CXCL10 and rheumatoid arthritis: The latter chemokine has been implicated in several autoimmune disorders, as CXCL10 expression is increased in patients with psoriasis [15], rheumatoid arthritis [16], systemic sclerosis [17], systemic lupus erythematosus [18], Sjögren’s syndrome [19] and idiopathic inflammatory myopathy [20].