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Hamid MHBA, Cespedes PF, Jin C, Chen JL, Gileadi U, Antoun E, Liang Z, Gao F, Teague R, Manoharan N, Maldonado-Perez D, Khalid-Alham N, Cerundolo L, Ciaoca R, Hester SS, Pinto-Fernández A, Draganov SD, Vendrell I, Liu G, Yao X, Kvalvaag A, Dominey-Foy DCC, Nanayakkara C, Kanellakis N, Chen YL, Waugh C, Clark SA, Clark K, Sopp P, Rahman NM, Verrill C, Kessler BM, Ogg G, Fernandes RA, Fisher R, Peng Y, Dustin ML, Dong T. Unconventional human CD61 pairing with CD103 promotes TCR signaling and antigen-specific T cell cytotoxicity. Nat Immunol 2024; 25:834-846. [PMID: 38561495 PMCID: PMC11065694 DOI: 10.1038/s41590-024-01802-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Accepted: 02/29/2024] [Indexed: 04/04/2024]
Abstract
Cancer remains one of the leading causes of mortality worldwide, leading to increased interest in utilizing immunotherapy strategies for better cancer treatments. In the past decade, CD103+ T cells have been associated with better clinical prognosis in patients with cancer. However, the specific immune mechanisms contributing toward CD103-mediated protective immunity remain unclear. Here, we show an unexpected and transient CD61 expression, which is paired with CD103 at the synaptic microclusters of T cells. CD61 colocalization with the T cell antigen receptor further modulates downstream T cell antigen receptor signaling, improving antitumor cytotoxicity and promoting physiological control of tumor growth. Clinically, the presence of CD61+ tumor-infiltrating T lymphocytes is associated with improved clinical outcomes, mediated through enhanced effector functions and phenotype with limited evidence of cellular exhaustion. In conclusion, this study identified an unconventional and transient CD61 expression and pairing with CD103 on human immune cells, which potentiates a new target for immune-based cellular therapies.
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MESH Headings
- Animals
- Humans
- Mice
- Antigens, CD/metabolism
- Antigens, CD/immunology
- Apyrase
- Cell Line, Tumor
- Cytotoxicity, Immunologic
- Integrin alpha Chains/metabolism
- Lymphocytes, Tumor-Infiltrating/immunology
- Lymphocytes, Tumor-Infiltrating/metabolism
- Neoplasms/immunology
- Neoplasms/therapy
- Receptors, Antigen, T-Cell/metabolism
- Receptors, Antigen, T-Cell/immunology
- Signal Transduction/immunology
- T-Lymphocytes, Cytotoxic/immunology
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Affiliation(s)
- Megat H B A Hamid
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Pablo F Cespedes
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Chen Jin
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Department of Cardiothoracic Surgery, The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Ji-Li Chen
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- MRC Translational Immune Discovery Unity, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Uzi Gileadi
- MRC Translational Immune Discovery Unity, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Elie Antoun
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Centre for Human Genetics, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Zhu Liang
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Fei Gao
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Renuka Teague
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Nikita Manoharan
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - David Maldonado-Perez
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Nasullah Khalid-Alham
- Institute of Biomedical Engineering, Department of Engineering Science, University of Oxford, Oxford, UK
- Oxford National Institute of Health Research (NIHR) Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
| | - Lucia Cerundolo
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
| | - Raul Ciaoca
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Svenja S Hester
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Adán Pinto-Fernández
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Simeon D Draganov
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Iolanda Vendrell
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Guihai Liu
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Xuan Yao
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Audun Kvalvaag
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
- Department of Molecular Cell Biology, Institute of Cancer Research, Oslo University Hospital, Oslo, Norway
| | | | - Charunya Nanayakkara
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Nikolaos Kanellakis
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Oxford National Institute of Health Research (NIHR) Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
- Laboratory of Pleural and Lung Cancer Translational Research, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Oxford Centre for Respiratory Medicine, Churchill Hospital, Oxford University Hospitals, Oxford, UK
| | - Yi-Ling Chen
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- MRC Translational Immune Discovery Unity, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Craig Waugh
- Flow Cytometry Facility, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Sally-Ann Clark
- Flow Cytometry Facility, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Kevin Clark
- Flow Cytometry Facility, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Paul Sopp
- Flow Cytometry Facility, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Najib M Rahman
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Oxford National Institute of Health Research (NIHR) Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
- Laboratory of Pleural and Lung Cancer Translational Research, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Oxford Centre for Respiratory Medicine, Churchill Hospital, Oxford University Hospitals, Oxford, UK
| | - Clare Verrill
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Nuffield Department of Surgical Sciences, University of Oxford, Oxford, UK
- Oxford National Institute of Health Research (NIHR) Biomedical Research Centre, John Radcliffe Hospital, Oxford, UK
| | - Benedikt M Kessler
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Graham Ogg
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- MRC Translational Immune Discovery Unity, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Ricardo A Fernandes
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Roman Fisher
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Target Discovery Institute, Centre for Medicines Discovery, University of Oxford, Oxford, UK
| | - Yanchun Peng
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- MRC Translational Immune Discovery Unity, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Michael L Dustin
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK
| | - Tao Dong
- CAMS Oxford Institute, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
- MRC Translational Immune Discovery Unity, MRC Weatherall Institute of Molecular Medicine, Radcliffe Department of Medicine, University of Oxford, Oxford, UK.
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Wilhelm KB, Vissa A, Groves JT. Differential Roles of Kinetic On- and Off-Rates in T-Cell Receptor Signal Integration Revealed with a Modified Fab'-DNA Ligand. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.01.587588. [PMID: 38617215 PMCID: PMC11014569 DOI: 10.1101/2024.04.01.587588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/16/2024]
Abstract
Antibody-derived T-cell receptor (TCR) agonists are commonly used to activate T cells. While antibodies can trigger TCRs regardless of clonotype, they bypass native T cell signal integration mechanisms that rely on monovalent, membrane-associated, and relatively weakly-binding ligand in the context of cellular adhesion. Commonly used antibodies and their derivatives bind much more strongly than native peptide-MHC (pMHC) ligands bind their cognate TCRs. Because ligand dwell time is a critical parameter that tightly correlates with physiological function of the TCR signaling system, there is a general need, both in research and therapeutics, for universal TCR ligands with controlled kinetic binding parameters. To this end, we have introduced point mutations into recombinantly expressed α-TCRβ H57 Fab to modulate the dwell time of monovalent Fab binding to TCR. When tethered to a supported lipid bilayer via DNA complementation, these monovalent Fab'-DNA ligands activate T cells with potencies well-correlated with their TCR binding dwell time. Single-molecule tracking studies in live T cells reveal that individual binding events between Fab'-DNA ligands and TCRs elicit local signaling responses closely resembling native pMHC. The unique combination of high on- and off-rate of the H57 R97L mutant enables direct observations of cooperative interplay between ligand binding and TCR-proximal condensation of the linker for activation of T cells (LAT), which is not readily visualized with pMHC. This work provides insights into how T cells integrate kinetic information from synthetic ligands and introduces a method to develop affinity panels for polyclonal T cells, such as cells from a human patient.
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Affiliation(s)
- Kiera B Wilhelm
- Department of Chemistry, University of California-Berkeley, Berkeley, CA, 93720
| | - Anand Vissa
- Department of Chemistry, University of California-Berkeley, Berkeley, CA, 93720
| | - Jay T Groves
- Department of Chemistry, University of California-Berkeley, Berkeley, CA, 93720
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3
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Kvalvaag A, Dustin ML. Clathrin controls bidirectional communication between T cells and antigen presenting cells. Bioessays 2024; 46:e2300230. [PMID: 38412391 DOI: 10.1002/bies.202300230] [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: 11/30/2023] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/29/2024]
Abstract
In circulation, T cells are spherical with selectin enriched dynamic microvilli protruding from the surface. Following extravasation, these microvilli serve another role, continuously surveying their environment for antigen in the form of peptide-MHC (pMHC) expressed on the surface of antigen presenting cells (APCs). Upon recognition of their cognate pMHC, the microvilli are initially stabilized and then flatten into F-actin dependent microclusters as the T cell spreads over the APC. Within 1-5 min, clathrin is recruited by the ESCRT-0 component Hrs to mediate release of T cell receptor (TCR) loaded vesicles directly from the plasma membrane by clathrin and ESCRT-mediated ectocytosis (CEME). After 5-10 min, Hrs is displaced by the endocytic clathrin adaptor epsin-1 to induce clathrin-mediated trans-endocytosis (CMTE) of TCR-pMHC conjugates. Here we discuss some of the functional properties of the clathrin machinery which enables it to control these topologically opposite modes of membrane transfer at the immunological synapse, and how this might be regulated during T cell activation.
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Affiliation(s)
- Audun Kvalvaag
- Department of Molecular Cell Biology, Institute for Cancer Research, Oslo University Hospital, Oslo, Norway
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Michael L Dustin
- Kennedy Institute of Rheumatology, Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
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4
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Hou F, Guo Z, Ho MT, Hui Y, Zhao CX. Particle-Based Artificial Antigen-Presenting Cell Systems for T Cell Activation in Adoptive T Cell Therapy. ACS NANO 2024; 18:8571-8599. [PMID: 38483840 DOI: 10.1021/acsnano.3c10180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/27/2024]
Abstract
T cell-based adoptive cell therapy (ACT) has emerged as a promising treatment for various diseases, particularly cancers. Unlike other immunotherapy modalities, ACT involves directly transferring engineered T cells into patients to eradicate diseased cells; hence, it necessitates methods for effectively activating and expanding T cells in vitro. Artificial antigen-presenting cells (aAPCs) have been widely developed based on biomaterials, particularly micro- and nanoparticles, and functionalized with T cell stimulatory antibodies to closely mimic the natural T cell-APC interactions. Due to their vast clinical utility, aAPCs have been employed as an off-the-shelf technology for T cell activation in FDA-approved ACTs, and the development of aAPCs is constantly advancing with the emergence of aAPCs with more sophisticated designs and additional functionalities. Here, we review the recent advancements in particle-based aAPCs for T cell activation in ACTs. Following a brief introduction, we first describe the manufacturing processes of ACT products. Next, the design and synthetic strategies for micro- and nanoparticle-based aAPCs are discussed separately to emphasize their features, advantages, and limitations. Then, the impact of design parameters of aAPCs, such as size, shape, ligand density/mobility, and stiffness, on their functionality and biomedical performance is explored to provide deeper insights into the design concepts and principles for more efficient and safer aAPCs. The review concludes by discussing current challenges and proposing future perspectives for the development of more advanced aAPCs.
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Affiliation(s)
- Fei Hou
- School of Chemical Engineering, Faculty of Sciences, Engineering and Technology, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Zichao Guo
- School of Chemical Engineering, Faculty of Sciences, Engineering and Technology, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Minh Trang Ho
- School of Chemical Engineering, Faculty of Sciences, Engineering and Technology, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Yue Hui
- School of Chemical Engineering, Faculty of Sciences, Engineering and Technology, The University of Adelaide, Adelaide, South Australia 5005, Australia
| | - Chun-Xia Zhao
- School of Chemical Engineering, Faculty of Sciences, Engineering and Technology, The University of Adelaide, Adelaide, South Australia 5005, Australia
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5
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Wheeler MA. Interactions between immune cells recorded. Nature 2024; 627:277-279. [PMID: 38448528 PMCID: PMC10998074 DOI: 10.1038/d41586-024-00426-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/08/2024]
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6
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Sengupta K, Dillard P, Limozin L. Morphodynamics of T-lymphocytes: Scanning to spreading. Biophys J 2024:S0006-3495(24)00157-7. [PMID: 38425041 DOI: 10.1016/j.bpj.2024.02.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 01/29/2024] [Accepted: 02/26/2024] [Indexed: 03/02/2024] Open
Abstract
Binding of the T cell receptor complex to its ligand, the subsequent molecular rearrangement, and the concomitant cell-scale shape changes represent the very first steps of adaptive immune recognition. The first minutes of the interaction of T cells and antigen presenting cells have been extensively scrutinized; yet, gaps remain in our understanding of how the biophysical properties of the environment may impact the sequence of events. In particular, many pioneering experiments were done on immobilized ligands and gave major insights into the process of T cell activation, whereas later experiments have indicated that ligand mobility was of paramount importance, especially to enable the formation of T cell receptor clusters. Systematic experiments to compare and reconcile the two schools are still lacking. Furthermore, recent investigations using compliant substrates have elucidated other intriguing aspects of T cell mechanics. Here we review experiments on interaction of T cells with planar artificial antigen presenting cells to explore the impact of mechanics on adhesion and actin morphodynamics during the spreading process. We enumerate a sequence tracing first contact to final spread state that is consistent with current understanding. Finally, we interpret the presented experimental results in light of a mechanical model that captures all the different morphodynamic states.
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Affiliation(s)
- Kheya Sengupta
- Aix-Marseille Université, CNRS, CINAM, Turing Centre for Living Systems, Marseille, France.
| | - Pierre Dillard
- Aix-Marseille Université, CNRS, CINAM, Turing Centre for Living Systems, Marseille, France; Aix-Marseille Université, CNRS, INSERM, LAI, Turing Centre for Living Systems, Marseille, France
| | - Laurent Limozin
- Aix-Marseille Université, CNRS, INSERM, LAI, Turing Centre for Living Systems, Marseille, France.
