Abstract
Vascular endothelial growth factor (VEGF) plays an important role in the tumor angiogenesis, and its expression has been supposed to be a biomarker of prognosis in patients with osteosarcoma. There are many studies assessing the prognostic role of VEGF expression in osteosarcoma, and no consistent outcomes are reported. To provide a comprehensive assessment of the prognostic role of VEGF expression, we performed a systematic review and meta-analysis of published studies. We assessed the effect of VEGF expression on the overall survival rate and the disease-free survival rate by calculating the pooled odds ratio (OR) with corresponding 95 % confidence interval (95 %CI). Finally, 12 studies with a total of 559 osteosarcoma patients were included into the systematic review and meta-analysis. Compared with osteosarcoma patients with low or negative VEGF expression, patients with high VEGF expression were obviously associated with lower disease-free survival (OR = 0.25, 95 %CI 0.11–0.58, P = 0.001, I 2 = 56.4 %). In addition, patients with high VEGF expression were obviously associated with lower overall survival (OR = 0.22, 95 %CI 0.13–0.35, P < 0.001, I 2 = 0.0 %). Therefore, the findings from this systematic review suggest that VEGF expression is an effective biomarker of prognosis in patients with osteosarcoma.
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Chen, D., Zhang, YJ., Zhu, Kw. et al. A systematic review of vascular endothelial growth factor expression as a biomarker of prognosis in patients with osteosarcoma. Tumor Biol. 34, 1895–1899 (2013). https://doi.org/10.1007/s13277-013-0733-z
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DOI: https://doi.org/10.1007/s13277-013-0733-z