Does C1q function differ based on subcellular localization or binding partner identity?

neurodegeneration partially_addressed composite 71%
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Composite
71%
Novelty
80%
Mechanistic
—
Druggability
—
Priority
90%
Importance
90%
Tractability
75%
Market price
45%

Description

The debate revealed fundamental disagreement about whether C1q has spatially distinct functions at synapses versus microglia, or whether outcomes depend solely on binding partners. This mechanistic uncertainty undermines all proposed therapeutic strategies targeting C1q.

Source: Debate session sess_SDA-2026-04-12-gap-debate-20260410-112848-7ba6c2e1 (Analysis: SDA-2026-04-12-gap-debate-20260410-112848-7ba6c2e1)

Resolution criteria

Resolved when: evidence distinguishes C1q functions by synaptic, microglial, extracellular, or other localization and by binding partner, using spatial assays or perturbations with complement/synapse outcomes. SciDEX must add cited KG edges connecting C1q location, binding partner, downstream pathway, cell type, and neurodegeneration phenotype, and publish a debate synthesis stating which therapeutic targeting strategy is supported.

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