Alan I. Leshner

Nota: Este archivo abarca los artículos publicados por el autor desde el 1 de diciembre de 2007. Para fechas anteriores realice una búsqueda entrecomillando su nombre.

A new way to trick skin cells into acting like embryos changes both everything and nothing at all. Being able to reprogram skin cells into multipurpose stem cells without harming embryos launches an exciting new line of research. It's important to remember, though, that we're at square one, uncertain at this early stage whether souped-up skin cells hold the same promise as their embryonic cousins do.

Far from vindicating the current U.S. policy of withholding federal funds from many of those working to develop potentially lifesaving embryonic stem cells, recent papers in the journals Science and Cell described a breakthrough achieved despite political restrictions.…  Seguir leyendo »