1
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Wei Y, Li G, Wang Z, Qian K, Zhang S, Zhang L, Lei C, Hu S. Development and characterization of a novel neutralizing scFv vectored immunoprophylaxis against botulinum toxin type A. J Drug Target 2024; 32:213-222. [PMID: 38164940 DOI: 10.1080/1061186x.2023.2301418] [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: 05/17/2023] [Accepted: 10/18/2023] [Indexed: 01/03/2024]
Abstract
Botulinum toxin is a protein toxin secreted by Clostridium botulinum that is strongly neurotoxic. Due to its characteristics of being super toxic, quick acting, and difficult to prevent, the currently reported antiviral studies focusing on monoclonal antibodies have limited effectiveness. Therefore, for the sake of effectively prevention and treatment of botulism and to maintain country biosecurity as well as the health of the population, in this study, we intend to establish a single chain antibody (scFv) targeting the carboxyl terminal binding functional domain of the botulinum neurotoxin heavy chain (BONT/AHc) of botulinum neurotoxin type A, and explore the value of a new passive immune method in antiviral research which based on adeno-associated virus (AAV) mediated vector immunoprophylaxis (VIP) strategy. The scFv small-molecular single-chain antibody sequenced, designed, constructed, expressed and purified by hybridoma has high neutralising activity and affinity level, which can lay a good foundation for the modification and development of antibody engineering drugs. In vivo experiments, AAV-mediated scFv engineering drug has good anti-BONT/A toxin neutralisation ability, has advantages of simple operation, stable expression and good efficacy, and may be one of the effective treatment strategies for long-term prevention and protection of BONT/A botulinum neurotoxin.
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Affiliation(s)
- Yongpeng Wei
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai, China
- Hepatic Surgery Department V, The Third Affiliated Hospital, Second Military Medical University, Shanghai, China
| | - Guangyao Li
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai, China
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Zhuo Wang
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai, China
- Hepatic Surgery Department V, The Third Affiliated Hospital, Second Military Medical University, Shanghai, China
| | - Kewen Qian
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai, China
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University (Second Military Medical University), Shanghai, China
| | - Shuyi Zhang
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai, China
| | - Lingling Zhang
- Department of Central Laboratory, Clinical Research Center of Changhai Hospital, Shanghai, China
| | - Changhai Lei
- Department of Biophysics, College of Basic Medical Sciences, Second Military Medical University, Shanghai, China
| | - Shi Hu
- Department of Biomedical Engineering, College of Basic Medical Sciences, Naval Medical University (Second Military Medical University), Shanghai, China
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2
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Wang Z, Li R, Yang G, Wang Y. Cancer stem cell biomarkers and related signalling pathways. J Drug Target 2024; 32:33-44. [PMID: 38095181 DOI: 10.1080/1061186x.2023.2295222] [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: 09/20/2023] [Accepted: 12/10/2023] [Indexed: 12/20/2023]
Abstract
Cancer stem cells (CSCs) represent a distinct subset of neoplastic cells characterised by their heightened capacity for tumorigenesis. These cells are implicated in the facilitation of cancer metastasis, recurrence, and resistance to conventional therapeutic interventions. Extensive scientific research has been devoted to the identification of biomarkers and the elucidation of molecular mechanisms in order to improve targeted therapeutic approaches. Accurate identification of cancer stem cells based on biomarkers can provide a theoretical basis for drug combinations of malignant tumours. Targeted biomarker-based therapies also offer a silver lining for patients with advanced malignancies. This review aims comprehensively to consolidate the latest findings on CSCs biomarkers, targeted agents as well as biomarkers associated signalling pathways in well-established cancer types, thereby contributing to improved prognostic outcomes.
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Affiliation(s)
- Zhe Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
- Department of Infectious Disease, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Rui Li
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
| | - Guilin Yang
- Department of Infectious Disease, The First Affiliated Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Yijin Wang
- School of Medicine, Southern University of Science and Technology, Shenzhen, China
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3
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Goebeler ME, Stuhler G, Bargou R. Bispecific and multispecific antibodies in oncology: opportunities and challenges. Nat Rev Clin Oncol 2024; 21:539-560. [PMID: 38822215 DOI: 10.1038/s41571-024-00905-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/08/2024] [Indexed: 06/02/2024]
Abstract
Research into bispecific antibodies, which are designed to simultaneously bind two antigens or epitopes, has advanced enormously over the past two decades. Owing to advances in protein engineering technologies and considerable preclinical research efforts, bispecific antibodies are constantly being developed and optimized to improve their efficacy and to mitigate toxicity. To date, >200 of these agents, the majority of which are bispecific immune cell engagers, are in either preclinical or clinical evaluation. In this Review, we discuss the role of bispecific antibodies in patients with cancer, including history and development, as well as innovative targeting strategies, clinical applications, and adverse events. We also discuss novel alternative bispecific antibody constructs, such as those targeting two antigens expressed by tumour cells or cells located in the tumour microenvironment. Finally, we consider future research directions in this rapidly evolving field, including innovative antibody engineering strategies, which might enable more effective delivery, overcome resistance, and thus optimize clinical outcomes.
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Affiliation(s)
- Maria-Elisabeth Goebeler
- Comprehensive Cancer Center Mainfranken, University Hospital Würzburg, Würzburg, Germany.
- National Center for Tumour Diseases, NCT WERA, University Hospital Würzburg, Würzburg, Germany.
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany.
| | - Gernot Stuhler
- National Center for Tumour Diseases, NCT WERA, University Hospital Würzburg, Würzburg, Germany
- Department of Internal Medicine II, University Hospital Würzburg, Würzburg, Germany
| | - Ralf Bargou
- Comprehensive Cancer Center Mainfranken, University Hospital Würzburg, Würzburg, Germany
- National Center for Tumour Diseases, NCT WERA, University Hospital Würzburg, Würzburg, Germany
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4
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Rolin C, Zimmer J, Seguin-Devaux C. Bridging the gap with multispecific immune cell engagers in cancer and infectious diseases. Cell Mol Immunol 2024; 21:643-661. [PMID: 38789528 DOI: 10.1038/s41423-024-01176-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 04/23/2024] [Indexed: 05/26/2024] Open
Abstract
By binding to multiple antigens simultaneously, multispecific antibodies are expected to substantially improve both the activity and long-term efficacy of antibody-based immunotherapy. Immune cell engagers, a subclass of antibody-based constructs, consist of engineered structures designed to bridge immune effector cells to their target, thereby redirecting the immune response toward the tumor cells or infected cells. The increasing number of recent clinical trials evaluating immune cell engagers reflects the important role of these molecules in new therapeutic approaches for cancer and infections. In this review, we discuss how different immune cell types (T and natural killer lymphocytes, as well as myeloid cells) can be bound by immune cell engagers in immunotherapy for cancer and infectious diseases. Furthermore, we explore the preclinical and clinical advancements of these constructs, and we discuss the challenges in translating the current knowledge from cancer to the virology field. Finally, we speculate on the promising future directions that immune cell engagers may take in cancer treatment and antiviral therapy.
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Affiliation(s)
- Camille Rolin
- Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354, Esch-Sur-Alzette, Luxembourg.
- University of Luxembourg, 2 Place de l'Université, L-4365, Esch-sur-Alzette, Luxembourg.
| | - Jacques Zimmer
- Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354, Esch-Sur-Alzette, Luxembourg
| | - Carole Seguin-Devaux
- Department of Infection and Immunity, Luxembourg Institute of Health, 29 Rue Henri Koch, L-4354, Esch-Sur-Alzette, Luxembourg
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5
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Singh S, Kachhawaha K, Singh SK. Comprehensive approaches to preclinical evaluation of monoclonal antibodies and their next-generation derivatives. Biochem Pharmacol 2024; 225:116303. [PMID: 38797272 DOI: 10.1016/j.bcp.2024.116303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2023] [Revised: 05/03/2024] [Accepted: 05/17/2024] [Indexed: 05/29/2024]
Abstract
Biotherapeutics hold great promise for the treatment of several diseases and offer innovative possibilities for new treatments that target previously unaddressed medical needs. Despite successful transitions from preclinical to clinical stages and regulatory approval, there are instances where adverse reactions arise, resulting in product withdrawals. As a result, it is essential to conduct thorough evaluations of safety and effectiveness on an individual basis. This article explores current practices, challenges, and future approaches in conducting comprehensive preclinical assessments to ensure the safety and efficacy of biotherapeutics including monoclonal antibodies, toxin-conjugates, bispecific antibodies, single-chain antibodies, Fc-engineered antibodies, antibody mimetics, and siRNA-antibody/peptide conjugates.
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Affiliation(s)
- Santanu Singh
- Laboratory of Engineered Therapeutics, School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Kajal Kachhawaha
- Laboratory of Engineered Therapeutics, School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India
| | - Sumit K Singh
- Laboratory of Engineered Therapeutics, School of Biochemical Engineering, Indian Institute of Technology (Banaras Hindu University), Varanasi, India.
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6
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Géraud A, Hueso T, Laparra A, Bige N, Ouali K, Cauquil C, Stoclin A, Danlos FX, Hollebecque A, Ribrag V, Gazzah A, Goldschmidt V, Baldini C, Suzzoni S, Bahleda R, Besse B, Barlesi F, Lambotte O, Massard C, Marabelle A, Castilla-Llorente C, Champiat S, Michot JM. Reactions and adverse events induced by T-cell engagers as anti-cancer immunotherapies, a comprehensive review. Eur J Cancer 2024; 205:114075. [PMID: 38733717 DOI: 10.1016/j.ejca.2024.114075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/14/2024] [Accepted: 04/17/2024] [Indexed: 05/13/2024]
Abstract
T-cell engagers (TCE) are cancer immunotherapies that have recently demonstrated meaningful benefit for patients with hematological malignancies and solid tumors. The anticipated widespread use of T cell engagers poses implementation challenges and highlights the need for guidance to anticipate, mitigate, and manage adverse events. By mobilizing T-cells directly at the contact of tumor cells, TCE mount an obligatory and immediate anti-tumor immune response that could result in diverse reactions and adverse events. Cytokine release syndrome (CRS) is the most common reaction and is largely confined to the first drug administrations during step-up dosage. Cytokine release syndrome should be distinguished from infusion related reaction by clinical symptoms, timing to occurrence, pathophysiological aspects, and clinical management. Other common reactions and adverse events with TCE are immune effector Cell-Associated Neurotoxicity Syndrome (ICANS), infections, tumor flare reaction and cytopenias. The toxicity profiles of TCE and CAR-T cells have commonalities and distinctions that we sum-up in this review. As compared with CAR-T cells, TCE are responsible for less frequently severe CRS or ICANS. This review recapitulates terminology, pathophysiology, severity grading system and management of reactions and adverse events related to TCE.
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Affiliation(s)
- Arthur Géraud
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Thomas Hueso
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Ariane Laparra
- Gustave Roussy, Departement Interdisciplinaire d'Organisation des Parcours Patients, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Naike Bige
- Gustave Roussy, Service de réanimation et de soins intensifs, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Kaissa Ouali
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Cécile Cauquil
- Hôpital Universitaire du Kremlin Bicêtre, Service de Neurologie, 94270 Le Kremlin-Bicêtre, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Annabelle Stoclin
- Gustave Roussy, Service de réanimation et de soins intensifs, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - François-Xavier Danlos
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Antoine Hollebecque
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Vincent Ribrag
- Gustave Roussy, Department Hématologie, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Anas Gazzah
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Vincent Goldschmidt
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Capucine Baldini
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Steve Suzzoni
- Gustave Roussy, Department of Pharmacy, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Rastislav Bahleda
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Benjamin Besse
- Gustave Roussy, Department de Médecine Oncologique, 94805 Villejuif, France; Université Paris-Saclay, Gustave Roussy, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Fabrice Barlesi
- Gustave Roussy, Department de Médecine Oncologique, 94805 Villejuif, France; Université Paris-Saclay, Gustave Roussy, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Olivier Lambotte
- Université Paris-Saclay, Gustave Roussy, 94805 Villejuif, France; Hôpital Universitaire du Kremlin Bicêtre, Service de Médecine Interne, 94270 Le Kremlin-Bicêtre, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Christophe Massard
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Université Paris-Saclay, Gustave Roussy, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Aurélien Marabelle
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Cristina Castilla-Llorente
- Gustave Roussy, Department Hématologie, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Stéphane Champiat
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France
| | - Jean-Marie Michot
- Gustave Roussy, Département d'Innovation Thérapeutique et d'Essais Précoces, 94805 Villejuif, France; Gustave Roussy, Department d'Hématologie Clinique, 94805 Villejuif, France.
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7
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Parit S, Manchare A, Gholap AD, Mundhe P, Hatvate N, Rojekar S, Patravale V. Antibody-Drug Conjugates: A promising breakthrough in cancer therapy. Int J Pharm 2024; 659:124211. [PMID: 38750981 DOI: 10.1016/j.ijpharm.2024.124211] [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: 01/09/2024] [Revised: 04/30/2024] [Accepted: 05/06/2024] [Indexed: 06/03/2024]
Abstract
Antibody-drug conjugates (ADCs) provide effective cancer treatment through the selective delivery of cytotoxic payloads to the cancer cells. They offer unparalleled precision and specificity in directing drugs to cancer cells while minimizing off-target effects. Despite several advantages, there is a requirement for innovations in the molecular design of ADC owing to drug resistance, cancer heterogeneity along the adverse effects of treatment. The review critically analyses ADC function mechanisms, unraveling the intricate interplay between antibodies, linkers, and payloads in facilitating targeted drug delivery to cancer cells. The article also highlights notable advancements in antibody engineering, which aid in creating highly selective and potent ADCs. Additionally, the review details significant progress in clinical ADC development with an in-depth examination of pivotal trials and approved formulations. Antibody Drug Conjugates (ADCs) are a ground-breaking approach to targeted drug delivery, especially in cancer treatment. They offer unparalleled precision and specificity in directing drugs to cancer cells while minimizing off-target effects. This review provides a comprehensive examination of the current state of ADC development, covering their design, mechanisms of action, and clinical applications. The article emphasizes the need for greater precision in drug delivery and explains why ADCs are necessary.
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Affiliation(s)
- Swapnali Parit
- Institute of Chemical Technology, Marathwada Campus, Jalna 431203, Maharashtra, India
| | - Ajit Manchare
- Institute of Chemical Technology, Marathwada Campus, Jalna 431203, Maharashtra, India
| | - Amol D Gholap
- Department of Pharmaceutics, St. John Institute of Pharmacy and Research, Palghar 401404, Maharashtra, India
| | - Prashant Mundhe
- Institute of Chemical Technology, Marathwada Campus, Jalna 431203, Maharashtra, India
| | - Navnath Hatvate
- Institute of Chemical Technology, Marathwada Campus, Jalna 431203, Maharashtra, India
| | - Satish Rojekar
- Institute of Chemical Technology, Marathwada Campus, Jalna 431203, Maharashtra, India; Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Vandana Patravale
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai 400019, India.
