To know more :
https://dev.biologists.org/content/146/14/e1406?iss=14
In its last study, published in Development (Azami et al., ), the team "Molecular mechanisms of cell lineage differentiation in the early mouse embryo" identified the phosporylation of ERK as a key event in the specification of epiblast (Epi) and Primitive Endoderm (PrE).