1
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Wang P, Chen L, Mora-Cartin R, McIntosh CM, Sattar H, Chong AS, Alegre ML. Low-affinity CD8 + T cells provide interclonal help to high-affinity CD8 + T cells to augment alloimmunity. Am J Transplant 2024; 24:933-943. [PMID: 38228228 PMCID: PMC11144556 DOI: 10.1016/j.ajt.2024.01.008] [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: 08/22/2023] [Revised: 12/19/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024]
Abstract
Following solid organ transplantation, small precursor populations of polyclonal CD8+ T cells specific for any graft-expressed antigen preferentially expand their high-affinity clones. This phenomenon, termed "avidity maturation," results in a larger population of CD8+ T cells with increased sensitivity to alloantigen, posing a greater risk for graft rejection. Using a mouse model of minor-mismatched skin transplantation, coupled with the tracking of 2 skin graft-reactive CD8+ T cell receptor-transgenic tracer populations with high and low affinity for the same peptide-major histocompatibility complex, we explored the conventional paradigm that CD8+ T cell avidity maturation occurs through T cell receptor affinity-based competition for cognate antigen. Our data revealed "interclonal CD8-CD8 help," whereby lower/intermediate affinity clones help drive the preferential expansion of their higher affinity counterparts in an interleukin-2/CD25-dependent manner. Consequently, the CD8-helped high-affinity clones exhibit greater expansion and develop augmented effector functions in the presence of their low-affinity counterparts, correlating with more severe graft damage. Finally, interclonal CD8-CD8 help was suppressed by costimulation blockade treatment. Thus, high-affinity CD8+ T cells can leverage help from low-affinity CD8+ T cells of identical specificity to promote graft rejection. Suppressing provision of interclonal CD8-CD8 help may be important to improve transplant outcomes.
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Affiliation(s)
- Peter Wang
- Section of Rheumatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA; Medical Scientist Training Program, University of Chicago Pritzker School of Medicine, Chicago, Illinois, USA
| | - Luqiu Chen
- Section of Rheumatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Ricardo Mora-Cartin
- Section of Rheumatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Christine M McIntosh
- Section of Rheumatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA
| | - Husain Sattar
- Department of Pathology, University of Chicago, Chicago, Illinois, USA
| | - Anita S Chong
- Department of Surgery, Section of Transplantation, University of Chicago, Chicago, Illinois, USA
| | - Maria-Luisa Alegre
- Section of Rheumatology, Department of Medicine, University of Chicago, Chicago, Illinois, USA.
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2
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Petkau G, Mitchell TJ, Evans MJ, Matheson L, Salerno F, Turner M. Zfp36l1 establishes the high-affinity CD8 T-cell response by directly linking TCR affinity to cytokine sensing. Eur J Immunol 2024; 54:e2350700. [PMID: 38039407 PMCID: PMC11146077 DOI: 10.1002/eji.202350700] [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: 08/03/2023] [Revised: 11/29/2023] [Accepted: 11/30/2023] [Indexed: 12/03/2023]
Abstract
How individual T cells compete for and respond to IL-2 at the molecular level, and, as a consequence, how this shapes population dynamics and the selection of high-affinity clones is still poorly understood. Here we describe how the RNA binding protein ZFP36L1, acts as a sensor of TCR affinity to promote clonal expansion of high-affinity CD8 T cells. As part of an incoherent feed-forward loop, ZFP36L1 has a nonredundant role in suppressing multiple negative regulators of cytokine signaling and mediating a selection mechanism based on competition for IL-2. We suggest that ZFP36L1 acts as a sensor of antigen affinity and establishes the dominance of high-affinity T cells by installing a hierarchical response to IL-2.
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Affiliation(s)
- Georg Petkau
- The Babraham InstituteBabraham Research CampusCambridgeUnited Kingdom
| | - Twm J. Mitchell
- The Babraham InstituteBabraham Research CampusCambridgeUnited Kingdom
| | | | - Louise Matheson
- The Babraham InstituteBabraham Research CampusCambridgeUnited Kingdom
| | - Fiamma Salerno
- The Babraham InstituteBabraham Research CampusCambridgeUnited Kingdom
| | - Martin Turner
- The Babraham InstituteBabraham Research CampusCambridgeUnited Kingdom
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3
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Chu GJ, Bailey CG, Nagarajah R, Sagnella SM, Adelstein S, Rasko JEJ. The 4-1BBζ costimulatory domain in chimeric antigen receptors enhances CD8+ T-cell functionality following T-cell receptor stimulation. Cancer Cell Int 2023; 23:327. [PMID: 38105188 PMCID: PMC10726568 DOI: 10.1186/s12935-023-03171-7] [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: 09/05/2023] [Accepted: 12/01/2023] [Indexed: 12/19/2023] Open
Abstract
BACKGROUND Chimeric antigen receptor (CAR) T-cells have revolutionized the treatment of CD19- and B-cell maturation antigen-positive haematological malignancies. However, the effect of a CAR construct on the function of T-cells stimulated via their endogenous T-cell receptors (TCRs) has yet to be comprehensively investigated. METHODS Experiments were performed to systematically assess TCR signalling and function in CAR T-cells using anti-mesothelin human CAR T-cells as a model system. CAR T-cells expressing the CD28 or 4-1BB costimulatory endodomains were manufactured and compared to both untransduced T-cells and CAR T-cells with a non-functional endodomain. These cell products were treated with staphylococcal enterotoxin B to stimulate the TCR, and in vitro functional assays were performed by flow cytometry. RESULTS Increased proliferation, CD69 expression and IFNγ production were identified in CD8+ 4-1BBζ CAR T-cells compared to control untransduced CD8+ T-cells. These functional differences were associated with higher levels of phosphorylated ZAP70 after stimulation. In addition, these functional differences were associated with a differing immunophenotype, with a more than two-fold increase in central memory cells in CD8+ 4-1BBζ CAR T-cell products. CONCLUSION Our data indicate that the 4-1BBζ CAR enhances CD8+ TCR-mediated function. This could be beneficial if the TCR targets epitopes on malignant tissues or infectious agents, but detrimental if the TCR targets autoantigens.
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Affiliation(s)
- Gerard J Chu
- Gene and Stem Cell Therapy Program Centenary Institute, Camperdown, NSW, Australia
- Department of Clinical Immunology and Allergy, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Charles G Bailey
- Gene and Stem Cell Therapy Program Centenary Institute, Camperdown, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Cancer & Gene Regulation Laboratory Centenary Institute, Camperdown, NSW, Australia
| | - Rajini Nagarajah
- Gene and Stem Cell Therapy Program Centenary Institute, Camperdown, NSW, Australia
| | - Sharon M Sagnella
- Cell & Molecular Therapies, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
| | - Stephen Adelstein
- Department of Clinical Immunology and Allergy, Royal Prince Alfred Hospital, Camperdown, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - John E J Rasko
- Gene and Stem Cell Therapy Program Centenary Institute, Camperdown, NSW, Australia.
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia.
- Cell & Molecular Therapies, Royal Prince Alfred Hospital, Camperdown, NSW, Australia.
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4
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McDonald B, Chick BY, Hargreaves DC, Kaech SM. Early Chromatin Remodeling Events in Acutely Stimulated CD8 + T Cells. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2023; 96:467-473. [PMID: 38161581 PMCID: PMC10751865 DOI: 10.59249/axgu7370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/03/2024]
Abstract
T cells undergo extensive chromatin remodeling over several days following stimulation through the T cell receptor. However, the kinetics and gene loci targeted by early remodeling events within the first 24 hours of T cell priming to orchestrate effector differentiation have not been well described. We identified that chromatin accessibility is rapidly and extensively remodeled within 1 hour of stimulation of naïve CD8+ T cells, leading to increased global chromatin accessibility at many effector T cell-associated genes that are enriched for AP-1, early growth response (EGR), and nuclear factor of activated T cells (NFAT) binding sites, but this short duration of stimulation is insufficient for commitment to clonal expansion in vivo. Sustained 24-hour stimulation led to further chromatin remodeling and was sufficient to enable clonal expansion. These data suggest that the duration of antigen receptor signaling is intimately coupled to chromatin remodeling and activation of genes involved in effector cell differentiation and highlight a potential mechanism that helps CD8+ T cells discriminate between foreign- and self-antigens.
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Affiliation(s)
- Bryan McDonald
- NOMIS Center for Immunobiology and Microbial
Pathogenesis, Salk Institute for Biological Studies, La Jolla, CA, USA
- Biomedical Sciences Graduate Program, University of
California San Diego, La Jolla, CA, USA
| | - Brent Y. Chick
- Molecular and Cell Biology Laboratory, Salk Institute
for Biological Studies, La Jolla, CA, USA
- Biological Sciences Graduate Program, University of
California at San Diego, La Jolla, California, USA
| | - Diana C. Hargreaves
- Molecular and Cell Biology Laboratory, Salk Institute
for Biological Studies, La Jolla, CA, USA
| | - Susan M. Kaech
- NOMIS Center for Immunobiology and Microbial
Pathogenesis, Salk Institute for Biological Studies, La Jolla, CA, USA
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5
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Gräbnitz F, Oxenius A. CD8 T-cell diversification: Asymmetric cell division and its functional implications. Eur J Immunol 2023; 53:e2250225. [PMID: 36788705 DOI: 10.1002/eji.202250225] [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: 11/11/2022] [Revised: 02/10/2023] [Accepted: 02/10/2023] [Indexed: 02/16/2023]
Abstract
Establishment of cellular diversity is a basic requirement for the development of multicellular organisms. Cellular diversification can be induced by asymmetric cell division (ACD), during which the emerging two daughter cells unequally inherit lineage specific cargo (including transcription factors, receptors for specific signaling inputs, metabolic platforms, and possibly different epigenetic landscapes), resulting in two daughter cells endowed with different fates. While ACD is strongly involved in lineage choices in mammalian stem cells, its role in fate diversification in lineage committed cell subsets that still exhibit plastic potential, such as T-cells, is currently investigated. In this review, we focus predominantly on the role of ACD in fate diversification of CD8 T-cells. Further, we discuss the impact of differential T-cell receptor stimulation strengths and differentiation history on ACD-mediated fate diversification and highlight a particular importance of ACD in the development of memory CD8 T-cells upon high-affinity stimulation conditions.
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Affiliation(s)
- Fabienne Gräbnitz
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, Zurich, 8093, Switzerland
| | - Annette Oxenius
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, Zurich, 8093, Switzerland
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6
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Zhang B, Upadhyay R, Hao Y, Samanovic MI, Herati RS, Blair JD, Axelrad J, Mulligan MJ, Littman DR, Satija R. Multimodal single-cell datasets characterize antigen-specific CD8 + T cells across SARS-CoV-2 vaccination and infection. Nat Immunol 2023; 24:1725-1734. [PMID: 37735591 PMCID: PMC10522491 DOI: 10.1038/s41590-023-01608-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 07/31/2023] [Indexed: 09/23/2023]
Abstract
The immune response to SARS-CoV-2 antigen after infection or vaccination is defined by the durable production of antibodies and T cells. Population-based monitoring typically focuses on antibody titer, but there is a need for improved characterization and quantification of T cell responses. Here, we used multimodal sequencing technologies to perform a longitudinal analysis of circulating human leukocytes collected before and after immunization with the mRNA vaccine BNT162b2. Our data indicated distinct subpopulations of CD8+ T cells, which reliably appeared 28 days after prime vaccination. Using a suite of cross-modality integration tools, we defined their transcriptome, accessible chromatin landscape and immunophenotype, and we identified unique biomarkers within each modality. We further showed that this vaccine-induced population was SARS-CoV-2 antigen-specific and capable of rapid clonal expansion. Moreover, we identified these CD8+ T cell populations in scRNA-seq datasets from COVID-19 patients and found that their relative frequency and differentiation outcomes were predictive of subsequent clinical outcomes.
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Affiliation(s)
- Bingjie Zhang
- New York Genome Center, New York, NY, USA
- Center for Genomics and Systems Biology, New York University, New York, NY, USA
- Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
| | - Rabi Upadhyay
- Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA
- Perlmutter Cancer Center, New York University Langone Health, New York, NY, USA
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Yuhan Hao
- New York Genome Center, New York, NY, USA
- Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Marie I Samanovic
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
- New York University Langone Vaccine Center, New York, NY, USA
| | - Ramin S Herati
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
- New York University Langone Vaccine Center, New York, NY, USA
| | - John D Blair
- New York Genome Center, New York, NY, USA
- Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Jordan Axelrad
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Mark J Mulligan
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
- New York University Langone Vaccine Center, New York, NY, USA
| | - Dan R Littman
- Department of Cell Biology, New York University Grossman School of Medicine, New York, NY, USA.
- Perlmutter Cancer Center, New York University Langone Health, New York, NY, USA.
- Howard Hughes Medical Institute, New York, NY, USA.
| | - Rahul Satija
- New York Genome Center, New York, NY, USA.
- Center for Genomics and Systems Biology, New York University, New York, NY, USA.
