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- W1978133816 abstract "To better understand whether replication-error-type instability (RER+) is a frequent genetic alteration event in surgical-pathologic stage-I non-small-cell lung cancer (NSCLC) and identify whether it constitutes an independent prognostic parameter, we examined 35 surgical-pathologic stage-I-NSCLC patients with complete follow-up in all cases for at least 49 months. The tumor samples and the paired histopathologically normal lung samples for each patient were analyzed for 8 microsatellite markers located at chromosomes 3p and 2p to investigate microsatellite alterations such as RER+ and loss of heterozygosity (LOH). Single-strand-conformation-polymorphism analysis for detection of p53 and k-ras gene mutations was also carried out. Genetic data were correlated with clinical outcome and histopathologically established prognostic factors. RER+ at one or both chromosomes was identified in 24 of the 35 patients; 9 patients showed LOH. A statistically significant correlation was found between RER+ and poor prognosis (p = 0.001). Furthermore, RER+ proved to be an independent factor that predicted decreased survival, ranking first, followed by visceral pleural invasion. A trend towards worse survival was strongest in the group of patients with tumor size greater than 3 cm (T2). Patients with other genetic abnormalities, such as K-ras mutations, p53 mutations or LOH, had prognoses similar to those of patients without such aberrations. The data suggest that RER+ is common in NSCLC, that it may provide important prognostic information in stage-I NSCLC and serve as a useful marker for relapse-risk assessment in operable NSCLC patients." @default.
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- W1978133816 date "1997-06-20" @default.
- W1978133816 modified "2023-10-06" @default.
- W1978133816 title "Reduced survival in patients with stage-I non-small-cell lung cancer associated with DNA-replication errors" @default.
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- W1978133816 doi "https://doi.org/10.1002/(sici)1097-0215(19970620)74:3<330::aid-ijc17>3.0.co;2-f" @default.
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