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Article Open Access

Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting SIRT1 in esophageal cancer

Retraction in: /10.3892/etm.2023.12288
  • Authors:
    • Tao Liu
    • Xiangsen Liang
    • Yu Sun
    • Shengzhuang Yang
  • View Affiliations / Copyright

    Affiliations: Department of Cardiothoracic Surgery, Guangxi International Zhuang Medical Hospital, Nanning, Guangxi 530201, P.R. China, Department of Cardiothoracic Surgery, The Second Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi 530007, P.R. China
    Copyright: © Liu et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Article Number: 1190
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    Published online on: August 17, 2021
       https://doi.org/10.3892/etm.2021.10624
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Abstract

Rapamycin, a secondary metabolite produced by Streptomyces hygroscopicus, is known for its pharmacological effects, especially antitumor and immunosuppressive activities. However, the antitumoral effects of rapamycin in human esophageal cancer (EC) are still poorly understood. To investigate the potential of rapamycin in EC treatment, sirtuin 1 (SIRT1) mRNA expression was quantified in the tissue of patients with EC or in EC cell lines using reverse transcription‑quantitative PCR. The protein levels of SIRT1 and PI3K/AKT/mTOR were measured via western blotting. Furthermore, cell viability, migration and invasion were investigated by Cell Counting Kit‑8, wound healing and Transwell assays, respectively. The present results suggested that SIRT1 expression was upregulated in EC. In vitro, the inhibitory effect of rapamycin on cell viability in EC was strengthened or weakened after small interfering (si)‑SIRT1 or pcDNA3.1/SIRT1 transfection. Furthermore, SIRT1 rescued the inhibitory effect of rapamycin on the migration and invasion of EC cells. In vivo, si‑SIRT1 or SIRT1 overexpression in mice could enhance or rescue the inhibitory effects of rapamycin on tumor growth. In addition, SIRT1 transfection rescued the decreased level of phosphorylated (p)‑PI3K, p‑AKT and p‑mTOR induced by rapamycin treatment. Taken together, the present results suggested that rapamycin suppressed the cell viability, migration, invasion and PI3K/AKT/mTOR signaling pathway in EC by negatively regulating SIRT1.
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Copy and paste a formatted citation
Spandidos Publications style
Liu T, Liang X, Sun Y and Yang S: Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Retraction in /10.3892/etm.2023.12288. Exp Ther Med 22: 1190, 2021.
APA
Liu, T., Liang, X., Sun, Y., & Yang, S. (2021). Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Retraction in /10.3892/etm.2023.12288. Experimental and Therapeutic Medicine, 22, 1190. https://doi.org/10.3892/etm.2021.10624
MLA
Liu, T., Liang, X., Sun, Y., Yang, S."Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Retraction in /10.3892/etm.2023.12288". Experimental and Therapeutic Medicine 22.4 (2021): 1190.
Chicago
Liu, T., Liang, X., Sun, Y., Yang, S."Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Retraction in /10.3892/etm.2023.12288". Experimental and Therapeutic Medicine 22, no. 4 (2021): 1190. https://doi.org/10.3892/etm.2021.10624
Copy and paste a formatted citation
x
Spandidos Publications style
Liu T, Liang X, Sun Y and Yang S: Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Retraction in /10.3892/etm.2023.12288. Exp Ther Med 22: 1190, 2021.
APA
Liu, T., Liang, X., Sun, Y., & Yang, S. (2021). Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Retraction in /10.3892/etm.2023.12288. Experimental and Therapeutic Medicine, 22, 1190. https://doi.org/10.3892/etm.2021.10624
MLA
Liu, T., Liang, X., Sun, Y., Yang, S."Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Retraction in /10.3892/etm.2023.12288". Experimental and Therapeutic Medicine 22.4 (2021): 1190.
Chicago
Liu, T., Liang, X., Sun, Y., Yang, S."Rapamycin suppresses the PI3K/AKT/mTOR signaling pathway by targeting <em>SIRT1</em> in esophageal cancer Retraction in /10.3892/etm.2023.12288". Experimental and Therapeutic Medicine 22, no. 4 (2021): 1190. https://doi.org/10.3892/etm.2021.10624
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