MIT engineers have developed injectable “satellite livers” made from liver cells and hydrogel microspheres. In animal tests, these mini tissue grafts survived for weeks and produced essential proteins. The innovation could eventually offer an alternative or temporary support for patients waiting for liver transplants.

Scientists have developed tiny engineered “satellite livers” that can be injected into the body to support liver function. The experimental technology could one day help patients with liver failure who cannot get a transplant.

: Injected liver cells stayed viable and functional for eight weeks in mice