Excision repair cross-complementation group 1 polymorphism predicts overall survival in advanced non-small cell lung cancer patients treated with platinum-based chemotherapy.
DNA repair is a critical mechanism of resistance to platinum-based chemotherapy. Excision repair cross-complementation group 1 (ERCC1) is the lead enzyme in the nucleotide excision repair process. Increased ERCC1 mRNA levels are related directly to platinum resistance in various cancers. We examined the association between two polymorphisms of ERCC1, codon 118 C/T and C8092A, which are associated with altered ERCC1 mRNA levels and mRNA stability, and overall survival (OS) in 128 advanced non-small cell lung cancer patients treated with platinum-based chemotherapy. The two polymorphisms were in linkage disequilibrium. There was a statistically significant association between the C8092A polymorphism and OS (P = 0.006, by log-rank test), with median survival times of 22.3 (C/C) and 13.4 (C/A or A/A) months, respectively, suggesting that any copies of the A allele were associated with poor outcome. No statistically significant association was found for the codon 118 polymorphism and OS (P = 0.41, by log-rank test), with median survival times of 19.9 (T/T), 16.1 (C/T), and 13.3 (C/C) months, respectively. In conclusion, the ERCC1 C8092A polymorphism may be a useful predictor of OS in advanced non-small cell lung cancer patients treated with platinum-based chemotherapy.
Occupational Health Program, Departments of Environmental Health and Biostatistics, Harvard School of Public Health, Boston 02115, Massachusetts, USA.
Wei
W
Zhou
Sarada
S
Gurubhagavatula
Geoffrey
G
Liu
Sohee
S
Park
Donna S
DS
Neuberg
John C
JC
Wain
Thomas J
TJ
Lynch
Li
L
Su
David C
DC
Christiani
D000328:Adult; D000368:Aged; D000483:Alleles; D000970:Antineoplastic Agents / Q000627:therapeutic use*; D002289:Carcinoma, Non-Small-Cell Lung / Q000188:drug therapy* / Q000235:genetics* / Q000401:mortality; D003062:Codon; D004260:DNA Repair; D004268:DNA-Binding Proteins / Q000235:genetics*; D019008:Drug Resistance, Neoplasm; D004720:Endonucleases / Q000235:genetics*; D005260:Female; D005838:Genotype; D006801:Humans; D015810:Linkage Disequilibrium; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000235:genetics* / Q000401:mortality; D008297:Male; D008875:Middle Aged; D010984:Platinum / Q000627:therapeutic use*; D011110:Polymorphism, Genetic; D012333:RNA, Messenger / Q000378:metabolism; D013997:Time Factors; D016896:Treatment Outcome
D000970:Antineoplastic Agents; D003062:Codon; D004268:DNA-Binding Proteins; D012333:RNA, Messenger; D010984:Platinum; C071447:ERCC1 protein, human; D004720:Endonucleases