1
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Feng J, Cao H, Xiang Y, Deng C, Li Y. An integrated methodology for quality assessment of therapeutic antibodies with potential long circulation half-life in harvested cell culture fluid using FcRn immobilized hydrophilic magnetic graphene. Talanta 2024; 272:125781. [PMID: 38359719 DOI: 10.1016/j.talanta.2024.125781] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 02/02/2024] [Accepted: 02/10/2024] [Indexed: 02/17/2024]
Abstract
Designing modified therapeutic antibodies with enhanced FcRn-binding affinity holds promise in the extension of circulation half-lives and potential refinement of pharmacokinetics. During the development of these new-generation therapeutic antibodies, FcRn binding affinity of IgGs is emphasized and monitored as a critical quality attribute (CQA), alongside other critical assessments including titer and aggregation level. However, the traditional workflow for assessing the overall quality of expressed IgGs in harvested cell culture fluid (HCCF) is blamed to be cumbersome and time-consuming. This study presents an integrated methodology for the rapid quality assessment of IgGs in HCCF by selectively extracting IgGs with favorable high FcRn affinity for subsequent analysis using size exclusion chromatography (SEC). The approach utilizes innovative adsorbents known as FcRn immobilized hydrophilic magnetic graphene (MG@PDA@PAMAM-FcRn) in a magnetic solid-phase extraction (MSPE) process. To simulate the in vivo binding dynamics, MSPE binding and dissociation was performed at pH 6.0 and 7.4, respectively. The composite have demonstrated enhanced extraction efficiency and impurity removal ability in comparison to commercially available magnetic beads. The SEC monomer peak area value provides the output of this method, the ranking of which enabled the facile identification of superior HCCF samples with high overall quality of IgG. Optimization of MSPE parameters was performed, and the method was validated for specificity, precision, sensitivity, and accuracy. The proposed method exhibited an analytical time of 0.6 h, which is 7-22 times shortened in comparison to the conventional workflow.
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Affiliation(s)
- Jianan Feng
- Pharmaceutical Analysis Department, School of Pharmacy and MOE Innovative Center for New Drug Development of Immune Inflammatory Diseases, Fudan University, Shanghai, 201203, China
| | - Hao Cao
- Pharmaceutical Analysis Department, School of Pharmacy and MOE Innovative Center for New Drug Development of Immune Inflammatory Diseases, Fudan University, Shanghai, 201203, China
| | - Yangjiayi Xiang
- Pharmaceutical Analysis Department, School of Pharmacy and MOE Innovative Center for New Drug Development of Immune Inflammatory Diseases, Fudan University, Shanghai, 201203, China
| | - Chunhui Deng
- Department of Chemistry and Institutes of Biomedical Sciences, Fudan University, Shanghai, 200433, China
| | - Yan Li
- Pharmaceutical Analysis Department, School of Pharmacy and MOE Innovative Center for New Drug Development of Immune Inflammatory Diseases, Fudan University, Shanghai, 201203, China; Center for Medical Research and Innovation, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, 201399, China.
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2
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Wen K, Dai W, Meng X, Lin Q, Wei J, Tong L, Taylor SK, Rudchenko SA, Stojanovic MN, Kalantarov G, Trakht I. Rapid isolation of anti-idiotype aptamers for quantification of human monoclonal antibodies against SARS-CoV-2 spike protein. Biosens Bioelectron 2024; 246:115842. [PMID: 38042051 PMCID: PMC10935567 DOI: 10.1016/j.bios.2023.115842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2023] [Revised: 10/20/2023] [Accepted: 11/13/2023] [Indexed: 12/04/2023]
Abstract
Therapeutic antibodies that block viral entry have already proven to be important, first line drugs for treatments of viral infections. In the case of SARS-CoV-2, combinations of multiple therapeutic antibodies may need to be rapidly identified and formulated in a way that blocks each new, predominant variant of the virus. For efficient introduction of any new antibody combination into patients, it is important to be able to monitor patient-specific pharmacokinetics of individual antibodies, which would include the time course of their specific capacity to block the viral spike proteins. Here, we present three examples of microfluidic-based rapid isolation of companion reagents useful for establishing combination antibody therapies. These reagents are specific three-dimensional imprints of variable regions of individual human monoclonal antibodies against the -spike protein of SARS-CoV-2 virus in the form of oligonucleotide-based ligands (aptamers). We implement these anti-idiotypic aptamers as bioreceptors in graphene-based field-effect transistor sensors to accomplish label free, rapid, and sensitive detection of matching antibodies within minutes. Through this work we have demonstrated the general applicability of anti-idiotype aptamers as capture reagents in quantification of active forms of monoclonal antibodies in complex biological mixtures.
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Affiliation(s)
- Kechun Wen
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Wenting Dai
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Xin Meng
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA
| | - Qiao Lin
- Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA.
| | - Jia Wei
- Department of Biological Sciences, Columbia University, New York, NY, 10027, USA
| | - Liang Tong
- Department of Biological Sciences, Columbia University, New York, NY, 10027, USA
| | - Steven K Taylor
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Sergei A Rudchenko
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Milan N Stojanovic
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA; Departments of Biomedical Engineering and Systems Biology, Columbia University, New York, NY, 10032, USA.
| | - Gary Kalantarov
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA
| | - Ilya Trakht
- Division of Experimental Therapeutics, Department of Medicine, Columbia University, New York, NY, 10032, USA.
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3
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Holst MR, de Wit NM, Ozgür B, Brachner A, Hyldig K, Appelt-Menzel A, Sleven H, Cader Z, de Vries HE, Neuhaus W, Jensen A, Brodin B, Nielsen MS. Subcellular trafficking and transcytosis efficacy of different receptor types for therapeutic antibody delivery at the blood‒brain barrier. Fluids Barriers CNS 2023; 20:82. [PMID: 37932749 PMCID: PMC10626680 DOI: 10.1186/s12987-023-00480-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Accepted: 10/18/2023] [Indexed: 11/08/2023] Open
Abstract
Here, we report an experimental setup to benchmark different receptors for targeted therapeutic antibody delivery at the blood-brain barrier. We used brain capillary endothelial-like cells derived from induced pluripotent stem cells (hiPSC-BECs) as a model system and compared them to colon epithelial Caco-2 cells. This approach helped to identify favourable receptors for transport into the cell layer itself or for directing transport for transcytosis across the cell layer. The sorting receptors transferrin receptor and sortilin were shown to be efficient as antibody cargo receptors for intracellular delivery to the cell layer. In contrast, the cell surface receptors CD133 and podocalyxin were identified as static and inefficient receptors for delivering cargo antibodies. Similar to in vivo studies, the hiPSC-BECs maintained detectable transcytotic transport via transferrin receptor, while transcytosis was restricted using sortilin as a cargo receptor. Based on these findings, we propose the application of sortilin as a cargo receptor for delivering therapeutic antibodies into the brain microvascular endothelium.
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Affiliation(s)
| | - Nienke Marije de Wit
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Burak Ozgür
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
- Biotherapeutic Discovery, H. Lundbeck A/S, Valby, 2500, Copenhagen, Denmark
| | - Andreas Brachner
- AIT Austrian Institute of Technology GmbH, Competence Unit Molecular Diagnostics, Centre for Health and Bioresources, Vienna, Austria
| | - Kathrine Hyldig
- Department of Biomedicine, Aarhus University, Aarhus, Denmark
- Biotherapeutic Discovery, H. Lundbeck A/S, Valby, 2500, Copenhagen, Denmark
| | - Antje Appelt-Menzel
- Chair Tissue Engineering and Regenerative Medicine (TERM), University Hospital Würzburg, Röntgenring 11, Würzburg, Germany
- Translational Center Regenerative Therapies (TLC-RT), Fraunhofer Institute for Silicate Research ISC, Röntgenring 12, Würzburg, Germany
| | - Hannah Sleven
- Translational Molecular Neuroscience Group, University of Oxford, Oxford, UK
| | - Zameel Cader
- Translational Molecular Neuroscience Group, University of Oxford, Oxford, UK
| | - Helga Eveline de Vries
- Department of Molecular Cell Biology and Immunology, Amsterdam UMC location Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Amsterdam Neuroscience, Amsterdam, The Netherlands
| | - Winfried Neuhaus
- AIT Austrian Institute of Technology GmbH, Competence Unit Molecular Diagnostics, Centre for Health and Bioresources, Vienna, Austria
- Department of Medicine, Faculty Medicine and Dentistry, Private Danube University, 3500, Krems, Austria
| | - Allan Jensen
- Biotherapeutic Discovery, H. Lundbeck A/S, Valby, 2500, Copenhagen, Denmark
| | - Birger Brodin
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
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4
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Bauer-Smith H, Sudol ASL, Beers SA, Crispin M. Serum immunoglobulin and the threshold of Fc receptor-mediated immune activation. Biochim Biophys Acta Gen Subj 2023; 1867:130448. [PMID: 37652365 DOI: 10.1016/j.bbagen.2023.130448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/23/2023] [Accepted: 08/23/2023] [Indexed: 09/02/2023]
Abstract
Antibodies can mediate immune recruitment or clearance of immune complexes through the interaction of their Fc domain with cellular Fc receptors. Clustering of antibodies is a key step in generating sufficient avidity for efficacious receptor recognition. However, Fc receptors may be saturated with prevailing, endogenous serum immunoglobulin and this raises the threshold by which cellular receptors can be productively engaged. Here, we review the factors controlling serum IgG levels in both healthy and disease states, and discuss how the presence of endogenous IgG is encoded into the functional activation thresholds for low- and high-affinity Fc receptors. We discuss the circumstances where antibody engineering can help overcome these physiological limitations of therapeutic antibodies. Finally, we discuss how the pharmacological control of Fc receptor saturation by endogenous IgG is emerging as a feasible mechanism for the enhancement of antibody therapeutics.
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Affiliation(s)
- Hannah Bauer-Smith
- School of Biological Sciences, University of Southampton, Southampton SO17 1BJ, UK; Centre for Cancer Immunology, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton SO16 6YD, UK
| | - Abigail S L Sudol
- School of Biological Sciences, University of Southampton, Southampton SO17 1BJ, UK
| | - Stephen A Beers
- Centre for Cancer Immunology, School of Cancer Sciences, University of Southampton Faculty of Medicine, Southampton SO16 6YD, UK.
| | - Max Crispin
- School of Biological Sciences, University of Southampton, Southampton SO17 1BJ, UK.
