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Arrieta-Bolaños E, van der Burg LLJ, Gedde-Dahl T, Robin M, Salmenniemi U, Kröger N, Yakoub-Agha I, Huynh A, Crawley C, Deconinck E, Bulabois CE, Forcade E, Tholouli E, van der Hem JGK, van Balen P, Hoogenboom JD, de Wreede LC, Malard F, Ruggeri A, Fleischhauer K. Directionality of HLA-DP permissive mismatches improves risk prediction in HCT for acute leukemia and MDS. Blood 2024; 144:1747-1751. [PMID: 39102621 DOI: 10.1182/blood.2024024351] [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: 02/20/2024] [Revised: 07/22/2024] [Accepted: 07/22/2024] [Indexed: 08/07/2024] Open
Abstract
ABSTRACT HLA-DP permissive mismatches can be assigned a direction according to their immunopeptidome divergence across core and noncore subsets. Noncore permissive graft-versus-host mismatches show significantly reduced risks of relapse without increased nonrelapse mortality compared with allele-matched pairs.
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Affiliation(s)
- Esteban Arrieta-Bolaños
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium, DKTK Partner Site Essen/Düsseldorf, Germany
| | - Lars L J van der Burg
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Marie Robin
- BMT Unit, Saint-Louis Hospital, Paris, France
| | | | | | | | - Anne Huynh
- CHU-Institut Universitaire du Cancer de Toulouse, Toulouse, France
| | | | | | | | | | | | | | - Peter van Balen
- Department of Hematology, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Liesbeth C de Wreede
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, The Netherlands
- DKMS Clinical Trials Unit, Dresden, Germany
| | - Florent Malard
- Hôpital Saint Antoine, Paris, France
- Hematology and Bone Marrow Transplantation Unit, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Annalisa Ruggeri
- Hematology and Bone Marrow Transplantation Unit, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Katharina Fleischhauer
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium, DKTK Partner Site Essen/Düsseldorf, Germany
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2
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Arrieta-Bolaños E, Bonneville EF, Crivello P, Robin M, Gedde-Dahl T, Salmenniemi U, Kröger N, Yakoub-Agha I, Crawley C, Choi G, Broers AEC, Forcade E, Carre M, Poiré X, Huynh A, Lenhoff S, Ciceri F, Tholouli E, Schroeder T, Deconinck E, Carlson K, de Wreede LC, Hoogenboom JD, Malard F, Ruggeri A, Fleischhauer K. Human Leukocyte Antigen Mismatching and Survival in Contemporary Hematopoietic Cell Transplantation for Hematologic Malignancies. J Clin Oncol 2024; 42:3287-3299. [PMID: 39167735 DOI: 10.1200/jco.24.00582] [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: 03/18/2024] [Revised: 05/16/2024] [Accepted: 06/14/2024] [Indexed: 08/23/2024] Open
Abstract
PURPOSEHuman leukocyte antigen (HLA) mismatching can reduce survival of patients with blood cancer after hematopoietic cell transplantation (HCT). How recent advances in HCT practice, in particular graft-versus-host disease (GVHD) prophylaxis by post-transplantation cyclophosphamide (PTCy), influence HLA risk associations is unknown.PATIENTS AND METHODSThe study included 17,292 unrelated HCTs with 6-locus high-resolution HLA typing, performed mainly for acute leukemia or related myeloid neoplasms between 2016 and 2020, including 1,523 transplants with PTCy. HLA risk associations were evaluated by multivariable Cox regression models, with overall survival (OS) as primary end point.RESULTSOS was lower in HLA mismatched compared with fully matched transplants (hazard ratio [HR], 1.23 [99% CI, 1.14 to 1.33]; P < .001). This was driven by class I HLA-A, HLA-B, HLA-C (HR, 1.29 [99% CI, 1.19 to 1.41]; P < .001) but not class II HLA-DRB1 and HLA-DQB1 (HR, 1.07 [99% CI, 0.93 to 1.23]; P = .19). Class I antigen-level mismatches were associated with worse OS than allele-level mismatches (HR, 1.36 [99% CI, 1.24 to 1.49]; P < .001), as were class I graft-versus-host peptide-binding motif (PBM) mismatches compared with matches (HR, 1.42 [99% CI, 1.28 to 1.59]; P < .001). The use of PTCy improved GVHD, relapse-free survival compared with conventional prophylaxis in HLA-matched transplants (HR, 0.77 [0.66 to 0.9]; P < .001). HLA mismatching increased mortality in PTCy transplants (HR, 1.32 [1.04 to 1.68]; P = .003) similarly as in non-PTCy transplants (interaction P = .43).CONCLUSIONClass I but not class II HLA mismatches, especially at the antigen and PBM level, are associated with inferior survival in contemporary unrelated HCT. These effects are not significantly different between non-PTCy compared with PTCy transplants. Optimized HLA matching should still be considered in modern HCT.
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Affiliation(s)
- Esteban Arrieta-Bolaños
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Partner Site Essen/Düsseldorf, Essen, Germany
| | - Edouard F Bonneville
- Department of Biomedical Data Sciences, LUMC, Leiden, the Netherlands
- EBMT Leiden Study Unit, Leiden, the Netherlands
| | - Pietro Crivello
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
| | - Marie Robin
- Saint-Louis Hospital, BMT Unit, Paris, France
| | | | | | | | | | | | - Goda Choi
- University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | | | | | - Martin Carre
- CHU Grenoble Alpes - Université Grenoble Alpes, Grenoble, France
| | - Xavier Poiré
- Cliniques Universitaires St Luc, Brussels, Belgium
| | - Anne Huynh
- CHU - Institut Universitaire du Cancer Toulouse, Toulouse, France
| | | | - Fabio Ciceri
- IRCCS Ospedale San Raffaele, Milan, Italy
- University Vita-Salute San Raffaele, Milan, Italy
| | | | - Thomas Schroeder
- Department of Hematology and Stem Cell Transplantation, University Hospital Essen, Essen, Germany
| | | | | | | | | | - Florent Malard
- Sorbonne Université, Hôpital Saint-Antoine, AP-HP, Paris, France
| | | | - Katharina Fleischhauer
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), Partner Site Essen/Düsseldorf, Essen, Germany
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3
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Arrieta-Bolaños E. From clones to immunopeptidomes: New developments in the characterization of permissive HLA-DP mismatches in hematopoietic cell transplantation. Best Pract Res Clin Haematol 2024; 37:101575. [PMID: 39396259 DOI: 10.1016/j.beha.2024.101575] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2024] [Revised: 08/02/2024] [Accepted: 08/26/2024] [Indexed: 10/15/2024]
Abstract
Mismatching at the HLA-DPB1 locus occurs frequently in hematopoietic cell transplantation with unrelated donors. Despite this, HLA-DPB1 allelic mismatches have traditionally not been considered in patient-donor matching. A T-cell epitope (TCE) model for the functional assessment of permissive mismatches at this locus has nevertheless been adopted in clinical practice. While initially based on a hierarchical immunogenicity elucidated from allorecognition by T-cell clones isolated from a patient, newer developments in the understanding of this model's biological basis, including a central role for immunopeptidome divergence between mismatched allotypes, have prompted changes in the assignment of permissiveness, providing the opportunity for a more granular evaluation of graft-versus-host disease and relapse risks according to the nature and directionality of permissive mismatches. How these advances impact the assessment of permissiveness at HLA-DPB1 and potentially the intelligent selection of donors according to the main clinical goal for different patients is the subject of the present review.
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Ido K, Nakamae H, Hattori N, Kanaya M, Morita K, Hino M, Ohigashi H, Fukuda T, Eto T, Nagafuji K, Hiramoto N, Maruyama Y, Ota S, Matsuoka KI, Ando T, Akasaka T, Mori Y, Kamimura T, Kawakita T, Kawamura K, Kanda J, Onizuka M, Atsuta Y, Murata M. Effect of peptide-binding motif on survival of HLA-haploidentical transplantation with post-transplant cyclophosphamide. Br J Haematol 2024. [PMID: 38972374 DOI: 10.1111/bjh.19630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2024] [Accepted: 06/24/2024] [Indexed: 07/09/2024]
Abstract
Peptide-binding motif (PBM) model, a hierarchical clustering of HLA class I based on their binding specificity, was developed to predict immunopeptidome divergence. The effect of PBM mismatches on outcomes is unknown in HLA-haploidentical haematopoietic cell transplantation with post-transplant cyclophosphamide (PTCy-haplo). We therefore conducted a retrospective study using national registry data in PTCy-haplo. Overall, 1352 patients were included in the study. PBM-A bidirectional mismatch was associated with an increased risk of overall mortality in multivariable analysis (hazard ratio, 1.26; 95% confidence interval, 1.06 to 1.50; p = 0.010). None of relapse, non-relapse mortality (NRM) and graft-versus-host disease showed significant differences according to PBM-A bidirectional mismatch status in the entire cohort. The impact of PBM-A bidirectional mismatch on overall survival (OS) was preserved within the HLA-A genotype bidirectional mismatch population, and their lower OS stemmed from higher relapse rate in this population. The worse OS due to high NRM with PBM-A bidirectional mismatch was prominent in lymphoid malignancies receiving reduced-intensity conditioning. The PBM model may predict outcomes more accurately than HLA genotype mismatches. In conclusion, this study demonstrated that the presence of PBM-A bidirectional mismatch elevated the risk of mortality of PTCy-haplo. Avoiding PBM-A bidirectional mismatch might achieve better outcomes in PTCy-haplo.
