Which way is up? Stem cells take cues from localized signals, say Stanford scientists

Stem cells in the laboratory lead a seemingly idyllic life, spending most of their time being gently sloshed around in a warm bath of yummy nutrients.

http://scopeblog.stanford.edu/2013/03/22/which-way-is-up-stem-cells-take-cues-from-localized-signals-say-stanford-scientists/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+stanford%2Fscope+%28SCOPE%29