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Emerging evidence strongly suggests that stem cells and their differentiated progeny display distinct metabolic profiles, but how metabolic changes are coupled with organogenesis has remained unclear. Homem et al. (2014) now reveal a hormone-dependent pathway that couples metabolic changes with stem cell differentiation, thereby terminating neurogenesis in the Drosophila brain.
Genome-wide erasure of DNA methylation takes place in primordial germ cells (PGCs) and early embryos and is linked with pluripotency. Inhibition of Erk1/2 and Gsk3β signaling in mouse embryonic stem cells (ESCs) by small-molecule inhibitors (called 2i) has recently been shown to induce hypomethylation. We show by whole-genome bisulphite sequencing that 2i induces rapid and genome-wide demethylation...
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