1
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Imamura M. Medium-dose etoposide, cyclophosphamide and total body irradiation conditioning potentiates anti-leukemia immunity in adults with acute lymphoblastic leukemia without aggravating graft-versus-host disease. Cytotherapy 2023; 25:1251-1258. [PMID: 37665303 DOI: 10.1016/j.jcyt.2023.07.008] [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: 02/24/2023] [Revised: 07/18/2023] [Accepted: 07/27/2023] [Indexed: 09/05/2023]
Abstract
Medium-dose etoposide (ETP), cyclophosphamide (CY) and total body irradiation (TBI) is a beneficial conditioning regimen for allogeneic hematopoietic cell transplantation (allo-HCT) in adults with acute lymphoblastic leukemia (ALL), especially with high-risk ALL, as compared with CY and TBI conditioning. ETP may enhance immunogenicity of leukemia-associated antigens through increased expression of major histocompatibility antigen complex class I, leading to cross-priming of T cells by dendritic cells and generating leukemia-specific cytotoxic T cells. Furthermore, ETP can eliminate activated effector T cells, sparing naïve and memory T cells, accompanied with depletion of regulatory T cells. These mechanisms are supposed to lead to inhibit immune escape of leukemia cells and enhance anti-leukemia immunity in addition to direct cytotoxicity of ETP, followed by an efficient eradication of leukemia cells. According to the findings of pharmacokinetics studies, spreading the administration of low-dose ETP may be more efficacious than non-spreading administration, to induce a potent anti-leukemia immunity without aggravating graft-versus-host disease and transplant-related toxicity. In the present review, I discuss the immunological aspects elicited by the addition of medium-dose ETP to the CY/TBI conditioning and the possible positioning of allo-HCT with this conditioning in adults with ALL, considering recent progress in non-HCT treatment including bispecific antibody-based therapy.
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Affiliation(s)
- Masahiro Imamura
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan.
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2
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Wu C, Dela Cruz T, Lai J, Kong D, Rajalingam R. Immune Cell Lineage-Specific Chimerism Testing by Next-Generation Sequencing for Engraftment Monitoring After Allogeneic Hematopoietic Stem Cell Transplantation. Methods Mol Biol 2023; 2621:187-213. [PMID: 37041446 DOI: 10.1007/978-1-0716-2950-5_11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/13/2023]
Abstract
Chimerism is an unusual state in which a person's body comprises cells from genetically different people. Chimerism testing allows monitoring for the relative proportion of recipient and donor-derived cell subsets in recipient blood and bone marrow. In the bone marrow transplant setting, chimerism testing is the standard diagnostic tool for early detection of graft rejection and the risk of malignant disease relapse. Chimerism testing enables the identification of patients with increased risk for recurrence of the underlying disease. Herein, we describe a step-by-step technical procedure of a novel, commercially available, next-generation sequencing-based chimerism testing method for use in the clinical laboratory.
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Affiliation(s)
- Cassie Wu
- Immunogenetics and Transplantation Laboratory, Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Thea Dela Cruz
- Immunogenetics and Transplantation Laboratory, Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Jack Lai
- Immunogenetics and Transplantation Laboratory, Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Denice Kong
- Immunogenetics and Transplantation Laboratory, Department of Surgery, University of California San Francisco, San Francisco, CA, USA
| | - Raja Rajalingam
- Immunogenetics and Transplantation Laboratory, Department of Surgery, University of California San Francisco, San Francisco, CA, USA.
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3
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Guidotti S, Bassi S, Rossi A, Borotti E, Cortellazzi P, Ferrarese D, Ronda E, Scarpa A, Schiro A, Merli F, Prezioso L, Bonifazi F, Narni F, Fabrizi E, Vallisa D. Mixed T cell CHIMERISM in bone marrow at day+30 after allogeneic stem cell transplantation: Correlation with acute GVHD grades III-IV and no impact on relapse and overall survival. Eur J Haematol 2022; 109:83-89. [PMID: 35389543 DOI: 10.1111/ejh.13772] [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: 12/15/2021] [Revised: 03/28/2022] [Accepted: 03/30/2022] [Indexed: 11/30/2022]
Abstract
OBJECTIVES Early chimerism analysis is important to assess engraftment in allogeneic hematopoietic stem cell transplantations. METHODS We retrospectively investigated the impact of T-cell chimerism at day 30 in bone marrow on acute graft-versus-host disease (aGVHD), relapse, and overall survival in 142 adult allo-transplanted patients. RESULTS The majority of patients (89%) received myeloablative conditioning and 90% have undergone T-cell replete donor graft. At day 30, 103 patients showed T-complete chimerism with prevalence in haploidentical transplants, whereas 39 cases had CD3+ mixed chimerism, including 30 patients transplanted with HLA identical donors, and 21 with T-cell donors<90%. T-cell chimerism at day 30 was weakly inversely related to aGVHD grades II-IV (p = .078) with no cases of grades III-IV aGVHD in patients with CD3+ <95%. Mixed T-cell chimerism did not impact on relapse (p = .448) and five of the seven patients who relapsed had T-cell chimerism ≤90%. Older age and active disease at transplant had a statistically significant negative effect on overall survival (p = .01 and p = .0001, respectively), whereas mixed CD3+ chimerism did not. CONCLUSIONS T lymphocyte chimerism analysis at day +30 in bone marrow could identify allo-transplanted patients at major risk of aGVHD grades III-IV (CD3+ donors >95%) mainly post-myeloablative conditioning regimen.
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Affiliation(s)
- Samantha Guidotti
- Bone Marrow Transplant Laboratory, Azienda USL di Piacenza, Piacenza, Italy
| | - Simona Bassi
- Department of Hematology, Azienda USL di Piacenza, Piacenza, Italy
| | - Angela Rossi
- Bone Marrow Transplant Laboratory, Azienda USL di Piacenza, Piacenza, Italy
| | - Elena Borotti
- Bone Marrow Transplant Laboratory, Azienda USL di Piacenza, Piacenza, Italy
| | - Pilade Cortellazzi
- Bone Marrow Transplant Laboratory, Azienda USL di Piacenza, Piacenza, Italy
| | - Diego Ferrarese
- Bone Marrow Transplant Laboratory, Azienda USL di Piacenza, Piacenza, Italy
| | - Elena Ronda
- Bone Marrow Transplant Laboratory, Azienda USL di Piacenza, Piacenza, Italy
| | - Alice Scarpa
- Bone Marrow Transplant Laboratory, Azienda USL di Piacenza, Piacenza, Italy
| | - Alice Schiro
- Bone Marrow Transplant Laboratory, Azienda USL di Piacenza, Piacenza, Italy
| | - Francesco Merli
- Hematology, Azienda USL-IRCCS di Reggio Emilia, Reggio Emilia, Italy
| | | | - Francesca Bonifazi
- Department of Hematology, IRCCS Azienda-Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Franco Narni
- Department of Hematology, AOU di Modena, Modena, Italy
| | - Enrico Fabrizi
- Dipartimento di Scienze Economiche e Sociale e Dipartimento di Scienze Statistiche, Università Cattolica del Sacro Cuore, Italy
| | - Daniele Vallisa
- Department of Hematology, Azienda USL di Piacenza, Piacenza, Italy
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4
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Lindahl H, Vonlanthen S, Valentini D, Björklund AT, Sundin M, Mielke S, Hauzenberger D. Lineage-specific early complete donor chimerism and risk of relapse after allogeneic hematopoietic stem cell transplantation for acute myeloid leukemia. Bone Marrow Transplant 2022; 57:753-759. [PMID: 35210563 PMCID: PMC9090632 DOI: 10.1038/s41409-022-01615-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 11/10/2022]
Abstract
Recipient–donor chimerism is routinely analyzed after allogeneic hematopoietic stem cell transplantation (HSCT) to monitor engraftment and graft rejection. For malignancies, chimerism can also be used to screen for disease relapse post-HSCT but methodology and interpretation of results are not standardized and likely depend on underlying diagnosis. We have implemented highly sensitive and accurate methodologies for chimerism analysis for the purpose of improving relapse prediction. Here, we report an exploratory retrospective analysis of clinical routine chimerism results from all 154 HSCTs for acute myeloid leukemia (AML) performed at our center during the years 2015–2020 with the aim of suggesting a clinically useful threshold at which risk of relapse is high. Relapse was not reliably predicted based on single elevated chimerism values obtained before time of overt relapse. However, early complete donor chimerism, here defined as recipient DNA < 0.2% in CD33+ cells in any blood or bone marrow sample taken during the first 60 days after HSCT, correlated inversely with relapse during the observation time (log-rank test P = 0.033). We propose that achievement of complete chimerism determined early after HSCT using sensitive methods can be used for risk-stratification of AML patients.
