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Tapia-Galisteo A, Sánchez-Rodríguez I, Narbona J, Iglesias-Hernández P, Aragón-García S, Jiménez-Reinoso A, Compte M, Khan S, Tsuda T, Chames P, Lacadena J, Álvarez-Vallina L, Sanz L. Combination of T cell-redirecting strategies with a bispecific antibody blocking TGF-β and PD-L1 enhances antitumor responses. Oncoimmunology 2024; 13:2338558. [PMID: 38623463 PMCID: PMC11018002 DOI: 10.1080/2162402x.2024.2338558] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/30/2024] [Indexed: 04/17/2024] Open
Abstract
T cell-based immunotherapies for solid tumors have not achieved the clinical success observed in hematological malignancies, partially due to the immunosuppressive effect promoted by the tumor microenvironment, where PD-L1 and TGF-β play a pivotal role. However, durable responses to immune checkpoint inhibitors remain limited to a minority of patients, while TGF-β inhibitors have not reached the market yet. Here, we describe a bispecific antibody for dual blockade of PD-L1 and TFG-β, termed AxF (scFv)2, under the premise that combination with T cell redirecting strategies would improve clinical benefit. The AxF (scFv)2 antibody was well expressed in mammalian and yeast cells, bound both targets and inhibited dose-dependently the corresponding signaling pathways in luminescence-based cellular reporter systems. Moreover, combined treatment with trispecific T-cell engagers (TriTE) or CAR-T cells significantly boosted T cell activation status and cytotoxic response in breast, lung and colorectal (CRC) cancer models. Importantly, the combination of an EpCAMxCD3×EGFR TriTE with the AxF (scFv)2 delayed CRC tumor growth in vivo and significantly enhanced survival compared to monotherapy with the trispecific antibody. In summary, we demonstrated the feasibility of concomitant blockade of PD-L1 and TGF-β by a single molecule, as well as its therapeutic potential in combination with different T cell redirecting agents to overcome tumor microenvironment-mediated immunosuppression.
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Affiliation(s)
- Antonio Tapia-Galisteo
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
- Cancer Immunotherapy Unit (UNICA), Hospital Universitario 12 de Octubre, Madrid, Spain
- Immuno-oncology and Immunotherapy Group, Biomedical Research Institute Hospital 12 de Octubre, Madrid, Spain
- H12O-CNIO Cancer Immunotherapy Clinical Research Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Iñigo Sánchez-Rodríguez
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Javier Narbona
- Department of Biochemistry and Molecular Biology, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Patricia Iglesias-Hernández
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Saray Aragón-García
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Anaïs Jiménez-Reinoso
- Cancer Immunotherapy Unit (UNICA), Hospital Universitario 12 de Octubre, Madrid, Spain
- Immuno-oncology and Immunotherapy Group, Biomedical Research Institute Hospital 12 de Octubre, Madrid, Spain
- H12O-CNIO Cancer Immunotherapy Clinical Research Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Marta Compte
- Department of Antibody Engineering, Leadartis SL, Madrid, Spain
| | - Shaukat Khan
- Nemours Children’s Health Delaware, Wilmington, Delaware, USA
| | - Takeshi Tsuda
- Nemours Children’s Health Delaware, Wilmington, Delaware, USA
| | - Patrick Chames
- Aix Marseille Univ, CNRS, INSERM, Institute Paoli-Calmettes, CRCM, Marseille, France
| | - Javier Lacadena
- Department of Biochemistry and Molecular Biology, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Luis Álvarez-Vallina
- Cancer Immunotherapy Unit (UNICA), Hospital Universitario 12 de Octubre, Madrid, Spain
- Immuno-oncology and Immunotherapy Group, Biomedical Research Institute Hospital 12 de Octubre, Madrid, Spain
- H12O-CNIO Cancer Immunotherapy Clinical Research Unit, Spanish National Cancer Research Centre (CNIO), Madrid, Spain
| | - Laura Sanz
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
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Eshak F, Pion L, Scholler P, Nevoltris D, Chames P, Rondard P, Pin JP, Acher FC, Goupil-Lamy A. Epitope Identification of an mGlu5 Receptor Nanobody Using Physics-Based Molecular Modeling and Deep Learning Techniques. J Chem Inf Model 2024. [PMID: 38423996 DOI: 10.1021/acs.jcim.3c01620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
The world has witnessed a revolution in therapeutics with the development of biological medicines such as antibodies and antibody fragments, notably nanobodies. These nanobodies possess unique characteristics including high specificity and modulatory activity, making them promising candidates for therapeutic applications. Identifying their binding mode is essential for their development. Experimental structural techniques are effective to get such information, but they are expensive and time-consuming. Here, we propose a computational approach, aiming to identify the epitope of a nanobody that acts as an agonist and a positive allosteric modulator at the rat metabotropic glutamate receptor 5. We employed multiple structure modeling tools, including various artificial intelligence algorithms for epitope mapping. The computationally identified epitope was experimentally validated, confirming the success of our approach. Additional dynamics studies provided further insights on the modulatory activity of the nanobody. The employed methodologies and approaches initiate a discussion on the efficacy of diverse techniques for epitope mapping and later nanobody engineering.
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Affiliation(s)
- Floriane Eshak
- SPPIN CNRS UMR 8003, Université Paris Cité, 75006 Paris, France
| | - Léo Pion
- Institut de Génomique Fonctionnelle, Université Montpellier, CNRS, Inserm, 34094 Montpellier, France
| | - Pauline Scholler
- Institut de Génomique Fonctionnelle, Université Montpellier, CNRS, Inserm, 34094 Montpellier, France
| | - Damien Nevoltris
- Aix Marseille University, CNRS, Inserm, Institut Paoli-Calmettes, CRCM, 13009 Marseille, France
| | - Patrick Chames
- Aix Marseille University, CNRS, Inserm, Institut Paoli-Calmettes, CRCM, 13009 Marseille, France
| | - Philippe Rondard
- Institut de Génomique Fonctionnelle, Université Montpellier, CNRS, Inserm, 34094 Montpellier, France
| | - Jean-Philippe Pin
- Institut de Génomique Fonctionnelle, Université Montpellier, CNRS, Inserm, 34094 Montpellier, France
| | | | - Anne Goupil-Lamy
- BIOVIA Science Council, Dassault Systèmes, 78140 Vélizy-Villacoublay, France
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De Leiris N, Perret P, Lombardi C, Gözel B, Chierici S, Millet P, Debiossat M, Bacot S, Tournier BB, Chames P, Lenormand JL, Ghezzi C, Fagret D, Moulin M. A single-domain antibody for the detection of pathological Tau protein in the early stages of oligomerization. J Transl Med 2024; 22:163. [PMID: 38365700 PMCID: PMC10870657 DOI: 10.1186/s12967-024-04987-1] [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: 10/23/2023] [Accepted: 02/12/2024] [Indexed: 02/18/2024] Open
Abstract
BACKGROUND Soluble oligomeric forms of Tau protein have emerged as crucial players in the propagation of Tau pathology in Alzheimer's disease (AD). Our objective is to introduce a single-domain antibody (sdAb) named 2C5 as a novel radiotracer for the efficient detection and longitudinal monitoring of oligomeric Tau species in the human brain. METHODS The development and production of 2C5 involved llama immunization with the largest human Tau isoform oligomers of different maturation states. Subsequently, 2C5 underwent comprehensive in vitro characterization for affinity and specificity via Enzyme-Linked Immunosorbent Assay and immunohistochemistry on human brain slices. Technetium-99m was employed to radiolabel 2C5, followed by its administration to healthy mice for biodistribution analysis. RESULTS 2C5 exhibited robust binding affinity towards Tau oligomers (Kd = 6.280 nM ± 0.557) and to Tau fibers (Kd = 5.024 nM ± 0.453), with relatively weaker binding observed for native Tau protein (Kd = 1791 nM ± 8.714) and amyloid peptide (Kd > 10,000 nM). Remarkably, this SdAb facilitated immuno-histological labeling of pathological forms of Tau in neurons and neuritic plaques, yielding a high-contrast outcome in AD patients, closely mirroring the performance of reference antibodies AT8 and T22. Furthermore, 2C5 SdAb was successfully radiolabeled with 99mTc, preserving stability for up to 6 h post-radiolabeling (radiochemical purity > 93%). However, following intravenous injection into healthy mice, the predominant uptake occurred in kidneys, amounting to 115.32 ± 3.67, 97.70 ± 43.14 and 168.20 ± 34.52% of injected dose per gram (% ID/g) at 5, 10 and 45 min respectively. Conversely, brain uptake remained minimal at all measured time points, registering at 0.17 ± 0.03, 0.12 ± 0.07 and 0.02 ± 0.01% ID/g at 5, 10 and 45 min post-injection respectively. CONCLUSION 2C5 demonstrates excellent affinity and specificity for pathological Tau oligomers, particularly in their early stages of oligomerization. However, the current limitation of insufficient blood-brain barrier penetration necessitates further modifications before considering its application in nuclear medicine imaging for humans.
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Affiliation(s)
- Nicolas De Leiris
- University Grenoble Alpes, Clinique Universitaire de Médecine Nucléaire, INSERM, Centre Hospitalier Universitaire Grenoble Alpes, LRB, CS 10217, 38043, Grenoble CEDEX 9, France.
| | - Pascale Perret
- University Grenoble Alpes, INSERM, LRB, 38000, Grenoble, France
| | | | - Bülent Gözel
- University Grenoble Alpes, INSERM, LRB, 38000, Grenoble, France
| | - Sabine Chierici
- University Grenoble Alpes, CNRS, DCM, 38000, Grenoble, France
| | - Philippe Millet
- Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | | | - Sandrine Bacot
- University Grenoble Alpes, INSERM, LRB, 38000, Grenoble, France
| | - Benjamin B Tournier
- Division of Adult Psychiatry, Department of Psychiatry, Geneva University Hospitals, Geneva, Switzerland
| | - Patrick Chames
- Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | | | | | - Daniel Fagret
- University Grenoble Alpes, INSERM, LRB, 38000, Grenoble, France
| | - Marcelle Moulin
- University Grenoble Alpes, INSERM, LRB, 38000, Grenoble, France
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Briolay T, Fresquet J, Meyer D, Kerfelec B, Chames P, Ishow E, Blanquart C. Specific Targeting of Mesothelin-Expressing Malignant Cells Using Nanobody-Functionalized Magneto-Fluorescent Nanoassemblies. Int J Nanomedicine 2024; 19:633-650. [PMID: 38269255 PMCID: PMC10807453 DOI: 10.2147/ijn.s435787] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 12/14/2023] [Indexed: 01/26/2024] Open
Abstract
Introduction Most current anti-cancer therapies are associated with major side effects due to a lack of tumor specificity. Appropriate vectorization of drugs using engineered nanovectors is known to increase local concentration of therapeutic molecules in tumors while minimizing their side effects. Mesothelin (MSLN) is a well-known tumor associated antigen overexpressed in many malignancies, in particular in malignant pleural mesothelioma (MPM), and various MSLN-targeting anticancer therapies are currently evaluated in preclinical and clinical assays. In this study, we described, for the first time, the functionalization of fluorescent organic nanoassemblies (NA) with a nanobody (Nb) targeting MSLN for the specific targeting of MSLN expressing MPM cancer cells. Methods Cell lines from different cancer origin expressing or not MSLN were used. An Nb directed against MSLN was coupled to fluorescent NA using click chemistry. A panel of endocytosis inhibitors was used to study targeted NA internalization by cells. Cancer cells were grown in 2D or 3D and under a flow to evaluate the specificity of the targeted NA. Binding and internalization of the targeted NA were studied using flow cytometry, confocal microscopy and transmission electron microscopy. Results We show that the targeted NA specifically bind to MSLN-expressing tumor cells. Moreover, such functionalized NA appear to be internalized more rapidly and in significantly larger proportions compared to naked ones in MSLN+ MPM cells, thereby demonstrating both the functionality and interest of the active targeting strategy. We demonstrated that targeted NA are mainly internalized through a clathrin-independent/dynamin-dependent endocytosis pathway and are directed to lysosomes for degradation. A 3D cell culture model based on MSLN-expressing multicellular tumor spheroids reveals NA penetration in the first superficial layers. Conclusion Altogether, these results open the path to novel anticancer strategies based on MSLN-activated internalization of NA incorporating drugs to promote specific accumulation of active treatments in tumors.