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Affiliation(s)
- Kentaro Ido
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hirohisa Nakamae
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Norimichi Hattori
- Division of Hematology, Department of Medicine, Showa University School of Medicine, Tokyo, Japan
| | - Minoru Kanaya
- Blood Disorders Center, Aiiku Hospital, Sapporo, Japan
| | - Kaoru Morita
- Division of Hematology, Department of Medicine, Jichi Medical University, Shimotsuke, Japan
| | - Masayuki Hino
- Department of Hematology, Osaka Metropolitan University Graduate School of Medicine, Osaka, Japan
| | - Hiroyuki Ohigashi
- Department of Hematology, Hokkaido University Hospital, Sapporo, Japan
| | - Takahiro Fukuda
- Department of Hematopoietic Stem Cell Transplantation, National Cancer Center Hospital, Tokyo, Japan
| | - Tetsuya Eto
- Department of Hematology, Hamanomachi Hospital, Fukuoka, Japan
| | - Koji Nagafuji
- Division of Hematology and Oncology, Department of Medicine, Kurume University Hospital, Kurume, Japan
| | - Nobuhiro Hiramoto
- Department of Hematology, Kobe City Medical Center General Hospital, Kobe, Japan
| | - Yumiko Maruyama
- Department of Hematology, University of Tsukuba Hospital, Tsukuba, Japan
| | - Shuichi Ota
- Department of Hematology, Sapporo Hokuyu Hospital, Sapporo, Japan
| | - Ken-Ichi Matsuoka
- Department of Hematology and Oncology, Okayama University Hospital, Okayama, Japan
| | - Toshihiko Ando
- Division of Hematology, Respiratory Medicine and Oncology, Department of Internal Medicine, Faculty of Medicine, Saga University, Saga, Japan
| | | | - Yasuo Mori
- Hematology, Oncology & Cardiovascular Medicine, Kyushu University Hospital, Fukuoka, Japan
| | | | - Toshiro Kawakita
- Department of Hematology, NHO Kumamoto Medical Center, Kumamoto, Japan
| | - Koji Kawamura
- Division of Clinical Laboratory Medicine, Department of Multidisciplinary Internal Medicine, Tottori University, Tottori, Japan
| | - Junya Kanda
- Department of Hematology and Oncology, Graduate School of Medicine, Kyoto University, Kyoto, Japan
| | - Makoto Onizuka
- Department of Hematology/Oncology, Tokai University School of Medicine, Isehara, Japan
| | - Yoshiko Atsuta
- Japanese Data Center for Hematopoietic Cell Transplantation, Nagakute, Japan
- Department of Registry Science for Transplant and Cellular Therapy, Aichi Medical University School of Medicine, Nagakute, Japan
| | - Makoto Murata
- Department of Hematology, Shiga University of Medical Science, Otsu, Japan
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5
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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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6
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Mayor NP, Marsh SGE. HLA typing: A review of methodologies and clinical impact on haematopoietic cell transplantation. Best Pract Res Clin Haematol 2024; 37:101562. [PMID: 39098800 DOI: 10.1016/j.beha.2024.101562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 05/29/2024] [Accepted: 06/27/2024] [Indexed: 08/06/2024]
Abstract
The importance of the HLA gene system in haematopoietic cell transplant outcomes was established early on and advances in both fields have led to ever increasing success of this clinical therapy. In large part, improvements in the understanding of HLA have been driven by the advancement in typing technologies. Each iteration of typing technology has improved the resolution of HLA typing, and often enabled the identification of polymorphism within the HLA loci. The discovery of the enormous amount of variation in the HLA genes, and the need to be able to characterise this for clinical HLA typing, has often resulted in a move away from one typing method to another more suited to typing of this complexity. Today, the gold standard for HLA typing are methods that can produce definitive HLA typing results.
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Affiliation(s)
- Neema P Mayor
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK; UCL Cancer Institute, Royal Free Campus, London, UK.
| | - Steven G E Marsh
- Anthony Nolan Research Institute, Royal Free Hospital, London, UK; UCL Cancer Institute, Royal Free Campus, London, UK
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7
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Budeus B, Álvaro-Benito M, Crivello P. HLA-DM and HLA-DO interplay for the peptide editing of HLA class II in healthy tissues and leukemia. Best Pract Res Clin Haematol 2024; 37:101561. [PMID: 39098801 DOI: 10.1016/j.beha.2024.101561] [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: 03/29/2024] [Revised: 05/13/2024] [Accepted: 06/27/2024] [Indexed: 08/06/2024]
Abstract
HLA class II antigen presentation is modulated by the activity of the peptide editor HLA-DM and its antagonist HLA-DO, with their interplay controlling the peptide repertoires presented by normal and malignant cells. The role of these molecules in allogeneic hematopoietic cell transplantation (alloHCT) is poorly investigated. Balanced expression of HLA-DM and HLA-DO can influence the presentation of leukemia-associated antigens and peptides targeted by alloreactive T cells, therefore affecting both anti-leukemia immunity and the potential onset of Graft versus Host Disease. We leveraged on a large collection of bulk and single cell RNA sequencing data, available at different repositories, to comprehensively review the level and distribution of HLA-DM and HLA-DO in different cell types and tissues of the human body. The resulting expression atlas will help future investigations aiming to dissect the dual role of HLA class II peptide editing in alloHCT, and their potential impact on its clinical outcome.
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Affiliation(s)
- Bettina Budeus
- Institute of Cell Biology (Cancer Research), Medical Faculty, University of Duisburg-Essen, Essen, Germany.
| | - Miguel Álvaro-Benito
- School of Medicine, Universidad Complutense de Madrid, 12 de Octubre Health Research Institute, Madrid, Spain; Institute of Chemistry and Biochemistry, Freie Universität Berlin, Berlin, Germany.
| | - Pietro Crivello
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany.
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8
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Uhlemann H, Epp K, Klesse C, Link-Rachner CS, Surendranath V, Günther UP, Schetelig J, Heidenreich F. Shape of the art: TCR-repertoire after allogeneic hematopoietic cell transplantation. Best Pract Res Clin Haematol 2024; 37:101558. [PMID: 39098804 DOI: 10.1016/j.beha.2024.101558] [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: 12/30/2023] [Revised: 05/03/2024] [Accepted: 06/27/2024] [Indexed: 08/06/2024]
Abstract
The human adaptive immune repertoire is characterized by specificity and diversity to provide immunity against past and future tasks. Such tasks are mainly infections but also malignant transformations of cells. With its multiple lines of defense, the human immune system contains both, rapid reaction forces and the potential to capture, disassemble and analyze strange structures in order to teach the adaptive immune system and mount a specific immune response. Prevention and mitigation of autoimmunity is of equal importance. In the context of allogeneic hematopoietic cell transplantation (HCT) specific challenges exist with the transfer of cells from the adapted donor immune system to the immunosuppressed recipient. Those challenges are immunogenetic disparity between donor and host, reconstitution of immunity early after HCT by expansion of mature immune effector cells, and impaired thymic function, if the recipient is an adult (as it is the case in most HCTs). The possibility to characterize the adaptive immune repertoire by massively parallel sequencing of T-cell receptor gene rearrangements allows for a much more detailed characterization of the T-cell repertoire. In addition, high-dimensional characterization of immune effector cells based on their immunophenotype and single cell RNA sequencing allow for much deeper insights in adaptive immune responses. We here review, existing - still incomplete - information on immune reconstitution after allogeneic HCT. Building on the technological advances much deeper insights into immune recovery after HCT and adaptive immune responses and can be expected in the coming years.
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Affiliation(s)
- Heike Uhlemann
- University Hospital Carl Gustav Carus, Dresden, Germany; DKMS Group gGmbH, Clinical Trials Unit, Dresden, Germany.
| | - Katharina Epp
- University Hospital Carl Gustav Carus, Dresden, Germany
| | | | | | | | | | - Johannes Schetelig
- University Hospital Carl Gustav Carus, Dresden, Germany; DKMS Group gGmbH, Clinical Trials Unit, Dresden, Germany
| | - Falk Heidenreich
- University Hospital Carl Gustav Carus, Dresden, Germany; DKMS Group gGmbH, Clinical Trials Unit, Dresden, Germany
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9
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Branco A, Rayabaram J, Miranda CC, Fernandes-Platzgummer A, Fernandes TG, Sajja S, da Silva CL, Vemuri MC. Advances in ex vivo expansion of hematopoietic stem and progenitor cells for clinical applications. Front Bioeng Biotechnol 2024; 12:1380950. [PMID: 38846805 PMCID: PMC11153805 DOI: 10.3389/fbioe.2024.1380950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Accepted: 04/25/2024] [Indexed: 06/09/2024] Open
Abstract
As caretakers of the hematopoietic system, hematopoietic stem cells assure a lifelong supply of differentiated populations that are responsible for critical bodily functions, including oxygen transport, immunological protection and coagulation. Due to the far-reaching influence of the hematopoietic system, hematological disorders typically have a significant impact on the lives of individuals, even becoming fatal. Hematopoietic cell transplantation was the first effective therapeutic avenue to treat such hematological diseases. Since then, key use and manipulation of hematopoietic stem cells for treatments has been aspired to fully take advantage of such an important cell population. Limited knowledge on hematopoietic stem cell behavior has motivated in-depth research into their biology. Efforts were able to uncover their native environment and characteristics during development and adult stages. Several signaling pathways at a cellular level have been mapped, providing insight into their machinery. Important dynamics of hematopoietic stem cell maintenance were begun to be understood with improved comprehension of their metabolism and progressive aging. These advances have provided a solid platform for the development of innovative strategies for the manipulation of hematopoietic stem cells. Specifically, expansion of the hematopoietic stem cell pool has triggered immense interest, gaining momentum. A wide range of approaches have sprouted, leading to a variety of expansion systems, from simpler small molecule-based strategies to complex biomimetic scaffolds. The recent approval of Omisirge, the first expanded hematopoietic stem and progenitor cell product, whose expansion platform is one of the earliest, is predictive of further successes that might arise soon. In order to guarantee the quality of these ex vivo manipulated cells, robust assays that measure cell function or potency need to be developed. Whether targeting hematopoietic engraftment, immunological differentiation potential or malignancy clearance, hematopoietic stem cells and their derivatives need efficient scaling of their therapeutic potency. In this review, we comprehensively view hematopoietic stem cells as therapeutic assets, going from fundamental to translational.
