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Suppressive Oligodeoxynucleotides Protect Mice from Lethal Endotoxic Shock
Ist Teil von
The Journal of immunology (1950), 2005-04, Vol.174 (8), p.4579-4583
Ort / Verlag
United States: Am Assoc Immnol
Erscheinungsjahr
2005
Link zum Volltext
Quelle
MEDLINE
Beschreibungen/Notizen
Endotoxic shock is a life-threatening condition caused by exposure to bacterial LPS. LPS triggers the release of acute phase, proinflammatory, and Th1 cytokines that facilitate the development of endotoxic shock. Synthetic oligodeoxynucleotides (ODN) expressing suppressive TTAGGG motifs effectively down-regulate the production of proinflammatory and Th1 cytokines elicited by a variety of immune stimuli. The current results demonstrate that suppressive ODN protect mice from LPS-induced endotoxic shock. Underlying this protective effect is the ability of suppressive ODN to bind to and prevent the phosphorylation of STAT1 and STAT4, thereby blocking the signaling cascade mediated by LPS-induced IFN-beta and IL-12. These findings suggest that suppressive ODN might be of use in the treatment of endotoxic shock.