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Updated: May 19, 2026
07:34
Induction of Acute Ischemic Stroke in Mice Using the Distal Middle Artery Occlusion Technique
Published on: December 15, 2023
Epigenetic mechanisms in stroke and epilepsy
Jee-Yeon Hwang1, Kelly A Aromolaran, R Suzanne Zukin
1Dominick P. Purpura Department of Neuroscience, Albert Einstein College of Medicine, New York, NY 10461, USA.
Summary
Epigenetic modifications are crucial for brain function and are disrupted in neurological disorders like stroke and epilepsy. These conditions activate the REST gene, leading to neurodegeneration via epigenetic remodeling.
Area of Science:
- Neuroscience
- Epigenetics
- Molecular Biology
Background:
- Epigenetic modifications, including DNA methylation and histone modifications, regulate neuronal gene expression.
- These epigenetic mechanisms are vital for brain development, cognitive functions, and memory.
- Dysregulation of epigenetic processes is increasingly linked to neuropsychiatric disorders.
Purpose of the Study:
- To review recent findings on the role of disrupted chromatin modifications in neurodegeneration.
- To explore the common mechanisms underlying neurodegeneration in ischemic stroke and epilepsy.
- To highlight the involvement of the REST gene in these pathological processes.
Main Methods:
- Review of current scientific literature on epigenetics, neurodegeneration, ischemic stroke, and epilepsy.
- Analysis of studies investigating the role of REST (repressor element 1 silencing transcription factor) in neuronal death.
- Examination of research on epigenetic remodeling in response to neuronal insults.
Main Results:
- Disruption of chromatin modifications plays a significant role in neurodegeneration associated with ischemic stroke and epilepsy.
- Both ischemic stroke and epilepsy activate the gene silencing transcription factor REST.
- REST orchestrates epigenetic remodeling of specific genes contributing to neuronal death in vulnerable neuronal populations.
Conclusions:
- Ischemic stroke activates REST in hippocampal CA1 neurons, while seizures activate REST in CA3 neurons.
- Understanding epigenetically dysregulated genes in neuronal insults can advance knowledge of pathophysiology.
- Identifying these dysregulated genes may lead to novel therapeutic strategies for neurodegenerative conditions.
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