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Affiliation(s)
- Hannes Lindahl
- Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden. .,Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
| | - Sofie Vonlanthen
- Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
| | - Davide Valentini
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital, Stockholm, Sweden
| | - Andreas T Björklund
- Department of Cellular Therapy and Allogeneic Stem Cell Transplantation (CAST), Karolinska University Hospital, Stockholm, Sweden
| | - Mikael Sundin
- Pediatric Hematology, Immunology and HCT, Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.,Pediatrics, CLINTEC, Karolinska Institutet, Stockholm, Sweden
| | - Stephan Mielke
- Department of Cell Therapy and Allogeneic Stem Cell Transplantation (CAST), Department of Laboratory Medicine (LabMED), Karolinska University Hospital and Institutet, Karolinska Comprehensive Cancer Center, Stockholm, Sweden
| | - Dan Hauzenberger
- Clinical Immunology and Transfusion Medicine, Karolinska University Hospital, Stockholm, Sweden
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5
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Blouin AG, Askar M. Chimerism analysis for clinicians: a review of the literature and worldwide practices. Bone Marrow Transplant 2022; 57:347-359. [PMID: 35082369 DOI: 10.1038/s41409-022-01579-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Revised: 12/18/2021] [Accepted: 01/12/2022] [Indexed: 11/09/2022]
Abstract
This review highlights literature pertinent to chimerism analysis in the context of hematopoietic cell transplantation (HCT). We also conducted a survey of testing practices of program members of CIBMTR worldwide. Questions included testing methods, time points, specimen type, cell lineage tested and testing indications. Recent literature suggests that detection of low level mixed chimerism has a clinical utility in predicting relapse. There is also increasing recognition of HLA loss relapse to potentially guide rescue decisions in cases of relapse. These developments coincide with wider access to high sensitivity next generation sequencing (NGS) in clinical laboratories. Our survey revealed a heterogeneity in practices as well as in findings and conclusions of published studies. Although the most commonly used method is STR, studies support more sensitive methods such as NGS, especially for predicting relapse. There is no conclusive evidence to support testing chimerism in BM over PB, particularly when using a high sensitivity testing method. Periodic monitoring of chimerism especially in diagnoses with a high risk of relapse is advantageous. Lineage specific chimerism is more sensitive than whole blood in predicting impending relapse. Further studies that critically assess how to utilize chimerism testing results will inform evidence based clinical management decisions.
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Affiliation(s)
- Amanda G Blouin
- Department of Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Medhat Askar
- Department of Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA. .,Department of Pathology & Laboratory Medicine, Baylor University Medical Center, Dallas, TX, USA. .,Department of Pathology and Laboratory Medicine, Texas A&M Health Science Center College of Medicine, Bryan, TX, USA. .,National Donor Marrow Program (NMDP)/Be The Match, Minneapolis, MN, USA.
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6
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Delie A, Verlinden A, Beel K, Deeren D, Mazure D, Baron F, Breems D, De Becker A, Graux C, Lewalle P, Maertens J, Poire X, Schoemans H, Selleslag D, Van Obbergh F, Kerre T. Use of chimerism analysis after allogeneic stem cell transplantation: Belgian guidelines and review of the current literature. Acta Clin Belg 2021; 76:500-508. [PMID: 32362204 DOI: 10.1080/17843286.2020.1754635] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background: Allogeneic hematopoietic stem cell transplantation (HSCT) is a curative treatment option in both adult and pediatric patients with malignant and non-malignant hematological diseases. Chimerism analysis, which determines the donor or recipient origin of hematopoietic cells in HSCT recipients, is an essential aspect of post-HSCT follow-up.Objectives: To review the current literature and develop Belgian consensus guidelines for the use of chimerism analysis in the standard of care after allogeneic HSCT.Methods: Non-systematic review of the literature in consultancy with the members of the BHS transplantation committee.Results: Clinical application with regards to prediction of graft failure or relapse as well as cell source are reviewed. A consensus guideline on the use of chimerism analysis after HSCT is presented.Conclusion: Monitoring of the dynamics or kinetics of a patient's chimerism status by serial analysis at fixed time points, as well as on suspicion of relapse or graft failure, is needed to monitor engraftment levels, as well as disease control and possible relapse.
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Affiliation(s)
- Anke Delie
- Department of Hematology, University Hospital, Ghent University, Ghent, Belgium
| | - Anke Verlinden
- Department of Hematology, University Hospital, University of Antwerp, Antwerp, Belgium
| | - Karolien Beel
- Department of Hematology, Ziekenhuis Netwerk, Antwerpen, Belgium
| | - Dries Deeren
- Department of Hematology, AZ Delta, Roeselare, Belgium
| | - Dominiek Mazure
- Department of Hematology, University Hospital, Ghent University, Ghent, Belgium
| | - Frédéric Baron
- Department of Hematology, University Hospital, University of Liège, Liège, Belgium
| | - Dimitri Breems
- Department of Hematology, Ziekenhuis Netwerk, Antwerpen, Belgium
| | - Ann De Becker
- Department of Hematology, University Hospital, Vrije Universiteit Brussel, Brussels, Belgium
| | - Carlos Graux
- Department of Hematology, University Hospital Namur, Université Catholique de Louvain, Belgium
| | - Philippe Lewalle
- Department of Hematology, Jules Bordet Institute, Université Libre de Bruxelles, Brussels, Belgium
| | - Johan Maertens
- Department of Hematology, University Hospital, KU Leuven, Leuven, Belgium
| | - Xavier Poire
- Department of Hematology, University Hospital Saint Luc, Univeristé Catholique de Louvain, Brussels, Belgium
| | - Helene Schoemans
- Department of Hematology, University Hospital, KU Leuven, Leuven, Belgium
| | | | | | - Tessa Kerre
- Department of Hematology, University Hospital, Ghent University, Ghent, Belgium
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7
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Pincez T, Santiago R, Bittencourt H, Louis I, Bilodeau M, Rouette A, Jouan L, Landry JR, Couture F, Richer J, Teira P, Duval M, Cellot S. Intensive monitoring of minimal residual disease and chimerism after allogeneic hematopoietic stem cell transplantation for acute leukemia in children. Bone Marrow Transplant 2021; 56:2981-2989. [PMID: 34475524 DOI: 10.1038/s41409-021-01408-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Revised: 06/04/2021] [Accepted: 07/01/2021] [Indexed: 02/07/2023]
Abstract
Posttransplant leukemia detection before overt relapse is key to the success of immunotherapeutic interventions, as they are more efficient when leukemia burden is low. However, optimal schedule and monitoring methods are not well defined. We report the intensive bone marrow monitoring of minimal residual disease (MRD) using flow cytometry (FC) and nested reverse transcription polymerase chain reaction (RT-PCR) whenever a fusion transcript allowed it and chimerism by PCR at 11 timepoints in the first 2 years after transplant. Seventy-one transplants were performed in 59 consecutive children, for acute myeloid (n = 38), lymphoid (n = 31), or mixed-phenotype (n = 2) leukemia. MRD was monitored in 62 cases using FC (n = 58) and/or RT-PCR (n = 35). Sixty-seven percent of leukemia recurrences were detected before overt relapse, with a detection rate of 89% by RT-PCR and 40% by FC alone. Increased mixed chimerism was never the first evidence of recurrence. Two patients monitored by RT-PCR relapsed without previous MRD detection, one after missed scheduled evaluation and the other 4.7 years post transplant. Among the 22 cases with MRD detection without overt relapse, 19 received therapeutic interventions. Eight (42%) never relapsed. In conclusion, intensive marrow monitoring by RT-PCR effectively allows for early detection of posttransplant leukemia recurrence.
