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Sun Z, Gu C, Wang X, Shang A, Quan W, Wu J, Ji P, Yao Y, Liu W, Li D. A novel bivalent anti-c-MET/PD-1 bispecific antibody exhibits potent cytotoxicity against c-MET/PD-L1-positive colorectal cancer. Invest New Drugs 2023; 41:737-750. [PMID: 37646958 DOI: 10.1007/s10637-023-01381-4] [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: 04/18/2023] [Accepted: 07/04/2023] [Indexed: 09/01/2023]
Abstract
Previously, we generated a novel bispecific antibody (BsAb) simultaneously targeting both c-MET and PD-1 (PDCD1), which can bridge T cells and c-MET positive tumor cells. However, the specific mechanisms and antitumor activities of the BsAb against c-MET/PD-L1 (CD274) positive colorectal cancer (CRC) is not completely understood. In this study, in addition to the tumor intrinsic mechanism investigation with molecular biology assay in vitro, a humanized mouse model was used to evaluate antitumor activity of the BsAb in vivo. The BsAb could inhibit c-MET/PD-L1+ CRC cell migration and show strong antitumor activity against HCT116 tumors in mice, potentially by inducing the degradation of c-MET protein in a dose and time-dependent manner. The BsAb could suppress the phosphorylation of c-MET downstream proteins GRB2-associated-binding protein 1 (Gab1) and focal adhesion kinase (FAK). Considering the tumor extrinsic mechanism, the BsAb may promote phagocytosis of macrophage. Furthermore, the level of plasma exosomal-c-MET/PD-L1 is able to distinguish CRC patients from healthy controls. In summary, the BsAb exhibited potent anti-tumor activities by two distinguished mechanisms: inhibition of c-MET signal transduction and promotion of macrophage-mediated phagocytosis. Our BsAb may provide a novel therapeutic agent for patients with c-MET/PD-L1+ CRC, and the status of exosomal-c-MET/PD-L1 can serve as a biomarker to predict responsiveness to treatment of our BsAb.
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Affiliation(s)
- Z Sun
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - C Gu
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - X Wang
- Department of Pharmacy, Putuo People's Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - A Shang
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
- Department of Laboratory Medicine, The Second People's Hospital of Lianyungang, Lianyungang, 222006, China
| | - W Quan
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - J Wu
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - P Ji
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - Y Yao
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China
| | - W Liu
- Department of General Surgery, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China.
| | - D Li
- Department of Laboratory Medicine, Shanghai Tongji Hospital, School of Medicine, Tongji University, Shanghai, 200065, China.
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Heidari F, Madadi S, Alizadeh N, Alimardani MH, Safari A, Armand MH, Pishgahzadeh E, Soleimani M. The potential of monoclonal antibodies for colorectal cancer therapy. Med Oncol 2023; 40:273. [PMID: 37603117 DOI: 10.1007/s12032-023-02151-1] [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: 05/13/2023] [Accepted: 08/05/2023] [Indexed: 08/22/2023]
Abstract
Conventional chemotherapy has significant limitations for colorectal cancer (CRC) treatment, especially those who have developed metastatic recurrence CRC. A growing number of studies have investigated the potential use of monoclonal antibodies (mAbs) for CRC therapy. mAbs showing clinical benefits for CRC, making the treatment more selective with lower side effects without significant immunogenicity. In addition, recent advancements in antibody engineering strategies and the development of bifunctional or even trifunctional drugs have helped to overcome heterogeneity as the main challenge in cancer treatment. The current review discusses advances in applying mAbs for CRC therapy alone, combined, or with small molecules.
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Affiliation(s)
- Fatemeh Heidari
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Soheil Madadi
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Neda Alizadeh
- Anesthesia and Critical Care Department, Hamadan University of Medical Sciences, Hamadan, Iran
| | - Mohammad Hossein Alimardani
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Armin Safari
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Mohammad Hossein Armand
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Elahe Pishgahzadeh
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran
| | - Meysam Soleimani
- Department of Pharmaceutical Biotechnology, School of Pharmacy, Hamadan University of Medical Sciences, Shahid Fahmide Blvd, 6517838678, Hamadan, Iran.
