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Related Experiment Video

Updated: Dec 10, 2025

Determining Bile Duct Density in the Mouse Liver
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Development of liver microtissues with functional biliary ductular network.

Ehab O A Hafiz1,2,3, Beyza Bulutoglu1,2, Soheir S Mansy3

  • 1Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.

Biotechnology and Bioengineering
|August 29, 2020
PubMed
Summary

Researchers engineered functional liver tissue with integrated biliary drainage by co-culturing hepatocytes and cholangiocytes. This breakthrough in liver tissue engineering paves the way for creating transplantable liver grafts with bile clearance capabilities.

Keywords:
biliary ductular networkcholangiocyteshepatocytesliver tissue engineeringspheroids

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Area of Science:

  • Hepatology
  • Tissue Engineering
  • Regenerative Medicine

Background:

  • Liver tissue engineering seeks functional grafts to replace donor livers.
  • A key challenge is replicating the biliary drainage system for bile clearance.

Purpose of the Study:

  • To develop a hepatic microtissue with integrated bile canaliculi (BC) and biliary ductular network.
  • To create functional hepatic building blocks for transplantable liver grafts.

Main Methods:

  • Co-culturing rat primary hepatocytes with cholangiocytes and stromal cells to form spheroids.
  • Culturing spheroid clusters to develop higher-order ductular networks.
  • Assessing hepatocyte viability, function, polarization, and BC formation.

Main Results:

  • Hepatocytes maintained viability and function for 7 days within spheroids.
  • Polarized hepatocytes formed bile canaliculi (BC) with tight junctions.
  • Cholangiocytes formed peripheral microcysts and tubular structures, creating functional biliary channels capable of bile transport.

Conclusions:

  • Successfully created hepatic microtissues with integrated biliary drainage.
  • Demonstrated the potential for developing functional hepatic building blocks for liver regeneration.
  • This represents a significant step towards engineering transplantable liver grafts.