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Related Concept Videos

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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The histone proteins have a flexible N-terminal tail extending out from the nucleosome. These histone tails are often subjected to post-translational modifications such as acetylation, methylation, phosphorylation, and ubiquitination. Particular combinations of these modifications form “histone codes” that influence the chromatin folding and tissue-specific gene expression.
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Related Experiment Video

Updated: Jan 17, 2026

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Unlocking the epigenome: Single-cell histone profiling in cortical development.

Yong-Qi Gao1, Fides Zenk1

  • 1Ecole Polytechnique Federal Lausanne (EPFL) | School of Life Sciences | Brain Mind Institute | EpiGN - Epigenomics of Neurodevelopmental Disorders | Station 19, 1015 Lausanne, Switzerland; Ecole Polytechnique Federal Lausanne (EPFL) | School of Life Sciences | Brain Mind Institute | EpiGN - Epigenomics of Neurodevelopmental Disorders | Chemin des Mines 9, 1202 Geneve, Switzerland.

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Summary
This summary is machine-generated.

This study used advanced epigenomic analysis to reveal how histone modifications, like H3K27me3, control neural progenitor cell fate during human brain development. Multiplexed epigenomics offers new insights into developmental processes.

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Epigenetics

Background:

  • Human brain development involves complex regulation of neural progenitor cell fate.
  • Epigenetic modifications play a crucial role in cellular differentiation.
  • Understanding these mechanisms is key to addressing developmental disorders.

Purpose of the Study:

  • To investigate the role of histone modifications in governing neural progenitor fate.
  • To profile chromatin states in the developing human cortex and cortical organoids.
  • To explore the potential of multiplexed epigenomics in studying human brain development.

Main Methods:

  • Single-cell cytometry by time-of-flight (CyTOF) was employed for high-dimensional epigenetic analysis.
  • Histone modifications, including H3K27me3, were profiled in primary human cortical cells and organoids.
  • Data analysis focused on correlating chromatin states with neural progenitor cell fate.

Main Results:

  • Specific histone modification patterns, particularly H3K27me3, were identified as key regulators of neural progenitor cell differentiation.
  • Distinct chromatin states were observed in primary cortical cells versus cortical organoids.
  • The study demonstrated the feasibility of multiplexed epigenomics for detailed developmental profiling.

Conclusions:

  • Epigenetic regulation, specifically H3K27me3, is a critical determinant of neural progenitor cell fate during human brain development.
  • Multiplexed epigenomics is a powerful approach for dissecting complex developmental processes.
  • This research provides a foundation for future studies on brain development and related disorders.