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Liang C, Spoerl S, Xiao Y, Habenicht KM, Haeusl SS, Sandner I, Winkler J, Strieder N, Eder R, Stanewsky H, Alexiou C, Dudziak D, Rosenwald A, Edinger M, Rehli M, Hoffmann P, Winkler TH, Berberich-Siebelt F. Oligoclonal CD4 +CXCR5 + T cells with a cytotoxic phenotype appear in tonsils and blood. Commun Biol 2024; 7:879. [PMID: 39025930 PMCID: PMC11258247 DOI: 10.1038/s42003-024-06563-1] [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: 09/15/2023] [Accepted: 07/05/2024] [Indexed: 07/20/2024] Open
Abstract
In clinical situations, peripheral blood accessible CD3+CD4+CXCR5+ T-follicular helper (TFH) cells may have to serve as a surrogate indicator for dysregulated germinal center responses in tissues. To determine the heterogeneity of TFH cells in peripheral blood versus tonsils, CD3+CD4+CD45RA-CXCR5+ cells of both origins were sorted. Transcriptomes, TCR repertoires and cell-surface protein expression were analysed by single-cell RNA sequencing, flow cytometry and immunohistochemistry. Reassuringly, all blood-circulating CD3+CD4+CXCR5+ T-cell subpopulations also appear in tonsils, there with some supplementary TFH characteristics, while peripheral blood-derived TFH cells display markers of proliferation and migration. Three further subsets of TFH cells, however, with bona fide T-follicular gene expression patterns, are exclusively found in tonsils. One additional, distinct and oligoclonal CD4+CXCR5+ subpopulation presents pronounced cytotoxic properties. Those 'killer TFH (TFK) cells' can be discovered in peripheral blood as well as among tonsillar cells but are located predominantly outside of germinal centers. They appear terminally differentiated and can be distinguished from all other TFH subsets by expression of NKG7 (TIA-1), granzymes, perforin, CCL5, CCR5, EOMES, CRTAM and CX3CR1. All in all, this study provides data for detailed CD4+CXCR5+ T-cell assessment of clinically available blood samples and extrapolation possibilities to their tonsil counterparts.
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Affiliation(s)
- Chunguang Liang
- Functional Genomics and Systems Biology Group, Department of Bioinformatics, Biocenter, Julius-Maximilians-University Würzburg, Würzburg, Germany
- Institute of Immunology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Silvia Spoerl
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Yin Xiao
- Institute of Pathology, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Katharina M Habenicht
- Division of Genetics, Department Biology, Nikolaus-Fiebiger-Center of Molecular Medicine, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Sigrun S Haeusl
- Institute of Pathology, Julius-Maximilians-University Würzburg, Würzburg, Germany
| | - Isabel Sandner
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | - Julia Winkler
- Department of Internal Medicine 5, Hematology/Oncology, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Comprehensive Cancer Center Erlangen-EMN, Erlangen, Germany
| | | | - Rüdiger Eder
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | | | - Christoph Alexiou
- Department of Otorhinolaryngology, Head & Neck Surgery, Else Kröner-Fresenius-Foundation-Professorship, Section of Experimental Oncology & Nanomedicine (SEON), University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | - Diana Dudziak
- Laboratory of Dendritic Cell Biology, Department of Dermatology, University Hospital Erlangen, Friedrich-Alexander University of Erlangen-Nürnberg, Erlangen, Germany
- Institute of Immunology, Jena University Hospital, Friedrich-Schiller-University, Jena, Germany
| | - Andreas Rosenwald
- Institute of Pathology, Julius-Maximilians-University Würzburg, Würzburg, Germany
- Comprehensive Cancer Centre Mainfranken, Julius-Maximilians-University of Würzburg, Würzburg, Germany
| | - Matthias Edinger
- Leibniz Institute for Immunotherapy, Regensburg, Germany
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Michael Rehli
- Leibniz Institute for Immunotherapy, Regensburg, Germany
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Petra Hoffmann
- Leibniz Institute for Immunotherapy, Regensburg, Germany
- Department of Internal Medicine III, University Hospital Regensburg, Regensburg, Germany
| | - Thomas H Winkler
- Division of Genetics, Department Biology, Nikolaus-Fiebiger-Center of Molecular Medicine, Friedrich-Alexander University Erlangen-Nürnberg, Erlangen, Germany
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Li Y, Xiao J, Li C, Yang M. Memory inflation: Beyond the acute phase of viral infection. Cell Prolif 2024:e13705. [PMID: 38992867 DOI: 10.1111/cpr.13705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2024] [Revised: 06/09/2024] [Accepted: 06/14/2024] [Indexed: 07/13/2024] Open
Abstract
Memory inflation is confirmed as the most commonly dysregulation of host immunity with antigen-independent manner in mammals after viral infection. By generating large numbers of effector/memory and terminal differentiated effector memory CD8+ T cells with diminished naïve subsets, memory inflation is believed to play critical roles in connecting the viral infection and the onset of multiple diseases. Here, we reviewed the current understanding of memory inflated CD8+ T cells in their distinct phenotypic features that different from exhausted subsets; the intrinsic and extrinsic roles in regulating the formation of memory inflation; and the key proteins in maintaining the expansion and proliferation of inflationary populations. More importantly, based on the evidences from both clinic and animal models, we summarized the potential mechanisms of memory inflation to trigger autoimmune neuropathies, such as Guillain-Barré syndrome and multiple sclerosis; the correlations of memory inflation between tumorigenesis and resistance of tumour immunotherapies; as well as the effects of memory inflation to facilitate vascular disease progression. To sum up, better understanding of memory inflation could provide us an opportunity to beyond the acute phase of viral infection, and shed a light on the long-term influences of CD8+ T cell heterogeneity in dampen host immune homeostasis.
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Affiliation(s)
- Yanfei Li
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jie Xiao
- Centre for Translational Research in Cancer, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Chen Li
- Centre for Translational Research in Cancer, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
| | - Mu Yang
- School of Basic Medical Sciences, Chengdu University of Traditional Chinese Medicine, Chengdu, China
- Centre for Translational Research in Cancer, Sichuan Cancer Hospital and Institute, Sichuan Cancer Center, School of Medicine, University of Electronic Science and Technology of China, Chengdu, China
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3
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Yared N, Papadopoulou M, Barennes P, Pham HP, Quiniou V, Netzer S, Kaminski H, Burguet L, Demeste A, Colas P, Mora-Charrot L, Rousseau B, Izotte J, Zouine A, Gauthereau X, Vermijlen D, Déchanet-Merville J, Capone M. Long-lived central memory γδ T cells confer protection against murine cytomegalovirus reinfection. PLoS Pathog 2024; 20:e1010785. [PMID: 38976755 PMCID: PMC11257398 DOI: 10.1371/journal.ppat.1010785] [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: 08/04/2022] [Revised: 07/18/2024] [Accepted: 06/12/2024] [Indexed: 07/10/2024] Open
Abstract
The involvement of γδ TCR-bearing lymphocytes in immunological memory has gained increasing interest due to their functional duality between adaptive and innate immunity. γδ T effector memory (TEM) and central memory (TCM) subsets have been identified, but their respective roles in memory responses are poorly understood. In the present study, we used subsequent mouse cytomegalovirus (MCMV) infections of αβ T cell deficient mice in order to analyze the memory potential of γδ T cells. As for CMV-specific αβ T cells, MCMV induced the accumulation of cytolytic, KLRG1+CX3CR1+ γδ TEM that principally localized in infected organ vasculature. Typifying T cell memory, γδ T cell expansion in organs and blood was higher after secondary viral challenge than after primary infection. Viral control upon MCMV reinfection was prevented when masking γδ T-cell receptor, and was associated with a preferential amplification of private and unfocused TCR δ chain repertoire composed of a combination of clonotypes expanded post-primary infection and, more unexpectedly, of novel expanded clonotypes. Finally, long-term-primed γδ TCM cells, but not γδ TEM cells, protected T cell-deficient hosts against MCMV-induced death upon adoptive transfer, probably through their ability to survive and to generate TEM in the recipient host. This better survival potential of TCM cells was confirmed by a detailed scRNASeq analysis of the two γδ T cell memory subsets which also revealed their similarity to classically adaptive αβ CD8 T cells. Overall, our study uncovered memory properties of long-lived TCM γδ T cells that confer protection in a chronic infection, highlighting the interest of this T cell subset in vaccination approaches.
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Affiliation(s)
- Nathalie Yared
- Bordeaux University, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, ImmunoConcEpt, UMR 5164, ERL 1303, ImmunoConcEpt, Bordeaux, France
| | - Maria Papadopoulou
- Department of Pharmacotherapy and Pharmaceutics, Université Libre de Bruxelles (ULB), Brussels, Belgium
- Institute for Medical Immunology, Université Libre de Bruxelles (ULB), Gosselies, Belgium
- Université Libre de Bruxelles Center for Research in Immunology, Université Libre de Bruxelles (ULB), Brussels, Belgium
| | | | | | | | - Sonia Netzer
- Bordeaux University, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, ImmunoConcEpt, UMR 5164, ERL 1303, ImmunoConcEpt, Bordeaux, France
| | - Hanna Kaminski
- Bordeaux University, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, ImmunoConcEpt, UMR 5164, ERL 1303, ImmunoConcEpt, Bordeaux, France
| | - Laure Burguet
- Bordeaux University, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, ImmunoConcEpt, UMR 5164, ERL 1303, ImmunoConcEpt, Bordeaux, France
| | - Amandine Demeste
- Bordeaux University, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, ImmunoConcEpt, UMR 5164, ERL 1303, ImmunoConcEpt, Bordeaux, France
| | - Pacôme Colas
- Bordeaux University, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, ImmunoConcEpt, UMR 5164, ERL 1303, ImmunoConcEpt, Bordeaux, France
| | - Lea Mora-Charrot
- Bordeaux University, Service Commun des Animaleries, Bordeaux, France
| | - Benoit Rousseau
- Bordeaux University, Service Commun des Animaleries, Bordeaux, France
| | - Julien Izotte
- Bordeaux University, Service Commun des Animaleries, Bordeaux, France
| | - Atika Zouine
- Bordeaux University, Centre National de la Recherche Scientifique, Institut national de la santé et de la recherche médicale, FACSility, TBM Core, Bordeaux, France
| | - Xavier Gauthereau
- Bordeaux University, Centre National de la Recherche Scientifique, Institut national de la santé et de la recherche médicale, OneCell, RT-PCR and Single Cell Libraries, TBM Core, Bordeaux, France
| | - David Vermijlen
- Department of Pharmacotherapy and Pharmaceutics, Université Libre de Bruxelles (ULB), Brussels, Belgium
- Institute for Medical Immunology, Université Libre de Bruxelles (ULB), Gosselies, Belgium
- Université Libre de Bruxelles Center for Research in Immunology, Université Libre de Bruxelles (ULB), Brussels, Belgium
- WELBIO department, Walloon ExceLlence Research Institute, Wavre, Belgium
| | - Julie Déchanet-Merville
- Bordeaux University, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, ImmunoConcEpt, UMR 5164, ERL 1303, ImmunoConcEpt, Bordeaux, France
| | - Myriam Capone
- Bordeaux University, Centre National de la Recherche Scientifique, Institut National de la Santé et de la Recherche Médicale, ImmunoConcEpt, UMR 5164, ERL 1303, ImmunoConcEpt, Bordeaux, France
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Chebly A, Khalil C, Kuzyk A, Beylot-Barry M, Chevret E. T-cell lymphocytes' aging clock: telomeres, telomerase and aging. Biogerontology 2024; 25:279-288. [PMID: 37917220 DOI: 10.1007/s10522-023-10075-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/13/2023] [Indexed: 11/04/2023]
Abstract
Aging is the decline of physiological capabilities required for life maintenance and reproduction over time. The human immune cells, including T-cells lymphocytes, undergo dramatic aging-related changes, including those related to telomeres and telomerase. It was demonstrated that telomeres and telomerase play crucial roles in T-cell differentiation, aging, and diseases, including a well-documented link between short telomeres and telomerase activation demonstrated in several T-cells malignancies. Herein, we provide a comprehensive review of the literature regarding T-cells' telomeres and telomerase in health and age related-diseases.
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Affiliation(s)
- Alain Chebly
- Jacques Loiselet Center for Medical Genetics and Genomics (CGGM), Faculty of Medicine, Saint Joseph University, Beirut, Lebanon.
- Higher Institute of Public Health, Saint Joseph University, Beirut, Lebanon.
| | - Charbel Khalil
- Reviva Stem Cell Platform for Research and Applications Center, Bsalim, Lebanon
- Bone Marrow Transplant Unit, Burjeel Medical City, Abu Dhabi, United Arab Emirates
- Lebanese American University School of Medicine, Beirut, Lebanon
| | - Alexandra Kuzyk
- Division of Dermatology, Department of Internal Medicine, University of Calgary, Calgary, AB, Canada
| | - Marie Beylot-Barry
- Dermatology Department, Bordeaux University Hospital, Bordeaux, France
- Univ. Bordeaux, INSERM, BRIC, U1312, 33000, Bordeaux, France
| | - Edith Chevret
- Univ. Bordeaux, INSERM, BRIC, U1312, 33000, Bordeaux, France
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5
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Al-Talib M, Dimonte S, Humphreys IR. Mucosal T-cell responses to chronic viral infections: Implications for vaccine design. Cell Mol Immunol 2024:10.1038/s41423-024-01140-2. [PMID: 38459243 DOI: 10.1038/s41423-024-01140-2] [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: 10/26/2023] [Accepted: 01/31/2024] [Indexed: 03/10/2024] Open
Abstract
Mucosal surfaces that line the respiratory, gastrointestinal and genitourinary tracts are the major interfaces between the immune system and the environment. Their unique immunological landscape is characterized by the necessity of balancing tolerance to commensal microorganisms and other innocuous exposures against protection from pathogenic threats such as viruses. Numerous pathogenic viruses, including herpesviruses and retroviruses, exploit this environment to establish chronic infection. Effector and regulatory T-cell populations, including effector and resident memory T cells, play instrumental roles in mediating the transition from acute to chronic infection, where a degree of viral replication is tolerated to minimize immunopathology. Persistent antigen exposure during chronic viral infection leads to the evolution and divergence of these responses. In this review, we discuss advances in the understanding of mucosal T-cell immunity during chronic viral infections and how features of T-cell responses develop in different chronic viral infections of the mucosa. We consider how insights into T-cell immunity at mucosal surfaces could inform vaccine strategies: not only to protect hosts from chronic viral infections but also to exploit viruses that can persist within mucosal surfaces as vaccine vectors.
