CD80 and muscular dystrophy: For example, pathways unique to BPS but not BPF include Humoral Immunity in Vitiligo, Treg-Cell Activation in Diabetes Mellitus, and CD80 triggering AP-1 Expression Targets while pathways unique to BPF but not BPS include IgE Receptors activating Targets in Lymphoid System and Blood, TLR9 Expression Targets, and Muscular Dystrophy, Facioscapulohumeral.