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5
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Liang S, Zhang C. PITHA: A Webtool to Predict Immunogenicity for Humanized and Fully Human Therapeutic Antibodies. Methods Mol Biol 2023; 2552:143-150. [PMID: 36346590 DOI: 10.1007/978-1-0716-2609-2_7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Immunogenicity is an important concern to therapeutic antibodies during antibody design and development. Based on the co-crystal structures of idiotypic antibodies and their antibodies, one can see that anti-idiotypic antibodies usually bind the complementarity-determining regions (CDR) of idiotypic antibodies. Sequence and structural features, such as cavity volume at the CDR region and hydrophobicity of CDR-H3 loop region, were identified for distinguishing immunogenic antibodies from non-immunogenic antibodies. These features were integrated together with a machine learning platform to predict immunogenicity for humanized and fully human therapeutic antibodies (PITHA). This method achieved an accuracy of 83% in a leave-one-out experiment for 29 therapeutic antibodies with available crystal structures. The web server of this method is accessible at http://mabmedicine.com/PITHA or http://sysbio.unl.edu/PITHA . This method, as a step of computer-aided antibody design, helps evaluate the safety of new therapeutic antibody, which can save time and money during the therapeutic antibody development.
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Affiliation(s)
- Shide Liang
- Department of Research and Development, Bio-Thera Solutions, Guangzhou, P. R. China.
| | - Chi Zhang
- School of Biological Sciences, University of Nebraska, Lincoln, NE, USA.
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6
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Söderberg L, Johannesson M, Nygren P, Laudon H, Eriksson F, Osswald G, Möller C, Lannfelt L. Lecanemab, Aducanumab, and Gantenerumab - Binding Profiles to Different Forms of Amyloid-Beta Might Explain Efficacy and Side Effects in Clinical Trials for Alzheimer's Disease. Neurotherapeutics 2023; 20:195-206. [PMID: 36253511 PMCID: PMC10119362 DOI: 10.1007/s13311-022-01308-6] [Citation(s) in RCA: 93] [Impact Index Per Article: 93.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/19/2022] [Indexed: 11/29/2022] Open
Abstract
Immunotherapy against amyloid-beta (Aβ) is a promising option for the treatment of Alzheimer's disease (AD). Aβ exists as various species, including monomers, oligomers, protofibrils, and insoluble fibrils in plaques. Oligomers and protofibrils have been shown to be toxic, and removal of these aggregates might represent an effective treatment for AD. We have characterized the binding properties of lecanemab, aducanumab, and gantenerumab to different Aβ species with inhibition ELISA, immunodepletion, and surface plasmon resonance. All three antibodies bound monomers with low affinity. However, lecanemab and aducanumab had very weak binding to monomers, and gantenerumab somewhat stronger binding. Lecanemab was distinctive as it had tenfold stronger binding to protofibrils compared to fibrils. Aducanumab and gantenerumab preferred binding to fibrils over protofibrils. Our results show different binding profiles of lecanemab, aducanumab, and gantenerumab that may explain clinical results observed for these antibodies regarding both efficacy and side effects.
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Affiliation(s)
| | | | - Patrik Nygren
- BioArctic AB, Warfvinges väg 35, 112 51, Stockholm, Sweden
| | - Hanna Laudon
- BioArctic AB, Warfvinges väg 35, 112 51, Stockholm, Sweden
| | | | | | | | - Lars Lannfelt
- BioArctic AB, Warfvinges väg 35, 112 51, Stockholm, Sweden.
- Dept. of Public Health/Geriatrics, Uppsala University, 751 85, Uppsala, Sweden.
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7
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Bleuez C, Koch WF, Urbach C, Hollfelder F, Jermutus L. Exploiting protease activation for therapy. Drug Discov Today 2022; 27:1743-54. [PMID: 35314338 DOI: 10.1016/j.drudis.2022.03.011] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 01/14/2022] [Accepted: 03/15/2022] [Indexed: 02/08/2023]
Abstract
Proteases have crucial roles in homeostasis and disease; and protease inhibitors and recombinant proteases in enzyme replacement therapy have become key therapeutic applications of protease biology across several indications. This review briefly summarises therapeutic approaches based on protease activation and focuses on how recent insights into the spatial and temporal control of the proteolytic activation of growth factors and interleukins are leading to unique strategies for the discovery of new medicines. In particular, two emerging areas are covered: the first is based on antibody therapies that target the process of proteolytic activation of the pro-form of proteins rather than their mature form; the second covers a potentially new class of biopharmaceuticals using engineered, proteolytically activable and initially inactive pro-forms of antibodies or effector proteins to increase specificity and improve the therapeutic window.
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8
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Yélamos J. Current innovative engineered antibodies. Int Rev Cell Mol Biol 2022; 369:1-43. [PMID: 35777861 DOI: 10.1016/bs.ircmb.2022.03.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Antibody engineering has developed very intensively since the invention of the hybridoma technology in 1975, and it now can generate therapeutic agents with high specificity and reduced adverse effects. Indeed, antibodies have become one of the most innovative therapeutic agents in recent years, with some landing in the top 10 bestselling pharmaceutical drugs. New antibodies are being approved every year, in different formats and for treating various illnesses, including cancer, autoimmune inflammatory diseases, metabolic diseases and infectious diseases. In this review, I summarize current progress in innovative engineered antibodies. Overall, this progress has led to the approval by regulatory authorities of more than 100 antibody-based molecules, with many others at various stages of clinical development, indicating the high growth potential of the field.
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Affiliation(s)
- José Yélamos
- Cancer Research Program, Hospital del Mar Medical Research Institute (IMIM), Unidad Asociada IIBB-CSIC, Barcelona, Spain; Immunology Unit, Department of Pathology, Hospital del Mar, Barcelona, Spain.
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9
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Nur Husna SM, Md Shukri N, Mohd Ashari NS, Wong KK. IL-4/IL-13 axis as therapeutic targets in allergic rhinitis and asthma. PeerJ 2022; 10:e13444. [PMID: 35663523 PMCID: PMC9161813 DOI: 10.7717/peerj.13444] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Accepted: 04/25/2022] [Indexed: 01/14/2023] Open
Abstract
Allergic rhinitis (AR) is a common disorder of the upper airway, while asthma is a disease affecting the lower airway and both diseases are usually comorbid. Interleukin (IL)-4 and IL-13 are critical cytokines in the induction of the pathogenic Th2 responses in AR and asthma. Targeting the IL-4/IL-13 axis at various levels of its signaling pathway has emerged as promising targeted therapy in both AR and asthma patient populations. In this review, we discuss the biological characteristics of IL-4 and IL-13, their signaling pathways, and therapeutic antibodies against each cytokine as well as their receptors. In particular, the pleiotropic roles of IL-4 and IL-13 in orchestrating Th2 responses in AR and asthma patients indicate that dual IL-4/IL-13 blockade is a promising therapeutic strategy for both diseases.
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Affiliation(s)
- Siti Muhamad Nur Husna
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Norasnieda Md Shukri
- Department of Otorhinolaryngology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Noor Suryani Mohd Ashari
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
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10
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Maritaz C, Broutin S, Chaput N, Marabelle A, Paci A. Immune checkpoint-targeted antibodies: a room for dose and schedule optimization? J Hematol Oncol 2022; 15:6. [PMID: 35033167 PMCID: PMC8760805 DOI: 10.1186/s13045-021-01182-3] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Accepted: 08/26/2021] [Indexed: 12/13/2022] Open
Abstract
Anti-CTLA-4 and anti-PD-1/PD-L1 immune checkpoint inhibitors are therapeutic monoclonal antibodies that do not target cancer cells but are designed to reactivate or promote antitumor immunity. Dosing and scheduling of these biologics were established according to conventional drug development models, even though the determination of a maximum tolerated dose in the clinic could only be defined for anti-CTLA-4. Given the pharmacology of these monoclonal antibodies, their high interpatient pharmacokinetic variability, the actual clinical benefit as monotherapy that is observed only in a specific subset of patients, and the substantial cost of these treatments, a number of questions arise regarding the selected dose and the dosing interval. This review aims to outline the development of these immunotherapies and considers optimization options that could be used in clinical practice.
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Affiliation(s)
- Christophe Maritaz
- Pharmacology Department, U1030 INSERM, University Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - Sophie Broutin
- Pharmacology Department, U1030 INSERM, University Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - Nathalie Chaput
- Laboratory for Immunomonitoring in Oncology (LIO), Faculty of Pharmacy, University Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France
| | - Aurélien Marabelle
- Drug Development Unit (DITEP), LRTI U1015 INSERM, Gustave Roussy, Villejuif, France
| | - Angelo Paci
- Pharmacology Department, U1030 INSERM, University Paris-Saclay, Gustave Roussy Cancer Campus, Villejuif, France. .,Pharmacokinetic Unit, Faculty of Pharmacy, University Paris-Saclay, Chatenay-Malabry, France.
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11
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Beeg M, Allocati E, Gobbi M. A Surface Plasmon Resonance-Based Assay for Simultaneous Measurement of Serum Concentrations of Therapeutic Antibodies and Anti-Drug Antibodies. Methods Mol Biol 2022; 2313:323-336. [PMID: 34478149 DOI: 10.1007/978-1-0716-1450-1_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
The monitoring of the blood levels of therapeutic antibodies and their immune responses is proposed to guide and optimize therapy with these expensive drugs. We describe a novel Surface Plasmon Resonance (SPR)-based assay suitable for the simultaneous determination of serum concentrations of infliximab and anti-infliximab antibodies. The real-time detection by SPR avoids the incubation/washing steps of commonly used methods, thus allowing faster and more reliable measurements, in particular for low-affinity anti-drug antibodies. This method proved to be highly reproducible and may be well applied to other biotherapeutics.
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Affiliation(s)
- Marten Beeg
- Laboratory of Pharmacodynamics and Pharmacokinetics, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy.
| | - Eleonora Allocati
- Center for Health Regulatory Policies, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
| | - Marco Gobbi
- Laboratory of Pharmacodynamics and Pharmacokinetics, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy
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12
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Fu Z, Liu H, Wang L, Yu C, Yang Y, Feng M, Wang J. A reporter gene assay for determining the biological activity of therapeutic antibodies targeting TIGIT. Acta Pharm Sin B 2021; 11:3925-34. [PMID: 35024316 DOI: 10.1016/j.apsb.2021.09.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Revised: 07/08/2021] [Accepted: 08/27/2021] [Indexed: 12/17/2022] Open
Abstract
T cell immunoglobulin and ITIM domain (TIGIT) is a novel immune checkpoint that has been considered as a target in cancer immunotherapy. Current available bioassays for measuring the biological activity of therapeutic antibodies targeting TIGIT are restricted to mechanistic investigations because donor primary T cells are highly variable. Here, we designed a reporter gene assay comprising two cell lines, namely, CHO-CD112-CD3 scFv, which stably expresses CD112 (PVRL2, nectin-2) and a membrane-bound anti-CD3 single-chain fragment variable (scFv) as the target cell, and Jurkat-NFAT-TIGIT, which stably expresses TIGIT as well as the nuclear factor of activated T-cells (NFAT) response element-controlled luciferase gene, as the effector cell. The anti-CD3 scFv situated on the target cells activates Jurkat-NFAT-TIGIT cells through binding and crosslinking CD3 molecules of the effector cell, whereas interactions between CD112 and TIGIT prevent activation. The presence of anti-TIGIT mAbs disrupts their interaction, which in turn reverses the inactivation and luciferase expression. Optimization and validation studies have demonstrated that this assay is superior in terms of specificity, accuracy, linearity, and precision. In summary, this reliable and effective reporter gene assay may potentially be utilized in lot release control, stability assays, screening, and development of novel TIGIT-targeted therapeutic antibodies.
