1
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Bister A, Ibach T, Haist C, Gerhorst G, Smorra D, Soldierer M, Roellecke K, Wagenmann M, Scheckenbach K, Gattermann N, Wiek C, Hanenberg H. Optimized NGFR-derived hinges for rapid and efficient enrichment and detection of CAR T cells in vitro and in vivo. Mol Ther Oncolytics 2022; 26:120-134. [PMID: 35795096 PMCID: PMC9240717 DOI: 10.1016/j.omto.2022.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/27/2022] [Indexed: 11/25/2022] Open
Abstract
Chimeric antigen receptor (CAR) T cell therapy has demonstrated unprecedented success with high remission rates for heavily pretreated patients with hematological malignancies. The hinge connecting the extracellular antigen recognition unit to the transmembrane domain provides the length and flexibility of the CAR constructs and ensures that the CAR can reach the target antigen and mediate recognition and killing of target cells. The hinge can also include specific amino acid sequences to improve CAR expression, influence T cell proliferation, and facilitate CAR T cell detection, enrichment, and even elimination. Here, we report the generation of two novel hinge domains derived from the low-affinity p75 chain of the human nerve growth factor receptor (NGFR), termed N3 and N4, which, when incorporated into the CAR backbone, allow detection as well as high-grade enrichment of CAR T cells with GMP-compatible immunomagnetic reagents. After optimizing the MACS protocol for excellent CAR T cell purity and yield, we demonstrated that N3- and N4-hinged CAR T cells are as efficacious as their CD8-hinged counterparts in vitro against hematological blasts and also in vivo in the control of acute monocytic leukemia in an immunodeficient mouse xenograft model. Thus, both hinges could potentially be an integral part of future CAR designs and universally applicable in clinical applications.
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2
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Monfrini C, Stella F, Aragona V, Magni M, Ljevar S, Vella C, Fardella E, Chiappella A, Nanetti F, Pennisi M, Dodero A, Guidetti A, Corradini P, Carniti C. Phenotypic Composition of Commercial Anti-CD19 CAR T Cells Affects In Vivo Expansion and Disease Response in Patients with Large B-cell Lymphoma. Clin Cancer Res 2022; 28:3378-3386. [PMID: 35583610 PMCID: PMC9662896 DOI: 10.1158/1078-0432.ccr-22-0164] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/11/2022] [Accepted: 05/16/2022] [Indexed: 01/07/2023]
Abstract
PURPOSE In clinical trials, the expansion and persistence of chimeric antigen receptor (CAR) T cells correlate with therapeutic efficacy. However, properties of CAR T cells that enable their in vivo proliferation have still to be consistently defined and the role of CAR T bag content has never been investigated in a real-life setting. EXPERIMENTAL DESIGN Residual cells obtained after washing 61 anti-CD19 CAR T product bags were analyzed to identify tisagenlecleucel/Tisa-cel and axicabtagene ciloleucel/Axi-cel phenotypic features associated with postinfusion CAR T-cell in vivo expansion and with response and survival. RESULTS While Tisa-cel was characterized by a significant enrichment in CAR+CD4+ T cells with central memory (P < 0.005) and effector (P < 0.005) phenotypes and lower rates of CAR+CD8+ with effector memory (P < 0.005) and naïve-like (P < 0.05) phenotypes as compared with Axi-cel, the two products displayed similar expansion kinetics. In vivo CAR T-cell expansion was influenced by the presence of CAR T with a CD8+ T central memory signature (P < 0.005) in both Tisa-cel and Axi-cel infusion products and was positively associated with response and progression-free survival (P < 0.05). CONCLUSIONS Our data indicate that despite the great heterogeneity of Tisa-cel and Axi-cel products, the differentiation status of the infused cells mediates CAR T-cell in vivo proliferation that is necessary for antitumor response.
