http://www.scientificamerican.com/article.cfm?id=making-scents-of-sounds-n

Tuesday, March 25, 2008

Regulating Immortality - Stem Cell Control

A new paper this week details the complex regulatory mechanisms that play a part in keeping stem cells so versatile.

And one the the key players? It turns out to be something called a "microRNA" - yes, as we know, RNA does everything, so why shouldn't it also sometimes act as a transcription factor too?

The mechanisms of genetic regulation are only the much more complex the closer you look......

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