1
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Hematopoietic Cell Transplantation in the Treatment of Pediatric Acute Myelogenous Leukemia and Myelodysplastic Syndromes: Guidelines from the American Society of Transplantation and Cellular Therapy. Transplant Cell Ther 2022; 28:530-545. [DOI: 10.1016/j.jtct.2022.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 06/09/2022] [Indexed: 11/20/2022]
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2
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Klyuchnikov E, Badbaran A, Massoud R, Fritsche-Friedland U, Freiberger P, Ayuk F, Wolschke C, Bacher U, Kröger N. Post-transplant day +100 MRD detection rather than mixed chimerism predicts relapses after allo-SCT for intermediate risk AML patients transplanted in CR. Transplant Cell Ther 2022; 28:374.e1-374.e9. [DOI: 10.1016/j.jtct.2022.04.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 12/17/2022]
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3
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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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4
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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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5
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Spadea M, Saglio F, Tripodi SI, Menconi M, Zecca M, Fagioli F. Multivariate Analysis of Immune Reconstitution and Relapse Risk Scoring in Children Receiving Allogeneic Stem Cell Transplantation for Acute Leukemias. Transplant Direct 2021; 7:e774. [PMID: 34646937 PMCID: PMC8500617 DOI: 10.1097/txd.0000000000001226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 08/13/2021] [Indexed: 11/25/2022] Open
Abstract
A timely and effective immune reconstitution after hematopoietic stem cell transplantation (HSCT) is of crucial importance to enhance graft-versus-leukemia reaction in hematological malignancies. Several factors can influence the yield of this process, and new mathematical models are needed to describe this complex phenomenon.
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Affiliation(s)
- Manuela Spadea
- Pediatric Oncohematology, Stem Cell Transplantation and Cell Therapy Division, A.O.U. Città della Salute e della Scienza-Regina Margherita Children's Hospital, Turin, Italy
| | - Francesco Saglio
- Pediatric Oncohematology, Stem Cell Transplantation and Cell Therapy Division, A.O.U. Città della Salute e della Scienza-Regina Margherita Children's Hospital, Turin, Italy
| | - Serena I Tripodi
- Pediatric Hematology-Oncology, Fondazione Istituti di ricovero e cura a carattere scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy
| | - Mariacristina Menconi
- Haematopoietic Stem Cell Transplantation Unit, Paediatric Clinic, University Hospital of Pisa, Pisa, Italy
| | - Marco Zecca
- Pediatric Hematology-Oncology, Fondazione Istituti di ricovero e cura a carattere scientifico (IRCCS) Policlinico San Matteo, Pavia, Italy
| | - Franca Fagioli
- Pediatric Oncohematology, Stem Cell Transplantation and Cell Therapy Division, A.O.U. Città della Salute e della Scienza-Regina Margherita Children's Hospital, Turin, Italy
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6
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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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7
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Mixed T cell lineage chimerism in acute leukemia/MDS using pre-emptive donor lymphocyte infusion strategy-Is it prognostic?-a single-center retrospective study. Blood Cancer J 2021; 11:128. [PMID: 34253713 PMCID: PMC8275738 DOI: 10.1038/s41408-021-00519-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 05/25/2021] [Accepted: 06/14/2021] [Indexed: 12/17/2022] Open
Abstract
Pre-emptive DLI (pDLI) is an effective strategy in lowering the risk of relapse without significantly increasing the risk of graft-versus-host disease (GVHD) in the case of T cell lineage mixed chimerism (MC) post allogeneic transplant in hematological malignancies. Many patients, however, fail to receive timely pDLI and have dismal outcomes, which are not taken into consideration. We compared long-term outcomes of 106 patients having T cell MC after day 60 and undergoing allogeneic stem cell allograft for acute leukemia from an unrelated donor (UD), with 111 patients having complete chimerism (CC). Fifty-three (56%) patients received prophylactic pDLI. Thirty-six patients (67%) had a response (RR), 17 (33%) had no response (NR), and fifty-two (54%) did not receive any pDLI (ND). OS was better in MC group as compared to CC (54% vs 43%, p = 0.04), mainly due to reduction in NRM (14% vs 25%, p = 0.05), and all grade acute and chronic GVHD. Within the MC group, response to pDLI was the only significant factor predicting OS, DFS, and relapses with NR and ND having unfavorable outcomes as compared to RR (p = 0.001). T cell MC in patients undergoing UD allografts with alemtuzumab is no longer an adverse prognostic factor, as compared to patients having CC, after timely implementation of pDLI.
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8
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Gaut D, Mead M. Measurable residual disease in hematopoietic stem cell transplantation-eligible patients with acute myeloid leukemia: clinical significance and promising therapeutic strategies. Leuk Lymphoma 2020; 62:8-31. [DOI: 10.1080/10428194.2020.1827251] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Daria Gaut
- Division of Hematology/Oncology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
| | - Monica Mead
- Division of Hematology/Oncology, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA, USA
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9
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Haugaard AK, Kofoed J, Masmas TN, Madsen HO, Marquart HV, Heilmann C, Müller KG, Ifversen M. Is microchimerism a sign of imminent disease recurrence after allogeneic hematopoietic stem cell transplantation? A systematic review of the literature. Blood Rev 2020; 44:100673. [DOI: 10.1016/j.blre.2020.100673] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 02/05/2020] [Accepted: 02/24/2020] [Indexed: 12/12/2022]
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10
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Gambacorta V, Parolini R, Xue E, Greco R, Bouwmans EE, Toffalori C, Giglio F, Assanelli A, Stanghellini MTL, Ambrosi A, Mazzi B, Mulder W, Corti C, Peccatori J, Ciceri F, Vago L. Quantitative PCR-based chimerism in bone marrow or peripheral blood to predict acute myeloid leukemia relapse in high-risk patients: results from the KIM-PB prospective study. Haematologica 2020; 106:1480-1483. [PMID: 33054102 PMCID: PMC8094083 DOI: 10.3324/haematol.2019.238543] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Indexed: 11/26/2022] Open
Affiliation(s)
- Valentina Gambacorta
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milano
| | - Riccardo Parolini
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milano
| | - Elisabetta Xue
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milano, Italy; Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano
| | - Raffaella Greco
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano
| | | | - Cristina Toffalori
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milano
| | - Fabio Giglio
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano
| | - Andrea Assanelli
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano
| | | | | | - Benedetta Mazzi
- HLA and Chimerism Laboratory, IRCCS San Raffaele Scientific Institute, Milano
| | | | - Consuelo Corti
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano
| | - Jacopo Peccatori
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano, Italy; Vita-Salute San Raffaele University, Milano
| | - Luca Vago
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milano, Italy; Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano.
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11
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Cousin E, Oger E, Dalle JH, Bertrand Y, Pertuisel S, Pochon C, Galambrun C, Simon P, Bruno B, Paillard C, Schneider P, Rohrlich P, de La Tour RP, Freycon C, Eliaou JF, Semana G, Jonveaux P, Drunat S, Bordigoni P, Gandemer V. Assessment of chimerism and immunomodulation to prevent post-transplantation relapse in childhood acute myeloblastic leukemia: is it the right approach? Pediatr Hematol Oncol 2020; 37:259-268. [PMID: 32028812 DOI: 10.1080/08880018.2020.1717697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Relapse of acute myeloblastic leukemia (AML) after first allogenic hematopoietic stem-cell transplantation (allo-HSCT) is a fatal complication. Sixty-five children transplanted for AML were included in a prospective national study from June 2005 to July 2008 to explore the feasibility of preemptive immune modulation based on the monitoring of blood chimerism. Relapse occurred in 23 patients (35%). The median time between the last complete chimerism and relapse was 13.5 days (2-138). Prompt discontinuation of cyclosporin and the administration of donor lymphocyte infusions (DLIs) based on chimerism monitoring failed as a preemptive tool, either for detecting relapse or certifying long-term remission.
