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International Journal of Oncology
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Article

Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate

  • Authors:
    • Xiaobing Li
    • Wenhua Lu
    • Yumin Hu
    • Shijun Wen
    • Chaonan Qian
    • Wenjing Wu
    • Peng Huang
  • View Affiliations / Copyright

    Affiliations: State Key Laboratory of Oncology in South China, Sun Yat-Sen University Cancer Center, Guangzhou 510275, P.R. China
  • Pages: 1710-1718
    |
    Published online on: August 27, 2013
       https://doi.org/10.3892/ijo.2013.2080
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Abstract

Elevated aerobic glycolysis in cancer cells (Warburg effect) has been observed in many tumor types including nasopharyngeal carcinoma (NPC), which can often be detected clinically using FDG-PET. However, the role of glycolysis in supporting the growth of NPC cells and its therapeutic implications still remain to be investigated. In the present study, we showed that the LDH inhibitor oxamate significantly suppressed NPC cell proliferation in vitro and tumor growth in vivo, yet exhibited minimum toxicity to normal nasopharyngeal epithelial cells in vitro and was well tolerated in mice. Moreover, oxamate exhibited cytotoxic effect in NPC cells under hypoxia. Mechanistic study showed that oxamate significantly inhibited LDH activity, leading to a substantial decrease in glucose uptake and lactate production. Combination of oxamate with a mitochondrial respiratory complex I inhibitor resulted in a significant depletion of cellular ATP and a synergistic killing of cancer cells. Our results suggest that inhibition of glycolysis by oxamate is an effective therapeutic strategy for treatment of NPC and that combination of this compound with mitochondrial-targeted agents may improve the therapeutic activity.
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Copy and paste a formatted citation
Spandidos Publications style
Li X, Lu W, Hu Y, Wen S, Qian C, Wu W and Huang P: Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate. Int J Oncol 43: 1710-1718, 2013.
APA
Li, X., Lu, W., Hu, Y., Wen, S., Qian, C., Wu, W., & Huang, P. (2013). Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate. International Journal of Oncology, 43, 1710-1718. https://doi.org/10.3892/ijo.2013.2080
MLA
Li, X., Lu, W., Hu, Y., Wen, S., Qian, C., Wu, W., Huang, P."Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate". International Journal of Oncology 43.5 (2013): 1710-1718.
Chicago
Li, X., Lu, W., Hu, Y., Wen, S., Qian, C., Wu, W., Huang, P."Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate". International Journal of Oncology 43, no. 5 (2013): 1710-1718. https://doi.org/10.3892/ijo.2013.2080
Copy and paste a formatted citation
x
Spandidos Publications style
Li X, Lu W, Hu Y, Wen S, Qian C, Wu W and Huang P: Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate. Int J Oncol 43: 1710-1718, 2013.
APA
Li, X., Lu, W., Hu, Y., Wen, S., Qian, C., Wu, W., & Huang, P. (2013). Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate. International Journal of Oncology, 43, 1710-1718. https://doi.org/10.3892/ijo.2013.2080
MLA
Li, X., Lu, W., Hu, Y., Wen, S., Qian, C., Wu, W., Huang, P."Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate". International Journal of Oncology 43.5 (2013): 1710-1718.
Chicago
Li, X., Lu, W., Hu, Y., Wen, S., Qian, C., Wu, W., Huang, P."Effective inhibition of nasopharyngeal carcinoma in vitro and in vivo by targeting glycolysis with oxamate". International Journal of Oncology 43, no. 5 (2013): 1710-1718. https://doi.org/10.3892/ijo.2013.2080
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