Objective To construct recombinant expression vectors of small interfering RNA (siRNA) targeting survivin and investigate apoptosis of glioma cell line U251 mediated by the survivin-targeting siRNA. Methods According to the sequence of the coding region of survivin gene, two strings of 19 nucleotides of inverted sequence flanking the loop sequence of two complementary 9-base oligonucleotides were designed and synthesized to form hairpin construct as the DNA templates for the target siRNA. The siRNA template...