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Affiliation(s)
- Chiara Monfrini
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | | | - Vanessa Aragona
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Martina Magni
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Silva Ljevar
- Department of Clinical Epidemiology and Trial Organization, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Cristina Vella
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | | | - Annalisa Chiappella
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Francesca Nanetti
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Martina Pennisi
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Anna Dodero
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
| | - Anna Guidetti
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy.,School of Medicine, Università degli Studi di Milano, Italy
| | - Paolo Corradini
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy.,School of Medicine, Università degli Studi di Milano, Italy.,Corresponding Author: Paolo Corradini, Fondazione IRCCS Istituto Nazionale Tumori and University of Milano, Medical Oncology, Via Venezian 1, Milano 20133, Italy. Phone: 0039-02-2390-2950; E-mail:
| | - Cristiana Carniti
- Hematology Division, Fondazione IRCCS Istituto Nazionale dei Tumori, Milano, Italy
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3
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Cao XY, Li JJ, Lu PH, Liu KY. Efficacy and safety of CD19 CAR-T cell therapy for acute lymphoblastic leukemia patients relapsed after allogeneic hematopoietic stem cell transplantation. Int J Hematol 2022; 116:315-329. [PMID: 35737192 DOI: 10.1007/s12185-022-03398-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2022] [Revised: 05/30/2022] [Accepted: 05/30/2022] [Indexed: 10/17/2022]
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is an effective therapy for B-cell acute lymphoblastic leukemia (B-ALL). Although allo-HSCT can be curative for some B-ALL patients, relapse still occurs in some patients following allo-HSCT. Conventional chemotherapies show poor efficacy in B-ALL patients who have relapsed following allo-HSCT. In the past decade, chimeric antigen receptor T-cell (CAR-T) therapy has shown to be efficacious for B-ALL patients. In particular, autologous CD19 CAR-T therapy results in a high remission rate. However, there are challenges in the use of CD19 CAR-T therapy for B-ALL patients who have relapsed following allo-HSCT, including the selection of CAR-T cell source for manufacturing, post-CAR-T graft-versus-host disease (GVHD) risk, maintenance of long-term efficacy after remission through CAR-T therapy, and whether a consolidative second transplant is needed. In this review, we describe the current status of CAR-T therapy for B-ALL patients who have relapsed following allo-HSCT, the advantages and disadvantages of various CAR-T cell sources, the characteristics and management of GVHD following CAR-T therapy, and the risk factors that may affect long-term efficacy.
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Affiliation(s)
- Xing-Yu Cao
- Hebei Yanda Lu Daopei Hospital, Langfang, Hebei, China.,Beijing Lu Daopei Institute of Hematology, Beijing, China
| | - Jing-Jing Li
- Hebei Yanda Lu Daopei Hospital, Langfang, Hebei, China.,Beijing Lu Daopei Institute of Hematology, Beijing, China
| | - Pei-Hua Lu
- Hebei Yanda Lu Daopei Hospital, Langfang, Hebei, China. .,Beijing Lu Daopei Institute of Hematology, Beijing, China.
| | - Kai-Yan Liu
- Beijing Lu Daopei Institute of Hematology, Beijing, China. .,Peking University People's Hospital, Beijing, China.
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4
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Berger M, Barone M, Spadea M, Saglio F, Pessolano R, Fagioli F. HSCT with mismatched unrelated donors: Bone marrow versus peripheral blood stem cells sources in pediatric patients. Pediatr Transplant 2022; 26:e14233. [PMID: 35092128 DOI: 10.1111/petr.14233] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 09/25/2021] [Accepted: 01/05/2022] [Indexed: 11/30/2022]
Abstract
BACKGROUND Allogeneic hematopoietic stem cell transplantation (HSCT) from an unrelated HLA-mismatched donor (MMUD) is one of the alternatives where an HLA-matched donor is not found. The aim of this study was to compare bone marrow (BM) versus peripheral blood stem cells (PBSC) as hematopoietic rescue following allogeneic unrelated mismatched stem cell transplantation (MMUD). METHODS The patients were divided into two groups: 43 pediatric patients were treated with BM and 17 pediatric patients with PBSC. The study was registered at ClinicalTrials.gov NCT04598789. RESULTS The 3-year Overall Survival (OS) was 74% versus 31% (p = .0011). Transplant related mortality (TRM) was 16% versus 33% (p = .025), and relapse incidence (RI) was 16% versus 35% (p = .005). The day-100 acute Graft-versus-host disease (GvHD) incidence grade II-IV and III-IV was 30% versus 28% (p = NS) and 17% versus 17% (p = NS). The 3-year chronic GvHD incidence was 22% versus 33% (p = NS). CONCLUSION Despite all the limits of this retrospective study we were able to show how the combination of BM and ATG is able to prevent GvHDs and guarantee a high OS. Future studies addressing the issue of a post-transplant cellular therapy approach may potentially reduce relapses when GvHD is absent.
