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- W3003944241 abstract "Introduction The main treatment regimen for small cell lung cancer (SCLC) involves platinum-based chemotherapy (cisplatin or carboplatin) and etoposide. Single nucleotide polymorphisms (SNPs) in TOP2A and ERCC1 genes were tested as prognostic and predictive factors in non-small cell lung cancer (NSCLC). There are limited data about the clinical relevance of these genetic alterations in SCLC. We undertook this retrospective study to determine the influence of SNPs in TOP2A (rs34300454; rs13695; rs11540720) and ERCC1 (rs11615; rs3212986) genes on the efficiency and toxicity of chemotherapy with platinum and etoposide in SCLC Caucasian patients. Material and methods The studied group included 103 Caucasian SCLC patients (65 male, 38 female, median age 65 ±7.5 years). Detailed clinicaldemographical data were collected and response to treatment was monitored. DNA was isolated from peripheral blood leukocytes using QIAamp DNA Mini Kit. Single nucleotide polymorphisms were analyzed using TaqMan hydrolyzing probes in real-time PCR technique on an Eco Illumina device. Results Patients with C/C genotype in rs13695 of the TOP2A gene had significantly lower risk of neutropenia during chemotherapy than C/T heterozygous patients (p = 0.02, χ² = 5.51, OR = 2.676, 95% CI: 1.165–6.143). Patients harbouring homozygous C/C genotype in rs3212986 of the ERCC1 gene had significantly higher risk of anaemia during chemotherapy, than heterozygous C/A patients (p = 0.045, χ² = 4.01, OR = 0.417, 95% CI: 0.175–0.991). Furthermore, heterozygous G/A genotype in rs11615 of the ERCC1 gene was associated with significant shortening of OS (9 vs. 12 months) compared to homozygous A/A genotype (p = 0.01, χ² = 6.31, HR = 1.657, 95% CI: 1.0710–2.5633). Conclusions SNPs in ERCC1 and TOP2 genes may be associated with the toxicities and survival of SCLC patients treated with cisplatin and etoposide." @default.
- W3003944241 created "2020-02-07" @default.
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- W3003944241 date "2021-02-26" @default.
- W3003944241 modified "2023-10-11" @default.
- W3003944241 title "Effect of <i>TOP2A</i> and <i>ERCC1</i> gene polymorphisms on the efficacy and toxicity of cisplatin and etoposide-based chemotherapy in small cell lung cancer patients" @default.
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- W3003944241 doi "https://doi.org/10.5114/aoms.2020.92572" @default.
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