For example, anti-Jo-1 antibodies are highly prevalent in adult IIM patients and are associated with the ASS.13,29 Other MSA related to ASS are anti-PL-7, anti-PL-12, anti-EJ, anti-OJ, anti-KS, anti-Zo, anti-Ha-YRS, and anti-SRP.35 Anti-SRP autoantibodies are further associated with severe necrotising myopathy.13 Here, UCN2 is linked to acquired idiopathic inflammatory myopathy.