1
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Szijj PA, Gray MA, Ribi MK, Bahou C, Nogueira JCF, Bertozzi CR, Chudasama V. Chemical generation of checkpoint inhibitory T cell engagers for the treatment of cancer. Nat Chem 2023; 15:1636-1647. [PMID: 37488375 PMCID: PMC10624612 DOI: 10.1038/s41557-023-01280-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 10/11/2022] [Accepted: 06/21/2023] [Indexed: 07/26/2023]
Abstract
Bispecific T cell engagers (BiTEs), a subset of bispecific antibodies (bsAbs), can promote a targeted cancer cell's death by bringing it close to a cytotoxic T cell. Checkpoint inhibitory T cell engagers (CiTEs) comprise a BiTE core with an added immunomodulatory protein, which serves to reverse cancer-cell immune-dampening strategies, improving efficacy. So far, protein engineering has been the main approach to generate bsAbs and CiTEs, but improved chemical methods for their generation have recently been developed. Homogeneous fragment-based bsAbs constructed from fragment antigen-binding regions (Fabs) can be generated using click chemistry. Here we describe a chemical method to generate biotin-functionalized three-protein conjugates, which include two CiTE molecules, one containing an anti-PD-1 Fab and the other containing an immunomodulatory enzyme, Salmonella typhimurium sialidase. The CiTEs' efficacy was shown to be superior to that of the simpler BiTE scaffold, with the sialidase-containing CiTE inducing substantially enhanced T cell-mediated cytotoxicity in vitro. The chemical method described here, more generally, enables the generation of multi-protein constructs with further biological applications.
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Affiliation(s)
- Peter A Szijj
- Department of Chemistry, University College London, London, UK
| | - Melissa A Gray
- Department of Chemistry, Sarafan ChEM-H, and Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA
| | - Mikaela K Ribi
- Department of Chemistry, Sarafan ChEM-H, and Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA
| | - Calise Bahou
- Department of Chemistry, University College London, London, UK
| | | | - Carolyn R Bertozzi
- Department of Chemistry, Sarafan ChEM-H, and Howard Hughes Medical Institute, Stanford University, Stanford, CA, USA.
| | - Vijay Chudasama
- Department of Chemistry, University College London, London, UK.
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2
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Richards DA, Thomas MR, Szijj PA, Foote J, Chen Y, Nogueira JCF, Chudasama V, Stevens MM. Employing defined bioconjugates to generate chemically functionalised gold nanoparticles for in vitro diagnostic applications. Nanoscale 2021; 13:11921-11931. [PMID: 34190286 PMCID: PMC8280965 DOI: 10.1039/d1nr02584h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Accepted: 06/22/2021] [Indexed: 06/13/2023]
Abstract
Novel methods for introducing chemical and biological functionality to the surface of gold nanoparticles serve to increase the utility of this class of nanomaterials across a range of applications. To date, methods for functionalising gold surfaces have relied upon uncontrollable non-specific adsorption, bespoke chemical linkers, or non-generalisable protein-protein interactions. Herein we report a versatile method for introducing functionality to gold nanoparticles by exploiting the strong interaction between chemically functionalised bovine serum albumin (f-BSA) and citrate-capped gold nanoparticles (AuNPs). We establish the generalisability of the method by introducing a variety of functionalities to gold nanoparticles using cheap, commercially available chemical linkers. The utility of this approach is further demonstrated through the conjugation of the monoclonal antibody Ontruzant to f-BSA-AuNPs using inverse electron-demand Diels-Alder (iEDDA) click chemistry, a hitherto unexplored chemistry for AuNP-IgG conjugation. Finally, we show that the AuNP-Ontruzant particles generated via f-BSA-AuNPs have a greater affinity for their target in a lateral flow format when compared to conventional physisorption, highlighting the potential of this technology for producing sensitive diagnostic tests.
