摘要
目的 研究白血病细胞WT1启动子区DNA甲基化与其表达的关系。方法 采用RT PCR技术、硫化PCR结合限制性内切酶技术检测白血病细胞系及正常人外周血单个核细胞WT1基因的表达及其启动子区DNA甲基化水平。结果 正常人外周血单个核细胞及U937细胞不表达WT1基因 ,而HL 6 0、K5 6 2和KG1细胞高表达WT1基因 ,HL 6 0细胞WT1基因无甲基化。结论 WT1基因启动子区DNA甲基化不能抑制其表达 ,尚存在其他调节WT1基因表达的因素。
Objective To analyse the WT1 expression and its DNA methylation status of its promoter domain. Method The expression of WT1 gene and its DNA methylation status were assayed in leukemia cell lines and normal peripheral blood mononuclear cells (PBMNC) by RT-PCR and MS-PCR. Results WT1 was overexpressed in HL60, K562 and KG1 leukemia cell lines, but not in U937 and PBMNC. Methylation of WT1 promoter was not observed in HL60 cells. Conclusion DNA methylation of WT1 gene promotor did not inhibit its expression. Other mechanisms may appear to regulate the WT1 expression.
出处
《中华血液学杂志》
CAS
CSCD
北大核心
2003年第10期527-529,共3页
Chinese Journal of Hematology