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Dataset: Hypothesis: Considering PubMed #41177462, Intranasally administered GDEVs, specifically spermidine-modified ginger extracellular vesicles, may offer a multi-target therapeutic strategy for C9orf72-associated ALS by crossing the blood-brain barrier via olfactory routes to potentially deliver gene-editing components, support axonal translation, restore STMN2 expression, and attenuate neuroinflammation. - PathMap Experiment #000119

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Zenodo2026-08-11 更新2026-08-13 收录
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Interactive Data Viewer: Read, View, and Print from Day 1 Use our fully interactive viewer to view, read, and print this research data right from Day 1: https://pathmap.org/viewer.php?id=119 Artificial General Intelligence LLC Claim Evaluated: Hypothesis: Considering PubMed #41177462, Intranasally administered GDEVs, specifically spermidine-modified ginger extracellular vesicles, may offer a multi-target therapeutic strategy for C9orf72-associated ALS by crossing the blood-brain barrier via olfactory routes to potentially deliver gene-editing components, support axonal translation, restore STMN2 expression, and attenuate neuroinflammation. This dataset contains the raw JSON execution trace, verified verbatim quotes, and MeSH-aligned logic gates generated by PathMap Studio's Veridical Enforcement engine. 🔍 Novel & Overlooked Insights Spermidine serves a dual role as both a targeting ligand for TAAR-mediated olfactory delivery and a bioactive modulator of eIF5A hypusination in axons. Ginger-derived EVs can be thermally reassembled or surface-modified to enhance their structural stability and endosomal escape properties. C9orf72 mutations involve RAN translation of dipeptide repeats, which creates a proteotoxic environment that can be mitigated by modulating MARK2-eIF2α signaling. The olfactory-to-hippocampal route is not limited to cortex-based disorders but can facilitate distribution to deeper neuroanatomical targets involved in ALS. Therapeutic efficacy in ALS models has been shown to rely on the "OXPHOS-promoting protein eIF5A and spermidine required for functional eIF5A hypusination" which are significantly more abundant in young stem-cell derived EVs. 🧪 Extracted Custom Datapoints 📊 Suggested Experiments Test S-GEVs@CRISPR targeting C9orf72 repeat expansions in patient-derived ALS organoids to assess RAN translation suppression. Evaluate the rescue effect of S-GEVs on axonal STMN2 protein levels in C9orf72-knockdown motor neurons. Perform longitudinal PET imaging of S-GEV distribution in C9-ALS mice to correlate olfactory-brain uptake with reduced neuroinflammation. 📊 Suggested Studies Comparative analysis of eIF5A hypusination levels in sporadic vs C9orf72-ALS patients following spermidine treatment. Long-term biosafety and immunogenicity assessment of repeated intranasal S-GEV administration in non-human primate models. Multi-omics profiling of CNS-resident immune cells following intranasal S-GEV therapy to identify downstream inflammatory mediators suppressed by the intervention. 📊 Swansons Literature Based Discovery Candidates Spermidine-modified extracellular vesicles can mitigate ALS-related C9orf72 RAN translation by modulating the MARK2-eIF2α stress-sensing axis. Spermidine-modified ginger EVs have proven efficacy in intestinal/neuronal anti-inflammatory barrier repair (Source ID 41177462). MARK2 is a key eIF2α kinase that enhances toxic RAN translation in C9orf72-ALS (Source ID 41231952). Autophagy and eIF2α-mediated translational stress pathways. Since spermidine is a potent autophagy activator and a stabilizer of translation factors (eIF5A), it can likely downregulate the MARK2-mediated stress-sensing pathways that drive non-canonical RAN translation in C9orf72 models. 📊 Contradictions Between Evidences Conflicting findings regarding the efficacy of spermidine in AD (AD evidence is inconclusive, while ALS models show strong benefit in neurite growth/translation). 📊 Repurposed Solutions The use of botanical vesicles (ginger/ginseng) as carriers for gene-editing components (siRNA/CRISPR) via the olfactory route provides a viable strategy for bypass of the BBB for CNS disorders. Tags Attractor Table Extracted Keywords & Entities Spermidine, _gates_from_spermidine, Olfactory Bulb, _gates_to_olfactory_bulb, Drug Delivery Systems, _gates_from_drug_delivery_systems, Stathmin 2, _gates_to_stathmin_2, Eukaryotic Initiation Factor-5A, _gates_from_eukaryotic_initiation_factor-5a, C9orf72 Protein, _gates_to_c9orf72_protein Run Your Own Analysis PathMap is a patent-pending universal AI workbench designed to eliminate LLM hallucinations in medical research. Generate your own autonomous discovery reports at PathMap.org.

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Zenodo
创建时间:
2026-08-11
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