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Andersson H, Nyesiga B, Hermodsson T, Enell Smith K, Hägerbrand K, Lindstedt M, Ellmark P. Next-generation CD40 agonists for cancer immunotherapy. Expert Opin Biol Ther 2024; 24:351-363. [PMID: 38764393 DOI: 10.1080/14712598.2024.2357714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Accepted: 05/16/2024] [Indexed: 05/21/2024]
Abstract
INTRODUCTION There is a need for new therapies that can enhance response rates and broaden the number of cancer indications where immunotherapies provide clinical benefit. CD40 targeting therapies provide an opportunity to meet this need by promoting priming of tumor-specific T cells and reverting the suppressive tumor microenvironment. This is supported by emerging clinical evidence demonstrating the benefits of immunotherapy with CD40 antibodies in combination with standard of care chemotherapy. AREAS COVERED This review is focused on the coming wave of next-generation CD40 agonists aiming to improve efficacy and safety, using new approaches and formats beyond monospecific antibodies. Further, the current understanding of the role of different CD40 expressing immune cell populations in the tumor microenvironment is reviewed. EXPERT OPINION There are multiple promising next-generation approaches beyond monospecific antibodies targeting CD40 in immuno-oncology. Enhancing efficacy is the most important driver for this development, and approaches that maximize the ability of CD40 to both remodel the tumor microenvironment and boost the anti-tumor T cell response provide great opportunities to benefit cancer patients. Enhanced understanding of the role of different CD40 expressing immune cells in the tumor microenvironment may facilitate more efficient clinical development of these compounds.
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Affiliation(s)
- Hampus Andersson
- Alligator Bioscience, Alligator Bioscience AB, Lund, Sweden
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Barnabas Nyesiga
- Alligator Bioscience, Alligator Bioscience AB, Lund, Sweden
- Department of Biomedical Science, Malmö University, Malmö, Sweden
| | - Tova Hermodsson
- Department of Immunotechnology, Lund University, Lund, Sweden
| | | | | | - Malin Lindstedt
- Alligator Bioscience, Alligator Bioscience AB, Lund, Sweden
- Department of Immunotechnology, Lund University, Lund, Sweden
| | - Peter Ellmark
- Alligator Bioscience, Alligator Bioscience AB, Lund, Sweden
- Department of Immunotechnology, Lund University, Lund, Sweden
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2
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Wijfjes Z, van Dalen FJ, Le Gall CM, Verdoes M. Controlling Antigen Fate in Therapeutic Cancer Vaccines by Targeting Dendritic Cell Receptors. Mol Pharm 2023; 20:4826-4847. [PMID: 37721387 PMCID: PMC10548474 DOI: 10.1021/acs.molpharmaceut.3c00330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 09/05/2023] [Accepted: 09/07/2023] [Indexed: 09/19/2023]
Abstract
Antigen-presenting cells (APCs) orchestrate immune responses and are therefore of interest for the targeted delivery of therapeutic vaccines. Dendritic cells (DCs) are professional APCs that excel in presentation of exogenous antigens toward CD4+ T helper cells, as well as cytotoxic CD8+ T cells. DCs are highly heterogeneous and can be divided into subpopulations that differ in abundance, function, and phenotype, such as differential expression of endocytic receptor molecules. It is firmly established that targeting antigens to DC receptors enhances the efficacy of therapeutic vaccines. While most studies emphasize the importance of targeting a specific DC subset, we argue that the differential intracellular routing downstream of the targeted receptors within the DC subset should also be considered. Here, we review the mouse and human receptors studied as target for therapeutic vaccines, focusing on antibody and ligand conjugates and how their targeting affects antigen presentation. We aim to delineate how targeting distinct receptors affects antigen presentation and vaccine efficacy, which will guide target selection for future therapeutic vaccine development.
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Affiliation(s)
- Zacharias Wijfjes
- Chemical
Immunology group, Department of Medical BioSciences, Radboud University Medical Center, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
- Institute
for Chemical Immunology, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
| | - Floris J. van Dalen
- Chemical
Immunology group, Department of Medical BioSciences, Radboud University Medical Center, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
- Institute
for Chemical Immunology, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
| | - Camille M. Le Gall
- Chemical
Immunology group, Department of Medical BioSciences, Radboud University Medical Center, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
- Institute
for Chemical Immunology, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
| | - Martijn Verdoes
- Chemical
Immunology group, Department of Medical BioSciences, Radboud University Medical Center, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
- Institute
for Chemical Immunology, Geert Grooteplein Zuid 28, 6525 GA Nijmegen, The Netherlands
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Macri C, Jenika D, Ouslinis C, Mintern JD. Targeting dendritic cells to advance cross-presentation and vaccination outcomes. Semin Immunol 2023; 68:101762. [PMID: 37167898 DOI: 10.1016/j.smim.2023.101762] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 04/06/2023] [Accepted: 04/06/2023] [Indexed: 05/13/2023]
Abstract
Dendritic cells (DCs) are a complex network of specialised antigen-presenting cells that are critical initiators of adaptive immunity. Targeting antigen directly to DCs in situ is a vaccination strategy that selectively delivers antigen to receptors expressed by DC subtypes. This approach exploits specific DC subset functions of antigen uptake and presentation. Here, we review DC-targeted vaccination strategies that are designed to elicit effective cross-presentation for CD8+ T cell immunity. In particular, we focus on approaches that exploit receptors highly expressed by mouse and human cDCs equipped with superior cross-presentation capacity. These receptors include DEC205, Clec9A and XCR1. Targeting DC receptors Clec12A, Clec4A4 and mannose receptor is also reviewed. Outcomes of DC-targeted vaccination in mouse models through to human clinical trials is discussed. This is a promising new vaccination approach capable of directly targeting the cross-presentation pathway for prevention and treatment of tumours and infectious diseases.