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7
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Perez C, Plaza-Rojas L, Boucher JC, Nagy MZ, Kostenko E, Prajapati K, Burke B, Reyes MD, Austin AL, Zhang S, Le PT, Guevara-Patino JA. NKG2D receptor signaling shapes T cell thymic education. J Leukoc Biol 2024; 115:306-321. [PMID: 37949818 DOI: 10.1093/jleuko/qiad130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Revised: 08/11/2023] [Accepted: 09/30/2023] [Indexed: 11/12/2023] Open
Abstract
The role of natural killer group 2D (NKG2D) in peripheral T cells as a costimulatory receptor is well established. However, its contribution to T cell thymic education and functional imprint is unknown. Here, we report significant changes in development, receptor signaling, transcriptional program, and function in T cells from mice lacking NKG2D signaling. In C57BL/6 (B6) and OT-I mice, we found that NKG2D deficiency results in Vβ chain usage changes and stagnation of the double-positive stage in thymic T cell development. We found that the expression of CD5 and CD45 in thymocytes from NKG2D deficient mice were reduced, indicating a direct influence of NKG2D on the strength of T cell receptor (TCR) signaling during the developmental stage of T cells. Depicting the functional consequences of NKG2D, peripheral OT-I NKG2D-deficient cells were unresponsive to ovalbumin peptide stimulation. Paradoxically, while αCD3/CD28 agonist antibodies led to phenotypic T cell activation, their ability to produce cytokines remained severely compromised. We found that OT-I NKG2D-deficient cells activate STAT5 in response to interleukin-15 but were unable to phosphorylate ERK or S6 upon TCR engagement, underpinning a defect in TCR signaling. Finally, we showed that NKG2D is expressed in mouse and human thymic T cells at the double-negative stage, suggesting an evolutionarily conserved function during T cell development. The data presented in this study indicate that NKG2D impacts thymic T cell development at a fundamental level by reducing the TCR threshold and affecting the functional imprint of the thymic progeny. In summary, understanding the impact of NKG2D on thymic T cell development and TCR signaling contributes to our knowledge of immune system regulation, immune dysregulation, and the design of immunotherapies.
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Affiliation(s)
- Cynthia Perez
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Lourdes Plaza-Rojas
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Justin C Boucher
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Mate Z Nagy
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Elena Kostenko
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Kushal Prajapati
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Brianna Burke
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Michael Delos Reyes
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Anna L Austin
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
| | - Shubin Zhang
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
- Department of Microbiology and Immunology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - Phong T Le
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
- Department of Microbiology and Immunology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
| | - José A Guevara-Patino
- Department of Cancer Biology, Loyola University Chicago, 2160 S. First Ave, Maywood, IL 60153, United States
- Department of Immunology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL 33612, United States
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Mangelinck A, Dubuisson A, Becht E, Dromaint-Catesson S, Fasquel M, Provost N, Walas D, Darville H, Galizzi JP, Lefebvre C, Blanc V, Lombardi V. Characterization of CD4 + and CD8 + T cells responses in the mixed lymphocyte reaction by flow cytometry and single cell RNA sequencing. Front Immunol 2024; 14:1320481. [PMID: 38283342 PMCID: PMC10820991 DOI: 10.3389/fimmu.2023.1320481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 12/22/2023] [Indexed: 01/30/2024] Open
Abstract
Background The Mixed Lymphocyte Reaction (MLR) consists in the allogeneic co-culture of monocytes derived dendritic cells (MoDCs) with T cells from another donor. This in vitro assay is largely used for the assessment of immunotherapy compounds. Nevertheless, the phenotypic changes associated with lymphocyte responsiveness under MLR have never been thoroughly evaluated. Methods Here, we used multiplex cytokine and chemokine assays, multiparametric flow cytometry and single cell RNA sequencing to deeply characterize T cells activation and function in the context of CD4+- and CD8+-specific MLR kinetics. Results We showed that CD4+ and CD8+ T cells in MLR share common classical markers of response such as polyfunctionality, increased proliferation and CD25 expression but differ in their kinetics and amplitude of activation as well as their patterns of cytokines secretion and immune checkpoints expression. The analysis of immunoreactive Ki-67+CD25+ T cells identified PBK, LRR1 and MYO1G as new potential markers of MLR response. Using cell-cell communication network inference and pathway analysis on single cell RNA sequencing data, we also highlighted key components of the immunological synapse occurring between T cells and the stimulatory MoDCs together with downstream signaling pathways involved in CD4+ and CD8+ T cells activation. Conclusion These results provide a deep understanding of the kinetics of the MLR assay for CD4+ or CD8+ T cells and may allow to better characterize compounds impacting MLR and eventually identify new strategies for immunotherapy in cancer.
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9
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Lee HN, Lee SE, Inn KS, Seong J. Optical sensing and control of T cell signaling pathways. Front Physiol 2024; 14:1321996. [PMID: 38269062 PMCID: PMC10806162 DOI: 10.3389/fphys.2023.1321996] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 12/20/2023] [Indexed: 01/26/2024] Open
Abstract
T cells regulate adaptive immune responses through complex signaling pathways mediated by T cell receptor (TCR). The functional domains of the TCR are combined with specific antibodies for the development of chimeric antigen receptor (CAR) T cell therapy. In this review, we first overview current understanding on the T cell signaling pathways as well as traditional methods that have been widely used for the T cell study. These methods, however, are still limited to investigating dynamic molecular events with spatiotemporal resolutions. Therefore, genetically encoded biosensors and optogenetic tools have been developed to study dynamic T cell signaling pathways in live cells. We review these cutting-edge technologies that revealed dynamic and complex molecular mechanisms at each stage of T cell signaling pathways. They have been primarily applied to the study of dynamic molecular events in TCR signaling, and they will further aid in understanding the mechanisms of CAR activation and function. Therefore, genetically encoded biosensors and optogenetic tools offer powerful tools for enhancing our understanding of signaling mechanisms in T cells and CAR-T cells.
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Affiliation(s)
- Hae Nim Lee
- Brain Science Institute, Korea Institute of Science and Technoloy, Seoul, Republic of Korea
- Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea
| | - Seung Eun Lee
- Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea
| | - Kyung-Soo Inn
- Department of Converging Science and Technology, Kyung Hee University, Seoul, Republic of Korea
| | - Jihye Seong
- Department of Pharmacology, Seoul National University College of Medicine, Seoul, Republic of Korea
- Wide River Institute of Immunology, Seoul National University, Hongcheon, Republic of Korea
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10
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Ruiz-Navarro J, Calvo V, Izquierdo M. Extracellular vesicles and microvilli in the immune synapse. Front Immunol 2024; 14:1324557. [PMID: 38268920 PMCID: PMC10806406 DOI: 10.3389/fimmu.2023.1324557] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 12/05/2023] [Indexed: 01/26/2024] Open
Abstract
T cell receptor (TCR) binding to cognate antigen on the plasma membrane of an antigen-presenting cell (APC) triggers the immune synapse (IS) formation. The IS constitutes a dedicated contact region between different cells that comprises a signaling platform where several cues evoked by TCR and accessory molecules are integrated, ultimately leading to an effective TCR signal transmission that guarantees intercellular message communication. This eventually leads to T lymphocyte activation and the efficient execution of different T lymphocyte effector tasks, including cytotoxicity and subsequent target cell death. Recent evidence demonstrates that the transmission of information between immune cells forming synapses is produced, to a significant extent, by the generation and secretion of distinct extracellular vesicles (EV) from both the effector T lymphocyte and the APC. These EV carry biologically active molecules that transfer cues among immune cells leading to a broad range of biological responses in the recipient cells. Included among these bioactive molecules are regulatory miRNAs, pro-apoptotic molecules implicated in target cell apoptosis, or molecules triggering cell activation. In this study we deal with the different EV classes detected at the IS, placing emphasis on the most recent findings on microvilli/lamellipodium-produced EV. The signals leading to polarized secretion of EV at the synaptic cleft will be discussed, showing that the IS architecture fulfills a fundamental task during this route.
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Affiliation(s)
- Javier Ruiz-Navarro
- Department of Metabolism and Cell Signaling, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Víctor Calvo
- Departamento de Bioquímica, Facultad de Medicina, Universidad Autónoma de Madrid (UAM), Madrid, Spain
| | - Manuel Izquierdo
- Department of Metabolism and Cell Signaling, Instituto de Investigaciones Biomédicas Sols-Morreale (IIBM), Consejo Superior de Investigaciones Científicas (CSIC)-Universidad Autónoma de Madrid (UAM), Madrid, Spain
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11
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Nishi W, Wakamatsu E, Machiyama H, Matsushima R, Yoshida Y, Nishikawa T, Toyota H, Furuhata M, Nishijima H, Takeuchi A, Suzuki M, Yokosuka T. Molecular Imaging of PD-1 Unveils Unknown Characteristics of PD-1 Itself by Visualizing "PD-1 Microclusters". ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2024; 1444:197-205. [PMID: 38467981 DOI: 10.1007/978-981-99-9781-7_13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
Programmed cell death-1 (PD-1) is one of the most famous coinhibitory receptors that are expressed on effector T cells to regulate their function. The PD-1 ligands, PD-L1 and PD-L2, are expressed by various cells throughout the body at steady state and their expression was further regulated within different pathological conditions such as tumor-bearing and chronic inflammatory diseases. In recent years, immune checkpoint inhibitor (ICI) therapies with anti-PD-1 or anti-PD-L1 has become a standard treatment for various malignancies and has shown remarkable antitumor effects. Since the discovery of PD-1 in 1992, a huge number of studies have been conducted to elucidate the function of PD-1. Herein, this paper provides an overview of PD-1 biological findings and sheds some light on the current technology for molecular imaging of PD-1.
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Affiliation(s)
- Wataru Nishi
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
- Department of Immunology, Tokyo Medical University, Tokyo, Japan
| | - Ei Wakamatsu
- Department of Immunology, Tokyo Medical University, Tokyo, Japan
| | | | - Ryohei Matsushima
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
- Department of Immunology, Tokyo Medical University, Tokyo, Japan
| | - Yosuke Yoshida
- Department of Immunology, Tokyo Medical University, Tokyo, Japan
- Department of Nephrology, Tokyo Medical University, Tokyo, Japan
| | - Tetsushi Nishikawa
- Department of Immunology, Tokyo Medical University, Tokyo, Japan
- Department of Dermatology, Tokyo Medical University, Tokyo, Japan
| | - Hiroko Toyota
- Department of Immunology, Tokyo Medical University, Tokyo, Japan
| | - Masae Furuhata
- Department of Immunology, Tokyo Medical University, Tokyo, Japan
| | | | - Arata Takeuchi
- Department of Immunology, Tokyo Medical University, Tokyo, Japan
| | - Makoto Suzuki
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Tadashi Yokosuka
- Department of Immunology, Tokyo Medical University, Tokyo, Japan.
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12
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Martin-Salgado M, Ochoa-Echeverría A, Mérida I. Diacylglycerol kinases: A look into the future of immunotherapy. Adv Biol Regul 2024; 91:100999. [PMID: 37949728 DOI: 10.1016/j.jbior.2023.100999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 11/01/2023] [Indexed: 11/12/2023]
Abstract
Cancer still represents the second leading cause of death right after cardiovascular diseases. According to the World Health Organization (WHO), cancer provoked around 10 million deaths in 2020, with lung and colon tumors accounting for the deadliest forms of cancer. As tumor cells become resistant to traditional therapeutic approaches, immunotherapy has emerged as a novel strategy for tumor control. T lymphocytes are key players in immune responses against tumors. Immunosurveillance allows identification, targeting and later killing of cancerous cells. Nevertheless, tumors evolve through different strategies to evade the immune response and spread in a process called metastasis. The ineffectiveness of traditional strategies to control tumor growth and expansion has led to novel approaches considering modulation of T cell activation and effector functions. Program death receptor 1 (PD-1) and cytotoxic T-lymphocyte antigen 4 (CTLA-4) showed promising results in the early 90s and nowadays are still being exploited together with other drugs for several cancer types. Other negative regulators of T cell activation are diacylglycerol kinases (DGKs) a family of enzymes that catalyze the conversion of diacylglycerol (DAG) into phosphatidic acid (PA). In T cells, DGKα and DGKζ limit the PLCγ/Ras/ERK axis thus attenuating DAG mediated signaling and T cell effector functions. Upregulation of either of both isoforms results in impaired Ras activation and anergy induction, whereas germline knockdown mice showed enhanced antitumor properties and more effective immune responses against pathogens. Here we review the mechanisms used by DGKs to ameliorate T cell activation and how inhibition could be used to reinvigorate T cell functions in cancer context. A better knowledge of the molecular mechanisms involved upon T cell activation will help to improve current therapies with DAG promoting agents.
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Affiliation(s)
- Miguel Martin-Salgado
- Department of Immunology and Oncology. National Centre for Biotechnology. Spanish Research Council (CNB-CSIC), Spain
| | - Ane Ochoa-Echeverría
- Department of Immunology and Oncology. National Centre for Biotechnology. Spanish Research Council (CNB-CSIC), Spain
| | - Isabel Mérida
- Department of Immunology and Oncology. National Centre for Biotechnology. Spanish Research Council (CNB-CSIC), Spain.
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13
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Chen Y, Guo DZ, Zhu CL, Ren SC, Sun CY, Wang Y, Wang JF. The implication of targeting PD-1:PD-L1 pathway in treating sepsis through immunostimulatory and anti-inflammatory pathways. Front Immunol 2023; 14:1323797. [PMID: 38193090 PMCID: PMC10773890 DOI: 10.3389/fimmu.2023.1323797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Accepted: 11/29/2023] [Indexed: 01/10/2024] Open
Abstract
Sepsis currently remains a major contributor to mortality in the intensive care unit (ICU), with 48.9 million cases reported globally and a mortality rate of 22.5% in 2017, accounting for almost 20% of all-cause mortality worldwide. This highlights the urgent need to improve the understanding and treatment of this condition. Sepsis is now recognized as a dysregulation of the host immune response to infection, characterized by an excessive inflammatory response and immune paralysis. This dysregulation leads to secondary infections, multiple organ dysfunction syndrome (MODS), and ultimately death. PD-L1, a co-inhibitory molecule expressed in immune cells, has emerged as a critical factor in sepsis. Numerous studies have found a significant association between the expression of PD-1/PD-L1 and sepsis, with a particular focus on PD-L1 expressed on neutrophils recently. This review explores the role of PD-1/PD-L1 in immunostimulatory and anti-inflammatory pathways, illustrates the intricate link between PD-1/PD-L1 and sepsis, and summarizes current therapeutic approaches against PD-1/PD-L1 in the treatment and prognosis of sepsis in preclinical and clinical studies.
