“…Recent progress has been propelled by genome-wide association studies (GWAS), which successfully pinpointed a series of mutation sites of the susceptibility genes. These studies highlight the importance of inherited susceptibility in psoriasis development [ 9 ]. One of the most widely recognized susceptibility gene, HLA-Cw*06 locus has been consistently linked to Psoriatic arthritis (PsA) [ 10 , 11 ].…”