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EGFR mutations as a prognostic and predictive marker in non-small-cell lung cancer

Authors Fang S, Wang Z

Received 19 June 2014

Accepted for publication 17 July 2014

Published 26 September 2014 Volume 2014:8 Pages 1595—1611

DOI https://doi.org/10.2147/DDDT.S69690

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 5

Shu Fang,1 Zhehai Wang2

1School of Medicine and Life Sciences, University of Jinan-Shandong Academy of Medical Sciences, Shandong Cancer Hospital, Jinan, Shandong Province, People’s Republic of China; 2Department of Oncology, Shandong Cancer Hospital, Jinan, Shandong Province, People’s Republic of China

Abstract: Non-small-cell lung cancer (NSCLC) has entered the age of individual treatment, and increasing point mutations of specific oncogenes and rearrangement of some chromosomes are biomarkers used to predict the therapeutic effect of targeted therapy. At present, there is a consensus among clinicians that epidermal growth factor receptor (EGFR) tyrosine kinase inhibitors (TKIs) have shown favorable efficacy in NSCLC patients with EGFR mutation, and some relevant research has suggested that the presence of EGFR mutations is a favorable prognostic marker. However, the association of EGFR mutation status with the responsiveness to conventional chemotherapy agents and survival in NSCLC patients is still unclear. This review provides an overview of and assesses the role of EGFR as a prognostic marker for postoperative patients and as a predictive marker for response to cytotoxic chemotherapy. In addition, we review the comparison of response to chemotherapy between EGFR mutations in exon 19 and in exon 21 and the predictive role of p.T790M mutation.

Keywords: epidermal growth factor receptor, prediction, prognosis

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