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8
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Liu Y, Wang C, Chen G, Chen J, Chen W, Lei K, Li J, Pan Y, Li Y, Tang D, Li B, Zhao J, Zeng L. Patient derived cancer organoids model the response to HER2-CD3 bispecific antibody (BsAbHER2) generated from hydroxyapatite gene delivery system. Cancer Lett 2024; 597:217043. [PMID: 38876386 DOI: 10.1016/j.canlet.2024.217043] [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: 02/04/2024] [Revised: 05/13/2024] [Accepted: 06/04/2024] [Indexed: 06/16/2024]
Abstract
HER2-positive cancer is a prevalent subtype of malignancy with poor prognosis, yet current targeted therapies, like Trastuzumab and pyrotinib, have resulted in remission in patients with HER2-positive cancer. This study provides a novel approach for immunotherapy based on a hydroxyapatite (HA) gene delivery system producing a bispecific antibody for HER2-positive cancer treatment. An HA nanocarrier has been synthesized by the classical hydrothermal method. Particularly, the HA-nanoneedle system was able to mediate stable gene expression of minicircle DNA (MC) encoding a humanized anti-CD3/anti-HER2 bispecific antibody (BsAbHER2) in vivo. The produced BsAbs exhibited a potent killing effect not only in HER2-positive cancer cells but also in patient-derived organoids in vitro. This HA-nanoneedle gene delivery system features simple large-scale preparation and clinical applicability. Hence, the HA-nanoneedle gene delivery system combined with minicircle DNA vector encoding BsAbHER2 reported here provides a potential immunotherapy strategy for HER2-positive tumors.
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Affiliation(s)
- Yuhong Liu
- General Surgery, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China; The Biobank, Scientific Research Center, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China
| | - Chen Wang
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China
| | - Guochuang Chen
- Syno Minicircle Biotechnology, Shenzhen, 518055, PR China
| | - Junzong Chen
- General Surgery, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China
| | - Wei Chen
- The Biobank, Scientific Research Center, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China
| | - Kefeng Lei
- General Surgery, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China
| | - Jia Li
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China
| | - Yihang Pan
- The Biobank, Scientific Research Center, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China
| | - You Li
- General Surgery, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China
| | - Di Tang
- General Surgery, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China.
| | - Binbin Li
- Digestive Diseases Center, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China.
| | - Jing Zhao
- General Surgery, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China.
| | - Leli Zeng
- The Biobank, Scientific Research Center, Guangdong Provincial Key Laboratory of Digestive Cancer Research, The Seventh Affiliated Hospital of Sun Yat-Sen University, Shenzhen, 518107, Guangdong, PR China.
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9
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Kopp A, Guan J, Johnston C, Vance S, Legg J, Galson-Holt L, Thurber GM. Design of Crosslinking Antibodies For T-Cell Activation: Experimental and Computational Analysis of PD-1/CD137 Bispecific Agents. AAPS J 2024; 26:68. [PMID: 38862748 DOI: 10.1208/s12248-024-00937-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 05/20/2024] [Indexed: 06/13/2024] Open
Abstract
Bispecific and multispecific agents have become increasingly utilized in cancer treatment and immunotherapy, yet their complex design parameters present a challenge in developing successful therapeutics. Bispecifics that crosslink receptors on two opposing cells can provide specific activation of a receptor only when these cells are in close spatial proximity, such as an immune cell and cancer cell in a tumor. These agents, including T cell activating bispecifics, can avoid off-tumor toxicity through activation only in the tumor microenvironment by utilizing a tumor target to cluster T-cell receptors for a selective costimulatory signal. Here, we investigate a panel of PD-1/CD137 targeted Humabody VH domains to determine the key factors for T cell activation, such as affinity, valency, expression level, domain orientation, and epitope location. Target expression is a dominant factor determining both specificity and potency of T cell activation. Given an intrinsic expression level, the affinity can be tuned to modulate the level of activation and IC50 and achieve specificity between low and high expression levels. Changing the epitope location and linker length showed minor improvements to activation at low expression levels, but increasing the valency for the target decreased activation at all expression levels. By combining non-overlapping epitopes for the target, we achieved higher receptor activation at low expression levels. A kinetic model was able to capture these trends, offering support for the mechanistic interpretation. This work provides a framework to quantify factors for T cell activation by cell-crosslinking bispecific agents and guiding principles for the design of new agents.
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Affiliation(s)
- Anna Kopp
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Rd., Ann Arbor, Michigan, 48109, USA
| | - Jiakun Guan
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Rd., Ann Arbor, Michigan, 48109, USA
| | | | | | | | | | - Greg M Thurber
- Department of Chemical Engineering, University of Michigan, 2800 Plymouth Rd., Ann Arbor, Michigan, 48109, USA.
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, Michigan, 48109, USA.
- Rogel Cancer Center, University of Michigan, Ann Arbor, Michigan, 48109, USA.
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10
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Liu JJ, Pan ZD, Yue YL, Wang SS, Chen J, Jiang H, Zhang BH, Wu MY, Yuan YS, Bian YL, Yin HY, Wang L, Li JY, Gilly J, Xie YQ, Zhu JW. T cell-redirecting antibody for treatment of solid tumors via targeting mesothelin. Acta Pharmacol Sin 2024:10.1038/s41401-024-01316-6. [PMID: 38858494 DOI: 10.1038/s41401-024-01316-6] [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: 02/22/2024] [Accepted: 05/15/2024] [Indexed: 06/12/2024] Open
Abstract
T cell engaging bispecific antibodies (TCBs) have recently become significant in cancer treatment. In this study we developed MSLN490, a novel TCB designed to target mesothelin (MSLN), a glycosylphosphatidylinositol (GPI)-linked glycoprotein highly expressed in various cancers, and evaluated its efficacy against solid tumors. CDR walking and phage display techniques were used to improve affinity of the parental antibody M912, resulting in a pool of antibodies with different affinities to MSLN. From this pool, various bispecific antibodies (BsAbs) were assembled. Notably, MSLN490 with its IgG-[L]-scFv structure displayed remarkable anti-tumor activity against MSLN-expressing tumors (EC50: 0.16 pM in HT-29-hMSLN cells). Furthermore, MSLN490 remained effective even in the presence of non-membrane-anchored MSLN (soluble MSLN). Moreover, the anti-tumor activity of MSLN490 was enhanced when combined with either Atezolizumab or TAA × CD28 BsAbs. Notably, a synergistic effect was observed between MSLN490 and paclitaxel, as paclitaxel disrupted the immunosuppressive microenvironment within solid tumors, enhancing immune cells infiltration and improved anti-tumor efficacy. Overall, MSLN490 exhibits robust anti-tumor activity, resilience to soluble MSLN interference, and enhanced anti-tumor effects when combined with other therapies, offering a promising future for the treatment of a variety of solid tumors. This study provides a strong foundation for further exploration of MSLN490's clinical potential.
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Affiliation(s)
- Jun-Jun Liu
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Zhi-di Pan
- Jecho Institute, Shanghai, 200240, China
| | - Ya-Li Yue
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | | | - Jie Chen
- Jecho Institute, Shanghai, 200240, China
| | - Hua Jiang
- Jecho Laboratories, Inc., Frederick, MD, 21704, USA
- Jecho Biopharmaceuticals Co., Ltd, Tianjin, 300450, China
| | - Bao-Hong Zhang
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Ming-Yuan Wu
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yun-Sheng Yuan
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yan-Lin Bian
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | | | - Lei Wang
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jun-Yan Li
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - John Gilly
- Jecho Biopharmaceuticals Co., Ltd, Tianjin, 300450, China
| | - Yue-Qing Xie
- Jecho Institute, Shanghai, 200240, China.
- Jecho Laboratories, Inc., Frederick, MD, 21704, USA.
| | - Jian-Wei Zhu
- Engineering Research Center of Cell and Therapeutic Antibody, Ministry of Education, School of Pharmacy, Shanghai Jiao Tong University, Shanghai, 200240, China.
- Jecho Institute, Shanghai, 200240, China.
- Jecho Laboratories, Inc., Frederick, MD, 21704, USA.
- Jecho Biopharmaceuticals Co., Ltd, Tianjin, 300450, China.
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11
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Dong Y, Wang J, Chen L, Chen H, Dang S, Li F. Aptamer-based assembly systems for SARS-CoV-2 detection and therapeutics. Chem Soc Rev 2024. [PMID: 38829187 DOI: 10.1039/d3cs00774j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2024]
Abstract
Nucleic acid aptamers are oligonucleotide chains with molecular recognition properties. Compared with antibodies, aptamers show advantages given that they are readily produced via chemical synthesis and elicit minimal immunogenicity in biomedicine applications. Notably, aptamer-encoded nucleic acid assemblies further improve the binding affinity of aptamers with the targets due to their multivalent synergistic interactions. Specially, aptamers can be engineered with special topological arrangements in nucleic acid assemblies, which demonstrate spatial and valence matching towards antigens on viruses, thus showing potential in the detection and therapeutic applications of viruses. This review presents the recent progress on the aptamers explored for SARS-CoV-2 detection and infection treatment, wherein applications of aptamer-based assembly systems are introduced in detail. Screening methods and chemical modification strategies for aptamers are comprehensively summarized, and the types of aptamers employed against different target domains of SARS-CoV-2 are illustrated. The evolution of aptamer-based assembly systems for the detection and neutralization of SARS-CoV-2, as well as the construction principle and characteristics of aptamer-based DNA assemblies are demonstrated. The typically representative works are presented to demonstrate how to assemble aptamers rationally and elaborately for specific applications in SARS-CoV-2 diagnosis and neutralization. Finally, we provide deep insights into the current challenges and future perspectives towards aptamer-based nucleic acid assemblies for virus detection and neutralization in nanomedicine.
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Affiliation(s)
- Yuhang Dong
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Jingping Wang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Ling Chen
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Haonan Chen
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Shuangbo Dang
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
| | - Feng Li
- State Key Laboratory of Chemical Resource Engineering, College of Chemistry, Beijing University of Chemical Technology, Beijing, 100029, P. R. China.
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12
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Qin X, Ning W, Liu H, Liu X, Luo W, Xia N. Stepping forward: T-cell redirecting bispecific antibodies in cancer therapy. Acta Pharm Sin B 2024; 14:2361-2377. [PMID: 38828136 PMCID: PMC11143529 DOI: 10.1016/j.apsb.2024.03.027] [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: 10/29/2023] [Revised: 12/26/2023] [Accepted: 02/28/2024] [Indexed: 06/05/2024] Open
Abstract
T cell-redirecting bispecific antibodies are specifically designed to bind to tumor-associated antigens, thereby engaging with CD3 on the T cell receptor. This linkage between tumor cells and T cells actively triggers T cell activation and initiates targeted killing of the identified tumor cells. These antibodies have emerged as one of the most promising avenues within tumor immunotherapy. However, despite success in treating hematological malignancies, significant advancements in solid tumors have yet to be explored. In this review, we aim to address the critical challenges associated with T cell-redirecting bispecific antibodies and explore novel strategies to overcome these obstacles, with the ultimate goal of expanding the application of this therapy to include solid tumors.
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Affiliation(s)
- Xiaojing Qin
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry–Education Integration in Vaccine Research, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Wenjing Ning
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry–Education Integration in Vaccine Research, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Han Liu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry–Education Integration in Vaccine Research, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Xue Liu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry–Education Integration in Vaccine Research, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Wenxin Luo
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry–Education Integration in Vaccine Research, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
| | - Ningshao Xia
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry–Education Integration in Vaccine Research, the Research Unit of Frontier Technology of Structural Vaccinology of Chinese Academy of Medical Sciences, Xiamen University, Xiamen 361102, China
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13
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Paul S, Konig MF, Pardoll DM, Bettegowda C, Papadopoulos N, Wright KM, Gabelli SB, Ho M, van Elsas A, Zhou S. Cancer therapy with antibodies. Nat Rev Cancer 2024; 24:399-426. [PMID: 38740967 PMCID: PMC11180426 DOI: 10.1038/s41568-024-00690-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/29/2024] [Indexed: 05/16/2024]
Abstract
The greatest challenge in cancer therapy is to eradicate cancer cells with minimal damage to normal cells. Targeted therapy has been developed to meet that challenge, showing a substantially increased therapeutic index compared with conventional cancer therapies. Antibodies are important members of the family of targeted therapeutic agents because of their extraordinarily high specificity to the target antigens. Therapeutic antibodies use a range of mechanisms that directly or indirectly kill the cancer cells. Early antibodies were developed to directly antagonize targets on cancer cells. This was followed by advancements in linker technologies that allowed the production of antibody-drug conjugates (ADCs) that guide cytotoxic payloads to the cancer cells. Improvement in our understanding of the biology of T cells led to the production of immune checkpoint-inhibiting antibodies that indirectly kill the cancer cells through activation of the T cells. Even more recently, bispecific antibodies were synthetically designed to redirect the T cells of a patient to kill the cancer cells. In this Review, we summarize the different approaches used by therapeutic antibodies to target cancer cells. We discuss their mechanisms of action, the structural basis for target specificity, clinical applications and the ongoing research to improve efficacy and reduce toxicity.
