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Kricke S, Rao K, Adams S. The significance of mixed chimaerism and cell lineage chimaerism monitoring in paediatric patients post haematopoietic stem cell transplant. Br J Haematol 2022; 198:625-640. [PMID: 35421255 DOI: 10.1111/bjh.18190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/23/2022] [Accepted: 03/25/2022] [Indexed: 11/28/2022]
Abstract
Haematopoietic stem cell transplants (HSCTs) are carried out across the world to treat haematological and immunological diseases which would otherwise prove fatal. Certain diseases are predominantly encountered in paediatric patients, such severe primary immunodeficiencies (PID) and diseases of inborn errors of metabolism (IEM). Chimaerism testing for these disorders has different considerations compared to adult diseases. This review focuses on the importance of cell-lineage-specific chimaerism testing and examines the appropriate cell populations to be assessed in individual paediatric patient groups. By analysing disease-associated subpopulations, abnormalities are identified significantly earlier than in whole samples and targeted clinical decisions can be made. Chimaerism methods have evolved over time and lead to an ever-increasing level of sensitivity and biomarker arrays to distinguish between recipient and donor cells. Short tandem repeat (STR) is still the gold standard for routine chimaerism assessment, and hypersensitive methods such as quantitative and digital polymerase chain reaction (PCR) are leading the forefront of microchimaerism testing. The rise of molecular methods operating with minute DNA amounts has been hugely beneficial to chimaerism testing of paediatric samples. As HSCTs are becoming increasingly personalised and risk-adjusted towards a child's individual needs, chimaerism testing needs to adapt alongside these medical advances ensuring the best possible care.
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Affiliation(s)
- Susanne Kricke
- Specialist Integrated Haematology and Malignancy Diagnostic Service, Department of Haematology, Great Ormond Street Hospital for Children, London, UK
| | - Kanchan Rao
- Department of Blood and Marrow Transplantation, Great Ormond Street Hospital for Children, London, UK
| | - Stuart Adams
- Specialist Integrated Haematology and Malignancy Diagnostic Service, Department of Haematology, Great Ormond Street Hospital for Children, London, UK
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Long-term survival with mixed chimerism in patients with AML and MDS transplanted after conditioning with targeted busulfan, fludarabine, and thymoglobulin. Bone Marrow Transplant 2021; 57:198-206. [PMID: 34741096 DOI: 10.1038/s41409-021-01518-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Revised: 10/19/2021] [Accepted: 10/22/2021] [Indexed: 11/08/2022]
Abstract
We evaluated long-term outcome in 40 patients with MDS or AML, transplanted from related or unrelated donors following conditioning with targeted busulfan (Bu, over 4 days), fludarabine (Flu, 120 [n = 23] or 250 [n = 17] mg/m2) and thymoglobulin (THY). Compared to 95 patients conditioned with Bu/Cyclophosphamide (Cy) without THY, BuFluTHY-conditioned patients had lower rates of chronic graft-vs.-host disease (GVHD). Adjusted hazard ratios (HR) for BuFlu(120)THY and BuFlu(250)THY-conditioned patients were 1.60 (95% confidence interval (CI) 0.66-3.86) and 1.87 (0.68-5.11), respectively, for relapse; 0.77 (0.30-1.99) and 1.32 (0.54-3.23) for non-relapse mortality; 0.81 (0.42-1.57) and 1.38 (0.72-2.57) for overall mortality; and 0.78 (0.30-2.05) and 1.62 (0.63-4.41) for relapse or death (failure for relapse-free survival). At one year, 45% of BuFlu(120 or 250)THY-conditioned patients had mixed CD3+ chimerism compared to 0% with BuCy (p < 0.0001). None of 7 patients with long-term mixed chimerism had chronic GVHD; two relapsed, five remained stable mixed chimeras. THY is effective in reducing chronic GVHD, and long-term mixed T-cell chimerism can be compatible with relapse-free survival. However, Thy may also be associated with an increased risk of relapse and, dose-dependent, with non-relapse mortality.
