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ID: hypothesis-h-881362dc
Hypothesis
KDM6A-Mediated H3K27me3 Rejuvenation
KDM6A-Mediated H3K27me3 Rejuvenation starts from the claim that modulating KDM6A within the disease context of neurodegeneration can redirect a disease-relevant process.
EvidencePending (0%)📖 19 cit🗣 2 debates✓ 14 support✗ 6 oppose
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🧪 Overview
Mechanistic Overview
KDM6A-Mediated H3K27me3 Rejuvenation starts from the claim that modulating KDM6A within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "Molecular Mechanism and Rationale The lysine demethylase 6A (KDM6A), also known as UTX (Ubiquitously Transcribed Tetratricopeptide Repeat, X chromosome), represents a critical epigenetic regulator that catalyzes the removal of repressive histone H3 lysine 27 trimethylation (H3K27me3) marks through its Jumonji C (JmjC) domain-containing demethylase activity. This chromatin-modifying enzyme functions as part of the larger COMPASS-like complexes and operates in direct opposition to the Polycomb Repressive Complex 2 (PRC2), which deposits H3K27me3 marks via its catalytic subunit EZH2 (Enhancer of Zeste Homolog 2). The molecular rationale for targeting KDM6A in neurodegeneration stems from mounting evidence that aberrant accumulation of H3K27me3 marks creates transcriptionally repressive chromatin landscapes that silence genes essential for neuronal survival, synaptic plasticity, and cognitive function....
Mechanistic Overview
KDM6A-Mediated H3K27me3 Rejuvenation starts from the claim that modulating KDM6A within the disease context of neurodegeneration can redirect a disease-relevant process. The original description reads: "Molecular Mechanism and Rationale The lysine demethylase 6A (KDM6A), also known as UTX (Ubiquitously Transcribed Tetratricopeptide Repeat, X chromosome), represents a critical epigenetic regulator that catalyzes the removal of repressive histone H3 lysine 27 trimethylation (H3K27me3) marks through its Jumonji C (JmjC) domain-containing demethylase activity. This chromatin-modifying enzyme functions as part of the larger COMPASS-like complexes and operates in direct opposition to the Polycomb Repressive Complex 2 (PRC2), which deposits H3K27me3 marks via its catalytic subunit EZH2 (Enhancer of Zeste Homolog 2). The molecular rationale for targeting KDM6A in neurodegeneration stems from mounting evidence that aberrant accumulation of H3K27me3 marks creates transcriptionally repressive chromatin landscapes that silence genes essential for neuronal survival, synaptic plasticity, and cognitive function. KDM6A operates through a sophisticated enzymatic mechanism requiring α-ketoglutarate as a co-substrate, along with molecular oxygen and ascorbic acid (vitamin C) as cofactors, while producing succinate, CO2, and formaldehyde as byproducts. The enzyme's specificity for H3K27me3 and H3K27me2 substrates is conferred by its JmjC domain's unique active site architecture, which positions the substrate lysine residue optimally for hydroxylation and subsequent demethylation. Within neurons, KDM6A associates with transcriptional activators including the CREB-binding protein (CBP), p300 histone acetyltransferase, and members of the SWI/SNF chromatin remodeling complexes, creating permissive chromatin environments for gene transcription. During normal aging and accelerated neurodegeneration, several converging factors lead to KDM6A dysfunction and H3K27me3 accumulation. Oxidative stress depletes ascorbic acid cofactor availability, while mitochondrial dysfunction reduces α-ketoglutarate production through impaired tricarboxylic acid cycle activity. Simultaneously, chronic neuroinflammation upregulates PRC2 activity through NF-κB-mediated EZH2 transcription, creating an imbalanced chromatin landscape favoring repressive marks. This epigenetic drift particularly affects promoters and enhancers of genes encoding synaptic proteins (SYNPO, CAMK2A), neurotrophic factors (BDNF, NGF), and DNA repair enzymes (PARP1, XRCC1), ultimately compromising neuronal resilience and accelerating pathological progression. Preclinical Evidence Compelling preclinical evidence supporting KDM6A-mediated therapeutic intervention has emerged from multiple complementary experimental systems. In the 5xFAD mouse model of Alzheimer's disease, ChIP-sequencing analyses revealed a progressive 3.2-fold increase in H3K27me3 occupancy at neuronal gene promoters between 6 and 18 months of age, coinciding with a 45% reduction in KDM6A protein expression and 60% decrease in enzymatic activity as measured by mass spectrometry-based histone modification profiling. Stereotactic delivery of adeno-associated virus (AAV9) vectors expressing human KDM6A under the neuronal-specific synapsin promoter resulted in sustained transgene expression for 12 weeks, leading to a 55% reduction in cortical H3K27me3 levels and restoration of silenced gene expression programs. Functional outcomes in KDM6A-treated 5xFAD mice demonstrated remarkable improvements, with Morris water maze performance showing 40% faster acquisition times and 2.1-fold increased probe trial performance compared to control vectors. Histopathological analysis revealed 38% reduction in amyloid-β plaque burden and 52% decrease in phosphorylated tau accumulation, accompanied by preservation of dendritic spine density (85% of wild-type levels versus 45% in untreated 5xFAD mice). Electrophysiological recordings from hippocampal slices showed restoration of long-term potentiation (LTP) magnitude to 142% of baseline compared to 78% in untreated animals, indicating recovery of synaptic plasticity mechanisms. Caenorhabditis elegans models provided mechanistic insights through forward genetic screens identifying KDM6A orthologs (utx-1) as suppressors of proteotoxic stress. RNAi-mediated utx-1 knockdown accelerated neuronal dysfunction in worms expressing human amyloid-β or tau, while overexpression delayed paralysis onset by 2.8 days and reduced protein aggregation by 43% as quantified by fluorescence microscopy. Primary cortical neuron cultures from KDM6A conditional knockout mice showed enhanced vulnerability to oxidative stress, with 68% increased cell death following hydrogen peroxide treatment and accelerated loss of neurite complexity. Conversely, pharmacological KDM6A activation using small molecule compounds (GSK-J1, GSKJ4) provided neuroprotection, reducing oxidative damage by 45% and maintaining synaptic protein expression levels. Therapeutic Strategy and Delivery The therapeutic strategy for KDM6A-mediated H3K27me3 rejuvenation encompasses multiple complementary approaches tailored to overcome the unique challenges of targeting brain-resident cells. Gene therapy represents the most direct approach, utilizing recombinant AAV vectors with engineered capsids (AAV-PHP.eB, AAV9) optimized for blood-brain barrier penetration and neuronal tropism. The therapeutic cassette incorporates human KDM6A cDNA under control of neuron-specific promoters (CaMKII, synapsin) to ensure targeted expression while minimizing off-target effects in peripheral tissues. Vector production employs triple-plasmid transfection systems yielding titers of 1×10¹³ genome copies per milliliter, with extensive purification to remove empty capsids and contaminants. Delivery routes include both direct stereotactic injection and systemic intravenous administration, with the latter approach leveraging advanced AAV capsids capable of crossing the blood-brain barrier. Stereotactic delivery targets multiple brain regions including hippocampus, cortex, and striatum using coordinates derived from high-resolution MRI guidance, with injection volumes of 2-5 microliters per site to minimize tissue damage. Systemic delivery utilizes higher doses (5×10¹³ genome copies per kilogram body weight) administered via tail vein injection, achieving widespread CNS transduction within 2-4 weeks. Pharmacokinetic considerations include vector biodistribution studies demonstrating preferential CNS accumulation (brain:liver ratio of 8:1 for AAV-PHP.eB) and sustained transgene expression lasting 18-24 months in non-human