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Related Concept Videos

Forced Transdifferentiation01:28

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Transdifferentiation, also known as lineage reprogramming, was first discovered by Selman and Kafatos in 1974 in silkmoths. They observed that the moths’ cuticle-producing cells transformed into salt-producing cells. Many such cases of natural transdifferentiation occur in organisms. In humans, pancreatic alpha cells can become beta cells. In newts, the loss of the eye’s lens causes the pigmented epithelial cells to transdifferentiate into the lens cells.
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Glucose Homeostasis: Pancreatic Islets and Insulin Secretion01:27

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The pancreatic islets comprising only 1%-2% of the volume are highly vascularized and innervated mini-organs. They contain five endocrine cell types, including β cells that secrete insulin, which is synthesized as a single polypeptide chain, preproinsulin, processed to proinsulin, and finally to insulin and C-peptide. This process is complex and regulated, involving the Golgi complex, the endoplasmic reticulum, and the secretory granules of the β cell.
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Insulin: Biosynthesis, Chemistry, and Preparation01:25

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The endoplasmic reticulum (ER) of pancreatic β-cells synthesizes preproinsulin, which consists of a signal peptide, A and B chains, and a C-peptide. Preproinsulin is then cleaved and folded into proinsulin, which translocates to the Golgi apparatus for sorting and packaging into secretory granules. In these granules, enzymatic clipping generates insulin and C-peptide.
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iPS Cell Differentiation01:22

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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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Diabetes Mellitus: Overview and Type I Subtype01:22

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Diabetes mellitus is a chronic metabolic disorder characterized by high blood glucose levels due to inadequate insulin production, insulin resistance, or both. The condition affects millions worldwide and can significantly impact their health and quality of life.
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Related Experiment Video

Updated: Sep 3, 2025

Differentiation of Human Pluripotent Stem Cells into Insulin-Producing Islet Clusters
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Pancreatic Transdifferentiation Using β-Cell Transcription Factors for Type 1 Diabetes Treatment.

Alexandra L G Mahoney1, Najah T Nassif1, Bronwyn A O'Brien1

  • 1School of Life Sciences, University of Technology Sydney, Sydney 2007, Australia.

Cells
|July 27, 2022
PubMed
Summary

Type 1 diabetes treatment is exploring gene therapy to regenerate insulin-producing beta cells. Pancreatic transcription factors delivered via viral vectors show promise for transdifferentiation, potentially curing the disease.

Keywords:
beta-cell transcription factorsgene therapypancreatic transdifferentiationtype 1 diabetesviral vectors

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Area of Science:

  • Endocrinology
  • Regenerative Medicine
  • Gene Therapy

Background:

  • Type 1 diabetes involves autoimmune destruction of insulin-producing beta cells.
  • Current treatments require constant blood glucose monitoring and insulin injections with side effects.
  • Novel therapeutic strategies are needed to effectively manage or cure type 1 diabetes.

Purpose of the Study:

  • To review the use of pancreatic transcription factors for inducing pancreatic transdifferentiation in type 1 diabetes.
  • To explore the potential of gene therapy with viral vectors for beta cell regeneration.
  • To assess the application of these factors in developing insulin-producing cells from non-beta cells.

Main Methods:

  • Review of studies utilizing various combinations of pancreatic and beta-cell transcription factors.
  • Investigation of viral vector-mediated delivery of transcription factors.
  • Analysis of pancreatic transdifferentiation induction in non-beta cells.

Main Results:

  • Successful induction of pancreatic transdifferentiation has been achieved in some studies.
  • Different combinations of transcription factors yield varying degrees of success.
  • Gene therapy offers a potential route for beta cell replacement.

Conclusions:

  • Pancreatic transcription factors are key targets for beta cell regeneration in type 1 diabetes.
  • Viral vector-mediated gene therapy holds potential as a curative approach.
  • Developing insulin-producing cells from non-beta cells could revolutionize type 1 diabetes treatment.