Acta Biochimica et Biophysica Sinica Advance Access originally published online on April 8, 2009
Acta Biochimica et Biophysica Sinica 2009 41(5):429-435; doi:10.1093/abbs/gmp027
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XPA A23G polymorphism is associated with the elevated response to platinum-based chemotherapy in advanced non-small cell lung cancer
1 Medical School, Southeast University, Nanjing 210009, China
2 Jiangsu Cancer Hospital, Nanjing 210009, China
3 Zhongda Hospital, Southeast University, Nanjing 210009, China
4 Department of Oncology, The 81th Hospital of PLA, Nanjing 210034, China
5 Laboratory of Molecular and Biomolecular Electronics, Southeast University, Nanjing 210096, China
6 Department of Oncology, Jiangbei People Hospital, Nanjing 210048, China
* Correspondence address. Tel: +86-25-83275408; Fax: +86-25-83272011; E-mail: sunxch505{at}yahoo.com.cn (X.S.); Tel: +86-25-83272006; Fax: +86-25-83272011; cba8888{at}hotmail.com (B.C.)
| Abstract |
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DNA repair capacity (DRC) is correlated with sensitivity of cancer cells toward platinum-based chemotherapy. We hypothesize that genetic polymorphisms in DNA repair gene XPA (xeroderma pigmentosum group A) and XPG (xeroderma pigmentosum group G) (ERCC5, excision repair cross-complementation group 5), which result in inter-individual differences in DNA repair efficiency, may predict clinical response to platinum agents in advanced non-small cell lung cancer (NSCLC) patients. In this study, we find that the A
G change of XPA A23G polymorphism significantly increased response to platinum-based chemotherapy. Polymorphism in XPG His46His was associated with a decreased treatment response, but was not statistically significant.
Keywords single nucleotide polymorphism; gene-chip; XPA; XPG; nucleotide excision repair; non-small cell lung cancer; chemotherapy
Received: December 3, 2008; Accepted: February 27, 2009
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