申请人:KORANEX CAPITAL
公开号:US20210085770A1
公开(公告)日:2021-03-25
Neoglycoconjugates as immunogens and therapeutic/diagnostic tools are described herein. The neoglycoconjugates are produced by conjugating a carbohydrate antigen intermediate to a free amine group of a carrier material (e.g., carrier protein). The intermediate comprises a linker having a first end and a second end, the first end being conjugated to a carbohydrate antigen via a thio ether bond and the second end comprising a functional group reactable with a free amine group. Following coupling, the carbohydrate antigen becomes covalently bound to the carrier material via an amide, a carbamate, a sulfonamide, a urea, or a thiourea bond, thereby producing the neoglycoconjugate. Applications of the neoglycoconjugates as antigens, immunogens, vaccines, and in diagnostics are also described. Specifically, the use of (neo)glycoconjugates as vaccine candidates and other therapeutic tools against cancers, viruses such as SARS-CoV-2, and other diseases characterized by expression of aberrant glycosylation are also described.
新糖基共轭物作为免疫原和治疗/诊断工具在此进行描述。这些新糖基共轭物是通过将碳水化合物抗原中间体与载体材料(例如载体蛋白质)的自由胺基结合而产生的。该中间体包括具有第一端和第二端的连接物,第一端通过硫醚键与碳水化合物抗原结合,第二端包括可与自由胺基反应的功能基团。在偶联后,碳水化合物抗原通过酰胺、碳酸酯、磺酰胺、脲或硫脲键与载体材料共价结合,从而产生新糖基共轭物。还描述了将新糖基共轭物用作抗原、免疫原、疫苗和诊断的应用。具体地,还描述了将(新)糖基共轭物用作疫苗候选物和其他治疗工具,用于对抗癌症、冠状病毒(例如SARS-CoV-2)等病毒以及其他表达异常糖基化的疾病。