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7
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Gräbnitz F, Stark D, Shlesinger D, Petkidis A, Borsa M, Yermanos A, Carr A, Barandun N, Wehling A, Balaz M, Schroeder T, Oxenius A. Asymmetric cell division safeguards memory CD8 T cell development. Cell Rep 2023; 42:112468. [PMID: 37178119 DOI: 10.1016/j.celrep.2023.112468] [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: 01/11/2023] [Revised: 03/20/2023] [Accepted: 04/18/2023] [Indexed: 05/15/2023] Open
Abstract
The strength of T cell receptor (TCR) stimulation and asymmetric distribution of fate determinants are both implied to affect T cell differentiation. Here, we uncover asymmetric cell division (ACD) as a safeguard mechanism for memory CD8 T cell generation specifically upon strong TCR stimulation. Using live imaging approaches, we find that strong TCR stimulation induces elevated ACD rates, and subsequent single-cell-derived colonies comprise both effector and memory precursor cells. The abundance of memory precursor cells emerging from a single activated T cell positively correlates with first mitosis ACD. Accordingly, preventing ACD by inhibition of protein kinase Cζ (PKCζ) during the first mitosis upon strong TCR stimulation markedly curtails the formation of memory precursor cells. Conversely, no effect of ACD on fate commitment is observed upon weak TCR stimulation. Our data provide relevant mechanistic insights into the role of ACD for CD8 T cell fate regulation upon different activation conditions.
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Affiliation(s)
- Fabienne Gräbnitz
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Dominique Stark
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Danielle Shlesinger
- Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Anthony Petkidis
- Department of Molecular Life Sciences, University of Zurich, Winterthurerstrasse 190, 8057 Zurich, Switzerland
| | - Mariana Borsa
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland; The Kennedy Institute of Rheumatology, NDORMS, University of Oxford, Roosevelt Drive, Oxford OX3 7FY, UK
| | - Alexander Yermanos
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland; Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland; Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Andreas Carr
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Niculò Barandun
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland
| | - Arne Wehling
- Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Miroslav Balaz
- Department of Metabolic Disease Research, Biomedical Research Center of the Slovak Academy of Sciences, Dubravska cesta 9, 845 05 Bratislava, Slovakia; Department of Health Sciences and Technology, ETH Zurich, Schorenstrasse 16, 8603 Schwerzenbach, Switzerland
| | - Timm Schroeder
- Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058 Basel, Switzerland
| | - Annette Oxenius
- Institute of Microbiology, ETH Zurich, Vladimir-Prelog-Weg 4, 8093 Zurich, Switzerland.
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8
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Straub A, Grassmann S, Jarosch S, Richter L, Hilgendorf P, Hammel M, Wagner KI, Buchholz VR, Schober K, Busch DH. Recruitment of epitope-specific T cell clones with a low-avidity threshold supports efficacy against mutational escape upon re-infection. Immunity 2023:S1074-7613(23)00179-6. [PMID: 37164014 DOI: 10.1016/j.immuni.2023.04.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/01/2023] [Accepted: 04/13/2023] [Indexed: 05/12/2023]
Abstract
Repetitive pathogen exposure leads to the dominant outgrowth of T cell clones with high T cell receptor (TCR) affinity to the relevant pathogen-associated antigens. However, low-affinity clones are also known to expand and form immunological memory. While these low-affinity clones contribute less immunity to the original pathogen, their role in protection against pathogens harboring immune escape mutations remains unclear. Based on identification of the TCR repertoire and functionality landscape of naive epitope-specific CD8+ T cells, we reconstructed defined repertoires that could be followed as polyclonal populations during immune responses in vivo. We found that selective clonal expansion is governed by clear TCR avidity thresholds. Simultaneously, initial recruitment of broad TCR repertoires provided a polyclonal niche from which flexible secondary responses to mutant epitopes could be recalled. Elucidating how T cell responses develop "from scratch" is informative for the development of enhanced immunotherapies and vaccines.
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Affiliation(s)
- Adrian Straub
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Simon Grassmann
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany; The Joseph Sun Lab, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Sebastian Jarosch
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Lena Richter
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Philipp Hilgendorf
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany; Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany
| | - Monika Hammel
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Karolin I Wagner
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Veit R Buchholz
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Kilian Schober
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany; Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Erlangen, Germany; Medical Immunology Campus Erlangen, Friedrich-Alexander-Universität (FAU) Erlangen-Nürnberg, Schlossplatz 1, 91054 Erlangen, Germany.
| | - Dirk H Busch
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany; Partner site Munich, German Center for Infection Research (DZIF), Munich, Germany.
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9
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Ide H, Aoshi T, Saito M, Espulgar WV, Briones JC, Hosokawa M, Matsunaga H, Arikawa K, Takeyama H, Koyama S, Takamatsu H, Tamiya E. Linking antigen specific T-cell dynamics in a microfluidic chip to single cell transcription patterns. Biochem Biophys Res Commun 2023; 657:8-15. [PMID: 36963175 DOI: 10.1016/j.bbrc.2023.03.035] [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: 02/24/2023] [Revised: 03/10/2023] [Accepted: 03/13/2023] [Indexed: 03/17/2023]
Abstract
A new non-invasive screening profile has been realized that can aid in determining T-cell activation state at single-cell level. Production of activated T-cells with good specificity and stable proliferation is greatly beneficial for advancing adoptive immunotherapy as innate immunological cells are not effective in recognizing and eliminating cancer as expected. The screening method is realized by relating intracellular Ca2+ intensity and motility of T-cells interacting with APC (Antigen Presenting Cells) in a microfluidic chip. The system is tested using APC pulsed with OVA257-264 peptide and its modified affinities (N4, Q4, T4 and V4), and the T-cells from OT-1 mice. In addition, single cell RNA sequencing reveals the activation states of the cells and the clusters from the derived profiles can be indicative of the T-cell activation state. The presented system here can be versatile for a comprehensive application to proceed with T-cell-based immunotherapy and screen the antigen-specific T-cells with excellent efficiency and high proliferation.
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Affiliation(s)
- Hiroki Ide
- Graduate School of Engineering Osaka Univ, Japan; PhotoBIO Lab, AIST-Osaka Univ, Japan
| | - Taiki Aoshi
- Research Institute for Microbial Diseases, Osaka Univ, Japan
| | - Masato Saito
- PhotoBIO Lab, AIST-Osaka Univ, Japan; Life and Medical Photonics Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan.
| | | | - Jonathan Campos Briones
- Life and Medical Photonics Division, Institute for Open and Transdisciplinary Research Initiatives, Osaka University, Osaka, Japan
| | - Masahito Hosokawa
- Department of Life Science and Medical Bioscience, Waseda Univ, Japan; CBBD-OIL, AIST-Waseda Univ, Japan; Institute for Advanced Research of Biosystem Dynamics, Waseda Research Institute for Science and Engineering, Waseda Univ, Japan; Research Organization for Nano and Life Innovation, Waseda Univ, Japan
| | - Hiroko Matsunaga
- Research Organization for Nano and Life Innovation, Waseda Univ, Japan
| | - Koji Arikawa
- Research Organization for Nano and Life Innovation, Waseda Univ, Japan
| | - Haruko Takeyama
- Department of Life Science and Medical Bioscience, Waseda Univ, Japan; CBBD-OIL, AIST-Waseda Univ, Japan; Institute for Advanced Research of Biosystem Dynamics, Waseda Research Institute for Science and Engineering, Waseda Univ, Japan; Research Organization for Nano and Life Innovation, Waseda Univ, Japan
| | | | | | - Eiichi Tamiya
- PhotoBIO Lab, AIST-Osaka Univ, Japan; Institute of Scientific and Industrial Research, Osaka University, Japan
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10
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Leube J, Mühlbauer A, Andrä I, Biggel M, Busch DH, Kretschmer L, Buchholz VR. Single-cell fate mapping reveals widespread clonal ignorance of low-affinity T cells exposed to systemic infection. Eur J Immunol 2023; 53:e2250009. [PMID: 36458456 PMCID: PMC7614329 DOI: 10.1002/eji.202250009] [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: 05/19/2022] [Revised: 11/02/2022] [Accepted: 11/29/2022] [Indexed: 12/03/2022]
Abstract
T cell ignorance is a specific form of immunological tolerance. It describes the maintenance of naivety in antigen-specific T cells in vivo despite the presence of their target antigen. It is thought to mainly play a role during the steady state, when self-antigens are presented in absence of costimulatory signals and at low density or to T cells of low affinity. In how far antigen-specific T cells can also remain clonally ignorant to foreign antigens, presented in the inflammatory context of systemic infection, remains unclear. Using single-cell in vivo fate mapping and high throughput flow cytometric enrichment, we find that high-affinity antigen-specific CD8+ T cells are efficiently recruited upon systemic infection. In contrast, most low-affinity antigen-specific T cells ignore the priming antigen and persist in the naïve state while remaining fully responsive to subsequent immunization with a high-affinity ligand. These data establish the widespread clonal ignorance of low-affinity T cells as a major factor shaping the composition of antigen-specific CD8+ T cell responses to systemic infection.
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Affiliation(s)
- Justin Leube
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Anton Mühlbauer
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Immanuel Andrä
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Madleen Biggel
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Dirk H. Busch
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
- German Center for Infection Research (DZIF), Munich, Germany
| | - Lorenz Kretschmer
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
| | - Veit R. Buchholz
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München (TUM), Munich, Germany
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11
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Pritchard GH, Phan AT, Christian DA, Blain TJ, Fang Q, Johnson J, Roy NH, Shallberg L, Kedl RM, Hunter CA. Early T-bet promotes LFA1 upregulation required for CD8+ effector and memory T cell development. J Exp Med 2023; 220:e20191287. [PMID: 36445307 PMCID: PMC9712775 DOI: 10.1084/jem.20191287] [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: 07/12/2019] [Revised: 08/29/2022] [Accepted: 11/10/2022] [Indexed: 12/03/2022] Open
Abstract
The T-box transcription factor T-bet is regarded as a "master regulator" of CD4+ Th1 differentiation and IFN-γ production. However, in multiple models of infection, T-bet appears less critical for CD8+ T cell expansion and effector function. Here, we show that following vaccination with a replication-deficient strain of Toxoplasma gondii, CD8+ T cell expression of T-bet is required for optimal expansion of parasite-specific effector CD8+ T cells. Analysis of the early events associated with T cell activation reveals that the α chain of LFA1, CD11a, is a target of T-bet, and T-bet is necessary for CD8+ T cell upregulation of this integrin, which influences the initial priming of CD8+ effector T cells. We propose that the early expression of T-bet represents a T cell-intrinsic factor that optimizes T-DC interactions necessary to generate effector responses.
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Affiliation(s)
- Gretchen Harms Pritchard
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Anthony T. Phan
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - David A. Christian
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Trevor J. Blain
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver, Aurora, CO
| | - Qun Fang
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - John Johnson
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Nathan H. Roy
- Department of Pathology and Laboratory Medicine, Children’s Hospital of Philadelphia Research Institute and Perelman School of Medicine of the University of Pennsylvania, Philadelphia, PA
| | - Lindsey Shallberg
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
| | - Ross M. Kedl
- Department of Immunology and Microbiology, School of Medicine, University of Colorado Denver, Aurora, CO
| | - Christopher A. Hunter
- Department of Pathobiology, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, PA
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12
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Meitei HT, Lal G. T cell receptor signaling in the differentiation and plasticity of CD4 + T cells. Cytokine Growth Factor Rev 2023; 69:14-27. [PMID: 36028461 DOI: 10.1016/j.cytogfr.2022.08.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Accepted: 08/17/2022] [Indexed: 02/07/2023]
Abstract
CD4+ T cells are critical components of the adaptive immune system. The T cell receptor (TCR) and co-receptor signaling cascades shape the phenotype and functions of CD4+ T cells. TCR signaling plays a crucial role in T cell development, antigen recognition, activation, and differentiation upon recognition of foreign- or auto-antigens. In specific autoimmune conditions, altered TCR repertoire is reported and can predispose autoimmunity with organ-specific inflammation and tissue damage. TCR signaling modulates various signaling cascades and regulates epigenetic and transcriptional regulation during homeostasis and disease conditions. Understanding the mechanism by which coreceptors and cytokine signals control the magnitude of TCR signal amplification will aid in developing therapeutic strategies to treat inflammation and autoimmune diseases. This review focuses on the role of the TCR signaling cascade and its components in the activation, differentiation, and plasticity of various CD4+ T cell subsets.
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Affiliation(s)
| | - Girdhari Lal
- National Centre for Cell Science, SPPU campus, Ganeshkhind, Pune, MH 411007, India.
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13
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Zhang B, Upadhyay R, Hao Y, Samanovic MI, Herati RS, Blair J, Axelrad J, Mulligan MJ, Littman DR, Satija R. Multimodal characterization of antigen-specific CD8 + T cells across SARS-CoV-2 vaccination and infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.01.24.525203. [PMID: 36747786 PMCID: PMC9900816 DOI: 10.1101/2023.01.24.525203] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The human immune response to SARS-CoV-2 antigen after infection or vaccination is defined by the durable production of antibodies and T cells. Population-based monitoring typically focuses on antibody titer, but there is a need for improved characterization and quantification of T cell responses. Here, we utilize multimodal sequencing technologies to perform a longitudinal analysis of circulating human leukocytes collected before and after BNT162b2 immunization. Our data reveal distinct subpopulations of CD8 + T cells which reliably appear 28 days after prime vaccination (7 days post boost). Using a suite of cross-modality integration tools, we define their transcriptome, accessible chromatin landscape, and immunophenotype, and identify unique biomarkers within each modality. By leveraging DNA-oligo-tagged peptide-MHC multimers and T cell receptor sequencing, we demonstrate that this vaccine-induced population is SARS-CoV-2 antigen-specific and capable of rapid clonal expansion. Moreover, we also identify these CD8 + populations in scRNA-seq datasets from COVID-19 patients and find that their relative frequency and differentiation outcomes are predictive of subsequent clinical outcomes. Our work contributes to our understanding of T cell immunity, and highlights the potential for integrative and multimodal analysis to characterize rare cell populations.
