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Transforming Growth Factor-Beta Increases Steady State Levels of Type I Procollagen and Fibronectin Messenger RNAs Posttranscriptionally in Cultured Human Dermal Fibroblasts

Transforming Growth Factor-Beta Increases Steady State Levels of Type I Procollagen and Fibronectin Messenger RNAs Posttranscriptionally in Cultured Human Dermal Fibroblasts

R Raghow, A E Postlethwaite, J Keski-Oja, H L Moses, A H Kang

J Clin Invest. 1987 Apr;79(4):1285-8.

PMID: 3470308

Abstract:

Transforming growth factor-beta (TGF beta), when injected subcutaneously into newborn mice, induces a rapid fibrotic response, stimulates chemotaxis, and elevates the rates of biosynthesis of collagen and fibronectin by fibroblasts in vitro. We explored the molecular mechanisms of TGF beta-mediated stimulation of collagen and fibronectin synthesis in cultured human foreskin fibroblasts. TGF beta preferentially stimulated the synthesis of fibronectin and type I procollagen chains 3-5-fold as shown by polypeptide analysis. Concomitant elevation in the steady state levels of messenger RNAs (mRNAs) coding for type I procollagen and fibronectin also occurred but without a net increase in the rate of transcription of either of these genes. The preferential stabilization of mRNAs specifying type I procollagen and fibronectin provides a partial explanation for the mechanisms by which TGF beta enhances the synthesis of type I procollagen and fibronectin in mesenchymal cells.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR4241159	Fibronectin human foreskin fibroblasts			Price

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