Negative effects of donor specific anti-HLA antibody on poor hematopoietic recovery in patients with hematological diseases receiving haploidentical stem cell transplantation and rituximab for desensitization
10.3760/cma.j.cn112138-20200728-00713
- VernacularTitle:单倍型相合造血干细胞移植前血液病患者体内供者特异性抗人类白细胞抗原抗体水平对利妥昔单抗去敏治疗后造血重建不良的影响分析
- Author:
Zhidong WANG
1
;
Yuqian SUN
;
Chenhua YAN
;
Fengrong WANG
;
Xiaodong MO
;
Meng LYU
;
Xiaosu ZHAO
;
Wei HAN
;
Huan CHEN
;
Yuhong CHEN
;
Yu WANG
;
Lanping XU
;
Xiaohui ZHANG
;
Kaiyan LIU
;
Xiaojun HUANG
;
Yingjun CHANG
Author Information
1. 北京大学人民医院血液科 北京大学血液病研究所 国家血液系统疾病临床医学研究中心 造血干细胞移植治疗血液病北京市重点实验室 100044
- Keywords:
Hematopoietic stem cell transplantation;
HLA antigens;
Rituximab;
Donor specific anti-HLA antibody
- From:
Chinese Journal of Internal Medicine
2021;60(7):644-649
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the incidences and risk factors of poor hematopoietic reconstitution (PHR) in patients with hematological diseases who underwent haploidentical allograft and were treated with rituximab for desensitization.Methods:Eight-three donor specific anti-HLA antibody (DSA, 2000 ≤MFI<10 000) positive patients who underwent haploidentical allograft were prospectively enrolled. Rituximab (375 mg/m 2) was used for desensitization day-3 of conditioning regimen. Incidence and factors associated with PHR, including primary poor graft function and prolonged thrombocytopenia, were investigated. Results:There were 22 males and 61 females with a median age of 39(range: 1-65) years. Kaplan-Meier analysis showed that the 100 day cumulative incidences of neutrophil and platelet engraftment were 93.0% and 90.7%, respectively. The incidences of PHR were 14.7%. The 3-year relapse rate, non-relapse mortality (NRM) rate, event-free survival (EFS), leukemia-free survival (DFS) and overall survival (OS) were 6.5%, 15.1%, 70.8%, 79.4% and 79.4%, respectively. Patients with DSA MFI<5 000 (group A, n=46) experienced lower PHR (4.4% vs. 27.5%, P=0.003), and higher 3-year EFS (79.5% vs. 59.8%, P=0.020) compared to those with DSA MFI≥5 000 (group B, n=37). Multivariate analysis showed that DSA MFI≥5 000 was correlated with PHR ( HR=6.101, P=0.021). PHR was associated with higher NRM ( HR=4.110, P=0.026), lower DFS ( HR=3.656, P=0.019) and OS ( HR=3.656, P=0.019). Conclusion:Our data suggest that high pre-transplant DSA level is a risk factor for PHR in patients with hematological diseases receiving haploidentical allograft and rituximab for desensitization.