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Affiliation(s)
- Thomas Pincez
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada
| | - Raoul Santiago
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada
| | - Henrique Bittencourt
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada.,Département de Pédiatrie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Isabelle Louis
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada
| | - Mélanie Bilodeau
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada
| | - Alexandre Rouette
- Laboratoire de Diagnostic Moléculaire, CHU Sainte-Justine, Montréal, QC, Canada
| | - Loubna Jouan
- Centre Intégré de Génomique Clinique Pédiatrique, CHU Sainte-Justine, Montréal, QC, Canada
| | - Josette-Renée Landry
- Département de Pédiatrie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Françoise Couture
- Laboratoire de Diagnostic Moléculaire, CHU Sainte-Justine, Montréal, QC, Canada
| | - Johanne Richer
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada
| | - Pierre Teira
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada.,Département de Pédiatrie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
| | - Michel Duval
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada. .,Département de Pédiatrie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada.
| | - Sonia Cellot
- Service d'Hématologie-Oncologie Pédiatrique, Centre de Cancérologie Charles-Bruneau, CHU Sainte-Justine, Montréal, QC, Canada.,Département de Pédiatrie, Faculté de Médecine, Université de Montréal, Montréal, QC, Canada
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8
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Blouin AG, Ye F, Williams J, Askar M. A practical guide to chimerism analysis: Review of the literature and testing practices worldwide. Hum Immunol 2021; 82:838-849. [PMID: 34404545 DOI: 10.1016/j.humimm.2021.07.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 06/30/2021] [Accepted: 07/26/2021] [Indexed: 12/17/2022]
Abstract
BACKGROUND AND PURPOSE Currently there are no widely accepted guidelines for chimerism analysis testing in hematopoietic cell transplantation (HCT) patients. The objective of this review is to provide a practical guide to address key aspects of performing and utilizing chimerism testing results. In developing this guide, we conducted a survey of testing practices among laboratories that are accredited for performing engraftment monitoring/chimerism analysis by either the American Society for Histocompatibility & Immunogenetics (ASHI) and/or the European Federation of Immunogenetics (EFI). We interpreted the survey results in the light of pertinent literature as well as the experience in the laboratories of the authors. RECENT DEVELOPMENTS In recent years there has been significant advances in high throughput molecular methods such as next generation sequencing (NGS) as well as growing access to these technologies in histocompatibility and immunogenetics laboratories. These methods have the potential to improve the performance of chimerism testing in terms of sensitivity, availability of informative genetic markers that distinguish donors from recipients as well as cost. SUMMARY The results of the survey revealed a great deal of heterogeneity in chimerism testing practices among participating laboratories. The most consistent response indicated monitoring of engraftment within the first 30 days. These responses are reflective of published literature. Additional clinical indications included early detection of impending relapse as well as identification of cases of HLA-loss relapse.
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Affiliation(s)
- Amanda G Blouin
- Department of Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Fei Ye
- Department of Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Jenifer Williams
- Department of Pathology & Laboratory Medicine, Baylor University Medical Center, Dallas, TX, United States
| | - Medhat Askar
- Department of Laboratory Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States; Department of Pathology & Laboratory Medicine, Baylor University Medical Center, Dallas, TX, United States; Department of Pathology and Laboratory Medicine, Texas A&M Health Science Center College of Medicine, United States.
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9
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Imamura M. Impaired Hematopoiesis after Allogeneic Hematopoietic Stem Cell Transplantation: Its Pathogenesis and Potential Treatments. HEMATO 2021. [DOI: 10.3390/hemato2010002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/11/2023]
Abstract
Impaired hematopoiesis is a serious complication after allogeneic hematopoietic stem cell transplantation (allo-HSCT). Bone marrow aplasia and peripheral cytopenias arise from primary and secondary graft failure or primary and secondary poor graft function. Chimerism analysis is useful to discriminate these conditions. By determining the pathogenesis of impaired hematopoiesis, a timely and appropriate treatment can be performed. Hematopoietic system principally consists of hematopoietic stem cells and bone marrow microenvironment termed niches. Abnormality in hematopoietic stem and progenitor cells and/or abnormality in the relevant niches give rise to hematological diseases. Allo-HSCT is intended to cure each hematological disease, replacing abnormal hematopoietic stem cells and bone marrow niches with hematopoietic stem cells and bone marrow niches derived from normal donors. Therefore, treatment for graft failure and poor graft function after allo-HSCT is required to proceed based on determining the pathogenesis of impaired hematopoiesis. Recent progress in this area suggests promising treatment manipulations for graft failure and poor graft function.
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10
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Burney C, Wadhera K, Breslin P, Pearce R, Wells M, Alajangi R, Protheroe R, Marks DI, Griffin J, Robinson S. BEAM-Campath Allogeneic Stem Cell Transplant for Patients with Relapsed/Refractory Lymphoma: High Incidence of Long-Term Mixed Donor-Recipient Chimerism and the Response to Donor Lymphocyte Infusions. Biol Blood Marrow Transplant 2020; 26:2271-2278. [PMID: 32890747 DOI: 10.1016/j.bbmt.2020.08.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 08/14/2020] [Accepted: 08/25/2020] [Indexed: 10/23/2022]
Abstract
BiCNU (carmustine), etoposide, Ara-C, melphalan (BEAM) and Campath conditioning was developed to reduce the high transplant-related mortality in patients with lymphoma while delivering intensive antilymphoma immunotherapy, as well as to some extent a platform for allogeneic stem cell engraftment. Significant numbers of patients appeared to have persistent recipient-derived hematopoiesis, and therefore we retrospectively analyzed patients with lymphoma undergoing BEAM-Campath conditioned allogeneic stem cell transplantation at our center (2003 to 2017) to characterize the patterns of chimerism and patient outcomes. Chimerism was analyzed with short tandem repeat PCR. Mixed donor-recipient chimerism (MDRC) was defined as 5% to 94.9% donor. Fifty-two patients (n = 30 male), with a median age of 45 years, were identified with histologic diagnoses of Hodgkin lymphoma (n = 13), diffuse large B cell lymphoma (n = 7), low-grade non-Hodgkin lymphoma (n = 16), mantle cell lymphoma (n = 10), and T cell lymphoma (n = 6). Pretransplant, 93% achieved complete response (52%) or partial response (41%) with a median of 3 prior therapies (n = 3 prior autologous stem cell transplantation). Donors were Matched sibling donors (MSD) (n = 21), matched unrelated donors (MUD) (n = 24), miss-matched unrelated donors (MMUD) (n = 6), and syngeneic (n = 1). Acute graft-versus host disease (GVHD) developed in 52% (81% grade I to II) and chronic GVHD (83% extensive) in 12%. MDRC of T cells (MDRCt) developed in 62% (n = 32), and 29% (n = 15) developed MDRC of myeloid cells (MDRCm) at a median onset of 100 days. Donor lymphocyte infusion (DLI) was given to 17 patients, with a median starting dose of 1 × 106/kg. The first DLI was given at a median of 225 days post-transplant (range, 99 days to 5.3 years). Of these, 9 developed acute post-DLI GVHD and 2 limited chronic GVHD. Conversion to full donor occurred in 47% MDRCt and 50% MDRCm. Multivariate analysis identified sibling donor type as associated with increased MDRCt (P = .035; hazard ratio [HR], 0.17) and reduced total nucleated cell dose with increased MDRCm (P = .021; HR, 0.76). The median follow-up was 6 years, and 2-year NRM cumulative incidence was 16% (95% confidence interval [CI], 7% to 27%). Ten-year progression and extensive GVHD-free survival was 45% (95% CI, 28% to 61%), and overall survival was 66% (95% CI, 50% to 78%). One-year landmark analysis identified no increased GVHD or relapse risk with MDRCt or MDRCm but reduced nonrelapse mortality (NRM) risk with MDRCt (P = .001). BEAM-Campath allografts for high-risk lymphoma achieve long-term disease-free survival with low rates of GVHD and transplant-related mortality. The frequent development of myeloid MDRC demonstrates that BEAM-Campath is a nonmyeloablative conditioning regimen in almost a third of patients. MDRCt is associated with reduced NRM, but neither MDRCt or MDRCm is associated with increased GVHD or relapse.
