Hispidulin Enhances the Anti-Tumor Effects of Temozolomide in Glioblastoma by Activating AMPK

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• 作者：YanGang Wang (1)
  WeiPing Liu (1)
  XiaoSheng He (1)
  Zhou Fei (1)
  
  1. Department of Neurosurgery ; Xijing Hospital of the Fourth Military Medical University ; No. 127 West Changle Road ; Xi鈥檃n ; 710032 ; Shaanxi ; People鈥檚 Republic of China
  
• 关键词：GBM ; TMZ ; Hispidulin ; AMPK
• 刊名：Cell Biochemistry and Biophysics
• 出版年：2015
• 出版时间：March 2015
• 年：2015
• 卷：71
• 期：2
• 页码：701-706
• 全文大小：585 KB
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• 刊物主题：Biochemistry, general; Pharmacology/Toxicology; Biotechnology; Cell Biology; Biophysics and Biological Physics;
• 出版者：Springer US
• ISSN：1559-0283

文摘

Glioblastoma is an aggressive malignancy, which is notorious for its poor prognosis. Although Temozolomide (TMZ) has been showed to be an effective chemotherapeutic agent for glioblastoma treatment, the response rate is far from satisfactory. As a natural compound with anti-cancer activity against a variety of cancers, Hispidulin is a good candidate drug for combination therapy. This study is designed to determine whether Hispidulin could potentiate the anti-tumor activity of TMZ in glioblastoma. Cell proliferation and apoptosis were determined by MTT assay and Hoechst staining, respectively. Expression of proteins relevant to apoptosis and proliferation was detected by Western blotting. Our in vitro assays showed that Hispidulin enhanced the anti-tumor activity of TMZ in glioblastoma by both inhibiting cell proliferation and inducing cell apoptosis. The anti-tumor activity of Hispidulin and the enhanced TMZ anti-tumor activity by Hispidulin induced the activation of AMPK signaling pathway. Our results showed that Hispidulin, by activating AMPK, exhibited anti-tumor activity and potentiated the anti-tumor activity of TMZ in glioblastoma. Although further preclinical and clinical studies are needed, this study provides insight for using Hispidulin as a chemosensitizing agent in clinic settings.