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  • Title: Identification of the hepatocyte mitogen in bovine spleen as heparin-binding growth factors.
    Author: Suzuki M, Itoh T, Suzuki T, Koga N, Kato K, Saito T, Mitsui Y.
    Journal: Biochem Biophys Res Commun; 1992 Aug 14; 186(3):1192-200. PubMed ID: 1380796.
    Abstract:
    Growth promoting activity for rat hepatocytes in bovine spleen was identified as three heparin-binding growth factors. All the features tested, such as heparin affinity, molecular mass, cross reactivity with antibody, and partial amino acid sequence, indicated that one of the three factors was identical to FGF-1 (fibroblast growth factor-1, acidic FGF), another one was related to FGF-2 (fibroblast growth factor-2, basic FGF), whereas it was more potent for hepatocytes than the FGF-2 purified from bovine brain. The third one was eluted from heparin-Sepharose column at 0.75M NaCl, of which activity was not abolished by anti-FGF-1 or FGF-2 antibodies. In addition, the mitogenic effect of this factor was synergistic with that of HGF (hepatocyte growth factor), a known potent hepatocyte mitogen, suggesting that it is a novel growth factor for hepatocytes.
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