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Affiliation(s)
- Bingjie Zhang
- New York Genome Center, New York, NY, USA
- Center for Genomics and Systems Biology, New York University, New York, NY, USA
- Department of Cell Biology and Regenerative Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Rabi Upadhyay
- Department of Cell Biology and Regenerative Medicine, New York University Grossman School of Medicine, New York, NY, USA
- Perlmutter Cancer Center, New York University Langone Health, New York, NY, USA
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Yuhan Hao
- New York Genome Center, New York, NY, USA
- Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Marie I. Samanovic
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
- New York University Langone Vaccine Center, New York, NY, USA
| | - Ramin S. Herati
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
- New York University Langone Vaccine Center, New York, NY, USA
| | - John Blair
- New York Genome Center, New York, NY, USA
- Center for Genomics and Systems Biology, New York University, New York, NY, USA
| | - Jordan Axelrad
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
| | - Mark J. Mulligan
- Department of Medicine, New York University Grossman School of Medicine, New York, NY, USA
- New York University Langone Vaccine Center, New York, NY, USA
| | - Dan R. Littman
- Department of Cell Biology and Regenerative Medicine, New York University Grossman School of Medicine, New York, NY, USA
- Perlmutter Cancer Center, New York University Langone Health, New York, NY, USA
- Howard Hughes Medical Institute, New York, NY, USA
| | - Rahul Satija
- New York Genome Center, New York, NY, USA
- Center for Genomics and Systems Biology, New York University, New York, NY, USA
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14
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Wu L, Balyan R, Brzostek J, Zhao X, Gascoigne NRJ. Time required for commitment to T cell proliferation depends on TCR affinity and cytokine response. EMBO Rep 2023; 24:e54969. [PMID: 36327141 PMCID: PMC9827553 DOI: 10.15252/embr.202254969] [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: 03/03/2022] [Revised: 10/14/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022] Open
Abstract
T cell activation and effector functions are determined by the affinity of the interaction between T cell receptor (TCR) and its antigenic peptide MHC (pMHC) ligand. A better understanding of the quantitative aspects of TCR-pMHC affinity-dependent T cell activation is critical for the development of new immunotherapeutic strategies. However, the role of TCR-pMHC affinity in regulating the kinetics of CD8+ T cell commitment to proliferation and differentiation is unknown. Here, we show that the stronger the TCR-pMHC affinity, the shorter the time of T cell-APC co-culture required to commit CD8+ T cells to proliferation. The time threshold for T cell cytokine production is much lower than that for cell proliferation. There is a strong correlation between affinity-dependent differences in AKT phosphorylation and T cell proliferation. The cytokine IL-15 increases the poor proliferation of T cells stimulated with low affinity pMHC, suggesting that pro-inflammatory cytokines can override the affinity-dependent features of T cell proliferation.
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Affiliation(s)
- Liang‐zhe Wu
- Immunology Translational Research Programme, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Department of Microbiology and Immunology, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
| | - Renu Balyan
- Immunology Translational Research Programme, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Department of Microbiology and Immunology, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Present address:
Tessa Therapeutics Ltd.SingaporeSingapore
| | - Joanna Brzostek
- Immunology Translational Research Programme, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Department of Microbiology and Immunology, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Present address:
Department of BiologyUniversity of FreiburgFreiburg im BreisgauGermany
| | - Xiang Zhao
- Department of Microbiology and Immunology, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Present address:
Stanford University School of MedicineStanfordCAUSA
| | - Nicholas R J Gascoigne
- Immunology Translational Research Programme, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
- Department of Microbiology and Immunology, Yong Loo Lin School of MedicineNational University of SingaporeSingaporeSingapore
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15
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Kasmani MY, Zander R, Chung HK, Chen Y, Khatun A, Damo M, Topchyan P, Johnson KE, Levashova D, Burns R, Lorenz UM, Tarakanova VL, Joshi NS, Kaech SM, Cui W. Clonal lineage tracing reveals mechanisms skewing CD8+ T cell fate decisions in chronic infection. J Exp Med 2023; 220:e20220679. [PMID: 36315049 PMCID: PMC9623343 DOI: 10.1084/jem.20220679] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Revised: 06/17/2022] [Accepted: 08/08/2022] [Indexed: 11/05/2022] Open
Abstract
Although recent evidence demonstrates heterogeneity among CD8+ T cells during chronic infection, developmental relationships and mechanisms underlying their fate decisions remain incompletely understood. Using single-cell RNA and TCR sequencing, we traced the clonal expansion and differentiation of CD8+ T cells during chronic LCMV infection. We identified immense clonal and phenotypic diversity, including a subset termed intermediate cells. Trajectory analyses and infection models showed intermediate cells arise from progenitor cells before bifurcating into terminal effector and exhausted subsets. Genetic ablation experiments identified that type I IFN drives exhaustion through an IRF7-dependent mechanism, possibly through an IFN-stimulated subset bridging progenitor and exhausted cells. Conversely, Zeb2 was critical for generating effector cells. Intriguingly, some T cell clones exhibited lineage bias. Mechanistically, we identified that TCR avidity correlates with an exhausted fate, whereas SHP-1 selectively restricts low-avidity effector cell accumulation. Thus, our work elucidates novel mechanisms underlying CD8+ T cell fate determination during persistent infection and suggests two potential pathways leading to exhaustion.
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Affiliation(s)
- Moujtaba Y. Kasmani
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI
| | - Ryan Zander
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI
| | - H. Kay Chung
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, CA
| | - Yao Chen
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI
| | - Achia Khatun
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI
| | - Martina Damo
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT
| | - Paytsar Topchyan
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI
| | - Kaitlin E. Johnson
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI
| | - Darya Levashova
- Department of Microbiology, Immunology, and Cancer Biology, and Carter Immunology Center, University of Virginia, Charlottesville, VA
| | - Robert Burns
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI
| | - Ulrike M. Lorenz
- Department of Microbiology, Immunology, and Cancer Biology, and Carter Immunology Center, University of Virginia, Charlottesville, VA
| | - Vera L. Tarakanova
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI
| | - Nikhil S. Joshi
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT
| | - Susan M. Kaech
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, CA
| | - Weiguo Cui
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI
- Blood Research Institute, Versiti Wisconsin, Milwaukee, WI
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16
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Identification of human progenitors of exhausted CD8 + T cells associated with elevated IFN-γ response in early phase of viral infection. Nat Commun 2022; 13:7543. [PMID: 36477661 PMCID: PMC9729230 DOI: 10.1038/s41467-022-35281-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 11/25/2022] [Indexed: 12/12/2022] Open
Abstract
T cell exhaustion is a hallmark of hepatitis C virus (HCV) infection and limits protective immunity in chronic viral infections and cancer. Limited knowledge exists of the initial viral and immune dynamics that characterise exhaustion in humans. We studied longitudinal blood samples from a unique cohort of individuals with primary infection using single-cell multi-omics to identify the functions and phenotypes of HCV-specific CD8+ T cells. Early elevated IFN-γ response against the transmitted virus is associated with the rate of immune escape, larger clonal expansion, and early onset of exhaustion. Irrespective of disease outcome, we find heterogeneous subsets of progenitors of exhaustion, based on the level of PD-1 expression and loss of AP-1 transcription factors. Intra-clonal analysis shows distinct trajectories with multiple fates and evolutionary plasticity of precursor cells. These findings challenge the current paradigm on the contribution of CD8+ T cells to HCV disease outcome and provide data for future studies on T cell differentiation in human infections.
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17
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Inflammatory Cytokines That Enhance Antigen Responsiveness of Naïve CD8 + T Lymphocytes Modulate Chromatin Accessibility of Genes Impacted by Antigen Stimulation. Int J Mol Sci 2022; 23:ijms232214122. [PMID: 36430600 PMCID: PMC9698886 DOI: 10.3390/ijms232214122] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 11/08/2022] [Accepted: 11/10/2022] [Indexed: 11/18/2022] Open
Abstract
Naïve CD8+ T lymphocytes exposed to certain inflammatory cytokines undergo proliferation and display increased sensitivity to antigens. Such 'cytokine priming' can promote the activation of potentially autoreactive and antitumor CD8+ T cells by weak tissue antigens and tumor antigens. To elucidate the molecular mechanisms of cytokine priming, naïve PMEL-1 TCR transgenic CD8+ T lymphocytes were stimulated with IL-15 and IL-21, and chromatin accessibility was assessed using the assay for transposase-accessible chromatin (ATAC) sequencing. PMEL-1 cells stimulated by the cognate antigenic peptide mgp10025-33 served as controls. Cytokine-primed cells showed a limited number of opening and closing chromatin accessibility peaks compared to antigen-stimulated cells. However, the ATACseq peaks in cytokine-primed cells substantially overlapped with those of antigen-stimulated cells and mapped to several genes implicated in T cell signaling, activation, effector differentiation, negative regulation and exhaustion. Nonetheless, the expression of most of these genes was remarkably different between cytokine-primed and antigen-stimulated cells. In addition, cytokine priming impacted the expression of several genes following antigen stimulation in a synergistic or antagonistic manner. Our findings indicate that chromatin accessibility changes in cytokine-primed naïve CD8+ T cells not only underlie their increased antigen responsiveness but may also enhance their functional fitness by reducing exhaustion without compromising regulatory controls.
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18
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Kasmani MY, Ciecko AE, Brown AK, Petrova G, Gorski J, Chen YG, Cui W. Autoreactive CD8 T cells in NOD mice exhibit phenotypic heterogeneity but restricted TCR gene usage. Life Sci Alliance 2022; 5:5/10/e202201503. [PMID: 35667687 PMCID: PMC9170949 DOI: 10.26508/lsa.202201503] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 05/24/2022] [Accepted: 05/25/2022] [Indexed: 11/27/2022] Open
Abstract
Paired scRNA-seq and scTCR-seq reveals that diabetogenic CD8 T cells in the islets and spleens of NOD mice exhibit phenotypic and clonal heterogeneity despite restricted TCR gene usage. Expression of certain TCR genes correlates with clonal proliferation and effector phenotype. Type 1 diabetes (T1D) is an autoimmune disorder defined by CD8 T cell–mediated destruction of pancreatic β cells. We have previously shown that diabetogenic CD8 T cells in the islets of non-obese diabetic mice are phenotypically heterogeneous, but clonal heterogeneity remains relatively unexplored. Here, we use paired single-cell RNA and T-cell receptor sequencing (scRNA-seq and scTCR-seq) to characterize autoreactive CD8 T cells from the islets and spleens of non-obese diabetic mice. scTCR-seq demonstrates that CD8 T cells targeting the immunodominant β-cell epitope IGRP206-214 exhibit restricted TCR gene usage. scRNA-seq identifies six clusters of autoreactive CD8 T cells in the islets and six in the spleen, including memory and exhausted cells. Clonal overlap between IGRP206-214–reactive CD8 T cells in the islets and spleen suggests these cells may circulate between the islets and periphery. Finally, we identify correlations between TCR genes and T-cell clonal expansion and effector fate. Collectively, our work demonstrates that IGRP206-214–specific CD8 T cells are phenotypically heterogeneous but clonally restricted, raising the possibility of selectively targeting these TCR structures for therapeutic benefit.
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Affiliation(s)
- Moujtaba Y Kasmani
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA.,Blood Research Institute, Versiti Wisconsin, Milwaukee, WI, USA
| | - Ashley E Ciecko
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA.,Max McGee National Research Center for Juvenile Diabetes, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Ashley K Brown
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA.,Blood Research Institute, Versiti Wisconsin, Milwaukee, WI, USA
| | - Galina Petrova
- Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Jack Gorski
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA.,Blood Research Institute, Versiti Wisconsin, Milwaukee, WI, USA
| | - Yi-Guang Chen
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA .,Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA.,Max McGee National Research Center for Juvenile Diabetes, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Weiguo Cui
- Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA .,Blood Research Institute, Versiti Wisconsin, Milwaukee, WI, USA
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19
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Voisinne G, Locard-Paulet M, Froment C, Maturin E, Menoita MG, Girard L, Mellado V, Burlet-Schiltz O, Malissen B, Gonzalez de Peredo A, Roncagalli R. Kinetic proofreading through the multi-step activation of the ZAP70 kinase underlies early T cell ligand discrimination. Nat Immunol 2022; 23:1355-1364. [PMID: 36045187 PMCID: PMC9477740 DOI: 10.1038/s41590-022-01288-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Accepted: 07/15/2022] [Indexed: 12/18/2022]
Abstract
T cells recognize a few high-affinity antigens among a vast array of lower affinity antigens. According to the kinetic proofreading model, antigen discrimination properties could be explained by the gradual amplification of small differences in binding affinities as the signal is transduced downstream of the T cell receptor. Which early molecular events are affected by ligand affinity, and how, has not been fully resolved. Here, we used time-resolved high-throughput proteomic analyses to identify and quantify the phosphorylation events and protein-protein interactions encoding T cell ligand discrimination in antigen-experienced T cells. Although low-affinity ligands induced phosphorylation of the Cd3 chains of the T cell receptor and the interaction of Cd3 with the Zap70 kinase as strongly as high-affinity ligands, they failed to activate Zap70 to the same extent. As a result, formation of the signalosome of the Lat adaptor was severely impaired with low- compared with high-affinity ligands, whereas formation of the signalosome of the Cd6 receptor was affected only partially. Overall, this study provides a comprehensive map of molecular events associated with T cell ligand discrimination.