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Affiliation(s)
- Yu Chen
- School of Basic Medicine, Naval Medical University, Shanghai, China
| | - De-zhi Guo
- School of Basic Medicine, Naval Medical University, Shanghai, China
| | - Cheng-long Zhu
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Shi-chun Ren
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Chen-yan Sun
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Yi Wang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
| | - Jia-feng Wang
- Faculty of Anesthesiology, Changhai Hospital, Naval Medical University, Shanghai, China
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14
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Dagher OK, Posey AD. Forks in the road for CAR T and CAR NK cell cancer therapies. Nat Immunol 2023; 24:1994-2007. [PMID: 38012406 DOI: 10.1038/s41590-023-01659-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Accepted: 09/20/2023] [Indexed: 11/29/2023]
Abstract
The advent of chimeric antigen receptor (CAR) T cell therapy has resulted in unprecedented long-term clearance of relapse/refractory hematological malignancies in both pediatric and adult patients. However, severe toxicities, such as cytokine release syndrome and neurotoxicity, associated with CAR T cells affect therapeutic utility; and treatment efficacies for solid tumors are still not impressive. As a result, engineering strategies that modify other immune cell types, especially natural killer (NK) cells have arisen. Owing to both CAR-dependent and CAR-independent (innate immune-mediated) antitumor killing capacity, major histocompatibility complex-independent cytotoxicity, reduced risk of alloreactivity and lack of major CAR T cell toxicities, CAR NK cells constitute one of the promising next-generation CAR immune cells that are also amenable as 'off-the-shelf' therapeutics. In this Review, we compare CAR T and CAR NK cell therapies, with particular focus on immunological synapses, engineering strategies and challenges.
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Affiliation(s)
- Oula K Dagher
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
| | - Avery D Posey
- Department of Systems Pharmacology and Translational Therapeutics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
- Corporal Michael J. Crescenz VA Medical Center, Philadelphia, PA, USA.
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15
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Kormos J, Veres AJ, Imre L, Mátyus L, Benkő S, Szöllősi J, Jenei A. HLA DQ protein changes the cell surface distribution pattern of HLA proteins as monitored by Förster resonance energy transfer and high-resolution electron microscopy. Cytometry A 2023; 103:978-991. [PMID: 37605541 DOI: 10.1002/cyto.a.24787] [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: 02/24/2023] [Revised: 08/03/2023] [Accepted: 08/18/2023] [Indexed: 08/23/2023]
Abstract
Peptide presentation by MHC class I and MHC class II molecules plays important roles in the regulation of the immune response. One factor in these displays is the density of antigen, which must exceed a critical threshold for the effective activation of T cells. Nonrandom distribution of MHC class I and class II has already been detected at the nanometer level and at higher hierarchical levels. It is not clear how the absence and reappearance of some protein molecules can influence the nonrandom distribution. Therefore, we performed experiments on HLA II-deficient bare lymphocyte syndrome (BLS1) cells: we created a stable transfected cell line, tDQ6-BLS-1, and were able to detect the effect of the appearance of HLA-DQ6 molecules on the homo and heteroassociation of different cell surface molecules by comparing Förster resonance energy transfer (FRET) efficiency on transfected cells to that on nontransfected BLS-1 and JY human B-cell lines. Our FRET results show a decrease in homoassociation FRET between HLA I chains in HLA-DQ6-transfected tDQ6-BLS-1 cells compared with the parent BLS-1 cell line and an increase in heteroassociation FRET between HLA I and HLA II (compared with JY cells), suggesting a similar pattern of antigen presentation by the HLA-DQ6 allele. Transmission electron microscopy (TEM) revealed that both HLA class I and class II molecules formed clusters at higher hierarchical levels on the tDQ6-BLS-1 cells, and the de novo synthesized HLA DQ molecules did not intersperse with HLA class I islands. These observations could be important in understanding the fine tuning of the immune response.
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Affiliation(s)
- József Kormos
- Department of Biophysics and Cell Biology, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
| | - Adrienn J Veres
- Department of Biophysics and Cell Biology, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
| | - László Imre
- Department of Biophysics and Cell Biology, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
| | - László Mátyus
- Department of Biophysics and Cell Biology, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
| | - Szilvia Benkő
- Department of Physiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - János Szöllősi
- Department of Biophysics and Cell Biology, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
- ELKH-DE Cell Biology and Signaling Research Group (Eötvös Loránd Research Network-University of Debrecen), Faculty of Medicine, University of Debrecen, Debrecen, Hungary
| | - Attila Jenei
- Department of Biophysics and Cell Biology, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
- Department of Basic Medical Sciences, Faculty of Dentistry, University of Debrecen, Debrecen, Hungary
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16
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Liu L, Yoon CW, Yuan Z, Guo T, Qu Y, He P, Yu X, Zhu Z, Limsakul P, Wang Y. Cellular and molecular imaging of CAR-T cell-based immunotherapy. Adv Drug Deliv Rev 2023; 203:115135. [PMID: 37931847 PMCID: PMC11052581 DOI: 10.1016/j.addr.2023.115135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/18/2023] [Accepted: 11/03/2023] [Indexed: 11/08/2023]
Abstract
Chimeric Antigen Receptor T cell (CAR-T) therapy has emerged as a transformative therapeutic strategy for hematological malignancies. However, its efficacy in treating solid tumors remains limited. An in-depth and comprehensive understanding of CAR-T cell signaling pathways and the ability to track CAR-T cell biodistribution and activation in real-time within the tumor microenvironment will be instrumental in designing the next generation of CAR-T cells for solid tumor therapy. This review summarizes the signaling network and the cellular and molecular imaging tools and platforms that are utilized in CAR-T cell-based immune therapies, covering both in vitro and in vivo studies. Firstly, we provide an overview of the existing understanding of the activation and cytotoxic mechanisms of CAR-T cells, compared to the mechanism of T cell receptor (TCR) signaling pathways. We further describe the commonly employed tools for live cell imaging, coupled with recent research progress, with a focus on genetically encoded fluorescent proteins (FPs) and biosensors. We then discuss the utility of diverse in vivo imaging modalities, including fluorescence and bioluminescence imaging, Magnetic Resonance Imaging (MRI), Positron Emission Tomography (PET), and photoacoustic (PA) imaging, for noninvasive monitoring of CAR-T cell dynamics within tumor tissues, thereby providing critical insights into therapy's strengths and weaknesses. Lastly, we discuss the current challenges and future directions of CAR-T cell therapy from the imaging perspective. We foresee that a comprehensive and integrative approach to CAR-T cell imaging will enable the development of more effective treatments for solid tumors in the future.
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Affiliation(s)
- Longwei Liu
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA.
| | - Chi Woo Yoon
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Zhou Yuan
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Tianze Guo
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Yunjia Qu
- Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Peixiang He
- Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA
| | - Xi Yu
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Ziyue Zhu
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA
| | - Praopim Limsakul
- Division of Physical Science, Faculty of Science and Center of Excellence for Trace Analysis and Biosensor, Prince of Songkla University, Hat Yai, Songkhla 90110, Thailand
| | - Yingxiao Wang
- Alfred E. Mann Department of Biomedical Engineering, University of Southern California, Los Angeles, CA, 90089, USA; Department of Bioengineering, University of California San Diego, La Jolla, CA, 92093, USA.
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17
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Paillon N, Mouro V, Dogniaux S, Maurin M, Saez Pons JJ, Ferran H, Bataille L, Zucchetti AE, Hivroz C. PD-1 inhibits T cell actin remodeling at the immunological synapse independently of its signaling motifs. Sci Signal 2023; 16:eadh2456. [PMID: 38015913 DOI: 10.1126/scisignal.adh2456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Accepted: 11/08/2023] [Indexed: 11/30/2023]
Abstract
Engagement of the receptor programmed cell death molecule 1 (PD-1) by its ligands PD-L1 and PD-L2 inhibits T cell-mediated immune responses. Blocking such signaling provides the clinical effects of PD-1-targeted immunotherapy. Here, we investigated the mechanisms underlying PD-1-mediated inhibition. Because dynamic actin remodeling is crucial for T cell functions, we characterized the effects of PD-1 engagement on actin remodeling at the immunological synapse, the interface between a T cell and an antigen-presenting cell (APC) or target cell. We used microscopy to analyze the formation of immunological synapses between PD-1+ Jurkat cells or primary human CD8+ cytotoxic T cells and APCs that presented T cell-activating antibodies and were either positive or negative for PD-L1. PD-1 binding to PD-L1 inhibited T cell spreading induced by antibody-mediated activation, which was characterized by the absence of the F-actin-dense distal lamellipodial network at the immunological synapse and the Arp2/3 complex, which mediates branched actin formation. PD-1-induced inhibition of actin remodeling also prevented the characteristic deformation of T cells that contact APCs and the release of cytotoxic granules. We showed that the effects of PD-1 on actin remodeling did not require its tyrosine-based signaling motifs, which are thought to mediate the co-inhibitory effects of PD-1. Our study highlights a previously unappreciated mechanism of PD-1-mediated suppression of T cell activity, which depends on the regulation of actin cytoskeleton dynamics in a signaling motif-independent manner.
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Affiliation(s)
- Noémie Paillon
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
- Université Paris Cité, 75005 Paris, France
| | - Violette Mouro
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
- Université Paris Cité, 75005 Paris, France
| | - Stéphanie Dogniaux
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
| | - Mathieu Maurin
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
| | - Juan-José Saez Pons
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
| | - Hermine Ferran
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
- Université Paris Cité, 75005 Paris, France
| | - Laurence Bataille
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
| | - Andrés Ernesto Zucchetti
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
| | - Claire Hivroz
- Institut Curie, PSL Research University, INSERM, U932 "Integrative analysis of T cell activation" team, Paris, France
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18
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Hadjilaou A, Brandi J, Riehn M, Friese MA, Jacobs T. Pathogenetic mechanisms and treatment targets in cerebral malaria. Nat Rev Neurol 2023; 19:688-709. [PMID: 37857843 DOI: 10.1038/s41582-023-00881-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/11/2023] [Indexed: 10/21/2023]
Abstract
Malaria, the most prevalent mosquito-borne infectious disease worldwide, has accompanied humanity for millennia and remains an important public health issue despite advances in its prevention and treatment. Most infections are asymptomatic, but a small percentage of individuals with a heavy parasite burden develop severe malaria, a group of clinical syndromes attributable to organ dysfunction. Cerebral malaria is an infrequent but life-threatening complication of severe malaria that presents as an acute cerebrovascular encephalopathy characterized by unarousable coma. Despite effective antiparasite drug treatment, 20% of patients with cerebral malaria die from this disease, and many survivors of cerebral malaria have neurocognitive impairment. Thus, an important unmet clinical need is to rapidly identify people with malaria who are at risk of developing cerebral malaria and to develop preventive, adjunctive and neuroprotective treatments for cerebral malaria. This Review describes important advances in the understanding of cerebral malaria over the past two decades and discusses how these mechanistic insights could be translated into new therapies.
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Affiliation(s)
- Alexandros Hadjilaou
- Protozoen Immunologie, Bernhard-Nocht-Institut für Tropenmedizin (BNITM), Hamburg, Germany.
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany.
| | - Johannes Brandi
- Protozoen Immunologie, Bernhard-Nocht-Institut für Tropenmedizin (BNITM), Hamburg, Germany
| | - Mathias Riehn
- Protozoen Immunologie, Bernhard-Nocht-Institut für Tropenmedizin (BNITM), Hamburg, Germany
| | - Manuel A Friese
- Institut für Neuroimmunologie und Multiple Sklerose, Universitätsklinikum Hamburg-Eppendorf, Hamburg, Germany
| | - Thomas Jacobs
- Protozoen Immunologie, Bernhard-Nocht-Institut für Tropenmedizin (BNITM), Hamburg, Germany
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19
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Lu J, Veler A, Simonetti B, Raj T, Chou PH, Cross SJ, Phillips AM, Ruan X, Huynh L, Dowsey AW, Ye D, Murphy RF, Verkade P, Cullen PJ, Wülfing C. Five Inhibitory Receptors Display Distinct Vesicular Distributions in Murine T Cells. Cells 2023; 12:2558. [PMID: 37947636 PMCID: PMC10649679 DOI: 10.3390/cells12212558] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/26/2023] [Accepted: 10/30/2023] [Indexed: 11/12/2023] Open
Abstract
T cells can express multiple inhibitory receptors. Upon induction of T cell exhaustion in response to a persistent antigen, prominently in the anti-tumor immune response, many are expressed simultaneously. Key inhibitory receptors are CTLA-4, PD-1, LAG3, TIM3, and TIGIT, as investigated here. These receptors are important as central therapeutic targets in cancer immunotherapy. Inhibitory receptors are not constitutively expressed on the cell surface, but substantial fractions reside in intracellular vesicular structures. It remains unresolved to which extent the subcellular localization of different inhibitory receptors is distinct. Using quantitative imaging of subcellular distributions and plasma membrane insertion as complemented by proximity proteomics and biochemical analysis of the association of the inhibitory receptors with trafficking adaptors, the subcellular distributions of the five inhibitory receptors were discrete. The distribution of CTLA-4 was most distinct, with preferential association with lysosomal-derived vesicles and the sorting nexin 1/2/5/6 transport machinery. With a lack of evidence for the existence of specific vesicle subtypes to explain divergent inhibitory receptor distributions, we suggest that such distributions are driven by divergent trafficking through an overlapping joint set of vesicular structures. This extensive characterization of the subcellular localization of five inhibitory receptors in relation to each other lays the foundation for the molecular investigation of their trafficking and its therapeutic exploitation.
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Affiliation(s)
- Jiahe Lu
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK; (J.L.); (A.V.); (T.R.); (P.H.C.); (L.H.)