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13
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Dietlin-Auril V, Lecerf M, Depinay S, Noé R, Dimitrov JD. Interaction with 2,4-dinitrophenol correlates with polyreactivity, self-binding, and stability of clinical-stage therapeutic antibodies. Mol Immunol 2021; 140:233-239. [PMID: 34773862 DOI: 10.1016/j.molimm.2021.10.019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2021] [Revised: 10/21/2021] [Accepted: 10/27/2021] [Indexed: 11/28/2022]
Abstract
Therapeutic antibodies should cover particular physicochemical and functional requirements for successful entry into clinical practice. Numerous experimental and computational approaches have been developed for early identification of different unfavourable features of antibodies. Immune repertoires of healthy humans contain a fraction of antibodies that recognize nitroarenes. These antibodies have been demonstrated to manifest antigen-binding polyreactivity. Here we observed that >20 % of 112 clinical stage therapeutic antibodies show pronounced binding to 2,4-dinitrophenol conjugated to albumin. This interaction predicts a number of unfavourable functional and physicochemical features of antibodies such as polyreactivity, tendency for self-association, stability and expression yields. Based on these findings we proposed a simple approach that may add to the armamentarium of assays for early identification of developability liabilities of antibodies intended for therapeutic use.
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Affiliation(s)
- Valentin Dietlin-Auril
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006, Paris, France
| | - Maxime Lecerf
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006, Paris, France
| | - Stephanie Depinay
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006, Paris, France
| | - Rémi Noé
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006, Paris, France
| | - Jordan D Dimitrov
- Centre de Recherche des Cordeliers, INSERM, Sorbonne Université, Université de Paris, 75006, Paris, France.
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14
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Pot S, Gstöttner C, Heinrich K, Hoelterhoff S, Grunert I, Leiss M, Bathke A, Domínguez-Vega E. Fast analysis of antibody-derived therapeutics by automated multidimensional liquid chromatography - Mass spectrometry. Anal Chim Acta 2021; 1184:339015. [PMID: 34625261 DOI: 10.1016/j.aca.2021.339015] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/23/2021] [Accepted: 08/30/2021] [Indexed: 12/01/2022]
Abstract
Characterization of post-translational modifications (PTMs) of therapeutic antibodies is commonly performed by bottom-up approaches, involving sample preparation and peptide analysis by liquid chromatography-mass spectrometry (LC-MS). Conventional sample preparation requires extensive hands-on time and can increase the risk of inducing artificial modifications as many off-line steps - denaturation, disulfide-reduction, alkylation and tryptic digestion - are performed. In this study, we developed an on-line multidimensional (mD)-LC-MS bottom-up approach for fast sample preparation and analysis of (formulated) monoclonal antibodies and antibody-derived therapeutics. This approach allows on-column reduction, tryptic digestion and subsequent peptide analysis by RP-MS. Optimization of the 1D -and 2D flow and temperature improved the trapping of small polar peptides during on-line peptide mapping analysis. These adaptations increased the sequence coverage (95-98% versus 86-94% for off-line approaches) and allowed identification of various PTMs (i.e. deamidation of asparagine, methionine oxidation and lysine glycation) within a single analysis. This workflow enables a fast (<2 h) characterization of antibody heterogeneities within a single run and a low amount of protein (10 μg). Importantly, the new mD-LC-MS bottom-up method was able to detect the polar, fast-eluting peptides: Fc oxidation at Hc-Met-252 and the Fc N-glycosylation at Hc-Asn-297, which can be challenging using mD-LC-MS. Moreover, the method showed good comparability across the different measurements (RSD of retention time in the range of 0.2-1.8% for polar peptides). The LC system was controlled by only a standard commercial software package which makes implementation for fast characterization of quality attributes relatively easy.
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Affiliation(s)
- Sanne Pot
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
| | - Christoph Gstöttner
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands.
| | - Katrin Heinrich
- Pharma Technical Development Europe, Roche Diagnostics GmbH, Penzberg, Germany
| | - Sina Hoelterhoff
- Pharma Technical Development Europe, Hoffmann-La Roche, Basel, Switzerland
| | - Ingrid Grunert
- Pharma Technical Development Europe, Roche Diagnostics GmbH, Penzberg, Germany
| | - Michael Leiss
- Pharma Technical Development Europe, Roche Diagnostics GmbH, Penzberg, Germany
| | - Anja Bathke
- Pharma Technical Development Europe, Hoffmann-La Roche, Basel, Switzerland
| | - Elena Domínguez-Vega
- Center for Proteomics and Metabolomics, Leiden University Medical Center, Leiden, the Netherlands
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Abstract
ABSTRACT From Operation Warp Speed to the lipid mRNA vaccine, the COVID-19 pandemic has been a watershed moment for technological development, production, and implementation. The scale and pace of innovation and global collaboration has likely not been experienced since World War II. This article highlights some of the engineering accomplishments that occurred during the pandemic. We provide a broad overview of the technological achievements in vaccine design, antibody engineering, drug repurposing, and rapid diagnostic testing. We also discuss what the future of these technologies and the future of large-scale collaborations might look like moving forward. GRAPHIC ABSTRACT
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Affiliation(s)
- Yerim Lee
- Department of Biomedical Engineering, and Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA USA
| | - Michelle Ng
- Department of Biomedical Engineering, and Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA USA
| | - Kristin Daniel
- Department of Biomedical Engineering, and Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA USA
| | - Elizabeth Wayne
- Department of Biomedical Engineering, and Department of Chemical Engineering, Carnegie Mellon University, Pittsburgh, PA USA
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16
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Abstract
Protein A affinity chromatography is widely used for capturing therapeutic antibodies. It offers high binding capacity, selectivity, and resin reusability while delivering high yield and product purity. The Protein A step is ubiquitous in its presence in purification platforms for production of antibody products due to the effective clearance it offers of impurities, high and low molecular weight species (HMW and LMW), host cell proteins (HCP), and DNA. In this chapter, we describe a highly selective Protein A affinity chromatography protocol for purification of monoclonal antibodies.
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Parray HA, Shukla S, Perween R, Khatri R, Shrivastava T, Singh V, Murugavelu P, Ahmed S, Samal S, Sharma C, Sinha S, Luthra K, Kumar R. Inhalation monoclonal antibody therapy: a new way to treat and manage respiratory infections. Appl Microbiol Biotechnol 2021; 105:6315-6332. [PMID: 34423407 PMCID: PMC8380517 DOI: 10.1007/s00253-021-11488-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Revised: 07/14/2021] [Accepted: 07/30/2021] [Indexed: 12/23/2022]
Abstract
The route of administration of a therapeutic agent has a substantial impact on its success. Therapeutic antibodies are usually administered systemically, either directly by intravenous route, or indirectly by intramuscular or subcutaneous injection. However, treatment of diseases contained within a specific tissue necessitates a better alternate route of administration for targeting localised infections. Inhalation is a promising non-invasive strategy for antibody delivery to treat respiratory maladies because it provides higher concentrations of antibody in the respiratory airways overcoming the constraints of entry through systemic circulation and uncertainity in the amount reaching the target tissue. The nasal drug delivery route is one of the extensively researched modes of administration, and nasal sprays for molecular drugs are deemed successful and are presently commercially marketed. This review highlights the current state and future prospects of inhaled therapies, with an emphasis on the use of monoclonal antibodies for the treatment of respiratory infections, as well as an overview of their importance, practical challenges, and clinical trial outcomes.Key points• Immunologic strategies for preventing mucosal transmission of respiratory pathogens.• Mucosal-mediated immunoprophylaxis could play a major role in COVID-19 prevention.• Applications of monoclonal antibodies in passive immunisation.
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Affiliation(s)
- Hilal Ahmad Parray
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Shivangi Shukla
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Reshma Perween
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Ritika Khatri
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Tripti Shrivastava
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Vanshika Singh
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Praveenkumar Murugavelu
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Shubbir Ahmed
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Sweety Samal
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Chandresh Sharma
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India
| | - Subrata Sinha
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Kalpana Luthra
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Rajesh Kumar
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, 3rd Milestone, Faridabad - Gurgaon Expressway, PO Box # 04, Faridabad, Haryana, 121001, India.
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18
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Kinoshita M, Nakajima K, Yamamoto S, Suzuki S. High-throughput N-glycan screening method for therapeutic antibodies using a microchip-based DNA analyzer: a promising methodology for monitoring monoclonal antibody N-glycosylation. Anal Bioanal Chem 2021; 413:4727-4738. [PMID: 34080034 DOI: 10.1007/s00216-021-03434-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Revised: 05/11/2021] [Accepted: 05/25/2021] [Indexed: 10/21/2022]
Abstract
N-Glycosylation of therapeutic antibodies is a critical quality attribute (CQA), and the micro-heterogeneity affects the biological and physicochemical properties of antibodies. Therefore, the profiling of N-glycans on antibodies is essential for controlling the manufacturing process and ensuring the efficacy and safety of the therapeutic antibodies. To monitor N-glycosylation in recombinant proteins, a high-throughput (HTP) methodology for glycan analysis is required to handle bulk samples in various stages of the manufacturing process. In this study, we focused on the HTP methodology for N-glycan analysis using a commercial microchip electrophoresis-based DNA analyzer and demonstrated the feasibility of the workflow consisting of sample preparation and electrophoretic separation. Even if there is a demand to analyze up to 96 samples, the present workflow can be completed in a day without expensive instruments and reagent kits for sample preparation, and it will be a promising methodology for cost-effective and facile HTP N-glycosylation analysis while optimizing the manufacturing process and development for therapeutic antibodies.
