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Related Concept Videos

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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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Epigenetic Regulation01:37

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Epigenetic changes alter the physical structure of the DNA without changing the genetic sequence and often regulate whether genes are turned on or off. This regulation ensures that each cell produces only proteins necessary for its function. For example, proteins that promote bone growth are not produced in muscle cells. Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
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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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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...
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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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Cellular reprogramming to model and study epigenetic alterations in cancer.

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Cancer progression involves non-genetic changes, like faulty gene regulation. Cellular reprogramming offers a way to study these epigenetic alterations in cancer, despite current limitations.

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Area of Science:

  • Epigenetics and Cancer Biology
  • Cellular Reprogramming

Background:

  • Cancer development requires genetic mutations but also relies on reversible non-genetic alterations.
  • Dysregulation of gene expression through chromatin states and master transcription factors contributes to cancer etiology.
  • Cellular reprogramming is a powerful tool for modeling cancer progression.

Purpose of the Study:

  • To review the history and recent advances in reprogramming cancer cells.
  • To explore lessons from normal cell reprogramming applicable to cancer research.
  • To discuss the role of cellular reprogramming in studying epigenetic alterations in tumorigenesis.

Main Methods:

  • Review of historical and recent literature on cancer cell reprogramming.
  • Analysis of insights from normal cell reprogramming for cancer applications.
  • Discussion of current limitations and future strategies for cancer cell reprogramming.

Main Results:

  • Cellular reprogramming provides a model to study cancer progression driven by non-genetic factors.
  • Understanding epigenetic alterations in cancer can be advanced through reprogramming techniques.
  • Current reprogramming methods face limitations that need to be addressed for effective cancer research.

Conclusions:

  • Cellular reprogramming is crucial for investigating the epigenetic basis of cancer.
  • Overcoming obstacles in cancer cell reprogramming will enhance our understanding of tumorigenesis.
  • Future research should focus on refining reprogramming strategies to study cancer's non-genetic drivers.