1
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Tameni A, Toffalori C, Vago L. Tricking the trickster: precision medicine approaches to counteract leukemia immune escape after transplant. Blood 2024; 143:2710-2721. [PMID: 38728431 DOI: 10.1182/blood.2023019962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 04/08/2024] [Accepted: 04/30/2024] [Indexed: 05/12/2024] Open
Abstract
ABSTRACT Over the last decades, significant improvements in reducing the toxicities of allogeneic hematopoietic cell transplantation (allo-HCT) have widened its use as consolidation or salvage therapy for high-risk hematological malignancies. Nevertheless, relapse of the original malignant disease remains an open issue with unsatisfactory salvage options and limited rationales to select among them. In the last years, several studies have highlighted that relapse is often associated with specific genomic and nongenomic mechanisms of immune escape. In this review we summarize the current knowledge about these modalities of immune evasion, focusing on the mechanisms that leverage antigen presentation and pathologic rewiring of the bone marrow microenvironment. We present examples of how this biologic information can be translated into specific approaches to treat relapse, discuss the status of the clinical trials for patients who relapsed after a transplant, and show how dissecting the complex immunobiology of allo-HCT represents a crucial step toward developing new personalized approaches to improve clinical outcomes.
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Affiliation(s)
- Annalisa Tameni
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Cristina Toffalori
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
| | - Luca Vago
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milan, Italy
- Vita-Salute San Raffaele University, Milan, Italy
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
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2
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Fontana D, Zambrotta GPM, Scannella A, Piazza R, Gambacorti-Passerini C. Late relapse of chronic myeloid leukemia after allogeneic bone marrow transplantation points to KANSARL (KANSL1::ARL17A) alteration: a case report with insights on the molecular landscape. Ann Hematol 2024; 103:1561-1568. [PMID: 38321229 PMCID: PMC11009776 DOI: 10.1007/s00277-024-05649-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2023] [Accepted: 01/31/2024] [Indexed: 02/08/2024]
Abstract
Chronic myeloid leukemia is a myeloproliferative neoplasm characterized by the presence of the Philadelphia chromosome and the consequent BCR::ABL1 oncoprotein. In the era before the introduction of tyrosine kinase inhibitors (TKIs), the only potentially curative treatment was allogeneic hematopoietic stem cell transplantation (HSCT). Here, we present the case of a patient affected by CML who experienced a relapse 20 years after allogeneic HSCT. Following relapse, the patient was treated with imatinib and bosutinib, resulting in a deep molecular response and successfully discontinued treatment. Additional analysis including whole-exome sequencing and RNA sequencing provided some insights on the molecular mechanisms of the relapse: the identification of the fusion transcript KANSL1::ARL17A (KANSARL), a cancer predisposition fusion gene, could justify a condition of genomic instability which may be associated with the onset and/or probably the late relapse of his CML.
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Affiliation(s)
- Diletta Fontana
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, Monza, MB, 20900, Italy.
| | - Giovanni Paolo Maria Zambrotta
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, Monza, MB, 20900, Italy
- Hematology Division and Bone Marrow Unit, IRCCS, San Gerardo dei Tintori, Monza, Italy
| | - Antonio Scannella
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, Monza, MB, 20900, Italy
| | - Rocco Piazza
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, Monza, MB, 20900, Italy
- Hematology Division and Bone Marrow Unit, IRCCS, San Gerardo dei Tintori, Monza, Italy
| | - Carlo Gambacorti-Passerini
- Department of Medicine and Surgery, University of Milano-Bicocca, via Cadore 48, Monza, MB, 20900, Italy
- Hematology Division and Bone Marrow Unit, IRCCS, San Gerardo dei Tintori, Monza, Italy
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3
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Maurer K, Antin JH. The graft versus leukemia effect: donor lymphocyte infusions and cellular therapy. Front Immunol 2024; 15:1328858. [PMID: 38558819 PMCID: PMC10978651 DOI: 10.3389/fimmu.2024.1328858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Accepted: 02/28/2024] [Indexed: 04/04/2024] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (HSCT) is a potentially curative therapy for many hematologic malignancies as well as non-malignant conditions. Part of the curative basis underlying HSCT for hematologic malignancies relies upon induction of the graft versus leukemia (GVL) effect in which donor immune cells recognize and eliminate residual malignant cells within the recipient, thereby maintaining remission. GVL is a clinically evident phenomenon; however, specific cell types responsible for inducing this effect and molecular mechanisms involved remain largely undefined. One of the best examples of GVL is observed after donor lymphocyte infusions (DLI), an established therapy for relapsed disease or incipient/anticipated relapse. DLI involves infusion of peripheral blood lymphocytes from the original HSCT donor into the recipient. Sustained remission can be observed in 20-80% of patients treated with DLI depending upon the underlying disease and the intrinsic burden of targeted cells. In this review, we will discuss current knowledge about mechanisms of GVL after DLI, experimental strategies for augmenting GVL by manipulation of DLI (e.g. neoantigen vaccination, specific cell type selection/depletion) and research outlook for improving DLI and cellular immunotherapies for hematologic malignancies through better molecular definition of the GVL effect.
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Affiliation(s)
| | - Joseph H. Antin
- Division of Hematologic Malignancies, Department of Medical Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Boston, MA, United States
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4
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Amokrane K, Cherel M, Rouzaire PO, Walencik A, Dubois V. [Relapse with HLA loss after hematopoietic stem cell transplantation with non-HLA identical donor: Guidelines from the Francophone society of bone marrow transplantation and cellular therapy (SFGM-TC)]. Bull Cancer 2024; 111:S14-S21. [PMID: 37061368 DOI: 10.1016/j.bulcan.2023.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/13/2023] [Accepted: 03/15/2023] [Indexed: 04/17/2023]
Abstract
Loss of heterozygosity or HLA loss is a genomic-type escape mechanism highlighted in certain types of relapses after allogeneic hematopoietic stem cell transplantation with a non-HLA identical donor, and especially after haplo-identical transplantation. The diagnosis must be made with certainty because the result conditions the therapy. In this article, the different mechanisms and techniques that can be used for the diagnosis of loss of heterozygosity, as well as the therapeutic options are reviewed, making it possible to establish clinico-biological recommendations for the diagnosis confirmation and management of the patients in relapse.
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Affiliation(s)
- Kahina Amokrane
- Gustave-Roussy, centre de lutte contre le cancer, 114, rue Édouard-Vaillant, 94805 Villejuif, France
| | | | - Paul-Olivier Rouzaire
- EA(UR)7453 CHELTER-université de Clermont Auvergne, service d'histocompatibilité et d'immunogénétique, CHU de Clermont-Ferrand, Clermont-Ferrand, France
| | - Alexandre Walencik
- EFS Centre-Pays de la Loire, laboratoire histocompatibilité, Nantes, France
| | - Valérie Dubois
- Laboratoire HLA, EFS Auvergne Rhône Alpes, Lyon, France.
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5
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O’Reilly RJ, Prockop S, Oved JH. Virus-specific T-cells from third party or transplant donors for treatment of EBV lymphoproliferative diseases arising post hematopoietic cell or solid organ transplantation. Front Immunol 2024; 14:1290059. [PMID: 38274824 PMCID: PMC10808771 DOI: 10.3389/fimmu.2023.1290059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 12/14/2023] [Indexed: 01/27/2024] Open
Abstract
EBV+ lymphomas constitute a significant cause of morbidity and mortality in recipients of allogeneic hematopoietic cell (HCT) and solid organ transplants (SOT). Phase I and II trials have shown that in HCT recipients, adoptive transfer of EBV-specific T-cells from the HCT donor can safely induce durable remissions of EBV+ lymphomas including 70->90% of patients who have failed to respond to treatment with Rituximab. More recently, EBV-specific T-cells generated from allogeneic 3rd party donors have also been shown to induce durable remission of EBV+ lymphomas in Rituximab refractory HCT and SOT recipients. In this review, we compare results of phase I and II trials of 3rd party and donor derived EBV-specific T-cells. We focus on the attributes and limitations of each product in terms of access, safety, responses achieved and durability. The limited data available regarding donor and host factors contributing to T cell persistence is also described. We examine factors contributing to treatment failures and approaches to prevent or salvage relapse. Lastly, we summarize strategies to further improve results for virus-specific immunotherapies for post-transplant EBV lymphomas.
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Affiliation(s)
- Richard J. O’Reilly
- Department of Pediatrics, Stem Cell Transplantation and Cellular Therapies Service, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Susan Prockop
- Pediatric Stem Cell Transplantation, Boston Children’s Hospital/Dana-Farber Cancer Institute, Boston, MA, United States
| | - Joseph H. Oved
- Department of Pediatrics, Stem Cell Transplantation and Cellular Therapies Service, Memorial Sloan Kettering Cancer Center, New York, NY, United States
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6
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Ritz J. Immunologic Targets in AML. Blood Cancer Discov 2023; 4:430-432. [PMID: 37847743 PMCID: PMC10618716 DOI: 10.1158/2643-3230.bcd-23-0161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2023] Open
Abstract
SUMMARY In this issue of Blood Cancer Discovery, Nelde and colleagues used a sensitive mass spectrometry-based immunopeptidomics approach to characterize the antigenic landscape of acute myeloid leukemia (AML) and were able to identify immunogenic peptides presented by both leukemia stem cells (LSC) and bulk primary AML blasts. These immunogenic peptides elicit primarily CD4 T-cell responses and the diversity of the HLA class II immunopeptidome and presence of CD4 memory T-cell responses were both associated with improved clinical outcome. See related article by Nelde et al., p. 468 (1) .
