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Isolation and Cultivation of Neural Progenitors Followed by Chromatin-Immunoprecipitation of Histone 3 Lysine 79 Dimethylation Mark
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Epigenetic Reprogramming of Cell Identity in the Rat Primary Neuron-Glia Cultures Involves Histone Serotonylation.
Anastasia A Borodinova1, Yulia A Leontovich1, Alexander P Beletskiy1
1Laboratory of Cellular Neurobiology of Learning, Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of Sciences, Moscow 117485, Russia.
Cells
|June 25, 2025
Summary
Histone deacetylase (HDAC) inhibitors promote brain cell differentiation and specialization by altering gene expression and increasing histone serotonylation. This epigenetic remodeling may support long-term cell fate changes.
Area of Science:
- Neuroscience
- Epigenetics
- Cell Biology
Background:
- Epigenetic plasticity allows brain cells to reprogram into different types via transcriptional programs.
- Chromatin remodeling influences cellular differentiation and fate.
- Histone modifications play a crucial role in regulating gene expression.
Purpose of the Study:
- To investigate the effects of histone deacetylase (HDAC) inhibitors on cellular differentiation in rat neuron-glia cultures.
- To analyze how chromatin remodeling impacts cell-specific transcriptional programs.
- To explore the role of histone serotonylation in epigenetic regulation.
Main Methods:
- Transcriptomics analysis to assess gene expression changes.
- Quantitative Polymerase Chain Reaction (qPCR) for gene validation.
- Cytochemistry to evaluate cell-specific markers and protein expression.
Main Results:
- HDAC inhibitors reduced cell proliferation and induced transcriptomic shifts towards differentiation.
- Upregulation of genes in neuromodulatory neurons and downregulation in glia/inhibitory neurons observed.
- Sustained increase in histone serotonylation levels in both neurons and glia.
Conclusions:
- HDAC inhibitors trigger chromatin remodeling, including histone serotonylation, influencing cell differentiation trajectories.
- The observed epigenetic changes may maintain cell fate commitment and facilitate long-term cell reprogramming.
- This study highlights a persistent epigenetic mechanism regulating brain cell specialization.
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