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Affiliation(s)
- Claire Burney
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
| | - Karan Wadhera
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
| | - Patricia Breslin
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
| | - Rachel Pearce
- Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Matthew Wells
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom.
| | - Rajesh Alajangi
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
| | - Rachel Protheroe
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
| | - David I Marks
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
| | - James Griffin
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
| | - Stephen Robinson
- University Hospitals Bristol NHS Foundation Trust, Bristol, United Kingdom
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11
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Zor F, Bozkurt M, Cwykiel J, Karagoz H, Kulahci Y, Uygur S, Siemionow M. The effect of thymus transplantation on donor-specific chimerism in the rat model of composite osseomusculocutaneous sternum, ribs, thymus, pectoralis muscles, and skin allotransplantation. Microsurgery 2020; 40:576-584. [PMID: 31904149 DOI: 10.1002/micr.30555] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 11/15/2019] [Accepted: 12/26/2019] [Indexed: 12/13/2022]
Abstract
INTRODUCTION Research on tolerance has proven that development of donor-specific chimerism (DSC) may accompany tolerance induction in vascularized composite allotransplantation (VCA). In this study, we aimed to determine the effect of thymus transplantation on the induction of DSC in rat VCA model of osseomusculocutaneous sternum (OMCS) and osseomusculocutaneous sternum and thymus (OMCST) allotransplantation. MATERIALS AND METHODS A total of 20 Lewis-Brown Norway and Lewis rats, 5-6 weeks old, weighting between 120 and 150 g, were used in the study. OMCS (n = 5) and OMCST (n = 5) allografts were harvested from Lewis-Brown Norway donors (RT1l + n ) based on the common carotid artery and external jugular vein, and a heterotopic transplantation was performed to the inguinal region of the Lewis (RT1l ) recipients under cyclosporine A monotherapy (16 mg/kg) protocol tapered to 2 mg/kg and maintained for the duration of the study. The peripheral blood chimerism levels (T-cell, B-cell, and monocyte/granulocyte/dendritic cell-MGDC populations) were evaluated at days 7, 14, 35, 63, 100, and 150 posttransplant by flow cytometry. At Day 150, thymus, spleen, and liver samples were assessed by polymerase chain reaction (PCR) in the presence of DSC. RESULTS Total chimerism level increased in both OMCST and OMCS groups at all time points. At 150 days posttransplant, chimerism in OMCST group was significantly higher (12.91 ± 0.16%) than that in OMCS group (8.89 ± 0.53%%, p < .01), and PCR confirmed the presence of donor-derived cells in the liver and spleen of all OMCST recipients and in one liver sample and two spleen samples in OMCS recipients without thymus transplant. CONCLUSIONS This study confirmed the direct effects of thymus transplantation on the induction and maintenance of DSC in T-cell, B-cell, and MGDC populations. These results confirm correlation between thymus transplantation and DSC induction.
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Affiliation(s)
- Fatih Zor
- Wake Forest Institute for Regenerative Medicine, Winston Salem, North Carolina.,Department of Plastic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Mehmet Bozkurt
- Department of Plastic Surgery, Cleveland Clinic, Cleveland, Ohio.,Department of Plastic and Reconstructive Surgery, Bagcilar Training and Research Hospital, Istanbul, Turkey
| | - Joanna Cwykiel
- Department of Plastic Surgery, Cleveland Clinic, Cleveland, Ohio.,Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois
| | - Huseyin Karagoz
- Wake Forest Institute for Regenerative Medicine, Winston Salem, North Carolina.,Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois
| | - Yalcin Kulahci
- Wake Forest Institute for Regenerative Medicine, Winston Salem, North Carolina.,Department of Plastic Surgery, Cleveland Clinic, Cleveland, Ohio
| | - Safak Uygur
- Department of Plastic Surgery, Cleveland Clinic, Cleveland, Ohio.,Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois
| | - Maria Siemionow
- Department of Plastic Surgery, Cleveland Clinic, Cleveland, Ohio.,Department of Orthopaedics, University of Illinois at Chicago, Chicago, Illinois
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12
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Aloisio M, Bortot B, Gandin I, Severini GM, Athanasakis E. A semi-nested real-time PCR method to detect low chimerism percentage in small quantity of hematopoietic stem cell transplant DNA samples. Genome 2017; 60:183-192. [DOI: 10.1139/gen-2016-0092] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Chimerism status evaluation of post-allogeneic hematopoietic stem cell transplantation samples is essential to predict post-transplant relapse. The most commonly used technique capable of detecting small increments of chimerism is quantitative real-time PCR. Although this method is already used in several laboratories, previously described protocols often lack sensitivity and the amount of the DNA required for each chimerism analysis is too high. In the present study, we compared a novel semi-nested allele-specific real-time PCR (sNAS-qPCR) protocol with our in-house standard allele-specific real-time PCR (gAS-qPCR) protocol. We selected two genetic markers and analyzed technical parameters (slope, y-intercept, R2, and standard deviation) useful to determine the performances of the two protocols. The sNAS-qPCR protocol showed better sensitivity and precision. Moreover, the sNAS-qPCR protocol requires, as input, only 10 ng of DNA, which is at least 10-fold less than the gAS-qPCR protocols described in the literature. Finally, the proposed sNAS-qPCR protocol could prove very useful for performing chimerism analysis with a small amount of DNA, as in the case of blood cell subsets.
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Affiliation(s)
- Michelangelo Aloisio
- Department of Life Sciences, University of Trieste, Trieste, Italy; Medical Genetics, Institute for Maternal and Child Health, IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Barbara Bortot
- Medical Genetics, Institute for Maternal and Child Health, IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Ilaria Gandin
- Department of Medical Sciences, University of Trieste, Trieste, Italy
| | - Giovanni Maria Severini
- Medical Genetics, Institute for Maternal and Child Health, IRCCS “Burlo Garofolo”, Trieste, Italy
| | - Emmanouil Athanasakis
- Medical Genetics, Institute for Maternal and Child Health, IRCCS “Burlo Garofolo”, Trieste, Italy
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13
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Pichler H, Fritsch G, König M, Daxberger H, Glogova E, Pötschger U, Breuer S, Lawitschka A, Güclü ED, Karlhuber S, Holter W, Haas OA, Lion T, Matthes-Martin S. Peripheral blood late mixed chimerism in leucocyte subpopulations following allogeneic stem cell transplantation for childhood malignancies: does it matter? Br J Haematol 2016; 173:905-17. [PMID: 26996395 DOI: 10.1111/bjh.14008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 01/03/2016] [Indexed: 01/26/2023]
Abstract
The impact of persistent mixed chimerism (MC) after haematopoietic stem cell transplantation (HSCT) remains unclarified. We investigated the incidence of MC in peripheral blood beyond day +50 after HSCT and its impact on rejection, chronic graft-versus-host disease (c-GvHD) and relapse in 161 children receiving allogeneic HSCT for haematological malignancies. The 1-year incidence of late MC was 26%. Spontaneous conversion to complete donor chimerism (CC) occurred in 43% of patients as compared to 62% after donor lymphocyte infusions. No graft rejection occurred. The 1-year incidence of c-GvHD was 20 ± 7% for MC, and 18 ± 4% for CC patients (P = 0·734). The 3-year cumulative incidence of relapse (CIR) according to chimerism status at days +50 and +100 was 22 ± 4% for CC patients vs. 22 ± 8% for MC patients (day +50; P = 0·935) and 21 ± 4% vs. 20 ± 7% (day +100; P = 0·907). Three-year CIRs in patients with persistent MC and patients with CC/limited MC were comparable (8 ± 7% vs. 19 ± 4%; P = 0·960). HSCT for acute leukaemia or myelodysplastic syndrome as secondary malignancies (hazard ratio (HR) 4·7; P = 0·008), for AML (HR 3·0; P = 0·02) and from mismatched donors (HR 3·1; P = 0·03) were independent factors associated with relapse. Our data suggest that late MC neither protects from c-GvHD nor does it reliably predict impending disease relapse.
