'Spare parts' for human

A segment of human intestine has been grown in laboratory mice for the first time as part of research that could one day produce transplant "spare parts" for repairing diseased tissues and organs using a patient's own skin cells. The miniature intestine grew from a single stem cell to the size of a fingertip and was able to carry out many of the functions associated with digesting and absorbing food, scientists said.

http://www.thedailystar.net/spare-parts-for-human-46700