Since 1973, when Steinman and Cohn highlighted the importance of dendritic cells as mediators of immunity, a large series of subsequent researches have been registered concerning these amazing cells and their implications in different pathologies. Although in small number, they are widely distributed and represent crucial elements in immune responses against pathogens. Data gathered in the last period, mostly based on in vitro studies, helped us understand the early events of HIV-host interactions, the important roles of dendritic cells in this phase, but fails to fully explain the complex mechanisms underlying these interactions, such as the ways developed by HIV to evade the immune system and to facilitate viral dissemination. Improved knowledge of these mechanisms may provide a basis in the attempt to find new therapeutic targets and elaborate immunologic therapies.
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