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Article

Ellagic acid inhibits human glioblastoma growth in vitro and in vivo

  • Authors:
    • Dongliang Wang
    • Qianxue Chen
    • Yinqiu Tan
    • Baohui Liu
    • Chao Liu
  • View Affiliations / Copyright

    Affiliations: Department of Neurosurgery, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
  • Pages: 1084-1092
    |
    Published online on: December 22, 2016
       https://doi.org/10.3892/or.2016.5331
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Abstract

Ellagic acid (EA) is present in various fruits and plants and has recently been found to possess anticarcinogenic effects. The objective of this study was to investigate the anti‑glioblastoma effect of EA and its mechanisms in vitro and in vivo. We first studied the anticancer activity of EA in U87 and U118 human glioblastoma cell lines. The cell viability and cell proliferation were examined by Cell Counting Kit-8 (CCK-8) assay and 5-ethynyl-2'-deoxyuridine staining respectively. The cell cycle was detected with propidium iodide staining method by flow cytometry and the DNA damage of the cells caused by EA exposure was evaluated by detection of γ-H2AX foci. Then we examined the effect of EA on tumor growth in glioblastoma xenografted mice, and expression of Akt and Notch signaling and their target gene products were detected by immunohistochemistry and western blot analysis. As a result, we found that the cell viability and proliferation of glioblastoma cells treated with EA were significantly suppressed compared with the control; EA significantly increased the proportion of cells in the S phase accompanied by a decrease in the population in the G1 and G2/M phase in both cell lines. Meanwhile, the level of DNA damage in the EA-treated group was significantly higher than that of the control. Treatment of glioblastoma in xenografted mice by EA led to a significant suppression in tumor growth. EA upregulated the expression of E-cadherin and inhibited the expression of Snail, matrix metalloproteinase (MMP)-2 and MMP-9. EA also inhibited the expression of Bcl-2, cyclin D1, cyclin-dependent kinase (CDK)2 and CDK6 in U87 xenograft tissues. In addition, significant suppression of Akt and Notch was found in the xenografts of the tumor-bearing mice treated with EA. These data indicate that EA can suppress glioblastoma proliferation and invasion by inhibiting the Akt and Notch signaling pathways, which suggests that EA may be beneficial for the treatment of glioblastoma.
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Copy and paste a formatted citation
Spandidos Publications style
Wang D, Chen Q, Tan Y, Liu B and Liu C: Ellagic acid inhibits human glioblastoma growth in vitro and in vivo. Oncol Rep 37: 1084-1092, 2017.
APA
Wang, D., Chen, Q., Tan, Y., Liu, B., & Liu, C. (2017). Ellagic acid inhibits human glioblastoma growth in vitro and in vivo. Oncology Reports, 37, 1084-1092. https://doi.org/10.3892/or.2016.5331
MLA
Wang, D., Chen, Q., Tan, Y., Liu, B., Liu, C."Ellagic acid inhibits human glioblastoma growth in vitro and in vivo". Oncology Reports 37.2 (2017): 1084-1092.
Chicago
Wang, D., Chen, Q., Tan, Y., Liu, B., Liu, C."Ellagic acid inhibits human glioblastoma growth in vitro and in vivo". Oncology Reports 37, no. 2 (2017): 1084-1092. https://doi.org/10.3892/or.2016.5331
Copy and paste a formatted citation
x
Spandidos Publications style
Wang D, Chen Q, Tan Y, Liu B and Liu C: Ellagic acid inhibits human glioblastoma growth in vitro and in vivo. Oncol Rep 37: 1084-1092, 2017.
APA
Wang, D., Chen, Q., Tan, Y., Liu, B., & Liu, C. (2017). Ellagic acid inhibits human glioblastoma growth in vitro and in vivo. Oncology Reports, 37, 1084-1092. https://doi.org/10.3892/or.2016.5331
MLA
Wang, D., Chen, Q., Tan, Y., Liu, B., Liu, C."Ellagic acid inhibits human glioblastoma growth in vitro and in vivo". Oncology Reports 37.2 (2017): 1084-1092.
Chicago
Wang, D., Chen, Q., Tan, Y., Liu, B., Liu, C."Ellagic acid inhibits human glioblastoma growth in vitro and in vivo". Oncology Reports 37, no. 2 (2017): 1084-1092. https://doi.org/10.3892/or.2016.5331
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