乳腺癌是一种严重危害妇女健康的恶性肿瘤,全球每年约有120万妇女患乳腺癌。在发达国家及我国的一些大型工业化城市乳腺癌的发病率已居妇女常见恶性肿瘤的第一位。对乳腺癌进行试验研究需要建立便于体内研究的乳癌动物模型和体外研究的乳癌细胞系。乳癌细胞系的建立是研究癌变机理 Breast cancer is a malignant tumor that seriously affects the health of women. About 1.2 million women worldwide suffer from breast cancer each year. The incidence of breast cancer in some industrialized cities in developed countries and China has ranked first in women’s common malignant tumors. Experimental studies on breast cancer require the establishment of breast cancer animal models and in vitro studies of breast cancer cell lines that facilitate in vivo studies. The establishment of breast cancer cell lines is to study the mechanism of canceration