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Affiliation(s)
- Elie Cousin
- Department of Pediatric Hematology/Oncology, Rennes University Hospital, Rennes, France
| | - Emmanuel Oger
- Clinical Pharmacology Department, Pharmacoepidemiology Team, Rennes University Hospital, Rennes, France
| | - Jean-Hugues Dalle
- Department of Pediatric Hematology, Robert Debré University Hospital, Paris, France
| | - Yves Bertrand
- Department of Pediatric Hematology, Lyon University Hospital, Lyon, France
| | - Sophie Pertuisel
- Department of Pediatric Hematology/Oncology, Rennes University Hospital, Rennes, France
| | - Cecile Pochon
- Department of Pediatric Hematology/Oncology, Nancy University Hospital, Nancy, France
| | - Claire Galambrun
- Department of Pediatric Hematology, La Timone University Hospital, Marseille, France
| | - Pauline Simon
- Department of Pediatric Hematology/Oncology, Besançon University Hospital, Besançon, France
| | - Benedicte Bruno
- Department of Pediatric Hematology/Oncology, Jeanne de Flandre University Hospital, Lille, France
| | - Catherine Paillard
- Department of Pediatric Hematology/Oncology, Hautepierre University Hospital, Strasbourg, France
| | - Pascale Schneider
- Department of Pediatric Hematology, Rouen University Hospital, Rouen, France
| | - Pierre Rohrlich
- Department of Pediatric Hematology/Oncology, Archet II University Hospital, Nice, France
| | | | - Claire Freycon
- Department of Pediatric Hematology/Oncology, La Tronche University Hospital, Grenoble, France
| | | | - Gilbert Semana
- Laboratory of Immunology, French Blood Transfusion Center, Rennes, France
| | | | - Severine Drunat
- Department of Genetics, University Hospital of Robert Debre and Paris-Diderot University, Paris, France
| | - Pierre Bordigoni
- Department of Pediatric Hematology/Oncology, Nancy University Hospital, Nancy, France
| | - Virginie Gandemer
- Department of Pediatric Hematology/Oncology, Rennes University Hospital, Rennes, France
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12
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Fortschegger M, Preuner S, Printz D, Poetsch AR, Geyeregger R, Pichler H, Lawitschka A, Lion T. Detection and Monitoring of Lineage-Specific Chimerism by Digital Droplet PCR-Based Testing of Deletion/Insertion Polymorphisms. Biol Blood Marrow Transplant 2020; 26:1218-1224. [PMID: 32092354 DOI: 10.1016/j.bbmt.2020.02.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 02/03/2020] [Accepted: 02/13/2020] [Indexed: 12/31/2022]
Abstract
Analysis of specific leukocyte subsets for post-transplantation monitoring of chimerism provides greater sensitivity and clinical informativeness on dynamic changes in donor- and recipient-derived cells. Limitations of the most commonly used approach to chimerism testing relying on PCR-based analysis of microsatellite markers prompted us to assess the applicability of digital droplet (dd) PCR amplification of deletion/insertion polymorphisms (DIPs) for lineage-specific chimerism testing in the related stem cell transplantation setting, where the identification of informative markers facilitating the discrimination between donor-derived and recipient-derived cells can be challenging. We analyzed 100 genetically related patient-donor pairs by ddPCR analysis using commercially available DIP kits including large sets of polymorphic markers. At least 1 informative marker was identified in all related pairs analyzed, and 2 or more discriminating markers were detected in the majority (82%) of instances. The achievable detection limit is dependent on the number of cells available for analysis and was as low as 0.1% in the presence of ≥20,000 leukocytes available for DNA extraction. Moreover, the reproducibility and accuracy of quantitative chimerism analysis compared favorably to highly optimized microsatellite assays. Thus, the use of ddPCR-based analysis of DIP markers is an attractive approach to lineage-specific monitoring of chimerism in any allogeneic transplantation setting.
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Affiliation(s)
| | - Sandra Preuner
- St Anna Children's Cancer Research Institute, Vienna, Austria
| | - Dieter Printz
- St Anna Children's Cancer Research Institute, Vienna, Austria
| | - Anna R Poetsch
- St Anna Children's Cancer Research Institute, Vienna, Austria
| | - René Geyeregger
- St Anna Children's Cancer Research Institute, Vienna, Austria
| | | | | | - Thomas Lion
- St Anna Children's Cancer Research Institute, Vienna, Austria; Department of Pediatrics, Medical University of Vienna, Vienna, Austria.
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13
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Bouvier A, Riou J, Thépot S, Sutra Del Galy A, François S, Schmidt A, Orvain C, Estienne MH, Villate A, Luque Paz D, Cottin L, Ribourtout B, Beucher A, Delneste Y, Ifrah N, Ugo V, Hunault-Berger M, Blanchet O. Quantitative chimerism in CD3-negative mononuclear cells predicts prognosis in acute myeloid leukemia patients after hematopoietic stem cell transplantation. Leukemia 2019; 34:1342-1353. [PMID: 31768015 DOI: 10.1038/s41375-019-0624-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Revised: 10/18/2019] [Accepted: 11/03/2019] [Indexed: 12/20/2022]
Abstract
Relapse is a major complication of acute myeloid leukemia (AML) after allogeneic hematopoietic stem cell transplantation (SCT). The objective of our study was to evaluate chimerism monitoring on the CD3-negative mononuclear cells by RQ-PCR to predict relapse of patients allografted for AML and to compare its performance with WT1 quantification. A cohort of 100 patients undergoing allogenic SCT for AML was retrospectively analyzed in a single institution. Patients without complete chimerism, defined as less than 0.01% of recipient's DNA in CD3-negative cells, had a significantly higher risk of relapse and a lower overall survival (p < 0.001). An increase in the percentage of recipient DNA in CD3-negative cells was associated with an increased risk of relapse (p < 0.001) but not with overall survival. Comparable performances between monitoring of CD3-negative cell chimerism and WT1 expression to predict relapse was observed up to more than 90 days before hematological relapse, with sensitivity of 82% and 78%, respectively, and specificity of 100% for both approaches. Quantitative specific chimerism of the CD3-negative mononuclear fraction, enriched in blastic cells, is a new and powerful tool for monitoring measurable residual disease and could be used for AML patients without available molecular markers.
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Affiliation(s)
- Anne Bouvier
- CHU Angers, Laboratoire d'Hématologie, Angers, France. .,Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France. .,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.
| | - Jérémie Riou
- MINT, UMR INSERM 1066, CNRS 6021, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France
| | - Sylvain Thépot
- Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France.,CHU Angers, Service des Maladies du sang, Angers, France
| | | | - Sylvie François
- Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CHU Angers, Service des Maladies du sang, Angers, France
| | - Aline Schmidt
- Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France.,CHU Angers, Service des Maladies du sang, Angers, France
| | - Corentin Orvain
- Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France.,CHU Angers, Service des Maladies du sang, Angers, France
| | - Marie-Hélène Estienne
- Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CHU Tours, Service d'Hématologie biologique, Tours, France
| | - Alban Villate
- Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CHU Tours, Service d'Hématologie et thérapie cellulaire, Tours, France
| | - Damien Luque Paz
- CHU Angers, Laboratoire d'Hématologie, Angers, France.,Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France
| | - Laurane Cottin
- CHU Angers, Laboratoire d'Hématologie, Angers, France.,Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,Université d'Angers, UFR Santé, Angers, France
| | - Bénédicte Ribourtout
- CHU Angers, Laboratoire d'Hématologie, Angers, France.,Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France
| | - Annaëlle Beucher
- CHU Angers, Laboratoire d'Hématologie, Angers, France.,Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France
| | - Yves Delneste
- CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,CHU Angers, Laboratoire d'Immunologie et Allergologie, Angers, France
| | - Norbert Ifrah
- Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France.,CHU Angers, Service des Maladies du sang, Angers, France
| | - Valérie Ugo
- CHU Angers, Laboratoire d'Hématologie, Angers, France.,Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France
| | - Mathilde Hunault-Berger
- Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France.,CHU Angers, Service des Maladies du sang, Angers, France
| | - Odile Blanchet
- CHU Angers, Laboratoire d'Hématologie, Angers, France.,Fédération Hospitalo-Universitaire 'Grand Ouest Against Leukemia' (FHU GOAL), Angers, France.,CRCINA, INSERM, Université de Nantes, Université d'Angers, Angers, France.,Université d'Angers, UFR Santé, Angers, France.,CHU Angers, Centre de Ressources Biologiques, BB-0033-00038, Angers, France
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14
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Haugaard AK, Madsen HO, Marquart HV, Rosthøj S, Masmas TN, Heilmann C, Müller KG, Ifversen M. Highly sensitive chimerism detection in blood is associated with increased risk of relapse after allogeneic hematopoietic cell transplantation in childhood leukemia. Pediatr Transplant 2019; 23:e13549. [PMID: 31313439 DOI: 10.1111/petr.13549] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 05/04/2019] [Accepted: 06/19/2019] [Indexed: 12/19/2022]
Abstract
Analysis of chimerism in blood post-HCT using STR-PCR is routinely applied in parallel with quantification of MRD to predict relapse of leukemia. RQ-PCR chimerism is 10- to 100-fold more sensitive, but clinical studies in children are sparse. We analyzed IMC in blood samples following transplantation for acute lymphoblastic or myeloid leukemia in 56 children. IMC was defined as a minimum increase of (a) 0.1% or (b) 0.05% recipient DNA between two samples. The risk of relapse was higher in children with IMC of both 0.1% and 0.05% compared to children without IMC (HR 12.8 [95% CI: 3.9-41.4; P < .0001] and 7.6 [95% CI: 2.2-26.9; P < .01], respectively). The first IMC was detected at a median of 208 days prior to relapse. The 5-year cumulative incidence of relapse for children with a single IMC was 45.5% (CI 12.3-74.4) and 41.0% (14.2-66.6) for IMC above 0.1% and 0.05%, respectively. However, in 47 and 38 children never attaining IMC > 0.1% and >0.05%, 10 and 8 children relapsed, respectively. In a landmark analysis, no association was found between IMC prior to 90 days post-HCT and subsequent relapse by either classification of IMC and AUC for RQ-PCR chimerism was 54.2% (95 CI 27.7- 84.8). Although limited by a retrospective design, these results indicate that monitoring of RQ-PCR chimerism in peripheral blood may have a role in early detection of relapse in acute childhood leukemia.
