Abstract: Objective To observe the effect of anti-survivin oligonucleotides (ASODN) on the invasion and growth of
peritoneally implanted ovarian cancer cell xenografts in nude mice. Methods Nude mouse models bearing peritoneally
implanted ovarian cancer cell (SKOV3) xenografts were established and subjected to intraperitoneal injection of survivin
ASODN or saline (control). The number and weight of the intraperitoneal xenografts were compared between the two groups.
The expressions of interieukin (IL-6), signal transducer and activator of transcription3 (STAT3), phosphorylated STAT3
(p-STAT3), and survivin protein in the tumor tissues were detected with Western blotting in both groups. Results Compared
with those in the control group, the number and weight of the intraperitoneal xenografts were significantly reduced in
ASODN group (P<0.05). ASODN treatment also resulted in significantly lowered protein levels of IL-6, STAT3, p-STAT3, and
survivin in the tumor tissues (P<0.05). Conclusion Survivin ASODN can suppress the invasion and migration capacity of
ovarian cancer cells and inhibit peritoneal metastasis of the tumor in nude mice possibly though down-regulation of IL-6/
STAT3 signaling pathway.