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Related Concept Videos

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...
Overview of Regeneration and Repair01:19

Overview of Regeneration and Repair

Regeneration and repair processes are critical in healing damages caused by injury, disease, and aging. In regeneration, the damaged tissue is entirely replaced with new growth that restores the original architecture and function. In contrast, tissue repair usually results in a fixed tissue architecture involving scar formation. Scars generally do not reestablish tissue function and may also exhibit structural abnormalities at the injury site.
Regeneration
All animals have varying degrees of...
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...
Liver Regeneration01:24

Liver Regeneration

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.
Cells of Liver
The liver comprises four major types of cells— hepatocytes, stellate, Kupffer, and sinusoidal endothelial cells. The hepatocytes are large...
Neurogenesis and Regeneration of Nervous Tissue01:15

Neurogenesis and Regeneration of Nervous Tissue

In the CNS, neurogenesis, the birth of new neurons from stem cells, is limited to the hippocampus in adults. In other regions of the brain and spinal cord, neurogenesis is almost non-existent due to inhibitory influences from neuroglia, especially oligodendrocytes, and the absence of growth-stimulating cues. The myelin produced by oligodendrocytes in the CNS inhibits neuronal regeneration. Furthermore, astrocytes proliferate rapidly after neuronal damage, forming scar tissue that physically...
Healing I: Introduction01:11

Healing I: Introduction

Healing is the physiological process by which the body restores the integrity and function of damaged tissues following injury. It involves a coordinated interplay of cellular proliferation, extracellular matrix remodeling, and growth factor signaling. The extent and nature of the tissue damage determine whether healing occurs by resolution, regeneration, or replacement.ResolutionResolution represents the most complete form of healing, occurring when the injury is minimal and tissue...

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Related Experiment Video

Updated: Jun 8, 2026

Electrospinning Growth Factor Releasing Microspheres into Fibrous Scaffolds
09:29

Electrospinning Growth Factor Releasing Microspheres into Fibrous Scaffolds

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Tissue regeneration based on growth factor release.

Yasuhiko Tabata1

  • 1Institute for Frontier Medical Sciences, Kyoto University, Japan. yasuhiko@frontier.kyoto-u.ac.jp

Tissue Engineering
|September 27, 2003
PubMed
Summary
This summary is machine-generated.

Tissue engineering uses cells and scaffolds to regenerate tissues. Effective regeneration relies on controlled growth factor delivery via drug delivery systems for enhanced tissue repair.

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Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Biomaterials Science

Background:

  • Tissue engineering aims to repair or replace damaged tissues and organs using cells.
  • Scaffolds and growth factors are crucial for creating environments that support cell regeneration.
  • Growth factors promote angiogenesis, vital for nutrient supply to engineered tissues.

Purpose of the Study:

  • To review tissue regeneration strategies focused on growth factor release.
  • To highlight the critical role of drug delivery systems in tissue engineering.

Main Methods:

  • Review of existing literature on tissue regeneration and growth factor applications.
  • Analysis of the challenges and solutions in delivering growth factors in vivo.
  • Emphasis on the integration of scaffolds and drug delivery systems.

Main Results:

  • Growth factors are essential for promoting tissue regeneration and angiogenesis.
  • In vivo instability of growth factors limits their therapeutic efficacy.
  • Drug delivery systems are necessary to stabilize growth factors and ensure their controlled release.

Conclusions:

  • Controlled release of growth factors via drug delivery systems is indispensable for successful tissue engineering.
  • Optimized drug delivery systems can enhance the stability and biological effects of growth factors.
  • Future tissue engineering strategies must integrate advanced drug delivery for effective regeneration.