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Major-Monfried H, Hosszu K, McAvoy DP, Vallone A, Shukla N, Gillio A, Spitzer B, Kung AL, Cancio M, Curran K, Scaradavou A, Oved JH, O'Reilly RJ, Boelens JJ, Harris AC. Two novel assays demonstrate persistent daratumumab exposure in a pediatric patient with delayed engraftment following allogeneic hematopoietic stem cell transplantation. Cytotherapy 2024; 26:466-471. [PMID: 38430078 DOI: 10.1016/j.jcyt.2024.01.005] [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: 03/31/2023] [Revised: 11/08/2023] [Accepted: 01/25/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND AIMS Daratumumab, a human IgG monoclonal antibody targeting CD38, is a promising treatment for pediatric patients with relapsed or refractory T-cell acute lymphoblastic leukemia (T-ALL). We describe a case of delayed engraftment following a mismatched, unrelated donor hematopoietic stem cell transplant (HSCT) in a 14-year-old female with relapsed T-ALL, treated with daratumumab and chemotherapy. By Day 28 post-HSCT, the patient had no neutrophil engraftment but full donor myeloid chimerism. METHODS We developed two novel, semi-quantitative, antibody-based assays to measure the patient's bound and plasma daratumumab levels to determine if prolonged drug exposure may have contributed to her slow engraftment. RESULTS Daratumumab levels were significantly elevated more than 30 days after the patient's final infusion, and levels inversely correlated with her white blood cell counts. To clear daratumumab, the patient underwent several rounds of plasmapheresis and subsequently engrafted. CONCLUSIONS This is the first report of both delayed daratumumab clearance and delayed stem cell engraftment following daratumumab treatment in a pediatric patient. Further investigation is needed to elucidate the optimal dosing of daratumumab for treatment of acute leukemias in pediatric populations as well as daratumumab's potential effects on hematopoietic stem cells and stem cell engraftment following allogenic HSCT.
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Affiliation(s)
- Hannah Major-Monfried
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA.
| | - Kinga Hosszu
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Devin P McAvoy
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Alexander Vallone
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Neerav Shukla
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Alfred Gillio
- Pediatric Blood and Marrow Transplantation, Hackensack University Medical Center, Hackensack, New Jersey, USA
| | - Barbara Spitzer
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA; Pediatric Blood and Marrow Transplantation, Hackensack University Medical Center, Hackensack, New Jersey, USA
| | - Andrew L Kung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Maria Cancio
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Kevin Curran
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Andromachi Scaradavou
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Joseph H Oved
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Richard J O'Reilly
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Jaap Jan Boelens
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
| | - Andrew C Harris
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, New York, New York, USA
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2
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Obiorah I, Courville EL. Diagnostic Flow Cytometry in the Era of Targeted Therapies: Lessons from Therapeutic Monoclonal Antibodies and Chimeric Antigen Receptor T-cell Adoptive Immunotherapy. Surg Pathol Clin 2023; 16:423-431. [PMID: 37149367 DOI: 10.1016/j.path.2023.01.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Therapeutic monoclonal antibodies (therapeutic mAb) and adoptive immunotherapy have become increasingly more common in the treatment of hematolymphoid neoplasms, with practical implications for diagnostic flow cytometry. Their use can reduce the sensitivity of flow cytometry for populations of interest owing to downregulation/loss of the target antigen, competition for the target antigen, or lineage switch. Expanded flow panels, marker redundancy, and exhaustive gating strategies can overcome this limitation. Therapeutic mAb have been reported to cause pseudo-light chain restriction, and awareness of this potential artifact is key. Established guidelines do not yet exist for antigen expression by flow cytometry for therapeutic purposes.
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Affiliation(s)
- Ifeyinwa Obiorah
- Department of Pathology, University of Virginia Health, PO Box 800214, Charlottesville, VA 22908, USA
| | - Elizabeth L Courville
- Department of Pathology, University of Virginia Health, PO Box 800214, Charlottesville, VA 22908, USA.
