[Combined application the siRNA target for Hif-lα and Survivin gene to human NPC CNE-2 cell and its effects on the proliferation and cycle of this cell].

OBJECTIVE: To study the combined transfection of the siRNA target for Hif-lα and Survivin gene to human NPC CNE-2 cell and its effects on the proliferation and cycle of this cell. METHOD: Combined transfection of the siRNA target for Hif-lα and Survivin gene to human NPC CNE-2 cell, these plasmids were respectively transfected into the same cells. Cell proliferation was detected with MTT assay. The inhibitory effects on target genes were evaluated with RT-PCR and Western Blot at the levels of mRNA and protein, respectively. RESULT: MTT showed that CNE-2 cell proliferation in multi-gene plasmid group was more significantly inhibited than a single gene. The expression of mRNA and protein of two different genes were both decreased in HS group, and the interference effect of multiple genes was better than the single-gene(P<0.01). CONCLUSION: HS group could restrain cell proliferation and interference the mRNA and protein expression in nasopharyngeal carcinoma CNE-2 cell, which was better than the other groups.