Abstract
The role of retinoblastoma protein-interacting zinc finger 1 (RIZ1) in receptor activator of NF-kappaB ligand (RANKL)-induced osteoclast formation was examined in mouse RAW 264.7 macrophage-like cells. The expression of RIZ1 was significantly augmented by RANKL-treated cells. Silencing of RIZ1 with the siRNA significantly reduced the appearance of tartrate-resistant acid phosphatase (TRAP)-positive multinucleated cells as osteoclasts in RANKL-treated cells. The expression of nuclear factor of activated T cell 1 (NFATc1) as the terminal transcription factor of osteoclast formation was prevented by RIZ1 siRNA. It was suggested that that RIZ1 might participate in RANKL-induced osteoclast formation through the regulation of NFATc1 expression.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Acid Phosphatase / biosynthesis
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Animals
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Antigens, Differentiation / biosynthesis
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Bone Resorption
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Cell Line
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Gene Expression Regulation
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Histone-Lysine N-Methyltransferase / genetics
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Histone-Lysine N-Methyltransferase / immunology
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Histone-Lysine N-Methyltransferase / metabolism*
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Isoenzymes / biosynthesis
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Macrophages / immunology
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Macrophages / metabolism*
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Macrophages / pathology
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Mice
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NFATC Transcription Factors / biosynthesis*
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NFATC Transcription Factors / genetics
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Neoplasms / metabolism*
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Neoplasms / pathology
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Neoplasms / physiopathology
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Osteoclasts / immunology
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Osteoclasts / metabolism*
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Osteoclasts / pathology
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RANK Ligand / metabolism
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RNA, Small Interfering / genetics
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Signal Transduction / genetics
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Signal Transduction / immunology
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Tartrate-Resistant Acid Phosphatase
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Transcription Factors / genetics
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Transcription Factors / immunology
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Transcription Factors / metabolism*
Substances
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Antigens, Differentiation
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Isoenzymes
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NFATC Transcription Factors
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RANK Ligand
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RNA, Small Interfering
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Tnfsf11 protein, mouse
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Transcription Factors
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Histone-Lysine N-Methyltransferase
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Prdm2 protein, mouse
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Acid Phosphatase
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Acp5 protein, mouse
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Tartrate-Resistant Acid Phosphatase