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Affiliation(s)
- Massimo Berger
- Pediatric Onco-Hematology, City of Health and Science, Turin Metropolitan Transplant Center, Regina Margherita Children Hospital, University of Turin, Turin, Italy
| | - Marta Barone
- Pediatric Onco-Hematology, City of Health and Science, Turin Metropolitan Transplant Center, Regina Margherita Children Hospital, University of Turin, Turin, Italy
| | - Manuela Spadea
- Pediatric Onco-Hematology, City of Health and Science, Turin Metropolitan Transplant Center, Regina Margherita Children Hospital, University of Turin, Turin, Italy
| | - Francesco Saglio
- Pediatric Onco-Hematology, City of Health and Science, Turin Metropolitan Transplant Center, Regina Margherita Children Hospital, University of Turin, Turin, Italy
| | - Rosanna Pessolano
- Pediatric Onco-Hematology, City of Health and Science, Turin Metropolitan Transplant Center, Regina Margherita Children Hospital, University of Turin, Turin, Italy
| | - Franca Fagioli
- Pediatric Onco-Hematology, City of Health and Science, Turin Metropolitan Transplant Center, Regina Margherita Children Hospital, University of Turin, Turin, Italy
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5
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Peinelt A, Bremm M, Kreyenberg H, Cappel C, Banisharif-Dehkordi J, Erben S, Rettinger E, Jarisch A, Meisel R, Schlegel PG, Beck O, Bug G, Klusmann JH, Klingebiel T, Huenecke S, Bader P. Monitoring of Circulating CAR T Cells: Validation of a Flow Cytometric Assay, Cellular Kinetics, and Phenotype Analysis Following Tisagenlecleucel. Front Immunol 2022; 13:830773. [PMID: 35309367 PMCID: PMC8926389 DOI: 10.3389/fimmu.2022.830773] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 02/11/2022] [Indexed: 12/20/2022] Open
Abstract
Chimeric antigen receptor (CAR) T cell therapy is a potent new treatment option for relapsed or refractory hematologic malignancies. As the monitoring of CAR T cell kinetics can provide insights into the activity of the therapy, appropriate CAR T cell detection methods are essential. Here, we report on the comprehensive validation of a flow cytometric assay for peripheral blood CD19 CAR T cell detection. Further, a retrospective analysis (n = 30) of CAR T cell and B cell levels over time has been performed, and CAR T cell phenotypes have been characterized. Serial dilution experiments demonstrated precise and linear quantification down to 0.05% of T cells or 22 CAR T cell events. The calculated detection limit at 13 events was confirmed with CAR T cell negative control samples. Inter-method comparison with real-time PCR showed appreciable correlation. Stability testing revealed diminished CAR T cell values already one day after sample collection. While we found long-term CAR T cell detectability and B cell aplasia in most patients (12/17), some patients (5/17) experienced B cell recovery. In three of these patients the coexistence of CAR T cells and regenerating B cells was observed. Repeat CAR T cell infusions led to detectable but limited re-expansions. Comparison of CAR T cell subsets with their counterparts among all T cells showed a significantly higher percentage of effector memory T cells and a significantly lower percentage of naïve T cells and T EMRA cells among CAR T cells. In conclusion, flow cytometric CAR T cell detection is a reliable method to monitor CAR T cells if measurements start without delay and sufficient T cell counts are given.