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Dholaria B, Savani BN, Hamilton BK, Oran B, Liu HD, Tallman MS, Ciurea SO, Holtzman NG, Ii GLP, Devine SM, Mannis G, Grunwald MR, Appelbaum F, Rodriguez C, El Chaer F, Shah N, Hashmi SK, Kharfan-Dabaja MA, DeFilipp Z, Aljurf M, AlShaibani A, Inamoto Y, Jain T, Majhail N, Perales MA, Mohty M, Hamadani M, Carpenter PA, Nagler A. Hematopoietic Cell Transplantation in the Treatment of Newly Diagnosed Adult Acute Myeloid Leukemia: An Evidence-Based Review from the American Society of Transplantation and Cellular Therapy. Transplant Cell Ther 2021; 27:6-20. [PMID: 32966881 DOI: 10.1016/j.bbmt.2020.09.020] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 09/10/2020] [Indexed: 12/31/2022]
Abstract
The role of hematopoietic cell transplantation (HCT) in the management of newly diagnosed adult acute myeloid leukemia (AML) is reviewed and critically evaluated in this evidence-based review. An AML expert panel, consisting of both transplant and nontransplant experts, was invited to develop clinically relevant frequently asked questions covering disease- and HCT-related topics. A systematic literature review was conducted to generate core recommendations that were graded based on the quality and strength of underlying evidence based on the standardized criteria established by the American Society of Transplantation and Cellular Therapy Steering Committee for evidence-based reviews. Allogeneic HCT offers a survival benefit in patients with intermediate- and high-risk AML and is currently a part of standard clinical care. We recommend the preferential use of myeloablative conditioning in eligible patients. A haploidentical related donor marrow graft is preferred over a cord blood unit in the absence of a fully HLA-matched donor. The evolving role of allogeneic HCT in the context of measurable residual disease monitoring and recent therapeutic advances in AML with regards to maintenance therapy after HCT are also discussed.
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Affiliation(s)
- Bhagirathbhai Dholaria
- Department of Hematology-Oncology, Vanderbilt University Medical Center, Nashville, Tennessee.
| | - Bipin N Savani
- Department of Hematology-Oncology, Vanderbilt University Medical Center, Nashville, Tennessee
| | - Betty K Hamilton
- Blood and Marrow Transplant Program, Department of Hematology and Medical Oncology, Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio
| | - Betul Oran
- Department of Stem Cell Transplantation, The University of Texas MD Anderson Cancer Center, Houston, Texas
| | - Hien D Liu
- Department of Blood and Marrow Transplant and Cellular Immunotherapy, Moffitt Cancer Center, Tampa, Florida
| | | | | | - Noa G Holtzman
- Center for Cancer Research, National Cancer Institute, Bethesda, Maryland
| | | | - Steven M Devine
- National Marrow Donor Program and Center for International Blood and Marrow Transplant Research, Minneapolis, Minnesota
| | - Gabriel Mannis
- Department of Medicine, Division of Hematology, Stanford University, Stanford, California
| | - Michael R Grunwald
- Department of Hematologic Oncology and Blood Disorders, Levine Cancer Institute, Atrium Health, Charlotte, North Carolina
| | - Frederick Appelbaum
- Fred Hutchinson Cancer Research Center; Department of Medicine, University of Washington, Seattle, Washington
| | - Cesar Rodriguez
- Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
| | - Firas El Chaer
- Division of Hematology/Oncology, University of Virginia, Charlottesville, Virginia
| | - Nina Shah
- Division of Hematology-Oncology, Department of Medicine, University of California San Francisco, San Francisco, California
| | | | - Mohamed A Kharfan-Dabaja
- Division of Hematology-Oncology and Blood and Marrow Transplantation Program, Mayo Clinic, Jacksonville, Florida
| | - Zachariah DeFilipp
- Blood and Marrow Transplant Program, Massachusetts General Hospital, Boston, Massachusetts
| | - Mahmoud Aljurf
- Department of Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - AlFadel AlShaibani
- Department of Oncology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
| | - Yoshihiro Inamoto
- Fred Hutchinson Cancer Research Center; Department of Medicine, University of Washington, Seattle, Washington; Division of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan
| | - Tania Jain
- Sidney Kimmel Cancer Center, John Hopkins Hospital, Baltimore, Maryland
| | - Navneet Majhail
- Blood and Marrow Transplant Program, Department of Hematology and Medical Oncology, Cleveland Clinic Taussig Cancer Institute, Cleveland, Ohio
| | - Miguel-Angel Perales
- Memorial Sloan Kettering Cancer Center, New York, New York; Department of Medicine, Weill Cornell Medical College, New York, New York
| | - Mohamad Mohty
