OBJECTIVE: To observe the influence of RNA interference targeting against survivin gene on the biological behaviors of human adenoid cystic cancer (ACC) cells and propose the action mechanism. METHOD: Specific siRNA (small interfering RNA) was constructed and transfected into ACC-2 cells using liposomes. The expressions of survivin and Caspase-3 in the transfected ACC-2 cells were detected by Western Blot and RT-PCR. Cell apoptosis was detected by transmission electron microscopy, TUNEL method and flow cytometry; ultrastructural changes and cell cycles were observed. RESULTS: Recombinant siRNA interference plasmid specifically targeting against survivin gene was constructed successfully. Survivin protein expression in the transfected ACC-2 cells was downregulated significantly, while Caspase-3 protein and mRNA expressions were upregulated and cell proliferation was inhibited considerably. CONCLUSION: Recombinant siRNA interference plasmid inhibited survivin mRNA and protein expressions at high efficiency, thereby inhibiting the proliferation of ACC cells.
OBJECTIVE: To observe the influence of RNA interference targeting against survivin gene on the biological behaviors of humanadenoid cystic cancer (ACC) cells and propose the action mechanism. METHOD: Specific siRNA (small interfering RNA) was constructed and transfected into ACC-2 cells using liposomes. The expressions of survivin and Caspase-3 in the transfected ACC-2 cells were detected by Western Blot and RT-PCR. Cell apoptosis was detected by transmission electron microscopy, TUNEL method and flow cytometry; ultrastructural changes and cell cycles were observed. RESULTS: Recombinant siRNA interference plasmid specifically targeting against survivin gene was constructed successfully. Survivin protein expression in the transfected ACC-2 cells was downregulated significantly, while Caspase-3 protein and mRNA expressions were upregulated and cell proliferation was inhibited considerably. CONCLUSION: Recombinant siRNA interference plasmid inhibited survivin mRNA and protein expressions at high efficiency, thereby inhibiting the proliferation of ACC cells.
Entities:
Keywords:
Human adenoid cystic cancer cells; cell apoptosis; cell cycle; gene expression; proliferation; siRNA; survivin
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