PemphigusAutoimmune DiseasesDesmoglein 3Desmoglein 1AcantholysisDesmogleinsAutoantibodiesAutoantigensAutoimmunityBlisterSkin Diseases, VesiculobullousParaneoplastic SyndromesLupus Erythematosus, SystemicImmunoglobulin GDesmosomesPemphigoid, BullousFluorescent Antibody Technique, DirectPlakinsKeratinocytesEncephalomyelitis, Autoimmune, ExperimentalPemphigus, Benign FamilialMouth DiseasesEpidermisCadherinsT-LymphocytesDesmoplakinsPulse Therapy, DrugAntibodies, AntinuclearSjogren's SyndromeAutoimmune Diseases of the Nervous SystemOral UlcerSkinDesmoglein 2DesmocollinsB-LymphocytesMice, Inbred MRL lprImmunosuppressive AgentsMice, Inbred C57BLLymphocyte ActivationImmunoglobulins, Intravenous