Below is an instruction from Human. Write a response.
    ### Instruction:
    What is (are) Antisynthetase syndrome ?
    ### Response:
    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 and Raynaud phenomenon.
    