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Article

Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy

  • Authors:
    • Ze‑Shun Zhang
    • Jing Wang
    • You‑Bi Shen
    • Cheng‑Cheng Guo
    • Ke Sai
    • Fu‑Rong Chen
    • Xin Mei
    • Fu Han
    • Zhong‑Ping Chen
  • View Affiliations / Copyright

    Affiliations: Department of Neurosurgery, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou, Guangdong 510120, P.R. China, Department of Neurosurgery/Neuro‑Oncology, Sun Yat‑Sen University Cancer Center; State Key Laboratory of Oncology in South China; Collaborative Innovation Center for Cancer Medicine, Guangzhou, Guangdong 510060, P.R. China
  • Pages: 379-383
    |
    Published online on: May 6, 2015
       https://doi.org/10.3892/ol.2015.3183
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Abstract

Artemisinin, a powerful antimalarial medicine, is extracted from the Chinese herb, Artemisia annua L., and has the ability to inhibit the proliferation of cancer cells. Dihydroartemisinin (DHA), the major active metabolite of artemisinin, is able to inhibit the growth of a variety of types of human cancer. However, the effect of DHA on human glioma cells remains unclear. The aim of the present study was to investigate the effect of DHA on the proliferation of glioma cells, and whether DHA was able to enhance temozolomide (TMZ) sensitivity in vitro and in vivo. In total, 10 human glioma cell lines were used to analyze the growth inhibition ability of DHA by MTT assay. The typical autophagic vacuoles were monitored by the application of the autofluorescent agent, monodansylcadaverine. Western blotting was used to detect markers of apoptosis and autophagy, namely Caspase‑3, Beclin‑1 and LC3‑B. The combination efficiency of DHA and TMZ was assessed in vitro and in vivo. The half maximal inhibitory concentration (IC50) of DHA differed among the ten human glioma cell lines. The number of autophagic vacuoles was higher in DHA‑treated SKMG‑4 cells; this was highest of all cell lines analyzed. The expression of autophagy molecular markers, Beclin‑1 and LC3‑B, was increased following DHA treatment, while no significant alteration was detected in the expression of apoptotic marker Caspase‑3. When combined with DHA, the IC50 of TMZ decreased significantly in the four glioma cell lines analyzed. Furthermore, DHA enhanced the tumor inhibition ability of TMZ in tumor-burdened mice. The results of the present study demonstrated that DHA inhibited the proliferation of glioma cells and enhanced the tumor inhibition efficacy of TMZ in vitro and in vivo through the induction of autophagy.
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Copy and paste a formatted citation
Spandidos Publications style
Zhang ZS, Wang J, Shen YB, Guo CC, Sai K, Chen FR, Mei X, Han F and Chen ZP: Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy. Oncol Lett 10: 379-383, 2015.
APA
Zhang, Z., Wang, J., Shen, Y., Guo, C., Sai, K., Chen, F. ... Chen, Z. (2015). Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy. Oncology Letters, 10, 379-383. https://doi.org/10.3892/ol.2015.3183
MLA
Zhang, Z., Wang, J., Shen, Y., Guo, C., Sai, K., Chen, F., Mei, X., Han, F., Chen, Z."Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy". Oncology Letters 10.1 (2015): 379-383.
Chicago
Zhang, Z., Wang, J., Shen, Y., Guo, C., Sai, K., Chen, F., Mei, X., Han, F., Chen, Z."Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy". Oncology Letters 10, no. 1 (2015): 379-383. https://doi.org/10.3892/ol.2015.3183
Copy and paste a formatted citation
x
Spandidos Publications style
Zhang ZS, Wang J, Shen YB, Guo CC, Sai K, Chen FR, Mei X, Han F and Chen ZP: Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy. Oncol Lett 10: 379-383, 2015.
APA
Zhang, Z., Wang, J., Shen, Y., Guo, C., Sai, K., Chen, F. ... Chen, Z. (2015). Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy. Oncology Letters, 10, 379-383. https://doi.org/10.3892/ol.2015.3183
MLA
Zhang, Z., Wang, J., Shen, Y., Guo, C., Sai, K., Chen, F., Mei, X., Han, F., Chen, Z."Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy". Oncology Letters 10.1 (2015): 379-383.
Chicago
Zhang, Z., Wang, J., Shen, Y., Guo, C., Sai, K., Chen, F., Mei, X., Han, F., Chen, Z."Dihydroartemisinin increases temozolomide efficacy in glioma cells by inducing autophagy". Oncology Letters 10, no. 1 (2015): 379-383. https://doi.org/10.3892/ol.2015.3183
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