Meloxicam (Compound 5) is a non-steroidal antiinflammatory agent, inhibits COX activity, with IC50s of 0.49 μM and 36.6 μM for COX-2 and COX-1, respectively. Meloxicam inhibits COX tumor cells, but shows no cytotoxicity on CF41.Mg or MDCK cells at 0.25-25 μg/mL. Furthermore, Meloxicam in combination with doxorubicin, has no synergistic effect on CF41.Mg cells. Meloxicam (0.25 μg/mL) decreases CF41.Mg cell migration and invasion, induces decrease in MMP-2 expression, and increases β-catenin phophorylation in CF41.Mg cells, but does not affect the CF41.Mg cell apoptosis.
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