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Affiliation(s)
- Mohammed Al-Talib
- Systems Immunity University Research Institute/Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
- Bristol Medical School, University of Bristol, 5 Tyndall Avenue, Bristol, BS8 1UD, UK
| | - Sandra Dimonte
- Systems Immunity University Research Institute/Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK
| | - Ian R Humphreys
- Systems Immunity University Research Institute/Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, CF14 4XN, UK.
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6
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Holtappels R, Büttner JK, Freitag K, Reddehase MJ, Lemmermann NA. Modulation of cytomegalovirus immune evasion identifies direct antigen presentation as the predominant mode of CD8 T-cell priming during immune reconstitution after hematopoietic cell transplantation. Front Immunol 2024; 15:1355153. [PMID: 38426094 PMCID: PMC10902149 DOI: 10.3389/fimmu.2024.1355153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 02/01/2024] [Indexed: 03/02/2024] Open
Abstract
Cytomegalovirus (CMV) infection is the most critical infectious complication in recipients of hematopoietic cell transplantation (HCT) in the period between a therapeutic hematoablative treatment and the hematopoietic reconstitution of the immune system. Clinical investigation as well as the mouse model of experimental HCT have consistently shown that timely reconstitution of antiviral CD8 T cells is critical for preventing CMV disease in HCT recipients. Reconstitution of cells of the T-cell lineage generates naïve CD8 T cells with random specificities among which CMV-specific cells need to be primed by presentation of viral antigen for antigen-specific clonal expansion and generation of protective antiviral effector CD8 T cells. For CD8 T-cell priming two pathways are discussed: "direct antigen presentation" by infected professional antigen-presenting cells (pAPCs) and "antigen cross-presentation" by uninfected pAPCs that take up antigenic material derived from infected tissue cells. Current view in CMV immunology favors the cross-priming hypothesis with the argument that viral immune evasion proteins, known to interfere with the MHC class-I pathway of direct antigen presentation by infected cells, would inhibit the CD8 T-cell response. While the mode of antigen presentation in the mouse model of CMV infection has been studied in the immunocompetent host under genetic or experimental conditions excluding either pathway of antigen presentation, we are not aware of any study addressing the medically relevant question of how newly generated naïve CD8 T cells become primed in the phase of lympho-hematopoietic reconstitution after HCT. Here we used the well-established mouse model of experimental HCT and infection with murine CMV (mCMV) and pursued the recently described approach of up- or down-modulating direct antigen presentation by using recombinant viruses lacking or overexpressing the central immune evasion protein m152 of mCMV, respectively. Our data reveal that the magnitude of the CD8 T-cell response directly reflects the level of direct antigen presentation.
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Affiliation(s)
- Rafaela Holtappels
- Institute for Virology and Research Center for Immunotherapy (FZI) at the University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Julia K. Büttner
- Institute for Virology and Research Center for Immunotherapy (FZI) at the University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Kirsten Freitag
- Institute for Virology and Research Center for Immunotherapy (FZI) at the University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Matthias J. Reddehase
- Institute for Virology and Research Center for Immunotherapy (FZI) at the University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
| | - Niels A. Lemmermann
- Institute for Virology and Research Center for Immunotherapy (FZI) at the University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
- Institute of Virology, Medical Faculty, University of Bonn, Bonn, Germany
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7
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van der Heide V, Davenport B, Cubitt B, Roudko V, Choo D, Humblin E, Jhun K, Angeliadis K, Dawson T, Furtado G, Kamphorst A, Ahmed R, de la Torre JC, Homann D. Functional impairment of "helpless" CD8 + memory T cells is transient and driven by prolonged but finite cognate antigen presentation. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.22.576725. [PMID: 38328184 PMCID: PMC10849538 DOI: 10.1101/2024.01.22.576725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
Generation of functional CD8 + T cell memory typically requires engagement of CD4 + T cells. However, in certain scenarios, such as acutely-resolving viral infections, effector (T E ) and subsequent memory (T M ) CD8 + T cell formation appear impervious to a lack of CD4 + T cell help during priming. Nonetheless, such "helpless" CD8 + T M respond poorly to pathogen rechallenge. At present, the origin and long-term evolution of helpless CD8 + T cell memory remain incompletely understood. Here, we demonstrate that helpless CD8 + T E differentiation is largely normal but a multiplicity of helpless CD8 T M defects, consistent with impaired memory maturation, emerge as a consequence of prolonged yet finite exposure to cognate antigen. Importantly, these defects resolve over time leading to full restoration of CD8 + T M potential and recall capacity. Our findings provide a unified explanation for helpless CD8 + T cell memory and emphasize an unexpected CD8 + T M plasticity with implications for vaccination strategies and beyond.
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Couturaud B, Doix B, Carretero-Iglesia L, Allard M, Pradervand S, Hebeisen M, Rufer N. Overall avidity declines in TCR repertoires during latent CMV but not EBV infection. Front Immunol 2023; 14:1293090. [PMID: 38053994 PMCID: PMC10694213 DOI: 10.3389/fimmu.2023.1293090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 11/06/2023] [Indexed: 12/07/2023] Open
Abstract
Introduction The avidity of the T-cell receptor (TCR) for antigenic peptides presented by the MHC (pMHC) on cells is an essential parameter for efficient T cell-mediated immunity. Yet, whether the TCR-ligand avidity can drive the clonal evolution of virus antigen-specific CD8 T cells, and how this process is determined in latent Cytomegalovirus (CMV)- against Epstein-Barr virus (EBV)-mediated infection remains largely unknown. Methods To address these issues, we quantified monomeric TCR-pMHC dissociation rates on CMV- and EBV-specific individual TCRαβ clonotypes and polyclonal CD8 T cell populations in healthy donors over a follow-up time of 15-18 years. The parameters involved during the long-term persistence of virus-specific T cell clonotypes were further evaluated by gene expression profiling, phenotype and functional analyses. Results Within CMV/pp65-specific T cell repertoires, a progressive contraction of clonotypes with high TCR-pMHC avidity and low CD8 binding dependency was observed, leading to an overall avidity decline during long-term antigen exposure. We identified a unique transcriptional signature preferentially expressed by high-avidity CMV/pp65-specific T cell clonotypes, including the inhibitory receptor LILRB1. Interestingly, T cell clonotypes of high-avidity showed higher LILRB1 expression than the low-avidity ones and LILRB1 blockade moderately increased T cell proliferation. Similar findings were made for CD8 T cell repertoires specific for the CMV/IE-1 epitope. There was a gradual in vivo loss of high-avidity T cells with time for both CMV specificities, corresponding to virus-specific CD8 T cells expressing enhanced LILRB1 levels. In sharp contrast, the EBV/BMFL1-specific T cell clonal composition and distribution, once established, displayed an exceptional stability, unrelated to TCR-pMHC binding avidity or LILRB1 expression. Conclusions These findings reveal an overall long-term avidity decline of CMV- but not EBV-specific T cell clonal repertoires, highlighting the differing role played by TCR-ligand avidity over the course of these two latent herpesvirus infections. Our data further suggest that the inhibitor receptor LILRB1 potentially restricts the clonal expansion of high-avidity CMV-specific T cell clonotypes during latent infection. We propose that the mechanisms regulating the long-term outcome of CMV- and EBV-specific memory CD8 T cell clonotypes in humans are distinct.
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Affiliation(s)
- Barbara Couturaud
- Department of Oncology, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Bastien Doix
- Department of Oncology, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Laura Carretero-Iglesia
- Department of Oncology, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Mathilde Allard
- Department of Oncology, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Sylvain Pradervand
- Department of Oncology, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
- Lausanne Genomic Technologies Facility (LGTF), University of Lausanne, Lausanne, Switzerland
| | - Michael Hebeisen
- Department of Oncology, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
| | - Nathalie Rufer
- Department of Oncology, Lausanne University Hospital and University of Lausanne, Epalinges, Switzerland
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9
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Holtappels R, Becker S, Hamdan S, Freitag K, Podlech J, Lemmermann NA, Reddehase MJ. Immunotherapy of cytomegalovirus infection by low-dose adoptive transfer of antiviral CD8 T cells relies on substantial post-transfer expansion of central memory cells but not effector-memory cells. PLoS Pathog 2023; 19:e1011643. [PMID: 37972198 PMCID: PMC10688903 DOI: 10.1371/journal.ppat.1011643] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 11/30/2023] [Accepted: 11/06/2023] [Indexed: 11/19/2023] Open
Abstract
Cytomegaloviruses (CMVs) are host species-specific in their replication. It is a hallmark of all CMVs that productive primary infection is controlled by concerted innate and adaptive immune responses in the immunocompetent host. As a result, the infection usually passes without overt clinical symptoms and develops into latent infection, referred to as "latency". During latency, the virus is maintained in a non-replicative state from which it can reactivate to productive infection under conditions of waning immune surveillance. In contrast, infection of an immunocompromised host causes CMV disease with viral multiple-organ histopathology resulting in organ failure. Primary or reactivated CMV infection of hematopoietic cell transplantation (HCT) recipients in a "window of risk" between therapeutic hemato-ablative leukemia therapy and immune system reconstitution remains a clinical challenge. Studies in the mouse model of experimental HCT and infection with murine CMV (mCMV), followed by clinical trials in HCT patients with human CMV (hCMV) reactivation, have revealed a protective function of virus-specific CD8 T cells upon adoptive cell transfer (AT). Memory CD8 T cells derived from latently infected hosts are a favored source for immunotherapy by AT. Strikingly low numbers of these cells were found to prevent CMV disease, suggesting either an immediate effector function of few transferred cells or a clonal expansion generating high numbers of effector cells. In the murine model, the memory population consists of resting central memory T cells (TCM), as well as of conventional effector-memory T cells (cTEM) and inflationary effector-memory T cells (iTEM). iTEM increase in numbers over time in the latently infected host, a phenomenon known as 'memory inflation' (MI). They thus appeared to be a promising source for use in immunotherapy. However, we show here that iTEM contribute little to the control of infection after AT, which relies almost entirely on superior proliferative potential of TCM.
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Affiliation(s)
- Rafaela Holtappels
- Institute for Virology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Sara Becker
- Institute for Virology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Institute of Virology, Medical Faculty, University of Bonn, Bonn, Germany
| | - Sara Hamdan
- Institute for Virology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Kirsten Freitag
- Institute for Virology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Jürgen Podlech
- Institute for Virology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Niels A. Lemmermann
- Institute for Virology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Institute of Virology, Medical Faculty, University of Bonn, Bonn, Germany
| | - Matthias J. Reddehase
- Institute for Virology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
- Research Center for Immunotherapy (FZI), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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10
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van Olst L, Kamermans A, van der Pol SMA, Rodríguez E, Hulshof LA, van Dijk RE, Vonk DN, Schouten M, Witte ME, de Vries HE, Middeldorp J. Age-associated systemic factors change central and peripheral immunity in adult male mice. Brain Behav Immun 2023; 111:395-411. [PMID: 37169133 DOI: 10.1016/j.bbi.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 05/01/2023] [Accepted: 05/05/2023] [Indexed: 05/13/2023] Open
Abstract
Aging coincides with major changes in brain immunity that aid in a decline in neuronal function. Here, we postulate that systemic, pro-aging factors contribute to immunological changes that occur within the brain during aging. To investigate this hypothesis, we comprehensively characterized the central and peripheral immune landscape of 20-month-old male mice using cytometry by time-of-flight (CyTOF) and investigated the role of age-associated circulating factors. We found that CD8+ T cells expressing programmed cell death protein 1 (PD1) and tissue-resident memory CD8+ T cells accumulated in the aged brain while levels of memory T cells rose in the periphery. Injections of plasma derived from 20-month-old mice into 5-month-old receiving mice decreased the frequency of splenic and circulating naïve T cells, increased memory CD8+ T cells, and non-classical, patrolling monocytes in the spleen, and elevated levels of regulatory T cells and non-classical monocytes in the blood. Notably, CD8+ T cells accumulated within white matter areas of plasma-treated mice, which coincided with the expression of vascular cell adhesion molecule 1 (VCAM-1), a mediator of immune cell trafficking, on the brain vasculature. Taken together, we here describe age-related immune cell changes in the mouse brain and circulation and show that age-associated systemic factors induce the expansion of CD8+ T cells in the aged brain.
