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Battistone MA, Elizagaray ML, Barrachina F, Ottino K, Mendelsohn AC, Breton S. Immunoregulatory mechanisms between epithelial clear cells and mononuclear phagocytes in the epididymis. Andrology 2024; 12:949-963. [PMID: 37572347 PMCID: PMC10859549 DOI: 10.1111/andr.13509] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 08/01/2023] [Accepted: 08/03/2023] [Indexed: 08/14/2023]
Abstract
INTRODUCTION One of the most intriguing aspects of male reproductive physiology is the ability of the epididymis to prevent the mounting of immune responses against the onslaught of foreign antigens carried by spermatozoa while initiating very efficient immune responses versus stressors. Epithelial clear cells are strategically positioned to work in a concerted manner with region-specific heterogeneous subsets of mononuclear phagocytes to survey the epididymal barrier and regulate the balance between inflammation and immune tolerance in the post-testicular environment. OBJECTIVE This review aims to describe how clear cells communicate with mononuclear phagocytes to contribute to the unique immune environment in which sperm mature and are stored in the epididymis. MATERIALS/METHODS A comprehensive systematic review was performed. PubMed was searched for articles specific to clear cells, mononuclear phagocytes, and epididymis. Articles that did not specifically address the target material were excluded. RESULTS In this review, we discuss the unexpected roles of clear cells, including the transfer of new proteins to spermatozoa via extracellular vesicles and nanotubes as they transit along the epididymal tubule; and we summarize the immune phenotype, morphology, and antigen capturing, processing, and presenting abilities of mononuclear phagocytes. Moreover, we present the current knowledge of immunoregulatory mechanisms by which clear cells and mononuclear phagocytes may contribute to the immune-privileged environment optimal for sperm maturation and storage. DISCUSSION AND CONCLUSION Notably, we provide an in-depth characterization of clear cell-mononuclear phagocyte communication networks in the steady-state epididymis and in the presence of injury. This review highlights crucial concepts of mucosal immunology and cellcell interactions, all of which are critical but understudied facets of human male reproductive health.
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Affiliation(s)
- MA Battistone
- Program in Membrane Biology, Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - ML Elizagaray
- Program in Membrane Biology, Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - F Barrachina
- Program in Membrane Biology, Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - K Ottino
- Program in Membrane Biology, Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - AC Mendelsohn
- Program in Membrane Biology, Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA, United States
| | - S Breton
- Centre Hospitalier Universitaire de Québec-Research Center, Department of Obstetrics, Gynecology, and Reproduction, Faculty of Medicine, Université Laval, Québec (Québec), Canada
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Braverman J, Monk IR, Zhang H, Stinear TP, Wakim LM. Polyclonal but not monoclonal circulating memory CD4 + T cells attenuate the severity of Staphylococcus aureus bacteremia. Front Immunol 2024; 15:1417220. [PMID: 38868766 PMCID: PMC11167101 DOI: 10.3389/fimmu.2024.1417220] [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: 04/14/2024] [Accepted: 05/13/2024] [Indexed: 06/14/2024] Open
Abstract
Staphylococcus aureus bacteremia causes significant morbidity and mortality. Treatment of staphylococcal infections is hindered by widespread antibiotic resistance, and attempts to develop an S. aureus vaccine have failed. Improved S. aureus treatment and infection prevention options require a deeper understanding of the correlates of protective immunity. CD4+ T cells have been identified as key orchestrators in the defense against S. aureus, but uncertainties persist regarding the subset, polarity, and breadth of the memory CD4+ T-cell pool required for protection. Here, using a mouse model of systemic S. aureus infection, we discovered that the breadth of bacterium-specific memory CD4+ T-cell pool is a critical factor for protective immunity against invasive S. aureus infections. Seeding mice with a monoclonal bacterium-specific circulating memory CD4+ T-cell population failed to protect against systemic S. aureus infection; however, the introduction of a polyclonal and polyfunctional memory CD4+ T-cell pool significantly reduced the bacterial burden. Our findings support the development of a multi-epitope T-cell-based S. aureus vaccine, as a strategy to mitigate the severity of S. aureus bacteremia.