- Department of Urology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China;
| | - Alisa Veler
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK; (J.L.); (A.V.); (T.R.); (P.H.C.); (L.H.)
| | - Boris Simonetti
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK; (B.S.); (P.V.); (P.J.C.)
| | - Timsse Raj
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK; (J.L.); (A.V.); (T.R.); (P.H.C.); (L.H.)
| | - Po Han Chou
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK; (J.L.); (A.V.); (T.R.); (P.H.C.); (L.H.)
| | - Stephen J. Cross
- Wolfson Bioimaging Facility, University of Bristol, Bristol BS8 1TD, UK;
| | - Alexander M. Phillips
- Department of Electrical Engineering & Electronics and Computational Biology Facility, University of Liverpool, Liverpool L69 7ZX, UK;
| | - Xiongtao Ruan
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA; (X.R.); (R.F.M.)
| | - Lan Huynh
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK; (J.L.); (A.V.); (T.R.); (P.H.C.); (L.H.)
| | - Andrew W. Dowsey
- Bristol Veterinary School, University of Bristol, Bristol BS40 5DU, UK;
| | - Dingwei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai 200032, China;
- Shanghai Genitourinary Cancer Institute, Shanghai 200032, China
| | - Robert F. Murphy
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA; (X.R.); (R.F.M.)
- Department of Biological Sciences, Biomedical Engineering and Machine Learning, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Paul Verkade
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK; (B.S.); (P.V.); (P.J.C.)
| | - Peter J. Cullen
- School of Biochemistry, University of Bristol, Bristol BS8 1TD, UK; (B.S.); (P.V.); (P.J.C.)
| | - Christoph Wülfing
- School of Cellular and Molecular Medicine, University of Bristol, Bristol BS8 1TD, UK; (J.L.); (A.V.); (T.R.); (P.H.C.); (L.H.)
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20
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Danilkovich AV, Turobov VI, Palikov VA, Palikova YA, Shepelyakovskaya AO, Mikhaylov ES, Slashcheva GA, Shadrina TE, Shaykhutdinova ER, Rasskazova EA, Tukhovskaya EA, Khokhlova ON, Dyachenko IA, Ismailova AM, Zinchenko DV, Navolotskaya EV, Lipkin VM, Murashev AN, Udovichenko IP. C-Terminal Region of Caveolin-3 Contains a Stretch of Amino Acid Residues Capable of Diminishing Symptoms of Experimental Autoimmune Encephalomyelitis but Not Rheumatoid Arthritis Modeled in Rats. Biomedicines 2023; 11:2855. [PMID: 37893228 PMCID: PMC10603933 DOI: 10.3390/biomedicines11102855] [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: 07/27/2023] [Revised: 09/24/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
A short synthetic peptide from the C-terminal part of the caveolin-3 structure was tested for experimental autoimmune encephalomyelitis (EAE) treatment in rats. The structure-function similarity established between the novel synthetic peptide of pCav3 and the well-known immunomodulator immunocortin determined pCav3's ability to reduce EAE symptoms in Dark Agouti (DA) rats injected with pCav3 (500 µg/kg). pCav3 was found to interfere with the proliferation of lymphocytes extracted from the LNs of DA rats primed with homogenate injection, with IC50 = 0.42 μM (2.35 mcg/mL). pCav3 affected EAE in a very similar manner as immunocortin. The high degree of homology between the amino acid sequences of pCav3 and immunocortin corresponded well with the therapeutic activities of both peptides, as demonstrated on EAE. The latter peptide, possessing a homologous structure to pCav3, was also tested on EAE to explore whether there were structural restrictions between these peptides implied by the MHC-involved cell machinery. Consequently, immunocortin was further examined with a different autoimmune disease model, collagen-induced arthritis (CIA), established in Sprague-Dawley rats. CIA was established using an intentionally different genetic platform than EAE. Based on the results, it was concluded that the effectiveness of pCav3 and immunocortin peptides in EAE rat model was almost identical, but differed in the rat model of rheumatoid arthritis; thus, efficacy may be sensitive to the MHC type of animals used to establish the autoimmune disease model.
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Affiliation(s)
- Alexey V. Danilkovich
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
- Fundamental Biotechnology Department, RosBioTech University at Pushchino, 3 Prospekt Nauki, 142290 Pushchino, Russia
| | - Valery I. Turobov
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Victor A. Palikov
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Yulia A. Palikova
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Anna O. Shepelyakovskaya
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Evgeniy S. Mikhaylov
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Gulsara A. Slashcheva
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Tatiana E. Shadrina
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Elvira R. Shaykhutdinova
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Ekaterina A. Rasskazova
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Elena A. Tukhovskaya
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Oksana N. Khokhlova
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Igor A. Dyachenko
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
- Fundamental Biotechnology Department, RosBioTech University at Pushchino, 3 Prospekt Nauki, 142290 Pushchino, Russia
| | - Alina M. Ismailova
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Dmitry V. Zinchenko
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Elena V. Navolotskaya
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Valery M. Lipkin
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
| | - Arkady N. Murashev
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
- Fundamental Biotechnology Department, RosBioTech University at Pushchino, 3 Prospekt Nauki, 142290 Pushchino, Russia
| | - Igor. P. Udovichenko
- State Center for Sciences by Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences (BIBCh RAS), 6 Prospekt Nauki, 142290 Pushchino, Russia (O.N.K.); (D.V.Z.)
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21
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Ockfen E, Filali L, Pereira Fernandes D, Hoffmann C, Thomas C. Actin cytoskeleton remodeling at the cancer cell side of the immunological synapse: good, bad, or both? Front Immunol 2023; 14:1276602. [PMID: 37869010 PMCID: PMC10585106 DOI: 10.3389/fimmu.2023.1276602] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2023] [Accepted: 09/21/2023] [Indexed: 10/24/2023] Open
Abstract
Cytotoxic lymphocytes (CLs), specifically cytotoxic T lymphocytes and natural killer cells, are indispensable guardians of the immune system and orchestrate the recognition and elimination of cancer cells. Upon encountering a cancer cell, CLs establish a specialized cellular junction, known as the immunological synapse that stands as a pivotal determinant for effective cell killing. Extensive research has focused on the presynaptic side of the immunological synapse and elucidated the multiple functions of the CL actin cytoskeleton in synapse formation, organization, regulatory signaling, and lytic activity. In contrast, the postsynaptic (cancer cell) counterpart has remained relatively unexplored. Nevertheless, both indirect and direct evidence has begun to illuminate the significant and profound consequences of cytoskeletal changes within cancer cells on the outcome of the lytic immunological synapse. Here, we explore the understudied role of the cancer cell actin cytoskeleton in modulating the immune response within the immunological synapse. We shed light on the intricate interplay between actin dynamics and the evasion mechanisms employed by cancer cells, thus providing potential routes for future research and envisioning therapeutic interventions targeting the postsynaptic side of the immunological synapse in the realm of cancer immunotherapy. This review article highlights the importance of actin dynamics within the immunological synapse between cytotoxic lymphocytes and cancer cells focusing on the less-explored postsynaptic side of the synapse. It presents emerging evidence that actin dynamics in cancer cells can critically influence the outcome of cytotoxic lymphocyte interactions with cancer cells.
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Affiliation(s)
- Elena Ockfen
- Cytoskeleton and Cancer Progression, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg
- Faculty of Science, Technology and Medicine University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Liza Filali
- Cytoskeleton and Cancer Progression, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Diogo Pereira Fernandes
- Cytoskeleton and Cancer Progression, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg
- Faculty of Science, Technology and Medicine University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Céline Hoffmann
- Cytoskeleton and Cancer Progression, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg
| | - Clément Thomas
- Cytoskeleton and Cancer Progression, Department of Cancer Research, Luxembourg Institute of Health, Luxembourg, Luxembourg
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22
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Jiang J, Liu Y, Zeng Y, Fang B, Chen Y. Annihilation of Non-small Cell Lung Cancer by NKG2D CAR-T Cells Produced from T Cells from Peripheral Blood of Healthy Donors. J Interferon Cytokine Res 2023; 43:445-454. [PMID: 37819621 DOI: 10.1089/jir.2023.0043] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/13/2023] Open
Abstract
Some progress has been made in immunotherapy with chimeric antigen receptor (CAR)-T cells targeting NKG2D-NKG2DL with the purpose of eradicating solid tumors. Non-small cell lung cancer (NSCLC) has been shown to express NKG2DL. This study hence evaluated the therapeutic effect of NKG2D CAR-T cells on NSCLC. Accordingly, NKG2D CAR-T cells were obtained from diverse human autologous T cell sources. T cells from peripheral blood T lymphocytes of healthy volunteers (without NKG2D CAR insertion) were used as NT-T cells. Coculture of effector cells (CAR-T cells or NT-T cells) with target cells (NSCLC cells such as PC-9 or NCL-H460 cells) was performed at different ratios. The cytotoxicity of CAR-T cells was examined using lactate dehydrogenase assay kits. Murine xenograft assay was conducted to investigate the in vivo antitumor effect of CAR-T cells. Cytokines secreted from CAR-T cells were assessed by enzyme-linked immunosorbent assay. CAR-T cell infiltration into xenografts was observed through immunochemical assay. Based on the results, NKG2DL was highly expressed in NSCLC cells. Compared with NT-T cells, NKG2D CAR-T cells from different sources of T cells delivered stronger toxicity, and secreted more effector and memory function-related cytokines to NSCLC cells, and those from the peripheral blood of healthy donors (H-T cells) exhibited the strongest effect. Furthermore, compared with NT-T cells, H-T cells and NKG2D CAR-T cells from NSCLC patients' peripheral blood diminished tumor, improved survival, increased body weight and tumor-infiltrating capacity, and upregulated serum IFN-γ level in NOG mice. Collectively speaking, NKG2D CAR-T cells exhibit a robust effect on eradicating NSCLC in a NKG2DL-dependent manner, thus making themselves a promising therapeutic candidate for NSCLC patients.
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Affiliation(s)
- Jinhong Jiang
- The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui City, China
| | - Yonghua Liu
- The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui City, China
| | - Yuxiao Zeng
- The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui City, China
| | - Bingmu Fang
- The Sixth Affiliated Hospital of Wenzhou Medical University, Lishui City, China
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23
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Smith R. Bringing cell therapy to tumors: considerations for optimal CAR binder design. Antib Ther 2023; 6:225-239. [PMID: 37846297 PMCID: PMC10576856 DOI: 10.1093/abt/tbad019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2023] Open
Abstract
Chimeric antigen receptor (CAR)-T cells have revolutionized the immunotherapy of B-cell malignancies and are poised to expand the range of their impact across a broad range of oncology and non-oncology indications. Critical to the success of a given CAR is the choice of binding domain, as this is the key driver for specificity and plays an important role (along with the rest of the CAR structure) in determining efficacy, potency and durability of the cell therapy. While antibodies have proven to be effective sources of CAR binding domains, it has become apparent that the desired attributes for a CAR binding domain do differ from those of a recombinant antibody. This review will address key factors that need to be considered in choosing the optimal binding domain for a given CAR and how binder properties influence and are influenced by the rest of the CAR.
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Affiliation(s)
- Richard Smith
- Department of Research, Kite, a Gilead Company, 5858 Horton Street, Suite 240, Emeryville, CA 94070, USA
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24
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Xiong Y, Libby KA, Su X. The physical landscape of CAR-T synapse. Biophys J 2023:S0006-3495(23)00581-7. [PMID: 37715447 DOI: 10.1016/j.bpj.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/30/2023] [Accepted: 09/12/2023] [Indexed: 09/17/2023] Open
Abstract
Chimeric antigen receptor (CAR)-T cells form dynamic immunological synapses with their cancer cell targets. After a CAR-antigen engagement, the CAR-T synapse forms, matures, and finally disassembles, accompanied by substantial remodeling of cell surface proteins, lipids, and glycans. In this review, we provide perspectives for understanding protein distribution, membrane topology, and force transmission across the CAR-T synapse. We highlight the features of CAR-T synapses that differ from T cell receptor synapses, including the disorganized protein pattern, adjustable synapse width, diverse mechano-responding properties, and resulting signaling consequences. Through a range of examples, we illustrate how revealing the biophysical nature of the CAR-T synapse could guide the design of CAR-Ts with improved anti-tumor function.
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Affiliation(s)
- Yiwei Xiong
- Department of Cell Biology, Yale School of Medicine, New Haven, Connecticut
| | - Kendra A Libby
- Department of Cell Biology, Yale School of Medicine, New Haven, Connecticut; Department of Biology, Massachusetts Institute of Technology, Cambridge, Massachusetts; Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts
| | - Xiaolei Su
- Department of Cell Biology, Yale School of Medicine, New Haven, Connecticut; Yale Cancer Center, Yale University, New Haven, Connecticut; Yale Stem Cell Center, Yale University, New Haven, Connecticut.
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25
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Abstract
T cell activation is initiated by the recognition of specific antigenic peptides and subsequently accomplished by complex signaling cascades. These aspects have been extensively studied for decades as pivotal factors in the establishment of adaptive immunity. However, how receptors or signaling molecules are organized in the resting state prior to encountering antigens has received less attention. Recent advancements in super-resolution microscopy techniques have revealed topographically controlled pre-formed organization of key molecules involved in antigen recognition and signal transduction on microvillar projections of T cells before activation and substantial effort has been dedicated to characterizing the topological structure of resting T cells over the past decade. This review will summarize our current understanding of how key surface receptors are pre-organized on the T-cell plasma membrane and discuss the potential role of these receptors, which are preassembled prior to ligand binding in the early activation events of T cells.
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Affiliation(s)
- Yunmin Jung
- Department of Nano-Biomedical Engineering, Advanced Science Institute, Yonsei University, Seoul, Republic of Korea
- Center for Nanomedicine, Institute for Basic Science, Seoul, Republic of Korea
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26
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Worboys JD, Vowell KN, Hare RK, Ambrose AR, Bertuzzi M, Conner MA, Patel FP, Zammit WH, Gali-Moya J, Hazime KS, Jones KL, Rey C, Jonjic S, Rovis TL, Tannahill GM, Cruz De Matos GDS, Waight JD, Davis DM. TIGIT can inhibit T cell activation via ligation-induced nanoclusters, independent of CD226 co-stimulation. Nat Commun 2023; 14:5016. [PMID: 37596248 PMCID: PMC10439114 DOI: 10.1038/s41467-023-40755-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Accepted: 08/09/2023] [Indexed: 08/20/2023] Open
Abstract
TIGIT is an inhibitory receptor expressed on lymphocytes and can inhibit T cells by preventing CD226 co-stimulation through interactions in cis or through competition of shared ligands. Whether TIGIT directly delivers cell-intrinsic inhibitory signals in T cells remains unclear. Here we show, by analysing lymphocytes from matched human tumour and peripheral blood samples, that TIGIT and CD226 co-expression is rare on tumour-infiltrating lymphocytes. Using super-resolution microscopy and other techniques, we demonstrate that ligation with CD155 causes TIGIT to reorganise into dense nanoclusters, which coalesce with T cell receptor (TCR)-rich clusters at immune synapses. Functionally, this reduces cytokine secretion in a manner dependent on TIGIT's intracellular ITT-like signalling motif. Thus, we provide evidence that TIGIT directly inhibits lymphocyte activation, acting independently of CD226, requiring intracellular signalling that is proximal to the TCR. Within the subset of tumours where TIGIT-expressing cells do not commonly co-express CD226, this will likely be the dominant mechanism of action.
