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Oyama T, Fujiwara SI, Tominaga R, Yokoyama D, Noguchi A, Furuki S, Koyama S, Murahashi R, Nakashima H, Hyodo K, Ikeda T, Kawaguchi SI, Toda Y, Nagayama T, Umino K, Minakata D, Morita K, Ashizawa M, Yamamoto C, Hatano K, Sato K, Otsuki I, Ohmine K, Kanda Y. Effects of CD34 + cell dose on engraftment and long-term outcomes after allogeneic bone marrow transplantation. Clin Transplant 2024; 38:e15313. [PMID: 38581299 DOI: 10.1111/ctr.15313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 03/21/2024] [Accepted: 03/24/2024] [Indexed: 04/08/2024]
Abstract
BACKGROUND The number of CD34+ cells in the graft is generally associated with time to engraftment and survival in transplantation using cord blood or allogeneic peripheral blood stem cells. However, the significance of abundant CD34+ in bone marrow transplantation (BMT) remained unclear. METHODS We retrospectively reviewed 207 consecutive adult patients who underwent their first BMT at Jichi Medical University between January 2009 and June 2021. RESULTS The median nucleated cell count (NCC) and CD34+ cell dose were 2.17 × 108/kg (range .56-8.52) and 1.75 × 106/kg (.21-5.84), respectively. Compared with 104 patients in the low CD34+ group (below the median), 103 patients in the high CD34+ group (above the median) showed faster engraftment at day +28 in terms of neutrophil (84.6% vs. 94.2%; p = .001), reticulocyte (51.5% vs. 79.6%; p < .001), and platelet (39.4% vs. 72.8%; p < .001). There were no significant differences in overall survival, relapse, nonrelapse mortality, acute or chronic graft-versus-host disease, or infectious complications between the two groups in univariate and multivariate analyses. Low or high NCC had no significant effect on overall survival, nonrelapse mortality, cumulative incidence of relapse and graft-versus-host disease, either. While a positive correlation was observed between NCC and the CD34+ cell dose, a high CD34+ cell dose was associated with rapid hematopoietic recovery, even in patients with NCC below the median. CONCLUSION Measurement of CD34+ cell dose in addition to NCC was useful for predicting hematopoietic recovery, but seemed to have little influence on the long-term outcome in BMT.
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Affiliation(s)
- Takashi Oyama
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Shin-Ichiro Fujiwara
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
- Division of Cell Transplantation and Transfusion, Jichi Medical University, Tochigi, Japan
| | - Ryutaro Tominaga
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Daizo Yokoyama
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Atsuto Noguchi
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Shuka Furuki
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Shunsuke Koyama
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Rui Murahashi
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Hirotomo Nakashima
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kazuki Hyodo
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Takashi Ikeda
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Shin-Ichiro Kawaguchi
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Yumiko Toda
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Takashi Nagayama
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
- Division of Cell Transplantation and Transfusion, Jichi Medical University, Tochigi, Japan
| | - Kento Umino
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Daisuke Minakata
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kaoru Morita
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Masahiro Ashizawa
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Chihiro Yamamoto
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kaoru Hatano
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Kazuya Sato
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Ikuko Otsuki
- Division of Cell Transplantation and Transfusion, Jichi Medical University, Tochigi, Japan
| | - Ken Ohmine
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
| | - Yoshinobu Kanda
- Division of Hematology, Department of Medicine, Jichi Medical University, Tochigi, Japan
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Yao D, Li B, Chu X, Pan J, Meng L, Hu Y, Gao L, Li J, Tian Y, Hu S. Association between CD34 + and CD3 + T-cells in allogeneic grafts and acute graft-versus-host disease in children undergoing allogeneic hematopoietic stem cell transplantation: A single-center study. Transpl Immunol 2023; 77:101779. [PMID: 36596428 DOI: 10.1016/j.trim.2022.101779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 12/25/2022] [Accepted: 12/28/2022] [Indexed: 01/01/2023]
Abstract
BACKGROUND Acute graft-versus-host disease (aGVHD) is a major complication of allogeneic hematopoietic stem cell transplantation (allo-HSCT). We examined the association between the composition of the cell subsets present in allogeneic grafts (allografts) and the occurrence and severity of aGVHD in pediatric patients. METHODS We retrospectively analyzed 80 consecutive pediatric patients undergoing allo-HSCT at our center. RESULTS Both univariate and multivariate analyses showed that the number of CD34+ and CD3+ T-cells in allografts were the two highest risk factors associated with II-IV aGVHD. Using receiver operating characteristic analysis, the cutoff levels of the allo-HSCT cell doses were used to divide the recipients into low-dose and high-dose groups. The 100-day cumulative incidence of II-IV aGVHD in the high-dose CD34+ and CD3+ T-cells group was significantly higher than that of the low-dose group (CD34+: 57% vs. 29%, p = 0.009; CD3+: 63% vs. 18%, p < 0.001). No other clinical factors or cell subsets correlated with aGVHD incidence. CONCLUSIONS Our analysis indicates that the CD34+ and CD3+ T-cell numbers in the allografts could be the risk factors for the development of severe aGVHD (level II-IV). Further studies should aim to optimize the critical number of CD34+ and CD3+ T-cells to reduce the risk of severe aGVHD occurrence in pediatric patients.
