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Related Concept Videos

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The liver is an important organ in vertebrates that plays an essential role in metabolism. It is also responsible for storing and redistributing nutrients such as carbohydrates, fats, and vitamins in the body. Additionally, the liver releases bile salts which are critical for digesting food and eliminating toxic metabolites from the body.
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After cellular or tissue damage, the resident stem cells present in the human body can locally repair and regenerate the damaged tissue or organ. However, even though some tissues do not have stem cells, they can repair and regenerate with the help of pre-existing cells. For example, beta cells of the pancreas and hepatocytes of the liver can divide to renew and regenerate the tissue. Here, both cell division and cell death are well regulated by homeostasis.
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Regeneration is the process of restoring injured or lost tissues, organs, or body parts. While simpler organisms generally show greater ability to regenerate their whole body, few complex animals show similarly exceptional regeneration. For example, planarian flatworms have a unique regenerative potential making them a popular study organism among biologists to understand the mechanisms of whole body regeneration. Other organisms, such as hydra, also show extreme regeneration potential;...
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Updated: Dec 25, 2025

Development of an Ethanol-induced Fibrotic Liver Model in Zebrafish to Study Progenitor Cell-mediated Hepatocyte Regeneration
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Cell Plasticity in Liver Regeneration.

Weiping Li1, Lu Li1, Lijian Hui2

  • 1State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Shanghai 200031, China.

Trends in Cell Biology
|March 24, 2020
PubMed
Summary
This summary is machine-generated.

Liver regeneration relies on differentiated cell plasticity, not just progenitor cells. Understanding this cell reprogramming competence offers new therapeutic avenues for liver diseases.

Keywords:
cell plasticityepigenetic regulationliver injuryregeneration

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Area of Science:

  • Hepatology
  • Cell Biology
  • Regenerative Medicine

Background:

  • The liver possesses significant regenerative capabilities.
  • The role of hepatic progenitor cells in liver regeneration after injury is debated.
  • Differentiated cell plasticity is increasingly recognized as a key mechanism in liver repair.

Purpose of the Study:

  • To review cell sources for hepatocyte regeneration.
  • To explore the clinical relevance of cell plasticity in human liver diseases.
  • To provide mechanistic insights into injury-induced cell plasticity in hepatocytes and biliary epithelial cells.

Main Methods:

  • Literature review and synthesis of existing research.
  • Analysis of evidence supporting cell plasticity in liver regeneration.
  • Discussion of proposed mechanisms, including 'reprogramming competence'.

Main Results:

  • Evidence suggests differentiated cell plasticity is a major source for hepatocytes during liver regeneration.
  • Hepatocytes and biliary epithelial cells exhibit injury-induced plasticity.
  • The concept of 'reprogramming competence' is proposed to explain hepatocyte plasticity.

Conclusions:

  • Cellular plasticity is a critical factor in liver regeneration.
  • Further investigation into cell plasticity mechanisms can advance liver disease therapies.
  • Understanding 'reprogramming competence' is key for future research directions.