Alloantibodies that are non ABO Alloimmunization to protein antigens happens only after exposure, in contrast to ABO isohaemagglutinins, which are present naturally, even in the absence of prior exposure. It is recogn...Alloantibodies that are non ABO Alloimmunization to protein antigens happens only after exposure, in contrast to ABO isohaemagglutinins, which are present naturally, even in the absence of prior exposure. It is recognized that while non-ABO RBC antibodies are less common than ABO antibodies, they generate essentially the same issues that lead to unfavorable clinical results. If non-ABO alloantibodies are identified early on, these issues related complications may be avoided This call for an in-depth understanding of the recipient and donor’s ABO-Rh grouping, antibody screening, and the phenotype of certain antigens. Equally important, the temporal association time between transplantation and hemolysis can help identify the underlying mechanism of hemolysis and direct appropriate management. Therefore, for that, it is crucial to identify the etiology of post-HSCT anemia for prevention and therapy, in addition to a thorough grasp of the mechanism of anemia in non-ABO-incompatible HSCT and the temporal link between HSCT and anemia. Finding the cause of post-HSCT anemia is essential for prevention and therapy, in addition to a thorough grasp of the mechanism of anemia in non-ABO-incompatible HSCT and the temporal link between HSCT and anemia. Therefore, for that, it is crucial to identify the etiology of post-HSCT anemia. In this case report review, we would like to highlight the vital role of transfusion medicine services and stem cell clinical teams in paying particular attention to the clinical significance of non-ABO alloantibodies involved to avoid causing overt hemolysis of incompatible donor RBCs or delayed erythropoiesis. Considering the fact that some of the Haematopoietic stem cell transplant centers do not give an attention to the other non-ABO RBC antigens.展开更多
文摘 对急性白血病(AL)患者自体造血干细胞移植(Auto＿HSCT)前进行大剂量化疗,移植后给白细胞介素 2(IL 2)免疫治疗以降低AL患者Auto＿HSCT后的复发率,延长患者的生存期.10例AL第一次缓解期(CR 1)的患者进入研究.移植前急性淋巴细胞白血病(ALL)患者3例均接受大剂量甲氨碟呤1疗程及大剂量阿糖胞苷(HD Ara C)加蒽环类抗肿瘤药1疗程.急性非淋巴细胞白血病(ANLL)患者7例接受HD Ara C加蒽环类抗肿瘤药2疗程.化疗结束后给患者行Auto＿HSCT治疗.预处理方案为:CY/TBI;MAC或EAC方案.移植的CD34+细胞5.5×106～12.2×106/kg.患者造血重建后给IL 21×106～2×106μ治疗每天1次,5d为1疗程.患者均接受3～5疗程的治疗.经以上序惯治疗后,1例ALL患者14月后复发,经化疗无效死亡.9/10(90.00%)例无病生存至今,平均生存期37.10月(37.1±24.98),明显延长.可见对AL患者Auto＿HSCT前大剂量化疗,最大限度降低患者体内白血病负荷;移植后免疫治疗清除微小残留病,可能是降低AL患者Auto＿HSCT后复发,延长患者生存期的有效途径.
文摘Alloantibodies that are non ABO Alloimmunization to protein antigens happens only after exposure, in contrast to ABO isohaemagglutinins, which are present naturally, even in the absence of prior exposure. It is recognized that while non-ABO RBC antibodies are less common than ABO antibodies, they generate essentially the same issues that lead to unfavorable clinical results. If non-ABO alloantibodies are identified early on, these issues related complications may be avoided This call for an in-depth understanding of the recipient and donor’s ABO-Rh grouping, antibody screening, and the phenotype of certain antigens. Equally important, the temporal association time between transplantation and hemolysis can help identify the underlying mechanism of hemolysis and direct appropriate management. Therefore, for that, it is crucial to identify the etiology of post-HSCT anemia for prevention and therapy, in addition to a thorough grasp of the mechanism of anemia in non-ABO-incompatible HSCT and the temporal link between HSCT and anemia. Finding the cause of post-HSCT anemia is essential for prevention and therapy, in addition to a thorough grasp of the mechanism of anemia in non-ABO-incompatible HSCT and the temporal link between HSCT and anemia. Therefore, for that, it is crucial to identify the etiology of post-HSCT anemia. In this case report review, we would like to highlight the vital role of transfusion medicine services and stem cell clinical teams in paying particular attention to the clinical significance of non-ABO alloantibodies involved to avoid causing overt hemolysis of incompatible donor RBCs or delayed erythropoiesis. Considering the fact that some of the Haematopoietic stem cell transplant centers do not give an attention to the other non-ABO RBC antigens.
