Dialing down the immune response remains at the heart of myriad drug development efforts in autoimmune disease. Targeting cytokines, such as tumor necrosis factor alpha or interleukin-12 (IL-12) and IL-23, IL-6, or IL-17, or modulating immune cell trafficking by targeting sphingosine-1-phosphate receptor or integrins, are therapeutic mainstays. But chronic immunosuppression and all its attendant safety concerns is the price that many autoimmune disease patients pay to remain in remission.