Multi-omics framework integrating genetics microbiome and immunity for understanding motor neuron degeneration...

Area of Science:

• Neuroscience
• Genetics
• Microbiome Research

Background:

• Amyotrophic lateral sclerosis (ALS) is a severe neurodegenerative disease with unknown causes.
• Understanding ALS pathogenesis is crucial for developing effective treatments.

Purpose of the Study:

• To investigate causal relationships between cardiovascular factors, gut microbiota, immune cell phenotypes, and ALS susceptibility.
• To identify potential therapeutic targets and biomarkers for ALS.

Main Methods:

• Mendelian randomization (MR) analyses integrating multi-omics data (genomics, transcriptomics, microbiome).
• Colocalization studies to identify shared genetic architecture.
• Predictive modeling for biomarker panel development and validation.

Main Results:

• Elevated LDL cholesterol, apolipoprotein B, and systolic blood pressure causally linked to increased ALS risk.
• Protective effects of Alistipes and detrimental effects of Bacteroides in gut microbiota identified.
• Specific T cell populations and monocytes showed significant associations with ALS.
• A five-gene biomarker panel demonstrated high accuracy in predicting ALS.

Conclusions:

• ALS is a complex disorder influenced by cardiovascular and microbiome factors.
• Identified actionable therapeutic targets for cardiovascular and microbiome interventions.
• Developed a validated biomarker panel for ALS risk stratification and prevention.