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Affiliation(s)
- Andreas Peinelt
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Melanie Bremm
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Hermann Kreyenberg
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Claudia Cappel
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Julia Banisharif-Dehkordi
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Stephanie Erben
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Eva Rettinger
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Andrea Jarisch
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Roland Meisel
- Division of Pediatric Stem Cell Therapy, Department of Pediatric Oncology, Hematology and Clinical Immunology, Medical Faculty, Heinrich-Heine-University, Duesseldorf, Germany
| | - Paul-Gerhardt Schlegel
- Department of Pediatric Hematology and Oncology, University Hospital Würzburg, Würzburg, Germany
| | - Olaf Beck
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Gesine Bug
- Hematology/Oncology, Department of Internal Medicine, University Hospital Frankfurt, Frankfurt, Germany
| | - Jan-Henning Klusmann
- Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Thomas Klingebiel
- Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Sabine Huenecke
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
| | - Peter Bader
- Division of Stem Cell Transplantation and Immunology, Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany.,Department of Children and Adolescents, University Hospital Frankfurt, Frankfurt, Germany
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6
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Schubert ML, Berger C, Kunz A, Schmitt A, Badbaran A, Neuber B, Zeschke S, Wang L, Riecken K, Hückelhoven‑Krauss A, Müller I, Müller‑Tidow C, Dreger P, Kröger N, Ayuk F, Schmitt M, Fehse B. Comparison of single copy gene‑based duplex quantitative PCR and digital droplet PCR for monitoring of expansion of CD19‑directed CAR T cells in treated patients. Int J Oncol 2022; 60:48. [PMID: 35294040 PMCID: PMC8973917 DOI: 10.3892/ijo.2022.5338] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Accepted: 02/11/2022] [Indexed: 11/06/2022] Open
Affiliation(s)
- Maria-Luisa Schubert
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Carolina Berger
- Department of Stem Cell Transplantation, University Medical Centre Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
| | - Alexander Kunz
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Anita Schmitt
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Anita Badbaran
- Department of Stem Cell Transplantation, University Medical Centre Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
| | - Brigitte Neuber
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Silke Zeschke
- Department of Stem Cell Transplantation, University Medical Centre Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
| | - Lei Wang
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Kristoffer Riecken
- Department of Stem Cell Transplantation, University Medical Centre Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
| | - Angela Hückelhoven‑Krauss
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Ingo Müller
- Department of Pediatric Hematology and Oncology, University Medical Centre Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
| | - Carsten Müller‑Tidow
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Peter Dreger
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Nicolaus Kröger
- Department of Stem Cell Transplantation, University Medical Centre Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
| | - Francis Ayuk
- Department of Stem Cell Transplantation, University Medical Centre Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
| | - Michael Schmitt
- Department of Internal Medicine V (Hematology/Oncology/Rheumatology), University Hospital Heidelberg, D‑69120 Heidelberg, Germany
| | - Boris Fehse
- Department of Stem Cell Transplantation, University Medical Centre Hamburg‑Eppendorf, D‑20246 Hamburg, Germany
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7
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Wu Y, Huang Z, Harrison R, Liu L, Zhu L, Situ Y, Wang Y. Engineering CAR T cells for enhanced efficacy and safety. APL Bioeng 2022; 6:011502. [PMID: 35071966 PMCID: PMC8769768 DOI: 10.1063/5.0073746] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2021] [Accepted: 12/22/2021] [Indexed: 01/18/2023] Open
Abstract
Despite its success in treating hematologic malignancies, chimeric antigen receptor (CAR) T cell therapy faces two major challenges which hinder its broader applications: the limited effectiveness against solid tumors and the nonspecific toxicities. To address these concerns, researchers have used synthetic biology approaches to develop optimization strategies. In this review, we discuss recent improvements on the CAR and other non-CAR molecules aimed to enhance CAR T cell efficacy and safety. We also highlight the development of different types of inducible CAR T cells that can be controlled by environmental cues and/or external stimuli. These advancements are bringing CAR T therapy one step closer to safer and wider applications, especially for solid tumors.
