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  • Title: Protease inhibitors from processed legumes effectively inhibit superoxide generation in response to TPA.
    Author: Yavelow J, Gidlund M, Troll W.
    Journal: Carcinogenesis; 1982; 3(2):135-8. PubMed ID: 6279327.
    Abstract:
    Crude extracts containing protease inhibitors from edible legumes (canned chick-peas, canned kidney beans and bean curd) were capable of blocking the superoxide response to human polymorphonuclear leukocytes produced by the tumor promoter 12-O-tetradecanoyl-phorbol-13-acetate (TPA). Protease inhibitors purified from crude extracts more effectively blocked the superoxide response produced by TPA. Bowman-Birk soybean inhibitor was more effective in blocking this effect of the tumor promoter than Kunitz soybean inhibitor. The significance of protease inhibitors in edible legumes and the possible role of free oxygen radicals in tumor promotion are discussed.
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