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Affiliation(s)
- Christophe Macri
- Department of Biochemistry and Pharmacology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria 3010, Australia
| | - Devi Jenika
- Department of Biochemistry and Pharmacology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria 3010, Australia
| | - Cassandra Ouslinis
- Department of Biochemistry and Pharmacology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria 3010, Australia
| | - Justine D Mintern
- Department of Biochemistry and Pharmacology, The University of Melbourne, Bio21 Molecular Science and Biotechnology Institute, 30 Flemington Rd, Parkville, Victoria 3010, Australia.
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Sunagar R, Singh A, Kumar S. SARS-CoV-2: Immunity, Challenges with Current Vaccines, and a Novel Perspective on Mucosal Vaccines. Vaccines (Basel) 2023; 11:vaccines11040849. [PMID: 37112761 PMCID: PMC10143972 DOI: 10.3390/vaccines11040849] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/06/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023] Open
Abstract
The global rollout of COVID-19 vaccines has played a critical role in reducing pandemic spread, disease severity, hospitalizations, and deaths. However, the first-generation vaccines failed to block severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and transmission, partially due to the limited induction of mucosal immunity, leading to the continuous emergence of variants of concern (VOC) and breakthrough infections. To meet the challenges from VOC, limited durability, and lack of mucosal immune response of first-generation vaccines, novel approaches are being investigated. Herein, we have discussed the current knowledge pertaining to natural and vaccine-induced immunity, and the role of the mucosal immune response in controlling SARS-CoV2 infection. We have also presented the current status of the novel approaches aimed at eliciting both mucosal and systemic immunity. Finally, we have presented a novel adjuvant-free approach to elicit effective mucosal immunity against SARS-CoV-2, which lacks the safety concerns associated with live-attenuated vaccine platforms.
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Affiliation(s)
| | - Amit Singh
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208, USA
| | - Sudeep Kumar
- Department of Immunology and Microbial Disease, Albany Medical College, Albany, NY 12208, USA
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5
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Stoitzner P, Romani N, Rademacher C, Probst HC, Mahnke K. Antigen targeting to dendritic cells: Still a place in future immunotherapy? Eur J Immunol 2022; 52:1909-1924. [PMID: 35598160 PMCID: PMC10084009 DOI: 10.1002/eji.202149515] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 04/01/2022] [Accepted: 05/20/2022] [Indexed: 12/16/2022]
Abstract
The hallmark of DCs is their potent and outstanding capacity to activate naive resting T cells. As such, DCs are the sentinels of the immune system and instrumental for the induction of immune responses. This is one of the reasons, why DCs became the focus of immunotherapeutical strategies to fight infections, cancer, and autoimmunity. Besides the exploration of adoptive DC-therapy for which DCs are generated from monocytes or purified in large numbers from the blood, alternative approaches were developed such as antigen targeting of DCs. The idea behind this strategy is that DCs resident in patients' lymphoid organs or peripheral tissues can be directly loaded with antigens in situ. The proof of principle came from mouse models; subsequent translational studies confirmed the potential of this therapy. The first clinical trials demonstrated feasibility and the induction of T-cell immunity in patients. This review will cover: (i) the historical aspects of antigen targeting, (ii) briefly summarize the biology of DCs and the immunological functions upon which this concept rests, (iii) give an overview on attempts to target DC receptors with antibodies or (glycosylated) ligands, and finally, (iv) discuss the translation of antigen targeting into clinical therapy.