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A CD19-Anti-ErbB2 scFv Engager Protein Enables CD19-Specific CAR T Cells to Eradicate ErbB2 + Solid Cancer. Cells 2023; 12:cells12020248. [PMID: 36672182 PMCID: PMC9856536 DOI: 10.3390/cells12020248] [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: 11/11/2022] [Revised: 12/05/2022] [Accepted: 12/30/2022] [Indexed: 01/11/2023] Open
Abstract
The efficacy of CD19-specific CAR T cells in the treatment of leukemia/lymphoma relies, at least in part, on the unique properties of the particular CAR and the presence of healthy B cells that enhance the target cell lysis and cytokine secretion through repetitive stimulation. Here, we report to apply the same CAR to target solid tumors, such as ErbB2+ carcinoma. CD19 CAR T cells are redirected towards the ErbB2+ cells by a fusion protein that is composed of the herceptin-derived anti-ErbB2 scFv 4D5 linked to the CD19 exodomain. The CD19-4D5scFv engager enabled CD19 CAR T cells to recognize the ErbB2+ cancer cells and to suppress the ErbB2+ tumor growth. The primary killing capacity by the ErbB2-redirected CD19 CAR T cells was as efficient as by the ErbB2 CAR T cells, however, adding CD19+ B cells furthermore reinforced the activation of the CD19 CAR T cells, thereby improving the anti-tumor activities. The ErbB2-redirected CD19 CAR T cells, moreover, showed a 100-fold superior selectivity in targeting cancer cells versus healthy fibroblasts, which was not the case for the ErbB2 CAR T cells. The data demonstrate that the CD19 CAR T cells can be high-jacked by a CD19-scFv engager protein to attack specifically solid cancer, thereby expanding their application beyond the B cell malignancies.
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Wei J, Yang Y, Wang G, Liu M. Current landscape and future directions of bispecific antibodies in cancer immunotherapy. Front Immunol 2022; 13:1035276. [PMID: 36389699 PMCID: PMC9650279 DOI: 10.3389/fimmu.2022.1035276] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2022] [Accepted: 10/14/2022] [Indexed: 07/31/2023] Open
Abstract
Recent advances in cancer immunotherapy using monoclonal antibodies have dramatically revolutionized the therapeutic strategy against advanced malignancies, inspiring the exploration of various types of therapeutic antibodies. Bispecific antibodies (BsAbs) are recombinant molecules containing two different antigens or epitopes identifying binding domains. Bispecific antibody-based tumor immunotherapy has gained broad potential in preclinical and clinical investigations in a variety of tumor types following regulatory approval of newly developed technologies involving bispecific and multispecific antibodies. Meanwhile, a series of challenges such as antibody immunogenicity, tumor heterogeneity, low response rate, treatment resistance, and systemic adverse effects hinder the application of BsAbs. In this review, we provide insights into the various architecture of BsAbs, focus on BsAbs' alternative different mechanisms of action and clinical progression, and discuss relevant approaches to overcome existing challenges in BsAbs clinical application.
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Affiliation(s)
- Jing Wei
- Gastric Cancer Center/Cancer Center, West China Hospital, Sichuan University, Chengdu, China
| | - Yueyao Yang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Gang Wang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - Ming Liu
- Gastric Cancer Center/Cancer Center, West China Hospital, Sichuan University, Chengdu, China
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Shin HG, Yang HR, Yoon A, Lee S. Bispecific Antibody-Based Immune-Cell Engagers and Their Emerging Therapeutic Targets in Cancer Immunotherapy. Int J Mol Sci 2022; 23:5686. [PMID: 35628495 PMCID: PMC9146966 DOI: 10.3390/ijms23105686] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 05/16/2022] [Accepted: 05/17/2022] [Indexed: 12/16/2022] Open
Abstract
Cancer is the second leading cause of death worldwide after cardiovascular diseases. Harnessing the power of immune cells is a promising strategy to improve the antitumor effect of cancer immunotherapy. Recent progress in recombinant DNA technology and antibody engineering has ushered in a new era of bispecific antibody (bsAb)-based immune-cell engagers (ICEs), including T- and natural-killer-cell engagers. Since the first approval of blinatumomab by the United States Food and Drug Administration (US FDA), various bsAb-based ICEs have been developed for the effective treatment of patients with cancer. Simultaneously, several potential therapeutic targets of bsAb-based ICEs have been identified in various cancers. Therefore, this review focused on not only highlighting the action mechanism, design and structure, and status of bsAb-based ICEs in clinical development and their approval by the US FDA for human malignancy treatment, but also on summarizing the currently known and emerging therapeutic targets in cancer. This review provides insights into practical considerations for developing next-generation ICEs.
