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Article

Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR

  • Authors:
    • Bin Wang
    • Hao Qin
    • Yuejian  Wang
    • Weixiong  Chen
    • Jie  Luo
    • Xiaolin Zhu
    • Weiping  Wen
    • Wenbin Lei
  • View Affiliations / Copyright

    Affiliations: Otorhinolaryngology Hospital, Otorhinolaryngology Institute, The First Affiliated Hospital, Sun Yat-sen University, National Key Department of Otorhinolaryngology of People's Republic of China, Guangzhou, Guangdong 510080, P.R. China, Department of Otolaryngology, The First People's Hospital of Foshan, Foshan, Guangdong 528000, P.R. China
  • Pages: 1108-1116
    |
    Published online on: June 24, 2014
       https://doi.org/10.3892/or.2014.3286
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Abstract

The aim of the present study was to explore the effect of DJ-1-mediated PI3K/AKT/mTOR pathway on the proliferation, apoptosis, invasion, migration and other tumor biological characteristics of laryngeal squamous cell SNU-46, through stable transfection and overexpression of the DJ-1 gene. Retrovirus carrying DJ-1 gene was used to stabilize transfected human laryngeal squamous carcinoma SNU-46 cell line, and monoclonal cell line of stably overexpressed DJ-1 protein was screened out by G418. DJ-1 protein expression was determined by western blotting, and changes of p-AKT, p-mTOR and PTEN protein content were detected, followed by the detection of changes in proliferation, apoptosis, invasion, migration and other tumor biological characteristics of laryngeal squamous carcinoma cell line with stably transfected DJ-1 protein overexpression by flow cytometry, CCK-8 method and Transwell. We successfully constructed a laryngeal squamous carcinoma cell line of stably overexpressed DJ-1 protein and termed it SNU-46-DJ-1. After overexpression of DJ-1 protein, the levels of PTEN expression in laryngeal squamous cell SNU-46 decreased and p-AKT and p-mTOR protein expression levels increased. Compared to the untreated SNU-46 cells, the proliferation rate of SNU-46-DJ-1 cells increased (0.834±0.336 vs. 0.676±0.112; p<0.001); invasiveness was enhanced (165.7±13.6 vs. 100.0±17.4; p=0.001), the migration ability was enhanced (207.3±13.1 vs. 175.3±13.3; p=0.036), and the apoptosis rate decreased (3.533±5.167 vs. 16.397±5.447%; p=0.019). The overexpression of DJ-1 protein in laryngeal squamous carcinoma SNU-46 cells can accelerate proliferation rate, increase the invasion and migration capacity, and reduce apoptosis, by activating the PI3K/AKT/mTOR pathway.
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Copy and paste a formatted citation
Spandidos Publications style
Wang B, Qin H, Wang Y, Chen W, Luo J, Zhu X, Wen W and Lei W: Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR. Oncol Rep 32: 1108-1116, 2014.
APA
Wang, B., Qin, H., Wang, Y., Chen, W., Luo, J., Zhu, X. ... Lei, W. (2014). Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR. Oncology Reports, 32, 1108-1116. https://doi.org/10.3892/or.2014.3286
MLA
Wang, B., Qin, H., Wang, Y., Chen, W., Luo, J., Zhu, X., Wen, W., Lei, W."Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR". Oncology Reports 32.3 (2014): 1108-1116.
Chicago
Wang, B., Qin, H., Wang, Y., Chen, W., Luo, J., Zhu, X., Wen, W., Lei, W."Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR". Oncology Reports 32, no. 3 (2014): 1108-1116. https://doi.org/10.3892/or.2014.3286
Copy and paste a formatted citation
x
Spandidos Publications style
Wang B, Qin H, Wang Y, Chen W, Luo J, Zhu X, Wen W and Lei W: Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR. Oncol Rep 32: 1108-1116, 2014.
APA
Wang, B., Qin, H., Wang, Y., Chen, W., Luo, J., Zhu, X. ... Lei, W. (2014). Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR. Oncology Reports, 32, 1108-1116. https://doi.org/10.3892/or.2014.3286
MLA
Wang, B., Qin, H., Wang, Y., Chen, W., Luo, J., Zhu, X., Wen, W., Lei, W."Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR". Oncology Reports 32.3 (2014): 1108-1116.
Chicago
Wang, B., Qin, H., Wang, Y., Chen, W., Luo, J., Zhu, X., Wen, W., Lei, W."Effect of DJ-1 overexpression on the proliferation, apoptosis, invasion and migration of laryngeal squamous cell carcinoma SNU-46 cells through PI3K/AKT/mTOR". Oncology Reports 32, no. 3 (2014): 1108-1116. https://doi.org/10.3892/or.2014.3286
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