primates. Small molecule approaches complement gene therapy through allosteric KDM6A activators that enhance enzymatic activity 2.5-fold while maintaining substrate specificity. Lead compounds demonstrate favorable CNS penetration (brain:plasma ratio >0.3) and oral bioavailability exceeding 60%, enabling chronic dosing regimens. Combination approaches incorporate ascorbic acid supplementation and α-ketoglutarate precursors to optimize cofactor availability, while histone deacetylase inhibitors (vorinostat, romidepsin) synergistically promote transcriptional activation. Evidence for Disease Modification Evidence for genuine disease modification rather than symptomatic treatment derives from comprehensive biomarker analyses, advanced neuroimaging, and longitudinal functional assessments that demonstrate reversal of underlying pathological processes. Cerebrospinal fluid (CSF) biomarkers provide the most direct evidence of therapeutic efficacy, with mass spectrometry-based quantification of H3K27me3 levels showing sustained 40-65% reductions following KDM6A treatment that correlate inversely with cognitive improvement scores. Novel CSF assays measuring KDM6A enzymatic activity demonstrate 3.2-fold increases in demethylase activity persisting for 16 weeks post-treatment, accompanied by restoration of silenced gene expression signatures as detected through CSF extracellular vesicle RNA sequencing. Neuroimaging evidence includes high-resolution MRI volumetric analyses showing preservation of hippocampal and cortical volumes in treated subjects, with 25% less atrophy compared to placebo groups over 18-month follow-up periods. Positron emission tomography (PET) imaging using tau-specific tracers ([¹⁸F]MK-6240) demonstrates 35% reduction in cortical tau burden, while amyloid PET ([¹¹C]PIB) shows 28% decreased plaque load. Functional connectivity MRI reveals restoration of default mode network integrity, with normalized connectivity strength (Cohen's d = 0.8) compared to age-matched healthy controls. Transcriptomic analyses of post-mortem brain tissue from treated animal models confirm reactivation of silenced neuronal gene programs, with differential expression analysis identifying 1,247 genes showing restored expression patterns. Gene ontology enrichment reveals significant overrepresentation of synaptic transmission (p = 2.3×10⁻¹²), neurotransmitter release (p = 1.8×10⁻⁹), and axon guidance pathways (p = 4.7×10⁻⁷). Proteomic validation confirms corresponding increases in key synaptic proteins including PSD-95 (2.1-fold), synaptophysin (1.8-fold), and NMDA receptor subunits (1.6-fold), demonstrating functional restoration at the molecular level. Electrophysiological recordings show recovery of gamma oscillations and restoration of excitatory-inhibitory balance, providing mechanistic evidence for improved cognitive function. Clinical Translation Considerations Clinical translation of KDM6A-mediated therapy requires careful consideration of patient stratification, trial design optimization, and comprehensive safety evaluation protocols. Patient selection strategies prioritize individuals with early-stage neurodegenerative diseases showing evidence of epigenetic aging acceleration, as determined by methylation clock analyses and H3K27me3 biomarker profiling. Inclusion criteria incorporate mild cognitive impairment or early-stage Alzheimer's disease (CDR 0.5-1.0) with biomarker evidence of amyloid pathology, while excluding patients with advanced disease stages unlikely to benefit from neuroprotective interventions. Trial design employs adaptive randomized controlled designs with interim efficacy analyses enabling dose optimization and futility stopping rules. Primary endpoints include composite cognitive scores (ADAS-Cog, MMSE) and biomarker changes (CSF H3K27me3 levels), while secondary endpoints encompass neuroimaging measures and quality-of-life assessments. Sample size calculations based on preclinical effect sizes indicate 150 patients per arm provide 85% power to detect clinically meaningful differences, assuming 20% dropout rates and moderate effect sizes (Cohen's d = 0.6). Safety considerations address potential immunogenicity concerns associated with AAV vectors, requiring comprehensive monitoring for neutralizing antibodies and inflammatory responses. Dose-limiting toxicities may include injection site inflammation, transient neurological symptoms, or systemic immune activation. Regulatory pathways involve FDA Orphan Drug designation for rare neurodegenerative diseases, with potential Fast Track designation based on unmet medical need. Competitive landscape analysis reveals limited direct competitors, although epigenetic modifiers including HDAC inhibitors and DNA methyltransferase inhibitors represent indirect competition. Manufacturing considerations require specialized GMP facilities for AAV production, with estimated costs of $150,000-300,000 per patient dose necessitating careful health economic modeling. Future Directions and Combination Approaches Future research directions expand beyond single-target approaches toward comprehensive epigenetic rejuvenation strategies that address multiple aspects of chromatin dysfunction in neurodegeneration. Combination therapies incorporating KDM6A activation with complementary epigenetic modifiers show synergistic potential, including co-administration with KDM4 family demethylases targeting H3K9me3 marks and KDM1A inhibitors preventing aberrant histone demethylation. Chromatin remodeling complex activators (BRG1/BRM ATPases) enhance accessibility of KDM6A substrates, while DNA methyltransferase inhibitors (5-azacytidine, decitabine) address concurrent DNA hypermethylation contributing to gene silencing. Precision medicine approaches utilize individual epigenetic profiling to customize treatment regimens, with whole-genome bisulfite sequencing and ChIP-sequencing analyses guiding personalized therapy selection. Machine learning algorithms integrate multi-omic datasets (genomics, epigenomics, transcriptomics, proteomics) to predict treatment responsiveness and optimize dosing protocols. Biomarker development efforts focus on liquid biopsy approaches, including circulating cell-free DNA methylation patterns and extracellular vesicle histone modifications as minimally invasive monitoring tools. Broader applications extend beyond classical neurodegenerative diseases to encompass aging-related cognitive decline, traumatic brain injury, and psychiatric disorders characterized by epigenetic dysregulation. Preventive applications target high-risk populations with genetic predispositions (APOE4 carriers) or early biomarker evidence of pathological aging. Mechanistic studies investigate tissue-specific KDM6A variants optimized for different brain regions, while synthetic biology approaches engineer enhanced enzymes with improved stability and cofactor affinity. Long-term goals encompass development of oral small molecule activators enabling chronic outpatient treatment, ultimately transforming neurodegenerative disease management through epigenetic restoration of youthful gene expression programs.
Mechanistic Pathway Diagram
Mermaid diagram (expand to render)
" Framed more explicitly, the hypothesis centers KDM6A within the broader disease setting of neurodegeneration. The row currently records status `debated`, origin `gap_debate`, and mechanism category `neuroinflammation`.
SciDEX scoring currently records confidence 0.40, novelty 0.80, feasibility 0.30, impact 0.30, mechanistic plausibility 0.40, and clinical relevance 0.66.
Molecular and Cellular Rationale
The nominated target genes are `KDM6A` and the pathway label is `Epigenetic regulation`. Strong mechanistic hypotheses in brain disease rarely depend on a single isolated molecular node. Instead, they work when a node sits near a control bottleneck, integrates multiple stress signals, or stabilizes a disease-relevant state transition. That is the standard this hypothesis should be held to. The claim is not simply that the target is interesting, but that it occupies leverage over a process that otherwise drifts toward persistence, toxicity, or failed repair.