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Affiliation(s)
- Patrizia Stoitzner
- Department of Dermatology, Venereology, and Allergology, Medical University of Innsbruck, Innsbruck, Austria
| | - Nikolaus Romani
- Department of Dermatology, Venereology, and Allergology, Medical University of Innsbruck, Innsbruck, Austria
| | - Christoph Rademacher
- Department of Microbiology, Immunology and Genetics, University of Vienna, Vienna, Austria.,Institute of Immunology, University Medical Center Mainz, Mainz, Germany
| | - Hans Christian Probst
- Research Center for Immunotherapy (FZI), University Medical Center Mainz, Mainz, Germany.,Department of Pharmaceutical Sciences, University of Vienna, Vienna, Austria
| | - Karsten Mahnke
- Department of Dermatology, University Hospital Heidelberg, Heidelberg, Germany
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Bellmann L, Strandt H, Zelle‐Rieser C, Ortner D, Tripp CH, Schmid S, Rühl J, Cappellano G, Schaffenrath S, Prokopi A, Spoeck S, Seretis A, Del Frari B, Sigl S, Krapf J, Heufler C, Keler T, Münz C, Romani N, Stoitzner P. Targeted delivery of a vaccine protein to Langerhans cells in the human skin via the C-type lectin receptor Langerin. Eur J Immunol 2022; 52:1829-1841. [PMID: 34932821 PMCID: PMC9788233 DOI: 10.1002/eji.202149670] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Revised: 11/26/2021] [Indexed: 12/30/2022]
Abstract
Human skin is a preferred vaccination site as it harbors multiple dendritic cell (DC) subsets, which display distinct C-type lectin receptors (CLR) that recognize pathogens. Antigens can be delivered to CLR by antibodies or ligands to boost antigen-specific immune responses. This concept has been established in mouse models but detailed insights into the functional consequences of antigen delivery to human skin DC in situ are sparse. In this study, we cloned and produced an anti-human Langerin antibody conjugated to the EBV nuclear antigen 1 (EBNA1). We confirmed specific binding of anti-Langerin-EBNA1 to Langerhans cells (LC). This novel LC-based vaccine was then compared to an existing anti-DEC-205-EBNA1 fusion protein by loading LC in epidermal cell suspensions before coculturing them with autologous T cells. After restimulation with EBNA1-peptides, we detected elevated levels of IFN-γ- and TNF-α-positive CD4+ T cells with both vaccines. When we injected the fusion proteins intradermally into human skin explants, emigrated skin DC targeted via DEC-205-induced cytokine production by T cells, whereas the Langerin-based vaccine failed to do so. In summary, we demonstrate that antibody-targeting approaches via the skin are promising vaccination strategies, however, further optimizations of vaccines are required to induce potent immune responses.
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Affiliation(s)
- Lydia Bellmann
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Helen Strandt
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Claudia Zelle‐Rieser
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Daniela Ortner
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Christoph H. Tripp
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Sandra Schmid
- Institute of Experimental ImmunologyUniversity of ZürichZürichSwitzerland
| | - Julia Rühl
- Institute of Experimental ImmunologyUniversity of ZürichZürichSwitzerland
| | - Giuseppe Cappellano
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria,Department of Health SciencesInterdisciplinary Research Center of Autoimmune DiseasesCenter for Translational Research on Autoimmune and Allergic Disease‐CAADUniversità del Piemonte OrientaleNovaraItaly
| | - Sandra Schaffenrath
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Anastasia Prokopi
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Sarah Spoeck
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Athanasios Seretis
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria,Research Institute for Biomedical Aging ResearchUniversity of InnsbruckAustria
| | - Barbara Del Frari
- Department of PlasticReconstructive and Aesthetic SurgeryMedical University of InnsbruckInnsbruckAustria
| | - Stephan Sigl
- Department of PlasticReconstructive and Aesthetic SurgeryMedical University of InnsbruckInnsbruckAustria
| | - Johanna Krapf
- Department of PlasticReconstructive and Aesthetic SurgeryMedical University of InnsbruckInnsbruckAustria
| | - Christine Heufler
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | | | - Christian Münz
- Institute of Experimental ImmunologyUniversity of ZürichZürichSwitzerland
| | - Nikolaus Romani
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
| | - Patrizia Stoitzner
- Department of DermatologyVenereology and AllergologyMedical University of InnsbruckInnsbruckAustria
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7
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Pastor Y, Ghazzaui N, Hammoudi A, Centlivre M, Cardinaud S, Levy Y. Refining the DC-targeting vaccination for preventing emerging infectious diseases. Front Immunol 2022; 13:949779. [PMID: 36016929 PMCID: PMC9396646 DOI: 10.3389/fimmu.2022.949779] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 07/14/2022] [Indexed: 11/26/2022] Open
Abstract
The development of safe, long-term, effective vaccines is still a challenge for many infectious diseases. Thus, the search of new vaccine strategies and production platforms that allow rapidly and effectively responding against emerging or reemerging pathogens has become a priority in the last years. Targeting the antigens directly to dendritic cells (DCs) has emerged as a new approach to enhance the immune response after vaccination. This strategy is based on the fusion of the antigens of choice to monoclonal antibodies directed against specific DC surface receptors such as CD40. Since time is essential, in silico approaches are of high interest to select the most immunogenic and conserved epitopes to improve the T- and B-cells responses. The purpose of this review is to present the advances in DC vaccination, with special focus on DC targeting vaccines and epitope mapping strategies and provide a new framework for improving vaccine responses against infectious diseases.