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Affiliation(s)
- Herbert Pichler
- Department of Paediatrics, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Gerhard Fritsch
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Medical University of Vienna, Vienna, Austria
| | - Margit König
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Medical University of Vienna, Vienna, Austria
| | - Helga Daxberger
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Medical University of Vienna, Vienna, Austria
| | - Evgenia Glogova
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Medical University of Vienna, Vienna, Austria
| | - Ulrike Pötschger
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Medical University of Vienna, Vienna, Austria
| | - Sabine Breuer
- Department of Paediatrics, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Anita Lawitschka
- Department of Paediatrics, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Ece D Güclü
- Department of Paediatrics, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Susanne Karlhuber
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Holter
- Department of Paediatrics, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
| | - Oskar A Haas
- Department of Paediatrics, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria.,Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Medical University of Vienna, Vienna, Austria
| | - Thomas Lion
- Children's Cancer Research Institute (CCRI), St. Anna Kinderkrebsforschung, Medical University of Vienna, Vienna, Austria
| | - Susanne Matthes-Martin
- Department of Paediatrics, St. Anna Children's Hospital, Medical University of Vienna, Vienna, Austria
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14
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Very Long Term Stability of Mixed Chimerism after Allogeneic Hematopoietic Stem Cell Transplantation in Patients with Hematologic Malignancies. BONE MARROW RESEARCH 2015; 2015:176526. [PMID: 26640712 PMCID: PMC4657082 DOI: 10.1155/2015/176526] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/02/2015] [Accepted: 10/22/2015] [Indexed: 12/03/2022]
Abstract
The objective of this study is to analyze the evolution of chimerism of all patients transplanted for hematologic malignancies in our unit during a 20-year period, alive without relapse at 1 year after allogeneic hematopoietic stem cell transplantation (HSCT). Chimerism was tested using short tandem repeat polymorphisms after separation into mononuclear cells and granulocytes by Ficoll density gradient centrifugation. Of 155 patients studied, 89 had full chimerism (FC), 36 mononuclear cells mixed chimerism (MNC-MC), and 30 granulocytic MC with or without mononuclear cells MC (Gran-MC). Survival was significantly better in MNC-MC than in Gran-MC patients, with FC patients being intermediate. There was more disease relapse in the Gran-MC group but not in the MNC-MC group as compared to FC. MC was stable up to 21 years in the MNC-MC group and up to 19 years in the Gran-MC group. Of MC patients alive at 10 years, MC persisted in 83% in the MNC-MC and 57% in the Gran-MC groups. In conclusion, mixed chimerism may remain stable over a very long time period. In survivors without relapse at 1 year after HSCT, determining lineage specific chimerism may be useful as outcome differs, MNC-MC being associated with better outcome than Gran-MC.
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15
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Eikmans M, van Halteren AGS, van Besien K, van Rood JJ, Drabbels JJM, Claas FHJ. Naturally acquired microchimerism: implications for transplantation outcome and novel methodologies for detection. CHIMERISM 2015; 5:24-39. [PMID: 24762743 DOI: 10.4161/chim.28908] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Microchimerism represents a condition where one individual harbors genetically distinct cell populations, and the chimeric population constitutes <1% of the total number of cells. The most common natural source of microchimerism is pregnancy. The reciprocal cell exchange between a mother and her child often leads to the stable engraftment of hematopoietic and non-hematopoietic stem cells in both parties. Interaction between cells from the mother and those from the child may result in maternal immune cells becoming sensitized to inherited paternal alloantigens of the child, which are not expressed by the mother herself. Vice versa, immune cells of the child may become sensitized toward the non-inherited maternal alloantigens of the mother. The extent of microchimerism, its anatomical location, and the sensitivity of the techniques used for detecting its presence collectively determine whether microchimerism can be detected in an individual. In this review, we focus on the clinical consequences of microchimerism in solid organ and hematopoietic stem cell transplantation, and propose concepts derived from data of epidemiologic studies. Next, we elaborate on the latest molecular methodology, including digital PCR, for determining in a reliable and sensitive way the extent of microchimerism. For the first time, tools have become available to isolate viable chimeric cells from a host background, so that the challenges of establishing the biologic mechanisms and function of these cells may finally be tackled.
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Affiliation(s)
- Michael Eikmans
- Department of Immunohematology and Blood Transfusion; Leiden University Medical Center; Leiden, the Netherlands
| | - Astrid G S van Halteren
- Immunology Laboratory; Willem Alexander Children's Hospital; Leiden University Medical Center; Leiden, the Netherlands
| | | | - Jon J van Rood
- Department of Immunohematology and Blood Transfusion; Leiden University Medical Center; Leiden, the Netherlands; Europdonor Foundation; Leiden, the Netherlands
| | - Jos J M Drabbels
- Department of Immunohematology and Blood Transfusion; Leiden University Medical Center; Leiden, the Netherlands
| | - Frans H J Claas
- Department of Immunohematology and Blood Transfusion; Leiden University Medical Center; Leiden, the Netherlands
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16
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Bach C, Tomova E, Goldmann K, Weisbach V, Roesler W, Mackensen A, Winkler J, Spriewald BM. Monitoring of hematopoietic chimerism by real-time quantitative PCR of micro insertions/deletions in samples with low DNA quantities. Transfus Med Hemother 2014; 42:38-45. [PMID: 25960714 DOI: 10.1159/000370255] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2014] [Accepted: 12/22/2014] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Sensitive and accurate methods to detect hematopoietic chimerism after hematopoietic stem cell transplantation (HSCT) are essential to evaluate engraftment and to monitor response to therapeutic procedures such as donor lymphocyte infusion. Continuous long-term follow up, however, requires large amounts of pre-HSCT samples limiting the application of many widely used techniques for sensitive chimerism monitoring. METHODS DNAs from 42 normal healthy donors and 16 HSCT donor/recipient pairs were employed to validate the use of allele-specific insertion/deletion (indel) quantitative real-time polymerase chain reaction (qPCR) to quantify chimerism in samples with low amounts of DNA. Consequently, indel-qPCR analyses of samples from 16 HSCT patients were compared to short-tandem repeat (STR) specific PCR analyses. RESULTS Typing with reduced amounts of input DNA (15 vs. 60 ng) allowed for the reliable distinction of positive (mean threshold cycle (ct) 28.05) and negative (ct >36) signals. The high informativity of primer/probe sets, with 12 out of 19 markers exceeding 20% informativity, was confirmed in our cohort (n = 74). Importantly, a fourfold reduction of input DNA compared to published protocols did not alter PCR efficiencies and allowed for a more sensitive detection of chimerism in 7 of 16 HSCT patients compared to results obtained by STR-PCR. CONCLUSIONS Our data suggest that indel-qPCR is a more sensitive technique for the detection of hematopoietic chimerism compared to STR-PCR and works efficiently for samples with low amounts of DNA.
