WANG Hong-bin,WANG Wei-qiang,WANG Xing-wei,SUN Yong-gang,ZHOU-gang,YANG Shi-ming,FANG Dian-chun.Construction of recombinant eukaryotic expression vector of PinX1 and its roles in human gastric cancer MKN28 cell line[J].J Amry Med Univ (J Third Mil Med Univ),2009,31(12):1209-1212.
WANG Hong-bin,WANG Wei-qiang,WANG Xing-wei,SUN Yong-gang,ZHOU-gang,YANG Shi-ming,FANG Dian-chun.Construction of recombinant eukaryotic expression vector of PinX1 and its roles in human gastric cancer MKN28 cell line[J].J Amry Med Univ (J Third Mil Med Univ),2009,31(12):1209-1212.DOI:
Objective To explore the effects of PinX1 gene on the growth and the cell cycles of gastric carcinoma cell line MKN28 and the possible functions of PinX1 gene in treatment of gastric cancer. Methods After construction of the recombinant eukaryotic expression vector of PinX1 confirmed by enzyme digestion
PinX1 gene was transfected into the gastric carcinoma cell line MKN28 by liposome method. The changes in PinX1
the cell growth
and the cell cycles were detected by Western blot
MTT
and flow cytometry
respectively. Results The recombinant eukaryotic expression vector of PinX1 was constructed successfully. Establishment of the stable t
ransfection PinX1 into the gastric cancer MKN28 cell line was also successful. Transfection of PinX1 gene significantly inhibited the growth and proliferation of gastric cancer cells (P0.05). The cell growth was arrested at G
0
/G
1
stage. Conclusion As a potent telomerase inhibitor and a putative tumor suppressor
PinX1 gene may be used for the treatment of gastric cancer in clinical practice.