异基因外周血造血干细胞移植治疗75例血液病

为了探讨异基因外周血造血干细胞移植（allo—PBSCT）治疗血液病的疗效及其并发症，对以allo—PBSCT治疗的75例患者进行了回顾性分析。75例患者中慢性髓系白血病（CML）35例、急性髓系白血病30例、重型再生障碍性贫血5例、急性淋巴细胞白血病3例、多发性骨髓瘤1例及阵发睡眠性血红蛋白尿1例。75例中男42例，女33例，年龄13—72岁，清髓性移植66例，非清髓造血干细胞移植9例。HLA全相合和5／6相合61例（其中6例为非亲缘性移植），单倍体相合移植14例。预处理方案中清髓性移植采用：①Cy／TBI，②Bu／Cy；而HLA单倍体相合移植均采用Cy／TBI＋阿糖胞苷；非清髓性移植采用福达拉滨＋TBI／或（CTX＋ATG）。GVHD预防：全部患者输入的干细胞均未进行去除T淋巴细胞及其他处理。HLA全相合移植均采用CsA＋短程MTX方案，HLA单倍体相合移植用CsA＋短程MTX＋ATG＋抗CD25＋霉酚酸酯。移植后复发给予供者淋巴细胞输注（DLI）和／或化疗，CML患者同时加用格列卫治疗。性别不同的供受者应用荧光原位杂交（FISH）技术检测X和Y染色体，性别相同的供受者应用PCR方法检测短片段串联重复（STR）。植入后定期采用PCR及（或）FISH监测微小残留病灶。结果表明：74例患者allo—PBSCT后获得造血重建，并最后转为完全供者嵌合体。造血重建中位时间为15（5—25）天。75例患者中至今46例（61．3％）存活，中位生存期23（2—61）个月。29例患者死亡，其中9例死于疾病复发，7例发生Ⅲ度以上急性GVHD死亡，7例（2例间质性肺炎）因严重感染而死亡，单倍体相合移植患者9例存活者均为完全供者嵌合，平均无病生存时间为30（6—53）个月，5例死亡，平均生存时间为7（2—17）个月，1例CML急变患者移植后100天复发，经DLI治疗达完全缓解，存活至今已53个月。发生巨细胞病毒（CMV）感染16

Allogeneic Peripheral Blood Stem Cell Transplantation for 75 Cases of Hematologic Malignancies

The aim of this study was to explore the clinical effect and complications of allogeneic peripheral blood stem cell transplantation （allo-PBSCT） in hematologic malignancies through retrospective analysis of 75 patients （42 male, 33 female; aged from 13 to 72 years old） received allo-PBSCT from HLA matched （n = 61 ） or haploidentical donors （n = 14 ）. 75 patients included 35 patients with chronic myeloid leukemia （CML）, 30 patients with acute myeloid leukemia, 5 patients with severe aplastic anemia, 3 patients with acute lymphocytic leukemia, one patients with multiple myeloma and one patients with paroxysmal nocturnal hemaglobinuria. Conditioning regimens were （1）Cy/TBI or Bu/Cy; （2）Cy/TBI ＋ Ara-C; （3）fludarabine ＋ TBI/or （CTX ＋ ATG）. Minimal residual disease has been monitored regularly by PCR and FISH. Patients received cyclosporine A and methotrexate or ATG and anti-CD25 monoclonal antibody and mycophenolate mofetil for graft-versus-host disease （GVHD） prophylaxis. Relapsing patients after transplantation received DLI and/or chemotherapy. Patient with CML were treated with imatinib. The results showed that74 patients had hematopoietic reconstitution, and eventually converted to full donor chimerism by FISH or PCR-STR. The median time for the initial hematopoietic reconstitution was 15 （5 -25） days. 46 out of 75 patients were alive and median duration was 23 （2 -61 ） months. Among 29 dead patients, 9 died of disease relapse, 7 died of Ⅲ- Ⅳgrade of acute GVHD and 7 died of severe infection （2 patients developed interstitial pneumonia）. 9 out of 14 patients received haploidentical transplantation were alive, and the time of event-free survival was 30 （6 - 53） months, the mean survival time of 5 died patients was 7 （2 - 17 ） months. 16 patients were infected by cytomegalovirus, 2 of them died of interstitial pneumonia. None of them suffered from veno-occlusive disease in the liver. It is concluded that allo-PBSCT is effective to treat refractory