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Related Concept Videos

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...
Multipotency and Niche of Bulge Stem Cell01:06

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A hair follicle or HF is a small part of the skin that produces the hair shaft. Paul Gerson Unna was the first to observe a bulge in the human hair follicle's outer root sheath (ORS). The bulge is present between the sebaceous gland and the arrector pili muscle and is the niche for hair follicle stem cells (HFSCs). The bulge is also a niche for melanocyte stem cells, and their loss results in graying of hair. The HFSCs express Sox9 and Lhx2, which help them maintain stemness and prevent...
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 Therapy for Tissue Regeneration01:21

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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
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Enabling stem cell therapies through synthetic stem cell-niche engineering.

Raheem Peerani1, Peter W Zandstra

  • 1Institute of Biomaterials and Biomedical Engineering, and Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada.

The Journal of Clinical Investigation
|January 7, 2010
PubMed
Summary

Creating synthetic stem cell niches is crucial for targeted therapies. Microscale engineering helps understand and reconstruct these niches, paving the way for regenerative medicine.

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Area of Science:

  • Biomedical Engineering
  • Stem Cell Biology
  • Regenerative Medicine

Background:

  • Stem cell-targeted therapies need understanding of local microenvironments (niches).
  • The in vivo stem cell niche is complex and dynamic.
  • Interactions of niche components modulating stem cell fate are poorly understood.

Purpose of the Study:

  • To discuss microscale engineering strategies for examining and reconstructing stem cell niche components.
  • To explore the potential of synthetic stem cell-niche engineering for regenerative therapies.

Main Methods:

  • Utilizing the hematopoietic stem cell (HSC) niche as a model system.
  • Applying microscale engineering strategies for systematic examination and reconstruction of niche components.

Main Results:

  • Demonstrated microscale engineering approaches to analyze individual niche components.
  • Highlighted the potential for reconstructing functional stem cell niches.

Conclusions:

  • Synthetic stem cell-niche engineering offers a novel foundation for regenerative therapies.
  • Further research into niche component interactions is essential for advancing stem cell therapies.