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Affiliation(s)
- Guillaume Voisinne
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, Marseille, France
| | - Marie Locard-Paulet
- Département Biologie Structural Biophysique, Institut de Pharmacologie et de Biologie Structurale, Protéomique Génopole Toulouse Midi Pyrénées CNRS UMR, Toulouse, France.,Novo Nordisk Foundation Center for Protein Research, University of Copenhagen, Copenhagen, Denmark
| | - Carine Froment
- Département Biologie Structural Biophysique, Institut de Pharmacologie et de Biologie Structurale, Protéomique Génopole Toulouse Midi Pyrénées CNRS UMR, Toulouse, France
| | - Emilie Maturin
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, Marseille, France
| | - Marisa Goncalves Menoita
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, Marseille, France
| | - Laura Girard
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, Marseille, France.,Centre d'Immunophénomique, Aix Marseille Université, INSERM, CNRS, Marseille, France
| | - Valentin Mellado
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, Marseille, France
| | - Odile Burlet-Schiltz
- Département Biologie Structural Biophysique, Institut de Pharmacologie et de Biologie Structurale, Protéomique Génopole Toulouse Midi Pyrénées CNRS UMR, Toulouse, France
| | - Bernard Malissen
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, Marseille, France. .,Centre d'Immunophénomique, Aix Marseille Université, INSERM, CNRS, Marseille, France.
| | - Anne Gonzalez de Peredo
- Département Biologie Structural Biophysique, Institut de Pharmacologie et de Biologie Structurale, Protéomique Génopole Toulouse Midi Pyrénées CNRS UMR, Toulouse, France.
| | - Romain Roncagalli
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille Université, INSERM, CNRS, Marseille, France.
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20
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Richard AC. Divide and Conquer: Phenotypic and Temporal Heterogeneity Within CD8+ T Cell Responses. Front Immunol 2022; 13:949423. [PMID: 35911755 PMCID: PMC9334874 DOI: 10.3389/fimmu.2022.949423] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 06/22/2022] [Indexed: 11/23/2022] Open
Abstract
The advent of technologies that can characterize the phenotypes, functions and fates of individual cells has revealed extensive and often unexpected levels of diversity between cells that are nominally of the same subset. CD8+ T cells, also known as cytotoxic T lymphocytes (CTLs), are no exception. Investigations of individual CD8+ T cells both in vitro and in vivo have highlighted the heterogeneity of cellular responses at the levels of activation, differentiation and function. This review takes a broad perspective on the topic of heterogeneity, outlining different forms of variation that arise during a CD8+ T cell response. Specific attention is paid to the impact of T cell receptor (TCR) stimulation strength on heterogeneity. In particular, this review endeavors to highlight connections between variation at different cellular stages, presenting known mechanisms and key open questions about how variation between cells can arise and propagate.
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21
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Shakiba M, Zumbo P, Espinosa-Carrasco G, Menocal L, Dündar F, Carson SE, Bruno EM, Sanchez-Rivera FJ, Lowe SW, Camara S, Koche RP, Reuter VP, Socci ND, Whitlock B, Tamzalit F, Huse M, Hellmann MD, Wells DK, Defranoux NA, Betel D, Philip M, Schietinger A. TCR signal strength defines distinct mechanisms of T cell dysfunction and cancer evasion. J Exp Med 2022; 219:212936. [PMID: 34935874 PMCID: PMC8704919 DOI: 10.1084/jem.20201966] [Citation(s) in RCA: 61] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2020] [Revised: 07/07/2021] [Accepted: 11/12/2021] [Indexed: 12/26/2022] Open
Abstract
T cell receptor (TCR) signal strength is a key determinant of T cell responses. We developed a cancer mouse model in which tumor-specific CD8 T cells (TST cells) encounter tumor antigens with varying TCR signal strength. High-signal-strength interactions caused TST cells to up-regulate inhibitory receptors (IRs), lose effector function, and establish a dysfunction-associated molecular program. TST cells undergoing low-signal-strength interactions also up-regulated IRs, including PD1, but retained a cell-intrinsic functional state. Surprisingly, neither high- nor low-signal-strength interactions led to tumor control in vivo, revealing two distinct mechanisms by which PD1hi TST cells permit tumor escape; high signal strength drives dysfunction, while low signal strength results in functional inertness, where the signal strength is too low to mediate effective cancer cell killing by functional TST cells. CRISPR-Cas9-mediated fine-tuning of signal strength to an intermediate range improved anti-tumor activity in vivo. Our study defines the role of TCR signal strength in TST cell function, with important implications for T cell-based cancer immunotherapies.
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Affiliation(s)
- Mojdeh Shakiba
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY.,Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY
| | - Paul Zumbo
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY.,Applied Bioinformatics Core, Weill Cornell Medicine, New York, NY
| | | | - Laura Menocal
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Friederike Dündar
- Department of Physiology and Biophysics, Weill Cornell Medicine, New York, NY.,Applied Bioinformatics Core, Weill Cornell Medicine, New York, NY
| | - Sandra E Carson
- Department of Biochemistry, Cell and Molecular Biology, Weill Cornell Medicine, New York, NY
| | - Emmanuel M Bruno
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - Scott W Lowe
- Cancer Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Steven Camara
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Richard P Koche
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Vincent P Reuter
- Center for Epigenetics Research, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Nicholas D Socci
- Bioinformatics Core Facility, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Benjamin Whitlock
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Fella Tamzalit
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY
| | - Morgan Huse
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY.,Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY
| | - Matthew D Hellmann
- Parker Institute for Cancer Immunotherapy, San Francisco, CA.,Thoracic Oncology Service, Memorial Sloan Kettering Cancer Center, New York, NY.,Weill Cornell Medical College, Cornell University, New York, NY
| | - Daniel K Wells
- Parker Institute for Cancer Immunotherapy, San Francisco, CA
| | | | - Doron Betel
- Applied Bioinformatics Core, Weill Cornell Medicine, New York, NY.,Institute for Computational Biomedicine, Weill Cornell Medicine, New York, NY.,Division of Hematology and Medical Oncology, Department of Medicine, Weill Cornell Medicine, New York, NY
| | - Mary Philip
- Department of Medicine, Division of Hematology and Oncology, Vanderbilt University Medical Center, Nashville, TN
| | - Andrea Schietinger
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY.,Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, New York, NY
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22
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Wong WK, Yin B, Lam CYK, Huang Y, Yan J, Tan Z, Wong SHD. The Interplay Between Epigenetic Regulation and CD8 + T Cell Differentiation/Exhaustion for T Cell Immunotherapy. Front Cell Dev Biol 2022; 9:783227. [PMID: 35087832 PMCID: PMC8787221 DOI: 10.3389/fcell.2021.783227] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2021] [Accepted: 12/20/2021] [Indexed: 12/15/2022] Open
Abstract
Effective immunotherapy treats cancers by eradicating tumourigenic cells by activated tumour antigen-specific and bystander CD8+ T-cells. However, T-cells can gradually lose cytotoxicity in the tumour microenvironment, known as exhaustion. Recently, DNA methylation, histone modification, and chromatin architecture have provided novel insights into epigenetic regulations of T-cell differentiation/exhaustion, thereby controlling the translational potential of the T-cells. Thus, developing strategies to govern epigenetic switches of T-cells dynamically is critical to maintaining the effector function of antigen-specific T-cells. In this mini-review, we 1) describe the correlation between epigenetic states and T cell phenotypes; 2) discuss the enzymatic factors and intracellular/extracellular microRNA imprinting T-cell epigenomes that drive T-cell exhaustion; 3) highlight recent advances in epigenetic interventions to rescue CD8+ T-cell functions from exhaustion. Finally, we express our perspective that regulating the interplay between epigenetic changes and transcriptional programs provides translational implications of current immunotherapy for cancer treatments.
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Affiliation(s)
- Wai Ki Wong
- Department of Bioengineering, Imperial College London, London, United Kingdom
| | - Bohan Yin
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Ching Ying Katherine Lam
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Yingying Huang
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Jiaxiang Yan
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
| | - Zhiwu Tan
- AIDS Institute and Department of Microbiology, The University of Hong Kong, Pokfulam, Hong Kong, China
| | - Siu Hong Dexter Wong
- Department of Biomedical Engineering, The Hong Kong Polytechnic University, Kowloon, Hong Kong, China
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23
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Duckworth BC, Qin RZ, Groom JR. Spatial determinates of effector and memory CD8 + T cell fates. Immunol Rev 2021; 306:76-92. [PMID: 34882817 DOI: 10.1111/imr.13044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2021] [Accepted: 11/06/2021] [Indexed: 12/17/2022]
Abstract
The lymph node plays a critical role in mounting an adaptive immune response to infection, clearance of foreign pathogens, and cancer immunosurveillance. Within this complex structure, intranodal migration is vital for CD8+ T cell activation and differentiation. Combining tissue clearing and volumetric light sheet fluorescent microscopy of intact lymph nodes has allowed us to explore the spatial regulation of T cell fates. This has determined that short-lived effector (TSLEC ) are imprinted in peripheral lymph node interfollicular regions, due to CXCR3 migration. In contrast, stem-like memory cell (TSCM ) differentiation is determined in the T cell paracortex. Here, we detail the inflammatory and chemokine regulators of spatially restricted T cell differentiation, with a focus on how to promote TSCM . We propose a default pathway for TSCM differentiation due to CCR7-directed segregation of precursors away from the inflammatory effector niche. Although volumetric imaging has revealed the consequences of intranodal migration, we still lack knowledge of how this is orchestrated within a complex chemokine environment. Toward this goal, we highlight the potential of combining microfluidic chambers with pre-determined complexity and subcellular resolution microscopy.
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Affiliation(s)
- Brigette C Duckworth
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Vic, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Vic, Australia
| | - Raymond Z Qin
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Vic, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Vic, Australia
| | - Joanna R Groom
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Vic, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Vic, Australia
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24
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Onder L, Cheng HW, Ludewig B. Visualization and functional characterization of lymphoid organ fibroblasts. Immunol Rev 2021; 306:108-122. [PMID: 34866192 PMCID: PMC9300201 DOI: 10.1111/imr.13051] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 11/21/2021] [Accepted: 11/23/2021] [Indexed: 11/29/2022]
Abstract
Fibroblastic reticular cells (FRCs) are specialized stromal cells of lymphoid organs that generate the structural foundation of the tissue and actively interact with immune cells. Distinct FRC subsets position lymphocytes and myeloid cells in specialized niches where they present processed or native antigen and provide essential growth factors and cytokines for immune cell activation and differentiation. Niche‐specific functions of FRC subpopulations have been defined using genetic targeting, high‐dimensional transcriptomic analyses, and advanced imaging methods. Here, we review recent findings on FRC‐immune cell interaction and the elaboration of FRC development and differentiation. We discuss how imaging approaches have not only shaped our understanding of FRC biology, but have critically advanced the niche concept of immune cell maintenance and control of immune reactivity.
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Affiliation(s)
- Lucas Onder
- Institute of Immunobiology, Medical Research Center, Kantonsspital St.Gallen, St.Gallen, Switzerland
| | - Hung-Wei Cheng
- Institute of Immunobiology, Medical Research Center, Kantonsspital St.Gallen, St.Gallen, Switzerland
| | - Burkhard Ludewig
- Institute of Immunobiology, Medical Research Center, Kantonsspital St.Gallen, St.Gallen, Switzerland
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25
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Lawton ML, Emili A. Mass Spectrometry-Based Phosphoproteomics and Systems Biology: Approaches to Study T Lymphocyte Activation and Exhaustion. J Mol Biol 2021; 433:167318. [PMID: 34687714 DOI: 10.1016/j.jmb.2021.167318] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 10/04/2021] [Accepted: 10/15/2021] [Indexed: 11/24/2022]
Abstract
T lymphocytes respond to extracellular cues and recognize and clear foreign bodies. These functions are tightly regulated by receptor-mediated intracellular signal transduction pathways and phosphorylation cascades resulting in rewiring of transcription, cell adhesion, and metabolic pathways, which leads to changes in downstream effector functions including cytokine secretion and target-cell killing. Given that these pathways become dysregulated in chronic diseases such as cancer, auto-immunity, diabetes, and persistent infections, mapping T cell signaling dynamics in normal and pathological states is central to understanding and modulating immune system behavior. Despite recent advances, there remains much to be learned from the study of T cell signaling at a systems level. The application of global phospho-proteomic profiling technology has the potential to provide unprecedented insights into the molecular networks that govern T cell function. These include capturing the spatiotemporal dynamics of the T cell responses as an ensemble of interacting components, rather than a static view at a single point in time. In this review, we describe innovative experimental approaches to study signaling mechanisms in the TCR, co-stimulatory receptors, synthetic signaling molecules such as chimeric antigen receptors, inhibitory receptors, and T cell exhaustion. Technical advances in mass spectrometry and systems biology frameworks are emphasized as these are poised to identify currently unknown functional relationships and dependencies to create causal predictive models that expand from the traditional narrow reductionist lens of singular components in isolation.
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Affiliation(s)
- Matthew L Lawton
- Center for Network Systems Biology, Boston University, Boston, MA, USA; Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA
| | - Andrew Emili
- Center for Network Systems Biology, Boston University, Boston, MA, USA; Department of Biochemistry, Boston University School of Medicine, Boston, MA, USA; Department of Biology, Boston University, Boston, MA, USA.