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Affiliation(s)
- Mitsuhiro Kinoshita
- Department of Pharmaceutical Sciences, Kindai University, Kowakae 3-4-1, Higashi-osaka, 577-8502, Japan.
| | - Kazuki Nakajima
- Center for Joint Research Facilities Support, Research Promotion and Support Headquarters, Fujita Health University, 1-98, Dengakugakubo, Kutsukake-cho, Toyoake, Aichi, 470-1192, Japan
| | - Sachio Yamamoto
- Department of Pharmaceutical Sciences, Kindai University, Kowakae 3-4-1, Higashi-osaka, 577-8502, Japan
| | - Shigeo Suzuki
- Department of Pharmaceutical Sciences, Kindai University, Kowakae 3-4-1, Higashi-osaka, 577-8502, Japan
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19
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Abstract
Antibodies produced upon infections with pathogenic microorganisms are essential for clearing primary infections and for providing the host with long-lasting immunity. Moreover, antibodies have become the most widely used platform for developing novel therapies against cancer and autoimmunity, requiring an in-depth understanding of how antibodies mediate their activity in vivo and which factors modulate pro- or anti-inflammatory antibody activities. Since the discovery that select residues present in the sugar domain attached to the immunoglobulin G (IgG) fragment crystallizable (Fc) region can modulate both, pro- and anti-inflammatory effector functions, a wealth of studies has focused on understanding how IgG glycosylation is regulated and how this knowledge can be used to optimize therapeutic antibody activity. With the introduction of glycoengineered afucosylated antibodies in cancer therapy and the initiation of clinical testing of highly sialylated anti-inflammatory antibodies the proof-of-concept that understanding antibody glycosylation can lead to clinical innovation has been provided. The focus of this review is to summarize recent insights into how antibody glycosylation is regulated in vivo and how select sugar residues impact IgG function.
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Affiliation(s)
- Falk Nimmerjahn
- Chair of Genetics, Department of Biology, Institute of Genetics, University of Erlangen-Nürnberg, Erlangen, Germany.
- Medical Immunology Campus Erlangen, Erlangen, Germany.
| | - Anja Werner
- Chair of Genetics, Department of Biology, Institute of Genetics, University of Erlangen-Nürnberg, Erlangen, Germany
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20
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Megha KB, Mohanan PV. Role of immunoglobulin and antibodies in disease management. Int J Biol Macromol 2020; 169:28-38. [PMID: 33340621 DOI: 10.1016/j.ijbiomac.2020.12.073] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 08/21/2020] [Accepted: 12/08/2020] [Indexed: 02/07/2023]
Abstract
The immune system is a highly advanced and coordinated mechanism that allows a living organism to distinguish between "self" and "non-self". The host uses both innate and adaptive immune response mechanisms to identify and eliminate pathogenic microorganisms. Human immunoglobulin is the prominently used blood product in the clinical practice. Immunoglobulin applications have improved rapidly due to the exploration of its immunomodulatory and anti-inflammatory properties. This made this blood product into a precious and advanced tool in the treatment of numerous disease conditions which are linked with humoral immune deficiency or that cause immune system dysfunction. Human immunoglobulin (Ig) is used for Ig replacement therapy in both primary and secondary immunodeficiency conditions, for prevention and treatment of certain infections. It also acts as an immunomodulatory agent for autoimmune and inflammatory disorders. Therapeutic antibodies have been successfully used for the treatment of diverse pathological conditions. Drug development programs exclusively select highly specific antibodies that recognize a single disease-associated target. Hopefully this review will give an insight towards the immune system, the involvement of the specialized immune cells, their products and involvement in various immune disorders and pathological conditions.
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Affiliation(s)
- K B Megha
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum 695 012, Kerala, India
| | - P V Mohanan
- Toxicology Division, Biomedical Technology Wing, Sree Chitra Tirunal Institute for Medical Sciences and Technology (Govt. of India), Poojapura, Trivandrum 695 012, Kerala, India.
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21
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Li H, Somiya M, Kuroda S. Enhancing antibody-dependent cellular phagocytosis by Re-education of tumor-associated macrophages with resiquimod-encapsulated liposomes. Biomaterials 2021; 268:120601. [PMID: 33338932 DOI: 10.1016/j.biomaterials.2020.120601] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 11/13/2020] [Accepted: 12/08/2020] [Indexed: 02/08/2023]
Abstract
Tumor-associated macrophages (TAMs) exist in nearly all tumors, and form a major part of the tumor microenvironment. TAMs are divided into two groups: tumor-suppressing M1 type and tumor-promoting M2 type. Most TAMs are educated by the tumor cells to become M2 type, which support tumor growth and make immunotherapy ineffective. Antibody-dependent cellular phagocytosis (ADCP) is an important mechanism for antibody cancer therapy, and this mechanism is dependent on TAMs. In this study, we found that the M1 type macrophages elicit a more efficient ADCP response than the M2 type, which was confirmed by three tumor cell lines, Raji, A431, and SKBR3, along with their corresponding therapeutic antibody Rituximab, anti-EGFR mouse monoclonal antibody (clone 528), and Trastuzumab, respectively. Resiquimod (R848), an immune system activating agent, has been shown to stimulate the M1 type macrophages, and re-educate the TAMs from M2 type to M1 type. By treating TAMs with R848, the ADCP response increased significantly in vitro and in in vivo mouse xenograft models. R848 encapsulated liposomes (R848-LPs) not only accumulated efficiently in the tumor tissues, but also distributed in the TAMs. Synergizing the R848-LPs with the anti-EGFR mouse monoclonal antibody (clone 528) significantly inhibited WiDr-tumor growth in vivo. Our study also revealed that the TAM-targeted delivery of R848 is able to re-educate the TAMs to M1 type, enhance the ADCP effect of the antibodies, and hence, enhance the anti-tumor effect of the therapeutic antibodies.
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22
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Carrara SC, Ulitzka M, Grzeschik J, Kornmann H, Hock B, Kolmar H. From cell line development to the formulated drug product: The art of manufacturing therapeutic monoclonal antibodies. Int J Pharm 2020; 594:120164. [PMID: 33309833 DOI: 10.1016/j.ijpharm.2020.120164] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 11/23/2020] [Accepted: 12/06/2020] [Indexed: 02/07/2023]
Abstract
Therapeutic monoclonal antibodies and related products have steadily grown to become the dominant product class within the biopharmaceutical market. Production of antibodies requires special precautions to ensure safety and efficacy of the product. In particular, minimizing antibody product heterogeneity is crucial as drug substance variants may impair the activity, efficacy, safety, and pharmacokinetic properties of an antibody, consequently resulting in the failure of a product in pre-clinical and clinical development. This review will cover the manufacturing and formulation challenges and advances of therapeutic monoclonal antibodies, focusing on improved processes to minimize variants and ensure batch-to-batch consistency. Processes put in place by regulatory agencies, such as Quality-by-Design (QbD) and current Good Manufacturing Practices (cGMP), and how their implementation has aided drug development in pharmaceutical companies will be reviewed. Advances in formulation and considerations on the intended use of a therapeutic antibody, including the route of administration and patient compliance, will be discussed.
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Affiliation(s)
- Stefania C Carrara
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Alarich-Weiss-Strasse 4, D-64287 Darmstadt, Germany; Ferring Darmstadt Laboratory, Alarich-Weiss-Strasse 4, D-64287 Darmstadt, Germany
| | - Michael Ulitzka
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Alarich-Weiss-Strasse 4, D-64287 Darmstadt, Germany; Ferring Darmstadt Laboratory, Alarich-Weiss-Strasse 4, D-64287 Darmstadt, Germany
| | - Julius Grzeschik
- Ferring Darmstadt Laboratory, Alarich-Weiss-Strasse 4, D-64287 Darmstadt, Germany
| | - Henri Kornmann
- Ferring International Center SA, CH-1162 Saint-Prex, Switzerland
| | - Björn Hock
- Ferring International Center SA, CH-1162 Saint-Prex, Switzerland.
| | - Harald Kolmar
- Institute for Organic Chemistry and Biochemistry, Technische Universität Darmstadt, Alarich-Weiss-Strasse 4, D-64287 Darmstadt, Germany.
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23
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Sun Z, Chen C, Li W, Martinez DR, Drelich A, Baek DS, Liu X, Mellors JW, Tseng CT, Baric RS, Dimitrov DS. Potent neutralization of SARS-CoV-2 by human antibody heavy-chain variable domains isolated from a large library with a new stable scaffold. MAbs 2020; 12:1778435. [PMID: 32544372 PMCID: PMC7531518 DOI: 10.1080/19420862.2020.1778435] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Effective therapies are urgently needed for COVID-19. Here we describe the identification of a new stable human immunoglobulin G1 heavy-chain variable (VH) domain scaffold that was used for the construction of a large library, lCAT6, of engineered human VHs. This library was panned against the receptor-binding domain (RBD) of the SARS-CoV-2 spike (S) glycoprotein. Two VH domains (VH ab6 and VH m397) were selected and fused to Fc for increased half-life in circulation. The VH-Fc ab6 and m397 specifically neutralized SARS-CoV-2 with high potencies (50% neutralization at 0.35 µg/ml and 1.5 µg/ml, respectively) as measured by two independent replication-competent virus neutralization assays. Ab6 and m397 competed with ACE2 for binding to RBD, suggesting a competitive mechanism of virus neutralization. These VH domains may have potential applications for prophylaxis and therapy of COVID-19 alone or in combination, as well as for diagnosis and as tools for research.
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Affiliation(s)
- Zehua Sun
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School , Pittsburgh, PA, USA
| | - Chuan Chen
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School , Pittsburgh, PA, USA
| | - Wei Li
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School , Pittsburgh, PA, USA
| | - David R Martinez
- Department of Epidemiology, University of North Carolina at Chapel Hill , Chapel Hill, NC, USA
| | - Aleksandra Drelich
- Department of Microbiology & Immunology, Centers for Biodefense and Emerging Diseases, Galveston National Laboratory , Galveston, TX, USA
| | - Du-San Baek
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School , Pittsburgh, PA, USA
| | - Xianglei Liu
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School , Pittsburgh, PA, USA
| | - John W Mellors
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School , Pittsburgh, PA, USA.,Abound Bio , Pittsburgh, PA, USA
| | - Chien-Te Tseng
- Department of Microbiology & Immunology, Centers for Biodefense and Emerging Diseases, Galveston National Laboratory , Galveston, TX, USA
| | - Ralph S Baric
- Department of Epidemiology, University of North Carolina at Chapel Hill , Chapel Hill, NC, USA
| | - Dimiter S Dimitrov
- Center for Antibody Therapeutics, Division of Infectious Diseases, Department of Medicine, University of Pittsburgh Medical School , Pittsburgh, PA, USA.,Abound Bio , Pittsburgh, PA, USA
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24
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Wang Q, Yan J. Isolation of Monoclonal Antibodies from Zika Virus-Infected Patient Samples. Methods Mol Biol 2020; 2142:261-88. [PMID: 32367373 DOI: 10.1007/978-1-0716-0581-3_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The combination of sorting antigen-specific memory B cells with determining immunoglobulin (Ig) genes at the single-cell level enables the isolation of monoclonal antibodies (mAbs) in individuals. This method requires a small amount of blood (usually 10 mL) and is rapid (less than 2 weeks to isolate antigen-specific mAbs). Due to the application of antigens as the bait to capture the specific memory B cells, the majority of isolated mAbs are true binders to the antigen, which increases the isolation efficiency. Here, applying this approach, we describe the characterization of mAbs against Zika virus from a convalescent patient sample. From 10 mL whole blood, we sorted 33 Zika envelope (E) protein-interacting single memory B cells. The Ig genes from 15 cells were determined, and 13 mAbs were found that bind to Zika E protein with varied binding affinities.
