| http://purl.uniprot.org/citations/12133979 | http://www.w3.org/1999/02/22-rdf-syntax-ns#type | http://purl.uniprot.org/core/Journal_Citation |
| http://purl.uniprot.org/citations/12133979 | http://www.w3.org/2000/01/rdf-schema#comment | "Osteoclasts, the cells capable of resorbing bone, are derived from hemopoietic precursor cells of monocyte-macrophage lineage. The same precursor cells can also give rise to macrophages and dendritic cells, which are essential for proper immune responses to various pathogens. Immune responses to microbial pathogens are often triggered because various microbial components induce the maturation and activation of immunoregulatory cells such as macrophages or dendritic cells by stimulating Toll-like receptors (TLRs). Since osteoclasts arise from the same precursors as macrophages, we tested whether TLRs play any role during osteoclast differentiation. We showed here that osteoclast precursors prepared from mouse bone marrow cells expressed all known murine TLRs (TLR1-TLR9). Moreover, various TLR ligands (e.g., peptidoglycan, poly(I:C) dsRNA, LPS, and CpG motif of unmethylated DNA, which act as ligands for TLR2, 3, 4, and 9, respectively) induced NF-kappa B activation and up-regulated TNF-alpha production in osteoclast precursor cells. Unexpectedly, however, TLR stimulation of osteoclast precursors by these microbial products strongly inhibited their differentiation into multinucleated, mature osteoclasts induced by TNF-related activation-induced cytokine. Rather, TLR stimulation maintained the phagocytic activity of osteoclast precursors in the presence of osteoclastogenic stimuli M-CSF and TNF-related activation-induced cytokine. Taken together, these results suggest that TLR stimulation of osteoclast precursors inhibits their differentiation into noninflammatory mature osteoclasts during microbial infection. This process favors immune responses and may be critical to prevent pathogenic effects of microbial invasion on bone."xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.org/dc/terms/identifier | "doi:10.4049/jimmunol.169.3.1516"xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/author | "Kim N."xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/author | "Choi Y."xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/author | "Rho J."xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/author | "Takami M."xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/date | "2002"xsd:gYear |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/name | "J Immunol"xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/pages | "1516-1523"xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/title | "Stimulation by toll-like receptors inhibits osteoclast differentiation."xsd:string |
| http://purl.uniprot.org/citations/12133979 | http://purl.uniprot.org/core/volume | "169"xsd:string |
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