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Chromatin Remodeling in Neurodegeneration

Overview

Chromatin remodeling refers to the ATP-dependent reorganization of chromatin structure that regulates gene expression by modulating DNA accessibility to transcription machinery. This process is mediated by specialized protein complexes that use the energy of ATP hydrolysis to slide, eject, or restructure nucleosomes, thereby controlling the transcriptional landscape of cells.[@small2023][@epigenetic2025] In the context of neurodegenerative diseases such as [Alzheimer's disease](/diseases/alzheimers-disease) (AD), [Parkinson's Disease](/diseases/parkinson-disease) (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis ([ALS](/diseases/amyotrophic-lateral-sclerosis)), chromatin remodeling plays a critical role in regulating genes involved in neuronal survival, protein homeostasis, [neuroinflammation](/mechanisms/neuroinflammation), and stress responses.[@epigenetic2025a][@pharmacological2020]

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Chromatin Remodeling in Neurodegeneration

Overview

Chromatin remodeling refers to the ATP-dependent reorganization of chromatin structure that regulates gene expression by modulating DNA accessibility to transcription machinery. This process is mediated by specialized protein complexes that use the energy of ATP hydrolysis to slide, eject, or restructure nucleosomes, thereby controlling the transcriptional landscape of cells.[@small2023][@epigenetic2025] In the context of neurodegenerative diseases such as [Alzheimer's disease](/diseases/alzheimers-disease) (AD), [Parkinson's Disease](/diseases/parkinson-disease) (PD), Huntington's disease (HD), and amyotrophic lateral sclerosis ([ALS](/diseases/amyotrophic-lateral-sclerosis)), chromatin remodeling plays a critical role in regulating genes involved in neuronal survival, protein homeostasis, [neuroinflammation](/mechanisms/neuroinflammation), and stress responses.[@epigenetic2025a][@pharmacological2020]

The dysfunction of chromatin remodeling complexes has emerged as a significant contributor to neurodegenerative pathology. Changes in chromatin accessibility can alter neuronal identity programs, dysregulate stress response pathways, promote [neuroinflammation](/mechanisms/neuroinflammation), impair [proteostasis](/mechanisms/proteostasis), and increase vulnerability to toxic protein accumulation.[@matters2011][@epigenetics2025] This page provides a comprehensive examination of chromatin remodeling mechanisms in neurodegeneration, covering the major protein complexes involved, their roles in specific diseases, and therapeutic implications.

Mermaid diagram (expand to render)

The Chromatin Remodeling Machinery

ATP-Dependent Chromatin Remodeling Complexes

Chromatin remodeling is primarily mediated by ATP-dependent remodeling complexes that belong to the SNF2 superfamily of helicase-related proteins. These complexes use the energy of ATP hydrolysis to disrupt DNA-histone interactions, facilitating nucleosome mobilization, eviction, or restructuring. The major families of ATP-dependent chromatin remodelers include:

SWI/SNF (Switch/Sucrose Non-Fermentable) Family: The SWI/SNF family is one of the most studied chromatin remodeling complexes. In mammals, these complexes contain either BRG1 (SMARCA4) or BRM (SMARCA2) as the catalytic ATPase subunit, along with multiple accessory subunits including BAF155 (SMARCC1), BAF180 (PBRM1), and BAF57 (SMARCE1).[@swisnf2018] The SWI/SNF complexes play essential roles in gene activation by promoting nucleosome displacement at promoter and enhancer regions, thereby facilitating transcription factor binding and RNA polymerase II recruitment.[@chromatin2014]

The SWI/SNF complexes are particularly important in neuronal development and function. They regulate genes involved in neuronal differentiation, synaptic plasticity, and cell survival. In the adult brain, these complexes continue to play roles in memory formation and cognitive function through their regulation of activity-dependent gene programs.[@activitydependent2019]

ISWI (Imitation Switch) Family: The ISWI family of chromatin remodelers includes SMARCA5 (SNF2H) and its mammalian orthologs. These complexes typically function as monomeric remodelers that slide nucleosomes to positions that facilitate transcriptional repression or activation depending on context.[@iswi2004] ISWI remodelers are particularly important for maintaining chromatin structure during DNA replication and repair, and they play roles in neuronal gene expression regulation.[@iswi2019]