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Affiliation(s)
- Jerome Ritz
- Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
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7
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Biederstädt A, Rezvani K. How I treat high-risk acute myeloid leukemia using preemptive adoptive cellular immunotherapy. Blood 2023; 141:22-38. [PMID: 35512203 PMCID: PMC10023741 DOI: 10.1182/blood.2021012411] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 04/20/2022] [Accepted: 04/21/2022] [Indexed: 01/21/2023] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (alloHSCT) is a potentially curative treatment for patients with high-risk acute leukemias, but unfortunately disease recurrence remains the major cause of death in these patients. Infusion of donor lymphocytes (DLI) has the potential to restore graft-versus-leukemia immunologic surveillance; however, efficacy varies across different hematologic entities. Although relapsed chronic myeloid leukemia, transplanted in chronic phase, has proven remarkably susceptible to DLI, response rates are more modest for relapsed acute myeloid leukemia and acute lymphoblastic leukemia. To prevent impending relapse, a number of groups have explored administering DLI preemptively on detection of measurable residual disease (MRD) or mixed chimerism. Evidence for the effectiveness of this strategy, although encouraging, comes from only a few, mostly single-center retrospective, nonrandomized studies. This article seeks to (1) discuss the available evidence supporting this approach while highlighting some of the inherent challenges of MRD-triggered treatment decisions post-transplant, (2) portray other forms of postremission cellular therapies, including the role of next-generation target-specific immunotherapies, and (3) provide a practical framework to support clinicians in their decision-making process when considering preemptive cellular therapy for this difficult-to-treat patient population.
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Affiliation(s)
- Alexander Biederstädt
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX
- Department of Medicine III: Hematology and Oncology, School of Medicine, Technical University of Munich, Munich, Germany
| | - Katayoun Rezvani
- Department of Stem Cell Transplantation and Cellular Therapy, The University of Texas MD Anderson Cancer Center, Houston, TX
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8
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Assessment of T Cell Receptor Complex Expression Kinetics in Natural Killer Cells. Curr Issues Mol Biol 2022; 44:3859-3871. [PMID: 36135177 PMCID: PMC9497757 DOI: 10.3390/cimb44090265] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/15/2022] [Accepted: 08/23/2022] [Indexed: 11/17/2022] Open
Abstract
Among the polypeptides that comprise the T cell receptor (TCR), only CD3ζ is found in Natural Killer (NK) cells, where it transmits signals from activating receptors such as CD16 and NKp46. NK cells are potent immune cells that recognize target cells through germline-encoded activating and inhibitory receptors. Genetic engineering of NK cells enables tumor-specific antigen recognition and, thus, has a significant promise in adoptive cell therapy. Ectopic expression of engineered TCR components in T cells leads to mispairing with the endogenous components, making a knockout of the endogenous TCR necessary. To circumvent the mispairing of TCRs or the need for knockout technologies, TCR complex expression has been studied in NK cells. In the current study, we explored the cellular processing of the TCR complex in NK cells. We observed that in the absence of CD3 subunits, the TCR was not expressed on the surface of NK cells and vice versa. Moreover, a progressive increase in surface expression of TCR between day three and day seven was observed after transduction. Interestingly, the TCR complex expression in NK92 cells was enhanced with a proteasome inhibitor (bortezomib) but not a lysosomal inhibitor (chloroquine). Additionally, we observed that the TCR complex was functional in NK92 cells as measured by estimating CD107a as a degranulation marker, IFNγ cytokine production, and killing assays. NK92 cells strongly degranulated when CD3ε was engaged in the presence of TCR, but not when only CD3 was overexpressed. Therefore, our findings encourage further investigation to unravel the mechanisms that prevent the surface expression of the TCR complex.
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9
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Han X, Zhao J, Liu J, Guo D, Li H, Fan S. Loss of mismatched HLA in acute myeloid leukemia relapse after haploidentical peripheral blood stem cell transplantation combined with unrelated cord blood: A case report. Transpl Immunol 2022; 73:101602. [DOI: 10.1016/j.trim.2022.101602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 04/09/2022] [Accepted: 04/10/2022] [Indexed: 11/30/2022]
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10
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Morton LT, Wachsmann TLA, Meeuwsen MH, Wouters AK, Remst DFG, van Loenen MM, Falkenburg JHF, Heemskerk MHM. T cell receptor engineering of primary NK cells to therapeutically target tumors and tumor immune evasion. J Immunother Cancer 2022; 10:jitc-2021-003715. [PMID: 35288464 PMCID: PMC8921915 DOI: 10.1136/jitc-2021-003715] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/28/2022] [Indexed: 12/30/2022] Open
Abstract
BACKGROUND T cell receptor (TCR)-engineered cells can be powerful tools in the treatment of malignancies. However, tumor resistance by Human Leukocyte antigen (HLA) class I downregulation can negatively impact the success of any TCR-mediated cell therapy. Allogeneic natural killer (NK) cells have demonstrated efficacy and safety against malignancies without inducing graft-versus-host-disease, highlighting the feasibility for an 'off the shelf' cellular therapeutic. Furthermore, primary NK cells can target tumors using a broad array of intrinsic activation mechanisms. In this study, we combined the antitumor effector functions of NK cells with TCR engineering (NK-TCR), creating a novel therapeutic strategy to avoid TCR-associated immune resistance. METHODS BOB1, is a transcription factor highly expressed in all healthy and malignant B cell lineages, including multiple myeloma (MM). Expression of an HLA-B*07:02 restricted BOB1-specifc TCR in peripheral blood-derived NK cells was achieved following a two-step retroviral transduction protocol. NK-TCR was then compared with TCR-negative NK cells and CD8-T cells expressing the same TCR for effector function against HLA-B*07:02+ B-cell derived lymphoblastoid cell lines (B-LCL), B-cell acute lymphoblastic leukemia and MM cell lines in vitro and in vivo. RESULTS Firstly, TCR could be reproducibly expressed in NK cells isolated from the peripheral blood of multiple healthy donors generating pure NK-TCR cell products. Secondly, NK-TCR demonstrated antigen-specific effector functions against malignancies which were previously resistant to NK-mediated lysis and enhanced NK efficacy in vivo using a preclinical xenograft model of MM. Moreover, antigen-specific cytotoxicity and cytokine production of NK-TCR was comparable to CD8 T cells expressing the same TCR. Finally, in a model of HLA-class I loss, tumor cells with B2M KO were lysed by NK-TCR in an NK-mediated manner but were resistant to T-cell based killing. CONCLUSION NK-TCR cell therapy enhances NK cell efficacy against tumors through additional TCR-mediated lysis. Furthermore, the dual efficacy of NK-TCR permits the specific targeting of tumors and the associated TCR-associated immune resistance, making NK-TCR a unique cellular therapeutic.
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Affiliation(s)
- Laura T Morton
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Miranda H Meeuwsen
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | - Anne K Wouters
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | - Dennis F G Remst
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | - Marleen M van Loenen
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Mirjam H M Heemskerk
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
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11
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Salhotra A, Stein AS. Role of Radiation Based Conditioning Regimens in Patients With High-Risk AML Undergoing Allogenic Transplantation in Remission or Active Disease and Mechanisms of Post-Transplant Relapse. Front Oncol 2022; 12:802648. [PMID: 35242706 PMCID: PMC8886676 DOI: 10.3389/fonc.2022.802648] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 01/21/2022] [Indexed: 11/25/2022] Open
Abstract
In the two decades there has been a consistent improvement in the clinical outcomes of patients diagnosed with acute leukemia undergoing allogenic stem cell transplantation. These improvements have been made possible by advancements in supportive care practices, more precise risk stratification of leukemia patients by genetic testing at diagnosis, accurate disease assessment by measurable residual disease (MRD) in pretransplant marrow and attempts to clear residual disease clones prior to transplant. Availability of targeted therapies, immunotherapies, and approval of novel drug combinations with BCL-2 inhibitors has also improved remission rates for patients who are undergoing transplant. For patients who are unable to achieve a morphologic or MRD- remission prior to transplant, the risk of relapse post-transplant remains high. Total body irradiation (TBI) based intensification of transplant conditioning may be able to overcome risk of increased relapse rate in this clinical setting by improving clearance of leukemic clones. However, in the past increased nonrelapse mortality (NRM) associated with escalation of conditioning intensity has neutralized any potential benefit of decreasing relapse rate in HCT patient resulting in no significant improvement in overall survival. In this review we discuss incorporation of newer radiation techniques such as total marrow irradiation (TMI) to safely deliver targeted doses of radiation at higher doses to improve outcomes of patients with active leukemia. We also discuss the mechanisms associated with leukemia relapse and treatment options available in post allo-HCT relapse setting despite use of intensified conditioning regimens.
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Affiliation(s)
- Amandeep Salhotra
- Department of Hematology/Hematopoietic Cell Transplant (HCT), City of Hope National Cancer Center, Duarte, CA, United States
| | - Anthony Selwyn Stein
- Department of Hematology/Hematopoietic Cell Transplant (HCT), City of Hope National Cancer Center, Duarte, CA, United States
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12
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Arnold PY. Review: HLA loss and detection in the setting of relapse from HLA-mismatched hematopoietic cell transplant. Hum Immunol 2022; 83:712-720. [DOI: 10.1016/j.humimm.2022.03.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Revised: 02/09/2022] [Accepted: 03/02/2022] [Indexed: 01/25/2023]
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13
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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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14
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Wang A, Li W, Zhao F, Zheng Z, Yang T, Wang S, Yan J, Lan J, Fan S, Zhao M, Shen J, Li X, Yang T, Lu Q, Lu Y, Bai H, Zhang H, Cai D, Wang L, Yuan Z, Jiang E, Zhou F, Song X. Clinical Characteristics and Outcome Analysis for HLA Loss Patients Following Partially Mismatched Related Donor Transplantation Using HLA Chimerism for Loss of Heterozygosity Analysis by Next-Generation Sequencing. Cell Transplant 2022; 31:9636897221102902. [PMID: 35670196 PMCID: PMC9178980 DOI: 10.1177/09636897221102902] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Genomic loss of mismatched human leukocyte antigen (HLA loss) is one of the most vital immune escape mechanisms of leukemic cells after allogeneic hematopoietic stem cell transplantation (allo-HSCT). However, the methods currently used for HLA loss analysis have some shortcomings. Limited literature has been published, especially in lymphoid malignancies. This study aims to evaluate the incidences, risk factors of HLA loss, and clinical outcomes of HLA loss patients. In all, 160 patients undergoing partially mismatched related donor (MMRD) transplantation from 18 centers in China were selected for HLA loss analysis with the next-generation sequencing (NGS)-based method, which was validated by HLA-KMR. Variables of the prognostic risk factors for HLA loss or HLA loss–related relapse were identified with the logistic regression or the Fine and Gray regression model. An HLA loss detection system, HLA-CLN [HLA chimerism for loss of heterozygosity (LOH) analysis by NGS], was successfully developed. Forty (25.0%) patients with HLA loss were reported, including 27 with myeloid and 13 with lymphoid malignancies. Surprisingly, 6 of those 40 patients did not relapse. The 2-year cumulative incidences of HLA loss (22.7% vs 22.0%, P = 0.731) and HLA loss–related relapse (18.4% vs 20.0%, P = 0.616) were similar between patients with myeloid and lymphoid malignancies. The number of HLA mismatches (5/10 vs <5/10) was significantly associated with HLA loss in the whole cohort [odds ratio (OR): 3.15, P = 0.021] and patients with myeloid malignancies (OR: 3.94, P = 0.021). A higher refined-disease risk index (OR: 6.91, P = 0.033) and donor–recipient ABO incompatibility (OR: 4.58, P = 0.057) contributed to HLA loss in lymphoid malignancies. To sum up, HLA-CLN could overcome the limitations of HLA-KMR and achieve a better HLA coverage for more patients. The clinical characteristics and outcomes were similar in patients with HLA loss between myeloid and lymphoid malignancies. In addition, the results suggested that a patient with HLA loss might not always relapse.