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3
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Cordone I, Amodeo R, Bellesi S, Bottan F, Buccisano F, De Propris MS, Masi S, Panichi V, Scerpa MC, Annibali O, Bongarzoni V, Caravita di Toritto T, Coppetelli U, Cupelli L, de Fabritiis P, Franceschini L, Garzia M, Fiorini A, Laverde G, Mengarelli A, Za T, Petrucci MT. Consensus for Flow Cytometry Clinical Report on Multiple Myeloma: A Multicenter Harmonization Process Merging Laboratory Experience and Clinical Needs. Cancers (Basel) 2023; 15:cancers15072060. [PMID: 37046720 PMCID: PMC10093543 DOI: 10.3390/cancers15072060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Revised: 03/14/2023] [Accepted: 03/14/2023] [Indexed: 04/03/2023] Open
Abstract
Flow cytometry is a highly sensitive and specific approach for discriminating between normal and clonal plasma cells in multiple myeloma. Uniform response criteria after treatment have been established by the International Myeloma Working Group and the EuroFlow Group; however, the way in which flow cytometry data are reported has suffered from no collaborative or multicentre efforts. This study, involving 8 expert laboratories and 12 clinical hematology units of the Lazio region in Italy, aims to produce a uniform and shared report among the various Centres. From the pre-analytical phase to sample processing, data acquisition, analysis, and evaluation of the potential limitations and pitfalls of the entire process, the study reaches a final conclusion shared by laboratories and clinicians according to the most updated principles and recommendations. The aim was to identify the necessary data to be included in the clinical report by using multiple-choice questionnaires at every single stage of the process. An agreement of more than 75% of the laboratories was considered mandatory for the data to be included in the report. By ensuring the operational autonomy of each laboratory, this study provides a clear report that limits subjective interpretations and highlights possible bias in the process, better supporting clinical decision-making.
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Affiliation(s)
- Iole Cordone
- Department of Research, Advanced Diagnostic and Technological Innovation, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
- Correspondence: ; Tel.: +39-065-266-5110
| | - Rachele Amodeo
- Clinical Pathology and Biochemistry Unit, Sant’Andrea University Hospital, 00189 Rome, Italy
| | - Silvia Bellesi
- Department of Diagnostic Imaging, Oncological Radiotherapy and Haematology, IRCCS Foundation A. Gemelli University Hospital, 00168 Rome, Italy
| | - Fiorella Bottan
- Clinical Pathology Unit, San Giovanni Addolorata Hospital, 00184 Rome, Italy
| | - Francesco Buccisano
- Haematology and Stem Cell Transplant Unit, Department of Biomedicine and Prevention, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
| | - Maria Stefania De Propris
- Immunophenotype Laboratory, Department of Translational and Precision Medicine, ‘Sapienza’ University, 00185 Rome, Italy
| | - Serena Masi
- Department of Research, Advanced Diagnostic and Technological Innovation, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Valentina Panichi
- Microbiology and Virology Unit, Department of Oncology and Haematology, Belcolle Central Hospital, 01100 Viterbo, Italy
| | - Maria Cristina Scerpa
- Haematology and Stem Cell Unit, Santa Maria Goretti Hospital, ASL Latina, 04100 Latina, Italy
| | - Ombretta Annibali
- Haematology and Stem Cell Transplant Unit, Campus Bio-Medico University, 00128 Rome, Italy
| | - Velia Bongarzoni
- Haematology Unit, San Giovanni Addolorata Hospital, 00184 Rome, Italy
| | | | - Ugo Coppetelli
- Haematology and Stem Cell Unit, Santa Maria Goretti Hospital, ASL Latina, 04100 Latina, Italy
| | - Luca Cupelli
- Haematology Unit, Sant’Eugenio Hospital, ASL Roma 2, 00144 Rome, Italy
| | | | - Luca Franceschini
- Haematology and Stem Cell Transplant Unit, Department of Biomedicine and Prevention, University of Rome ‘Tor Vergata’, 00133 Rome, Italy
| | - Mariagrazia Garzia
- Haematology and Stem Cell Transplant Unit, San Camillo Forlanini Hospital, 00152 Rome, Italy
| | - Alessia Fiorini
- Department of Oncology and Haematology, Belcolle Central Hospital, 01100 Viterbo, Italy
| | - Giacinto Laverde
- Haematology Unit, Sant’Andrea University Hospital, 00189 Rome, Italy
| | - Andrea Mengarelli
- Department of Research and Clinical Oncology, IRCCS Regina Elena National Cancer Institute, 00144 Rome, Italy
| | - Tommaso Za
- Department of Diagnostic Imaging, Oncological Radiotherapy and Haematology, IRCCS Foundation A. Gemelli University Hospital, 00168 Rome, Italy
| | - Maria Teresa Petrucci
- Haematology Unit, Department of Translational and Precision Medicine, ‘Sapienza’ University, 00185 Rome, Italy
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Pacelli P, Raspadori D, Bestoso E, Gozzetti A, Bocchia M. "Friends and foes" of multiple myeloma measurable/minimal residual disease evaluation by next generation flow. Front Oncol 2022; 12:1057713. [PMID: 36518304 PMCID: PMC9742464 DOI: 10.3389/fonc.2022.1057713] [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: 09/29/2022] [Accepted: 11/14/2022] [Indexed: 09/19/2023] Open
Abstract
Next Generation Flow (NGF) represents a gold standard for the evaluation of Minimal Residual Disease (MRD) in Multiple Myeloma (MM) patients at any stage of treatment. Although the assessment of MRD is still not universally employed in clinical practice, numerous studies have demonstrated the strength of MRD as a reliable predictor of long-term outcome, and its potential to supersede the prognostic value of CR. The possibility to acquire millions of events, in combination with the use of standard reagents and a good expertise in the analysis of rare populations, led to high chance of success and a sensitivity of 10-6 that is superimposable to the one of Next Generation Sequencing molecular techniques. Some minor bias, correlated to the protocols applied, to the quality of samples and to the high heterogeneity of plasma cells phenotype, may be overcome using standard protocols and having at disposition personnel expertise for MRD analysis. With the use of NGF we can today enter a new phase of the quantification of residual disease, switching from the definition of "minimal" residual disease to "measurable" residual disease. This review takes account of the principle "friends and foes" of Myeloma "Measurable" Residual Disease evaluation by NGF, to give insights into the potentiality of this technique. The optimization of the quality of BM samples and the analytic expertise that permits to discriminate properly the rare pathologic clones, are the keys for obtaining results with a high clinical value that could be of great impact and relevance in the future.