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Affiliation(s)
- Yiqian Wu
- Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Ziliang Huang
- Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Reed Harrison
- Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Longwei Liu
- Institute of Engineering in Medicine, University of California, San Diego, La Jolla, California 92093, USA
| | - Linshan Zhu
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, USA
| | - Yinglin Situ
- Department of Bioengineering, University of California, San Diego, La Jolla, California 92093, USA
| | - Yingxiao Wang
- Authors to whom correspondence should be addressed: and
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8
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HSCT with Mismatched Unrelated Donors (MMUD): A Comparison of Different Platforms for GvHD Prophylaxis. TRANSPLANTOLOGY 2022. [DOI: 10.3390/transplantology3010006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
HSCT from an unrelated HLA-mismatched donor (MMUD) is one of the alternatives where an HLA-matched donor is not found. The aim of this study was to compare GvHD prophylaxis with anti-thymocyte globulin (ATG) vs. post-transplant cyclophosphamide (PT-Cy). Thirty-nine adult patients were uniformly treated with rabbit ATG-Cy-A-MTX and peripheral blood stem cell (PBSC) and 40 adult patients with PT-Cy-MMF-tacrolimus and PBSC. This retrospective study was registered at ClinicalTrials.gov NCT04598789. Three-year overall survival was 42% vs. 64% for ATG and PT-Cy (p < 0.0005), three-year treatment-related mortality (TRM) was 36% vs. 8% (p = 0.0033) and the three-year relapse incidence (RI) was 15% vs. 28% (p = NS), respectively. The incidences of day-100 GvHD graded II–IV and III–IV were 39% vs. 7% (p = 0.0006) and 11% vs. 0% (p = 0.04), respectively, whereas the three-year cGvHD incidences were 48% vs. 13% (p = 0.0005), respectively. We were able to show how PT-Cy can reduce the incidence of GvHDs and TRM in adults, but relapse remains an issue.
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9
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Bister A, Ibach T, Haist C, Smorra D, Roellecke K, Wagenmann M, Scheckenbach K, Gattermann N, Wiek C, Hanenberg H. A novel CD34-derived hinge for rapid and efficient detection and enrichment of CAR T cells. Mol Ther Oncolytics 2021; 23:534-546. [PMID: 34901395 PMCID: PMC8640169 DOI: 10.1016/j.omto.2021.11.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 11/08/2021] [Indexed: 11/03/2022] Open
Abstract
Immunotherapy including chimeric antigen receptor (CAR) T cell therapy has revolutionized modern cancer therapy and has achieved remarkable remission and survival rates for several malignancies with historically dismal outcomes. The hinge of the CAR connects the antigen binding to the transmembrane domain and can be exploited to confer features to CAR T cells including additional stimulation, targeted elimination or detection and enrichment of the genetically modified cells. For establishing a novel hinge derived from human CD34, we systematically tested CD34 fragments of different lengths, all containing the binding site of the QBend-10 monoclonal antibody, in a FMC63-based CD19 CAR lentiviral construct. A final construct of 99 amino acids called C6 proved to be the best candidate for flow cytometry-based detection of CAR T cells and >95% enrichment of genetically modified T cells on MACS columns. The C6 hinge was functionally indistinguishable from the commonly used CD8α hinge in vitro as well as in in vivo experiments in NSG mice. We also showed that the C6 hinge can be used for a variety of different CARs and mediates high killing efficacy without unspecific activation by target antigen-negative cells, thus making C6 ideally suited as a universal hinge for CARs for clinical applications.
