文摘
The antisynthetase syndrome is caracterized by the severity of the interstitial lung disease. Actually, 7 antibodies from the antisynthetases family have been identified. The anti-Jo1 antibody(histidyl tRNA synthetase) is the most usual and associate interstitial lung disease with idiopathic inflammatory myopathy and generally fever, arthritis, Raynauds phenomenon and “mechanics hand”. The interstitial lung disease of Sas has the same features than idiopathic pulmonary fibrosis and systemic sclerosis, usually of “usual interstitial pneumonia” type. Corticosteroid treatement has usually no efficacy on pulmonary disease and other immunosuppressive drugs are often necessary.