Downregulation of Inflammatory Responses by Novel Caffeic Acid Ester Derivative by Inhibiting NF-kappa B

Considering anti-tumorigenic activity of caffeic acid phenyl ester, synthesis of several esterified form of caffeic acid is a novel approach in designing for potent drugs. Our study demonstrates that esterified caffeic acid with methyl vanillate, termed as caffeic acid methyl vanillate ester (CAMVE), blocked inflammatory stimuli-induced inflammatory responses. It decreased amounts of iNOS, Cox-2, and ICAM1 by inhibiting NF-kappa B through inhibition of IKK activity, I kappa B alpha degradation, and p65 nuclear translocation. Overall, our data suggest that novel caffeic acid ester down-regulates inflammatory responses through inhibition of NF-kappa B and dependent several gene expressions, further suggesting its efficacy as a promising therapeutic agent.