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. 1987 Nov 1;247(3):597–604. doi: 10.1042/bj2470597

Transforming growth factor beta (TGF beta) causes a persistent increase in steady-state amounts of type I and type III collagen and fibronectin mRNAs in normal human dermal fibroblasts.

J Varga 1, J Rosenbloom 1, S A Jimenez 1
PMCID: PMC1148454  PMID: 3501287

Abstract

It has been previously shown that transforming growth factor beta (TGF beta) is capable of stimulating fibroblast collagen and fibronectin biosynthesis. The purpose of this study was to examine the mechanisms involved in TGF beta stimulation of fibroblast biosynthetic activity. Our results indicate that TGF beta causes a marked enhancement of the production of types I and III collagens and fibronectin by cultured normal human dermal fibroblasts. The rate of collagen production by fibroblasts exposed to TGF beta was 2-3-fold greater than that of control cells. These effects were associated with a 2-3-fold increase in the steady-state amounts of types I and III collagen mRNAs and a 5-8-fold increase in the amounts of fibronectin mRNAs as determined by dot-blot hybridization with specific cloned cDNA probes. In addition, the increased production of collagen and fibronectin and the increased amounts of their corresponding mRNAs remained elevated for at least 72 h after removal of TGF beta. These findings suggest that TGF beta may play a major role in the normal regulation of extracellular matrix production in vivo and may contribute to the development of pathological states of fibrosis.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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