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Affiliation(s)
- Ha Gyeong Shin
- Department of Biopharmaceutical Chemistry, College of Science and Technology, Kookmin University, Seoul 02707, Korea; (H.G.S.); (H.R.Y.)
| | - Ha Rim Yang
- Department of Biopharmaceutical Chemistry, College of Science and Technology, Kookmin University, Seoul 02707, Korea; (H.G.S.); (H.R.Y.)
| | - Aerin Yoon
- R&D Division, GC Biopharma, Yongin 16924, Korea
| | - Sukmook Lee
- Department of Biopharmaceutical Chemistry, College of Science and Technology, Kookmin University, Seoul 02707, Korea; (H.G.S.); (H.R.Y.)
- Biopharmaceutical Chemistry Major, School of Applied Chemistry, Kookmin University, Seoul 02707, Korea
- Antibody Research Institute, Kookmin University, Seoul 02707, Korea
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6
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Blanco B, Domínguez-Alonso C, Alvarez-Vallina L. Bispecific Immunomodulatory Antibodies for Cancer Immunotherapy. Clin Cancer Res 2021; 27:5457-5464. [PMID: 34108185 PMCID: PMC9306338 DOI: 10.1158/1078-0432.ccr-20-3770] [Citation(s) in RCA: 53] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/25/2021] [Accepted: 05/21/2021] [Indexed: 01/07/2023]
Abstract
The recent advances in the field of immuno-oncology have dramatically changed the therapeutic strategy against advanced malignancies. Bispecific antibody-based immunotherapies have gained momentum in preclinical and clinical investigations following the regulatory approval of the T cell-redirecting antibody blinatumomab. In this review, we focus on emerging and novel mechanisms of action of bispecific antibodies interacting with immune cells with at least one of their arms to regulate the activity of the immune system by redirecting and/or reactivating effector cells toward tumor cells. These molecules, here referred to as bispecific immunomodulatory antibodies, have the potential to improve clinical efficacy and safety profile and are envisioned as a second wave of cancer immunotherapies. Currently, there are more than 50 bispecific antibodies under clinical development for a range of indications, with promising signs of therapeutic activity. We also discuss two approaches for in vivo secretion, direct gene delivery, and infusion of ex vivo gene-modified cells, which may become instrumental for the clinical application of next-generation bispecific immunomodulatory antibodies.
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Affiliation(s)
- Belén Blanco
- Cancer Immunotherapy Unit (UNICA), Department of Immunology, Hospital Universitario 12 de Octubre, Madrid, Spain.,Immuno-Oncology and Immunotherapy Group, Instituto de Investigación Sanitaria 12 de Octubre (imas12), Madrid, Spain
| | - Carmen Domínguez-Alonso
- Cancer Immunotherapy Unit (UNICA), Department of Immunology, Hospital Universitario 12 de Octubre, Madrid, Spain.,Immuno-Oncology and Immunotherapy Group, Instituto de Investigación Sanitaria 12 de Octubre (imas12), Madrid, Spain
| | - Luis Alvarez-Vallina
- Cancer Immunotherapy Unit (UNICA), Department of Immunology, Hospital Universitario 12 de Octubre, Madrid, Spain.,Immuno-Oncology and Immunotherapy Group, Instituto de Investigación Sanitaria 12 de Octubre (imas12), Madrid, Spain.,Corresponding Author: Luis Alvarez-Vallina, Cancer Immunotherapy Unit, Hospital Universitario 12 de Octubre, Madrid, 28041, Spain. E-mail:
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7
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Balibegloo M, Rezaei N. Development and clinical application of bispecific antibody in the treatment of colorectal cancer. Expert Rev Clin Immunol 2020; 16:689-709. [PMID: 32536227 DOI: 10.1080/1744666x.2020.1783249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
INTRODUCTION Treatment of colorectal cancer as one of the most commonly diagnosed and a frequent cause of cancer-related deaths is of great challenges in health-related issues. AREAS COVERED Immunotherapy is the fourth pillar of cancer treatment which provides more novel therapeutic options with expanding investigational potentials. One of the modalities in immunotherapy is the use of bispecific antibodies. Despite demonstrating many promising roles, it still needs more advanced studies to identify the actual pros and cons. In this review, the application of bispecific antibody in the treatment of colorectal cancer has been explained, based on preclinical and clinical studies. The literature search was conducted mainly through PubMed in June and September 2019. EXPERT OPINION Bispecific antibody is in its early stages in colorectal cancer treatment, requiring modern technologies in manufacturing, better biomarkers and more specific target antigens, more studies on individual genetic variations, and conducting later phase clinical trials and systematic reviews to achieve better survival benefits.
