MCF-7/HER-2 c ells and MCF-7 cells were injected into BALB/c nude mice.

• 免疫缺陷裸鼠 (BALB/c)皮下接种乳腺癌 (MCF -7和MCF -7/HER -2 )细胞 ,其中接种MCF -7/HER -2细胞的裸鼠随机分为 3组 :对照组 ;