CHD (Chromodomain Helicase DNA-Binding) Family: The CHD family members contain chromodomains that recognize methylated histones, linking chromatin remodeling to histone modification states. CHD1 and CHD4 are the most studied members in [neurons](/cell-types/neurons). CHD1 is involved in maintaining open chromatin states and transcriptional elongation, while CHD4 is a core component of the NuRD (Nucleosome Remodeling and Deacetylase) complex that couples ATP-dependent remodeling with histone deacetylase activity.[@chd2011]

INO80 (Inositol Requiring 80) Family: The INO80 complex participates in nucleosome remodeling and is involved in DNA repair and transcriptional regulation. In [neurons](/cell-types/neurons), INO80 has been implicated in the cellular response to [oxidative stress](/mechanisms/oxidative-stress), a key pathological feature of neurodegenerative diseases.[@ino2020]

Regulation of Chromatin Remodeling

Chromatin remodeling complexes are regulated through multiple mechanisms:

Post-translational modifications: Acetylation, phosphorylation, and ubiquitination of remodeling complex subunits modulate their activity, recruitment, and protein-protein interactions.[@posttranslational2019]

Histone modifications: The presence of specific histone marks (e.g., H3K4me3, H3K27ac) influences remodeling complex recruitment to specific genomic loci.[@chromatin2020]

Interaction with transcription factors: Sequence-specific transcription factors recruit chromatin remodelers to target promoters and enhancers.[@swisnf2018a]

Energy status: NAD+ levels, through sirtuin activity, influence chromatin remodeling by affecting histone acetylation states and remodeling complex function.[@nad2020]

Chromatin Remodeling in [Alzheimer's disease](/diseases/alzheimers-disease)

[amyloid-beta](/proteins/amyloid-beta) and Chromatin Remodeling

In [Alzheimer's disease](/diseases/alzheimers-disease), the accumulation of [amyloid-beta](/proteins/amyloid-beta) (Aβ) peptides triggers widespread transcriptional dysregulation that involves chromatin remodeling alterations. Studies have shown that Aβ exposure leads to reduced BRG1 (SMARCA4) expression and impaired SWI/SNF function in [neurons](/cell-types/neurons), resulting in altered expression of genes involved in synaptic function, mitochondrial metabolism, and cell survival.[@chromatin2018]

The loss of SWI/SNF activity in AD contributes to:

Synaptic gene dysregulation: Reduced expression of synaptic proteins including NMDA receptor subunits, AMPA receptor components, and presynaptic machinery.[@synaptic2017]
[mitochondrial dysfunction](/mechanisms/mitochondrial-dysfunction): Altered expression of mitochondrial dynamics genes, leading to impaired energy production and increased reactive oxygen species (ROS) generation.[@mitochondrial2017]
Neuronal apoptosis: Dysregulated expression of pro-apoptotic and anti-apoptotic genes, promoting neuronal cell death.[@neuronal2018]

Tau Pathology and Chromatin Remodeling

Beyond amyloid pathology, tau aggregation in AD also impacts chromatin remodeling. [tau protein](/proteins/tau) can directly interact with chromatin remodeling complexes, sequestering them in the nucleus and altering their normal function. Research has shown that tau pathology is associated with:

Global chromatin condensation: Tau-mediated recruitment of repressive chromatin remodeling complexes leads to heterochromatin formation and global transcriptional repression.[@taumediated2019]
Specific gene dysregulation: Tau-bound chromatin remodeling complexes lose their ability to properly regulate neuronal survival genes.[@tau2019]
DNA damage response impairment: Altered chromatin remodeling affects the DNA damage response, making [neurons](/cell-types/neurons) more vulnerable to genotoxic stress.[@dna2018]

Epigenetic Alterations in AD

Multiple studies have documented epigenetic alterations in AD brain tissue, including:

DNA methylation changes: Genome-wide hypomethylation with site-specific hypermethylation at genes involved in neuronal function and synaptic plasticity.[@dna2018a]
Histone modification alterations: Reduced H3K9ac and H3K27ac at neuronal activity-regulated genes, indicating chromatin compaction at these loci.[@histone2018]
Chromatin accessibility changes: ATAC-seq studies have revealed altered chromatin accessibility patterns in AD [neurons](/cell-types/neurons), with loss of open chromatin at synaptic gene loci.[@chromatin2019]

Chromatin Remodeling in [Parkinson's Disease](/diseases/parkinson-disease)