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Affiliation(s)
- Jonathan D Worboys
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | | | - Roseanna K Hare
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Ashley R Ambrose
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Margherita Bertuzzi
- Manchester Fungal Infection Group, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | | | | | - William H Zammit
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Judit Gali-Moya
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
- Department of Life Sciences, Sir Alexander Fleming Building, Imperial College London, South Kensington, London, UK
| | - Khodor S Hazime
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
- Department of Life Sciences, Sir Alexander Fleming Building, Imperial College London, South Kensington, London, UK
| | - Katherine L Jones
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Camille Rey
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK
| | - Stipan Jonjic
- Center for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Tihana Lenac Rovis
- Center for Proteomics, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | | | | | | | - Daniel M Davis
- Lydia Becker Institute of Immunology and Inflammation, Faculty of Biology, Medicine and Health, Manchester Academic Health Science Centre, University of Manchester, Manchester, UK.
- Department of Life Sciences, Sir Alexander Fleming Building, Imperial College London, South Kensington, London, UK.
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27
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Xu Y, Choi KH, Nagella SG, Takatori SC. Dynamic interfaces for contact-time control of colloidal interactions. SOFT MATTER 2023; 19:5692-5700. [PMID: 37409349 PMCID: PMC10699160 DOI: 10.1039/d3sm00673e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/07/2023]
Abstract
Understanding pairwise interactions between colloidal particles out of equilibrium has a profound impact on dynamical processes such as colloidal self assembly. However, traditional colloidal interactions are effectively quasi-static on colloidal timescales and cannot be modulated out of equilibrium. A mechanism to dynamically tune the interactions during colloidal contacts can provide new avenues for self assembly and material design. In this work, we develop a framework based on polymer-coated colloids and demonstrate that in-plane surface mobility and mechanical relaxation of polymers at colloidal contact interfaces enable an effective, dynamic interaction. Combining analytical theory, simulations, and optical tweezer experiments, we demonstrate precise control of dynamic pair interactions over a range of pico-Newton forces and seconds timescales. Our model helps further the general understanding of out-of-equilibrium colloidal assemblies while providing extensive design freedom via interface modulation and nonequilibrium processing.
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Affiliation(s)
- Yaxin Xu
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.
| | - Kyu Hwan Choi
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.
| | - Sachit G Nagella
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.
| | - Sho C Takatori
- Department of Chemical Engineering, University of California, Santa Barbara, Santa Barbara, CA, USA.
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28
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Lu J, Veler A, Simonetti B, Raj T, Chou PH, Cross SJ, Phillips AM, Ruan X, Huynh L, Dowsey AW, Ye D, Murphy RF, Verkade P, Cullen PJ, Wülfing C. Five inhibitory receptors display distinct vesicular distributions in T cells. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.21.550019. [PMID: 37503045 PMCID: PMC10370166 DOI: 10.1101/2023.07.21.550019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
T cells can express multiple inhibitory receptors. Upon induction of T cell exhaustion in response to persistent antigen, prominently in the anti-tumor immune response, many are expressed simultaneously. Key inhibitory receptors are CTLA-4, PD-1, LAG3, TIM3 and TIGIT, as investigated here. These receptors are important as central therapeutic targets in cancer immunotherapy. Inhibitory receptors are not constitutively expressed on the cell surface, but substantial fractions reside in intracellular vesicular structures. It remains unresolved to which extent the subcellular localization of different inhibitory receptors is distinct. Using quantitative imaging of subcellular distributions and plasma membrane insertion as complemented by proximity proteomics and a biochemical analysis of the association of the inhibitory receptors with trafficking adaptors, the subcellular distributions of the five inhibitory receptors were discrete. The distribution of CTLA-4 was most distinct with preferential association with lysosomal-derived vesicles and the sorting nexin 1/2/5/6 transport machinery. With a lack of evidence for the existence of specific vesicle subtypes to explain divergent inhibitory receptor distributions, we suggest that such distributions are driven by divergent trafficking through an overlapping joint set of vesicular structures. This extensive characterization of the subcellular localization of five inhibitory receptors in relation to each other lays the foundation for the molecular investigation of their trafficking and its therapeutic exploitation.
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Affiliation(s)
- Jiahe Lu
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
- Department of Urology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200032, P.R. China
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, P.R. China
| | - Alisa Veler
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - Boris Simonetti
- School of Biochemistry, University of Bristol, Bristol, BS8 1TD, UK
| | - Timsse Raj
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - Po Han Chou
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - Stephen J. Cross
- Wolfson BioImaging Facility, University of Bristol, Bristol, BS8 1TD, UK
| | - Alexander M. Phillips
- Department of Electrical Engineering & Electronics and Computational Biology Facility, University of Liverpool, Liverpool, L69 7ZX, UK
| | - Xiongtao Ruan
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Lan Huynh
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
| | - Andrew W. Dowsey
- Bristol Veterinary School, University of Bristol, Bristol, BS40 5DU, UK
| | - Dingwei Ye
- Department of Urology, Fudan University Shanghai Cancer Center, Fudan University, Shanghai, 200032, P.R. China
- Shanghai Genitourinary Cancer Institute, Shanghai, 200032, P.R. China
| | - Robert F. Murphy
- Computational Biology Department, School of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA
- Departments of Biological Sciences, Biomedical Engineering and Machine Learning, Carnegie Mellon University, Pittsburgh, PA 15213, USA
| | - Paul Verkade
- School of Biochemistry, University of Bristol, Bristol, BS8 1TD, UK
| | - Peter J. Cullen
- School of Biochemistry, University of Bristol, Bristol, BS8 1TD, UK
| | - Christoph Wülfing
- School of Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, UK
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29
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Liang Q, Wang L, Xu J, Lin A, Wu Y, Tao Q, Zhang B, Min H, Song S, Gao Q. A burns and COVID-19 shared stress responding gene network deciphers CD1C-CD141- DCs as the key cellular components in septic prognosis. Cell Death Discov 2023; 9:258. [PMID: 37488118 PMCID: PMC10366195 DOI: 10.1038/s41420-023-01518-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2023] [Revised: 06/15/2023] [Accepted: 06/22/2023] [Indexed: 07/26/2023] Open
Abstract
Differential body responses to various stresses, infectious or noninfectious, govern clinical outcomes ranging from asymptoma to death. However, the common molecular and cellular nature of the stress responsome across different stimuli is not described. In this study, we compared the expression behaviors between burns and COVID-19 infection by choosing the transcriptome of peripheral blood from related patients as the analytic target since the blood cells reflect the systemic landscape of immune status. To this end, we identified an immune co-stimulator (CD86)-centered network, named stress-response core (SRC), which was robustly co-expressed in burns and COVID-19. The enhancement of SRC genes (SRCs) expression indicated favorable prognosis and less severity in both conditions. An independent whole blood single-cell RNA sequencing of COVID-19 patients demonstrated that the monocyte-dendritic cell (Mono-DC) wing was the major cellular source of SRC, among which the higher expression of the SRCs in the monocyte was associated with the asymptomatic COVID-19 patients, while the quantity-restricted and function-defected CD1C-CD141-DCs were recognized as the key signature which linked to bad consequences. Specifically, the proportion of the CD1C-CD141-DCs and their SRCs expression were step-wise reduced along with worse clinic conditions while the subcluster of CD1C-CD141-DCs from the critical COVID-19 patients was characterized of IFN signaling quiescence, high mitochondrial metabolism and immune-communication inactivation. Thus, our study identified an expression-synchronized and function-focused gene network in Mono-DC population whose expression status was prognosis-related and might serve as a new target of diagnosis and therapy.
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Affiliation(s)
- Qiao Liang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, Jiangsu Province, China
| | - Lei Wang
- Department of Clinical Laboratory, Jiangsu Provincial Hospital of Integrated Chinese and Western Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, 210028, China
| | - Jing Xu
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, Jiangsu Province, China
| | - Anqi Lin
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, Jiangsu Province, China
| | - Yongzheng Wu
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, Jiangsu Province, China
| | - Qing Tao
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, Jiangsu Province, China
| | - Bin Zhang
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, Jiangsu Province, China
- Central Laboratory, Nanjing Chest Hospital, Nanjing Medical University, Nanjing, 210028, China
| | - Haiyan Min
- Central Laboratory, The Second Affiliated Hospital of Nanjing University of Chinese Medicine, Nanjing, 210028, China
| | - Shiyu Song
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, Jiangsu Province, China.
| | - Qian Gao
- Center for Translational Medicine and Jiangsu Key Laboratory of Molecular Medicine, Medical School of Nanjing University, Nanjing, 210093, Jiangsu Province, China.
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30
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Gómez-Morón Á, Requena S, Pertusa C, Lozano-Prieto M, Calzada-Fraile D, Scagnetti C, Sánchez-García I, Calero-García AA, Izquierdo M, Martín-Cófreces NB. End-binding protein 1 regulates the metabolic fate of CD4 + T lymphoblasts and Jurkat T cells and the organization of the mitochondrial network. Front Immunol 2023; 14:1197289. [PMID: 37520527 PMCID: PMC10374013 DOI: 10.3389/fimmu.2023.1197289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 06/23/2023] [Indexed: 08/01/2023] Open
Abstract
The organization of the mitochondrial network is relevant for the metabolic fate of T cells and their ability to respond to TCR stimulation. This arrangement depends on cytoskeleton dynamics in response to TCR and CD28 activation, which allows the polarization of the mitochondria through their change in shape, and their movement along the microtubules towards the immune synapse. This work focus on the role of End-binding protein 1 (EB1), a protein that regulates tubulin polymerization and has been previously identified as a regulator of intracellular transport of CD3-enriched vesicles. EB1-interferred cells showed defective intracellular organization and metabolic strength in activated T cells, pointing to a relevant connection of the cytoskeleton and metabolism in response to TCR stimulation, which leads to increased AICD. By unifying the organization of the tubulin cytoskeleton and mitochondria during CD4+ T cell activation, this work highlights the importance of this connection for critical cell asymmetry together with metabolic functions such as glycolysis, mitochondria respiration, and cell viability.
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Affiliation(s)
- Álvaro Gómez-Morón
- Immunology Service, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa (IIS-Princesa), Madrid, Spain
- Immunology, Oftalmology and Otorrinolaryngology Dept., School of Medicine, Universidad Complutense de Madrid (UCM), Madrid, Spain
| | - Silvia Requena
- Immunology Service, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa (IIS-Princesa), Madrid, Spain
| | - Clara Pertusa
- Immunology Service, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa (IIS-Princesa), Madrid, Spain
| | - Marta Lozano-Prieto
- Immunology Service, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa (IIS-Princesa), Madrid, Spain
| | - Diego Calzada-Fraile
- Vascular Pathophysiology, Laboratory of Intercellular Communication, Fundación Centro Nacional de Investigaciones Cardiovasculares-Carlos III (CNIC), Madrid, Spain
| | - Camila Scagnetti
- Immunology Service, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa (IIS-Princesa), Madrid, Spain
- Videomicroscopy Unit, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa, IIS-Princesa, Madrid, Spain
| | - Inés Sánchez-García
- Immunology Service, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa (IIS-Princesa), Madrid, Spain
| | | | - Manuel Izquierdo
- Instituto de Investigaciones Biomédicas "Alberto Sols", Consejo Superior de Investigaciones Científicas-Universidad Autónoma de Madrid (CSIC-UAM), Madrid, Spain
| | - Noa B Martín-Cófreces
- Immunology Service, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa (IIS-Princesa), Madrid, Spain
- Vascular Pathophysiology, Laboratory of Intercellular Communication, Fundación Centro Nacional de Investigaciones Cardiovasculares-Carlos III (CNIC), Madrid, Spain
- Videomicroscopy Unit, Instituto de Investigación Sanitaria del Hospital Universitario La Princesa, IIS-Princesa, Madrid, Spain
- Centro de Investigación Biomédica en Red de Enfermedades Cardiovasculares (CIBERCV), Madrid, Spain
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31
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Cui Y, Yuan T, Wang Y, Zheng D, Qin L, Li S, Jiang Z, Lin S, Guo W, Wang Z, Liang Z, Li Y, Yao Y, Liu X, Tang Q, Tu HY, Zhang XC, Tang Z, Wong N, Zhang Z, Qin D, Thiery JP, Xu K, Li P. T lymphocytes expressing the switchable chimeric Fc receptor CD64 exhibit augmented persistence and antitumor activity. Cell Rep 2023; 42:112797. [PMID: 37436890 DOI: 10.1016/j.celrep.2023.112797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 04/29/2023] [Accepted: 06/26/2023] [Indexed: 07/14/2023] Open
Abstract
Chimeric antigen receptor (CAR) T cell therapy lacks persistent efficacy with "on-target, off-tumor" toxicities for treating solid tumors. Thus, an antibody-guided switchable CAR vector, the chimeric Fc receptor CD64 (CFR64), composed of a CD64 extracellular domain, is designed. T cells expressing CFR64 exert more robust cytotoxicity against cancer cells than CFR T cells with high-affinity CD16 variant (CD16v) or CD32A as their extracellular domains. CFR64 T cells also exhibit better long-term cytotoxicity and resistance to T cell exhaustion compared with conventional CAR T cells. With trastuzumab, the immunological synapse (IS) established by CFR64 is more stable with lower intensity induction of downstream signaling than anti-HER2 CAR T cells. Moreover, CFR64 T cells exhibit fused mitochondria in response to stimulation, while CARH2 T cells contain predominantly punctate mitochondria. These results show that CFR64 T cells may serve as a controllable engineered T cell therapy with prolonged persistence and long-term antitumor activity.