- Saint Antoine Hospital, INSERM UMR 938, Université Pierre et Marie Curie, TC, Paris, France; EBMT Paris Study Office, Paris, France
| | - Mehdi Hamadani
- Division of Hematology and Oncology, Medical College of Wisconsin, Milwaukee, Wisconsin
| | - Paul A Carpenter
- Fred Hutchinson Cancer Research Center; Department of Medicine, University of Washington, Seattle, Washington
| | - Arnon Nagler
- EBMT Paris Study Office, Paris, France; Chaim Sheba Medical Center, Tel Hashomer, Israel
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Deeg HJ. Individuals, Boundaries, and Graft-versus-Host Disease. Biol Blood Marrow Transplant 2020; 26:e309-e312. [PMID: 32927076 DOI: 10.1016/j.bbmt.2020.09.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/28/2020] [Accepted: 09/07/2020] [Indexed: 01/11/2023]
Abstract
Hematopoietic cell transplantation generates new individuals, transplant chimeras, composed of 2 genetic partners-the patient and donor-derived cells-no longer restricted by their original genomes. Interactions of donor-derived and recipient cells occur prominently at the boundary of the recipient with a third partner, the microbiome, in particular skin and intestinal tract, leading to disruption of microbiome homeostasis. These interactions of donor and patient cells at the boundary set the stage for the development of graft-versus-host disease, an expression of the defense of individuality by recipient and donor. Establishment of tolerance and return of homeostasis at the boundary will allow for the survival of the new integrated, physiologic individual.
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Affiliation(s)
- H Joachim Deeg
- Fred Hutchinson Cancer Research Center and the University of Washington, Seattle, Washington.
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Lejman M, Zaucha-Prażmo A, Zawitkowska J, Mroczkowska A, Grabowski D, Kowalczyk JR, Drabko K. Impact of early chimerism status on clinical outcome in children with acute lymphoblastic leukaemia after haematopoietic stem cell transplantation. BMC Cancer 2019; 19:1141. [PMID: 31771553 PMCID: PMC6878687 DOI: 10.1186/s12885-019-6360-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Accepted: 11/12/2019] [Indexed: 12/26/2022] Open
Abstract
Background The significance of very early chimerism assessment before day + 28, which is considered the moment of engraftment, is still unclear. In this retrospective study, we evaluated the clinical impact of very early chimerism on the clinical outcome after allogeneic haematopoietic stem cell transplantation (allo-HSCT) in children with acute lymphoblastic leukaemia (ALL). Methods The study group included 38 boys and 18 girls. Very early chimerism was evaluated on days + 7, + 14, + 21 and + 28 after the transplant. Short tandem repeat polymerase chain reaction (STR PCR) was used to analyse chimerism. Results Overall survival (OS) and event-free survival (EFS) were 84 and 80%, respectively. The OS in the group of 24 patients with complete donor chimerism on day + 14 was 83%, and it did not differ statistically compared to the 32 patients with mixed chimerism on day + 14 (OS was 84%). In our cohort of patients, the matched unrelated donor, male gender of donor, number of transplanted cells above 4.47 × 106 kg and no serotherapy with anti-thymocyte globulin (ATG) were statistically related to a higher level of donor chimerism. The immunophenotypes of disease, age of patient at time HSCT, recipient sex, stem cell source (peripheral blood/bone marrow) and conditioning regimen had no impact on early chimerism. Acute graft versus host disease grades II-IV was diagnosed in 23 patients who presented with donor chimerism levels above 60% on day 7. Conclusions The data presented in this study provide valuable insight into the analysis of very early chimerism in children with ALL treated with HSCT.
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Affiliation(s)
- Monika Lejman
- Laboratory of Genetic Diagnostics, Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, A. Gebali 6, 20-093, Lublin, Poland.
| | - Agnieszka Zaucha-Prażmo
- Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, A. Gebali 6, 20-093, Lublin, Poland
| | - Joanna Zawitkowska
- Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, A. Gebali 6, 20-093, Lublin, Poland
| | - Aleksandra Mroczkowska
- Laboratory of Genetic Diagnostics, Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, A. Gebali 6, 20-093, Lublin, Poland
| | - Dominik Grabowski
- Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, A. Gebali 6, 20-093, Lublin, Poland
| | - Jerzy R Kowalczyk
- Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, A. Gebali 6, 20-093, Lublin, Poland
| | - Katarzyna Drabko
- Department of Pediatric Hematology, Oncology, and Transplantology, Medical University of Lublin, A. Gebali 6, 20-093, Lublin, Poland
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