Abstract
Leishmaniosis is caused by different species of Leishmania parasites. The available treatments for this disease have not provided strong consistent results yet. The weak response of current chemotherapeutics can be attributed to their deficient effects on stealth parasites inside macrophages, rapid clearance from the site of action, and systemic side effects in high doses. To enhance leishmaniosis vaccine efficacy, it is a valuable strategy to use liposomes as vaccine delivery systems due to combined increase in technological advances and understanding of the immune system. Liposomes that contain and deliver immunostimulators and antigens are now being developed to target diseases that require stimulation of both humoral and cell-mediated immune responses. Hence, using particulate adjuvants, like liposomes for effective delivery to the antigen presenting cells (APCs) is important for improving leishmaniosis vaccine efficacy. This study aimed at reviewing liposomal adjuvants in vaccine development with specific accentuation on their adjuvant mechanism and surface charge. It also examined how specific physicochemical qualities of liposomes and the particle size during formulation design can affect the immune response.
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