Zhang ZH, Han SX, Qiu CH, Qiang O, Chen HP, Zhang CM, Li Y. Effects and mechanisms of survivin-siRNA interference on colon adenocarcinoma cells SW620.
Shijie Huaren Xiaohua Zazhi 2007;
15:3803-3808. [DOI:
10.11569/wcjd.v15.i36.3803]
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Abstract
AIM: To investigate the effects and mecha-nisms of survivin-siRNA inteference on adenocarcinoma cells SW620.
METHODS: SW620 cells were transfected with survivin-siRNA using Lipofectamine 2000. The mRNA expression levels of survivin and PTEN were detected by RT-PCR and protein expression levels were detected by Western blotting. MTT and flow cytometry were used to analyze proliferation and apoptosis.
RESULTS: Compared with control cells, the mRNA and protein levels of survivin were reduced in siRNA-transfected cells, while PTEN was increased. At 12, 24, 48 hours, the expression of survivin mRNA was downregulated 75%, 93.75% and 97.8%, respectivly, compared with that in the controls, and the expression of PTEN mRNA was upregulated 41%, 100%, 128%. The growth of transfected cells was inhibited, while apopotosis was increased.
CONCLUSION: Survivin-siRNA has preferential effects on adenocarcinoma cells.
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