Deficiency of the interleukin-1–receptor antagonist
|Deficiency of the interleukin-1–receptor antagonist|
|Classification and external resources|
Deficiency of the interleukin-1–receptor antagonist (DIRA) is a rare, autosomal recessive, genetic autoinflammatory syndrome resulting from mutations in IL1RN, the gene encoding the interleukin 1 receptor antagonist.
The mutations result in an abnormal protein that is not secreted, exposing the cells to unopposed interleukin 1 activity. This results in sterile multifocal osteomyelitis (bone inflammation in multiple places), periostitis (inflammation of the membrane surrounding the bones), and pustulosis (due to skin inflammation) from birth.
- Aksentijevich I, Masters SL, Ferguson PJ et al.. An Autoinflammatory Disease with Deficiency of the Interleukin-1–Receptor Antagonist. N Engl J Med. 2009; 360: 2426-2437.
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