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Affiliation(s)
- Christian Bach
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Elmira Tomova
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Katja Goldmann
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Volker Weisbach
- Department of Transfusion Medicine and Hemostaseology, University Hospital Erlangen, Erlangen, Germany
| | - Wolf Roesler
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Andreas Mackensen
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Julia Winkler
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Erlangen, Germany
| | - Bernd M Spriewald
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Erlangen, Germany
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17
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Martínez-Laperche C, Noriega V, Kwon M, Balsalobre P, González-Rivera M, Serrano D, Anguita J, Gayoso J, Díez-Martín JL, Buño I. Achievement of early complete donor chimerism in CD25+-activated leukocytes is a strong predictor of the development of graft-versus-host-disease after stem cell transplantation. Exp Hematol 2014; 43:4-13.e1. [PMID: 25450515 DOI: 10.1016/j.exphem.2014.09.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2014] [Revised: 09/05/2014] [Accepted: 09/06/2014] [Indexed: 12/22/2022]
Abstract
Chimerism dynamics in bone marrow, peripheral blood (PB), and T lymphocytes (TL) has been associated with the development of various complications after allogeneic stem-cell transplantation (allo-SCT). In the present study, the usefulness of chimerism monitoring in CD25(+)-activated leukocytes (AL), together with that in bone marrow, PB, and TL, for the anticipation of complications after allo-SCT, has been analyzed in 68 patients. In AL, we observed a slower dynamics toward complete chimerism (CC) than in PB (p = 0.042), while no significant differences were found between TL and PB (p = 0.12). Complete chimerism achievement in AL at day +30 has shown to be an independent risk factor for the development of grade II-IV acute graft-versus-host disease (aGvHD; hazard ratio [95% confidence interval]: 11.9 [1.5-91.7]; p = 0.017). Moreover, among patients achieving CC in TL and AL at different time-points after SCT (n = 17/68), the incidence of grade II-IV aGvHD was significantly higher in patients who achieved CC earlier in AL (5/5) than in those who achieved CC earlier in TL (1/11; p = 0.001). Therefore, achievement of early complete donor chimerism in CD25(+) AL is a strong predictor for the development of aGvHD. Prospective analysis of chimerism in AL could improve the post-SCT management of immunosuppressive therapy in transplanted patients.
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Affiliation(s)
- Carolina Martínez-Laperche
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Víctor Noriega
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Mi Kwon
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Pascual Balsalobre
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Milagros González-Rivera
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; Sequencing and Genotyping Research Support Service, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - David Serrano
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Javier Anguita
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Jorge Gayoso
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - José Luis Díez-Martín
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain
| | - Ismael Buño
- Department of Hematology and Hemotherapy, Hospital General Universitario Gregorio Marañón, Madrid, Spain; Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.
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18
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Toubai T, Mathewson N, Reddy P. The role of dendritic cells in graft-versus-tumor effect. Front Immunol 2014; 5:66. [PMID: 24600454 PMCID: PMC3930914 DOI: 10.3389/fimmu.2014.00066] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2013] [Accepted: 02/05/2014] [Indexed: 12/23/2022] Open
Abstract
Dendritic cells (DCs) are the most potent antigen presenting cells. DCs play a pivotal role in determining the character and magnitude of immune responses to tumors. Host and donor hematopoietic-derived DCs play a critical role in the development of graft-versus-host disease (GVHD) following allogeneic hematopoietic cell transplantation. GVHD is tightly linked with the graft-versus-tumor (GVT) effect. Although both host and donor DCs are important regulators of GVHD, the role of DCs in GVT is poorly understood. GVT is caused by donor T cells that attack recipient tumor cells. The donor T cells recognize alloantigens, and tumor specific antigens (TSAs) are mediating GVHD. The process of presentation of these antigens, especially TSAs remains unknown. Recent data suggested that DC may be essential role for inducing GVT. The mechanisms that DCs possess may include direct presentation, cross-presentation, cross-dressing. The role they play in GVT will be reviewed.
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Affiliation(s)
- Tomomi Toubai
- Blood and Marrow Transplantation Program, Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan Comprehensive Cancer Center , Ann Arbor, MI , USA
| | - Nathan Mathewson
- Blood and Marrow Transplantation Program, Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan Comprehensive Cancer Center , Ann Arbor, MI , USA
| | - Pavan Reddy
- Blood and Marrow Transplantation Program, Division of Hematology and Oncology, Department of Internal Medicine, University of Michigan Comprehensive Cancer Center , Ann Arbor, MI , USA
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19
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Chimerism status is correlated to acute graft-versus-host disease after allogeneic stem cell transplantation. Int J Hematol 2014; 99:323-8. [DOI: 10.1007/s12185-014-1510-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2013] [Revised: 01/09/2014] [Accepted: 01/15/2014] [Indexed: 10/25/2022]
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20
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Borrill V, Schlaphoff T, du Toit E, Marx M, Wood L, Jacobs P. The use of short tandem repeat polymorphisms for monitoring chimerism following bone marrow transplantation: a short report. Hematology 2013; 13:210-4. [DOI: 10.1179/102453308x316059] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022] Open
Affiliation(s)
- Veronica Borrill
- South African Bone Marrow Registry and Laboratory for Tissue Immunology, National Health Laboratory Service, Cape Town, South Africa
| | - Terry Schlaphoff
- South African Bone Marrow Registry and Laboratory for Tissue Immunology, National Health Laboratory Service, Cape Town, South Africa
| | - Ernette du Toit
- South African Bone Marrow Registry and Laboratory for Tissue Immunology, National Health Laboratory Service, Cape Town, South Africa
| | - Munro Marx
- Unistel Medical Laboratories (Pty) Ltd Cape Town, South Africa
| | - Lucille Wood
- The Department of Haematology and Bone Marrow Transplant Unit incorporating The Searll Research Laboratory for Cellular and Molecular BiologyConstantiaberg Medi-Clinic, Cape Town, South Africa; Faculty of Health Sciences, Stellenbosch University – Tygerberg Academic Hospital, Cape Town, South Africa
| | - Peter Jacobs
- The Department of Haematology and Bone Marrow Transplant Unit incorporating The Searll Research Laboratory for Cellular and Molecular BiologyConstantiaberg Medi-Clinic, Cape Town, South Africa; Faculty of Health Sciences, Stellenbosch University – Tygerberg Academic Hospital, Cape Town, South Africa; University of Nebraska Medical Centre, Omaha, NE, USA
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21
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Nikolousis E, Robinson S, Nagra S, Brookes C, Kinsella F, Tauro S, Jeffries S, Griffiths M, Mahendra P, Cook M, Paneesha S, Lovell R, Kishore B, Chaganti S, Malladi R, Raghavan M, Moss P, Milligan D, Craddock C. Post-transplant T cell chimerism predicts graft versus host disease but not disease relapse in patients undergoing an alemtuzumab based reduced intensity conditioned allogeneic transplant. Leuk Res 2013; 37:561-5. [PMID: 23395505 DOI: 10.1016/j.leukres.2013.01.010] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2012] [Revised: 01/12/2013] [Accepted: 01/13/2013] [Indexed: 11/18/2022]
Abstract
In this multicentre retrospective study we have studied the impact of T cell chimerism on the outcome of 133 patients undergoing an alemtuzumab based reduced intensity conditioning allograft (RIC). The median age of the patients was 50 years (range 42-55 years). 77 patients were transplanted using an HLA identical sibling donor while 56 patients received a fully matched volunteer unrelated donor graft. 64 patients had a lymphoid malignancy and 69 were transplanted for a myeloid malignancy. 38 patients (29%) relapsed with no significant difference in risk of relapse between patients developing full donor and mixed donor chimerism in the T-cell compartment on D+90 and D+180 post transplant. Day 90 full donor T cell chimerism correlated with an increased incidence of acute GVHD according to NIH criteria (p=0.0004) and the subsequent development of chronic GVHD. Consistent with previous observations, our results confirmed a correlation between the establishment of T cell full donor chimerism and acute GVHD in T deplete RIC allografts. However our study failed to identify any correlation between T cell chimerism and relapse risk and challenge the use of pre-emptive donor lymphocyte infusions (DLI) in patients with mixed T cell chimerism transplanted using an alemtuzumab based RIC regimen.
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Affiliation(s)
- E Nikolousis
- Department of Haematology, Heart of England NHS Foundation Trust, Birmingham, UK.
