Abstract: 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.

Abstract: 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.

Abstract: Novel anti-cancer reagents capable of combating various types of tumors continue to be major research focus in many leading pharmaceutical companies round the globe. To this end, the present invention discloses processes for preparing a novel series of histidinylated cationic amphiphiles of formula I. The findings described herein also demonstrate that compounds of the present invention possess anti-proliferative activity such as anti” cancer activity and are useful in combating various types of cancer. The pharmaceutically active composition of cationic amphiphiles disclosed herein show enhanced cellular apoptosis through the Bax & Bcl-2 mediated signal transduction pathway. Cationic amphiphiles with histidine head-groups described in the present invention are likely to find future applications in the field of anti-cancer therapy.

Abstract: The present invention discloses novel cationic amphiphiles containing mannose-mimicking shikimic and quinic acid head-groups and a process for preparing cationic amphiphiles with mannose-mimicking polar head-groups such as, shikimic and quinic acids. The findings described herein also demonstrate that compounds of the present invention can target model 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 counterpart in dendritic cell (DC, the most professional APC) based genetic immunization in mice. Cationic amphiphiles with mannose-mimicking quinic and shikimic acid head-groups described in the present invention are likely to find future applications in the field of genetic immunization.

Abstract: The present invention discloses novel cationic amphiphiles containing mannose-mimicking shikimic and quinic acid head-groups and a process for preparing cationic amphiphiles with mannose-mimicking polar head-groups such as, shikimic and quinic acids. The findings described herein also demonstrate that compounds of the present invention can target model 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 counterpart in dendritic cell (DC, the most professional APC) based genetic immunization in mice. Cationic amphiphiles with mannose-mimicking quinic and shikimic acid head-groups described in the present invention are likely to find future applications in the field of genetic immunization.