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Affiliation(s)
- Arthur Bister
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
- Department of Pediatrics III, University Children's Hospital, University of Duisburg-Essen, Hufelandstrasse 55, 45147 Essen, Germany
| | - Tabea Ibach
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Corinna Haist
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
- Department of Pediatrics III, University Children's Hospital, University of Duisburg-Essen, Hufelandstrasse 55, 45147 Essen, Germany
| | - Denise Smorra
- Department of Pediatrics III, University Children's Hospital, University of Duisburg-Essen, Hufelandstrasse 55, 45147 Essen, Germany
| | - Katharina Roellecke
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Martin Wagenmann
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Kathrin Scheckenbach
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Norbert Gattermann
- Department of Hematology, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Constanze Wiek
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
| | - Helmut Hanenberg
- Department of Otorhinolaryngology, Head & Neck Surgery, Heinrich Heine University, 40225 Düsseldorf, Germany
- Department of Pediatrics III, University Children's Hospital, University of Duisburg-Essen, Hufelandstrasse 55, 45147 Essen, Germany
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10
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Krejcik J, Barnkob MB, Nyvold CG, Larsen TS, Barington T, Abildgaard N. Harnessing the Immune System to Fight Multiple Myeloma. Cancers (Basel) 2021; 13:4546. [PMID: 34572773 PMCID: PMC8467095 DOI: 10.3390/cancers13184546] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 09/03/2021] [Accepted: 09/06/2021] [Indexed: 12/14/2022] Open
Abstract
Multiple myeloma (MM) is a heterogeneous plasma cell malignancy differing substantially in clinical behavior, prognosis, and response to treatment. With the advent of novel therapies, many patients achieve long-lasting remissions, but some experience aggressive and treatment refractory relapses. So far, MM is considered incurable. Myeloma pathogenesis can broadly be explained by two interacting mechanisms, intraclonal evolution of cancer cells and development of an immunosuppressive tumor microenvironment. Failures in isotype class switching and somatic hypermutations result in the neoplastic transformation typical of MM and other B cell malignancies. Interestingly, although genetic alterations occur and evolve over time, they are also present in premalignant stages, which never progress to MM, suggesting that genetic mutations are necessary but not sufficient for myeloma transformation. Changes in composition and function of the immune cells are associated with loss of effective immune surveillance, which might represent another mechanism driving malignant transformation. During the last decade, the traditional view on myeloma treatment has changed dramatically. It is increasingly evident that treatment strategies solely based on targeting intrinsic properties of myeloma cells are insufficient. Lately, approaches that redirect the cells of the otherwise suppressed immune system to take control over myeloma have emerged. Evidence of utility of this principle was initially established by the observation of the graft-versus-myeloma effect in allogeneic stem cell-transplanted patients. A variety of new strategies to harness both innate and antigen-specific immunity against MM have recently been developed and intensively tested in clinical trials. This review aims to give readers a basic understanding of how the immune system can be engaged to treat MM, to summarize the main immunotherapeutic modalities, their current role in clinical care, and future prospects.
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Affiliation(s)
- Jakub Krejcik
- Centre for Cellular Immunotherapy of Haematological Cancer Odense (CITCO), Odense University Hospital, 5000 Odense, Denmark; (J.K.); (M.B.B.); (C.G.N.); (T.S.L.); (T.B.)
- Department of Haematology, Odense University Hospital, 5000 Odense, Denmark
- Haematology Research Unit, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Mike Bogetofte Barnkob
- Centre for Cellular Immunotherapy of Haematological Cancer Odense (CITCO), Odense University Hospital, 5000 Odense, Denmark; (J.K.); (M.B.B.); (C.G.N.); (T.S.L.); (T.B.)
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
| | - Charlotte Guldborg Nyvold
- Centre for Cellular Immunotherapy of Haematological Cancer Odense (CITCO), Odense University Hospital, 5000 Odense, Denmark; (J.K.); (M.B.B.); (C.G.N.); (T.S.L.); (T.B.)
- Haematology Research Unit, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
- Haematology-Pathology Research Laboratory, Research Unit for Haematology and Research Unit for Pathology, University of Southern Denmark and Odense University Hospital, 5000 Odense, Denmark
| | - Thomas Stauffer Larsen
- Centre for Cellular Immunotherapy of Haematological Cancer Odense (CITCO), Odense University Hospital, 5000 Odense, Denmark; (J.K.); (M.B.B.); (C.G.N.); (T.S.L.); (T.B.)
- Department of Haematology, Odense University Hospital, 5000 Odense, Denmark
- Haematology Research Unit, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
| | - Torben Barington
- Centre for Cellular Immunotherapy of Haematological Cancer Odense (CITCO), Odense University Hospital, 5000 Odense, Denmark; (J.K.); (M.B.B.); (C.G.N.); (T.S.L.); (T.B.)
