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Article Open Access

HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin

Corrigendum in: /10.3892/mmr.2021.12143
  • Authors:
    • Zengpeng Sun
    • Zhiguo Tan
    • Chuang Peng
    • Weimin Yi
  • View Affiliations / Copyright

    Affiliations: Department of Hepatobiliary Surgery, The First Affiliated Hospital of Hunan Normal University (Hunan Provincial People's Hospital), Changsha, Hunan 410005, P.R. China
    Copyright: © Sun et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 343
    |
    Published online on: March 9, 2021
       https://doi.org/10.3892/mmr.2021.11982
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Abstract

Glycyrrhizin (GA) is the most essential active ingredient in licorice root, and has a wide range of biological and pharmacological activities. The present study aimed to conduct a detailed analysis of the effects of GA on liver cancer (LC) cell proliferation and the Warburg effect. Hexokinase‑2 (HK2) is a glycolytic enzyme that catalyzes the Warburg effect. To this end, the LC HepG2 cell line was transfected with small interfering RNA‑HK2 or pCDNA3.1‑HK2, followed by GA treatment. A Cell Counting Kit‑8 assay and EdU staining were employed to evaluate the proliferation rate of LC cells. The expression levels of HK2 and the phosphorylation level of AKT were measured by reverse transcription‑quantitative PCR and western blotting, respectively. Furthermore, the glucose uptake capacity and lactic acid content were assessed by kits, and the glycolysis level was evaluated by assessing the extracellular acidification rate (ECAR) and the oxygen consumption rate (OCR). A pronounced increase in the OCR, and decreases in the cell proliferation, glucose uptake capacity, lactic acid content, ECAR and HK2 expression were detected in LC cells subjected to GA treatment or HK2‑knockdown. Conversely, overexpression of HK2 reversed these trends, indicating that glycyrrhizin may inhibit LC cell proliferation and the Warburg effect through suppression of HK2. In addition, it was revealed that the PI3K/AKT signaling pathway was associated with LC cell proliferation and the Warburg effect; notably, treatment of LC cells with the AKT agonist SC79 induced elevation of the ECAR, cell proliferation, glucose uptake capacity, lactic acid content, phosphorylated‑AKT and HK2 expression, and suppressed the OCR. In conclusion, GA may inhibit the Warburg effect and cell proliferation in LC by suppressing HK2 through blockade of the PI3K/AKT signaling pathway.
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Spandidos Publications style
Sun Z, Tan Z, Peng C and Yi W: HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin Corrigendum in /10.3892/mmr.2021.12143. Mol Med Rep 23: 343, 2021.
APA
Sun, Z., Tan, Z., Peng, C., & Yi, W. (2021). HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin Corrigendum in /10.3892/mmr.2021.12143. Molecular Medicine Reports, 23, 343. https://doi.org/10.3892/mmr.2021.11982
MLA
Sun, Z., Tan, Z., Peng, C., Yi, W."HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin Corrigendum in /10.3892/mmr.2021.12143". Molecular Medicine Reports 23.5 (2021): 343.
Chicago
Sun, Z., Tan, Z., Peng, C., Yi, W."HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin Corrigendum in /10.3892/mmr.2021.12143". Molecular Medicine Reports 23, no. 5 (2021): 343. https://doi.org/10.3892/mmr.2021.11982
Copy and paste a formatted citation
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Spandidos Publications style
Sun Z, Tan Z, Peng C and Yi W: HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin Corrigendum in /10.3892/mmr.2021.12143. Mol Med Rep 23: 343, 2021.
APA
Sun, Z., Tan, Z., Peng, C., & Yi, W. (2021). HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin Corrigendum in /10.3892/mmr.2021.12143. Molecular Medicine Reports, 23, 343. https://doi.org/10.3892/mmr.2021.11982
MLA
Sun, Z., Tan, Z., Peng, C., Yi, W."HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin Corrigendum in /10.3892/mmr.2021.12143". Molecular Medicine Reports 23.5 (2021): 343.
Chicago
Sun, Z., Tan, Z., Peng, C., Yi, W."HK2 is associated with the Warburg effect and proliferation in liver cancer: Targets for effective therapy with glycyrrhizin Corrigendum in /10.3892/mmr.2021.12143". Molecular Medicine Reports 23, no. 5 (2021): 343. https://doi.org/10.3892/mmr.2021.11982
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