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Affiliation(s)
| | | | | | | | - Linda M. Wakim
- Department of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
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Ma Y, Jiang T, Zhu X, Xu Y, Wan K, Zhang T, Xie M. Efferocytosis in dendritic cells: an overlooked immunoregulatory process. Front Immunol 2024; 15:1415573. [PMID: 38835772 PMCID: PMC11148234 DOI: 10.3389/fimmu.2024.1415573] [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: 04/10/2024] [Accepted: 05/09/2024] [Indexed: 06/06/2024] Open
Abstract
Efferocytosis, the process of engulfing and removing apoptotic cells, plays an essential role in preserving tissue health and averting undue inflammation. While macrophages are primarily known for this task, dendritic cells (DCs) also play a significant role. This review delves into the unique contributions of various DC subsets to efferocytosis, highlighting the distinctions in how DCs and macrophages recognize and handle apoptotic cells. It further explores how efferocytosis influences DC maturation, thereby affecting immune tolerance. This underscores the pivotal role of DCs in orchestrating immune responses and sustaining immune equilibrium, providing new insights into their function in immune regulation.
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Affiliation(s)
- Yanyan Ma
- Department of Emergency and Critical Care Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Tangxing Jiang
- Department of Emergency Medicine, Qilu Hospital of Shandong University, Jinan, China
| | - Xun Zhu
- Department of Emergency and Critical Care Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Yizhou Xu
- Department of Emergency and Critical Care Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Ke Wan
- Department of Emergency and Critical Care Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Tingxuan Zhang
- Department of Emergency and Critical Care Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Miaorong Xie
- Department of Emergency and Critical Care Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
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Reuveni D, Assi S, Gore Y, Brazowski E, Leung PSC, Shalit T, Gershwin ME, Zigmond E. Conventional type 1 dendritic cells are essential for the development of primary biliary cholangitis. Liver Int 2024. [PMID: 38700427 DOI: 10.1111/liv.15961] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 02/15/2024] [Accepted: 04/19/2024] [Indexed: 05/05/2024]
Abstract
BACKGROUND & AIMS Primary biliary cholangitis (PBC) is a progressive-cholestatic autoimmune liver disease. Dendritic cells (DC) are professional antigen-presenting cells and their prominent presence around damaged bile ducts of PBC patients are documented. cDC1 is a rare subset of DC known for its cross-presentation abilities and interleukin 12 production. Our aim was to assess the role of cDC1 in the pathogenesis of PBC. METHODS We utilized an inducible murine model of PBC and took advantage of the DC reporter mice Zbtb46gfp and the Batf3-/- mice that specifically lack the cDC1 subset. cDC1 cells were sorted from blood of PBC patients and healthy individuals and subjected to Bulk-MARS-seq transcriptome analysis. RESULTS Histopathology assessment demonstrated peri-portal inflammation in wild type (WT) mice, whereas only minor abnormalities were observed in Batf3-/- mice. Flow cytometry analysis revealed a two-fold reduction in hepatic CD8/CD4 T cells ratio in Batf3-/- mice, suggesting reduced intrahepatic CD8 T cells expansion. Histological evidence of portal fibrosis was detected only in the WT but not in Batf3-/- mice. This finding was supported by decreased expression levels of pro-fibrotic genes in the livers of Batf3-/- mice. Transcriptome analysis of human cDC1, revealed 78 differentially expressed genes between PBC patients and controls. Genes related to antigen presentation, TNF and IFN signalling and mitochondrial dysfunction were significantly increased in cDC1 isolated from PBC patients. CONCLUSION Our data illustrated the contribution the cDC1 subset in the pathogenesis of PBC and provides a novel direction for immune based cell-specific targeted therapeutic approach in PBC.