- Department of Clinical Immunology, Odense University Hospital, 5000 Odense, Denmark
| | - Niels Abildgaard
- Centre for Cellular Immunotherapy of Haematological Cancer Odense (CITCO), Odense University Hospital, 5000 Odense, Denmark; (J.K.); (M.B.B.); (C.G.N.); (T.S.L.); (T.B.)
- Department of Haematology, Odense University Hospital, 5000 Odense, Denmark
- Haematology Research Unit, Department of Clinical Research, University of Southern Denmark, 5000 Odense, Denmark
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11
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Laurent E, Sieber A, Salzer B, Wachernig A, Seigner J, Lehner M, Geyeregger R, Kratzer B, Jäger U, Kunert R, Pickl WF, Traxlmayr MW. Directed Evolution of Stabilized Monomeric CD19 for Monovalent CAR Interaction Studies and Monitoring of CAR-T Cell Patients. ACS Synth Biol 2021; 10:1184-1198. [PMID: 33843201 PMCID: PMC8155657 DOI: 10.1021/acssynbio.1c00010] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
CD19 is among the most relevant targets in cancer immunotherapy. However, its extracellular domain (ECD) is prone to aggregation and misfolding, representing a major obstacle for the development and analysis of CD19-targeted therapeutics. Here, we engineered stabilized CD19-ECD (termed SuperFolder) variants, which also showed improved expression rates and, in contrast to the wild type protein, they could be efficiently purified in their monomeric forms. Despite being considerably more stable, these engineered mutants largely preserved the wild type sequence (>98.8%). We demonstrate that the variant SF05 enabled the determination of the monovalent affinity between CD19 and a clinically approved FMC63-based CAR, as well as monitoring and phenotypic characterization of CD19-directed CAR-T cells in the blood of lymphoma patients. We anticipate that the SuperFolder mutants generated in this study will be highly valuable tools for a range of applications in basic immunology and CD19-targeted cancer immunotherapy.
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Affiliation(s)
- Elisabeth Laurent
- Department of Biotechnology and BOKU Core Facility Biomolecular and Cellular Analysis, BOKU - University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Anna Sieber
- Department of Biotechnology, BOKU - University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Benjamin Salzer
- St. Anna Children’s Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - Anna Wachernig
- Department of Biotechnology, BOKU - University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Jacqueline Seigner
- Department of Chemistry, BOKU - University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Manfred Lehner
- St. Anna Children’s Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - René Geyeregger
- St. Anna Children’s Cancer Research Institute, Zimmermannplatz 10, 1090 Vienna, Austria
| | - Bernhard Kratzer
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Lazarettgasse 19, 1090 Vienna, Austria
| | - Ulrich Jäger
- Department of Internal Medicine, Division of Hematology and Hemostaseology, Medical University of Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
| | - Renate Kunert
- Department of Biotechnology, BOKU - University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
| | - Winfried F. Pickl
- Institute of Immunology, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Lazarettgasse 19, 1090 Vienna, Austria
| | - Michael W. Traxlmayr
- Department of Chemistry, BOKU - University of Natural Resources and Life Sciences, Muthgasse 18, 1190 Vienna, Austria
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12
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Dholaria B, Savani BN, Huang XJ, Nagler A, Perales MA, Mohty M. The evolving role of allogeneic haematopoietic cell transplantation in the era of chimaeric antigen receptor T-cell therapy. Br J Haematol 2021; 193:1060-1075. [PMID: 33928630 DOI: 10.1111/bjh.17460] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Accepted: 03/15/2021] [Indexed: 01/01/2023]
Abstract
Chimaeric antigen receptor T-cell (CAR T) therapy has revolutionized the management of many haematological malignancies. It is associated with impressive disease responses in relapsed or refractory high-grade B-cell non-Hodgkin lymphoma (B-NHL) and acute lymphoblastic leukaemia (B-ALL) with durable remissions in a subset of patients. Historically, haematopoietic cell transplantation (HCT) has been the standard consolidation strategy for many of these patients who are now being treated with CAR T. Relapses are frequent after CD19 CAR T therapy in B-ALL and consolidation with allogeneic HCT (allo-HCT) may improve survival of patients with high-risk disease. There appears to be a clear difference in B-ALL outcomes between paediatric and adult patients, with the latter having a much higher risk of relapse after CAR T therapy. Late relapses are infrequent in patients with B-NHL and consolidation with allo-HCT may not be needed in patients who achieve a complete remission after CAR T therapy. Future registry-based and prospective studies will hopefully provide the needed data in the future to risk-stratify the recipients of CAR T therapy. Meanwhile, we provide guidance on patient selection and practical issues with performing allo-HCT after CAR T therapy.