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Affiliation(s)
- Suman Paul
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA.
| | - Maximilian F Konig
- Division of Rheumatology, Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Drew M Pardoll
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Chetan Bettegowda
- Department of Neurosurgery, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | | | - Katharine M Wright
- Discovery Chemistry, Merck Research Laboratory, Merck and Co, West Point, PA, USA
| | - Sandra B Gabelli
- Discovery Chemistry, Merck Research Laboratory, Merck and Co, West Point, PA, USA.
| | - Mitchell Ho
- Antibody Engineering Program, Laboratory of Molecular Biology, Center for Cancer Research, National Cancer Institute, Bethesda, MD, USA.
| | | | - Shibin Zhou
- Department of Oncology, Johns Hopkins School of Medicine, Baltimore, MD, USA
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14
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Ray CMP, Yang H, Spangler JB, Mac Gabhann F. Mechanistic computational modeling of monospecific and bispecific antibodies targeting interleukin-6/8 receptors. PLoS Comput Biol 2024; 20:e1012157. [PMID: 38848446 PMCID: PMC11189202 DOI: 10.1371/journal.pcbi.1012157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 06/20/2024] [Accepted: 05/10/2024] [Indexed: 06/09/2024] Open
Abstract
The spread of cancer from organ to organ (metastasis) is responsible for the vast majority of cancer deaths; however, most current anti-cancer drugs are designed to arrest or reverse tumor growth without directly addressing disease spread. It was recently discovered that tumor cell-secreted interleukin-6 (IL-6) and interleukin-8 (IL-8) synergize to enhance cancer metastasis in a cell-density dependent manner, and blockade of the IL-6 and IL-8 receptors (IL-6R and IL-8R) with a novel bispecific antibody, BS1, significantly reduced metastatic burden in multiple preclinical mouse models of cancer. Bispecific antibodies (BsAbs), which combine two different antigen-binding sites into one molecule, are a promising modality for drug development due to their enhanced avidity and dual targeting effects. However, while BsAbs have tremendous therapeutic potential, elucidating the mechanisms underlying their binding and inhibition will be critical for maximizing the efficacy of new BsAb treatments. Here, we describe a quantitative, computational model of the BS1 BsAb, exhibiting how modeling multivalent binding provides key insights into antibody affinity and avidity effects and can guide therapeutic design. We present detailed simulations of the monovalent and bivalent binding interactions between different antibody constructs and the IL-6 and IL-8 receptors to establish how antibody properties and system conditions impact the formation of binary (antibody-receptor) and ternary (receptor-antibody-receptor) complexes. Model results demonstrate how the balance of these complex types drives receptor inhibition, providing important and generalizable predictions for effective therapeutic design.
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Affiliation(s)
- Christina M. P. Ray
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Medical-Scientist Training Program, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Institute for Computational Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
| | - Huilin Yang
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, United States of America
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
| | - Jamie B. Spangler
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland, United States of America
- Translational Tissue Engineering Center, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Sidney Kimmel Cancer Center, Johns Hopkins University, Baltimore, Maryland, United States of America
- Bloomberg Kimmel Institute for Cancer Immunotherapy, Johns Hopkins University, Baltimore, Maryland, United States of America
- Department of Ophthalmology, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America
| | - Feilim Mac Gabhann
- Department of Biomedical Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America
- Institute for Computational Medicine, Johns Hopkins University, Baltimore, Maryland, United States of America
- Institute for Nano Biotechnology (INBT), Johns Hopkins University, Baltimore, Maryland, United States of America
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15
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Lewis KL, Cheah CY. The value of bispecific antibodies in relapsed and refractory DLBCL. Leuk Lymphoma 2024; 65:720-735. [PMID: 38454535 DOI: 10.1080/10428194.2024.2323085] [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: 10/18/2023] [Accepted: 02/19/2024] [Indexed: 03/09/2024]
Abstract
Diffuse large B-cell lymphoma (DLBCL) may be cured with anti-CD20 based chemoimmunotherapy in the majority of cases, however, relapsed/refractory disease occurs in 30-40% patients, and despite significant recent therapeutic advances, continues to represent an unmet clinical need. Bispecific antibodies represent a novel class of therapy currently in development for relapsed/refractory B-cell lymphoma. This review discusses the background clinical need, mechanism of action, and clinical data including efficacy and toxicity for bispecific antibodies in DLBCL, focusing on the most advanced class in development; CD20 targeting T-cell engaging antibodies. Emerging possibilities for future use of bispecific antibodies is also discussed, including novel and cytotoxic combination regimens in relapsed and first-line settings.
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MESH Headings
- Humans
- Antibodies, Bispecific/therapeutic use
- Antibodies, Bispecific/pharmacology
- Lymphoma, Large B-Cell, Diffuse/drug therapy
- Lymphoma, Large B-Cell, Diffuse/immunology
- Drug Resistance, Neoplasm/immunology
- Antineoplastic Agents, Immunological/therapeutic use
- Antineoplastic Agents, Immunological/adverse effects
- Neoplasm Recurrence, Local/immunology
- Neoplasm Recurrence, Local/drug therapy
- Treatment Outcome
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Antineoplastic Combined Chemotherapy Protocols/adverse effects
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Affiliation(s)
- Katharine Louise Lewis
- Department of Haematology, Sir Charles Gairdner Hospital, Nedlands, Australia
- Linear Clinical Research, Nedlands, Australia
- Medical School, Division of Internal Medicine, University of Western Australia, Nedlands, Australia
| | - Chan Yoon Cheah
- Department of Haematology, Sir Charles Gairdner Hospital, Nedlands, Australia
- Linear Clinical Research, Nedlands, Australia
- Medical School, Division of Internal Medicine, University of Western Australia, Nedlands, Australia
- Department of Haematology, Pathwest, QEII, Nedlands, Australia
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16
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Asano R, Takeuchi M, Nakakido M, Ito S, Aikawa C, Yokoyama T, Senoo A, Ueno G, Nagatoishi S, Tanaka Y, Nakagawa I, Tsumoto K. Characterization of a novel format scFv×VHH single-chain biparatopic antibody against metal binding protein MtsA. Protein Sci 2024; 33:e5017. [PMID: 38747382 PMCID: PMC11094767 DOI: 10.1002/pro.5017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2024] [Revised: 04/22/2024] [Accepted: 04/26/2024] [Indexed: 05/19/2024]
Abstract
Biparatopic antibodies (bpAbs) are engineered antibodies that bind to multiple different epitopes within the same antigens. bpAbs comprise diverse formats, including fragment-based formats, and choosing the appropriate molecular format for a desired function against a target molecule is a challenging task. Moreover, optimizing the design of constructs requires selecting appropriate antibody modalities and adjusting linker length for individual bpAbs. Therefore, it is crucial to understand the characteristics of bpAbs at the molecular level. In this study, we first obtained single-chain variable fragments and camelid heavy-chain variable domains targeting distinct epitopes of the metal binding protein MtsA and then developed a novel format single-chain bpAb connecting these fragment antibodies with various linkers. The physicochemical properties, binding activities, complex formation states with antigen, and functions of the bpAb were analyzed using multiple approaches. Notably, we found that the assembly state of the complexes was controlled by a linker and that longer linkers tended to form more compact complexes. These observations provide detailed molecular information that should be considered in the design of bpAbs.
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Affiliation(s)
- Risa Asano
- Department of BioengineeringSchool of Engineering, The University of TokyoTokyoJapan
| | - Miyu Takeuchi
- Department of BioengineeringSchool of Engineering, The University of TokyoTokyoJapan
| | - Makoto Nakakido
- Department of BioengineeringSchool of Engineering, The University of TokyoTokyoJapan
- Department of Chemistry and BiotechnologySchool of Engineering, The University of TokyoTokyoJapan
| | - Sho Ito
- Rigaku Corporation ROD Single Crystal Analysis Group Application LaboratoriesTokyoJapan
| | - Chihiro Aikawa
- Section of Applied Veterinary Sciences, Division of Veterinary Sciences, Department of Veterinary MedicineObihiro University of Agriculture and Veterinary MedicineHokkaidoJapan
| | - Takeshi Yokoyama
- Graduate School of Life Sciences, Tohoku UniversityMiyagiJapan
- The advanced center for innovations in next‐generation medicine (INGEM)Tohoku UniversityMiyagiJapan
| | - Akinobu Senoo
- Department of Chemistry and BiotechnologySchool of Engineering, The University of TokyoTokyoJapan
| | - Go Ueno
- RIKEN SPring‐8 CenterHyogoJapan
| | - Satoru Nagatoishi
- Medical Device Development and Regulation Research CenterSchool of Engineering, The University of TokyoTokyoJapan
| | - Yoshikazu Tanaka
- Graduate School of Life Sciences, Tohoku UniversityMiyagiJapan
- The advanced center for innovations in next‐generation medicine (INGEM)Tohoku UniversityMiyagiJapan
| | - Ichiro Nakagawa
- Department of MicrobiologyGraduate School of Medicine, Kyoto UniversityKyotoJapan
| | - Kouhei Tsumoto
- Department of BioengineeringSchool of Engineering, The University of TokyoTokyoJapan
- Department of Chemistry and BiotechnologySchool of Engineering, The University of TokyoTokyoJapan
- Medical Device Development and Regulation Research CenterSchool of Engineering, The University of TokyoTokyoJapan
- The Institute of Medical Science, The University of TokyoTokyoJapan
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17
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Li X, Eastham J, Giltnane JM, Zou W, Zijlstra A, Tabatsky E, Banchereau R, Chang CW, Nabet BY, Patil NS, Molinero L, Chui S, Harryman M, Lau S, Rangell L, Waumans Y, Kockx M, Orlova D, Koeppen H. Automated tumor immunophenotyping predicts clinical benefit from anti-PD-L1 immunotherapy. J Pathol 2024; 263:190-202. [PMID: 38525811 DOI: 10.1002/path.6274] [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: 07/01/2023] [Revised: 12/22/2023] [Accepted: 02/14/2024] [Indexed: 03/26/2024]
Abstract
Cancer immunotherapy has transformed the clinical approach to patients with malignancies, as profound benefits can be seen in a subset of patients. To identify this subset, biomarker analyses increasingly focus on phenotypic and functional evaluation of the tumor microenvironment to determine if density, spatial distribution, and cellular composition of immune cell infiltrates can provide prognostic and/or predictive information. Attempts have been made to develop standardized methods to evaluate immune infiltrates in the routine assessment of certain tumor types; however, broad adoption of this approach in clinical decision-making is still missing. We developed approaches to categorize solid tumors into 'desert', 'excluded', and 'inflamed' types according to the spatial distribution of CD8+ immune effector cells to determine the prognostic and/or predictive implications of such labels. To overcome the limitations of this subjective approach, we incrementally developed four automated analysis pipelines of increasing granularity and complexity for density and pattern assessment of immune effector cells. We show that categorization based on 'manual' observation is predictive for clinical benefit from anti-programmed death ligand 1 therapy in two large cohorts of patients with non-small cell lung cancer or triple-negative breast cancer. For the automated analysis we demonstrate that a combined approach outperforms individual pipelines and successfully relates spatial features to pathologist-based readouts and the patient's response to therapy. Our findings suggest that tumor immunophenotype generated by automated analysis pipelines should be evaluated further as potential predictive biomarkers for cancer immunotherapy. © 2024 The Pathological Society of Great Britain and Ireland.
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Affiliation(s)
- Xiao Li
- Genentech, South San Francisco, CA, USA
| | | | | | - Wei Zou
- Genentech, South San Francisco, CA, USA
| | | | | | | | | | | | | | | | | | | | - Shari Lau
- Genentech, South San Francisco, CA, USA
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18
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Mehlhaff E, Miller D, Ebben JD, Dobrzhanskyi O, Uboha NV. Targeted Agents in Esophagogastric Cancer Beyond Human Epidermal Growth Factor Receptor-2. Hematol Oncol Clin North Am 2024; 38:659-675. [PMID: 38485551 DOI: 10.1016/j.hoc.2024.02.006] [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] [Indexed: 05/06/2024]
Abstract
Gastroesophageal cancers are highly diverse tumors in terms of their anatomic and molecular characteristics, making drug development challenging. Recent advancements in understanding the molecular profiles of these cancers have led to the identification of several new biomarkers. Ongoing clinical trials are investigating new targeted agents with promising results. CLDN18.2 has emerged as a biomarker with established activity of associated targeted therapies. Other targeted agents, such as bemarituzumab and DKN-01, are under active investigation. As new agents are incorporated into the treatment continuum, the questions of biomarker overlap, tumor heterogeneity, and toxicity management will need to be addressed.
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Affiliation(s)
- Eric Mehlhaff
- Division of Hematology, Medical Oncology and Palliative Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, University of Wisconsin, 600 Highland Avenue, Madison, WI 53792, USA
| | - Devon Miller
- Division of Hematology, Medical Oncology and Palliative Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, University of Wisconsin, 600 Highland Avenue, Madison, WI 53792, USA
| | - Johnathan D Ebben
- Division of Hematology, Medical Oncology and Palliative Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, University of Wisconsin, 600 Highland Avenue, Madison, WI 53792, USA
| | - Oleksii Dobrzhanskyi
- Upper Gastrointestinal Tumors Department, National Cancer Institute, Kyiv, Ukraine
| | - Nataliya V Uboha
- Division of Hematology, Medical Oncology and Palliative Care, Department of Medicine, University of Wisconsin School of Medicine and Public Health, University of Wisconsin, 600 Highland Avenue, Madison, WI 53792, USA; University of Wisconsin, Carbone Cancer Center, Madison, WI, USA.
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19
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Wang Y, Chen J, Zhang S, Jiang H, Zhu J, Jiang G, Liu Y, Zhu Y, Li J. Bispecific Nanobody-Aptamer Conjugates for Enhanced Cancer Therapy in Solid Tumors. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2024; 20:e2308265. [PMID: 38225704 DOI: 10.1002/smll.202308265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 12/30/2023] [Indexed: 01/17/2024]
Abstract
Bispecific antibodies possess exceptional potential as therapeutic agents due to their capacity to bind to two different antigens simultaneously. However, challenges pertain to unsatisfactory stability, manufacturing complexity, and limited tumor penetration hinder their broad applicability. In this study, a versatile technology is presented for the rapid generation of bispecific nanobody-aptamer conjugates with efficient tumor penetration. The approach utilizes microbial transglutaminase (MTGase) and click chemistry to achieve site-specific conjugation of nanobodies and aptamers, which are termed nanotamers. The nanotamers recognize and bind to two types of molecular targets expressed on cancer cells. As a prototype, a bispecific nanotamer is developed that binds both clusters of differentiation 47 (CD47) and mesenchymal epithelial transition receptor (Met) expressed on the tumor cell membrane. This CD47-Met nanotamer demonstrates high affinity and specificity toward tumor cells expressing both targets, exhibits improved receptor functional inhibition through a strong steric hindrance effect. Moreover, its capacity for deep tumor penetration greatly enhances the impact of conventional chemotherapy on antitumor efficacy. The as-developed nanotamer synthesis approach shows promise to customize bispecific molecular probes targeting different cancer types and different therapeutic goals.
