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Related Concept Videos

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...
Whole Body Regeneration01:33

Whole Body Regeneration

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; even...
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...
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...
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: May 20, 2026

Methods for the Study of Regeneration in Stentor
08:48

Methods for the Study of Regeneration in Stentor

Published on: June 13, 2018

Toward a blueprint for regeneration.

Gregory Nachtrab1, Kenneth D Poss

  • 1Department of Cell Biology and Howard Hughes Medical Institute, Duke University Medical Center, Durham, NC 27710, USA.

Development (Cambridge, England)
|July 12, 2012
PubMed
Summary
This summary is machine-generated.

Tissue regeneration, a long-studied but poorly understood area of developmental biology, was explored at a recent Keystone Symposium. Experts discussed mechanisms of regeneration and applications in regenerative medicine.

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Planarian Immobilization, Partial Irradiation, and Tissue Transplantation
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Planarian Immobilization, Partial Irradiation, and Tissue Transplantation

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Three-dimensional Tissue Engineered Aligned Astrocyte Networks to Recapitulate Developmental Mechanisms and Facilitate Nervous System Regeneration
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Three-dimensional Tissue Engineered Aligned Astrocyte Networks to Recapitulate Developmental Mechanisms and Facilitate Nervous System Regeneration

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Last Updated: May 20, 2026

Methods for the Study of Regeneration in Stentor
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Planarian Immobilization, Partial Irradiation, and Tissue Transplantation
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Published on: August 6, 2012

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Three-dimensional Tissue Engineered Aligned Astrocyte Networks to Recapitulate Developmental Mechanisms and Facilitate Nervous System Regeneration

Published on: January 10, 2018

Area of Science:

  • Developmental Biology
  • Regenerative Medicine

Background:

  • Tissue regeneration remains a complex and incompletely understood field within developmental biology.
  • Historical research has laid groundwork, but significant gaps in knowledge persist.

Framework:

  • The Keystone Symposium on Mechanisms of Whole Organ Regeneration convened diverse experts.
  • Discussions integrated classic and novel concepts in regeneration.

Implementation:

  • Biologists, clinicians, and bioengineers shared insights across various model systems.
  • The symposium fostered interdisciplinary dialogue on regenerative processes.

Implications:

  • Advancing the understanding of regeneration mechanisms is crucial for regenerative medicine.
  • The findings hold potential for developing new therapeutic strategies for tissue repair and organ regeneration.