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Syed K, Naguib S, Liu ZJ, Cimmino L, Yang FC. Novel combinations to improve hematopoiesis in myelodysplastic syndrome. Stem Cell Res Ther 2020; 11:132. [PMID: 32197634 DOI: 10.1186/s13287-020-01647-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 02/28/2020] [Accepted: 03/10/2020] [Indexed: 12/21/2022] Open
Abstract
Myelodysplastic syndrome (MDS) represents a heterogeneous group of clonal hematopoietic disorders, which is characterized by cytopenias in the peripheral blood and bone marrow dysplasia due to ineffective hematopoiesis. Patients with MDS have an increased risk of transformation to acute myeloid leukemia (AML). Although the molecular basis of MDS is heterogeneous, several studies demonstrated the significant contribution of the dysregulated immune system in accelerating MDS progression. The immunosuppressive tumor microenvironment is shown to induce tolerance of MDS blasts, which may result in a further accumulation of genetic aberrations and lead to the disease progression. Increasing evidence shows an expansion of myeloid-derived suppressor cells (MDSCs), a population of inflammation-associated immature cells, in patients with MDS. Interestingly, the increased MDSC populations are shown to be correlated with a risk of disease progression in MDS. In addition, MDS is highly prevalent in aged individuals with non-hematology co-morbidities who are fragile for chemotherapy. Increasing research effort is devoting to identify novel agents to specific targeting of the MDSC population for MDS treatment.
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26
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Wohlrab J. [Basics of the pharmacology of biopharmaceuticals]. Hautarzt 2019; 70:926-33. [PMID: 31712972 DOI: 10.1007/s00105-019-04502-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Biopharmaceuticals are pharmaceutical drug products or preparations of pharmaceutical drugs that are of biological origin or are manufactured from biological material. The spectrum of biological drugs is extensive and includes substances isolated from biological material, recombinant RNA molecules, proteins as well as full antibodies, antibody fragments or antibody-drug conjugates. The special features of the molecular properties and functions of biopharmaceuticals require a highly complex, variable structure. Due to the specificity of intended pharmacodynamic effects on a complex biological regulatory system, particularities regarding undesired effects, pharmacokinetics, and safety have to be considered both regulatory and clinical.
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Furmaniak J, Sanders J, Clark J, Wilmot J, Sanders P, Li Y, Rees Smith B. Preclinical studies on the toxicology, pharmacokinetics and safety of K1-70 TM a human monoclonal autoantibody to the TSH receptor with TSH antagonist activity. Auto Immun Highlights 2019; 10:11. [PMID: 32257067 PMCID: PMC7065368 DOI: 10.1186/s13317-019-0121-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2019] [Accepted: 10/09/2019] [Indexed: 12/27/2022]
Abstract
Background The human monoclonal autoantibody K1-70™ binds to the TSH receptor (TSHR) with high affinity and blocks TSHR cyclic AMP stimulation by TSH and thyroid stimulating autoantibodies. Methods The preclinical toxicology assessment following weekly intravenous (IV) or intramuscular (IM) administration of K1-70™ in rats and cynomolgus monkeys for 29 days was carried out. An assessment of delayed onset toxicity and/or reversibility of toxicity was made during a further 4 week treatment free period. The pharmacokinetic parameters of K1-70™ and the effects of different doses of K1-70™ on serum thyroid hormone levels in the study animals were determined in rats and primates after IV and IM administration. Results Low serum levels of T3 and T4 associated with markedly elevated levels of TSH were observed in the study animals following IV and IM administration of K1-70™. The toxicological findings were attributed to the pharmacology of K1-70™ and were consistent with the hypothyroid state. The no observable adverse effect level (NOAEL) could not be established in the rat study while in the primate study it was 100 mg/kg/dose for both males and females. Conclusions The toxicology, pharmacodynamic and pharmacokinetic data in this preclinical study were helpful in designing the first in human study with K1-70™ administered to subjects with Graves’ disease.
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Affiliation(s)
- Jadwiga Furmaniak
- AV7 Limited, FIRS Laboratories, Parc Ty Glas, Llanishen, Cardiff, CF14 5DU UK
| | - Jane Sanders
- AV7 Limited, FIRS Laboratories, Parc Ty Glas, Llanishen, Cardiff, CF14 5DU UK
| | - Jill Clark
- AV7 Limited, FIRS Laboratories, Parc Ty Glas, Llanishen, Cardiff, CF14 5DU UK
| | - Jane Wilmot
- AV7 Limited, FIRS Laboratories, Parc Ty Glas, Llanishen, Cardiff, CF14 5DU UK
| | - Paul Sanders
- AV7 Limited, FIRS Laboratories, Parc Ty Glas, Llanishen, Cardiff, CF14 5DU UK
| | - Yang Li
- AV7 Limited, FIRS Laboratories, Parc Ty Glas, Llanishen, Cardiff, CF14 5DU UK
| | - Bernard Rees Smith
- AV7 Limited, FIRS Laboratories, Parc Ty Glas, Llanishen, Cardiff, CF14 5DU UK
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Kumar R, Parray HA, Shrivastava T, Sinha S, Luthra K. Phage display antibody libraries: A robust approach for generation of recombinant human monoclonal antibodies. Int J Biol Macromol 2019; 135:907-918. [PMID: 31170490 DOI: 10.1016/j.ijbiomac.2019.06.006] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 06/02/2019] [Accepted: 06/02/2019] [Indexed: 12/29/2022]
Abstract
Monoclonal antibodies (mAbs) and their derivatives have achieved remarkable success as medicine, targeting both diagnostic and therapeutic applications associated with communicable and non-communicable diseases. In the last 3 to 4 decades, tremendous success has been manifested in the field of cancer therapy, autoimmune diseases, cardiovascular and infectious diseases. MAbs are the fastest growing class of biopharmaceuticals, with more than 25 derivatives are in clinical use and 7 of these have been isolated through phage display technology. Phage display technology has gained impetus in the field of medical and health sciences, as a large repertoire of diverse recombinant antibodies, targeting various antigens have been generated in a short span of time. A prominent number of phage display derived antibodies are already approved for therapy and significant numbers are currently in clinical trials. In this review we have discussed the various strategies employed for generation of monoclonal antibodies; their advantages, limitations and potential therapeutic applications. We also discuss the potential of phage display antibody libraries in isolation of monoclonal antibodies.
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Affiliation(s)
- Rajesh Kumar
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India; Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India.
| | - Hilal Ahmed Parray
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Tripti Shrivastava
- Translational Health Science & Technology Institute, NCR Biotech Science Cluster, Faridabad, Haryana 121001, India
| | - Subrata Sinha
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India
| | - Kalpana Luthra
- Department of Biochemistry, All India Institute of Medical Sciences, New Delhi, India.
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Barderas R, Benito-Peña E. The 2018 Nobel Prize in Chemistry: phage display of peptides and antibodies. Anal Bioanal Chem 2019; 411:2475-2479. [PMID: 30888467 DOI: 10.1007/s00216-019-01714-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2019] [Accepted: 02/25/2019] [Indexed: 12/29/2022]
Abstract
One-half of the 2018 Nobel Prize in Chemistry was awarded jointly to George P. Smith and Sir Gregory P. Winter "for the phage display of peptides and antibodies". This feature article summarizes significant achievements leading to the development of phage display of peptides and antibodies, where a bacteriophage is genetically modified to display peptides and proteins, with the primary aim of producing new biopharmaceuticals. These significant achievements are proven to be useful for the development of phage-based bioassays and biosensors.
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Affiliation(s)
- Rodrigo Barderas
- Functional Proteomics Unit, UFIEC, Chronic Disease Programme, Instituto de Salud Carlos III, Majadahonda, 28220, Madrid, Spain.
| | - Elena Benito-Peña
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040, Madrid, Spain.
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Abstract
Engineering the fragment crystallizable (Fc) of human IgG can bring improved effector functions to monoclonal antibodies and Fc-fusion-based medicines and vaccines. Such Fc-effector functions are largely controlled by posttranslational modifications (PTMs) within the Fc, including the addition of glycans that introduce structural and functional heterogeneity to this class of therapeutic. Here, we describe a detailed method to allow the detection of hyper-sialylated Fcs to glycan receptors that will facilitate the future development of new mAbs and Fc-fragment therapies and vaccines.
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31
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Olive D. Fonctions de CD28, CTLA-4 et PD-1. Bull Cancer 2018; 105 Suppl 1:S3-S15. [PMID: 30595196 DOI: 10.1016/S0007-4551(18)30385-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
FUNCTIONS OF CD28, CTLA-4 AND PD-1: 2018 is time in between since immunotherapies are recognized as treatments in cancer even in patients where they were supposed to be not or poorly active. We will focus on a review on facts meaning data reproduced during the last thirty-five years and what they have provided. We will focus on these data and question them regarding the novel and unexpected clinical that were not anticipated by the preclinical data. Consequently we will mainly present data regarding CD28, CTLA-4PD-1 and their ligands. We will not address the complex network of proteins involved in cosignalling in tissues.
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Abstract
The major reasons for developing human monoclonal antibodies were to be able to efficiently manipulate their effector functions while avoiding immunogenicity seen with rodent antibodies. Those effector functions involve interactions with the complement system and naturally occurring Fc receptors on diverse blood white cells. Antibody immunogenicity results from the degree to which the host immune system can recognize and react to these therapeutic agents. Thus far, there is still no generally applicable technology guaranteed to render therapeutic antibodies antigenically silent. This is not to say that the task is impossible, but rather that we need to train the immune system to help us. This can be achieved if we take advantage of natural mechanisms by which an individual can be rendered tolerant of "foreign" antigens, and as a corollary minimize the potential immunogenicity of any contaminating protein aggregates, or "aggregates" arising from antibodies complexing with their antigen. I here summarize our efforts to engineer antibodies to harness optimal effector functions, while also minimizing their immunogenicity. Potential avenues to achieve the latte are predicted from classical work showing that monomeric "foreign" immunoglobulins are good tolerogens, while aggregates of immunoglobulins ate intrinsically immunogenic. Consequently, I argue that one solution to the immunogenicity problem lies in ensuring a temporal quantitative advantage of tolerogenic non-cell-bound monomer over the cell-binding immunogenic form.
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Affiliation(s)
- Herman Waldmann
- Sir William Dunn School of Pathology, Oxford University, Oxford, UK.
