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Related Concept Videos

Regulation of Hematopoietic Stem Cells01:01

Regulation of Hematopoietic Stem Cells

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...
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
Multipotency of Hematopoietic Stem Cells01:19

Multipotency of Hematopoietic Stem Cells

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...
Mesenchymal Stem Cells01:19

Mesenchymal Stem Cells

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 access...
Stem Cell Culture01:17

Stem Cell Culture

Stem cell research aims to find ways to use stem cells to regenerate and repair cellular damage. Over time, most adult cells undergo the wear and tear of aging and lose their ability to divide and repair themselves. Stem cells do not display a particular morphology or function. Adult stem cells, which exist as a small subset of cells in most tissues, keep dividing and can differentiate into a number of specialized cells generally formed by that tissue. These cells enable the body to renew and...
Stem Cell Niche01:26

Stem Cell Niche

The stem cell niche is the dynamic microenvironment where stem cells reside. Inside these niches, the cells may remain undifferentiated, undergo high self-renewal, or become lineage-specific progenitors. Stem cells coexist with other niche cells, such as stromal cells. They also interact closely with the ECM. Cell-cell and cell-matrix communication occur via adhesion molecules or soluble factors that signal the stem cells and determine their fate. Stromal cells also provide survival signals to...

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Development of Stem Cell-derived Antigen-specific Regulatory T Cells Against Autoimmunity
10:10

Development of Stem Cell-derived Antigen-specific Regulatory T Cells Against Autoimmunity

Published on: November 8, 2016

When stem cells meet immunoregulation.

Roberta Tasso1, Giuseppina Pennesi

  • 1Department of Oncology, Biology, and Genetics, University of Genova, Genova, Italy.

International Immunopharmacology
|June 23, 2009
PubMed
Summary

Mesenchymal stem cells (MSCs) offer a solution to immune rejection in stem cell therapy. These adult stem cells modulate immune responses by generating regulatory T lymphocytes, overcoming challenges with embryonic and other adult stem cells.

Area of Science:

  • Immunology
  • Regenerative Medicine
  • Cell Biology

Background:

  • Clinical applications of stem cells face ethical and biological hurdles, particularly immune rejection.
  • Embryonic stem cells and some adult stem cells risk rejection by the host immune system.
  • Adult stem cells offer ethical advantages but immune compatibility remains a concern.

Purpose of the Study:

  • To review the immunological properties of embryonic and adult stem cells.
  • To highlight the immunomodulatory functions of mesenchymal stem cells (MSCs).
  • To examine MSC interactions with regulatory T lymphocytes.

Main Methods:

  • Literature review focusing on stem cell immunology.
  • Analysis of mechanisms underlying stem cell immune interactions.

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Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes
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Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes

Published on: August 20, 2007

Assessment of the Immunomodulatory Properties of Human Mesenchymal Stem Cells (MSCs)
06:20

Assessment of the Immunomodulatory Properties of Human Mesenchymal Stem Cells (MSCs)

Published on: December 24, 2015

Related Experiment Videos

Last Updated: Jun 22, 2026

Development of Stem Cell-derived Antigen-specific Regulatory T Cells Against Autoimmunity
10:10

Development of Stem Cell-derived Antigen-specific Regulatory T Cells Against Autoimmunity

Published on: November 8, 2016

Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes
16:26

Regulatory T cells: Therapeutic Potential for Treating Transplant Rejection and Type I Diabetes

Published on: August 20, 2007

Assessment of the Immunomodulatory Properties of Human Mesenchymal Stem Cells (MSCs)
06:20

Assessment of the Immunomodulatory Properties of Human Mesenchymal Stem Cells (MSCs)

Published on: December 24, 2015

  • Emphasis on regulatory T lymphocyte generation by MSCs.
  • Main Results:

    • Mesenchymal stem cells (MSCs) possess unique immunomodulatory capabilities.
    • MSCs can differentiate into osteocytes, chondrocytes, and adipocytes.
    • A key mechanism of MSCs is the induction of antigen-specific CD4(+)CD25(+)FoxP3(+) regulatory T lymphocytes.

    Conclusions:

    • Mesenchymal stem cells (MSCs) show promise for overcoming immune rejection in stem cell therapies.
    • The immunomodulatory function of MSCs, particularly their interaction with regulatory T lymphocytes, is crucial for clinical translation.
    • Further research into MSC immunology can advance tissue repair and organ reconstruction strategies.