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Affiliation(s)
- Yuanbin Cui
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Tingjie Yuan
- Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, the Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Guangzhou Laboratory, Guangzhou, China
| | - Ying Wang
- Blood Disease Institution, Xuzhou Medical University, Xuzhou, Jiangsu, China; Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Diwei Zheng
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Le Qin
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Shanglin Li
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Zhiwu Jiang
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Shouheng Lin
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Wenjing Guo
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Zhi Wang
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Zhaoduan Liang
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China; T-cell Immunity Optimized Cure (TIOC) Therapeutics Limited, Hangzhou, China
| | - Yi Li
- T-cell Immunity Optimized Cure (TIOC) Therapeutics Limited, Hangzhou, China
| | - Yao Yao
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Xingguo Liu
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Qiannan Tang
- Shanghai Institute of Immunology, Department of Immunology and Microbiology, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hai-Yan Tu
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Xu-Chao Zhang
- Guangdong Lung Cancer Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Zhaoyang Tang
- Guangdong Zhaotai InVivo Biomedicine Co. Ltd., Guangzhou, China
| | - Nathalie Wong
- Department of Surgery of the Faculty of Medicine, the Chinese University of Hong Kong (CUHK), Hong Kong, China
| | - Zhenfeng Zhang
- Department of Radiology, Translational Provincial Education Department Key Laboratory of Nano-Immunoregulation Tumor Microenvironment, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Dajiang Qin
- Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, the Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | | | - Kailin Xu
- Blood Disease Institution, Xuzhou Medical University, Xuzhou, Jiangsu, China; Department of Hematology, the Affiliated Hospital of Xuzhou Medical University, Xuzhou, Jiangsu, China.
| | - Peng Li
- China-New Zealand Joint Laboratory on Biomedicine and Health, State Key Laboratory of Respiratory Disease, CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China; Key Laboratory of Biological Targeting Diagnosis, Therapy and Rehabilitation of Guangdong Higher Education Institutes, the Fifth Affiliated Hospital of Guangzhou Medical University, Guangzhou, China; Department of Surgery of the Faculty of Medicine, the Chinese University of Hong Kong (CUHK), Hong Kong, China; Centre for Regenerative Medicine and Health, Hong Kong Institute of Science & Innovation, Chinese Academy of Sciences, Hong Kong SAR, China.
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32
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Park JS, Perl A. Endosome Traffic Modulates Pro-Inflammatory Signal Transduction in CD4 + T Cells-Implications for the Pathogenesis of Systemic Lupus Erythematosus. Int J Mol Sci 2023; 24:10749. [PMID: 37445926 DOI: 10.3390/ijms241310749] [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: 05/05/2023] [Revised: 06/10/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023] Open
Abstract
Endocytic recycling regulates the cell surface receptor composition of the plasma membrane. The surface expression levels of the T cell receptor (TCR), in concert with signal transducing co-receptors, regulate T cell responses, such as proliferation, differentiation, and cytokine production. Altered TCR expression contributes to pro-inflammatory skewing, which is a hallmark of autoimmune diseases, such as systemic lupus erythematosus (SLE), defined by a reduced function of regulatory T cells (Tregs) and the expansion of CD4+ helper T (Th) cells. The ensuing secretion of inflammatory cytokines, such as interferon-γ and interleukin (IL)-4, IL-17, IL-21, and IL-23, trigger autoantibody production and tissue infiltration by cells of the adaptive and innate immune system that induce organ damage. Endocytic recycling influences immunological synapse formation by CD4+ T lymphocytes, signal transduction from crosslinked surface receptors through recruitment of adaptor molecules, intracellular traffic of organelles, and the generation of metabolites to support growth, cytokine production, and epigenetic control of DNA replication and gene expression in the cell nucleus. This review will delineate checkpoints of endosome traffic that can be targeted for therapeutic interventions in autoimmune and other disease conditions.
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Affiliation(s)
- Joy S Park
- Department of Medicine, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
- Department of Biochemistry and Molecular Biology, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
| | - Andras Perl
- Department of Medicine, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
- Department of Biochemistry and Molecular Biology, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
- Department of Microbiology and Immunology, Norton College of Medicine, State University of New York, Upstate Medical University, Syracuse, NY 13210, USA
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33
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Nishi W, Wakamatsu E, Machiyama H, Matsushima R, Saito K, Yoshida Y, Nishikawa T, Takehara T, Toyota H, Furuhata M, Nishijima H, Takeuchi A, Azuma M, Suzuki M, Yokosuka T. Evaluation of therapeutic PD-1 antibodies by an advanced single-molecule imaging system detecting human PD-1 microclusters. Nat Commun 2023; 14:3157. [PMID: 37280233 DOI: 10.1038/s41467-023-38512-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 05/04/2023] [Indexed: 06/08/2023] Open
Abstract
With recent advances in immune checkpoint inhibitors (ICIs), immunotherapy has become the standard treatment for various malignant tumors. Their indications and dosages have been determined empirically, taking individually conducted clinical trials into consideration, but without a standard method to evaluate them. Here we establish an advanced imaging system to visualize human PD-1 microclusters, in which a minimal T cell receptor (TCR) signaling unit co-localizes with the inhibitory co-receptor PD-1 in vitro. In these microclusters PD-1 dephosphorylates both the TCR/CD3 complex and its downstream signaling molecules via the recruitment of a phosphatase, SHP2, upon stimulation with the ligand hPD-L1. In this system, blocking antibodies for hPD-1-hPD-L1 binding inhibits hPD-1 microcluster formation, and each therapeutic antibody (pembrolizumab, nivolumab, durvalumab and atezolizumab) is characterized by a proprietary optimal concentration and combinatorial efficiency enhancement. We propose that our imaging system could digitally evaluate PD-1-mediated T cell suppression to evaluate their clinical usefulness and to develop the most suitable combinations among ICIs or between ICIs and conventional cancer treatments.
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Grants
- PRESTO (U1114011, T.Y.) MEXT | Japan Science and Technology Agency (JST)
- KAKENHI (JP25113725, JP15H01194, JP16H06501, JP17H03600, JP19K22545, JP20H03536, T.Y.) MEXT | Japan Society for the Promotion of Science (JSPS)
- KAKENHI (JP23H02775, JP23H04790, T.Y.) MEXT | Japan Society for the Promotion of Science (JSPS)
- 4465-135, T.Y. Naito Foundation
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Affiliation(s)
- Wataru Nishi
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Ei Wakamatsu
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Hiroaki Machiyama
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Ryohei Matsushima
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Kensho Saito
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
- School of Life Sciences, Tokyo University of Pharmacy and Life Sciences, Tokyo, 192-0392, Japan
| | - Yosuke Yoshida
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
- Department of Nephrology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Tetsushi Nishikawa
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
- Department of Dermatology, Tokyo Medical University, Tokyo, 160-0023, Japan
| | - Tomohiro Takehara
- Division of Pulmonary Medicine, Department of Medicine, Keio University School of Medicine, Tokyo, 160-8582, Japan
| | - Hiroko Toyota
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Masae Furuhata
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Hitoshi Nishijima
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Arata Takeuchi
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan
| | - Miyuki Azuma
- Department of Molecular Immunology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, 113-8549, Japan
| | - Makoto Suzuki
- Department of Thoracic Surgery, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, 860-8556, Japan
| | - Tadashi Yokosuka
- Department of Immunology, Tokyo Medical University, Tokyo, 160-8402, Japan.
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34
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Stinchcombe JC, Asano Y, Kaufman CJG, Böhlig K, Peddie CJ, Collinson LM, Nadler A, Griffiths GM. Ectocytosis renders T cell receptor signaling self-limiting at the immune synapse. Science 2023; 380:818-823. [PMID: 37228189 DOI: 10.1126/science.abp8933] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 04/28/2023] [Indexed: 05/27/2023]
Abstract
Cytotoxic T lymphocytes (CTLs) kill virus-infected and cancer cells through T cell receptor (TCR) recognition. How CTLs terminate signaling and disengage to allow serial killing has remained a mystery. TCR activation triggers membrane specialization within the immune synapse, including the production of diacylglycerol (DAG), a lipid that can induce negative membrane curvature. We found that activated TCRs were shed into DAG-enriched ectosomes at the immune synapse rather than internalized through endocytosis, suggesting that DAG may contribute to the outward budding required for ectocytosis. Budding ectosomes were endocytosed directly by target cells, thereby terminating TCR signaling and simultaneously disengaging the CTL from the target cell to allow serial killing. Thus, ectocytosis renders TCR signaling self-limiting.
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Affiliation(s)
- Jane C Stinchcombe
- Cambridge Institute for Medical Research, Keith Peters Building, Cambridge CB2 0XY, UK
| | - Yukako Asano
- Cambridge Institute for Medical Research, Keith Peters Building, Cambridge CB2 0XY, UK
| | | | - Kristin Böhlig
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
| | | | | | - André Nadler
- Max Planck Institute of Molecular Cell Biology and Genetics, 01307 Dresden, Germany
| | - Gillian M Griffiths
- Cambridge Institute for Medical Research, Keith Peters Building, Cambridge CB2 0XY, UK
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35
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Sadhu L, Tsopoulidis N, Hasanuzzaman M, Laketa V, Way M, Fackler OT. ARPC5 isoforms and their regulation by calcium-calmodulin-N-WASP drive distinct Arp2/3-dependent actin remodeling events in CD4 T cells. eLife 2023; 12:e82450. [PMID: 37162507 PMCID: PMC10171864 DOI: 10.7554/elife.82450] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Accepted: 04/06/2023] [Indexed: 05/11/2023] Open
Abstract
CD4 T cell activation induces nuclear and cytoplasmic actin polymerization via the Arp2/3 complex to activate cytokine expression and strengthen T cell receptor (TCR) signaling. Actin polymerization dynamics and filament morphology differ between nucleus and cytoplasm. However, it is unclear how the Arp2/3 complex mediates distinct nuclear and cytoplasmic actin polymerization in response to a common stimulus. In humans, the ARP3, ARPC1, and ARPC5 subunits of the Arp2/3 complex exist as two different isoforms, resulting in complexes with different properties. Here, we show that the Arp2/3 subunit isoforms ARPC5 and ARPC5L play a central role in coordinating distinct actin polymerization events in CD4 T cells. While ARPC5L is heterogeneously expressed in individual CD4 T cells, it specifically drives nuclear actin polymerization upon T cell activation. In contrast, ARPC5 is evenly expressed in CD4 T cell populations and is required for cytoplasmic actin dynamics. Interestingly, nuclear actin polymerization triggered by a different stimulus, DNA replication stress, specifically requires ARPC5 but not ARPC5L. TCR signaling but not DNA replication stress induces nuclear actin polymerization via nuclear calcium-calmodulin signaling and N-WASP. Diversity in the molecular properties and individual expression patterns of ARPC5 subunit isoforms thus tailors Arp2/3-mediated actin polymerization to different physiological stimuli.
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Affiliation(s)
- Lopamudra Sadhu
- Department of Infectious Diseases, Integrative Virology, University Hospital HeidelbergHeidelbergGermany
| | - Nikolaos Tsopoulidis
- Department of Infectious Diseases, Integrative Virology, University Hospital HeidelbergHeidelbergGermany
| | - Md Hasanuzzaman
- Department of Infectious Diseases, Integrative Virology, University Hospital HeidelbergHeidelbergGermany
| | - Vibor Laketa
- Department of Infectious Diseases, Virology, University Hospital HeidelbergHeidelbergGermany
| | - Michael Way
- Cellular Signalling and Cytoskeletal Function Laboratory, The Francis Crick InstituteLondonUnited Kingdom
- Department of Infectious Disease, Imperial CollegeLondonUnited Kingdom
| | - Oliver T Fackler
- Department of Infectious Diseases, Integrative Virology, University Hospital HeidelbergHeidelbergGermany
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36
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Pombero A, Garcia-Lopez R, Martínez S. Pericyte-Glioblastoma Cell Interaction: A Key Target to Prevent Glioblastoma Progression. Cells 2023; 12:cells12091324. [PMID: 37174724 PMCID: PMC10177553 DOI: 10.3390/cells12091324] [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: 03/13/2023] [Revised: 04/25/2023] [Accepted: 05/03/2023] [Indexed: 05/15/2023] Open
Abstract
Multiple biological processes rely on direct intercellular interactions to regulate cell proliferation and migration in embryonic development and cancer processes. Tumor development and growth depends on close interactions between cancer cells and cells in the tumor microenvironment. During embryonic development, morphogenetic signals and direct cell contacts control cell proliferation, polarity, and morphogenesis. Cancer cells communicate with cells in the tumor niche through molecular signals and intercellular contacts, thereby modifying the vascular architecture and antitumor surveillance processes and consequently enabling tumor growth and survival. While looking for cell-to-cell signaling mechanisms that are common to both brain development and cancer progression, we have studied the infiltration process in glioblastoma multiforme (GBM), which is the most malignant primary brain tumor and with the worst prognosis. Cell-to-cell contacts, by means of filopodia-like structures, between GBM cells and brain pericytes (PCs) are necessary for adequate cell signaling during cancer infiltration; similarly, contacts between embryonic regions, via cytonemes, are required for embryo regionalization and development. This GBM-PC interaction provokes two important changes in the physiological function of these perivascular cells, namely, (i) vascular co-option with changes in cell contractility and vascular malformation, and (ii) changes in the PC transcriptome, modifying the microvesicles and protein secretome, which leads to the development of an immunosuppressive phenotype that promotes tumor immune tolerance. Moreover, the GTPase Cdc42 regulates cell polarity across organisms, from yeast to humans, playing a central role in GBM cell-PC interaction and maintaining vascular co-option. As such, a review of the molecular and cellular mechanisms underlying the development and maintenance of the physical interactions between cancer cells and PCs is of particular interest.