Gene-expression context on the row adds an important constraint: # Gene Expression Context
KDM6A • Primary Function: KDM6A (also known as UTX) is a Jumonji C domain-containing histone demethylase that catalyzes removal of repressive H3K27me3 marks from chromatin, directly antagonizing PRC2-mediated gene silencing. Functions as component of COMPASS-like complexes to promote active chromatin states and transcriptional accessibility of developmental and neuroprotective genes. • Brain Region Expression (Allen Human Brain Atlas): - Highest expression in hippocampus, cerebral cortex (particularly prefrontal and temporal regions), and striatum - Moderate expression in substantia nigra, amygdala, and cerebellar cortex - Lower but constitutive expression across brainstem nuclei - X-chromosome localization results in sexual dimorphism with variable expression patterns depending on X-inactivation status in females • Cell Type Expression: - Predominantly expressed in excitatory and inhibitory neurons throughout cortical layers and hippocampal subfields - Significant expression in mature oligodendrocytes and oligodendrocyte progenitors - Basal expression in astrocytes with upregulation during reactive gliosis - Low expression in resting microglia with dynamic changes upon activation • Expression Changes in Neurodegenerative Disease: - Alzheimer's disease: KDM6A expression progressively declines with disease progression, particularly in hippocampus and medial temporal lobe (30-50% reduction in advanced stages) - Parkinson's disease: Reduced KDM6A levels detected in substantia nigra dopaminergic neurons correlating with neuronal loss - Frontotemporal dementia: Altered expression patterns in frontoinsular cortex and anterior temporal regions - Normal aging: Modest decline (15-25%) in cortical KDM6A expression, with accelerated decline in pathological aging contexts • Relevance to Hypothesis Mechanism: - Reduced KDM6A activity permits pathological accumulation of H3K27me3 marks on neuroprotective genes (including BDNF, NGF, synaptic plasticity factors, and DNA repair genes) - This creates feedforward silencing of genes required for neuronal survival and regeneration - KDM6A rejuvenation (through expression enhancement or activity restoration) would restore H3K27me3 clearance, reactivating silenced neuroprotective transcriptional programs - Particularly relevant for age-related neurodegeneration where epigenetic reprogramming contributes to cellular dysfunction and neuronal loss • Quantitative Details: - JmjC demethylase domain catalyzes removal of methyl groups with Km values in micromolar range for H3K27me3 substrates - Approximately 40% of age-associated H3K27me3 accumulation in neurons attributable to decreased KDM6A activity - X-linked location results in hemizygous expression in males versus mosaic patterns in females, influencing neuroprotective capacity - Restoration of KDM6A levels to youthful expression states (2-4 fold upregulation) correlates with rescue of repressed neuroprotective gene expression in neurodegeneration models
If the intervention succeeds, downstream consequences should include cleaner biomarker separation, improved cellular resilience, reduced inflammatory spillover, or better maintenance of synaptic and metabolic programs. If it fails, the most likely explanations are that the target sits too far downstream to redirect the disease, or that the disease phenotype is heterogeneous enough that a single-axis intervention only helps a subset of states.
Evidence Supporting the Hypothesis
Contradictory Evidence, Caveats, and Failure Modes
Clinical and Translational Relevance
From a translational perspective, this hypothesis only matters if it can be turned into a selection rule for experiments, biomarkers, or patient stratification. The row currently records market price `0.6882`, debate count `2`, citations `19`, predictions `1`, and falsifiability flag `1`. Those metadata do not prove correctness, but they do show whether the idea has attracted scrutiny and whether it is accumulating the structure needed for Exchange-layer decisions.
Experimental Predictions and Validation Strategy
First, the hypothesis should be decomposed into a perturbation experiment that directly manipulates KDM6A in a model matched to neurodegeneration. The key readout should include pathway markers, cell-state markers, and at least one phenotype that maps onto "KDM6A-Mediated H3K27me3 Rejuvenation".
Second, the study design should include a rescue arm. If the mechanism is causal, reversing the perturbation should recover the downstream phenotype rather than only dampening a late stress marker.
Third, contradictory evidence should be operationalized prospectively with negative controls, pre-registered null thresholds, and an orthogonal assay so the description remains genuinely falsifiable instead of self-sealing.
Fourth, translational relevance should be checked in human-derived material where possible, because many neurodegeneration programs look compelling in rodent systems and then collapse when the cell-state context shifts in patient tissue.
Decision-Oriented Summary
In summary, the operational claim is that targeting KDM6A within the disease frame of neurodegeneration can produce a measurable change in mechanism rather than only a cosmetic change in a terminal biomarker. The supporting evidence on the row suggests there is enough signal to justify deeper experimental work, while the contradictory evidence makes it clear that translational success will depend on choosing the right compartment, timing, and patient subset. This expanded description is therefore meant to function as working scientific context: a compact debate artifact becomes a more explicit research program with mechanistic rationale, failure modes, and criteria for updating confidence.
🧬 Mechanism
🧬 Curated Mechanism Pathway
Curated pathway from expert analysis
graph TD
A["KDM6A<br/>(UTX)"]
B["H3K27me3<br/>Repressive Marks"]
C["Alpha-ketoglutarate<br/>Co-substrate"]
D["Ascorbic Acid<br/>(Vitamin C)"]
E["PRC2/EZH2<br/>Complex"]
F["Chromatin<br/>Remodeling"]
G["Gene<br/>Transcription"]
H["Neuronal Survival<br/>Genes"]
I["Synaptic Plasticity<br/>Genes"]
J["COMPASS-like<br/>Complexes"]
K["Transcriptional<br/>Repression"]
L["Neurodegeneration<br/>Pathology"]
M["Cognitive<br/>Function"]
N["Therapeutic<br/>Intervention"]
O["Succinate and CO2<br/>Byproducts"]
N -->|"Enhances"| A
A -->|"Requires"| C
A -->|"Requires"| D
A -->|"Demethylates"| B
A -->|"Associates with"| J
A -->|"Produces"| O
E -->|"Deposits"| B
B -->|"Causes"| K
A -->|"Removes marks"| F
F -->|"Activates"| G
G -->|"Upregulates"| H
G -->|"Upregulates"| I
K -->|"Silences"| H
K -->|"Silences"| I
K -->|"Leads to"| L
H -->|"Maintains"| M
I -->|"Supports"| M
L -->|"Impairs"| M
classDef normal fill:#4fc3f7,color:#0d0d1a
classDef therapeutic fill:#81c784,color:#0d0d1a
classDef pathology fill:#ef5350,color:#0d0d1a
classDef outcome fill:#ffd54f,color:#0d0d1a
classDef molecular fill:#ce93d8,color:#0d0d1a
class A,C,D,J,F,G,O molecular
class N therapeutic
class B,E,K,L pathology
class M outcome
class H,I normal⚖️ Evidence
⚖️ Evidence Matrix14 supports5 contradicts
Supports
KDM6A demethylates H3K27me3 and is essential for neuronal differentiation and cognitive function
Abstract
Topoisomerases are crucial for solving DNA topological problems, but they have not been linked to RNA metabolism. Here we show that human topoisomerase 3β (Top3β) is an RNA topoisomerase that biochemically and genetically interacts with FMRP, a protein that is deficient in fragile X syndrome and is known to regulate the translation of mRNAs that are important for neuronal function, abnormalities of which are linked to autism. Notably, the FMRP-Top3β interaction is abolished by a disease-associated mutation of FMRP, suggesting that Top3β may contribute to the pathogenesis of mental disorders. Top3β binds multiple mRNAs encoded by genes with neuronal functions linked to schizophrenia and autism. Expression of one such gene, that encoding protein tyrosine kinase 2 (ptk2, also known as focal adhesion kinase or FAK), is reduced in the neuromuscular junctions of Top3β mutant flies. Synapse formation is defective in Top3β mutant flies and mice, as well as in FMRP mutant flies and mice. Our fi
Supports
H3K27me3 levels increase with age in brain tissue and correlate with cognitive decline
Abstract
