The effect of Survivin antioligonucleotide on the apoptosis of Xuanwei lung adenocarcinoma cell

Objective:The aim of the study was to investigate the effects of Survivin antioligonucleotide on the proliferation,apoptosis and cell cycle of Xuanwei lung adenocarcinoma cell XWLC-05.Methods:Specific targeting Survivin ASODN was composed firstly.XWLC-05 would be divided into 4 groups:Group Sham(blank),Group Lip(simple liposome),Group Lip-SODN(transfected sense oligonucleotide) and Group Lip-ASODN(transfected ASODN).All groups had been transfected under the same condition for 48 hours.Then West blotting was used to check the expression of Survivin in cells from different groups and flow cytometer was used to find out the apoptosis rate of cells in different groups.Results:The expression of XWLC-05 Survivin in Group Lip-ASODN decreased obviously and apoptosis rate was significantly higher than that of other groups(P < 0.05).Conclusion:XWLC-05 transfected by Survivin ASODN could down regulate the expression of Survivin and lower expression of Survivin might lead to the apoptosis of XWLC-05 and restrain the proliferation of cancer cells.

Survivin ASODN targeted therapy in XWLC-05 cell transplanted nude mice

Objective:The aim of this study was to study the inhibiting effect of survivin mRNA on transplanted XWLC-05 tumor on nude mice.Methods:We established XWLC-05 transplanted nude mice model.44 mice would be divided randomly into 4 groups:control group (blank),Lip group (simple liposome),survivin SODN group (transfected by sense oligonucleotide) and survivin ASODN group (transfected by antisense oligonucleotide).We would study general activities of nude mice in these 4 groups,measure the size of tumor and calculate the tumor inhabiting rate also.Pathological methods were applied in the analysis of the effect of different treatment on heart,kidney and liver of nude mice in these 4 groups.Results:Tumor grew slowly and size,weight of tumor was lower in survivin ASODN group when compared with that of others.Nude mice of survivin ASODN group showed lower growth index and tumor inhabiting rate was significantly higher than that of other groups (P < 0.05).Transplanted tumor on nude mice in control group (blank),Lip group,and survivin SODN group grew bigger as time passed and there was no significance among them (P > 0.05).We found a great deal of tumor cell necrosis in survivin ASODN group.No death of nude mice was observed in all 4 groups and we did not found obvious lesion in vital organs.Conclusion:Survivin ASDON could be used for the inhibitation of subcutaneously transplanted tumor in nude mice without obvious lesion in vital organs.

The expression of Survivin in lung adenocarcinoma:a comparative study in Xuanwei and Kunming

Objective: The aim of our study was to investigate the expression of Survivin in lung adenocarcinoma of Xuanwei and Kunming patients. Methods: Twenty-five specimens of Xuanwei patients and 28 specimens of Kunming patients were observed and analyzed. The Survivin expression was detected by immunohistochemistry. The results were quantitatively analyzed by image analysis system. Results: There were significant differences in Survivin expression (P < 0.01) between Xuanwei patients and Kunming patients. Conclusion: Survivin expression in lung adenocarcinoma of Xuanwei patients was significantly higher than that of Kunming patients. The pathogenesis of lung adenocarcinoma might be different between Xuanwei patients and Kunming patients. High Survivin expression might be one of the reasons to explain high incidence of lung cancer in Xuanwei.