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Affiliation(s)
- Di Yao
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China; Department of Pediatrics, Hangzhou First People's Hospital, Hangzhou, China
| | - Bohan Li
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China
| | - Xinran Chu
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China
| | - Jian Pan
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China
| | - Lijun Meng
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China
| | - Yixin Hu
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China
| | - Li Gao
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China
| | - Jie Li
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China
| | - Yuanyuan Tian
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China.
| | - Shaoyan Hu
- Department of Hematology, Children's Hospital of Soochow University, Suzhou, China; Children's Hematology and Oncology Center of Jiangsu Province, Jiangsu, China.
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Wang Y, Mo X, Cheng Y, Chen Y, Lv M, Wang F, Yan C, Han W, Chen H, Xu L, Wang Y, Zhang X, Liu K, Huang X, Chang Y. Effects of CD34 + cell dose on haematopoietic recovery in acute lymphoblastic leukaemia patients with positive pretransplant measurable residual disease. Int J Lab Hematol 2023; 45:72-81. [PMID: 36193870 DOI: 10.1111/ijlh.13974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 09/06/2022] [Indexed: 01/18/2023]
Abstract
INTRODUCTION A higher CD34+ cell dose in allografts is associated with faster haematopoietic recovery after allogeneic haematopoietic stem cell transplantation (allo-HSCT). Leukaemia stem cells impair normal bone marrow (BM) niches and induce BM failure during leukemogenesis. However, whether measurable residual disease (MRD), known as the persistence of low-level leukaemic cells, could influence the effects of CD34+ cell dose on haematopoietic recovery after transplantation in acute lymphoblastic leukaemia (ALL) patients is unknown. METHODS A total of 975 ALL patients were enrolled and classified into pre-HSCT MRD-positive and MRD-negative subgroups. Cox proportional hazard regression models were built for time-to-event outcomes. Multivariate analysis was performed to determine independent influencing factors from the univariate analysis. RESULTS An appropriate CD34+ cell dose was positively associated with faster haematopoietic recovery in the total ALL population. More importantly, in pre-HSCT MRD-positive ALL patients, a higher CD34+ cell dose (≥2.76 × 106 /kg) was related to faster neutrophil (HR 1.330, 95% CI 1.045-1.692, p = 0.021) and platelet engraftment (HR 1.808, 95% CI 1.412-2.316, p < 0.001) in multivariate analysis. CD34+ cell dose was a crucial factor associated with either engraftment or transplant outcomes, although we did not demonstrate direct correlations of CD34+ cell dose with relapse, TRM, LFS or OS after allo-HSCT. CONCLUSION Our results indicated that no additional CD34+ stem and progenitor cell harvests were needed to ensure successful haematopoietic recovery in pre-HSCT MRD-positive patients compared to pre-HSCT MRD-negative patients.
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Affiliation(s)
- Yuewen Wang
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Xiaodong Mo
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Yifei Cheng
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Yuhong Chen
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Meng Lv
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Fengrong Wang
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Chenhua Yan
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Wei Han
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Huan Chen
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Lanping Xu
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Yu Wang
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Xiaohui Zhang
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Kaiyan Liu
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
| | - Xiaojun Huang
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China.,Peking-Tsinghua Center for Life Sciences, Beijing, China.,Research Unit of Key Technique for Diagnosis and Treatments of Hematologic Malignancies, Chinese Academy of Medical Sciences, Beijing, China
| | - Yingjun Chang
- Peking University People's Hospital and Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, People's Republic of China
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Chen YF, Li J, Xu LL, Găman MA, Zou ZY. Allogeneic stem cell transplantation in the treatment of acute myeloid leukemia: An overview of obstacles and opportunities. World J Clin Cases 2023; 11:268-291. [PMID: 36686358 PMCID: PMC9850970 DOI: 10.12998/wjcc.v11.i2.268] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 12/02/2022] [Accepted: 01/05/2023] [Indexed: 01/12/2023] Open
Abstract
As an important treatment for acute myeloid leukemia, allogeneic hematopoietic stem cell transplantation (allo-HSCT) plays an important role in reducing relapse and improving long-term survival. With rapid advancements in basic research in molecular biology and immunology and with deepening understanding of the biological characteristics of hematopoietic stem cells, allo-HSCT has been widely applied in clinical practice. During allo-HSCT, preconditioning, the donor, and the source of stem cells can be tailored to the patient’s conditions, greatly broadening the indications for HSCT, with clear survival benefits. However, the risks associated with allo-HSCT remain high, i.e. hematopoietic reconstitution failure, delayed immune reconstitution, graft-versus-host disease, and post-transplant relapse, which are bottlenecks for further improvements in allo-HSCT efficacy and have become hot topics in the field of HSCT. Other bottlenecks recognized in the current treatment of individuals diagnosed with acute myeloid leukemia and subjected to allo-HSCT include the selection of the most appropriate conditioning regimen and post-transplantation management. In this paper, we reviewed the progress of relevant research regarding these aspects.
