Sesquiterpene lactones as inhibitors of IL‐8 expression in HeLa cells. - Lindenmeyer,M.T.; Hrenn,A.; Kern,C.; Castro,V.; Murillo,R.; Muller,S.; Laufer,S.; Schulte-Mönting,J.; Siedle,B.; Merfort,I. (Bioorg Med Chem, 2006)