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Article

Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene

  • Authors:
    • Jibo Wang
    • Hongda Liang
    • Yingjie Zhao
    • Xiangping Liu
    • Kun Yang
    • Aihua Sui
  • View Affiliations / Copyright

    Affiliations: Department of Rheumatology and Clinical Immunology, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China, Department of Central Laboratory, The Affiliated Hospital of Qingdao University, Qingdao, Shandong 266003, P.R. China
  • Pages: 2283-2288
    |
    Published online on: October 19, 2015
       https://doi.org/10.3892/etm.2015.2813
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Abstract

The aim of this study was to construct RNA interference (RNAi) lentiviral vector particles targeting the mouse tumor necrosis factor-α (TNF-α) gene. Three types of small interfering RNA (siRNA) targeting the mouse TNF-α gene were designed, synthesized and transfected into RAW264.7 cells. Screening was performed to identify the siRNA sequence exhibiting the highest inhibition efficiency; based on this, recombinant lentiviral plasmids were constructed and co‑transfected into 293T cells with packaging plasmids for the production of lentiviral particles. The screening results showed that the TNF‑α mRNA expression levels of the three siRNA groups were significantly lower than those of the negative control group, with the highest inhibition rate in the siRNA2 group (83.09%). Similarly, the expression levels of TNF‑α protein in the three siRNA groups were significantly lower than those of the negative control group, and the highest inhibition rate was found in the siRNA2 group (51.16%). The mRNA expression of interleukin (IL)‑1β and IL‑6 showed no significant difference among the siRNA groups and the negative control. The recombinant lentiviral shuttle plasmid was constructed, and electrophoresis revealed the polymerase chain reaction product to be 343 bp, while that of the empty vector was 306 bp; DNA sequencing showed partial insertion. The virus titer was calculated to be 2x106 TU/µl. In conclusion, RNAi lentiviral vector particles targeting the mouse TNF‑α gene were successfully obtained in the present study. This method may be used to produce lentiviral vector for the in vivo study of RNAi gene therapy targeting TNF-α.
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Copy and paste a formatted citation
Spandidos Publications style
Wang J, Liang H, Zhao Y, Liu X, Yang K and Sui A: Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene. Exp Ther Med 10: 2283-2288, 2015.
APA
Wang, J., Liang, H., Zhao, Y., Liu, X., Yang, K., & Sui, A. (2015). Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene. Experimental and Therapeutic Medicine, 10, 2283-2288. https://doi.org/10.3892/etm.2015.2813
MLA
Wang, J., Liang, H., Zhao, Y., Liu, X., Yang, K., Sui, A."Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene". Experimental and Therapeutic Medicine 10.6 (2015): 2283-2288.
Chicago
Wang, J., Liang, H., Zhao, Y., Liu, X., Yang, K., Sui, A."Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene". Experimental and Therapeutic Medicine 10, no. 6 (2015): 2283-2288. https://doi.org/10.3892/etm.2015.2813
Copy and paste a formatted citation
x
Spandidos Publications style
Wang J, Liang H, Zhao Y, Liu X, Yang K and Sui A: Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene. Exp Ther Med 10: 2283-2288, 2015.
APA
Wang, J., Liang, H., Zhao, Y., Liu, X., Yang, K., & Sui, A. (2015). Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene. Experimental and Therapeutic Medicine, 10, 2283-2288. https://doi.org/10.3892/etm.2015.2813
MLA
Wang, J., Liang, H., Zhao, Y., Liu, X., Yang, K., Sui, A."Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene". Experimental and Therapeutic Medicine 10.6 (2015): 2283-2288.
Chicago
Wang, J., Liang, H., Zhao, Y., Liu, X., Yang, K., Sui, A."Construction and identification of an RNA interference lentiviral vector targeting the mouse TNF-α gene". Experimental and Therapeutic Medicine 10, no. 6 (2015): 2283-2288. https://doi.org/10.3892/etm.2015.2813
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