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Affiliation(s)
- André Branco
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Janakiram Rayabaram
- Protein and Cell Analysis, Biosciences Division, Invitrogen Bioservices, Thermo Fisher Scientific, Bangalore, India
| | - Cláudia C. Miranda
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- AccelBio, Collaborative Laboratory to Foster Translation and Drug Discovery, Cantanhede, Portugal
| | - Ana Fernandes-Platzgummer
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Tiago G. Fernandes
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
| | - Suchitra Sajja
- Protein and Cell Analysis, Biosciences Division, Invitrogen Bioservices, Thermo Fisher Scientific, Bangalore, India
| | - Cláudia L. da Silva
- Department of Bioengineering and Institute for Bioengineering and Biosciences (iBB), Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Instituto Superior Técnico, Universidade de Lisboa, Lisbon, Portugal
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10
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Feng JL, Liang B, Zheng WJ, Xu L, Zhou QY, Chen J. Integrative analysis of single-cell and bulk RNA sequencing unveils a machine learning-based pan-cancer major histocompatibility complex-related signature for predicting immunotherapy efficacy. Cancer Immunol Immunother 2024; 73:121. [PMID: 38714579 PMCID: PMC11076435 DOI: 10.1007/s00262-024-03714-5] [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: 02/21/2024] [Accepted: 04/24/2024] [Indexed: 05/10/2024]
Abstract
Major histocompatibility complex (MHC) could serve as a potential biomarker for tumor immunotherapy, however, it is not yet known whether MHC could distinguish potential beneficiaries. Single-cell RNA sequencing datasets derived from patients with immunotherapy were collected to elucidate the association between MHC and immunotherapy response. A novel MHCsig was developed and validated using large-scale pan-cancer data, including The Cancer Genome Atlas and immunotherapy cohorts. The therapeutic value of MHCsig was further explored using 17 CRISPR/Cas9 datasets. MHC-related genes were associated with drug resistance and MHCsig was significantly and positively associated with immunotherapy response and total mutational burden. Remarkably, MHCsig significantly enriched 6% top-ranked genes, which were potential therapeutic targets. Moreover, we generated Hub-MHCsig, which was associated with survival and disease-special survival of pan-cancer, especially low-grade glioma. This result was also confirmed in cell lines and in our own clinical cohort. Later low-grade glioma-related Hub-MHCsig was established and the regulatory network was constructed. We provided conclusive clinical evidence regarding the association between MHCsig and immunotherapy response. We developed MHCsig, which could effectively predict the benefits of immunotherapy for multiple tumors. Further exploration of MHCsig revealed some potential therapeutic targets and regulatory networks.
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Affiliation(s)
- Jia-Lin Feng
- Department of Head and Neck Surgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bo Liang
- Department of Nephrology, The Key Laboratory for the Prevention and Treatment of Chronic Kidney Disease of Chongqing, Chongqing Clinical Research Center of Kidney and Urology Diseases, Xinqiao Hospital, Army Medical University (Third Military Medical University), Chongqing, China
| | - Wen-Jie Zheng
- Department of Head and Neck Surgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Le Xu
- Department of Head and Neck Surgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Qin-Yi Zhou
- Department of Head and Neck Surgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
| | - Jun Chen
- Department of Head and Neck Surgery, Ren Ji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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11
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Fleischhauer K. Hidden treasures of histocompatibility. Blood 2024; 143:1792-1794. [PMID: 38696195 DOI: 10.1182/blood.2024024345] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/22/2024] Open
Affiliation(s)
- Katharina Fleischhauer
- University Hospital Essen-Institute for Experimental Cellular Therapy and German Cancer Consortium
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12
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Petersdorf EW, McKallor C, Malkki M, He M, Spellman SR, Gooley T, Stevenson P. HLA Haplotypes and Relapse After Hematopoietic Cell Transplantation. J Clin Oncol 2024; 42:886-897. [PMID: 38051980 PMCID: PMC10927336 DOI: 10.1200/jco.23.01264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/25/2023] [Accepted: 10/06/2023] [Indexed: 12/07/2023] Open
Abstract
PURPOSE Recurrence of blood malignancy is the major cause of hematopoietic cell transplant failure. HLA class II molecules play a fundamental role in antitumor responses but the role of class II haplotypes is not known. METHODS HLA-DR, -DQ, -DM, and -DO allele variation was determined in 1,629 related haploidentical transplants to study the clinical significance of individual molecules and haplotypes. RESULTS Outcome correlated with patient and donor variation for HLA-DRβ residue 86 (Gly/Val), HLA-DQ (G1/G2) heterodimers, and donor HLA-DM (DM11,11/nonDM11,11) molecules, and depended on patient-donor mismatching. Risks of relapse were lower for DRβ-86 GlyGly patients when the donor was GlyVal (hazard ratio [HR], 0.46 [95% CI, 0.30 to 0.68]; P < .001); GlyVal patients benefited from HLA-DRB1-matched donors, whereas no donor was superior to another for ValVal patients. G1G2 patients with G1G2-mismatched donors had lower relapse. Transplantation from donors with DMα residue 184 ArgHis was associated with higher risk of relapse (HR, 1.60 [95% CI, 1.09 to 2.36]; P = .02) relative to ArgArg. Relapse and mortality risks differed across HLA-DR-DQ-DM haplotypes. CONCLUSION HLA class II haplotypes may be functional constituents of the transplantation barrier, and their consideration in patients and donors may improve the success of transplantation.
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Affiliation(s)
- Effie W. Petersdorf
- Division of Translational Science and Therapeutics, Fred Hutchinson Cancer Center, Seattle, WA
- University of Washington School of Medicine, Seattle, WA
| | - Caroline McKallor
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA
| | - Mari Malkki
- Division of Translational Science and Therapeutics, Fred Hutchinson Cancer Center, Seattle, WA
| | - Meilun He
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Stephen R. Spellman
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Theodore Gooley
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA
| | - Philip Stevenson
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA
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13
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Nilsson JB, Kaabinejadian S, Yari H, Kester MG, van Balen P, Hildebrand WH, Nielsen M. Accurate prediction of HLA class II antigen presentation across all loci using tailored data acquisition and refined machine learning. SCIENCE ADVANCES 2023; 9:eadj6367. [PMID: 38000035 PMCID: PMC10672173 DOI: 10.1126/sciadv.adj6367] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Accepted: 10/25/2023] [Indexed: 11/26/2023]
Abstract
Accurate prediction of antigen presentation by human leukocyte antigen (HLA) class II molecules is crucial for rational development of immunotherapies and vaccines targeting CD4+ T cell activation. So far, most prediction methods for HLA class II antigen presentation have focused on HLA-DR because of limited availability of immunopeptidomics data for HLA-DQ and HLA-DP while not taking into account alternative peptide binding modes. We present an update to the NetMHCIIpan prediction method, which closes the performance gap between all three HLA class II loci. We accomplish this by first integrating large immunopeptidomics datasets describing the HLA class II specificity space across all loci using a refined machine learning framework that accommodates inverted peptide binders. Next, we apply targeted immunopeptidomics assays to generate data that covers additional HLA-DP specificities. The final method, NetMHCIIpan-4.3, achieves high accuracy and molecular coverage across all HLA class II allotypes.
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Affiliation(s)
- Jonas B. Nilsson
- Department of Health Technology, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Saghar Kaabinejadian
- Pure MHC LLC, Oklahoma City, OK, USA
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Hooman Yari
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Michel G. D. Kester
- Department of Hematology, Leiden University Medical Center, Leiden, Netherlands
| | - Peter van Balen
- Department of Hematology, Leiden University Medical Center, Leiden, Netherlands
| | - William H. Hildebrand
- Department of Microbiology and Immunology, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - Morten Nielsen
- Department of Health Technology, Technical University of Denmark, DK-2800 Lyngby, Denmark
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14
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Sajulga R, Bolon YT, Maiers MJ, Petersdorf EW. Assessment of HLA-DPB1 genetic variation using an HLA-DP tool and its implications in clinical transplantation. Blood Adv 2023; 7:4809-4821. [PMID: 37126658 PMCID: PMC10469530 DOI: 10.1182/bloodadvances.2022009554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 04/06/2023] [Accepted: 04/23/2023] [Indexed: 05/03/2023] Open
Abstract
HLA-DP is a classic transplantation antigen that mediates alloreactivity through T-cell epitope (TCE) diversity and expression levels. A current challenge is to integrate these functional features into the prospective selection of unrelated donor candidates for transplantation. Genetically, HLA-DPB1 exon 2 defines the permissive and nonpermissive TCE groups, and exons 2 and 3 (in linkage with rs9277534) indicate low- and high-expression allotypes. In this study, we analyzed 356 272 exon 2-exon 3-phased sequences from individuals across 5 self-identified race and ethnicity categories: White, Hispanic, Asian or Pacific Islander, Black or African American, and American Indian or Alaskan Native. This sequence data set revealed the complex relationship between TCE and expression models and the importance of exon 3 sequence data. We also studied archived donor search lists for 2545 patients who underwent transplantation from an HLA-11/12 unrelated donor mismatched for a single HLA-DPB1 allele. Depending on the order in which the TCE and expression criteria were considered, some patients had different TCE- and expression-favorable donors. In addition, this data set revealed that many expression-favorable alternatives existed in the search lists. To improve the selection of candidate donors, we provide, disseminate, and automate our findings through our multifaceted tool called Expression of HLA-DP Assessment Tool, consisting of a public web application, Python package, and analysis pipeline.
