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Reusch U, Harrington KH, Gudgeon CJ, Fucek I, Ellwanger K, Weichel M, Knackmuss SHJ, Zhukovsky EA, Fox JA, Kunkel LA, Guenot J, Walter RB. Characterization of CD33/CD3 Tetravalent Bispecific Tandem Diabodies (TandAbs) for the Treatment of Acute Myeloid Leukemia. Clin Cancer Res 2016; 22:5829-5838. [PMID: 27189165 DOI: 10.1158/1078-0432.ccr-16-0350] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2016] [Revised: 04/28/2016] [Accepted: 04/29/2016] [Indexed: 11/16/2022]
Abstract
PURPOSE Randomized studies with gemtuzumab ozogamicin have validated CD33 as a target for antigen-specific immunotherapy of acute myelogenous leukemia (AML). Here, we investigated the potential of CD33/CD3-directed tandem diabodies (TandAbs) as novel treatment approach for AML. These tetravalent bispecific antibodies provide two binding sites for each antigen to maintain the avidity of a bivalent antibody and have a molecular weight exceeding the renal clearance threshold, thus offering a longer half-life compared to smaller antibody constructs. EXPERIMENTAL DESIGN We constructed a series of TandAbs composed of anti-CD33 and anti-CD3 variable domains of diverse binding affinities and profiled their functional properties in CD33+ human leukemia cell lines, xenograft models, and AML patient samples. RESULTS Our studies demonstrated that several CD33/CD3 TandAbs could induce potent, dose-dependent cytolysis of CD33+ AML cell lines. This effect was modulated by the effector-to-target cell ratio and strictly required the presence of T cells. Activation and proliferation of T cells and maximal AML cell cytolysis correlated with high avidity to both CD33 and CD3. High-avidity TandAbs were broadly active in primary specimens from patients with newly diagnosed or relapsed/refractory AML in vitro, with cytotoxic properties independent of CD33 receptor density and cytogenetic risk. Tumor growth delay and inhibition were observed in both prophylactic and established HL-60 xenograft models in immunodeficient mice. CONCLUSIONS Our data show high efficacy of CD33/CD3 TandAbs in various preclinical models of human AML. Together, these findings support further study of CD33/CD3 TandAbs as novel immunotherapeutics for patients with AML. Clin Cancer Res; 22(23); 5829-38. ©2016 AACR.
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Affiliation(s)
- Uwe Reusch
- Affimed GmbH, Biomunex Pharmaceuticals, Paris, France
| | - Kimberly H Harrington
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Chelsea J Gudgeon
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington
| | - Ivica Fucek
- Affimed GmbH, Biomunex Pharmaceuticals, Paris, France
| | | | | | | | - Eugene A Zhukovsky
- Affimed GmbH, Biomunex Pharmaceuticals, Paris, France.,Biomunex Pharmaceuticals, 96 bis Boulevard Raspail, 75006 Paris, France
| | - Judith A Fox
- Amphivena Therapeutics, Inc., South San Francisco, California
| | - Lori A Kunkel
- Amphivena Therapeutics, Inc., South San Francisco, California
| | | | - Roland B Walter
- Clinical Research Division, Fred Hutchinson Cancer Research Center, Seattle, Washington.,Division of Hematology/Department of Medicine, University of Washington, Seattle, Washington.,Department of Epidemiology, University of Washington, Seattle, Washington
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102
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Neri D, Sondel PM. Immunocytokines for cancer treatment: past, present and future. Curr Opin Immunol 2016; 40:96-102. [PMID: 27060634 DOI: 10.1016/j.coi.2016.03.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2016] [Revised: 03/15/2016] [Accepted: 03/15/2016] [Indexed: 12/11/2022]
Abstract
Immunocytokines are antibody-cytokine fusion proteins, with the potential to preferentially localize on tumor lesions and to activate anticancer immunity at the site of disease. Various tumor targets (e.g., cell membrane antigens and extracellular matrix components) and antibody formats (e.g., intact IgG and antibody fragments) have been considered for immunocytokine development and some products have advanced to clinical trials. In this review, we present relevant concepts and strategies for the design and use of anticancer immunocytokine products. In addition, we discuss emerging strategies for the pharmaceutical development and clinical application of this promising class of biopharmaceuticals.
