In this context, cytokines such as IFN-α2, IL-6, IL-23, and chemokine CCL2 had a detection rate of 100%, meanwhile IL-12p70 and TNF-α were not detected in the serum of IIM patients and the cytokine IL-17 was detected in fewer patients probably due to immunosuppressive therapy. The gene discussed is IFNA2; the disease is acquired idiopathic inflammatory myopathy.