期刊
JOURNAL OF IMMUNOLOGY
卷 193, 期 4, 页码 1911-1919出版社
AMER ASSOC IMMUNOLOGISTS
DOI: 10.4049/jimmunol.1302392
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资金
- European Commission [238756]
- Science Foundation Ireland
- Conselho Nacional de Ciencia de Desenvolvimento Cientifico e Tecnologico (Brazil)
TLR4 interactor with leucine-rich repeats (TRIL) is a brain-enriched accessory protein that is important in TLR3 and TLR4 signaling. In this study, we generated Tril(-/-) mice and examined TLR responses in vitro and in vivo. We found a role for TRIL in both TLR4 and TLR3 signaling in mixed glial cells, consistent with the high level of expression of TRIL in these cells. We also found that TRIL is a modulator of the innate immune response to LPS challenge and Escherichia coli infection in vivo. Tril(-/-) mice produce lower levels of multiple proinflammatory cytokines and chemokines specifically within the brain after E. coli and LPS challenge. Collectively, these data uncover TRIL as a mediator of innate immune responses within the brain, where it enhances neuronal cytokine responses to infection.
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