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26
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Schienstock D, Mueller SN. Moving beyond velocity: Opportunities and challenges to quantify immune cell behavior. Immunol Rev 2021; 306:123-136. [PMID: 34786722 DOI: 10.1111/imr.13038] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2021] [Revised: 10/20/2021] [Accepted: 11/02/2021] [Indexed: 12/22/2022]
Abstract
The analysis of cellular behavior using intravital multi-photon microscopy has contributed substantially to our understanding of the priming and effector phases of immune responses. Yet, many questions remain unanswered and unexplored. Though advancements in intravital imaging techniques and animal models continue to drive new discoveries, continued improvements in analysis methods are needed to extract detailed information about cellular behavior. Focusing on dendritic cell (DC) and T cell interactions as an exemplar, here we discuss key limitations for intravital imaging studies and review and explore alternative approaches to quantify immune cell behavior. We touch upon current developments in deep learning models, as well as established methods from unrelated fields such as ecology to detect and track objects over time. As developments in open-source software make it possible to process and interactively view larger datasets, the challenge for the field will be to determine how best to combine intravital imaging with multi-parameter imaging of larger tissue regions to discover new facets of leukocyte dynamics and how these contribute to immune responses.
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Affiliation(s)
- Dominik Schienstock
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Vic, Australia
| | - Scott N Mueller
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Melbourne, Vic, Australia
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27
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Beyond multi view deconvolution for inherently aligned fluorescence tomography. Sci Rep 2021; 11:15723. [PMID: 34344932 PMCID: PMC8333050 DOI: 10.1038/s41598-021-95266-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Accepted: 07/15/2021] [Indexed: 11/08/2022] Open
Abstract
In multi-view fluorescence microscopy, each angular acquisition needs to be aligned with care to obtain an optimal volumetric reconstruction. Here, instead, we propose a neat protocol based on auto-correlation inversion, that leads directly to the formation of inherently aligned tomographies. Our method generates sharp reconstructions, with the same accuracy reachable after sub-pixel alignment but with improved point-spread-function. The procedure can be performed simultaneously with deconvolution further increasing the reconstruction resolution.
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28
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Farsakoglu Y, McDonald B, Kaech SM. Motility Matters: How CD8 + T-Cell Trafficking Influences Effector and Memory Cell Differentiation. Cold Spring Harb Perspect Biol 2021; 13:cshperspect.a038075. [PMID: 34001529 PMCID: PMC8327832 DOI: 10.1101/cshperspect.a038075] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Immunological memory is a hallmark of adaptive immunity that confers long-lasting protection from reinfections. Memory CD8+ T cells provide protection by actively scanning for their cognate antigen and migrating into inflamed tissues. Trafficking patterns of CD8+ T cells are also a major determinant of cell fate outcomes during differentiation into effector and memory cell states. CD8+ T-cell trafficking must therefore be dynamically and tightly regulated to ensure that CD8+ T cells arrive at the correct locations and differentiate to acquire appropriate effector functions. This review aims to discuss the importance of CD8+ T-cell trafficking patterns in regulating effector and memory differentiation, maintenance, and reactivation.
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Affiliation(s)
- Yagmur Farsakoglu
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, California 92037, USA
| | - Bryan McDonald
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, California 92037, USA.,Biomedical Sciences Graduate Program, University of California San Diego, La Jolla, California 92093, USA
| | - Susan M Kaech
- NOMIS Center for Immunobiology and Microbial Pathogenesis, Salk Institute for Biological Studies, La Jolla, California 92037, USA
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29
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Frazer GL, Gawden-Bone CM, Dieckmann NMG, Asano Y, Griffiths GM. Signal strength controls the rate of polarization within CTLs during killing. J Cell Biol 2021; 220:212498. [PMID: 34292303 PMCID: PMC8302442 DOI: 10.1083/jcb.202104093] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 06/03/2021] [Accepted: 06/30/2021] [Indexed: 01/19/2023] Open
Abstract
Cytotoxic T lymphocytes (CTLs) are key effector cells in the immune response against viruses and cancers, killing targets with high precision. Target cell recognition by CTL triggers rapid polarization of intracellular organelles toward the synapse formed with the target cell, delivering cytolytic granules to the immune synapse. Single amino acid changes within peptides binding MHC class I (pMHCs) are sufficient to modulate the degree of killing, but exactly how this impacts the choreography of centrosome polarization and granule delivery to the target cell remains poorly characterized. Here we use 4D imaging and find that the pathways orchestrating killing within CTL are conserved irrespective of the signal strength. However, the rate of initiation along these pathways varies with signal strength. We find that increased strength of signal leads to an increased proportion of CTLs with prolonged dwell times, initial Ca2+ fluxes, centrosome docking, and granule polarization. Hence, TCR signal strength modulates the rate but not organization of effector CTL responses.
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Affiliation(s)
- Gordon L Frazer
- Cambridge Institute for Medical Research, Biomedical Campus, Cambridge, UK
| | | | - Nele M G Dieckmann
- Cambridge Institute for Medical Research, Biomedical Campus, Cambridge, UK
| | - Yukako Asano
- Cambridge Institute for Medical Research, Biomedical Campus, Cambridge, UK
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30
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Kuwabara S, Tanimoto Y, Okutani M, Jie M, Haseda Y, Kinugasa-Katayama Y, Aoshi T. Microfluidics sorting enables the isolation of an intact cellular pair complex of CD8+ T cells and antigen-presenting cells in a cognate antigen recognition-dependent manner. PLoS One 2021; 16:e0252666. [PMID: 34125844 PMCID: PMC8202920 DOI: 10.1371/journal.pone.0252666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Accepted: 03/23/2021] [Indexed: 01/22/2023] Open
Abstract
Adaptive immune responses begin with cognate antigen presentation-dependent specific interaction between T cells and antigen-presenting cells. However, there have been limited reports on the isolation and analysis of these cellular complexes of T cell-antigen-presenting cell (T/APC). In this study, we successfully isolated intact antigen-specific cellular complexes of CD8+ T/APC by utilizing a microfluidics cell sorter. Using ovalbumin (OVA) model antigen and OT-I-derived OVA-specific CD8+ T cells, we analyzed the formation of antigen-specific and antigen-non-specific T/APC cellular complexes and revealed that the antigen-specific T/APC cellular complex was highly stable than the non-specific one, and that the intact antigen-specific T/APC complex can be retrieved as well as enriched using a microfluidics sorter, but not a conventional cell sorter. The single T/APC cellular complex obtained can be further analyzed for the sequences of T cell receptor Vα and Vβ genes as well as cognate antigen information simultaneously. These results suggested that this approach can be applied for other antigen and CD8+ T cells of mice and possibly those of humans. We believe that this microfluidics sorting method of the T/APC complex will provide useful information for future T cell immunology research.
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MESH Headings
- Animals
- Antigen Presentation/immunology
- Antigen-Presenting Cells/immunology
- Antigens/immunology
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Cell Communication/immunology
- Cell Line, Tumor
- Cell Separation/methods
- Flow Cytometry/methods
- HEK293 Cells
- Humans
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Microfluidics/methods
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/immunology
- Receptors, Antigen, T-Cell/metabolism
- Reproducibility of Results
- Mice
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Affiliation(s)
- Soichiro Kuwabara
- Vaccine Dynamics Project, BIKEN Innovative Vaccine Research Alliance Laboratories, Research Institute for Microbial Diseases (RIMD), Osaka University, Suita, Osaka, Japan
| | - Yoshihiko Tanimoto
- Vaccine Dynamics Project, BIKEN Innovative Vaccine Research Alliance Laboratories, Research Institute for Microbial Diseases (RIMD), Osaka University, Suita, Osaka, Japan
| | - Mie Okutani
- Vaccine Dynamics Project, BIKEN Innovative Vaccine Research Alliance Laboratories, Research Institute for Microbial Diseases (RIMD), Osaka University, Suita, Osaka, Japan
| | - Meng Jie
- Department of Cellular Immunology, RIMD, Osaka University, Suita, Osaka, Japan
| | - Yasunari Haseda
- Vaccine Dynamics Project, BIKEN Innovative Vaccine Research Alliance Laboratories, Research Institute for Microbial Diseases (RIMD), Osaka University, Suita, Osaka, Japan
| | | | - Taiki Aoshi
- Department of Cellular Immunology, RIMD, Osaka University, Suita, Osaka, Japan
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31
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Intratumoral SIRPα-deficient macrophages activate tumor antigen-specific cytotoxic T cells under radiotherapy. Nat Commun 2021; 12:3229. [PMID: 34050181 PMCID: PMC8163884 DOI: 10.1038/s41467-021-23442-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 04/28/2021] [Indexed: 12/21/2022] Open
Abstract
Radiotherapy (RT)-induced tumoricidal immunity is severely limited when tumors are well-established. Here, we report that depleting SIRPα on intratumoral macrophages augments efficacy of RT to eliminate otherwise large, treatment-resistant colorectal (MC38) and pancreatic (Pan02 and KPC) tumors, inducing complete abscopal remission and long-lasting humoral and cellular immunity that prevent recurrence. SIRPα-deficient macrophages activated by irradiated tumor-released DAMPs exhibit robust efficacy and orchestrate an anti-tumor response that controls late-stage tumors. Upon RT-mediated activation, intratumoral SIRPα-deficient macrophages acquire potent proinflammatory features and conduct immunogenic antigen presentation that confer a tumoricidal microenvironment highly infiltrated by tumor-specific cytotoxic T cells, NK cells and inflammatory neutrophils, but with limited immunosuppressive regulatory T cells, myeloid derived suppressor cells and post-radiation wound-healing. The results demonstrate that SIRPα is a master regulator underlying tumor resistance to RT and provide proof-of-principle for SIRPα-deficient macrophage-based therapies to treat a broad spectrum of cancers, including those at advanced stages with low immunogenicity and metastases.
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32
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Bhattacharyya ND, Counoupas C, Daniel L, Zhang G, Cook SJ, Cootes TA, Stifter SA, Bowen DG, Triccas JA, Bertolino P, Britton WJ, Feng CG. TCR Affinity Controls the Dynamics but Not the Functional Specification of the Antimycobacterial CD4 + T Cell Response. THE JOURNAL OF IMMUNOLOGY 2021; 206:2875-2887. [PMID: 34049970 DOI: 10.4049/jimmunol.2001271] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Accepted: 04/02/2021] [Indexed: 11/19/2022]
Abstract
The quality of T cell responses depends on the lymphocytes' ability to undergo clonal expansion, acquire effector functions, and traffic to the site of infection. Although TCR signal strength is thought to dominantly shape the T cell response, by using TCR transgenic CD4+ T cells with different peptide:MHC binding affinity, we reveal that TCR affinity does not control Th1 effector function acquisition or the functional output of individual effectors following mycobacterial infection in mice. Rather, TCR affinity calibrates the rate of cell division to synchronize the distinct processes of T cell proliferation, differentiation, and trafficking. By timing cell division-dependent IL-12R expression, TCR affinity controls when T cells become receptive to Th1-imprinting IL-12 signals, determining the emergence and magnitude of the Th1 effector pool. These findings reveal a distinct yet cooperative role for IL-12 and TCR binding affinity in Th1 differentiation and suggest that the temporal activation of clones with different TCR affinity is a major strategy to coordinate immune surveillance against persistent pathogens.
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Affiliation(s)
- Nayan D Bhattacharyya
- Immunology and Host Defense Group, Department of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia.,Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Claudio Counoupas
- Microbial Pathogenesis and Immunity Group, Department of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia.,Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Lina Daniel
- Immunology and Host Defense Group, Department of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia.,Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Guoliang Zhang
- Immunology and Host Defense Group, Department of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia.,Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.,National Clinical Research Center for Infectious Diseases, Guangdong Key Laboratory of Emerging Infectious Diseases, Shenzhen Third People's Hospital, Southern University of Science and Technology, Shenzhen, China
| | - Stuart J Cook
- Immune Imaging Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Taylor A Cootes
- Immunology and Host Defense Group, Department of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia.,Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Sebastian A Stifter
- Immunology and Host Defense Group, Department of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia.,Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - David G Bowen
- Liver Immunology Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.,AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia; and
| | - James A Triccas
- Microbial Pathogenesis and Immunity Group, Department of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia.,Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.,Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, New South Wales, Australia
| | - Patrick Bertolino
- Liver Immunology Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.,AW Morrow Gastroenterology and Liver Centre, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia; and
| | - Warwick J Britton
- Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia
| | - Carl G Feng
- Immunology and Host Defense Group, Department of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, New South Wales, Australia; .,Tuberculosis Research Program, Centenary Institute, Royal Prince Alfred Hospital, Camperdown, New South Wales, Australia.,Marie Bashir Institute for Infectious Diseases and Biosecurity, The University of Sydney, Sydney, New South Wales, Australia
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33
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Optimal Maturation of the SIV-Specific CD8 + T Cell Response after Primary Infection Is Associated with Natural Control of SIV: ANRS SIC Study. Cell Rep 2021; 32:108174. [PMID: 32966788 DOI: 10.1016/j.celrep.2020.108174] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 07/10/2020] [Accepted: 08/28/2020] [Indexed: 12/30/2022] Open
Abstract
Highly efficient CD8+ T cells are associated with natural HIV control, but it has remained unclear how these cells are generated and maintained. We have used a macaque model of spontaneous SIVmac251 control to monitor the development of efficient CD8+ T cell responses. Our results show that SIV-specific CD8+ T cells emerge during primary infection in all animals. The ability of CD8+ T cells to suppress SIV is suboptimal in the acute phase but increases progressively in controller macaques before the establishment of sustained low-level viremia. Controller macaques develop optimal memory-like SIV-specific CD8+ T cells early after infection. In contrast, a persistently skewed differentiation phenotype characterizes memory SIV-specific CD8+ T cells in non-controller macaques. Accordingly, the phenotype of SIV-specific CD8+ T cells defined early after infection appears to favor the development of protective immunity in controllers, whereas SIV-specific CD8+ T cells in non-controllers fail to gain antiviral potency, feasibly as a consequence of early defects imprinted in the memory pool.
