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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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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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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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Induced Pluripotent Stem Cells01:13

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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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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).
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Advances in reprogramming to pluripotency.

Suad Alateeq, Patrick R J Fortuna, Ernst Wolvetang1

  • 1Australian Institute for Bioengineering and Nanotechnology, Level 4, Building 75, University of Queensland, St Lucia QLD 4072, Australia. e.wolvetang@uq.edu.au.

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Pluripotent stem cells (PSCs) derived from somatic cells offer research and therapeutic potential. Reprogramming methods significantly impact PSC characteristics, influencing their safety and quality for clinical applications.

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Area of Science:

  • Stem cell biology
  • Regenerative medicine
  • Molecular biology

Background:

  • Pluripotent stem cells (PSCs) derived from somatic cells are valuable for disease modeling and regenerative medicine.
  • These cells hold promise for autologous cell therapies.
  • Understanding PSC derivation is crucial for their therapeutic application.

Purpose of the Study:

  • To review basic strategies and methods for reprogramming somatic cells to pluripotency.
  • To discuss how reprogramming mechanisms influence PSC characteristics, safety, and quality.
  • To explore factors like culture conditions and donor cell source affecting PSC properties.

Main Methods:

  • Literature review of reprogramming strategies.
  • Analysis of mechanisms influencing pluripotency induction.
  • Discussion of PSC quality and safety considerations.

Main Results:

  • Various reprogramming methods exist, each with potential impacts on PSCs.
  • Reprogramming mechanisms can affect the safety and quality of derived PSCs.
  • Culture conditions and donor cell source are key factors influencing PSC properties.

Conclusions:

  • The choice of reprogramming method is critical for generating high-quality, safe PSCs.
  • Further research into reprogramming mechanisms is needed to optimize PSCs for therapy.
  • Optimized PSC derivation holds significant promise for advancing medical therapies.