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Affiliation(s)
- Ray Sajulga
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Yung-Tsi Bolon
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Martin J. Maiers
- Center for International Blood and Marrow Transplant Research, National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Effie W. Petersdorf
- Division of Clinical Research, Fred Hutchinson Cancer Center, Seattle, WA
- Department of Medicine, University of Washington, Seattle, WA
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15
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Crivello P, Arrieta-Bolaños E, He M, Wang T, Fingerson S, Gadalla SM, Paczesny S, Marsh SG, Lee SJ, Spellman SR, Bolon YT, Fleischhauer K. Impact of the HLA Immunopeptidome on Survival of Leukemia Patients After Unrelated Donor Transplantation. J Clin Oncol 2023; 41:2416-2427. [PMID: 36669145 PMCID: PMC10150892 DOI: 10.1200/jco.22.01229] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Revised: 09/10/2022] [Accepted: 11/15/2022] [Indexed: 01/21/2023] Open
Abstract
PURPOSE Immunopeptidome divergence between mismatched HLA-DP is a determinant of T-cell alloreactivity and clinical tolerability after fully HLA-A, -B, -C, -DRB1, -DQB1 matched unrelated donor hematopoietic cell transplantation (UD-HCT). Here, we tested this concept in HLA-A, -B, and -C disparities after single class I HLA-mismatched UD-HCT. PATIENTS AND METHODS We studied 2,391 single class I HLA-mismatched and 14,426 fully HLA-matched UD-HCT performed between 2008 and 2018 for acute leukemia or myelodysplastic syndromes. Hierarchical clustering of experimentally determined peptide-binding motifs (PBM) was used as a proxy for immunopeptidome divergence of HLA-A, -B, or -C disparities, allowing us to classify 1,629/2,391 (68.1%) of the HLA-mismatched UD-HCT as PBM-matched or PBM-mismatched. Risks associated with PBM-matching status were assessed by Cox proportional hazards models, with overall survival (OS) as the primary end point. RESULTS Relative to full matches, bidirectional or unidirectional PBM mismatches in graft-versus-host (GVH) direction (PBM-GVH mismatches, 60.7%) were associated with significantly lower OS (hazard ratio [HR], 1.48; P < .0001), while unidirectional PBM mismatches in host-versus-graft direction or PBM matches (PBM-GVH matches, 39.3%) were not (HR, 1.13; P = .1017). PBM-GVH mismatches also had significantly lower OS than PBM-GVH matches in direct comparison (HR, 1.32; P = .0036). The hazards for transplant-related mortality and acute and chronic graft-versus-host disease but not relapse increased stepwise from full HLA matches to single PBM-GVH matches, and single PBM-GVH mismatches. A webtool for PBM-matching of single class I HLA-mismatched donor-recipient pairs was developed. CONCLUSION PBM-GVH mismatches inform mortality risks after single class I HLA-mismatched UD-HCT, suggesting that prospective consideration of directional PBM-matching status might improve outcome. These findings highlight immunopeptidome divergence between mismatched HLA as a driver of clinical tolerability in UD-HCT.
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Affiliation(s)
- Pietro Crivello
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
| | - Esteban Arrieta-Bolaños
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium, partner site Essen/Düsseldorf (DKTK), Heidelberg, Germany
| | - Meilun He
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Tao Wang
- Division of Biostatistics, Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, WI
- Department of Medicine, Medical College of Wisconsin, CIBMTR (Center for International Blood and Marrow Transplant Research), Milwaukee, WI
| | - Stephanie Fingerson
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Shahinaz M. Gadalla
- Division of Cancer Epidemiology and Genetics, NIH-NCI Clinical Genetics Branch, Rockville, MD
| | - Sophie Paczesny
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC
| | - Steven G.E. Marsh
- Anthony Nolan Research Institute and University College London Cancer Institute, Royal Free Campus, London, United Kingdom
| | - Stephanie J. Lee
- Department of Medicine, Medical College of Wisconsin, CIBMTR (Center for International Blood and Marrow Transplant Research), Milwaukee, WI
- Division of Clinical Research, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Stephen R. Spellman
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Yung-Tsi Bolon
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Katharina Fleischhauer
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium, partner site Essen/Düsseldorf (DKTK), Heidelberg, Germany
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16
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Fleischhauer K. Improved Accessibility of Optimally Matched Stem Cell Donors. Transplant Cell Ther 2023; 29:213-214. [PMID: 36966010 DOI: 10.1016/j.jtct.2023.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2023]
Affiliation(s)
- Katharina Fleischhauer
- Institute for Experimental Cellular Therapy, University Hospital Essen, Germany; German Cancer Consortium (DKTK), partner site Essen/Düsseldorf.
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17
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Racle J, Guillaume P, Schmidt J, Michaux J, Larabi A, Lau K, Perez MAS, Croce G, Genolet R, Coukos G, Zoete V, Pojer F, Bassani-Sternberg M, Harari A, Gfeller D. Machine learning predictions of MHC-II specificities reveal alternative binding mode of class II epitopes. Immunity 2023:S1074-7613(23)00129-2. [PMID: 37023751 DOI: 10.1016/j.immuni.2023.03.009] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 11/09/2022] [Accepted: 03/15/2023] [Indexed: 04/08/2023]
Abstract
CD4+ T cells orchestrate the adaptive immune response against pathogens and cancer by recognizing epitopes presented on class II major histocompatibility complex (MHC-II) molecules. The high polymorphism of MHC-II genes represents an important hurdle toward accurate prediction and identification of CD4+ T cell epitopes. Here we collected and curated a dataset of 627,013 unique MHC-II ligands identified by mass spectrometry. This enabled us to precisely determine the binding motifs of 88 MHC-II alleles across humans, mice, cattle, and chickens. Analysis of these binding specificities combined with X-ray crystallography refined our understanding of the molecular determinants of MHC-II motifs and revealed a widespread reverse-binding mode in HLA-DP ligands. We then developed a machine-learning framework to accurately predict binding specificities and ligands of any MHC-II allele. This tool improves and expands predictions of CD4+ T cell epitopes and enables us to discover viral and bacterial epitopes following the aforementioned reverse-binding mode.
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Affiliation(s)
- Julien Racle
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland; Agora Cancer Research Centre, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland.
| | - Philippe Guillaume
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland; Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University Hospital of Lausanne, Lausanne, Switzerland
| | - Julien Schmidt
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland; Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University Hospital of Lausanne, Lausanne, Switzerland
| | - Justine Michaux
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Agora Cancer Research Centre, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland; Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University Hospital of Lausanne, Lausanne, Switzerland; Center of Experimental Therapeutics, Department of Oncology, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Amédé Larabi
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Kelvin Lau
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Marta A S Perez
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland
| | - Giancarlo Croce
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland; Agora Cancer Research Centre, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland
| | - Raphaël Genolet
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland; Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University Hospital of Lausanne, Lausanne, Switzerland
| | - George Coukos
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Agora Cancer Research Centre, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland; Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University Hospital of Lausanne, Lausanne, Switzerland
| | - Vincent Zoete
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland
| | - Florence Pojer
- School of Life Sciences, Ecole Polytechnique Fédérale de Lausanne, Lausanne, Switzerland
| | - Michal Bassani-Sternberg
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Agora Cancer Research Centre, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland; Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University Hospital of Lausanne, Lausanne, Switzerland; Center of Experimental Therapeutics, Department of Oncology, Centre Hospitalier Universitaire Vaudois (CHUV), Lausanne, Switzerland
| | - Alexandre Harari
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Agora Cancer Research Centre, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland; Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University Hospital of Lausanne, Lausanne, Switzerland
| | - David Gfeller
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research, University of Lausanne, Lausanne, Switzerland; Swiss Institute of Bioinformatics (SIB), Lausanne, Switzerland; Agora Cancer Research Centre, Lausanne, Switzerland; Swiss Cancer Center Leman (SCCL), Lausanne, Switzerland.
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18
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Hess NJ, Turicek DP, Riendeau J, McIlwain SJ, Contreras Guzman E, Nadiminti K, Hudson A, Callander NS, Skala MC, Gumperz JE, Hematti P, Capitini CM. Inflammatory CD4/CD8 double-positive human T cells arise from reactive CD8 T cells and are sufficient to mediate GVHD pathology. SCIENCE ADVANCES 2023; 9:eadf0567. [PMID: 36961891 PMCID: PMC10038349 DOI: 10.1126/sciadv.adf0567] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
An important paradigm in allogeneic hematopoietic cell transplantations (allo-HCTs) is the prevention of graft-versus-host disease (GVHD) while preserving the graft-versus-leukemia (GVL) activity of donor T cells. From an observational clinical study of adult allo-HCT recipients, we identified a CD4+/CD8+ double-positive T cell (DPT) population, not present in starting grafts, whose presence was predictive of ≥ grade 2 GVHD. Using an established xenogeneic transplant model, we reveal that the DPT population develops from antigen-stimulated CD8 T cells, which become transcriptionally, metabolically, and phenotypically distinct from single-positive CD4 and CD8 T cells. Isolated DPTs were sufficient to mediate xeno-GVHD pathology when retransplanted into naïve mice but provided no survival benefit when mice were challenged with a human B-ALL cell line. Overall, this study reveals human DPTs as a T cell population directly involved with GVHD pathology.