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Affiliation(s)
- Anna Karen Haugaard
- Department for Children and Adolescents, Pediatric Hematopoietic Stem Cell Transplantation and Immunodeficiency, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Hans Ole Madsen
- Department of Clinical Immunology, The Tissue Typing Laboratory, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Hanne Vibeke Marquart
- Department of Clinical Immunology, The Tissue Typing Laboratory, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Susanne Rosthøj
- Department of Public Health, Section of Biostatistics, University of Copenhagen, Copenhagen, Denmark
| | - Tania Nicole Masmas
- Department for Children and Adolescents, Pediatric Hematopoietic Stem Cell Transplantation and Immunodeficiency, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Carsten Heilmann
- Department for Children and Adolescents, Pediatric Hematopoietic Stem Cell Transplantation and Immunodeficiency, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Klaus Gottlob Müller
- Department for Children and Adolescents, Pediatric Hematopoietic Stem Cell Transplantation and Immunodeficiency, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
| | - Marianne Ifversen
- Department for Children and Adolescents, Pediatric Hematopoietic Stem Cell Transplantation and Immunodeficiency, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
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15
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Tyler J, Kumer L, Fisher C, Casey H, Shike H. Personalized Chimerism Test that Uses Selection of Short Tandem Repeat or Quantitative PCR Depending on Patient's Chimerism Status. J Mol Diagn 2019; 21:483-490. [PMID: 30797064 DOI: 10.1016/j.jmoldx.2019.01.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 01/14/2019] [Accepted: 01/29/2019] [Indexed: 12/11/2022] Open
Abstract
Chimerism testing is used to monitor engraftment and risk of relapse after allogeneic hematopoietic stem cell transplantation for hematologic malignancies. Although short tandem repeat (STR) method is widely used among clinical laboratories, quantitative PCR (qPCR) provides better sensitivity (0.1%) than STR (1% to 5%) but is less accurate than STR for patients in mixed chimerism. qPCR chimerism allows evaluation of residual recipient cells as a surrogate of measurable residual disease. To achieve higher sensitivity and accuracy, we applied qPCR or STR based on patient chimerism status (recipient alleles <5% or ≥5%, respectively). Of the 230 patients tested by STR in a 1-year period, excluding 10 deceased patients, 30 qPCR markers were genotyped and 167 patients converted to qPCR chimerism (76%), including eight patients undergoing multiple-donor transplantation. STR was continued on 53 patients (24%) for the following reasons: mixed chimerism (n = 23), lack of donor or pretransplantation DNA (n = 22), and insufficient qPCR informative markers [8 of 60 patients with related donors (13.3%)]. qPCR detected residual recipient chimerism in 85.5% of patients with complete chimerism by STR (<5% recipient). Selecting STR or qPCR testing based on each patient's chimerism status facilitates sensitive and accurate chimerism testing in clinical settings. In addition, we discuss clinical relevance of chimerism testing for measurable residual disease detection in various hematologic malignancies.
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Affiliation(s)
- Jennifer Tyler
- Department of Pathology, Histocompatibility, and Immunogenetics, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Lorie Kumer
- Department of Pathology, Histocompatibility, and Immunogenetics, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Carolyn Fisher
- Department of Pathology, Histocompatibility, and Immunogenetics, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Heather Casey
- Department of Pathology, Histocompatibility, and Immunogenetics, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania
| | - Hiroko Shike
- Department of Pathology, Histocompatibility, and Immunogenetics, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania.
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16
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Abstract
PURPOSE OF REVIEW Incorporation of minimal residual disease (MRD) testing in acute lymphoblastic leukemia (ALL) and acute myeloblastic leukemia (AML) has transformed the landscape of hematopoietic cell transplantation (HCT). Pre-HCT MRD has allowed prognostication of HCT outcomes for high-risk leukemia patients, whereas the detection of post-HCT MRD has allowed for interventions to decrease relapse. RECENT FINDINGS In this review, we emphasize studies from the past two decades that highlight the critical role of MRD in HCT in pediatric ALL and AML. Advances in MRD detection methodology, using next-generation sequencing, have improved the sensitivity of MRD testing allowing for more accurate predictions of HCT outcomes for patients with relapsed and refractory ALL and AML. In addition, novel pre-HCT therapies, especially immunotherapy in ALL, have dramatically increased the number of patients who achieve MRD-negative remissions pre-HCT, resulting in improved HCT outcomes. Post-HCT MRD remains a challenge and new therapeutic interventions are needed to reduce post-HCT relapse. SUMMARY As immunotherapy increases pre-HCT MRD-negative remissions, and next-generation sequencing-MRD is incorporated to improve the sensitivity of MRD detection, future clinical studies will investigate less toxic HCT approaches to reduce long-term sequelae and to identify which patients may benefit most from early post-HCT intervention to reduce relapse.
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17
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Delsing Malmberg E, Johansson Alm S, Nicklasson M, Lazarevic V, Ståhlman S, Samuelsson T, Lenhoff S, Asp J, Ehinger M, Palmqvist L, Brune M, Fogelstrand L. Minimal residual disease assessed with deep sequencing of NPM1 mutations predicts relapse after allogeneic stem cell transplant in AML. Leuk Lymphoma 2018; 60:409-417. [DOI: 10.1080/10428194.2018.1485910] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Erik Delsing Malmberg
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Sofie Johansson Alm
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Malin Nicklasson
- Department of Medicine, Section of Hematology and Coagulation, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Vladimir Lazarevic
- Department of Hematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Sara Ståhlman
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Tore Samuelsson
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
| | - Stig Lenhoff
- Department of Hematology, Oncology and Radiation Physics, Skåne University Hospital, Lund, Sweden
| | - Julia Asp
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Mats Ehinger
- Division of Oncology and Pathology, Lund University, Lund, Sweden
| | - Lars Palmqvist
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Mats Brune
- Department of Medicine, Section of Hematology and Coagulation, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Linda Fogelstrand
- Department of Clinical Chemistry and Transfusion Medicine, Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg, Gothenburg, Sweden
- Department of Clinical Chemistry, Sahlgrenska University Hospital, Gothenburg, Sweden
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18
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[Preventative and therapeutic relapse strategies after allogeneic hematopoietic stem cell transplantation: Guidelines from the Francophone society of bone marrow transplantation and cellular therapy (SFGM-TC)]. Bull Cancer 2017; 104:S84-S98. [PMID: 29179894 DOI: 10.1016/j.bulcan.2017.05.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Accepted: 05/01/2017] [Indexed: 12/20/2022]
Abstract
Disease relapse remains the first cause of mortality of hematological malignancies after allogeneic hematopoietic stem cell transplantation (allo-HCT). The risk of recurrence is elevated in patients with high-risk cytogenetic or molecular abnormalities, as well as when allo-HCT is performed in patients with refractory disease or with persistent molecular or radiological (PET-CT scan) residual disease. Within the frame of the 7th annual workshops of the francophone society for bone marrow transplantation and cellular therapy, the working group reviewed the literature in order to elaborate unified guidelines for the prevention and treatment of relapse after allo-HCT. For high risk AML and MDS, a post transplant maintenance strategy is possible, using hypomethylating agents or TKI anti-FLT3 when the target is present. For Philadelphia positive ALL, there was a consensus for the use of post-transplant TKI maintenance. For lymphomas, there are no strong data on the use of post-transplant maintenance, and hence a preemptive strategy is recommended based on modulation of immunosuppression, close follow-up of donor chimerism, and donor lymphocytes infusion. For multiple myeloma, even though the indication of allo-HCT is controversial, our recommendation is post transplant maintenance using bortezomib, due to its a good toxicity profile without increasing the risk of GVHD.
