乳腺癌建模是一种用于研究和模拟乳腺癌发生、发展和治疗的实验方法。常用的乳腺癌模型包括细胞系、小鼠移植瘤模型、转基因小鼠模型等。细胞系可用于体外实验，移植瘤模型通过将乳腺癌细胞移植到小鼠体内，模拟肿瘤发展。转基因小鼠模型则通过操纵关键基因模拟人类乳腺癌。这些模型有助于揭示乳腺癌生物学、筛选药物和开发个体化治疗方案。

Breast cancer modeling is an experimental approach used to study and simulate the development, progression, and treatment of breast cancer. Commonly used breast cancer models include cell lines, mouse transplanted tumor models, transgenic mouse models, etc. Cell lines are available for in vitro experiments, and xenograft tumor models simulate tumor development by transplanting breast cancer cells into mice. Transgenic mouse models mimic human breast cancer by manipulating key genes. These models help reveal breast cancer biology, screen drugs, and develop personalized treatment options.