Journal
ANNUAL REVIEW OF IMMUNOLOGY, VOL 36
Volume 36, Issue -, Pages 435-459Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-immunol-041015-055700
Keywords
exosomes; microvesicles; MHC molecules; dendritic cells; B cells; T cells
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The initiation and maintenance of adaptive immunity require multifaceted modes of communication between different types of immune cells, including direct intercellular contact, secreted soluble signaling molecules, and extracellular vesicles (EVs). EVs can be formed as microvesicles directly pinched off from the plasma membrane or as exosomes secreted by multivesicular endosomes. Membrane receptors guide EVs to specific target cells, allowing directional transfer of specific and complex signaling cues. EVs are released by most, if not all, immune cells. Depending on the type and status of their originating cell, EVs may facilitate the initiation, expansion, maintenance, or silencing of adaptive immune responses. This review focusses on EVs from professional antigen-presenting cells, their demonstrated and speculated roles, and their potential for cancer immunotherapy.
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