In vitro Differentiation of Human TERT-Transfected Multi-Lineage Progenitor Cells (MLPC) into Immortalized...

Area of Science:

• Stem cell biology
• Hepatology
• Drug discovery

Background:

• Primary hepatocytes (PH) present variability and availability issues for in vitro studies.
• Hepatocarcinoma cells are unsuitable for drug metabolism and liver function research.
• Stem cell-derived hepatocytes offer a promising alternative for reliable in vitro models.

Purpose of the Study:

• To develop a reproducible method for generating hepatocyte-like cells from human TERT-immortalized multi-lineage progenitor cells (MLPC).
• To establish an immortalized cell line for consistent in vitro studies in drug development and liver disease research.

Main Methods:

• Utilized a three-step differentiation protocol on E12 MLPC using specific growth factors and cytokines.
• Analyzed cell differentiation via morphology, immunohistochemistry, urea production, and gene expression.
• Developed a method for continuous expansion of the differentiated hepatocyte-like cells.

Main Results:

• Demonstrated significant morphological changes and marker expression (SOX-17, GATA-4, α-fetoprotein, albumin, HNF4) during differentiation.
• Confirmed consistency with primary hepatocytes in gene expression, urea production, and immunohistochemistry.
• Established a methodology for continuous expansion of the derived hepatocyte-like cells.

Conclusions:

• Immortalized hepatocyte-like cell lines provide a consistent platform for hepatic disease study and drug discovery.
• These cells can advance the development of cellular therapies for liver disorders.
• The methodology supports potential bridge therapies for liver failure patients.