Expression and significance of Survivin mRNA in xenotransplanted nasopharyngeal carcinoma treated by paclitaxel combined with radiotherapy / 临床耳鼻咽喉头颈外科杂志

ABSTRACT

OBJECTIVE@#To investigate the expression and significance of Survivin mRNA in xenotransplanted nasopharyngeal carcinoma treated by paclitaxel combined with radiotherapy.@*METHOD@#Xenotransplanted nasopharyngeal carcinoma was established by CNE-2 cell line, then grouped and treated with paclitaxel, radiotherapy, paclitaxel combined with radiotherapy respectively. Xenotransplanted tumor volume was measured; tumor specimens were confirmed by routine hemotoxylin-eosin staining; apoptosis index was assayed by flow cytometry and Survivin mRNA was detected by one step RT-PCR.@*RESULT@#Xenotransplanted tumor growth was significantly inhibited by paclitaxel combined with radiotherapy and its inhibition rate was 99.3%. Compared to control group, apoptosis index was apparently increased in the other three groups (P0.05).@*CONCLUSION@#Paclitaxel combined with radiotherapy can induce significant killing effect in xenotransplanted nasopharyngeal carcinoma; paclitaxel can enhance the radiosensitivity of xenotransplanted nasopharyngeal carcinoma and its mechanism may rely on the down-regulation of Survivin expression.