期刊
SCIENTIFIC REPORTS
卷 5, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep10406
关键词
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资金
- National Nature and Science Foundation of China [81471579]
- National Basic Research Program 973 of China [2012CB519002]
- National Science and Technology Major Project of China [2012ZX10001006]
Host anti-viral innate immunity plays important roles in the defense against HSV-1 infection. In this study, we find an unexpected role for innate LT/LIGHT signaling in promoting HSV-1 replication and virus induced inflammation in immunocompromised mice. Using a model of footpad HSV-1 infection in Rag1-/-mice, we observed that blocking LT/LIGHT signaling with LT beta R-Ig could significantly delay disease progression and extend the survival of infected mice. LT beta R-Ig treatment reduced late proinflammatory cytokine release in the serum and nervous tissue, and inhibited chemokine expression and inflammatory cells infiltration in the dorsal root ganglia (DRG). Intriguingly, LT beta R-Ig treatment restricted HSV-1 replication in the DRG but not the footpad. These findings demonstrate a critical role for LT/LIGHT signaling in modulating innate inflammation and promoting HSV-1 replication in the nervous system, and suggest a new target for treatment of virus-induced adverse immune response and control of severe HSV-1 infection.
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