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    Polymorphisms in DNA repair pathways may play a relevant role in lung cancer survival in never-smokers. Furthermore, they could be implicated in the response to chemotherapy and toxicity of platinum agents. The aim of this study was to evaluate the influence of various genetic polymorphisms in the BER and NER DNA repair pathways on survival and toxicity in never-smoker LC patients. The study included never-smokers LC cases diagnosed from 2011 through 2019, belonging to the Lung Cancer Research In Never Smokers study. A total of 356 never-smokers cases participated (79% women; 83% adenocarcinoma and 65% stage IV). Survival at 3 and 5 years from diagnosis was not associated with genetic polymorphisms, except in the subgroup of patients who received radiotherapy or chemo-radiotherapy, and presented with ERCC1 rs3212986 polymorphism. There was greater toxicity in those presenting OGG1 rs1052133 (CG) and ERCC1 rs11615 polymorphisms among patients treated with radiotherapy or chemo-radiotherapy, respectively. In general, polymorphisms in the BER and NER pathways do not seem to play a relevant role in survival and response to treatment among never-smoker LC patients.


    Ana Casal-Mouriño, Alberto Ruano-Ravina, María Torres-Durán, Isaura Parente-Lamelas, Mariano Provencio-Pulla, Olalla Castro-Añón, Iria Vidal-García, José Abal-Arca, María Piñeiro-Lamas, Alberto Fernández-Villar, Luis Valdés-Cuadrado, Juan Miguel Barros-Dios, Mónica Pérez-Ríos. Polymorphisms in the BER and NER pathways and their influence on survival and toxicity in never-smokers with lung cancer. Scientific reports. 2020 Dec 03;10(1):21147

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    PMID: 33273562

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