Reciprocal roles of Msx2 in regulation of osteoblast and adipocyte differentiation

Fumitaka Ichida, Riko Nishimura, Kenji Hata, Takuma Matsubara, Fumiyo Ikeda, Kunihiro Hisada, Hirofumi Yatani, Xu Cao, Toshihisa Komori, Akira Yamaguchi, Toshiyuki Yoneda

Research output: Contribution to journalArticle

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Abstract

Mice deficient in the Msx2 gene manifest defects in skull ossification and a marked reduction in bone formation associated with decreases in osteoblast numbers, thus suggesting that Msx2 is involved in bone formation. However, the precise role of Msx2 during osteoblast differentiation is not fully understood. In the present study, we investigated the role of Msx2 in the regulation of osteoblast differentiation in the multipotent mesenchymal cell lines C3H10T1/2 and C2C12 and in murine primary osteoblasts. Introduction of Msx2 induced alkaline phosphatase activity in C3H10T1/2 and C2C12 cells and promoted the calcification of murine primary osteoblasts. This effect of Msx2 was also observed in mesenchymal cells isolated from Runx2-deficient mice. Interestingly the expression of Msx2 was induced by bone morphogenetic protein 2 treatment in Runx2-deficient mesenchymal cells. In contrast, Msx2 diminished peroxisome proliferator-activated receptor γ (PPARγ) expression and adipogenesis of the preadipocytic cell line 3T3-F442A. Moreover Msx2 inhibited the transcriptional activity of PPARγ, CCAAT/enhancer-binding protein β (C/EBPβ), and C/EBPδ and blocked adipocyte differentiation of mesenchymal cells induced by overexpression of PPARγ, C/EBPα, C/EBPβ, or C/EBPδ. These data indicate that Msx2 promotes osteoblast differentiation independently of Runx2 and negatively regulates adipocyte differentiation through inhibition of PPARγ and the C/EBP family.

Original languageEnglish
Pages (from-to)34015-34022
Number of pages8
JournalJournal of Biological Chemistry
Volume279
Issue number32
DOIs
Publication statusPublished - Aug 6 2004
Externally publishedYes

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CCAAT-Enhancer-Binding Proteins
Osteoblasts
Adipocytes
Peroxisome Proliferator-Activated Receptors
Osteogenesis
Cells
Bone
Cell Line
Adipogenesis
Bone Morphogenetic Protein 2
Skull
Alkaline Phosphatase
Cell Differentiation
Genes
Defects

All Science Journal Classification (ASJC) codes

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

Ichida, F., Nishimura, R., Hata, K., Matsubara, T., Ikeda, F., Hisada, K., ... Yoneda, T. (2004). Reciprocal roles of Msx2 in regulation of osteoblast and adipocyte differentiation. Journal of Biological Chemistry, 279(32), 34015-34022. https://doi.org/10.1074/jbc.M403621200

Reciprocal roles of Msx2 in regulation of osteoblast and adipocyte differentiation. / Ichida, Fumitaka; Nishimura, Riko; Hata, Kenji; Matsubara, Takuma; Ikeda, Fumiyo; Hisada, Kunihiro; Yatani, Hirofumi; Cao, Xu; Komori, Toshihisa; Yamaguchi, Akira; Yoneda, Toshiyuki.

In: Journal of Biological Chemistry, Vol. 279, No. 32, 06.08.2004, p. 34015-34022.

Research output: Contribution to journalArticle

Ichida, F, Nishimura, R, Hata, K, Matsubara, T, Ikeda, F, Hisada, K, Yatani, H, Cao, X, Komori, T, Yamaguchi, A & Yoneda, T 2004, 'Reciprocal roles of Msx2 in regulation of osteoblast and adipocyte differentiation', Journal of Biological Chemistry, vol. 279, no. 32, pp. 34015-34022. https://doi.org/10.1074/jbc.M403621200
Ichida, Fumitaka ; Nishimura, Riko ; Hata, Kenji ; Matsubara, Takuma ; Ikeda, Fumiyo ; Hisada, Kunihiro ; Yatani, Hirofumi ; Cao, Xu ; Komori, Toshihisa ; Yamaguchi, Akira ; Yoneda, Toshiyuki. / Reciprocal roles of Msx2 in regulation of osteoblast and adipocyte differentiation. In: Journal of Biological Chemistry. 2004 ; Vol. 279, No. 32. pp. 34015-34022.
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