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34
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Truckenbrod EN, Burrack KS, Knutson TP, Borges da Silva H, Block KE, O'Flanagan SD, Stagliano KR, Hurwitz AA, Fulton RB, Renkema KR, Jameson SC. CD8 + T cell self-tolerance permits responsiveness but limits tissue damage. eLife 2021; 10:65615. [PMID: 33929324 PMCID: PMC8147182 DOI: 10.7554/elife.65615] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 04/29/2021] [Indexed: 01/25/2023] Open
Abstract
Self-specific CD8+T cells can escape clonal deletion, but the properties and capabilities of such cells in a physiological setting are unclear. We characterized polyclonal CD8+ T cells specific for the melanocyte antigen tyrosinase-related protein 2 (Trp2) in mice expressing or lacking this enzyme (due to deficiency in Dct, which encodes Trp2). Phenotypic and gene expression profiles of pre-immune Trp2/Kb-specific cells were similar; the size of this population was only slightly reduced in wild-type (WT) compared to Dct-deficient (Dct-/-) mice. Despite comparable initial responses to Trp2 immunization, WT Trp2/Kb-specific cells showed blunted expansion and less readily differentiated into a CD25+proliferative population. Functional self-tolerance clearly emerged when assessing immunopathology: adoptively transferred WT Trp2/Kb-specific cells mediated vitiligo much less efficiently. Hence, CD8+ T cell self-specificity is poorly predicted by precursor frequency, phenotype, or even initial responsiveness, while deficient activation-induced CD25 expression and other gene expression characteristics may help to identify functionally tolerant cells.
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Affiliation(s)
| | - Kristina S Burrack
- Center for Immunology, University of Minnesota, Saint Paul, United States
| | - Todd P Knutson
- Minnesota Supercomputing Institute, University of Minnesota, Saint Paul, United States
| | | | - Katharine E Block
- Center for Immunology, University of Minnesota, Saint Paul, United States
| | | | - Katie R Stagliano
- Center for Immunology, University of Minnesota, Saint Paul, United States
| | - Arthur A Hurwitz
- Center for Immunology, University of Minnesota, Saint Paul, United States
| | - Ross B Fulton
- Center for Immunology, University of Minnesota, Saint Paul, United States
| | - Kristin R Renkema
- Center for Immunology, University of Minnesota, Saint Paul, United States
| | - Stephen C Jameson
- Center for Immunology, University of Minnesota, Saint Paul, United States
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35
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Duckworth BC, Lafouresse F, Wimmer VC, Broomfield BJ, Dalit L, Alexandre YO, Sheikh AA, Qin RZ, Alvarado C, Mielke LA, Pellegrini M, Mueller SN, Boudier T, Rogers KL, Groom JR. Effector and stem-like memory cell fates are imprinted in distinct lymph node niches directed by CXCR3 ligands. Nat Immunol 2021; 22:434-448. [PMID: 33649580 DOI: 10.1038/s41590-021-00878-5] [Citation(s) in RCA: 61] [Impact Index Per Article: 20.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 01/14/2021] [Indexed: 02/07/2023]
Abstract
T cells dynamically interact with multiple, distinct cellular subsets to determine effector and memory differentiation. Here, we developed a platform to quantify cell location in three dimensions to determine the spatial requirements that direct T cell fate. After viral infection, we demonstrated that CD8+ effector T cell differentiation is associated with positioning at the lymph node periphery. This was instructed by CXCR3 signaling since, in its absence, T cells are confined to the lymph node center and alternatively differentiate into stem-like memory cell precursors. By mapping the cellular sources of CXCR3 ligands, we demonstrated that CXCL9 and CXCL10 are expressed by spatially distinct dendritic and stromal cell subsets. Unlike effector cells, retention of stem-like memory precursors in the paracortex is associated with CCR7 expression. Finally, we demonstrated that T cell location can be tuned, through deficiency in CXCL10 or type I interferon signaling, to promote effector or stem-like memory fates.
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MESH Headings
- Animals
- Arenaviridae Infections/genetics
- Arenaviridae Infections/immunology
- Arenaviridae Infections/metabolism
- Arenaviridae Infections/virology
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- CD8-Positive T-Lymphocytes/virology
- Cell Differentiation
- Cell Lineage
- Cells, Cultured
- Chemokine CXCL10/genetics
- Chemokine CXCL10/metabolism
- Chemokine CXCL9/genetics
- Chemokine CXCL9/metabolism
- Chemotaxis, Leukocyte
- Dendritic Cells/immunology
- Dendritic Cells/metabolism
- Disease Models, Animal
- Host-Pathogen Interactions
- Immunologic Memory
- Interferon Type I/metabolism
- Ligands
- Lymph Nodes/immunology
- Lymph Nodes/metabolism
- Lymph Nodes/virology
- Lymphocytic choriomeningitis virus/immunology
- Lymphocytic choriomeningitis virus/pathogenicity
- Mice, Inbred C57BL
- Mice, Knockout
- Phenotype
- Precursor Cells, T-Lymphoid/immunology
- Precursor Cells, T-Lymphoid/metabolism
- Precursor Cells, T-Lymphoid/virology
- Receptor, Interferon alpha-beta/genetics
- Receptor, Interferon alpha-beta/metabolism
- Receptors, CCR7/metabolism
- Receptors, CXCR3/genetics
- Receptors, CXCR3/metabolism
- Signal Transduction
- Stem Cell Niche
- Stromal Cells/immunology
- Stromal Cells/metabolism
- Mice
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Affiliation(s)
- Brigette C Duckworth
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia.
| | - Fanny Lafouresse
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Centre de Recherches en Cancérologie de Toulouse, INSERM U1037, Equipe Labellisée Ligue Nationale Contre le Cancer, Université de Toulouse III-Paul Sabatier, Toulouse, France
| | - Verena C Wimmer
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Centre for Dynamic Imaging, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Benjamin J Broomfield
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Lennard Dalit
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Yannick O Alexandre
- Department of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Amania A Sheikh
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Raymond Z Qin
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Carolina Alvarado
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Lisa A Mielke
- Olivia Newton-John Cancer Research Institute, La Trobe University School of Cancer Medicine, Heidelberg, Victoria, Australia
| | - Marc Pellegrini
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Division of Infection and Immunity, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Scott N Mueller
- Department of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- The Australian Research Council Centre of Excellence in Advanced Molecular Imaging, The University of Melbourne, Melbourne, Victoria, Australia
| | - Thomas Boudier
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Centre for Dynamic Imaging, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Sorbonne Université, Paris, France
| | - Kelly L Rogers
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Centre for Dynamic Imaging, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Joanna R Groom
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia.
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36
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Wang Y, Zhang P, Wei Y, Shen K, Xiao L, Miron RJ, Zhang Y. Cell-Membrane-Display Nanotechnology. Adv Healthc Mater 2021; 10:e2001014. [PMID: 33000917 DOI: 10.1002/adhm.202001014] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 09/13/2020] [Indexed: 12/19/2022]
Abstract
Advances in material science have set the stage for nanoparticle-based research with potent applications for the diagnosis, bioimaging, and precise treatment of diseases. Despite the wide range of biomaterials developed, the rational design of biomaterials with predictable bioactivity and safety remains a critical challenge. In recent years, the field of cell-membrane-based therapeutics has emerged as a promising platform for addressing unmet medical needs. The utilization of natural cell membranes endows biomaterials with a remarkable ability to serve as biointerfaces that interact with the host environment. To improve the function and efficacy of cell-membrane-based therapeutics, a series of novel strategies is developed as cell-membrane-display nanotechnology, which utilizes various methods to selectively display therapeutic molecules of cell membranes on nanoparticles. Although cell-membrane-display nanotechnology remains in the early phases, considerable work is currently being conducted in the field. This review discusses details of innovative strategies for displaying cell-membrane molecules, including the following: 1) displaying molecules of cell membranes on biomaterials, 2) pretreating cell membranes to induce increased expression of inherent molecules of cell membranes and enhance their function, and 3) inserting additional functional molecules on cell membranes. For each area, the theoretical basis, application scenarios, and potential development are highlighted.
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Affiliation(s)
- Yulan Wang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) and Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of Stomatology Wuhan University Wuhan 430079 China
- Medical Research Institute School of Medicine Wuhan University Wuhan 430071 China
| | - Peng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) and Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of Stomatology Wuhan University Wuhan 430079 China
- Medical Research Institute School of Medicine Wuhan University Wuhan 430071 China
| | - Yan Wei
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) and Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of Stomatology Wuhan University Wuhan 430079 China
- Medical Research Institute School of Medicine Wuhan University Wuhan 430071 China
| | - Kailun Shen
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) and Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of Stomatology Wuhan University Wuhan 430079 China
- Medical Research Institute School of Medicine Wuhan University Wuhan 430071 China
| | - Leyi Xiao
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) and Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of Stomatology Wuhan University Wuhan 430079 China
- Medical Research Institute School of Medicine Wuhan University Wuhan 430071 China
| | - Richard J Miron
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) and Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of Stomatology Wuhan University Wuhan 430079 China
- Medical Research Institute School of Medicine Wuhan University Wuhan 430071 China
| | - Yufeng Zhang
- State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei‐MOST) and Key Laboratory of Oral Biomedicine Ministry of Education School and Hospital of Stomatology Wuhan University Wuhan 430079 China
- Medical Research Institute School of Medicine Wuhan University Wuhan 430071 China
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37
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Stolp B, Thelen F, Ficht X, Altenburger LM, Ruef N, Inavalli VVGK, Germann P, Page N, Moalli F, Raimondi A, Keyser KA, Seyed Jafari SM, Barone F, Dettmer MS, Merkler D, Iannacone M, Sharpe J, Schlapbach C, Fackler OT, Nägerl UV, Stein JV. Salivary gland macrophages and tissue-resident CD8 + T cells cooperate for homeostatic organ surveillance. Sci Immunol 2020; 5:5/46/eaaz4371. [PMID: 32245888 DOI: 10.1126/sciimmunol.aaz4371] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Accepted: 03/10/2020] [Indexed: 01/26/2023]
Abstract
It is well established that tissue macrophages and tissue-resident memory CD8+ T cells (TRM) play important roles for pathogen sensing and rapid protection of barrier tissues. In contrast, the mechanisms by which these two cell types cooperate for homeostatic organ surveillance after clearance of infections is poorly understood. Here, we used intravital imaging to show that TRM dynamically followed tissue macrophage topology in noninflamed murine submandibular salivary glands (SMGs). Depletion of tissue macrophages interfered with SMG TRM motility and caused a reduction of interepithelial T cell crossing. In the absence of macrophages, SMG TRM failed to cluster in response to local inflammatory chemokines. A detailed analysis of the SMG microarchitecture uncovered discontinuous attachment of tissue macrophages to neighboring epithelial cells, with occasional macrophage protrusions bridging adjacent acini and ducts. When dissecting the molecular mechanisms that drive homeostatic SMG TRM motility, we found that these cells exhibit a wide range of migration modes: In addition to chemokine- and adhesion receptor-driven motility, resting SMG TRM displayed a remarkable capacity for autonomous motility in the absence of chemoattractants and adhesive ligands. Autonomous SMG TRM motility was mediated by friction and insertion of protrusions into gaps offered by the surrounding microenvironment. In sum, SMG TRM display a unique continuum of migration modes, which are supported in vivo by tissue macrophages to allow homeostatic patrolling of the complex SMG architecture.
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Affiliation(s)
- Bettina Stolp
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland.,Department for Infectious Diseases, Integrative Virology, Center for Integrative Infectious Disease Research, University Hospital Heidelberg, Im Neuenheimer Feld 344, 69120 Heidelberg, Germany
| | - Flavian Thelen
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland
| | - Xenia Ficht
- Theodor Kocher Institute, University of Bern, 3012 Bern, Switzerland
| | - Lukas M Altenburger
- Department of Oncology, Microbiology and Immunology, University of Fribourg, 1700 Fribourg, Switzerland
| | - Nora Ruef
- Department of Oncology, Microbiology and Immunology, University of Fribourg, 1700 Fribourg, Switzerland
| | - V V G Krishna Inavalli
- University of Bordeaux, 33700 Bordeaux, France.,Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33077 Bordeaux, France
| | - Philipp Germann
- EMBL Barcelona, Dr. Aiguader 88, 08003 Barcelona, Spain.,Universitat Pompeu Fabra (UPF), 08002 Barcelona, Spain
| | - Nicolas Page
- Department of Pathology and Immunology, Division of Clinical Pathology, University and University Hospitals of Geneva, 1211 Geneva, Switzerland
| | | | | | - Kirsten A Keyser
- Institute for Virology, OE5230, Hannover Medical School, Carl-Neuberg-Str. 1, 30625 Hannover, Germany
| | - S Morteza Seyed Jafari
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Francesca Barone
- Institute of Inflammation and Ageing, University of Birmingham, Birmingham, UK
| | | | - Doron Merkler
- Department of Pathology and Immunology, Division of Clinical Pathology, University and University Hospitals of Geneva, 1211 Geneva, Switzerland
| | | | - James Sharpe
- EMBL Barcelona, Dr. Aiguader 88, 08003 Barcelona, Spain.,Universitat Pompeu Fabra (UPF), 08002 Barcelona, Spain.,Institució Catalana de Recerca i Estudis Avançats (ICREA), Pg. Lluis Companys 23, 08010 Barcelona, Spain
| | - Christoph Schlapbach
- Department of Dermatology, Inselspital, Bern University Hospital, University of Bern, Bern, Switzerland
| | - Oliver T Fackler
- Department for Infectious Diseases, Integrative Virology, Center for Integrative Infectious Disease Research, University Hospital Heidelberg, Im Neuenheimer Feld 344, 69120 Heidelberg, Germany
| | - U Valentin Nägerl
- University of Bordeaux, 33700 Bordeaux, France.,Interdisciplinary Institute for Neuroscience, CNRS UMR 5297, 33077 Bordeaux, France
| | - Jens V Stein
- Department of Oncology, Microbiology and Immunology, University of Fribourg, 1700 Fribourg, Switzerland.
