摘要
目的:将人乳腺癌细胞接种于具有正常免疫功能但受抑制状态的小鼠,以期建立乳腺癌小鼠模型。方法:将40只雌性BALB/c随机平均分成4组,按环磷酰胺和强的松用量多少分为对照组、低剂量组、中剂量组、高剂量组。将人乳腺癌细胞接种于小鼠背部,观察小鼠成瘤时间、成瘤率、肿瘤的影像、病理学表现及其重要内脏器官转移情况等。结果:高剂量组成瘤率高,成瘤时间早,且内脏器官转移多,小鼠死亡率高。中剂量组成瘤率较低,成瘤时间较晚,内脏器官转移少,小鼠死亡率低。对照组和低剂量组未见成瘤和小鼠死亡。结论:本实验成功用环磷酰胺联合强的松在免疫正常的小鼠中建立人乳腺癌小鼠移植瘤模型,较好的模仿乳腺癌在免疫正常的机体里的发生、发展过程。
Objective：This study aimed to establish a mouse model of breast cancer by inoculating human breast cancer cells into mice with normal immune function. Methods：Forty female BALB/C mice were randomized into four groups, with 10 mice in each group. The four groups were established according to the dosage of cyclophosphamide and prednisone, namely, the control group, low dose group, medium dose group, and high dose group. The mouse models of breast cancer were established by injecting human breast cancer cells into the fat pad of the right second breast of mice in the groups. Mice in the four groups were observed based on the time of tumorigenesis, rate of tumor formation, tumor imaging and pathological features, and metastasis of vital internal organs. Results：In the high dose group, the time of tumor formation was lower than that of the other groups, but the rate of tumor formation was high. Some visceral metastases occurred in the mice. By contrast, the medium dose group revealed completely opposite results. No death and tumor formation in both the control and low dose groups were reported. Conclusion：A human breast carcinoma model in mice was successfully established. Using this model, the onset and development of breast cancer could be much better imitated in the normal immune system of mice.
出处
《中国肿瘤临床》
CAS
CSCD
北大核心
2014年第10期616-619,共4页
Chinese Journal of Clinical Oncology
基金
广东省科技计划基金项目(编号:2012B010300013)资助~~
关键词
环磷酰胺
强的松
免疫抑制
乳腺癌
小鼠
PET/CT
cyclophosphamide
prednisone
immune suppression
breast neoplasm
animal model
positron emission tomogra-phy-computed tomography
