Macrophage specific drug delivery in experimental leishmaniasis

Current Molecular Medicine
Mukul Kumar Basu, Sanchaita Lala

Abstract

Macrophage-specific delivery systems are the subject of much interest nowadays, because of the fact that macrophages act as host cells for many parasites and bacteria, which give rise to outbreak of so many deadly diseases(eg. leishmaniasis, tuberculosis etc.) in humans. To combat these deadly diseases initially macrophage specific liposomal delivery system were thought of and tested in vivo against experimental leishmaniasis in hamsters using a series of indigenous or synthetic antileishmanial compounds and the results were critically discussed. In vitro testing was also done against macrophages infected with Leishmania donovani, the causative agent for visceral leishmaniasis. The common problem of liposome therapy being their larger size, stability and storage, non-ionic surfactant vesicles, niosomes were prepared, for their different drug distribution and release characteristics compared to liposomes. When tested in vivo, the retention capacity of niosomes was found to be higher than that of liposomes due to the absence of lipid molecules and their smaller size. Thus the therapeutic efficacy of certain antileishmanial compounds was found to be better than that in the liposomal form. The niosomes, being cheaper, less toxic, b...Continue Reading

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