Lupus Erythematosus, also known as lupus, is related to systemic lupus erythematosus and drug-induced lupus erythematosus, and has symptoms including rashes, exanthema and pruritus. An important gene associated with Lupus Erythematosus is CTLA4 (Cytotoxic T-Lymphocyte Associated Protein 4), and among its related pathways/superpathways are Innate Immune System and NF-kappaB Signaling. The drugs Artesunate and Sulfamethoxazole have been mentioned in the context of this disorder. Affiliated tissues include skin and heart, and related phenotypes are homeostasis/metabolism and renal/urinary system