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Affiliation(s)
- Andi Wang
- Department of Hematology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wenjun Li
- Department of Hematology, No. 960 Hospital of People's Liberation Army, Jinan, China
| | - Fei Zhao
- Department of Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | | | - Ting Yang
- Department of Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - Sanbin Wang
- Department of Hematology, 920th Hospital of Joint Logistics Support Force, Kunming, China
| | - Jinsong Yan
- Department of Hematology, Liaoning Medical Center for Hematopoietic Stem Cell Transplantation, Second Hospital of Dalian Medical University, Dalian, China
| | - Jianpin Lan
- Department of Hematology, Zhejiang Provincial People's Hospital, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Shengjin Fan
- Department of Hematology, The First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Mingfeng Zhao
- Department of Hematology, Tianjin First Central Hospital, Tianjin, China
| | - Jianpin Shen
- Department of Hematology, Zhejiang Provincial Hospital of Chinese Medicine, Hangzhou, China
| | - Xin Li
- Department of Hematology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Tonghua Yang
- Department of Hematology, First People's Hospital of Yunnan Province, Kunming University of Science and Technology Affiliated Kun Hua Hospital, Kunming, China
| | - Quanyi Lu
- Department of Hematology, Zhongshan Hospital of Xiamen University, Xiamen, China
| | - Ying Lu
- Department of Hematology, The Affiliated People's Hospital of Ningbo University, Ningbo, China
| | - Hai Bai
- Department of Hematology, The 940th Hospital of the Joint Logistic Support Force of PLA, Lanzhou, China
| | - Haiyan Zhang
- Department of Hematology, Linyi People's Hospital, Linyi, China
| | - Dali Cai
- Department of Hematology, The First Hospital of China Medical University, Shenyang, China
| | - Ling Wang
- Department of Hematology, Affiliated Qingdao Central Hospital, Qingdao University, Qingdao, China
| | - Zhiyang Yuan
- Tissuebank Biotechnology Co., Ltd, Shanghai, China
| | - Erlie Jiang
- Department of Hematology, Institute of Hematology and Blood Diseases Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin, China
| | - Fang Zhou
- Department of Hematology, No. 960 Hospital of People's Liberation Army, Jinan, China
| | - Xianmin Song
- Department of Hematology, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,Engineering Technology Research Center of Cell Therapy and Clinical Translation, Shanghai Science and Technology Committee, Shanghai, China
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15
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Keel S. The clinical and laboratory evaluation of patients with suspected hypocellular marrow failure. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2021; 2021:134-142. [PMID: 34889426 PMCID: PMC8791137 DOI: 10.1182/hematology.2021000244] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
The overlap in clinical presentation and bone marrow features of acquired and inherited causes of hypocellular marrow failure poses a significant diagnostic challenge in real case scenarios, particularly in nonsevere disease. The distinction between acquired aplastic anemia (aAA), hypocellular myelodysplastic syndrome (MDS), and inherited bone marrow failure syndromes presenting with marrow hypocellularity is critical to inform appropriate care. Here, we review the workup of hypocellular marrow failure in adolescents through adults. Given the limitations of relying on clinical stigmata or family history to identify patients with inherited etiologies, we outline a diagnostic approach incorporating comprehensive genetic testing in patients with hypocellular marrow failure that does not require immediate therapy and thus allows time to complete the evaluation. We also review the clinical utility of marrow array to detect acquired 6p copy number-neutral loss of heterozygosity to support a diagnosis of aAA, the complexities of telomere length testing in patients with aAA, short telomere syndromes, and other inherited bone marrow failure syndromes, as well as the limitations of somatic mutation testing for mutations in myeloid malignancy genes for discriminating between the various diagnostic possibilities.
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Affiliation(s)
- Siobán Keel
- University of Washington, Seattle, WA
- Correspondence Siobán Keel, University of Washington, Division of Hematology, Seattle, WA 98105; e-mail:
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16
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An HLA-A*11:01-Binding Neoantigen from Mutated NPM1 as Target for TCR Gene Therapy in AML. Cancers (Basel) 2021; 13:cancers13215390. [PMID: 34771556 PMCID: PMC8582585 DOI: 10.3390/cancers13215390] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 10/20/2021] [Accepted: 10/22/2021] [Indexed: 12/19/2022] Open
Abstract
Simple Summary Acute myeloid leukemia (AML) is an aggressive hematological malignancy with poor prognosis. For AML relapses after chemotherapy, new and effective therapies are needed. In 30–35% of AMLs, a frameshift mutation in the nucleophosmin 1 gene (dNPM1) creates potential neoantigens that are attractive targets for immunotherapy. We previously isolated a T-cell receptor (TCR) that targets an HLA-A*02:01-binding dNPM1 neoantigen on primary AML. Here, we investigated whether AVEEVSLRK is another dNPM1 neoantigen that can be targeted by TCR gene transfer. We isolated various T-cells, cloned the HLA-A*11:01-restricted TCR from one T-cell clone and, upon transfer to CD8 cells, demonstrated targeting of dNPM1 primary AMLs in vitro. However, the TCR failed to mediate an anti-tumor effect in immunodeficient mice engrafted with dNPM1 OCI-AML3 cells. Our results demonstrate that AVEEVSLRK is an HLA-A*11:01-binding neoantigen on dNPM1 AML. Whether the isolated TCR is of sufficient affinity to treat patients remains uncertain. Abstract Acute myeloid leukemia (AML) is a hematological malignancy caused by clonal expansion of myeloid progenitor cells. Most patients with AML respond to chemotherapy, but relapses often occur and infer a very poor prognosis. Thirty to thirty-five percent of AMLs carry a four base pair insertion in the nucleophosmin 1 gene (NPM1) with a C-terminal alternative reading frame of 11 amino acids. We previously identified various neopeptides from the alternative reading frame of mutant NPM1 (dNPM1) on primary AML and isolated an HLA-A*02:01-restricted T-cell receptor (TCR) that enables human T-cells to kill AML cells upon retroviral gene transfer. Here, we isolated T-cells recognizing the dNPM1 peptide AVEEVSLRK presented in HLA-A*11:01. The TCR cloned from a T-cell clone recognizing HLA-A*11:01+ primary AML cells conferred in vitro recognition and lysis of AML upon transfer to CD8 cells, but failed to induce an anti-tumor effect in immunodeficient NSG mice engrafted with dNPM1 OCI-AML3 cells. In conclusion, our data show that AVEEVSLRK is a dNPM1 neoantigen on HLA-A*11:01+ primary AMLs. CD8 cells transduced with an HLA-A*11:01-restricted TCR for dNPM1 were reactive against AML in vitro. The absence of reactivity in a preclinical mouse model requires further preclinical testing to predict the potential efficacy of this TCR in clinical development.
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17
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Wu HW, Zhao YM, Huang H. [Mechanism of relapse and its therapeutic strategies after allogeneic hematopoietic stem cell transplantation]. ZHONGHUA XUE YE XUE ZA ZHI = ZHONGHUA XUEYEXUE ZAZHI 2021; 42:869-877. [PMID: 34788930 PMCID: PMC8607022 DOI: 10.3760/cma.j.issn.0253-2727.2021.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- H W Wu
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University; Institute of Hematology, Zhejiang University, Hangzhou 310006, China
| | - Y M Zhao
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University; Institute of Hematology, Zhejiang University, Hangzhou 310006, China
| | - H Huang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University; Institute of Hematology, Zhejiang University, Hangzhou 310006, China
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18
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Loke J, Buka R, Craddock C. Allogeneic Stem Cell Transplantation for Acute Myeloid Leukemia: Who, When, and How? Front Immunol 2021; 12:659595. [PMID: 34012445 PMCID: PMC8126705 DOI: 10.3389/fimmu.2021.659595] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/23/2021] [Indexed: 12/28/2022] Open
Abstract
Although the majority of patients with acute myeloid leukemia (AML) treated with intensive chemotherapy achieve a complete remission (CR), many are destined to relapse if treated with intensive chemotherapy alone. Allogeneic stem cell transplant (allo-SCT) represents a pivotally important treatment strategy in fit adults with AML because of its augmented anti-leukemic activity consequent upon dose intensification and the genesis of a potent graft-versus-leukemia effect. Increased donor availability coupled with the advent of reduced intensity conditioning (RIC) regimens has dramatically increased transplant access and consequently allo-SCT is now a key component of the treatment algorithm in both patients with AML in first CR (CR1) and advanced disease. Although transplant related mortality has fallen steadily over recent decades there has been no real progress in reducing the risk of disease relapse which remains the major cause of transplant failure and represents a major area of unmet need. A number of therapeutic approaches with the potential to reduce disease relapse, including advances in induction chemotherapy, the development of novel conditioning regimens and the emergence of the concept of post-transplant maintenance, are currently under development. Furthermore, the use of genetics and measurable residual disease technology in disease assessment has improved the identification of patients who are likely to benefit from an allo-SCT which now represents an increasingly personalized therapy. Future progress in optimizing transplant outcome will be dependent on the successful delivery by the international transplant community of randomized prospective clinical trials which permit examination of current and future transplant therapies with the same degree of rigor as is routinely adopted for non-transplant therapies.