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19
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Bar M, Flowers MED, Storer BE, Chauncey TR, Pulsipher MA, Thakar MS, Bethge W, Storb R, Maloney DG, Sandmaier BM. Reversal of Low Donor Chimerism after Hematopoietic Cell Transplantation Using Pentostatin and Donor Lymphocyte Infusion: A Prospective Phase II Multicenter Trial. Biol Blood Marrow Transplant 2017; 24:308-313. [PMID: 29032276 DOI: 10.1016/j.bbmt.2017.10.016] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 10/09/2017] [Indexed: 11/17/2022]
Abstract
In a multicenter, prospective, phase II study we evaluated the safety and efficacy of pentostatin followed by donor lymphocyte infusion (DLI) in patients with low donor Tcell chimerism after allogeneic hematopoietic cell transplantation (HCT). Thirty-six patients with low donor blood CD3 chimerism were enrolled in this study. Thirty-five patients received a total of 41 DLIs after a dose of pentostatin, and 1 patient received pentostatin only. Median donor CD3 chimerism prompting the initiation of pentostatin and DLI was 28% (range, 5% to 47%). Responses (defined by increases in donor CD3 chimerism ≥10% maintained to day 56 post-DLI) were seen in 16 patients (44.4%) with a median rise in CD3 donor chimerism to 64% (range, 48% to 100%). There was a trend for better responses among 21 patients who received first treatment within 100 days after transplant (57% response rate) compared with15 patients who received first treatment more than 100 days after HCT (27% response rate, P = .07). Fourteen patients (39%) developed grades II to IV acute graft-versus-host disease (GVHD) at a median of 10 days (range, 0 to 83) after DLI. Ten patients (28%) developed extensive chronic GVHD. Seventeen patients (47%) developed new grade 4 cytopenias after DLI. There was no difference in relapse between nonresponders and responders. Twenty-eight patients (78%) died, most (n = 21) because of relapse. Five of 16 responders (31%) are alive, all disease-free, at a median of 60 months (range, 21 to 132) after DLI. Six of 20 nonresponders (30%) are alive at a median of 47 months (range, 16 to 100) after DLI, 3 in complete remission. Pentostatin and DLI had acceptable toxicity and appeared to increase low donor CD3 chimerism after HCT but had no impact on mortality.
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Affiliation(s)
- Merav Bar
- Clinical Research Division, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington
| | - Mary E D Flowers
- Clinical Research Division, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington
| | - Barry E Storer
- Clinical Research Division, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington
| | - Thomas R Chauncey
- Clinical Research Division, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington; VA Puget Sound Health Care System, Seattle, Washington
| | - Michael A Pulsipher
- Hematology, Oncology and Blood & Marrow Transplantation, Children's Hospital Los Angeles, Los Angeles, California
| | - Monica S Thakar
- Pediatric Blood & Marrow Transplant Program, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Wolfgang Bethge
- Medical Center, Department of Hematology and Oncology, University Hospital Tuebingen, Tuebingen, Germany
| | - Rainer Storb
- Clinical Research Division, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington
| | - David G Maloney
- Clinical Research Division, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington
| | - Brenda M Sandmaier
- Clinical Research Division, Fred Hutchinson Cancer Research Center, University of Washington, Seattle, Washington.
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20
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Lejman M, Drabko K, Styka B, Winnicka D, Babicz M, Jaszczuk I, Kowalczyk JR. Usefulness of Post-Transplant Hematopoietic Chimera Monitoring by Use of the Quantitative Fluorescence Polymerase Chain Reaction Method. Transplant Proc 2017; 49:1903-1910. [PMID: 28923646 DOI: 10.1016/j.transproceed.2017.04.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2017] [Revised: 03/22/2017] [Accepted: 04/04/2017] [Indexed: 02/05/2023]
Abstract
BACKGROUND In the light of an increasing number of hematopoietic stem cell transplantations and more frequent use of reduced-intensity conditioning as preparative regimens for hematopoietic stem cell transplantation, post-transplant cell chimera monitoring is considered a necessity. METHODS The quantitative fluorescence polymerase chain reaction method, along with the commercial AmpFSTR SGMPlus kit, was applied in research on hematopoietic chimeras. RESULTS The total of 102 patients who had undergone allogenic transplantations were investigated. Chimerism monitoring was commenced on the seventh day after transplantation and lasted up to 12 years in some cases, according to the instituted schedule. CONCLUSIONS The kit has been shown to be fully sufficient for determining genetic profiles of recipients and donors and selecting informative markers. The method has been proven effective and satisfactory for assessing quantitative chimeras.
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Affiliation(s)
- M Lejman
- Department of Pediatric Hematology, Oncology, and Transplantology, University Children's Hospital, Lublin, Poland.
| | - K Drabko
- Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, Lublin, Poland
| | - B Styka
- Department of Pediatric Hematology, Oncology, and Transplantology, University Children's Hospital, Cytogenetic Laboratory, Lublin, Poland
| | - D Winnicka
- Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, Lublin, Poland
| | - M Babicz
- Department of Pediatric Hematology, Oncology, and Transplantology, University Children's Hospital, Cytogenetic Laboratory, Lublin, Poland
| | - I Jaszczuk
- Department of Pediatric Hematology, Oncology, and Transplantology, University Children's Hospital, Lublin, Poland
| | - J R Kowalczyk
- Department of Pediatric Hematology, Oncology, and Transplantology, University Children's Hospital, Lublin, Poland
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21
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Systematic comparison of donor chimerism in peripheral blood and bone marrow after hematopoietic stem cell transplantation. Blood Cancer J 2017; 7:e566. [PMID: 28574489 PMCID: PMC5520393 DOI: 10.1038/bcj.2017.42] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
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22
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Yafour N, Beckerich F, Bulabois C, Chevallier P, Daguindau E, Dumesnil C, Guillaume T, Huynh A, Masouridi Levrat S, Menard A, Pautas C, Poiré X, Ravinet A, Michallet M, Bazarbachi A. How to prevent relapse after allogeneic hematopoietic stem cell transplantation in patients with acute leukemia and myelodysplastic syndrome. Curr Res Transl Med 2017; 65:65-69. [DOI: 10.1016/j.retram.2017.06.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2017] [Revised: 06/02/2017] [Accepted: 06/06/2017] [Indexed: 12/24/2022]
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23
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Relapse of AML after hematopoietic stem cell transplantation: methods of monitoring and preventive strategies. A review from the ALWP of the EBMT. Bone Marrow Transplant 2016; 51:1431-1438. [DOI: 10.1038/bmt.2016.167] [Citation(s) in RCA: 147] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Revised: 05/03/2016] [Accepted: 05/05/2016] [Indexed: 02/07/2023]
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24
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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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25
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Horn B, Petrovic A, Wahlstrom J, Dvorak CC, Kong D, Hwang J, Expose-Spencer J, Gates M, Cowan MJ. Chimerism-based pre-emptive immunotherapy with fast withdrawal of immunosuppression and donor lymphocyte infusions after allogeneic stem cell transplantation for pediatric hematologic malignancies. Biol Blood Marrow Transplant 2015; 21:729-37. [PMID: 25644958 DOI: 10.1016/j.bbmt.2014.12.029] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2014] [Accepted: 12/23/2014] [Indexed: 11/25/2022]
Abstract
The presence of increasing host chimerism or persistent mixed chimerism (MC) after hematopoietic stem cell transplantation for leukemia in children is a predictor of relapse. To reduce the risk of relapse, we prospectively studied post-transplantation chimerism-based immunotherapy (IT) using fast withdrawal of immunosuppression (FWI) and donor lymphocyte infusions (DLI) in children with early post-transplantation MC. Forty-three children with hematologic malignancies at 2 institutions were enrolled prospectively in this study from 2009 until 2012 and were followed for a mean of 42 (SD, 10) months. Twelve patients (28%) were assigned to the observation arm based on the presence of graft-versus-host disease (GVHD) or full donor chimerism (FDC), and 5 (12%) sustained early events and could not undergo intervention. Twenty-six (60%) patients with MC were assigned to IT with FWI, which started at a median of 49 days (range, 35 to 85 days) after transplantation. Fourteen patients proceeded to DLI after FWI. Toxicities of treatment included GVHD, which developed in 19% of patients undergoing intervention, with 1 of 26 (4%) dying from GVHD and 1 (4%) still requiring therapy for chronic GVHD 21 months after DLI. Patients with MC undergoing IT had similar 2-year event-free survival (EFS) (73%; 95% confidence interval (CI), 55% to 91%) compared with patients who achieved FDC spontaneously (83%; 95% CI, 62% to 100%); however, because 50% of all relapses in the IT occurred later than 2 years after transplantation, the EFS declined to 55% (95% CI, 34% to 76%) at 42 (SD, 11) months. There were no late relapses in the observation group. EFS in the entire cohort was 58% (95% CI, 42% to 73%) at 42 (SD, 11) months after transplantation. Evidence of disease before transplantation remained a significant predictor of relapse, whereas development of chronic GVHD was protective against relapse.
