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Related Concept Videos

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...
Regulation of Angiogenesis and Blood Supply01:24

Regulation of Angiogenesis and Blood Supply

Rapidly dividing tumors, embryos, and wounded tissues require more oxygen than usual, lowering the oxygen concentration in the blood. At low oxygen or hypoxic conditions, an oxygen-sensitive transcription factor called the hypoxia-inducible factor 1 or HIF1 is activated. HIF1 is a dimeric protein of alpha (ɑ) and beta (β) subunits.  Under optimal oxygen conditions, HIF1β is present in the nucleus while HIF1ɑ remains in the cytosol. HIF1ɑ is hydroxylated by prolyl hydroxylase and factor...
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...
Tissue Renewal without Stem Cells01:23

Tissue Renewal without Stem Cells

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.
However, failure of such a system...

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Related Experiment Video

Updated: Jun 23, 2026

Stepwise Cell Seeding on Tessellated Scaffolds to Study Sprouting Blood Vessels
07:49

Stepwise Cell Seeding on Tessellated Scaffolds to Study Sprouting Blood Vessels

Published on: January 14, 2021

Vascular regeneration: engineering the stem cell microenvironment.

Guoming Sun1, Sharon Gerecht

  • 1Department of Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD 21218, USA.

Regenerative Medicine
|May 15, 2009
PubMed
Summary
This summary is machine-generated.

Vascular regeneration using stem cells offers permanent solutions for vascular diseases. Engineering suitable microenvironments with signaling cues and scaffolds is key for successful cell-based therapies.

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Last Updated: Jun 23, 2026

Stepwise Cell Seeding on Tessellated Scaffolds to Study Sprouting Blood Vessels
07:49

Stepwise Cell Seeding on Tessellated Scaffolds to Study Sprouting Blood Vessels

Published on: January 14, 2021

Generation and Grafting of Tissue-engineered Vessels in a Mouse Model
13:04

Generation and Grafting of Tissue-engineered Vessels in a Mouse Model

Published on: March 18, 2015

Engineering 3D Cellularized Collagen Gels for Vascular Tissue Regeneration
09:23

Engineering 3D Cellularized Collagen Gels for Vascular Tissue Regeneration

Published on: June 16, 2015

Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Vascular Biology

Background:

  • Vascular diseases pose significant health risks, with current treatments offering only temporary relief.
  • Vascular regeneration presents a promising avenue for permanent and effective disease management.
  • Stem cells and endothelial progenitor cells show potential for vascular repair but require optimized delivery systems.

Purpose of the Study:

  • To review cells investigated for vascular differentiation and regeneration.
  • To explore recent advancements in engineering microenvironments for vascular therapy.
  • To highlight the role of signaling cues and scaffolds in guiding cell development.

Main Methods:

  • Literature review of stem cell differentiation for vascular repair.
  • Analysis of current strategies for engineering cellular microenvironments.
  • Examination of biodegradable scaffolds and signaling molecules in vascular tissue engineering.

Main Results:

  • Identified key cell types with potential for vascular regeneration.
  • Detailed various approaches to create supportive microenvironments for cell-based therapies.
  • Emphasized the importance of specific signaling cues and scaffold properties.

Conclusions:

  • Successful vascular regeneration hinges on effective microenvironment engineering.
  • Optimized scaffolds and signaling pathways are crucial for directing cell differentiation and vessel formation.
  • Cell-based vascular therapy holds significant promise for treating vascular diseases.