Genome-wide association studies have revealed the link of TL1A gene (Tnfsf15) variants with various autoimmune and inflammatory diseases, including psoriasis (23, 24), IBD (55–58), Graves’ disease (59), uveitis (60), Behcet’s disease (61), and systemic lupus erythematosus (62). This evidence concerns the gene TNFSF15 and psoriasis.