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Affiliation(s)
- Biljana Horn
- Allergy Immunology and Blood and Marrow Transplant Division at Benioff Children's Hospital at University of California San Francisco, San Francisco, California.
| | - Aleksandra Petrovic
- Department of Blood and Marrow Transplantation, All Children's Hospital, St. Petersburg, Florida
| | - Justin Wahlstrom
- Allergy Immunology and Blood and Marrow Transplant Division at Benioff Children's Hospital at University of California San Francisco, San Francisco, California
| | - Christopher C Dvorak
- Allergy Immunology and Blood and Marrow Transplant Division at Benioff Children's Hospital at University of California San Francisco, San Francisco, California
| | - Denice Kong
- Immunogenetics and Transplantation Laboratory, University of California San Francisco, San Francisco, California
| | - Jimmy Hwang
- UCSF Helen Diller Family Comprehensive Cancer Center, San Francisco, California
| | - Jueleah Expose-Spencer
- Allergy Immunology and Blood and Marrow Transplant Division at Benioff Children's Hospital at University of California San Francisco, San Francisco, California
| | - Michael Gates
- Department of Blood and Marrow Transplantation, All Children's Hospital, St. Petersburg, Florida
| | - Morton J Cowan
- Allergy Immunology and Blood and Marrow Transplant Division at Benioff Children's Hospital at University of California San Francisco, San Francisco, California
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26
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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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27
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Chimerism analysis in peripheral blood using indel quantitative real-time PCR is a useful tool to predict post-transplant relapse in acute leukemia. Bone Marrow Transplant 2014; 50:259-65. [DOI: 10.1038/bmt.2014.254] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2014] [Revised: 09/03/2014] [Accepted: 09/04/2014] [Indexed: 01/11/2023]
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28
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Kim SY, Jeong MH, Park N, Ra E, Park H, Seo SH, Kim JY, Seong MW, Park SS. Chimerism Monitoring after Allogeneic Hematopoietic Stem Cell Transplantation Using Quantitative Real-Time PCR of Biallelic Insertion/Deletion Polymorphisms. J Mol Diagn 2014; 16:679-88. [DOI: 10.1016/j.jmoldx.2014.06.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 06/17/2014] [Accepted: 06/19/2014] [Indexed: 10/24/2022] Open
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29
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Qin XY, Li GX, Qin YZ, Wang Y, Wang FR, Liu DH, Xu LP, Chen H, Han W, Wang JZ, Zhang XH, Li JL, Li LD, Liu KY, Huang XJ. Quantitative chimerism: an independent acute leukemia prognosis indicator following allogeneic hematopoietic SCT. Bone Marrow Transplant 2014; 49:1269-77. [DOI: 10.1038/bmt.2014.158] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 05/26/2014] [Accepted: 05/30/2014] [Indexed: 11/09/2022]
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30
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Elkaim E, Picard C, Galambrun C, Barlogis V, Loundou A, Curtillet C, Oudin C, Thuret I, Chambost H, Michel G. Peripheral blood cells chimerism after unrelated cord blood transplantation in children: kinetics, predictive factors and impact on post-transplant outcome. Br J Haematol 2014; 166:557-65. [PMID: 24779895 DOI: 10.1111/bjh.12918] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Accepted: 03/19/2014] [Indexed: 11/28/2022]
Abstract
This study aimed to describe kinetics of complete donor chimerism occurrence (cDC, >99·9% donor) after unrelated cord blood transplantation (UCBT), to identify its predictive factors and its impact on post-transplant outcome. Ninety-four children who received single UCBT after a myeloablative conditioning regimen had blood chimerism evaluation at predefined post-transplant dates, using a real-time polymerase chain reaction method with 0·1% sensitivity. Cumulative incidence of cDC at 1 year post-transplantation was 61·8%. Three predictive factors were identified in multivariate analysis: history of malignant disease (P = 0·03), older age (above 2·16 years, the first quartile of age, P = 0·0055) and higher level of cord/recipient human leucocyte antigen mismatch (4/6 vs. 5-6/6, P < 0·001) increased the probability of post-transplant cDC. Although graft cell dose had a strong impact on haematological recovery, it did not apparently influence cDC occurrence. Early cDC (i.e. more than 99·9% donor chimerism on days 15-30 post-transplant) appeared useful to predict engraftment (P = 0·003) as well as acute and chronic graft-versus-host disease (GvHD). Severe acute or chronic GvHD never occurred in patients with DC ≤99·9%, suggesting than even minimal residual host haematopoiesis is associated with a very low risk of GvHD after UCBT.
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Affiliation(s)
- Elodie Elkaim
- Department of Paediatric Haematology-Oncology, APHM, La Timone Hospital, Aix-Marseille University, Marseille, France
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31
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Increasing chimerism after allogeneic stem cell transplantation is associated with longer survival time. Biol Blood Marrow Transplant 2014; 20:1139-44. [PMID: 24727332 DOI: 10.1016/j.bbmt.2014.04.003] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2013] [Accepted: 04/07/2014] [Indexed: 11/20/2022]
Abstract
Donor chimerism after allogeneic stem cell transplantation (allo-SCT) is commonly used to predict overall survival (OS) and disease-free survival (DFS). Because chimerism is observed at 1 or more times after allo-SCT and not at baseline, if chimerism is in fact associated with OS or DFS, then the occurrence of either disease progression or death informatively censors (terminates) the observed chimerism process. This violates the assumptions underlying standard statistical regression methods for survival analysis, which may lead to biased conclusions. To assess the association between the longitudinal post-allo-SCT donor chimerism process and OS or DFS, we analyzed data from 195 patients with acute myelogenous leukemia (n = 157) or myelodysplastic syndrome (n = 38) who achieved complete remission after allo-SCT following a reduced-toxicity conditioning regimen of fludarabine/intravenous busulfan. Median follow-up was 31 months (range, 1.1 to 105 months). Fitted joint longitudinal-survival time models showed that a binary indicator of complete (100%) donor chimerism and increasing percent of donor T cells were significantly associated with longer OS, whereas decreasing percent of donor T cells was highly significantly associated with shorter OS. Our analyses illustrate the usefulness of modeling repeated post-allo-SCT chimerism measurements as individual longitudinal processes jointly with OS and DFS to estimate their relationships.
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32
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Shah NN, Borowitz MJ, Robey NC, Gamper CJ, Symons HJ, Loeb DM, Wayne AS, Chen AR. Feasibility of treating post-transplantation minimal residual disease in children with acute leukemia. Biol Blood Marrow Transplant 2014; 20:1000-7. [PMID: 24680975 DOI: 10.1016/j.bbmt.2014.03.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2014] [Accepted: 03/19/2014] [Indexed: 12/11/2022]
Abstract
Outcomes are poor for patients with hematologic malignancies who experience overt relapse after allogeneic hematopoietic stem cell transplantation (HCT). Data on outcomes of post-transplantation minimal residual disease (MRD) are limited. In this single-institution, retrospective cohort analysis of children with acute leukemia and myelodysplastic syndrome, we document the pattern of relapse with a primary focus on outcomes of post-transplantation MRD. Forty of 93 patients (43%) who underwent a first allogeneic HCT and had systematic pretransplantation and post-transplantation MRD evaluations at +30, +60, +90, +180 days and +1 and +2 years post-transplantation experienced relapse. The median time to relapse was 4.8 months post-transplantation, with a median survival of 4 months post-relapse. Despite frequent, systematic, routine post-HCT disease restaging evaluation, 31 patients (78%) presented with overt disease at the time of relapse. Seven patients with acute leukemia who had post-transplantation MRD presented at a median of 1 month post-transplantation. Owing to rapid disease progression or treatment-related mortality, there was no improvement in survival in those patients whose leukemia was detected in a state of MRD post-transplantation. Our results suggest that early intervention strategies targeting post-transplantation MRD for relapse prevention in acute leukemia may not be feasible.
