Aberrant DNA methylation of the p16INK4a gene in plasma DNA of breast cancer patients

被引:107
|
作者
Silva, JM [1 ]
Dominguez, G [1 ]
Villanueva, MJ [1 ]
Gonzalez, R [1 ]
Garcia, JM [1 ]
Corbacho, C [1 ]
Provencio, M [1 ]
España, P [1 ]
Bonilla, F [1 ]
机构
[1] Clin Puerta de Hierro, Dept Med Oncol, Madrid 28035, Spain
关键词
p16(INK4a) gene; DNA methylation; breast cancer; plasma DNA; CpG islands;
D O I
10.1038/sj.bjc.6690495
中图分类号
R73 [肿瘤学];
学科分类号
100214 ;
摘要
Hypermethylation of exon 1 of p16(INK4a) was examined in tumour and plasma DNA of a series of breast cancer patients. De novo methylation was observed in the tumours of eight patients (23%), and in plasma DNA in five (14%) of these eight patients. Our data show that de novo methylation of exon 1 of p16(INK4a) can be demonstrated in plasma DNA of breast cancer patients, a fact that provides additional evidence of the tumour-related origin of free plasma DNA in cancer patients.
引用
收藏
页码:1262 / 1264
页数:3
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