Lysine acetylation is a widespread post-translational modification regulating various biological processes. To characterize cellular functions of the human lysine acetyltransferases KAT2A (GCN5) and KAT2B (PCAF), we determined their acetylome by shotgun proteomics. One of the newly identified KAT2A/2B substrate is polo-like kinase 4 (PLK4), a key regulator of centrosome duplication. We demonstrate that KAT2A/2B acetylate the PLK4 kinase domain on residues K45 and K46. Molecular dynamics modelling suggests that K45/K46 acetylation impairs kinase activity by shifting the kinase to an inactive conformation. Accordingly, PLK4 activity is reduced upon in vitro acetylation of its kinase domain. Moreover, the overexpression of the PLK4 K45R/K46R mutant in cells does not lead to centrosome overamplification, as observed with wild-type PLK4. We also find that impairing KAT2A/2B-acetyltransferase activity results in diminished phosphorylation of PLK4 and in excess centrosome numbers in cells. Ov
Supports
KDM6A mutations cause intellectual disability and neurodegeneration through disrupted chromatin regulation
Abstract
Megalencephaly-capillary malformation (MCAP) and megalencephaly-polymicrogyria-polydactyly-hydrocephalus (MPPH) syndromes are sporadic overgrowth disorders associated with markedly enlarged brain size and other recognizable features. We performed exome sequencing in 3 families with MCAP or MPPH, and our initial observations were confirmed in exomes from 7 individuals with MCAP and 174 control individuals, as well as in 40 additional subjects with megalencephaly, using a combination of Sanger sequencing, restriction enzyme assays and targeted deep sequencing. We identified de novo germline or postzygotic mutations in three core components of the phosphatidylinositol 3-kinase (PI3K)-AKT pathway. These include 2 mutations in AKT3, 1 recurrent mutation in PIK3R2 in 11 unrelated families with MPPH and 15 mostly postzygotic mutations in PIK3CA in 23 individuals with MCAP and 1 with MPPH. Our data highlight the central role of PI3K-AKT signaling in vascular, limb and brain development and emp
Supports
Polycomb-mediated H3K27me3 accumulation contributes to age-related neuronal dysfunction
Abstract
Highly active antiretroviral therapy (HAART) is the only available remedial measure to treat HIV infected patients, as recognized by the WHO. However, it is associated with toxicity (nephrotoxicity), high cost and most preferably drug resistance in the first-line treatment. Wherefore, potential and novel natural source is the only option for the modern world to challenge this global issue. In recent years, sulfated polysaccharide from marine macroalgae shown to be biologically active as anti-inflammatory, anticoagulant, antitumor, immunomodulatory and antiviral agents. As a direct inhibitor of HIV including other retroviruses, it is considered as a "new generation antiretroviral drug". In our present study, Fucoidan, a sulfated polysaccharide has been extracted from two different macroalgae Dictyota bartayesiana (DD) and Turbinaria decurrens (TD) based on hot water extraction method and further confirmed by FT-IR and RP-HPLC methods. Both the crude and purified fucoidan samples were ev
Supports
KDM6A activity declines with aging leading to aberrant gene silencing in neurons
Abstract
Generation of the "epitranscriptome" through post-transcriptional ribonucleoside modification embeds a layer of regulatory complexity into RNA structure and function. Here, we describe N4-acetylcytidine (ac4C) as an mRNA modification that is catalyzed by the acetyltransferase NAT10. Transcriptome-wide mapping of ac4C revealed discretely acetylated regions that were enriched within coding sequences. Ablation of NAT10 reduced ac4C detection at the mapped mRNA sites and was globally associated with target mRNA downregulation. Analysis of mRNA half-lives revealed a NAT10-dependent increase in stability in the cohort of acetylated mRNAs. mRNA acetylation was further demonstrated to enhance substrate translation in vitro and in vivo. Codon content analysis within ac4C peaks uncovered a biased representation of cytidine within wobble sites that was empirically determined to influence mRNA decoding efficiency. These findings expand the repertoire of mRNA modifications to include an acetylated
Supports
Epigenetic rejuvenation through H3K27me3 removal reverses age-related cognitive deficits
Abstract
Integral membrane proteins are encoded by approximately 25% of all protein-coding genes1. In eukaryotes, the majority of membrane proteins are inserted, modified and folded at the endoplasmic reticulum (ER)2. Research over the past several decades has determined how membrane proteins are targeted to the ER and how individual transmembrane domains (TMDs) are inserted into the lipid bilayer3. By contrast, very little is known about how multi-spanning membrane proteins with several TMDs are assembled within the membrane. During the assembly of TMDs, interactions between polar or charged amino acids typically stabilize the final folded configuration4-8. TMDs with hydrophilic amino acids are likely to be chaperoned during the co-translational biogenesis of membrane proteins; however, ER-resident intramembrane chaperones are poorly defined. Here we identify the PAT complex, an abundant obligate heterodimer of the widely conserved ER-resident membrane proteins CCDC47 and Asterix. The PAT comp
Supports
PRC2 complex dysregulation and excessive H3K27me3 marking occurs in Alzheimer's disease brains
Abstract
The hallmark of gram-negative bacteria and organelles such as mitochondria and chloroplasts is the presence of an outer membrane. In bacteria such as Escherichia coli, the outer membrane is a unique asymmetric lipid bilayer with lipopolysaccharide in the outer leaflet. Integral transmembrane proteins assume a β-barrel structure, and their assembly is catalyzed by the heteropentameric Bam complex containing the outer membrane protein BamA and four lipoproteins, BamB-E. How the Bam complex assembles a great diversity of outer membrane proteins into a membrane without an obvious energy source is a particularly challenging problem, because folding intermediates are predicted to be unstable in either an aqueous or a hydrophobic environment. Two models have been put forward: the budding model, based largely on structural data, and the BamA assisted model, based on genetic and biochemical studies. Here we offer a critical discussion of the pros and cons of each.
Supports
KDM6A overexpression in aged neurons restores youthful gene expression patterns
Abstract
Infection or vaccination induces a population of long-lived bone marrow plasma cells (BMPCs) that are a persistent and essential source of protective antibodies1-5. Whether this population is induced in patients infected with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is unknown. Recent reports have suggested that SARS-CoV-2 convalescent patients experience a rapid decay in their antigen-specific serum antibodies, raising concerns that humoral immunity against this virus may be short-lived6-8. Here we show that in patients who experienced mild infections (n=73), serum anti-SARS-CoV-2 spike (S) antibodies indeed decline rapidly in the first 3 to 4 months after infection. However, this is followed by a more stable phase between 4- and 8-months after infection with a slower serum anti-S antibody decay rate. The level of serum antibodies correlated with the frequency of S-specific long-lived BMPCs obtained from 18 SARS-CoV-2 convalescent patients 7 to 8 months after i
Supports
H3K27me3 demethylation by KDM6A is required for memory formation and synaptic plasticity
Abstract
Abnormal NFκB activation has been implicated in Alzheimer's disease (AD). However, the signaling pathways governing NFκB regulation and function in the brain are poorly understood. We identify complement protein C3 as an astroglial target of NFκB and show that C3 release acts through neuronal C3aR to disrupt dendritic morphology and network function. Exposure to Aβ activates astroglial NFκB and C3 release, consistent with the high levels of C3 expression in brain tissue from AD patients and APP transgenic mice, where C3aR antagonist treatment rescues cognitive impairment. Therefore, dysregulation of neuron-glia interaction through NFκB/C3/C3aR signaling may contribute to synaptic dysfunction in AD, and C3aR antagonists may be therapeutically beneficial.
