The present invention relates to the mannose - receptor selective lysinylated cationic amphiphile and a process for preparation thereof. The compounds of the present invention can target DNA vaccines to antigen presenting cells (APCs) such as macrophages and dendritic cells (DCs), via mannose receptors expressed on the cell surface of APCs. The cationic amphiphiles disclosed herein show enhanced cellular and humoral immune response compared to their mannosyl counterparts in genetic immunization in mice. The present invention discloses that immunization with electrostatic complexes (lipoplexes) of DNA vaccines encoding melanoma antigens (gp100 and tyrosinase) and liposome of the presently described novel lysinylated cationic amphiphiles with mannose-mimicking shikimoyl head-groups provides long-lasting (100 days post melanoma tumor challenge) protective immunity in all immunized mice. Cationic amphiphiles with mannose-mimicking shikimoyl head-groups described in the present invention are likely to find future applications in the field of genetic immunization.
本发明涉及
甘露糖受体选择性赖
氨酸化阳离子两性分子及其制备方法。本发明的化合物可以通过存在于抗原呈递细胞(APCs)如巨噬细胞和树突细胞(DCs)表面的
甘露糖受体,将DNA疫苗靶向到这些细胞。本文披露的阳离子两性分子与其甘露基对照物相比,在小鼠
基因免疫中显示出增强的细胞和体液免疫应答。本发明揭示,使用编码
黑色素瘤抗原(gp100和
酪氨酸酶)的DNA疫苗的静电复合物(脂质复合物)和目前描述的具有模拟甘露基的梭梗素头基的新型赖
氨酸化阳离子两性分子的脂质体免疫,可以在所有免疫小鼠中提供持久的(挑战
黑色素瘤肿瘤后100天)保护免疫。本发明中描述的具有模拟甘露基的梭梗素头基的阳离子两性分子可能在
基因免疫领域找到未来的应用。