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  • Title: Effects of antiinflammatory agents on mouse skin tumor promotion, epidermal DNA synthesis, phorbol ester-induced cellular proliferation, and production of plasminogen activator.
    Author: Viaje A, Slaga TJ, Wigler M, Weinstein IB.
    Journal: Cancer Res; 1977 May; 37(5):1530-6. PubMed ID: 856468.
    Abstract:
    The antinflammatory ateroids fluocinoine acetonide, fluocinonide, and fluclorolone acetonide were found to be very effectiveinhibitory agents of mouse skin tumor promotion. These steroids also drastically inhibited epidermal DNA synthesis and epidermal cellular proliferation induced by a phorbal ester tumor promoter. In addition, these compounds were potent inhibitors, of plasminogen activator production in tumor cell cultures. The clinically used non-steroidal antiinflammatory agents oxyphenbutazone, indomethacin, and Seclazone also inhibite tumor promotion but were much less effective. Although these agents are useful against inflammatory disorders in general when given p.o., in our studies they had little effect on inflammation and epidermal cellular proliferation induced by a phorbol ester tumor promoter when given topically. The afore mentioned nonsteroidal antiinflammatory agents also had little effect on epidermal DNA synthesis. Oxyphenbutazone and indomethacin were less potent inhibitors of plasminogen activator production in tumor cells than were the antiinflammatory steroids, and Seclazone produced a negligible inhibition. There is, therefore, a general correlation in the potencies of a series of steroidal antiinflammatory agents for inhibition of tumor promotion and their ability to inhibit plasminogen activator production by tumor cell cultures and epidermal DNA synthesis.
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