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Updated: Dec 25, 2025
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Generation of Organoids from Mouse Extrahepatic Bile Ducts
Published on: April 23, 2019
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Regional Differences in Human Biliary Tissues and Corresponding In Vitro-Derived Organoids
Casey A Rimland1,2,3,4, Samantha G Tilson1,3,5,6, Carola M Morell1,3
1Wellcome-Medical Research Council Cambridge Stem Cell Institute, University of Cambridge, Cambridge, United Kingdom.
Hepatology (Baltimore, Md.)
|March 31, 2020
Summary
Biliary organoids derived from intrahepatic and extrahepatic bile ducts show distinct characteristics and gene expression profiles. These findings highlight differences between organoids and their origin tissues, aiding cholangiopathy research.
Area of Science:
- * Regenerative Medicine
- * Epithelial Biology
- * Organoid Technology
Background:
- * Organoids offer a powerful in vitro model for studying epithelial tissues.
- * Application of organoid technology to the biliary tree, including extrahepatic bile ducts (EHBDs) and intrahepatic bile ducts (IHBDs), has recently emerged.
- * While sharing cholangiocyte markers like keratin (KRT) 19, the precise relationship between these organoids and their tissue of origin, as well as between IHBD and EHBD organoids, remains largely undefined.
Purpose of the Study:
- * To investigate the relationship between biliary organoids and their tissues of origin.
- * To compare intrahepatic bile duct (IHBD) organoids with extrahepatic bile duct (EHBD) organoids.
- * To explore the potential for therapeutic target identification in cholangiopathies.
Main Methods:
- * Organoids were derived from human gallbladder, common bile duct, pancreatic duct, and IHBDs.
- * Culture conditions promoting WNT signaling were employed.
- * RNA sequencing was utilized to analyze gene expression profiles.
Main Results:
- * Both IHBD and EHBD organoids expressed stem/progenitor markers (leucine-rich repeat-containing G-protein-coupled receptor 5/prominin 1) and ductal markers (KRT19/KRT7).
- * RNA sequencing revealed limited conservation of regional-specific markers and a down-regulation of biliary markers with an up-regulation of cell-cycle genes in organoids.
- * IHBD and EHBD organoids exhibited divergent responses to WNT signaling, with IHBDs showing potential for hepatocyte marker expression.
Conclusions:
- * Significant differences exist between extrahepatic biliary organoids and their tissue of origin.
- * Distinct characteristics were observed between IHBD and EHBD organoids.
- * Findings contribute to understanding the tissue specificity of cholangiopathies and may inform therapeutic development.
