DNA methylation in early development

DNA methylation in early mammalian development

DNA Methylation and Its Role in the Development of Leukemia

Epigenetic changes play an essential role in cancer pathogenesis. It has been established by next-generation sequencing that more than 50% of the human cancers carry mutations in mechanisms involved in the organization of the chromatin and epigenetic regulations. DNA methylation is among the most common epigenetic changes in leukemia. In contrast to DNA mutations which are passively inherited f...

Maternal DNA Methylation Regulates Early Trophoblast Development

Critical roles for DNA methylation in embryonic development are well established, but less is known about its roles during trophoblast development, the extraembryonic lineage that gives rise to the placenta. We dissected the role of DNA methylation in trophoblast development by performing mRNA and DNA methylation profiling of Dnmt3a/3b mutants. We find that oocyte-derived methylation plays a ma...

DNA Methylation in Development

Variant Histone H2afv reprograms DNA methylation during early zebrafish development

The DNA methylome is re-patterned during discrete phases of vertebrate development. In zebrafish, there are 2 waves of global DNA demethylation and re-methylation: the first occurs before gastrulation when the parental methylome is changed to the zygotic pattern and the second occurs after formation of the embryonic body axis, during organ specification. The occupancy of the histone variant H2A...