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Affiliation(s)
- Nicholas J. Hess
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | - David P. Turicek
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Jeremiah Riendeau
- Morgridge Institute for Research, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Sean J. McIlwain
- University of Wisconsin Carbone Cancer Center, Madison, WI, USA
- Department of Biostatistics and Medical Informatics, University of Wisconsin-Madison, Madison, WI, USA
| | - Emmanuel Contreras Guzman
- Morgridge Institute for Research, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Kalyan Nadiminti
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | - Amy Hudson
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Natalie S. Callander
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Melissa C. Skala
- Morgridge Institute for Research, Madison, WI, USA
- Department of Biomedical Engineering, University of Wisconsin-Madison, Madison, WI, USA
| | - Jenny E. Gumperz
- University of Wisconsin Carbone Cancer Center, Madison, WI, USA
- Department of Medical Microbiology and Immunology, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
| | - Peiman Hematti
- Department of Medicine, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- University of Wisconsin Carbone Cancer Center, Madison, WI, USA
| | - Christian M. Capitini
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, USA
- University of Wisconsin Carbone Cancer Center, Madison, WI, USA
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19
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Potential of TCR sequencing in graft-versus-host disease. Bone Marrow Transplant 2023; 58:239-246. [PMID: 36477111 PMCID: PMC10005964 DOI: 10.1038/s41409-022-01885-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 11/18/2022] [Accepted: 11/22/2022] [Indexed: 12/12/2022]
Abstract
Graft-versus-host disease (GvHD) remains one of the major complications following allogeneic haematopoietic stem cell transplantation (allo-HSCT). GvHD can occur in almost every tissue, with the skin, liver, and intestines being the mainly affected organs. T cells are implicated in initiating GvHD. T cells identify a broad range of antigens and mediate the immune response through receptors on their surfaces (T cell receptors, TCRs). The composition of TCRs within a T cell population defines the TCR repertoire of an individual, and this repertoire represents exposure to self and non-self proteins. Monitoring the changes in the TCR repertoire using TCR sequencing can provide an indication of the dynamics of a T cell population. Monitoring the frequency and specificities of specific TCR clonotypes longitudinally in different conditions and specimens (peripheral blood, GvHD-affected tissue samples) can provide insights into factors modulating immune reactions following allogeneic transplantation and will help to understand the underlying mechanisms mediating GvHD. This review provides insights into current studies of the TCR repertoire in GvHD and potential future clinical implications of TCR sequencing.
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20
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Merli P, Crivello P, Strocchio L, Pinto RM, Algeri M, Del Bufalo F, Pagliara D, Becilli M, Carta R, Gaspari S, Galaverna F, Quagliarella F, Boz G, Catanoso ML, Boccieri E, Troiano M, Fleischhauer K, Andreani M, Locatelli F. Human leukocyte antigen evolutionary divergence influences outcomes of paediatric patients and young adults affected by malignant disorders given allogeneic haematopoietic stem cell transplantation from unrelated donors. Br J Haematol 2023; 200:622-632. [PMID: 36385618 DOI: 10.1111/bjh.18561] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/29/2022] [Accepted: 10/31/2022] [Indexed: 11/18/2022]
Abstract
High genetic heterogeneity in the human leukocyte antigen (HLA) increases the likelihood of efficient immune response to pathogens and tumours. As measure of HLA diversity, HLA evolutionary divergence (HED) has been shown to predict the response of tumours to immunotherapy and haematopoietic stem cell transplantation (HSCT) in adults. We retrospectively investigated the association of HED with outcomes of 153 paediatric/young adults patients, treated for malignant disorders with HSCT from 9-10/10 HLA-matched unrelated donors. HED was calculated as pairwise genetic distance between alleles in patient HLA-A, -B, -C, -DRB1, -DQB1 and -DPB1, using the locus median to stratify patients with 'high' or 'low' HED. Patients with high HED-B and -DRB1 showed significantly improved disease-free survival (DFS), especially when combined (70.8% vs 53.7% p = 0.008). High HED-B + -DRB1 was also associated with improved overall survival (OS) (82.1 vs 66.4% p = 0.014), and concomitant reduction of non-relapse-mortality (5.1% vs 21.1% p = 0.006). The impact on OS and DFS of combined HED-B + -DRB1 was confirmed in multivariate analysis [hazard ratio (HR) 0.39, p = 0.009; and HR 0.45, p = 0.007 respectively]. Only high HED scores for HLA-DPB1 were associated, in univariate analysis, with reduced incidence of relapse (15.9% vs 31.1%, p = 0.03). These results support HED as prognostic marker in allogeneic HSCT and, if confirmed in larger cohorts, would allow its use to inform clinical risk and potentially influence clinical practice.
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Affiliation(s)
- Pietro Merli
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Pietro Crivello
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
| | - Luisa Strocchio
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Rita Maria Pinto
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Mattia Algeri
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Francesca Del Bufalo
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Daria Pagliara
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Marco Becilli
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Roberto Carta
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Stefania Gaspari
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Federica Galaverna
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Francesco Quagliarella
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Giulia Boz
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Maria Luigia Catanoso
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Emilia Boccieri
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Maria Troiano
- Laboratory of Transplant Immunogenetics, Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Katharina Fleischhauer
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany.,German Cancer Consortium, Partner Site Essen/Düsseldorf, Heidelberg, Germany
| | - Marco Andreani
- Laboratory of Transplant Immunogenetics, Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy
| | - Franco Locatelli
- Department of Hematology/Oncology, Cell and Gene Therapy, IRCCS Bambino Gesù Children's Hospital, Rome, Italy.,Catholic University of the Sacred Heart, Department of Life Sciences and Public Health, Rome, Italy
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21
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Margolis DJ, Duke JL, Mitra N, Berna RA, Hoffstad OJ, Wasserman JR, Dinou A, Damianos G, Kotsopoulou I, Tairis N, Ferriola DA, Mosbruger TL, Hayeck TJ, Yan AC, Monos DS. A combination of HLA-DP α and β chain polymorphisms paired with a SNP in the DPB1 3' UTR region, denoting expression levels, are associated with atopic dermatitis. Front Genet 2023; 14:1004138. [PMID: 36911412 PMCID: PMC9995861 DOI: 10.3389/fgene.2023.1004138] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Accepted: 01/13/2023] [Indexed: 02/25/2023] Open
Abstract
Introduction: Components of the immune response have previously been associated with the pathophysiology of atopic dermatitis (AD), specifically the Human Leukocyte Antigen (HLA) Class II region via genome-wide association studies, however the exact elements have not been identified. Methods: This study examines the genetic variation of HLA Class II genes using next generation sequencing (NGS) and evaluates the resultant amino acids, with particular attention on binding site residues, for associations with AD. The Genetics of AD cohort was used to evaluate HLA Class II allelic variation on 464 subjects with AD and 384 controls. Results: Statistically significant associations with HLA-DP α and β alleles and specific amino acids were found, some conferring susceptibility to AD and others with a protective effect. Evaluation of polymorphic residues in DP binding pockets revealed the critical role of P1 and P6 (P1: α31M + (β84G or β84V) [protection]; α31Q + β84D [susceptibility] and P6: α11A + β11G [protection]) and were replicated with a national cohort of children consisting of 424 AD subjects. Independently, AD susceptibility-associated residues were associated with the G polymorphism of SNP rs9277534 in the 3' UTR of the HLA-DPB1 gene, denoting higher expression of these HLA-DP alleles, while protection-associated residues were associated with the A polymorphism, denoting lower expression. Discussion: These findings lay the foundation for evaluating non-self-antigens suspected to be associated with AD as they potentially interact with particular HLA Class II subcomponents, forming a complex involved in the pathophysiology of AD. It is possible that a combination of structural HLA-DP components and levels of expression of these components contribute to AD pathophysiology.