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Affiliation(s)
- Tina Briolay
- Nantes Université, INSERM UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, F-44000, France
| | - Judith Fresquet
- Nantes Université, INSERM UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, F-44000, France
| | - Damien Meyer
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Brigitte Kerfelec
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Patrick Chames
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Eléna Ishow
- Nantes Université, CNRS, CEISAM, UMR 6230, Nantes, F-44000, France
| | - Christophe Blanquart
- Nantes Université, INSERM UMR 1307, CNRS UMR 6075, Université d’Angers, CRCI2NA, Nantes, F-44000, France
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Wang YJ, Valotteau C, Aimard A, Villanueva L, Kostrz D, Follenfant M, Strick T, Chames P, Rico F, Gosse C, Limozin L. Combining DNA scaffolds and acoustic force spectroscopy to characterize individual protein bonds. Biophys J 2023; 122:2518-2530. [PMID: 37290437 PMCID: PMC10323022 DOI: 10.1016/j.bpj.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 12/13/2022] [Accepted: 05/03/2023] [Indexed: 06/10/2023] Open
Abstract
Single-molecule data are of great significance in biology, chemistry, and medicine. However, new experimental tools to characterize, in a multiplexed manner, protein bond rupture under force are still needed. Acoustic force spectroscopy is an emerging manipulation technique which generates acoustic waves to apply force in parallel on multiple microbeads tethered to a surface. We here exploit this configuration in combination with the recently developed modular junctured-DNA scaffold that has been designed to study protein-protein interactions at the single-molecule level. By applying repetitive constant force steps on the FKBP12-rapamycin-FRB complex, we measure its unbinding kinetics under force at the single-bond level. Special efforts are made in analyzing the data to identify potential pitfalls. We propose a calibration method allowing in situ force determination during the course of the unbinding measurement. We compare our results with well-established techniques, such as magnetic tweezers, to ensure their accuracy. We also apply our strategy to study the force-dependent rupture of a single-domain antibody with its antigen. Overall, we get a good agreement with the published parameters that have been obtained at zero force and population level. Thus, our technique offers single-molecule precision for multiplexed measurements of interactions of biotechnological and medical interest.
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Affiliation(s)
- Yong Jian Wang
- Aix-Marseille Université, CNRS, INSERM, Laboratoire Adhesion et Inflammation, Turing Centre for Living systems, Marseille, France.
| | - Claire Valotteau
- Aix-Marseille Université, CNRS, INSERM, Laboratoire Adhesion et Inflammation, Turing Centre for Living systems, Marseille, France
| | - Adrien Aimard
- Aix-Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, Centre de Recherche en Cancerologie de Marseille, Marseille, France
| | - Lorenzo Villanueva
- Aix-Marseille Université, CNRS, INSERM, Laboratoire Adhesion et Inflammation, Turing Centre for Living systems, Marseille, France
| | - Dorota Kostrz
- Institut de Biologie de l'Ecole Normale Supérieure, ENS, CNRS, INSERM, PSL Research University, Paris, France
| | - Maryne Follenfant
- Institut de Biologie de l'Ecole Normale Supérieure, ENS, CNRS, INSERM, PSL Research University, Paris, France
| | - Terence Strick
- Institut de Biologie de l'Ecole Normale Supérieure, ENS, CNRS, INSERM, PSL Research University, Paris, France
| | - Patrick Chames
- Aix-Marseille Université, CNRS, INSERM, Institut Paoli-Calmettes, Centre de Recherche en Cancerologie de Marseille, Marseille, France
| | - Felix Rico
- Aix-Marseille Université, CNRS, INSERM, Laboratoire Adhesion et Inflammation, Turing Centre for Living systems, Marseille, France
| | - Charlie Gosse
- Institut de Biologie de l'Ecole Normale Supérieure, ENS, CNRS, INSERM, PSL Research University, Paris, France.
| | - Laurent Limozin
- Aix-Marseille Université, CNRS, INSERM, Laboratoire Adhesion et Inflammation, Turing Centre for Living systems, Marseille, France.
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Benloucif A, Meyer D, Balasse L, Goubard A, Danner L, Bouhlel A, Castellano R, Guillet B, Chames P, Kerfelec B. Rapid nanobody-based imaging of mesothelin expressing malignancies compatible with blocking therapeutic antibodies. Front Immunol 2023; 14:1200652. [PMID: 37388728 PMCID: PMC10303918 DOI: 10.3389/fimmu.2023.1200652] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 05/25/2023] [Indexed: 07/01/2023] Open
Abstract
Introduction Mesothelin (MSLN) is overexpressed in a wide variety of cancers with few therapeutic options and has recently emerged as an attractive target for cancer therapy, with a large number of approaches currently under preclinical and clinical investigation. In this respect, developing mesothelin specific tracers as molecular companion tools for predicting patient eligibility, monitoring then response to mesothelin-targeting therapies, and tracking the evolution of the disease or for real-time visualisation of tumours during surgery is of growing importance. Methods We generated by phage display a nanobody (Nb S1) and used enzymatic approaches were used to site-directed conjugate Nb S1 with either ATTO 647N fluorochrome or NODAGA chelator for fluorescence and positron emission tomography imaging (PET) respectively. Results We demonstrated that Nb S1 displays a high apparent affinity and specificity for human mesothelin and demonstrated that the binding, although located in the membrane distal domain of mesothelin, is not impeded by the presence of MUC16, the only known ligand of mesothelin, nor by the therapeutic antibody amatuximab. In vivo experiments showed that both ATTO 647N and [68Ga]Ga-NODAGA-S1 rapidly and specifically accumulated in mesothelin positive tumours compared to mesothelin negative tumours or irrelevant Nb with a high tumour/background ratio. The ex vivo biodistribution profile analysis also confirmed a significantly higher uptake of Nb S1 in MSLN-positive tumours than in MSLNlow tumours. Conclusion We demonstrated for the first time the use of an anti-MSLN nanobody as PET radiotracer for same day imaging of MSLN+ tumours, targeting an epitope compatible with the monitoring of amatuximab-based therapies and current SS1-derived-drug conjugates.
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Affiliation(s)
- Abdennour Benloucif
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Damien Meyer
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Laure Balasse
- Aix Marseille Univ, CNRS, Centre Européen de Recherche en Imagerie Medicale (CERIMED), Marseille, France
- Aix-marseille University, INSERM, INRAE, Centre de recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
| | - Armelle Goubard
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, TrGET Preclinical Platform, Marseille, France
| | - Lucile Danner
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Ahlem Bouhlel
- Aix Marseille Univ, CNRS, Centre Européen de Recherche en Imagerie Medicale (CERIMED), Marseille, France
- Aix-marseille University, INSERM, INRAE, Centre de recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
| | - Rémy Castellano
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, TrGET Preclinical Platform, Marseille, France
| | - Benjamin Guillet
- Aix Marseille Univ, CNRS, Centre Européen de Recherche en Imagerie Medicale (CERIMED), Marseille, France
- Aix-marseille University, INSERM, INRAE, Centre de recherche en Cardiovasculaire et Nutrition (C2VN), Marseille, France
| | - Patrick Chames
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Brigitte Kerfelec
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
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7
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Kiemen AL, Damanakis AI, Braxton AM, He J, Laheru D, Fishman EK, Chames P, Pérez CA, Wu PH, Wirtz D, Wood LD, Hruban RH. Tissue clearing and 3D reconstruction of digitized, serially sectioned slides provide novel insights into pancreatic cancer. Med 2023; 4:75-91. [PMID: 36773599 PMCID: PMC9922376 DOI: 10.1016/j.medj.2022.11.009] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [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: 05/31/2022] [Revised: 10/06/2022] [Accepted: 11/23/2022] [Indexed: 01/26/2023]
Abstract
Pancreatic cancer is currently the third leading cause of cancer death in the United States. The clinical hallmarks of this disease include abdominal pain that radiates to the back, the presence of a hypoenhancing intrapancreatic lesion on imaging, and widespread liver metastases. Technologies such as tissue clearing and three-dimensional (3D) reconstruction of digitized serially sectioned hematoxylin and eosin-stained slides can be used to visualize large (up to 2- to 3-centimeter cube) tissues at cellular resolution. When applied to human pancreatic cancers, these 3D visualization techniques have provided novel insights into the basis of a number of the clinical characteristics of this disease. Here, we describe the clinical features of pancreatic cancer, review techniques for clearing and the 3D reconstruction of digitized microscope slides, and provide examples that illustrate how 3D visualization of human pancreatic cancer at the microscopic level has revealed features not apparent in 2D microscopy and, in so doing, has closed the gap between bench and bedside. Compared with animal models and 2D microscopy, studies of human tissues in 3D can reveal the difference between what can happen and what does happen in human cancers.
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Affiliation(s)
- Ashley L Kiemen
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Chemical & Biomolecular Engineering, The Johns Hopkins University, 3400 N Charles St, Baltimore, MD 21218, USA
| | - Alexander Ioannis Damanakis
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of General, Visceral, Cancer and Transplant Surgery, University Hospital of Cologne, Cologne, Germany
| | - Alicia M Braxton
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Jin He
- Department of Surgery, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Daniel Laheru
- Department of Oncology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Elliot K Fishman
- Department of Radiology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Patrick Chames
- Antibody Therapeutics and Immunotargeting Team, Aix Marseille University, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Cristina Almagro Pérez
- Department of Chemical & Biomolecular Engineering, The Johns Hopkins University, 3400 N Charles St, Baltimore, MD 21218, USA
| | - Pei-Hsun Wu
- Department of Chemical & Biomolecular Engineering, The Johns Hopkins University, 3400 N Charles St, Baltimore, MD 21218, USA
| | - Denis Wirtz
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Chemical & Biomolecular Engineering, The Johns Hopkins University, 3400 N Charles St, Baltimore, MD 21218, USA
| | - Laura D Wood
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Oncology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
| | - Ralph H Hruban
- Department of Pathology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA; Department of Oncology, The Sol Goldman Pancreatic Cancer Research Center, The Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA.
