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Article

Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells

  • Authors:
    • Shihai Liu
    • Xiangping Liu
    • Haibo Wang
    • Quan Zhou
    • Ye Liang
    • Aihua Sui
    • Ruyong Yao
    • Bin Zhao
    • Ming Sun
  • View Affiliations / Copyright

    Affiliations: Medical Research Center, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China, Center of Diagnosis and Treatment of Breast Disease, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
  • Pages: 2477-2483
    |
    Published online on: March 20, 2015
       https://doi.org/10.3892/or.2015.3872
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Abstract

Triple-negative breast cancer (TNBC), characterized by distinct biological and clinicopathological features, has a poor prognosis due to lack of effective therapeutic targets. Our previous data revealed that high levels of USP39 were selectively present in TNBC samples compared with their normal breast tissue samples and USP39 was also expressed at different levels in cultured TNBC cells and normal breast cells. Yet, the underlying cellular and molecular mechanisms of USP39 remain unclear. In the present study, we describe a doxycycline (DOX)-regulated lentiviral vector system expressing shRNA or cDNA of the USP39 gene in the TNBC cell line MDA-MB-231. USP39 expression was knocked down by the miR-30-based inducible lentiviral short hairpin RNA (shRNA) delivery system or overexpressed by the inducible cDNA system. The inducible shRNA-mediated downregulation of USP39 expression markedly reduced the proliferation and colony-forming ability of MDA-MB-231 cells, while overexpression of USP39 by the inducible system did not promote cancer cell proliferation. The lentiviral vector-mediated Tet-on system demonstrated efficient and inducible knockdown of USP39 or overexpression of USP39 in TNBC cells, facilitating a wide variety of applications for gene knockdown and overexpression experiments in gene functional studies in vitro and in vivo.
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Copy and paste a formatted citation
Spandidos Publications style
Liu S, Liu X, Wang H, Zhou Q, Liang Y, Sui A, Yao R, Zhao B and Sun M: Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells. Oncol Rep 33: 2477-2483, 2015.
APA
Liu, S., Liu, X., Wang, H., Zhou, Q., Liang, Y., Sui, A. ... Sun, M. (2015). Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells. Oncology Reports, 33, 2477-2483. https://doi.org/10.3892/or.2015.3872
MLA
Liu, S., Liu, X., Wang, H., Zhou, Q., Liang, Y., Sui, A., Yao, R., Zhao, B., Sun, M."Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells". Oncology Reports 33.5 (2015): 2477-2483.
Chicago
Liu, S., Liu, X., Wang, H., Zhou, Q., Liang, Y., Sui, A., Yao, R., Zhao, B., Sun, M."Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells". Oncology Reports 33, no. 5 (2015): 2477-2483. https://doi.org/10.3892/or.2015.3872
Copy and paste a formatted citation
x
Spandidos Publications style
Liu S, Liu X, Wang H, Zhou Q, Liang Y, Sui A, Yao R, Zhao B and Sun M: Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells. Oncol Rep 33: 2477-2483, 2015.
APA
Liu, S., Liu, X., Wang, H., Zhou, Q., Liang, Y., Sui, A. ... Sun, M. (2015). Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells. Oncology Reports, 33, 2477-2483. https://doi.org/10.3892/or.2015.3872
MLA
Liu, S., Liu, X., Wang, H., Zhou, Q., Liang, Y., Sui, A., Yao, R., Zhao, B., Sun, M."Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells". Oncology Reports 33.5 (2015): 2477-2483.
Chicago
Liu, S., Liu, X., Wang, H., Zhou, Q., Liang, Y., Sui, A., Yao, R., Zhao, B., Sun, M."Lentiviral vector-mediated doxycycline-inducible USP39 shRNA or cDNA expression in triple-negative breast cancer cells". Oncology Reports 33, no. 5 (2015): 2477-2483. https://doi.org/10.3892/or.2015.3872
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