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Affiliation(s)
- Yong-Feng Chen
- Department of Basic Medical Sciences, School of Medicine of Taizhou University, Taizhou University, Taizhou 318000, Zhejiang Province, China
| | - Jing Li
- Department of Histology and Embryology, North Sichuan Medical College, Nanchong 637000, Sichuan Province, China
| | - Ling-Long Xu
- Department of Hematology, Taizhou Central Hospital, Taizhou 318000, Zhejiang Province, China
| | - Mihnea-Alexandru Găman
- Faculty of Medicine, “Carol Davila” University of Medicine and Pharmacy, Bucharest 050474, Romania
| | - Zhen-You Zou
- Department of Scientific Research,Brain Hospital of Guangxi Zhuang Autonomous Region, Liuzhou 545005, Guangxi Zhuang Autonomous Region, China
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Zhang R, Lu X, Tang LV, Wang H, Yan H, You Y, Zhong Z, Shi W, Xia L. Influence of graft composition in patients with hematological malignancies undergoing ATG-based haploidentical stem cell transplantation. Front Immunol 2022; 13:993419. [PMID: 36189288 PMCID: PMC9520486 DOI: 10.3389/fimmu.2022.993419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
To determine the influence of graft composition in haplo-HSCT, we summarized the long-term consequences of 251 consecutive transplantations from haploidentical donors. For donor-recipient HLA3/6-matched setting, 125 cases used G-CSF-mobilized BM and PBSCs mixtures, while 126 cases only used G-CSF-mobilized PBSCs in HLA4/6-matched transplantation. On the one hand, we wanted to explore the effect of harvests (CD34+ cells and TNCs dosages) on transplantation outcome in the context of haplo-HSCT no matter HLA4/6 or HLA3/6-matched setting. On the other hand, for patients using G-CSF-mobilized BM and PBSCs combination in HLA3/6-matched setting, we attempted to analyze whether TNCs or CD34+ cells from G-CSF-mobilized BM or G-CSF-mobilized PBSCs play the most paramount role on transplantation prognosis. Collectively, patients with hematologic malignancies receiving G-CSF-primed BM and PBSCs harvests had comparable consequences with patients only receiving G-CSF-mobilized PBSCs. Moreover, when divided all patients averagely according to the total amount of transfused nucleated cells, 3-year TRM of the intermediate group (13.06-18.05×108/kg) was only 4.9%, which was remarkably reduced when compared to lower and higher groups with corresponding values 18.3%, 19.6% (P=0.026). The 3-year probabilities of OS and DFS of this intermediate group were 72.6% and 66.5%, which were slightly improved than the lower and higher groups. Most importantly, these data suggest that the transfused nucleated cells from G-CSF-primed BM above than 5.20×108/kg could achieve remarkably lower TRM in haplo-HSCT receiving G-CSF-mobilized BM and PBSCs harvests. These encouraging results suggested that we could improve the efficacy of haplo-HSCT by adjusting the component and relative ratio of transfused graft cells. Nevertheless, the above findings should be confirmed in a randomized prospective comparative research with adequate follow-up.
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Affiliation(s)
- Ran Zhang
- Department of Hematology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Xuan Lu
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Liang V. Tang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Huafang Wang
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Han Yan
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yong You
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Zhaodong Zhong
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Shi
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Linghui Xia, ; Wei Shi,
| | - Linghui Xia
- Institute of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- *Correspondence: Linghui Xia, ; Wei Shi,
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Lowsky R, Strober S. Establishment of Chimerism and Organ Transplant Tolerance in Laboratory Animals: Safety and Efficacy of Adaptation to Humans. Front Immunol 2022; 13:805177. [PMID: 35222384 PMCID: PMC8866443 DOI: 10.3389/fimmu.2022.805177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 01/03/2022] [Indexed: 11/13/2022] Open
Abstract
The definition of immune tolerance to allogeneic tissue and organ transplants in laboratory animals and humans continues to be the acceptance of the donor graft, rejection of third-party grafts, and specific unresponsiveness of recipient immune cells to the donor alloantigens in the absence of immunosuppressive treatments. Actively acquired tolerance was achieved in mice more than 60 years ago by the establishment of mixed chimerism in neonatal mice. Once established, mixed chimerism was self-perpetuating and allowed for acceptance of tissue transplants in adults. Successful establishment of tolerance in humans has now been reported in several clinical trials based on the development of chimerism after combined transplantation of hematopoietic cells and an organ from the same donor. This review examines the mechanisms of organ graft acceptance after establishment of mixed chimerism (allo-tolerance) or complete chimerism (self-tolerance), and compares the development of graft versus host disease (GVHD) and graft versus tumor (GVT) activity in complete and mixed chimerism. GVHD, GVT activity, and complete chimerism are also discussed in the context of bone marrow transplantation to treat hematologic malignancies. The roles of transient versus persistent mixed chimerism in the induction and maintenance of tolerance and organ graft acceptance in animal models and clinical studies are compared. Key differences in the stability of mixed chimeras and tolerance induction in MHC matched and mismatched rodents, large laboratory animals, and humans are examined to provide insights into the safety and efficacy of translation of results of animal models to clinical trials.