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8
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Tapia-Galisteo A, Sánchez Rodríguez Í, Aguilar-Sopeña O, Harwood SL, Narbona J, Ferreras Gutierrez M, Navarro R, Martín-García L, Corbacho C, Compte M, Lacadena J, Blanco FJ, Chames P, Roda-Navarro P, Álvarez-Vallina L, Sanz L. Trispecific T-cell engagers for dual tumor-targeting of colorectal cancer. Oncoimmunology 2022; 11:2034355. [PMID: 35154908 PMCID: PMC8837253 DOI: 10.1080/2162402x.2022.2034355] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Affiliation(s)
- Antonio Tapia-Galisteo
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Íñigo Sánchez Rodríguez
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Oscar Aguilar-Sopeña
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Universidad Complutense de Madrid, Spain
- Lymphocyte Immunobiology Group, Biomedical Research Institute Hospital 12 de Octubre, Madrid, Spain
| | - Seandean Lykke Harwood
- Protein Science, Department of Molecular Biology and Genetics, Aarhus University, Aarhus, Denmark
| | - Javier Narbona
- Department of Biochemistry and Molecular Biology, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Spain
| | | | - Rocío Navarro
- Department of Antibody Engineering, Leadartis Sl, Madrid, Spain
| | - Laura Martín-García
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Cesáreo Corbacho
- Pathology Department, Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
| | - Marta Compte
- Department of Antibody Engineering, Leadartis Sl, Madrid, Spain
| | - Javier Lacadena
- Department of Biochemistry and Molecular Biology, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Spain
| | - Francisco J. Blanco
- Biomolecular NMR, Centro de Investigaciones Biológicas Margarita Salas-CSIC, Madrid, Spain
| | - Patrick Chames
- Antibody Therapeutics and Immunotargeting Group, Aix Marseille University, CNRS, INSERM, Institute Paoli-Calmettes, CRCM, Marseille, France
| | - Pedro Roda-Navarro
- Department of Immunology, Ophthalmology and ENT, School of Medicine, Universidad Complutense de Madrid, Spain
- Lymphocyte Immunobiology Group, Biomedical Research Institute Hospital 12 de Octubre, Madrid, Spain
| | - Luis Álvarez-Vallina
- Cancer Immunotherapy Unit (UNICA), Hospital Universitario 12 de Octubre, Madrid, Spain
- Immuno-oncology and Immunotherapy Group, Biomedical Research Institute Hospital 12 de Octubre, Madrid, Spain
| | - Laura Sanz
- Molecular Immunology Unit, Biomedical Research Institute Hospital Universitario Puerta de Hierro Majadahonda, Madrid, Spain
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9
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Raynaud A, Desrumeaux K, Vidard L, Termine E, Baty D, Chames P, Vigne E, Kerfelec B. Anti-NKG2D single domain-based antibodies for the modulation of anti-tumor immune response. Oncoimmunology 2020; 10:1854529. [PMID: 33457075 PMCID: PMC7781768 DOI: 10.1080/2162402x.2020.1854529] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [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: 11/05/2022] Open
Abstract
The natural killer group 2 member D (NKG2D) receptor is a C-type lectin-like activating receptor mainly expressed by cytotoxic immune cells including NK, CD8+ T, γδ T and NKT cells and in some pathological conditions by a subset of CD4+ T cells. It binds a variety of ligands (NKG2DL) whose expressions is finely regulated by stress-related conditions. The NKG2DL/NKG2D axis plays a central and complex role in the regulation of immune responses against diverse cellular threats such as oncogene-mediated transformations or infections. We generated a panel of seven highly specific anti-human NKG2D single-domain antibodies targeting various epitopes. These single-domain antibodies were integrated into bivalent and bispecific antibodies using a versatile plug-and-play Fab-like format. Depending on the context, these Fab-like antibodies exhibited activating or inhibitory effects on the immune response mediated by the NKG2DL/NKG2D axis. In solution, the bivalent anti-NKG2D antibodies that compete with NKG2DL potently blocked the activation of NK cells seeded on immobilized MICA, thus constituting antagonizing candidates. Bispecific anti-NKG2DxHER2 antibodies that concomitantly engage HER2 on tumor cells and NKG2D on NK cells elicited cytotoxicity of unstimulated NK in a tumor-specific manner, regardless of their apparent affinities and epitopes. Importantly, the bispecific antibodies that do not compete with ligands binding retained their full cytotoxic activity in the presence of ligands, a valuable property to circumvent immunosuppressive effects induced by soluble ligands in the microenvironment.
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Affiliation(s)
- Adeline Raynaud
- Cancer Research Center of Marseille, INSERM, CNRS, Aix Marseille Université, Institut Paoli - Calmettes, Marseille, France.,Sanofi Oncology, Vitry-sur-Seine, France
| | | | | | - Elise Termine
- Cancer Research Center of Marseille, INSERM, CNRS, Aix Marseille Université, Institut Paoli - Calmettes, Marseille, France
| | - Daniel Baty
- Cancer Research Center of Marseille, INSERM, CNRS, Aix Marseille Université, Institut Paoli - Calmettes, Marseille, France
| | - Patrick Chames
- Cancer Research Center of Marseille, INSERM, CNRS, Aix Marseille Université, Institut Paoli - Calmettes, Marseille, France
| | | | - Brigitte Kerfelec
- Cancer Research Center of Marseille, INSERM, CNRS, Aix Marseille Université, Institut Paoli - Calmettes, Marseille, France
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10
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Hartung F, Krüwel T, Shi X, Pfizenmaier K, Kontermann R, Chames P, Alves F, Pardo LA. A Novel Anti-Kv10.1 Nanobody Fused to Single-Chain TRAIL Enhances Apoptosis Induction in Cancer Cells. Front Pharmacol 2020; 11:686. [PMID: 32528281 PMCID: PMC7246340 DOI: 10.3389/fphar.2020.00686] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 03/13/2020] [Accepted: 04/27/2020] [Indexed: 01/11/2023] Open
Abstract
Antibody-based therapies hold promise for a safe and efficient treatment of cancer. The identification of target tumor cells through a specific antigen enriched on their surface and the subsequent delivery of the therapeutic agent only to those cells requires, besides the efficacy of the therapeutic agent itself, the identification of an antigen enriched on the surface of tumor cells, the generation of high affinity antibodies against that antigen. We have generated single-domain antibodies (nanobodies) against the voltage-gated potassium channel Kv10.1, which outside of the brain is detectable almost exclusively in tumor cells. The nanobody with highest affinity was fused to an improved form of the tumor necrosis factor-related apoptosis inducing ligand TRAIL, to target this cytokine to the surface of tumor cells. The resulting construct, VHH-D9-scTRAIL, shows rapid and strong apoptosis induction in different tumor models in cell culture. The construct combines two sources of specificity, the expression of the antigen restricted to tumor cells and the tumor selectivity of TRAIL. Such specificity combined with the high affinity obtained through nanobodies make the novel agent a promising concept for cancer therapy.
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Affiliation(s)
- Franziska Hartung
- Oncophysiology Group, Max Planck, Institute of Experimental Medicine, Göttingen, Germany
| | - Thomas Krüwel
- Institute of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany
| | - Xiaoyi Shi
- Oncophysiology Group, Max Planck, Institute of Experimental Medicine, Göttingen, Germany
| | - Klaus Pfizenmaier
- Institut für Zellbiologie und Immunologie, Universität Stuttgart, Stuttgart, Germany
| | - Roland Kontermann
- Institut für Zellbiologie und Immunologie, Universität Stuttgart, Stuttgart, Germany
| | - Patrick Chames
- Aix Marseille Univ, CNRS, Inserm, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Frauke Alves
- Institute of Diagnostic and Interventional Radiology, University Medical Center Göttingen, Göttingen, Germany.,Translational Molecular Imaging Group, Max Planck Institute of Experimental Medicine, Göttingen, Germany
| | - Luis A Pardo
- Oncophysiology Group, Max Planck, Institute of Experimental Medicine, Göttingen, Germany
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11
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Chames P, Wurch T. [Bispecific antibodies, novel therapeutic candidates harnessing the immune system]. Med Sci (Paris) 2020; 35:1072-1082. [PMID: 31903920 DOI: 10.1051/medsci/2019242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Over the past ten years, an increased knowledge of tumor biology and immunology allowed the design and development of novel therapeutic antibody and protein scaffold formats, where bispecific antibodies (Abs) play a major role. The latter molecules can (1) bring novel pharmacological properties through the co-engagement of two targets, (2) increase the safety profile as compared to a combination of two antibodies thanks to a targeted relocation to the tumor and (3) reduce development and manufacturing costs associated with single drug product. This review analyzes the different bispecific antibodies and scaffolds described in the field of immuno-oncology, their structure and major pharmacological and physico-chemical properties.
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Affiliation(s)
- Patrick Chames
- Aix Marseille Univ, CNRS, Inserm, Institut Paoli-Calmettes, CRCM, Marseille, France
| | - Thierry Wurch
- Centre d'Innovation Thérapeutique en Oncologie - Servier, F78290 Croissy-sur-Seine, France
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12
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Del Bano J, Florès-Florès R, Josselin E, Goubard A, Ganier L, Castellano R, Chames P, Baty D, Kerfelec B. A Bispecific Antibody-Based Approach for Targeting Mesothelin in Triple Negative Breast Cancer. Front Immunol 2019; 10:1593. [PMID: 31354732 PMCID: PMC6636429 DOI: 10.3389/fimmu.2019.01593] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [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: 12/13/2018] [Accepted: 06/26/2019] [Indexed: 11/13/2022] Open
Abstract
Triple negative breast cancers (TNBC) remain a major medical challenge due to poor prognosis and limited treatment options. Mesothelin is a glycosyl-phosphatidyl inositol-linked membrane protein with restricted normal expression and high level expression in a large proportion of TNBC, thus qualifying as an attractive target. Its overexpression in breast tumors has been recently correlated with a decreased disease-free survival and an increase of distant metastases. The objective of the study was to investigate the relevance of a bispecific antibody-based immunotherapy approach through mesothelin targeting and CD16 engagement using a Fab-like bispecific format (MesobsFab). Using two TNBC cell lines with different level of surface mesothelin and epithelial/mesenchymal phenotypes, we showed that, in vitro, MesobsFab promotes the recruitment and penetration of NK cells into tumor spheroids, induces potent dose-dependent cell-mediated cytotoxicity of mesothelin-positive tumor cells, cytokine secretion, and decreases cell invasiveness. MesobsFab was able to induce cytotoxicity in resting human peripheral blood mononuclear cells (PBMC), mainly through its NK cells-mediated antibody dependent cell cytotoxicity (ADCC) activity. In vivo, the anti-tumor effect of MesobsFab depends upon a threshold of MSLN density on target cells. Collectively our data support mesothelin as a relevant therapeutic target for the subset of TNBC that overexpresses mesothelin characterized by a low overall and disease-free survival as well as the potential of MesobsFab as antibody-based immunotherapeutics.
