Regulation of the expression of the type-II collagen gene in periosteum- derived cells by three members of the transforming growth factor-β superfamily

R. T. Ballock, A. Heydemann, T. Izumi, A Hari Reddi

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Although transforming growth factors-β and bone morphogenetic proteins are both capable of inducing hone formation in vivo, the target cells of their osteoinductive actions may be different. To evaluate periosteal cells as potential targets of the actions of transforming growth factor-β and bone morphogenetic protein, we investigated the ability of three members of the transforming growth factor-β superfamily to modulate expression of the gene encoding the α1(II) chain of type-II collagen in periosteum-derived cells in vitro. The results demonstrate that transforming growth factor-β mRNA is expressed by periosteum-derived cells and that exogenous transforming growth factor-β1 acts to upregulate expression of the gene encoding collagen αl (II). This effect was observed as early as 12 hours after administration of transforming growth factor-β but was not observed in response to bone morphogenetic proteins 3 or 4. No synergy was demonstrated between transforming growth factor-β and bone morphogenetic protein-3 in the ability to upregulate expression of the collagen α1(II) gene. These results support the hypothesis that committed periosteal mesenchymal cells are cellular targets of the action of transforming growth factor-β.

Original languageEnglish (US)
Pages (from-to)463-467
Number of pages5
JournalJournal of Orthopaedic Research
Volume15
Issue number3
DOIs
StatePublished - May 1997
Externally publishedYes

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Periosteum
Collagen Type II
Transforming Growth Factors
Genes
Bone Morphogenetic Protein 3
Bone Morphogenetic Proteins
Up-Regulation
Collagen
Bone Morphogenetic Protein 4
Gene Expression
Action Potentials
Messenger RNA

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine

Cite this

Regulation of the expression of the type-II collagen gene in periosteum- derived cells by three members of the transforming growth factor-β superfamily. / Ballock, R. T.; Heydemann, A.; Izumi, T.; Reddi, A Hari.

In: Journal of Orthopaedic Research, Vol. 15, No. 3, 05.1997, p. 463-467.

Research output: Contribution to journalArticle

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