%0 Journal Article %A Crujeiras, Ana B %A Diaz-Lagares, Angel %A Stefansson, Olafur A %A Macias-Gonzalez, Manuel %A Sandoval, Juan %A Cueva, Juan %A Lopez-Lopez, Rafael %A Moran, Sebastian %A Jonasson, Jon G %A Tryggvadottir, Laufey %A Olafsdottir, Elinborg %A Tinahones, Francisco J %A Carreira, Marcos C %A Casanueva, Felipe F %A Esteller, Manel %T Obesity and menopause modify the epigenomic profile of breast cancer. %D 2017 %U https://hdl.handle.net/10668/26289 %X Obesity is a high risk factor for breast cancer. This relationship could be marked by a specific methylome. The current work was aimed to explore the impact of obesity and menopausal status on variation in breast cancer methylomes. Data from Infinium 450K array-based methylomes of 64 breast tumors were coupled with information on BMI and menopausal status. Additionally, DNA methylation results were validated in 18 non-tumor and 81 tumor breast samples. Breast tumors arising in either pre- or postmenopausal women stratified by BMI or menopausal status alone were not associated with a specific DNA methylation pattern. Intriguingly, the DNA methylation pattern identified in association with the high-risk group (postmenopausal women with high BMI (>25) and premenopausal women with normal or low BMI 25) and premenopausal women with normal or low BMI  %K 450k methylation array %K DNA methylation %K breast cancer %K epigenomics %K obesity %~