This study explored the function and relationship of MMP-2 and TIMP-2 in the invasion and metastasis of OS. the expression of MMP-2 and TIMP-2 in OS specimens and pathological results were compared.

• [摘要] 目的 研究骨肉瘤术后标本中MMP-2、TIMP-2的表达，结合临床病理资料，探讨二者在骨肉瘤侵袭转移过程中的作用和相互关系。