Differentiation of Embryonic Stem Cells Into Hepatocytes: Biological Functions and Therapeutic Application

TLDR

Embryonic stem (ES) cells provide a unique source for tissue regeneration. The study examined whether mouse ES cells can efficiently differentiate into transplantable hepatocytes. ES cells were implanted into mouse livers 24 hours after carbon tetrachloride intoxication, generating ES‑derived cells expressing multiple hepatocyte markers. ES‑derived hepatocyte‑like cells proliferated in vitro, expressed mature hepatocyte markers, integrated into injured mouse livers, rescued hepatic function, and did not form teratomas, demonstrating their therapeutic potential.

Abstract

Embryonic stem (ES) cells provide a unique source for tissue regeneration. We examined whether mouse ES cells can efficiently differentiate into transplantable hepatocytes. ES cells were implanted into mouse livers 24 hours after carbon tetrachloride intoxication; ES-derived cells with several hepatocyte-cell-markers were generated. They were able to grow in vitro and showed morphology consistent with typical mature hepatocytes and expressed hepatocyte-specific genes. After transplantation into the carbon tetrachloride-injured mouse liver, ES-derived green fluorescent protein-positive cells were incorporated into liver tissue and rescued mice from hepatic injury. No teratoma formation was observed in the transplant recipients. In conclusion, ES cells can provide a valuable tool for studying the molecular basis for differentiation of hepatocytes and form the basis for cell therapies.