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Affiliation(s)
- Joanie Del Bano
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
| | - Rémy Florès-Florès
- Aix Marseille Univ, CNRS, Institut de Biologie du Développement de Marseille, UMR7288, Marseille, France
| | - Emmanuelle Josselin
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
| | - Armelle Goubard
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
| | - Laetitia Ganier
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
| | - Rémy Castellano
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
| | - Patrick Chames
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
| | - Daniel Baty
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
| | - Brigitte Kerfelec
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmette, CRCM, Marseille, France
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13
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González C, Chames P, Kerfelec B, Baty D, Robert P, Limozin L. Nanobody-CD16 Catch Bond Reveals NK Cell Mechanosensitivity. Biophys J 2019; 116:1516-1526. [PMID: 30979550 PMCID: PMC6486492 DOI: 10.1016/j.bpj.2019.03.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Revised: 02/16/2019] [Accepted: 03/06/2019] [Indexed: 12/15/2022] Open
Abstract
Antibodies are key tools in biomedical research and medicine. Their binding properties are classically measured in solution and characterized by an affinity. However, in physiological conditions, antibodies can bridge an immune effector cell and an antigen-presenting cell, implying that mechanical forces may apply to the bonds. For example, in antibody-dependent cell cytotoxicity-a major mode of action of therapeutic monoclonal antibodies-the Fab domains bind the antigens on the target cell, whereas the Fc domain binds to the activating receptor CD16 (also known as FcgRIII) of an immune effector cell, in a quasi-bidimensional environment (2D). Therefore, there is a strong need to investigate antigen/antibody binding under force (2D) to better understand and predict antibody activity in vivo. We used two anti-CD16 nanobodies targeting two different epitopes and laminar flow chamber assay to measure the association and dissociation of single bonds formed between microsphere-bound CD16 antigens and surface-bound anti-CD16 nanobodies (or single-domain antibodies), simulating 2D encounters. The two nanobodies exhibit similar 2D association kinetics, characterized by a strong dependence on the molecular encounter duration. However, their 2D dissociation kinetics strongly differ as a function of applied force: one exhibits a slip bond behavior in which off rate increases with force, and the other exhibits a catch-bond behavior in which off rate decreases with force. This is the first time, to our knowledge, that catch-bond behavior was reported for antigen-antibody bond. Quantification of natural killer cells spreading on surfaces coated with the nanobodies provides a comparison between 2D and three-dimensional adhesion in a cellular context, supporting the hypothesis of natural killer cell mechanosensitivity. Our results may also have strong implications for the design of efficient bispecific antibodies for therapeutic applications.
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Affiliation(s)
- Cristina González
- Aix Marseille Univ, CNRS, INSERM, LAI, Laboratoire Adhesion et Inflammation, Marseille, France
| | - Patrick Chames
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Centre de Recherche en Cancérologie de Marseille, Marseille, France
| | - Brigitte Kerfelec
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Centre de Recherche en Cancérologie de Marseille, Marseille, France
| | - Daniel Baty
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, Centre de Recherche en Cancérologie de Marseille, Marseille, France
| | - Philippe Robert
- Aix Marseille Univ, CNRS, INSERM, LAI, Laboratoire Adhesion et Inflammation, Marseille, France; Laboratoire d'Immunologie, Assistance Publique - Hôpitaux de Marseille, Marseille, France.
| | - Laurent Limozin
- Aix Marseille Univ, CNRS, INSERM, LAI, Laboratoire Adhesion et Inflammation, Marseille, France.
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14
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Abstract
The isolation of antibody fragments targeting proteins implicated in cancers and other diseases remains a crucial issue on targeted therapy or diagnostic tool development. In many case, the protein of interest, or a relevant portion of this protein such as its extracellular domain, is available as purified protein. In such cases, phage display on purified antigen is an easy and fast way to select antibody fragment able to efficiently bind this antigen. However the output of phage selection can vary significantly depending on the way to immobilize the purified antigen during selection. The following protocols describe the selection of phage antibody on purified antigen adsorbed on plastic, i.e., panning, or a selection in solution, using a biotinylated antigen as well as the corresponding screening produces, and give hints on the advantage and drawbacks of each approach.
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Affiliation(s)
- Magali Colazet
- Centre de Recherche en Cancérologie de Marseille (CRCM), CNRS, INSERM, Institut Paoli-Calmettes, Aix Marseille University, Marseille, France
| | - Patrick Chames
- Institut Paoli-Calmettes, CRCM, Aix Marseille University, CNRS, INSERM, Marseille, France.
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15
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Chanier T, Chames P. Nanobody Engineering: Toward Next Generation Immunotherapies and Immunoimaging of Cancer. Antibodies (Basel) 2019; 8:E13. [PMID: 31544819 PMCID: PMC6640690 DOI: 10.3390/antib8010013] [Citation(s) in RCA: 80] [Impact Index Per Article: 16.0] [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: 12/18/2018] [Revised: 01/16/2019] [Accepted: 01/17/2019] [Indexed: 12/14/2022] Open
Abstract
In the last decade, cancer immunotherapies have produced impressive therapeutic results. However, the potency of immunotherapy is tightly linked to immune cell infiltration within the tumor and varies from patient to patient. Thus, it is becoming increasingly important to monitor and modulate the tumor immune infiltrate for an efficient diagnosis and therapy. Various bispecific approaches are being developed to favor immune cell infiltration through specific tumor targeting. The discovery of antibodies devoid of light chains in camelids has spurred the development of single domain antibodies (also called VHH or nanobody), allowing for an increased diversity of multispecific and/or multivalent formats of relatively small sizes endowed with high tissue penetration. The small size of nanobodies is also an asset leading to high contrasts for non-invasive imaging. The approval of the first therapeutic nanobody directed against the von Willebrand factor for the treatment of acquired thrombotic thrombocypenic purpura (Caplacizumab, Ablynx), is expected to bolster the rise of these innovative molecules. In this review, we discuss the latest advances in the development of nanobodies and nanobody-derived molecules for use in cancer immunotherapy and immunoimaging.
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Affiliation(s)
- Timothée Chanier
- Aix Marseille University, CNRS, INSERM, Institute Paoli-Calmettes, CRCM, 13009 Marseille, France.
| | - Patrick Chames
- Aix Marseille University, CNRS, INSERM, Institute Paoli-Calmettes, CRCM, 13009 Marseille, France.
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16
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Scholler P, Nevoltris D, de Bundel D, Bossi S, Moreno-Delgado D, Rovira X, Møller TC, El Moustaine D, Mathieu M, Blanc E, McLean H, Dupuis E, Mathis G, Trinquet E, Daniel H, Valjent E, Baty D, Chames P, Rondard P, Pin JP. Allosteric nanobodies uncover a role of hippocampal mGlu2 receptor homodimers in contextual fear consolidation. Nat Commun 2017; 8:1967. [PMID: 29213077 PMCID: PMC5719040 DOI: 10.1038/s41467-017-01489-1] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Accepted: 09/15/2017] [Indexed: 11/09/2022] Open
Abstract
Antibodies have enormous therapeutic and biotechnology potential. G protein-coupled receptors (GPCRs), the main targets in drug development, are of major interest in antibody development programs. Metabotropic glutamate receptors are dimeric GPCRs that can control synaptic activity in a multitude of ways. Here we identify llama nanobodies that specifically recognize mGlu2 receptors, among the eight subtypes of mGluR subunits. Among these nanobodies, DN10 and 13 are positive allosteric modulators (PAM) on homodimeric mGlu2, while DN10 displays also a significant partial agonist activity. DN10 and DN13 have no effect on mGlu2-3 and mGlu2-4 heterodimers. These PAMs enhance the inhibitory action of the orthosteric mGlu2/mGlu3 agonist, DCG-IV, at mossy fiber terminals in the CA3 region of hippocampal slices. DN13 also impairs contextual fear memory when injected in the CA3 region of hippocampal region. These data highlight the potential of developing antibodies with allosteric actions on GPCRs to better define their roles in vivo. G protein-coupled receptors are considered promising therapeutic targets. Here, the authors have identified nanobodies, or single-domain llama antibodies, that specifically enhance agonist-induced activity of a type of G protein-coupled receptor, the mGlu2 receptor.
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Affiliation(s)
- Pauline Scholler
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France.,Cisbio Bioassays, F-30200, Codolet, France
| | - Damien Nevoltris
- Cisbio Bioassays, F-30200, Codolet, France.,Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, F-13009, Marseille, France
| | - Dimitri de Bundel
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France
| | - Simon Bossi
- CNRS UMR9197, Université Paris-Sud, Institut des Neurosciences Paris-Saclay, F-91405, Orsay, France
| | - David Moreno-Delgado
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France
| | - Xavier Rovira
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France
| | - Thor C Møller
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France
| | - Driss El Moustaine
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France
| | - Michaël Mathieu
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France
| | - Emilie Blanc
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France
| | - Heather McLean
- CNRS UMR9197, Université Paris-Sud, Institut des Neurosciences Paris-Saclay, F-91405, Orsay, France
| | | | | | | | - Hervé Daniel
- CNRS UMR9197, Université Paris-Sud, Institut des Neurosciences Paris-Saclay, F-91405, Orsay, France
| | - Emmanuel Valjent
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France
| | - Daniel Baty
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, F-13009, Marseille, France
| | - Patrick Chames
- Aix Marseille Univ, CNRS, INSERM, Institut Paoli-Calmettes, CRCM, F-13009, Marseille, France.
| | - Philippe Rondard
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France.
| | - Jean-Philippe Pin
- Institut de Génomique Fonctionnelle, CNRS, INSERM, Univ. Montpellier, F-34094, Montpellier, France.
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17
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Morgand M, Bouvin-Pley M, Plantier JC, Moreau A, Alessandri E, Simon F, Pace CS, Pancera M, Ho DD, Poignard P, Bjorkman PJ, Mouquet H, Nussenzweig MC, Kwong PD, Baty D, Chames P, Braibant M, Barin F. V1/V2 Neutralizing Epitope is Conserved in Divergent Non-M Groups of HIV-1. J Acquir Immune Defic Syndr 2016; 71:237-45. [PMID: 26413851 PMCID: PMC4770367 DOI: 10.1097/qai.0000000000000854] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [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] [Indexed: 01/13/2023]
Abstract
Supplemental Digital Content is Available in the Text. Background: Highly potent broadly neutralizing monoclonal antibodies (bNAbs) have been obtained from individuals infected by HIV-1 group M variants. We analyzed the cross-group neutralization potency of these bNAbs toward non-M primary isolates (PI). Material and Methods: The sensitivity to neutralization was analyzed in a neutralization assay using TZM-bl cells. Twenty-three bNAbs were used, including reagents targeting the CD4-binding site, the N160 glycan-V1/V2 site, the N332 glycan-V3 site, the membrane proximal external region of gp41, and complex epitopes spanning both env subunits. Two bispecific antibodies that combine the inhibitory activity of an anti-CD4 with that of PG9 or PG16 bNAbs were included in the study (PG9-iMab and PG16-iMab). Results: Cross-group neutralization was observed only with the bNAbs targeting the N160 glycan-V1/V2 site. Four group O PIs, 1 group N PI, and the group P PI were neutralized by PG9 and/or PG16 or PGT145 at low concentrations (0.04–9.39 μg/mL). None of the non-M PIs was neutralized by the bNAbs targeting other regions at the highest concentration tested, except 10E8 that neutralized weakly 2 group N PIs and 35O22 that neutralized 1 group O PI. The bispecific bNAbs neutralized very efficiently all the non-M PIs with IC50 below 1 μg/mL, except 2 group O strains. Conclusion: The N160 glycan-V1/V2 site is the most conserved neutralizing site within the 4 groups of HIV-1. This makes it an interesting target for the development of HIV vaccine immunogens. The corresponding bNAbs may be useful for immunotherapeutic strategies in patients infected by non-M variants.
