Signal integration in lipopolysaccharide (LPS)-stimulated murine macrophages
Signal integration in lipopolysaccharide (LPS)-stimulated murine macrophages
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脂多糖 (LPS) 刺激的小鼠巨噬细胞中的信号整合
DOI:
10.1177/09680519010070030801
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发表时间:
2001
期刊:
影响因子:
--
通讯作者:
P. Perera
中科院分区:
文献类型:
--
作者:
S. Vogel;Matthew J. Hirschfeld;P. Perera
Using a panel of LPS-inducible genes, selected for the capacity of their products to contribute to endotoxicity, normal macrophages were compared to macrophages deficient in CD14, CD11b/CD18, or TLR4 to elicit gene expression in response to Escherichia coli LPS or the LPS mimetic, Taxol. All genes were TLR4-dependent. At low doses of LPS or Taxol, all genes were also CD14-dependent; however, IP-10 and ICSBP remained poorly inducible even at much higher concentrations. A distinct subset of genes (COX-2, IL-12 p40, and IL-12 p35) was CD11b/CD18-dependent. NF-κB translocation and MAPK phosphorylation were dysregulated in receptor-deficient macrophages. In contrast to E. coli LPS, a Porphyromonas gingivalis LPS preparation was found to be TLR2-, rather than TLR4-dependent, and resulted in differential expression of genes within the panel. These data suggest that: (i) TLR4 is necessary, but not sufficient, to induce the full repertoire of genes examined; (ii) CD14 and CD11b/CD18 facilitate signaling for induction of select subsets of genes that are also TLR4-dependent; and (iii) signaling through TLR2 versus TLR4 differs quantitatively/qualitatively. These data support an LPS signaling complex on murine macrophages that minimally includes CD14, CD11b/CD18, and TLR4 to respond to E. coli LPS to elicit the full spectrum of gene expression.
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DOI:
--
发表时间:
1998
期刊:
Progress in clinical and biological research
影响因子:
--
作者:
Vogel,SN;Perera,PY;Detore,GR;Bhat,N;Carboni,JM;Haziot,A;Goyert,SM
通讯作者:
Goyert,SM
影响因子:
4.4
作者:
N. Bhat;P. Perera;J. Carboni;J. Blanco;D. Golenbock;T. Mayadas;S. Vogel
通讯作者:
N. Bhat;P. Perera;J. Carboni;J. Blanco;D. Golenbock;T. Mayadas;S. Vogel
DOI:
--
发表时间:
1994
期刊:
Journal of immunology (Baltimore, Md. : 1950)
影响因子:
--
作者:
Manthey,CL;Perera,PY;Henricson,BE;Hamilton,TA;Qureshi,N;Vogel,SN
通讯作者:
Vogel,SN
影响因子:
32.4
作者:
Haziot, A;Ferrero, E;Goyert, SM
通讯作者:
Goyert, SM
影响因子:
32.4
作者:
Coxon, A;Rieu, P;Mayadas, TN
通讯作者:
Mayadas, TN