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Affiliation(s)
- Ya Wang
- School of Chemistry and Materials, University of Science and Technology of China, Hefei, 230026, China
- Zhejiang Cancer Hospital, The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China
| | - Jie Chen
- School of Chemistry and Materials, University of Science and Technology of China, Hefei, 230026, China
| | - Sen Zhang
- School of Chemistry and Materials, University of Science and Technology of China, Hefei, 230026, China
- Zhejiang Cancer Hospital, The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China
| | - Hang Jiang
- Zhejiang Cancer Hospital, The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China
| | - Jianqing Zhu
- Zhejiang Cancer Hospital, The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China
| | - Guangyi Jiang
- Zhejiang Cancer Hospital, The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China
| | - Yichang Liu
- School of Pharmacy, Nantong University, Nantong, 226019, China
| | - Yingdi Zhu
- Zhejiang Cancer Hospital, The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China
| | - Juan Li
- School of Chemistry and Materials, University of Science and Technology of China, Hefei, 230026, China
- Zhejiang Cancer Hospital, The Key Laboratory of Zhejiang Province for Aptamers and Theranostics, Hangzhou Institute of Medicine (HIM), Chinese Academy of Sciences, Hangzhou, 310022, China
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20
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Rosenkrans ZT, Erbe AK, Clemons NB, Feils AS, Medina-Guevara Y, Jeffery JJ, Barnhart TE, Engle JW, Sondel PM, Hernandez R. Targeting both GD2 and B7-H3 using bispecific antibody improves tumor selectivity for GD2-positive tumors. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.23.595624. [PMID: 38853889 PMCID: PMC11160562 DOI: 10.1101/2024.05.23.595624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Objectives Disialoganglioside 2 (GD2), overexpressed by cancers such as melanoma and neuroblastoma, is a tumor antigen for targeted therapy. The delivery of conventional IgG antibody technologies targeting GD2 is limited clinically by its co-expression on nerves that contributes to toxicity presenting as severe neuropathic pain. To improve the tumor selectivity of current GD2-targeting approaches, a next-generation bispecific antibody targeting GD2 and B7-H3 (CD276) was generated. Methods Differential expression of human B7-H3 (hB7-H3) was transduced into GD2+ B78 murine melanoma cells and confirmed by flow cytometry. We assessed the avidity and selectivity of our GD2-B7-H3 targeting bispecific antibodies (INV34-6, INV33-2, and INV36-6) towards GD2+/hB7-H3- B78 cells relative to GD2+/hB7-H3+ B78 cells using flow cytometry and competition binding assays, comparing results an anti-GD2 antibody (dinutuximab, DINU). The bispecific antibodies, DINU, and a non-targeted bispecific control (bsAb CTRL) were conjugated with deferoxamine for radiolabeling with Zr-89 (t1/2 = 78.4 h). Using positron emission tomography (PET) studies, we evaluated the in vivo avidity and selectivity of the GD2-B7-H3 targeting bispecific compared to bsAb CTRL and DINU using GD2+/hB7-H3+ and GD2+/hB7-H3- B78 tumor models. Results Flow cytometry and competition binding assays showed that INV34-6 bound with high avidity to GD2+/hB7-H3+ B78 cells with high avidity but not GD2+/hB7-H3+ B78 cells. In comparison, no selectivity between cell types was observed for DINU. PET in mice bearing the GD2+/hB7-H3- and GD2+/hB7-H3+ B78 murine tumor showed similar biodistribution in normal tissues for [89Zr]Zr-Df-INV34-6, [89Zr]Zr-Df-bsAb CTRL, and [89Zr]Zr-Df-DINU. Importantly, [89Zr]Zr-Df-INV34-6 tumor uptake was selective to GD2+/hB7-H3+ B78 over GD2+/hB7-H3- B78 tumors, and substantially higher to GD2+/hB7-H3+ B78 than the non-targeted [89Zr]Zr-Df-bsAb CTRL control. [89Zr]Zr-Df-DINU displayed similar uptake in both GD2+ tumor models, with uptake comparable to [89Zr]Zr-Df-INV34-6 in the GD2+/hB7-H3+ B78 model. Conclusion The GD2-B7-H3 targeting bispecific antibodies successfully improved selectivity to cells expressing both antigens. This approach should address the severe toxicities associated with GD2-targeting therapies by reducing off-tumor GD2 binding in nerves. Continued improvements in bispecific antibody technologies will continue to transform the therapeutic biologics landscape.
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Affiliation(s)
- Zachary T. Rosenkrans
- Departments of Medical Physics and Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Amy K. Erbe
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Human Oncology, University of Wisconsin-Madison, Madison, Wisconsin
| | - Nathan B. Clemons
- Departments of Medical Physics and Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | | | - Yadira Medina-Guevara
- Departments of Medical Physics and Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Justin J. Jeffery
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Todd E. Barnhart
- Departments of Medical Physics and Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
| | - Jonathan W. Engle
- Departments of Medical Physics and Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
| | - Paul M. Sondel
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Human Oncology, University of Wisconsin-Madison, Madison, Wisconsin
- Department of Pediatrics, University of Wisconsin-Madison, Madison, Wisconsin
| | - Reinier Hernandez
- Departments of Medical Physics and Radiology, University of Wisconsin-Madison, Madison, Wisconsin, USA
- University of Wisconsin Carbone Cancer Center, University of Wisconsin-Madison, Madison, Wisconsin
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21
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Rezhdo A, Hershman RL, Van Deventer JA. Design, Construction, and Validation of a Yeast-Displayed Chemically Expanded Antibody Library. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.05.29.596443. [PMID: 38853888 PMCID: PMC11160716 DOI: 10.1101/2024.05.29.596443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
In vitro display technologies, exemplified by phage and yeast display, have emerged as powerful platforms for antibody discovery and engineering. However, the identification of antibodies that disrupt target functions beyond binding remains a challenge. In particular, there are very few strategies that support identification and engineering of either protein-based irreversible binders or inhibitory enzyme binders. Expanding the range of chemistries in antibody libraries has the potential to lead to efficient discovery of function-disrupting antibodies. In this work, we describe a yeast display-based platform for the discovery of chemically diversified antibodies. We constructed a billion-member antibody library that supports the presentation of a range of chemistries within antibody variable domains via noncanonical amino acid (ncAA) incorporation and subsequent bioorthogonal click chemistry conjugations. Use of a polyspecific orthogonal translation system enables introduction of chemical groups with various properties, including photo-reactive, proximity-reactive, and click chemistry-enabled functional groups for library screening. We established conjugation conditions that facilitate modification of the full library, demonstrating the feasibility of sorting the full billion-member library in "protein-small molecule hybrid" format in future work. Here, we conducted initial library screens after introducing O-(2-bromoethyl)tyrosine (OBeY), a weakly electrophilic ncAA capable of undergoing proximity-induced crosslinking to a target. Enrichments against donkey IgG and protein tyrosine phosphatase 1B (PTP1B) each led to the identification of several OBeY-substituted clones that bind to the targets of interest. Flow cytometry analysis on the yeast surface confirmed higher retention of binding for OBeY-substituted clones compared to clones substituted with ncAAs lacking electrophilic side chains after denaturation. However, subsequent crosslinking experiments in solution with ncAA-substituted clones yielded inconclusive results, suggesting that weakly reactive OBeY side chain is not sufficient to drive robust crosslinking in the clones isolated here. Nonetheless, this work establishes a multi-modal, chemically expanded antibody library and demonstrates the feasibility of conducting discovery campaigns in chemically expanded format. This versatile platform offers new opportunities for identifying and characterizing antibodies with properties beyond what is accessible with the canonical amino acids, potentially enabling discovery of new classes of reagents, diagnostics, and even therapeutic leads.
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Affiliation(s)
- Arlinda Rezhdo
- Chemical and Biological Engineering Department, Tufts University, Medford, Massachusetts 02155, USA
| | - Rebecca L Hershman
- Chemical and Biological Engineering Department, Tufts University, Medford, Massachusetts 02155, USA
| | - James A Van Deventer
- Chemical and Biological Engineering Department, Tufts University, Medford, Massachusetts 02155, USA
- Biomedical Engineering Department, Tufts University, Medford, Massachusetts 02155, USA
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22
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Lin N, Miyamoto K, Ogawara T, Sakurai S, Kizaka-Kondoh S, Kadonosono T. Epitope binning for multiple antibodies simultaneously using mammalian cell display and DNA sequencing. Commun Biol 2024; 7:652. [PMID: 38806676 PMCID: PMC11133372 DOI: 10.1038/s42003-024-06363-7] [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: 01/08/2024] [Accepted: 05/21/2024] [Indexed: 05/30/2024] Open
Abstract
Epitope binning, an approach for grouping antibodies based on epitope similarities, is a critical step in antibody drug discovery. However, conventional methods are complex, involving individual antibody production. Here, we established Epitope Binning-seq, an epitope binning platform for simultaneously analyzing multiple antibodies. In this system, epitope similarity between the query antibodies (qAbs) displayed on antigen-expressing cells and a fluorescently labeled reference antibody (rAb) targeting a desired epitope is analyzed by flow cytometry. The qAbs with epitope similar to the rAb can be identified by next-generation sequencing analysis of fluorescence-negative cells. Sensitivity and reliability of this system are confirmed using rAbs, pertuzumab and trastuzumab, which target human epidermal growth factor receptor 2. Epitope Binning-seq enables simultaneous epitope evaluation of 14 qAbs at various abundances in libraries, grouping them into respective epitope bins. This versatile platform is applicable to diverse antibodies and antigens, potentially expediting the identification of clinically useful antibodies.
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Affiliation(s)
- Ning Lin
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Kotaro Miyamoto
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Takumi Ogawara
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Saki Sakurai
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Shinae Kizaka-Kondoh
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan
| | - Tetsuya Kadonosono
- School of Life Science and Technology, Tokyo Institute of Technology, Yokohama, 226-8501, Japan.
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23
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Yin N, Li X, Zhang X, Xue S, Cao Y, Niedermann G, Lu Y, Xue J. Development of pharmacological immunoregulatory anti-cancer therapeutics: current mechanistic studies and clinical opportunities. Signal Transduct Target Ther 2024; 9:126. [PMID: 38773064 PMCID: PMC11109181 DOI: 10.1038/s41392-024-01826-z] [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: 10/11/2023] [Revised: 03/25/2024] [Accepted: 03/28/2024] [Indexed: 05/23/2024] Open
Abstract
Immunotherapy represented by anti-PD-(L)1 and anti-CTLA-4 inhibitors has revolutionized cancer treatment, but challenges related to resistance and toxicity still remain. Due to the advancement of immuno-oncology, an increasing number of novel immunoregulatory targets and mechanisms are being revealed, with relevant therapies promising to improve clinical immunotherapy in the foreseeable future. Therefore, comprehending the larger picture is important. In this review, we analyze and summarize the current landscape of preclinical and translational mechanistic research, drug development, and clinical trials that brought about next-generation pharmacological immunoregulatory anti-cancer agents and drug candidates beyond classical immune checkpoint inhibitors. Along with further clarification of cancer immunobiology and advances in antibody engineering, agents targeting additional inhibitory immune checkpoints, including LAG-3, TIM-3, TIGIT, CD47, and B7 family members are becoming an important part of cancer immunotherapy research and discovery, as are structurally and functionally optimized novel anti-PD-(L)1 and anti-CTLA-4 agents and agonists of co-stimulatory molecules of T cells. Exemplified by bispecific T cell engagers, newly emerging bi-specific and multi-specific antibodies targeting immunoregulatory molecules can provide considerable clinical benefits. Next-generation agents also include immune epigenetic drugs and cytokine-based therapeutics. Cell therapies, cancer vaccines, and oncolytic viruses are not covered in this review. This comprehensive review might aid in further development and the fastest possible clinical adoption of effective immuno-oncology modalities for the benefit of patients.
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Affiliation(s)
- Nanhao Yin
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center & State Key Laboratory of Biotherapy, and The National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan, PR China
| | - Xintong Li
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center & State Key Laboratory of Biotherapy, and The National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan, PR China
| | - Xuanwei Zhang
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center & State Key Laboratory of Biotherapy, and The National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan, PR China
| | - Shaolong Xue
- Department of Gynecology and Obstetrics, West China Second University Hospital, Sichuan University, No. 20, Section 3, South Renmin Road, Chengdu, 610041, Sichuan, PR China
| | - Yu Cao
- Department of Emergency Medicine, Laboratory of Emergency Medicine, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan, PR China
- Institute of Disaster Medicine & Institute of Emergency Medicine, Sichuan University, No. 17, Gaopeng Avenue, Chengdu, 610041, Sichuan, PR China
| | - Gabriele Niedermann
- Department of Radiation Oncology, Medical Center-University of Freiburg, Faculty of Medicine, University of Freiburg, German Cancer Consortium (DKTK) Partner Site DKTK-Freiburg, Robert-Koch-Strasse 3, 79106, Freiburg, Germany.
| | - You Lu
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center & State Key Laboratory of Biotherapy, and The National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan, PR China.
- Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, No. 2222, Xinchuan Road, Chengdu, 610041, Sichuan, PR China.
| | - Jianxin Xue
- Division of Thoracic Tumor Multimodality Treatment, Cancer Center & State Key Laboratory of Biotherapy, and The National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, No. 37, Guoxue Lane, Chengdu, 610041, Sichuan, PR China.
- Laboratory of Clinical Cell Therapy, West China Hospital, Sichuan University, No. 2222, Xinchuan Road, Chengdu, 610041, Sichuan, PR China.
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24
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Li L, Nian S, Liu Q, Zhang B, Jimu W, Li C, Huang Z, Hu Q, Huang Y, Yuan Q. Fully human anti-B7-H3 recombinant antibodies inhibited tumor growth by increasing T cell infiltration. Int Immunopharmacol 2024; 132:111926. [PMID: 38552297 DOI: 10.1016/j.intimp.2024.111926] [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: 01/22/2024] [Revised: 03/08/2024] [Accepted: 03/22/2024] [Indexed: 05/01/2024]
Abstract
Mortality due to malignant tumors is one of the major factors affecting the life expectancy of the global population. Therapeutic antibodies are a cutting-edge treatment method for restricting tumor growth. B7-H3 is highly expressed in tumor tissues, but rarely in normal tissues. B7-H3 is closely associated with poor prognosis in patients with tumors. B7-H3 is an important target for antitumor therapy. In this study, the fully human anti-B7H3 single-chain antibodies (scFvs) were isolated and screened from the fully human phage immune library with B7H3 as the target. The antibodies screened from a fully human phage library had low immunogenicity and high affinity, which was more beneficial for clinical application. Leveraging B7-H3 scFvs as a foundation, we constructed two distinct recombinant antibody formats, scFv-Fc and IgG1, characterized by elevated affinity and a prolonged half-life. The results demonstrated that the recombinant antibodies had high specificity and affinity for the B7-H3 antigen and inhibited tumor cell growth by enhancing the ADCC. After treatment with anti-B7H3 recombinant antibody, the number of infiltrating T cells in the tumor increased and the secretion of IFN- γ by infiltrating T cells increased in vivo. Additionally, the use of pleural fluid samples obtained from tumor-afflicted patients revealed the ability of anti-B7-H3 recombinant antibodies to reverse CD8+ T cell exhaustion. In summary, we screened the fully human anti-B7H3 recombinant antibodies with specificity and high affinity that increase immune cell infiltration and IFN-γ secretion, thereby inhibiting tumor cell growth to a certain extent. This finding provides a theoretical basis for the development of therapeutic tumor antibodies and could help promote further development of antibody-based drugs.
