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- Live5/17/2026, 4:45:12 PM
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{ "field_tag": "astrocytes", "text": "What resolves this contention: Apparent cell-type conflict about which glial cell is the relevant TNF-α source for plasticity: cortical homeostatic scaling is attributed to astrocyte-derived TNF (Stellwagen/Malenka lineage, confirmed by cell-specific conditional knockout in 2024), while striatal drug-induced plasticity is attributed to microglia-derived TNF. / Astrocytes are the necessary source of TNF-α that mediates homeostatic synaptic plasticity (synaptic scaling) in visual cortex, with conditional astrocyte-specific TNF deletion phenocopying global TNF knockout. / Striatal microglia, not astrocytes, are the source of TNF-α that suppresses cocaine-induced plasticity — microglial activation and TNF production drive AMPAR internalization on medium spiny neurons, and depleting microglia abolishes this regulation.", "source_refs": [ "paper:paper-9dcbd83d4103", "paper:paper-f0ba4695e5a5", "wiki_page:computationalreviewastrocytes-08", "paper:paper-9dcbd83d4103", "paper:paper-f0ba4695e5a5", "wiki_page:computationalreviewastrocytes-08", "paper:paper-9dcbd83d4103", "paper:paper-f0ba4695e5a5", "wiki_page:computationalreviewastrocytes-08", "paper:paper-9dcbd83d4103", "paper:paper-f0ba4695e5a5", "wiki_page:computationalreviewastrocytes-08" ], "importance": "0.7200", "tractability": "0.5500", "potential_impact": "0.7000", "composite_score": "0.2772", "elo_rating": "1500.00", "state": "open", "decay_rate": "0.01000", "resolution_evidence_refs": [] }