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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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TRAM is specifically involved in the Toll-like receptor 4-mediated MyD88-independent signaling pathway.

Recognition of pathogens by Toll-like receptors (TLRs) triggers innate immune responses through signaling pathways mediated by Toll-interleukin 1 receptor (TIR) domain-containing adaptors such as MyD88, TIRAP and TRIF. MyD88 is a common adaptor that is essential for proinflammatory cytokine production, whereas TRIF mediates the MyD88-independent pathway from TLR3 and TLR4. Here we have identified a fourth TIR domain-containing adaptor, TRIF-related adaptor molecule ( TRAM), and analyzed its physiological function by gene targeting. TRAM-deficient mice showed defects in cytokine production in response to the TLR4 ligand, but not to other TLR ligands. TLR4- but not TLR3- mediated MyD88-independent interferon-beta production and activation of signaling cascades were abolished in TRAM-deficient cells. Thus, TRAM provides specificity for the MyD88-independent component of TLR4 signaling.[1]

References

  1. TRAM is specifically involved in the Toll-like receptor 4-mediated MyD88-independent signaling pathway. Yamamoto, M., Sato, S., Hemmi, H., Uematsu, S., Hoshino, K., Kaisho, T., Takeuchi, O., Takeda, K., Akira, S. Nat. Immunol. (2003) [Pubmed]
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