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大肠癌包括结肠和直肠癌是我国常见的恶性肿瘤之一,其发病率呈上升趋势,现发病率上升为次于肺和胃癌之后第3位。肿瘤的生长方式及预后一直是众多医学科研工作者研究的重点。CD31和Ki-67多用于判断肿瘤的良、恶性及恶性程度,也用于探讨细胞增殖活性、细胞周期与肿瘤生长方式浸润方式、复发、转移等生物行为及预后的关系。1CD31的生物学功能:CD31是分子量为130KD的跨膜
Colorectal cancer including colorectal cancer and colorectal cancer is one of the most common malignant tumors in our country. The incidence of colorectal cancer is on the rise. The morbidity of colorectal cancer rises to the third place after lung and gastric cancer. Tumor growth and prognosis has been the focus of many medical researchers. CD31 and Ki-67 are mostly used to determine the benign, malignant and malignant degree of the tumor, and are also used to investigate the relationship between cell proliferation activity, cell cycle and tumor growth pattern infiltration, recurrence, metastasis and other biological behaviors and prognosis. 1CD31 biological function: CD31 is a molecular weight of 130KD transmembrane