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22
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Rauwerdink CA, Tsongalis GJ, Tosteson TD, Hill JM, Meehan KR. The practical application of chimerism analyses in allogeneic stem cell transplant recipients: Blood chimerism is equivalent to marrow chimerism. Exp Mol Pathol 2012; 93:339-44. [DOI: 10.1016/j.yexmp.2012.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2012] [Accepted: 07/20/2012] [Indexed: 11/15/2022]
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23
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El-Cheikh J, Vazquez A, Crocchiolo R, Furst S, Calmels B, Castagna L, Lemarie C, Granata A, Ladaique P, Oudin C, Faucher C, Chabannon C, Blaise D. Acute GVHD is a strong predictor of full donor CD3+ T cell chimerism after reduced intensity conditioning allogeneic stem cell transplantation. Am J Hematol 2012; 87:1074-8. [PMID: 22911907 DOI: 10.1002/ajh.23319] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2012] [Revised: 07/18/2012] [Accepted: 07/23/2012] [Indexed: 11/12/2022]
Abstract
The monitoring of chimerism is a standard procedure to assess engraftment and achievement of full donor lymphoid cells after reduced intensity conditioning (RIC) stem cell transplantation (Allo-SCT). However, there is no consensus on when and how often to monitor post-transplant chimerism. We retrospectively analyzed our experience regarding the impact of acute graft versus host disease (GVHD) for the prediction of allograft chimerism. One-hundred-and-fifteen patients transplanted between 2001 and 2010 were identified. This group included 57 females and 58 males with a median age of 50 years (range: 26-68). Patients evaluated in this study were adult patients with hematologic malignancies, who received transplants from an HLA-matched sibling donor or matched unrelated donor (MUD) at allele level so-called 10/10, and received the RIC regimen including fludarabine/busulfan and anti-thymoglobulin (ATG). Mixed T-cell chimerism was defined as between 5 and 94% recipient cells, and full chimerism was defined as the presence of more than 95% donor T-cell chimerism (TCC). Full donor TCC was achieved in 93 patients (81%) at a median of 77 days (range: 30-120) post-transplant. The cumulative incidence of Grade 2-4 GVHD in our population was 25% (95% CI 17-34). The analysis of the population of patients with acute GVHD grade ≥2 showed that at day 120 after Allo-SCT they all had a total full donor TCC. On the other hand, 78 (68%) patients without acute GVHD grade ≥2 presented with mixed chimerism (p = 0.002) on day 120 post-transplant. Interestingly, patients who received ATG 5 mg/kg obtained a higher probability of complete chimerism compared with those receiving 2.5 mg/kg (p = 0.03). In conclusion, our study demonstrates that acute GVHD was predictive of full donor TCC after RIC Allo-SCT. Therefore, our data may challenge the concept of the frequent or close monitoring of donor chimerism in some patients with ongoing acute GVHD. However, chimerism testing could represent an attractive modality for minimal residual disease detection or for impeding relapse warranting further prospective studies.
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Affiliation(s)
- Jean El-Cheikh
- Unité de Transplantation et de Thérapie Cellulaire (U2T), Département d'Onco-Hématologie, Institut Paoli-Calmettes, Marseille, France.
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Early recipient chimerism testing in the T- and NK-cell lineages for risk assessment of graft rejection in pediatric patients undergoing allogeneic stem cell transplantation. Leukemia 2011; 26:509-19. [PMID: 21926962 DOI: 10.1038/leu.2011.244] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Timely diagnosis of impending graft rejection is crucial for effective therapeutic intervention after allogeneic hematopoietic stem cell transplantation (SCT). We have investigated the predictive potential of early leukocyte subset-specific chimerism for graft loss in children undergoing SCT. In total, 192 pediatric patients transplanted for the treatment of malignant and non-malignant diseases after reduced-intensity or myeloablative conditioning were investigated. Surveillance of lineage-specific chimerism was initiated upon first appearance of leukocyte counts amenable to cell sorting. Graft rejection occurred in 23 patients between 24 and 492 days post-transplant (median 63 days). The first chimerism analysis of T and NK cells performed at a median of 20 days after SCT identified three different risk groups that were independent from the conditioning regimen: recipient chimerism (RC) levels in T cells below 50% indicated a very low risk of rejection (1.4%), whereas high levels of RC (>90%) both in T and NK cells heralded graft loss in the majority of patients (90%) despite therapeutic interventions. RC >50% in T cells and ≤90% in NK cells defined an intermediate-risk group in which timely immunotherapy frequently prevented rejection. Early assessment of T- and NK-cell chimerism can therefore be instrumental in the risk assessment and therapeutic management of imminent graft rejection.
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Correlation Between the Kinetics of CD3+ Chimerism and the Incidence of Graft-Versus-Host Disease in Patients Undergoing Allogeneic Hematopoietic Stem Cell Transplantation. Transplant Proc 2011; 43:1915-23. [DOI: 10.1016/j.transproceed.2011.02.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Revised: 01/20/2011] [Accepted: 02/02/2011] [Indexed: 11/20/2022]
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26
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Shono Y, Kosugi-Kanaya M, Shiratori S, Sugita J, Fujimoto K, Kondo T, Nishio M, Tanaka J, Imamura M. Donor cell leukemia after umbilical cord blood transplantation: recurrent or de novo? The importance of diagnosis for therapeutic decision making. Int J Hematol 2011; 93:563-565. [PMID: 21479587 DOI: 10.1007/s12185-011-0814-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2011] [Revised: 03/07/2011] [Accepted: 03/08/2011] [Indexed: 11/28/2022]
Affiliation(s)
- Yusuke Shono
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan.
| | - Mizuha Kosugi-Kanaya
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Souichi Shiratori
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Junichi Sugita
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Katsuya Fujimoto
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Takeshi Kondo
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Mitsufumi Nishio
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Junji Tanaka
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
| | - Masahiro Imamura
- Stem Cell Transplantation Center, Hokkaido University Hospital, Kita-17, Nishi-7, Kita-ku, Sapporo, 060-8638, Japan
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27
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Lee SE, Lim J, Yahng SA, Cho BS, Eom KS, Kim M, Kim YJ, Kim HJ, Min CK, Lee S, Kim DW, Lee JW, Min WS, Park CW, Cho SG. Reduced-intensity conditioning regimen combined with low-dose total body irradiation in the treatment of myelodysplastic syndrome. Acta Haematol 2011; 126:21-9. [PMID: 21411986 DOI: 10.1159/000323717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2010] [Accepted: 12/21/2010] [Indexed: 11/19/2022]
Abstract
Although reduced-intensity conditioning (RIC) has been increasingly used in patients with myelodysplastic syndrome (MDS) to reduce transplant-related mortality, a high relapse rate in RIC remains an unresolved problem. Considering the additive antileukemic effect of low-dose total body irradiation (TBI), we evaluated the feasibility of combining RIC regimens with low-dose TBI in de novo MDS. The RIC regimen combined with low-dose TBI in this study consisted of fludarabine (150 mg/m(2)), intravenous busulfan (6.4 mg/kg), and TBI (400 cGy). Antithymocyte globulin was used to overcome HLA mismatching. A total of 31 subjects were recruited with a median age of 39 years (range 19-63). The patients received transplants from siblings (n = 20) or unrelated donors (n = 11). All patients rapidly achieved full-donor chimerism. At a median follow-up for survivors of 35 months (range 6.0-54.9), the 3-year overall survival, event-free survival, transplantation-related mortality, and relapse rates were 67.6, 63.2, 20.5 and 11.4%, respectively. The 3-year cumulative incidence of acute (grades II-IV) and chronic extensive graft-versus-host disease in patients who survived at least 100 days was 39.2 and 44.6%, respectively. These results suggest that an RIC combined with low-dose TBI may be a feasible therapeutic approach for treating de novo MDS.
