Defining the role of tumour necrosis factor apoptosis inducing ligand (TRAIL) in experimental visceral leishmaniasis.

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The activation of pathogen-specific T cells by dendritic cells (DC) is a critical step in the control of most infections, as well as the success of many vaccine strategies. The specific cells and molecules involved in this process are still poorly defined. In this project, we will investigate the effects of a cell surface molecule called tumour necrosis factor related apoptosis inducing ligand (TRAIL) on the ability of DC to activate T cells during a parasitic infection caused by Leishmania donovani. By identifying the cells that express TRAIL and the effect that this molecule has on the development of immunity to pathogens, we will better understand the factors required to generate effective immune responses against infectious agents, and hence, develop better vaccines.