title: DNA methylation and histone modifications: teaming up to silence genes.
abstract: DNA methylation, histone deacetylation, and methylation of histone H3 at lysine 9 are the three best-characterized covalent modifications associated with a repressed chromatin state. Recent advances highlight an essential, intricate web of interactions among these processes, generating a self-reinforcing, self-perpetuating cycle of epigenetic events that lead to long-term transcriptional repression. Histone deacetylation and methylation at lysine 9 of H3 might also contribute to the establishment of DNA methylation patterns, a long-standing mystery in epigenetics. What's more, recent clues suggest a potential link between CpG methylation and other histone modifications. A complex picture is emerging in which DNA methylation and histone modifications work hand-in-hand as parts of an epigenetic program that integrates gene-silencing networks within the cell.
authors.affiliation: Free University of Brussels, Faculty of Medicine, Laboratory of Molecular Virology, 808 route de Lennik, 1070 Brussels, Belgium. ffuks@ulb.ac.be
authors.forename: François
authors.initials: F
authors.lastname: Fuks
mesh_terms: D000818:Animals; D018899:CpG Islands; D019175:DNA Methylation; D020868:Gene Silencing; D006657:Histones / Q000378:metabolism*
chemical_list: D006657:Histones