目的：研究人骨肉瘤OS 732细胞系促血管生成作用及血管内皮生长因子（VEGF）抗体对其血管生成的抑制作用。

Purpose To study the angiogenesis induced by OS 732 cell line and its inhibition by anti VEGF antibody.

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目的：研究血管内皮生长因子(VEGF)对骨肉瘤血管生成、生长、转移及预后的影响。

Objective: to investigate the role of vascular endothelial growth factor (VEGF) on angiogenesis, tumor growth and metastasis in osteosarcoma, and its clinical significance.

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前言：目的：研究骨肉瘤中血管内皮生长因子受体(VEG FR 2) KDR的表达情况，及其与微血管密度(MVD)关系。

AIM: to explore the expression of vascular endothelial growth factor receptor (VEGFR) KDR and its relation with microvessel density (MVD).

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