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Affiliation(s)
- David J. Margolis
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jamie L. Duke
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Nandita Mitra
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Ronald A. Berna
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Ole J. Hoffstad
- Department of Biostatistics, Epidemiology and Informatics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jenna R. Wasserman
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Amalia Dinou
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Georgios Damianos
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Ioanna Kotsopoulou
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Nikolaos Tairis
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Deborah A. Ferriola
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Timothy L. Mosbruger
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Tristan J. Hayeck
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Department of Pathology and Laboratory Medicine, Perelman Schools of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Albert C. Yan
- Department of Dermatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Section of Dermatology, Division of General Pediatrics, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
| | - Dimitri S. Monos
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia, Philadelphia, PA, United States
- Department of Pathology and Laboratory Medicine, Perelman Schools of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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22
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Natural variation of ncHLAII molecules: challenges and perspectives. Cell Mol Immunol 2022; 19:1432-1434. [DOI: 10.1038/s41423-022-00910-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 07/28/2022] [Indexed: 11/09/2022] Open
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23
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Arrieta-Bolaños E, Crivello P, He M, Wang T, Gadalla SM, Paczesny S, Marsh SGE, Lee SJ, Spellman SR, Bolon YT, Fleischhauer K. A core group of structurally similar HLA-DPB1 alleles drives permissiveness after hematopoietic cell transplantation. Blood 2022; 140:659-663. [PMID: 35609150 PMCID: PMC9373015 DOI: 10.1182/blood.2022015708] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 05/12/2022] [Indexed: 11/20/2022] Open
Affiliation(s)
- Esteban Arrieta-Bolaños
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), partner site Essen/Düsseldorf, Essen, Germany
| | - Pietro Crivello
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
| | - Meilun He
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Tao Wang
- Division of Biostatistics, Institute for Health and Equity, Medical College of Wisconsin, Milwaukee, WI
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI
| | - Shahinaz M Gadalla
- Division of Cancer Epidemiology & Genetics, National Institutes of Health-National Cancer Institute Clinical Genetics Branch, Rockville, MD
| | - Sophie Paczesny
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC
| | - Steven G E Marsh
- Anthony Nolan Research Institute, London, United Kingdom
- UCL Cancer Institute, Royal Free Campus, London, United Kingdom
| | - Stephanie J Lee
- CIBMTR (Center for International Blood and Marrow Transplant Research), Medical College of Wisconsin, Milwaukee, WI; and
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, WA
| | - Stephen R Spellman
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Yung-Tsi Bolon
- CIBMTR (Center for International Blood and Marrow Transplant Research), National Marrow Donor Program/Be The Match, Minneapolis, MN
| | - Katharina Fleischhauer
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
- German Cancer Consortium (DKTK), partner site Essen/Düsseldorf, Essen, Germany
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24
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Yu N, Askar M, Wadsworth K, Gragert L, Fernández-Viña MA. Current HLA testing recommendations to support HCT. Hum Immunol 2022; 83:665-673. [DOI: 10.1016/j.humimm.2022.04.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 04/20/2022] [Accepted: 04/20/2022] [Indexed: 11/29/2022]
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25
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Gambacorta V, Beretta S, Ciccimarra M, Zito L, Giannetti K, Andrisani A, Gnani D, Zanotti L, Oliveira G, Carrabba MG, Cittaro D, Merelli I, Ciceri F, Di Micco R, Vago L. Integrated Multiomic Profiling Identifies the Epigenetic Regulator PRC2 as a Therapeutic Target to Counteract Leukemia Immune Escape and Relapse. Cancer Discov 2022; 12:1449-1461. [PMID: 35255120 PMCID: PMC9394393 DOI: 10.1158/2159-8290.cd-21-0980] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 02/07/2022] [Accepted: 02/28/2022] [Indexed: 01/07/2023]
Abstract
Immune escape represents a major driver of acute myeloid leukemia (AML) reemergence after allogeneic hematopoietic cell transplantation (allo-HCT), with up to 40% of relapses prompted by nongenomic loss of HLA class II expression in leukemia cells. By integrative analysis of gene expression, DNA methylation, and chromatin accessibility in paired diagnosis/relapse primary samples and in the respective patient-derived xenografts (PDX), we identify the polycomb repressive complex 2 (PRC2) as a key epigenetic driver of this immune escape modality. We report that loss of expression of HLA class II molecules is accompanied by a PRC2-dependent reduction in chromatin accessibility. Pharmacologic inhibition of PRC2 subunits rescues HLA class II expression in AML relapses in vitro and in vivo, with consequent recovery of leukemia recognition by CD4+ T cells. Our results uncover a novel link between epigenetics and leukemia immune escape, which may rapidly translate into innovative strategies to cure or prevent AML posttransplantation relapse. SIGNIFICANCE Loss of HLA class II expression represents a frequent mechanism of leukemia posttransplantation relapse. Here we identify PRC2 as the main epigenetic driver of this immune escape modality and show that its chemical inhibition can reinstate a proficient graft-versus-leukemia effect, providing an innovative rationale for personalized epigenetic immunotherapies. See related commentary by Köhler and Zeiser, p. 1410. This article is highlighted in the In This Issue feature, p. 1397.
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Affiliation(s)
- Valentina Gambacorta
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Milano, Italy.,Unit of Senescence in Stem Cell Aging, Differentiation and Cancer, San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milano, Italy.,University of Milano Bicocca, Milano, Italy
| | - Stefano Beretta
- Institute for Biomedical Technologies, National Research Council, Segrate, Italy.,San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Martina Ciccimarra
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Laura Zito
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Kety Giannetti
- Unit of Senescence in Stem Cell Aging, Differentiation and Cancer, San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Angela Andrisani
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Daniela Gnani
- Unit of Senescence in Stem Cell Aging, Differentiation and Cancer, San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Lucia Zanotti
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Giacomo Oliveira
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Matteo Giovanni Carrabba
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Davide Cittaro
- Center for Omics Sciences at the IRCCS Ospedale San Raffaele (COSR), IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Ivan Merelli
- Institute for Biomedical Technologies, National Research Council, Segrate, Italy.,San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Fabio Ciceri
- Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano, Italy.,San Raffaele Vita-Salute University, Milano, Italy
| | - Raffaella Di Micco
- Unit of Senescence in Stem Cell Aging, Differentiation and Cancer, San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, Milano, Italy.,Corresponding Authors: Luca Vago, Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, via Olgettina 60, Milano, Italy. Phone: 39 02-2643-4341; E-mail: ; and Raffaella Di Micco, Unit of Senescence in Stem Cell Aging, Differentiation and Cancer, San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, via Olgettina 60, Milano, Italy. Phone: 39 02-2643-5024; E-mail:
| | - Luca Vago
- Unit of Immunogenetics, Leukemia Genomics and Immunobiology, Division of Immunology, Transplantation and Infectious Disease, IRCCS San Raffaele Scientific Institute, Milano, Italy.,Hematology and Bone Marrow Transplantation Unit, IRCCS San Raffaele Scientific Institute, Milano, Italy.,San Raffaele Vita-Salute University, Milano, Italy.,Corresponding Authors: Luca Vago, Unit of Immunogenetics, Leukemia Genomics and Immunobiology, IRCCS San Raffaele Scientific Institute, via Olgettina 60, Milano, Italy. Phone: 39 02-2643-4341; E-mail: ; and Raffaella Di Micco, Unit of Senescence in Stem Cell Aging, Differentiation and Cancer, San Raffaele Telethon Institute for Gene Therapy (SR-TIGET), IRCCS San Raffaele Scientific Institute, via Olgettina 60, Milano, Italy. Phone: 39 02-2643-5024; E-mail:
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26
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Ruggeri A, de Wreede LC, Müller CR, Crivello P, Bonneville EF, Petersdorf EW, Socié G, Dubois V, Niittyvuopio R, Peräsaari J, Yakoub-Agha I, Cornelissen JJ, Wieten L, Gedde-Dahl T, Forcade E, Crawley CR, Marsh SG, Gandemer V, Tholouli E, Bulabois CE, Huynh A, Choi G, Deconinck E, Itäla-Remes M, Lenhoff S, Bengtsson M, Johansson JE, van Gorkom G, Hoogenboom JD, Vago L, Rocha V, Bonini C, Chabannon C, Fleischhauer K. Integrating biological HLA-DPB1 mismatch models to predict survival after unrelated hematopoietic cell transplantation. Haematologica 2022; 108:645-652. [PMID: 35546480 PMCID: PMC9890035 DOI: 10.3324/haematol.2021.280055] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Indexed: 02/03/2023] Open
Affiliation(s)
- Annalisa Ruggeri
- San Raffaele Scientific Institute, Hematology and Bone Marrow Transplantation Unit, Milan, Italy,Cellular Therapy and Immunobiology Working Party of the EBMT, Leiden, the Netherlands
| | | | | | - Pietro Crivello
- Institute for Experimental Cellular Therapy, University Hospital Essen, Essen, Germany
| | | | | | | | | | | | - Juha Peräsaari
- Clinical Laboratory Services, Histocompatibility Testing, Finnish Red Cross Blood Service, Helsinki, Finland
| | | | | | - Lotte Wieten
- Transplantation Immunology, Maastricht University Medical Center, Maastricht, the Netherlands
| | | | | | | | - Steven G.E. Marsh
- Anthony Nolan Research Institute and UCL Cancer Institute, Royal Free Campus, London, UK
| | | | | | | | - Anne Huynh
- CHU - Institut Universitaire du Cancer Toulouse, Toulouse, France
| | - Goda Choi
- University Medical Center Groningen (UMCG), Groningen, the Netherlands
| | | | | | | | - Mats Bengtsson
- Department of Immunology, Genetics and Pathology, Uppsala University, Uppsala, Sweden
| | | | | | | | - Luca Vago
- San Raffaele Scientific Institute, Hematology and Bone Marrow Transplantation Unit, Milan, Italy,Cellular Therapy and Immunobiology Working Party of the EBMT, Leiden, the Netherlands
| | - Vanderson Rocha
- Laboratory of Medical Investigation in Pathogenesis and Targeted Therapy in Onco-Immuno-Hematology (LIM-31) of the Service of Hematology and Cell Therapy, Hospital das Clínicas da Faculdade de Medicina da USP, São Paulo, SP, Brazil
| | - Chiara Bonini
- San Raffaele Scientific Institute, Hematology and Bone Marrow Transplantation Unit, Milan, Italy,Cellular Therapy and Immunobiology Working Party of the EBMT, Leiden, the Netherlands
| | - Christian Chabannon
- Cellular Therapy and Immunobiology Working Party of the EBMT, Leiden, the Netherlands,Institut PaoliCalmettes, Centre de Lutte Contre le Cancer, Centre d'Investigations Cliniques en Biothérapie, Université d'Aix-Marseille, Inserm CBT 1409, Marseille, France
| | - Katharina Fleischhauer
- Cellular Therapy and Immunobiology Working Party of the EBMT, Leiden, The Netherlands; Institute for Experimental Cellular Therapy, University Hospital Essen, Essen.
