HEPARIN-BINDING FRAGMENTS OF FIBRONECTIN ARE POTENT INHIBITORS OF ENDOTHELIAL-CELL GROWTH

  • 1 January 1985
    • journal article
    • research article
    • Vol. 120  (3) , 327-332
Abstract
Two heparin-binding proteolytic fragments of fibronectin- an amino-terminal 29-kd segment and a carboxyl-terminal 40-kd segment-are apparently specific, potent inhibitors of the growth of cultured bovine aortic endothelial cells and inhibit growth in a reversible, dose-dependent manner. In contrast, native fibronectin at higher dosages neither inhibits, nor interferes with the effects of the 29-kd fragment. The data, therefore, suggest that fibronectin fragments may participate in the regulation of vascular growth.