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Affiliation(s)
- Justin Loke
- Centre for Clinical Haematology, Queen Elizabeth Hospital, Birmingham, United Kingdom
- CRUK Clinical Trials Unit, University of Birmingham, Birmingham, United Kingdom
| | - Richard Buka
- Centre for Clinical Haematology, Queen Elizabeth Hospital, Birmingham, United Kingdom
- CRUK Clinical Trials Unit, University of Birmingham, Birmingham, United Kingdom
| | - Charles Craddock
- Centre for Clinical Haematology, Queen Elizabeth Hospital, Birmingham, United Kingdom
- CRUK Clinical Trials Unit, University of Birmingham, Birmingham, United Kingdom
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19
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Muñiz P, Kwon M, Carbonell D, Chicano M, Bailén R, Oarbeascoa G, Suárez-González J, Andrés-Zayas C, Menárguez J, Dorado N, Gómez-Centurión I, Anguita J, Díez-Martín JL, Martínez-Laperche C, Buño I. Clinical Utility of the Detection of the Loss of the Mismatched HLA in Relapsed Hematological Patients After Haploidentical Stem Cell Transplantation With High-Dose Cyclophosphamide. Front Immunol 2021; 12:642087. [PMID: 33841425 PMCID: PMC8027082 DOI: 10.3389/fimmu.2021.642087] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/24/2021] [Indexed: 11/13/2022] Open
Abstract
Haploidentical hematopoietic stem cell transplantation (Haplo-HSCT) with high-dose cyclophosphamide (PTCy) has resulted in a low incidence of graft-vs.-host disease (GVHD), graft failure, and non-relapse mortality. However, post-transplantation relapse remains a common cause of treatment failure in high-risk patients. Unraveling the mechanisms of relapse is therefore crucial for designing effective relapse treatment strategies. One of these mechanisms is the loss of the mismatched HLA on the recipient's leukemic cells. To study the incidence and clinical relevance of this phenomenon, we analyzed 181 patients treated with Haplo-HSCT with PTCy (2007–2019), of which 37 relapsed patients after transplantation. According to the kit employed for HLA-loss analysis, among 22 relapsed patients, we identified HLA loss at relapse in 6 of the 22 patients (27%) studied. Based on the results obtained, the genomic loss of HLA was more common in females than males (66 vs. 33%) and HLA-loss relapses occurred later than classical relapses (345 vs. 166 days). Moreover, the patients with HLA-loss had a greater presence of active disease at the time of transplantation and had undergone a larger number of treatment lines than the group with classical relapses (66 vs. 43% and 66 vs. 18%, respectively). Four of these relapses were studied retrospectively, while two were studied prospectively, the results of which could be considered for patient management. Additionally, two relapsed patients analyzed retrospectively had myeloid neoplasms. One patient had not undergone any treatment, and three had undergone donor lymphocyte infusions (DLIs) and chemotherapy. All presented severe GVHD and disease progression. In contrast, the two patients studied prospectively had a lymphoid neoplasm and were not treated with DLIs. One of them was treated with chemotherapy but died from disease progression, and the other patient underwent a second Haplo-HSCT from a different donor and is still alive. We can conclude that the detection of HLA-loss at the onset of relapse after Haplo-HSCT with PTCy could help in clinical practice to select appropriate rescue treatment, thereby avoiding the use of DLIs or a second transplantation from the same donor.
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Affiliation(s)
- Paula Muñiz
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Mi Kwon
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Diego Carbonell
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - María Chicano
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Rebeca Bailén
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Gillen Oarbeascoa
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Julia Suárez-González
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain.,Genomics Unit, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Cristina Andrés-Zayas
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain.,Genomics Unit, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Javier Menárguez
- Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain.,Pathology Department, Gregorio Marañón General University Hospital, Madrid, Spain
| | - Nieves Dorado
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Ignacio Gómez-Centurión
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Javier Anguita
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - José Luis Díez-Martín
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain.,Department of Medicine, School of Medicine, Complutense University of Madrid, Madrid, Spain
| | - Carolina Martínez-Laperche
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain
| | - Ismael Buño
- Department of Hematology, Gregorio Marañón General University Hospital, Madrid, Spain.,Gregorio Marañón Health Research Institute (IiSGM), Madrid, Spain.,Genomics Unit, Gregorio Marañón General University Hospital, Madrid, Spain.,Department of Cell Biology, School of Medicine, Complutense University of Madrid, Madrid, Spain
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20
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Keruakous AR, Holter-Chakrabarty J, Schmidt SA, Khawandanah MO, Selby G, Yuen C. Azacitidine maintenance therapy post-allogeneic stem cell transplantation in poor-risk acute myeloid leukemia. Hematol Oncol Stem Cell Ther 2021; 16:52-60. [PMID: 36634281 DOI: 10.1016/j.hemonc.2021.03.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 01/24/2021] [Accepted: 03/06/2021] [Indexed: 01/18/2023] Open
Abstract
OBJECTIVE/BACKGROUND Allogeneic hematopoietic stem cell transplant (HSCT) is the potential curative modality for poor-risk acute myeloid leukemia (AML), relapse remains the main reason for transplant failure. Early-phase studies showed azacitidine is safe for post-transplant maintenance therapy in AML. METHODS We performed a single institutional prospective cohort study to evaluate the benefit of azacitidine maintenance therapy following allogeneic HSCT in poor-risk AML. The main objective of this study is to generate a hypothesis aiming to optimize post-transplantation outcomes in poor-risk AML. Forty-nine adults with poor-risk AML who underwent allogeneic HSCT were evaluated in a nonrandomized prospective cohort fashion. Thirty-one participants received post-transplant azacitidine (32 mg/m2) on Days 1-5 for a 28-day treatment cycle beginning approximately 40 days after transplantation. The study was controlled using 18 matched individuals who were on a noninterventional surveillance protocol. RESULTS The relapse rate was significantly higher in the control cohort (66.67%) versus (25.81%) in the azacitidine maintenance cohort (p < .005). Time to relapse was significantly prolonged by azacitidine maintenance, not reached versus 4.1 months in the control arm (p < .0001). In addition, median overall survival was lower in the control cohort at 7.6 versus 27.4 months in the interventional cohort (p < .0001). At a median follow-up of 24 months, incidence of graft-versus-host disease (GVHD) did not differ between study groups (p = .325). In both cohorts, minimal residual disease was correlated with higher hazard of relapse (95% confidence interval, 2.31-13.74; p < .001). CONCLUSION We conclude that low dose azacitidine maintenance following allogeneic HSCT in poor-risk AML, decreased relapse rate, and increased both the time to relapse and overall survival without increased risk of GVHD.
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Affiliation(s)
- Amany R Keruakous
- University of Oklahoma Health Sciences Center, Stephenson Cancer Center, Oklahoma City, OK 73104, USA.
| | | | - Sarah A Schmidt
- University of Oklahoma Health Sciences Center, Stephenson Cancer Center, Oklahoma City, OK 73104, USA
| | - Mohamad O Khawandanah
- University of Oklahoma Health Sciences Center, Stephenson Cancer Center, Oklahoma City, OK 73104, USA
| | - George Selby
- University of Oklahoma Health Sciences Center, Stephenson Cancer Center, Oklahoma City, OK 73104, USA
| | - Carrie Yuen
- University of Oklahoma Health Sciences Center, Stephenson Cancer Center, Oklahoma City, OK 73104, USA.
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21
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Rimando JC, Christopher MJ, Rettig MP, DiPersio JF. Biology of Disease Relapse in Myeloid Disease: Implication for Strategies to Prevent and Treat Disease Relapse After Stem-Cell Transplantation. J Clin Oncol 2021; 39:386-396. [PMID: 33434062 PMCID: PMC8462627 DOI: 10.1200/jco.20.01587] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 10/05/2020] [Accepted: 10/13/2020] [Indexed: 12/15/2022] Open
Affiliation(s)
- Joseph C. Rimando
- Division of Oncology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO
| | - Matthew J. Christopher
- Division of Oncology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO
| | - Michael P. Rettig
- Division of Oncology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO
| | - John F. DiPersio
- Division of Oncology, Department of Medicine, Washington University School of Medicine, Saint Louis, MO
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22
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Elmariah H, Brunstein CG, Bejanyan N. Immune Reconstitution after Haploidentical Donor and Umbilical Cord Blood Allogeneic Hematopoietic Cell Transplantation. Life (Basel) 2021; 11:102. [PMID: 33572932 PMCID: PMC7911120 DOI: 10.3390/life11020102] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/19/2021] [Accepted: 01/25/2021] [Indexed: 02/07/2023] Open
Abstract
Allogeneic hematopoietic cell transplantation (HCT) is the only potentially curative therapy for a variety of hematologic diseases. However, this therapeutic platform is limited by an initial period when patients are profoundly immunocompromised. There is gradual immune recovery over time, that varies by transplant platform. Here, we review immune reconstitution after allogeneic HCT with a specific focus on two alternative donor platforms that have dramatically improved access to allogeneic HCT for patients who lack an HLA-matched related or unrelated donor: haploidentical and umbilical cord blood HCT. Despite challenges, interventions are available to mitigate the risks during the immunocompromised period including antimicrobial prophylaxis, modified immune suppression strategies, graft manipulation, and emerging adoptive cell therapies. Such interventions can improve the potential for long-term overall survival after allogeneic HCT.
