血液的疑固系统和纤溶系统是一个整体中不可分的两个部分,若失去平衡,就可能使机体出现异常。纤溶系统不仅有维持血液流体状态和保持腺体导管畅通等重要的生理功能,而且是许多疾病发生发展的重要因素。近来对纤维蛋白溶酶原的激活酶(PA)研究较多。它不仅是维持正常生理功能所必要的,而且与许多疾病密切相关,如心血管病、糖尿病等,尤其与肿瘤细胞的增殖、浸润、转移等关系密切。PA使纤维蛋白溶酶 The suspicious system and the fibrinolytic system of blood are inseparable parts of a whole. If the balance is lost, the body may become abnormal. The fibrinolytic system not only has important physiological functions such as maintaining the blood fluid state and keeping the ducts of the gland open, but also is an important factor in the development of many diseases. Recently, more studies have been conducted on plasminogen activation enzyme (PA). It is not only necessary to maintain normal physiological functions, but also closely related to many diseases, such as cardiovascular diseases, diabetes, etc., especially closely related to the proliferation, invasion and metastasis of tumor cells. PA makes plasmin