MMPs及TIMPs在肝纤维化的作用机制及研究进展

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肝纤维化主要由肝脏细胞外基质(EC M )合成、分解间失衡所造起,主要涉及基质蛋白的合成增多、降解减少或二者兼备,是Ⅲ、Ⅳ型胶原或其它细胞外基质增多,破坏肝的组织结构最终损坏肝功能。肝纤维化的过程既是初期 ECM 合成增加,更是后期降解降低的结果。在肝纤维化ECM 合成增多和降解减少的全过程,基质金属蛋白酶(M M Ps )与基质金属蛋白酶组织抑制因子(T IM Ps )二者均有不同程度的表达[1]。
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