Chapter eight - Targeting Nanoparticles to Dendritic Cells for Immunotherapy
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AbstractDendritic cells (DCs) are key players in the initiation of adaptive immune responses and are currently exploited in immunotherapy for treatment of cancer and infectious diseases. Development of targeted nanodelivery systems carrying vaccine components, including antigens and adjuvants, to DCs in vivo represents a promising strategy to enhance immune responses. Delivering particulate vaccines specifically to DCs and preventing nonspecific uptake by other endocytotic cells are challenging. Size represents a critical parameter determining whether particulate vaccines can penetrate lymph nodes and reach resident DCs. Specific delivery is further enhanced by actively targeting DC-specific receptors. This chapter discusses the rationale for the use of particle-based vaccines and provides an overview of antigen-delivery vehicles currently under investigation. In addition, we discuss how vaccine delivery systems may be developed, focusing on liposomes, PLGA polymers, and gold nanoparticles, to obtain safe and efficacious vaccines.

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