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Affiliation(s)
- Yadira Pastor
- Vaccine Research Institute, Université Paris-Est Créteil, Institut Mondor de Recherche Biomédicale, Inserm U955, Team 16, Créteil, France
| | - Nour Ghazzaui
- Vaccine Research Institute, Université Paris-Est Créteil, Institut Mondor de Recherche Biomédicale, Inserm U955, Team 16, Créteil, France
| | - Adele Hammoudi
- Vaccine Research Institute, Université Paris-Est Créteil, Institut Mondor de Recherche Biomédicale, Inserm U955, Team 16, Créteil, France
| | - Mireille Centlivre
- Vaccine Research Institute, Université Paris-Est Créteil, Institut Mondor de Recherche Biomédicale, Inserm U955, Team 16, Créteil, France
| | - Sylvain Cardinaud
- Vaccine Research Institute, Université Paris-Est Créteil, Institut Mondor de Recherche Biomédicale, Inserm U955, Team 16, Créteil, France
| | - Yves Levy
- Vaccine Research Institute, Université Paris-Est Créteil, Institut Mondor de Recherche Biomédicale, Inserm U955, Team 16, Créteil, France
- Assistance Publique-Hôpitaux de Paris, Groupe Henri-Mondor Albert-Chenevier, Service Immunologie Clinique, Créteil, France
- *Correspondence: Yves Levy,
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8
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Design, immunogenicity, and efficacy of a pan-sarbecovirus dendritic-cell targeting vaccine. EBioMedicine 2022; 80:104062. [PMID: 35594660 PMCID: PMC9113741 DOI: 10.1016/j.ebiom.2022.104062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2022] [Revised: 04/11/2022] [Accepted: 04/29/2022] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND There is an urgent need of a new generation of vaccine that are able to enhance protection against SARS-CoV-2 and related variants of concern (VOC) and emerging coronaviruses. METHODS We identified conserved T- and B-cell epitopes from Spike (S) and Nucleocapsid (N) highly homologous to 38 sarbecoviruses, including SARS-CoV-2 VOCs, to design a protein subunit vaccine targeting antigens to Dendritic Cells (DC) via CD40 surface receptor (CD40.CoV2). FINDINGS CD40.CoV2 immunization elicited high levels of cross-neutralizing antibodies against SARS-CoV-2, VOCs, and SARS-CoV-1 in K18-hACE2 transgenic mice, associated with viral control and survival after SARS-CoV-2 challenge. A direct comparison of CD40.CoV2 with the mRNA BNT162b2 vaccine showed that the two vaccines were equally immunogenic in mice. We demonstrated the potency of CD40.CoV2 to recall in vitro human multi-epitope, functional, and cytotoxic SARS-CoV-2 S- and N-specific T-cell responses that are unaffected by VOC mutations and cross-reactive with SARS-CoV-1 and, to a lesser extent, MERS epitopes. INTERPRETATION We report the immunogenicity and antiviral efficacy of the CD40.CoV2 vaccine in a preclinical model providing a framework for a pan-sarbecovirus vaccine. FUNDINGS This work was supported by INSERM and the Investissements d'Avenir program, Vaccine Research Institute (VRI), managed by the ANR and the CARE project funded from the Innovative Medicines Initiative 2 Joint Undertaking (JU).
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9
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Masterman KA, Haigh OL, Tullett KM, Leal-Rojas IM, Walpole C, Pearson FE, Cebon J, Schmidt C, O'Brien L, Rosendahl N, Daraj G, Caminschi I, Gschweng EH, Hollis RP, Kohn DB, Lahoud MH, Radford KJ. Human CLEC9A antibodies deliver NY-ESO-1 antigen to CD141 + dendritic cells to activate naïve and memory NY-ESO-1-specific CD8 + T cells. J Immunother Cancer 2021; 8:jitc-2020-000691. [PMID: 32737142 PMCID: PMC7394304 DOI: 10.1136/jitc-2020-000691] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/19/2020] [Indexed: 12/14/2022] Open
Abstract
Background Dendritic cells (DCs) are crucial for the efficacy of cancer vaccines, but current vaccines do not harness the key cDC1 subtype required for effective CD8+ T-cell-mediated tumor immune responses. Vaccine immunogenicity could be enhanced by specific delivery of immunogenic tumor antigens to CD141+ DCs, the human cDC1 equivalent. CD141+ DCs exclusively express the C-type-lectin-like receptor CLEC9A, which is important for the regulation of CD8+ T cell responses. This study developed a new vaccine that harnesses a human anti-CLEC9A antibody to specifically deliver the immunogenic tumor antigen, NY-ESO-1 (New York esophageal squamous cell carcinoma 1), to human CD141+ DCs. The ability of the CLEC9A-NY-ESO-1 antibody to activate NY-ESO-1-specific naïve and memory CD8+ T cells was examined and compared with a vaccine comprised of a human DEC-205-NY-ESO-1 antibody that targets all human DCs. Methods Human anti-CLEC9A, anti-DEC-205 and isotype control IgG4 antibodies were genetically fused to NY-ESO-1 polypeptide. Cross-presentation to NY-ESO-1-epitope-specific CD8+ T cells and reactivity of T cell responses in patients with melanoma were assessed by interferon γ (IFNγ) production following incubation of CD141+ DCs and patient peripheral blood mononuclear cells with targeting antibodies. Humanized mice containing human DC subsets and a repertoire of naïve NY-ESO-1-specific CD8+ T cells were used to investigate naïve T cell priming. T cell effector function was