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33
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Oyer JL, Gitto SB, Altomare DA, Copik AJ. PD-L1 blockade enhances anti-tumor efficacy of NK cells. Oncoimmunology 2018; 7:e1509819. [PMID: 30377572 PMCID: PMC6205063 DOI: 10.1080/2162402x.2018.1509819] [Citation(s) in RCA: 91] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 08/01/2018] [Accepted: 08/04/2018] [Indexed: 12/31/2022] Open
Abstract
Anti-PD-1/anti-PD-L1 therapies have shown success in cancer treatment but responses are limited to ~ 15% of patients with lymphocyte infiltrated, PD-L1 positive tumors. Hence, strategies that increase PD-L1 expression and tumor infiltration should make more patients eligible for PD-1/PD-L1 blockade therapy, thus improving overall outcomes. PD-L1 expression on tumors is induced by IFNγ, a cytokine secreted by NK cells. Therefore, we tested if PM21-particle expanded NK cells (PM21-NK cells) induced expression of PD-L1 on tumors and if anti-PD-L1 treatment enhanced NK cell anti-tumor efficacy in an ovarian cancer model. Studies here showed that PM21-NK cells secrete high amounts of IFNγ and that adoptively transferred PM21-NK cells induce PD-L1 expression on SKOV-3 cells in vivo. The induction of PD-L1 expression on SKOV-3 cells coincided with the presence of regulatory T cells (Tregs) in the abdominal cavity and within tumors. In in vitro experiments, anti-PD-L1 treatment had no direct effect on cytotoxicity or cytokine secretion by predominantly PD-1 negative PM21-NK cells in response to PD-L1+ targets. However, significant improvement of NK cell anti-tumor efficacy was observed in vivo when combined with anti-PD-L1. PD-L1 blockade also resulted in increased in vivo NK cell persistence and retention of their cytotoxic phenotype. These results support the use of anti-PD-L1 in combination with NK cell therapy regardless of initial tumor PD-L1 status and indicate that NK cell therapy would likely augment the applicability of anti-PD-L1 treatment.
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Affiliation(s)
- Jeremiah L Oyer
- Burnett School of Biomedical Sciences, University of Central Florida, College of Medicine, Orlando, FL, USA
| | - Sarah B Gitto
- Burnett School of Biomedical Sciences, University of Central Florida, College of Medicine, Orlando, FL, USA
| | - Deborah A Altomare
- Burnett School of Biomedical Sciences, University of Central Florida, College of Medicine, Orlando, FL, USA
| | - Alicja J Copik
- Burnett School of Biomedical Sciences, University of Central Florida, College of Medicine, Orlando, FL, USA
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34
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Casal JI, Bartolomé RA. RGD cadherins and α2β1 integrin in cancer metastasis: A dangerous liaison. Biochim Biophys Acta Rev Cancer 2018; 1869:321-332. [PMID: 29673969 DOI: 10.1016/j.bbcan.2018.04.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 04/13/2018] [Accepted: 04/14/2018] [Indexed: 12/24/2022]
Abstract
We propose a new cadherin family classification comprising epithelial cadherins (cadherin 17 [CDH17], cadherin 16, VE-cadherin, cadherin 6 and cadherin 20) containing RGD motifs within their sequences. Expression of some RGD cadherins is associated with aggressive forms of cancer during the late stages of metastasis, and CDH17 and VE-cadherin have emerged as critical actors in cancer metastasis. After binding to α2β1 integrin, these cadherins promote integrin β1 activation, and thereby cell adhesion, invasion and proliferation, in liver and lung metastasis. Activation of α2β1 integrin provokes an affinity increase for type IV collagen, a major component of the basement membrane and a critical partner for cell anchoring in liver and other metastatic organs. Activation of α2β1 integrin by RGD motifs breaks an old paradigm of integrin classification and supports an important role of this integrin in cancer metastasis. Recently, synthetic peptides containing the RGD motif of CDH17 elicited highly specific and selective antibodies that block the ability of CDH17 RGD to activate α2β1 integrin. These monoclonal antibodies inhibit metastatic colonization in orthotopic mouse models of liver and lung metastasis for colorectal cancer and melanoma, respectively. Hopefully, blocking the cadherin RGD ligand capacity will give us control over the integrin activity in solid tumors metastasis, paving the way for development of new agents of cancer treatment.
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Affiliation(s)
- J Ignacio Casal
- Department of Molecular Biomedicine, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28039 Madrid, Spain.
| | - Rubén A Bartolomé
- Department of Molecular Biomedicine, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28039 Madrid, Spain
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35
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Cervera-Carrascon V, Siurala M, Santos JM, Havunen R, Tähtinen S, Karell P, Sorsa S, Kanerva A, Hemminki A. TNFa and IL-2 armed adenoviruses enable complete responses by anti-PD-1 checkpoint blockade. Oncoimmunology 2018; 7:e1412902. [PMID: 29721366 DOI: 10.1080/2162402x.2017.1412902] [Citation(s) in RCA: 82] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 11/02/2017] [Accepted: 11/20/2017] [Indexed: 02/07/2023] Open
Abstract
Releasing the patient's immune system against their own malignancy by the use of checkpoint inhibitors is delivering promising results. However, only a subset of patients currently benefit from them. One major limitation of these therapies relates to the inability of T cells to detect or penetrate into the tumor resulting in unresponsiveness to checkpoint inhibition. Virotherapy is an attractive tool for enabling checkpoint inhibitors as viruses are naturally recognized by innate defense elements which draws the attention of the immune system. Besides their intrinsic immune stimulating properties, the adenoviruses used here are armed to express tumor necrosis factor alpha (TNFa) and interleukin-2 (IL-2). These cytokines result in immunological danger signaling and multiple appealing T-cell effects, including trafficking, activation and propagation. When these viruses were injected into B16.OVA melanoma tumors in animals concomitantly receiving programmed cell-death protein 1 (PD-1) blocking antibodies both tumor growth control (p < 0.0001) and overall survival (p < 0.01) were improved. In this set-up, the addition of adoptive cell therapy with OT-I lymphocytes did not increase efficacy further. When virus injections were initiated before antibody treatment in a prime-boost approach, 100% of tumors regressed completely and all mice survived. Viral expression of IL2 and TNFa altered the cytokine balance in the tumor microenvironment towards Th1 and increased the intratumoral proportion of CD8+ and conventional CD4+ T cells. These preclinical studies provide the rationale and schedule for a clinical trial where oncolytic adenovirus coding for TNFa and IL-2 (TILT-123) is used in melanoma patients receiving an anti-PD-1 antibody.
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Affiliation(s)
- V Cervera-Carrascon
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - M Siurala
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - J M Santos
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - R Havunen
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - S Tähtinen
- Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - P Karell
- Institute for Molecular Medicine Finland (FIMM), University of Helsinki, Helsinki, Uusima, Finland
| | - S Sorsa
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland
| | - A Kanerva
- Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland.,Department of Obstetrics and Gynecology, Helsinki University Central Hospital, Helsinki, Uusima, Finland
| | - A Hemminki
- TILT Biotherapeutics Ltd, Helsinki, Uusima, Finland.,Department of Oncology, Cancer Gene Therapy Group, Faculty of Medicine, University of Helsinki, Helsinki, Uusima, Finland.,Helsinki University Hospital Comprehensive Cancer Center, Helsinki, Uusima, Finland
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36
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Jung K, Ha JH, Kim JE, Kim JA, Kim YJ, Kim CH, Kim YS. Heterodimeric Fc-fused IL12 shows potent antitumor activity by generating memory CD8 + T cells. Oncoimmunology 2018; 7:e1438800. [PMID: 29900039 DOI: 10.1080/2162402x.2018.1438800] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Revised: 01/19/2018] [Accepted: 02/05/2018] [Indexed: 01/07/2023] Open
Abstract
Interleukin-12 (IL12) (p35/p40 complex) is a heterodimeric cytokine with potent anti-tumor activity. However, its short serum half-life and high dose-related toxicities limit its clinical efficacy. Here, we constructed heterodimeric immunoglobulin Fc-fused mouse IL12 (mIL12) in a monovalent binding format (mono-mIL12-Fc) to generate long-acting mIL12 in the naturally occurring heterodimeric form. Mono-mIL12-Fc exhibited a much longer plasma half-life than recombinant mIL12, enabling twice-weekly systemic injections to remove established tumors in syngeneic mouse models. Mono-mIL12-Fc was more potent than wild-type Fc-based bivalent-binding IL12-Fc (bi-mIL12-Fc) for eradicating large established immunogenic tumors without noticeable toxicities by enhancing interferon-γ production and the proliferation of immune effector cells in tumors. More importantly, mono-mIL12-Fc triggered weaker IL12 signaling than bi-mIL12-Fc, favoring the generation of functional and protective memory CD8+ T cells. Our results demonstrate that heterodimeric-Fc-fused IL12 is a suitable format for augmenting adaptive CD8+ T cell immune responses, providing a practical alternative to the systemic administration of IL12 for antitumor therapy.
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Affiliation(s)
- Keunok Jung
- Priority Research Center for Molecular Science & Technology, Ajou University, Suwon, Republic of Korea
| | - Ji-Hee Ha
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Jung-Eun Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Jeong-Ah Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Ye-Jin Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
| | - Chul-Ho Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea.,Department of Otolaryngology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Yong-Sung Kim
- Department of Molecular Science and Technology, Ajou University, Suwon, Republic of Korea
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37
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de Silva AM, Rey FA, Young PR, Hilgenfeld R, Vasudevan SG. Viral Entry and NS1 as Potential Antiviral Drug Targets. Adv Exp Med Biol 2018; 1062:107-13. [PMID: 29845528 DOI: 10.1007/978-981-10-8727-1_8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A general discussion on viral entry and NS1 as potential drug targets was held at the Tofo Advanced Study Week (TASW) on Emerging Viral Diseases in September 2016. The opportunities and gaps for developing therapeutic countermeasures, to take advantage of the high-resolution cryo-electron microscopy structures of dengue and Zika viruses as well as the novel features of NS1 revealed by the 3D structures, were deliberated.
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38
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Abstract
Antibody identification by phage display on protein or peptide targets is well established and many protocols are available. But there are many targets that cannot be expressed recombinantly or, like peptides, do not reflect correct folding of the protein. Most of these targets are cell surface receptors. Here, we describe a protocol for a panning strategy on cells to obtain specific binders to cell surface receptors. A depletion step is included to prevent enrichment of antibodies that bind to unwanted targets. Each step of the protocol is explained and variations of this protocol are given.
