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Related Concept Videos

Tissue Renewal without Stem Cells01:23

Tissue Renewal without Stem Cells

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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.
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The pancreas, a vital organ within the abdominal cavity, plays dual roles in the digestive and endocrine systems, collaborating with exocrine and endocrine cells to maintain optimal digestion and blood sugar levels.
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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.
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Insulin secretory vesicles release insulin to stimulate blood glucose uptake and regulate carbohydrate metabolism. When the blood glucose levels increase, glucose enters the pancreatic β-islet cells through glucose transporters. Once inside, glucose is metabolized through glycolysis, the citric acid cycle, and the electron transport chain, producing ATP. This increase in ATP concentration closes ATP-sensitive potassium channels, leading to depolarization of the membrane and the opening of...
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Related Experiment Video

Updated: Apr 5, 2026

Differentiation of Human Pluripotent Stem Cells Into Pancreatic Beta-Cell Precursors in a 2D Culture System
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Differentiation of Human Pluripotent Stem Cells Into Pancreatic Beta-Cell Precursors in a 2D Culture System

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Accessory cells for β-cell transplantation.

W Staels1,2,3, S De Groef1, Y Heremans1

  • 1Diabetes Research Center, Vrije Universiteit Brussel, Brussels, Belgium.

Diabetes, Obesity & Metabolism
|August 21, 2015
PubMed
Summary
This summary is machine-generated.

Insulin therapy for diabetes is not a cure. Enhancing beta-cell regeneration or transplantation with accessory cells may offer a promising alternative for diabetes treatment.

Keywords:
accessory cellsdiabetespancreastransplantationβ cell

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Area of Science:

  • Endocrinology
  • Regenerative Medicine
  • Diabetes Mellitus Research

Background:

  • Current insulin therapy for diabetes mellitus is a treatment, not a cure, with risks.
  • Restoring beta-cell mass via regeneration or transplantation is a potential alternative.
  • Significant hurdles impede widespread application of beta-cell replacement therapy.

Purpose of the Study:

  • To review current challenges in beta-cell therapy for diabetes.
  • To explore the potential benefits of accessory cells in islet transplantation.
  • To highlight advancements in regenerative approaches for diabetes.

Main Methods:

  • Literature review of current beta-cell therapy research.
  • Analysis of experimental islet transplantation outcomes.
  • Focus on the role of co-transplanted accessory non-islet cells.

Main Results:

  • Beta-cell regeneration signals remain largely unknown.
  • Beta-cell replacement therapy faces significant obstacles.
  • Co-transplantation with accessory cells improves experimental islet transplant outcomes.

Conclusions:

  • Accessory cells show promise for enhancing islet transplantation.
  • Further research into beta-cell regeneration is crucial.
  • Improving beta-cell therapy could offer a functional cure for diabetes.