Recombinant plasmid pshRNA- dnmt1 was transfected into human gastric cancer cell lines AGS to analyze inhibition of gene dnmt1 expression.

• 转染胃癌细胞株 AGS,用 RT-PCR 法和 Western Blot 法分别检测其对 dnmt1 基因 mRNA 转录水平和蛋白表达水平的影响。