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Affiliation(s)
- Marion Morgand
- *Université François Rabelais, Inserm U966, Tours, France; †Université de Rouen and CHU Charles Nicolle, Rouen, France; ‡Laboratoire de Virologie, Hôpital St Louis, Paris, France; §Aaron Diamond AIDS Research Center, The Rockefeller University, New York, NY; ‖Vaccine Research Center, National Institutes of Health, Bethesda, MD; ¶Department of Immunology and Microbial Science, The Scripps Research Institute, La Jolla, CA; #California Institute of Technology, CA; **Laboratory of Humoral Response to Pathogens, Department of Immunology, Institut Pasteur, Paris, France; ††Howard Hughes Medical Institute, The Rockefeller University, New York, NY; ‡‡CRCM, Inserm U1068; Institut Paoli-Calmettes; CNRS UMR7258; AMU UM105; Marseille, France; and §§Laboratoire de Bactériologie-Virologie, Centre National de Référence du VIH, CHU Bretonneau, Tours, France
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18
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Krüwel T, Nevoltris D, Bode J, Dullin C, Baty D, Chames P, Alves F. In vivo detection of small tumour lesions by multi-pinhole SPECT applying a (99m)Tc-labelled nanobody targeting the Epidermal Growth Factor Receptor. Sci Rep 2016; 6:21834. [PMID: 26912069 PMCID: PMC4766429 DOI: 10.1038/srep21834] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [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: 10/15/2015] [Accepted: 02/02/2016] [Indexed: 11/09/2022] Open
Abstract
The detection of tumours in an early phase of tumour development in combination with the knowledge of expression of tumour markers such as epidermal growth factor receptor (EGFR) is an important prerequisite for clinical decisions. In this study we applied the anti-EGFR nanobody (99m)Tc-D10 for visualizing small tumour lesions with volumes below 100 mm(3) by targeting EGFR in orthotopic human mammary MDA-MB-468 and MDA-MB-231 and subcutaneous human epidermoid A431 carcinoma mouse models. Use of nanobody (99m)Tc-D10 of a size as small as 15.5 kDa enables detection of tumours by single photon emission computed tomography (SPECT) imaging already 45 min post intravenous administration with high tumour uptake (>3% ID/g) in small MDA-MB-468 and A431 tumours, with tumour volumes of 52.5 mm(3) ± 21.2 and 26.6 mm(3) ± 16.7, respectively. Fast blood clearance with a serum half-life of 4.9 min resulted in high in vivo contrast and ex vivo tumour to blood and tissue ratios. In contrast, no accumulation of (99m)Tc-D10 in MDA-MB-231 tumours characterized by a very low expression of EGFR was observed. Here we present specific and high contrast in vivo visualization of small human tumours overexpressing EGFR by preclinical multi-pinhole SPECT shortly after administration of anti-EGFR nanobody (99m)Tc-D10.
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Affiliation(s)
- Thomas Krüwel
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany
| | - Damien Nevoltris
- Antibody therapeutics and Immunotargeting, CRCM, Inserm U1068, Institut PaoliCalmettes, Aix-Marseille Université UM 105, CNRS UMR7258, F-13009, Marseille, France
| | - Julia Bode
- Molecular Mechanisms of Tumour Cell Invasion (V077), German Cancer Research Center, Im Neuenheimer Feld 581, 69120 Heidelberg, Germany
| | - Christian Dullin
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany
| | - Daniel Baty
- Antibody therapeutics and Immunotargeting, CRCM, Inserm U1068, Institut PaoliCalmettes, Aix-Marseille Université UM 105, CNRS UMR7258, F-13009, Marseille, France
| | - Patrick Chames
- Antibody therapeutics and Immunotargeting, CRCM, Inserm U1068, Institut PaoliCalmettes, Aix-Marseille Université UM 105, CNRS UMR7258, F-13009, Marseille, France
| | - Frauke Alves
- Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany.,Department of Haematology and Medical Oncology, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany.,Molecular Biology of Neuronal Signals, Max-Planck-Institute for Experimental Medicine, Hermann-Rein-Str. 3, 37075 Goettingen, Germany
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Prantner AM, Turini M, Kerfelec B, Joshi S, Baty D, Chames P, Scholler N. Anti-Mesothelin Nanobodies for Both Conventional and Nanoparticle-Based Biomedical Applications. J Biomed Nanotechnol 2015; 11:1201-12. [DOI: 10.1166/jbn.2015.2063] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Turini M, Chames P, Bruhns P, Baty D, Kerfelec B. A FcγRIII-engaging bispecific antibody expands the range of HER2-expressing breast tumors eligible to antibody therapy. Oncotarget 2015; 5:5304-19. [PMID: 24979648 PMCID: PMC4170649 DOI: 10.18632/oncotarget.2093] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [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] [Indexed: 11/25/2022] Open
Abstract
Trastuzumab is established as treatment of HER2high metastatic breast cancers but many limitations impair its efficacy. Here, we report the design of a Fab-like bispecific antibody (HER2bsFab) that displays a moderate affinity for HER2 and a unique, specific and high affinity for FcγRIII. In vitro characterization showed that ADCC was the major mechanism of action of HER2bsFab as no significant HER2-driven effect was observed. HER2bsFab mediated ADCC at picomolar concentration against HER2high, HER2low as well as trastuzumab-refractive cell lines. In vivo HER2bsFab potently inhibited HER2high tumor growth by recruitment of mouse FcγRIII and IV-positive resident effector cells and more importantly, exhibited a net superiority over trastuzumab at inhibiting HER2low tumor growth. Moreover, FcγRIIIA-engagement by HER2bsFab was independent of V/F158 polymorphism and induced a stronger NK cells activation in response to target cell recognition. Thus, taking advantage of its epitope specificity and affinity for HER2 and FcγRIIIA, HER2bsFab exhibits potent anti-tumor activity against HER2low tumors while evading most of trastuzumab Fc-linked limitations thereby potentially enlarging the number of patients eligible for breast cancer immunotherapy.
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Affiliation(s)
- Marc Turini
- INSERM, U1068, CRCM, Marseille, France. Institut Paoli-Calmettes, Marseille, France. Aix-Marseille Université, UM105, Marseille, France. CNRS, UMR7258, CRCM, Marseille, France
| | - Patrick Chames
- INSERM, U1068, CRCM, Marseille, France. Institut Paoli-Calmettes, Marseille, France. Aix-Marseille Université, UM105, Marseille, France. CNRS, UMR7258, CRCM, Marseille, France
| | - Pierre Bruhns
- Département d'Immunologie, Laboratoire Anticorps en Thérapie et Pathologie, Institut Pasteur, Paris, France. INSERM, U760, Paris, France
| | - Daniel Baty
- INSERM, U1068, CRCM, Marseille, France. Institut Paoli-Calmettes, Marseille, France. Aix-Marseille Université, UM105, Marseille, France. CNRS, UMR7258, CRCM, Marseille, France
| | - Brigitte Kerfelec
- INSERM, U1068, CRCM, Marseille, France. Institut Paoli-Calmettes, Marseille, France. Aix-Marseille Université, UM105, Marseille, France. CNRS, UMR7258, CRCM, Marseille, France
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21
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Rousserie G, Grinevich R, Brazhnik K, Even-Desrumeaux K, Reveil B, Tabary T, Chames P, Baty D, Cohen JH, Nabiev I, Sukhanova A. Detection of carcinoembryonic antigen using single-domain or full-size antibodies stained with quantum dot conjugates. Anal Biochem 2015; 478:26-32. [DOI: 10.1016/j.ab.2015.02.029] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2014] [Revised: 02/23/2015] [Accepted: 02/28/2015] [Indexed: 12/18/2022]
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22
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Nevoltris D, Lombard B, Dupuis E, Mathis G, Chames P, Baty D. Conformational nanobodies reveal tethered epidermal growth factor receptor involved in EGFR/ErbB2 predimers. ACS Nano 2015; 9:1388-1399. [PMID: 25603171 DOI: 10.1021/nn505752u] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [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: 06/04/2023]
Abstract
The epidermal growth factor receptor (EGFR) is a cell-surface receptor with a single transmembrane domain and tyrosine kinase activity carried by the intracellular domain. This receptor is one of the four members of the ErbB family including ErbB2, ErbB3, and ErbB4. Ligand binding, like EGF binding, induces a conformational rearrangement of the receptor and induces a homo/hetero dimerization essentially with ErbB family receptors that leads to the phosphorylation of the kinase domain, triggering a signaling cascade. EGFR can also form inactive dimers in a ligand-independent way through interactions between cytoplasmic domains. To date, the conformation of EGFR extracellular domain engaged in these inactive dimers remains unclear. In this study, we describe the successful selection and characterization of llama anti-EGFR nanobodies and their use as innovative conformational sensors. We isolated three different specific anti-EGFR clones binding to three distinct epitopes. Interestingly, the binding of all three nanobodies was found highly sensitive to ligand stimulation. Two nanobodies, D10 and E10, can only bind the ligand-free EGFR conformation characterized by an intramolecular tether between domains II and IV, whereas nanobody G10 binds both ligand-free and ligand activated EGFR, with an 8-fold higher affinity for the extended conformation in the presence of ligand. Here we took advantage of these conformational probes to reveal the existence of tethered EGFR in EGFR/ErbB2 predimers. These biosensors represent important tools allowing the determination of EGFR conformations and should help the design of relevant inhibitors.