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Affiliation(s)
- Maryam Balibegloo
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran.,Cancer Immunology Project (CIP), Universal Scientific Education & Research Network (USERN) , Tehran, Iran
| | - Nima Rezaei
- Research Center for Immunodeficiencies, Children's Medical Center, Tehran University of Medical Sciences , Tehran, Iran.,Department of Immunology, School of Medicine, Tehran University of Medical Sciences , Tehran, Iran.,Network of Immunity in Infection, Malignancy and Autoimmunity (NIIMA), Universal Scientific Education & Research Network (USERN) , Tehran, Iran
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8
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Bispecific Antibodies and Antibody-Drug Conjugates for Cancer Therapy: Technological Considerations. Biomolecules 2020; 10:biom10030360. [PMID: 32111076 PMCID: PMC7175114 DOI: 10.3390/biom10030360] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 02/20/2020] [Accepted: 02/23/2020] [Indexed: 01/07/2023] Open
Abstract
The ability of monoclonal antibodies to specifically bind a target antigen and neutralize or stimulate its activity is the basis for the rapid growth and development of the therapeutic antibody field. In recent years, traditional immunoglobulin antibodies have been further engineered for better efficacy and safety, and technological developments in the field enabled the design and production of engineered antibodies capable of mediating therapeutic functions hitherto unattainable by conventional antibody formats. Representative of this newer generation of therapeutic antibody formats are bispecific antibodies and antibody–drug conjugates, each with several approved drugs and dozens more in the clinical development phase. In this review, the technological principles and challenges of bispecific antibodies and antibody–drug conjugates are discussed, with emphasis on clinically validated formats but also including recent developments in the fields, many of which are expected to significantly augment the current therapeutic arsenal against cancer and other diseases with unmet medical needs.
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Kholodenko RV, Kalinovsky DV, Doronin II, Ponomarev ED, Kholodenko IV. Antibody Fragments as Potential Biopharmaceuticals for Cancer Therapy: Success and Limitations. Curr Med Chem 2019; 26:396-426. [DOI: 10.2174/0929867324666170817152554] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Revised: 07/17/2017] [Accepted: 07/24/2017] [Indexed: 12/23/2022]
Abstract
Monoclonal antibodies (mAbs) are an important class of therapeutic agents approved for the therapy of many types of malignancies. However, in certain cases applications of conventional mAbs have several limitations in anticancer immunotherapy. These limitations include insufficient efficacy and adverse effects. The antigen-binding fragments of antibodies have a considerable potential to overcome the disadvantages of conventional mAbs, such as poor penetration into solid tumors and Fc-mediated bystander activation of the immune system. Fragments of antibodies retain antigen specificity and part of functional properties of conventional mAbs and at the same time have much better penetration into the tumors and a greatly reduced level of adverse effects. Recent advantages in antibody engineering allowed to produce different types of antibody fragments with improved structure and properties for efficient elimination of tumor cells. These molecules opened up new perspectives for anticancer therapy. Here, we will overview the structural features of the various types of antibody fragments and their applications for anticancer therapy as separate molecules and as part of complex conjugates or structures. Mechanisms of antitumor action of antibody fragments as well as their advantages and disadvantages for clinical application will be discussed in this review.
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Affiliation(s)
- Roman V. Kholodenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho- Maklaya St., 16/10, Moscow 117997, Russian Federation
| | - Daniel V. Kalinovsky
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho- Maklaya St., 16/10, Moscow 117997, Russian Federation
| | - Igor I. Doronin
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho- Maklaya St., 16/10, Moscow 117997, Russian Federation
| | - Eugene D. Ponomarev
- School of Biomedical Sciences, Faculty of Medicine and Brain, The Chinese University of Hong Kong, Shatin NT, Hong Kong
| | - Irina V. Kholodenko
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Miklukho- Maklaya St., 16/10, Moscow 117997, Russian Federation
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Abstract
Bispecific antibodies that recruit and redirect T cells to attack tumor cells have tremendous potential for the treatment of various malignancies. In general, this class of therapeutics, known as CD3 bispecifics, promotes tumor cell killing by cross-linking a CD3 component of the T cell receptor complex with a tumor-associated antigen on the surface of the target cell. Importantly, this mechanism does not rely on a cognate interaction between the T cell receptor and a peptide:HLA complex, thereby circumventing HLA (human leukocyte antigen) restriction. Hence, CD3 bispecifics may find a key role in addressing tumors with low neoantigen content and/or low inflammation, and this class of therapeutics may productively combine with checkpoint blockade. A wide array of formats and optimization approaches has been developed, and a wave of CD3 bispecifics is proceeding into human clinical trials for a range of indications, with promising signs of therapeutic activity.
