凋亡即细胞程序性死亡,现在人们已普遍接受了控制细胞凋亡能力的改变与肿瘤的发生、发展关系极为密切的概念。肿瘤生长必需肿瘤血管形成,无血管生成的肿瘤组织可能数月乃至数年不增殖和转移。一旦肿瘤血管开始形成,肿瘤组织便具有了快速增殖和转移的能力。即使肿,苗组织增生的速度不变,血管生成抑制剂可通过提高肿瘤细胞的凋亡比率抑制实验性原发肿瘤的增生和转移。为了确定胃癌组织内血管密度(IMVD)和 Apoptosis is programmed cell death. Nowadays, people have generally accepted the concept that the ability to control apoptosis is closely related to the occurrence and development of tumors. Tumor growth necessitates tumor angiogenesis, and angiogenic tumor tissue may not proliferate and metastasize for months or even years. Once tumor vessels begin to form, the tumor tissue has the ability to rapidly multiply and metastasize. Even if the rate of proliferation of the seedling tissue is constant, angiogenesis inhibitors can suppress the proliferation and metastasis of experimental primary tumors by increasing the rate of apoptosis in tumor cells. In order to determine the intravascular tissue density (IMVD) and