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Affiliation(s)
- Ana Pombero
- Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, Campus de San Juan, Avda. Ramón y Cajal sn, 03550 Alicante, Spain
| | - Raquel Garcia-Lopez
- Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, Campus de San Juan, Avda. Ramón y Cajal sn, 03550 Alicante, Spain
| | - Salvador Martínez
- Instituto de Neurociencias, Universidad Miguel Hernández-CSIC, Campus de San Juan, Avda. Ramón y Cajal sn, 03550 Alicante, Spain
- Centro de Investigación Biomédica en Red en Salud Mental, CIBERSAM-ISCIII, 46010 Valencia, Spain
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37
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Shi H, Shao B. LFA-1 Activation in T-Cell Migration and Immunological Synapse Formation. Cells 2023; 12:cells12081136. [PMID: 37190045 DOI: 10.3390/cells12081136] [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: 03/07/2023] [Revised: 04/02/2023] [Accepted: 04/06/2023] [Indexed: 05/17/2023] Open
Abstract
Integrin LFA-1 plays a critical role in T-cell migration and in the formation of immunological synapses. LFA-1 functions through interacting with its ligands with differing affinities: low, intermediate, and high. Most prior research has studied how LFA-1 in the high-affinity state regulates the trafficking and functions of T cells. LFA-1 is also presented in the intermediate-affinity state on T cells, however, the signaling to activate LFA-1 to the intermediate-affinity state and the role of LFA-1 in this affinity state both remain largely elusive. This review briefly summarizes the activation and roles of LFA-1 with varied ligand-binding affinities in the regulation of T-cell migration and immunological synapse formation.
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Affiliation(s)
- Huiping Shi
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
- Department of Biochemistry and Molecular Biology, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | - Bojing Shao
- Cardiovascular Biology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK 73104, USA
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38
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Marcinek A, Brauchle B, Rohrbacher L, Hänel G, Philipp N, Märkl F, Strzalkowski T, Lacher SM, Udiljak D, Spiekermann K, Theurich S, Kobold S, Kischel R, James JR, Bücklein VL, Subklewe M. CD33 BiTE ® molecule-mediated immune synapse formation and subsequent T-cell activation is determined by the expression profile of activating and inhibitory checkpoint molecules on AML cells. Cancer Immunol Immunother 2023:10.1007/s00262-023-03439-x. [PMID: 37041225 DOI: 10.1007/s00262-023-03439-x] [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: 12/18/2022] [Accepted: 03/27/2023] [Indexed: 04/13/2023]
Abstract
Bispecific T-cell engager (BiTE®) molecules recruit T cells to cancer cells through CD3ε binding, independently of T-cell receptor (TCR) specificity. Whereas physiological T-cell activation is dependent on signal 1 (TCR engagement) and signal 2 (co-stimulation), BiTE molecule-mediated T-cell activation occurs without additional co-stimulation. As co-stimulatory and inhibitory molecules modulate the strength and nature of T-cell responses, we studied the impact of the expression profile of those molecules on target cells for BiTE molecule-mediated T-cell activation in the context of acute myeloid leukemia (AML). Accordingly, we created a novel in vitro model system using murine Ba/F3 cells transduced with human CD33 ± CD86 ± PD-L1. T-cell fitness was assessed by T-cell function assays in co-cultures and immune synapse formation by applying a CD33 BiTE molecule (AMG 330). Using our cell-based model platform, we found that the expression of positive co-stimulatory molecules on target cells markedly enhanced BiTE molecule-mediated T-cell activation. The initiation and stability of the immune synapse between T cells and target cells were significantly increased through the expression of CD86 on target cells. By contrast, the co-inhibitory molecule PD-L1 impaired the stability of BiTE molecule-induced immune synapses and subsequent T-cell responses. We validated our findings in primary T-cell-AML co-cultures, demonstrating a PD-L1-mediated reduction in redirected T-cell activation. The addition of the immunomodulatory drug (IMiD) lenalidomide to co-cultures led to stabilization of immune synapses and improved subsequent T-cell responses. We conclude that target cells modulate CD33 BiTE molecule-dependent T-cell activation and hence, combinatorial strategies might contribute to enhanced efficacy.
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Affiliation(s)
- Anetta Marcinek
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Bettina Brauchle
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Lisa Rohrbacher
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Gerulf Hänel
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Nora Philipp
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Florian Märkl
- Division of Clinical Pharmacology, Department of Medicine IV; Member of the German Center for Lung Research (DZL), University Hospital, LMU, Munich, Germany
| | - Thaddäus Strzalkowski
- Division of Clinical Pharmacology, Department of Medicine IV; Member of the German Center for Lung Research (DZL), University Hospital, LMU, Munich, Germany
| | - Sonja M Lacher
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Dragica Udiljak
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Karsten Spiekermann
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Experimental Leukemia and Lymphoma Research (ELLF), Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
| | - Sebastian Theurich
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Cancer-and Immunometabolism Research Group, LMU Gene Center, Munich, Germany
| | - Sebastian Kobold
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany
- Division of Clinical Pharmacology, Department of Medicine IV; Member of the German Center for Lung Research (DZL), University Hospital, LMU, Munich, Germany
| | - Roman Kischel
- AMGEN Research Munich GmbH, Munich, Germany
- AMGEN Inc., Thousand Oaks, CA, USA
| | - John R James
- Division of Biomedical Sciences, Warwick Medical School, University of Warwick, Coventry, UK
| | - Veit L Bücklein
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany
| | - Marion Subklewe
- Department of Medicine III, University Hospital, LMU Munich, Munich, Germany.
- Laboratory for Translational Cancer Immunology, LMU Gene Center, Munich, Germany.
- German Cancer Consortium (DKTK) and German Cancer Research Center (DKFZ), Heidelberg, Germany.
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Anto NP, Muraleedharan A, Nath PR, Sun Z, Keasar C, Livneh E, Braiman A, Altman A, Kong KF, Isakov N. The Peptidyl-Prolyl cis-trans isomerase, Pin1, associates with Protein Kinase C θ via a critical Phospho-Thr-Pro motif in the V3 regulatory domain. Front Immunol 2023; 14:1126464. [PMID: 36969236 PMCID: PMC10031136 DOI: 10.3389/fimmu.2023.1126464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 02/27/2023] [Indexed: 03/11/2023] Open
Abstract
Protein kinase C-θ (PKCθ) is a member of the novel PKC subfamily known for its selective and predominant expression in T lymphocytes where it regulates essential functions required for T cell activation and proliferation. Our previous studies provided a mechanistic explanation for the recruitment of PKCθ to the center of the immunological synapse (IS) by demonstrating that a proline-rich (PR) motif within the V3 region in the regulatory domain of PKCθ is necessary and sufficient for PKCθ IS localization and function. Herein, we highlight the importance of Thr335-Pro residue in the PR motif, the phosphorylation of which is key in the activation of PKCθ and its subsequent IS localization. We demonstrate that the phospho-Thr335-Pro motif serves as a putative binding site for the peptidyl-prolyl cis-trans isomerase (PPIase), Pin1, an enzyme that specifically recognizes peptide bonds at phospho-Ser/Thr-Pro motifs. Binding assays revealed that mutagenesis of PKCθ-Thr335-to-Ala abolished the ability of PKCθ to interact with Pin1, while Thr335 replacement by a Glu phosphomimetic, restored PKCθ binding to Pin1, suggesting that Pin1-PKCθ association is contingent upon the phosphorylation of the PKCθ-Thr335-Pro motif. Similarly, the Pin1 mutant, R17A, failed to associate with PKCθ, suggesting that the integrity of the Pin1 N-terminal WW domain is a requisite for Pin1-PKCθ interaction. In silico docking studies underpinned the role of critical residues in the Pin1-WW domain and the PKCθ phospho-Thr335-Pro motif, to form a stable interaction between Pin1 and PKCθ. Furthermore, TCR crosslinking in human Jurkat T cells and C57BL/6J mouse-derived splenic T cells promoted a rapid and transient formation of Pin1-PKCθ complexes, which followed a T cell activation-dependent temporal kinetic, suggesting a role for Pin1 in PKCθ-dependent early activation events in TCR-triggered T cells. PPIases that belong to other subfamilies, i.e., cyclophilin A or FK506-binding protein, failed to associate with PKCθ, indicating the specificity of the Pin1-PKCθ association. Fluorescent cell staining and imaging analyses demonstrated that TCR/CD3 triggering promotes the colocalization of PKCθ and Pin1 at the cell membrane. Furthermore, interaction of influenza hemagglutinin peptide (HA307-319)-specific T cells with antigen-fed antigen presenting cells (APCs) led to colocalization of PKCθ and Pin1 at the center of the IS. Together, we point to an uncovered function for the Thr335-Pro motif within the PKCθ-V3 regulatory domain to serve as a priming site for its activation upon phosphorylation and highlight its tenability to serve as a regulatory site for the Pin1 cis-trans isomerase.
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Affiliation(s)
- Nikhil Ponnoor Anto
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Amitha Muraleedharan
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Pulak Ranjan Nath
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Zuoming Sun
- Department of Immunology and Theranostics, Arthur Riggs Diabetes and Metabolism Research Institute, Beckman Research Institute of the City of Hope, Duarte, CA, United States
| | - Chen Keasar
- The Department of Computer Science, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Etta Livneh
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Alex Braiman
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
| | - Amnon Altman
- Division of Cell Biology, La Jolla Institute for Immunology, San Diego, CA, United States
| | - Kok-Fai Kong
- Division of Cell Biology, La Jolla Institute for Immunology, San Diego, CA, United States
| | - Noah Isakov
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer Sheva, Israel
- *Correspondence: Noah Isakov,
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Mao M, Lin Z, Chen L, Zou Z, Zhang J, Dou Q, Wu J, Chen J, Wu M, Niu L, Fan C, Zhang Y. Modular DNA-Origami-Based Nanoarrays Enhance Cell Binding Affinity through the "Lock-and-Key" Interaction. J Am Chem Soc 2023; 145:5447-5455. [PMID: 36812464 DOI: 10.1021/jacs.2c13825] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/24/2023]
Abstract
Surface proteins of cells are generally recognized through receptor-ligand interactions (RLIs) in disease diagnosis, but their nonuniform spatial distribution and higher-order structure lead to low binding affinity. Constructing nanotopologies that match the spatial distribution of membrane proteins to improve the binding affinity remains a challenge. Inspired by the multiantigen recognition of immune synapses, we developed modular DNA-origami-based nanoarrays with multivalent aptamers. By adjusting the valency and interspacing of the aptamers, we constructed specific nanotopology to match the spatial distribution of target protein clusters and avoid potential steric hindrance. We found that the nanoarrays significantly enhanced the binding affinity of target cells and synergistically recognized low-affinity antigen-specific cells. In addition, DNA nanoarrays used for the clinical detection of circulating tumor cells successfully verified their precise recognition ability and high-affinity RLIs. Such nanoarrays will further promote the potential application of DNA materials in clinical detection and even cell membrane engineering.
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Affiliation(s)
- Miao Mao
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Zhun Lin
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Liang Chen
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Zhengyu Zou
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Jie Zhang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Quanhao Dou
- Joint Laboratory of Optofluidic Technology and Systems, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, Guangdong 510006, China
| | - Jiacheng Wu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Jinglin Chen
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
| | - Minhao Wu
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, Guangdong 510080, China
| | - Li Niu
- Center for Advanced Analytical Science, School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou, Guangdong 510006, China
| | - Chunhai Fan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Yuanqing Zhang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou, Guangdong 510006, China
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41
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Lee M, Hugonnet H, Lee MJ, Cho Y, Park Y. Optical trapping with holographically structured light for single-cell studies. BIOPHYSICS REVIEWS 2023; 4:011302. [PMID: 38505814 PMCID: PMC10903426 DOI: 10.1063/5.0111104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/25/2022] [Indexed: 03/21/2024]
Abstract
A groundbreaking work in 1970 by Arthur Ashkin paved the way for developing various optical trapping techniques. Optical tweezers have become an established method for the manipulation of biological objects, due to their noninvasiveness and precise controllability. Recent innovations are accelerating and now enable single-cell manipulation through holographic light structuring. In this review, we provide an overview of recent advances in optical tweezer techniques for studies at the individual cell level. Our review focuses on holographic optical tweezers that utilize active spatial light modulators to noninvasively manipulate live cells. The versatility of the technology has led to valuable integrations with microscopy, microfluidics, and biotechnological techniques for various single-cell studies. We aim to recapitulate the basic principles of holographic optical tweezers, highlight trends in their biophysical applications, and discuss challenges and future prospects.
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42
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Ding H, Chen Z, Ponce C, Zheng Y. Optothermal rotation of micro-/nano-objects. Chem Commun (Camb) 2023; 59:2208-2221. [PMID: 36723196 PMCID: PMC10189788 DOI: 10.1039/d2cc06955e] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 01/25/2023] [Indexed: 01/27/2023]
Abstract
Due to its contactless and fuel-free operation, optical rotation of micro-/nano-objects provides tremendous opportunities for cellular biology, three-dimensional (3D) imaging, and micro/nanorobotics. However, complex optics, extremely high operational power, and the applicability to limited objects restrict the broader use of optical rotation techniques. This Feature Article focuses on a rapidly emerging class of optical rotation techniques, termed optothermal rotation. Based on light-mediated thermal phenomena, optothermal rotation techniques overcome the bottlenecks of conventional optical rotation by enabling versatile rotary control of arbitrary objects with simpler optics using lower powers. We start with the fundamental thermal phenomena and concepts: thermophoresis, thermoelectricity, thermo-electrokinetics, thermo-osmosis, thermal convection, thermo-capillarity, and photophoresis. Then, we highlight various optothermal rotation techniques, categorizing them based on their rotation modes (i.e., in-plane and out-of-plane rotation) and the thermal phenomena involved. Next, we explore the potential applications of these optothermal manipulation techniques in areas such as single-cell mechanics, 3D bio-imaging, and micro/nanomotors. We conclude the Feature Article with our insights on the operating guidelines, existing challenges, and future directions of optothermal rotation.