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Affiliation(s)
- Damien Nevoltris
- Institut National de la Santé et de la Recherche Médicale , U1068, Centre de Recherche en Cancérologie de Marseille, Marseille F-13009, France
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Bilan R, Brazhnik K, Chames P, Baty D, Nabiev I, Sukhanova A. Oriented Conjugates of Single-domain Antibodies and Fluorescent Quantum Dots for Highly Sensitive Detection of Tumor-associated Biomarkers in Cells and Tissues. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.phpro.2015.09.162] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Matz J, Hérate C, Bouchet J, Dusetti N, Gayet O, Baty D, Benichou S, Chames P. Selection of intracellular single-domain antibodies targeting the HIV-1 Vpr protein by cytoplasmic yeast two-hybrid system. PLoS One 2014; 9:e113729. [PMID: 25436999 PMCID: PMC4249982 DOI: 10.1371/journal.pone.0113729] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Accepted: 10/30/2014] [Indexed: 12/12/2022] Open
Abstract
The targeting of HIV-1 using antibodies is of high interest as molecular tools to better understand the biology of the virus or as a first step toward the design of new inhibitors targeting critical viral intracellular proteins. Small and highly stable llama-derived single-domain antibodies can often be functionally expressed as intracellular antibodies in the cytoplasm of eukaryotic cells. Using a selection method based on the Sos Recruitment System, a cytoplasmic yeast two-hybrid approach, we have isolated single-domain antibodies able to bind HIV-1 Vpr and Capside proteins in the yeast cytoplasm. One anti-Vpr single domain antibody was able to bind the HIV-1 regulatory Vpr protein in the cytoplasm of eukaryotic cells, leading to its delocalization from the nucleus to the cytoplasm. To our knowledge, this is the first description of a functional single-domain intrabody targeting HIV-1 Vpr, isolated using an in vivo cytoplasmic selection method that alleviates some limitations of the conventional yeast two-hybrid system.
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Affiliation(s)
- Julie Matz
- Inserm U1068, CRCM, Marseille, France
- Institut Paoli-Calmettes, Marseille, France
- Aix-Marseille Université UM105, Marseille, France
- CNRS, UMR7258, CRCM, Marseille, France
| | - Cécile Hérate
- Institut Cochin, CNRS UMR8104, Paris, France
- Université Paris Descartes, Paris, France
- Inserm U1016, Paris, France
| | - Jérôme Bouchet
- Institut Cochin, CNRS UMR8104, Paris, France
- Université Paris Descartes, Paris, France
- Inserm U1016, Paris, France
| | - Nelson Dusetti
- Inserm U1068, CRCM, Marseille, France
- Institut Paoli-Calmettes, Marseille, France
- Aix-Marseille Université UM105, Marseille, France
- CNRS, UMR7258, CRCM, Marseille, France
| | - Odile Gayet
- Inserm U1068, CRCM, Marseille, France
- Institut Paoli-Calmettes, Marseille, France
- Aix-Marseille Université UM105, Marseille, France
- CNRS, UMR7258, CRCM, Marseille, France
| | - Daniel Baty
- Inserm U1068, CRCM, Marseille, France
- Institut Paoli-Calmettes, Marseille, France
- Aix-Marseille Université UM105, Marseille, France
- CNRS, UMR7258, CRCM, Marseille, France
| | - Serge Benichou
- Institut Cochin, CNRS UMR8104, Paris, France
- Université Paris Descartes, Paris, France
- Inserm U1016, Paris, France
| | - Patrick Chames
- Inserm U1068, CRCM, Marseille, France
- Institut Paoli-Calmettes, Marseille, France
- Aix-Marseille Université UM105, Marseille, France
- CNRS, UMR7258, CRCM, Marseille, France
- * E-mail:
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Bouvin-Pley M, Morgand M, Moreau A, Meyer L, Goujard C, Mouquet H, Nussenzweig MC, Pace CS, Ho DD, Bjorkman PJ, Baty D, Chames P, Pancera M, Kwong PD, Poignard P, Barin F, Braibant M. Adaptation of HIV-1 Envelope Glycoprotein gp120 to Humoral Immunity over the Course of the Epidemic. AIDS Res Hum Retroviruses 2014. [DOI: 10.1089/aid.2014.5490.abstract] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | | | | | - Laurence Meyer
- CESP INSERM U 1018, Paris, France
- AP-HP, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France
| | - Cécile Goujard
- CESP INSERM U 1018, Paris, France
- AP-HP, Hôpital de Bicêtre, Le Kremlin-Bicêtre, France
| | | | - Michel C. Nussenzweig
- Howard Hughes Medical Institute (HHMI), Rockefeller University, New York, NY, United States
| | - Craig S. Pace
- Aaron Diamond AIDS Research Center, Rockefeller University, New York, NY, United States
| | - David D. Ho
- Aaron Diamond AIDS Research Center, Rockefeller University, New York, NY, United States
| | | | | | | | - Marie Pancera
- Vaccine Research Center, NIH, Bethesda, MD, United States
| | - Peter D. Kwong
- Vaccine Research Center, NIH, Bethesda, MD, United States
| | - Pascal Poignard
- International AIDS Vaccine Initiative (IAVI), Neutralizing Antibody Center, Scripps Research Institute, Immunology and Microbial Science, La Jolla, CA, United States
| | - Francis Barin
- INSERM U 966, Tours, France
- Laboratoire de Bactériologie-Virologie, CHU Bretonneau, Tours, France
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Rakovich TY, Mahfoud OK, Mohamed BM, Prina-Mello A, Crosbie-Staunton K, Van Den Broeck T, De Kimpe L, Sukhanova A, Baty D, Rakovich A, Maier SA, Alves F, Nauwelaers F, Nabiev I, Chames P, Volkov Y. Highly sensitive single domain antibody-quantum dot conjugates for detection of HER2 biomarker in lung and breast cancer cells. ACS Nano 2014; 8:5682-95. [PMID: 24873349 DOI: 10.1021/nn500212h] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Despite the widespread availability of immunohistochemical and other methodologies for screening and early detection of lung and breast cancer biomarkers, diagnosis of the early stage of cancers can be difficult and prone to error. The identification and validation of early biomarkers specific to lung and breast cancers, which would permit the development of more sensitive methods for detection of early disease onset, is urgently needed. In this paper, ultra-small and bright nanoprobes based on quantum dots (QDs) conjugated to single domain anti-HER2 (human epidermal growth factor receptor 2) antibodies (sdAbs) were applied for immunolabeling of breast and lung cancer cell lines, and their performance was compared to that of anti-HER2 monoclonal antibodies conjugated to conventional organic dyes Alexa Fluor 488 and Alexa Fluor 568. The sdAbs-QD conjugates achieved superior staining in a panel of lung cancer cell lines with differential HER2 expression. This shows their outstanding potential for the development of more sensitive assays for early detection of cancer biomarkers.
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Affiliation(s)
- Tatsiana Y Rakovich
- School of Medicine, Department of Clinical Medicine, Institute of Molecular Medicine, Trinity College , Dublin 8, Ireland
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Even-Desrumeaux K, Nevoltris D, Lavaut MN, Alim K, Borg JP, Audebert S, Kerfelec B, Baty D, Chames P. Masked selection: a straightforward and flexible approach for the selection of binders against specific epitopes and differentially expressed proteins by phage display. Mol Cell Proteomics 2013; 13:653-65. [PMID: 24361863 DOI: 10.1074/mcp.o112.025486] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Phage display is a well-established procedure to isolate binders against a wide variety of antigens that can be performed on purified antigens, but also on intact cells. As selection steps are performed in vitro, it is possible to focus the outcome of the selection on relevant epitopes by performing some additional steps, such as depletion or competitive elutions. However in practice, the efficiency of these steps is often limited and can lead to inconsistent results. We have designed a new selection method named masked selection, based on the blockade of unwanted epitopes to favor the targeting of relevant ones. We demonstrate the efficiency and flexibility of this method by selecting single-domain antibodies against a specific portion of a fusion protein, by selecting binders against several members of the seven transmembrane receptor family using transfected HEK cells, or by selecting binders against unknown breast cancer markers not expressed on normal samples. The relevance of this approach for antibody-based therapies was further validated by the identification of four of these markers, Epithelial cell adhesion molecule, Transferrin receptor 1, Metastasis cell adhesion molecule, and Sushi containing domain 2, using immunoprecipitation and mass spectrometry. This new phage display strategy can be applied to any type of antibody fragments or alternative scaffolds, and is especially suited for the rapid discovery and identification of cell surface markers.
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Rozan C, Cornillon A, Pétiard C, Chartier M, Behar G, Boix C, Kerfelec B, Robert B, Pèlegrin A, Chames P, Teillaud JL, Baty D. Single-Domain Antibody–Based and Linker-Free Bispecific Antibodies Targeting FcγRIII Induce Potent Antitumor Activity without Recruiting Regulatory T Cells. Mol Cancer Ther 2013; 12:1481-91. [DOI: 10.1158/1535-7163.mct-12-1012] [Citation(s) in RCA: 50] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Acharya P, Luongo TS, Matz J, Schmidt SD, Chuang G, Georgiev I, Kessler P, Yang Y, Chames P, Martin L, Mascola JR, Kwong PD. Structural definition of a novel CD4-induced epitope that is targeted by a single-headed immunoglobulin to effect broad and potent HIV neutralization. Retrovirology 2012. [PMCID: PMC3441789 DOI: 10.1186/1742-4690-9-s2-p346] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Matz J, Kessler P, Bouchet J, Combes O, Baty D, Martin L, Benichou S, Chames P. Straightforward selection of broadly neutralizing single-domain antibodies targeting the conserved CD4 and co-receptor binding sites of HIV-1 gp120. Retrovirology 2012. [PMCID: PMC3441764 DOI: 10.1186/1742-4690-9-s2-p214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Nabiev I, Sukhanova A, Even-Desrumeaux K, Chames P, Baty D, Artemyev M, Oleinikov V, Nabiev I. Engineering of ultra-small diagnostic nanoprobes through oriented conjugation of single-domain antibodies and quantum dots. ACTA ACUST UNITED AC 2012. [DOI: 10.1038/protex.2012.042] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Even-Desrumeaux K, Fourquet P, Secq V, Baty D, Chames P. Single-domain antibodies: a versatile and rich source of binders for breast cancer diagnostic approaches. Mol Biosyst 2012; 8:2385-94. [PMID: 22772166 DOI: 10.1039/c2mb25063b] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Noninvasive early detection of breast cancer through the use of biomarkers is urgently needed since the risk of recurrence, morbidity, and mortality is closely related to disease stage at the time of primary surgery. A crucial issue in this approach is the availability of relevant markers and corresponding monoclonal antibodies suitable for the development of effective immunodiagnostic modalities. The identification of such markers from human pathological lesions and the isolation of specific antibodies using conventional approaches remain major challenges. Camelids produce functional antibodies devoid of light chains in which the single N-terminal domain of the heavy chain is fully capable of antigen binding. When produced as an independent domain, these so-called single-domain antibody fragments (sdAbs) or nanobodies have several advantages for biotechnological applications owing to their unique properties of size (13 kDa), stability, solubility, and expression yield. In this work, we have generated phage display libraries from animals immunized with breast cancer biopsies. These libraries were used to isolate sdAbs against known and relevant antigens such as HER2, or several cancer-specific sdAbs against unknown targets. We describe the identification of one these targets, cytokeratin 19, using affinity purification in combination with mass spectrometry. Some of these sdAbs were used in several straightforward diagnostic applications such as immunohistochemical analysis of tumor samples, multiplexed cytometric bead array analysis of crude samples, or an immune enrichment procedure of rare cells. Here, we demonstrate that phage display-based selection of single-domain antibodies is an efficient and high-throughput compatible approach to generate binders with excellent characteristics for the fast development of diagnostic and prognostic modalities.
