415 , A61K47/646 , A61K2039/6037 , C07K14/34 , C07K16/1285 , C07K16/44 , C07K2317/734 , C08B37/0003 , C08B37/006 , C08B37/0063 , C08B37/0081 , Y02A50/482
摘要: The invention provides a process for the reductive amination of a carbonyl group at the reducing terminus of a polysaccharide, wherein the reductive amination is carried out at a pH between 4 and 5. The invention also provides a process for preparing a conjugate of a polysaccharide and a carrier molecule, comprising the steps of: (a) coupling the polysaccharide to a linker, to form a polysaccharide-linker compound in which the free terminus of the linker is an ester group; and (b) reacting the ester group with a primary amine group in the carrier molecule, to form a polysaccharide-linker-carrier molecule conjugate in which the linker is coupled to the carrier molecule via an amide linkage. The invention also provides a process for reducing contamination of a polysaccharide-linker compound with unreacted linker, comprising a step of precipitating unreacted linker under aqueous conditions at a pH of less than 5.
摘要翻译: 本发明提供了在多糖的还原末端还原胺化羰基的方法,其中还原胺化在pH4至5之间进行。本发明还提供了制备多糖和 载体分子,其包括以下步骤:(a)将多糖偶联至接头,以形成其中接头的游离末端为酯基的多糖 - 接头化合物; 和(b)在载体分子中使酯基与伯胺基反应,以形成多糖 - 连接体 - 载体分子缀合物,其中连接体经由酰胺键与载体分子偶联。 本发明还提供了一种减少多糖 - 接头化合物与未反应接头的污染的方法,包括在pH小于5的水性条件下沉淀未反应接头的步骤。
-
公开(公告)号:US20130017219A1
公开(公告)日:2013-01-17
申请号:US13519000
申请日:2010-09-28
IPC分类号: A61K39/02 , A61P37/04 , A61K39/112
CPC分类号: A61K39/0283 , A61K9/1277 , A61K39/0275 , A61K39/385 , A61K2039/60 , A61K2039/6018 , B01D61/142 , B01D61/147 , B01D63/02 , B01D2315/10 , B01D2315/16 , B01D2317/025 , Y02A50/401 , Y02A50/478
摘要: A two stage size filtration process is used to purify immunogenic bacterial vesicles. A first step separates the vesicles from intact bacteria based on their different sizes, with the smaller vesicles passing into the filtrate (permeate). A second step then uses a finer filter to remove smaller contaminants, with the vesicles remaining in the retentate. This two stage process is extremely simple to operate but has been shown to give vesicles of high purity.
摘要翻译: 使用两阶段大小的过滤方法来纯化免疫原性细菌泡。 第一步是根据不同的大小将囊泡与完整的细菌分开,较小的囊泡通过滤液(渗透物)。 然后第二步使用更精细的过滤器去除较小的污染物,其中囊泡残留在滞留物中。 这两步过程操作非常简单,但已经显示出提供高纯度的囊泡。
-
公开(公告)号:US06174528B1
公开(公告)日:2001-01-16
申请号:US08817811
申请日:1997-07-31
IPC分类号: A61K3912
CPC分类号: C07K14/315 , A61K39/00 , C07K14/43545 , C07K14/705 , C07K2319/00
摘要: The present invention relates generally to chimeric peptides comprising one or more protective epitopes in a conformation enabling inmunological interactivity and to vaccine compositions comprising same. The present invention is particularly directed to a chimeric peptide capable of inducing protecting antibodies against Group A streptococci.
摘要翻译: 本发明一般涉及包含一个或多个保护性表位的嵌合肽,所述保护性表位构成使得能够进行免疫交互作用的构象,以及包含其的疫苗组合物。 本发明特别涉及能够诱导针对A组链球菌的抗体的嵌合肽。
-
-
-