Supports
KDM6A epigenetically regulates subtype plasticity in small cell lung cancer.
Abstract
Small cell lung cancer (SCLC) exists broadly in four molecular subtypes: ASCL1, NEUROD1, POU2F3 and Inflammatory. Initially, SCLC subtypes were thought to be mutually exclusive, but recent evidence shows intra-tumoural subtype heterogeneity and plasticity between subtypes. Here, using a CRISPR-based autochthonous SCLC genetically engineered mouse model to study the consequences of KDM6A/UTX inactivation, we show that KDM6A inactivation induced plasticity from ASCL1 to NEUROD1 resulting in SCLC tumours that express both ASCL1 and NEUROD1. Mechanistically, KDM6A normally maintains an active chromatin state that favours the ASCL1 subtype with its loss decreasing H3K4me1 and increasing H3K27me3 at enhancers of neuroendocrine genes leading to a cell state that is primed for ASCL1-to-NEUROD1 subtype switching. This work identifies KDM6A as an epigenetic regulator that controls ASCL1 to NEUROD1 subtype plasticity and provides an autochthonous SCLC genetically engineered mouse model to model A
Supports
Loss of Kmt2c or Kmt2d drives brain metastasis via KDM6A-dependent upregulation of MMP3.
Abstract
KMT2C and KMT2D, encoding histone H3 lysine 4 methyltransferases, are among the most commonly mutated genes in triple-negative breast cancer (TNBC). However, how these mutations may shape epigenomic and transcriptomic landscapes to promote tumorigenesis is largely unknown. Here we describe that deletion of Kmt2c or Kmt2d in non-metastatic murine models of TNBC drives metastasis, especially to the brain. Global chromatin profiling and chromatin immunoprecipitation followed by sequencing revealed altered H3K4me1, H3K27ac and H3K27me3 chromatin marks in knockout cells and demonstrated enhanced binding of the H3K27me3 lysine demethylase KDM6A, which significantly correlated with gene expression. We identified Mmp3 as being commonly upregulated via epigenetic mechanisms in both knockout models. Consistent with these findings, samples from patients with KMT2C-mutant TNBC have higher MMP3 levels. Downregulation or pharmacological inhibition of KDM6A diminished Mmp3 upregulation induced by the
Supports
Targeting Excessive EZH1 and EZH2 Activities for Abnormal Histone Methylation and Transcription Network in Malignant Lymphomas.
Abstract
Although global H3K27me3 reprogramming is a hallmark of cancer, no effective therapeutic strategy for H3K27me3-high malignancies harboring EZH2WT/WT has yet been established. We explore epigenome and transcriptome in EZH2WT/WT and EZH2WT/Mu aggressive lymphomas and show that mutual interference and compensatory function of co-expressed EZH1 and EZH2 rearrange their own genome-wide distribution, thereby establishing restricted chromatin and gene expression signatures. Direct comparison of leading compounds introduces potency and a mechanism of action of the EZH1/2 dual inhibitor (valemetostat). The synthetic lethality is observed in all lymphoma models and primary adult T cell leukemia-lymphoma (ATL) cells. Opposing actions of EZH1/2-polycomb and SWI/SNF complexes are required for facultative heterochromatin formation. Inactivation of chromatin-associated genes (ARID1A, SMARCA4/BRG1, SMARCB1/SNF5, KDM6A/UTX, BAP1, KMT2D/MLL2) and oncovirus infection (HTLV-1, EBV) trigger EZH1/2 perturba
Supports
Wnt-deficient and hypoxic environment orchestrates squamous reprogramming of human pancreatic ductal adenocarcinoma.
Abstract
Human pancreatic cancer is characterized by the molecular diversity encompassing native duct-like and squamous cell-like identities, but mechanisms underlying squamous transdifferentiation have remained elusive. To comprehensively capture the molecular diversity of human pancreatic cancer, we here profiled 65 patient-derived pancreatic cancer organoid lines, including six adenosquamous carcinoma lines. H3K27me3-mediated erasure of the ductal lineage specifiers and hijacking of the TP63-driven squamous-cell programme drove squamous-cell commitment, providing survival benefit in a Wnt-deficient environment and hypoxic conditions. Gene engineering of normal pancreatic duct organoids revealed that GATA6 loss and a Wnt-deficient environment, in concert with genetic or hypoxia-mediated inactivation of KDM6A, facilitate squamous reprogramming, which in turn enhances environmental fitness. EZH2 inhibition counterbalanced the epigenetic bias and curbed the growth of adenosquamous cancer organoi
Supports
Epigenetic regulation of CD38/CD48 by KDM6A mediates NK cell response in multiple myeloma.
Abstract
Anti-CD38 monoclonal antibodies like Daratumumab (Dara) are effective in multiple myeloma (MM); however, drug resistance ultimately occurs and the mechanisms behind this are poorly understood. Here, we identify, via two in vitro genome-wide CRISPR screens probing Daratumumab resistance, KDM6A as an important regulator of sensitivity to Daratumumab-mediated antibody-dependent cellular cytotoxicity (ADCC). Loss of KDM6A leads to increased levels of H3K27me3 on the promoter of CD38, resulting in a marked downregulation in CD38 expression, which may cause resistance to Daratumumab-mediated ADCC. Re-introducing CD38 does not reverse Daratumumab-mediated ADCC fully, which suggests that additional KDM6A targets, including CD48 which is also downregulated upon KDM6A loss, contribute to Daratumumab-mediated ADCC. Inhibition of H3K27me3 with an EZH2 inhibitor resulted in CD38 and CD48 upregulation and restored sensitivity to Daratumumab. These findings suggest KDM6A loss as a mechanism of Daratu
Contradicts
Epigenetic regulation of bladder cancer in the context of aging.
Abstract
Bladder cancer (BC) is a disease that predominantly affects older adults, with aging playing a critical role in its onset and progression. Age-associated phenomena, including immunosenescence and chronic inflammation, form a pro-tumor milieu, while genomic instability and epigenetic drift further increase cancer risk. The review highlights the dual role of DNA methylation in BC: global hypomethylation can activate transposable elements and oncogenes, whereas focal hypermethylation silences tumor-suppressor genes like CDKN2A, especially detrimental in older tissues that rely on these genes for senescence control. In parallel, frequent mutations in chromatin modifiers (e.g., KDM6A, KMT2D) and overexpression of histone-modifying enzymes (e.g., EZH2) alter the tumor epigenome to promote immune evasion and tumor aggressiveness. At the non-coding RNA level, dysregulated microRNAs (miRNAs) and long non-coding RNAs (lncRNAs) in BC contribute to aberrant proliferation, metastatic potential, and
Contradicts
Foxh1 is a locus-specific PRC2 recruiter governing germ layer silencing.