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Abstract
Affinity determination is a crucial step of an antibody characterization. Here, we describe a method for antibody affinity determination by flow cytometry, relying on the unique affinity of biotin for streptavidin for easy and efficient antibody labeling. Several labeling approaches are described and discussed in this chapter, including chemical and enzymatic (in vivo and in vitro) biotinylation. Finally, a procedure for K (D) determination by flow cytometry is precisely described.
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Abstract
The isolation of antibody fragments targeting proteins implicated in cancers and other diseases remains a crucial issue on targeted therapy or diagnostic tool development (Hoogenboom HR, Henderikx P, de Haard H. Adv Drug Deliv Rev 31 (1-2):5-31, 1998). In many case, the protein of interest, or a relevant portion of this protein such as its extracellular domain is available as purified protein. In such cases, phage display on purified antigen is an easy and fast way to select antibody fragment able to efficiently bind this antigen. However, the output of phage selection can vary significantly depending on the way to immobilize the purified antigen during selection. The following protocols describe the selection of phage antibody on purified antigen adsorbed on plastic, i.e. panning, or a selection in solution, using a biotinylated antigen as well as the corresponding screening produces, and gives hints on the advantage and drawbacks of each approach.
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Even-Desrumeaux K, Baty D, Chames P. Strong and oriented immobilization of single domain antibodies from crude bacterial lysates for high-throughput compatible cost-effective antibody array generation. Mol Biosyst 2010; 6:2241-8. [PMID: 20859568 DOI: 10.1039/c005279e] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Antibody microarrays are among the novel class of rapidly emerging proteomic technologies that will allow us to efficiently perform specific diagnoses and proteomic analysis. Recombinant antibody fragments are especially suited for this approach but their stability is often a limiting factor. Camelids produce functional antibodies devoid of light chains (HCAbs) of which the single N-terminal domain is fully capable of antigen binding. When produced as an independent domain, these so-called single domain antibody fragments (sdAbs) have several advantages for biotechnological applications thanks to their unique properties of size (15 kDa), stability, solubility, and expression yield. These features should allow sdAbs to outperform other antibody formats in a number of applications, notably as capture molecules for antibody arrays. In this study, we have produced antibody microarrays using direct and oriented immobilization of sdAbs, produced in crude bacterial lysates, to generate a proof-of-principle of a high-throughput compatible array design. Several sdAb immobilization strategies have been explored. Immobilization of in vivo biotinylated sdAbs by direct spotting of bacterial lysate on streptavidin and sandwich detection was developed to achieve high sensitivity and specificity, whereas immobilization of "multi-tagged" sdAbs via anti-tag antibodies and a direct labeled sample detection strategy was optimized for the design of high-density antibody arrays for high-throughput proteomics and identification of potential biomarkers.
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Abstract
Pancreatic cancer is a devastating disease with the worst mortality rate and an overall 5-year survival rate lower than 5%. In the U.S., this disease is the fourth leading cause of death and represents 6% of all cancer-related deaths. Gemcitabine, the current standard first-line treatment, offers marginal benefits to patients in terms of symptom control and prolongation of life. Since 1996, about 20 randomized phase III trials have been performed to improve the efficacy of gemcitabine, with little success regarding a significant improvement in survival outcomes. The need for novel therapeutic strategies, such as target therapy, is obvious. Monoclonal antibodies have finally come of age as therapeutics and several molecules are now approved for cancer therapies. This review aims to give a general view on the clinical results obtained so far by antibodies for the treatment of pancreatic cancer and describes the most promising avenues toward a significant improvement in the treatment of this frustrating disease.
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Abstract
With 23 approvals in the US and other countries and four approvals outside US, antibodies are now widely recognized as therapeutic molecules. The therapeutic and commercial successes met by rituximab, trastuzumab, cetuximab and other mAbs have inspired antibody engineers to improve the efficacy of these molecules. Consequently, a new wave of antibodies with engineered Fc leading to much higher effector functions such as antibody-dependent cell-mediated cytotoxicity or complement-dependent cytotoxicity is being evaluated in the clinic, and several approvals are expected soon. In addition, research on a different class of antibody therapeutics, bispecific antibodies, has recently led to outstanding clinical results, and the first approval of the bispecific antibody catumaxomab, a T cell retargeting agent that was approved in the European Union in April 2009. This review describes the most recent advances and clinical study results in the field of bispecific antibodies, a new class of molecules that might outshine conventional mAbs as cancer immunotherapeutics in a near future.
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Abstract
Monoclonal antibodies are now established as key therapeutics for a range of diseases including cancer and auto-immunity. However, despite important improvements, these molecules still face several serious limitations including production costs and tumor penetration. A new class of antibody fragments, made of a single immunoglobulin domain, is emerging as an exciting alternative. This review describes the outstanding properties and the first achievements of these domain antibodies.
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Affiliation(s)
- Patrick Chames
- Anticorps thérapeutiques et immunociblage, Inserm U624, GDR 3260, 163, avenue de Luminy, 13288 Marseille Cedex 09, France.
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Rousserie G, Sukhanova A, Even-Desrumeaux K, Fleury F, Chames P, Baty D, Oleinikov V, Pluot M, Cohen JH, Nabiev I. Semiconductor quantum dots for multiplexed bio-detection on solid-state microarrays. Crit Rev Oncol Hematol 2010; 74:1-15. [DOI: 10.1016/j.critrevonc.2009.04.006] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2008] [Revised: 04/09/2009] [Accepted: 04/17/2009] [Indexed: 10/20/2022] Open
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Behar G, Chames P, Teulon I, Cornillon A, Alshoukr F, Roquet F, Pugnière M, Teillaud JL, Gruaz-Guyon A, Pèlegrin A, Baty D. Llama single-domain antibodies directed against nonconventional epitopes of tumor-associated carcinoembryonic antigen absent from nonspecific cross-reacting antigen. FEBS J 2009; 276:3881-93. [DOI: 10.1111/j.1742-4658.2009.07101.x] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Chames P, Van Regenmortel M, Weiss E, Baty D. Therapeutic antibodies: successes, limitations and hopes for the future. Br J Pharmacol 2009; 157:220-33. [PMID: 19459844 PMCID: PMC2697811 DOI: 10.1111/j.1476-5381.2009.00190.x] [Citation(s) in RCA: 1112] [Impact Index Per Article: 74.1] [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: 06/30/2008] [Revised: 09/01/2008] [Accepted: 01/12/2009] [Indexed: 11/28/2022] Open
Abstract
With more than 20 molecules in clinical use, monoclonal antibodies have finally come of age as therapeutics, generating a market value of $11 billion in 2004, expected to reach $26 billion by 2010. While delivering interesting results in the treatment of several major diseases including autoimmune, cardiovascular and infectious diseases, cancer and inflammation, clinical trials and research are generating a wealth of useful information, for instance about associations of clinical responses with Fc receptor polymorphisms and the infiltration and recruitment of effector cells into targeted tissues. Some functional limitations of therapeutic antibodies have come to light such as inadequate pharmacokinetics and tissue accessibility as well as impaired interactions with the immune system, and these deficiencies point to areas where additional research is needed. This review aims at giving an overview of the current state of the art and describes the most promising avenues that are being followed to create the next generation of antibody-based therapeutic agents.
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Affiliation(s)
- Patrick Chames
- Laboratoire d'Ingénierie des Systèmes Macromoléculaires, CNRS, UPR9027, GDR2352, 31 chemin Joseph Aiguier, F-13402 Marseille Cedex 20, France.
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Chames P, Baty D. Bispecific antibodies for cancer therapy. Curr Opin Drug Discov Devel 2009; 12:276-283. [PMID: 19333873] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
In recent decades, mAbs have emerged as therapeutics. Nine mAbs have been approved for cancer therapy. However, the efficiency of mAbs is far from optimal, and antibody engineering is actively used to improve the molecules. Because of their ability to simultaneously bind two different antigens, bispecific antibodies are unique, and their wide potential as targeting reagents has been demonstrated over the years. However their use as therapeutics has been restrained by manufacturing challenges. Several new recombinant formats have changed the situation. Innovative molecules have led to impressive preclinical and clinical results, and hold great promise. This review presents an overview of the most promising candidates.
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Affiliation(s)
- Patrick Chames
- Institut de Biologie Structurale et Microbiologie, Laboratoire d'Ingénierie des Systèmes Macromoléculaires, CNRS UPR 9027, GDR 2352, 31 chemin Joseph Aiguier, 13402 Marseille Cedex 20, France.
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Willemsen R, Chames P, Schooten E, Gratama JW, Debets R. Selection of human antibody fragments directed against tumor T-cell epitopes for adoptive T-cell therapy. Cytometry A 2008; 73:1093-9. [DOI: 10.1002/cyto.a.20644] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Behar G, Siberil S, Groulet A, Chames P, Pugniere M, Boix C, Sautes-Fridman C, Teillaud JL, Baty D. Isolation and characterization of anti-Fc RIII (CD16) llama single-domain antibodies that activate natural killer cells. Protein Eng Des Sel 2007; 21:1-10. [DOI: 10.1093/protein/gzm064] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Smith J, Grizot S, Arnould S, Duclert A, Epinat JC, Chames P, Prieto J, Redondo P, Blanco FJ, Bravo J, Montoya G, Pâques F, Duchateau P. A combinatorial approach to create artificial homing endonucleases cleaving chosen sequences. Nucleic Acids Res 2006; 34:e149. [PMID: 17130168 PMCID: PMC1702487 DOI: 10.1093/nar/gkl720] [Citation(s) in RCA: 240] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Meganucleases, or homing endonucleases (HEs) are sequence-specific endonucleases with large (>14 bp) cleavage sites that can be used to induce efficient homologous gene targeting in cultured cells and plants. These findings have opened novel perspectives for genome engineering in a wide range of fields, including gene therapy. However, the number of identified HEs does not match the diversity of genomic sequences, and the probability of finding a homing site in a chosen gene is extremely low. Therefore, the design of artificial endonucleases with chosen specificities is under intense investigation. In this report, we describe the first artificial HEs whose specificity has been entirely redesigned to cleave a naturally occurring sequence. First, hundreds of novel endonucleases with locally altered substrate specificity were derived from I-CreI, a Chlamydomonas reinhardti protein belonging to the LAGLIDADG family of HEs. Second, distinct DNA-binding subdomains were identified within the protein. Third, we used these findings to assemble four sets of mutations into heterodimeric endonucleases cleaving a model target or a sequence from the human RAG1 gene. These results demonstrate that the plasticity of LAGLIDADG endonucleases allows extensive engineering, and provide a general method to create novel endonucleases with tailored specificities.