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27
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Pidala J, Anasetti C. Fine-tuning alloreactivity against HLA-DP to control leukemia with tolerable graft- versus-host disease. Haematologica 2022; 108:301-302. [PMID: 35546302 PMCID: PMC9890004 DOI: 10.3324/haematol.2022.281168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Indexed: 02/03/2023] Open
Affiliation(s)
- Joseph Pidala
- Blood and Marrow Transplantation and Cellular Immunotherapy H. Lee Moffitt Cancer Center and Research Institute Tampa, FL.
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28
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Fleischhauer K. Haplo-PtCy: adjusting the HLA barrier. Blood 2022; 139:1431-1433. [PMID: 35267004 DOI: 10.1182/blood.2021014532] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 10/29/2021] [Indexed: 12/25/2022] Open
Affiliation(s)
- Katharina Fleischhauer
- University Hospital Essen-Institute for Experimental Cellular Therapy
- German Cancer Consortium
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29
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Tools for optimizing risk assessment in hematopoietic cell transplant - What can we get away with? Hum Immunol 2022; 83:704-711. [PMID: 35120770 DOI: 10.1016/j.humimm.2022.01.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/20/2021] [Accepted: 01/17/2022] [Indexed: 12/13/2022]
Abstract
Unrelated allogeneic hematopoietic cell transplant (HCT) is a critical modality to treat hematologic malignancies. The current objective of donor selection is to match donor and recipient at the HLA (human leukocyte antigen) peptide-binding region which should lower the risk of graft-versus-host disease. However, depending on the patient's ethnicity/race, finding a matched donor is challenging, especially for HLA-DPB1 which is due to the weak linkage disequilibrium between HLA-DPB1 and the other HLA class II loci. Recent evidence, on the molecular level, has shown that certain HLA mismatches carry lower clinical risk. More specifically, there is an increasing understanding of polymorphisms of the innate and adaptive immune systems and their impact on transplant outcomes, allowing us to expand our "toolkit" for optimization of donor selection in HCT. Therefore, in this review we discuss matching strategies based on comparing donor and recipient polymorphisms that may influence innate and adaptive immune response genes in allorecognition and the role of single nucleotide polymorphisms in non-HLA genes that have the potential for providing additional tools to refine risk stratification.
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30
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Impact of CMV reactivation on relapse of acute myeloid leukemia after HCT is dependent on disease stage and ATG. Blood Adv 2021; 6:28-36. [PMID: 34619756 PMCID: PMC8753205 DOI: 10.1182/bloodadvances.2021005509] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2021] [Accepted: 08/26/2021] [Indexed: 11/20/2022] Open
Abstract
The impact of CMV reactivation on hematologic relapse after HCT is modulated by AML stage (CR1 or advanced) and in vivo T cell depletion. Following CMV reactivation, NRM was increased in CR1 patients without ATG, but not in patients with ATG or advanced disease stages.
Cytomegalovirus (CMV) reactivation is a frequent complication after allogeneic hematopoietic cell transplantation (HCT), whose impact on clinical outcome, in particular on leukemic relapse, is controversial. We retrospectively analyzed 687 HCT recipients with acute myeloid leukemia (AML) and ciclosporin-based immunosuppression to better understand the differential impact of CMV on transplant outcomes depending on AML disease stage and in vivo T cell depletion with antithymocyte globulin (ATG). Without ATG, CMV reactivation associated with significantly reduced relapse, yet its effect was more pronounced for advanced disease AML (P = .0002) than for patients in first complete remission (CR1, P = .0169). Depending on the disease stage, ATG exposure abrogated relapse protection following CMV reactivation in advanced stages (P = .796), while it inverted its effect into increased relapse for CR1 patients (P = .0428). CMV reactivation was associated with significantly increased nonrelapse mortality in CR1 patients without ATG (P = .0187) but not in those with advanced disease and ATG. Following CMV reactivation, only patients with advanced disease had significantly higher event-free survival rates as compared with patients without CMV. Overall, our data suggest that both ATG and disease stage modulate the impact of post-HCT CMV reactivation in opposite directions, revealing a level of complexity that warrants future studies regarding the interplay between antivirus and antitumor immunity.
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31
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Analysis of biological models to predict clinical outcomes based on HLA-DPB1 disparities in unrelated transplantation. Blood Adv 2021; 5:3377-3386. [PMID: 34448833 DOI: 10.1182/bloodadvances.2020003998] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/23/2021] [Indexed: 11/20/2022] Open
Abstract
HLA compatibility is a key factor for survival after unrelated hematopoietic stem cell transplantation (HSCT). HLA-A, -B, -C, -DRB1, and -DQB1 are usually matched between donor and recipient. By contrast, HLA-DPB1 mismatches are frequent, although it is feasible to optimize donor selection and DPB1 matching with prospective typing. Because classical DPB1 allele mismatches are often unavoidable, however, several biological models have been developed to predict the optimal DPB1 mismatch combination for less graft-versus-host disease (GVHD) and better overall survival. In 909 recipient/donor pairs, we analyzed the role of 3 biological models: T-cell epitopes (TCEs) based on the immunogenicity of DPB1, cell surface expression of DPB1 molecules based on a single-nucleotide polymorphism located in the 3' untranslated region, and the Predicted Indirectly ReCognizable HLA Epitopes (PIRCHE) model based on the presentation of allogeneic peptides derived from mismatched HLA, compared with the classical allele mismatch. Matching for both DPB1 alleles remains the best option to prevent acute GVHD. In the situation of one DPB1 allele mismatch, the donor associated with the lowest acute GVHD risks is mismatched for an allele with a low expression profile in the recipient, followed by a permissive TCE3/4 mismatch and/or the absence of PIRCHE II potential against the recipient. In the context of 2 DPB1 mismatches, the same considerations apply for a permissive TCE3/4 mismatch and no PIRCHE II. By combining the biological models, the most favorable DPB1 constellation can be defined. This approach will help optimize donor selection and improve post-HSCT complications and patient prognosis.
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32
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Sajulga R, Madbouly A, Fingerson S, Gragert L, Bashyal P, Bolon YT, Maiers M. Predicting HLA-DPB1 permissive probabilities through a DPB1 prediction service towards the optimization of HCT donor selection. Hum Immunol 2021; 82:903-911. [PMID: 34362573 DOI: 10.1016/j.humimm.2021.06.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 05/26/2021] [Accepted: 06/25/2021] [Indexed: 12/01/2022]
Abstract
Despite its demonstrated importance in hematopoietic cell transplantation, the HLA-DPB1 locus is only typed in one in five unrelated donors in the United States. Addressing this issue, we developed a DPB1 Prediction Service that leverages seven-locus haplotype frequencies (HLA-A ∼ C ∼ B ∼ DRB3/4/5 ∼ DRB1 ∼ DQB1 ∼ DPB1) to extend the imputation of six-locus HLA typing (HLA-A ∼ C ∼ B ∼ DRB3/4/5 ∼ DRB1 ∼ DQB1) to the HLA-DPB1 locus, including the novel prediction of HLA-DPB1 TCE groups to calculate donor-recipient TCE permissive match probabilities. Simulations of current-day patient searches reveal the service can fill in missing gaps for another four in five donors that appears on lists. To validate its performance, samples of 206,328 registered donors and 5,218 donor-recipient pairs with known high-resolution HLA-DPB1 typing were used for predicted-versus-observed comparisons. These comparisons demonstrated that the predictions were correct for 11.9-19.7% of HLA-DPB1 genotypes, 64.9-70.0% of TCE groups, and 61.0% of permissive match categories. Although HLA-DPB1 match predictions must be confirmed by additional typing, knowledge of TCE match probabilities facilitates rapid and improved identification of best donor options, especially for populations of color. Thus, we developed the TCE Prediction Tool user interface for a pilot program with several transplant centers to preview the accuracy and utility of this prediction framework, which provides valuable upfront optimization of donor selection.
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Affiliation(s)
- Ray Sajulga
- National Marrow Donor Program/Be The Match®, Minneapolis, MN 55401, USA; Center for International Blood and Marrow Transplant Research, Minneapolis, MN 55401, USA.
| | - Abeer Madbouly
- National Marrow Donor Program/Be The Match®, Minneapolis, MN 55401, USA; Center for International Blood and Marrow Transplant Research, Minneapolis, MN 55401, USA
| | - Stephanie Fingerson
- National Marrow Donor Program/Be The Match®, Minneapolis, MN 55401, USA; Center for International Blood and Marrow Transplant Research, Minneapolis, MN 55401, USA
| | - Loren Gragert
- National Marrow Donor Program/Be The Match®, Minneapolis, MN 55401, USA; Tulane University School of Medicine, New Orleans, LA 70112, USA
| | - Pradeep Bashyal
- National Marrow Donor Program/Be The Match®, Minneapolis, MN 55401, USA; Center for International Blood and Marrow Transplant Research, Minneapolis, MN 55401, USA
| | - Yung-Tsi Bolon
- National Marrow Donor Program/Be The Match®, Minneapolis, MN 55401, USA; Center for International Blood and Marrow Transplant Research, Minneapolis, MN 55401, USA
| | - Martin Maiers
- National Marrow Donor Program/Be The Match®, Minneapolis, MN 55401, USA
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33
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Hess NJ, Brown ME, Capitini CM. GVHD Pathogenesis, Prevention and Treatment: Lessons From Humanized Mouse Transplant Models. Front Immunol 2021; 12:723544. [PMID: 34394131 PMCID: PMC8358790 DOI: 10.3389/fimmu.2021.723544] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 07/15/2021] [Indexed: 01/14/2023] Open
Abstract
Graft-vs-host disease (GVHD) is the most common cause of non-relapse mortality following allogeneic hematopoietic stem cell transplantation (HSCT) despite advances in conditioning regimens, HLA genotyping and immune suppression. While murine studies have yielded important insights into the cellular responses of GVHD, differences between murine and human biology has hindered the translation of novel therapies into the clinic. Recently, the field has expanded the ability to investigate primary human T cell responses through the transplantation of human T cells into immunodeficient mice. These xenogeneic HSCT models benefit from the human T cell receptors, CD4 and CD8 proteins having cross-reactivity to murine MHC in addition to several cytokines and co-stimulatory proteins. This has allowed for the direct assessment of key factors in GVHD pathogenesis to be investigated prior to entering clinical trials. In this review, we will summarize the current state of clinical GVHD research and discuss how xenogeneic HSCT models will aid in advancing the current pipeline of novel GVHD prophylaxis therapies into the clinic.