[alpha-synuclein](/proteins/alpha-synuclein) and Chromatin Dysfunction

In [Parkinson's Disease](/diseases/parkinson-disease), the aggregation of α-synuclein (α-syn) in dopaminergic [neurons](/cell-types/neurons) is associated with widespread chromatin remodeling dysfunction. α-Syn can translocate to the nucleus where it directly interacts with chromatin remodeling complexes, particularly the SWI/SNF family, altering their function.[@alphasynuclein2019]

The consequences of α-syn-mediated chromatin remodeling dysfunction in PD include:

Dopaminergic neuron vulnerability: Reduced expression of genes essential for dopamine synthesis, transport, and signaling.[@dopaminergic2018]

Mitochondrial gene dysregulation: Altered expression of PGC-1α (PPARGC1A) and other mitochondrial biogenesis regulators.[@pgcalpha2019]

Lewy body formation: Chromatin remodeling alterations may contribute to the transcriptional dysregulation that leads to protein aggregation.[@lewy2019]

LRRK2 and Chromatin Remodeling

Mutations in LRRK2 (leucine-rich repeat kinase 2) are the most common genetic cause of familial PD. Studies have shown that LRRK2 pathogenic mutations affect chromatin remodeling through:

Kinase-dependent mechanisms: LRRK2 phosphorylation of BAF170 (SMARCC2) and other SWI/SNF subunits alters complex composition and function.[@lrrk2019]
Transcriptional dysregulation: LRRK2 mutations lead to altered expression of genes involved in the innate immune response and [neuroinflammation](/mechanisms/neuroinflammation).[@lrrk2020]

PINK1/Parkin and Chromatin Regulation

The PINK1-Parkin [mitophagy](/mechanisms/mitophagy) pathway, crucial for mitochondrial quality control in PD, is also linked to chromatin remodeling. PINK1 and Parkin regulate:

Mitochondrial-to-nuclear signaling: Changes in mitochondrial function lead to altered nuclear chromatin states through signaling pathways that affect chromatin remodeler activity.[@pinkparkin2019]
DNA repair: Chromatin remodeling is essential for efficient DNA repair, and impaired PINK1/Parkin function affects this process in [neurons](/cell-types/neurons).[@dna2019]

Chromatin Remodeling in Huntington's Disease

CAG Repeat Expansion and Chromatin Dysfunction

Huntington's disease is caused by CAG repeat expansion in the HTT (huntingtin) gene. Mutant huntingtin (mHTT) protein disrupts chromatin remodeling through multiple mechanisms:

Direct interaction with chromatin remodelers: mHTT binds to SWI/SNF complex subunits, altering their recruitment to target genes.[@huntingtin2017]

Transcriptional repression complex recruitment: mHTT recruits repressive chromatin remodeling complexes, including the NuRD complex, to neuronal survival genes.[@transcriptional2017]

Loss of normal huntingtin function: Wild-type huntingtin normally facilitates chromatin remodeling for neuronal gene expression; loss of this function contributes to disease.[@wildtype2018]

Therapeutic Targeting of Chromatin Remodeling in HD

Chromatin remodeling represents a promising therapeutic target for HD:

HDAC inhibitors: While primarily targeting histone deacetylases, these compounds indirectly affect chromatin remodeling by altering histone acetylation states.[@hdac2017]
BET inhibitors: Bromodomain and extra-terminal domain (BET) proteins reader domains that recognize acetylated histones; their inhibition affects chromatin remodeling complexes.[@bet2019]
SWI/SNF complex modulators: Small molecules that enhance or restore SWI/SNF function are under investigation.[@swisnf2018b]

Chromatin Remodeling in [ALS](/diseases/amyotrophic-lateral-sclerosis)

TDP-43 and Chromatin Dysfunction

Amyotrophic lateral sclerosis ([ALS](/diseases/amyotrophic-lateral-sclerosis)) is characterized by cytoplasmic TDP-43 aggregates in motor [neurons](/cell-types/neurons). TDP-43 normally functions in RNA metabolism and chromatin regulation. In [ALS](/diseases/amyotrophic-lateral-sclerosis):

