A rat kidney that works: Mass. General scientists make progress toward bioengineered organs

Housed in an incubator, a rat kidney stripped of its cells is being prepared to be reseeded with new cells.

http://www.boston.com/news/science/blogs/science-in-mind/2013/04/14/rat-kidney-that-works-mass-general-scientists-make-progress-toward-bioengineered-organs/l0zzrmdhJiPFOTlIUQMt8N/blog.html