Unfortunately, the patients with psoriasis with PsA are low in number in our cohort and the data of a higher expression of these antibodies in patients with PsA is not replicated (18); correlation between cit-LL37 CD4 T-cell responses and antibodies to LL37, cit-LL37, or carb-LL37 was unlikely to be revealed in such a small group. This evidence concerns the gene CD4 and psoriasis.