Table 5.
Compounds tested | IC50 (μM)* | |
---|---|---|
37b | 1.2±0.22 | |
38 | 1.0±0.16 | |
39 | 0.9±0.24 | |
40b | 0.9±0.15 | |
41 | 0.8±0.14 | |
42b | 2.1±0.38 |
Concentration which caused 50% TPA-induced ODC activity. Apigenin (IC50 = 6.0 μM), menadione (IC50 = 8.3 μM), and deguelin (IC50 = 0.1 μM) were used as positive controls.
Compounds 37, 40, and 42 inhibited COX-1 with IC50 values of 1.19±0.18, 1.92±1.3, and 1.54±0.64 μM, respectively. Compound 37 inhibited COX-2 with and IC50 value of 1.41±0.51 μM.