Curcumin inhibits the expression of COX-2 in UVB-irradiated human keratinocytes (HaCaT) by inhibiting activation of AP-1: p 38 MAP kinase and JNK as potential upstream targets. - Cho,J.W.; Park,K.; Kweon,G.R.; Jang,B.C.; Baek,W.K.; Suh,M.H.; Kim,C.W.; Lee,K.S.; Suh,S.I. (Exp Mol Med, 2005)