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Affiliation(s)
- Hany Elmariah
- Department of Blood and Marrow Transplant and Cellular Immunotherapy, Moffitt Cancer Center, Tampa, FL 33612, USA;
| | - Claudio G. Brunstein
- Division of Hematology, Oncology, and Transplantation, University of Minnesota, Minneapolis, MN 55455, USA;
| | - Nelli Bejanyan
- Department of Blood and Marrow Transplant and Cellular Immunotherapy, Moffitt Cancer Center, Tampa, FL 33612, USA;
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23
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Zhou M, Sacirbegovic F, Zhao K, Rosenberger S, Shlomchik WD. T cell exhaustion and a failure in antigen presentation drive resistance to the graft-versus-leukemia effect. Nat Commun 2020; 11:4227. [PMID: 32839441 PMCID: PMC7445289 DOI: 10.1038/s41467-020-17991-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2020] [Accepted: 07/28/2020] [Indexed: 12/20/2022] Open
Abstract
In hematopoietic cell transplants, alloreactive T cells mediate the graft-versus-leukemia (GVL) effect. However, leukemia relapse accounts for nearly half of deaths. Understanding GVL failure requires a system in which GVL-inducing T cells can be tracked. We used such a model wherein GVL is exclusively mediated by T cells that recognize the minor histocompatibility antigen H60. Here we report that GVL fails due to insufficient H60 presentation and T cell exhaustion. Leukemia-derived H60 is inefficiently cross-presented whereas direct T cell recognition of leukemia cells intensifies exhaustion. The anti-H60 response is augmented by H60-vaccination, an agonist αCD40 antibody (FGK45), and leukemia apoptosis. T cell exhaustion is marked by inhibitory molecule upregulation and the development of TOX+ and CD39-TCF-1+ cells. PD-1 blockade diminishes exhaustion and improves GVL, while blockade of Tim-3, TIGIT or LAG3 is ineffective. Of all interventions, FGK45 administration at the time of transplant is the most effective at improving memory and naïve T cell anti-H60 responses and GVL. Our studies define important causes of GVL failure and suggest strategies to overcome them.
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Affiliation(s)
- Meng Zhou
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Faruk Sacirbegovic
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Kai Zhao
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Sarah Rosenberger
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Warren D Shlomchik
- Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- The Starzl Transplantation Institute, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
- The Hillman UPMC Cancer Center, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.
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24
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Ma Y, Zhang S, Fang H, Yu K, Jiang S. A phase I study of CAR-T bridging HSCT in patients with acute CD19 + relapse/refractory B-cell leukemia. Oncol Lett 2020; 20:20. [PMID: 32774493 DOI: 10.3892/ol.2020.11881] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 05/05/2020] [Indexed: 12/27/2022] Open
Abstract
Chimeric antigen receptor (CAR)-T cell therapy is a novel cellular immunotherapy for relapsed/refractory(R/R) B acute lymphoblastic leukemia (B-ALL). However, the survival duration of CAR-T cells in vivo is noteworthy, and in some cases recurrence occurs following CAR-T cell therapy. There is controversy over the benefits of bridging to allo-HSCT after CAR-T cell therapy. The present study explored the efficacy and safety of CD19 chimeric antigen receptor (CAR) T-bridged allogeneic hematopoietic stem cell transplantation (allo-HSCT) treatment in relapsed/refractory B-cell acute lymphocytic leukemia (R/R B-ALL). A total of 9 patients with B-ALL treated at The First Affiliated Hospital of Wenzhou Medical University between December 2016 and November 2017 were included. The results demonstrated that the total response rate on day 28 after receiving CD19-CAR T-cell therapy was 100% (9/9) and all patients exhibited complete remission. The 1-year overall survival (OS) rate for 5 patients who received CAR-T bridged HSCT was 100%, the 1-year DFS rate was 100%; the 1-year OS rate for the 4 patients who received CAR-T therapy was 75%, and the 1-year DFS rate was 75%. Patients who received CAR-T bridged to HSCT had no significant prolongation of myeloid and platelet engraftment median time compared with patients who received CAR-T alone, and the incidence of acute graft-versus-host disease or extensive chronic graft-versus-host disease did not increase. Overall, the present clinical trial demonstrated that CAR-T therapy bridging to HSCT is a feasible, safe and effective method to treat adult patients with R/R B-ALL.
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Affiliation(s)
- Yongyong Ma
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Shenghui Zhang
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Hongliang Fang
- R&D Department, Hrain Biotechnology Co. Ltd., Shanghai 200030, P.R. China
| | - Kang Yu
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
| | - Songfu Jiang
- Department of Hematology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang 325000, P.R. China
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25
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Recurrent genetic HLA loss in AML relapsed after matched unrelated allogeneic hematopoietic cell transplantation. Blood Adv 2020; 3:2199-2204. [PMID: 31324640 DOI: 10.1182/bloodadvances.2019000445] [Citation(s) in RCA: 50] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 06/11/2019] [Indexed: 12/11/2022] Open
Abstract
Immune evasion is a hallmark of cancer and a central mechanism underlying acquired resistance to immune therapy. In allogeneic hematopoietic cell transplantation (alloHCT), late relapses can arise after prolonged alloreactive T-cell control, but the molecular mechanisms of immune escape remain unclear. To identify mechanisms of immune evasion, we performed a genetic analysis of serial samples from 25 patients with myeloid malignancies who relapsed ≥1 year after alloHCT. Using targeted sequencing and microarray analysis to determine HLA allele-specific copy number, we identified copy-neutral loss of heterozygosity events and focal deletions spanning class 1 HLA genes in 2 of 12 recipients of matched unrelated-donor HCT and in 1 of 4 recipients of mismatched unrelated-donor HCT. Relapsed clones, although highly related to their antecedent pretransplantation malignancies, frequently acquired additional mutations in transcription factors and mitogenic signaling genes. Previously, the study of relapse after haploidentical HCT established the paradigm of immune evasion via loss of mismatched HLA. Here, in the context of matched unrelated-donor HCT, HLA loss provides genetic evidence that allogeneic immune recognition may be mediated by minor histocompatibility antigens and suggests opportunities for novel immunologic approaches for relapse prevention.
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26
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Allogeneic hematopoietic stem cell transplantation from a 2-HLA-haplotype-mismatched family donor for posttransplant relapse: a prospective phase I/II study. Bone Marrow Transplant 2020; 56:70-83. [PMID: 32564055 DOI: 10.1038/s41409-020-0980-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2019] [Revised: 05/20/2020] [Accepted: 06/12/2020] [Indexed: 11/08/2022]
Abstract
HLA haploidentical hematopoietic stem cell transplantation (HSCT), i.e., HSCT from a 1-HLA-haplotype-mismatched family donor, has been successfully performed even as a second transplantation for posttransplant relapse. Is the haploidentical the limit of HLA mismatches in HSCT? In order to explore the possibility of HLA-mismatched HSCT from family donors beyond haploidentical relatives, we conducted a prospective phase I/II study of 2-HLA-haplotype-mismatched HSCT (2-haplo-mismatch HSCT). We enrolled 30 patients with posttransplant relapse (acute myeloid leukemia: 18, acute lymphoblastic leukemia: 11, non-Hodgkin lymphoma: 1). 2-haplo-mismatch HSCT was performed as the second to sixth transplantations. The donors were siblings (n = 12), cousins (n = 16), and second cousins (n = 2). The conditioning regimen consisted of fludarabine, cytarabine, melphalan, low-dose anti-thymocyte globulin, and 3 Gy of total body irradiation. Graft-versus-host disease (GVHD) prophylaxis consisted of tacrolimus, methylprednisolone, and mycophenolate mofetil. All patients achieved neutrophil engraftment, except for a case of early death. The cumulative incidences of grades II-IV and III-IV acute GVHD were 36.7% and 16.7%, respectively. The overall survival at 1 year, relapse, and non-relapse mortality rates was 30.1%, 38.9%, and 44.3%, respectively. Considering the poor prognosis of posttransplant relapse, 2-haplo-mismatch HSCT can be an alternative option in a second or third transplantation.
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27
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van Ens D, Mousset CM, Hutten TJA, van der Waart AB, Campillo-Davo D, van der Heijden S, Vodegel D, Fredrix H, Woestenenk R, Parga-Vidal L, Jansen JH, Schaap NPM, Lion E, Dolstra H, Hobo W. PD-L1 siRNA-mediated silencing in acute myeloid leukemia enhances anti-leukemic T cell reactivity. Bone Marrow Transplant 2020; 55:2308-2318. [PMID: 32528120 DOI: 10.1038/s41409-020-0966-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 12/12/2022]
Abstract
Acute myeloid leukemia (AML) is an immune-susceptible malignancy, as demonstrated by its responsiveness to allogeneic stem cell transplantation (alloSCT). However, by employing inhibitory signaling pathways, including PD-1/PD-L1, leukemia cells suppress T cell-mediated immune attack. Notably, impressive clinical efficacy has been obtained with PD-1/PD-L1 blocking antibodies in cancer patients. Yet, these systemic treatments are often accompanied by severe toxicity, especially after alloSCT. Here, we investigated RNA interference technology as an alternative strategy to locally interfere with PD-1/PD-L1 signaling in AML. We demonstrated efficient siRNA-mediated PD-L1 silencing in HL-60 and patients' AML cells. Importantly, WT1-antigen T cell receptor+ PD-1+ 2D3 cells showed increased activation toward PD-L1 silenced WT1+ AML. Moreover, PD-L1 silenced AML cells significantly enhanced the activation, degranulation, and IFN-γ production of minor histocompatibility antigen-specific CD8+ T cells. Notably, PD-L1 silencing was equally effective as PD-1 antibody blockade. Together, our study demonstrates that PD-L1 silencing may be an effective strategy to augment AML immune-susceptibility. This provides rationale for further development of targeted approaches to locally interfere with immune escape mechanisms in AML, thereby minimizing severe toxicity. In combination with alloSCT and/or adoptive T cell transfer, this strategy could be very appealing to boost graft-versus-leukemia immunity and improve outcome in AML patients.
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Affiliation(s)
- Diede van Ens
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Charlotte M Mousset
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Tim J A Hutten
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Anniek B van der Waart
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Diana Campillo-Davo
- Laboratory of Experimental Hematology, Vaccine & Infectious Disease Institute, Faculty of Medicine & Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Sanne van der Heijden
- Laboratory of Experimental Hematology, Vaccine & Infectious Disease Institute, Faculty of Medicine & Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Denise Vodegel
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Hanny Fredrix
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Rob Woestenenk
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Loreto Parga-Vidal
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Joop H Jansen
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Nicolaas P M Schaap
- Department of Hematology, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Eva Lion
- Laboratory of Experimental Hematology, Vaccine & Infectious Disease Institute, Faculty of Medicine & Health Sciences, University of Antwerp, Antwerp, Belgium
| | - Harry Dolstra
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands
| | - Willemijn Hobo
- Department of Laboratory Medicine - Laboratory of Hematology, Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, the Netherlands.
