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{
  "description": "HMW tau triggers robust microglial responses including Clec7a-positive rod microglia formation, yet doesn't cause neurodegeneration or synapse loss unlike fibrillar tau. This dissociation between neuroinflammation and neuronal damage challenges current understanding of tau toxicity mechanisms.\n\nGap type: unexplained_observation\nSource paper: Tau seeding and spreading in vivo is supported by both AD-derived fibrillar and oligomeric tau. (2023, Acta neuropathologica, PMID:37341831)",
  "domain": "neuroinflammation",
  "status": "open",
  "priority_score": 0.86,
  "importance_score": 0.88,
  "tractability_score": 0.82,
  "source": "pubmed:37341831",
  "resolution_criteria": "[\"Comparative proteomics of microglia isolated from HMW tau-injected vs fibrillar tau-injected mouse brain identifies 15+ differentially expressed genes in the inflammatory pathway\", \"HMW tau stimulation of microglial cultures triggers distinct cytokine/chemokine profile (multiplex ELISA) vs fibrillar tau at 24h\", \"RNA-seq of Clec7a+ microglia sorted from HMW tau-injected mice shows specific neuroprotective gene signature distinct from fibrillar tau response\", \"Selective blockade of identified glial activation pathways (e.g., TREM2 or complement) reduces neurotoxicity without affecting HMW tau clearance\"]",
  "market_price": 0.5
}