辅助性T细胞与再生障碍性贫血的关系及研究展望

摘要

Objective To review the pathogenesis and research prospects in AA.[Methods] In this paper, we summarize the imbalance mechanism of Th1/Th2, and the relationship of fol icular helper T cells(Tfh),Thl7, Th9 ,Th22 with aplastic anemia. [Results]The imbalance of Th1/Th2 cells leads to bone marrow failure. Immunosuppressive therapy can inhibit Th1 cell, restore the balance. The pathogenesis of Tfh, Thl7, Th9 and Th22 is closely correlated with AA. [Conclusion] AA pathogenesis is complex, CD4+cellsubsets is related to the occurrence and development of AA. Detect the levels of immune cells in the serum of patients is beneficial for diagnosis and treatment of AA.%[目的]综述了Th细胞各亚群与再生障碍性贫血（aplastic anemia, AA)相关的发病机制，并针对其近来的研究进行展望。[方法]查阅近10年国内相关文献资料并总结Th1/Th2失衡机制、滤泡辅助性T细胞（Tfh），Thl7，Th9和Th22与AA的关系。[结果]Th1/Th2细胞比例失衡，可引起骨髓造血功能衰竭。免疫抑制治疗可抑制Th1细胞，恢复Th1/Th2比例平衡，从而使造血功能恢复。Tfh、Thl7、Th9和Th22与AA的发病机制密切相关。[结论]AA的免疫发病机制复杂，CD4+的细胞亚群及其多种相关的细胞因子与AA发生发展相关，全面检测AA患者血清中各种免疫细胞的比例变化和相关免疫功能分子的水平变化有利于AA的诊治。