SCFA-GPR43-TREM2 Axis in Microglial Homeostasis Using Germ-Free Mouse Model

In-Vivo Score: 0.850 Price: $0.50 Alzheimer disease Germ-free 5xFAD mice with SCFA supplementation Status: proposed

What This Experiment Tests

In-Vivo experiment designed to assess clinical efficacy targeting N/A in Germ-free 5xFAD mice with SCFA supplementation. Primary outcome: Amyloid plaque burden and TREM2 microglial expression

Description

Investigate whether SCFA (butyrate/acetate) supplementation via GPR43 (FFAR2) activation restores TREM2-dependent microglial homeostatic function and reduces amyloid plaque burden in germ-free 5xFAD mouse model of AD.

TARGET GENE
N/A
MODEL SYSTEM
Germ-free 5xFAD mice with SCFA supplementation
ESTIMATED COST
$38,000
TIMELINE
10 months
PATHWAY
N/A
SOURCE
auto-generated
PRIMARY OUTCOME
Amyloid plaque burden and TREM2 microglial expression

Scoring Dimensions

Info Gain 0.82 (25%) Feasibility 0.78 (20%) Hyp Coverage 0.88 (20%) Cost Effect. 0.75 (15%) Novelty 0.80 (10%) Ethical Safety 0.00 (10%) 0.850 composite

Protocol

in-vivo

Expected Outcomes

SCFA supplementation increases TREM2 expression and reduces amyloid plaque load by >30% in germ-free 5xFAD mice, with reversal upon GPR43 blockade.

Success Criteria

Amyloid plaque burden (Congo red/IHC), TREM2 expression (RT-qPCR, flow cytometry); threshold: p < 0.05 vs. vehicle.

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