DSG1 and pemphigus: In addition to anti-Dsg IgG autoantibodies, various antibodies targeting other autoantigens have been identified, notably with proteomics studies (Kalantari-Dehaghi et al., 2013), in the sera of a minority of patients with various forms of pemphigus with an unclear pathogenic role (Nguyen et al., 2000b; Ahmed et al., 2016; Amber et al., 2018).