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Article

Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo

  • Authors:
    • Jing-Xia Chang
    • Feng Gao
    • Guo-Qiang Zhao
    • Guo-Jun Zhang
  • View Affiliations / Copyright

    Affiliations: Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China, Department of Microorganisms and Immunization, Preclinical Medicine of Zhengzhou University, Zhengzhou, Henan 450052, P.R. China
  • Pages: 1543-1549
    |
    Published online on: July 22, 2014
       https://doi.org/10.3892/or.2014.3347
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Abstract

The aim of the present study was to investigate the biological behavior of lung adenocarcinoma A549 cells following transfection with NEDD9-specific lentiviral particles in vitro and in vivo. NEDD9-specific lentiviral particles were chemically synthesized and transfected into the human lung adenocarcinoma A549 cell line. NEDD9 mRNA and protein levels were determined by fluorescence quantitative RT-PCR and western blotting. Cell proliferation was evaluated using soft agar colony formation assays and flow cytometric analysis. Migration and invasion were evaluated by wound-healing and transwell assays and xenograft animal models. Transfection was successful, and expression levels of NEDD9 mRNA and protein in the lentivirus-NEDD9-siRNA group were downregulated. As indicated by soft agar colony formation assays, the number of clones in the siRNA group were significantly lower than the number of colonies in the blank and negative control groups (P<0.01). In addition, the percentage of cells in the S phase in the siRNA group was significantly lower than the percentages in the blank and negative control groups (P<0.05). Furthermore, as detected by cell migration and invasion assays, values of wound healing were increased and the number of invading cells were decreased in the siRNA group (both P<0.05). We also showed that lentivirus-mediated NEDD9-siRNA decreased the growth potential of subcutaneous A549 xenografts in vivo. These data imply that knockdown of the NEDD9 gene results in suppression of tumor cell proliferation, migration, invasion and cell growth in vitro and in vivo. Lentivirus-mediated NEDD9-siRNA may have potential therapeutic utility for human lung adenocarcinoma.
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Copy and paste a formatted citation
Spandidos Publications style
Chang J, Gao F, Zhao G and Zhang G: Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo. Oncol Rep 32: 1543-1549, 2014.
APA
Chang, J., Gao, F., Zhao, G., & Zhang, G. (2014). Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo. Oncology Reports, 32, 1543-1549. https://doi.org/10.3892/or.2014.3347
MLA
Chang, J., Gao, F., Zhao, G., Zhang, G."Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo". Oncology Reports 32.4 (2014): 1543-1549.
Chicago
Chang, J., Gao, F., Zhao, G., Zhang, G."Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo". Oncology Reports 32, no. 4 (2014): 1543-1549. https://doi.org/10.3892/or.2014.3347
Copy and paste a formatted citation
x
Spandidos Publications style
Chang J, Gao F, Zhao G and Zhang G: Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo. Oncol Rep 32: 1543-1549, 2014.
APA
Chang, J., Gao, F., Zhao, G., & Zhang, G. (2014). Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo. Oncology Reports, 32, 1543-1549. https://doi.org/10.3892/or.2014.3347
MLA
Chang, J., Gao, F., Zhao, G., Zhang, G."Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo". Oncology Reports 32.4 (2014): 1543-1549.
Chicago
Chang, J., Gao, F., Zhao, G., Zhang, G."Effects of lentivirus-mediated RNAi knockdown of NEDD9 on human lung adenocarcinoma cells in vitro and in vivo". Oncology Reports 32, no. 4 (2014): 1543-1549. https://doi.org/10.3892/or.2014.3347
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