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Affiliation(s)
- Nicholas J. Hess
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Matthew E. Brown
- Department of Surgery, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
| | - Christian M. Capitini
- Department of Pediatrics, University of Wisconsin School of Medicine and Public Health, Madison, WI, United States
- University of Wisconsin Carbone Cancer Center, Madison, WI, United States
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Crocchiolo R, Mele L, Testi M, Scollo Chiara M, Murgia B, Rossi A, Vecchiato C, Grammatico P, Mininni D, Longhi E, Manfroi S, Giuliodori S, Castellani L, Carella G, Lai S, Azzaro Maria P, Mazzi B, Perotti L, Penta R, Lombardo C, Tognellini R, Andreani M, Albergoni Maria P, Nesci S, Cappuzzo V, Chiusolo P, Garino E, Cappucci G, Ceschini N, Bevilacqua E, Guizzardi E, Tagliaferri Cinzia M, Piazza A, Carcassi C, Miotti V. Use of DPB1 T-cell epitope algorithm among italian transplant centers: A survey on behalf of Associazione Italiana di Immunogenetica e Biologia dei Trapianti. HLA 2021; 98:114-121. [PMID: 34155826 DOI: 10.1111/tan.14347] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2021] [Revised: 06/01/2021] [Accepted: 06/18/2021] [Indexed: 11/26/2022]
Abstract
The HLA-DPB1 locus has been demonstrated to have a significant role on patients' outcome after allogeneic HSCT, and the so-called T-cell epitope (TCE) algorithm has been incorporated in international guidelines for the selection of unrelated donors. The purpose of the present study is to measure, through a national survey conducted on behalf of the Associazione Italiana di Immunogenetica e Biologia dei Trapianti (AIBT), the extent of awareness and use of HLA-DPB1 TCE-based algorithms during the donor search. 89% of the HLA laboratories answered to a short questionnaire and the results showed a progressive increase of the laboratories typing DPB1 in patients and their potential donors during the search (from 44% to 79% during the 2010-2019 period) as well as the application of a TCE-based algorithm for the donor choice whenever possible (from 24% to 65% during the same period). The DP-permissiveness status is detailed in the official HLA typing report by 12%, 32% and 50% of laboratories in 2010, 2015 and 2019, respectively. The present data indicate an encouraging raise in the awareness of the HLA-DPB1 role in unrelated donor selection; noteworthy, mentioning the TCE-based permissiveness status in the HLA typing report of each potential unrelated donor represents a notable mean to raise awareness among transplant physicians and to support them in their task of choosing the best donor. Nonetheless, despite the compelling evidence of the predictive ability of TCE-based algorithms, further efforts are still needed to extend its application to all transplant centers in Italy.
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Affiliation(s)
- Roberto Crocchiolo
- Servizio di Immunoematologia e Medicina Trasfusionale, ASST Grande Ospedale Metropolitano Niguarda, Milan, Italy
| | - Lia Mele
- Laboratorio HLA e processazione cellule staminali ematopoietiche, Azienda Ospedaliera SS Antonio e Biagio e C Arrigo, Alessandria, Italy; Treasurer, Associazione Italiana di Immunogenetica e Biologia dei Trapianti, AIBT, Alessandria, Italy
| | - Manuela Testi
- Secretary, Associazione Italiana di Immunogenetica e Biologia dei Trapianti, AIBT, Bologna, Italy
| | | | - Barbara Murgia
- SC laboratorio di istocompatibilità, EO Ospedali Galliera, Genoa, Italy
| | - Angela Rossi
- UOSD Immunogenetica e Manipolazione cellule staminali emopoietiche, Ospedale ''Guglielmo da Saliceto'', Piacenza, Italy
| | - Cinzia Vecchiato
- Transfusion Service, San Maurizio Regional Hospital, Bolzano, Italy
| | - Paola Grammatico
- UOC Laboratorio di Genetica Medica, Ospedale San Camillo, Rome, Italy
| | - Donata Mininni
- Tissue Typing and Immunology of Transplants Unit, Department of Diagnostic Pathology, University of Bari, Bari, Italy
| | - Elena Longhi
- Laboratory of Transplant Immunology, IRCCS Ca ' Granda Foundation Maggiore Policlinico Hospital Milan, Milan, Italy
| | - Silvia Manfroi
- Immunohaematology and Transfusion Medicine Service, S. Orsola-Malpighi Polyclinic, Bologna, Italy
| | | | - Laura Castellani
- UOC immunoematologia e medicina trasfusionale, Laboratorio immunogenetica - ASST Papa Giovanni XXIII, Bergamo, Italy
| | - Graziella Carella
- Laboratorio di Istocompatibilità, ''Vittorio Mero'' Servizio di Immunoematologia e Medicina Trasfusionale, ASST Spedali Civili, Brescia, Italy
| | - Sara Lai
- SC Genetica Medica Cagliari - ATS Sardegna, Cagliari, Italy
| | - Pia Azzaro Maria
- Laboratorio di istocompatibilità, Centro Donatori di midollo Osseo (CD-CT02) dell'UOC di Ematologia con trapianto di Midollo Ossero - AOU Policlinico San Marco, Catania, Italy
| | - Benedetta Mazzi
- Immunogenetics laboratory, HLA & Chimerism - Dept. of ImmunoHematology & Blood Transfusion, IRCCS Ospedale San Raffaele, Milan, Italy
| | - Laura Perotti
- Servizio di Immunoematologia e Trasfusionale, ASO Santa Croce e Carle, Cuneo, Italy
| | - Roberta Penta
- Laboratorio di istoconpatibilità, UOSD Criopreservazione e BaSCO, PO Pausilipon - AORN Santobono-Pausilipon, Naples, Italy
| | - Claudia Lombardo
- Laboratorio di Tipizzazione HLA, Servizio Di Immunoematologia e Medicina Trasfusionale, Fondazione IRCSS Istituto Tumori, Milan, Italy
| | - Rita Tognellini
- Laboratorio di immunogenetica e biologia dei trapianti, Servizio Immunoematologia e trasfusionale, Azienda Ospedaliera Perugia, Perugia, Italy
| | - Marco Andreani
- Transplantation Immunogenetics Laboratory, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy
| | | | - Sonia Nesci
- Settore di Immunogenetica e Biologia dei Trapianti, S.S.D. Diagnostica ad alta complessità - Dipartimento di Diagnostica Clinica, Azienda Ospedali Riuniti Marche Nord-, Pesaro, Italy
| | - Valentina Cappuzzo
- Laboratorio Regionale di Tipizzazione Tessutale ed Immunologia dei Trapianti, U.O.C. Medicina Trasfusionale e dei Trapianti - P.O. Cervello - A.O.R. Villa Sofia-Cervello, Palermo, Italy
| | - Patrizia Chiusolo
- Dipartimento di Diagnostica per Immagini, Radioterapia Oncologica ed Ematologia, Fondazione Policlinico Universitario A. Gemelli IRCSS, Rome, Italy
| | - Elena Garino
- SC Immunogenetica e Biologia dei Trapianti, A.O.U. Città della Salute e della Scienza di Torino, Pavia, Italy
| | - Giuseppe Cappucci
- IRCCS Casa Sollievo della Sofferenza Hospital, San Giovanni Rotondo, Italy
| | - Nadia Ceschini
- Laboratorio di Tipizzazione Tissutale HLA, S.I.T., Ospedale Santa Chiara, Trento, Italy
| | - Elena Bevilacqua
- Laboratorio di Tipizzazione tissutale, Dipartimento di Medicina Trasfusionale, Azienda Sanitaria Universitaria Giuliano Isontina - ASUGI, Trieste, Italy
| | | | | | - Antonina Piazza
- Associazione Italiana di Immunogenetica e Biologia dei Trapianti, AIBT, Bologna, Italy
| | - Carlo Carcassi
- Medical Genetics, Department of Medical Sciences and Public Health, University of Cagliari, Associazione Italiana di Immunogenetica e Biologia dei Trapianti, AIBT, Cagliari, Italy
| | - Valeria Miotti
- Laboratory of Immunogenetics, Santa Maria della Misericordia University Hospital, Associazione Italiana di Immunogenetica e Biologia dei Trapianti, AIBT, Udine, Italy
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35
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The immunopeptidome guides permissive HLA mismatch. Blood 2021; 137:864-865. [PMID: 33599759 DOI: 10.1182/blood.2020009266] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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