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.

Recent advances and new insights in the management of early-stage epidermal growth factor receptor-mutated non-small-cell lung cancer

Patients with early-stage non-small-cell lung cancer(NSCLC)are candidates for curative surgery;however,despite multiple advances in lung cancer management,recurrence rates remain high.Adjuvant chemotherapy has been demonstrated to significantly prolong overall survival(OS),but this benefit is modest and there is an urgent need for effective new therapies to provide a cure for more patients.The high efficacy of tyrosine kinase inhibitors(TKIs)against epidermal growth factor receptor-mutated(EGFR)in patients with advanced EGFR-mutated NSCLC has led to the evaluation of these agents in early stages of the disease.Multiple clinical trials have evaluated the safety and efficacy of EGFR TKIs as an adjuvant treatment,in patients with resected EGFR-mutated NSCLC,and shown that they significantly prolong disease-free survival(DFS),but this benefit does not translate to OS.Recently,an interim analysis of the ADAURA trial demonstrated that,surprisingly,osimertinib improved DFS.This led to the study being stopped early,leaving many unanswered questions about its potential effect on OS and its incorporation as a standard adjuvant treatment in this patient subgroup.These targeted agents are also being evaluated in locally-advanced disease,with promising results,although prospective studies with larger sample sizes are needed to confirm these results.In this article,we review the most relevant studies on the role of EGFR TKIs in the management of early-stage EGFR-mutated NSCLC.