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Article

Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway

  • Authors:
    • Li Gao
    • Lei Yu
    • Chun-Ming Li
    • Ying Li
    • Bao-Lin Jia
    • Bin Zhang
  • View Affiliations / Copyright

    Affiliations: Department of Oral and Maxillofacial Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China, Department of General Surgery, The Second Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China, Institute of Hard Tissue Development and Regeneration, The Second Affiliated Hospital of Harbin Medical University, Heilongjiang Academy of Medical Sciences, Harbin, Heilongjiang 150001, P.R. China
  • Pages: 3357-3362
    |
    Published online on: April 15, 2016
       https://doi.org/10.3892/or.2016.4750
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Abstract

Tumor onset and progression are associated with dysfunction of the nuclear transport machinery at the level of import and export receptors. However, the role of Karyopherin α2 (KPNA2) in human tongue squamous cell carcinoma (TSCC) remains unknown. We assessed the proliferation, apoptosis and migration of TSCC CAL-27 cells using wound healing, Transwell and MTT assays, western blotting, electron microscopy and acridine orange/ethidium bromide staining following knockdown of KPNA2. The results revealed the antiproliferative, proapoptotic and anti-migratory effects of KPNA2 silencing on the TSCC CAL-27 cells. Moreover, the knockdown of KPNA2 proved to be accompanied by the upregulation of active caspase-3, cytochrome c, Bax, Bad and decreased expression of Bcl-2, p-Bad and XIAP. KPNA2 activated the caspase-dependent pathway in the CAL-27 cells with upregulation of p53, p21Cip1/Waf1 and p16INK4a. Thus, the present study demonstrated that p53/p21Cip1/Waf1/p16INK4a may be an important pathway involved in the function of KPNA2 in TSCC CAL-27 cells.
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Copy and paste a formatted citation
Spandidos Publications style
Gao L, Yu L, Li C, Li Y, Jia B and Zhang B: Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway. Oncol Rep 35: 3357-3362, 2016.
APA
Gao, L., Yu, L., Li, C., Li, Y., Jia, B., & Zhang, B. (2016). Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway. Oncology Reports, 35, 3357-3362. https://doi.org/10.3892/or.2016.4750
MLA
Gao, L., Yu, L., Li, C., Li, Y., Jia, B., Zhang, B."Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway". Oncology Reports 35.6 (2016): 3357-3362.
Chicago
Gao, L., Yu, L., Li, C., Li, Y., Jia, B., Zhang, B."Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway". Oncology Reports 35, no. 6 (2016): 3357-3362. https://doi.org/10.3892/or.2016.4750
Copy and paste a formatted citation
x
Spandidos Publications style
Gao L, Yu L, Li C, Li Y, Jia B and Zhang B: Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway. Oncol Rep 35: 3357-3362, 2016.
APA
Gao, L., Yu, L., Li, C., Li, Y., Jia, B., & Zhang, B. (2016). Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway. Oncology Reports, 35, 3357-3362. https://doi.org/10.3892/or.2016.4750
MLA
Gao, L., Yu, L., Li, C., Li, Y., Jia, B., Zhang, B."Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway". Oncology Reports 35.6 (2016): 3357-3362.
Chicago
Gao, L., Yu, L., Li, C., Li, Y., Jia, B., Zhang, B."Karyopherin α2 induces apoptosis in tongue squamous cell carcinoma CAL-27 cells through the p53 pathway". Oncology Reports 35, no. 6 (2016): 3357-3362. https://doi.org/10.3892/or.2016.4750
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