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39
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Goodman AM, Kato S, Cohen PR, Boichard A, Frampton G, Miller V, Stephens PJ, Daniels GA, Kurzrock R. Genomic landscape of advanced basal cell carcinoma: Implications for precision treatment with targeted and immune therapies. Oncoimmunology 2017; 7:e1404217. [PMID: 29399405 PMCID: PMC5790366 DOI: 10.1080/2162402x.2017.1404217] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 11/06/2017] [Accepted: 11/08/2017] [Indexed: 01/16/2023] Open
Abstract
Metastatic basal cell cancer (BCC) is an ultra-rare malignancy with no approved therapies beyond Hedgehog inhibitors. We characterized the genomics, tumor mutational burden (TMB), and anti-PD-1 therapy responses in patients with locally advanced or metastatic BCC. Overall, 2,039 diverse cancer samples that had undergone comprehensive genomic profiling (CGP) were reviewed. Eight patients with locally advanced/metastatic BCC were identified (two had two CGP analyses; total, 10 biopsies). Two tumors demonstrated PD-L1 amplification. Seven patients had >1 actionable alteration. The TMB (mutations/mb) (median (range)) was 90 (3-103) for the BCCs versus 4 (1-860) for 1637 cancers other than BCC (P < 0.0001). Median progression-free survival (PFS) for all four patients treated with PD-1 blockade was 10.7 months (range, 3.8 to 17.6+ months); three patients had an objective response. In conclusion, advanced/metastatic BCC often has biological features (high TMB; PD-L1 amplification) predictive of immunotherapy benefit, and patients frequently respond to PD-1 blockade.
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Affiliation(s)
- Aaron M. Goodman
- Department of Medicine, Division of Hematology/Oncology, University of California San Diego, La Jolla, CA, USA
- Center for Personalized Cancer Therapy, University of California San Diego, La Jolla, CA, USA
- Department of Medicine, Division of Blood and Marrow Transplantation, University of California San Diego, La Jolla, CA, USA
| | - Shumei Kato
- Department of Medicine, Division of Hematology/Oncology, University of California San Diego, La Jolla, CA, USA
- Center for Personalized Cancer Therapy, University of California San Diego, La Jolla, CA, USA
| | - Philip R. Cohen
- Department of Dermatology, University of California San Diego, La Jolla, CA, USA
| | - Amélie Boichard
- Center for Personalized Cancer Therapy, University of California San Diego, La Jolla, CA, USA
| | | | | | | | - Gregory A. Daniels
- Department of Medicine, Division of Hematology/Oncology, University of California San Diego, La Jolla, CA, USA
| | - Razelle Kurzrock
- Department of Medicine, Division of Hematology/Oncology, University of California San Diego, La Jolla, CA, USA
- Center for Personalized Cancer Therapy, University of California San Diego, La Jolla, CA, USA
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40
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Ye B, Smerin D, Gao Q, Kang C, Xiong X. High-throughput sequencing of the immune repertoire in oncology: Applications for clinical diagnosis, monitoring, and immunotherapies. Cancer Lett 2018; 416:42-56. [PMID: 29247824 DOI: 10.1016/j.canlet.2017.12.017] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 12/11/2017] [Accepted: 12/11/2017] [Indexed: 12/21/2022]
Abstract
The diagnostic, monitoring and therapeutic options for cancers currently remain limited. These limitations represent a large threat to human health. Adaptive immunity, which is dependent on diverse repertoires of B cell receptors (BCRs) and T cell receptors (TCRs), plays a critical role in the anti-tumor immune response. Modulation and surveillance of adaptive immunity has become a powerful weapon to combat cancers. Recently, the high-throughput sequencing of immune repertoire (HTS-IR) technology, which provides a robust tool for deep sequencing repertoires of BCRs or TCRs, has been applied in the development of tumor biomarkers and immunotherapeutics for cancers. This review will first provide an overview of the advancement of HTS-IR technology at the population-cell and single-cell levels. It will then provide a current summary of the applications of HTS-IR technology in the diagnosis and monitoring of minimal residual disease (MRD), focusing on immune reconstitution after the treatment of allogeneic hematopoietic stem cell transplantation (allo-HSCT) in B/T-cell malignancies, and the precise detection of tumor-infiltrating lymphocytes (TILs) in non-B/T-cell malignancies. Finally, current advances of HTS-IR technology in cancer immunotherapeutic applications, such as therapeutic antibodies, CAR-T cell based-adoptive immunotherapies, and neoantigen-specific TCR-T cell-based adoptive immunotherapies, will be introduced.
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Abstract
The therapeutic arsenal in solid tumors comprises different anticancer strategies with diverse chemotherapeutic agents and a growing number of biological substances. Large clinical study-based chemotherapeutic protocols combined with biologicals have become an important component in (neo-) adjuvant therapy alongside surgery in solid cancers as well as radiation therapy in some instances. In recent years, monoclonal antibodies have entered the mainstream of cancer therapy. Their first use was as antagonists of oncogenic receptor tyrosine kinases, but today monoclonal antibodies have emerged as long-sought vehicles for the targeted delivery of potent chemotherapeutic agents and as powerful tools to manipulate anticancer immune responses. There is a growing number of FDA approved monoclonal antibodies and small molecules targeting specific types of cancer suggestive of the clinical relevance of this approach.Targeted cancer therapies , also referred to as personalized medicine, are being studied for use alone, in combination with other targeted therapies, and in combination with chemotherapy. The use of monoclonal antibodies in colorectal and gastric cancer for example have shown best outcome when combined with chemotherapy, even though single agent anti-EGFR antibodies seem to be active in particular setting of metastatic colorectal cancer patients. However, it is not well defined whether the addition of anti-VEGF - and anti-EGFR strategies to chemotherapy could improve outcome in those patients susceptible to colorectal cancer-related metastases resection. Among the most promising approaches to activating therapeutic antitumor immunity is the blockade of immune checkpoints, exemplified by the recently FDA-approved agent, Ipilimumab, an antibody that blocks the coinhibitory receptor CTLA-4. Capitalizing on the success of Ipilimumab, agents that target a second coinhibitory receptor, PD-1, or its ligand, PD-L1, are in clinical development. This section attempts to discuss recent progress of targeted agents and in tackling a more general target applicable to gastrointestinal cancer .
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42
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Elgundi Z, Reslan M, Cruz E, Sifniotis V, Kayser V. The state-of-play and future of antibody therapeutics. Adv Drug Deliv Rev 2017; 122:2-19. [PMID: 27916504 DOI: 10.1016/j.addr.2016.11.004] [Citation(s) in RCA: 200] [Impact Index Per Article: 28.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2016] [Revised: 11/26/2016] [Accepted: 11/28/2016] [Indexed: 12/22/2022]
Abstract
It has been over four decades since the development of monoclonal antibodies (mAbs) using a hybridoma cell line was first reported. Since then more than thirty therapeutic antibodies have been marketed, mostly as oncology, autoimmune and inflammatory therapeutics. While antibodies are very efficient, their cost-effectiveness has always been discussed owing to their high costs, accumulating to more than one billion dollars from preclinical development through to market approval. Because of this, therapeutic antibodies are inaccessible to some patients in both developed and developing countries. The growing interest in biosimilar antibodies as affordable versions of therapeutic antibodies may provide alternative treatment options as well potentially decreasing costs. As certain markets begin to capitalize on this opportunity, regulatory authorities continue to refine the requirements for demonstrating quality, efficacy and safety of biosimilar compared to originator products. In addition to biosimilars, innovations in antibody engineering are providing the opportunity to design biobetter antibodies with improved properties to maximize efficacy. Enhancing effector function, antibody drug conjugates (ADC) or targeting multiple disease pathways via multi-specific antibodies are being explored. The manufacturing process of antibodies is also moving forward with advancements relating to host cell production and purification processes. Studies into the physical and chemical degradation pathways of antibodies are contributing to the design of more stable proteins guided by computational tools. Moreover, the delivery and pharmacokinetics of antibody-based therapeutics are improving as optimized formulations are pursued through the implementation of recent innovations in the field.
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Abstract
The development of therapeutic antibodies represents a revolutionary change in medical therapy for digestive diseases. Beginning with the initial studies that confirmed the pathogenicity of cytokines in inflammatory bowel disease, the development and application of therapeutic antibodies brought challenges and insights into their potential and optimal use. Infliximab was the first biological drug approved for use in Crohn's disease and ulcerative colitis. The lessons learned from infliximab include the importance of immunogenicity and the influence of pharmacokinetics on disease response and outcomes. Building on this foundation, other therapeutic antibodies achieved approval for inflammatory bowel disease and many more are in development for several digestive diseases. In this review, we reflect on the history of therapeutic antibodies and discuss current practice and future directions for the field.
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Affiliation(s)
- M Anthony Sofia
- Inflammatory Bowel Disease Center, University of Chicago Medicine, 5841 South Maryland Avenue, MC 4076, Chicago, IL, 60637, USA.
| | - David T Rubin
- Inflammatory Bowel Disease Center, University of Chicago Medicine, 5841 South Maryland Avenue, MC 4076, Chicago, IL, 60637, USA
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Abstract
INTRODUCTION Therapeutic antibodies have grown to become an important product class within the biopharmaceutical market. A prerequisite to their commercialization is adequate patent protection. Disclosure requirements and the types of claims available in different jurisdictions can impact the scope of protection available for antibodies. Areas covered: A comparative review of statutory bases, patent office practices and selected decisions in Canada, the United States and the United Kingdom related to disclosure requirements is provided. Expert opinion: Differences in disclosure requirements exist in different jurisdictions which can impact the type of claims obtained and their survival when attacked in litigation. Including a wide variety of claim types is a key strategy to ensuring therapeutic antibodies are adequately protected. Method of use claims may provide advantages and broader protection in some circumstances and should also be considered.
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Affiliation(s)
- Carmela De Luca
- a Bereskin & Parr LLP, Life Sciences Group/Montreal and Toronto , Canada
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45
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Huber V, Camisaschi C, Berzi A, Ferro S, Lugini L, Triulzi T, Tuccitto A, Tagliabue E, Castelli C, Rivoltini L. Cancer acidity: An ultimate frontier of tumor immune escape and a novel target of immunomodulation. Semin Cancer Biol 2017; 43:74-89. [PMID: 28267587 DOI: 10.1016/j.semcancer.2017.03.001] [Citation(s) in RCA: 347] [Impact Index Per Article: 49.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 02/22/2017] [Accepted: 03/01/2017] [Indexed: 12/21/2022]
Abstract
The link between cancer metabolism and immunosuppression, inflammation and immune escape has generated major interest in investigating the effects of low pH on tumor immunity. Indeed, microenvironmental acidity may differentially impact on diverse components of tumor immune surveillance, eventually contributing to immune escape and cancer progression. Although the molecular pathways underlying acidity-related immune dysfunctions are just emerging, initial evidence indicates that antitumor effectors such as T and NK cells tend to lose their function and undergo a state of mostly reversible anergy followed by apoptosis, when exposed to low pH environment. At opposite, immunosuppressive components such as myeloid cells and regulatory T cells are engaged by tumor acidity to sustain tumor growth while blocking antitumor immune responses. Local acidity could also profoundly influence bioactivity and distribution of antibodies, thus potentially interfering with the clinical efficacy of therapeutic antibodies including immune checkpoint inhibitors. Hence tumor acidity is a central regulator of cancer immunity that orchestrates both local and systemic immunosuppression and that may offer a broad panel of therapeutic targets. This review outlines the fundamental pathways of acidity-driven immune dysfunctions and sheds light on the potential strategies that could be envisaged to potentiate immune-mediated tumor control in cancer patients.
