Demethylating agent 5-aza-2′-deoxycytidine activates HLA-G expression in human leukemia cell lines

被引:25
|
作者
Polakova, K. [2 ]
Bandzuchova, E. [3 ]
Kuba, D. [3 ]
Russ, G. [1 ]
机构
[1] Slovak Acad Sci, Inst Virol, Bratislava 84505, Slovakia
[2] Slovak Acad Sci, Canc Res Inst, Bratislava 84505, Slovakia
[3] Slovak Med Univ, Bratislava, Slovakia
关键词
HLA-G; Leukemia cells; Demethylation; 5-Aza-2 '-deoxycytidine; CHRONIC LYMPHOCYTIC-LEUKEMIA; TUMOR-CELLS; G GENE; PROMOTER REGION; CANCER; DNA; DECITABINE; INHIBITORS; PROTEINS;
D O I
10.1016/j.leukres.2008.08.003
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
HLA-G is a non-classical HLA class I antigen primarily expressed in the extravillous cytotrophoblast. HLA-G can also be expressed at some pathological circumstances and may thus contribute to inhibition of efficient immune responses. Complex regulation of HLA-G expression also involves epigenetic mechanisms as DNA methylation. Here we demonstrate that treatment with demethylating agent 5-aza-2'-deoxycytidine (AdC) resulted in HLA-G transcription in 18 out of 20 examined leukemia cell lines. FILA-G protein synthesis was detected in 10 cell lines expressing significant level of HLA-G transcripts following AdC treatment. (C) 2008 Elsevier Ltd. All rights reserved
引用
收藏
页码:518 / 524
页数:7
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