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Related Concept Videos

Somatic to iPS Cell Reprogramming01:29

Somatic to iPS Cell Reprogramming

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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...
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Chromatin Modification in iPS Cells01:32

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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.
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Methods of Nuclear Reprogramming01:24

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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...
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Induced Pluripotent Stem Cells01:06

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Stem cells are undifferentiated cells that divide and produce different cell types. Ordinarily, cells that have differentiated into a specific cell type are terminally differentiated; however, scientists have found a way to reprogram these mature cells so that they dedifferentiate and return to an unspecialized, proliferative state. These cells are pluripotent like embryonic stem cells—able to produce all cell types—and are called induced pluripotent stem cells (iPSCs).
Somatic...
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Induced Pluripotent Stem Cells01:13

Induced Pluripotent Stem Cells

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Stem cells are undifferentiated cells that divide and produce different types of cells. Ordinarily, cells that have differentiated into a specific cell type are post-mitotic—that is, they no longer divide. However, scientists have found a way to reprogram these mature cells so that they “de-differentiate” and return to an unspecialized, proliferative state. These cells are also pluripotent like embryonic stem cells—able to produce all cell types—and are therefore...
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Related Experiment Video

Updated: Mar 31, 2026

Kinetic Measurement and Real Time Visualization of Somatic Reprogramming
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SCNT versus iPSCs: proteins and small molecules in reprogramming.

Fei Han1, Xia Li, Dandan Song

  • 1Anhui Provincial Laboratory for Local Livestock and Poultry Genetic Resource Conservation and Breeding, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China.

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Summary

Somatic cell nuclear transplantation and induced pluripotent stem cell technologies reprogram cells. Small molecules and oocyte proteins enhance reprogramming efficiency, overcoming barriers in cell fate plasticity research.

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Area of Science:

  • Cell biology
  • Developmental biology
  • Chemical biology

Background:

  • Somatic cell nuclear transplantation (SCNT) and induced pluripotent stem cell (iPSC) technologies are key for cell fate reprogramming.
  • Low cloning efficiency and differences between iPSCs and embryonic stem cells (ESCs) hinder progress, potentially due to incomplete reprogramming.
  • The expression patterns of reprogramming factors (OSKM) differ between SCNT and iPSCs, suggesting distinct reprogramming mechanisms.

Purpose of the Study:

  • To review current SCNT and iPSC technologies.
  • To discuss recent advances in using proteins and small molecules to improve cellular reprogramming.
  • To highlight the role of chemical biology and proteomics in advancing reprogramming.

Main Methods:

  • Literature review of SCNT and iPSC technologies.
  • Analysis of recent studies on small molecules and proteins in reprogramming.
  • Exploration of chemical biology and proteomics applications.

Main Results:

  • Small molecules and oocyte/embryonic proteins can replace transcription factors and accelerate reprogramming.
  • These factors can erase reprogramming memory, improving efficiency and fidelity.
  • Advances in chemical biology and proteomics are crucial for enhancing reprogramming.

Conclusions:

  • Small molecules and specific proteins show promise in overcoming SCNT and iPSC reprogramming barriers.
  • Further research integrating chemical biology and proteomics can lead to clinical-grade iPSCs.
  • Understanding these factors is vital for advancing cell fate plasticity and regenerative medicine.