By Giacomo Frati, Università di Roma La Sapienza
In Greek mythology, Prometheus stole fire from Zeus and gave it to mankind. As punishment, Zeus had him chained to a rock where a great vulture tore at his liver every day. During the night, the liver grew whole again, only to have the vulture devour it again the next day.
Today, the regrowth of Prometheus’ liver has become a symbol to medical researchers for the possible renewal of damaged human organs through the use of human stem cells.