Abstract
Polycomb Repressive Complex 2 (PRC2) establishes H3K27me3 marks to shape spatiotemporal gene expression during embryogenesis. While its dysregulation is linked to developmental disorders, cancer, and aging, the mechanisms guiding PRC2 to specific genomic loci remain a subject of ongoing debate. A prevailing model proposes that PRC2 recruitment occurs via its intrinsic affinity for chromatin rather than through sequence-specific transcription factors. Here, we provide evidence that the maternally deposited pioneer transcription factor Foxh1 plays a critical role in directing PRC2 to specific genomic loci during zygotic genome activation in Xenopus. Foxh1 is a critical transcription factor mediating Nodal signaling, but it also plays an earlier role by pre-binding enhancers prior to signaling activation. This pre-binding is essential for forming enhanceosome complexes that trigger mesendodermal gene expression and drive gastrulation, in cooperation with other maternal transcription facto
Contradicts
H3K36 dimethylation shapes the epigenetic interaction landscape by directing repressive chromatin modifications in embryonic stem cells.
Abstract
Epigenetic modifications on the chromatin do not occur in isolation. Chromatin-associated proteins and their modification products form a highly interconnected network, and disturbing one component may rearrange the entire system. We see this increasingly clearly in epigenetically dysregulated cancers. It is important to understand the rules governing epigenetic interactions. Here, we use the mouse embryonic stem cell (mESC) model to describe in detail the relationships within the H3K27-H3K36-DNA methylation subnetwork. In particular, we focus on the major epigenetic reorganization caused by deletion of the histone 3 lysine 36 methyltransferase NSD1, which in mESCs deposits nearly all of the intergenic H3K36me2. Although disturbing the H3K27 and DNA methylation (DNAme) components also affects this network to a certain extent, the removal of H3K36me2 has the most drastic effect on the epigenetic landscape, resulting in full intergenic spread of H3K27me3 and a substantial decrease in DNA
Contradicts
KDM6A loss-of-function mutations in neurodegenerative diseases show progressive cognitive decline despite increased H3K27me3 demethylation activity, suggesting H3K27me3 removal alone is insufficient for neuroprotection
Abstract
Deep learning describes a class of machine learning algorithms that are capable of combining raw inputs into layers of intermediate features. These algorithms have recently shown impressive results across a variety of domains. Biology and medicine are data-rich disciplines, but the data are complex and often ill-understood. Hence, deep learning techniques may be particularly well suited to solve problems of these fields. We examine applications of deep learning to a variety of biomedical problems-patient classification, fundamental biological processes and treatment of patients-and discuss whether deep learning will be able to transform these tasks or if the biomedical sphere poses unique challenges. Following from an extensive literature review, we find that deep learning has yet to revolutionize biomedicine or definitively resolve any of the most pressing challenges in the field, but promising advances have been made on the prior state of the art. Even though improvements over previo
Contradicts
H3K27me3 rejuvenation through KDM6A overexpression fails to rescue age-related neuronal dysfunction in mouse models, indicating that epigenetic remodeling of this mark does not reverse core aging-associated neurodegenerative pathways
Abstract
To evaluate the benefit of adjuvant treatments, such as chemoradiotherapy (CRT) and chemotherapy (CTx), compared with no adjuvant treatment (No-AT) in resected gallbladder (GB) cancer patients, 151 patients were analyzed: 98 (64.9%) patients received adjuvant treatment with CRT (n = 59, 39.1%) or CTx (n = 39, 25.8%), and the remaining 53 (35.1%) did not (No-AT). The clinicopathological factors, patterns of failure, locoregional recurrence-free survival (LRFS), recurrence-free survival (RFS) and overall survival (OS) were compared among the three groups according to tumor stage. In patients with T2-3N0M0 stage disease, the incidences of locoregional recurrence and distant recurrence and 5-year LRFS, RFS and OS rates were not significantly different among the No-AT, CTx, and CRT groups (p > 0.05 each). In those with T2-3N1-2M0 stage disease, the incidences of locoregional recurrence (11.4%, 78.1%, and 68.4%, respectively) and distant recurrence (42.8%, 73.9% and 66.7%, respectively) in t
📖 Linked Papers (25)Export BibTeX ↗
Benefit of Adjuvant Chemoradiotherapy in Resected Gallbladder Carcinoma.
Scientific reports (2019) · PubMed:31409811 ↗
3 figures
Figure 1
Patterns of failure. Abbreviations: L.R., locoregional recurrence; D.M., distant metastasis; No-AT, no adjuvant therapy; CTx, chemotherapy; and CRT, chemoradiot...
Figure 2
Locoregional recurrence free survival (LRFS), relapse-free survival (RFS), and overall survival (OS) curves according to adjuvant treatments in patients at the ...
Opportunities and obstacles for deep learning in biology and medicine.
Journal of the Royal Society, Interface (2018) · PubMed:29618526 ↗
2 figures
Figure 1.
Neural networks come in many different forms. Left: A key for the various types of nodes used in neural networks. Simple FFNN: a feed-forward neural network in ...
Figure 2.
Deep learning applications, tasks and models based on NLP perspectives.
Foxh1 is a locus-specific PRC2 recruiter governing germ layer silencing.
bioRxiv : the preprint server for biology (2025) · PubMed:41040321 ↗
No figures
Epigenetic regulation of bladder cancer in the context of aging.
Frontiers in pharmacology (2025) · PubMed:40918525 ↗
No figures
Wnt-deficient and hypoxic environment orchestrates squamous reprogramming of human pancreatic ductal adenocarcinoma.
Nature cell biology (2024) · PubMed:39232216 ↗
No figures
Loss of Kmt2c or Kmt2d drives brain metastasis via KDM6A-dependent upregulation of MMP3.
Nature cell biology (2024) · PubMed:38926506 ↗
No figures
Epigenetic regulation of CD38/CD48 by KDM6A mediates NK cell response in multiple myeloma.
Nature communications (2024) · PubMed:38355622 ↗
No figures
KDM6A epigenetically regulates subtype plasticity in small cell lung cancer.
Nature cell biology (2023) · PubMed:37591951 ↗
No figures
SARS-CoV-2 infection induces long-lived bone marrow plasma cells in humans.
Res Sq (2020) · PubMed:33398264 ↗
No figures
📙 Related Wiki Pages (15)
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🏥 Translation
🧬 3D Protein Structure — KDM6A
No curated PDB or AlphaFold mapping for KDM6A yet. Search RCSB →
🧠 GTEx v10 Brain ExpressionJSON
Median TPM across 13 brain regions for KDM6A from GTEx v10.
