02423nas a2200433   4500008004100000022001400041245008500055210006900140260001500209300001400224490000700238520117700245653001501422653001601437653003101453100002001484700002201504700001901526700001901545700001701564700002201581700001901603700002601622700001801648700002301666700002201689700002101711700002001732700001801752700002001770700003001790700002301820700002501843700002001868700002001888700001301908700002001921856004801941       2014                        eng d  a1538-744500aA Comprehensive DNA Methylation Profile of Epithelial-to-Mesenchymal Transition.0 aComprehensive DNA Methylation Profile of EpithelialtoMesenchymal  c2014 Aug 8  a5608–190 v743 aEpithelial-to-mesenchymal transition (EMT) is a plastic process in which fully differentiated epithelial cells are converted into poorly differentiated, migratory and invasive mesenchymal cells and it has been related to the metastasis potential of tumors. This is a reversible process and cells can also eventually undergo mesenchymal-to-epithelial transition (MET). The existence of a dynamic EMT process suggests the involvement of epigenetic shifts in the phenotype. Herein, we obtained the DNA methylomes at single-base resolution of MDCK cells undergoing epithelial-to-mesenchymal transition (EMT) and translated the identified differentially methylated regions (DMRs) to human breast cancer cells undergoing a gain of migratory and invasive capabilities associated with the EMT phenotype. We noticed dynamic and reversible changes of DNA methylation, both on promoter sequences and gene-bodies in association with transcription regulation of EMT-related genes. Most importantly, the identified DNA methylation markers of EMT were present in primary mammary tumors in association with the epithelial or the mesenchymal phenotype of the studied breast cancer samples.10aMethyl-Seq10aMethylomics10aNext Generation Sequencing1 aCarmona, Javier1 aDavalos, Veronica1 aVidal, Enrique1 aGomez, Antonio1 aHeyn, Holger1 aHashimoto, Yutaka1 aVizoso, Miguel1 aMartinez-Cardus, Anna1 aSayols, Sergi1 aFerreira, Humberto1 aSanchez-Mut, Jose1 aMoran, Sebastian1 aMargeli, Mireia1 aCastella, Eva1 aBerdasco, Maria1 aStefansson, Olafur, Andri1 aEyfjord, Jorunn, E1 aGonzalez-Suarez, Eva1 aDopazo, Joaquin1 aOrozco, Modesto1 aGut, Ivo1 aEsteller, Manel  uhttp://www.ncbi.nlm.nih.gov/pubmed/25106427