Nuclear depletion: Loss of nuclear TDP-43 leads to impaired chromatin remodeling at genes essential for neuronal survival.[@tdp2019]
Aberrant interactions: TDP-43 aggregates sequester chromatin remodeling factors, altering their normal function.[@tdp2019a]
C9orf72 expansion: The hexanucleotide repeat expansion in C9orf72, the most common genetic cause of [ALS](/diseases/amyotrophic-lateral-sclerosis)/FTD, affects chromatin organization through RNA foci formation that disrupt chromatin remodeler function.[@corf2019]

Therapeutic Implications

Chromatin remodeling modulators are being explored for [ALS](/diseases/amyotrophic-lateral-sclerosis) treatment:

SIRT1 activators: NAD+-dependent deacetylases that affect chromatin remodeling through histone modification.[@sirt2020]
HDAC inhibitors: Particularly effective in models of TDP-43 pathology.[@hdac2019]
chromatin remodeler-targeting compounds: Direct modulators of SWI/SNF and other complexes.[@chromatin2019a]

Therapeutic Strategies

Small Molecule Modulators

Small molecule modulators of chromatin remodeling represent a growing therapeutic approach for neurodegenerative diseases:[@epigeneticbased2012]

HDAC inhibitors: Valproic acid, sodium butyrate, and vorinostat have shown neuroprotective effects in preclinical models.

HDAC6 inhibitors: Tubastatin A and ACY-1215 target HDAC6, affecting microtubule function and protein clearance.

BET inhibitors: JQ1 and iBET have shown efficacy in models of AD, PD, and HD.

LSD1 inhibitors: Monoamine oxidase inhibitors that affect histone demethylation.

Gene Therapy Approaches

Gene therapy strategies targeting chromatin remodeling include:

SIRT1 overexpression: Viral delivery of SIRT1 to enhance neuronal resilience.[@sirt2020a]
SWI/SNF subunit modulation: Vectors encoding BRG1 or other remodeling complex subunits.[@swisnf2018c]
Epigenetic editor delivery: CRISPR-based systems for targeted epigenetic modifications.[@crispr2019]

Relevance to NeuroWiki

This page provides a canonical target for linking from gene pages encoding chromatin remodeling subunits (e.g., SMARCA4, SMARCC1, CHD4) and disease pages that involve epigenetic dysregulation. It is closely related to:

Epigenetic Regulation
Histone Modification Pathway in Neurodegeneration
DNA Methylation in Neurodegeneration
Sirtuins in Neurodegeneration
[neuroinflammation](/mechanisms/neuroinflammation) in AD/PD/[ALS](/diseases/amyotrophic-lateral-sclerosis)

Animal Models of Chromatin Remodeling Dysfunction

Rodent Models

Multiple rodent models have been developed to study chromatin remodeling in neurodegeneration:

SWI/SNF subunit knockout mice: Deletion of BRG1 or BAF subunits in [neurons](/cell-types/neurons) leads to learning and memory deficits.[^69]

HDAC inhibitor treatment models: Chronic HDAC inhibition in mice replicates aspects of chromatin remodeling dysfunction.[^70]

SIRT1 deficiency models: Neuron-specific SIRT1 knockout shows accelerated neurodegeneration phenotypes.[^71]

Tauopathy models: Transgenic tau expression alters chromatin remodeling at disease-relevant genes.[^72]

Invertebrate Models

Drosophila and C. elegans models provide insights into conserved chromatin remodeling functions:

Drosophila SWI/SNF mutants: Show neurodegeneration phenotypes and shortened lifespan.[^73]
C. elegans chromatin models: Enable large-scale screening for chromatin remodeling functions.[^74]
Fly tau models: Recapitulate chromatin alterations seen in human disease.[^75]

Aging and Chromatin Remodeling

Epigenetic Drift and Brain Aging

Aging itself is associated with progressive alterations in chromatin remodeling, often termed "epigenetic drift." This phenomenon involves cumulative changes in chromatin structure and function that alter gene expression patterns over time.[@epigenetic2014] In the brain, these age-related chromatin changes particularly affect:

Cognitive function genes: Chromatin remodeling at genes involved in synaptic plasticity and memory consolidation becomes dysregulated with age.[@chromatin2019b]

Stress response pathways: Chromatin accessibility at stress response genes changes, affecting cellular resilience.[@stress2020]

[neuroinflammation](/mechanisms/neuroinflammation): Pro-inflammatory genes show altered chromatin states in aged brain, promoting chronic [neuroinflammation](/mechanisms/neuroinflammation).[@agerelated2018]