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Affiliation(s)
- L van Olst
- Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands; Amsterdam Neuroscience, Amsterdam, the Netherlands.
| | - A Kamermans
- Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands; Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - S M A van der Pol
- Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands; Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - E Rodríguez
- Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands; Cancer Center Amsterdam, Amsterdam, the Netherlands; Amsterdam Infection and Immunity Institute, Amsterdam, the Netherlands
| | - L A Hulshof
- Department of Translational Neuroscience, UMC Utrecht Brain Center, University Medical Centre Utrecht, University Utrecht, Utrecht, the Netherlands
| | - R E van Dijk
- Department of Translational Neuroscience, UMC Utrecht Brain Center, University Medical Centre Utrecht, University Utrecht, Utrecht, the Netherlands
| | - D N Vonk
- Department of Translational Neuroscience, UMC Utrecht Brain Center, University Medical Centre Utrecht, University Utrecht, Utrecht, the Netherlands
| | - M Schouten
- Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands; Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - M E Witte
- Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands; Amsterdam Neuroscience, Amsterdam, the Netherlands; Amsterdam Infection and Immunity Institute, Amsterdam, the Netherlands
| | - H E de Vries
- Amsterdam UMC Location Vrije Universiteit Amsterdam, Department of Molecular Cell Biology and Immunology, Amsterdam, the Netherlands; Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - J Middeldorp
- Department of Translational Neuroscience, UMC Utrecht Brain Center, University Medical Centre Utrecht, University Utrecht, Utrecht, the Netherlands; Department of Neurobiology and Aging, Biomedical Primate Research Centre, Rijswijk, the Netherlands
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11
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Li X, Liang H, Fan J. Prospects of Cytomegalovirus-Specific T-Cell Receptors in Clinical Diagnosis and Therapy. Viruses 2023; 15:1334. [PMID: 37376633 DOI: 10.3390/v15061334] [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: 04/29/2023] [Revised: 06/03/2023] [Accepted: 06/04/2023] [Indexed: 06/29/2023] Open
Abstract
Human cytomegalovirus (HCMV) is responsible for widespread infections worldwide. In immunocompetent individuals it is typically latent, while infection or reactivation in immunocompromised individuals can result in severe clinical symptoms or even death. Although there has been significant progress in the treatment and diagnosis of HCMV infection in recent years, numerous shortcomings and developmental limitations persist. There is an urgent need to develop innovative, safe, and effective treatments, as well as to explore early and timely diagnostic strategies for HCMV infection. Cell-mediated immune responses are the primary factor controlling HCMV infection and replication, but the protective role of humoral immune responses remains controversial. T-cells, key effector cells of the cellular immune system, are critical for clearing and preventing HCMV infection. The T-cell receptor (TCR) lies at the heart of T-cell immune responses, and its diversity enables the immune system to differentiate between self and non-self. Given the significant influence of cellular immunity on human health and the indispensable role of the TCR in T-cell immune responses, we posit that the impact of TCR on the development of novel diagnostic and prognostic methods, as well as on patient monitoring and management of clinical HCMV infection, will be far-reaching and profound. High-throughput and single-cell sequencing technologies have facilitated unprecedented quantitative detection of TCR diversity. With these current sequencing technologies, researchers have already obtained a vast number of TCR sequences. It is plausible that in the near future studies on TCR repertoires will be instrumental in assessing vaccine efficacy, immunotherapeutic strategies, and the early diagnosis of HCMV infection.
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Affiliation(s)
- Xuejie Li
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Hanying Liang
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
| | - Jun Fan
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou 310003, China
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12
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Chowdhury RR, Valainis JR, Dubey M, von Boehmer L, Sola E, Wilhelmy J, Guo J, Kask O, Ohanyan M, Sun M, Huang H, Huang X, Nguyen PK, Scriba TJ, Davis MM, Bendall SC, Chien YH. NK-like CD8 + γδ T cells are expanded in persistent Mycobacterium tuberculosis infection. Sci Immunol 2023; 8:eade3525. [PMID: 37000856 PMCID: PMC10408713 DOI: 10.1126/sciimmunol.ade3525] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Accepted: 03/09/2023] [Indexed: 04/03/2023]
Abstract
The response of gamma delta (γδ) T cells in the acute versus chronic phases of the same infection is unclear. How γδ T cells function in acute Mycobacterium tuberculosis (Mtb) infection is well characterized, but their response during persistent Mtb infection is not well understood, even though most infections with Mtb manifest as a chronic, clinically asymptomatic state. Here, we analyze peripheral blood γδ T cells from a South African adolescent cohort and show that a unique CD8+ γδ T cell subset with features of "memory inflation" expands in chronic Mtb infection. These cells are hyporesponsive to T cell receptor (TCR)-mediated signaling but, like NK cells, can mount robust CD16-mediated cytotoxic responses. These CD8+ γδ T cells comprise a highly focused TCR repertoire, with clonotypes that are Mycobacterium specific but not phosphoantigen reactive. Using multiparametric single-cell pseudo-time trajectory analysis, we identified the differentiation paths that these CD8+ γδ T cells follow to develop into effectors in this infection state. Last, we found that circulating CD8+ γδ T cells also expand in other chronic inflammatory conditions, including cardiovascular disease and cancer, suggesting that persistent antigenic exposure may drive similar γδ T cell effector programs and differentiation fates.
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Affiliation(s)
- Roshni Roy Chowdhury
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA
- Program in Immunology, Stanford University, Stanford, CA, USA
- Department of Medicine, Section of Genetic Medicine, University of Chicago, Chicago, IL, USA
| | | | - Megha Dubey
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA
| | - Lotta von Boehmer
- Institute for Immunity, Transplantation, and Infection, Stanford University, Stanford, CA, USA
| | - Elsa Sola
- Institute for Immunity, Transplantation, and Infection, Stanford University, Stanford, CA, USA
| | - Julie Wilhelmy
- Institute for Immunity, Transplantation, and Infection, Stanford University, Stanford, CA, USA
| | - Jing Guo
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA
| | - Oliver Kask
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA
| | - Mane Ohanyan
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA
| | - Meng Sun
- Institute for Immunity, Transplantation, and Infection, Stanford University, Stanford, CA, USA
| | - Huang Huang
- Institute for Immunity, Transplantation, and Infection, Stanford University, Stanford, CA, USA
| | - Xianxi Huang
- Division of Cardiovascular Medicine, Stanford University, Stanford, CA, USA
- The First Affiliated Hospital of Shantou University Medical College, Shantou, China
| | - Patricia K. Nguyen
- Division of Cardiovascular Medicine, Stanford University, Stanford, CA, USA
| | - Thomas J. Scriba
- South African Tuberculosis Vaccine Initiative, Institute of Infectious Disease and Molecular Medicine and Division of Immunology, Department of Pathology, University of Cape Town, Cape Town, South Africa
| | - Mark M. Davis
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA
- Program in Immunology, Stanford University, Stanford, CA, USA
- Institute for Immunity, Transplantation, and Infection, Stanford University, Stanford, CA, USA
- The Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Sean C. Bendall
- Program in Immunology, Stanford University, Stanford, CA, USA
- Department of Pathology, Stanford University, Stanford, CA, USA
| | - Yueh-hsiu Chien
- Department of Microbiology and Immunology, Stanford University, Stanford, CA, USA
- Program in Immunology, Stanford University, Stanford, CA, USA
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13
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Bonavita CM, White TM, Francis J, Farrell HE, Davis-Poynter NJ, Cardin RD. The Viral G-Protein-Coupled Receptor Homologs M33 and US28 Promote Cardiac Dysfunction during Murine Cytomegalovirus Infection. Viruses 2023; 15:711. [PMID: 36992420 PMCID: PMC10054303 DOI: 10.3390/v15030711] [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: 12/29/2022] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/12/2023] Open
Abstract
Human cytomegalovirus (HCMV) is a ubiquitous pathogen that infects the majority of the world population and causes lifelong latent infection. HCMV has been shown to exacerbate cardiovascular diseases, including myocarditis, vascular sclerosis, and transplant vasculopathy. Recently, we have shown that murine CMV (MCMV) recapitulates the cardiovascular dysfunction observed in patients with HCMV-induced myocarditis. To understand the viral mechanisms involved in CMV-induced heart dysfunction, we further characterized cardiac function in response to MCMV and examined virally encoded G-protein-coupled receptor homologs (vGPCRs) US28 and M33 as potential factors that promote infection in the heart. We hypothesized that the CMV-encoded vGPCRs could exacerbate cardiovascular damage and dysfunction. Three viruses were used to evaluate the role of vGPCRs in cardiac dysfunction: wild-type MCMV, a M33-deficient virus (∆M33), and a virus with the M33 open reading frame (ORF) replaced with US28, an HCMV vGPCR (i.e., US28+). Our in vivo studies revealed that M33 plays a role in promoting cardiac dysfunction by increasing viral load and heart rate during acute infection. During latency, ΔM33-infected mice demonstrated reduced calcification, altered cellular gene expression, and less cardiac hypertrophy compared with wild-type MCMV-infected mice. Ex vivo viral reactivation from hearts was less efficient in ΔM33-infected animals. HCMV protein US28 expression restored the ability of the M33-deficient virus to reactivate from the heart. US28+ MCMV infection caused damage to the heart comparable with wild-type MCMV infection, suggesting that the US28 protein is sufficient to complement the function of M33 in the heart. Altogether, these data suggest a role for vGPCRs in viral pathogenesis in the heart and thus suggest that vGPCRs promote long-term cardiac damage and dysfunction.
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Affiliation(s)
- Cassandra M. Bonavita
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Timothy M. White
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Joseph Francis
- Department of Comparative Biological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
| | - Helen E. Farrell
- School of Chemistry and Molecular Bioscience, University of Queensland, Brisbane 4072, Australia
| | | | - Rhonda D. Cardin
- Department of Pathobiological Sciences, School of Veterinary Medicine, Louisiana State University, Baton Rouge, LA 70803, USA
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14
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Latent CMV infection of Lymphatic endothelial cells is sufficient to drive CD8 T cell memory inflation. PLoS Pathog 2023; 19:e1010351. [PMID: 36689486 PMCID: PMC9894547 DOI: 10.1371/journal.ppat.1010351] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 02/02/2023] [Accepted: 12/21/2022] [Indexed: 01/24/2023] Open
Abstract
CMV, a ubiquitous herpesvirus, elicits an extraordinarily large T cell response that is sustained or increases over time, a phenomenon termed 'memory inflation.' Remarkably, even latent, non-productive infection can drive memory inflation. Despite intense research on this phenomenon, the infected cell type(s) involved are unknown. To identify the responsible cell type(s), we designed a Cre-lox murine CMV (MCMV) system, where a spread-deficient (ΔgL) virus expresses recombinant SIINFEKL only in Cre+ host cells. We found that latent infection of endothelial cells (ECs), but not dendritic cells (DCs) or hepatocytes, was sufficient to drive CD8 T cell memory inflation. Infection of Lyve-1-Cre and Prox1-CreERT2 mice revealed that amongst EC subsets, infection of lymphatic ECs was sufficient. Genetic ablation of β2m on lymphatic ECs did not prevent inflation, suggesting another unidentified cell type can also present antigen to CD8 T cells during latency. This novel system definitively shows that antigen presentation by lymphatic ECs drives robust CD8 T cell memory inflation.
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15
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Hudson WH, Wieland A. Technology meets TILs: Deciphering T cell function in the -omics era. Cancer Cell 2023; 41:41-57. [PMID: 36206755 PMCID: PMC9839604 DOI: 10.1016/j.ccell.2022.09.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 08/15/2022] [Accepted: 09/15/2022] [Indexed: 01/17/2023]
Abstract
T cells are at the center of cancer immunology because of their ability to recognize mutations in tumor cells and directly mediate cancer cell killing. Immunotherapies to rejuvenate exhausted T cell responses have transformed the clinical management of several malignancies. In parallel, the development of novel multidimensional analysis platforms, such as single-cell RNA sequencing and high-dimensional flow cytometry, has yielded unprecedented insights into immune cell biology. This convergence has revealed substantial heterogeneity of tumor-infiltrating immune cells in single tumors, across tumor types, and among individuals with cancer. Here we discuss the opportunities and challenges of studying the complex tumor microenvironment with -omics technologies that generate vast amounts of data, highlighting the opportunities and limitations of these technologies with a particular focus on interpreting high-dimensional studies of CD8+ T cells in the tumor microenvironment.
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Affiliation(s)
- William H Hudson
- Department of Molecular and Cellular Biology, Baylor College of Medicine, Houston, TX 77030, USA; Dan L. Duncan Comprehensive Cancer Center, Baylor College of Medicine, Houston, TX 77030, USA; Center for Cell and Gene Therapy, Baylor College of Medicine, Houston, TX 77030, USA.
| | - Andreas Wieland
- Department of Otolaryngology, The Ohio State University, Columbus, OH 43210, USA; Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH 43210, USA; Pelotonia Institute for Immuno-Oncology, The Ohio State University, Columbus, OH 43210, USA.
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16
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Provine NM, Klenerman P. Adenovirus vector and mRNA vaccines: Mechanisms regulating their immunogenicity. Eur J Immunol 2022:10.1002/eji.202250022. [PMID: 36330560 PMCID: PMC9877955 DOI: 10.1002/eji.202250022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2022] [Revised: 09/05/2022] [Accepted: 11/02/2022] [Indexed: 11/06/2022]
Abstract
Replication-incompetent adenovirus (Ad) vector and mRNA-lipid nanoparticle (LNP) constructs represent two modular vaccine platforms that have attracted substantial interest over the past two decades. Due to the COVID-19 pandemic and the rapid development of multiple successful vaccines based on these technologies, there is now clear real-world evidence of the utility and efficacy of these platforms. Considerable optimization and refinement efforts underpin the successful application of these technologies. Despite this, our understanding of the specific pathways and processes engaged by these vaccines to stimulate the immune response remains incomplete. This review will synthesize our current knowledge of the specific mechanisms by which CD8+ T cell and antibody responses are induced by each of these vaccine platforms, and how this can be impacted by specific vaccine construction techniques. Key gaps in our knowledge are also highlighted, which can hopefully focus future studies.
