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Related Concept Videos

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...
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.
Chromatin Modification in iPS Cells01:32

Chromatin Modification in iPS Cells

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...
Combinatorial Gene Control02:33

Combinatorial Gene Control

Combinatorial gene control is the synergistic action of several transcriptional factors to regulate the expression of a single gene. The absence of one or more of these factors may lead to a significant difference in the level of gene expression or repression.
The expression of more than 30,000 genes is controlled by approximately 2000-3000 transcription factors. This is possible because a single transcription factor can recognize more than one regulatory sequence. The specificity in gene...
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...
Inheritance of Chromatin Structures03:17

Inheritance of Chromatin Structures

Epigenetics is the study of inherited changes in a cell's phenotype without changing the DNA sequences. It provides a form of memory for the differential gene expression pattern to maintain cell lineage, position-effect variegation, dosage compensation, and maintenance of chromatin structures such as telomeres and centromeres. For example, the structure and location of the centromere on chromosomes are epigenetically inherited. Its functionality is not dictated or ensured by the underlying DNA...

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Related Experiment Video

Updated: May 15, 2026

Reprogramming Pancreatic Ductal Adenocarcinoma to Pluripotency
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Published on: February 2, 2024

Shared gene regulation during human somatic cell reprogramming.

Xiang Wang1, Xuesong Chen, Huijun Zhang

  • 1Laboratory of Developmental Biology, Institute of Medical Science, School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China.

Journal of Genetics and Genomics = Yi Chuan Xue Bao
|January 1, 2013
PubMed
Summary
This summary is machine-generated.

Researchers identified key genes involved in reprogramming human somatic cells into induced pluripotent stem (iPS) cells. This discovery aids in understanding the universal mechanisms of iPS cell generation for therapeutic applications.

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Area of Science:

  • Stem Cell Biology
  • Molecular Biology
  • Genetics

Background:

  • Human induced pluripotent stem (iPS) cells possess pluripotency and self-renewal capabilities, making them valuable for research and therapy.
  • Understanding the mechanisms of somatic cell reprogramming is crucial for harnessing iPS cell potential.

Purpose of the Study:

  • To identify universal gene expression mechanisms during human somatic cell reprogramming.
  • To discover novel genes and biological pathways involved in induced pluripotent stem cell induction.

Main Methods:

  • Comparative gene expression analysis across three cell types undergoing reprogramming.
  • Bioinformatic network analysis to identify gene and protein interactions.

Main Results:

  • Identified a set of 570 commonly regulated genes during iPS cell induction, including known pluripotency markers.
  • Discovered novel genes and biological categories associated with somatic cell reprogramming.
  • Found down-regulated genes to be predicted targets of the miR302/367 microRNA cluster, interacting with POU5F1.

Conclusions:

  • The study provides candidate gene sets that elucidate mechanisms of somatic cell reprogramming.
  • Findings contribute to advancing research in induced pluripotent stem cell technology for disease treatment.