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Somatic to iPS Cell Reprogramming

Somatic to iPS Cell Reprogramming

Reprogramming alters the gene expression in somatic cells, transforming them into induced pluripotent stem (iPS) cells over several generations. Scientists can reprogram cells by introducing genes for four transcription factors—Oct4, Sox2, Klf4, and c-Myc (OSKM) by viral or non-viral methods. These factors are also known as Yamanaka factors after Shinya Yamanaka, who first generated iPS cells using mouse skin cells. Yamanaka was awarded the Nobel Prize in Physiology or Medicine in 2012 for this...

Methods of Nuclear Reprogramming

Methods of Nuclear Reprogramming

Nuclear reprogramming is a process of transforming one cell type into an unrelated cell type by epigenetic changes that alter the cell’s original gene expression pattern. Such epigenetic changes force cells to express a different set of genes, which play a significant role in inducing transformation into other cell types. Nuclear reprogramming offers applications in reproductive cloning for livestock propagation and regenerative medicine — developing patient-specific cells for injury repair.

Introduction to Nuclear Reprogramming

Introduction to Nuclear Reprogramming

Nuclear reprogramming is the process of switching gene expression of one cell type to that of another cell type, usually from a differentiated cell state to an undifferentiated cell state. Differentiation occurs during processes such as development and morphogenesis, tissue regeneration, and malignancy. Cells can also be artificially induced to reprogram their gene expression by techniques such as nuclear transfer, induced pluripotency, and cell fusion. Such techniques have many applications in...

Chromatin Modification in iPS Cells

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Chromatin modification alters gene expression; therefore, scientists can add histone-modifying enzymes, histone variants, and chromatin remodeling complexes to somatic cells to aid reprogramming into pluripotent stem (iPS) cells.
Compact chromatin makes reprogramming difficult. Enzymes, such as histone demethylases and acetyltransferases, are often added during reprogramming to loosen the chromatin, making the DNA more accessible to transcription factors. Molecules that inhibit histone...

Lineage Commitment

Lineage Commitment

Commitment is the process whereby stem cells:

Forced Transdifferentiation

Forced Transdifferentiation

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.
Artificial transdifferentiation occurs...

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Updated: May 31, 2026

Reprogramming Pancreatic Ductal Adenocarcinoma to Pluripotency

Reprogramming Pancreatic Ductal Adenocarcinoma to Pluripotency

Published on: February 2, 2024

The evolving biology of cell reprogramming.

Ian Wilmut¹, Gareth Sullivan, Ian Chambers

¹MRC Centre for Regenerative Medicine, University of Edinburgh, Chancellor's Building, 49 Little France Crescent, Edinburgh, EH16 4SB, Scotland, UK. ian.wilmut@ed.ac.uk

Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences

|July 6, 2011

Summary

Cellular reprogramming allows changing cell types, offering new ways to study and treat genetic diseases. While promising for conditions like Parkinson's, challenges remain before these stem cell therapies become reality.

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Area of Science:

Stem cell biology
Cellular reprogramming
Regenerative medicine

Background:

Cellular reprogramming enables reliable transformation of one cell type into another.
This technology provides novel approaches to investigate cell identity.
It opens avenues for studying and potentially treating genetic and degenerative diseases.

Discussion:

Patient-derived cells can model inherited diseases for phenotype analysis.
Therapeutic strategies can be developed by identifying cellular differences.
Cellular reprogramming offers potential for cell replacement therapies.

Key Insights:

Stem cell advancements mimic ancient alchemical dreams.
Cellular reprogramming is key to understanding and treating diseases.
Patient-specific cell generation aids in disease research.

Outlook:

Cell-based therapies hold promise for degenerative diseases like Parkinson's and ALS.
Significant biological and technical hurdles must be addressed.
Responsible communication of advances is crucial for public trust.