measured by expression of IFNγ, MIP-1β, tumor necrosis factor and CD107a and by lysis of target tumor cells. Results CLEC9A-NY-ESO-1 antibodies (Abs) were effective at mediating delivery and cross-presentation of multiple NY-ESO-1 epitopes by CD141+ DCs for activation of NY-ESO-1-specific CD8+ T cells. When benchmarked to NY-ESO-1 conjugated to an untargeted control antibody or to anti-human DEC-205, CLEC9A-NY-ESO-1 was superior at ex vivo reactivation of NY-ESO-1-specific T cell responses in patients with melanoma. Moreover, CLEC9A-NY-ESO-1 induced priming of naïve NY-ESO-1-specific CD8+ T cells with polyclonal effector function and potent tumor killing capacity in vitro. Conclusions These data advocate human CLEC9A-NY-ESO-1 Ab as an attractive strategy for specific targeting of CD141+ DCs to enhance tumor immunogenicity in NY-ESO-1-expressing malignancies.
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Affiliation(s)
- Kelly-Anne Masterman
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Oscar L Haigh
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Kirsteen M Tullett
- Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Ingrid M Leal-Rojas
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Carina Walpole
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Frances E Pearson
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Jonathon Cebon
- Department of Hematology and Oncology, Olivia Newton John Cancer Research Institute, Heidelberg, Victoria, Australia
| | - Christopher Schmidt
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Liam O'Brien
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Nikita Rosendahl
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Ghazal Daraj
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
| | - Irina Caminschi
- Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Eric H Gschweng
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, USA
| | - Roger P Hollis
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, USA
| | - Donald B Kohn
- Department of Microbiology, Immunology and Molecular Genetics, University of California, Los Angeles, Los Angeles, California, USA
| | - Mireille H Lahoud
- Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Kristen J Radford
- Mater Research Institute, University of Queensland, Woolloongabba, Queensland, Australia
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10
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Álvarez B, Revilla C, Domínguez J, Ezquerra A. Expression of CLEC4A in porcine tissues and leukocyte populations and characterization of mRNA splice variants. Mol Immunol 2021; 132:157-164. [PMID: 33592571 DOI: 10.1016/j.molimm.2021.01.027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 01/18/2021] [Accepted: 01/23/2021] [Indexed: 10/22/2022]
Abstract
CLECs are a group of molecules of the superfamily of C-type lectin domain containing receptors. Several receptors of this group have been described in humans and mice, as well as in other species. Many of them are expressed in immune cells, and have been shown to be involved in immune response modulation. Several molecules of this family have been proposed as targets for antigen delivery, which is what drew our interest in studying them in the pig. In this species only CLEC7A (also named Dectin-1) had been studied in some detail, and we have characterized two other members, CLEC12A and CLEC12B. Another molecule of interest was CLEC4A, for which we could not find any expression studies in pigs, although up to 5 different mRNA variants had been predicted by bioinformatics analysis of the genomic sequence in databases. Here we present an analysis of the expression of CLEC4A mRNA isoforms in tissues and blood cell subsets by PCR. Cloning and sequencing of cDNA of the different isoforms allowed us to identify all 5 predicted isoforms, in addition to characterizing 5 additional isoforms expressed in alveolar macrophages, of which the form coding for a canonical CLEC4A molecule was apparently the most abundant isoform. Analysis of the sequences of the 10 cDNA cloned allowed us to determine their exon usage and to identify their potential for protein coding. Only 8 of the characterized variants contain a recognizable coding sequence. The sequences of the coded proteins show both proteins with a putative transmembrane segment, and others without this feature, as well as proteins with the complete CLEC domain or with diverse truncated forms. We also prove that most of the cDNA can drive protein expression upon transfection in the CHO cell line. We discuss the relevance that the diversity of products of the porcine CLEC4A gene may have in the regulation of the expression and function of these molecules.
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Affiliation(s)
- Belén Álvarez
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Dpto. Biotecnología, Madrid, Spain
| | - Concepción Revilla
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Dpto. Biotecnología, Madrid, Spain
| | - Javier Domínguez
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Dpto. Biotecnología, Madrid, Spain
| | - Angel Ezquerra
- Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA), Dpto. Biotecnología, Madrid, Spain.
