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Mast cell-mediated antigen presentation regulates CD8+ T cell effector functions.
Immunity 31, 665-676 (2009)
The characteristics, importance, and molecular requirements for interactions between mast cells (MCs) and CD8(+) T cells have not been elucidated. Here, we demonstrated that MCs induced antigen-specific CD8(+) T cell activation and proliferation. This process required direct cell contact and MHC class I-dependent antigen cross-presentation by MCs and induced the secretion of interleukin-2, interferon-gamma, and macrophage inflammatory protein-1alpha by CD8(+) T cells. MCs regulated antigen-specific CD8(+) T cell cytotoxicity by increasing granzyme B expression and by promoting CD8(+) T cell degranulation. Because MCs also upregulated their expression of costimulatory molecules (4-1BB) and released osteopontin upon direct T cell contact, MC-T cell interactions probably are bidirectional. In vivo, adoptive transfer of antigen-pulsed MCs induced MHC class I-dependent, antigen-specific CD8(+) T cell proliferation, and MCs regulated CD8(+) T cell-specific priming in experimental autoimmune encephalomyelitis. Thus, MCs are important players in antigen-specific regulation of CD8(+) T cells.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
0.000
5.230
84
90
Anmerkungen
Besondere Publikation
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Sprache
englisch
Veröffentlichungsjahr
2009
HGF-Berichtsjahr
0
ISSN (print) / ISBN
1074-7613
e-ISSN
1097-4180
Zeitschrift
Immunity
Quellenangaben
Band: 31,
Heft: 4,
Seiten: 665-676
Verlag
Cell Press
Verlagsort
Cambridge, Mass.
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Diabetes Research (IDF)
PubMed ID
19818652
Erfassungsdatum
2009-12-31