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Affiliation(s)
- Lin Li
- The School of Basic Medical Sciences, Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan province 646000, China
| | - Siji Nian
- The School of Basic Medical Sciences, Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan province 646000, China
| | - Qin Liu
- The School of Basic Medical Sciences, Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan province 646000, China
| | - Bo Zhang
- The School of Basic Medical Sciences, Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan province 646000, China
| | - Wulemo Jimu
- The School of Basic Medical Sciences, Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan province 646000, China
| | - Chengwen Li
- The School of Basic Medical Sciences, Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan province 646000, China
| | - Zhanwen Huang
- Institute of nuclear medicine, Southwest Medical University, Department of Blood transfusion, Affiliated Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, 646000, China
| | - Qiaosen Hu
- The School of Basic Medical Sciences, Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan province 646000, China
| | - Yuanshuai Huang
- Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, 646000, China; Department of Blood Transfusion, Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province 646000, China.
| | - Qing Yuan
- The School of Basic Medical Sciences, Public Center of Experimental Technology, Southwest Medical University, Luzhou, Sichuan province 646000, China; Institute of nuclear medicine, Southwest Medical University, Department of Blood transfusion, Affiliated Hospital of Southwest Medical University, Nuclear Medicine and Molecular Imaging Key Laboratory of Sichuan Province, 646000, China.
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25
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Ali FEM, Ibrahim IM, Althagafy HS, Hassanein EHM. Role of immunotherapies and stem cell therapy in the management of liver cancer: A comprehensive review. Int Immunopharmacol 2024; 132:112011. [PMID: 38581991 DOI: 10.1016/j.intimp.2024.112011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2024] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/08/2024]
Abstract
Liver cancer (LC) is the sixth most common disease and the third most common cause of cancer-related mortality. The WHO predicts that more than 1 million deaths will occur from LC by 2030. Hepatocellular carcinoma (HCC) is a common form of primary LC. Today, the management of LC involves multiple disciplines, and multimodal therapy is typically selected on an individual basis, considering the intricate interactions between the patient's overall health, the stage of the tumor, and the degree of underlying liver disease. Currently, the treatment of cancers, including LC, has undergone a paradigm shift in the last ten years because of immuno-oncology. To treat HCC, immune therapy approaches have been developed to enhance or cause the body's natural immune response to specifically target tumor cells. In this context, immune checkpoint pathway inhibitors, engineered cytokines, adoptive cell therapy, immune cells modified with chimeric antigen receptors, and therapeutic cancer vaccines have advanced to clinical trials and offered new hope to cancer patients. The outcomes of these treatments are encouraging. Additionally, treatment using stem cells is a new approach for restoring deteriorated tissues because of their strong differentiation potential and capacity to release cytokines that encourage cell division and the formation of blood vessels. Although there is no proof that stem cell therapy works for many types of cancer, preclinical research on stem cells has shown promise in treating HCC. This review provides a recent update regarding the impact of immunotherapy and stem cells in HCC and promising outcomes.
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Affiliation(s)
- Fares E M Ali
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt; Michael Sayegh, Faculty of Pharmacy, Aqaba University of Technology, Aqaba 77110, Jordan.
| | - Islam M Ibrahim
- Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Hanan S Althagafy
- Department of Biochemistry, Faculty of Science, University of Jeddah, Jeddah, Saudi Arabia
| | - Emad H M Hassanein
- Department of Pharmacology and Toxicology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
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26
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Sankaran PK, Poskute R, Dewis L, Watanabe Y, Wong V, Fernandez LP, Shannon R, Wong L, Shrubsall R, Carman L, Holt A, Lepore G, Mishra R, Sewell L, Gothard M, Cheeks M, Lindo V. Comprehensive Stress Stability Studies Reveal the Prominent Stability of the Liquid-Formulated Biotherapeutic Asymmetric Monovalent Bispecific IgG1 Monoclonal Antibody Format. J Pharm Sci 2024:S0022-3549(24)00158-8. [PMID: 38705464 DOI: 10.1016/j.xphs.2024.04.029] [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: 01/17/2024] [Revised: 04/26/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
The developed asymmetric monovalent bispecific IgG1 or Duet monoclonal antibody (Duet mAb) has two distinct fragment antigen-binding region (Fab) subunits that target two different epitope specificities sequentially or simultaneously. The design features include unique engineered disulfide bridges, knob-into-hole mutations, and kappa and lambda chains to produce Duet mAbs. These make it structurally and functionally complex, so one expects challenging developability linked to instability, degradation of products and pathways, and limited reports available. Here, we have treated the product with different sources of extreme stress over a lengthy period, including varying heat, pH, photo stress, chemical oxidative stress, accelerated stress in physiological conditions, and forced glycation conditions. The effects of different stress conditions on the product were assessed using various analytical characterization tools to measure product-related substances, post-translational modifications (PTMs), structural integrity, higher-order disulfide linkages, and biological activity. The results revealed degradation products and pathways of Duet mAb. A moderate increase in size, charge, and hydrophobic variants, PTMs, including deamidation, oxidation, isomerization, and glycation were observed, with most conditions exhibiting biological activity. In addition, the characterization of fractionated charge variants, including deamidated species, showed satisfactory biological activity. This study demonstrated the prominent stability of the Duet mAb format comparable to most marketed mAbs.
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Affiliation(s)
| | - Ryte Poskute
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Lydia Dewis
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Yasunori Watanabe
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Vanessa Wong
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | | | - Richard Shannon
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Lisa Wong
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Rebecca Shrubsall
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Lee Carman
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Alexander Holt
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Giordana Lepore
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Rahul Mishra
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Laura Sewell
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Matt Gothard
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Matthew Cheeks
- Cell Culture & Fermentation Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Viv Lindo
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK.
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27
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Gu Y, Wang Z, Wang Y. Bispecific antibody drug conjugates: Making 1+1>2. Acta Pharm Sin B 2024; 14:1965-1986. [PMID: 38799638 PMCID: PMC11119582 DOI: 10.1016/j.apsb.2024.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Revised: 01/12/2024] [Accepted: 01/17/2024] [Indexed: 05/29/2024] Open
Abstract
Bispecific antibody‒drug conjugates (BsADCs) represent an innovative therapeutic category amalgamating the merits of antibody‒drug conjugates (ADCs) and bispecific antibodies (BsAbs). Positioned as the next-generation ADC approach, BsADCs hold promise for ameliorating extant clinical challenges associated with ADCs, particularly pertaining to issues such as poor internalization, off-target toxicity, and drug resistance. Presently, ten BsADCs are undergoing clinical trials, and initial findings underscore the imperative for ongoing refinement. This review initially delves into specific design considerations for BsADCs, encompassing target selection, antibody formats, and the linker-payload complex. Subsequent sections delineate the extant progress and challenges encountered by BsADCs, illustrated through pertinent case studies. The amalgamation of BsAbs with ADCs offers a prospective solution to prevailing clinical limitations of ADCs. Nevertheless, the symbiotic interplay among BsAb, linker, and payload necessitates further optimizations and coordination beyond a simplistic "1 + 1" to effectively surmount the extant challenges facing the BsADC domain.
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Affiliation(s)
- Yilin Gu
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhijia Wang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yuxi Wang
- Targeted Tracer Research and Development Laboratory, Institute of Respiratory Health, Frontiers Science Center for Disease-Related Molecular Network, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu 610041, China
- Frontiers Medical Center, Tianfu Jincheng Laboratory, Chengdu 610212, China
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28
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Nakayama I, Qi C, Chen Y, Nakamura Y, Shen L, Shitara K. Claudin 18.2 as a novel therapeutic target. Nat Rev Clin Oncol 2024; 21:354-369. [PMID: 38503878 DOI: 10.1038/s41571-024-00874-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2024] [Indexed: 03/21/2024]
Abstract
Claudin 18.2, a tight-junction molecule predominantly found in the nonmalignant gastric epithelium, becomes accessible on the tumour cell surface during malignant transformation, thereby providing an appealing target for cancer therapy. Data from two phase III trials testing the anti-claudin 18.2 antibody zolbetuximab have established claudin 18.2-positive advanced-stage gastric cancers as an independent therapeutic subset that derives benefit from the addition of this agent to chemotherapy. This development has substantially increased the percentage of patients eligible for targeted therapy. Furthermore, newer treatments, such as high-affinity monoclonal antibodies, bispecific antibodies, chimeric antigen receptor T cells and antibody-drug conjugates capable of bystander killing effects, have shown considerable promise in patients with claudin 18.2-expressing gastric cancers. This new development has resulted from drug developers moving beyond traditional targets, such as driver gene alterations or growth factors. In this Review, we highlight the biological rationale and explore the clinical activity of therapies that target claudin 18.2 in patients with advanced-stage gastric cancer and explore the potential for expansion of claudin 18.2-targeted therapies to patients with other claudin 18.2-positive solid tumours.
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Affiliation(s)
- Izuma Nakayama
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
| | - Changsong Qi
- Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Yang Chen
- Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing, China
| | - Yoshiaki Nakamura
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan
- Translational Research Support Office, National Cancer Center Hospital East, Kashiwa, Japan
- International Research Promotion Office, National Cancer Center Hospital East, Kashiwa, Japan
| | - Lin Shen
- Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing, China.
| | - Kohei Shitara
- Department of Gastroenterology and Gastrointestinal Oncology, National Cancer Center Hospital East, Kashiwa, Japan.
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Gong N, Han X, Xue L, Billingsley MM, Huang X, El-Mayta R, Qin J, Sheppard NC, June CH, Mitchell MJ. Small-molecule-mediated control of the anti-tumour activity and off-tumour toxicity of a supramolecular bispecific T cell engager. Nat Biomed Eng 2024; 8:513-528. [PMID: 38378820 DOI: 10.1038/s41551-023-01147-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Accepted: 10/24/2023] [Indexed: 02/22/2024]
Abstract
The broader clinical use of bispecific T cell engagers for inducing anti-tumour toxicity is hindered by their on-target off-tumour toxicity and the associated neurotoxicity and cytokine-release syndrome. Here we show that the off-tumour toxicity of a supramolecular bispecific T cell engager binding to the T cell co-receptor CD3 and to the human epidermal growth factor receptor 2 on breast tumour cells can be halted by disengaging the T cells from the tumour cells via the infusion of the small-molecule drug amantadine, which disassembles the supramolecular aggregate. In mice bearing human epidermal growth factor receptor 2-expressing tumours and with a human immune system, high intravenous doses of such a 'switchable T cell nanoengager' elicited strong tumour-specific adaptive immune responses that prevented tumour relapse, while the infusion of amantadine restricted off-tumour toxicity, cytokine-release syndrome and neurotoxicity. Supramolecular chemistry may be further leveraged to control the anti-tumour activity and off-tumour toxicity of bispecific antibodies.
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Affiliation(s)
- Ningqiang Gong
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Xuexiang Han
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Lulu Xue
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Xisha Huang
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Rakan El-Mayta
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Jingya Qin
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA
| | - Neil C Sheppard
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Carl H June
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Michael J Mitchell
- Department of Bioengineering, University of Pennsylvania, Philadelphia, PA, USA.
- Center for Cellular Immunotherapies, University of Pennsylvania, Philadelphia, PA, USA.
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Abramson Cancer Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Institute for Immunology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Institute for Regenerative Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA.
- Institute for RNA Innovation, University of Pennsylvania, Philadelphia, PA, USA.
- Center for Precision Engineering for Health, University of Pennsylvania, Philadelphia, PA, USA.
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30
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Zhou S, Zhu M, Wei X, Mu P, Shen L, Wang Y, Wan J, Zhang H, Xia F, Zhang Z. Low-dose radiotherapy synergizes with iRGD-antiCD3-modified T cells by facilitating T cell infiltration. Radiother Oncol 2024; 194:110213. [PMID: 38458258 DOI: 10.1016/j.radonc.2024.110213] [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: 11/13/2023] [Revised: 02/27/2024] [Accepted: 03/03/2024] [Indexed: 03/10/2024]
Abstract
BACKGROUND AND PURPOSE Poor penetration of transferred T cells represents a critical factor impeding the development of adoptive cell therapy in solid tumors. We demonstrated that iRGD-antiCD3 modification promoted both T cell infiltration and activation in our previous work. Interest in low-dose radiotherapy has recently been renewed due to its immuno-stimulatory effects including T cell recruitment. This study aims to explore the synergistic effects between low-dose radiotherapy and iRGD-antiCD3-modified T cells. MATERIALS AND METHODS Flow cytometry was performed to assess the expression of iRGD receptors and chemokines. T cell infiltration was evaluated by immunohistofluorescence and in vivo real-time fluorescence imaging and antitumor effects were investigated by in vivo bioluminescence imaging in the gastric cancer peritoneal metastasis mouse model. RESULTS We found that 2 Gy irradiation upregulated the expression of all three iRGD receptors and T-cell chemokines. The addition of 2 Gy low-dose irradiation boosted the accumulation and penetration of iRGD-antiCD3-modified T cells in peritoneal tumor nodules. Combining 2 Gy low-dose irradiation with iRGD-antiCD3-modified T cells significantly inhibited tumor growth and prolonged survival in the peritoneal metastasis mouse model with a favorable safety profile. CONCLUSION Altogether, we demonstrated that low-dose radiotherapy could improve the antitumor potency of iRGD-antiCD3-modified T cells by promoting T cell infiltration, providing a rationale for exploring low-dose radiotherapy in combination of other adoptive T cell therapies in solid tumors.
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Affiliation(s)
- Shujuan Zhou
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Mei Zhu
- Department of Oncology, Xuzhou Cancer Hospital, Xuzhou 221005, China
| | - Xiao Wei
- Department of Pathology, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210008, China
| | - Peiyuan Mu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Lijun Shen
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Yan Wang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Juefeng Wan
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Hui Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China
| | - Fan Xia
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China.
| | - Zhen Zhang
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai 200032, China; Department of Oncology, Shanghai Medical College, Fudan University, Shanghai 200032, China; Shanghai Clinical Research Center for Radiation Oncology, Shanghai 200032, China; Shanghai Key Laboratory of Radiation Oncology, Shanghai 200032, China.
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Imai M, Colas K, Suga H. Protein Grafting Techniques: From Peptide Epitopes to Lasso-Grafted Neobiologics. Chempluschem 2024:e202400152. [PMID: 38693599 DOI: 10.1002/cplu.202400152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Revised: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/03/2024]
Abstract
Protein engineering techniques have vastly expanded their domain of impact, notably following the success of antibodies. Likewise, smaller peptide therapeutics have carved an increasingly significant niche for themselves in the pharmaceutical landscape. The concept of grafting such peptides onto larger protein scaffolds, thus harvesting the advantages of both, has given rise to a variety of protein engineering strategies that are reviewed herein. We also describe our own "Lasso-Grafting" approach, which combines traditional grafting concepts with mRNA display to streamline the production of multiple grafted drug candidates for virtually any target.