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Affiliation(s)
- Robert Lowsky
- Division of Blood and Marrow Transplantation and Cancer Cellular Therapy, Stanford University School of Medicine, Stanford, CA, United States
| | - Samuel Strober
- Division of Immunology and Rheumatology, Stanford University School of Medicine, Stanford, CA, United States
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Shen MZ, Hong SD, Wang J, Zhang XH, Xu LP, Wang Y, Yan CH, Chen H, Chen YH, Han W, Wang FR, Wang JZ, Liu KY, Huang XJ, Mo XD. A Predicted Model for Refractory/Recurrent Cytomegalovirus Infection in Acute Leukemia Patients After Haploidentical Hematopoietic Stem Cell Transplantation. Front Cell Infect Microbiol 2022; 12:862526. [PMID: 35392613 PMCID: PMC8981086 DOI: 10.3389/fcimb.2022.862526] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2022] [Accepted: 02/23/2022] [Indexed: 11/13/2022] Open
Abstract
ObjectiveWe aimed to establish a model that can predict refractory/recurrent cytomegalovirus (CMV) infection after haploidentical donor (HID) hematopoietic stem cell transplantation (HSCT).MethodsConsecutive acute leukemia patients receiving HID HSCT were enrolled (n = 289). We randomly selected 60% of the entire population (n = 170) as the training cohort, and the remaining 40% comprised the validation cohort (n = 119). Patients were treated according to the protocol registered at https://clinicaltrials.gov (NCT03756675).ResultsThe model was as follows: Y = 0.0322 × (age) – 0.0696 × (gender) + 0.5492 × (underlying disease) + 0.0963 × (the cumulative dose of prednisone during pre-engraftment phase) – 0.0771 × (CD34+ cell counts in graft) – 1.2926. The threshold of probability was 0.5243, which helped to separate patients into high- and low-risk groups. In the low- and high-risk groups, the 100-day cumulative incidence of refractory/recurrent CMV was 42.0% [95% confidence interval (CI), 34.7%–49.4%] vs. 63.7% (95% CI, 54.8%–72.6%) (P < 0.001) for total patients and was 50.5% (95% confidence interval (CI), 40.9%–60.1%) vs. 71.0% (95% CI, 59.5%–82.4%) (P = 0.024) for those with acute graft-versus-host disease. It could also predict posttransplant mortality and survival.ConclusionWe established a comprehensive model that could predict the refractory/recurrent CMV infection after HID HSCT.Clinical Trial Registrationhttps://clinicaltrials.gov, identifier NCT03756675.
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Affiliation(s)
- Meng-Zhu Shen
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Shen-Da Hong
- National Institute of Health Data Science at Peking University, Peking University Health Science Center, Beijing, China
| | - Jie Wang
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
- Department of Hematology, The Second Affiliated Hospital of Shandong First Medical University, Shandong, China
| | - Xiao-Hui Zhang
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Lan-Ping Xu
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Yu Wang
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Chen-Hua Yan
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Huan Chen
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Yu-Hong Chen
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Wei Han
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Feng-Rong Wang
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Jing-Zhi Wang
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Kai-Yan Liu
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
| | - Xiao-Jun Huang
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China
- Research Unit of Key Technique for Diagnosis and Treatments of Hematologic Malignancies, Chinese Academy of Medical Sciences, Beijing, China
| | - Xiao-Dong Mo
- Peking University People’s Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing, China
- Research Unit of Key Technique for Diagnosis and Treatments of Hematologic Malignancies, Chinese Academy of Medical Sciences, Beijing, China
- *Correspondence: Xiao-Dong Mo,
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Mani S, Aleixo GFP, Rybicki L, Majhail NS, Mossad SB. Secular trends of Blood stream infections in allogeneic hematopoietic cell transplant recipients 72 hours prior to death. Transpl Infect Dis 2021; 23:e13631. [PMID: 33969591 DOI: 10.1111/tid.13631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 04/19/2021] [Accepted: 04/25/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Blood stream infections (BSI) frequently cause morbidity and mortality in allogeneic (allo) hematopoietic cell transplant (HCT) recipients. Characteristics of causative organisms shortly before death have not been previously described. Early treatment with antimicrobial agents targeting the recent surge in multidrug-resistant (MDR) pathogens may lead to better outcomes. METHODS This is retrospective study including 529 allo HCT recipients who died between 2000 and 2013. All patients who had BSI that happened 72 hours before death were included. BSI and criteria for antimicrobial resistance were defined according to the Centers for Disease Control and Prevention and the National Healthcare Safety Network surveillance criteria. RESULTS Overall, 104 BSI were identified from 91 patients. Bacterial infections accounted for 87% of the infections which were comprised by 37% gram-negative organisms and 50% gram-positive bacteria. The most common species were Enterococcus (30%), Staphylococcus (16%), and Pseudomonas (16%). Most enterococci were vancomycin resistant (87%), 100% of staphylococci were resistant to methicillin, and 64% of Pseudomonas were MDR. Over time there was a significant increase in vancomycin-resistant enterococcal (P = .01) and gram-negative BSI (P = .01). Blood stream infections were either the primary or secondary cause of death in 53% of patients. CONCLUSIONS In allo HCT recipients, vancomycin-resistant enterococcal infections caused the majority of BSI 72 hours prior to death. Our findings provide information that may guide empiric antibiotic coverage in critically ill HCT recipients.