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Affiliation(s)
- Sung-Eun Lee
- Department of Hematology, Catholic Blood and Marrow Transplantation Center, The Catholic University of Korea, College of Medicine, Seoul, Korea
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Goh RY, Cho SS, Song YJ, Heo K, Oh SY, Kim SH, Kwon HC, Kim HJ, Han JY. Clinical utility of chimerism status assessed by lineage-specific short tandem repeat analysis: experience from four cases of allogeneic stem cell transplantation. Korean J Lab Med 2009; 29:277-81. [PMID: 19726887 DOI: 10.3343/kjlm.2009.29.4.277] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Chimerism testing permits early prediction and documentation of successful engraftment, and also facilitates detection of impending graft rejection. In this study, we serially monitored chimerism status by short tandem repeat-based PCR in nucleated cells (NC), T cells and natural killer (NK) cells after myeloablative allogeneic stem cell transplantation (SCT). Four patients with myeloid malignancies showed discrepant chimerism results among those three fractions. Three patients had mixed chimerism (MC) of donor/host T cells at a time point around the onset of chronic graft-versus-host disease (GVHD). In two patients with disease relapse, MC of NK cells preceded a morphological relapse or NK cells showed a higher percentage of patient cells compared to NC. Therefore, our study shows that chimerism analysis in lineage-specific cells might be useful in predicting clinical outcome after allogeneic SCT in certain patients.
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Affiliation(s)
- Ri-Young Goh
- Department of Laboratory Medicine, Dong-A University College of Medicine, Busan, Korea
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29
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Abstract
Nonmyeloablative stem cell transplantation (NST) is increasingly used with beneficial effects because it can be applied to older patients with hematological malignancies and those with various complications who are not suitable for conventional myeloablative stem cell transplantation (CST). Various conditioning regimens differ in their myeloablative and immunosuppressive intensity. Regardless of the type of conditioning regimen, graft-versus- host disease (GVHD) in NST occurs almost equally in CST, although a slightly delayed development of acute GVHD is observed in NST. Although graft-versus-hematological malignancy effects (i.e., graft-versus-leukemia effect, graft-versus-lymphoma effect, and graft-versus-myeloma effect) also occur in NST, completely eradicating residual malignant cells through allogeneic immune responses is insufficient in cases with rapidly growing disease or uncontrolled progressive disease. Donor lymphocyte infusion (DLI) is sometimes combined to support engraftment and to augment the graft-versus-hematological malignancy effect, such as the graft-versus-leukemia effect. DLI is especially effective for controlling relapse in the chronic phase of chronic myelogenous leukemia, but not so effective against other diseases. Indeed, NST is a beneficial procedure for expanding the opportunity of allogeneic hematopoietic stem cell transplantation to many patients with hematological malignancies. However, a more sophisticated improvement in separating graft-versus-hematological malignancy effects from GVHD is required in the future.
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Affiliation(s)
- Masahiro Imamura
- Department of Hematology and Oncology, Hokkaido University Graduate School of Medicine, Kita-ku, Sapporo, Japan.
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Willasch A, Eing S, Weber G, Kuçi S, Schneider G, Soerensen J, Jarisch A, Rettinger E, Koehl U, Klingebiel T, Kreyenberg H, Bader P. Enrichment of cell subpopulations applying automated MACS technique: purity, recovery and applicability for PCR-based chimerism analysis. Bone Marrow Transplant 2009; 45:181-9. [DOI: 10.1038/bmt.2009.89] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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31
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Feasibility study of preemptive withdrawal of immunosuppression based on chimerism testing in children undergoing myeloablative allogeneic transplantation for hematologic malignancies. Bone Marrow Transplant 2008; 43:469-76. [DOI: 10.1038/bmt.2008.339] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Saito B, Fukuda T, Yokoyama H, Kurosawa S, Takahashi T, Fuji S, Takahashi N, Tajima K, Kim SW, Mori SI, Tanosaki R, Takaue Y, Heike Y. Impact of T Cell Chimerism on Clinical Outcome in 117 Patients Who Underwent Allogeneic Stem Cell Transplantation with a Busulfan-Containing Reduced-Intensity Conditioning Regimen. Biol Blood Marrow Transplant 2008; 14:1148-1155. [DOI: 10.1016/j.bbmt.2008.07.013] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2008] [Accepted: 07/20/2008] [Indexed: 10/21/2022]
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33
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Recipient-derived cells after cord blood transplantation: dynamics elucidated by multicolor FACS, reflecting graft failure and relapse. Biol Blood Marrow Transplant 2008; 14:693-701. [PMID: 18489995 DOI: 10.1016/j.bbmt.2008.04.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2008] [Accepted: 04/07/2008] [Indexed: 11/22/2022]
Abstract
Although umbilical cord blood has been increasingly used as an alternative donor source to treat hematologic malignancies, cord blood transplantation (CBT) is frequently complicated by graft failure and relapse of primary diseases. Because persistence or increase of recipient-derived hematopoietic or malignant cells has pathogenic import under these conditions, analysis of recipient-derived cells should be useful to understand the pathogenesis of graft failure and relapse of primary disease. Because most CBT involves human leukocyte antigen (HLA)-mismatched transplantation, we developed a 9-color fluorescence activated cell sorter (FACS)-based method of mixed chimerism (MC) analysis using anti-HLA antibodies to detect mismatched antigens (HLA-Flow method). Among CD4(+) T cells, CD8(+) T cells, B cells, NK cells, monocytes, and granulocytes, donor- and recipient-derived cells alike could be individually analyzed simultaneously in a rapid, quantitative and highly sensitive manner, making the HLA-Flow method very valuable in monitoring the engraftment process. In addition, this method was also useful in monitoring recipient-derived cells with leukemia-specific phenotypes, both as minimal residual disease (MRD) and as early harbingers of relapse. Leukemia relapse can be definitively diagnosed by cytogenetic or PCR studies using recipient-derived cells sorted for leukemia markers. Multicolor HLA-fFlow analysis and cell sorting in early diagnosis of graft failure and relapse was confirmed as valuable in 14 patients who had received HLA-mismatched CBT.
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34
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Influence of conditioning regimens and stem cell sources on donor-type chimerism early after stem cell transplantation. Ann Hematol 2008; 87:1003-8. [DOI: 10.1007/s00277-008-0542-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2008] [Accepted: 06/18/2008] [Indexed: 11/26/2022]
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35
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Richards J, Yvonne Morgan G, Pearce L, Patten PEM, Mufti GJ, Devereux S. Laser capture microscopy as a tool for the assessment of lineage-specific chimaerism from archived blood and bone marrow films. Br J Haematol 2007; 136:677-8. [PMID: 17367416 DOI: 10.1111/j.1365-2141.2006.06470.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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36
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Huisman C, de Weger RA, de Vries L, Tilanus MGJ, Verdonck LF. Chimerism analysis within 6 months of allogeneic stem cell transplantation predicts relapse in acute myeloid leukemia. Bone Marrow Transplant 2007; 39:285-91. [PMID: 17262061 DOI: 10.1038/sj.bmt.1705582] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The role of chimerism analysis as a prognostic indicator of relapse after hematopoietic stem cell transplantation (SCT) is controversial. We monitored chimerism status by short tandem repeat-based polymerase chain reaction (PCR) in T- and non-T-cell subsets and retrospectively evaluated clinical outcome in 96 patients with acute myeloid leukemia after myeloablative (MA) or reduced-intensity conditioning SCT. Fifty-six percent of 80 patients in the MA group demonstrated complete donor chimerism (CC) at all time points, whereas 6% had decreasing mixed chimerism (MC), 8% stable MC, 25% increasing MC and 3% increasing and decreasing MC. In 16 RIC patients, these percentages were 12, 50, 6, 6 and 19, respectively, together with 6% nonengraftment. Forty-three out of 96 patients experienced relapse. The last chimerism evaluation before relapse revealed increasing MC in only eight patients. In samples taken between 1 and 6 months post SCT, CC/decreasing MC was significantly related with a lower risk of relapse (31 versus 83%, P<0.000) and mortality (38 versus 83%, P<0.000) than with MC/increasing MC. However, the development of relapse was very rapid. Only very frequent monitoring of chimerism status by highly sensitive methods might identify impending relapse and allow early immunological intervention.
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Affiliation(s)
- C Huisman
- Department of Hematology, University Medical Center Utrecht, Utrecht, The Netherlands.
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