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Article

Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells

  • Authors:
    • Yimin Lu
    • Yuanhua Liu
    • Jianzhong Jiang
    • Zhaoqing Xi
    • Ning Zhong
    • Shunbin Shi
    • Jinzhi Wang
    • Xiaodong Wei
  • View Affiliations / Copyright

    Affiliations: Department of Emergency, Jiangsu Province Hospital of TCM, Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210029, P.R. China, Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research, Nanjing, Jiangsu 210009, P.R. China, Department of Geriatrics, People's Hospital of Yixing City, Yixing, Jiangsu 214200, P.R. China, Department of Surgery, Kunshan First People's Hospital Affiliated to Jiangsu University, Kunshan, Jiangsu 215300, P.R. China, Department of Thoracic Surgery, Affiliated Wujiang Hospital of Nantong University, Suzhou, Jiangsu 215200, P.R. China, Department of Cell Biology, School of Medicine, Soochow University, Suzhou, Jiangsu 215123, P.R. China, Department of Thoracic Surgery, No. 101 Hospital of PLA, Wuxi, Jiangsu 214044, P.R. China
  • Pages: 243-249
    |
    Published online on: May 16, 2014
       https://doi.org/10.3892/or.2014.3194
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Abstract

A hallmark of small cell lung cancer (SCLC) is frequent relapse characterized by newfound resistance to formerly efficacious chemotherapies. The prognosis for SCLC patients is particularly unfavorable. Aurora kinase A (AURKA), a member of the serine/threonine kinase family, is overexpressed across many types of human tumors. Recent studies have identified AURKA as an important factor in tumorigenesis, but little is known regarding its specific roles in SCLC. The aim of the present study was to establish the roles of AURKA in the molecular pathogenesis of human SCLC. In the present study, we constructed a lentiviral vector to express siRNA against AURKA (LV-AURKA siRNA). As we expected, the viral construct effectively suppressed the expression of the AURKA gene and protein in H446 and H1688 cell lines. Additionally, RNA interference of AURKA inhibited the colony formation and subsequent growth of H446 and H1688 cell lines by increasing the incidence of cell cycle arrest in the G2/M phase. Furthermore, suppression of AURKA by LV-AURKA siRNA also increased apoptosis of SCLC cells. A potential mechanism for the increase of apoptosis is the downregulation of Bcl-2 and upregulation of Bax. AURKA gene suppression may provide a novel, effective therapy for SCLC patients by inhibiting cell division and increasing the rate of apoptosis of SCLC cells.
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Copy and paste a formatted citation
Spandidos Publications style
Lu Y, Liu Y, Jiang J, Xi Z, Zhong N, Shi S, Wang J and Wei X: Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells. Oncol Rep 32: 243-249, 2014.
APA
Lu, Y., Liu, Y., Jiang, J., Xi, Z., Zhong, N., Shi, S. ... Wei, X. (2014). Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells. Oncology Reports, 32, 243-249. https://doi.org/10.3892/or.2014.3194
MLA
Lu, Y., Liu, Y., Jiang, J., Xi, Z., Zhong, N., Shi, S., Wang, J., Wei, X."Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells". Oncology Reports 32.1 (2014): 243-249.
Chicago
Lu, Y., Liu, Y., Jiang, J., Xi, Z., Zhong, N., Shi, S., Wang, J., Wei, X."Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells". Oncology Reports 32, no. 1 (2014): 243-249. https://doi.org/10.3892/or.2014.3194
Copy and paste a formatted citation
x
Spandidos Publications style
Lu Y, Liu Y, Jiang J, Xi Z, Zhong N, Shi S, Wang J and Wei X: Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells. Oncol Rep 32: 243-249, 2014.
APA
Lu, Y., Liu, Y., Jiang, J., Xi, Z., Zhong, N., Shi, S. ... Wei, X. (2014). Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells. Oncology Reports, 32, 243-249. https://doi.org/10.3892/or.2014.3194
MLA
Lu, Y., Liu, Y., Jiang, J., Xi, Z., Zhong, N., Shi, S., Wang, J., Wei, X."Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells". Oncology Reports 32.1 (2014): 243-249.
Chicago
Lu, Y., Liu, Y., Jiang, J., Xi, Z., Zhong, N., Shi, S., Wang, J., Wei, X."Knocking down the expression of Aurora-A gene inhibits cell proliferation and induces G2/M phase arrest in human small cell lung cancer cells". Oncology Reports 32, no. 1 (2014): 243-249. https://doi.org/10.3892/or.2014.3194
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