Lineage specific distribution of high levels of genomic 5-hydroxymethylcytosine in mammalian development
|演題||Lineage specific distribution of high levels of genomic 5-hydroxymethylcytosine in mammalian development|
|講演者||Dr. Alexey Ruzov (Lecture, Stem Cell Biology at STEM Centre, University of Notingham, UK)|
Methylation of cytosine is a DNA modification associated with gene repression. Recently, a novel cytosine modification, 5-hydroxymethylcytosine (5-hmC) has been discovered. Here we examine 5-hmC distribution in cellular systems and during development and show that unlike 5-methylcytosine the presence of immunochemically detectable levels of 5-hmC in nuclei is lineage specific. 5-hmC correlates with a pluripotent cell state in cellular systems, The developmental dynamics of 5-hmC are different from those of 5-mC; in particular 5-hmC is enriched in embryonic contexts comparing to adult tissues. Our findings suggest that apart from the cells of neuronal lineages high levels of 5-hmC are an epigenetic feature of cellular pluri- and multi-lineage potency.
松田 永照 (email@example.com)