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Affiliation(s)
- Paola Pacelli
- Hematology Unit, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
| | | | - Elena Bestoso
- Hematology Unit, Siena University Hospital, Siena, Italy
| | - Alessandro Gozzetti
- Hematology Unit, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
- Hematology Unit, Siena University Hospital, Siena, Italy
| | - Monica Bocchia
- Hematology Unit, Department of Medicine, Surgery and Neuroscience, University of Siena, Siena, Italy
- Hematology Unit, Siena University Hospital, Siena, Italy
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Gao Q, Chen X, Cherian S, Roshal M. Mature B‐ and plasma‐cell flow cytometric analysis: A review of the impact of targeted therapy. CYTOMETRY PART B: CLINICAL CYTOMETRY 2022; 104:224-242. [PMID: 36321879 DOI: 10.1002/cyto.b.22097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/04/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022]
Abstract
Flow cytometry has been indispensable in diagnosing B cell lymphoma and plasma cell neoplasms. The advances in novel multicolor flow cytometry have also made this technology a robust tool for monitoring minimal/measurable residual disease in chronic lymphocytic leukemia and multiple myeloma. However, challenges using conventional gating strategies to isolate neoplastic B or plasma cells are emerging due to the rapidly increasing number of antibody therapeutics targeting single or multiple classic B/plasma cell-lineage markers, such as CD19, CD20, and CD22 in B cells and CD38 in plasma cells. This review is the first of a two-part series that summarizes the most current targeted therapies used in B and plasma cell neoplasms and proposes detailed alternative approaches to overcome post-targeted therapy analysis challenges by flow cytometry. The second review in this series (Chen et al.) focuses on challenges encountered in the use of targeted therapy in precursor B cell neoplasms.
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Affiliation(s)
- Qi Gao
- Hematopathology Service, Department of Pathology and Laboratory Medicine Memorial Sloan Kettering Cancer Center New York New York USA
| | - Xueyan Chen
- Department of Laboratory Medicine and Pathology University of Washington Seattle WA USA
| | - Sindu Cherian
- Department of Laboratory Medicine and Pathology University of Washington Seattle WA USA
| | - Mikhail Roshal
- Hematopathology Service, Department of Pathology and Laboratory Medicine Memorial Sloan Kettering Cancer Center New York New York USA
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Pape LJ, Hambach J, Gebhardt AJ, Rissiek B, Stähler T, Tode N, Khan C, Weisel K, Adam G, Koch-Nolte F, Bannas P. CD38-specific nanobodies allow in vivo imaging of multiple myeloma under daratumumab therapy. Front Immunol 2022; 13:1010270. [PMID: 36389758 PMCID: PMC9647632 DOI: 10.3389/fimmu.2022.1010270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Accepted: 10/03/2022] [Indexed: 08/30/2023] Open
Abstract
RATIONALE Recent studies have demonstrated the feasibility of CD38-specific antibody constructs for in vivo imaging of multiple myeloma. However, detecting multiple myeloma in daratumumab-pretreated patients remains difficult due to overlapping binding epitopes of the CD38-specific imaging antibody constructs and daratumumab. Therefore, the development of an alternative antibody construct targeting an epitope of CD38 distinct from that of daratumumab is needed. We report the generation of a fluorochrome-conjugated nanobody recognizing such an epitope of CD38 to detect myeloma cells under daratumumab therapy in vitro, ex vivo, and in vivo. METHODS We conjugated the CD38-specific nanobody JK36 to the near-infrared fluorescent dye Alexa Fluor 680. The capacity of JK36AF680 to bind and detect CD38-expressing cells pretreated with daratumumab was evaluated on CD38-expressing tumor cell lines in vitro, on primary myeloma cells from human bone marrow biopsies ex vivo, and in a mouse tumor model in vivo. RESULTS Fluorochrome-labeled nanobody JK36AF680 showed specific binding to CD38-expressing myeloma cells pretreated with daratumumab in vitro and ex vivo and allowed for specific imaging of CD38-expressing xenografts in daratumumab-pretreated mice in vivo. CONCLUSIONS Our study demonstrates that a nanobody recognizing a distinct, non-overlapping epitope of CD38 allows the specific detection of myeloma cells under daratumumab therapy in vitro, ex vivo, and in vivo.
