Related Experiment Video
Updated: Jun 12, 2025
09:07
Prediction and Validation of Gene Regulatory Elements Activated During Retinoic Acid Induced Embryonic Stem Cell Differentiation
Published on: June 21, 2016
8.2K
EnhancerNet: a predictive model of cell identity dynamics through enhancer selection.
1Department of Mathematics, Imperial College London, London, SW7 2AZ, UK.
Development (Cambridge, England)
|September 18, 2024
Summary
EnhancerNet models cell identity through transcription factor-enhancer interactions, simplifying complex dynamics. This framework explains cell differentiation and reprogramming, offering insights into cell evolution.
Area of Science:
- Cell Biology
- Genomics
- Theoretical Biology
Background:
- Cell identity acquisition during differentiation is a fundamental challenge.
- Genome encodes cell identity through complex regulatory networks.
Purpose of the Study:
- To develop a theoretical framework (EnhancerNet) modeling cell identity regulation.
- To understand the role of transcription factor-enhancer interactions in cell fate determination.
Main Methods:
- Developed EnhancerNet, a computational model for transcription factor-enhancer interactions.
- Modeled autoregulation constraints to simplify cell dynamics.
- Parameterized the model using observed cell identities.
Main Results:
- EnhancerNet successfully recapitulates experimental observations of cell identity dynamics.
- The model explains enhancer selection, cell fate induction, and hierarchical differentiation.
- It accurately predicts reprogramming outcomes and the hematopoietic differentiation hierarchy without unobserved parameters.
Conclusions:
- EnhancerNet provides a simplified yet powerful model for cell identity regulation.
- The framework highlights the importance of distal regulatory elements and dynamic chromatin.
- It offers insights into cell type evolution and multicellular development.
Keywords:
Cell fateCell identityDynamical systemsEnhancer selectionStatistical physicsSystems biologyMore Related Videos
Related Concept Videos
01:14Maintenance of the ES Cell State
2.2K
The cells of the blastocyst inner cell mass only remain pluripotent for a short time. This state of pluripotency and self-renewal can be maintained in embryonic stem (ES) cell culture by adding specific chemicals or growth factors to ensure the cells can continue dividing and later differentiate into different cell types. In some cases, the cells are grown on a feeder layer of differentiated cells, which provides the growth factors and extracellular matrix components necessary for stem cell...
2.2K
01:29Somatic to iPS Cell Reprogramming
2.2K
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...
2.2K
01:32Chromatin Modification in iPS Cells
1.6K
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...
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...
1.6K