Germfree mouse colonocyte energy metabolism analysis

Validation Score: 0.900 Price: $0.50 germfree mice Status: proposed

What This Experiment Tests

Validation experiment designed to validate causal mechanisms targeting N/A in germfree mice. Primary outcome: Energy homeostasis and metabolic enzyme expression in colonocytes

Description

This experiment compared energy homeostasis and metabolic state between colonocytes from germfree mice (lacking microbiota) and conventional mice with normal microbiota. The study examined the expression of enzymes involved in intermediary metabolism including the TCA cycle, measured NADH/NAD+ ratios, oxidative phosphorylation levels, ATP levels, AMPK activation, p27(kip1) phosphorylation, and autophagy markers. The goal was to determine whether the absence of microbiota-produced butyrate leads to an energy-deprived state in colonocytes and how this affects cellular metabolism and signaling pathways. The study revealed that germfree colonocytes exhibit decreased expression of key metabolic enzymes, reduced energy production, and compensatory activation of energy-sensing pathways.

TARGET GENE
N/A
MODEL SYSTEM
germfree mice
ESTIMATED COST
$0
TIMELINE
0 months
PATHWAY
TCA cycle, oxidative phosphorylation, AMPK signaling, autophagy
SOURCE
extracted_from_pmid_21531334
PRIMARY OUTCOME
Energy homeostasis and metabolic enzyme expression in colonocytes

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%) 0.900 composite

📖 Wiki Pages

NAD+ Precursors (NMN/NR) for Parkinson's DiseasetherapeuticAMPK (AMP-Activated Protein Kinase)entityNAD+ Precursors for NeurodegenerationtherapeuticNAD+ Precursor Therapy for Neurodegenerative DiseatherapeuticATP P2X3 Receptor Neuronscellnad-augmentation-therapy-early-adgeneralAMPK Agonist Therapy for NeurodegenerationideaAMPK Activators for Neurodegeneration — InvestmentinvestmentAMPK Activators for Parkinson's DiseasemechanismAMPK-Mitochondrial Quality Control AxismechanismAMPK Signaling in NeurodegenerationmechanismAMPK Signaling in Parkinson's DiseasemechanismAMPK Signaling PathwaymechanismNAD+ Bioenergetics Investment SynthesismechanismNAD+ Metabolism in Neurodegenerationmechanism

Protocol

Comparison of metabolic parameters between germfree and conventional mouse colonocytes, including enzyme expression analysis, NADH/NAD+ ratio measurement, ATP quantification, AMPK and p27(kip1) phosphorylation assessment, and autophagy marker detection

Expected Outcomes

Germfree colonocytes would show signs of energy deprivation due to lack of bacterial butyrate

Success Criteria

Demonstration of decreased metabolic enzyme expression, reduced energy production, and activation of energy-sensing pathways in germfree colonocytes

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