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Prognostic significance of epidermal growth factor receptor expression in glioma patients

Authors Li JH, Liang RF, Song C, Xiang YF, Liu YH

Received 25 October 2017

Accepted for publication 27 December 2017

Published 7 February 2018 Volume 2018:11 Pages 731—742


Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Prof. Dr. Geoffrey Pietersz

Junhong Li,* Ruofei Liang,* Chen Song, Yufan Xiang, Yanhui Liu

Department of Neurosurgery, West China Hospital of Sichuan University, Chengdu, Sichuan Province, People’s Republic of China

*These authors contributed equally to this work

Purpose: There is a great controversy regarding the prognostic significance of epidermal growth factor receptor (EGFR) in glioma patients. The current meta-analysis was conducted to evaluate the effect of abnormal EGFR expression on overall survival in glioma patients.
Materials and methods: A comprehensive literature search of PubMed, EMBASE, Google Scholar, Web of Science, and Cochrane Library was conducted. The combined hazard ratio (HR) and its 95% confidence intervals (CIs) were used to evaluate the association between EGFR expression and survival in glioma.
Results: A total of 476 articles were screened, and 17 articles containing 1,458 patients were selected. The quality assessment of the included studies was performed by the Newcastle–Ottawa Scale. Overexpression of EGFR was found to be an indicator of poor prognosis in overall survival in glioma patients (HR =1.72, 95% CI 1.32–2.25, P=0.000, random effect) and glioblastoma multiforme patients (HR =1.57, 95% CI 1.15–2.14, P=0.004, random effect). Subgroup analysis was conducted to explore the source of high heterogeneity.
Conclusion: This meta-analysis indicated that high expression of EGFR may serve as a biomarker for poor prognosis in glioma patients.

Keywords: epidermal growth factor receptor, glioma, meta-analysis, prognosis

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