Retinoblastoma protein-interacting zinc finger 1 (RIZ1) participates in RANKL-induced osteoclast formation via regulation of NFATc1 expression

Immunol Lett. 2010 Jul 8;131(2):166-9. doi: 10.1016/j.imlet.2010.04.006. Epub 2010 Apr 24.

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

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acid Phosphatase / biosynthesis
  • Animals
  • Antigens, Differentiation / biosynthesis
  • Bone Resorption
  • Cell Line
  • Gene Expression Regulation
  • Histone-Lysine N-Methyltransferase / genetics
  • Histone-Lysine N-Methyltransferase / immunology
  • Histone-Lysine N-Methyltransferase / metabolism*
  • Isoenzymes / biosynthesis
  • Macrophages / immunology
  • Macrophages / metabolism*
  • Macrophages / pathology
  • Mice
  • NFATC Transcription Factors / biosynthesis*
  • NFATC Transcription Factors / genetics
  • Neoplasms / metabolism*
  • Neoplasms / pathology
  • Neoplasms / physiopathology
  • Osteoclasts / immunology
  • Osteoclasts / metabolism*
  • Osteoclasts / pathology
  • RANK Ligand / metabolism
  • RNA, Small Interfering / genetics
  • Signal Transduction / genetics
  • Signal Transduction / immunology
  • Tartrate-Resistant Acid Phosphatase
  • Transcription Factors / genetics
  • Transcription Factors / immunology
  • Transcription Factors / metabolism*

Substances

  • Antigens, Differentiation
  • Isoenzymes
  • NFATC Transcription Factors
  • RANK Ligand
  • RNA, Small Interfering
  • Tnfsf11 protein, mouse
  • Transcription Factors
  • Histone-Lysine N-Methyltransferase
  • Prdm2 protein, mouse
  • Acid Phosphatase
  • Acp5 protein, mouse
  • Tartrate-Resistant Acid Phosphatase