Related Experiment Video
Updated: Jun 30, 2025
11:27
Growing Neural Stem Cells from Conventional and Nonconventional Regions of the Adult Rodent Brain
Published on: November 18, 2013
12.2K
Organ Regeneration Without Relying on Regeneration-Dedicated Stem Cells.
1Osaka University, Suita, Osaka, Japan.
Results and Problems in Cell Differentiation
|March 21, 2024
Summary
Most vertebrate tissue regeneration does not rely on dedicated stem cells, challenging classic assumptions. Skeletal muscle satellite cells are a notable exception, with research exploring gene therapy to enhance mammalian regeneration.
Area of Science:
- Developmental Biology
- Regenerative Medicine
- Cell Biology
Background:
- The traditional view proposed dedicated stem cells for tissue regeneration.
- Recent cell tracing studies challenge this model in most vertebrate regeneration.
- Skeletal muscle satellite cells are a validated exception.
Purpose of the Study:
- To review large-scale tissue regeneration examples.
- To examine mammalian liver, newt lens, and limb regeneration.
- To explore enhancing mammalian regeneration with gene therapy.
Main Methods:
- Review of existing literature on tissue regeneration.
- Analysis of cell tracing and experimental data.
- Discussion of gene therapy approaches for regeneration.
Main Results:
- Evidence suggests most vertebrate regeneration does not use dedicated stem cells.
- Skeletal muscle satellite cells are confirmed regeneration-dedicated reserve cells.
- Large-scale regeneration occurs in liver, lens, and limbs.
Conclusions:
- The concept of regeneration-proper stem cells needs revision for most vertebrates.
- Skeletal muscle regeneration provides a model system.
- Exogenous transcription factors offer potential for enhancing mammalian regeneration.
Related Concept Videos
01:23Tissue Renewal without Stem Cells
1.7K
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...
However, failure of such a system...
1.7K
01:17Stem Cell Culture
5.2K
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...
5.2K
01:33Whole Body Regeneration
3.3K
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;...
3.3K
01:27Source And Potency Of Stem Cells
4.8K
Stem cells are undifferentiated cells with extensive self-renewal properties that help them maintain their population during the fetal and adult stages of life. They can specialize in all cell types of the human body. However, their differential potential may vary and can be classified into five types. Stem cells can be (1) Totipotent, (2) Pluripotent, (3) Multipotent, (4) Oligopotent, and (5) Unipotent. Each stem cell has a specific origin; the fertilized egg or zygote is a totipotent cell and...
4.8K
01:21Stem Cell Therapy for Tissue Regeneration
4.0K
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 of Stem Cells used in Stem Cell Therapy
The two main cell...
4.0K
01:22iPS Cell Differentiation
2.7K
The ability of induced pluripotent stem cells or iPSCs to differentiate into most body cell types has stimulated repair and regenerative medicine research over the past few decades. iPSC-derived blood cells, hepatocytes, beta islet cells, cardiomyocytes, neurons, and other cell types can repair injuries or regenerate damaged tissue in diseases such as diabetes and neurodegenerative disorders.
2.7K