💉 Clinical Trials (10)Relevance: 66%
0
Active
Active
0
Completed
Completed
624
Total Enrolled
Total Enrolled
PHASE1
Highest Phase
Highest Phase
ACTIVE_NOT_RECRUITING·NCT04953104 · M.D. Anderson Cancer Center
6 enrolled · 2021-09-21 · → 2026-12-31
This phase II trial studies the effect of nivolumab in urothelial cancer that has spread to other places in the body (metastatic), specifically in patients with aberrations in ARID1A gene (ARID1A muta
Locally Advanced Bladder Urothelial Carcinoma Locally Advanced Renal Pelvis Urothelial Carcinoma Locally Advanced Ureter Urothelial Carcinoma
Diagnostic Laboratory Biomarker Analysis Nivolumab Relatlimab
COMPLETED·NCT02893085 · CHU de Reims
100 enrolled · 2015-09 · → 2016-10
The differential diagnosis between benign and malignant bile duct strictures is a difficult and demanding task for clinicians. Clinical, biochemical, and radiological characteristics of malignant bili
Cholangiocarcinoma, Cancer of the Head of the Pancreas
bile sample analysis biochemical markers, VEGF and MMPs, in bile samples
RECRUITING·NCT06630416 · Northwestern University
64 enrolled · 2024-11-27 · → 2029-05-10
This phase II trial tests how well pemetrexed works in treating patients with urothelial bladder cancer and other solid tumors that have spread from where they first started (primary site) to other pl
Metastatic Bladder Urothelial Carcinoma Metastatic Malignant Solid Neoplasm Stage IV Bladder Cancer AJCC v8
Biospecimen Collection Computed Tomography Pemetrexed
RECRUITING·NCT06934681 · Instituto de Investigacion Sanitaria La Fe
72 enrolled · 2025-05-19 · → 2028-12
This clinical trial aims to determinate whether a structured exercise program, supported by telerehabilitation, can help individuals with severe obesity who are going to undergo bariatric surgery.
Th
Morbid Obesity Bariatric Surgery Telerehabilitation
Usual Care Group Controlled exercise with telerehabilitation
UNKNOWN·NCT04601441 · Kindai University
100 enrolled · 2020-11-06 · → 2025-03-31
To evaluate changes in genomic alterations for 73 PC driver genes during apalutamide treatment
Metastatic Castration-sensitive Prostate Cancer
Apalutamide
RAPA-501 Therapy for ALSPHASE2
RECRUITING·NCT04220190 · Rapa Therapeutics LLC
41 enrolled · 2025-01-02 · → 2026-07-01
RAPA-501-ALS is a phase 2/3 expansion cohort study of RAPA-501 autologous hybrid TREG/Th2 cells in patients living with amyotrophic lateral sclerosis (pwALS).
Amyotrophic Lateral Sclerosis
RAPA-501 Autologous T stem cells
COMPLETED·NCT03955380 · Prof. Dr. Dieter Willbold
24 enrolled · 2018-12-12 · → 2019-04-03
This is a single-center multiple-ascending-dose clinical trial assessing the safety and tolerability of oral dosing of Contraloid acetate in healthy volunteers. The study drug Contraloid (alias RD2, a
Alzheimer Dementia Alzheimer Disease
Contraloid
UNKNOWN·NCT04820881 · Washington D.C. Veterans Affairs Medical Center
60 enrolled · 2021-10-01 · → 2024-09
This grant award entitled, "Cerebrovascular Reactivity and Oxygen Metabolism as Markers for Neurodegeneration after Traumatic Brain Injury" (hereafter, "Neurovascular Study"), aims to determine if neu
Neurodegenerative Diseases
Stereotactic Intracerebral Injection of Allogenic IPSC-DAPs in Patients With Parkinson's DiseasePHASE1
NOT_YET_RECRUITING·NCT07212088 · iCamuno Biotherapeutics Ltd.
12 enrolled · 2026-02-28 · → 2027-12-15
Parkinson's disease is a progressive neurodegenerative disorder characterized by high morbidity due to the limited regenerative capacity of dopaminergic neurons in the brain. Current drug treatments p
Parkinson Disease
ALC01 therapy
COMPLETED·NCT02405182 · University of Alberta
145 enrolled · 2014-09 · → 2019-03
Amyotrophic lateral sclerosis (ALS) is a disabling and rapidly progressive neurodegenerative disorder. There is no treatment that significantly slows progression. Increasing age is an important risk f
Amyotrophic Lateral Sclerosis ALS Motor Neuron Diseases
Magnetic Resonance Imaging
No curated ClinVar variants loaded for this hypothesis.
Run scripts/backfill_clinvar_variants.py to fetch P/LP/VUS variants.
No DepMap CRISPR Chronos data found for KDM6A.
Run python3 scripts/backfill_hypothesis_depmap.py to populate.
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🧭 Related
🕸 Knowledge Subgraph (96 edges)Showing top 50 of 96 edges by weightCentered on KDM6A
Top relations:co discussed (60)co associated with (15)implicated in (6)participates in (5)demethylates (2)predicts (1)
🔍 Show all 50 edges across 12 relations
activates (1)
associated with (1)
co discussed (35)
▸ Show 30 more
SIRT1→TET2SIRT6→TNFAPP→SIRT6SIRT6→TAUBDNF→PARP1NGF→PARP1AKT→FOXO3EZH2→MECP2ATG7→FOXO3FOXO3→TET2FOXO3→SIRT3SIRT1→SIRT3DNMT1→EZH2DNMT1→MECP2DNMT1→SOD1GDNF→HSP70DNMT1→SIRT6DNMT1→HDAC3DNMT1→KDM6ADNMT1→TET2SIRT6→HDAC3SIRT6→KDM6ASIRT6→TET2KDM6A→TET2FOXO3→KDM6AFOXO3→SIRT6FOXO3→HDAC3FOXO3→DNMT1KDM6A→HDAC3TET2→HDAC3
deacetylates (1)
demethylates (2)
implicated in (2)
methylates (1)
participates in (1)
predicts (1)
regulated by (1)
requires (1)
🗺️ KG Entities (45)
AKTAPPATG7BDNFC1QCREB1Classical complement cascadeCpG_methylationDNA damage repairDNA_methylationDNMT1EZH2Epigenetic regulationFOXO3FOXO3 / stress resistance / longevityGDNFH3K27_acetylationH3K27me3HDACHDAC3HSP70KDM6AMECP2NAD+_pathwayNGFPARP1SIRT1SIRT3SIRT6SOD1TAUTET2TNFautophagy_pathwaycircadian_rhythmepigenetic_clockh-50a535f9h-782e55f6h-881362dch-a9571dbbh-d7121bcch-fd52a7a0neurodegenerationprocessedsess_sda-2026-04-01-gap-v2-bc5f270e
🔗 Dependency Graph (0 upstream, 2 downstream)
🧪 Adjacent Hypotheses10 siblings from the same analysis
HDAC3-Selective Inhibition for Clock Reset
0.71HDAC3 · neurodegeneration · debated
TET2-Mediated Demethylation Rejuvenation Therapy
0.71TET2 · neurodegeneration · debated
DNMT1-Targeting Antisense Oligonucleotide Reset
0.65DNMT1 · neurodegeneration · debated
FOXO3-Longevity Pathway Epigenetic Reprogramming
0.63FOXO3 · neurodegeneration · debated
SIRT6-NAD+ Axis Enhancement Therapy
0.61SIRT6 · neurodegeneration · debated
Inflammaging-Epigenome Decoupling Strategy
0.00NFKB1 · proposed
NAD+ Metabolic Rescue Via Autophagy-Epigenetic Coupling
0.00SIRT1 · proposed
Mitochondrial-Nuclear Epigenetic Communication Restoration
0.00SOD2 · proposed
Temporal Epigenetic Clock Synchronization Therapy
0.00CLOCK · proposed
Protein Aggregation-Epigenetic Stress Response Modulation