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Affiliation(s)
- Mikio Imai
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kilian Colas
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Hiroaki Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
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32
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Zeng H, Wang W, Zhang L, Lin Z. HER3-targeted therapy: the mechanism of drug resistance and the development of anticancer drugs. CANCER DRUG RESISTANCE (ALHAMBRA, CALIF.) 2024; 7:14. [PMID: 38835349 PMCID: PMC11149107 DOI: 10.20517/cdr.2024.11] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 04/04/2024] [Accepted: 04/23/2024] [Indexed: 06/06/2024]
Abstract
Human epidermal growth factor receptor 3 (HER3), which is part of the HER family, is aberrantly expressed in various human cancers. Since HER3 only has weak tyrosine kinase activity, when HER3 ligand neuregulin 1 (NRG1) or neuregulin 2 (NRG2) appears, activated HER3 contributes to cancer development and drug resistance by forming heterodimers with other receptors, mainly including epidermal growth factor receptor (EGFR) and human epidermal growth factor receptor 2 (HER2). Inhibition of HER3 and its downstream signaling, including PI3K/AKT, MEK/MAPK, JAK/STAT, and Src kinase, is believed to be necessary to conquer drug resistance and improve treatment efficiency. Until now, despite multiple anti-HER3 antibodies undergoing preclinical and clinical studies, none of the HER3-targeted therapies are licensed for utilization in clinical cancer treatment because of their safety and efficacy. Therefore, the development of HER3-targeted drugs possessing safety, tolerability, and sensitivity is crucial for clinical cancer treatment. This review summarizes the progress of the mechanism of HER3 in drug resistance, the HER3-targeted therapies that are conducted in preclinical and clinical trials, and some emerging molecules that could be used as future designed drugs for HER3, aiming to provide insights for future research and development of anticancer drugs targeting HER3.
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Affiliation(s)
- Huilan Zeng
- School of Life Sciences, Chongqing University, Chongqing 401331, China
| | - Wei Wang
- Department of Cancer Center, Chongqing University Three Gorges Hospital, School of Medicine, Chongqing University, Chongqing 404000, China
| | - Lin Zhang
- Department of Gastroenterology, Chongqing University Jiangjin Hospital, Chongqing 402260, China
| | - Zhenghong Lin
- School of Life Sciences, Chongqing University, Chongqing 401331, China
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Mitra A, Kumar A, Amdare NP, Pathak R. Current Landscape of Cancer Immunotherapy: Harnessing the Immune Arsenal to Overcome Immune Evasion. BIOLOGY 2024; 13:307. [PMID: 38785789 PMCID: PMC11118874 DOI: 10.3390/biology13050307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/01/2024] [Revised: 04/24/2024] [Accepted: 04/24/2024] [Indexed: 05/25/2024]
Abstract
Cancer immune evasion represents a leading hallmark of cancer, posing a significant obstacle to the development of successful anticancer therapies. However, the landscape of cancer treatment has significantly evolved, transitioning into the era of immunotherapy from conventional methods such as surgical resection, radiotherapy, chemotherapy, and targeted drug therapy. Immunotherapy has emerged as a pivotal component in cancer treatment, harnessing the body's immune system to combat cancer and offering improved prognostic outcomes for numerous patients. The remarkable success of immunotherapy has spurred significant efforts to enhance the clinical efficacy of existing agents and strategies. Several immunotherapeutic approaches have received approval for targeted cancer treatments, while others are currently in preclinical and clinical trials. This review explores recent progress in unraveling the mechanisms of cancer immune evasion and evaluates the clinical effectiveness of diverse immunotherapy strategies, including cancer vaccines, adoptive cell therapy, and antibody-based treatments. It encompasses both established treatments and those currently under investigation, providing a comprehensive overview of efforts to combat cancer through immunological approaches. Additionally, the article emphasizes the current developments, limitations, and challenges in cancer immunotherapy. Furthermore, by integrating analyses of cancer immunotherapy resistance mechanisms and exploring combination strategies and personalized approaches, it offers valuable insights crucial for the development of novel anticancer immunotherapeutic strategies.
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Affiliation(s)
- Ankita Mitra
- Laura and Isaac Perlmutter Cancer Center, New York University Langone Medical Center, New York, NY 10016, USA
| | - Anoop Kumar
- Molecular Diagnostic Laboratory, National Institute of Biologicals, Noida 201309, Uttar Pradesh, India
| | - Nitin P. Amdare
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
| | - Rajiv Pathak
- Department of Genetics, Albert Einstein College of Medicine, Bronx, New York, NY 10461, USA
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34
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Long AW, Xu H, Santich BH, Guo H, Hoseini SS, de Stanchina E, Cheung NKV. Heterodimerization of T cell engaging bispecific antibodies to enhance specificity against pancreatic ductal adenocarcinoma. J Hematol Oncol 2024; 17:20. [PMID: 38650005 PMCID: PMC11036555 DOI: 10.1186/s13045-024-01538-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 03/22/2024] [Indexed: 04/25/2024] Open
Abstract
BACKGROUND EGFR and/or HER2 expression in pancreatic cancers is correlated with poor prognoses. We generated homodimeric (EGFRxEGFR or HER2xHER2) and heterodimeric (EGFRxHER2) T cell-engaging bispecific antibodies (T-BsAbs) to direct polyclonal T cells to these antigens on pancreatic tumors. METHODS EGFR and HER2 T-BsAbs were constructed using the 2 + 2 IgG-[L]-scFv T-BsAbs format bearing two anti-CD3 scFvs attached to the light chains of an IgG to engage T cells while retaining bivalent binding to tumor antigens with both Fab arms. A Fab arm exchange strategy was used to generate EGFRxHER2 heterodimeric T-BsAb carrying one Fab specific for EGFR and one for HER2. EGFR and HER2 T-BsAbs were also heterodimerized with a CD33 control T-BsAb to generate 'tumor-monovalent' EGFRxCD33 and HER2xCD33 T-BsAbs. T-BsAb avidity for tumor cells was studied by flow cytometry, cytotoxicity by T-cell mediated 51Chromium release, and in vivo efficacy against cell line-derived xenografts (CDX) or patient-derived xenografts (PDX). Tumor infiltration by T cells transduced with luciferase reporter was quantified by bioluminescence. RESULTS The EGFRxEGFR, HER2xHER2, and EGFRxHER2 T-BsAbs demonstrated high avidity and T cell-mediated cytotoxicity against human pancreatic ductal adenocarcinoma (PDAC) cell lines in vitro with EC50s in the picomolar range (0.17pM to 18pM). They were highly efficient in driving human polyclonal T cells into subcutaneous PDAC xenografts and mediated potent T cell-mediated anti-tumor effects. Both EGFRxCD33 and HER2xCD33 tumor-monovalent T-BsAbs displayed substantially reduced avidity by SPR when compared to homodimeric EGFRxEGFR or HER2xHER2 T-BsAbs (∼150-fold and ∼6000-fold respectively), tumor binding by FACS (8.0-fold and 63.6-fold), and T-cell mediated cytotoxicity (7.7-fold and 47.2-fold), while showing no efficacy against CDX or PDX. However, if either EGFR or HER2 was removed from SW1990 by CRISPR-mediated knockout, the in vivo efficacy of heterodimeric EGFRxHER2 T-BsAb was lost. CONCLUSION EGFR and HER2 were useful targets for driving T cell infiltration and tumor ablation. Two arm Fab binding to either one or both targets was critical for robust anti-tumor effect in vivo. By engaging both targets, EGFRxHER2 heterodimeric T-BsAb exhibited potent anti-tumor effects if CDX or PDX were EGFR+HER2+ double-positive with the potential to spare single-positive normal tissue.
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Affiliation(s)
- Alan W Long
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY, 10065, USA
| | - Hong Xu
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY, 10065, USA
| | - Brian H Santich
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY, 10065, USA
| | - Hongfen Guo
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY, 10065, USA
| | | | - Elisa de Stanchina
- Antitumor Assessment Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nai-Kong V Cheung
- Department of Pediatrics, Memorial Sloan Kettering Cancer Center, 1275 York Ave, New York, NY, 10065, USA.
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Haran A, Vaxman I, Gatt ME, Lebel E. Immune Therapies in AL Amyloidosis-A Glimpse to the Future. Cancers (Basel) 2024; 16:1605. [PMID: 38672686 PMCID: PMC11048972 DOI: 10.3390/cancers16081605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 04/16/2024] [Accepted: 04/18/2024] [Indexed: 04/28/2024] Open
Abstract
Light-chain (AL) amyloidosis is a rare plasma cell disorder characterized by the deposition of misfolded immunoglobulin light chains in target organs, leading to multi-organ dysfunction. Treatment approaches have historically mirrored but lagged behind those of multiple myeloma (MM). Recent advancements in MM immunotherapy are gradually being evaluated and adopted in AL amyloidosis. This review explores the current state of immunotherapeutic strategies in AL amyloidosis, including monoclonal antibodies, antibody-drug conjugates, bispecific antibodies, and chimeric antigen receptor T-cell therapy. We discuss the unique challenges and prospects of these therapies in AL amyloidosis, including the exposure of frail AL amyloidosis patients to immune-mediated toxicities such as cytokine release syndrome (CRS) and immune effector-cell-associated neurotoxicity syndrome (ICANS), as well as their efficacy in promoting rapid and deep hematologic responses. Furthermore, we highlight the need for international initiatives and compassionate programs to provide access to these promising therapies and address critical unmet needs in AL amyloidosis management. Finally, we discuss future directions, including optimizing treatment sequencing and mitigating toxicities, to improve outcomes for AL amyloidosis patients.
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Affiliation(s)
- Arnon Haran
- Department of Hematology, Hadassah Hebrew University Medical Center, Jerusalem 91120, Israel; (A.H.); (M.E.G.)
| | - Iuliana Vaxman
- Institute of Hematology, Davidoff Cancer Center, Rabin Medical Center, Petah Tikva 49100, Israel;
| | - Moshe E. Gatt
- Department of Hematology, Hadassah Hebrew University Medical Center, Jerusalem 91120, Israel; (A.H.); (M.E.G.)
| | - Eyal Lebel
- Department of Hematology, Hadassah Hebrew University Medical Center, Jerusalem 91120, Israel; (A.H.); (M.E.G.)
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36
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Zhang Y, Yang Z, Saimi D, Shen X, Ye J, Yu B, Pefaur N, Scheer JM, Nixon AE, Chen Z. Geometric Antibody Engineering Reveals the Spatial Factor on the Efficacy of Bispecific T Cell Engagers. ACS Chem Biol 2024; 19:916-925. [PMID: 38491942 DOI: 10.1021/acschembio.3c00728] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2024]
Abstract
Bispecific antibodies (BsAbs) represent an emerging class of biologics that can recognize two different antigens or epitopes. T-cell engagers (TcEs) bind two targets in trans on the cell surface of the effector and target cell to induce proximal immune effects, opening exciting windows for immunotherapies. To date, the engineering of BsAbs has been mainly focused on tuning the molecular weight and valency. However, the effects of spatial factors on the biological functions of BsAbs have been less explored due to the lack of biochemical methods to precisely manipulate protein geometry. Here, we studied the geometric effects of the TcEs. First, by genetically inserting rigidly designed ankyrin repeat proteins into TcEs, we revealed that the efficacy progressively decreased as the spacer distance of the two binding domains increased. Then, we constructed 26 pairs of TcEs with the same size but varying orientations using click chemistry-mediated conjugation at different mutation sites. We found that linear ligation sites play a minor role in modulating cell-killing efficacy. Next, we rendered the TcEs' advanced topology by cyclization chemistry using the SpyTag/SpyCatcher pair or sortase ligation approaches. Cyclized TcEs were generally more potent than their linear counterparts. Particularly, sortase A cyclized TcEs, bearing a minimal tagging motif, exhibited better cell-killing efficacy in vitro and improved stability both in vitro and in vivo compared to the linear TcE. This work combines modern bioconjugation chemistry and protein engineering tools for antibody engineering, shedding light on the elusive spatial factors of BsAbs functionality.
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Affiliation(s)
- Yu Zhang
- College of Future Technology, Institute of Molecular Medicine, National Biomedical Imaging Center, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Science, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Zhe Yang
- College of Future Technology, Institute of Molecular Medicine, National Biomedical Imaging Center, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Dilizhatai Saimi
- College of Future Technology, Institute of Molecular Medicine, National Biomedical Imaging Center, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
| | - Xiaowen Shen
- College of Future Technology, Institute of Molecular Medicine, National Biomedical Imaging Center, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Science, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
| | - Junqing Ye
- Department of Research Beyond Borders, Boehringer Ingelheim, Investment Co., Ltd., Beijing 100027, China
| | - Bingke Yu
- Department of Research Beyond Borders, Boehringer Ingelheim, Investment Co., Ltd., Shanghai 200040, China
| | - Noah Pefaur
- Biotherapeutics Discovery, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Justin M Scheer
- Biotherapeutics Discovery, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Andrew E Nixon
- Biotherapeutics Discovery, Boehringer Ingelheim Pharmaceuticals, Inc., 900 Ridgebury Road, Ridgefield, Connecticut 06877, United States
| | - Zhixing Chen
- College of Future Technology, Institute of Molecular Medicine, National Biomedical Imaging Center, Beijing Key Laboratory of Cardiometabolic Molecular Medicine, Peking University, Beijing 100871, China
- Peking-Tsinghua Center for Life Science, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
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Poskute R, Sankaran PK, Sewell L, Lepore G, Shrubsall R, Dewis L, Watanabe Y, Wong V, Pascual Fernandez L, Mishra R, Holt A, Sou S, Harris C, Moreno Rodriguez C, Cankorur-Cetinkaya A, Smith J, Lonska N, Powell A, Cui T, Cheeks M, Lindo V. Identification and quantification of chain-pairing variants or mispaired species of asymmetric monovalent bispecific IgG1 monoclonal antibody format using reverse-phase polyphenyl chromatography coupled electrospray ionization mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2024; 1237:124085. [PMID: 38513430 DOI: 10.1016/j.jchromb.2024.124085] [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: 01/10/2024] [Revised: 03/08/2024] [Accepted: 03/09/2024] [Indexed: 03/23/2024]
Abstract
Developing a knob-into-hole asymmetric bispecific IgG1 monoclonal antibody (mAb) poses manufacturing challenges due to the expression of chain pairing variants, also called mispaired species, in the desired product. The incorrect pairing of light and heavy chains could result in heterogeneous mispaired species of homodimers, heterodimers, light chain swapping, and low molecular weight species (LMWS). Standard chromatography, capillary electrophoretic, or spectroscopic methods poorly resolve these from the main variants. Here, we report a highly sensitive reverse-phase polyphenyl ultra-high-performance liquid chromatography (RP-UHPLC) method to accurately measure mispaired species of Duet mAb format, an asymmetric IgG1 bispecific mAb, for both process development and quality control analytical tests. Coupled with electrospray ionization mass spectrometry (ESI-MS), it enabled direct online characterization of mispaired species. This single direct assay detected diverse mispaired IgG-like species and LMWS. The method resolved eight disulfide bonds dissociated LMWS and three mispaired LMWS. It also resolved three different types of IgG-like mispaired species, including two homodimers and one heterodimer. The characterization and quantification simultaneously enabled the cell line selection that produces a lesser heterogeneity and lower levels of mispaired species with the desired correctly paired product. The biological activity assessment of samples with increased levels of these species quantified by the method exhibited a linear decline in potency with increasing levels of mispaired species in the desired product. We also demonstrated the utility of the technique for testing in-process intermediate materials to determine and assess downstream purification process capability in removing diverse mispaired IgG-like species and LMWS to a certain level during the downstream purification process. Our investigation demonstrates that adopting this method was vital in developing asymmetric bispecific mAb from the initial stage of cell line development to manufacturing process development. Therefore, this tool could be used in the control strategy to monitor and control mispaired species during manufacturing, thus improving the quality control of the final product.
