| First Author | Hassan F | Year | 2009 |
| Journal | Cell Immunol | Volume | 256 |
| Issue | 1-2 | Pages | 99-103 |
| PubMed ID | 19251253 | Mgi Jnum | J:148550 |
| Mgi Id | MGI:3845698 | Doi | 10.1016/j.cellimm.2009.01.013 |
| Citation | Hassan F, et al. (2009) Involvement of interleukin-1 receptor-associated kinase (IRAK)-M in toll-like receptor (TLR) 7-mediated tolerance in RAW 264.7 macrophage-like cells. Cell Immunol 256(1-2):99-103 |
| abstractText | The effect of toll-like receptor (TLR) 7 ligand pretreatment on the production of tumor necrosis factor (TNF)-alpha in response to TLR7 or TLR2 ligand was examined in order to establish a new TLR-mediated tolerance. RAW 264.7 macrophage-like cells were treated with imiquimod R837 as a TLR7 ligand for 18h, washed and incubated in fresh culture medium 6h. The second challenge with imiquimod R837 as a TLR7 ligand or Pam3CysSK4 as a TLR2 ligand resulted in reduced TNF-alpha production in TLR7 ligand-pretreated cells. There was impaired activation of NF-kappaB, p38 and stress-activated protein kinase (SAPK) in the tolerant cells. The expression of IRAK-M as a negative regulator of TLR signaling was markedly augmented in the tolerant cells while the interleukin-1 receptor-associated kinase (IRAK)-1 functioned normally. The involvement of IRAK-M in the TLR7-mediated tolerance is discussed. |
