Open Access

MicroRNA‑18a‑5p regulates the Warburg effect by targeting hypoxia‑inducible factor 1α in the K562/ADM cell line

  • Authors:
    • Kun Wu
    • Chong Guo
    • Yixun Li
    • Jinrong Yang
    • Qiang Zhou
    • Shenju Cheng
    • Yanhong Li
    • Bo Nie
    • Yun Zeng
  • View Affiliations

  • Published online on: July 28, 2021     https://doi.org/10.3892/etm.2021.10503
  • Article Number: 1069
  • Copyright: © Wu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The Warburg effect is involved in drug resistance and recurrence of cancer, and poses a challenge for the treatment of chronic myelogenous leukemia (CML). Hypoxia‑inducible factor 1α (HIF‑1α) plays a key role in the Warburg effect. microRNAs (miRs) targeting HIF‑1α have potential of regulating such aberrant metabolic process. The present study demonstrated that miR‑18a‑5p was expressed at a low level in K562/ADM cells via reverse transcription‑quantitative PCR (RT‑qPCR). The results of the luciferase reporter assay indicated that miR‑18a‑5p could specifically bind the 3'‑untranslated region of HIF‑1α. Through RT‑qPCR and western blotting, it was revealed that miR‑18a‑5p downregulated the expression of HIF‑1α. By inhibiting HIF‑1α, miR‑18a‑5p suppressed aerobic glycolysis in K562/ADM cells, according to the results produced by glucose uptake, lactate production, pyruvate level and ATP synthesis measurement, along with the results obtained from extracellular acidification rate and oxygen consumption rate assays. These results provided new evidence that miR‑18a‑5p may suppress the Warburg effect by targeting HIF‑1α. Furthermore, via CCK‑8 and flow cytometry assays, cells transfected with miR‑18a‑5p mimics were more sensitive to Adriamycin (AMD) compared with AMD group. Reversing the Warburg effect by miR‑30a‑5p might provide a potential therapeutic strategy for CML.
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October-2021
Volume 22 Issue 4

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Wu K, Guo C, Li Y, Yang J, Zhou Q, Cheng S, Li Y, Nie B and Zeng Y: MicroRNA‑18a‑5p regulates the Warburg effect by targeting hypoxia‑inducible factor 1α in the K562/ADM cell line. Exp Ther Med 22: 1069, 2021
APA
Wu, K., Guo, C., Li, Y., Yang, J., Zhou, Q., Cheng, S. ... Zeng, Y. (2021). MicroRNA‑18a‑5p regulates the Warburg effect by targeting hypoxia‑inducible factor 1α in the K562/ADM cell line. Experimental and Therapeutic Medicine, 22, 1069. https://doi.org/10.3892/etm.2021.10503
MLA
Wu, K., Guo, C., Li, Y., Yang, J., Zhou, Q., Cheng, S., Li, Y., Nie, B., Zeng, Y."MicroRNA‑18a‑5p regulates the Warburg effect by targeting hypoxia‑inducible factor 1α in the K562/ADM cell line". Experimental and Therapeutic Medicine 22.4 (2021): 1069.
Chicago
Wu, K., Guo, C., Li, Y., Yang, J., Zhou, Q., Cheng, S., Li, Y., Nie, B., Zeng, Y."MicroRNA‑18a‑5p regulates the Warburg effect by targeting hypoxia‑inducible factor 1α in the K562/ADM cell line". Experimental and Therapeutic Medicine 22, no. 4 (2021): 1069. https://doi.org/10.3892/etm.2021.10503