First Author | Miller LS | Year | 2006 |
Journal | Immunity | Volume | 24 |
Issue | 1 | Pages | 79-91 |
PubMed ID | 16413925 | Mgi Jnum | J:113315 |
Mgi Id | MGI:3665383 | Doi | 10.1016/j.immuni.2005.11.011 |
Citation | Miller LS, et al. (2006) MyD88 mediates neutrophil recruitment initiated by IL-1R but not TLR2 activation in immunity against Staphylococcus aureus. Immunity 24(1):79-91 |
abstractText | MyD88 is an important signaling adaptor for both TLR and IL-1R family members. Here, we evaluated the role of TLR2/MyD88 and IL-1R/MyD88 signaling in host defense against S. aureus by using a cutaneous infection model in conjunction with bioluminescent bacteria. We found that lesions of S. aureus-infected MyD88- and IL-1R-deficient mice were substantially larger with higher bacterial counts compared with wild-type mice. In contrast, TLR2-deficient mice had lesions that were only moderately larger with minimally higher bacterial counts. In addition, MyD88- and IL-1R- but not TLR2-deficient mice had severely decreased recruitment of neutrophils to the site of infection. This neutrophil recruitment was not dependent upon IL-1R/MyD88 signaling by recruited bone marrow-derived cells, suggesting that resident skin cells utilize IL-1R/MyD88 signaling to promote neutrophil recruitment. |