US scientists moved closer to growing human organs in laboratory after they identified a key trigger to turn embryonic stem cells into endoderm, a layer of cells in human embryos that eventually develops into organs.

Biotech company CyThera scientific director Emmanuel Baetge said “If you were to use human embryonic stem cells to make products that treat disease such as diabetes or liver failure, you would have to go through the endoderm stage to get (them).” - link [,33669.asp]

It proves that embryonic stem cells can be manipulated to give rise to endoderm.