IL-10 has been reported to have dual functions, namely, proinflammatory and anti-inflammatory effects, which, on the one hand, might inhibit Th1-type autoimmune diseases and aggravate autoantibody-mediated autoimmune diseases, such as lupus erythematosus and myasthenia gravis, and, on the other hand, ameliorate parasite-mediated autoimmune disease [45]. Here, IL10 is linked to myasthenia gravis.