🧪
hypothesis

Astrocyte senescence and SASP-driven neuroinflammation in ALS

Hypothesis

Astrocyte senescence and SASP-driven neuroinflammation in ALS

ALS astrocytes may acquire p16/p21-positive senescence-like states and release SASP factors that activate microglia and accelerate motor-neuron loss.
🧬 CDKN2A; CDKN1A; IL6🩺 neurodegeneration🎯 Composite 51%💱 $0.51▲0.6%proposed
EvidencePending (0%)📖 0 cit🗣 1 debates✓ 3 support✗ 2 oppose
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Mechanistic 0.58 (15%) Evidence 0.50 (15%) Novelty 0.62 (12%) Feasibility 0.46 (12%) Impact 0.54 (12%) Druggability 0.50 (10%) Safety 0.34 (8%) Competition 0.66 (6%) Data Avail. 0.52 (5%) Reproducible 0.42 (5%) KG Connect 0.50 (8%) 0.510 composite
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Composite51%

🧪 Overview

ALS astrocytes may acquire p16/p21-positive senescence-like states and release SASP factors that activate microglia and accelerate motor-neuron loss. This remains a discovery-stage hypothesis because senescence markers may reflect reactive astrocytosis, aging, or terminal inflammation rather than a primary causal driver.

🧬 Mechanism

No curated mechanism pathway recorded for this hypothesis.

⚖️ Evidence

⚖️ Evidence Matrix3 supports2 contradicts
Supports
Astrocytes in SOD1G93A mice and ALS patients show senescence markers.
PMID:29937267
Supports
SASP-associated inflammatory factors are elevated in ALS CSF and post-mortem tissue.
PMID:32572062
Supports
Young astrocytes can rescue motor-neuron survival in co-culture, supporting astrocyte contribution to motor-neuron vulnerability.
PMID:25437563
Contradicts
SASP cytokines are not cell-source-specific and do not prove astrocyte senescence precedes neurodegeneration.
PMID:NA
Contradicts
Systemic senolytics have broad off-target immune, vascular, platelet, and CNS-penetrance concerns.
PMID:29100065
📖 Linked Papers

No linked papers recorded for this hypothesis yet.

🏥 Translation

🧬 3D Protein Structure — CDKN2A;

No curated PDB or AlphaFold mapping for CDKN2A; yet. Search RCSB →

💉 Clinical Trials

No clinical trials data linked to this hypothesis yet.

No curated ClinVar variants loaded for this hypothesis.

Run scripts/backfill_clinvar_variants.py to fetch P/LP/VUS variants.

🔍 Search ClinVar for CDKN2A; CDKN1A; IL6 →

No DepMap CRISPR Chronos data found for CDKN2A; CDKN1A; IL6.

Run python3 scripts/backfill_hypothesis_depmap.py to populate.

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💾 Resource Usage

No resource usage or linked notebooks recorded for this hypothesis yet.

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