肿瘤的侵袭和转移是个多步骤的复杂过程 ,但是首先肿瘤细胞必须具备降解细胞外基质 (ｅｘｔｒａｃｅｌｌｍａｔｒｉｘ ,ＥＣＭ )和基底膜的能力。这一过程中基质金属蛋白酶 (ｍａｔｒｉｘｍｅｔａｌｌｏｐｒｏｔｅｎａｓｅｓ,ＭＭＰｓ)必不可少 ,它几乎能降解细胞外基质所有成 Tumor invasion and metastasis are multi-step complex processes, but first the tumor cells must have the ability to degrade the extracellular matrix (ECM) and the basement membrane. In this process, matrix metalloproteinases (MMPs) are essential and can almost degrade all extracellular matrix