正常情况下,机体的免疫系统对自身的成分是耐受的,并不产生针对自身组织的免疫反应。免疫系统的免疫稳定功能只表现为清除损伤或衰老的自身细胞,但不损害正常的自身细胞。若自身稳定功能失调,机体失去对自身组织成分或细胞抗原的免疫耐受性,导致自身免疫效应细胞和/或自身抗体的产生,并造成 Under normal circumstances, the body’s immune system is resistant to its own components, does not produce an immune response against their own tissues. The immune system’s immune stabilizing function only appears to clear damaged or senescent autologous cells without damaging normal autologous cells. If its own stable dysfunction, the body loses its own components of tissue or cell antigen immune tolerance, leading to the production of autoimmune effector cells and / or autoantibodies, and cause