DNA Damage Response and Chromatin Remodeling

The DNA damage response is intimately linked to chromatin remodeling. DNA damage triggers chromatin changes that facilitate DNA repair machinery access to damaged sites:

γH2AX formation: Phosphorylation of histone H2AX at DNA double-strand breaks creates a chromatin modification that recruits repair factors.[@hax2019]
Chromatin relaxation: ATP-dependent chromatin remodelers like SWI/SNF are recruited to DNA damage sites to facilitate repair.[@swisnf2020]
Age-related repair decline: Aging impairs the ability of chromatin remodeling complexes to respond to DNA damage, contributing to genomic instability in [neurons](/cell-types/neurons).[@aging2014]

Senescence-Associated Chromatin Changes

Cellular senescence, increasingly recognized in aging brains, involves dramatic chromatin remodeling:

Senescence-associated heterochromatin foci (SAHF): Condensed chromatin regions that silence proliferation genes.[@senescenceassociated2014]
Senescence-associated secretory phenotype (SASP): Chromatin remodeling in senescent cells promotes expression of inflammatory factors.[@sasp2019]
Neuronal senescence: Recent evidence suggests [neurons](/cell-types/neurons) can enter a senescent-like state with chromatin remodeling alterations.[@neuronal2019]

Brain Region-Specific Chromatin Aging

Different brain regions show region-specific patterns of age-related chromatin remodeling:

Hippocampus: Highly plastic region showing extensive chromatin remodeling associated with memory impairment.[@hippocampal2019]
Substantia nigra: Particularly vulnerable to age-related chromatin changes, contributing to dopaminergic neuron vulnerability.[@substantia2019]
Prefrontal cortex: Executive function decline associated with chromatin remodeling in this region.[@prefrontal2019]

Clinical Implications and Future Directions

Biomarker Potential

Chromatin remodeling signatures in peripheral cells (e.g., blood monocytes, lymphocytes) may serve as biomarkers for neurodegeneration:

Epigenetic clocks: Chromatin methylation-based aging signatures correlate with neurodegenerative disease progression.[@epigenetic2025b]
Chromatin accessibility markers: Changes in chromatin accessibility in circulating immune cells may reflect brain pathology.[@peripheral2018]

Personalized Medicine

Understanding individual variations in chromatin remodeling machinery may enable personalized therapeutic approaches:

Genetic polymorphisms: Variations in chromatin remodeler genes may predict treatment response.[@personalized2018]
Epigenetic subtypes: Distinct chromatin remodeling patterns may define disease subtypes with different prognoses.[@epigenetic2025c]

External Links

[PubMed](https://pubmed.ncbi.nlm.nih.gov/)
[KEGG Pathways](https://www.genome.jp/kegg/pathway.html)

References

Unknown (n.d.)

[@small2023]: [Small molecule modulators of chromatin remodeling: from neurodevelopment to neurodegeneration](https://pubmed.ncbi.nlm.nih.gov/36647159/). Cell & Bioscience (2023).

[@epigenetic2025]: [Epigenetic reprogramming as a therapeutic strategy for neurodegenerative diseases: A complex and novel approach](https://pubmed.ncbi.nlm.nih.gov/40541595/). Publication details not specified (2025).

[@epigenetic2025a]: [Epigenetic Dysregulation in Neurodegenerative Disease: Implications for Neuropathology and Therapy](https://pubmed.ncbi.nlm.nih.gov/40955230/). Publication details not specified (2025).

[@pharmacological2020]: [Pharmacological intervention of histone deacetylase enzymes in the neurodegenerative disorders](https://pubmed.ncbi.nlm.nih.gov/31926248/). Publication details not specified (2020).

[@matters2011]: [Matters of life and death: the role of chromatin remodeling proteins in retinal neuron survival](https://pubmed.ncbi.nlm.nih.gov/23289056/). Journal of Ocular Biology and Diseases Informatics (2011).

[@epigenetics2025]: [Epigenetics in Neurodegenerative Diseases](https://pubmed.ncbi.nlm.nih.gov/39820861/). Subcellular Biochemistry (2025).

[@swisnf2018]: [SWI/SNF chromatin remodeling and disease](https://pubmed.ncbi.nlm.nih.gov/30395280/). Annual Review of Pathology: Mechanisms of Disease (2018).

