| RRC ID |
1294
|
| Author |
Matsumoto M, Kogawa M, Wada S, Takayanagi H, Tsujimoto M, Katayama S, Hisatake K, Nogi Y.
|
| Title |
Essential role of p38 mitogen-activated protein kinase in cathepsin K gene expression during osteoclastogenesis through association of NFATc1 and PU.1.
|
| Journal |
J Biol Chem
|
| Abstract |
The receptor activator of NF-kappaB ligand (RANKL) induces various osteoclast-specific marker genes during osteoclast differentiation mediated by mitogen-activated protein (MAP) kinase cascades. However, the results of transcriptional programming of an osteoclast-specific cathepsin K gene are inconclusive. Here we report the regulatory mechanisms of RANKL-induced cathepsin K gene expression during osteoclastogenesis in a p38 MAP kinase-dependent manner. The reporter gene analysis with sequential 5'-deletion constructs of the cathepsin K gene promoter indicates that limited sets of the transcription factors such as NFATc1, PU.1, and microphthalmia transcription factor indeed enhance synergistically the gene expression when overexpressed in RAW264 cells. In addition, the activation of p38 MAP kinase is required for the maximum enhancement of the gene expression. RANKL-induced NFATc1 forms a complex with PU.1 in nuclei of osteoclasts following the nuclear accumulation of NFATc1 phosphorylated by the activated p38 MAP kinase. These results suggest that the RANKL-induced cathepsin K gene expression is cooperatively regulated by the combination of the transcription factors and p38 MAP kinase in a gradual manner.
|
| Volume |
279(44)
|
| Pages |
45969-79
|
| Published |
2004-10-29
|
| DOI |
10.1074/jbc.M408795200
|
| PII |
S0021-9258(20)72533-0
|
| PMID |
15304486
|
| MeSH |
Animals
Carrier Proteins / physiology*
Cathepsin K
Cathepsins / genetics*
Cell Differentiation
DNA-Binding Proteins / physiology*
Gene Expression Regulation, Enzymologic*
Humans
Membrane Glycoproteins / physiology*
Mice
Mice, Inbred C57BL
Microphthalmia-Associated Transcription Factor
NFATC Transcription Factors
Nuclear Proteins / physiology*
Osteoclasts / physiology*
Phosphorylation
Promoter Regions, Genetic
Proto-Oncogene Proteins / physiology*
RANK Ligand
Receptor Activator of Nuclear Factor-kappa B
Recombinant Proteins / pharmacology
Trans-Activators / physiology*
Transcription Factors / physiology*
p38 Mitogen-Activated Protein Kinases / physiology*
|
| IF |
4.238
|
| Times Cited |
274
|
|
WOS Category
|
BIOCHEMISTRY & MOLECULAR BIOLOGY
|
| Resource |
| Human and Animal Cells |
RAW 264(RCB0535) |