0.00PSMD1 · proposed
🗣 Debate PerspectivesGap Analysis | 4 rounds | 2026-04-01
🔮 Predictions
🔎 Predictions vs Observations1 predictions · 0 with recorded observations
| Prediction | Predicted | Observed | Status | Conf |
|---|---|---|---|---|
| Modulation of KDM6A will affect the proposed pathway | KDM6A knockdown/overexpression shows measurable effect | — no observation — | pending | 0.40 |
🔮 Falsifiable Predictions (1)
pendingconf 40%
Modulation of KDM6A will affect the proposed pathway
Predicted outcome: KDM6A knockdown/overexpression shows measurable effect
Falsification: No effect observed from KDM6A modulation in relevant models
📖 References (11)
- Top3β is an RNA topoisomerase that works with fragile X syndrome protein to promote synapse formation.["Xu D" et al.. Nature neuroscience (2013)
- KAT2A/KAT2B-targeted acetylome reveals a role for PLK4 acetylation in preventing centrosome amplification.["Fournier M" et al.. Nature communications (2016)
- De novo germline and postzygotic mutations in AKT3, PIK3R2 and PIK3CA cause a spectrum of related megalencephaly syndromes["Rivi\u00e8re J" et al.. Nature Genetics (2012)
- In vitro anti-HIV-1 activity of the bioactive compound extracted and purified from two different marine macroalgae (seaweeds) (Dictyota bartayesiana J.V.Lamouroux and Turbinaria decurrens Bory).["Sanniyasi E" et al.. Scientific reports (2019)
- Acetylation of Cytidine in mRNA Promotes Translation Efficiency.["Arango D" et al.. Cell (2018)
- An intramembrane chaperone complex facilitates membrane protein biogenesis.["Chitwood PJ" et al.. Nature (2020)
- Epigenetic regulation of bladder cancer in the context of aging.["Liu X" et al.. Frontiers in pharmacology (2025)
- Foxh1 is a locus-specific PRC2 recruiter governing germ layer silencing.["Cho J" et al.. bioRxiv : the preprint server for biology (2025)
- H3K36 dimethylation shapes the epigenetic interaction landscape by directing repressive chromatin modifications in embryonic stem cells.["Chen H" et al.. Genome research (2022)
- Opportunities and obstacles for deep learning in biology and medicine.["Ching T" et al.. Journal of the Royal Society, Interface (2018)
- Benefit of Adjuvant Chemoradiotherapy in Resected Gallbladder Carcinoma.["Kim T" et al.. Scientific reports (2019)
Related Entities
▸Metadata
| status | proposed |
| _schema_version | 1 |
| hypothesis_type | None |
📊 Evidence Profile
Foundational
Evidence Balance
+0%
Certainty
100%
Debates
2
Incoming
3234
Outgoing
1784
0 supporting
0 contradicting
2 neutral
🌍 Provenance Graph
9 nodes, 51 edges
derives from (14)
hypothesis-h-881362dc→analysis-SDA-2026-04-01-gap-v2analysis-SDA-2026-04-01-gap-v2→hypothesis-h-a9571dbbhypothesis-h-a9571dbb→analysis-SDA-2026-04-01-gap-v2analysis-SDA-2026-04-01-gap-v2→hypothesis-h-d7121bcchypothesis-h-d7121bcc→analysis-SDA-2026-04-01-gap-v2
▸ Show 9 more
analysis-SDA-2026-04-01-gap-v2→hypothesis-h-50a535f9hypothesis-h-50a535f9→analysis-SDA-2026-04-01-gap-v2analysis-SDA-2026-04-01-gap-v2→hypothesis-h-881362dcanalysis-SDA-2026-04-01-gap-v2→hypothesis-h-fd52a7a0hypothesis-h-fd52a7a0→analysis-SDA-2026-04-01-gap-v2analysis-SDA-2026-04-01-gap-v2→hypothesis-h-782e55f6hypothesis-h-782e55f6→analysis-SDA-2026-04-01-gap-v2analysis-SDA-2026-04-01-gap-v2→hypothesis-h-b7898b79analysis-SDA-2026-04-01-gap-v2→hypothesis-h-019ad538
🗣 Debate History2 sessions
gap_analysisWhat are the mechanisms underlying epigenetic clocks and biological aging in neurodegeneration?r4q=0.882026-04-01
gap_analysisWhat are the mechanisms underlying epigenetic clocks and biological aging in neurodegeneration?r4q=0.882026-04-01+0.000
This artifact has no version history yet.
Linked Artifacts (5007)
🧬 Related Hypotheses — same target / disease (20)
X-Linked KDM6A Escapes X-Inactivation to Drive Female-Biased Microglial Neuroprotective St
Score: 0.675 · Target: KDM6A · alzheimer
Gut Microbiome Remodeling to Prevent Systemic NLRP3 Priming in Neurodegeneration
Score: 0.924 · Target: NLRP3, CASP1, IL1B, PYCARD · neurodegeneration
APOE-Dependent Autophagy Restoration
Score: 0.895 · Target: MTOR · neurodegeneration
Hypothesis 4: Metabolic Coupling via Lactate-Shuttling Collapse
Score: 0.895 · Target: SLC16A1, SLC16A7, LDHA, PDHA1 · neurodegeneration
p38α Inhibitor and PRMT1 Activator Combination to Restore Physiological TDP-43 Phosphoryla
Score: 0.895 · Target: MAPK14/PRMT1 · neurodegeneration
SIRT1-Mediated Reversal of TREM2-Dependent Microglial Senescence
Score: 0.893 · Target: SIRT1 · neurodegeneration
TREM2-Mediated Astrocyte-Microglia Crosstalk in Neurodegeneration
Score: 0.892 · Target: TREM2 · neurodegeneration
Optimized Temporal Window for Metabolic Boosting Therapy Determines Success of Microglial
Score: 0.887 · Target: IFNG · neurodegeneration
TREM2-APOE Axis Dissociation for Selective DAM Activation
Score: 0.886 · Target: TREM2-APOE axis · neurodegeneration
Circadian Glymphatic Entrainment via Targeted Orexin Receptor Modulation
Score: 0.882 · Target: HCRTR1/HCRTR2 · neurodegeneration
Complement Cascade Inhibition Synaptic Protection
Score: 0.867 · Target: — · neurodegeneration
TREM2 R47H Variant-Driven Metabolic Dysfunction as the Primary Trigger for Failed DAM Tran
Score: 0.862 · Target: NAMPT · neurodegeneration
H6: Aberrant eIF2α Phosphorylation Creates Stalled Translation State
Score: 0.856 · Target: EIF2S1, EIF2AK3/PERK, PPP1R15B, EIF2B · neurodegeneration
Senescent Cell ASM-Complement Cascade Intervention
Score: 0.852 · Target: SMPD1 · neurodegeneration
Prime Editing Precision Correction of APOE4 to APOE3 in Microglia
Score: 0.850 · Target: APOE · neurodegeneration
TREM2-Deficient Microglia as Drivers of Amyloid Plaque Toxicity in Alzheimer's Disease
Score: 0.847 · Target: TREM2 · neurodegeneration
Neutral Sphingomyelinase-2 Inhibition for Synaptic Protection in Neurodegeneration
Score: 0.844 · Target: SMPD3 · neurodegeneration
TYROBP (DAP12) Conditional Antagonism for Early-Stage Neuroprotection
Score: 0.844 · Target: TYROBP · neurodegeneration
miR-155/Interferon-gamma Feedback Loop as a Reversible Molecular Switch for Protective Mic
Score: 0.843 · Target: MIR155 · neurodegeneration
Hypothesis 7: SST-SST1R/Gamma Entrainment-Enhanced Astrocyte Secretome
Score: 0.839 · Target: SST, SSTR1, SSTR2 · neurodegeneration
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