```json
{
"ranked_hypotheses": [
{
"rank": 1,
"hypothesis_id": "H1",
"title": "TREM2-Dependent Microglial Metabolic Reprogramming as Primary Neuroprotective Mechanism",
"composite_score": 0.71,
"dimension_scores": {
"mechanistic_plausibility": 0.75,
"evidence_strength": 0.72,
"novelty": 0.55,
"feasibility": 0.70,
"therapeutic_potential": 0.80,
"druggability": 0.85,
"safety_profile": 0.55,
"competitive_landscape": 0.60,
"data_availability": 0.80,
"reproducibility": 0.75
},
"evidence_for": [
{"claim": "Human coding variants in TREM2 (R47H) increase AD risk ~3-fold, establishing TREM2 as causal", "pmid": "30327531"},
{"claim": "TREM2-deficient microglia fail to upregulate lipid metabolism genes and show impaired amyloid compaction", "pmid": "31278165"},
{"claim": "TREM2+ microglia show trajectory from homeostatic to disease-associated state in early Braak stages", "pmid": "SEA-AD snRNA-seq"},
{"claim": "Single-cell SLEAP analysis shows enrichment for OXPHOS gene modules preceding lysosomal genes", "pmid": "SEA-AD GSEA"},
{"claim": "AL002 TREM2 agonist in Phase 2 (INVOKE-2) with Denali BBB shuttle technology", "pmid": "NCT04592874"}
],
"evidence_against": [
{"claim": "TREM2 deficiency reduced tau-mediated neuronal loss in advanced pathology models, suggesting context-dependent role", "pmid": "31881164"},
{"claim": "TREM2 signaling in some contexts promotes glycolysis for inflammatory responses, not OXPHOS", "pmid": "32349664"},
{"claim": "Pseudotime trajectory cannot distinguish causal from correlated expression changes", "pmid": "computational limitation"},
{"claim": "Metabolic reprogramming interpretation ambiguous - OXPHOS could represent compensation rather than proactive protection", "pmid": "theoretical"}
],
"synthesis_notes": "TREM2 remains strongest candidate despite skeptic's valid concerns about stage-dependency. AL002 Phase 2 data will be critical discriminator. Recommended focus on early-stage patient stratification."
},
{
"rank": 2,
"hypothesis_id": "H3",
"title": "C9orf72 Haploinsufficiency Disrupts Microglial-Lymphocyte Cross-Talk",
"composite_score": 0.64,
"dimension_scores": {
"mechanistic_plausibility": 0.65,
"evidence_strength": 0.60,
"novelty": 0