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Affiliation(s)
- Dario Neri
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of Technology (ETH Zürich), Vladimir-Prelog-Weg 4, CH-8093 Zürich, Switzerland.
| | - Paul M Sondel
- Departments of Pediatrics, Human Oncology and Genetics, and UW Carbone Cancer Center, University of Wisconsin, Madison, WI, USA.
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103
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Wu J, Zhang M, Liu D. Acalabrutinib (ACP-196): a selective second-generation BTK inhibitor. J Hematol Oncol 2016; 9:21. [PMID: 26957112 PMCID: PMC4784459 DOI: 10.1186/s13045-016-0250-9] [Citation(s) in RCA: 159] [Impact Index Per Article: 19.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2016] [Accepted: 03/01/2016] [Indexed: 12/11/2022] Open
Abstract
More and more targeted agents become available for B cell malignancies with increasing precision and potency. The first-in-class Bruton's tyrosine kinase (BTK) inhibitor, ibrutinib, has been in clinical use for the treatment of chronic lymphocytic leukemia, mantle cell lymphoma, and Waldenstrom's macroglobulinemia. More selective BTK inhibitors (ACP-196, ONO/GS-4059, BGB-3111, CC-292) are being explored. Acalabrutinib (ACP-196) is a novel irreversible second-generation BTK inhibitor that was shown to be more potent and selective than ibrutinib. This review summarized the preclinical research and clinical data of acalabrutinib.
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Affiliation(s)
- Jingjing Wu
- Department of Oncology, The first Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Mingzhi Zhang
- Department of Oncology, The first Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Delong Liu
- Department of Oncology, The first Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China.
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104
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Bispecific antibodies and CARs: generalized immunotherapeutics harnessing T cell redirection. Curr Opin Immunol 2016; 40:24-35. [PMID: 26963133 DOI: 10.1016/j.coi.2016.02.006] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2016] [Revised: 02/17/2016] [Accepted: 02/19/2016] [Indexed: 12/31/2022]
Abstract
To realize the full potential of cancer immunotherapy, the latest generation immunotherapeutics are designed to harness the potent tumor-killing capacity of T cells. Thus, to mobilize T cells, new optimized bispecific antibody (BsAb) designs, enabling efficient polyclonal redirection of cytotoxic activity through binding to CD3 and a Tumor Associated Antigen (TAA) and refined genetically modified T cells have recently expanded the arsenal of available options for cancer treatment. This review presents the current understanding of the parameters crucial to the design of optimal T cell redirecting BsAb and chimeric antigen receptor (CAR)-modified T cells. However, there are additional questions that require thorough elucidation. Both modalities will benefit from design changes that may increase the therapeutic window. One such approach could employ the discrimination afforded by multiple TAA to significantly increase selectivity.
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105
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Taking up Cancer Immunotherapy Challenges: Bispecific Antibodies, the Path Forward? Antibodies (Basel) 2015; 5:antib5010001. [PMID: 31557983 PMCID: PMC6698871 DOI: 10.3390/antib5010001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2015] [Revised: 12/15/2015] [Accepted: 12/18/2015] [Indexed: 02/07/2023] Open
Abstract
As evidenced by the recent approvals of Removab (EU, Trion Pharma) in 2009 and of Blincyto (US, Amgen) in 2014, the high potential of bispecific antibodies in the field of immuno-oncology is eliciting a renewed interest from pharmaceutical companies. Supported by rapid advances in antibody engineering and the development of several technological platforms such as Triomab or bispecific T cell engagers (BiTEs), the “bispecifics” market has increased significantly over the past decade and may occupy a pivotal space in the future. Over 30 bispecific molecules are currently in different stages of clinical trials and more than 70 in preclinical phase. This review focuses on the clinical potential of bispecific antibodies as immune effector cell engagers in the onco-immunotherapy field. We summarize current strategies targeting various immune cells and their clinical interests. Furthermore, perspectives of bispecific antibodies in future clinical developments are addressed.
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106
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Wu J, Fu J, Zhang M, Liu D. Blinatumomab: a bispecific T cell engager (BiTE) antibody against CD19/CD3 for refractory acute lymphoid leukemia. J Hematol Oncol 2015; 8:104. [PMID: 26337639 PMCID: PMC4558758 DOI: 10.1186/s13045-015-0195-4] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 08/04/2015] [Indexed: 11/11/2022] Open
Abstract
Targeted therapy has been the forefront of cancer treatment. Cancer immunotherapy is the most recent focus. In addition, novel immunotherapeutics targeting B cell receptor signaling (e.g., ibrutinib), T cell receptor ( e.g., CART19), and NK cells (e.g., AFM13) are being developed. This review summarized the new development in blinatumomab (MT103/MEDI-538), a first-in-class bispecific T engager (BiTE) antibody against CD19/CD3 in patients with relapsed/refractory precursor B cell acute lymphoid leukemia.