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Affiliation(s)
- Shylaja Mani
- Department of Hematology Oncology, Adena Cancer Center, Chillicothe, OH, USA
| | | | - Lisa Rybicki
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, OH, USA
| | - Navneet S Majhail
- Department of Hematology and Medical Oncology, Cleveland Clinic, Cleveland, OH, USA
| | - Sherif B Mossad
- Department of Infectious Diseases, Respiratory Institute Cleveland Clinic, Cleveland, OH, USA
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9
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Arcuri LJ, Schirmer M, Colares M, Maradei S, Tavares R, Moreira MCR, Araujo RDC, Lerner D, Pacheco AGF. Impact of Anti-CMV IgG Titers and CD34 Count Prior to Hematopoietic Stem Cell Transplantation from Alternative Donors on CMV reactivation. Biol Blood Marrow Transplant 2020; 26:e275-e279. [DOI: 10.1016/j.bbmt.2020.07.034] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/21/2020] [Accepted: 07/25/2020] [Indexed: 01/10/2023]
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10
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Kim-Wanner SZ, Luxembourg B, Schmidt AH, Schäfer R, Möller N, Herbert E, Poppe C, Hümmer C, Bunos M, Seifried E, Bonig H. Introduction of principles of blood management to healthy donor bone marrow harvesting. Vox Sang 2020; 115:802-812. [PMID: 32633825 DOI: 10.1111/vox.12972] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Revised: 05/20/2020] [Accepted: 06/09/2020] [Indexed: 12/20/2022]
Abstract
BACKGROUND AND OBJECTIVES Patient blood (more accurately: haemoglobin, Hb) management (PBM) aims to optimize endogenous Hb production and to minimize iatrogenic Hb loss while maintaining patient safety and optimal effectiveness of medical interventions. PBM was adopted as policy for patients by the World Health Organization (WHO), and, all the more, should be applied to healthy donors. MATERIALS AND METHODS Observational data from 489 bone marrow (BM) donors were retrospectively analysed, and principles of patient blood management were applied to healthy volunteer BM donations. RESULTS AND CONCLUSION We managed to render BM aspiration safe for donors, notably completely avoiding the collection of autologous blood units and blood transfusions through iron management, establishment and curation of high-yield aspiration technique, limitation of collection volume to 1·5% of donor body weight and development of volume prediction algorithms for the requested cell dose.
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Affiliation(s)
- Soo-Zin Kim-Wanner
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany
| | - Beate Luxembourg
- Department of Hemostaseology, Justus Liebig University, Giessen, Germany
| | | | - Richard Schäfer
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany
| | - Nadine Möller
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany
| | - Eva Herbert
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany
| | - Carolin Poppe
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany
| | - Christiane Hümmer
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany
| | - Milica Bunos
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany
| | - Erhard Seifried
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany.,Goethe University, Institute for Transfusion Medicine and Immunohematology, Frankfurt, Germany
| | - Halvard Bonig
- German Red Cross Blood Service Baden-Württemberg-Hessen, Institute Frankfurt, Frankfurt, Germany.,Goethe University, Institute for Transfusion Medicine and Immunohematology, Frankfurt, Germany.,Department of Medicine/Hematology, University of Washington, Seattle, WA, USA
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11
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Wen Q, Zhao HY, Yao WL, Zhang YY, Fu HX, Wang Y, Xu LP, Zhang XH, Kong Y, Huang XJ. Monocyte subsets in bone marrow grafts may contribute to a low incidence of acute graft-vs-host disease for young donors. J Cell Mol Med 2020; 24:9204-9216. [PMID: 32608128 PMCID: PMC7417711 DOI: 10.1111/jcmm.15557] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2020] [Revised: 05/19/2020] [Accepted: 06/08/2020] [Indexed: 12/20/2022] Open
Abstract
Young donors are associated with a lower cumulative incidence of acute graft‐vs‐host disease (aGVHD) after allogenic haematopoietic stem cell transplantation (allo‐HSCT) than old donors. Although grafts are harvested from healthy donors, it is unclear whether donor age is associated with aGVHD occurrence owing to its effect on cell compositions in grafts. Moreover, the differences in monocyte subsets in grafts between young and old donors and the association between monocyte subsets in bone marrow (BM) grafts and aGVHD remain to be elucidated. In the current study, non‐classical monocytes and the CD4+/CD8+ T cell ratio were remarkably decreased in BM grafts in donors <30 years old. Multivariate analysis further revealed that the level of non‐classical monocytes in BM grafts (≥0.31 × 106/kg) was an independent risk factor for the occurrence of II‐IV aGVHD. In summary, our data indicate that non‐classical monocytes in BM grafts may help identify patients at high risk for aGVHD after allo‐HSCT. Although further validation is required, our results suggest that the low level of non‐classical monocytes and a low ratio of CD4+/CD8+ T cell in BM grafts may be correlated with the lower incidence of aGVHD in young donors.