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Affiliation(s)
- Ryte Poskute
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | | | - Laura Sewell
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Giordana Lepore
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Rebecca Shrubsall
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Lydia Dewis
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Yasunori Watanabe
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Vanessa Wong
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | | | - Rahul Mishra
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Alexander Holt
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Susie Sou
- Cell Culture & Fermentation Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Claire Harris
- Cell Culture & Fermentation Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Cristina Moreno Rodriguez
- Cell Culture & Fermentation Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Ayca Cankorur-Cetinkaya
- Cell Culture & Fermentation Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Jennifer Smith
- Cell Culture & Fermentation Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Nikola Lonska
- Purification Process Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Adam Powell
- Purification Process Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Tingting Cui
- Purification Process Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Matthew Cheeks
- Cell Culture & Fermentation Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK
| | - Viv Lindo
- Analytical Sciences, BioPharmaceuticals Development, R&D, AstraZeneca, Cambridge, UK.
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Dabkowska A, Domka K, Firczuk M. Advancements in cancer immunotherapies targeting CD20: from pioneering monoclonal antibodies to chimeric antigen receptor-modified T cells. Front Immunol 2024; 15:1363102. [PMID: 38638442 PMCID: PMC11024268 DOI: 10.3389/fimmu.2024.1363102] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/25/2024] [Indexed: 04/20/2024] Open
Abstract
CD20 located predominantly on the B cells plays a crucial role in their development, differentiation, and activation, and serves as a key therapeutic target for the treatment of B-cell malignancies. The breakthrough of monoclonal antibodies directed against CD20, notably exemplified by rituximab, revolutionized the prognosis of B-cell malignancies. Rituximab, approved across various hematological malignancies, marked a paradigm shift in cancer treatment. In the current landscape, immunotherapies targeting CD20 continue to evolve rapidly. Beyond traditional mAbs, advancements include antibody-drug conjugates (ADCs), bispecific antibodies (BsAbs), and chimeric antigen receptor-modified (CAR) T cells. ADCs combine the precision of antibodies with the cytotoxic potential of drugs, presenting a promising avenue for enhanced therapeutic efficacy. BsAbs, particularly CD20xCD3 constructs, redirect cytotoxic T cells to eliminate cancer cells, thereby enhancing both precision and potency in their therapeutic action. CAR-T cells stand as a promising strategy for combatting hematological malignancies, representing one of the truly personalized therapeutic interventions. Many new therapies are currently being evaluated in clinical trials. This review serves as a comprehensive summary of CD20-targeted therapies, highlighting the progress and challenges that persist. Despite significant advancements, adverse events associated with these therapies and the development of resistance remain critical issues. Understanding and mitigating these challenges is paramount for the continued success of CD20-targeted immunotherapies.
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Affiliation(s)
- Agnieszka Dabkowska
- Laboratory of Immunology, Mossakowski Medical Research Institute Polish Academy of Sciences, Warsaw, Poland
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Krzysztof Domka
- Laboratory of Immunology, Mossakowski Medical Research Institute Polish Academy of Sciences, Warsaw, Poland
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
| | - Malgorzata Firczuk
- Laboratory of Immunology, Mossakowski Medical Research Institute Polish Academy of Sciences, Warsaw, Poland
- Department of Immunology, Medical University of Warsaw, Warsaw, Poland
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Madsen AV, Kristensen P, Goletz S. IgG-VHH bispecific fusion antibodies: challenges and opportunities as therapeutic agents. Expert Opin Biol Ther 2024; 24:203-206. [PMID: 38544310 DOI: 10.1080/14712598.2024.2336068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Accepted: 03/25/2024] [Indexed: 04/30/2024]
Affiliation(s)
- Andreas V Madsen
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kgs. Lyngby, Denmark
| | - Peter Kristensen
- Department of Chemistry and Bioscience, Aalborg University, Aalborg, Denmark
| | - Steffen Goletz
- Department of Biotechnology and Biomedicine, Technical University of Denmark, Kgs. Lyngby, Denmark
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40
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Li Z, Zhang Z, Rosen ST, Feng M. Function and mechanism of bispecific antibodies targeting SARS-CoV-2. CELL INSIGHT 2024; 3:100150. [PMID: 38374826 PMCID: PMC10875118 DOI: 10.1016/j.cellin.2024.100150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 01/15/2024] [Accepted: 01/18/2024] [Indexed: 02/21/2024]
Abstract
As the dynamic evolution of SARS-CoV-2 led to reduced efficacy in monoclonal neutralizing antibodies and emergence of immune escape, the role of bispecific antibodies becomes crucial in bolstering antiviral activity and suppressing immune evasion. This review extensively assesses a spectrum of representative bispecific antibodies targeting SARS-CoV-2, delving into their characteristics, design formats, mechanisms of action, and associated advantages and limitations. The analysis encompasses factors influencing the selection of parental antibodies and strategies for incorporating added benefits in bispecific antibody design. Furthermore, how different classes of parental antibodies contribute to augmenting the broad-spectrum neutralization capability within bispecific antibodies is discussed. In summary, this review presents analyses and discussions aimed at offering valuable insights for shaping future strategies in bispecific antibody design to effectively confront the challenges posed by SARS-CoV-2 and propel advancements in antiviral therapeutic development.
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Affiliation(s)
- Zhaohui Li
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
| | - Zengyuan Zhang
- Department of Molecular Microbiology & Immunology, University of Southern California, CA, USA
| | - Steven T. Rosen
- Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
- Department of Hematology and Hematopoietic Cell Transplantation, City of Hope National Medical Center, Duarte, CA, USA
| | - Mingye Feng
- Department of Immuno-Oncology, Beckman Research Institute, City of Hope Comprehensive Cancer Center, Duarte, CA, USA
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Harter MF, Recaldin T, Gerard R, Avignon B, Bollen Y, Esposito C, Guja-Jarosz K, Kromer K, Filip A, Aubert J, Schneider A, Bacac M, Bscheider M, Stokar-Regenscheit N, Piscuoglio S, Beumer J, Gjorevski N. Analysis of off-tumour toxicities of T-cell-engaging bispecific antibodies via donor-matched intestinal organoids and tumouroids. Nat Biomed Eng 2024; 8:345-360. [PMID: 38114742 PMCID: PMC11087266 DOI: 10.1038/s41551-023-01156-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 10/31/2023] [Indexed: 12/21/2023]
Abstract
Predicting the toxicity of cancer immunotherapies preclinically is challenging because models of tumours and healthy organs do not typically fully recapitulate the expression of relevant human antigens. Here we show that patient-derived intestinal organoids and tumouroids supplemented with immune cells can be used to study the on-target off-tumour toxicities of T-cell-engaging bispecific antibodies (TCBs), and to capture clinical toxicities not predicted by conventional tissue-based models as well as inter-patient variabilities in TCB responses. We analysed the mechanisms of T-cell-mediated damage of neoplastic and donor-matched healthy epithelia at a single-cell resolution using multiplexed immunofluorescence. We found that TCBs that target the epithelial cell-adhesion molecule led to apoptosis in healthy organoids in accordance with clinical observations, and that apoptosis is associated with T-cell activation, cytokine release and intra-epithelial T-cell infiltration. Conversely, tumour organoids were more resistant to damage, probably owing to a reduced efficiency of T-cell infiltration within the epithelium. Patient-derived intestinal organoids can aid the study of immune-epithelial interactions as well as the preclinical and clinical development of cancer immunotherapies.
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Affiliation(s)
- Marius F Harter
- Institute of Human Biology (IHB), Roche Innovation Center Basel, Basel, Switzerland
- Gustave Roussy Cancer Campus, University Paris-Saclay, Paris, France
| | - Timothy Recaldin
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Regine Gerard
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Blandine Avignon
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Yannik Bollen
- Institute of Human Biology (IHB), Roche Innovation Center Basel, Basel, Switzerland
| | - Cinzia Esposito
- Department of Biomedicine, University of Basel, Basel, Switzerland
| | | | - Kristina Kromer
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | - Adrian Filip
- Institute of Human Biology (IHB), Roche Innovation Center Basel, Basel, Switzerland
| | - Julien Aubert
- Institute of Human Biology (IHB), Roche Innovation Center Basel, Basel, Switzerland
| | - Anneliese Schneider
- Roche Pharma Research and Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Marina Bacac
- Roche Pharma Research and Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland
| | - Michael Bscheider
- Roche Pharma Research and Early Development, Roche Innovation Center Basel, Basel, Switzerland
| | | | | | - Joep Beumer
- Institute of Human Biology (IHB), Roche Innovation Center Basel, Basel, Switzerland
| | - Nikolche Gjorevski
- Institute of Human Biology (IHB), Roche Innovation Center Basel, Basel, Switzerland.
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Chen Y, Zeng Z, Chen Z, Yuan N, Ye X, Zhang C, Xia N, Luo W. A new mechanism of antibody diversity: formation of the natural antibodies containing LAIR1 and LILRB1 extracellular domains. Antib Ther 2024; 7:157-163. [PMID: 38933531 PMCID: PMC11200687 DOI: 10.1093/abt/tbae008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2023] [Revised: 03/18/2024] [Indexed: 06/28/2024] Open
Abstract
The recent discovery of public antibodies targeting Plasmodium falciparum-encoded repetitive interspersed families of polypeptides (RIFINs), which contain extracellular immunoglobulin-like domains from LAIR1 or LILRB1, constitutes a significant step forward in comprehending the reactivity of the Plasmodium parasite. These antibodies arise from unique B cell clones and demonstrate extensive cross-reactivity through their interaction with P. falciparum RIFINs. LAIR1 and LILRBs are specialized type I transmembrane glycoproteins, classified as immune inhibitory receptors, restricted to primates and mainly found on hematopoietic cells. They are instrumental in modulating interactions within the tumor microenvironment and across the immune system, and are increasingly recognized as important in anti-cancer immunotherapy and pathogen defense. The presence of LAIR1/LILRB1-containing antibodies offers new insights into malaria parasite evasion strategies and the immune system's response. Additionally, the innovative method of integrating extra exons into the antibody switch region is a noteworthy advancement, enriching the strategies for the generation of a varied array of bispecific and multispecific antibodies.
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Affiliation(s)
- Yuanzhi Chen
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health and School of Life Sciences, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Xiamen University, Xiamen 361102, China
| | - Zhiren Zeng
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health and School of Life Sciences, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Xiamen University, Xiamen 361102, China
| | - Ziyou Chen
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health and School of Life Sciences, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Xiamen University, Xiamen 361102, China
| | - Na Yuan
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health and School of Life Sciences, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Xiamen University, Xiamen 361102, China
| | - Xinya Ye
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health and School of Life Sciences, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Xiamen University, Xiamen 361102, China
| | - Chengcheng Zhang
- Department of Physiology, University of Texas Southwestern Medical Center, Dallas, TX 75390, United States
- Department of Developmental Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, United States
| | - Ningshao Xia
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health and School of Life Sciences, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Xiamen University, Xiamen 361102, China
- Research Unit of Frontier Technology of Structural Vaccinology, Chinese Academy of Medical Sciences, Xiamen 361102, China
| | - Wenxin Luo
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, School of Public Health and School of Life Sciences, Xiamen University, Xiamen 361102, China
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, Xiamen University, Xiamen 361102, China
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Klein C, Brinkmann U, Reichert JM, Kontermann RE. The present and future of bispecific antibodies for cancer therapy. Nat Rev Drug Discov 2024; 23:301-319. [PMID: 38448606 DOI: 10.1038/s41573-024-00896-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/22/2024] [Indexed: 03/08/2024]
Abstract
Bispecific antibodies (bsAbs) enable novel mechanisms of action and/or therapeutic applications that cannot be achieved using conventional IgG-based antibodies. Consequently, development of these molecules has garnered substantial interest in the past decade and, as of the end of 2023, 14 bsAbs have been approved: 11 for the treatment of cancer and 3 for non-oncology indications. bsAbs are available in different formats, address different targets and mediate anticancer function via different molecular mechanisms. Here, we provide an overview of recent developments in the field of bsAbs for cancer therapy. We focus on bsAbs that are approved or in clinical development, including bsAb-mediated dual modulators of signalling pathways, tumour-targeted receptor agonists, bsAb-drug conjugates, bispecific T cell, natural killer cell and innate immune cell engagers, and bispecific checkpoint inhibitors and co-stimulators. Finally, we provide an outlook into next-generation bsAbs in earlier stages of development, including trispecifics, bsAb prodrugs, bsAbs that induce degradation of tumour targets and bsAbs acting as cytokine mimetics.
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Affiliation(s)
- Christian Klein
- Roche Pharma Research and Early Development, Roche Innovation Center Zurich, Schlieren, Switzerland.
| | - Ulrich Brinkmann
- Roche Pharma Research and Early Development, Roche Innovation Center Munich, Penzberg, Germany
| | | | - Roland E Kontermann
- Institute of Cell Biology and Immunology, University Stuttgart, Stuttgart, Germany.