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Affiliation(s)
- Daniel A. Richards
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | - Michael R. Thomas
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
- London Centre for Nanotechnology, University College LondonLondonUK
- Department of Biochemical Engineering, University College LondonWC1E 6BT LondonUK
| | - Peter A. Szijj
- Department of Chemistry, University College LondonLondonUK
| | - James Foote
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | - Yiyun Chen
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
| | | | | | - Molly M. Stevens
- Department of Materials, Imperial College LondonLondonUK
- Department of Bioengineering, Imperial College LondonUK
- Institute of Biomedical Engineering, Imperial College LondonLondonUK
- Department of Medical Biochemistry and BiophysicsStockholmSweden
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3
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Greene MK, Nogueira JCF, Tracey SR, Richards DA, McDaid WJ, Burrows JF, Campbell K, Longley DB, Chudasama V, Scott CJ. Refined construction of antibody-targeted nanoparticles leads to superior antigen binding and enhanced delivery of an entrapped payload to pancreatic cancer cells. Nanoscale 2020; 12:11647-11658. [PMID: 32436550 DOI: 10.1039/d0nr02387f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Antibody-targeted nanoparticles have shown exceptional promise as delivery vehicles for anticancer drugs, although manufacturability challenges have hampered clinical progress. These include the potential for uncontrolled and random antibody conjugation, resulting in masked or inactive paratopes and unwanted Fc domain interactions. To circumvent these issues, we show that the interchain disulfide of cetuximab F(ab) may be selectively re-bridged with a strained alkyne handle, to permit 'click' coupling to azide-capped nanoparticles in a highly uniform and oriented manner. When compared to conventional carbodiimide chemistry, this conjugation approach leads to the generation of nanoparticles with a higher surface loading of cetuximab F(ab) and with markedly improved ability to bind to the target epidermal growth factor receptor. Moreover, we show that entrapment of a camptothecin payload within these nanoparticles can enhance drug targeting to antigen-expressing pancreatic cancer cells, resulting in superior cytotoxicity versus the conventional nanoformulation. Collectively, this work highlights the critical need to develop refined methods for the construction of targeted nanoparticles that will accelerate their clinical translation through improved performance and manufacturability.
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Affiliation(s)
- Michelle K Greene
- The Patrick G Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
| | | | - Shannon R Tracey
- The Patrick G Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
| | | | - William J McDaid
- The Patrick G Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
| | | | - Katrina Campbell
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Daniel B Longley
- The Patrick G Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
| | - Vijay Chudasama
- Department of Chemistry, University College London, London, UK.
| | - Christopher J Scott
- The Patrick G Johnston Centre for Cancer Research, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
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4
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Nogueira JCF, Paliashvili K, Bradford A, Di Maggio F, Richards DA, Day RM, Chudasama V. Functionalised thermally induced phase separation (TIPS) microparticles enabled for "click" chemistry. Org Biomol Chem 2020; 18:2215-2218. [PMID: 32150198 PMCID: PMC7362741 DOI: 10.1039/d0ob00106f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Accepted: 03/02/2020] [Indexed: 12/23/2022]
Abstract
Due to their homogeneity, tuneable properties, low cost and ease of manufacture, thermally induced phase separation (TIPS) polymeric microparticles are emerging as an exciting class of injectable device for the treatment of damaged tissue or complex diseases, such as cancer. However, relatively little work has explored enhancing surface functionalisation of this system. Herein, we present the functionalisation of TIPS microparticles with both small molecules and an antibody fragment of Herceptin™, via a heterobifunctional pyridazinedione linker capable of participating in SPAAC "click" chemistry, and compare it to the traditional method of preparing active-targeted microparticle systems, that is, physisorption of antibodies to the microparticle surface. Antigen-binding assays demonstrated that functionalisation of microparticles with Herceptin Fab, via a pyridazinedione linker, provided an enhanced avidity to HER2+ when compared to traditional physisorption methods.
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Affiliation(s)
- João C F Nogueira
- UCL Chemistry Department, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Ketevan Paliashvili
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Alexandra Bradford
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Francesco Di Maggio
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Daniel A Richards
- UCL Chemistry Department, University College London, Gower Street, London, WC1E 6BT, UK.
| | - Richard M Day
- Centre for Precision Healthcare, UCL Division of Medicine, University College London, Gower Street, London, WC1E 6BT, UK. and The Discoveries Centre for Regenerative and Precision Medicine, University College London, Gower Street, London, WC1E 6BT, UK
| | - Vijay Chudasama
- UCL Chemistry Department, University College London, Gower Street, London, WC1E 6BT, UK.
