Silibinin inhibits the invasion of IL-6-stimulated colon cancer cells via selective JNK/AP-1/MMP-2 modulation in vitro

Chiu Mei Lin, Yen Hsu Chen, Hon Ping Ma, Bao Wei Wang, Jen Hwey Chiu, Su Kiat Chua, Jiann Ruey Ong, Kou-Gi Shyu

研究成果: 雜誌貢獻文章

27 引文 斯高帕斯(Scopus)

摘要

Silibinin is a flavonoid with antihepatotoxic properties and pleiotropic anticancer capabilities. This study investigated silibinin inhibition of cell invasion by down-regulating matrix metalloproteinase-2 (MMP-2) expression, via attenuation of activator protein-1 (AP-1) in IL-6-stimulated LoVo colon cancer cells. Western blot data showed that the expression of MMP-2 protein was reduced 1.6-or 1.7-fold over the control by treatment with silibinin or JNK inhibitor in the models. Similar results were revealed in zymography and confocal microscopy. Pretreatment with silibinin also abolished the binding activity of AP-1 and MMP-2 promoter activity via AP-1 binding, as observed by EMSA and luciferase assay. Finally, a [3H]-thymidine incorporation proliferation assay and cell migration assay demonstrated that silibinin inhibited IL-6-stimulated LoVo cell proliferation and invasion. Taken together, these data indicated that silibinin inhibits LoVo cell invasion with the reduction of MMP-2 presentation by attenuating AP-1 binding activity, suggesting a novel antimetastatic application for silibinin in colon cancer chemoprevention.
原文英語
頁(從 - 到)12451-12457
頁數7
期刊Journal of Agricultural and Food Chemistry
60
發行號51
DOIs
出版狀態已發佈 - 十二月 26 2012

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Chemistry(all)

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