非亲缘供者外周血造血干细胞移植治疗恶性血液病

为了探讨非亲缘供者外周血造血干细胞移植(UD-HSCT)治疗恶性血液病的可行治疗方案和疗效,应用高分辨HLA配型(HLA-A、-B、-DR)完全相合或1个位点不合的非亲缘供者外周血造血干细胞移植治疗恶性血液病10例,预处理方案采用马利兰、环磷酰胺、阿糖胞苷、甲基环己亚硝脲和抗胸腺细胞球蛋白,以霉酚酸酯、环孢素A加短疗程的甲氨喋呤、舒莱预防移植物抗宿主病(GVHD)。结果显示,中性粒细胞回升>0.5×109/L的中位时间为13天,血小板回升>20×109/L的中位时间为17.5天;28天STR-PCR检测显示,10例均为完全供者型;急性GVHD3例(Ⅰ度1例自行缓解,Ⅲ度1例治愈,Ⅵ度1例死亡)。结论:在非亲缘供者外周血造血干细胞移植治疗恶性血液病过程中采用上述预处理方案和GVHD预防措施是可行而且有效的。

Unrelated Donor Peripheral Blood Stem Cell Transplantation for Hematologic Malignancies

This study was aimed to explore feasibility and efficacy of unrelated donor peripheral blood stem cell transplantation (UD-PBSCT) in treatment of hematologic malignancies. Ten patients with hematologic malignancies underwent high resolution DNA based typing HLA-matched or 1 locus mismatched UD-PBSCT. Busulfan, cyclophosphamide, Ara-C, MeCCNU and antithymocyte globulin (ATG) were used for preconditioning regimen in all cases. All patients received mycophenolate mofetile, cyclosporin A and short-term methotrexate with CD25 antibody as the graft-versus-host disease (GVHD) prophylaxis. The results showed that rapid engraftment was observed in all cases who presented full donor chimerism at 28 days post transplantation by STR-PCR. The median time of neutrophil recovery > 0.5 x 10(9)/L, platelet recovery > 20 x 10(9)/L was 13, 17.5 days respectively after transplantation. The incidence of acute GVHD was 3 cases (one case with grade I was recovered from GVHD by himself, one case with grade III was cured, one case with grade VI was died). It is concluded that above-mentioned preconditioning regimen and GVHD prophylaxis are effective approaches for unrelated donor peripheral blood stem cell transplantation in hematopoietic malignancies.