West China Journal of Stomatology ›› 2020, Vol. 38 ›› Issue (1): 6-10.doi: 10.7518/hxkq.2020.01.002

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Construction of an oral squamous cell carcinoma cell line for stable PA28γ overexpression

Xin Chuan,Wang Jiongke,Li Jing,Zeng Xin()   

  1. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2019-04-16 Revised:2019-11-05 Online:2020-02-01 Published:2020-02-06
  • Contact: Xin Zeng E-mail:zengxin22@163.com
  • Supported by:
    The National Key Research Program of China(2017YFC0840100);The National Key Research Program of China(2017YFC0840107);The National Natural Science Foundation of China(81472533);The National Natural Science Foundation of China(81672675);The National Natural Science Foundation of China(281771081)


Objective To construct a PA28γ overexpression cell line and determine its effects after infecting an oral squamous cell carcinoma (OSCC) cell line. Methods The PA28γ gene was cloned into the pLOV.CMV.cherry.2A.EF1a.PuroR lentiviral vector by polymerase chain reaction (PCR), and PCR and DNA sequencing alignment analysis were used for identification. Then, 293T cells were used to package viral diseases. Infected OSCC cells were used to construct a cell line with stable PA28γ overexpression. Finally, the level of PA28γ expression in the OSCC cell line was detected through Western blot. Results The successful construction of PA28γ recombinant lentiviral vectors was confirmed by DNA sequencing. The results of immunofluorescence showed that the PA28γ overexpression lentivirus successfully infected the OSCC cells and showed cherry red fluorescence. The results of Western blot demonstrated that the constructed cells with stable PA28γ overexpression significantly increased the expression of PA28γ. Conclusion The PA28γ overexpression lentiviral vector can significantly increase its protein expression in OSCC cells. We provide a stable OSCC cell line for further study on the effect of PA28γ in OSCC.

Key words: oral squamous cell carcinoma, PA28γ, lentivirus, overexpression vector, stable overexpression cell line

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