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Related Concept Videos

Liver Regeneration01:24

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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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Mesenchymal stem cells (MSCs) are adult stem cells that can differentiate into most connective tissue cell types, except for hematopoietic cells, depending upon the source of MSCs. For example, bone-marrow-derived MSCs (BM-MSCs) can differentiate into osteocytes, hepatocytes, and pancreatic and neuronal cells. MSCs can be isolated from various sources such as bone marrow, placenta, adipose tissue, teeth, and Wharton’s jelly, a gelatinous substance in the umbilical cord. The ease of their...
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The hematopoietic stem cells or HSCs are multipotent, meaning they can differentiate and give rise to all blood and immune cells. HSCs are maintained in the quiescent stage until an external stimulus initiates their differentiation. The multipotent HSCs exist as two heterogeneous populations, long-term repopulating cells (LTRC) and short-term repopulating cells (STRC). The two HSC populations have different surface markers or receptors and are classified based on quiescence and long-term...
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All blood and immune cells are produced from the multipotent hematopoietic stem cells (HSCs) by the process of hematopoiesis. However, they all have a limited life span. In addition, many are depleted in immune surveillance or combatting an injury or infection. This makes blood one of the most regenerative tissues. Hematopoiesis helps replenish these blood and immune cells, restoring the body's normal functioning. However, overproduction of blood and immune cells can make them cancerous or...
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Related Experiment Video

Updated: Jun 3, 2025

Isolation of CD133+ Liver Stem Cells for Clonal Expansion
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Human Liver MSCs Retain Their Basic Cellular Properties in Chronically Inflamed Liver Tissue.

Yan S Kim1, Alexey Yu Lupatov1, Veronika V Burunova1

  • 1Laboratory of Cell Biology, V.N. Orekhovich Institute of Biomedical Chemistry, 119121 Moscow, Russia.

International Journal of Molecular Sciences
|January 8, 2025
PubMed
Summary
This summary is machine-generated.

Resident mesenchymal stem cells (MSCs) from inflamed livers maintain properties similar to those from healthy livers. This finding supports the use of MSCs in developing cell therapies for liver diseases.

Keywords:
cell phenotypecell therapycellular senescencecirrhosisfibrosisliver mesenchymal stem cellmigrationproliferationsecretome

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Area of Science:

  • Hepatology and Regenerative Medicine
  • Stem Cell Biology

Background:

  • Liver diseases cause significant global mortality, necessitating advanced therapies.
  • Mesenchymal stem cells (MSCs) are crucial for liver health and post-transplant recovery.
  • The impact of chronic inflammation on liver-resident MSC properties is not well understood.

Purpose of the Study:

  • To compare the fundamental cellular characteristics of resident mesenchymal stem cells (MSCs) from healthy versus chronically inflamed human livers.
  • To determine if chronic liver inflammation alters MSC properties relevant to cell therapy.

Main Methods:

  • Comprehensive analysis of resident MSCs isolated from normal and diseased liver tissues (fibrosis, cirrhosis, viral hepatitis).
  • Evaluation included MSC marker expression, stem cell markers, adhesion molecules, senescence, proliferation, migration, and secretome analysis.
  • Specific assessment of immune checkpoints and toll-like receptor expression.

Main Results:

  • Chronic inflammation did not alter major MSC characteristics, including key markers, senescence, proliferation, migration, and secretome.
  • Only the expression of certain immune checkpoints and toll-like receptors showed differences.
  • Resident MSCs retain consistent cellular properties even in advanced stages of liver inflammatory diseases.

Conclusions:

  • Human liver-resident mesenchymal stem cells (MSCs) exhibit stable cellular properties irrespective of chronic inflammatory conditions.
  • These MSCs, even from diseased livers, are viable candidates for cell-based therapies for liver pathologies.
  • The study validates the potential of resident MSCs for developing novel liver disease treatments.