Figure 2 shows the memory T cell profile in the CD4+ and CD8+ compartment in healthy donors (HD) and patients with psoriatic disease, including both cutaneous psoriasis and psoriatic arthritis. The subsets analyzed consist of naïve CD4+ and CD8+ T cells, as well as TCM, TEM, and terminally differentiated effector memory T cells (TEMRA). Here, CD4 is linked to psoriatic arthritis.