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11
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Anselmi G, Helft J, Guermonprez P. Development and function of human dendritic cells in humanized mice models. Mol Immunol 2020; 125:151-161. [PMID: 32688117 DOI: 10.1016/j.molimm.2020.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2019] [Revised: 04/06/2020] [Accepted: 07/02/2020] [Indexed: 12/12/2022]
Abstract
Dendritic cells (DCs) are sentinel cells of the immune system arising from hematopoietic stem cells. DCs play a key role in the regulation of both adaptive and innate lymphocyte responses. As such, experimental models enabling a thorough analysis of human DCs development and function are needed. Humanized mice models (termed collectively as HIS mice, or human immune system mice models) provide unique opportunities to model human hematopoiesis and tackle the function of human immune cell types in vivo. Here, we review experimental approaches enabling to recapitulate the ontogeny of DC subsets in HIS mice and discuss studies addressing the biology of human DC subsets implementing HIS mice models.
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Affiliation(s)
- Giorgio Anselmi
- King's College London, Centre for Inflammation Biology and Cancer Immunology, The Peter Gorer Department of Immunobiology, United Kingdom
| | - Julie Helft
- PSL Research University, Institut Curie Research Center, Immunity and Cancer department, INSERM U932, Paris, France
| | - Pierre Guermonprez
- King's College London, Centre for Inflammation Biology and Cancer Immunology, The Peter Gorer Department of Immunobiology, United Kingdom; Université de Paris, Centre for Inflammation Research, CNRS ERL8252, INSERM 1149, Hopital Bichat Claude Bernard, France.
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12
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Pearson FE, Tullett KM, Leal-Rojas IM, Haigh OL, Masterman KA, Walpole C, Bridgeman JS, McLaren JE, Ladell K, Miners K, Llewellyn-Lacey S, Price DA, Tunger A, Schmitz M, Miles JJ, Lahoud MH, Radford KJ. Human CLEC9A antibodies deliver Wilms' tumor 1 (WT1) antigen to CD141 + dendritic cells to activate naïve and memory WT1-specific CD8 + T cells. Clin Transl Immunology 2020; 9:e1141. [PMID: 32547743 PMCID: PMC7292901 DOI: 10.1002/cti2.1141] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 05/04/2020] [Accepted: 05/04/2020] [Indexed: 12/11/2022] Open
Abstract
Objectives Vaccines that prime Wilms' tumor 1 (WT1)‐specific CD8+ T cells are attractive cancer immunotherapies. However, immunogenicity and clinical response rates may be enhanced by delivering WT1 to CD141+ dendritic cells (DCs). The C‐type lectin‐like receptor CLEC9A is expressed exclusively by CD141+ DCs and regulates CD8+ T‐cell responses. We developed a new vaccine comprising a human anti‐CLEC9A antibody fused to WT1 and investigated its capacity to target human CD141+ DCs and activate naïve and memory WT1‐specific CD8+ T cells. Methods WT1 was genetically fused to antibodies specific for human CLEC9A, DEC‐205 or β‐galactosidase (untargeted control). Activation of WT1‐specific CD8+ T‐cell lines following cross‐presentation by CD141+ DCs was quantified by IFNγ ELISPOT. Humanised mice reconstituted with human immune cell subsets, including a repertoire of naïve WT1‐specific CD8+ T cells, were used to investigate naïve WT1‐specific CD8+ T‐cell priming. Results The CLEC9A‐WT1 vaccine promoted cross‐presentation of WT1 epitopes to CD8+ T cells and mediated priming of naïve CD8+ T cells more effectively than the DEC‐205‐WT1 and untargeted control‐WT1 vaccines. Conclusions Delivery of WT1 to CD141+ DCs via CLEC9A stimulates CD8+ T cells more potently than either untargeted delivery or widespread delivery to all Ag‐presenting cells via DEC‐205, suggesting that cross‐presentation by CD141+ DCs is sufficient for effective CD8+ T‐cell priming in humans. The CLEC9A‐WT1 vaccine is a promising candidate immunotherapy for malignancies that express WT1.