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28
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Two Occurrences of Leukemia Relapse Due to Mismatched HLA Loss After Haploidentical Stem Cell Transplantation From Different Family Donors With KIR Ligand Mismatch. J Pediatr Hematol Oncol 2020; 42:e104-e106. [PMID: 30807398 DOI: 10.1097/mph.0000000000001443] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Mismatched HLA loss is a cause of leukemia relapse after HLA-haploidentical stem cell transplantation (haplo-SCT). We report a patient with a history of 2 occurrences of leukemia relapse due to mismatched HLA loss after haplo-SCT. He received haplo-SCT from his father but showed leukemia relapse with loss of the maternal HLA haplotype. He then underwent haplo-SCT from his mother, and developed relapse with loss of the paternal HLA haplotype. Both donors had killer cell immunoglobulin-like receptor-ligand mismatch but alloreactive natural killer cells could not prevent relapse. Second haplo-SCT should be conducted carefully for patients with relapse due to mismatched HLA loss.
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29
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Rovatti PE, Gambacorta V, Lorentino F, Ciceri F, Vago L. Mechanisms of Leukemia Immune Evasion and Their Role in Relapse After Haploidentical Hematopoietic Cell Transplantation. Front Immunol 2020; 11:147. [PMID: 32158444 PMCID: PMC7052328 DOI: 10.3389/fimmu.2020.00147] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 01/20/2020] [Indexed: 01/05/2023] Open
Abstract
Over the last decade, the development of multiple strategies to allow the safe transfer from the donor to the patient of high numbers of partially HLA-incompatible T cells has dramatically reduced the toxicities of haploidentical hematopoietic cell transplantation (haplo-HCT), but this was not accompanied by a similar positive impact on the incidence of post-transplantation relapse. In the present review, we will elaborate on how the unique interplay between HLA-mismatched immune system and malignancy that characterizes haplo-HCT may impact relapse biology, shaping the selection of disease variants that are resistant to the “graft-vs.-leukemia” effect. In particular, we will present current knowledge on genomic loss of HLA, a relapse modality first described in haplo-HCT and accounting for a significant proportion of relapses in this setting, and discuss other more recently identified mechanisms of post-transplantation immune evasion and relapse, including the transcriptional downregulation of HLA class II molecules and the enforcement of inhibitory checkpoints between T cells and leukemia. Ultimately, we will review the available treatment options for patients who relapse after haplo-HCT and discuss on how a deeper insight into relapse immunobiology might inform the rational and personalized selection of therapies to improve the largely unsatisfactory clinical outcome of relapsing patients.
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Affiliation(s)
- Pier Edoardo Rovatti
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milan, Italy.,Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Valentina Gambacorta
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milan, Italy.,Unit of Senescence in Stem Cell Aging, Differentiation and Cancer, San Raffaele Telethon Institute for Gene Therapy, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Francesca Lorentino
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Luca Vago
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, Milan, Italy.,Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
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30
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Abstract
Modern management of acute myeloid leukaemia (AML) relies on the integration of phenotypic and genetic data to assign classification, establish prognosis, enhance monitoring and guide treatment. The prism through which we can now disperse a patient's leukaemia, interpret and apply our understanding has fundamentally changed since the completion of the first whole-genome sequencing (WGS) of an AML patient in 2008 and where possible, many clinicians would now prefer to delay treatment decisions until the karyotype and genetic status of a new patient is known. The success of global sequencing initiatives such as The Cancer Genome Atlas (TCGA) have brought us significantly closer to cataloguing the full spectrum of coding mutations involved in human malignancy. Indeed, genetic capability has raced ahead of our capacity to apply much of this knowledge into clinical practice and we are in the peculiar position of having routine access to genetic information on an individual patient's leukaemia that cannot be reliably interpreted or utilised. This is a measure of how rapid the progress has been, and this rate of change is likely to continue into the foreseeable future as research intensifies on the non-coding genome and the epigenome, as we scrutinise disease at a single cell level, and as initiatives like Beat AML and the Harmony Alliance progress. In this review, we will examine how interrogation of the coding genome is revolutionising our understanding of AML and improving our ability to underscore differences between paediatric and adult onset, sporadic and inherited forms of disease. We will look at how this knowledge is informing improvements in outcome prediction and the development of novel treatments, bringing us a step closer to personalised therapy for myeloid malignancy.
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Affiliation(s)
- Sarah Charrot
- Centre for Haemato-oncology, Barts Cancer Institute, QMUL, London, UK
| | - Hannah Armes
- Centre for Haemato-oncology, Barts Cancer Institute, QMUL, London, UK
| | - Ana Rio-Machin
- Centre for Haemato-oncology, Barts Cancer Institute, QMUL, London, UK
| | - Jude Fitzgibbon
- Centre for Haemato-oncology, Barts Cancer Institute, QMUL, London, UK
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31
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Vago L. Clonal evolution and immune evasion in posttransplantation relapses. HEMATOLOGY. AMERICAN SOCIETY OF HEMATOLOGY. EDUCATION PROGRAM 2019; 2019:610-616. [PMID: 31808847 PMCID: PMC6913457 DOI: 10.1182/hematology.2019000005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Despite the considerable improvements witnessed over the last few decades in the feasibility and safety of allogeneic hematopoietic cell transplantation (allo-HCT) for hematological malignancies, disease relapse continues to represent a frequent occurrence, with largely unsatisfactory salvage options. Recent studies have shed new light on the biology of posttransplantation relapses, demonstrating that they can frequently be explained using an evolutionary perspective: The changes in disease clonal structure and immunogenicity that are often documented at relapse may in fact represent the end results of a process of selection, allowing the outgrowth of variants that are more capable of resisting the therapeutic control of allo-HCT. This review provides an overview of the mechanisms forming the basis of relapse, including clonal evolution, gain of tropism for privileged sites, genomic and nongenomic changes in the HLA asset, and enforcement of immune checkpoints. Finally, this review discusses how these mechanisms may combine in complex patterns and how understanding and untangling these interactions may provide key knowledge for the selection of personalized therapeutic approaches.
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Affiliation(s)
- Luca Vago
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, and
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milan, Italy
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32
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Eyrich M, Schulze H. HLA Matching in Pediatric Stem Cell Transplantation. Transfus Med Hemother 2019; 46:348-355. [PMID: 31832060 DOI: 10.1159/000502422] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 07/23/2019] [Indexed: 12/22/2022] Open
Abstract
For several malignant and nonmalignant disorders such as leukemias, lymphomas, or inborn errors of hematopoiesis, stem cell transplantation is the only curative option. Depending on the underlying cause of the disease, the conditioning regimens, source of the stem cells, and graft composition may vary. Possible stem cell donors are selected from databases considering existing major histocompatibility genes of the donor and the recipient. This is currently performed by matching human leukocyte antigen (HLA)-A, -B, and -C for class I, as well as HLA-DRB1 and -DQB1 for class II. Stem cell transplantation for nonmalignant disorders is a specialty of pediatrics. While algorithms for donor selection in these cases are generally similar, the objective of optimizing a possible graft-versus-leukemia effect is less important. In this article, we aim to provide an overview on the current methods for HLA typing and the algorithms for HLA matching. We also address ethical aspects regarding children and minors as stem cell donors.
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Affiliation(s)
- Matthias Eyrich
- University Children's Hospital, University Hospital Würzburg, Würzburg, Germany
| | - Harald Schulze
- Institute of Experimental Biomedicine, Chair I, University Hospital Würzburg, Würzburg, Germany
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33
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Balas A, Planelles D, Goterris R, Rodríguez-Cebriá M, Vicario JL. Somatic mutation in the two HLA-B genes of a patient with acute myelogenous leukemia. HLA 2019; 94:360-364. [PMID: 31338977 DOI: 10.1111/tan.13640] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2019] [Revised: 06/24/2019] [Accepted: 07/22/2019] [Indexed: 12/28/2022]
Abstract
In this report, we describe a case of somatic mutations in the two HLA-B genes in a patient with acute myelogenous leukemia. The HLA-B*15:01 allele showed an insertion of two nucleotides within exon 2 leading to a premature stop codon. HLA-B*40:01 showed one nucleotide substitution within exon 3, identical to that described for B*15:258N. The restriction of these mutations in leukemic cells was confirmed in patient's samples from buccal epithelial cells and hematopoietic cells obtained when the patient was in remission. The clinical significance of somatic HLA mutations in cancer seems to be associated with escape from immune surveillance and clonal evolution. The analysis of possible mutations in HLA genes of tumor cells would be valuable information for the outcome of the disease and stem cell donor selection.
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Affiliation(s)
- Antonio Balas
- Histocompatibilidad, Centro de Transfusión de la Comunidad de Madrid, Madrid, Spain
| | - Dolores Planelles
- Histocompatibilidad, Centro de Transfusión de la Comunidad Valenciana, Valencia, Spain
| | - Rosa Goterris
- Hematología, Hospital Clínico Universitario de Valencia, Valencia, Spain
| | | | - José L Vicario
- Histocompatibilidad, Centro de Transfusión de la Comunidad de Madrid, Madrid, Spain
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34
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Haas OA. Primary Immunodeficiency and Cancer Predisposition Revisited: Embedding Two Closely Related Concepts Into an Integrative Conceptual Framework. Front Immunol 2019; 9:3136. [PMID: 30809233 PMCID: PMC6379258 DOI: 10.3389/fimmu.2018.03136] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 12/19/2018] [Indexed: 12/13/2022] Open
Abstract
Common understanding suggests that the normal function of a "healthy" immune system safe-guards and protects against the development of malignancies, whereas a genetically impaired one might increase the likelihood of their manifestation. This view is primarily based on and apparently supported by an increased incidence of such diseases in patients with specific forms of immunodeficiencies that are caused by high penetrant gene defects. As I will review and discuss herein, such constellations merely represent the tip of an iceberg. The overall situation is by far more varied and complex, especially if one takes into account the growing difficulties to define what actually constitutes an immunodeficiency and what defines a cancer predisposition. The enormous advances in genome sequencing, in bioinformatic analyses and in the functional in vitro and in vivo assessment of novel findings together with the availability of large databases provide us with a wealth of information that steadily increases the number of sequence variants that concur with clinically more or less recognizable immunological problems and their consequences. Since many of the newly identified hard-core defects are exceedingly rare, their tumor predisposing effect is difficult to ascertain. The analyses of large data sets, on the other hand, continuously supply us with low penetrant variants that, at least in statistical terms, are clearly tumor predisposing, although their specific relevance for the respective carriers still needs to be carefully assessed on an individual basis. Finally, defects and variants that affect the same gene families and pathways in both a constitutional and somatic setting underscore the fact that immunodeficiencies and cancer predisposition can be viewed as two closely related errors of development. Depending on the particular genetic and/or environmental context as well as the respective stage of development, the same changes can have either a neutral, predisposing and, in some instances, even a protective effect. To understand the interaction between the immune system, be it "normal" or "deficient" and tumor predisposition and development on a systemic level, one therefore needs to focus on the structure and dynamic functional organization of the entire immune system rather than on its isolated individual components alone.