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Affiliation(s)
- Hongru Ding
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Zhihan Chen
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA.
| | - Carolina Ponce
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
| | - Yuebing Zheng
- Walker Department of Mechanical Engineering, The University of Texas at Austin, Austin, TX 78712, USA
- Materials Science & Engineering Program and Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, USA.
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Kim HR, Park JS, Soh WC, Kim NY, Moon HY, Lee JS, Jun CD. T Cell Microvilli: Finger-Shaped External Structures Linked to the Fate of T Cells. Immune Netw 2023; 23:e3. [PMID: 36911802 PMCID: PMC9995986 DOI: 10.4110/in.2023.23.e3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Revised: 02/11/2023] [Accepted: 02/11/2023] [Indexed: 03/07/2023] Open
Abstract
Microvilli are outer membrane organelles that contain cross-linked filamentous actin. Unlike well-characterized epithelial microvilli, T-cell microvilli are dynamic similar to those of filopodia, which grow and shrink intermittently via the alternate actin-assembly and -disassembly. T-cell microvilli are specialized for sensing Ags on the surface of Ag-presenting cells (APCs). Thus, these finger-shaped microprotrusions contain many signaling-related proteins and can serve as a signaling platforms that induce intracellular signals. However, they are not limited to sensing external information but can provide sites for parts of the cell-body to tear away from the cell. Cells are known to produce many types of extracellular vesicles (EVs), such as exosomes, microvesicles, and membrane particles. T cells also produce EVs, but little is known about under what conditions T cells generate EVs and which types of EVs are released. We discovered that T cells produce few exosomes but release large amounsts of microvilli-derived particles during physical interaction with APCs. Although much is unanswered as to why T cells use the same organelles to sense Ags or to produce EVs, these events can significantly affect T cell fate, including clonal expansion and death. Since TCRs are localized at microvilli tips, this membrane event also raises a new question regarding long-standing paradigm in T cell biology; i.e., surface TCR downmodulation following T cell activation. Since T-cell microvilli particles carry T-cell message to their cognate partner, these particles are termed T-cell immunological synaptosomes (TISs). We discuss the potential physiological role of TISs and their application to immunotherapies.
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Affiliation(s)
- Hye-Ran Kim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- Division of Rare and Refractory Cancer, Tumor Immunology, Research Institute, National Cancer Center, Goyang 10408, Korea
| | - Jeong-Su Park
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Won-Chang Soh
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Na-Young Kim
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Hyun-Yoong Moon
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Ji-Su Lee
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
| | - Chang-Duk Jun
- School of Life Sciences, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
- Immune Synapse and Cell Therapy Research Center, Gwangju Institute of Science and Technology (GIST), Gwangju 61005, Korea
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44
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Espie D, Donnadieu E. CAR T-cell behavior and function revealed by real-time imaging. Semin Immunopathol 2023; 45:229-239. [PMID: 36688965 DOI: 10.1007/s00281-023-00983-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Accepted: 01/03/2023] [Indexed: 01/24/2023]
Abstract
Adoptive transfer of T-cells expressing chimeric antigen receptors (CAR) has shown remarkable clinical efficacy against advanced B-cell malignancies. Nonetheless, the field of CAR T-cells is currently facing several major challenges. In particular, the CAR T-cell strategy has not yet produced favorable clinical responses when targeting solid tumors. In this context, it is of paramount importance to understand the determinants that limit the efficacy of T-cell-based immunotherapy. Characterization of CAR T-cells is usually based on flow cytometry and whole-transcriptome profiling. These approaches have been very valuable to determine intrinsic elements that condition T-cell ability to proliferate and expand. However, they do not take into account spatial and kinetic aspects of T-cell responses. In particular, in order to control tumor growth, CAR T-cells need to enter into the tumor, migrate within a complex tumor environment, and form productive conjugates with their targets. Advanced imaging techniques combined with innovative preclinical models represent promising tools to uncover the dynamics of CAR T-cells. In this review, we will discuss recent results on the biology of engineered T-cells that have been obtained with real-time imaging microscopy. Important notions have emerged from these imaging-based studies, such as the multi-killing potential of CAR T-cells. Finally, we will highlight how imaging techniques combined with other tools can solve remaining unresolved questions in the field of engineered T-cells.
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Affiliation(s)
- David Espie
- Université Paris Cité, CNRS, INSERM, Equipe Labellisée Ligue Contre le Cancer, Institut Cochin, INSERM U1016, 22 rue Méchain, F-75014, Paris, France.,Invectys, Paris, France
| | - Emmanuel Donnadieu
- Université Paris Cité, CNRS, INSERM, Equipe Labellisée Ligue Contre le Cancer, Institut Cochin, INSERM U1016, 22 rue Méchain, F-75014, Paris, France.
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45
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Horvath RM, Dahabieh M, Malcolm T, Sadowski I. TRIM24 controls induction of latent HIV-1 by stimulating transcriptional elongation. Commun Biol 2023; 6:86. [PMID: 36690785 PMCID: PMC9870992 DOI: 10.1038/s42003-023-04484-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 01/15/2023] [Indexed: 01/24/2023] Open
Abstract
Binding of USF1/2 and TFII-I (RBF-2) at conserved sites flanking the HIV-1 LTR enhancer is essential for reactivation from latency in T cells, with TFII-I knockdown rendering the provirus insensitive to T cell signaling. We identified an interaction of TFII-I with the tripartite motif protein TRIM24, and these factors were found to be constitutively associated with the HIV-1 LTR. Similar to the effect of TFII-I depletion, loss of TRIM24 impaired reactivation of HIV-1 in response to T cell signaling. TRIM24 deficiency did not affect recruitment of RNA Pol II to the LTR promoter, but inhibited transcriptional elongation, an effect that was associated with decreased RNA Pol II CTD S2 phosphorylation and impaired recruitment of CDK9. A considerable number of genomic loci are co-occupied by TRIM24/TFII-I, and we found that TRIM24 deletion caused altered T cell immune response, an effect that is facilitated by TFII-I. These results demonstrate a role of TRIM24 for regulation of transcriptional elongation from the HIV-1 promoter, through its interaction with TFII-I, and by recruitment of P-TEFb. Furthermore, these factors co-regulate a significant proportion of genes involved in T cell immune response, consistent with tight coupling of HIV-1 transcriptional activation and T cell signaling.
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Affiliation(s)
- Riley M Horvath
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, Vancouver, B.C., Canada
| | - Matthew Dahabieh
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, Vancouver, B.C., Canada
| | - Tom Malcolm
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, Vancouver, B.C., Canada
| | - Ivan Sadowski
- Department of Biochemistry and Molecular Biology, Molecular Epigenetics Group, LSI, University of British Columbia, Vancouver, B.C., Canada.
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Fernández-Hermira S, Sanz-Fernández I, Botas M, Calvo V, Izquierdo M. Analysis of centrosomal area actin reorganization and centrosome polarization upon lymphocyte activation at the immunological synapse. Methods Cell Biol 2023; 173:15-32. [PMID: 36653081 DOI: 10.1016/bs.mcb.2021.11.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
T cell receptor (TCR) and B cell receptor (BCR) stimulation of T and B lymphocytes, by antigen presented on an antigen-presenting cell (APC) induces the formation of the immunological synapse (IS). IS formation is associated with an initial increase in cortical filamentous actin (F-actin) at the IS, followed by a decrease in F-actin density at the central region of the IS, which contains the secretory domain. This is followed by the convergence of secretion vesicles towards the centrosome, and the polarization of the centrosome to the IS. These reversible, cortical actin cytoskeleton reorganization processes occur during lytic granule secretion in cytotoxic T lymphocytes (CTL) and natural killer (NK) cells, proteolytic granules secretion in B lymphocytes and during cytokine-containing vesicle secretion in T-helper (Th) lymphocytes. In addition, several findings obtained in T and B lymphocytes forming IS show that actin cytoskeleton reorganization also occurs at the centrosomal area. F-actin reduction at the centrosomal area appears to be associated with centrosome polarization. In this chapter we deal with the analysis of centrosomal area F-actin reorganization, as well as the centrosome polarization analysis toward the IS.
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Affiliation(s)
| | | | - Marta Botas
- Instituto de Investigaciones Biomédicas Alberto Sols CSIC-UAM, Madrid, Spain
| | - Victor Calvo
- Departamento de Bioquímica, Instituto de Investigaciones Biomédicas Alberto Sols CSIC-UAM, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
| | - Manuel Izquierdo
- Instituto de Investigaciones Biomédicas Alberto Sols CSIC-UAM, Madrid, Spain.
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47
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Cerny O. Quantification of interaction frequency between antigen-presenting cells and T cells by conjugation assay. Methods Cell Biol 2023; 173:65-75. [PMID: 36653086 DOI: 10.1016/bs.mcb.2022.07.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Interaction between an antigen-presenting cell and a T cell, and their subsequent conjugation are a prerequisite for the formation of the immunological synapse and productive, antigen-dependent activation of T cells. This initial interaction is accompanied by recognition of the presented antigen by the T cell receptor, and by changes in the morphology of the interacting cells and in actin cytoskeleton structure in the site of interaction. The experimental protocol below describes a simple assay for quantitative assessment of antigen-presenting cells-T cell conjugation using confocal microscopy or flow cytometry.
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Affiliation(s)
- Ondrej Cerny
- Institute of Microbiology of the Czech Academy of Sciences, Prague, Czech Republic.
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48
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Gómez-Morón A, Requena S, Roda-Navarro P, Martín-Cófreces NB. Activation kinetics of regulatory molecules during immunological synapse in T cells. Methods Cell Biol 2023. [PMID: 37516524 DOI: 10.1016/bs.mcb.2022.10.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
T cell activation through TCR stimulation leads to the formation of the immunological synapse (IS), a specialized adhesion organized between T lymphocytes and antigen presenting cells (APCs) in which a dynamic interaction among signaling molecules, the cytoskeleton and intracellular organelles achieves proper antigen-mediated stimulation and effector function. The kinetics of molecular reactions at the IS is essential to determine the quality of the response to the antigen stimulation. Herein, we describe methods based on biochemistry, flow cytometry and imaging in live and fixed cells to study the activation state and dynamics of regulatory molecules at the IS in the Jurkat T cell line CH7C17 and primary human and mouse CD4+ T lymphocytes stimulated by antigen presented by Raji and HOM2 B cell lines and human and mouse dendritic cells.
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49
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Alatoom A, ElGindi M, Sapudom J, Teo JCM. The T Cell Journey: A Tour de Force. Adv Biol (Weinh) 2023; 7:e2200173. [PMID: 36190140 DOI: 10.1002/adbi.202200173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 08/30/2022] [Indexed: 11/07/2022]
Abstract
T cells act as the puppeteers in the adaptive immune response, and their dysfunction leads to the initiation and progression of pathological conditions. During their lifetime, T cells experience myriad forces that modulate their effector functions. These forces are imposed by interacting cells, surrounding tissues, and shear forces from fluid movement. In this review, a journey with T cells is made, from their development to their unique characteristics, including the early studies that uncovered their mechanosensitivity. Then the studies pertaining to the responses of T cell activation to changes in antigen-presenting cells' physical properties, to their immediate surrounding extracellular matrix microenvironment, and flow conditions are highlighted. In addition, it is explored how pathological conditions like the tumor microenvironment can hinder T cells and allow cancer cells to escape elimination.
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Affiliation(s)
- Aseel Alatoom
- Laboratory for Immuno Bioengineering Research and Applications Division of Engineering, New York University Abu Dhabi, Saadiyat Campus, P.O. Box 127788, Abu Dhabi, UAE.,Department of Mechanical Engineering Tandon School of Engineering, New York University, 6 MetroTech Center, Brooklyn, NY, 11201, USA
| | - Mei ElGindi
- Laboratory for Immuno Bioengineering Research and Applications Division of Engineering, New York University Abu Dhabi, Saadiyat Campus, P.O. Box 127788, Abu Dhabi, UAE
| | - Jiranuwat Sapudom
- Laboratory for Immuno Bioengineering Research and Applications Division of Engineering, New York University Abu Dhabi, Saadiyat Campus, P.O. Box 127788, Abu Dhabi, UAE
| | - Jeremy C M Teo
- Laboratory for Immuno Bioengineering Research and Applications Division of Engineering, New York University Abu Dhabi, Saadiyat Campus, P.O. Box 127788, Abu Dhabi, UAE.,Department of Mechanical Engineering Tandon School of Engineering, New York University, 6 MetroTech Center, Brooklyn, NY, 11201, USA.,Department of Biomedical Engineering Tandon School of Engineering, New York University, 6 MetroTech Center, Brooklyn, NY, 11201, USA
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50
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Ambrose AR, Hazime KS, Davis DM. Analyzing Single Cell Secretions by "Shadow Imaging". Methods Mol Biol 2023; 2654:409-420. [PMID: 37106197 DOI: 10.1007/978-1-0716-3135-5_26] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Abstract
Here, we describe a method, which we term "shadow imaging," to analyze the secretions of individual cells at immune synapses or other cell contacts. Following immune synapse formation and cellular activation on ligand-rich slides, the position of each cell is recorded using a pulsed immunofluorescence stain against the proteins on the ligand-rich slide surface. The pulsed stain does not penetrate the synaptic cleft, resulting in an unlabeled region or "shadow" beneath cells that is retained following cellular detachment. The secreted components, such as perforin, exosomes, or other types of extracellular vesicles, are retained on the slide and can be analyzed on a single-cell basis using immunofluorescence. The ability to identify single cells secreting different combinations of particles, proteins, and vesicles enables us to better understand the heterogeneity in immune cell secretions and can be used as a novel approach for phenotyping cell populations.
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Affiliation(s)
- Ashley R Ambrose
- The Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK
| | - Khodor S Hazime
- The Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK
- Department of Life Sciences, Imperial College London, London, UK
| | - Daniel M Davis
- The Lydia Becker Institute of Immunology and Inflammation, University of Manchester, Manchester, UK.
- Department of Life Sciences, Imperial College London, London, UK.
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