Research Highlights

That the depletion of stem cells as we age may be a consequence of DNA damage has been hinted at. New studies now show that DNA repair is needed to keep our blood stem cells in good working order as we age.

Variation contributes to embryo loss.

Sox2, a protein known to be necessary to keep embryonic stem cells from differentiating, does so by an unexpected mechanism.

A clinically approved kinase inhibitor can stop human ES cells from clumping, and should make them easier to grow.