Deciduous and permanent dental pulp mesenchymal cells acquire hepatic morphologic and functional features in vitro

Area of Science:

• Stem Cell Biology
• Hepatology
• Regenerative Medicine

Background:

• Mesenchymal stem cells (MSCs) possess multipotent differentiation capabilities.
• The stromal tissue compartment is recognized as a reservoir for stem cells.
• This study investigates the endodermal differentiation potential of MSCs derived from deciduous and wisdom tooth pulp.

Purpose of the Study:

• To assess the hepatic differentiation capacity of dental pulp-derived mesenchymal stem cells.
• To determine if these cells acquire hepatocyte-like characteristics.
• To explore the potential of these cells in regenerative medicine.

Main Methods:

• Isolation and in vitro expansion of dental mesenchymal cells.
• Characterization of cells using established stem cell markers.
• Induction of hepatic differentiation using specific growth factors and supplements (hepatic growth factor, dexamethasone, Insulin-Transferrin-Selenium-X, oncostatin).

Main Results:

• Differentiated cells expressed key hepatic markers: alpha-fetoprotein, albumin, and hepatic nuclear factor 4alpha.
• Clusters of cells positive for insulin-like growth factor 1 were observed.
• Significant increases in urea production and intracellular glycogen storage were detected.

Conclusions:

• Mesenchymal stem cells from wisdom and deciduous tooth pulp successfully differentiated into cells with hepatocyte morphology and function.
• These cells demonstrated the ability to produce specific hepatic proteins and perform liver-specific functions like urea synthesis and glycogen storage.
• Dental pulp-derived MSCs represent a promising source for generating functional hepatocytes.