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5
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Maruani A, Szijj PA, Bahou C, Nogueira JCF, Caddick S, Baker JR, Chudasama V. A Plug-and-Play Approach for the De Novo Generation of Dually Functionalized Bispecifics. Bioconjug Chem 2020; 31:520-529. [DOI: 10.1021/acs.bioconjchem.0c00002] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Antoine Maruani
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, United Kingdom
| | - Peter A. Szijj
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, United Kingdom
| | - Calise Bahou
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, United Kingdom
| | - João C. F. Nogueira
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, United Kingdom
| | - Stephen Caddick
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, United Kingdom
| | - James R. Baker
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, United Kingdom
| | - Vijay Chudasama
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, United Kingdom
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal
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6
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Xu L, Raabe M, Zegota MM, Nogueira JCF, Chudasama V, Kuan SL, Weil T. Site-selective protein modification via disulfide rebridging for fast tetrazine/trans-cyclooctene bioconjugation. Org Biomol Chem 2020; 18:1140-1147. [PMID: 31971218 DOI: 10.1039/c9ob02687h] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
An inverse electron demand Diels-Alder reaction between tetrazine and trans-cyclooctene (TCO) holds great promise for protein modification and manipulation. Herein, we report the design and synthesis of a tetrazine-based disulfide rebridging reagent, which allows the site-selective installation of a tetrazine group into disulfide-containing peptides and proteins such as the hormone somatostatin (SST) and the antigen binding fragment (Fab) of human immunoglobulin G (IgG). The fast and efficient conjugation of the tetrazine modified proteins with three different TCO-containing substrates to form a set of bioconjugates in a site-selective manner was successfully demonstrated for the first time. Homogeneous, well-defined bioconjugates were obtained underlining the great potential of our method for fast bioconjugation in emerging protein therapeutics. The formed bioconjugates were stable against glutathione and in serum, and they maintained their secondary structure. With this work, we broaden the scope of tetrazine chemistry for site-selective protein modification to prepare well-defined SST and Fab conjugates with preserved structures and good stability under biologically relevant conditions.
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Affiliation(s)
- Lujuan Xu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany. and Institute of Inorganic Chemistry I, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Marco Raabe
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany. and Institute of Inorganic Chemistry I, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Maksymilian M Zegota
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany. and Institute of Inorganic Chemistry I, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | | | - Vijay Chudasama
- Department of Chemistry, University College London, London, UK
| | - Seah Ling Kuan
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany. and Institute of Inorganic Chemistry I, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
| | - Tanja Weil
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany. and Institute of Inorganic Chemistry I, University of Ulm, Albert-Einstein-Allee 11, 89081 Ulm, Germany
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7
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Nogueira JCF, Greene MK, Richards DA, Furby AO, Steven J, Porter A, Barelle C, Scott CJ, Chudasama V. Oriented attachment of V NAR proteins, via site-selective modification, on PLGA-PEG nanoparticles enhances nanoconjugate performance. Chem Commun (Camb) 2019; 55:7671-7674. [PMID: 31204425 PMCID: PMC6873773 DOI: 10.1039/c9cc02655j] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Accepted: 05/29/2019] [Indexed: 12/16/2022]
Abstract
Herein we report the construction of a nanoparticle-based drug delivery system which targets a key regulator in tumour angiogenesis. We exploit a Variable New Antigen Receptor (VNAR) domain, conjugated using site-specific chemistry, to direct poly lactic acid-co-glycolic acid-polyethylene glycol (PLGA-PEG) nanoparticles to delta like canonical Notch ligand 4 (DLL4). The importance of site-specific chemistry is demonstrated.
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Affiliation(s)
| | - Michelle K. Greene
- Centre for Cancer Research and Cell Biology
, School of Medicine
, Queen's University Belfast
,
Belfast
, UK
.
| | - Daniel A. Richards
- Department of Chemistry
, University College London
,
London
, UK
.
