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Mapping and identification of autoimmunity genes.
1Bayer Yakuhin Limited, Research Center Kyoto, 6-5-1-3 Kunimidai, Kizu-cho, Soraku-gun, Kyoto 619-0216, Japan. jeffrey.encinas@bayer.co.jp
Current Opinion in Immunology
|December 5, 2000
Summary
Researchers are mapping genes linked to autoimmune diseases, identifying over 20 genetic locations. Early findings suggest some of these "autoimmunity genes" may be shared across different autoimmune conditions.
Area of Science:
- Genetics
- Immunology
- Genomics
Background:
- Significant research efforts have focused on identifying chromosomal locations of genes associated with autoimmune disease susceptibility.
- The initial phase of this research involved genome-wide scans using microsatellite markers.
Purpose of the Study:
- To map the chromosomal locations of genes contributing to autoimmune disease susceptibility.
- To identify and narrow down specific genetic loci linked to various autoimmune conditions.
Main Methods:
- Genome-wide scanning using microsatellite markers to identify disease-linked loci.
- Comparative mapping across humans, mice, and rats to identify conserved genetic regions.
Main Results:
- First-draft genetic maps for numerous autoimmune diseases have been generated, identifying up to 20 loci per disease.
- Overlapping loci between different autoimmune diseases have been observed, suggesting shared genetic underpinnings.
Conclusions:
- The mapping of autoimmune disease susceptibility loci is advancing, with a focus on positional cloning of disease-associated alleles.
- Preliminary data strongly suggest the existence of shared "autoimmunity genes" across diverse autoimmune diseases, indicating common etiological pathways.