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  • Title: [Prognostic significance of ERCC1 mRNA expression in patients with non-small cell lung cancer receiving platinum-based chemotherapy].
    Author: Qian XP, Liu BR, Shi MQ, Liu XZ, Hu WJ, Zou ZY, Wei J.
    Journal: Zhonghua Zhong Liu Za Zhi; 2009 Jan; 31(1):33-7. PubMed ID: 19538866.
    Abstract:
    OBJECTIVE: To investigate the correlation of the mRNA expression level of excision repair cross-complementing group 1 (ERCC1) gene with clinicopathological parameters and clinical outcome in patients with non-small cell lung cancer (NSCLC) receiving platinum-based chemotherapy. METHODS: The mRNA expression of ERCC1 in formalin-fixed paraffin-embedded primary tumor specimens was measured by real-time quantitative reverse transcriptase polymerase chain reaction. The association between ERCC1 expression levels and clinicopathological parameters in NSCLC patients was analyzed. RESULTS: The median value of ERCC1 mRNA expression level compared with beta-actin in tumor specimens of 61 NSCLC patients was 0.48. There was no correlation between ERCC1 expression and clinicopathological parameters. Patients with low expression of ERCC1 mRNA (less than 0.35, 0.28, respectively) had a significantly longer median time to progression (TTP) (14.3 vs. 8.0 months, P = 0.028) and overall survival (OS) (28.4 vs. 12.9 months, P = 0.0064) than those with high expression. Multivariate analysis showed that a low ERCC1 mRNA expression was an independent factor for OS. CONCLUSION: Our findings suggest that intratumoral ERCC1 mRNA expression level, although is uncorrelated with clinicopathological parameters, is an independent predictive marker for survival of the patients with NSCLC receiving platinum-based chemotherapy, and may provide critical information for personalized chemotherapy.
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