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Affiliation(s)
- Qi Wen
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Hong-Yan Zhao
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Wei-Li Yao
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Yuan-Yuan Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Hai-Xia Fu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Yu Wang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Lan-Ping Xu
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Xiao-Hui Zhang
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Yuan Kong
- Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
| | - Xiao-Jun Huang
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou, China.,Peking University People's Hospital, Peking University Institute of Hematology, National Clinical Research Center for Hematologic Disease, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Collaborative Innovation Center of Hematology, Peking University, Beijing, China
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12
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Teofili L, Chiusolo P, Valentini CG, Metafuni E, Bellesi S, Orlando N, Bianchi M, Giammarco S, Sica S, Bacigalupo A. Bone marrow haploidentical transplant with post-transplantation cyclophosphamide: does graft cell content have an impact on main clinical outcomes? Cytotherapy 2020; 22:158-165. [PMID: 32057614 DOI: 10.1016/j.jcyt.2020.01.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 12/24/2019] [Accepted: 01/11/2020] [Indexed: 12/20/2022]
Abstract
We analyzed data relative to cell content in 88 consecutive patients receiving HLA haploidentical bone marrow (BM) transplants with post-transplantation cyclophosphamide (PT-CY). Median age was 54.5 (range, 17-72); diagnoses were acute leukemia (n = 46), lymphoproliferative disorders (n = 24), myelofibrosis (n = 11) and myelodysplastic syndromes (n = 5). Total nucleated cell (TNC) and CD34+, CD3+, CD4+ and CD8+ cell doses were stratified as higher than first, second and third quartile and the dose effect on various clinical outcomes was assessed. Median time to engraftment was 17 days for neutrophils and 24 days for platelets. To receive a dose of TNC ≥3.2 x 106/kg or CD34+ cells ≥2.7 x 106/kg significantly shortened the time to neutrophil and platelet engraftment and reduced the blood product requirements in the 30-day period after transplantation. Overall, TNC and CD34+ cell doses had no effect on acute graft-versus-host disease (GVHD) incidence, whereas patients receiving higher CD3+ and CD8+ cell doses seemed to have less chronic GVHD. No effect on non-relapse mortality, progression-free survival and overall survival was observed at different cell dose thresholds. These data suggest that in HLA haploidentical BM transplant with PT-CY, appropriate cell doses are relevant to the engraftment. The association between low CD3+/CD8+ cells and chronic GVHD deserves further investigation.
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Affiliation(s)
- Luciana Teofili
- Fondazione Policlinico A. Gemelli IRCCS, Roma, Italy; Istituto di Ematologia, Università Cattolica del Sacro Cuore, Roma, Italy.
| | - Patrizia Chiusolo
- Fondazione Policlinico A. Gemelli IRCCS, Roma, Italy; Istituto di Ematologia, Università Cattolica del Sacro Cuore, Roma, Italy
| | | | | | | | | | - Maria Bianchi
- Fondazione Policlinico A. Gemelli IRCCS, Roma, Italy
| | | | - Simona Sica
- Fondazione Policlinico A. Gemelli IRCCS, Roma, Italy; Istituto di Ematologia, Università Cattolica del Sacro Cuore, Roma, Italy
| | - Andrea Bacigalupo
- Fondazione Policlinico A. Gemelli IRCCS, Roma, Italy; Istituto di Ematologia, Università Cattolica del Sacro Cuore, Roma, Italy
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13
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Saad A, Lamb L, Wang T, Hemmer MT, Spellman S, Couriel D, Alousi A, Pidala J, Abdel-Azim H, Agrawal V, Aljurf M, Beitinjaneh AM, Bhatt VR, Buchbinder D, Byrne M, Cahn JY, Cairo M, Castillo P, Chhabra S, Diaz MA, Farhan S, Floisand Y, Frangoul HA, Gadalla SM, Gajewski J, Gale RP, Gandhi M, Gergis U, Hamilton BK, Hematti P, Hildebrandt GC, Kamble RT, Kanate AS, Khandelwal P, Lazaryan A, MacMillan M, Marks DI, Martino R, Mehta PA, Nishihori T, Olsson RF, Patel SS, Qayed M, Rangarajan HG, Reshef R, Ringden O, Savani BN, Schouten HC, Schultz KR, Seo S, Shaffer BC, Solh M, Teshima T, Urbano-Ispizua A, Verdonck LF, Vij R, Waller EK, William B, Wirk B, Yared JA, Yu LC, Arora M, Hashmi S. Impact of T Cell Dose on Outcome of T Cell-Replete HLA-Matched Allogeneic Peripheral Blood Stem Cell Transplantation. Biol Blood Marrow Transplant 2019; 25:1875-1883. [PMID: 31085303 PMCID: PMC7071947 DOI: 10.1016/j.bbmt.2019.05.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 05/02/2019] [Accepted: 05/03/2019] [Indexed: 01/24/2023]
Abstract
