FAK—ERK的研究进展及其法医学应用价值

细胞内黏着斑激酶（focal adhesion kinase，FAK）和细胞外信号调节蛋白激酶（extracellular signal—regulated protein kinase，ERK）均是重要的信号转导分子，二者在信号从表面受体转导至细胞核过程中起到关键作用。当受到细胞外刺激时，FAK被激活而发生磷酸化，磷酸化的FAK激活下游的ERK，通过ERK改变细胞行为。这样，FAK-ERK信号传导因子就参与了细胞增殖、分化、应激、凋亡和恶变等多种生物学反应。本文对FAK—ERK的生物学特性以及其在组织损伤中作用的研究进展作一综述，以期为组织损伤时间推断的法医学研究提供更为有效的方法。

Advances in the study on FAK-ERK and its applicable value in forensic medicine

Focal adhesion kinase(FAK)and extracellular signal-regulated protein kinase(ERK),which are thought to play major roles in transducing surface receptor-derived signals into nucleus,are pivotal signal transduction molecules in mammalian cells.FAK is activated through phosphorylation by extracellular stimuli.p-FAK activates the downstream of ERK which changes cell action.FAK-ERK signal conduction factors are involved in a variety of biological responses,such as cell proliferation,differentiation,stress,apoptosis and malignant change.The biologic characters of FAK-ERK and advances in the study on its roles in tissue damage are reviewed in this article,which may provide a more effective way for estimation of wound age in forensic medicine.