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Clinical significance of mRNA expression of survivin and vascular endothelial growth factor in peripheral blood from patients with non-small cell lung cancer |
TANG Xing-ping1, LI Jian1, WANG Yi2 |
(1.Department of Respiratory, 2.Central Laboratory, the Affiliated Hospital of Jiangsu University, Zhenjiang Jiangsu 212001, China) |
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Abstract Objective: To evaluate the clinical significance of mRNA expression of survivin and vascular endothelial growth factor(VEGF) in the peripheral blood from patients with non-small cell lung cancer (NSCLC). Methods: Real-time fluorescence quantitation polymerase chain reaction(RT-PCR) was used to detect mRNA expression of survivin and VEGF in peripheral blood samples from 42 patients with NSCLC and 20 patients with benign lung disease. Results: The mRNA expression of survivin and VEGF in NSCLC patients were significantly higher than those in benign lung disease patients (P=0.006; P=0.001, respectively). The positive rates of mRNA expression of survivin and VEGF in peripheral blood from patients with NSCLC were 59.5 %(25/42) and 57.1%(24/42), respectively. Combined with the two mRNA expression made the positive rate raise to 76.2%, while the positive rates of mRNA expression of survivin and VEGF in peripheral blood from patients with benign lung disease were 5%(1/20) and 0%, respectively, which were markedly lower than those of patients with NSCLC (both P<0.001). For patients with NSCLC, the tumor TNM stage was significantly correlated with mRNA expression of survivin and VEGF (P<0.001; P=0.008, respectively), whereas there were no correlation between mRNA expression of survivin and VEGF and other pathologic characteristics. Conclusion: The mRNA expression of survivin and VEGF in peripheral blood could be used as the molecular markers for diagnosis of NSCLC; Combined with the two mRNA expression in peripheral blood could raise the detection rate of cancer cell in peripheral blood.
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Received: 16 October 2012
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