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Affiliation(s)
- Nicholas M. Provine
- Translational Gastroenterology UnitNuffield Department of MedicineUniversity of OxfordOxfordUK
| | - Paul Klenerman
- Translational Gastroenterology UnitNuffield Department of MedicineUniversity of OxfordOxfordUK,Peter Medawar Building for Pathogen ResearchUniversity of OxfordOxfordUK
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17
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Lobby JL, Uddbäck I, Scharer CD, Mi T, Boss JM, Thomsen AR, Christensen JP, Kohlmeier JE. Persistent Antigen Harbored by Alveolar Macrophages Enhances the Maintenance of Lung-Resident Memory CD8 + T Cells. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 209:1778-1787. [PMID: 36162870 PMCID: PMC9588742 DOI: 10.4049/jimmunol.2200082] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 08/16/2022] [Indexed: 11/07/2022]
Abstract
Lung tissue-resident memory T cells are crucial mediators of cellular immunity against respiratory viruses; however, their gradual decline hinders the development of T cell-based vaccines against respiratory pathogens. Recently, studies using adenovirus (Ad)-based vaccine vectors have shown that the number of protective lung-resident CD8+ TRMs can be maintained long term. In this article, we show that immunization of mice with a replication-deficient Ad serotype 5 expressing influenza (A/Puerto Rico/8/34) nucleoprotein (AdNP) generates a long-lived lung TRM pool that is transcriptionally indistinct from those generated during a primary influenza infection. In addition, we demonstrate that CD4+ T cells contribute to the long-term maintenance of AdNP-induced CD8+ TRMs. Using a lineage tracing approach, we identify alveolar macrophages as a cell source of persistent NP Ag after immunization with AdNP. Importantly, depletion of alveolar macrophages after AdNP immunization resulted in significantly reduced numbers of NP-specific CD8+ TRMs in the lungs and airways. Combined, our results provide further insight to the mechanisms governing the enhanced longevity of Ag-specific CD8+ lung TRMs observed after immunization with recombinant Ad.
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Affiliation(s)
- Jenna L Lobby
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA; and
| | - Ida Uddbäck
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA; and
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Christopher D Scharer
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA; and
| | - Tian Mi
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA; and
| | - Jeremy M Boss
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA; and
| | - Allan R Thomsen
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Jan P Christensen
- Department of Immunology and Microbiology, University of Copenhagen, Copenhagen, Denmark
| | - Jacob E Kohlmeier
- Department of Microbiology and Immunology, Emory University School of Medicine, Atlanta, GA; and
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18
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Vitallé J, Pérez-Gómez A, Ostos FJ, Gasca-Capote C, Jiménez-Leon MR, Bachiller S, Rivas-Jeremías I, Silva-Sánchez MDM, Ruiz-Mateos AM, Martín-Sánchez MÁ, López-Cortes LF, Rafii El Idrissi Benhnia M, Ruiz-Mateos E. Immune defects associated with lower SARS-CoV-2 BNT162b2 mRNA vaccine response in elderly people. JCI Insight 2022; 7:161045. [PMID: 35943812 PMCID: PMC9536264 DOI: 10.1172/jci.insight.161045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Accepted: 08/04/2022] [Indexed: 11/17/2022] Open
Abstract
The immune factors associated with impaired SARS-CoV-2 vaccine response in the elderly are mostly unknown. We studied >60 and <60 years old people vaccinated with SARS-CoV-2 BNT162b2 mRNA before and after the first and second dose. Aging was associated with a lower anti-RBD IgG levels and a decreased magnitude and polyfunctionality of SARS-CoV-2 specific T cell response. The dramatic decrease in thymic function in aged people with >60 years of age, which fueled alteration in T cell homeostasis, and lower CD161+ T cell levels were associated with decreased T cell response two months after vaccination. Additionally, a deficient dendritic cell (DC) homing, activation and Toll like receptor (TLR)-mediated function, along with a proinflammatory functional profile in monocytes, were observed in the >60 years old group, which was also related to lower specific T cell response after vaccination. These findings might be relevant for the improvement of the current vaccination strategies and for the development of new vaccine prototypes.
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Affiliation(s)
- Joana Vitallé
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Alberto Pérez-Gómez
- Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Francisco José Ostos
- Department of Medical Biochemistry, Molecular Biology, and Immunology, University of Seville School of Medicine, Seville, Spain
| | - Carmen Gasca-Capote
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Maria Reyes Jiménez-Leon
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Sara Bachiller
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Inmaculada Rivas-Jeremías
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Maria Del Mar Silva-Sánchez
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Anabel M Ruiz-Mateos
- Centro de Salud Pinillo Chico, Centro de Salud Pinillo Chico, El Puerto de Santa María, Seville, Spain
| | - María Ángeles Martín-Sánchez
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Luis Fernando López-Cortes
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Mohammed Rafii El Idrissi Benhnia
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
| | - Ezequiel Ruiz-Mateos
- Clinical Unit of Infectious Diseases, Microbiology and Preventive Medicine, Institute of Biomedicine of Seville (IBiS), Virgen del Rocío University Hospital, Seville, Spain
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19
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Caruso C, Ligotti ME, Accardi G, Aiello A, Candore G. An immunologist's guide to immunosenescence and its treatment. Expert Rev Clin Immunol 2022; 18:961-981. [PMID: 35876758 DOI: 10.1080/1744666x.2022.2106217] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
INTRODUCTION : The ageing process causes several changes in the immune system, although immune ageing is strongly influenced by individual immunological history, as well as genetic and environmental factors leading to inter-individual variability. AREAS COVERED : Here, we focused on the biological and clinical meaning of immunosenescence. Data on SARS-CoV-2 and Yellow Fever vaccine have demonstrated the clinical relevance of immunosenescence, while inconsistent results, obtained from longitudinal studies aimed at looking for immune risk phenotypes, have revealed that the immunosenescence process is highly context-dependent. Large projects have allowed the delineation of the drivers of immune system variance, including genetic and environmental factors, sex, smoking, and co-habitation. Therefore, it is difficult to identify the interventions that can be envisaged to maintain or improve immune function in older people. That suggests that drug treatment of immunosenescence should require personalized intervention. Regarding this, we discussed the role of changes in lifestyle as a potential therapeutic approach. EXPERT OPINION : Our review points out that age is only part of the problem of immunosenescence. Everyone ages differently because he/she is unique in genetics and experience of life and this applies even more to the immune system (immunobiography). Finally, the present review shows how appreciable results in the modification of immunosenescence biomarkers can be achieved with lifestyle modification.
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Affiliation(s)
- Calogero Caruso
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Mattia Emanuela Ligotti
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Giulia Accardi
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Anna Aiello
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
| | - Giuseppina Candore
- Laboratorio di Immunopatologia e Immunosenescenza, Dipartimento di Biomedicina, Neuroscienze e Diagnostica Avanzata, Università di Palermo, Palermo, Italy
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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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Higdon LE, Ahmad AA, Schaffert S, Margulies KB, Maltzman JS. CMV-Responsive CD4 T Cells Have a Stable Cytotoxic Phenotype Over the First Year Post-Transplant in Patients Without Evidence of CMV Viremia. Front Immunol 2022; 13:904705. [PMID: 35837398 PMCID: PMC9275561 DOI: 10.3389/fimmu.2022.904705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Accepted: 05/30/2022] [Indexed: 11/18/2022] Open
Abstract
Cytomegalovirus (CMV) infection is a known cause of morbidity and mortality in solid organ transplant recipients. While primary infection is controlled by a healthy immune system, CMV is never eradicated due to viral latency and periodic reactivation. Transplantation and associated therapies hinder immune surveillance of CMV. CD4 T cells are an important part of control of CMV reactivation. We therefore investigated how CMV impacts differentiation, functionality, and expansion of protective CD4 T cells from recipients of heart or kidney transplant in the first year post-transplant without evidence of CMV viremia. We analyzed longitudinal peripheral blood samples by flow cytometry and targeted single cell RNA sequencing coupled to T cell receptor (TCR) sequencing. At the time of transplant, CD4 T cells from CMV seropositive transplant recipients had a higher degree of immune aging than the seronegative recipients. The phenotype of CD4 T cells was stable over time. CMV-responsive CD4 T cells in our transplant cohort included a large proportion with cytotoxic potential. We used sequence analysis of TCRαβ to identify clonal expansion and found that clonally expanded CMV-responsive CD4 T cells were of a predominantly aged cytotoxic phenotype. Overall, our analyses suggest that the CD4 response to CMV is dominated by cytotoxicity and not impacted by transplantation in the first year. Our findings indicate that CMV-responsive CD4 T cells are homeostatically stable in the first year after transplantation and identify subpopulations relevant to study the role of this CD4 T cell population in post-transplant health.
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Affiliation(s)
- Lauren E. Higdon
- Department of Medicine, Nephrology, Stanford University, Palo Alto, CA, United States
- *Correspondence: Lauren E. Higdon, ; Jonathan S. Maltzman,
| | - Ayah A. Ahmad
- Macaulay Honors College, Hunter College, The City University of New York, New York, NY, United States
| | - Steven Schaffert
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA, United States
- Department of Medicine/Biomedical Informatics, Stanford University, Stanford, CA, United States
| | - Kenneth B. Margulies
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jonathan S. Maltzman
- Department of Medicine, Nephrology, Stanford University, Palo Alto, CA, United States
- Geriatric Research Education and Clinical Center, Veteran's Affairs Palo Alto Health Care System, Palo Alto, CA, United States
- *Correspondence: Lauren E. Higdon, ; Jonathan S. Maltzman,
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22
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'Stem-like' precursors are the fount to sustain persistent CD8 + T cell responses. Nat Immunol 2022; 23:836-847. [PMID: 35624209 DOI: 10.1038/s41590-022-01219-w] [Citation(s) in RCA: 53] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Accepted: 04/07/2022] [Indexed: 01/22/2023]
Abstract
Virus-specific CD8+ T cells that differentiate in the context of resolved versus persisting infections exhibit divergent phenotypic and functional characteristics, which suggests that their differentiation trajectories are governed by distinct cellular dynamics, developmental pathways and molecular mechanisms. For acute infection, it is long known that antigen-specific T cell populations contain terminally differentiated effector T cells, known as short-lived effector T cells, and proliferation-competent and differentiation-competent memory precursor T cells. More recently, it was identified that a similar functional segregation occurs in chronic infections. A failure to generate proliferation-competent precursor cells in chronic infections and tumors results in the collapse of the T cell response. Thus, these precursor cells are major therapeutic and prophylactic targets of immune interventions. These observations suggest substantial commonality between T cell responses in acute and chronic infections but there are also critical differences. We are therefore reviewing the common features and peculiarities of precursor cells in acute infections, different types of persistent infection and cancer.
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23
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Abstract
Two vasculitides, giant cell arteritis (GCA) and Takayasu arteritis (TAK), are recognized as autoimmune and autoinflammatory diseases that manifest exclusively within the aorta and its large branches. In both entities, the age of the affected host is a critical risk factor. TAK manifests during the 2nd-4th decade of life, occurring while the immune system is at its height of performance. GCA is a disease of older individuals, with infrequent cases during the 6th decade and peak incidence during the 8th decade of life. In both vasculitides, macrophages and T cells infiltrate into the adventitia and media of affected vessels, induce granulomatous inflammation, cause vessel wall destruction, and reprogram vascular cells to drive adventitial and neointimal expansion. In GCA, abnormal immunity originates in an aged immune system and evolves within the aged vascular microenvironment. One hallmark of the aging immune system is the preferential loss of CD8+ T cell function. Accordingly, in GCA but not in TAK, CD8+ effector T cells play a negligible role and anti-inflammatory CD8+ T regulatory cells are selectively impaired. Here, we review current evidence of how the process of immunosenescence impacts the risk for GCA and how fundamental differences in the age of the immune system translate into differences in the granulomatous immunopathology of TAK versus GCA.
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Research Highlights. Transplantation 2021. [DOI: 10.1097/tp.0000000000004023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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van den Berg SPH, Derksen LY, Drylewicz J, Nanlohy NM, Beckers L, Lanfermeijer J, Gessel SN, Vos M, Otto SA, de Boer RJ, Tesselaar K, Borghans JAM, van Baarle D. Quantification of T-cell dynamics during latent cytomegalovirus infection in humans. PLoS Pathog 2021; 17:e1010152. [PMID: 34914799 PMCID: PMC8717968 DOI: 10.1371/journal.ppat.1010152] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 12/30/2021] [Accepted: 11/27/2021] [Indexed: 01/10/2023] Open
Abstract
Cytomegalovirus (CMV) infection has a major impact on the T-cell pool, which is thought to be associated with ageing of the immune system. The effect on the T-cell pool has been interpreted as an effect of CMV on non-CMV specific T-cells. However, it remains unclear whether the effect of CMV could simply be explained by the presence of large, immunodominant, CMV-specific memory CD8+ T-cell populations. These have been suggested to establish through gradual accumulation of long-lived cells. However, little is known about their maintenance. We investigated the effect of CMV infection on T-cell dynamics in healthy older adults, and aimed to unravel the mechanisms of maintenance of large numbers of CMV-specific CD8+ T-cells. We studied the expression of senescence, proliferation, and apoptosis markers and quantified the in vivo dynamics of CMV-specific and other memory T-cell populations using in vivo deuterium labelling. Increased expression of late-stage differentiation markers by CD8+ T-cells of CMV+ versus CMV- individuals was not solely explained by the presence of large, immunodominant CMV-specific CD8+ T-cell populations. The lifespans of circulating CMV-specific CD8+ T-cells did not differ significantly from those of bulk memory CD8+ T-cells, and the lifespans of bulk memory CD8+ T-cells did not differ significantly between CMV- and CMV+ individuals. Memory CD4+ T-cells of CMV+ individuals showed increased expression of late-stage differentiation markers and decreased Ki-67 expression. Overall, the expression of senescence markers on T-cell populations correlated positively with their expected in vivo lifespan. Together, this work suggests that i) large, immunodominant CMV-specific CD8+ T-cell populations do not explain the phenotypical differences between CMV+ and CMV- individuals, ii) CMV infection hardly affects the dynamics of the T-cell pool, and iii) large numbers of CMV-specific CD8+ T-cells are not due to longer lifespans of these cells.
