A TGF-β-inducible cell adhesion molecule, βig-h3, is downregulated in melorheostosis and involved in osteogenesis

Jung Eun Kim, Eui Hyun Kim, Eun Hee Han, Rang Woon Park, Il Hyung Park, Soo Han Jun, Jung Chul Kim, Marian F. Young, In-San Kim

Research output: Contribution to journalArticle

100 Citations (Scopus)

Abstract

Melorheostosis is a rare bone disease characterized by linear hyperostosis and associated soft tissue abnormalities. The skin overlying the involved bone lesion is often tense, shiny, erythematous, and scleodermatous. In order to look for genes differentially expressed between the normal and involved skin, we cultured skin fibroblasts from the skin lesions of several afflicted patients, and identified differentially expressed genes by reverse dot-blot hybridization. We found that the genes human TGF-β-induced gene product (βig-h3), osteoblast-specific factor 2, osteonectin, fibronectin, and type I collagen were all downregulated in the affected skin fibroblasts, with βig-h3 the most significantly affected. The expression of βig-h3 was induced by TGF-β in both affected and normal fibroblasts. In an effort to determine the mechanism of bone and skin abnormalities in melorheostosis, we made recombinant βig-h3. Both immobilized and soluble recombinant βig-h3 proteins with or without an RGD motif inhibited bone nodule formation of osteoblasts in vitro. Taken together, our results suggest that altered expression of several adhesion proteins may contribute to the development of hyperostosis and concomitant soft tissue abnormalities of melorheostosis, with βig-h3 in particular playing an important role in osteogenesis. (C) 2000 Wiley-Liss, Inc.

Original languageEnglish
Pages (from-to)169-178
Number of pages10
JournalJournal of cellular biochemistry
Volume77
Issue number2
DOIs
Publication statusPublished - 2000 Apr 11
Externally publishedYes

Fingerprint

Melorheostosis
Cell Adhesion Molecules
Osteogenesis
Skin
Down-Regulation
Hyperostosis
Bone
Fibroblasts
Genes
Osteoblasts
Skin Abnormalities
Osteonectin
Bone and Bones
Immunoglobulin Genes
Tissue
Bone Diseases
Rare Diseases
Collagen Type I
Fibronectins
Proteins

Keywords

  • Fibronectin
  • Melorheostosis
  • Osteoblast differentiation
  • Osteoblast-specific factor 2
  • TGF-β-induced gene product (βig-h3)

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology

Cite this

A TGF-β-inducible cell adhesion molecule, βig-h3, is downregulated in melorheostosis and involved in osteogenesis. / Kim, Jung Eun; Kim, Eui Hyun; Han, Eun Hee; Park, Rang Woon; Park, Il Hyung; Jun, Soo Han; Kim, Jung Chul; Young, Marian F.; Kim, In-San.

In: Journal of cellular biochemistry, Vol. 77, No. 2, 11.04.2000, p. 169-178.

Research output: Contribution to journalArticle

Kim, Jung Eun ; Kim, Eui Hyun ; Han, Eun Hee ; Park, Rang Woon ; Park, Il Hyung ; Jun, Soo Han ; Kim, Jung Chul ; Young, Marian F. ; Kim, In-San. / A TGF-β-inducible cell adhesion molecule, βig-h3, is downregulated in melorheostosis and involved in osteogenesis. In: Journal of cellular biochemistry. 2000 ; Vol. 77, No. 2. pp. 169-178.
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