A novel lncRNA (Ephemeron) is connected to known post-transcriptional and epigenetic regulators as part of an integrated machinery, which controls the timely exit from the naïve state of mouse embryonic stem cells.
Genetic manipulations show that endogenous transcription factors of the SoxB1 class act redundantly to maintain primed pluripotency and reveal differential effects on transitions between pluripotent and differentiation states.
Neural crest cells differentiated from patient-derived cells with mutations in the chromatin remodeler CHD7 show defective delamination, migration and motility in vitro, and defective migration in chick embryos.
A previously unrecognized transcriptional coactivator function of the dyskerin ribonucleoprotein complex and its associated small nucleolar RNA has been uncovered and mediates embryonic stem cell-specific transcription.
The requirement for WNT signaling in mesendoderm differentiation is temporally separate from that of ACTIVIN signaling and acts to switch the output of ACTIVIN/SMAD2 from pluripotency maintenance to mesendoderm patterning.