Stem Cells Self-Assemble into Functioning, Miniature Livers

Stem cell-derived liver cells, cultured in a Petri dish alongside blood and connective tissue, spontaneously assembled into a human liver bud, closely resembling a five to six week old human liver. This advance, reported in Nature, represents the first time a vascularized, three-dimensional organ has been produced from induced pluripotent stem (iPS) cells. Transplanted into mice, the buds broke down drugs that human, not mouse, livers can process.

Read more in the New York Times >>