多发性硬化症ＭＳ为一种中枢神经系统ＣＮＳ的脱髓鞘病变，是青少年最常见的导致瘫痪的疾病。本病在我国的发病率正逐年增加。但到目前为止，对这种疾病尚无有效的治疗方法，给社会和医疗保障带来严重的危害。与ＭＳ一样，类风湿性关节炎ＲＡ也是一种器官特异性自身免疫性疾病 Multiple Sclerosis MS is a demyelinating disease of the central nervous system CNS and is the most common cause of paralysis in adolescents. The incidence of this disease in our country is increasing year by year. But so far, there is no effective treatment for this disease, which poses a serious threat to social and medical security. Like MS, rheumatoid arthritis RA is also an organ-specific autoimmune disease