The immune response in autoimmune illness is similar to that seen in infections, with the exception that self antigens are (or become) the adaptive immune system's target. These self antigens may be responsible for a process that is exclusive to a single organ. When our immune system assaults our own tissues, we get autoimmune disease. T-cell receptors and B-cell receptors, like other adaptive immune responses, are focused on specific antigens. In contrast to infection, the antigens recognized by these cells are processed from proteins inside the target organ, resulting in a persistent inflammatory response that affects the tissue's normal function

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