期刊
JOURNAL OF INFECTIOUS DISEASES
卷 191, 期 8, 页码 1368-1376出版社
OXFORD UNIV PRESS INC
DOI: 10.1086/428452
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资金
- NIAID NIH HHS [AI62689] Funding Source: Medline
CpG oligodeoxynucleotides (ODNs) may prevent mortality from infection. We have identified a therapeutic benefit in treating sepsis with phosphorothioate ODN sequences containing the CpG motif. Sepsis was induced in rats by cecal ligation and puncture (CLP), and treatment with CpG ODNs reduced sepsis mortality from 80% to 15% during a 108-h period. Protection from mortality was dose dependent. Bacterial load in peritoneal fluid was reduced in CpG ODN-treated versus non-CpG ODN-treated rats after CLP. Lung injury, as determined by total myeloperoxidase activity, was also reduced in CpG ODN-treated versus non-CpG ODN-treated rats after CLP. Indirect evidence suggests that CpG-induced expression of interleukin (IL)-23 as levels of p40-but not p35-were significantly increased in both plasma and peritoneal lavage fluid in CpG ODN-treated versus nonCpG ODN-treated rats 24 h after CLP. Anti-IL-17 antibody inhibited the CpG-mediated prevention of mortality. These data suggest that IL-17 may mediate CpG-inducible host defenses during intraabdominal sepsis.
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