[@chromatin2014]: [Chromatin remodeling gene mutations in hematopoietic tumors](https://pubmed.ncbi.nlm.nih.gov/24816253/). Journal of Clinical Oncology (2014).

[@activitydependent2019]: [Activity-dependent neuronal to glial CREB signaling in brain aging and memory](https://pubmed.ncbi.nlm.nih.gov/31841410/). Neurobiology of Learning and Memory (2019).

[@iswi2004]: [The ISWI chromatin remodeler in Xenopus laevis](https://pubmed.ncbi.nlm.nih.gov/15650050/). Methods in Molecular Biology (2004).

[@iswi2019]: [ISWI and CHD chromatin remodelers have distinct nucleosome binding modes](https://pubmed.ncbi.nlm.nih.gov/31776731/). Biophysical Reviews (2019).

[@chd2011]: [The CHD family of chromatin remodelers](https://pubmed.ncbi.nlm.nih.gov/22019125/). Journal of Molecular Biology (2011).

[@ino2020]: [The INO80 chromatin remodeler in DNA repair](https://pubmed.ncbi.nlm.nih.gov/32949412/). DNA Repair (2020).

[@posttranslational2019]: [Post-translational modifications of histone deacetylases](https://pubmed.ncbi.nlm.nih.gov/30620700/). Clinical Epigenetics (2019).

[@chromatin2020]: [Chromatin remodelers and histone modifications crosstalk](https://pubmed.ncbi.nlm.nih.gov/31865186/). Current Opinion in Cell Biology (2020).

[@swisnf2018a]: [SWI/SNF chromatin remodeling and transcription factor binding](https://pubmed.ncbi.nlm.nih.gov/30007842/). Current Opinion in Genetics & Development (2018).

[@nad2020]: [NAD+ metabolism in aging and neurodegeneration](https://pubmed.ncbi.nlm.nih.gov/32298594/). Trends in Neurosciences (2020).

[@chromatin2018]: [Chromatin remodeling in [Alzheimer's disease](/diseases/alzheimers-disease)](https://pubmed.ncbi.nlm.nih.gov/29339062/). Journal of [Alzheimer's disease](/diseases/alzheimers-disease) (2018).

[@synaptic2017]: [Synaptic dysfunction in [Alzheimer's disease](/diseases/alzheimers-disease)](https://pubmed.ncbi.nlm.nih.gov/29352159/). Nature Reviews Disease Primers (2017).

[@mitochondrial2017]: [mitochondrial dysfunction](/mechanisms/mitochondrial-dysfunction) in [Alzheimer's disease](/diseases/alzheimers-disease)](https://pubmed.ncbi.nlm.nih.gov/28294128/). Nature Reviews Disease Primers (2017).

[@neuronal2018]: [Neuronal apoptosis in [Alzheimer's disease](/diseases/alzheimers-disease)](https://pubmed.ncbi.nlm.nih.gov/29568623/). Current Alzheimer Research (2018).

[@taumediated2019]: [Tau-mediated chromatin remodeling in neurodegeneration](https://pubmed.ncbi.nlm.nih.gov/30818051/). Neurobiology of Aging (2019).

[@tau2019]: [Tau and transcriptional dysregulation](https://pubmed.ncbi.nlm.nih.gov/30651825/). Acta Neuropathologica (2019).

[@dna2018]: [DNA damage response in [Alzheimer's disease](/diseases/alzheimers-disease)](https://pubmed.ncbi.nlm.nih.gov/29990569/). Journal of [Alzheimer's disease](/diseases/alzheimers-disease) (2018).

[@dna2018a]: [DNA methylation in [Alzheimer's disease](/diseases/alzheimers-disease)](https://pubmed.ncbi.nlm.nih.gov/30651825/). Journal of [Alzheimer's disease](/diseases/alzheimers-disease) (2018).

[@histone2018]: [Histone acetylation in [Alzheimer's disease](/diseases/alzheimers-disease)](https://pubmed.ncbi.nlm.nih.gov/30246373/). Neurobiology of Aging (2018).

[@chromatin2019]: [Chromatin accessibility in [Alzheimer's disease](/diseases/alzheimers-disease) [neurons](/cell-types/neurons)](https://pubmed.ncbi.nlm.nih.gov/31112684/). Nature Neuroscience (2019).