- Department of Materials
, Imperial College London
,
London
, UK
| | | | - John Steven
- Institute of Medical Science
, University of Aberdeen
,
Aberdeen
, UK
- Elasmogen Ltd
,
Aberdeen
, UK
.
| | - Andrew Porter
- Institute of Medical Science
, University of Aberdeen
,
Aberdeen
, UK
- Elasmogen Ltd
,
Aberdeen
, UK
.
| | - Caroline Barelle
- Institute of Medical Science
, University of Aberdeen
,
Aberdeen
, UK
- Elasmogen Ltd
,
Aberdeen
, UK
.
| | - Christopher J. Scott
- Centre for Cancer Research and Cell Biology
, School of Medicine
, Queen's University Belfast
,
Belfast
, UK
.
| | - Vijay Chudasama
- Department of Chemistry
, University College London
,
London
, UK
.
- Research Institute for Medicines (iMed.ULisboa)
, Faculty of Pharmacy
, Universidade de Lisboa
,
Lisbon
, Portugal
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8
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Greene MK, Richards DA, Nogueira JCF, Campbell K, Smyth P, Fernández M, Scott CJ, Chudasama V. Forming next-generation antibody-nanoparticle conjugates through the oriented installation of non-engineered antibody fragments. Chem Sci 2017; 9:79-87. [PMID: 29629076 PMCID: PMC5869316 DOI: 10.1039/c7sc02747h] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Accepted: 08/08/2017] [Indexed: 12/15/2022] Open
Abstract
Enabling oriented installation of non-engineered antibody fragments on nanoparticle surfaces to create next-generation antibody–nanoparticle conjugates.
The successful development of targeted nanotherapeutics is contingent upon the conjugation of therapeutic nanoparticles to target-specific ligands, with particular emphasis being placed on antibody-based ligands. Thus, new methods that enable the covalent and precise installation of targeting antibodies to nanoparticle surfaces are greatly desired, especially those which do not rely on costly and time-consuming antibody engineering techniques. Herein we present a novel method for the highly controlled and oriented covalent conjugation of non-engineered antibody F(ab) fragments to PLGA–PEG nanoparticles using disulfide-selective pyridazinedione linkers and strain-promoted alkyne–azide click chemistry. Exemplification of this method with trastuzumab and cetuximab showed significant improvements in both conjugation efficiency and antigen binding capability, when compared to commonly employed strategies for antibody–nanoparticle construction. This new approach paves the way for the development of antibody-targeted nanomedicines with improved paratope availability, reproducibility and uniformity to enhance both biological activity and ease of manufacture.
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Affiliation(s)
- Michelle K Greene
- Centre for Cancer Research and Cell Biology , School of Medicine , Dentistry and Biomedical Sciences , Queen's University Belfast , Belfast , UK .
| | | | | | - Katrina Campbell
- Institute for Global Food Security , School of Biological Sciences , Queen's University Belfast , Belfast , UK
| | - Peter Smyth
- Centre for Cancer Research and Cell Biology , School of Medicine , Dentistry and Biomedical Sciences , Queen's University Belfast , Belfast , UK .
| | - Marcos Fernández
- Department of Chemistry , University College London , London , UK .
| | - Christopher J Scott
- Centre for Cancer Research and Cell Biology , School of Medicine , Dentistry and Biomedical Sciences , Queen's University Belfast , Belfast , UK .
| | - Vijay Chudasama
- Department of Chemistry , University College London , London , UK . .,Research Institute for Medicines (iMed.ULisboa) , Faculty of Pharmacy , Universidade de Lisboa , Lisbon , Portugal
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9
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Robinson E, Nunes JPM, Vassileva V, Maruani A, Nogueira JCF, Smith MEB, Pedley RB, Caddick S, Baker JR, Chudasama V. Pyridazinediones deliver potent, stable, targeted and efficacious antibody–drug conjugates (ADCs) with a controlled loading of 4 drugs per antibody. RSC Adv 2017. [DOI: 10.1039/c7ra00788d] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Delivering potent, stable, targeted and in vivo efficacious antibody–drug conjugates (ADCs) using pyridazinedione functional disulfide re-bridging reagents.
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Affiliation(s)
| | | | | | | | | | | | | | | | - James R. Baker
- Department of Chemistry
- University College London
- London
- UK
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