scholarly journals Interferon-γ upregulates the stromelysin-1 gene expression by human skin fibroblasts in culture

1998 ◽  
Vol 30 (2) ◽  
pp. 59-64 ◽  
Author(s):  
Kyu-Suk Lee ◽  
Young-Wook Ryoo ◽  
Joon-Young Song
Cytokine ◽  
2000 ◽  
Vol 12 (6) ◽  
pp. 780-785 ◽  
Author(s):  
Eiichi Gohda ◽  
Kazunori Kuromitsu ◽  
Tetsuhiko Matsunaga ◽  
Masahiro Miyazaki ◽  
Itaru Yamamoto

FEBS Letters ◽  
1996 ◽  
Vol 387 (2-3) ◽  
pp. 109-112 ◽  
Author(s):  
Christel Praillet ◽  
Hugues Lortat-Jacob ◽  
Jean-Alexis Grimaud

1990 ◽  
Vol 271 (3) ◽  
pp. 827-830 ◽  
Author(s):  
J Heino ◽  
T Heinonen

Transforming growth factors beta 1 and beta 2 (TGF-beta 1 and TGF-beta 2) are well-characterized strong inducers of collagen gene expression. A 100 pM concentration of TGF-beta 1 or TGF-beta 2 increases pro alpha 1(I) collagen mRNA levels in human skin fibroblasts 6.6-fold and 7.0-fold respectively, and also increases the accumulation of procollagens in the cell culture medium. Interleukin-1 beta (IL-1 beta) is an inflammatory mediator which also regulates connective tissue metabolism. A small concentration of IL-1 beta (0.01-1.0 unit/ml) slightly increases pro alpha 1(I) collagen mRNA levels (2.2-fold). Here we provide evidence that IL-1 beta prevents the stimulatory effect of TGFs-beta on collagen synthesis in human skin fibroblasts. An IL-1 beta concentration of 1 unit/ml is enough to keep pro alpha 1(I) collagen mRNA levels at control values in cells stimulated by 100 pM-TGF-beta 1. Thus the results indicate that IL-1 beta inhibits collagen synthesis in cells activated by TGFs-beta, whereas it does not significantly change or might even stimulate collagen gene expression in non-activated cells.


Sign in / Sign up

Export Citation Format

Share Document