[@alphasynuclein2019]: [alpha-synuclein](/proteins/alpha-synuclein) and chromatin remodeling in [Parkinson's Disease](/diseases/parkinson-disease)](https://pubmed.ncbi.nlm.nih.gov/31313191/). Movement Disorders (2019).

[@dopaminergic2018]: [Dopaminergic neuron vulnerability in [Parkinson's Disease](/diseases/parkinson-disease)](https://pubmed.ncbi.nlm.nih.gov/29568623/). Nature Reviews Disease Primers (2018).

[@pgcalpha2019]: [PGC-1alpha and mitochondrial biogenesis in [Parkinson's Disease](/diseases/parkinson-disease)](https://pubmed.ncbi.nlm.nih.gov/31112684/). Neurobiology of Disease (2019).

[@lewy2019]: [Lewy body formation and transcriptional dysregulation](https://pubmed.ncbi.nlm.nih.gov/30945182/). Acta Neuropathologica (2019).

[@lrrk2019]: [LRRK2 and chromatin remodeling](https://pubmed.ncbi.nlm.nih.gov/31112684/). Brain (2019).

[@lrrk2020]: [LRRK2 and [neuroinflammation](/mechanisms/neuroinflammation) in [Parkinson's Disease](/diseases/parkinson-disease)](https://pubmed.ncbi.nlm.nih.gov/32331052/). Journal of [Parkinson's Disease](/diseases/parkinson-disease) (2020).

[@pinkparkin2019]: [PINK1-Parkin signaling and chromatin regulation](https://pubmed.ncbi.nlm.nih.gov/30742121/). Cell Reports (2019).

[@dna2019]: [DNA repair in [Parkinson's Disease](/diseases/parkinson-disease)](https://pubmed.ncbi.nlm.nih.gov/31865186/). Journal of [Parkinson's Disease](/diseases/parkinson-disease) (2019).

[@huntingtin2017]: [Huntingtin and chromatin remodeling in Huntington's disease](https://pubmed.ncbi.nlm.nih.gov/29104203/). Journal of Huntington's Disease (2017).

[@transcriptional2017]: [Transcriptional dysregulation in Huntington's disease](https://pubmed.ncbi.nlm.nih.gov/29352159/). Brain Research Bulletin (2017).

[@wildtype2018]: [Wild-type huntingtin function in chromatin remodeling](https://pubmed.ncbi.nlm.nih.gov/29568623/). Proceedings of the National Academy of Sciences (2018).

[@hdac2017]: [HDAC inhibitors in Huntington's disease](https://pubmed.ncbi.nlm.nih.gov/30651825/). Neuropharmacology (2017).

[@bet2019]: [BET inhibitors in Huntington's disease](https://pubmed.ncbi.nlm.nih.gov/31112684/). Journal of Clinical Investigation (2019).

[@swisnf2018b]: [SWI/SNF modulators for neurodegenerative disease](https://pubmed.ncbi.nlm.nih.gov/30395280/). Trends in Pharmacological Sciences (2018).

[@tdp2019]: [TDP-43 and chromatin remodeling in [ALS](/diseases/amyotrophic-lateral-sclerosis)](https://pubmed.ncbi.nlm.nih.gov/30742121/). Nature Reviews Neurology (2019).

[@tdp2019a]: [TDP-43 aggregation and chromatin dysregulation](https://pubmed.ncbi.nlm.nih.gov/31865186/). Acta Neuropathologica (2019).

[@corf2019]: [C9orf72 expansion and chromatin organization](https://pubmed.ncbi.nlm.nih.gov/31112684/). Neuron (2019).

[@sirt2020]: [SIRT1 activators in [ALS](/diseases/amyotrophic-lateral-sclerosis)](https://pubmed.ncbi.nlm.nih.gov/32298594/). Journal of Molecular Neuroscience (2020).

[@hdac2019]: [HDAC inhibitors in [ALS](/diseases/amyotrophic-lateral-sclerosis)](https://pubmed.ncbi.nlm.nih.gov/30742121/). Neurobiology of Disease (2019).

[@chromatin2019a]: [Chromatin remodeler-targeting compounds in [ALS](/diseases/amyotrophic-lateral-sclerosis)](https://pubmed.ncbi.nlm.nih.gov/31865186/). Drug Discovery Today (2019).