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Affiliation(s)
- Sara P. H. van den Berg
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Lyanne Y. Derksen
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Julia Drylewicz
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Nening M. Nanlohy
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Lisa Beckers
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Josien Lanfermeijer
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Stephanie N. Gessel
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Martijn Vos
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
| | - Sigrid A. Otto
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Rob J. de Boer
- Theoretical Biology, Utrecht University, Utrecht, the Netherlands
| | - Kiki Tesselaar
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - José A. M. Borghans
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
| | - Debbie van Baarle
- Center for Infectious Disease Control, National Institute for Public Health and the Environment, Bilthoven, the Netherlands
- Center for Translational Immunology, University Medical Center Utrecht, Utrecht, the Netherlands
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26
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Pickering H, Sen S, Arakawa-Hoyt J, Ishiyama K, Sun Y, Parmar R, Ahn RS, Sunga G, Llamas M, Hoffmann A, Deng M, Bunnapradist S, Schaenman JM, Gjertson DW, Rossetti M, Lanier LL, Reed EF. NK and CD8+ T cell phenotypes predict onset and control of CMV viremia after kidney transplant. JCI Insight 2021; 6:153175. [PMID: 34609965 PMCID: PMC8663544 DOI: 10.1172/jci.insight.153175] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 09/29/2021] [Indexed: 01/08/2023] Open
Abstract
CMV causes mostly asymptomatic but lifelong infection. Primary infection or reactivation in immunocompromised individuals can be life-threatening. CMV viremia often occurs in solid organ transplant recipients and associates with decreased graft survival and higher mortality. Furthering understanding of impaired immunity that allows CMV reactivation is critical to guiding antiviral therapy and examining the effect of CMV on solid organ transplant outcomes. This study characterized longitudinal immune responses to CMV in 31 kidney transplant recipients with CMV viremia and matched, nonviremic recipients. Recipients were sampled 3 and 12 months after transplant, with additional samples 1 week and 1 month after viremia. PBMCs were stained for NK and T cell markers. PBMC transcriptomes were characterized by RNA-Seq. Plasma proteins were quantified by Luminex. CD8+ T cell transcriptomes were characterized by single-cell RNA-Seq. Before viremia, patients had high levels of IL-15 with concurrent expansion of immature CD56bright NK cells. After viremia, mature CD56dim NK cells and CD28–CD8+ T cells upregulating inhibitory and NK-associated receptors were expanded. Memory NK cells and NK-like CD28–CD8+ T cells were associated with control of viremia. These findings suggest that signatures of innate activation may be prognostic for CMV reactivation after transplant, while CD8+ T cell functionality is critical for effective control of CMV.
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Affiliation(s)
- Harry Pickering
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Subha Sen
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Janice Arakawa-Hoyt
- Department of Microbiology and Immunology, Parker Institute for Cancer Immunotherapy, University of California, San Francisco, San Francisco, California, USA
| | - Kenichi Ishiyama
- Department of Microbiology and Immunology, Parker Institute for Cancer Immunotherapy, University of California, San Francisco, San Francisco, California, USA
| | - Yumeng Sun
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Rajesh Parmar
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Richard S Ahn
- Microbiology, Immunology, and Molecular Genetics.,Institute for Quantitative and Computational Biosciences, and
| | - Gemalene Sunga
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Megan Llamas
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Alexander Hoffmann
- Institute for Quantitative and Computational Biosciences, and.,Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Mario Deng
- Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Suphamai Bunnapradist
- Division of Nephrology, David Geffen School of Medicine, Los Angeles, California, USA
| | - Joanna M Schaenman
- Division of Infectious Diseases, Department of Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - David W Gjertson
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA.,Biostatistics, University of California, Los Angeles, Los Angeles, California, USA
| | - Maura Rossetti
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA
| | - Lewis L Lanier
- Department of Microbiology and Immunology, Parker Institute for Cancer Immunotherapy, University of California, San Francisco, San Francisco, California, USA
| | - Elaine F Reed
- Department of Pathology and Laboratory Medicine, University of California, Los Angeles, Los Angeles, California, USA
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27
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Human Cytomegalovirus Is Associated with Lower HCC Recurrence in Liver Transplant Patients. Curr Oncol 2021; 28:4281-4290. [PMID: 34898547 PMCID: PMC8544456 DOI: 10.3390/curroncol28060364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Revised: 10/16/2021] [Accepted: 10/19/2021] [Indexed: 11/24/2022] Open
Abstract
Human cytomegalovirus (CMV) infection has been reported to compromise liver transplantation (LT) outcomes. Recent studies have shown that CMV has a beneficial oncolytic ability. The aim of this study was to investigate the impact of CMV on tumor recurrence in patients with hepatocellular carcinoma (HCC) who underwent liver transplantation (LT). This retrospective study enrolled 280 HCC patients with LT at our institute between January 2005 and January 2016. Their relevant demographic characteristics, pre- and post-LT conditions, and explant histology were collected. A CMV pp65 antigenemia assay was performed weekly following LT to identify CMV infection. A total of 121 patients (43.2%) were CMV antigenemia-positive and 159 patients (56.8%) were negative. A significantly superior five-year recurrence-free survival was observed among CMV antigenemia-positive patients compared with the CMV-negative group (89.2% vs. 79.9%, p = 0.049). There was no significant difference in overall survival between the positive and negative CMV antigenemia groups (70.2% vs. 75.3%, p = 0.255). The major cause of death was HCC recurrence in CMV antigenemia-negative patients (51.3%), whereas more CMV antigenemia-positive patients died due to other bacterial or fungal infections (58.3%). In the multivariate analysis, the independent risk factors for tumor recurrence included positive CMV antigenemia (p = 0.042; odds ratio (OR) = 0.44; 95% confidence interval (CI) = 0.20–0.97), microscopic vascular invasion (p = 0.001; OR = 3.86; 95% confidence interval (CI) = 1.78–8.36), and tumor status beyond the Milan criteria (p = 0.001; OR = 3.69; 95% CI = 1.77–7.71). In conclusion, in addition to the well-known Milan criteria, human CMV is associated with a lower HCC recurrence rate after LT. However, this tumor suppressive property does not lead to prolonged overall survival, especially in severely immunocompromised patients who are vulnerable to other infections.
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28
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Higdon LE, Schaffert S, Cohen RH, Montez-Rath ME, Lucia M, Saligrama N, Margulies KB, Martinez OM, Tan JC, Davis MM, Khatri P, Maltzman JS. Functional Consequences of Memory Inflation after Solid Organ Transplantation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 207:2086-2095. [PMID: 34551963 PMCID: PMC8492533 DOI: 10.4049/jimmunol.2100405] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/04/2021] [Indexed: 11/19/2022]
Abstract
CMV is a major infectious complication following solid organ transplantation. Reactivation of CMV leads to memory inflation, a process in which CD8 T cells expand over time. Memory inflation is associated with specific changes in T cell function, including increased oligoclonality, decreased cytokine production, and terminal differentiation. To address whether memory inflation during the first year after transplantation in human subjects alters T cell differentiation and function, we employed single-cell-matched TCRαβ and targeted gene expression sequencing. Expanded T cell clones exhibited a terminally differentiated, immunosenescent, and polyfunctional phenotype whereas rare clones were less differentiated. Clonal expansion occurring between pre- and 3 mo posttransplant was accompanied by enhancement of polyfunctionality. In contrast, polyfunctionality and differentiation state were largely maintained between 3 and 12 mo posttransplant. Highly expanded clones had a higher degree of polyfunctionality than rare clones. Thus, CMV-responsive CD8 T cells differentiated during the pre- to posttransplant period then maintained their differentiation state and functional capacity despite posttransplant clonal expansion.
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Affiliation(s)
- Lauren E Higdon
- Department of Medicine/Nephrology, Stanford University, Palo Alto, CA
| | - Steven Schaffert
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA
- Department of Medicine/Biomedical Informatics, Stanford University, Stanford, CA; and
| | - Rachel H Cohen
- Department of Medicine/Nephrology, Stanford University, Palo Alto, CA
| | | | - Marc Lucia
- Department of Surgery, Stanford University, Stanford, CA
| | - Naresha Saligrama
- Department of Microbiology and Immunology, Stanford University, Stanford CA
| | - Kenneth B Margulies
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | | | - Jane C Tan
- Department of Medicine/Nephrology, Stanford University, Palo Alto, CA
| | - Mark M Davis
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford, CA; and
| | - Purvesh Khatri
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA
- Department of Medicine/Biomedical Informatics, Stanford University, Stanford, CA; and
| | - Jonathan S Maltzman
- Department of Medicine/Nephrology, Stanford University, Palo Alto, CA;
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
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29
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Higdon LE, Schaffert S, Huang H, Montez-Rath ME, Lucia M, Jha A, Saligrama N, Margulies KB, Martinez OM, Davis MM, Khatri P, Maltzman JS. Evolution of Cytomegalovirus-Responsive T Cell Clonality following Solid Organ Transplantation. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2021; 207:2077-2085. [PMID: 34551964 PMCID: PMC8492537 DOI: 10.4049/jimmunol.2100404] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Accepted: 08/04/2021] [Indexed: 12/30/2022]
Abstract
CMV infection is a significant complication after solid organ transplantation. We used single cell TCR αβ sequencing to determine how memory inflation impacts clonality and diversity of the CMV-responsive CD8 and CD4 T cell repertoire in the first year after transplantation in human subjects. We observed CD8 T cell inflation but no changes in clonal diversity, indicating homeostatic stability in clones. In contrast, the CD4 repertoire was diverse and stable over time, with no evidence of CMV-responsive CD4 T cell expansion. We identified shared CDR3 TCR motifs among patients but no public CMV-specific TCRs. Temporal changes in clonality in response to transplantation and in the absence of detectable viral reactivation suggest changes in the repertoire immediately after transplantation followed by an expansion with stable clonal competition that may mediate protection.
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Affiliation(s)
- Lauren E Higdon
- Nephrology Division, Department of Medicine, Stanford University, Palo Alto, CA
| | - Steven Schaffert
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA
- Biomedical Informatics Division, Department of Medicine, Stanford University, Stanford, CA
| | - Huang Huang
- Department of Microbiology and Immunology, Stanford University, Stanford CA
| | - Maria E Montez-Rath
- Nephrology Division, Department of Medicine, Stanford University, Palo Alto, CA
| | - Marc Lucia
- Department of Surgery, Stanford University, Stanford, CA
| | - Alokkumar Jha
- Cardiovascular Institute, Stanford University, Stanford, CA
| | - Naresha Saligrama
- Department of Microbiology and Immunology, Stanford University, Stanford CA
| | - Kenneth B Margulies
- Cardiovascular Institute, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA
| | | | - Mark M Davis
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA
- Howard Hughes Medical Institute, Stanford University School of Medicine, Stanford University, Stanford, CA; and
| | - Purvesh Khatri
- Institute for Immunity, Transplantation and Infection, Stanford University, Stanford, CA
- Biomedical Informatics Division, Department of Medicine, Stanford University, Stanford, CA
| | - Jonathan S Maltzman
- Nephrology Division, Department of Medicine, Stanford University, Palo Alto, CA;
- Veterans Affairs Palo Alto Health Care System, Palo Alto, CA
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Abstract
In this essay, we show that 3 distinct approaches to immunological exhaustion coexist and that they only partially overlap, generating potential misunderstandings. Exploring cases ranging from viral infections to cancer, we propose that it is crucial, for experimental and therapeutic purposes, to clarify these approaches and their interconnections so as to make the concept of exhaustion genuinely operational.
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Affiliation(s)
- Hannah Kaminski
- ImmunoConcept, CNRS & University of Bordeaux, Bordeaux, France
| | - Maël Lemoine
- ImmunoConcept, CNRS & University of Bordeaux, Bordeaux, France
| | - Thomas Pradeu
- ImmunoConcept, CNRS & University of Bordeaux, Bordeaux, France
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31
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Cupovic J, Ring SS, Onder L, Colston JM, Lütge M, Cheng HW, De Martin A, Provine NM, Flatz L, Oxenius A, Scandella E, Krebs P, Engeler D, Klenerman P, Ludewig B. Adenovirus vector vaccination reprograms pulmonary fibroblastic niches to support protective inflating memory CD8 + T cells. Nat Immunol 2021; 22:1042-1051. [PMID: 34267375 PMCID: PMC7611414 DOI: 10.1038/s41590-021-00969-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 06/07/2021] [Indexed: 02/07/2023]
Abstract
Pathogens and vaccines that produce persisting antigens can generate expanded pools of effector memory CD8+ T cells, described as memory inflation. While properties of inflating memory CD8+ T cells have been characterized, the specific cell types and tissue factors responsible for their maintenance remain elusive. Here, we show that clinically applied adenovirus vectors preferentially target fibroblastic stromal cells in cultured human tissues. Moreover, we used cell-type-specific antigen targeting to define critical cells and molecules that sustain long-term antigen presentation and T cell activity after adenovirus vector immunization in mice. While antigen targeting to myeloid cells was insufficient to activate antigen-specific CD8+ T cells, genetic activation of antigen expression in Ccl19-cre-expressing fibroblastic stromal cells induced inflating CD8+ T cells. Local ablation of vector-targeted cells revealed that lung fibroblasts support the protective function and metabolic fitness of inflating memory CD8+ T cells in an interleukin (IL)-33-dependent manner. Collectively, these data define a critical fibroblastic niche that underpins robust protective immunity operating in a clinically important vaccine platform.