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Affiliation(s)
- Oskar A. Haas
- Department of Clinical Genetics, Children's Cancer Research Institute, Vienna, Austria
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35
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Abstract
In this chapter I describe Tumour Immune Escape mechanisms associated with MHC/HLA class I loss in human and experimental tumours. Different altered HLA class-I phenotypes can be observed that are produced by different molecular mechanisms. Experimental and histological evidences are summarized indicating that at the early stages of tumour development there is an enormous variety of tumour clones with different MHC class I expression patterns. This phase is followed by a strong T cell mediated immune-selection of MHC/HLA class-I negative tumour cells in the primary tumour lesion. This transition period results in a formation of a tumour composed only of HLA-class I negative cells. An updated description of this process observed in a large variety of human tumors is included. In the second section I focus on MHC/HLA class I alterations observed in mouse and human metastases, and describe the generation of different tumor cell clones with altered MHC class I phenotypes, which could be similar or different from the original tumor clone. The biological and immunological relevance of these observations is discussed. Finally, the interesting phenomenon of metastatic dormancy is analyzed in association with a particular MHC class I negative tumor phenotype.
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Affiliation(s)
- Federico Garrido
- Departamento de Analisis Clinicos e Inmunologia, Hospital Universitario Virgen de las Nieves, Facultad de Medicina, Universidad de Granada, Granada, Spain
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36
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Montes P, Kerick M, Bernal M, Hernández F, Jiménez P, Garrido P, Márquez A, Jurado M, Martin J, Garrido F, Ruiz-Cabello F. Genomic loss of HLA alleles may affect the clinical outcome in low-risk myelodysplastic syndrome patients. Oncotarget 2018; 9:36929-36944. [PMID: 30651926 PMCID: PMC6319343 DOI: 10.18632/oncotarget.26405] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Accepted: 10/24/2018] [Indexed: 12/31/2022] Open
Abstract
The Revised International Prognostic Score and some somatic mutations in myelodysplastic syndrome (MDS) are independently associated with transformation to acute myeloid leukemia (AML). Immunity has also been implicated in the pathogenesis of MDS, although the underlying mechanism remains unclear. We performed a SNP array on chromosome 6 in CD34+ purified blasts from 19 patients diagnosed with advanced MDS and 8 patients with other myeloid malignancies to evaluate the presence of loss of heterozygosity (LOH) in HLA and its impact on disease progression. Three patients had acquired copy-neutral LOH (CN-LOH) on 6p arms, which may disrupt antigen presentation and act as a mechanism for immune system evasion. Interestingly, these patients had previously been classified at low risk of AML progression, and the poor outcome cannot be explained by the acquisition of adverse mutations. LOH HLA was not detected in the remaining 24 patients, who all had adverse risk factors. In summary, the clinical outcome of patients with advanced MDS might be influenced by HLA allelic loss, wich allows subclonal expansions to evade cytotoxic-T and NK cell attack. CN-LOH HLA may therefore be a factor favoring MDS progression to AML independently of the somatic tumor mutation load.
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Affiliation(s)
- Paola Montes
- Servicio de Análisis Clínicos e Inmunología, UGC de Laboratorio Clínico, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Martin Kerick
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Granada, Spain
| | - Mónica Bernal
- Servicio de Análisis Clínicos e Inmunología, UGC de Laboratorio Clínico, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Francisca Hernández
- UGC de Hematología, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Pilar Jiménez
- Servicio de Análisis Clínicos e Inmunología, UGC de Laboratorio Clínico, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Pilar Garrido
- UGC de Hematología, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Ana Márquez
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Granada, Spain
| | - Manuel Jurado
- UGC de Hematología, Hospital Universitario Virgen de las Nieves, Granada, Spain
| | - Javier Martin
- Instituto de Parasitología y Biomedicina López Neyra, CSIC, Granada, Spain
| | - Federico Garrido
- Servicio de Análisis Clínicos e Inmunología, UGC de Laboratorio Clínico, Hospital Universitario Virgen de las Nieves, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.Granada, Granada, Spain.,Departamento Bioquímica, Biología Molecular e Inmunología III, Universidad de Granada, Granada, Spain
| | - Francisco Ruiz-Cabello
- Servicio de Análisis Clínicos e Inmunología, UGC de Laboratorio Clínico, Hospital Universitario Virgen de las Nieves, Granada, Spain.,Instituto de Investigación Biosanitaria ibs.Granada, Granada, Spain.,Departamento Bioquímica, Biología Molecular e Inmunología III, Universidad de Granada, Granada, Spain
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37
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Epidemiology and biology of relapse after stem cell transplantation. Bone Marrow Transplant 2018; 53:1379-1389. [PMID: 29670211 DOI: 10.1038/s41409-018-0171-z] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 02/07/2018] [Accepted: 03/12/2018] [Indexed: 12/25/2022]
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38
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Intrathecal Infusion of Haploidentical Nondonor Lymphocytes for Central Nervous System Leukemic Relapse After Haploidentical Hematopoietic Stem Cell Transplantation. J Pediatr Hematol Oncol 2018; 40:e129-e132. [PMID: 28816796 DOI: 10.1097/mph.0000000000000937] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Leukemic relapse in the central nervous system (CNS) after conventional treatment is associated with a poor prognosis. The effectiveness and safety of IV infusion of human leukocyte antigen (HLA)-mismatched lymphocytes for leukemia, and intrathecal (IT) infusion of HLA-mismatched lymphocytes for cerebrospinal fluid (CSF) dissemination of medulloblastoma have been reported. A 13-year-old girl (HLA-A31) was diagnosed as relapsing from Philadelphia chromosome-positive acute leukemia in the CNS after receiving chemotherapy, tyrosine kinase inhibitors, haploidentical hematopoietic stem cell transplantation (HSCT) from her father (HLA-A31), and craniospinal irradiation. We performed an IT infusion of haploidentical lymphocytes from her mother. Peripheral blood mononuclear cells obtained from her mother (HLA-A31) were administered by IT infusion weekly. Examination of CSF 1 week after first IT showed that lymphocyte counts had increased markedly and the breakpoint cluster region/abelson-bearing cells had disappeared. Furthermore, CD3 T cells in the CSF were negative for HLA-A31, and expressed high HLA-DR. These results indicate the infused non-HSCT-donor lymphocytes did not survive, and that the HSCT donor(father)-derived lymphocytes migrated to the CSF and were activated. The patient showed partial remission for 2 months following this therapy. Serious adverse reactions and graft versus host disease were not observed. To control leukemic CNS dissemination, haploidentical nondonor lymphocytes might contribute to a graft versus leukemia effect.
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39
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Debeljak M, Mocci E, Morrison MC, Pallavajjalla A, Beierl K, Amiel M, Noë M, Wood LD, Lin MT, Gocke CD, Klein AP, Fuchs EJ, Jones RJ, Eshleman JR. Haplotype Counting for Sensitive Chimerism Testing: Potential for Early Leukemia Relapse Detection. J Mol Diagn 2018; 19:427-436. [PMID: 28433078 DOI: 10.1016/j.jmoldx.2017.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 12/11/2016] [Accepted: 01/05/2017] [Indexed: 10/19/2022] Open
Abstract
Fields of forensics, transplantation, and paternity rely on human identity testing. Currently, this is accomplished through amplification of microsatellites followed by capillary electrophoresis. An alternative and theoretically better approach uses multiple single-nucleotide polymorphisms located within a small region of DNA, a method we initially developed using HLA-A and called haplotype counting. Herein, we validated seven additional polymorphic loci, sequenced a total of 45 individuals from three of the 1000 Genomes populations (15 from each), and determined the number of haplotypes, heterozygosity, and polymorphic information content for each locus. In addition, we developed a multiplex PCR that amplifies five of these loci simultaneously. Using this strategy with a small cohort of leukemic patients who underwent allogeneic bone marrow transplantation, we first attempted to define a threshold (0.26% recipient) by examining seven patients who tested all donor and did not relapse. Although this initial threshold will need to be confirmed in a larger cohort, we detected increased recipient DNA above this threshold 90 to 145 days earlier than microsatellite positivity, and 127 to 142 days before clinical relapse in four of eight patients (50%). Haplotype counting using these novel loci may be useful for ultrasensitive detection in fields such as bone marrow transplantation, solid organ transplant rejection, patient identification, and forensics.
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Affiliation(s)
- Marija Debeljak
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Evelina Mocci
- Department of Oncology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Max C Morrison
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Aparna Pallavajjalla
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Katie Beierl
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Marie Amiel
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Michaël Noë
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Laura D Wood
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Ming-Tseh Lin
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Christopher D Gocke
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland; Department of Oncology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Alison P Klein
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland; Department of Oncology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Ephraim J Fuchs
- Department of Oncology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - Richard J Jones
- Department of Oncology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland
| | - James R Eshleman
- Department of Pathology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland; Department of Oncology, Johns Hopkins University, Johns Hopkins Medical Institutions, Baltimore, Maryland.
