C1q neutralizing antibody intervention in depression model

Validation Score: 0.850 Price: $0.50 depression LPS-treated mice with C1q antibody intervention Status: proposed

What This Experiment Tests

Validation experiment designed to validate causal mechanisms targeting C1q in LPS-treated mice with C1q antibody intervention. Primary outcome: rescue of behavioral deficits, reduced synaptic loss, decreased abnormal microglial phagocytosis

Description

This therapeutic intervention experiment involved treating LPS-induced depressed mice with a C1q neutralizing antibody to test whether inhibiting the C1q/C3-CR3 signaling pathway could rescue the behavioral and synaptic deficits. The study examined whether blocking C1q could reduce abnormal microglial phagocytosis of synapses, prevent synaptic loss, and improve depressive and anxiety-like behaviors in the mouse model. This experiment was crucial for establishing the causal relationship between the complement pathway and the observed pathological changes. The researchers assessed the same parameters as in the first experiment but now with the addition of the therapeutic intervention to determine if pathway inhibition could reverse the LPS-induced effects on behavior, synaptic integrity, and microglial function.

TARGET GENE
C1q
MODEL SYSTEM
LPS-treated mice with C1q antibody intervention
ESTIMATED COST
$0
TIMELINE
0 months
PATHWAY
C1q/C3-CR3 complement signaling pathway
SOURCE
extracted_from_pmid_38642614
PRIMARY OUTCOME
rescue of behavioral deficits, reduced synaptic loss, decreased abnormal microglial phagocytosis

Scoring Dimensions

Info Gain 0.00 (25%) Feasibility 0.00 (20%) Hyp Coverage 0.00 (20%) Cost Effect. 0.00 (15%) Novelty 0.00 (10%) Ethical Safety 0.00 (10%) 0.850 composite

📖 Wiki Pages

C1QA Gene — Complement Component 1q A ChaingeneC1Q Protein (Complement Component 1q)proteinCR3-Dependent Microglial Synapse Elimination in PamechanismDepression in NeurodegenerationdiseaseResearchersindexDepression (Major Depressive Disorder)diseaseMicrogliaentityMicrogliacell

Protocol

LPS-induced depression model followed by C1q neutralizing antibody treatment, with subsequent assessment of behaviors, synaptic markers, microglial phagocytosis, and complement pathway activity

Expected Outcomes

C1q antibody treatment would reduce microglial phagocytosis, preserve synapses, and improve behavioral outcomes

Success Criteria

significant improvement in behavioral measures, reduced synaptic loss, and decreased abnormal microglial activity compared to LPS-only treated mice

Related Hypotheses (2)

Astrocyte-Microglia Communication Rebalancing via Cytokine Modulation0.655
TREM2-C1Q Competitive Binding to Prevent Complement-Mediated Cholinergic Synapse Loss0.591

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