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Epigenetic Regulation01:37

Epigenetic Regulation

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.
X-chromosome...
Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
Epigenetic Regulation01:46

Epigenetic Regulation

Epigenetic mechanisms play an essential role in healthy development. Conversely, precisely regulated epigenetic mechanisms are disrupted in diseases like cancer.
Methods of Nuclear Reprogramming01:24

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.
Somatic to iPS Cell Reprogramming01:29

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...
Introduction to Nuclear Reprogramming01:14

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...

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Video Experimental Relacionado

Updated: May 12, 2026

Reprogramming Pancreatic Ductal Adenocarcinoma to Pluripotency
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La reprogramación epigenética en el cáncer.

Mario L Suvà1, Nicolo Riggi, Bradley E Bernstein

  • 1Howard Hughes Medical Institute, Chevy Chase, MD 20815, USA.

Science (New York, N.Y.)
|March 30, 2013
PubMed
Resumen

Las transiciones de estado celular, impulsadas por factores de transcripción y reguladores de la cromatina, ofrecen información sobre el desarrollo del cáncer y los modelos de células madre. Comprender estos mecanismos es clave para la medicina regenerativa y la oncología.

Área de la Ciencia:

  • Biología celular Biología celular.
  • La epigenética es la epigenética.
  • Oncología Oncología.

Sus antecedentes:

  • La pluripotencia inducida y la conversión de linaje directo revelan los roles de los factores de transcripción y los reguladores de la cromatina en las transiciones de estado celular.
  • Estos procesos tienen implicaciones para la medicina regenerativa y la comprensión del desarrollo del cáncer.

Objetivo del estudio:

  • Revisar paralelismos conceptuales entre las transiciones de estado celular y la oncogénesis.
  • Para resaltar las interrelaciones entre los factores de transcripción, los reguladores de la cromatina y los estados epigenéticos en el cáncer.

Principales métodos:

  • Revisión de la literatura y análisis conceptual.
  • Análisis comparativo de los mecanismos en la reprogramación celular y la biología del cáncer.

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Principales resultados:

  • Se identifican mecanismos compartidos que involucran factores de transcripción, reguladores de la cromatina y estados epigenéticos.
  • Estas vías compartidas iluminan la transformación oncogénica y la heterogeneidad tumoral.

Conclusiones:

  • La comprensión de los mecanismos de transición del estado celular proporciona información sobre los modelos de células madre del cáncer.
  • Los hallazgos sirven de puente entre la medicina regenerativa y la investigación del cáncer al resaltar principios regulatorios comunes.