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Abstract
The prognostic role of EphA2 in human carcinomas remains controversial. We systematically reviewed the evidence of assessment of EphA2 expression in cancers to help clarify this issue. PubMed, Embase and Web of Science databases were searched to identify eligible studies to evaluate the association of EphA2 expression and overall survival (OS) of cancers. Hazard ratios (HRs) were pooled to estimate the effect. EphA2 overexpression was significantly correlated with poor OS of patients with cancer (HR: 1.94, 95% confidence interval [CI]: 1.65–2.28). Subgroup analysis also indicated a significant relation between EphA2 overexpression and OS in gastric cancer (HR: 1.95, 95% CI: 1.48–2.59). However, there was no significant relation between EphA2 overexpression and OS in lung cancer (HR: 1.30, 95% CI: 0.93–1.83). Our analyses demonstrate that EphA2 overexpression was effectively predictive of worse prognosis in various human carcinomas. For certain cancers, EphA2 might be a marker of poor prognosis in patients with cancer, except for lung cancer.