['To investigate the effects of survivin short hairpin RNA (shRNA) on survivin expression, cell apoptosis, and chemosensitivity of human tongue cancer cell Tca8113 to cisplatin.', 'Survivin-directed shRNA plasmid vector was delivered into Tca8113 cells with lipofectamine(TM) 2000 reagent. Survivin expression was detected with the reverse transcription-polymerase chain reaction (RT-PCR) and Western blotting. Flow cytometry was used to examine cell apoptosis, and the sensitivity to anticancer agents was evaluated by methyl thiazolyl tetrazolium (MTT) assay.', 'After survivin shRNA vector transfection in Tca8113 cells, the expression of mRNA/protein declined significantly, and the apoptotic rate increased in time-dependent manner up to 37.9% at 48 hours. RNAi-mediated survivin reduction selectively inhibited growth and enhanced chemosensitivity of cisplatin but not of 5-fluorouracil.'] Does [ Silencing of survivin gene enhance chemosensitivity of human tongue cancer cell line Tca8113 to cisplatin ]?