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Le NPL, Bowden TA, Struwe WB, Crispin M. Immune recruitment or suppression by glycan engineering of endogenous and therapeutic antibodies. Biochim Biophys Acta 2016; 1860:1655-68. [PMID: 27105835 PMCID: PMC4922387 DOI: 10.1016/j.bbagen.2016.04.016] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Revised: 04/15/2016] [Accepted: 04/16/2016] [Indexed: 12/20/2022]
Abstract
Human serum IgG contains multiple glycoforms which exhibit a range of binding properties to effector molecules such as cellular Fc receptors. Emerging knowledge of how the Fc glycans contribute to the antibody structure and effector functions has opened new avenues for the exploitation of defined antibody glycoforms in the treatment of diseases. Here, we review the structure and activity of antibody glycoforms and highlight developments in antibody glycoengineering by both the manipulation of the cellular glycosylation machinery and by chemoenzymatic synthesis. We discuss wide ranging applications of antibody glycoengineering in the treatment of cancer, autoimmunity and inflammation. This article is part of a Special Issue entitled "Glycans in personalised medicine" Guest Editor: Professor Gordan Lauc.
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Affiliation(s)
- Ngoc Phuong Lan Le
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom
| | - Thomas A Bowden
- Division of Structural Biology, University of Oxford, Wellcome Trust Centre for Human Genetics, Roosevelt Drive, Oxford OX3 7BN, United Kingdom
| | - Weston B Struwe
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom
| | - Max Crispin
- Oxford Glycobiology Institute, Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom.
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Todoroki K, Nakano T, Eda Y, Ohyama K, Hayashi H, Tsuji D, Min JZ, Inoue K, Iwamoto N, Kawakami A, Ueki Y, Itoh K, Toyo'oka T. Bioanalysis of bevacizumab and infliximab by high-temperature reversed-phase liquid chromatography with fluorescence detection after immunoaffinity magnetic purification. Anal Chim Acta 2016; 916:112-9. [PMID: 27016445 DOI: 10.1016/j.aca.2016.02.029] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Revised: 02/12/2016] [Accepted: 02/19/2016] [Indexed: 12/20/2022]
Abstract
This study presents two simple and rapid methods for the quantification of therapeutic mAbs based on LC. Two mAbs (bevacizumab and infliximab) in plasma samples were purified using magnetic beads immobilized with a commercially-available idiotype antibody for each mAb. Purified mAbs were separated with HT-RPLC and detected with their native fluorescence. Using immunoaffinity beads, each mAb was selectively purified and detected as a single peak in the chromatogram. The HT-RPLC achieved good separation for the mAbs with sharp peaks within 20 min. The calibration curves of the two mAbs ranged from 1 to 20 μg mL(-1) (bevacizumab) and 1-10 μg mL(-1) (infliximab), and they had strong correlation coefficients (r(2) > 0.998). The LOD of bevacizumab and infliximab was 0.07 and 0.15 μg mL(-1), and the LLOQ of bevacizumab and infliximab was 0.12 and 0.25 μg mL(-1), respectively. Thus, the sensitivities were sufficient for clinical analysis. Immunoaffinity purification with HT-RPLC produced a selective and accurate bioanalysis without an LC-MS/MS instrument. Both methods could become general-purpose analytical methods and complement the results obtained with conventional LBA.
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Affiliation(s)
- Kenichiro Todoroki
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Tatsuki Nakano
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Yasuhiro Eda
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Kaname Ohyama
- Department of Pharmacy Practice, Graduate School of Biomedical Sciences, Nagasaki University, Japan
| | - Hideki Hayashi
- Laboratory of Pharmacy Practice and Social Science, Gifu Pharmaceutical University, Gifu, Japan
| | - Daiki Tsuji
- Laboratory of Clinical Pharmacology and Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Jun Zhe Min
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Koichi Inoue
- Laboratory of Clinical and Analytical Chemistry, College of Pharmaceutical Sciences, Ritsumeikan University, Japan
| | - Naoki Iwamoto
- Unit of Translational Medicine, Department of Immunology and Rheumatology, Graduate School of Biomedical Sciences, Nagasaki University, Japan
| | - Atsushi Kawakami
- Unit of Translational Medicine, Department of Immunology and Rheumatology, Graduate School of Biomedical Sciences, Nagasaki University, Japan
| | | | - Kunihiko Itoh
- Laboratory of Clinical Pharmacology and Genetics, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan
| | - Toshimasa Toyo'oka
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, Shizuoka, Japan.
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Fibriansah G, Lok SM. The development of therapeutic antibodies against dengue virus. Antiviral Res 2016; 128:7-19. [PMID: 26794397 DOI: 10.1016/j.antiviral.2016.01.002] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Revised: 01/06/2016] [Accepted: 01/11/2016] [Indexed: 01/18/2023]
Abstract
Dengue virus, a positive-sense RNA virus, is one of the major human pathogens transmitted by mosquitoes. However, no fully effective licensed dengue vaccines or therapeutics are currently available. Several potent neutralizing antibodies against DENV have been isolated from mice and humans, and the characterization of their properties by biochemical and biophysical methods have revealed important insights for development of therapeutic antibodies. In this review, we summarize recently reported antibody-antigen complex structures, their likely neutralization mechanisms and enhancement propensities, as well as their prophylactic and therapeutic capabilities in mouse models. This article forms part of a symposium on flavivirus drug discovery in the journal Antiviral Research.
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Milongo D, Vieu G, Blavy S, Del Bello A, Sallusto F, Rostaing L, Kamar N, Congy-Jolivet N. Interference of therapeutic antibodies used in desensitization protocols on lymphocytotoxicity crossmatch results. Transpl Immunol 2015; 32:151-5. [PMID: 25936347 DOI: 10.1016/j.trim.2015.04.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Revised: 04/22/2015] [Accepted: 04/24/2015] [Indexed: 01/09/2023]
Abstract
BACKGROUND Therapeutic antibodies used to desensitize patients awaiting a human leukocyte antigen (HLA) or ABO-mismatched graft are suspected to interfere with the lymphocytotoxicity crossmatch (LCT-XM) test when they are present in the tested sera because of their potential ability to activate or inhibit the complement. METHODS The most frequent therapeutic antibodies (Abs) used in desensitization protocols (intravenous immunoglobulins, rituximab, basiliximab, eculizumab, antithymocyte globulin) were added to a negative- or a positive-control serum at various concentrations, and tested in vitro in a LCT-XM test. RESULTS Rituximab turned the LCT-XM positive on B cells at 0.2 μg/mL and antithymocyte globulin turned the LCT-XM positive with T and B cells at 20 μg/mL and 200 μg/mL, respectively. Treatment with dithiothreitol sera, supplemented with rituximab (0.2 and 2 μg/mL) and antithymocyte globulins (20 and 200 μg/mL), partially or totally reduced this positive interference. Intravenous immunoglobulin, eculizumab, and basiliximab did not trigger any interference with the negative control serum. In a positive LCT-XM, eculizumab did not annihilate activation of the rabbit complement. Intravenous immunoglobulins (25 g/L) could partially or totally reduced lysis score of positive crossmatch with weak lysis scores. CONCLUSION If eculizumab within the serum did not annihilate rabbit complement activation and basiliximab did not interfere with the crossmatch reaction, treatments based on rituximab, antithymocyte globulin and intravenous immunoglobulins need to be taken into account when interpreting a positive or negative crossmatch test.
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Affiliation(s)
- David Milongo
- Department of Nephrology and Organ Transplantation, CHU Rangueil, 1 Avenue du Professeur Jean Poulhes, 31059 Toulouse, France.
| | - Guillaume Vieu
- Laboratoire d'immunologie, CHU Rangueil, 1 Avenue du Professeur Jean Poulhes, 31059 Toulouse, France; Laboratoire d'Immunogénétique Moléculaire, EA 3034, Université Toulouse III Paul-Sabatier, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Sarah Blavy
- Laboratoire d'immunologie, CHU Rangueil, 1 Avenue du Professeur Jean Poulhes, 31059 Toulouse, France.
| | - Arnaud Del Bello
- Department of Nephrology and Organ Transplantation, CHU Rangueil, 1 Avenue du Professeur Jean Poulhes, 31059 Toulouse, France.
| | - Federico Sallusto
- Department of Urology, CHU Rangueil, 1 Avenue du Professeur Jean Poulhes, 31059 Toulouse, France.
| | - Lionel Rostaing
- Department of Nephrology and Organ Transplantation, CHU Rangueil, 1 Avenue du Professeur Jean Poulhes, 31059 Toulouse, France; Université Toulouse III Paul-Sabatier, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Nassim Kamar
- Department of Nephrology and Organ Transplantation, CHU Rangueil, 1 Avenue du Professeur Jean Poulhes, 31059 Toulouse, France; Université Toulouse III Paul-Sabatier, 118 Route de Narbonne, 31062 Toulouse, France.
| | - Nicolas Congy-Jolivet
- Laboratoire d'immunologie, CHU Rangueil, 1 Avenue du Professeur Jean Poulhes, 31059 Toulouse, France; Laboratoire d'Immunogénétique Moléculaire, EA 3034, Université Toulouse III Paul-Sabatier, 118 Route de Narbonne, 31062 Toulouse, France.
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Ward ES, Devanaboyina SC, Ober RJ. Targeting FcRn for the modulation of antibody dynamics. Mol Immunol 2015; 67:131-41. [PMID: 25766596 DOI: 10.1016/j.molimm.2015.02.007] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2014] [Revised: 02/05/2015] [Accepted: 02/06/2015] [Indexed: 01/08/2023]
Abstract
The MHC class I-related receptor, FcRn, is a multitasking protein that transports its IgG ligand within and across cells of diverse origins. The role of this receptor as a global regulator of IgG homeostasis and transport, combined with knowledge of the molecular details of FcRn-IgG interactions, has led to opportunities to modulate the in vivo dynamics of antibodies and their antigens through protein engineering. Consequently, the generation of half-life extended antibodies has shown a rapid expansion over the past decade. Further, FcRn itself can be targeted by inhibitors to induce decreased levels of circulating IgGs, which could have applications in multiple clinical settings. The engineering of antibody-antigen interactions to reduce antibody-mediated buffering of soluble ligand has also developed into an active area of investigation, leading to novel antibody platforms designed to result in more effective antigen clearance. Similarly, the target-mediated elimination of antibodies by internalizing, membrane bound antigens (receptors) can be decreased using novel engineering approaches. These strategies, combined with subcellular trafficking analyses of antibody/antigen/FcRn behavior in cells to predict in vivo behavior, have considerable promise for the production of next generation therapeutics and diagnostics.
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