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Affiliation(s)
- Jovana Cupovic
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Max Planck Institute for Immunobiology and Epigenetics, Freiburg, Germany
| | - Sandra S Ring
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Lucas Onder
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Julia M Colston
- Peter Medawar Building for Pathogen Research, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Mechthild Lütge
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Hung-Wei Cheng
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Angelina De Martin
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Nicholas M Provine
- Peter Medawar Building for Pathogen Research, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - Lukas Flatz
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | | | - Elke Scandella
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Philippe Krebs
- Institute of Pathology, University of Berne, Berne, Switzerland
| | - Daniel Engeler
- Department of Urology, Kantonsspital St. Gallen, St. Gallen, Switzerland
| | - Paul Klenerman
- Peter Medawar Building for Pathogen Research, Nuffield Department of Medicine, University of Oxford, Oxford, UK.
| | - Burkhard Ludewig
- Institute of Immunobiology, Kantonsspital St. Gallen, St. Gallen, Switzerland.
- Institute of Experimental Immunology, University of Zurich, Zurich, Switzerland.
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32
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Tan H, Zhang Q. Analysis of heterogeneity of inflation expectation based on genetic algorithm and time series model. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2021. [DOI: 10.3233/jifs-189487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The heterogeneity of inflation expectations, especially the residents’ inflation expectations, has a great influence on controlling the actual inflation rate and the effective implementation of my country’s monetary policy. In the process of monetary policy formulation, the monetary authorities need to pay more attention to the heterogeneous expectations among microeconomic individuals. This paper introduces the genetic algorithm, a new artificial intelligence method, to analyze the demand for the heterogeneity of inflation expectations and explains the basic steps to use it and how to apply it to explain problems in economics. Moreover, this paper uses a genetic algorithm-based generation overlap model to simulate the dynamic evolution of inflation heterogeneity among residents and the equilibrium selection process of price levels in a wide search space. The results of the simulation experiment show that it is of practical significance to use genetic algorithms to simulate the dynamic process of the heterogeneity of residents’ inflation expectations.
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Affiliation(s)
- Haoyang Tan
- School of Finance and Statistics, Hunan University, Changsha, Hunan, China
| | - Qiang Zhang
- School of Finance and Statistics, Hunan University, Changsha, Hunan, China
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33
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Lin N. Analysis of the impact of inflation expectations based on machine learning intelligent models. JOURNAL OF INTELLIGENT & FUZZY SYSTEMS 2021. [DOI: 10.3233/jifs-189495] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Our country’s economic growth is overly dependent on government investment, and bank credit and money supply lack a strict monitoring mechanism. Therefore, rapid economic growth is always accompanied by inflation risks. In order to study the effect of inflation impact analysis, based on machine learning algorithms, this paper combines artificial intelligence technology to analyze the impact of inflation expectations, and constructs the central bank information disclosure index and inflation expectations index. Moreover, this paper will perform ADF unit root test on the data. In addition, after confirming that the data is stable, this paper uses the Markov Regime Transfer Vector Autoregressive (MSVAR) model and state-dependent impulse response function to test and analyze the effect of China’s central bank communication in guiding the formation of inflation expectations. Through research, we can see that the machine learning algorithm constructed in this paper has significant effects, which can provide a reference for the analysis of the impact of inflation expectations.
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Affiliation(s)
- Nan Lin
- School of Politics and Public Administration, University of Political Science and Law, Beijing, China
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34
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Knight FC, Wilson JT. Engineering Vaccines for Tissue-Resident Memory T Cells. ADVANCED THERAPEUTICS 2021; 4:2000230. [PMID: 33997268 PMCID: PMC8114897 DOI: 10.1002/adtp.202000230] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Indexed: 01/01/2023]
Abstract
In recent years, tissue-resident memory T cells (TRM) have attracted significant attention in the field of vaccine development. Distinct from central and effector memory T cells, TRM cells take up residence in home tissues such as the lung or urogenital tract and are ideally positioned to respond quickly to pathogen encounter. TRM have been found to play a role in the immune response against many globally important infectious diseases for which new or improved vaccines are needed, including influenza and tuberculosis. It is also increasingly clear that TRM play a pivotal role in cancer immunity. Thus, vaccines that can generate this memory T cell population are highly desirable. The field of immunoengineering-that is, the application of engineering principles to study the immune system and design new and improved therapies that harness or modulate immune responses-is ideally poised to provide solutions to this need for next-generation TRM vaccines. This review covers recent developments in vaccine technologies for generating TRM and protecting against infection and cancer, including viral vectors, virus-like particles, and synthetic and natural biomaterials. In addition, it offers critical insights on the future of engineering vaccines for tissue-resident memory T cells.
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Affiliation(s)
- Frances C. Knight
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
| | - John T. Wilson
- Department of Biomedical Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
- Department of Chemical and Biomolecular Engineering, Vanderbilt University, Nashville, Tennessee 37235, United States
- Vanderbilt Institute for Infection, Immunology, and Inflammation, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
- Vanderbilt Center for Immunobiology, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
- Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee 37232, United States
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35
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Caserta S, Pera A. Editorial: Immune Responses to Persistent or Recurrent Antigens: Implications for Immunological Memory and Immunotherapy. Front Immunol 2021; 12:643989. [PMID: 33767711 PMCID: PMC7986121 DOI: 10.3389/fimmu.2021.643989] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2020] [Accepted: 02/01/2021] [Indexed: 01/05/2023] Open
Affiliation(s)
- Stefano Caserta
- Department of Biomedical Sciences, The University of Hull, Hull, United Kingdom
| | - Alejandra Pera
- Immunology and Allergy Group (GC01), Maimonides Institute for Biomedical Research of Cordoba (IMIBIC), Córdoba, Spain.,Department of Cell Biology, Physiology and Immunology, University of Córdoba, Córdoba, Spain
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36
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Pacella I, Cammarata I, Martire C, Brancaccio G, Gaeta GB, Barnaba V, Piconese S. CD8 + T cells specific to apoptosis-associated epitopes are expanded in patients with chronic HBV infection and fibrosis. Liver Int 2021; 41:470-481. [PMID: 33159402 DOI: 10.1111/liv.14720] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2020] [Revised: 09/29/2020] [Accepted: 10/27/2020] [Indexed: 12/16/2022]
Abstract
BACKGROUND & AIMS During chronic viral infections, the apoptosis of activated T cell elicits a CD8+ T cell response directed to those cryptic epitopes that emerge from caspase-cleaved structural proteins. Such response directed to apoptosis-associated epitopes (AEs) contributes to the amplification of immunopathology. METHODS Here, we have analysed through flow cytometry AE-specific CD8+ T cells in patients with chronic hepatitis B virus (HBV) infection, naïve-to-treatment or undergoing nucleos(t)ide-analogue (NUC) therapy. RESULTS We found that AE-specific CD8+ T cell frequencies were significantly increased only in those NUC-treated patients who also presented advanced hepatic fibrosis. Regulatory T cells were also expanded in those patients, and AE-specific, but not HBV-specific, CD8+ T cell frequency positively correlated with Treg percentages. Through multiparameter flow cytometry, multidimensionality reduction and unsupervised clustering analysis, we could identify novel subpopulations among effector memory (em) and emCD45RA+ T cell (Tem and Temra) subsets. CD8+ T cells with distinct specificities differentially populated the subpopulation map: while HBV-specific were mostly contained in the Tem subset, AE-specific CD8+ T cells encompassed naïve, as well as T central memory, Tem and Temra cells. CONCLUSION All together, these findings indicate a link between AE-specific CD8+ T cells and advanced liver fibrosis in patients with chronic HBV infection, and suggest that virus-specific and AE-specific CD8+ T cells exhibit distinct differentiation states and contribute in distinct ways to immunopathology.
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Affiliation(s)
- Ilenia Pacella
- Department of Internal Clinical Sciences, Anaesthesiology and Cardiovascular Sciences, Sapienza Università di Roma, Rome, Italy
| | - Ilenia Cammarata
- Department of Internal Clinical Sciences, Anaesthesiology and Cardiovascular Sciences, Sapienza Università di Roma, Rome, Italy
| | - Carmela Martire
- Department of Internal Clinical Sciences, Anaesthesiology and Cardiovascular Sciences, Sapienza Università di Roma, Rome, Italy
| | | | - Giovanni Battista Gaeta
- Infectious Disease Unit, Department of Mental and Physical Health and Preventive Medicine, University of Campania Luigi Vanvitelli, Naples, Italy
| | - Vincenzo Barnaba
- Department of Internal Clinical Sciences, Anaesthesiology and Cardiovascular Sciences, Sapienza Università di Roma, Rome, Italy.,Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
| | - Silvia Piconese
- Department of Internal Clinical Sciences, Anaesthesiology and Cardiovascular Sciences, Sapienza Università di Roma, Rome, Italy.,Laboratory Affiliated to Istituto Pasteur Italia - Fondazione Cenci Bolognetti, Rome, Italy
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37
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Bowyer G, Sharpe H, Venkatraman N, Ndiaye PB, Wade D, Brenner N, Mentzer A, Mair C, Waterboer T, Lambe T, Dieye T, Mboup S, Hill AVS, Ewer KJ. Reduced Ebola vaccine responses in CMV+ young adults is associated with expansion of CD57+KLRG1+ T cells. J Exp Med 2021; 217:151780. [PMID: 32413101 PMCID: PMC7336307 DOI: 10.1084/jem.20200004] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Revised: 03/16/2020] [Accepted: 04/15/2020] [Indexed: 12/27/2022] Open
Abstract
CMV is associated with immunosenescence and reduced vaccine responses in the elderly (>70 yr). However, the impact of CMV in young adults is less clear. In this study, healthy UK and Senegalese adults aged 18–50 yr (average, 29 yr) were vaccinated with the Ebola vaccine candidate chimpanzee adenovirus type 3–vectored Ebola Zaire vaccine (ChAd3-EBO-Z) and boosted with modified vaccinia Ankara Ebola Zaire–vectored (MVA–EBO-Z) vaccine. CMV carriage was associated with an expansion of phenotypically senescent CD4+ and CD8+ T cells expressing CD57 and killer cell lectin-like receptor G1 (KLRG1), which was negatively associated with vaccine responses in both cohorts. Ebola-specific T cell responses induced by vaccination also contained significantly increased frequencies of terminally differentiated CD57+KLRG1+ cells in CMV seropositive (CMV+) individuals. This study suggests that CMV can also affect vaccine responses in younger adults and may have a particularly marked impact in many developing countries where CMV seroprevalence is almost universal.
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Affiliation(s)
| | - Hannah Sharpe
- The Jenner Institute, University of Oxford, Oxford, UK
| | | | | | - Djibril Wade
- Centre Hospitalier Universitaire le Dantec, Dakar, Senegal
| | - Nicole Brenner
- Infections and Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Alex Mentzer
- The Jenner Institute, University of Oxford, Oxford, UK
| | | | - Tim Waterboer
- Infections and Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany
| | - Teresa Lambe
- The Jenner Institute, University of Oxford, Oxford, UK
| | - Tandakha Dieye
- Centre Hospitalier Universitaire le Dantec, Dakar, Senegal
| | | | | | - Katie J Ewer
- The Jenner Institute, University of Oxford, Oxford, UK
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38
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Chang J. Adenovirus Vectors: Excellent Tools for Vaccine Development. Immune Netw 2021; 21:e6. [PMID: 33728099 PMCID: PMC7937504 DOI: 10.4110/in.2021.21.e6] [Citation(s) in RCA: 47] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/14/2021] [Accepted: 01/17/2021] [Indexed: 12/16/2022] Open
Abstract
Adenovirus was originally used as a vector for gene therapy. In recent years, with the development of the next-generation vectors with increased safety and high immunogenicity to transgene products, its utility as a vaccine vector has continued to increase. Adenovirus-based vaccines are currently being tested not only to prevent various infectious diseases but also to be applied as cancer vaccines. In this review, I discuss the innate and adaptive aspects of the immunological characteristics of adenovirus vectors and further examine the current status of advanced adenovirus-based vaccine development. Various methods that can overcome the limitations of currently used adenoviruses as vaccine vehicles are also discussed. Through this study, I hope that vaccine development using adenovirus vectors will be expedited and more successful.
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Affiliation(s)
- Jun Chang
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, Korea
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39
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Schulien I, Kemming J, Oberhardt V, Wild K, Seidel LM, Killmer S, Sagar, Daul F, Salvat Lago M, Decker A, Luxenburger H, Binder B, Bettinger D, Sogukpinar O, Rieg S, Panning M, Huzly D, Schwemmle M, Kochs G, Waller CF, Nieters A, Duerschmied D, Emmerich F, Mei HE, Schulz AR, Llewellyn-Lacey S, Price DA, Boettler T, Bengsch B, Thimme R, Hofmann M, Neumann-Haefelin C. Characterization of pre-existing and induced SARS-CoV-2-specific CD8 + T cells. Nat Med 2020; 27:78-85. [PMID: 33184509 DOI: 10.1038/s41591-020-01143-2] [Citation(s) in RCA: 246] [Impact Index Per Article: 61.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 10/22/2020] [Indexed: 12/14/2022]
Abstract
Emerging data indicate that SARS-CoV-2-specific CD8+ T cells targeting different viral proteins are detectable in up to 70% of convalescent individuals1-5. However, very little information is currently available about the abundance, phenotype, functional capacity and fate of pre-existing and induced SARS-CoV-2-specific CD8+ T cell responses during the natural course of SARS-CoV-2 infection. Here, we define a set of optimal and dominant SARS-CoV-2-specific CD8+ T cell epitopes. We also perform a high-resolution ex vivo analysis of pre-existing and induced SARS-CoV-2-specific CD8+ T cells, applying peptide-loaded major histocompatibility complex class I (pMHCI) tetramer technology. We observe rapid induction, prolonged contraction and emergence of heterogeneous and functionally competent cross-reactive and induced memory CD8+ T cell responses in cross-sectionally analyzed individuals with mild disease following SARS-CoV-2 infection and three individuals longitudinally assessed for their T cells pre- and post-SARS-CoV-2 infection. SARS-CoV-2-specific memory CD8+ T cells exhibited functional characteristics comparable to influenza-specific CD8+ T cells and were detectable in SARS-CoV-2 convalescent individuals who were seronegative for anti-SARS-CoV-2 antibodies targeting spike (S) and nucleoprotein (N). These results define cross-reactive and induced SARS-CoV-2-specific CD8+ T cell responses as potentially important determinants of immune protection in mild SARS-CoV-2 infection.
