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Title

Biogenesis and Function of T Cell-Derived Exosomes

AuthorsVentimiglia, Leandro ; Alonso, Miguel A.
Issue Date17-Aug-2016
PublisherFrontiers Media
CitationFront. Cell Dev. Biol. 4: 84 (2016)
AbstractExosomes are a particular type of extracellular vesicle, characterized by their endosomal origin as intraluminal vesicles present in large endosomes with a multivesicular structure. After these endosomes fuse with the plasma membrane, exosomes are secreted into the extracellular space. The ability of exosomes to carry and selectively deliver bioactive molecules (e.g., lipids, proteins, and nucleic acids) confers on them the capacity to modulate the activity of receptor cells, even if these cells are located in distant tissues or organs. Since exosomal cargo depends on cell type, a detailed understanding of the mechanisms that regulate the biochemical composition of exosomes is fundamental to a comprehensive view of exosome function. Here, we review the latest advances concerning exosome function and biogenesis in T cells, with particular focus on the mechanism of protein sorting at multivesicular endosomes. Exosomes secreted by specific T-cell subsets can modulate the activity of immune cells, including other T-cell subsets. Ceramide, tetraspanins and MAL have been revealed to be important in exosome biogenesis by T cells. These molecules, therefore, constitute potential molecular targets for artificially modulating exosome production and, hence, the immune response for therapeutic purposes.
Publisher version (URL)http://dx.doi.org/10.3389/fcell.2016.00084
URIhttp://hdl.handle.net/10261/153029
DOI10.3389/fcell.2016.00084
ISSN2296-634X
Appears in Collections:(CBM) Artículos
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