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Affiliation(s)
- Jingjing Wu
- Department of Oncology, The first Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jiaping Fu
- Department of Hematology, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, China
| | - Mingzhi Zhang
- Department of Oncology, The first Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Delong Liu
- Department of Oncology, The first Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China. .,Division of Hematology & Oncology, New York Medical College, Valhalla, NY, 10595, USA.
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107
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Wu J, Fu J, Zhang M, Liu D. AFM13: a first-in-class tetravalent bispecific anti-CD30/CD16A antibody for NK cell-mediated immunotherapy. J Hematol Oncol 2015; 8:96. [PMID: 26231785 PMCID: PMC4522136 DOI: 10.1186/s13045-015-0188-3] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2015] [Accepted: 07/16/2015] [Indexed: 01/13/2023] Open
Abstract
Monoclonal antibodies against CD20 molecule have been leading the revolution of lymphoma treatment. In addition to monoclonal antibodies against CD20 and CD30, novel agents of immunotherapeutics in clinical development are being developed and are rapidly migrating to clinical application. One area of active development is NK cell activators, such as AFM13. This review will highlight the latest development of AFM13 as the first-in-class tetravalent bispecific anti-CD30/CD16A antibody for NK cell-mediated immunotherapy.
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Affiliation(s)
- Jingjing Wu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Jiaping Fu
- Department of Hematology, Shaoxing People's Hospital, Shaoxing, Zhejiang Province, China
| | - Mingzhi Zhang
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China
| | - Delong Liu
- Department of Oncology, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, China. .,Division of Hematology & Oncology, New York Medical College, Valhalla, NY, 10595, USA.
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108
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Wang W, Erbe AK, Hank JA, Morris ZS, Sondel PM. NK Cell-Mediated Antibody-Dependent Cellular Cytotoxicity in Cancer Immunotherapy. Front Immunol 2015; 6:368. [PMID: 26284063 PMCID: PMC4515552 DOI: 10.3389/fimmu.2015.00368] [Citation(s) in RCA: 353] [Impact Index Per Article: 39.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2015] [Accepted: 07/06/2015] [Indexed: 12/21/2022] Open
Abstract
Natural killer (NK) cells play a major role in cancer immunotherapies that involve tumor-antigen targeting by monoclonal antibodies (mAbs). NK cells express a variety of activating and inhibitory receptors that serve to regulate the function and activity of the cells. In the context of targeting cells, NK cells can be "specifically activated" through certain Fc receptors that are expressed on their cell surface. NK cells can express FcγRIIIA and/or FcγRIIC, which can bind to the Fc portion of immunoglobulins, transmitting activating signals within NK cells. Once activated through Fc receptors by antibodies bound to target cells, NK cells are able to lyse target cells without priming, and secrete cytokines like interferon gamma to recruit adaptive immune cells. This antibody-dependent cell-mediated cytotoxicity (ADCC) of tumor cells is utilized in the treatment of various cancers overexpressing unique antigens, such as neuroblastoma, breast cancer, B cell lymphoma, and others. NK cells also express a family of receptors called killer immunoglobulin-like receptors (KIRs), which regulate the function and response of NK cells toward target cells through their interaction with their cognate ligands that are expressed on tumor cells. Genetic polymorphisms in KIR and KIR-ligands, as well as FcγRs may influence NK cell responsiveness in conjunction with mAb immunotherapies. This review focuses on current therapeutic mAbs, different strategies to augment the anti-tumor efficacy of ADCC, and genotypic factors that may influence patient responses to antibody-dependent immunotherapies.
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Affiliation(s)
- Wei Wang
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, USA
| | - Amy K. Erbe
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, USA
| | - Jacquelyn A. Hank
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, USA
| | - Zachary S. Morris
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, USA
| | - Paul M. Sondel
- Department of Human Oncology, University of Wisconsin-Madison, Madison, WI, USA
- Department of Pediatrics, University of Wisconsin-Madison, Madison, WI, USA
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