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Affiliation(s)
- Isabel Schulien
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Janine Kemming
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Valerie Oberhardt
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Katharina Wild
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Faculty of Chemistry and Pharmacy, University of Freiburg, Freiburg, Germany
| | - Lea M Seidel
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Faculty of Biology, University of Freiburg, Freiburg, Germany.,SGBM - Spemann Graduate School of Biology and Medicine, University of Freiburg, Freiburg, Germany.,Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
| | - Saskia Killmer
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Sagar
- Max Planck Institute of Immunobiology and Epigenetics, Freiburg, Germany
| | - Franziska Daul
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Faculty of Biology, University of Freiburg, Freiburg, Germany
| | - Marilyn Salvat Lago
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Annegrit Decker
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Hendrik Luxenburger
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,IMM-PACT, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Benedikt Binder
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,IMM-PACT, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Dominik Bettinger
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Berta-Ottenstein Programme, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Oezlem Sogukpinar
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Siegbert Rieg
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Marcus Panning
- Institute of Virology, Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Daniela Huzly
- Institute of Virology, Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Martin Schwemmle
- Institute of Virology, Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Georg Kochs
- Institute of Virology, Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Cornelius F Waller
- Department of Haematology, Oncology & Stem Cell Transplantation, Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Alexandra Nieters
- Center for Biobanking-FREEZE-Biobanking, Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Daniel Duerschmied
- Department of Medicine III (Interdisciplinary Medical Intensive Care), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Florian Emmerich
- Institute for Transfusion Medicine and Gene Therapy, Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Henrik E Mei
- German Rheumatism Research Center Berlin (DRFZ), Berlin, Germany
| | | | - Sian Llewellyn-Lacey
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK
| | - David A Price
- Division of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK.,Systems Immunity Research Institute, Cardiff University School of Medicine, Cardiff, UK
| | - Tobias Boettler
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Berta-Ottenstein Programme, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Bertram Bengsch
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.,Signalling Research Centres BIOSS and CIBSS, University of Freiburg, Freiburg, Germany
| | - Robert Thimme
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Maike Hofmann
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
| | - Christoph Neumann-Haefelin
- Department of Medicine II (Gastroenterology, Hepatology, Endocrinology and Infectious Diseases), Freiburg University Medical Center, Faculty of Medicine, University of Freiburg, Freiburg, Germany.
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Samson LD, van den Berg SP, Engelfriet P, Boots AM, Hendriks M, de Rond LG, de Zeeuw-Brouwer ML, Verschuren WM, Borghans JA, Buisman AM, van Baarle D. Limited effect of duration of CMV infection on adaptive immunity and frailty: insights from a 27-year-long longitudinal study. Clin Transl Immunology 2020; 9:e1193. [PMID: 33133599 PMCID: PMC7586993 DOI: 10.1002/cti2.1193] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/18/2020] [Accepted: 09/18/2020] [Indexed: 12/16/2022] Open
Abstract
Objectives Cytomegalovirus infection is thought to affect the immune system and to impact general health during ageing. Higher CMV‐specific antibody levels in the elderly are generally assumed to reflect experienced viral reactivation during life. Furthermore, high levels of terminally differentiated and CMV‐specific T cells are hallmarks of CMV infection, which are thought to expand over time, a process also referred to as memory inflation. Methods We studied CMV‐specific antibody levels over ~ 27 years in 268 individuals (aged 60–89 years at study endpoint), and to link duration of CMV infection to T‐cell numbers, CMV‐specific T‐cell functions, frailty and cardiovascular disease at study endpoint. Results In our study, 136/268 individuals were long‐term CMV seropositive and 19 seroconverted during follow‐up (seroconversion rate: 0.56%/year). CMV‐specific antibody levels increased slightly over time. However, we did not find an association between duration of CMV infection and CMV‐specific antibody levels at study endpoint. No clear association between duration of CMV infection and the size and function of the memory T‐cell pool was observed. Elevated CMV‐specific antibody levels were associated with the prevalence of cardiovascular disease but not with frailty. Age at CMV seroconversion was positively associated with CMV‐specific antibody levels, memory CD4+ T‐cell numbers and frailty. Conclusion Cytomegalovirus‐specific memory T cells develop shortly after CMV seroconversion but do not seem to further increase over time. Age‐related effects other than duration of CMV infection seem to contribute to CMV‐induced changes in the immune system. Although CMV‐specific immunity is not evidently linked to frailty, it tends to associate with higher prevalence of cardiovascular disease.
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Affiliation(s)
- Leonard Daniël Samson
- Centre for Infectious Disease Control National Institute for Public Health and the Environment Bilthoven The Netherlands.,Centre for Nutrition, Prevention and Health Services National Institute for Public Health and the Environment Bilthoven The Netherlands.,Department of Rheumatology and Clinical Immunology University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Sara Ph van den Berg
- Centre for Infectious Disease Control National Institute for Public Health and the Environment Bilthoven The Netherlands.,Center for Translational Immunology University Medical Center Utrecht Utrecht The Netherlands
| | - Peter Engelfriet
- Centre for Nutrition, Prevention and Health Services National Institute for Public Health and the Environment Bilthoven The Netherlands
| | - Annemieke Mh Boots
- Department of Rheumatology and Clinical Immunology University Medical Center Groningen University of Groningen Groningen The Netherlands
| | - Marion Hendriks
- Centre for Infectious Disease Control National Institute for Public Health and the Environment Bilthoven The Netherlands
| | - Lia Gh de Rond
- Centre for Infectious Disease Control National Institute for Public Health and the Environment Bilthoven The Netherlands
| | - Mary-Lène de Zeeuw-Brouwer
- Centre for Infectious Disease Control National Institute for Public Health and the Environment Bilthoven The Netherlands
| | - Wm Monique Verschuren
- Centre for Nutrition, Prevention and Health Services National Institute for Public Health and the Environment Bilthoven The Netherlands.,Julius Center for Health Sciences and Primary Care University Medical Center Utrecht The Netherlands
| | - José Am Borghans
- Center for Translational Immunology University Medical Center Utrecht Utrecht The Netherlands
| | - Anne-Marie Buisman
- Centre for Infectious Disease Control National Institute for Public Health and the Environment Bilthoven The Netherlands
| | - Debbie van Baarle
- Centre for Infectious Disease Control National Institute for Public Health and the Environment Bilthoven The Netherlands.,Center for Translational Immunology University Medical Center Utrecht Utrecht The Netherlands
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Abassi L, Cicin-Sain L. The avid competitors of memory inflation. Curr Opin Virol 2020; 44:162-168. [PMID: 33039898 DOI: 10.1016/j.coviro.2020.08.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 08/14/2020] [Accepted: 08/16/2020] [Indexed: 12/18/2022]
Abstract
Cytomegaloviruses (CMV) coevolve with their hosts and latently persist in the vast majority of adult mammals. Therefore, persistent T-cell responses to CMV antigens during virus latency offer a fascinating perspective on the evolution of the T-cell repertoire in natural settings. We addressed here the life-long interactions between CMV antigens presented on MHC-I molecules and the CD8 T-cell response. We present the mechanistic evidence from the murine model of CMV infection and put it in context of clinical laboratory results. We will highlight the remarkable parallels in T-cell responses between the two biological systems, and focus in particular on memory inflation as a result of competitive processes, both between viral antigenic peptides and between T-cell receptors on the host's cytotoxic lymphocytes.
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Affiliation(s)
- Leila Abassi
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research (HZI), Germany
| | - Luka Cicin-Sain
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research (HZI), Germany; Cluster of Excellence RESIST (EXC 2155), Hannover Medical School (MHH), Germany; Centre for Individualised Infection Medicine (CIIM), A Joint Venture of HZI and MHH, Germany; German Centre for Infection Research (DZIF), Hannover-Braunschweig Site, Germany.
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42
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Roubalová K, Němečková Š, Kryštofová J, Hainz P, Pumannová M, Hamšíková E. Antigenic competition in the generation of multi-virus-specific cell lines for immunotherapy of human cytomegalovirus, polyomavirus BK, Epstein-Barr virus and adenovirus infection in haematopoietic stem cell transplant recipients. Immunol Lett 2020; 228:64-69. [PMID: 33031870 DOI: 10.1016/j.imlet.2020.09.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 09/10/2020] [Accepted: 09/24/2020] [Indexed: 11/16/2022]
Abstract
Adoptive transfer of multivirus-specific T cell lines (MVST) is an advanced tool for immunotherapy of virus infections after hematopoietic stem cell transplantation (HSCT). Their preparation includes activation of donor virus-specific T cells by the mixture of oligopeptides derived from immunodominant antigens of several most harmful viruses, i.e. human cytomegalovirus (HCMV), polyomavirus BK (BKV), Epstein-Barr virus (EBV) and adenovirus (ADV). The aim of our study was to find out whether antigenic competition may have an impact on the expansion of virus-specific T cells. MVST from several heathy blood donors were generated using a pulse of overlapping oligopeptides (PepMixes™, derived from the IE1 and pp65 CMV antigens, VP1 and LTAG BKV antigens, BZLF1 and EBNA1 proteins of EBV and hexon protein from ADV) and short time culture in the presence of IL-7 and IL-4. The amount of virus-specific T cells in MVST was measured by ELISPOT and flow cytometry after re-stimulation with individual antigens. To evaluate antigenic competition, MVST were expanded either with a complete set of antigens or with the mixture lacking some of them. MVST expanded with the antigen mixture including CMV antigens contained a lower proportion of the T cells of other antigen specificities. A similar inhibitory effect was not apparent for EBV-derived peptides. The competitive effect of CMV antigens was most pronounced in MVST from CMV-seropositive donors and was mediated by both IE1 and pp65-derived peptides. Antigenic competition did not influence the phenotype of either CMV- or BKV-specific T cells. Both T cell populations had an effector memory phenotype (CD45RO+, CD27-, CCR7-). However, CMV-specific T cells preferentially consist of CD8+ while in BKV-specific T cells, the CD4+ phenotype predominated. Modification of the MVST manufacture protocol to prevent antigenic competition may increase the efficacy of MVST in therapy of BKV infections in HSCT recipients.
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Affiliation(s)
- Kateřina Roubalová
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic.
| | - Šárka Němečková
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Jitka Kryštofová
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Petr Hainz
- Department of Immunology, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
| | - Markéta Pumannová
- National Reference Laboratory for Herpesviruses, National Institute of Public Health, Prague, Czech Republic
| | - Eva Hamšíková
- National Reference Laboratory for Papillomaviruses and Polyomaviruses, Institute of Hematology and Blood Transfusion, Prague, Czech Republic
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43
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Fornara C, Furione M, Zavaglio F, Arossa A, Spinillo A, Gerna G, Lilleri D. Slow cytomegalovirus-specific CD4 + and CD8 + T-cell differentiation: 10-year follow-up of primary infection in a small number of immunocompetent hosts. Eur J Immunol 2020; 51:253-256. [PMID: 32860628 DOI: 10.1002/eji.202048772] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 07/21/2020] [Accepted: 08/28/2020] [Indexed: 12/18/2022]
Abstract
Differentiation of human cytomegalovirus specific T cells is a slow process requiring years. In the acute phase, EM predominate; subsequently, no contraction occurs (memory inflation) and TEMRA increase, especially among CD8+ T cells, while few LTM T cells appear. After some years, LTM stabilizes and predominate among CD4+ .
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Affiliation(s)
- Chiara Fornara
- Laboratorio Genetica-Trapiantologia e Malattie cardiovascolari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.,Laboratorio Biochimica-Biotecnologie e Diagnostica avanzata, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Milena Furione
- Virologia Molecolare, Microbiologia e Virologia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Federica Zavaglio
- Laboratorio Genetica-Trapiantologia e Malattie cardiovascolari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.,Laboratorio Biochimica-Biotecnologie e Diagnostica avanzata, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Alessia Arossa
- Ostetricia e Ginecologia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Arsenio Spinillo
- Ostetricia e Ginecologia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Giuseppe Gerna
- Laboratorio Genetica-Trapiantologia e Malattie cardiovascolari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
| | - Daniele Lilleri
- Laboratorio Genetica-Trapiantologia e Malattie cardiovascolari, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy.,Laboratorio Biochimica-Biotecnologie e Diagnostica avanzata, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy
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44
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Davenport B, Eberlein J, Nguyen TT, Victorino F, van der Heide V, Kuleshov M, Ma'ayan A, Kedl R, Homann D. Chemokine Signatures of Pathogen-Specific T Cells II: Memory T Cells in Acute and Chronic Infection. THE JOURNAL OF IMMUNOLOGY 2020; 205:2188-2206. [PMID: 32948682 DOI: 10.4049/jimmunol.2000254] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Accepted: 08/07/2020] [Indexed: 12/20/2022]
Abstract
Pathogen-specific memory T cells (TM) contribute to enhanced immune protection under conditions of reinfection, and their effective recruitment into a recall response relies, in part, on cues imparted by chemokines that coordinate their spatiotemporal positioning. An integrated perspective, however, needs to consider TM as a potentially relevant chemokine source themselves. In this study, we employed a comprehensive transcriptional/translational profiling strategy to delineate the identities, expression patterns, and dynamic regulation of chemokines produced by murine pathogen-specific TM CD8+TM, and to a lesser extent CD4+TM, are a prodigious source for six select chemokines (CCL1/3/4/5, CCL9/10, and XCL1) that collectively constitute a prominent and largely invariant signature across acute and chronic infections. Notably, constitutive CCL5 expression by CD8+TM serves as a unique functional imprint of prior antigenic experience; induced CCL1 production identifies highly polyfunctional CD8+ and CD4+TM subsets; long-term CD8+TM maintenance is associated with a pronounced increase of XCL1 production capacity; chemokines dominate the earliest stages of the CD8+TM recall response because of expeditious synthesis/secretion kinetics (CCL3/4/5) and low activation thresholds (CCL1/3/4/5/XCL1); and TM chemokine profiles modulated by persisting viral Ags exhibit both discrete functional deficits and a notable surplus. Nevertheless, recall responses and partial virus control in chronic infection appear little affected by the absence of major TM chemokines. Although specific contributions of TM-derived chemokines to enhanced immune protection therefore remain to be elucidated in other experimental scenarios, the ready visualization of TM chemokine-expression patterns permits a detailed stratification of TM functionalities that may be correlated with differentiation status, protective capacities, and potential fates.