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40
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Alloantigen expression on malignant cells and healthy host tissue influences graft-versus-tumor reactions after allogeneic hematopoietic stem cell transplantation. Bone Marrow Transplant 2018; 53:807-819. [PMID: 29362503 DOI: 10.1038/s41409-017-0071-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 11/27/2017] [Accepted: 11/28/2017] [Indexed: 11/08/2022]
Abstract
Durable remissions of hematological malignancies regularly observed following allogeneic hematopoietic stem cell transplantation (aHSCT) are due to the conditioning regimen, as well as an immunological phenomenon called graft-versus-leukemia (GVL) or graft-versus-tumor (GVT) effect. The development of GVL is closely linked to graft-versus-host disease (GVHD), the main side effect associated with aHSCT. Both, GVHD and GVL are mediated by donor T cells that are initially activated by antigen-presenting cells that present recipient-derived alloantigens in the context of either matched or mismatched MHC class I molecules. Using murine models of aHSCT we show that ubiquitously expressed minor histocompatibility alloantigens (mHAg) are no relevant target for GVT effects. Interestingly, certain ubiquitously expressed MHC alloantigens augmented GVT effects early after transplantation, while others did not. The magnitude of GVT effects correlated with tumor infiltration by CD8+ cytotoxic T cells and tumor cell apoptosis. Furthermore, the immune response underlying GVHD and GVT was oligoclonal, highlighting that immunodominance is an important factor during alloimmune responses. These results emphasize that alloantigen expression on non-hematopoietic tissues can influence GVT effects in a previously unrecognized fashion. These findings bear significance for harnessing optimal GVL effects in patients receiving aHSCT.
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Fuchs E. Haploidentical Hematopoietic Cell Transplantation. Hematology 2018. [DOI: 10.1016/b978-0-323-35762-3.00106-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Locafaro G, Andolfi G, Russo F, Cesana L, Spinelli A, Camisa B, Ciceri F, Lombardo A, Bondanza A, Roncarolo MG, Gregori S. IL-10-Engineered Human CD4 + Tr1 Cells Eliminate Myeloid Leukemia in an HLA Class I-Dependent Mechanism. Mol Ther 2017; 25:2254-2269. [PMID: 28807569 PMCID: PMC5628869 DOI: 10.1016/j.ymthe.2017.06.029] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 06/28/2017] [Accepted: 06/29/2017] [Indexed: 11/23/2022] Open
Abstract
T regulatory cells (Tregs) play a key role in modulating T cell responses. Clinical trials showed that Tregs modulate graft-versus-host disease (GvHD) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). However, their ability to mediate anti-leukemic activity (graft-versus-leukemia [GvL]) is largely unknown. Enforced interleukin-10 (IL-10) expression converts human CD4+ T cells into T regulatory type 1 (Tr1)-like (CD4IL-10) cells that suppress effector T cells in vitro and xenoGvHD in humanized mouse models. In the present study, we show that CD4IL-10 cells mediate anti-leukemic effects in vitro and in vivo in a human leukocyte antigen (HLA) class I-dependent but antigen-independent manner. The cytotoxicity mediated by CD4IL-10 cells is granzyme B (GzB) dependent, is specific for CD13+ target cells, and requires CD54 and CD112 expression on primary leukemic target blasts. CD4IL-10 cells adoptively transferred in humanized mouse models directly mediate anti-tumor and anti-leukemic effects. In addition, when co-transferred with peripheral blood mononuclear cells (PBMCs), CD4IL-10 cells contribute to the GvL activity but suppress xenoGvHD mediated by the PBMCs. These findings provide for the first time a strong rationale for CD4IL-10 cell immunotherapy to prevent GvHD and promote GvL in allo-HSCT for myeloid malignancies.
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Affiliation(s)
- Grazia Locafaro
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Grazia Andolfi
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Fabio Russo
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Luca Cesana
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Antonello Spinelli
- Experimental Imaging Centre, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Barbara Camisa
- Innovative Immunotherapies Unit, Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Angelo Lombardo
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan 20132, Italy; Vita Salute San Raffaele University, Milan 20132, Italy
| | - Attilio Bondanza
- Experimental Imaging Centre, IRCCS San Raffaele Scientific Institute, Milan 20132, Italy
| | - Maria Grazia Roncarolo
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan 20132, Italy; Division of Stem Cell Transplantation and Regenerative Medicine, Department of Pediatrics, ISCBRM, Stanford School of Medicine, Stanford, CA 94305, USA.
| | - Silvia Gregori
- San Raffaele Telethon Institute for Gene Therapy (SR-Tiget), IRCCS San Raffaele Scientific Institute, Milan 20132, Italy.
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Hirai M, Yagasaki H, Fujimura J, Inoue M, Shimozawa K, Okuma H, Chin M, Takahashi S. Successful preemptive donor lymphocyte infusions from a haploidentical donor in a boy with E2A-HLF-positive ALL. Leuk Lymphoma 2017; 59:746-748. [PMID: 28728518 DOI: 10.1080/10428194.2017.1347927] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Maiko Hirai
- a Department of Pediatrics , Nihon University School of Medicine , Tokyo , Japan
| | - Hiroshi Yagasaki
- a Department of Pediatrics , Nihon University School of Medicine , Tokyo , Japan
| | - Junya Fujimura
- b Department of Pediatrics and Adolescent Medicine , Juntendo University School of Medicine , Tokyo , Japan
| | - Masami Inoue
- c Department of Hematology/Oncology , Osaka Medical Center and Research Institute for Maternal and Child Health , Osaka , Japan
| | - Katsuyoshi Shimozawa
- a Department of Pediatrics , Nihon University School of Medicine , Tokyo , Japan
| | - Hirotsugu Okuma
- a Department of Pediatrics , Nihon University School of Medicine , Tokyo , Japan
| | - Motoaki Chin
- a Department of Pediatrics , Nihon University School of Medicine , Tokyo , Japan
| | - Shori Takahashi
- a Department of Pediatrics , Nihon University School of Medicine , Tokyo , Japan
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Identification of an HLA class I allele closely involved in the autoantigen presentation in acquired aplastic anemia. Blood 2017; 129:2908-2916. [DOI: 10.1182/blood-2016-11-752378] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 02/20/2017] [Indexed: 12/26/2022] Open
Abstract
Key Points
Somatic mutations of HLA-B*40:02 are very frequently detected in granulocyte of patients with acquired aplastic anemia. Antigen presentation via HLA-B4002 may play a critical role in the pathophysiology of acquired aplastic anemia.
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Related haploidentical donors are a better choice than matched unrelated donors: Counterpoint. Blood Adv 2017; 1:401-406. [PMID: 29296955 DOI: 10.1182/bloodadvances.2016002188] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 01/09/2017] [Indexed: 01/18/2023] Open
Abstract
Publisher's Note: This article has a companion Point by Fuchs. Publisher's Note: Join in the discussion of these articles at Blood Advances Community Conversations.
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Detectable clonal mosaicism in blood as a biomarker of cancer risk in Fanconi anemia. Blood Adv 2017; 1:319-329. [PMID: 29296947 DOI: 10.1182/bloodadvances.2016000943] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Accepted: 12/11/2016] [Indexed: 01/28/2023] Open
Abstract
Detectable clonal mosaicism for large chromosomal events has been associated with aging and an increased risk of hematological and some solid cancers. We hypothesized that genetic cancer predisposition disorders, such as Fanconi anemia (FA), could manifest a high rate of chromosomal mosaic events (CMEs) in peripheral blood, which could be used as early biomarkers of cancer risk. We studied the prevalence of CMEs by single-nucleotide polymorphism (SNP) array in 130 FA patients' blood DNA and their impact on cancer risk. We detected 51 CMEs (4.4-159 Mb in size) in 16 out of 130 patients (12.3%), of which 9 had multiple CMEs. The most frequent events were gains at 3q (n = 6) and 1q (n = 5), both previously associated with leukemia, as well as rearrangements with breakpoint clustering within the major histocompatibility complex locus (P = 7.3 × 10-9). Compared with 15 743 age-matched population controls, FA patients had a 126 to 140 times higher risk of detectable CMEs in blood (P < 2.2 × 10-16). Prevalent and incident hematologic and solid cancers were more common in CME carriers (odds ratio [OR] = 11.6, 95% confidence interval [CI] = 3.4-39.3, P = 2.8 × 10-5), leading to poorer prognosis. The age-adjusted hazard risk (HR) of having cancer was almost 5 times higher in FA individuals with CMEs than in those without CMEs. Regarding survival, the HR of dying was 4 times higher in FA individuals having CMEs (HR = 4.0, 95% CI = 2.0-7.9, P = 5.7 × 10-5). Therefore, our data suggest that molecular karyotyping with SNP arrays in easy-to-obtain blood samples could be used for better monitoring of bone marrow clonal events, cancer risk, and overall survival of FA patients.
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Sahin U, Demirer T. Future Perspectives for Haploidentical SCT. STEM CELL BIOLOGY AND REGENERATIVE MEDICINE 2017. [DOI: 10.1007/978-3-319-65319-8_13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Maruyama H, Katagiri T, Kashiwase K, Shiina T, Sato-Otsubo A, Zaimoku Y, Maruyama K, Hosokawa K, Ishiyama K, Yamazaki H, Inoko H, Ogawa S, Nakao S. Clinical significance and origin of leukocytes that lack HLA-A allele expression in patients with acquired aplastic anemia. Exp Hematol 2016; 44:931-939.e3. [DOI: 10.1016/j.exphem.2016.05.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Revised: 04/24/2016] [Accepted: 05/23/2016] [Indexed: 01/10/2023]
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Planelles D, Balas A, Gil C, Muñoz C, Rodríguez-Cebriá M, Vicario JL. Somatic mutation in the HLA-B gene of a patient with acute myelogenous leukaemia. HLA 2016; 88:35-7. [DOI: 10.1111/tan.12830] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Revised: 05/25/2016] [Accepted: 05/27/2016] [Indexed: 12/30/2022]
Affiliation(s)
- D. Planelles
- Histocompatibilidad; Centro de Transfusión de la Comunidad Valenciana; Valencia Spain
| | - A. Balas
- Histocompatibilidad; Centro de Transfusión de la Comunidad de Madrid; Madrid Spain
| | - C. Gil
- Hematología; Hospital General Universitario de Alicante; Alicante Spain
| | - C. Muñoz
- Inmunología; Hospital General Universitario de Alicante; Alicante Spain
| | - M. Rodríguez-Cebriá
- Histocompatibilidad; Centro de Transfusión de la Comunidad Valenciana; Valencia Spain
| | - J. L. Vicario
- Histocompatibilidad; Centro de Transfusión de la Comunidad de Madrid; Madrid Spain
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