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Affiliation(s)
- Nirali N Shah
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland; Pediatric Oncology, Johns Hopkins University, Baltimore, Maryland.
| | | | - Nancy C Robey
- Pediatric Oncology, Johns Hopkins University, Baltimore, Maryland
| | | | - Heather J Symons
- Pediatric Oncology, Johns Hopkins University, Baltimore, Maryland
| | - David M Loeb
- Pediatric Oncology, Johns Hopkins University, Baltimore, Maryland
| | - Alan S Wayne
- Pediatric Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland; Children's Center for Cancer and Blood Diseases, Children's Hospital Los Angeles, Keck School of Medicine, University of Southern California, Los Angeles, California
| | - Allen R Chen
- Pediatric Oncology, Johns Hopkins University, Baltimore, Maryland
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33
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Lucchini G, Bader P. Hematopoietic stem cell transplantation and immunotherapy for pediatric acute myeloid leukemia: an open challenge. Expert Rev Hematol 2014; 7:291-300. [DOI: 10.1586/17474086.2014.878644] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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34
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Andreani M, Testi M, Lucarelli G. Mixed chimerism in haemoglobinopathies: from risk of graft rejection to immune tolerance. ACTA ACUST UNITED AC 2014; 83:137-46. [DOI: 10.1111/tan.12313] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- M. Andreani
- Laboratory of Immunogenetics and Transplant Biology; IME Foundation at Polyclinic of Tor Vergata; Rome Italy
| | - M. Testi
- Laboratory of Immunogenetics and Transplant Biology; IME Foundation at Polyclinic of Tor Vergata; Rome Italy
| | - G. Lucarelli
- International Center for Transplantation in Thalassemia and Sickle Cell Anemia; IME Foundation at Polyclinic of Tor Vergata; Rome Italy
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35
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Abstract
Molecular surveillance of hematopoietic chimerism is an important part of the routine diagnostic program in patients after allogeneic stem cell transplantation. Chimerism testing permits early prediction and documentation of successful engraftment and facilitates early risk assessment of impending graft rejection. In patients transplanted for treatment of malignant hematologic disorders, monitoring of chimerism can provide an early indication of incipient disease relapse. The investigation of chimerism has therefore become an indispensable tool for the management of patients during the post-transplant period. Increasing use of reduced-intensity conditioning, which is associated with prolonged duration of mixed hematopoietic chimerism, has further increased the clinical importance of chimerism analysis. At present, the most commonly used technical approach to the investigation of chimerism is microsatellite analysis by polymerase chain reaction. The investigation of chimerism within specific leukocyte subsets isolated from peripheral blood or bone marrow samples by flow sorting- or magnetic bead-based techniques provides more specific information on processes underlying the dynamics of donor/recipient chimerism. Moreover, cell subset-specific analysis permits the assessment of impending complications at a significantly higher sensitivity, thus providing a basis for earlier treatment decisions.
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Affiliation(s)
- Sandra Preuner
- Children's Cancer Research Institute (CCRI), Vienna, Austria
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36
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Kwon M, Martínez-Laperche C, Balsalobre P, Serrano D, Anguita J, Gayoso J, Díez-Martín JL, Buño I. Early peripheral blood and T-cell chimerism dynamics after umbilical cord blood transplantation supported with haploidentical cells. Bone Marrow Transplant 2013; 49:212-8. [PMID: 24212562 DOI: 10.1038/bmt.2013.177] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/19/2013] [Accepted: 09/23/2013] [Indexed: 11/09/2022]
Abstract
Single-unit umbilical cord blood (CB) SCT is limited by low total nucleated cell (TNC) dose. Co-infusion of CD34+ cells from a third party HLA-mismatched donor, known as dual or haplo-cord transplant, reduces the period of post-transplant neutropenia and related complications. The aim of this study was to analyze the value of early post-transplant peripheral blood (PB) and T cell chimerism after 28 dual transplants regarding CB engraftment. Cumulative incidence of myeloid engraftment at 30 days was 93% with a median time to engraftment of 14 days (10-29). Patients who developed CB graft failure (n=5) showed very low percentages of CB cells on days +14, +21 and +28 with decreasing dynamics. On the other hand, percentages of CB cells in patients who achieved CB engraftment increased over time. Interestingly, such patients showed two distinct chimerism dynamics in PB, but all of them showed a predominance of CB T cells early after SCT with increasing dynamics over time. Early post-transplant chimerism dynamics in PB and T cells predicts CB graft failure enabling rapid therapeutic measures to be applied. On the other hand, early increasing percentages of CB T cells correlates with ultimate CB engraftment.
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Affiliation(s)
- M Kwon
- Gregorio Marañón Institute for Health Research, Department of Hematology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - C Martínez-Laperche
- Gregorio Marañón Institute for Health Research, Department of Hematology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - P Balsalobre
- Gregorio Marañón Institute for Health Research, Department of Hematology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - D Serrano
- Gregorio Marañón Institute for Health Research, Department of Hematology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - J Anguita
- Gregorio Marañón Institute for Health Research, Department of Hematology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - J Gayoso
- Gregorio Marañón Institute for Health Research, Department of Hematology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - J L Díez-Martín
- Gregorio Marañón Institute for Health Research, Department of Hematology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
| | - I Buño
- Gregorio Marañón Institute for Health Research, Department of Hematology, Hospital General Universitario Gregorio Marañón, Madrid, Spain
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37
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Risk-adapted donor lymphocyte infusion based on chimerism and donor source in pediatric leukemia. Blood Cancer J 2013; 3:e137. [PMID: 23995046 PMCID: PMC3763390 DOI: 10.1038/bcj.2013.39] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2013] [Accepted: 07/23/2013] [Indexed: 11/08/2022] Open
Abstract
Donor lymphocyte infusion (DLI) is commonly used to treat leukemia relapse following stem cell transplantation. In florid relapse, however, the efficacy of DLI is limited with substantial risk of severe graft-versus-host disease (GvHD). Here, we develop a novel risk-adapted strategy characterized by pre-emptive DLI initiated at the time of mixed chimerism, a small starting dose based on donor source, dose-escalation guided by real-time chimerism monitoring and withholding of DLI immediately in patients achieving full donor chimerism. A total of 178 DLIs were given to 38 patients with mixed chimerism; thereafter, 33 patients (86.8%) had donor chimerism successfully increased, including 30 (78.9%) who had chimerism fully converted back to 100% donor. Cumulative incidence of relapse was significantly lower (P=0.00004) and overall survival higher (P=0.0003) in patients with chimerism fully corrected as compared with those of patients whose chimerism remained mixed. Only 13.2% of the patients developed acute grade III-IV GvHD with no associated mortality. In conclusion, the risk-adapted DLI strategy is useful in minimizing the risk of childhood leukemia relapse, GvHD and death.
