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Intergenomic consensus in multifactorial inheritance loci: the case of multiple sclerosis
P Serrano-Fernández1, S M Ibrahim, U K Zettl
1Institute of Immunology, University of Rostock, Schillingallee 70, 18055 Rostock, Germany. serrano@pzr.uni-rostock.de
Genes and Immunity
|December 2, 2004
Summary
This study introduces a method to compare genetic regions influencing polygenic diseases across species. Comparing human multiple sclerosis regions with its animal model, EAE, revealed significant gene overlap, validating the model.
Area of Science:
- Genetics
- Genomics
- Immunology
Background:
- Quantitative trait loci (QTLs) are crucial for understanding polygenic diseases.
- Identifying candidate genes within QTLs is challenging.
- Animal models are used to study human diseases, but their relevance needs empirical evaluation.
Purpose of the Study:
- To develop a global approach for intergenomic consensus of QTLs.
- To fine-map QTLs and identify candidate genes for polygenic traits.
- To empirically evaluate the relevance of animal models for human disease research.
Main Methods:
- Comparing human multiple sclerosis (MS) susceptibility regions with QTLs from the experimental allergic encephalomyelitis (EAE) mouse model.
- Utilizing sequence similarity to identify intergenomic consensus genes.
- Statistical analysis to determine the significance of gene overlap.
Main Results:
- A significant number of consensus genes (295) were identified between human MS and EAE QTLs.
- The observed overlap is statistically higher than expected by chance.
- This suggests a strong genetic correlation between the human disease and the animal model.
Conclusions:
- The developed approach effectively identifies conserved genetic regions across species.
- The findings support the utility of the EAE model for studying human multiple sclerosis.
- This method aids in evaluating the translatability of animal models for human disease research.