MMP-7在非小细胞肺癌中的研究进展

摘要

Lung cancer is one of the most common malignant tumors in the world.Non-small lung canc-er( NSCLC) accounts for approximately 85%,but its pathogenesis has not been elucidated.As a family of soluble enzymes,matrix metalloproteinases(MMPs)can degrade the constituents of the extracellular matrix(ECM)and the basement-membrane,members share common structural features and are responsible for the relative specific sub-strates.Some researches show that the matrix metalloproteinases 7(MMP-7)involve in the invasion and metasta-sis of NSCLC,the expression of MMP-7 in the tissue of NSCLC is significcantly higher than that in adjacent tis-sues,and the MMP-7 plays important roles in prognosis evaluation of NSCLC patients.Therefore this paper sum-marize the domain structure,function,regulation and research in NSCLC about MMP-7.%肺癌是当今世界最常见的恶性肿瘤之一,其中约85%为非小细胞肺癌,发病机制至今尚不明确. 基质金属蛋白酶( MMPs)是一组能降解细胞外基质和基底膜的蛋白溶解酶家族,各成员具有相似的结构及一定的底物特异性. 有研究显示基质金属蛋白酶家族中的基质金属蛋白酶7 ( MMP-7 )参与了非小细胞肺癌的浸润和转移,在非小细胞肺癌组织中MMP-7的表达明显高于癌旁组织,且MMP-7对非小细胞肺癌患者的预后评估亦有重要意义. 因此,本文就MMP-7结构、功能、表达的调节等几个方面进行综述.