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Affiliation(s)
- Frances E Pearson
- Cancer Immunotherapies Laboratory Mater Research Institute - The University of Queensland Translational Research Institute Woolloongabba Australia 4102 Australia
| | - Kirsteen M Tullett
- Infection and Immunity Program Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology Monash University Clayton VIC Australia
| | - Ingrid M Leal-Rojas
- Cancer Immunotherapies Laboratory Mater Research Institute - The University of Queensland Translational Research Institute Woolloongabba Australia 4102 Australia
| | - Oscar L Haigh
- Cancer Immunotherapies Laboratory Mater Research Institute - The University of Queensland Translational Research Institute Woolloongabba Australia 4102 Australia
| | - Kelly-Anne Masterman
- Cancer Immunotherapies Laboratory Mater Research Institute - The University of Queensland Translational Research Institute Woolloongabba Australia 4102 Australia
| | - Carina Walpole
- Cancer Immunotherapies Laboratory Mater Research Institute - The University of Queensland Translational Research Institute Woolloongabba Australia 4102 Australia
| | - John S Bridgeman
- Division of Infection and Immunity Cardiff University School of Medicine Cardiff UK
| | - James E McLaren
- Division of Infection and Immunity Cardiff University School of Medicine Cardiff UK
| | - Kristin Ladell
- Division of Infection and Immunity Cardiff University School of Medicine Cardiff UK
| | - Kelly Miners
- Division of Infection and Immunity Cardiff University School of Medicine Cardiff UK
| | - Sian Llewellyn-Lacey
- Division of Infection and Immunity Cardiff University School of Medicine Cardiff UK
| | - David A Price
- Division of Infection and Immunity Cardiff University School of Medicine Cardiff UK.,Systems Immunity Research Institute Cardiff University School of Medicine Cardiff UK
| | - Antje Tunger
- Institute of Immunology Faculty of Medicine Carl Gustav Carus Technische Universistät Dresden Dresden Germany
| | - Marc Schmitz
- Institute of Immunology Faculty of Medicine Carl Gustav Carus Technische Universistät Dresden Dresden Germany.,National Center for Tumor Diseases University Hospital Carl Gustav Carus Technische Universistät Dresden Dresden Germany.,German Cancer Consortium (DKTK) Dresden Germany.,German Cancer Research Center (DKFZ) Heidelberg Germany
| | - John J Miles
- Australian Institute of Health and Medical Research James Cook University Cairns QLD Australia
| | - Mireille H Lahoud
- Infection and Immunity Program Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology Monash University Clayton VIC Australia
| | - Kristen J Radford
- Cancer Immunotherapies Laboratory Mater Research Institute - The University of Queensland Translational Research Institute Woolloongabba Australia 4102 Australia
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13
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Pathogenic Role of Type I Interferons in HIV-Induced Immune Impairments in Humanized Mice. Curr HIV/AIDS Rep 2020; 16:224-229. [PMID: 31055732 DOI: 10.1007/s11904-019-00444-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
PURPOSE OF REVIEW Recent findings on the critical pathogenic role of type 1 interferons (IFN-I) in HIV-1 persistence in humanized mice suggest that inhibiting IFN-I signaling transiently will reverse HIV-induced inflammatory diseases and rescue anti-HIV immunity to control HIV-1 reservoirs. RECENT FINDINGS In both humanized mice and in monkeys, IFN-I signaling is functionally defined to play an important role in suppressing early HIV-1 and SIV infection. During persistent infection in humanized mice, however, IFN-I signaling is revealed to induce T cell depletion and impairment. Interestingly, in HIV-infected mice with effective combination antiretroviral therapy (cART), blocking IFN-I signaling reverses HIV-induced inflammation, rescues anti-HIV T cells, and reduces HIV-1 reservoirs. These findings functionally define the role of IFN-I in HIV-1 reservoir persistence and suggest that blocking IFN-I signaling will provide a novel therapeutic strategy to (i) reverse inflammation-associated diseases in HIV patients under cART, (ii) rescue host anti-HIV immunity, and (iii) reduce or control HIV-1 reservoirs.
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14
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Liu J, Zhang R, Xu ZP. Nanoparticle-Based Nanomedicines to Promote Cancer Immunotherapy: Recent Advances and Future Directions. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1900262. [PMID: 30908864 DOI: 10.1002/smll.201900262] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/21/2019] [Indexed: 05/27/2023]
Abstract
Cancer immunotherapy is a promising cancer terminator by directing the patient's own immune system in the fight against this challenging disorder. Despite the monumental therapeutic potential of several immunotherapy strategies in clinical applications, the efficacious responses of a wide range of immunotherapeutic agents are limited in virtue of their inadequate accumulation in the tumor tissue and fatal side effects. In the last decades, increasing evidences disclose that nanotechnology acts as an appealing solution to address these technical barriers via conferring rational physicochemical properties to nanomaterials. In this Review, an imperative emphasis will be drawn from the current understanding of the effect of a nanosystem's structure characteristics (e.g., size, shape, surface charge, elasticity) and its chemical modification on its transport and biodistribution behavior. Subsequently, rapid-moving advances of nanoparticle-based cancer immunotherapies are summarized from traditional vaccine strategies to recent novel approaches, including delivery of immunotherapeutics (such as whole cancer cell vaccines, immune checkpoint blockade, and immunogenic cell death) and engineered immune cells, to regulate tumor microenvironment and activate cellular immunity. The future prospects may involve in the rational combination of a few immunotherapies for more efficient cancer inhibition and elimination.
