再生障碍性贫血 (简称再障 )由于发病机制至今尚不完全明了 ,长期困扰着临床 ,严重危害儿童健康。近年来随着免疫学、细胞及分子生物学的迅速发展 ,人们对再障的发病机制有了更进一步的认识。新近研究表明骨髓造血受一些因子及其受体的调控 ,这些细胞因子中最受注意的是干细胞 Aplastic anemia (referred to as aplastic anemia) as the pathogenesis has not yet fully understood, long plagued the clinical, serious harm to children’s health. In recent years, with the rapid development of immunology, cells and molecular biology, people have a more understanding of the pathogenesis of aplastic anemia. Recent studies have shown that bone marrow hematopoietic regulation by a number of factors and their receptors, the most notable of these cytokines is stem cells