METHODS: Human breast cancer cell line MCF 7, human gastric cancer cell line BGC 823, human prostate cancer cell line DU 145, and human colon cancer cell line HT 29 were treated with 5 Aza CdR.

• 方法:用5-Aza-CdR作用人乳腺癌细胞系MCF-7、人胃癌细胞系BGC-823、人的前列腺癌细胞系DU-145和人结肠癌细胞系HT-29。