Gallic acid, a phenolic compound, exerts anti-angiogenic effects via the PTEN/AKT/HIF-1α/VEGF signaling pathway in ovarian cancer cells

  • Authors:
    • Zhiping He
    • Allen Y. Chen
    • Yon Rojanasakul
    • Gary O. Rankin
    • Yi Charlie Chen
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  • Published online on: October 27, 2015     https://doi.org/10.3892/or.2015.4354
  • Pages: 291-297
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Abstract

Gallic acid (GA), a polyphenol, is widely found in numerous fruits and vegetables, particularly in hickory nuts. In the present study, we found that gallic acid, a natural phenolic compound isolated from fruits and vegetables, had a more potent growth inhibitory effect on two ovarian cancer cell lines, OVCAR-3 and A2780/CP70, than the effect on a normal ovarian cell line, IOSE-364. These results demonstrated that GA selectively inhibits the growth of cancer cells. Gene expression was examined by ELISA and western blot analysis, and gene pathways were examined by luciferase assay. It was found that GA inhibited VEGF secretion and suppressed in vitro angiogenesis in a concentration-dependent manner. GA downregulated AKT phosphorylation as well as HIF-1α expression but promoted PTEN expression. The luciferase assay results suggest that the PTEN/AKT/HIF-1α pathway accounts for the inhibitory effect of GA on VEGF expression and in vitro angiogenesis. These findings provide strong support for the high potential of GA in the prevention and therapy of ovarian cancer.
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January-2016
Volume 35 Issue 1

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
He Z, Chen AY, Rojanasakul Y, Rankin GO and Chen YC: Gallic acid, a phenolic compound, exerts anti-angiogenic effects via the PTEN/AKT/HIF-1α/VEGF signaling pathway in ovarian cancer cells. Oncol Rep 35: 291-297, 2016.
APA
He, Z., Chen, A.Y., Rojanasakul, Y., Rankin, G.O., & Chen, Y.C. (2016). Gallic acid, a phenolic compound, exerts anti-angiogenic effects via the PTEN/AKT/HIF-1α/VEGF signaling pathway in ovarian cancer cells. Oncology Reports, 35, 291-297. https://doi.org/10.3892/or.2015.4354
MLA
He, Z., Chen, A. Y., Rojanasakul, Y., Rankin, G. O., Chen, Y. C."Gallic acid, a phenolic compound, exerts anti-angiogenic effects via the PTEN/AKT/HIF-1α/VEGF signaling pathway in ovarian cancer cells". Oncology Reports 35.1 (2016): 291-297.
Chicago
He, Z., Chen, A. Y., Rojanasakul, Y., Rankin, G. O., Chen, Y. C."Gallic acid, a phenolic compound, exerts anti-angiogenic effects via the PTEN/AKT/HIF-1α/VEGF signaling pathway in ovarian cancer cells". Oncology Reports 35, no. 1 (2016): 291-297. https://doi.org/10.3892/or.2015.4354