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Affiliation(s)
- Luca Julius Pape
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Julia Hambach
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Anna Josephine Gebhardt
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Björn Rissiek
- Department of Neurology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias Stähler
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Natalie Tode
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Cerusch Khan
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Katja Weisel
- Department of Oncology, Hematology and Bone Marrow Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gerhard Adam
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Friedrich Koch-Nolte
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Peter Bannas
- Department of Diagnostic and Interventional Radiology and Nuclear Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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7
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Mack EKM, Hartmann S, Ross P, Wollmer E, Mann C, Neubauer A, Brendel C, Hoffmann J. Monitoring multiple myeloma in the peripheral blood based on cell-free DNA and circulating plasma cells. Ann Hematol 2022; 101:811-824. [PMID: 35106639 PMCID: PMC8913458 DOI: 10.1007/s00277-022-04771-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Accepted: 01/16/2022] [Indexed: 11/25/2022]
Abstract
With the advent of novel, highly effective therapies for multiple myeloma (MM), classical serologic monitoring appears insufficient for response assessment and prediction of relapse. Moreover, serologic studies in MM are hampered by interference of therapeutic antibodies. The detection of malignant plasma cell clones by next generation sequencing (NGS) or multiparameter flow cytometry (MFC) circumvents these difficulties and can be performed in the peripheral blood (pB) by targeting circulating cell-free DNA (cfDNA) or circulating plasma cells (CPCs), thus also avoiding an invasive sampling procedure. Here, we applied NGS of VJ light chain (LC) rearrangements in cfDNA and MFC of magnetically-enriched CD138-positive CPCs (me-MFC) to investigate disease burden in unselected MM patients. Sequencing was successful for 114/130 (87.7%) cfDNA samples and me-MFC results were analyzable for 196/205 (95.6%) samples. MM clones were detectable in 38.9% of samples taken at initial diagnosis or relapse (ID/RD), but only in 11.8% of samples taken during complete remission (CR). Circulating MM plasma cells were present in 83.3% of ID/RD samples and 9.9% of CR samples. Residual disease assessment by NGS or me-MFC in samples taken during very good partial remission or CR was 80% concordant. Notably, 4/4 (NGS) and 5/8 (me-MFC) positive CR samples were from patients with oligo- or non-secretory myeloma. The time to progression was shorter if there was evidence of residual myeloma in the pB. Together, our findings indicate that our two novel analytical approaches accurately indicate the course of MM and may be particularly valuable for monitoring patients with serologically non-trackable disease.
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Affiliation(s)
- Elisabeth K M Mack
- Department of Hematology, Oncology and Immunology, Philipps-University Marburg and University Hospital Gießen and Marburg, 35032, Baldingerstraße, Marburg, Germany.
| | - Sören Hartmann
- Department of Hematology, Oncology and Immunology, Philipps-University Marburg and University Hospital Gießen and Marburg, 35032, Baldingerstraße, Marburg, Germany
| | - Petra Ross
- Department of Hematology, Oncology and Immunology, Philipps-University Marburg and University Hospital Gießen and Marburg, 35032, Baldingerstraße, Marburg, Germany
| | - Ellen Wollmer
- Department of Hematology, Oncology and Immunology, Philipps-University Marburg and University Hospital Gießen and Marburg, 35032, Baldingerstraße, Marburg, Germany
| | - Christoph Mann
- Department of Hematology, Oncology and Immunology, Philipps-University Marburg and University Hospital Gießen and Marburg, 35032, Baldingerstraße, Marburg, Germany
| | - Andreas Neubauer
- Department of Hematology, Oncology and Immunology, Philipps-University Marburg and University Hospital Gießen and Marburg, 35032, Baldingerstraße, Marburg, Germany
| | - Cornelia Brendel
- Department of Hematology, Oncology and Immunology, Philipps-University Marburg and University Hospital Gießen and Marburg, 35032, Baldingerstraße, Marburg, Germany
| | - Jörg Hoffmann
- Department of Hematology, Oncology and Immunology, Philipps-University Marburg and University Hospital Gießen and Marburg, 35032, Baldingerstraße, Marburg, Germany.
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