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38
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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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39
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Rossi G, Carella AM, Minervini MM, Savino L, Fontana A, Pellegrini F, Greco MM, Merla E, Quarta G, Loseto G, Capalbo S, Palumbo G, Cascavilla N. Minimal residual disease after allogeneic stem cell transplant: a comparison among multiparametric flow cytometry, Wilms tumor 1 expression and chimerism status (Complete chimerism versus Low Level Mixed Chimerism) in acute leukemia. Leuk Lymphoma 2013; 54:2660-6. [PMID: 23547840 DOI: 10.3109/10428194.2013.789508] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Relapse represents the main cause of treatment failure after allogeneic stem cell transplant (allo-SCT). The detection of minimal residual disease (MRD) by multiparametric flow cytometry (MFC), chimerism, cytogenetics and molecular analysis may be critical to prevent relapse. Therefore, we assessed the overall agreement among chimerism (low level mixed chimerism [LL-MC] vs. complete chimerism [CC]), MFC and Wilms tumor 1 (WT1) mRNA to detect MRD and investigated the impact of MRD obtained from the three methods on patient outcome. Sixty-seven fresh bone marrow (BM) samples from 24 patients (17 acute myeloid leukemia [AML], seven acute lymphoblastic leukemia [ALL]) in complete remission (CR) after allo-SCT were investigated at different time points. A moderate agreement was found among the three techniques investigated. A higher concordance between positive results from MFC (75.0% vs. 32.7%, p = 0.010) and WT1 (58.3% vs. 29.1%, p = 0.090) was detected among LL-MC rather than CC samples. Relapse-free survival (RFS) and overall survival (OS) were found to be higher in MRD negative patients than in MRD positive patients analyzed with MFC and WT1. Our results discourage the use of low autologous signals as the only marker of MRD, and suggest the usefulness of MFC and WT1 real-time quantitative polymerase chain reaction (RQ-PCR) in stratifying patients with respect to risk of relapse.
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Affiliation(s)
- Giovanni Rossi
- Department of Hematology and Stem Cell Transplantation Unit
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40
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LaBelle JL, Cunningham JM. Stem cell transplant as an immunomodulatory tool for children with hematologic malignancies. Am Soc Clin Oncol Educ Book 2013:0011300347. [PMID: 23714543 DOI: 10.14694/edbook_am.2013.33.e347] [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] [Indexed: 06/02/2023]
Abstract
Allogeneic stem cell transplantation (alloHSCT) is the most common and effective form of immunotherapy used for treatment of pediatric leukemias. A combination of graft manipulation, donor selection, fine-tuning of conditioning regimens, and use of lower and novel forms of immunosuppression following transplant has maximized the tolerability of alloHSCT in children. This outcome has facilitated new advances in disease-specific transplant regimens that seek to amplify the antitumor effects of the allograft, while reducing transplant-related mortality. However, disease relapse remains the preeminent challenge to the success of transplantation as a modality for successful treatment of high-risk disease. Separating graft versus host disease (GVHD) from graft versus leukemia (GVL) remains the most significant obstacle to enhancing disease-free survival. However, with increased clarity and discrimination in the effector mechanisms responsible for GVHD and/or GVL in patients of all ages, a new wave of clinical trials has become feasible that harnesses GVL effects to treat patients with high-risk myeloid and lymphoid malignancies. Exciting progress is being made in the use of alloHSCT with donor lymphocyte infusions (DLIs) in almost all forms of pediatric hematologic malignancies. This advance sets the stage for the use of HSCT and/or DLI in conjunction with novel disease-specific post-transplant therapies using small molecule therapeutics, tumor vaccines, and novel antibody therapies.
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Affiliation(s)
- James L LaBelle
- From the Department of Pediatrics, Section of Hematology/Oncology/Stem Cell Transplantation, Comer Children's Hospital, Chicago, IL, and Pritzker School of Medicine, University of Chicago, Chicago, IL
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41
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Toor AA, Sabo RT, Chung HM, Roberts C, Manjili RH, Song S, Williams DC, Edmiston W, Gatesman ML, Edwards RW, Ferreira-Gonzalez A, Clark WB, Neale MC, McCarty JM, Manjili MH. Favorable outcomes in patients with high donor-derived T cell count after in vivo T cell-depleted reduced-intensity allogeneic stem cell transplantation. Biol Blood Marrow Transplant 2012; 18:794-804. [PMID: 22005648 PMCID: PMC4932864 DOI: 10.1016/j.bbmt.2011.10.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2011] [Accepted: 10/10/2011] [Indexed: 12/13/2022]
Abstract
Patients with hematologic malignancies were conditioned using a rabbit antithymocyte globulin-based reduced-intensity conditioning regimen for allogeneic stem cell transplantation. Donor-derived CD3(+) cell count (ddCD3), a product of CD3(+) cell chimerism and absolute CD3(+) cell count, when <110/μL at 8 weeks post-stem cell transplantation predicted a high risk of sustained mixed chimerism and relapse. Alternatively, patients with a higher ddCD3 developed graft-versus-host disease more frequently, and when partially chimeric, had higher rates of conversion to full donor chimerism after withdrawal of immunosuppression. Early data from our small cohort of patients indicate that ddCD3 at 8 weeks may be used to guide decisions regarding withdrawal of immunosuppression and administration of donor lymphocyte infusion in partially T cell-depleted reduced-intensity regimens.
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Affiliation(s)
- Amir A Toor
- Bone Marrow Transplant Program, Department of Internal Medicine, Massey Cancer Center, Virginia Commonwealth University, Richmond, Virginia 23298-0157, USA.
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42
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The EuroChimerism concept for a standardized approach to chimerism analysis after allogeneic stem cell transplantation. Leukemia 2012; 26:1821-8. [DOI: 10.1038/leu.2012.66] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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43
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Petrovic A, Hale G. Clinical options after failure of allogeneic hematopoietic stem cell transplantation in patients with hematologic malignancies. Expert Rev Clin Immunol 2011; 7:515-25; quiz 526-7. [PMID: 21787195 DOI: 10.1586/eci.11.24] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Disease recurrence is the single most common cause of death after allogeneic or autologous hematopoietic stem cell transplantation (HSCT). Disease status and chemosensitivity at the time of transplantation, as well as the development of graft-versus-host disease (GVHD), are factors known to influence the risk of relapse post-HSCT. Both acute and chronic GVHD have been associated with decreased relapse rates; however, owing to toxicity, overall survival is not consistently improved in these patients. Furthermore, there is a transient period of immunodeficiency after HSCT, which may permit residual malignant cells to proliferate early in the post-transplant course, before the donor immune system can establish a graft-versus-tumor response. Patients who fail an initial HSCT have an extremely poor outcome; therefore, maneuvers to prevent, identify and treat recurrent disease as early as possible in these situations are necessary. Strategies to distinguish graft-versus-tumor from GVHD, to enhance both general and disease-specific immune reconstitution after transplantation, and to increase donor-mediated anti-host immune reactions are being investigated in clinical trials. Single agent nontoxic post-HSCT chemotherapy, cellular therapies and second allogeneic HSCT using reduced intensity regimens are among the modalities under investigation.
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Affiliation(s)
- Aleksandra Petrovic
- Division of Hematology, Oncology, Blood & Marrow Transplantation, All Children's Hospital, 601 5th Street South, St. Petersburg, FL 33701, USA
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44
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Preemptive immunotherapy in childhood acute myeloid leukemia for patients showing evidence of mixed chimerism after allogeneic stem cell transplantation. Blood 2011; 118:5681-8. [PMID: 21948300 DOI: 10.1182/blood-2011-04-348805] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Previous studies have shown that children with acute myeloid leukemia (AML) who developed mixed chimerism (MC) were at high risk for relapse after allogeneic stem-cell transplantation (allo-SCT). We investigated the feasibility of intensified preemptive immunotherapy in children receiving allo-SCT for AML. Eighty-four children were registered in our trial from May 2005 to April 2009; of these, 71 fulfilled the inclusion criteria and were treated according to the study protocol. Serial and semiquantitative analyses of posttransplantation chimerism were performed. Defined immunotherapy approaches were considered in MC patients. Continuous complete chimerism (CC) was observed in 51 of 71 patients. MC was detected in 20 patients and was followed by immunotherapy in 13. Six of 13 MC patients returned to CC without toxicity and remained in long-term remission. Overall, the probability of event-free survival (pEFS) was 66% (95% confidence interval [95% CI] = 53%-76%) for all patients and 46% (95% CI = 19%-70%) in MC patients with intervention; however, this number increased to 71% (95% CI = 26%-92%) in 7 of 13 MC patients on immunotherapy who were in remission at the time of transplantation. All MC patients without intervention relapsed. These results suggest that MC is a prognostic factor for impending relapse in childhood AML, and that preemptive immunotherapy may improve the outcome in defined high-risk patients after transplantation.
