DNA methyltransferase inhibitor 5-Aza-CdR can induce demethylation in the promoter region of RASSF1A. It can also reverse epigenetic transcriptional silencing caused by methylation and induce the re-expression of RASSF1A in QBC-939.

• DNA甲基转移酶抑制剂5-Aza-CdR能够诱导RASSF1A基因启动子区域去甲基化,并通过该机制诱导RASSF1A基因在人胆管癌细胞系QBC-939中的表达。