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. 1995 Feb;19(2):129-35.
doi: 10.1006/cbir.1995.1053.

Uncoordinate expressions of type I and III collagens, collagenase and tissue inhibitor of matrix metalloproteinase 1 along in vitro proliferative life span of human skin fibroblasts. Regulation by all-trans retinoic acid

V Bizot-Foulon  1 , B Bouchard, W Hornebeck, L Dubertret, B Bertaux
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Uncoordinate expressions of type I and III collagens, collagenase and tissue inhibitor of matrix metalloproteinase 1 along in vitro proliferative life span of human skin fibroblasts. Regulation by all-trans retinoic acid

V Bizot-Foulon et al. Cell Biol Int. 1995 Feb.

Abstract

In vitro human skin fibroblasts aging was characterized by a continuous increase of collagenase mRNA levels. On the contrary, TIMP-1 mRNA level decreased only at late passages (> 65% of proliferative life span). Type I and III mRNA levels showed a high variability depending on cell strains studied. However, type I and III collagen expressions varied parallely. All-trans retinoic acid (RA) decreased collagenase expression and stimulated TIMP-1 expression. Under RA action, high variability in mRNAs levels encoding type I and III collagens was observed with HSF passages. However, RA tended to correct variations in collagens expressions observed along HSF life span.

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