Data on whether the T cell dose of allogeneic peripheral blood stem cell (PBSC) products influences transplantation outcomes are conflicting. Using the Center for International Blood and Marrow Transplant Research database, we identified 2736 adult patients who underwent first allogeneic PBSC transplantation for acute leukemia or myelodysplastic syndrome between 2008 and 2014 using an HLA-matched sibling donor (MSD) or an 8/8-matched unrelated donor (MUD). We excluded ex vivo and in vivo T cell-depleted transplantations. Correlative analysis was performed between CD3+ T cell dose and the risk of graft-versus-host-disease (GVHD), relapse, nonrelapse mortality (NRM), disease-free survival (DFS), and overall survival (OS). Using maximum likelihood estimation, we identified CD3+ T cell dose cutoff that separated the risk of acute GVHD (aGVHD) grade II-IV in both the MSD and MUD groups. A CD3+ T cell dose cutoff of 14 × 107 cells/kg identified MSD/low CD3+ (n = 223) and MSD/high CD3+ (n = 1214), and a dose of 15 × 107 cells/kg identified MUD/low CD3+ (n = 197) and MUD/high CD3+ (n = 1102). On univariate analysis, the MSD/high CD3+ group had a higher cumulative incidence of day +100 aGVHD grade II-IV compared with the MSD/low CD3+ group (33% versus 25%; P = .009). There were no differences between the 2 groups in engraftment rate, risk of aGVHD grade III-IV or chronic GVHD (cGVHD), NRM, relapse, DFS, or OS. The MUD/high CD3+ group had a higher cumulative incidence of day +100 aGVHD grade II-IV compared with the MUD/low CD3+ group (49% versus 41%; P = .04). There were no differences between the 2 groups in engraftment rate, risk of severe aGVHD or cGVHD, NRM, relapse, DFS, or OS. Multivariate analysis of the MSD and MUD groups failed to show an association between CD3+ T cell dose and the risk of either aGVHD grade II-IV (P = .10 and .07, respectively) or cGVHD (P = .80 and .30, respectively). Subanalysis of CD4+ T cells, CD8+ T cells, and CD4+/CD8+ ratio failed to identify cutoff values predictive of transplantation outcomes; however, using the log-rank test, the sample size was suboptimal for identifying a difference at this cutoff cell dose. In this registry study, the CD3+ T cell dose of PBSC products did not influence the risk of aGVHD or cGVHD or other transplantation outcomes when using an MSD or an 8/8-matched MUD. Subset analyses of CD4+ and CD8+ T cell doses were not possible given our small sample size.
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Affiliation(s)
- Ayman Saad
- Division of Hematology, The Ohio State University, Columbus, Ohio
| | - Lawrence Lamb
- University of Alabama at Birmingham, Birmingham, Alabama
| | - Tao Wang
- Division of Biostatistics, Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, Wisconsin; Center for International Blood and Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Michael T Hemmer
- Center for International Blood and Marrow Transplant Research, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Stephen Spellman
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be the Match, Minneapolis, Minnesota
| | - Daniel Couriel
- Utah Blood and Marrow Transplant Program, Salt Lake City, Utah
| | - Amin Alousi
- Department of Stem Cell Transplantation, Division of Cancer Medicine, The University of Texas M.D. Anderson Cancer Center, Houston, Texas
| | - Joseph Pidala
- Department of Blood and Marrow Transplantation, H. Lee Moffitt Cancer Center, Tampa, Florida
| | - Hisham Abdel-Azim
- Division of Hematology, Oncology and Blood and Marrow Transplantation, Children's Hospital of Los Angeles, University of Southern California Keck School of Medicine, Los Angeles, California
| | - Vaibhav Agrawal
- Division of Hematology-Oncology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Mahmoud Aljurf
- Oncology Center, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | | | - Vijaya Raj Bhatt
- The Fred and Pamela Buffett Cancer Center, University of Nebraska Medical Center, Omaha, Nebraska
| | - David Buchbinder
- Division of Pediatric Hematology, Children's Hospital of Orange County, Orange, California
| | - Michael Byrne
- Division of Hematology/Oncology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Jean-Yves Cahn
- Department of Hematology, CHU Grenoble Alpes, Grenoble, France
| | - Mitchell Cairo
- Division of Pediatric Hematology, Oncology, and Stem Cell Transplantation, Department of Pediatrics, New York Medical College, New York, New York
| | - Paul Castillo
- UF Health Shands Children's Hospital, Gainesville, Florida
| | - Saurabh Chhabra
- Division of Hematology/Oncology, Department of Medicine, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Miguel Angel Diaz
- Department of Hematology/Oncology, Hospital Infantil Universitario Nino Jesus, Madrid, Spain
| | - Shatha Farhan
- Henry Ford Hospital Bone Marrow Transplant Program, Detroit, Michigan