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Affiliation(s)
| | - Bipin N Savani
- Vanderbilt University Medical Center, Nashville, TN, USA
| | - Xiao-Jun Huang
- Peking University Institute of Hematology, Beijing, China
| | - Arnon Nagler
- Chaim Sheba Medical Center, Tel Hashomer, Israel, ALWP Office Hôpital Saint-Antoine, Paris, France.,EBMT ALWP Office Hôpital Saint-Antoine, Paris, France
| | - Miguel-Angel Perales
- Adult Bone Marrow Transplant Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Mohamad Mohty
- EBMT ALWP Office Hôpital Saint-Antoine, Paris, France.,Service d'Hématologie Clinique et Thérapie Cellulaire, Hôpital Saint-Antoine, AP-HP, Sorbonne University, INSERM, UMRs 938, Paris, France
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13
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Schmid C, Kuball J, Bug G. Defining the Role of Donor Lymphocyte Infusion in High-Risk Hematologic Malignancies. J Clin Oncol 2021; 39:397-418. [PMID: 33434060 DOI: 10.1200/jco.20.01719] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Affiliation(s)
- Christoph Schmid
- Department of Hematology and Oncology, Augsburg University Hospital, Augsburg, Germany
| | - Jürgen Kuball
- Department of Hematology and Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Gesine Bug
- Department of Medicine 2, Goethe University, Frankfurt am Main, Germany
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14
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Zhang M, Huang H. How to Combine the Two Landmark Treatment Methods-Allogeneic Hematopoietic Stem Cell Transplantation and Chimeric Antigen Receptor T Cell Therapy Together to Cure High-Risk B Cell Acute Lymphoblastic Leukemia? Front Immunol 2020; 11:611710. [PMID: 33384696 PMCID: PMC7770154 DOI: 10.3389/fimmu.2020.611710] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Accepted: 11/17/2020] [Indexed: 12/11/2022] Open
Abstract
Allogeneic hematopoietic stem cell transplantation (allo-HSCT) has made tremendous progress in the last few decades and is increasingly being used worldwide. The success of haploidentical HSCT has made it possible to have "a donor for everyone". Patients who received transplantation in remission may have a favorable outcome, while those who were transplanted in advanced stages of disease have a poor prognosis. Although chimeric antigen receptor T (CAR-T) cell therapy is currently a milestone in the immunotherapy of relapsed or refractory (R/R) B cell acute lymphoblastic leukemia (B-ALL) and has demonstrated high remission rates in patients previously treated in multiple lines, the relatively high relapse rate remains a barrier to CAR-T cell therapy becoming an excellent cure option. Therefore, combining these two approaches (allo-HSCT and CAR-T cell therapy) is an attractive area of research to further improve the prognosis of R/R B-ALL. In this review, we will discuss the current clinical practices of combining allo-HSCT with CAR-T cell therapy based on available data, including CAR-T cells as a bridge to allo-HSCT for R/R B-ALL and CAR-T cell infusion for post-transplant relapse. We will further explore not only other possible ways to combine the two approaches, including CAR-T cell therapy to clear minimal residual disease peri-transplantation and incorporation of CAR technology to treat graft-versus-host disease, but also the potential of CAR-T cells as a part of allo-HSCT.
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Affiliation(s)
- Mingming Zhang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Cellular Immunotherapy, Hangzhou, China
| | - He Huang
- Bone Marrow Transplantation Center, The First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Institute of Hematology, Zhejiang University, Hangzhou, China.,Zhejiang Engineering Laboratory for Stem Cell and Cellular Immunotherapy, Hangzhou, China
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