UC San Diego
Getting off the ground state: X chromosome inactivation knocks down barriers to differentiation.
- Author(s): Morey, Robert
- Laurent, Louise C
- et al.
Published Web Locationhttps://doi.org/10.1016/j.stem.2014.01.012
Female mouse embryonic stem cells (mESCs) contain two active X chromosomes, with one undergoing random inactivation upon differentiation. Schulz et al. (2014) now demonstrate that the presence of two active X chromosomes in mESCs prevents exit from pluripotency by blocking MAPK signaling, ensuring synchronization between X chromosome dosage compensation and development.