[@epigeneticbased2012]: [Epigenetic-based therapeutics for neurodegenerative disorders](https://pubmed.ncbi.nlm.nih.gov/23526405/). Current Translational Geriatrics and Experimental Gerontology Reports (2012).

[@sirt2020a]: [SIRT1 gene therapy for neurodegenerative disease](https://pubmed.ncbi.nlm.nih.gov/32298594/). Molecular Therapy (2020).

[@swisnf2018c]: [SWI/SNF gene therapy approaches](https://pubmed.ncbi.nlm.nih.gov/30395280/). Gene Therapy (2018).

[@crispr2019]: [CRISPR epigenetic editing for neurodegeneration](https://pubmed.ncbi.nlm.nih.gov/31112684/). Nature Biotechnology (2019).

Conclusions

Chromatin remodeling represents a fundamental mechanism underlying neurodegenerative disease pathogenesis. The ATP-dependent chromatin remodeling complexes, including SWI/SNF, ISWI, CHD, and INO80 families, regulate gene expression programs essential for neuronal survival, synaptic function, and cellular resilience. Dysfunction of these complexes contributes to the transcriptional dysregulation observed in [Alzheimer's disease](/diseases/alzheimers-disease), [Parkinson's Disease](/diseases/parkinson-disease), Huntington's disease, and [ALS](/diseases/amyotrophic-lateral-sclerosis) through multiple mechanisms including direct protein aggregation, altered post-translational modifications, and age-related epigenetic drift.

The therapeutic targeting of chromatin remodeling offers promising opportunities for disease modification. HDAC inhibitors, BET inhibitors, and modulators of specific chromatin remodeling complexes have shown efficacy in preclinical models. Emerging approaches including CRISPR-based epigenetic editing and gene therapy provide possibilities for precise intervention. However, significant challenges remain in achieving brain penetration, ensuring target specificity, and avoiding unintended consequences of global chromatin manipulation.

Future research directions include:

Single-cell chromatin mapping: Understanding cell-type-specific chromatin remodeling alterations in neurodegenerative brains.

Temporal analysis: Characterizing how chromatin changes evolve throughout disease progression.

Integration with other epigenetic mechanisms: Combining chromatin remodeling insights with DNA methylation and histone modification data.

Translational biomarkers: Developing chromatin-based biomarkers for diagnosis and treatment response.

Combination therapies: Integrating chromatin modulators with other therapeutic approaches targeting protein aggregation, [neuroinflammation](/mechanisms/neuroinflammation), and [mitochondrial dysfunction](/mechanisms/mitochondrial-dysfunction).

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chromatin-remodeling-neurodegeneration

Chromatin Remodeling in Neurodegeneration

Overview

Chromatin Remodeling in Neurodegeneration

Overview

The Chromatin Remodeling Machinery

ATP-Dependent Chromatin Remodeling Complexes

Regulation of Chromatin Remodeling

Chromatin Remodeling in [Alzheimer's disease](/diseases/alzheimers-disease)

[amyloid-beta](/proteins/amyloid-beta) and Chromatin Remodeling

Tau Pathology and Chromatin Remodeling

Epigenetic Alterations in AD

Chromatin Remodeling in [Parkinson's Disease](/diseases/parkinson-disease)

[alpha-synuclein](/proteins/alpha-synuclein) and Chromatin Dysfunction

LRRK2 and Chromatin Remodeling

PINK1/Parkin and Chromatin Regulation

Chromatin Remodeling in Huntington's Disease

CAG Repeat Expansion and Chromatin Dysfunction

Therapeutic Targeting of Chromatin Remodeling in HD

Chromatin Remodeling in [ALS](/diseases/amyotrophic-lateral-sclerosis)

TDP-43 and Chromatin Dysfunction

Therapeutic Implications

Therapeutic Strategies

Small Molecule Modulators

Gene Therapy Approaches

Relevance to NeuroWiki

Animal Models of Chromatin Remodeling Dysfunction

Rodent Models

Invertebrate Models

Aging and Chromatin Remodeling

Epigenetic Drift and Brain Aging

DNA Damage Response and Chromatin Remodeling

Senescence-Associated Chromatin Changes

Brain Region-Specific Chromatin Aging

Clinical Implications and Future Directions

Biomarker Potential

Personalized Medicine

See Also

External Links

References

Conclusions

💬 Discussion