**Molecular Mechanism and Rationale**
Astrocytic release of soluble complement regulators CD55 and CD46, rather than membrane-bound expression, represents a dynamic mechanism for spatiotemporal control of complement-mediated synaptic pruning. Astrocytes constitutively express high levels of CD55 and CD46, which undergo metalloproteinase-mediated shedding via ADAM10 and ADAM17 cleavage at defined juxtamembrane sites, generating soluble forms (sCD55, sCD46) that retain full complement regulatory
The activity-dependent trafficking of complement regulators CD55 and CD46 to synaptic surfaces represents a dynamic regulatory mechanism controlling complement-mediated synaptic pruning through vesicular transport and membrane insertion. Rather than static differential expression, CD55 and CD46 undergo rapid, activity-dependent translocation from intracellular vesicular pools to synaptic membranes via SNARE-mediated exocytosis. High-frequency synaptic activity triggers calcium influx through NMD
Convergent vs Divergent Predictions
This summary checks where the selected hypotheses point toward the same target or mechanism, and where they pull in opposite directions.
CD46 (MCP) recurs across 2 selected hypotheses with aligned directionality in neuroinflammation.
CD55 (DAF) recurs across 2 selected hypotheses with aligned directionality in neuroinflammation.
Divergent signals
No direct polarity conflicts detected among the selected hypotheses.
Verdict Summary
7/11
dimensions won
Astrocytic Complement Regulator Release
11/11
dimensions won
Activity-Dependent CD55/CD46 Trafficking
Radar Chart — 10 Dimensions
Score Comparison Bars
Mechanistic
0.75
0.75
Evidence
0.33
0.72
Novelty
0.00
0.75
Feasibility
0.00
0.70
Impact
0.00
0.80
Druggability
0.70
0.70
Safety
0.50
0.50
Competition
0.80
0.80
Data
0.55
0.55
Reproducible
0.72
0.72
KG Connect
0.50
0.50
Score Breakdown
Dimension
Astrocytic Complement Regulato
Activity-Dependent CD55/CD46 T
Mechanistic
0.750
0.750
Evidence
0.325
0.720
Novelty
0.000
0.750
Feasibility
0.000
0.700
Impact
0.000
0.800
Druggability
0.700
0.700
Safety
0.500
0.500
Competition
0.800
0.800
Data
0.550
0.550
Reproducible
0.720
0.720
KG Connect
0.500
0.500
Evidence
Astrocytic Complement Regulator Release Modulates Synaptic V
No evidence citations yet
Activity-Dependent CD55/CD46 Trafficking and Synaptic Surfac
No evidence citations yet
Debate Excerpts
Astrocytic Complement Regulator Release Modulates
4 rounds · quality: 0.75
Persona-Theorist
# Therapeutic Hypotheses: Selectivity of Complement-Mediated Synaptic Elimination During Prolonged Anesthesia
---
## Hypothesis 1: Activity-Dependent Synaptic Tagging via CREB-BDNF TrkB Signaling
*...
Persona-Skeptic
# Critical Evaluation of Hypotheses for Complement-Mediated Synaptic Selectivity
## Overview
These hypotheses address a legitimate gap in understanding how C1q distinguishes between synapses for eli...
Persona-Domain Expert
# Feasibility Assessment: Selectivity Mechanisms in Anesthesia-Induced Synaptic Elimination
## Executive Summary
The central question—whether specific synapses become targets for complement-mediated...
Persona-Synthesizer
{
"ranked_hypotheses": [
{
"title": "Differential Complement Regulator Expression on Synaptic Membranes (CD55/CD46)",
"description": "Excitatory synapses on specific neuronal compart...
Activity-Dependent CD55/CD46 Trafficking and Synap
4 rounds · quality: 0.75
Persona-Theorist
# Therapeutic Hypotheses: Selectivity of Complement-Mediated Synaptic Elimination During Prolonged Anesthesia
---
## Hypothesis 1: Activity-Dependent Synaptic Tagging via CREB-BDNF TrkB Signaling
*...
Persona-Skeptic
# Critical Evaluation of Hypotheses for Complement-Mediated Synaptic Selectivity
## Overview
These hypotheses address a legitimate gap in understanding how C1q distinguishes between synapses for eli...
Persona-Domain Expert
# Feasibility Assessment: Selectivity Mechanisms in Anesthesia-Induced Synaptic Elimination
## Executive Summary
The central question—whether specific synapses become targets for complement-mediated...
Persona-Synthesizer
{
"ranked_hypotheses": [
{
"title": "Differential Complement Regulator Expression on Synaptic Membranes (CD55/CD46)",
"description": "Excitatory synapses on specific neuronal compart...