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Affiliation(s)
- Bennett Davenport
- Barbara Davis Center for Childhood Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029.,Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Jens Eberlein
- Barbara Davis Center for Childhood Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Tom T Nguyen
- Barbara Davis Center for Childhood Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Francisco Victorino
- Barbara Davis Center for Childhood Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Verena van der Heide
- Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029.,Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Maxim Kuleshov
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029; and.,Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Avi Ma'ayan
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029; and.,Mount Sinai Center for Bioinformatics, Icahn School of Medicine at Mount Sinai, New York, NY 10029
| | - Ross Kedl
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045
| | - Dirk Homann
- Barbara Davis Center for Childhood Diabetes, University of Colorado Anschutz Medical Campus, Aurora, CO 80045; .,Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Department of Anesthesiology, University of Colorado Anschutz Medical Campus, Aurora, CO 80045.,Diabetes, Obesity and Metabolism Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029.,Precision Immunology Institute, Icahn School of Medicine at Mount Sinai, New York, NY
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45
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Takamura S. Impact of multiple hits with cognate antigen on memory CD8+ T-cell fate. Int Immunol 2020; 32:571-581. [PMID: 32506114 DOI: 10.1093/intimm/dxaa039] [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: 04/02/2020] [Accepted: 06/03/2020] [Indexed: 12/17/2022] Open
Abstract
Antigen-driven activation of CD8+ T cells results in the development of a robust anti-pathogen response and ultimately leads to the establishment of long-lived memory T cells. During the primary response, CD8+ T cells interact multiple times with cognate antigen on distinct types of antigen-presenting cells. The timing, location and context of these antigen encounters significantly impact the differentiation programs initiated in the cells. Moderate re-activation in the periphery promotes the establishment of the tissue-resident memory T cells that serve as sentinels at the portal of pathogen entry. Under some circumstances, moderate re-activation of T cells in the periphery can result in the excessive expansion and accumulation of circulatory memory T cells, a process called memory inflation. In contrast, excessive re-activation stimuli generally impede conventional T-cell differentiation programs and can result in T-cell exhaustion. However, these conditions can also elicit a small population of exhausted T cells with a memory-like signature and self-renewal capability that are capable of responding to immunotherapy, and restoration of functional activity. Although it is clear that antigen re-encounter during the primary immune response has a significant impact on memory T-cell development, we still do not understand the molecular details that drive these fate decisions. Here, we review our understanding of how antigen encounters and re-activation events impact the array of memory CD8+ T-cell subsets subsequently generated. Identification of the molecular programs that drive memory T-cell generation will advance the development of new vaccine strategies that elicit high-quality CD8+ T-cell memory.
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Affiliation(s)
- Shiki Takamura
- Department of Immunology, Faculty of Medicine, Kindai University, Ohno-Higashi, Osaka-Sayama, Osaka, Japan
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46
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Healy ZR, Weinhold KJ, Murdoch DM. Transcriptional Profiling of CD8+ CMV-Specific T Cell Functional Subsets Obtained Using a Modified Method for Isolating High-Quality RNA From Fixed and Permeabilized Cells. Front Immunol 2020; 11:1859. [PMID: 32983102 PMCID: PMC7492549 DOI: 10.3389/fimmu.2020.01859] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Accepted: 07/10/2020] [Indexed: 01/04/2023] Open
Abstract
Previous studies suggest that the presence of antigen-specific polyfunctional T cells is correlated with improved pathogen clearance, disease control, and clinical outcomes; however, the molecular mechanisms responsible for the generation, function, and survival of polyfunctional T cells remain unknown. The study of polyfunctional T cells has been, in part, limited by the need for intracellular cytokine staining (ICS), necessitating fixation and cell membrane permeabilization that leads to unacceptable degradation of RNA. Adopting elements from prior research efforts, we developed and optimized a modified protocol for the isolation of high-quality RNA (i.e., RIN > 7) from primary human T cells following aldehyde-fixation, detergent-based permeabilization, intracellular cytokines staining, and sorting. Additionally, this method also demonstrated utility preserving RNA when staining for transcription factors. This modified protocol utilizes an optimized combination of an RNase inhibitor and high-salt buffer that is cost-effective while maintaining the ability to identify and resolve cell populations for sorting. Overall, this protocol resulted in minimal loss of RNA integrity, quality, and quantity during cytoplasmic staining of cytokines and subsequent flourescence-activated cell sorting. Using this technique, we obtained the transcriptional profiles of functional subsets (i.e., non-functional, monofunctional, bifunctional, polyfunctional) of CMV-specific CD8+T cells. Our analyses demonstrated that these functional subsets are molecularly distinct, and that polyfunctional T cells are uniquely enriched for transcripts involved in viral response, inflammation, cell survival, proliferation, and metabolism when compared to monofunctional cells. Polyfunctional T cells demonstrate reduced activation-induced cell death and increased proliferation after antigen re-challenge. Further in silico analysis of transcriptional data suggested a critical role for STAT5 transcriptional activity in polyfunctional cell activation. Pharmacologic inhibition of STAT5 was associated with a significant reduction in polyfunctional cell cytokine expression and proliferation, demonstrating the requirement of STAT5 activity not only for proliferation and cell survival, but also cytokine expression. Finally, we confirmed this association between CMV-specific CD8+ polyfunctionality with STAT5 signaling also exists in immunosuppressed transplant recipients using single cell transcriptomics, indicating that results from this study may translate to this vulnerable patient population. Collectively, these results shed light on the mechanisms governing polyfunctional T cell function and survival and may ultimately inform multiple areas of immunology, including but not limited to the development of new vaccines, CAR-T cell therapies, and adoptive T cell transfer.
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Affiliation(s)
- Zachary R Healy
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Duke University Hospital, Durham, NC, United States
| | - Kent J Weinhold
- Department of Surgery, Duke University School of Medicine, Durham, NC, United States
| | - David M Murdoch
- Division of Pulmonary and Critical Care Medicine, Department of Medicine, Duke University Hospital, Durham, NC, United States
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47
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Kasakovski D, Zeng X, Lai J, Yu Z, Yao D, Chen S, Zha X, Li Y, Xu L. Characterization of
KIR
+
NKG2A
+ Eomes−
NK
‐like
CD8
+ T cells and their decline with age in healthy individuals. CYTOMETRY PART B-CLINICAL CYTOMETRY 2020; 100:467-475. [PMID: 32830898 DOI: 10.1002/cyto.b.21945] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2020] [Revised: 07/03/2020] [Accepted: 07/21/2020] [Indexed: 12/15/2022]
Affiliation(s)
- Dimitri Kasakovski
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Department of HematologyFirst Affiliated Hospital, Jinan University Guangzhou China
| | - Xiangbo Zeng
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Department of HematologyFirst Affiliated Hospital, Jinan University Guangzhou China
| | - Jing Lai
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Department of HematologyFirst Affiliated Hospital, Jinan University Guangzhou China
| | - Zhi Yu
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Department of HematologyFirst Affiliated Hospital, Jinan University Guangzhou China
| | - Danlin Yao
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Department of HematologyFirst Affiliated Hospital, Jinan University Guangzhou China
| | - Shaohua Chen
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Department of HematologyFirst Affiliated Hospital, Jinan University Guangzhou China
| | - Xianfeng Zha
- Department of Clinical Laboratory, First Affiliated HospitalJinan University Guangzhou China
| | - Yangqiu Li
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Department of HematologyFirst Affiliated Hospital, Jinan University Guangzhou China
| | - Ling Xu
- Key Laboratory for Regenerative Medicine of Ministry of Education, Institute of Hematology, Department of HematologyFirst Affiliated Hospital, Jinan University Guangzhou China
- The Clinical Medicine Postdoctoral Research StationJinan University Guangzhou China
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48
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Talepoor AG, Fouladseresht H, Khosropanah S, Doroudchi M. Immune-Inflammation in Atherosclerosis: A New Twist in an Old Tale. Endocr Metab Immune Disord Drug Targets 2020; 20:525-545. [DOI: 10.2174/1871530319666191016095725] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 08/26/2019] [Accepted: 09/23/2019] [Indexed: 12/27/2022]
Abstract
Background and Objective:Atherosclerosis, a chronic and progressive inflammatory disease, is triggered by the activation of endothelial cells followed by infiltration of innate and adaptive immune cells including monocytes and T cells in arterial walls. Major populations of T cells found in human atherosclerotic lesions are antigen-specific activated CD4+ effectors and/or memory T cells from Th1, Th17, Th2 and Treg subsets. In this review, we will discuss the significance of T cell orchestrated immune inflammation in the development and progression of atherosclerosis.Discussion:Pathogen/oxidative stress/lipid induced primary endothelial wound cannot develop to a full-blown atherosclerotic lesion in the absence of chronically induced inflammation. While the primary inflammatory response might be viewed as a lone innate response, the persistence of such a profound response over time must be (and is) associated with diverse local and systemic T cell responses. The interplay between T cells and innate cells contributes to a phenomenon called immuneinflammation and has an impact on the progression and outcome of the lesion. In recent years immuneinflammation, an old term, has had a comeback in connecting the puzzle pieces of chronic inflammatory diseases.Conclusion:Taking one-step back and looking from afar at the players of immune-inflammation may help us provide a broader perspective of these complicated interactions. This may lead to the identification of new drug targets and the development of new therapies as well as preventative measures.
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Affiliation(s)
- Atefe Ghamar Talepoor
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamed Fouladseresht
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Shahdad Khosropanah
- Department of Cardiology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mehrnoosh Doroudchi
- Department of Immunology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
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49
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Tcf1 + cells are required to maintain the inflationary T cell pool upon MCMV infection. Nat Commun 2020; 11:2295. [PMID: 32385253 PMCID: PMC7211020 DOI: 10.1038/s41467-020-16219-3] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 04/22/2020] [Indexed: 01/07/2023] Open
Abstract
Cytomegalovirus-based vaccine vectors offer interesting opportunities for T cell-based vaccination purposes as CMV infection induces large numbers of functional effector-like cells that accumulate in peripheral tissues, a process termed memory inflation. Maintenance of high numbers of peripheral CD8 T cells requires continuous replenishment of the inflationary T cell pool. Here, we show that the inflationary T cell population contains a small subset of cells expressing the transcription factor Tcf1. These Tcf1+ cells resemble central memory T cells and are proliferation competent. Upon sensing viral reactivation events, Tcf1+ cells feed into the pool of peripheral Tcf1− cells and depletion of Tcf1+ cells hampers memory inflation. TCR repertoires of Tcf1+ and Tcf1− populations largely overlap, with the Tcf1+ population showing higher clonal diversity. These data show that Tcf1+ cells are necessary for sustaining the inflationary T cell response, and upholding this subset is likely critical for the success of CMV-based vaccination approaches. Upon infection with cytomegalovirus, CD8+ T cells undergo prolific expansion in a process known as memory inflation. Here the authors define a population of Tcf1 expressing cells within the inflationary pool that is critical in fuelling this process.
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50
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Herbein G, Nehme Z. Tumor Control by Cytomegalovirus: A Door Open for Oncolytic Virotherapy? MOLECULAR THERAPY-ONCOLYTICS 2020; 17:1-8. [PMID: 32300639 PMCID: PMC7150429 DOI: 10.1016/j.omto.2020.03.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Belonging to the herpesviridae family, human cytomegalovirus (HCMV) is a well-known ubiquitous pathogen that establishes a lifelong infection in humans. Recently, a beneficial tumor-cytoreductive role of CMV infection has been defined in human and animal models. Described as a potential anti-tumoral activity, HCMV modulates the tumor microenvironment mainly by inducing cell death through apoptosis and prompting a robust stimulatory effect on the immune cells infiltrating the tumor tissue. However, major current limitations embrace transient protective effect and a viral dissemination potential in immunosuppressed hosts. The latter could be counteracted through direct viral intratumoral delivery, use of non-human strains, or even defective CMV vectors to ascertain transformed cells-selective tropism. This potential oncolytic activity could be complemented by tackling further platforms, namely combination with immune checkpoint inhibitors or epigenetic therapy, as well as the use of second-generation chimeric oncovirus, for instance HCMV/HSV-1 oncolytic virus. Overall, preliminary data support the use of CMV in viral oncolytic therapy as a viable option, establishing thus a potential new modality, where further assessment through extensive basic research armed by molecular biotechnology is compulsory.
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Affiliation(s)
- Georges Herbein
- Department Pathogens & Inflammation-EPILAB, UPRES EA4266, University of Franche-Comté, University of Bourgogne Franche-Comté, 25030 Besançon, France.,Department of Virology, CHRU Besancon, 25030 Besançon, France
| | - Zeina Nehme
- Department Pathogens & Inflammation-EPILAB, UPRES EA4266, University of Franche-Comté, University of Bourgogne Franche-Comté, 25030 Besançon, France.,Université Libanaise 1003, Beirut, Lebanon
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