Now, researchers say they've discovered a novel mechanism that marks the identities of different kinds of cells in the human body — and prevents them from transforming into another type altogether. (sciencemag.org)
Stem cells are renowned for their regenerative capacity, able to grow into many different kinds of cells in the body. (discovermagazine.com)
They grew other kinds of cells in the medium, such as human skin cells, but these induced no such attraction in the worms. (newscientist.com)