Aberrant epigenetic regulation of bromodomain Brd4 in human colon cancer

被引:52
作者
Rodriguez, R. M. [1 ]
Huidobro, C. [1 ]
Urdinguio, R. G. [1 ]
Mangas, C. [1 ]
Soldevilla, B. [2 ]
Dominguez, G. [2 ]
Bonilla, F. [2 ]
Fernandez, A. F. [1 ]
Fraga, M. F. [1 ,3 ]
机构
[1] Univ Oviedo, Canc Epigenet Lab, HUCA, IUOPA, Oviedo, Spain
[2] Univ Autonoma Madrid, Hosp Univ Puerta de Hierro, Dept Med Oncol, Madrid, Spain
[3] Ctr Nacl Biotecnol CNB CSIC, Dept Immunol & Oncol, Madrid, Spain
来源
JOURNAL OF MOLECULAR MEDICINE-JMM | 2012年 / 90卷 / 05期
关键词
Colon cancer; DNA methylation; BRD4; Tumor suppressor gene; PROTEIN BRD4; ACETYLATED CHROMATIN; S-PHASE; PROGRESSION; EXPRESSION; CARCINOMA;
D O I
10.1007/s00109-011-0837-0
中图分类号
Q3 [遗传学];
学科分类号
071007 ; 090102 ;
摘要
The bromodomain protein BRD4 is involved in cell proliferation and cell cycle progression, primarily through its role in acetylated chromatin-dependent regulation of transcription at targeted loci. Here, we show that BRD4 is frequently downregulated by aberrant promoter hypermethylation in human colon cancer cell lines and primary tumors. Ectopic re-expression of BRD4 in these colon cancer cell lines markedly reduced in vivo tumor growth, suggesting a role of BRD4 in human colon cancer.
引用
收藏
页码:587 / 595
页数:9
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