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Kuravsky M, Gibbons GF, Joyce C, Scott-Tucker A, Macpherson A, Lawson ADG. Modular design of bi- and multi-specific knob domain fusions. Front Immunol 2024; 15:1384467. [PMID: 38605965 PMCID: PMC11008599 DOI: 10.3389/fimmu.2024.1384467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Accepted: 03/11/2024] [Indexed: 04/13/2024] Open
Abstract
Introduction The therapeutic potential of bispecific antibodies is becoming widely recognised, with over a hundred formats already described. For many applications, enhanced tissue penetration is sought, so bispecifics with low molecular weight may offer a route to enhanced potency. Here we report the design of bi- and tri-specific antibody-based constructs with molecular weights as low as 14.5 and 22 kDa respectively. Methods Autonomous bovine ultra-long CDR H3 (knob domain peptide) modules have been engineered with artificial coiled-coil stalks derived from Sin Nombre orthohantavirus nucleocapsid protein and human Beclin-1, and joined in series to produce bi- and tri-specific antibody-based constructs with exceptionally low molecular weights. Results Knob domain peptides with coiled-coil stalks retain high, independent antigen binding affinity, exhibit exceptional levels of thermal stability, and can be readily joined head-to-tail yielding the smallest described multi-specific antibody format. The resulting constructs are able to bind simultaneously to all their targets with no interference. Discussion Compared to existing bispecific formats, the reduced molecular weight of the knob domain fusions may enable enhanced tissue penetration and facilitate binding to cryptic epitopes that are inaccessible to conventional antibodies. Furthermore, they can be easily produced at high yield as recombinant products and are free from the heavy-light chain mispairing issue. Taken together, our approach offers an efficient route to modular construction of minimalistic bi- and multi-specifics, thereby further broadening the therapeutic scope for knob domain peptides.
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45
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Mebrahtu A, Aniander G, Mega A, Moradi Barzadd M, Berndt Thalén N, Gudmundsdotter L, Backström Rydin E, Sandegren A, Frejd FY, Rockberg J. Co-culture platform for tuning of cancer receptor density allows for evaluation of bispecific immune cell engagers. N Biotechnol 2024; 79:120-126. [PMID: 38159596 DOI: 10.1016/j.nbt.2023.12.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 11/30/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Cancer immunotherapy, where a patient's immune system is harnessed to eradicate cancer cells selectively, is a leading strategy for cancer treatment. However, successes with immune checkpoint inhibitors (ICI) are hampered by reported systemic and organ-specific toxicities and by two-thirds of the patients being non-responders or subsequently acquiring resistance to approved ICIs. Hence substantial efforts are invested in discovering novel targeted immunotherapies aimed at reduced side-effects and improved potency. One way is utilizing the dual targeting feature of bispecific antibodies, which have made them increasingly popular for cancer immunotherapy. Easy and predictive screening methods for activation ranking of candidate drugs in tumor contra non-tumor environments are however lacking. Herein, we present a cell-based assay mimicking the tumor microenvironment by co-culturing B cells with engineered human embryonic kidney 293 T cells (HEK293T), presenting a controllable density of platelet-derived growth factor receptor β (PDGFRβ). A target density panel with three different surface protein levels on HEK293T cells was established by genetic constructs carrying regulatory elements limiting RNA translation of PDGFRβ. We employed a bispecific antibody-affibody construct called an AffiMab capable of binding PDGFRβ on cancer cells and CD40 expressed by B cells as a model. Specific activation of CD40-mediated signaling of immune cells was demonstrated with the two highest receptor-expressing cell lines, Level 2/3 and Level 4, while low-to-none in the low-expressing cell lines. The concept of receptor tuning and the presented co-culture protocol may be of general utility for assessing and developing novel bi-specific antibodies for immuno-oncology applications.
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Affiliation(s)
- Aman Mebrahtu
- KTH - Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Dept. of Protein Science, SE-106 91 Stockholm, Sweden
| | - Gustav Aniander
- KTH - Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Dept. of Protein Science, SE-106 91 Stockholm, Sweden
| | - Alessandro Mega
- Affibody Medical AB, Scheeles väg 2, SE-171 65 Solna, Sweden
| | - Mona Moradi Barzadd
- KTH - Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Dept. of Protein Science, SE-106 91 Stockholm, Sweden
| | - Niklas Berndt Thalén
- KTH - Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Dept. of Protein Science, SE-106 91 Stockholm, Sweden
| | | | | | - Anna Sandegren
- Affibody Medical AB, Scheeles väg 2, SE-171 65 Solna, Sweden
| | - Fredrik Y Frejd
- Affibody Medical AB, Scheeles väg 2, SE-171 65 Solna, Sweden
| | - Johan Rockberg
- KTH - Royal Institute of Technology, School of Engineering Sciences in Chemistry, Biotechnology, and Health, Dept. of Protein Science, SE-106 91 Stockholm, Sweden.
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Jerabek T, Burkhart M, Goetz S, Greck B, Menthe A, Neef R, Otte K. Inefficient transcription is a production bottleneck for artificial therapeutic BiTE® proteins. N Biotechnol 2024; 79:91-99. [PMID: 38154615 DOI: 10.1016/j.nbt.2023.12.008] [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: 11/10/2023] [Revised: 12/15/2023] [Accepted: 12/25/2023] [Indexed: 12/30/2023]
Abstract
Antibodies are potent biopharmaceuticals used to treat severe diseases, including cancers. During the past decade, more complex modalities have been developed including bispecific T-cell engager (BiTE®) molecules, e.g. by Amgen. However, non-natural and complex molecule formats often prove to be difficult-to-express (DTE), which is the case for BiTE® molecules. Due to the growing importance of multispecific modalities such as half-life extended (HLE) BiTE® and HLE dual-targeting bispecific T-cell engager (dBiTE) molecules, this artificial class of therapeutic proteins was investigated for molecular bottlenecks in stable production cell lines, by analyzing all relevant steps of recombinant protein production. As a result, drastically reduced intracellular BiTE® molecule-encoding mRNA levels were identified as a potential production bottleneck. Using in vitro transcription (IVT), the transcription rate of the BiTE® molecule-encoding mRNA was identified as the root cause for reduced amounts of intracellular mRNA. In an attempt to improve the transcription rate of a BiTE® molecule, it could be demonstrated that the artificial and special structure of the BiTE® molecule was not the rate limiting step for reduced IVT rate. However, modulation of the primary DNA sequence led to significant improvement of IVT rate. The analyses presented provide insight into the HLE BiTE® / HLE d(BiTE®) class of DTE proteins and perhaps into other classes of DTE proteins, and therefore may lead to identification of further production bottlenecks and optimization strategies to overcome manufacturability challenges associated with various complex therapeutics.
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Affiliation(s)
- Tobias Jerabek
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400 Biberach an der Riss, Germany.
| | - Madina Burkhart
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400 Biberach an der Riss, Germany
| | - Selina Goetz
- Process Development, Amgen Research (Munich) GmbH, Staffelseestraße 2, 81477 Munich, Germany
| | - Benedikt Greck
- Process Development, Amgen Research (Munich) GmbH, Staffelseestraße 2, 81477 Munich, Germany
| | - Anika Menthe
- Process Development, Amgen Research (Munich) GmbH, Staffelseestraße 2, 81477 Munich, Germany
| | - Ruediger Neef
- Process Development, Amgen Research (Munich) GmbH, Staffelseestraße 2, 81477 Munich, Germany
| | - Kerstin Otte
- Institute of Applied Biotechnology, University of Applied Sciences Biberach, Hubertus-Liebrecht-Str. 35, 88400 Biberach an der Riss, Germany
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Driscoll CL, Keeble AH, Howarth MR. SpyMask enables combinatorial assembly of bispecific binders. Nat Commun 2024; 15:2403. [PMID: 38493197 PMCID: PMC10944524 DOI: 10.1038/s41467-024-46599-9] [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: 09/03/2023] [Accepted: 03/04/2024] [Indexed: 03/18/2024] Open
Abstract
Bispecific antibodies are a successful and expanding therapeutic class. Standard approaches to generate bispecifics are complicated by the need for disulfide reduction/oxidation or specialized formats. Here we present SpyMask, a modular approach to bispecifics using SpyTag/SpyCatcher spontaneous amidation. Two SpyTag-fused antigen-binding modules can be precisely conjugated onto DoubleCatcher, a tandem SpyCatcher where the second SpyCatcher is protease-activatable. We engineer a panel of structurally-distinct DoubleCatchers, from which binders project in different directions. We establish a generalized methodology for one-pot assembly and purification of bispecifics in 96-well plates. A panel of binders recognizing different HER2 epitopes were coupled to DoubleCatcher, revealing unexpected combinations with anti-proliferative or pro-proliferative activity on HER2-addicted cancer cells. Bispecific activity depended sensitively on both binder orientation and DoubleCatcher scaffold geometry. These findings support the need for straightforward assembly in different formats. SpyMask provides a scalable tool to discover synergy in bispecific activity, through modulating receptor organization and geometry.
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Affiliation(s)
- Claudia L Driscoll
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK
| | - Anthony H Keeble
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK
| | - Mark R Howarth
- Department of Biochemistry, University of Oxford, South Parks Road, Oxford, OX1 3QU, UK.
- Department of Pharmacology, University of Cambridge, Tennis Court Road, Cambridge, CB2 1PD, UK.
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48
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Li T, Niu M, Zhou J, Wu K, Yi M. The enhanced antitumor activity of bispecific antibody targeting PD-1/PD-L1 signaling. Cell Commun Signal 2024; 22:179. [PMID: 38475778 PMCID: PMC10935874 DOI: 10.1186/s12964-024-01562-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 03/05/2024] [Indexed: 03/14/2024] Open
Abstract
The programmed cell death 1 (PD-1) signaling pathway, a key player in immune checkpoint regulation, has become a focal point in cancer immunotherapy. In the context of cancer, upregulated PD-L1 on tumor cells can result in T cell exhaustion and immune evasion, fostering tumor progression. The advent of PD-1/PD-L1 inhibitor has demonstrated clinical success by unleashing T cells from exhaustion. Nevertheless, challenges such as resistance and adverse effects have spurred the exploration of innovative strategies, with bispecific antibodies (BsAbs) emerging as a promising frontier. BsAbs offer a multifaceted approach to cancer immunotherapy by simultaneously targeting PD-L1 and other immune regulatory molecules. We focus on recent advancements in PD-1/PD-L1 therapy with a particular emphasis on the development and potential of BsAbs, especially in the context of solid tumors. Various BsAb products targeting PD-1 signaling are discussed, highlighting their unique mechanisms of action and therapeutic potential. Noteworthy examples include anti-TGFβ × PD-L1, anti-CD47 × PD-L1, anti-VEGF × PD-L1, anti-4-1BB × PD-L1, anti-LAG-3 × PD-L1, and anti-PD-1 × CTLA-4 BsAbs. Besides, we summarize ongoing clinical studies evaluating the efficacy and safety of these innovative BsAb agents. By unraveling the intricacies of the tumor microenvironment and harnessing the synergistic effects of anti-PD-1/PD-L1 BsAbs, there exists the potential to elevate the precision and efficacy of cancer immunotherapy, ultimately enabling the development of personalized treatment strategies tailored to individual patient profiles.
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Affiliation(s)
- Tianye Li
- Department of Gynecology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, China
| | - Mengke Niu
- Cancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China
| | - Jianwei Zhou
- Department of Gynecology, The Second Affiliated Hospital, Zhejiang University School of Medicine, Zhejiang University, Hangzhou, 310009, People's Republic of China
- Zhejiang Provincial Clinical Research Center for Obstetrics and Gynecology, Hangzhou, China
| | - Kongming Wu
- Cancer Center, Shanxi Bethune Hospital, Shanxi Academy of Medical Science, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan, Shanxi, People's Republic of China.
| | - Ming Yi
- Department of Breast Surgery, College of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310000, People's Republic of China.
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49
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Board NL, Yuan Z, Wu F, Moskovljevic M, Ravi M, Sengupta S, Mun SS, Simonetti FR, Lai J, Tebas P, Lynn K, Hoh R, Deeks SG, Siliciano JD, Montaner LJ, Siliciano RF. Bispecific antibodies promote natural killer cell-mediated elimination of HIV-1 reservoir cells. Nat Immunol 2024; 25:462-470. [PMID: 38278966 PMCID: PMC10907297 DOI: 10.1038/s41590-023-01741-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 12/28/2023] [Indexed: 01/28/2024]
Abstract
The persistence of CD4+ T cells carrying latent human immunodeficiency virus-1 (HIV-1) proviruses is the main barrier to a cure. New therapeutics to enhance HIV-1-specific immune responses and clear infected cells will probably be necessary to achieve reduction of the latent reservoir. In the present study, we report two single-chain diabodies (scDbs) that target the HIV-1 envelope protein (Env) and the human type III Fcγ receptor (CD16). We show that the scDbs promoted robust and HIV-1-specific natural killer (NK) cell activation and NK cell-mediated lysis of infected cells. Cocultures of CD4+ T cells from people with HIV-1 on antiretroviral therapy (ART) with autologous NK cells and the scDbs resulted in marked elimination of reservoir cells that was dependent on latency reversal. Treatment of human interleukin-15 transgenic NSG mice with one of the scDbs after ART initiation enhanced NK cell activity and reduced reservoir size. Thus, HIV-1-specific scDbs merit further evaluation as potential therapeutics for clearance of the latent reservoir.
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Affiliation(s)
- Nathan L Board
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Zhe Yuan
- The Wistar Institute, Philadelphia, PA, USA
| | - Fengting Wu
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Milica Moskovljevic
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Meghana Ravi
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Srona Sengupta
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Sung Soo Mun
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Francesco R Simonetti
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Jun Lai
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Pablo Tebas
- Presbyterian Hospital-University of Pennsylvania Hospital, Philadelphia, PA, USA
| | - Kenneth Lynn
- Presbyterian Hospital-University of Pennsylvania Hospital, Philadelphia, PA, USA
| | - Rebecca Hoh
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Steven G Deeks
- Department of Medicine, University of California San Francisco, San Francisco, CA, USA
| | - Janet D Siliciano
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
| | | | - Robert F Siliciano
- Department of Medicine, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
- Howard Hughes Medical Institute, Baltimore, MD, USA.
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50
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Dammeijer F, Dumoulin DW, Aerts JGJV. Anti-Vascular Endothelial Growth Factor/Programmed Cell Death Protein 1 Bispecific Antibodies: Using Nunchucks to Fight an Old Adversary. J Thorac Oncol 2024; 19:366-369. [PMID: 38453322 DOI: 10.1016/j.jtho.2023.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Accepted: 12/01/2023] [Indexed: 03/09/2024]
Affiliation(s)
- Floris Dammeijer
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Erasmus University MC, Rotterdam, The Netherlands
| | - Daphne W Dumoulin
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Erasmus University MC, Rotterdam, The Netherlands
| | - Joachim G J V Aerts
- Department of Pulmonary Medicine, Erasmus MC Cancer Institute, Erasmus University MC, Rotterdam, The Netherlands.
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