Antisynthetase syndrome: Overview

Summary

Antisynthetase syndrome is a chronic autoimmune condition that affects the muscles and various other parts of the body. The signs and symptoms can vary but may include muscle inflammation (myositis), polyarthritis (inflammation of many joints), interstitial lung disease, thickening and cracking of the hands, and Raynaud phenomenon. The exact underlying cause is unknown; however, the production of autoantibodies (antibodies that attack normal cells) that attack certain enzymes in the body called 'aminoacyl-tRNA synthetases' appears to be linked to the cause of the syndrome. These autoantibodies may arise after viral infections, or patients may have a genetic predisposition. Treatment is based on the signs and symptoms present in each person but may include corticosteroids, immunosuppressive medications, and/or physical therapy.[1, 2][3, 4] Last updated: 5/26/2016

Source: GARD (NIH)1

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Antisynthetase syndrome: Antisynthetase (AS) syndrome is a clinically heterogeneous form of idiopathic inflammatory myopathy characterized by myositis, arthralgia, Raynaud phenomenon, mechanic hands, interstitial lung disease (ILD, see this term), and serum autoantibodies to aminoacyl transfer RNA synthetases (anti-ARS).2

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References

  1. Source: GARD (NIH): rarediseases.info.nih.gov/ diseases/ 735/ antisynthetase-syndrome
  2. Source: Monarch Initiative

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