Sesquiterpene lactones as inhibitors of IL-8 expression in HeLa cells
- 作者：Maja T. Lindenmeyer ; Andrea Hrenn ; Claudia Kern ; Victor Castro ; Renato Murillo ; Stefan Mü ; ller ; Stefan Laufer ; Jü ; rgen Schulte-Mö ; nting ; Bettina Siedle and Irmgard Merfort
- 关键词：Sesquiterpene lactones ; Interleukin-8 ; QSAR ; Antiinflammatory activity ; NFκ ; B ; AP-1
- 刊名：Bioorganic and Medicinal Chemistry
- 出版年：2006
- 期刊代码：9_09680896
- 类别：ch
- 出版时间：15 April 2006
- 卷：14
- 期：8
- 页码：2487-2497
- 文件大小：515 K
摘要
Twenty-four structurally different SLs were studied for their inhibition on IL-8 production in HeLa229 cells and different IC50-values were obtained. QSAR analyses revealed that the α-methylene-γ-lactone and the presence and reactivity of a second reaction center, expressed by LUMO2, are the most important descriptors for IL-8. Using two SLs as examples, we demonstrated that SLs prevent DNA binding of AP-1, which has binding sites in the IL-8 promoter together with NF-κB and C/EBP, and that this is probably due to directly targeting AP-1. p38 MAPK, which plays a role in AP-1 activation as well as in IL-8 regulation, was not influenced by SLs. These data show that NF-κB and AP-1, and consequently IL-8 may be interesting targets in antiinflammation research and that the small molecules of SLs may be powerful candidates with promising properties for therapeutic modulation of the inflammatory response.