A healthy immune system eliminates harmful foreign pathogens, while being tolerant of self-tissues and organs.  When the immune system malfunctions, cells (T Cells) attack self-tissues and organs, causing autoimmune disease. Current autoimmune disease therapies suppress the immune system, helping to minimize these self-attacks, but also raise susceptibility to harmful foreign pathogens. Immunomodulation, the process in which the immune system reduces self-attacks while properly reacting to fight foreign pathogens, holds great potential for autoimmune disease therapies.