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Affiliation(s)
| | | | | | | | | | | | - Jesús Prieto
- Structural Biology and Biocomputing Programme, Centro Nacional de Investigaciones Oncológicas (CNIO)C/ Melchor Fdez Almagro, 28029 Madrid, Spain
| | - Pilar Redondo
- Structural Biology and Biocomputing Programme, Centro Nacional de Investigaciones Oncológicas (CNIO)C/ Melchor Fdez Almagro, 28029 Madrid, Spain
| | - Francisco J. Blanco
- Structural Biology and Biocomputing Programme, Centro Nacional de Investigaciones Oncológicas (CNIO)C/ Melchor Fdez Almagro, 28029 Madrid, Spain
| | - Jerónimo Bravo
- Structural Biology and Biocomputing Programme, Centro Nacional de Investigaciones Oncológicas (CNIO)C/ Melchor Fdez Almagro, 28029 Madrid, Spain
| | - Guillermo Montoya
- Structural Biology and Biocomputing Programme, Centro Nacional de Investigaciones Oncológicas (CNIO)C/ Melchor Fdez Almagro, 28029 Madrid, Spain
| | - Frédéric Pâques
- To whom correspondence should be addressed. Tel: +33 1 41 83 99 00; Fax: +33 1 41 83 99 03;
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Chames P, Epinat JC, Guillier S, Patin A, Lacroix E, Pâques F. In vivo selection of engineered homing endonucleases using double-strand break induced homologous recombination. Nucleic Acids Res 2005; 33:e178. [PMID: 16306233 PMCID: PMC1289081 DOI: 10.1093/nar/gni175] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022] Open
Abstract
Homing endonucleases, endonucleases capable of recognizing long DNA sequences, have been shown to be a tool of choice for precise and efficient genome engineering. Consequently, the possibility to engineer novel endonucleases with tailored specificities is under strong investigation. In this report, we present a simple and efficient method to select meganucleases from libraries of variants, based on their cleavage properties. The method has the advantage of directly selecting for the ability to induce double-strand break induced homologous recombination in a eukaryotic environment. Model selections demonstrated high levels of enrichments. Moreover, this method compared favorably with phage display for enrichment of active mutants from a mutant library. This approach makes possible the exploration of large sequence spaces and thereby represents a valuable tool for genome engineering.
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Affiliation(s)
| | | | | | | | | | - Frédéric Pâques
- To whom correspondence should be addressed. Tel: +33 1 41 83 99 00; Fax: +33 1 41 83 99 03;
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Arnould S, Chames P, Perez C, Lacroix E, Duclert A, Epinat JC, Stricher F, Petit AS, Patin A, Guillier S, Rolland S, Prieto J, Blanco FJ, Bravo J, Montoya G, Serrano L, Duchateau P, Pâques F. Engineering of large numbers of highly specific homing endonucleases that induce recombination on novel DNA targets. J Mol Biol 2005; 355:443-58. [PMID: 16310802 DOI: 10.1016/j.jmb.2005.10.065] [Citation(s) in RCA: 139] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2005] [Revised: 10/19/2005] [Accepted: 10/24/2005] [Indexed: 12/21/2022]
Abstract
The last decade has seen the emergence of a universal method for precise and efficient genome engineering. This method relies on the use of sequence-specific endonucleases such as homing endonucleases. The structures of several of these proteins are known, allowing for site-directed mutagenesis of residues essential for DNA binding. Here, we show that a semi-rational approach can be used to derive hundreds of novel proteins from I-CreI, a homing endonuclease from the LAGLIDADG family. These novel endonucleases display a wide range of cleavage patterns in yeast and mammalian cells that in most cases are highly specific and distinct from I-CreI. Second, rules for protein/DNA interaction can be inferred from statistical analysis. Third, novel endonucleases can be combined to create heterodimeric protein species, thereby greatly enhancing the number of potential targets. These results describe a straightforward approach for engineering novel endonucleases with tailored specificities, while preserving the activity and specificity of natural homing endonucleases, and thereby deliver new tools for genome engineering.
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Affiliation(s)
- Sylvain Arnould
- CELLECTIS S.A., 102 route de Noisy 93235 Romainville, France
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Willemsen RA, Ronteltap C, Chames P, Debets R, Bolhuis RLH. T cell retargeting with MHC class I-restricted antibodies: the CD28 costimulatory domain enhances antigen-specific cytotoxicity and cytokine production. J Immunol 2005; 174:7853-8. [PMID: 15944290 DOI: 10.4049/jimmunol.174.12.7853] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
T cells require both primary and costimulatory signals for optimal activation. The primary Ag-specific signal is delivered by engagement of the TCR. The second Ag-independent costimulatory signal is mediated by engagement of the T cell surface costimulatory molecule CD28 with its target cell ligand B7. However, many tumor cells do not express these costimulatory molecules. We previously constructed phage display derived F(AB), G8, and Hyb3, Ab-based receptors with identical specificity but distinct affinities for HLA-A1/MAGE-A1, i.e., "TCR-like" specificity. These chimeric receptors comprised the FcepsilonRI-gamma signaling element. We analyzed whether linking the CD28 costimulation structure to it (gamma + CD28) could affect the levels of MHC-restricted cytolysis and/or cytokine production. Human scFv-G8(POS) T lymphocytes comprising the gamma + CD28 vs the gamma signaling element alone produced substantially more IL-2, TNF-alpha, and IFN-gamma in response to HLA-A1/MAGE-A1(POS) melanoma cells. Also a drastic increase in cytolytic capacity of scFv-G8(POS) T cells, equipped with gamma + CD28 vs the gamma-chain alone was observed.
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MESH Headings
- Adjuvants, Immunologic/genetics
- Adjuvants, Immunologic/metabolism
- Adjuvants, Immunologic/toxicity
- Antigens, Neoplasm
- Binding Sites, Antibody/genetics
- CD28 Antigens/genetics
- CD28 Antigens/immunology
- CD28 Antigens/physiology
- Cell Line, Tumor
- Cytokines/biosynthesis
- Cytotoxicity, Immunologic/genetics
- Epitopes, T-Lymphocyte/genetics
- Epitopes, T-Lymphocyte/immunology
- Epitopes, T-Lymphocyte/toxicity
- HLA-A1 Antigen/genetics
- HLA-A1 Antigen/immunology
- HLA-A1 Antigen/metabolism
- Humans
- Immunoglobulin Fab Fragments/genetics
- Immunoglobulin Fab Fragments/metabolism
- Immunoglobulin Fab Fragments/toxicity
- Immunoglobulin Variable Region/genetics
- Immunoglobulin Variable Region/metabolism
- K562 Cells
- Lymphocyte Activation/genetics
- Melanoma/immunology
- Melanoma/pathology
- Melanoma-Specific Antigens
- Neoplasm Proteins/genetics
- Neoplasm Proteins/immunology
- Neoplasm Proteins/metabolism
- Protein Structure, Tertiary/genetics
- Receptors, Antigen, T-Cell/biosynthesis
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/metabolism
- Receptors, IgE/genetics
- Receptors, IgE/metabolism
- Receptors, IgE/physiology
- Signal Transduction/genetics
- Signal Transduction/immunology
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/metabolism
- Transduction, Genetic/methods
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Affiliation(s)
- Ralph A Willemsen
- Laboratory of Tumor Immunology, Department of Medical Oncology, Erasmus Medisch Centrum Daniel den hoed, Rotterdam, The Netherlands.
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Dieckmann D, Schultz ES, Ring B, Chames P, Held G, Hoogenboom HR, Schuler G. Optimizing the exogenous antigen loading of monocyte-derived dendritic cells. Int Immunol 2005; 17:621-35. [PMID: 15824067 DOI: 10.1093/intimm/dxh243] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Dendritic cell (DC) vaccination, i.e. the adoptive transfer of antigen-loaded DC, is still at an early stage and requires standardization. In this study, we investigated the exogenous loading of monocyte-derived DCs with HLA class I- and II-restricted peptides, as despite widespread use, little effort has been put into its pre-clinical validation. We found that only mature DCs (m-DC) but not immature DCs (im-DC) could be sufficiently loaded with exogenous class I-restricted peptides and were by far superior in expanding CD8(+) primary (Melan-A.A2 peptide-specific) and recall [Influenza matrix peptide (IMP) A2-specific] T cell responses. Primary stimulation with peptide-loaded im-DCs even down-regulated antigen-specific T cell responses. Our results indicate that stimulation with m-DCs is superior in terms of quantity and quality compared with im-DCs, supporting their preferred use in clinical DC trials. Loading of m-DCs with high (10 microM) concentrations generated clearly more Melan-A effectors than loading with 1 or 0.1 microM without any negative effect on the quality (affinity) of the resulting T cells. In contrast to the findings with the Melan-A peptide loading with 10 microM IMP was counter-productive, induced apoptosis and yielded fewer specific T cells of inferior affinity as compared with loading with 1 or 0.1 microM. In sharp contrast to the situation for HLA class I, much higher levels and longer half-lives of peptide-HLA class II complexes were obtainable upon loading of im-DCs with exogenous peptide, but m-DCs were functionally preferable to induce T(h)1 responses in vitro. Another surprising finding was that, while presentation to T cells upon simultaneous loading of several peptides with highly varying affinities and competing for the same class I or II molecule was possible, in priming experiments peptide competition clearly inhibited T cell induction. Although peptides will obviously vary in their individual properties, our study clearly points to some important principles that should be taken into account.
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Affiliation(s)
- Detlef Dieckmann
- Department of Dermatology, University Hospital Erlangen, Erlangen, Germany.
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Hülsmeyer M, Chames P, Hillig RC, Stanfield RL, Held G, Coulie PG, Alings C, Wille G, Saenger W, Uchanska-Ziegler B, Hoogenboom HR, Ziegler A. A major histocompatibility complex-peptide-restricted antibody and t cell receptor molecules recognize their target by distinct binding modes: crystal structure of human leukocyte antigen (HLA)-A1-MAGE-A1 in complex with FAB-HYB3. J Biol Chem 2004; 280:2972-80. [PMID: 15537658 DOI: 10.1074/jbc.m411323200] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Antibodies with T cell receptor-like specificity possess a considerable diagnostic and therapeutic potential, but the structural basis of the interaction between an antibody and an histocompatibility antigen has so far not been determined. We present here the crystal structure (at 2.15 A resolution) of the recombinant, affinity-matured human antibody fragment Fab-Hyb3 bound to the tumor-associated human leukocyte antigen (HLA)/peptide complex HLA-A1.MAGE-A1. Fab-Hyb3 employs a diagonal docking mode resembling that of T cell receptors. However, other than these natural ligands, the antibody uses only four of its six complementarity-determining regions for direct interactions with the target. It recognizes the C-terminal half of the MAGE-A1 peptide, the HLA-A1 alpha1-helix, and N-terminal residues of the alpha2-helix, accompanied by a large tilting angle between the two types of molecules within the complex. Interestingly, only a single hydrogen bond between a peptide side chain and Fab-Hyb3 contributes to the interaction, but large buried surface areas with pronounced shape complementarity assure high affinity and specificity for MAGE-A1. The HLA-A1.MAGE-A1.antibody structure is discussed in comparison with those of natural ligands recognizing HLA.peptide complexes.
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Affiliation(s)
- Martin Hülsmeyer
- Institut für Chemie/Kristallographie, Freie Universität Berlin, 14195 Berlin, Germany, Cellectis, 93235 Romainville, France
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