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Recent advances in the development of novel protein scaffolds based therapeutics. Int J Biol Macromol 2017; 102:630-641. [DOI: 10.1016/j.ijbiomac.2017.04.045] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Revised: 04/10/2017] [Accepted: 04/11/2017] [Indexed: 12/21/2022]
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12
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Koch J, Tesar M. Recombinant Antibodies to Arm Cytotoxic Lymphocytes in Cancer Immunotherapy. Transfus Med Hemother 2017; 44:337-350. [PMID: 29070979 PMCID: PMC5649249 DOI: 10.1159/000479981] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2017] [Accepted: 08/01/2017] [Indexed: 12/18/2022] Open
Abstract
Immunotherapy has the potential to support and expand the body's own armamentarium of immune effector functions, which have been circumvented during malignant transformation and establishment of cancer and is presently considered to be the most promising treatment option for cancer patients. Recombinant antibody technologies have led to a multitude of novel antibody formats, which are in clinical development and hold great promise for future therapies. Among these formats, bispecific antibodies are extremely versatile due to their high efficacy to recruit and activate anti-tumoral immune effector cells, their excellent safety profile, and the opportunity for use in combination with cellular therapies. This review article summarizes the latest developments in cancer immunotherapy using immuno-engagers for recruiting T cells and NK cells to the tumor site. In addition to antibody formats, malignant cell targets, and immune cell targets, opportunities for combination therapies, including check point inhibitors, cytokines and adoptive transfer of immune cells, will be summarized and discussed.
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Affiliation(s)
- Joachim Koch
- Affimed GmbH, Technologiepark, Heidelberg, Germany
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Thakur A, Lum LG. "NextGen" Biologics: Bispecific Antibodies and Emerging Clinical Results. Expert Opin Biol Ther 2016; 16:675-88. [PMID: 26848610 DOI: 10.1517/14712598.2016.1150996] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Bispecific antibodies (BsAb) are emerging as a novel approach for dual targeting strategies. Two bispecific antibodies are approved for therapy and >30 are in clinical development. The first generation of BsAb were produced by chemical cross-linking or hybridoma technology; with the recent advent of genetic and protein engineering technologies numerous formats of bispecific antibodies have emerged using either the fragments of IgG or whole IgG molecules. Further areas of development include dual blockade of different disease pathways, diagnosis and imaging. AREAS COVERED Biologics, including bi- or multi-specific antibodies and T cell-based approaches are rapidly changing the landscape of cancer therapeutics. New engineering platforms for bi- or multi-specific antibodies and scaffolds offer improved efficacy and reduced toxicities over IgG-based monoclonal antibodies. Preclinical and clinical studies using different formats of BsAbs are described in this review using PubMed as a literature search tool. EXPERT OPINION A comprehensive presentation of preclinical data and clinical trials evaluating the various formats of BsAbs indicate their safety and efficacy. However, a vast opportunity to fine tune physical properties and functional activity of biologics to improve the stability, engagement of cytotoxic CD8 T cells and multi-antigen targeting strategy through protein engineering holds a greater therapeutic potential.
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Affiliation(s)
- Archana Thakur
- a Department of Oncology , Wayne State University and Karmanos Cancer Institute , Detroit , MI , USA
| | - Lawrence G Lum
- a Department of Oncology , Wayne State University and Karmanos Cancer Institute , Detroit , MI , USA.,b Department of Medicine , Wayne State University and Karmanos Cancer Institute , Detroit , MI , USA.,c Department of Pediatrics , Wayne State University and Karmanos Cancer Institute , Detroit , MI , USA.,d Department of Immunology and Microbiology , Wayne State University and Karmanos Cancer Institute , Detroit , MI , USA
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