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Immunostimulatory RNA oligonucleotides induce an effective antitumoral NK cell response through the TLR7.
J. Immunol. 183, 6078-6086 (2009)
RNA oligonucleotides containing immune-activating sequences promote the development of cytotoxic T cell and B cell responses to Ag. In this study, we show for the first time that immunostimulatory RNA oligonucleotides induce a NK cell response that prevents growth of NK-sensitive tumors. Treatment of mice with immunostimulatory RNA oligonucleotides activates NK cells in a sequence-dependent manner, leading to enhanced IFN-gamma production and increased cytotoxicity. Use of gene-deficient mice showed that NK activation is entirely TLR7-dependent. We further demonstrate that NK activation is indirectly induced through IL-12 and type I IFN production by dendritic cells. Reconstitution of TLR7-deficient mice with wild-type dendritic cells restores NK activation upon treatment with immunostimulatory RNA oligonucleotides. Thus, by activating both NK cells and CTLs, RNA oligonucleotides stimulate two major cellular effectors of antitumor immunity. This dual activation may enhance the efficacy of immunotherapeutic strategies against cancer by preventing the development of tumor immune escape variants.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
6.000
2.120
19
34
Anmerkungen
Besondere Publikation
Auf Hompepage verbergern
Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Sprache
englisch
Veröffentlichungsjahr
2009
HGF-Berichtsjahr
2009
ISSN (print) / ISBN
0022-1767
e-ISSN
1550-6606
Zeitschrift
Journal of Immunology
Quellenangaben
Band: 183,
Heft: 10,
Seiten: 6078-6086
Verlag
American Association of Immunologists
Verlagsort
Bethesda
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Molecular Immunology (IMI)
POF Topic(s)
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Forschungsfeld(er)
Immune Response and Infection
PSP-Element(e)
G-501700-006
PubMed ID
19890064
Scopus ID
77954229780
Erfassungsdatum
2009-11-24