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Article Open Access

Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells

  • Authors:
    • Min Liu
    • Chun-Mei Li
    • Zhao-Feng Chen
    • Ri Ji
    • Qing-Hong Guo
    • Qiang Li
    • Hong-Ling Zhang
    • Yong-Ning Zhou
  • View Affiliations / Copyright

    Affiliations: Division of Gastroenterology and Hepatology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China, Division of Oncology, The First Hospital of Lanzhou University, Lanzhou, Gansu 730000, P.R. China
    Copyright: © Liu et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].
  • Pages: 1451-1458
    |
    Published online on: March 27, 2014
       https://doi.org/10.3892/ijmm.2014.1713
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Abstract

Gastric cancer, one of the most common malignancies worldwide, typically has a poor prognosis and poor survival rate. Previous studies have investigated the chemopreventive effect of celecoxib. In the present study, the SGC-7901 human gastric cancer cell line was utilized to examine the chemopreventive mechanisms of celecoxib. The inhibition of cell proliferation was determined using MTT assay, cell apoptosis was monitored by terminal deoxynucleotidyl transferase-mediated dUTP nick end‑labeling (TUNEL) and flow cytometry, and cell ultrastructural changes were assessed via transmission electron microscopy. The mRNA expression of Akt, caspase-8 and -9 was examined using quantitative reverse-transcription-polymerase chain reaction (qRT-PCR) and p-Akt, procaspase-8 and -9 were analyzed via western blotting. The results showed that celecoxib inhibited the proliferation of SGC-7901 cells in a time- and dose-dependent manner. Additionally, celecoxib induced apoptosis as substantiated by typical apoptotic bodies, autophagosomes and an increased apoptotic rate. It was found that following celecoxib treatment, Akt mRNA expression was not significantly altered, and that p-Akt protein levels decreased in a time- and dose‑dependent manner. Additionally, caspase-8 and -9 mRNA expression was significantly increased, while procaspase-8 and -9 protein expression decreased relative to the time- and dose-dependent effects. These results demonstrated that celecoxib induced apoptosis and autophagy of gastric cancer cells in vitro through the PI3K/Akt signaling pathway. Moreover, our findings suggested that celecoxib induces apoptosis in gastric cancer cells through the mitochondrial and death receptor pathways, providing additional understanding regarding the chemopreventive behaviors of celecoxib and its uses in cancer therapy.
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Copy and paste a formatted citation
Spandidos Publications style
Liu M, Li C, Chen Z, Ji R, Guo Q, Li Q, Zhang H and Zhou Y: Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells. Int J Mol Med 33: 1451-1458, 2014.
APA
Liu, M., Li, C., Chen, Z., Ji, R., Guo, Q., Li, Q. ... Zhou, Y. (2014). Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells. International Journal of Molecular Medicine, 33, 1451-1458. https://doi.org/10.3892/ijmm.2014.1713
MLA
Liu, M., Li, C., Chen, Z., Ji, R., Guo, Q., Li, Q., Zhang, H., Zhou, Y."Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells". International Journal of Molecular Medicine 33.6 (2014): 1451-1458.
Chicago
Liu, M., Li, C., Chen, Z., Ji, R., Guo, Q., Li, Q., Zhang, H., Zhou, Y."Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells". International Journal of Molecular Medicine 33, no. 6 (2014): 1451-1458. https://doi.org/10.3892/ijmm.2014.1713
Copy and paste a formatted citation
x
Spandidos Publications style
Liu M, Li C, Chen Z, Ji R, Guo Q, Li Q, Zhang H and Zhou Y: Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells. Int J Mol Med 33: 1451-1458, 2014.
APA
Liu, M., Li, C., Chen, Z., Ji, R., Guo, Q., Li, Q. ... Zhou, Y. (2014). Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells. International Journal of Molecular Medicine, 33, 1451-1458. https://doi.org/10.3892/ijmm.2014.1713
MLA
Liu, M., Li, C., Chen, Z., Ji, R., Guo, Q., Li, Q., Zhang, H., Zhou, Y."Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells". International Journal of Molecular Medicine 33.6 (2014): 1451-1458.
Chicago
Liu, M., Li, C., Chen, Z., Ji, R., Guo, Q., Li, Q., Zhang, H., Zhou, Y."Celecoxib regulates apoptosis and autophagy via the PI3K/Akt signaling pathway in SGC-7901 gastric cancer cells". International Journal of Molecular Medicine 33, no. 6 (2014): 1451-1458. https://doi.org/10.3892/ijmm.2014.1713
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