“A person has received an experimental treatment for the first time that, if successful, will lead them to grow an additional ‘miniature liver’. The procedure, developed by the biotechnology firm LyGenesis, marks the beginning of a clinical trial designed for people whose livers are failing, but who have not received an organ transplant.

The approach is unusual: researchers injected healthy liver cells from a donor into a lymph node in the upper abdomen of the person with liver failure. The idea is that in several months, the cells will multiply and take over the lymph node to form a structure that can perform the blood-filtering duties of the person’s failing liver.”

From Nature.