CD38 is involved in cell energy metabolism via activating the PI3K/AKT/mTOR signaling pathway in cervical cancer cells

  • Authors:
    • Shan Liao
    • Lin Liang
    • Chunxue Yue
    • Junyu He
    • Zhengxi He
    • Xi Jin
    • Gengqiu Luo
    • Yanhong Zhou
  • View Affiliations

  • Published online on: April 8, 2020     https://doi.org/10.3892/ijo.2020.5040
  • Pages: 338-354
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Abstract

In contrast to normal cells, cancer cells typically undergo metabolic reprogramming. Studies have shown that oncogenes play an important role in this metabolic reprogramming. CD38 is a multifunctional transmembrane protein that is expressed abnormally in a variety of tumor types. To investigate the effect and possible mechanism of CD38 in cervical cancer cells and to provide a new therapeutic target for the treatment of cervical cancer, the present study identified that CD38 is involved in regulating cell metabolism in cervical cancer cells. Liquid chromatography‑tandem mass spectrometry and bioinformatic analyses revealed that differentially abundant proteins in CD38‑overexpressed cervical cancer cells (CaSki‑CD38 and HeLa‑CD38) are predominantly involved in glycolytic pathways, oxidative phosphorylation and the NAD/NADH metabolic process. Further experiments using an ATP test kit and lactate test kit revealed that CD38 promotes glucose consumption, increases lactate accumulation and increases ATP production. In addition, CD38 increases the phosphorylation of phosphatidylserine/threonine kinase (AKT), mechanistic target of rapamycin (mTOR) and phosphatidylinositol‑4,5‑bisphosphate 3‑kinase (PI3K), which play a key role in tumor metabolism. Furthermore, it was found that the energy metabolism of cervical cancer cells was inhibited following treatment with the mTOR inhibitor rapamycin. In conclusion, the results of the present study suggested that CD38 regulates the metabolism of cervical cancer cells by regulating the PI3K/AKT/mTOR pathway, which may be a candidate target for the treatment of cervical cancer.

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July 2020
Volume 57 Issue 1

Print ISSN: 1019-6439
Online ISSN:1791-2423

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APA
Liao, S., Liang, L., Yue, C., He, J., He, Z., Jin, X. ... Zhou, Y. (2020). CD38 is involved in cell energy metabolism via activating the PI3K/AKT/mTOR signaling pathway in cervical cancer cells. International Journal of Oncology, 57, 338-354. https://doi.org/10.3892/ijo.2020.5040
MLA
Liao, S., Liang, L., Yue, C., He, J., He, Z., Jin, X., Luo, G., Zhou, Y."CD38 is involved in cell energy metabolism via activating the PI3K/AKT/mTOR signaling pathway in cervical cancer cells". International Journal of Oncology 57.1 (2020): 338-354.
Chicago
Liao, S., Liang, L., Yue, C., He, J., He, Z., Jin, X., Luo, G., Zhou, Y."CD38 is involved in cell energy metabolism via activating the PI3K/AKT/mTOR signaling pathway in cervical cancer cells". International Journal of Oncology 57, no. 1 (2020): 338-354. https://doi.org/10.3892/ijo.2020.5040