IL12RB2 and Behcet disease: Outside the HLA region, several genes have been proposed to play a role in the development of diseases involving uveitis; however only a few loci have been confirmed as genetic risk factors, such as IL23R/IL12RB2 or IL10 in Behçet’s disease (BD) [10,11], and, currently, the overall underlying mechanisms of the uveitis induction remain unclear.