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A comprehensive study of polymorphisms in ABCB1, ABCC2 and ABCG2 and lung cancer chemotherapy response and prognosis
Author(s) -
Campa Daniele,
Müller Phillip,
Edler Lutz,
Knoefel Lena,
Barale Roberto,
Heussel Claus P.,
Thomas Michael,
Canzian Federico,
Risch Angela
Publication year - 2012
Publication title -
international journal of cancer
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.475
H-Index - 234
eISSN - 1097-0215
pISSN - 0020-7136
DOI - 10.1002/ijc.27567
Subject(s) - lung cancer , chemotherapy , multidrug resistance associated protein 2 , abcg2 , oncology , biology , medicine , snp , cancer research , single nucleotide polymorphism , atp binding cassette transporter , genotype , genetics , gene , transporter
ATP‐binding cassette (ABC) transporter expression and genetic heterogeneity have been implicated in response to anticancer therapy. This study characterized genetic variability of the ABCB1 (also known as MDR1 ), ABCC2 ( MRP2 ) and ABCG2 ( BCRP ) genes, which are key players in the metabolism of many chemotherapeutic agents including those used in the treatment of lung cancer. We genotyped 53 polymorphisms in the candidate genes in genomic DNA samples of 171 cases of small cell lung carcinoma (SCLC) and 206 cases of non‐small cell lung carcinoma (NSCLC), and studied their impact on early response to chemotherapy, progression‐free survival and overall survival. SNP rs717620 in ABCC2 was moderately associated with a poor response to chemotherapy but strongly with shorter progression‐free survival and overall survival in SCLC but not NSCLC patients, indicating that ABCC2 genetic variation is an important factor in SCLC survival after chemotherapy.