DNA synthesis and repair genes RRM1 and ERCC1 in lung cancer - PubMed (original) (raw)
. 2007 Feb 22;356(8):800-8.
doi: 10.1056/NEJMoa065411.
Affiliations
- PMID: 17314339
- DOI: 10.1056/NEJMoa065411
Free article
DNA synthesis and repair genes RRM1 and ERCC1 in lung cancer
Zhong Zheng et al. N Engl J Med. 2007.
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Abstract
Background: RRM1, the regulatory subunit of ribonucleotide reductase, is involved in carcinogenesis, tumor progression, and the response of non-small-cell lung cancer to treatment.
Methods: We developed an automated quantitative determination of the RRM1 protein in routinely processed histologic specimens. In these specimens, we measured the expression of RRM1 and two other proteins that are relevant to non-small-cell lung cancer: the excision repair cross-complementation group 1 (ERCC1) protein and the phosphatase and tensin homologue (PTEN). We compared the results with the clinical outcomes in 187 patients with early-stage non-small-cell lung cancer who had received only surgical treatment.
Results: RRM1 expression correlated with the expression of ERCC1 (P<0.001) but not with the expression of PTEN (P=0.37). The median disease-free survival exceeded 120 months in the group of patients with tumors that had high expression of RRM1 and was 54.5 months in the group with low expression of RRM1 (hazard ratio for disease progression or death in the high-expression group, 0.46; P=0.004). The overall survival was more than 120 months for patients with tumors with high expression of RRM1 and 60.2 months for those with low expression of RRM1 (hazard ratio for death, 0.61; P=0.02). Among these 187 patients, the survival advantage was limited to the 30% of patients with tumors that had a high expression of both RRM1 and ERCC1.
Conclusions: RRM1 and ERCC1 are determinants of survival after surgical treatment of early-stage, non-small-cell lung cancer.
Copyright 2007 Massachusetts Medical Society.
Comment in
- DNA repair and survival in lung cancer--the two faces of Janus.
Gazdar AF. Gazdar AF. N Engl J Med. 2007 Feb 22;356(8):771-3. doi: 10.1056/NEJMp068308. N Engl J Med. 2007. PMID: 17314336 No abstract available. - ERCC1 and non-small-cell lung cancer.
Niedernhofer LJ, Bhagwat N, Wood RD. Niedernhofer LJ, et al. N Engl J Med. 2007 Jun 14;356(24):2538-40; author reply 2540-1. doi: 10.1056/NEJMc070742. N Engl J Med. 2007. PMID: 17568038 No abstract available. - ERCC1 and non-small-cell lung cancer.
Panasci L, Cohen V. Panasci L, et al. N Engl J Med. 2007 Jun 14;356(24):2540; author reply 2540-1. N Engl J Med. 2007. PMID: 17575589 No abstract available. - ERCC1 and non-small-cell lung cancer.
Zhou SF. Zhou SF. N Engl J Med. 2007 Jun 14;356(24):2540; author reply 2540-1. N Engl J Med. 2007. PMID: 17575590 No abstract available. - Should oncologists measure the mRNA and protein expression levels of ERCC1 and RRM1 in non-small-cell lung cancer?
Heist RS, Liu G, Zhou W. Heist RS, et al. Nat Clin Pract Oncol. 2007 Oct;4(10):564-5. doi: 10.1038/ncponc0909. Epub 2007 Jul 31. Nat Clin Pract Oncol. 2007. PMID: 17667918 No abstract available.
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