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Updated: Jul 15, 2026
piggyBac Transposon System Modification of Primary Human T Cells
Published on: November 5, 2012
[Construction of recombinant plasmid human imprinted gene PEG10 and the primary functional identification in
Qiong Zhang1, Na Xie, Xiao-yan Wang
1Department of Gastroenterology, Affiliated Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China.
Objective:
To construct a plasmid expressing human imprinted gene PEG10 and to study the effect of overexpression of PEG10 in a stable transfected human normal liver cell line L02 and in non-liver derived cell line 293.
Methods:
Full length cDNA of PEG10 open reading frame 1 was amplified and subcloned into a mammalian expression vector pcDNA3.1hisC. Recombinant plasmid was stably transfected into L02 cells and control cells via Lipofectamine 2000. The expression and the function of PEG10 in L02 cells and control group cells were examined using RT-PCR, Western blot, MTT and TUNEL.
Results:
Recombinant plasmid was successfully constructed and confirmed through DNA sequencing and restriction digesting. PEG10 gene accelerated the growth of L02 cells and inhibited their apoptosis but it had no conspicuous effect on the non-liver derived cells.
Conclusion:
The constructed expressing vector pcDNA3.1hisC-PEG10 provides a useful tool for further study on the effects and mechanisms of PEG10. Over-expression of PEG10 may promote L02 cells' proliferation and inhibit their apoptosis, but not in the non-liver derived cell line 293.
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