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38
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Puiffe ML, Dupont A, Sako N, Gatineau J, Cohen JL, Mestivier D, Lebon A, Prévost-Blondel A, Castellano F, Molinier-Frenkel V. IL4I1 Accelerates the Expansion of Effector CD8 + T Cells at the Expense of Memory Precursors by Increasing the Threshold of T-Cell Activation. Front Immunol 2020; 11:600012. [PMID: 33343572 PMCID: PMC7746639 DOI: 10.3389/fimmu.2020.600012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 11/03/2020] [Indexed: 12/25/2022] Open
Abstract
IL4I1 is an immunoregulatory enzyme that inhibits CD8 T-cell proliferation in vitro and in the tumoral context. Here, we dissected the effect of IL4I1 on CD8 T-cell priming by studying the differentiation of a transgenic CD8 T-cell clone and the endogenous repertoire in a mouse model of acute lymphocytic choriomeningitis virus (LCMV) infection. Unexpectedly, we show that IL4I1 accelerates the expansion of functional effector CD8 T cells during the first several days after infection and increases the average affinity of the elicited repertoire, supporting more efficient LCMV clearance in WT mice than IL4I1-deficient mice. Conversely, IL4I1 restrains the differentiation of CD8 T-cells into long-lived memory precursors and favors the memory response to the most immunodominant peptides. IL4I1 expression does not affect the phenotype or antigen-presenting functions of dendritic cells (DCs), but directly reduces the stability of T-DC immune synapses in vitro, thus dampening T-cell activation. Overall, our results support a model in which IL4I1 increases the threshold of T-cell activation, indirectly promoting the priming of high-affinity clones while limiting memory T-cell differentiation.
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Affiliation(s)
- Marie-Line Puiffe
- Virus-Immunity-Cancer Department, Institut Mondor de Recherche Biomédicale (IMRB), INSERM U955, Université Paris-Est Créteil, Créteil, France
| | - Aurélie Dupont
- Virus-Immunity-Cancer Department, Institut Mondor de Recherche Biomédicale (IMRB), INSERM U955, Université Paris-Est Créteil, Créteil, France
| | - Nouhoum Sako
- Virus-Immunity-Cancer Department, Institut Mondor de Recherche Biomédicale (IMRB), INSERM U955, Université Paris-Est Créteil, Créteil, France
| | - Jérôme Gatineau
- Virus-Immunity-Cancer Department, Institut Mondor de Recherche Biomédicale (IMRB), INSERM U955, Université Paris-Est Créteil, Créteil, France
| | - José L Cohen
- Virus-Immunity-Cancer Department, Institut Mondor de Recherche Biomédicale (IMRB), INSERM U955, Université Paris-Est Créteil, Créteil, France
| | - Denis Mestivier
- Bioinformatics Core Laboratory, Institut Mondor de Recherche Biomédicale (IMRB), INSERM U955, Université Paris-Est Créteil, Créteil, France
| | - Agnès Lebon
- INSERM U1016, CNRS UMR8104, Institut Cochin, Université de Paris, Paris, France
| | | | - Flavia Castellano
- Virus-Immunity-Cancer Department, Institut Mondor de Recherche Biomédicale (IMRB), INSERM U955, Université Paris-Est Créteil, Créteil, France.,Pathobiology Department, Groupe Hospitalo-Universitaire Chenevier-Mondor, AP-HP, Créteil, France
| | - Valérie Molinier-Frenkel
- Virus-Immunity-Cancer Department, Institut Mondor de Recherche Biomédicale (IMRB), INSERM U955, Université Paris-Est Créteil, Créteil, France.,Pathobiology Department, Groupe Hospitalo-Universitaire Chenevier-Mondor, AP-HP, Créteil, France
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39
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Sanz-Ortega L, Rojas JM, Barber DF. Improving Tumor Retention of Effector Cells in Adoptive Cell Transfer Therapies by Magnetic Targeting. Pharmaceutics 2020; 12:E812. [PMID: 32867162 PMCID: PMC7557387 DOI: 10.3390/pharmaceutics12090812] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/19/2020] [Accepted: 08/24/2020] [Indexed: 02/07/2023] Open
Abstract
Adoptive cell transfer therapy is a promising anti-tumor immunotherapy in which effector immune cells are transferred to patients to treat tumors. However, one of its main limitations is the inefficient trafficking of inoculated effector cells to the tumor site and the small percentage of effector cells that remain activated when reaching the tumor. Multiple strategies have been attempted to improve the entry of effector cells into the tumor environment, often based on tumor types. It would be, however, interesting to develop a more general approach, to improve and facilitate the migration of specific activated effector lymphoid cells to any tumor type. We and others have recently demonstrated the potential for adoptive cell transfer therapy of the combined use of magnetic nanoparticle-loaded lymphoid effector cells together with the application of an external magnetic field to promote the accumulation and retention of lymphoid cells in specific body locations. The aim of this review is to summarize and highlight the recent findings in the field of magnetic accumulation and retention of effector cells in tumors after adoptive transfer, and to discuss the possibility of using this approach for tumor targeting with chimeric antigen receptor (CAR) T-cells.
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Affiliation(s)
- Laura Sanz-Ortega
- Center for Hematology and Regenerative Medicine (HERM), Department of Medicine, Karolinska Institute, 14183 Stockholm, Sweden;
| | - José Manuel Rojas
- Animal Health Research Centre (CISA)-INIA, Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, 28130 Madrid, Spain;
| | - Domingo F. Barber
- Department of Immunology and Oncology, and NanoBiomedicine Initiative, Centro Nacional de Biotecnología (CNB)-CSIC, 28049 Madrid, Spain
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40
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Gómez-Gaviro MV, Sanderson D, Ripoll J, Desco M. Biomedical Applications of Tissue Clearing and Three-Dimensional Imaging in Health and Disease. iScience 2020; 23:101432. [PMID: 32805648 PMCID: PMC7452225 DOI: 10.1016/j.isci.2020.101432] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 07/29/2020] [Accepted: 07/30/2020] [Indexed: 12/27/2022] Open
Abstract
Three-dimensional (3D) optical imaging techniques can expand our knowledge about physiological and pathological processes that cannot be fully understood with 2D approaches. Standard diagnostic tests frequently are not sufficient to unequivocally determine the presence of a pathological condition. Whole-organ optical imaging requires tissue transparency, which can be achieved by using tissue clearing procedures enabling deeper image acquisition and therefore making possible the analysis of large-scale biological tissue samples. Here, we review currently available clearing agents, methods, and their application in imaging of physiological or pathological conditions in different animal and human organs. We also compare different optical tissue clearing methods discussing their advantages and disadvantages and review the use of different 3D imaging techniques for the visualization and image acquisition of cleared tissues. The use of optical tissue clearing resources for large-scale biological tissues 3D imaging paves the way for future applications in translational and clinical research.
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Affiliation(s)
- Maria Victoria Gómez-Gaviro
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain; Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain.
| | - Daniel Sanderson
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain
| | - Jorge Ripoll
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain
| | - Manuel Desco
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain; Centro de Investigación Biomédica en Red de Salud Mental (CIBERSAM), Madrid, Spain; Departamento de Bioingeniería e Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain; Centro Nacional de Investigaciones Cardiovasculares Carlos III, Madrid, Spain
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41
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Abu-Shah E, Trendel N, Kruger P, Nguyen J, Pettmann J, Kutuzov M, Dushek O. Human CD8 + T Cells Exhibit a Shared Antigen Threshold for Different Effector Responses. THE JOURNAL OF IMMUNOLOGY 2020; 205:1503-1512. [PMID: 32817332 PMCID: PMC7477745 DOI: 10.4049/jimmunol.2000525] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 07/21/2020] [Indexed: 12/21/2022]
Abstract
CD8+ T cells produce TNF-α, IL-2, and IFN-γ with similar Ag thresholds. Costimulation decreases Ag thresholds similarly for different cytokines. A common rate-limiting switch downstream of the TCR can explain these findings.
T cells recognizing cognate pMHC Ags become activated to elicit a myriad of cellular responses, such as target cell killing and the secretion of different cytokines, that collectively contribute to adaptive immunity. These effector responses have been hypothesized to exhibit different Ag dose and affinity thresholds, suggesting that pathogen-specific information may be encoded within the nature of the Ag. In this study, using systematic experiments in a reductionist system, in which primary human CD8+ T cell blasts are stimulated by recombinant peptides presented on MHC Ag alone, we show that different inflammatory cytokines have comparable Ag dose thresholds across a 25,000-fold variation in affinity. Although costimulation by CD28, CD2, and CD27 increased cytokine production in this system, the Ag threshold remained comparable across different cytokines. When using primary human memory CD8+ T cells responding to autologous APCs, equivalent thresholds were also observed for different cytokines and killing. These findings imply a simple phenotypic model of TCR signaling in which multiple T cell responses share a common rate-limiting threshold and a conceptually simple model of CD8+ T cell Ag recognition, in which Ag dose and affinity do not provide any additional response-specific information.
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Affiliation(s)
- Enas Abu-Shah
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom; and.,Kennedy Institute of Rheumatology, University of Oxford, Oxford OX3 7FY, United Kingdom
| | - Nicola Trendel
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom; and
| | - Philipp Kruger
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom; and
| | - John Nguyen
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom; and
| | - Johannes Pettmann
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom; and
| | - Mikhail Kutuzov
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom; and
| | - Omer Dushek
- Sir William Dunn School of Pathology, University of Oxford, Oxford OX1 3RE, United Kingdom; and
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42
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Thelen F, Witherden DA. Get in Touch With Dendritic Epithelial T Cells! Front Immunol 2020; 11:1656. [PMID: 32849572 PMCID: PMC7403176 DOI: 10.3389/fimmu.2020.01656] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2020] [Accepted: 06/22/2020] [Indexed: 12/11/2022] Open
Abstract
Innate and adaptive immune systems continuously interchange information and orchestrate their immune responses to protect the host. γδT cells play crucial roles, as they incorporate both innate and adaptive immune characteristics. Dendritic epidermal T cells (DETC) are specialized γδT cells, which are uniquely positioned to rapidly respond to skin wounds and infections. Their elongated dendrite morphology allows them to be in continuous contact with multiple neighboring keratinocytes and Langerhans cells. Cellular interactions are fundamental to the formation, activation and maintenance of immune cell functions during steady state and pathology. Recent technological advances, especially in the field of cellular imaging, have contributed greatly to the characterization of complex cellular interactions in a spatiotemporally resolved manner. In this review, we will highlight the often-underappreciated function of DETC and other γδT cells during steady state and an ongoing immune response. More specifically, we discuss how DETC-precursors are shaped in the fetal thymus during embryogenesis as well as how direct cell-cell interactions of DETC with neighboring epidermal cells shape skin homeostasis and effector functions. Furthermore, we will discuss seminal work and recent discoveries made in the γδT cell field, which have highlighted the importance of γδT cells in the skin, both in humans and mice.
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Affiliation(s)
- Flavian Thelen
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, United States
| | - Deborah A Witherden
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, United States
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43
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Assessment of TCR signal strength of antigen-specific memory CD8 + T cells in human blood. Blood Adv 2020; 3:2153-2163. [PMID: 31320320 DOI: 10.1182/bloodadvances.2019000292] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 05/24/2019] [Indexed: 02/07/2023] Open
Abstract
Assessment of the quality and the breadth of antigen (Ag)-specific memory T cells in human samples is of paramount importance to elucidate the pathogenesis and to develop new treatments in various diseases. T-cell receptor (TCR) signal strength, primarily controlled by TCR affinity, affects many fundamental aspects of T-cell biology; however, no current assays for detection of Ag-specific CD8+ T cells can assess their TCR signal strength in human samples. Here, we provide evidence that interferon regulatory factor 4 (IRF4), a transcription factor rapidly upregulated in correlation with TCR signal strength, permits the assessment of the TCR signal strength of Ag-specific CD8+ T cells in human peripheral blood mononuclear cells (PBMCs). Coexpression of IRF4 and CD137 sensitively detected peptide-specific CD8+ T cells with extremely low background in PBMCs stimulated for 18 hours with MHC class I peptides. Our assay revealed that human memory CD8+ T cells with high-affinity TCRs have an intrinsic ability to highly express CD25. Furthermore, HIV-specific CD8+ T cells in chronic HIV+ subjects were found to display primarily low-affinity TCRs with low CD25 expression capacity. Impairment in the functions of HIV-specific CD8+ T cells might be associated with their suboptimal TCR signals, as well as impaired responsiveness to interleukin-2.
