Beziehung zwischen dem UV-Absorptionsmuster einiger Flavone und ihrer gegen L1210-Zellen cytotoxischen Aktivität |
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Authors: | Sung-Ho Ryu Byung-Zun Ahn |
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Affiliation: | 1. College of Pharmacy Chungnam National University, 300-31, Taejon, Korea
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Abstract: | The UV-pattern of several flavones, their cytotoxicities against L1210 cell and their Inhibiting effects on ATPase from the cell seem to be correlated. 5,2′-Dihydroxy-6,7,8,6′-tetramethoxyflavone (ED50=2.3 ug/ml) and 5,2′,6′-trihydroxy-6,7,8-trimethoxyflavone (ED50=4.5 ug/ml), the most active flavones studied, have shown a narrow range of the absorbance ratio, Log εII/Log εI=1.073~1.109. They have inhibited the ATPase-activity to the greatest extent. These findings suggest that a certain angle between the flavone rings B and C plays an important role for the inhibition of the enzyme activity and thus the cytotoxicity. |
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