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Meta-Analysis
. 2014 Jan;35(1):155-60.
doi: 10.1007/s13277-013-1019-1. Epub 2013 Aug 2.

Prognostic significance of VEGF expression in osteosarcoma: a meta-analysis

Xiao-Wei Yu  1 , Tian-Yi Wu, Xiang Yi, Wei-Ping Ren, Zu-bin Zhou, Yu-qiang Sun, Chang-qing Zhang
Affiliations
Meta-Analysis

Prognostic significance of VEGF expression in osteosarcoma: a meta-analysis

Xiao-Wei Yu et al. Tumour Biol. 2014 Jan.

Abstract

Vascular endothelial growth factor (VEGF) is considered as a prime mediator of angiogenesis and has been implicated in carcinogenesis and metastasis. Various studies examined the relationship between VEGF overexpression with the clinical outcome in patients with osteosarcoma but yielded conflicting results. Electronic databases updated to April 2013 were searched to find relevant studies. A meta-analysis was conducted with eligible studies which quantitatively evaluated the relationship between VEGF overexpression and survival of patients with osteosarcoma. Survival data were aggregated and quantitatively analyzed. We performed a meta-analysis of eight studies that evaluated the correlation between VEGF overexpression and survival in patients with osteosarcoma. Combined hazard ratios suggested that VEGF overexpression had an unfavorable impact on overall survival (hazard ratio (HR) = 1.75, 95% confidence interval (CI): 1.21-2.28) in patients with osteosarcoma for overall populations, 2.37 (1.35-3.39) in Asian studies but not in non-Asian studies (HR = 1.51, 95% CI: 0.89-2.14). No significant heterogeneity was observed among all studies. VEGF overexpression indicates a poor prognosis for patients with osteosarcoma. However, the prognostic value of VEGF on survival in osteosarcoma patients still needs further large-scale prospective trials to be clarified.

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