title: Sequential DNA methylation of the Nanog and Oct-4 upstream regions in human NT2 cells during neuronal differentiation.
abstract: Human NT2 cells, which differentiate into neurons and astrocytes, initially express and then permanently down-regulate Nanog and Oct-4 (POU5F1). We investigated the relationship between the expression of these genes and the methylation state of their 5'-flanking regions. Gene expression and DNA methylation were assayed with quantitative polymerase chain reaction and bisulfite genomic sequencing, respectively. Retinoic acid-induced differentiation of NT2 cells to neurons is accompanied by a sequential decrease in the expression of both genes, paralleled by sequential epigenetic modification of their upstream regions. This is the first report demonstrating changes in DNA methylation in the promoter regions of Nanog and Oct-4 in a human cell line.
authors.affiliation: Neurobiology Program, Institute for Biological Sciences, National Research Council of Canada, Ottawa K1A 0R6, Canada. Paromita.Deb-Rinker@nrc.gc.ca
authors.forename: Paromita
authors.initials: P
authors.lastname: Deb-Rinker
authors.forename: Dao
authors.initials: D
authors.lastname: Ly
authors.forename: Anna
authors.initials: A
authors.lastname: Jezierski
authors.forename: Marianna
authors.initials: M
authors.lastname: Sikorska
authors.forename: P Roy
authors.initials: PR
authors.lastname: Walker
mesh_terms: D024506:5' Flanking Region; D002454:Cell Differentiation / Q000187:drug effects / Q000235:genetics*; D002460:Cell Line; D019175:DNA Methylation; D004268:DNA-Binding Proteins / Q000235:genetics*; D015536:Down-Regulation; D018398:Homeodomain Proteins / Q000235:genetics*; D006801:Humans; D000071317:Nanog Homeobox Protein; D009474:Neurons / Q000166:cytology*; D050814:Octamer Transcription Factor-3; D016133:Polymerase Chain Reaction; D011401:Promoter Regions, Genetic; D012045:Regulatory Sequences, Nucleic Acid; D014157:Transcription Factors / Q000235:genetics*; D014212:Tretinoin / Q000494:pharmacology
chemical_list: D004268:DNA-Binding Proteins; D018398:Homeodomain Proteins; C486780:NANOG protein, human; D000071317:Nanog Homeobox Protein; D050814:Octamer Transcription Factor-3; C494173:POU5F1 protein, human; D014157:Transcription Factors; D014212:Tretinoin