| | | | - Hadar A Frangoul
- Children's Hospital at TriStar Centennial and Sarah Cannon Research Institute, Nashville, Tennessee
| | - Shahinaz M Gadalla
- Division of Cancer Epidemiology & Genetics, Clinical Genetics Branch, National Cancer Institute, Rockville, Maryland
| | | | - Robert Peter Gale
- Hematology Research Center, Division of Experimental Medicine, Department of Medicine, Imperial College London, London, United Kingdom
| | - Manish Gandhi
- Division of Transfusion Medicine, Mayo Clinic, Rochester, Minnesota
| | - Usama Gergis
- Hematologic Malignancies & Bone Marrow Transplant, Department of Medical Oncology, New York Presbyterian Hospital/Weill Cornell Medical Center, New York, New York
| | - Betty Ky Hamilton
- Blood & Marrow Transplant Program, Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio
| | - Peiman Hematti
- Division of Hematology/Oncology/Bone Marrow Transplantation, Department of Medicine, University of Wisconsin Hospital and Clinics, Madison, Wisconsin
| | | | - Rammurti T Kamble
- Division of Hematology and Oncology, Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, Texas
| | - Abraham S Kanate
- Osborn Hematopoietic Malignancy and Transplantation Program, West Virginia University, Morgantown, West Virginia
| | - Pooja Khandelwal
- Division of Bone Marrow Transplant and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Aleksandr Lazaryan
- Department of Blood and Marrow Transplantation, H. Lee Moffitt Cancer Center, Tampa, Florida
| | - Margaret MacMillan
- University of Minnesota Blood and Marrow Transplant Program, Pediatrics, Minneapolis, Minnesota
| | - David I Marks
- Adult Bone Marrow Transplant, University Hospitals Bristol NHS Trust, Bristol, United Kingdom
| | - Rodrigo Martino
- Division of Clinical Hematology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Parinda A Mehta
- Division of Bone Marrow Transplant and Immune Deficiency, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio
| | - Taiga Nishihori
- Department of Blood and Marrow Transplantation, H. Lee Moffitt Cancer Center, Tampa, Florida
| | - Richard F Olsson
- Department of Laboratory Medicine, Karolinska Institute, Stockholm, Sweden; Centre for Clinical Research Sormland, Uppsala University, Uppsala, Sweden
| | - Sagar S Patel
- Blood and Marrow Transplant Program, Cleveland Clinic Foundation, Cleveland, Ohio
| | - Muna Qayed
- Department of Pediatrics, Emory University School of Medicine, Atlanta, Georgia
| | - Hemalatha G Rangarajan
- Department of Pediatric Hematology, Oncology, Blood and Marrow Transplantation, Nationwide Children's Hospital, Columbus, Ohio
| | - Ran Reshef
- Blood and Marrow Transplantation Program and Columbia Center for Translational Immunobiology, Columbia University Medical Center, New York, New York
| | - Olle Ringden
- Translational Cell Therapy Research, Karolinska Institute, Stockholm, Sweden
| | - Bipin N Savani
- Division of Hematology/Oncology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Harry C Schouten
- Department of Hematology, Academische Ziekenhuis, Maastricht, Netherlands
| | - Kirk R Schultz
- Department of Pediatric Hematology, Oncology and Bone Marrow Transplant, British Columbia's Children's Hospital, The University of British Columbia, Vancouver, Britich Columbia, Canada
| | - Sachiko Seo
- Department of Hematology and Oncology, Dokkyo Medical University, Tochigi, Japan
| | | | - Melhem Solh
- The Blood and Marrow Transplant Group of Georgia, Northside Hospital, Atlanta, Georgia
| | | | - Alvaro Urbano-Ispizua
- Department of Hematology, Hospital Clinic, University of Barcelona, IDIBAPS, and Josep Carreras Institute of Research, Barcelona, Spain
| | - Leo F Verdonck
- Department of Hematology/Oncology, Isala Clinic, Zwolle, The Netherlands
| | - Ravi Vij
- Division of Hematology and Oncology, Washington University School of Medicine, St Louis, Missouri
| | - Edmund K Waller
- Department of Hematology and Medical Oncology, Winship Cancer Institute, Emory University, Atlanta, Georgia
| | - Basem William
- Division of Hematology, The Ohio State University, Columbus, Ohio
| | - Baldeep Wirk
- Division of Bone Marrow Transplant, Seattle Cancer Care Alliance, Seattle, Washington
| | - Jean A Yared
- Blood & Marrow Transplantation Program, Division of Hematology/Oncology, Department of Medicine, Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, Maryland
| | - Lolie C Yu
- Division of Hematology/Oncology and HSCT, Center for Cancer and Blood Disorders, Children's Hospital/Louisiana State University Medical Center, New Orleans, Louisiana
| | - Mukta Arora
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota Medical Center, Minneapolis, Minnesota.
| | - Shahrukh Hashmi
- Oncology Center, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia; Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota
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