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Affiliation(s)
- Jianping Liu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Run Zhang
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
| | - Zhi Ping Xu
- Australian Institute for Bioengineering and Nanotechnology, The University of Queensland, St Lucia, QLD 4072, Australia
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15
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Ivanova II, Mihaylova NM, Manoylov IK, Makatsori D, Lolov S, Nikolova MH, Mamalaki A, Prechl J, Tchorbanov AI. Targeting of Influenza Viral Epitopes to Antigen-Presenting Cells by Genetically Engineered Chimeric Molecules in a Humanized NOD SCID Gamma Transfer Model. Hum Gene Ther 2019; 29:1056-1070. [PMID: 30191743 DOI: 10.1089/hum.2018.100] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Antiviral DNA vaccines are a novel strategy in the vaccine development field, which basically consists of the administration of expression vectors coding viral antigen sequences into the host's cells. Targeting of conserved viral epitopes by antibody fragments specific to activating cell surface co-receptor molecules on antigen-presenting cells could be an alternative approach for inducing protective immunity. It has been shown that FcγRI on human monocytes enhances antigen presentation in vivo. Various DNA constructs, encoding a Single-chain variable antibodies (scFv) from mouse anti-human FcγRI monoclonal antibody, coupled to a sequence encoding a T- and B-cell epitope-containing influenza A virus hemagglutinin inter-subunit peptide were inserted into the eukaryotic expression vector system pTriEx-3 Neo. The constructed chimeric DNA molecules were expressed by transfected Chinese hamster ovary cells and the ability of the engineered proteins to interact with FcγRI-expressing cells was confirmed by flow cytometry. The fusion protein induced a strong signal transduction on human monocytes via FcγRI. The expression vector pTriEx-3 Neo containing the described construct was used as a naked DNA vaccine and introduced directly to experimental humanized NOD SCID gamma mice with or without boosting with the expressed fusion protein. Immunization with the generated DNA chimeric molecules and prime-boost with the expressed recombinant proteins induced significant serum levels of anti-influenza immunoglobulin G antibodies and strong cytotoxic T lymphocyte activity against influenza virus-infected cells in humanized animals.
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Affiliation(s)
- Iva I Ivanova
- 1 Laboratory of Experimental Immunology, Institute of Microbiology , Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Nikolina M Mihaylova
- 1 Laboratory of Experimental Immunology, Institute of Microbiology , Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Iliyan K Manoylov
- 1 Laboratory of Experimental Immunology, Institute of Microbiology , Bulgarian Academy of Sciences, Sofia, Bulgaria
| | | | - Stefan Lolov
- 3 Institute of Biology and Immunology of Reproduction, Bulgarian Academy of Sciences, Sofia, Bulgaria
| | - Maria H Nikolova
- 4 National Reference Laboratory of Immunology, National Center of Infectious and Parasitic Diseases , Sofia, Bulgaria
| | - Avgi Mamalaki
- 2 Hellenic Pasteur Institute , Ampelokipi, Athens, Greece
| | - Jozsef Prechl
- 5 Immunology Research Group, Hungarian Academy of Sciences , Budapest, Hungary
| | - Andrey I Tchorbanov
- 1 Laboratory of Experimental Immunology, Institute of Microbiology , Bulgarian Academy of Sciences, Sofia, Bulgaria .,6 National Institute of Immunology , Sofia, Bulgaria
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16
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van Dinther D, Stolk DA, van de Ven R, van Kooyk Y, de Gruijl TD, den Haan JMM. Targeting C-type lectin receptors: a high-carbohydrate diet for dendritic cells to improve cancer vaccines. J Leukoc Biol 2017; 102:1017-1034. [PMID: 28729358 PMCID: PMC5597514 DOI: 10.1189/jlb.5mr0217-059rr] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2017] [Revised: 06/13/2017] [Accepted: 06/16/2017] [Indexed: 12/23/2022] Open
Abstract
There is a growing understanding of why certain patients do or do not respond to checkpoint inhibition therapy. This opens new opportunities to reconsider and redevelop vaccine strategies to prime an anticancer immune response. Combination of such vaccines with checkpoint inhibitors will both provide the fuel and release the brake for an efficient anticancer response. Here, we discuss vaccine strategies that use C-type lectin receptor (CLR) targeting of APCs, such as dendritic cells and macrophages. APCs are a necessity for the priming of antigen-specific cytotoxic and helper T cells. Because CLRs are natural carbohydrate-recognition receptors highly expressed by multiple subsets of APCs and involved in uptake and processing of Ags for presentation, these receptors seem particularly interesting for targeting purposes.
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Affiliation(s)
- Dieke van Dinther
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; and
| | - Dorian A Stolk
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; and
| | - Rieneke van de Ven
- Department of Medical Oncology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - Yvette van Kooyk
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; and
| | - Tanja D de Gruijl
- Department of Medical Oncology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands
| | - Joke M M den Haan
- Department of Molecular Cell Biology and Immunology, Cancer Center Amsterdam, VU University Medical Center, Amsterdam, The Netherlands; and
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