Recently, immunosuppression treatment of AA has improved the prognosis greatly and about 2/3 patients recovered following ATG/ALG and CyA treatment, which suggested that the disorder of immune system may play an important role in the development of AA.

• 近年来随着免疫抑制治疗AA获得成功，越来越多的学者认识到免疫功能紊乱尤其是细胞免疫功能的紊乱在AA的发生、发展中起到重要作用。