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Bautista F, Moreno L, Fernández-Navarro JM, Senent L, Andrés MM, Castel V, Verdeguer A. Evaluation of chimerism by quantitative PCR analysis of DNA polymorphism after allogeneic hematopoietic stem cell transplantation in a pediatric population with malignancies. Pediatr Transplant 2011; 15:81-7. [PMID: 21159107 DOI: 10.1111/j.1399-3046.2010.01416.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Relapse remains the major pitfall to success for Allo-HSCT in children with malignancies. Ninety-one patients undergoing Allo-HSCT were retrospectively reviewed. Chimerism status was evaluated at days +30, +60, and +100 in PB. VNTR-PCR and STR-PCR were used for this purpose. Thirty-one patients recurred (34%) and none survived. Thirty-two remain alive in CR (35%). Patients who achieved a CC at those days had a significant higher RFS and OS than patients who did not. Twelve patients showing PMC had an increased risk of recurrence (p=0.02. OR 7.7). In the univariate analysis, the probability of death was higher in patients who were not in first CR before transplant (p=0.008.OR 2.09) and in those receiving cells not from PB (p=0.002.OR 2.03). In the multivariate analysis, the absence of CC at day +100 was associated with a higher probability of relapse (p=0.004. OR 10.8) and death (p=0.016. OR 9.3). Serial chimerism PCR-based analyses of polymorphic DNA markers can predict relapse. Patients with PMC are at the highest risk of recurrence. Patients receiving an Allo-HSCT in first CR from PB who achieve a CC at day +100 have a better outcome.
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Affiliation(s)
- F Bautista
- Pediatric Oncology Unit, Hospital Universitario La Fe, Valencia, Spain
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Kwon M, Serrano D, Gayoso J, Anguita J, Buño I, Díez-Martín JL. [Donor lymphocyte infusions after allogeneic stem cell transplantation: single center clinical experience]. Med Clin (Barc) 2010; 135:498-502. [PMID: 20673927 DOI: 10.1016/j.medcli.2010.01.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2009] [Revised: 01/06/2010] [Accepted: 01/12/2010] [Indexed: 10/19/2022]
Abstract
BACKGROUND AND OBJECTIVE Donor lymphocyte infusions (DLI) have proven to be useful for the treatment of relapse after allogenic stem cell transplantation (SCT) and for the conversion of mixed chimerism (MC) into complete chimerism. The objective of the present study is to analyze the results of DLI used in both scenarios in a single centre. PATIENTS AND METHOD Twenty five patients were retrospectively analyzed: DLI was used for relapse treatment in 18 cases and for conversion of mixed chimerism in 7. RESULTS Six patients from the first group (35%) showed response in a median of 137 days (23-250). After a median follow-up of 12 months (7 months-8 years), 5 patients remained in complete remission. Additionally, one patient recieved prophylactic DLI with good results. Six of the 7 patients (85%) who received DLI for MC showed response. After a median follow-up of 7 years (6-8), 4 patients (57%) remained in remission. CONCLUSIONS In our experience, DLI showed clinical benefit in the management of mixed chimerism, although it was less useful in the management of relapse. Novel strategies should be considered in high risk patients.
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Affiliation(s)
- Mi Kwon
- Servicio de Hematología, Hospital General Universitario Gregorio Marañón, Madrid, España.
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Cyclosporine levels and rate of graft rejection following non-myeloablative conditioning for allogeneic hematopoietic SCT. Bone Marrow Transplant 2010; 46:740-6. [DOI: 10.1038/bmt.2010.187] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Kröger N, Bacher U, Bader P, Böttcher S, Borowitz MJ, Dreger P, Khouri I, Macapinlac HA, Macapintac H, Olavarria E, Radich J, Stock W, Vose JM, Weisdorf D, Willasch A, Giralt S, Bishop MR, Wayne AS. NCI First International Workshop on the Biology, Prevention, and Treatment of Relapse after Allogeneic Hematopoietic Stem Cell Transplantation: report from the Committee on Disease-Specific Methods and Strategies for Monitoring Relapse following Allogeneic Stem Cell Transplantation. Part I: Methods, acute leukemias, and myelodysplastic syndromes. Biol Blood Marrow Transplant 2010; 16:1187-211. [PMID: 20558311 DOI: 10.1016/j.bbmt.2010.06.008] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Accepted: 06/06/2010] [Indexed: 12/14/2022]
Abstract
Relapse has become the major cause of treatment failure after allogeneic stem cell transplantation. Outcome of patients with clinical relapse after transplantation generally remains poor, but intervention prior to florid relapse improves outcome for certain hematologic malignancies. To detect early relapse or minimal residual disease, sensitive methods such as molecular genetics, tumor-specific molecular primers, fluorescein in situ hybridization, and multiparameter flow cytometry (MFC) are commonly used after allogeneic stem cell transplantation to monitor patients, but not all of them are included in the commonly employed disease-specific response criteria. The highest sensitivity and specificity can be achieved by molecular monitoring of tumor- or patient-specific markers measured by polymerase chain reaction-based techniques, but not all diseases have such targets for monitoring. Similar high sensitivity can be achieved by determination of donor chimerism, but its specificity regarding detection of relapse is low and differs substantially among diseases. Here, we summarize the current knowledge about the utilization of such sensitive monitoring techniques based on tumor-specific markers and donor cell chimerism and how these methods might augment the standard definitions of posttransplant remission, persistence, progression, relapse, and the prediction of relapse. Critically important is the need for standardization of the different residual disease techniques and to assess the clinical relevance of minimal residual disease and chimerism surveillance in individual diseases, which in turn, must be followed by studies to assess the potential impact of specific interventional strategies.
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Affiliation(s)
- Nicolaus Kröger
- Department for Stem Cell Transplantation, University Medical Center Hamburg-Eppendorf, Martinstrasse 52, Hamburg, Germany.
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Lankester AC, Bierings MB, van Wering ER, Wijkhuijs AJM, de Weger RA, Wijnen JT, Vossen JM, Versluys B, Egeler RM, van Tol MJD, Putter H, Révész T, van Dongen JJM, van der Velden VHJ, Schilham MW. Preemptive alloimmune intervention in high-risk pediatric acute lymphoblastic leukemia patients guided by minimal residual disease level before stem cell transplantation. Leukemia 2010; 24:1462-9. [PMID: 20535148 DOI: 10.1038/leu.2010.133] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Relapse of pediatric acute lymphoblastic leukemia (ALL) remains the main cause of treatment failure after allogeneic stem cell transplantation (alloSCT). A high level of minimal residual disease (MRD) before alloSCT has been shown to predict these relapses. Patients at risk might benefit from a preemptive alloimmune intervention. In this first prospective, MRD-guided intervention study, 48 patients were stratified according to pre-SCT MRD level. Eighteen children with MRD level >or=1 x 10(-4) were eligible for intervention, consisting of early cyclosporine A tapering followed by consecutive, incremental donor lymphocyte infusions (n=1-4). The intervention was associated with graft versus host disease >or=grade II in only 23% of patients. Event-free survival in the intervention group was 19%. However, in contrast with the usual early recurrence of leukemia, relapses were delayed up to 3 years after SCT. In addition, several relapses presented at unusual extramedullary sites suggesting that the immune intervention may have altered the pattern of leukemia recurrence. In 8 out of 11 evaluable patients, relapse was preceded by MRD recurrence (median 9 weeks, range 0-30). We conclude that in children with high-risk ALL, immunotherapy-based regimens after SCT are feasible and may need to be further intensified to achieve total eradication of residual leukemic cells.
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Affiliation(s)
- A C Lankester
- Department of Pediatrics, Leiden University Medical Center, Leiden, The Netherlands
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Gineikiene E, Stoskus M, Griskevicius L. Recent advances in quantitative chimerism analysis. Expert Rev Mol Diagn 2010; 9:817-32. [PMID: 19895227 DOI: 10.1586/erm.09.66] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Quantitative chimerism analysis is a diagnostic tool used to monitor engraftment kinetics after allogeneic stem cell transplantation. It reflects the proportion of recipient and donor genotypes and is based on the identification of genetic markers characteristic to a given transplant pair. Currently, PCR amplification of short tandem repeats and single-nucleotide polymorphism-specific quantitative real-time PCR are the most widely used techniques for this purpose. In this review, we will address advances as well as technology-specific imperfections, of both techniques that have emerged over the recent years. We will discuss new principles that may simplify assay design, and improve its robustness and reliability. A better chimerism assay could then guide clinical interventions and may, eventually, improve the outcome of allogeneic stem cell transplantation.
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Affiliation(s)
- Egle Gineikiene
- Department of Molecular and Regenerative Medicine, Hematology, Oncology and Transfusion Medicine Center, Vilnius University Hospital Santariskiu Clinics, Santariskiu 2, LT-08661, Vilnius, Lithuania.
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