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IRAP-dependent endosomal T cell receptor signalling is essential for T cell responses. Nat Commun 2020; 11:2779. [PMID: 32487999 PMCID: PMC7265453 DOI: 10.1038/s41467-020-16471-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 05/03/2020] [Indexed: 11/09/2022] Open
Abstract
T cell receptor (TCR) activation is modulated by mechanisms such as TCR endocytosis, which is thought to terminate TCR signalling. Here we show that, upon internalization, TCR continues to signal from a set of specialized endosomes that are crucial for T cell functions. Mechanistically, TCR ligation leads to clathrin-mediated internalization of the TCR-CD3ζ complex, while maintaining CD3ζ signalling, in endosomal vesicles that contain the insulin responsive aminopeptidase (IRAP) and the SNARE protein Syntaxin 6. Destabilization of this compartment through IRAP deletion enhances plasma membrane expression of the TCR-CD3ζ complex, yet compromises overall CD3ζ signalling; moreover, the integrity of this compartment is also crucial for T cell activation and survival after suboptimal TCR activation, as mice engineered with a T cell-specific deletion of IRAP fail to develop efficient polyclonal anti-tumour responses. Our results thus reveal a previously unappreciated function of IRAP-dependent endosomal TCR signalling in T cell activation. T cell receptors (TCR) are internalized when activated by their ligands. Here the authors show that the internalized TCRs are localized to endosomes expressing IRAP and Syntaxin 6 to maintain intracellular signalling capacity, whose importance is shown by the absence of efficient polyclonal anti-tumour response in mice with T-specific conditional deletion of IRAP.
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Bhattacharyya ND, Feng CG. Regulation of T Helper Cell Fate by TCR Signal Strength. Front Immunol 2020; 11:624. [PMID: 32508803 PMCID: PMC7248325 DOI: 10.3389/fimmu.2020.00624] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Accepted: 03/19/2020] [Indexed: 12/16/2022] Open
Abstract
T cells are critical in orchestrating protective immune responses to cancer and an array of pathogens. The interaction between a peptide MHC (pMHC) complex on antigen presenting cells (APCs) and T cell receptors (TCRs) on T cells initiates T cell activation, division, and clonal expansion in secondary lymphoid organs. T cells must also integrate multiple T cell-intrinsic and extrinsic signals to acquire the effector functions essential for the defense against invading microbes. In the case of T helper cell differentiation, while innate cytokines have been demonstrated to shape effector CD4+ T lymphocyte function, the contribution of TCR signaling strength to T helper cell differentiation is less understood. In this review, we summarize the signaling cascades regulated by the strength of TCR stimulation. Various mechanisms in which TCR signal strength controls T helper cell expansion and differentiation are also discussed.
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Affiliation(s)
- Nayan D Bhattacharyya
- Immunology and Host Defense Group, Discipline of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Tuberculosis Research Program, Centenary Institute, The University of Sydney, Sydney, NSW, Australia
| | - Carl G Feng
- Immunology and Host Defense Group, Discipline of Infectious Diseases and Immunology, School of Medical Sciences, Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,Tuberculosis Research Program, Centenary Institute, The University of Sydney, Sydney, NSW, Australia
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Ma CY, Marioni JC, Griffiths GM, Richard AC. Stimulation strength controls the rate of initiation but not the molecular organisation of TCR-induced signalling. eLife 2020; 9:e53948. [PMID: 32412411 PMCID: PMC7308083 DOI: 10.7554/elife.53948] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Accepted: 05/14/2020] [Indexed: 12/13/2022] Open
Abstract
Millions of naïve T cells with different TCRs may interact with a peptide-MHC ligand, but very few will activate. Remarkably, this fine control is orchestrated using a limited set of intracellular machinery. It remains unclear whether changes in stimulation strength alter the programme of signalling events leading to T cell activation. Using mass cytometry to simultaneously measure multiple signalling pathways during activation of murine CD8+ T cells, we found a programme of distal signalling events that is shared, regardless of the strength of TCR stimulation. Moreover, the relationship between transcription of early response genes Nr4a1 and Irf8 and activation of the ribosomal protein S6 is also conserved across stimuli. Instead, we found that stimulation strength dictates the rate with which cells initiate signalling through this network. These data suggest that TCR-induced signalling results in a coordinated activation program, modulated in rate but not organization by stimulation strength.
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MESH Headings
- Animals
- CD8-Positive T-Lymphocytes/drug effects
- CD8-Positive T-Lymphocytes/immunology
- CD8-Positive T-Lymphocytes/metabolism
- Cells, Cultured
- Female
- Flow Cytometry
- Interferon Regulatory Factors/genetics
- Interferon Regulatory Factors/metabolism
- Kinetics
- Ligands
- Lymphocyte Activation/drug effects
- Male
- Mice, Inbred C57BL
- Mice, Transgenic
- Nuclear Receptor Subfamily 4, Group A, Member 1/genetics
- Nuclear Receptor Subfamily 4, Group A, Member 1/metabolism
- Ovalbumin/pharmacology
- Peptide Fragments/pharmacology
- Phosphorylation
- Receptors, Antigen, T-Cell/agonists
- Receptors, Antigen, T-Cell/metabolism
- Ribosomal Protein S6/metabolism
- Signal Transduction/drug effects
- Single-Cell Analysis
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Affiliation(s)
- Claire Y Ma
- Cambridge Institute for Medical Research, University of CambridgeCambridgeUnited Kingdom
| | - John C Marioni
- Cancer Research UK Cambridge Institute, University of CambridgeCambridgeUnited Kingdom
- EMBL-European Bioinformatics Institute, Wellcome Genome CampusCambridgeUnited Kingdom
- Wellcome Sanger Institute, Wellcome Genome CampusCambridgeUnited Kingdom
| | - Gillian M Griffiths
- Cambridge Institute for Medical Research, University of CambridgeCambridgeUnited Kingdom
| | - Arianne C Richard
- Cambridge Institute for Medical Research, University of CambridgeCambridgeUnited Kingdom
- Cancer Research UK Cambridge Institute, University of CambridgeCambridgeUnited Kingdom
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47
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Eomes broadens the scope of CD8 T-cell memory by inhibiting apoptosis in cells of low affinity. PLoS Biol 2020; 18:e3000648. [PMID: 32182234 PMCID: PMC7077837 DOI: 10.1371/journal.pbio.3000648] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2019] [Accepted: 02/10/2020] [Indexed: 12/16/2022] Open
Abstract
The memory CD8 T-cell pool must select for clones that bind immunodominant epitopes with high affinity to efficiently counter reinfection. At the same time, it must retain a level of clonal diversity to allow recognition of pathogens with mutated epitopes. How the level of diversity within the memory pool is controlled is unclear, especially in the context of a selective drive for antigen affinity. We find that preservation of clones that bind the activating antigen with low affinity depends on expression of the transcription factor Eomes in the first days after antigen encounter. Eomes is induced at low activating signal strength and directly drives transcription of the prosurvival protein Bcl-2. At higher signal intensity, T-bet is induced which suppresses Bcl-2 and causes a relative survival advantage for cells of low affinity. Clones activated with high-affinity antigen form memory largely independent of Eomes and have a proliferative advantage over clones that bind the same antigen with low affinity. This causes high-affinity clones to prevail in the memory pool, despite their relative survival deficit. Genetic or therapeutic targeting of the Eomes/Bcl-2 axis reduces the clonal diversity of the memory pool, which diminishes its ability to respond to pathogens carrying mutations in immunodominant epitopes. Thus, we demonstrate on a molecular level how sufficient diversity of the memory pool is established in an environment of affinity-based selection. This study shows that the diversity of the memory CD8 T-cell pool is regulated by the transcription factor Eomes, which drives transcription of the pro-survival protein Bcl-2. Genetic or therapeutic targeting of the Eomes/Bcl-2 axis reduces the clonal diversity of the memory pool.
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48
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Matryba P, Sosnowska A, Wolny A, Bozycki L, Greig A, Grzybowski J, Stefaniuk M, Nowis D, Gołąb J. Systematic Evaluation of Chemically Distinct Tissue Optical Clearing Techniques in Murine Lymph Nodes. THE JOURNAL OF IMMUNOLOGY 2020; 204:1395-1407. [PMID: 31953352 DOI: 10.4049/jimmunol.1900847] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 12/17/2019] [Indexed: 12/14/2022]
Abstract
Activation of adaptive immunity is a complex process coordinated at multiple levels in both time and the three-dimensional context of reactive lymph nodes (LNs). Although microscopy-based visualization of its spatiotemporal dynamics unravels complexities of developing immune response, such approach is highly limited by light-obstructing nature of tissue components. Recently, tissue optical clearing (TOC) techniques were established to bypass this obstacle and now allow to image and quantify the entire murine organs with cellular resolution. However, the spectrum of TOC is represented by wide variety of chemically distinct methods, each having certain advantages and disadvantages that were unsatisfactorily compared for suitability to LNs clearing. In this study, we have systematically tested 13 typical TOC techniques and assessed their impact on a number of critical factors such as LN transparency, imaging depth, change in size, compatibility with proteinaceous fluorophores, immunostaining, H&E staining, and light-sheet fluorescence microscopy. Based on the detailed data specific to TOC process of murine LNs, we provide a reliable reference for most suitable methods in an application-dependent manner.
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Affiliation(s)
- Paweł Matryba
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland; .,Laboratory of Neurobiology, BRAINCITY, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Anna Sosnowska
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland.,Postgraduate School of Molecular Medicine, Medical University of Warsaw, 02-091 Warsaw, Poland
| | - Artur Wolny
- Laboratory of Imaging Tissue Structure and Function, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Lukasz Bozycki
- Laboratory of Biochemistry of Lipids, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Alan Greig
- Department of Cell and Developmental Biology, Division of Biosciences, University College London, London WC1 6DE, United Kingdom
| | - Jakub Grzybowski
- Department of Pathology, Medical University of Warsaw, 02-004 Warsaw, Poland
| | - Marzena Stefaniuk
- Laboratory of Neurobiology, BRAINCITY, Nencki Institute of Experimental Biology of Polish Academy of Sciences, 02-093 Warsaw, Poland
| | - Dominika Nowis
- Department of Genomic Medicine, Medical University of Warsaw, 02-097 Warsaw, Poland; and.,Laboratory of Experimental Medicine, Centre of New Technologies, University of Warsaw, 02-097 Warsaw, Poland
| | - Jakub Gołąb
- Department of Immunology, Medical University of Warsaw, 02-097 Warsaw, Poland;
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Stein JV, Ruef N. Regulation of global CD8 + T-cell positioning by the actomyosin cytoskeleton. Immunol Rev 2020; 289:232-249. [PMID: 30977193 DOI: 10.1111/imr.12759] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/04/2019] [Accepted: 02/06/2019] [Indexed: 12/12/2022]
Abstract
CD8+ T cells have evolved as one of the most motile mammalian cell types, designed to continuously scan peptide-major histocompatibility complexes class I on the surfaces of other cells. Chemoattractants and adhesion molecules direct CD8+ T-cell homing to and migration within secondary lymphoid organs, where these cells colocalize with antigen-presenting dendritic cells in confined tissue volumes. CD8+ T-cell activation induces a switch to infiltration of non-lymphoid tissue (NLT), which differ in their topology and biophysical properties from lymphoid tissue. Here, we provide a short overview on regulation of organism-wide trafficking patterns during naive T-cell recirculation and their switch to non-lymphoid tissue homing during activation. The migratory lifestyle of CD8+ T cells is regulated by their actomyosin cytoskeleton, which translates chemical signals from surface receptors into mechanical work. We explore how properties of the actomyosin cytoskeleton and its regulators affect CD8+ T cell function in lymphoid and non-lymphoid tissue, combining recent findings in the field of cell migration and actin network regulation with tissue anatomy. Finally, we hypothesize that under certain conditions, intrinsic regulation of actomyosin dynamics may render NLT CD8+ T-cell populations less dependent on input from extrinsic signals during tissue scanning.
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Affiliation(s)
- Jens V Stein
- Department of Oncology, Microbiology and Immunology, University of Fribourg, Fribourg, Switzerland
| | - Nora Ruef
- Department of Oncology, Microbiology and Immunology, University of Fribourg, Fribourg, Switzerland
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50
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Groom JR. Regulators of T-cell fate: Integration of cell migration, differentiation and function. Immunol Rev 2020; 289:101-114. [PMID: 30977199 DOI: 10.1111/imr.12742] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2019] [Revised: 01/21/2019] [Accepted: 01/22/2019] [Indexed: 12/24/2022]
Abstract
A fundamental question in immunology is how cells decide between distinct T helper, effector or memory differentiation fates. These decisions are paramount to overcome infection and establish long-lasting protection. The impact of cell location for the determination of T-cell fate decisions is an emerging field. This review will discuss our current understanding of the migration path that T cells follow, within draining lymph nodes, to steer differentiation down distinct paths of either effector or memory fates. In particular, the regulation of migration and cellular encounters mediated by the chemokine receptor CXCR3 and its ligands will be discussed. The combination of increased antigen density and unique cellular partners play a central role in facilitating the site-specific differentiation of effector T cells, within the interfollicular regions of draining lymph nodes. Recent advances have applied this knowledge to optimize vaccine design to target antigen to lymph nodes. Increased understanding of the regulation of CXCR3 ligands and how T cells integrate multiple chemokine cues will help further progress in this field and allow additional applications to direct cell differentiation outside the lymph node, to enhance memory residency in peripheral tissues and effector anti-tumor responses.
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Affiliation(s)
- Joanna R Groom
- Division of Immunology, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
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