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Affiliation(s)
- Debby Reuveni
- The Research Center for Digestive Tract and Liver Diseases, Department of Gastroenterology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Center for Liver Diseases, Chaim Sheba Medical Center, Ramat Gan, Israel
| | - Siwar Assi
- The Research Center for Digestive Tract and Liver Diseases, Department of Gastroenterology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Yael Gore
- The Research Center for Digestive Tract and Liver Diseases, Department of Gastroenterology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - Eli Brazowski
- Department of Pathology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Patrick S C Leung
- Division of Rheumatology, University of California at Davis, Davis, California, USA
| | - Tali Shalit
- The Mantoux Bioinformatics Institute of the Nancy and Stephen Grand Israel National Center for Personalized Medicine, Weizmann Institute of Science, Rehovot, Israel
| | - Merrill E Gershwin
- Division of Rheumatology, University of California at Davis, Davis, California, USA
| | - Ehud Zigmond
- The Research Center for Digestive Tract and Liver Diseases, Department of Gastroenterology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
- The Center for Liver Diseases, Chaim Sheba Medical Center, Ramat Gan, Israel
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5
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Pei L, Hickman HD. T Cell Surveillance during Cutaneous Viral Infections. Viruses 2024; 16:679. [PMID: 38793562 PMCID: PMC11126121 DOI: 10.3390/v16050679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2024] [Revised: 04/18/2024] [Accepted: 04/20/2024] [Indexed: 05/26/2024] Open
Abstract
The skin is a complex tissue that provides a strong physical barrier against invading pathogens. Despite this, many viruses can access the skin and successfully replicate in either the epidermal keratinocytes or dermal immune cells. In this review, we provide an overview of the antiviral T cell biology responding to cutaneous viral infections and how these responses differ depending on the cellular targets of infection. Much of our mechanistic understanding of T cell surveillance of cutaneous infection has been gained from murine models of poxvirus and herpesvirus infection. However, we also discuss other viral infections, including flaviviruses and papillomaviruses, in which the cutaneous T cell response has been less extensively studied. In addition to the mechanisms of successful T cell control of cutaneous viral infection, we highlight knowledge gaps and future directions with possible impact on human health.
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Affiliation(s)
| | - Heather D. Hickman
- Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD 20892, USA;
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Pearson JA, Hu Y, Peng J, Wong FS, Wen L. TLR5-deficiency controls dendritic cell subset development in an autoimmune diabetes-susceptible model. Front Immunol 2024; 15:1333967. [PMID: 38482010 PMCID: PMC10935730 DOI: 10.3389/fimmu.2024.1333967] [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: 11/06/2023] [Accepted: 02/06/2024] [Indexed: 03/17/2024] Open
Abstract
Introduction The incidence of the autoimmune disease, type 1 diabetes (T1D), has been increasing worldwide and recent studies have shown that the gut microbiota are associated with modulating susceptibility to T1D. Toll-like receptor 5 (TLR5) recognizes bacterial flagellin and is widely expressed on many cells, including dendritic cells (DCs), which are potent antigen-presenting cells (APCs). TLR5 modulates susceptibility to obesity and alters metabolism through gut microbiota; however, little is known about the role TLR5 plays in autoimmunity, especially in T1D. Methods To fill this knowledge gap, we generated a TLR5-deficient non-obese diabetic (NOD) mouse, an animal model of human T1D, for study. Results We found that TLR5-deficiency led to a reduction in CD11c+ DC development in utero, prior to microbial colonization, which was maintained into adulthood. This was associated with a bias in the DC populations expressing CD103, with or without CD8α co-expression, and hyper-secretion of different cytokines, both in vitro (after stimulation) and directly ex vivo. We also found that TLR5-deficient DCs were able to promote polyclonal and islet antigen-specific CD4+ T cell proliferation and proinflammatory cytokine secretion. Interestingly, only older TLR5-deficient NOD mice had a greater risk of developing spontaneous T1D compared to wild-type mice. Discussion In summary, our data show that TLR5 modulates DC development and enhances cytokine secretion and diabetogenic CD4+ T cell responses. Further investigation into the role of TLR5 in DC development and autoimmune diabetes may give additional insights into the pathogenesis of Type 1 diabetes.
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Affiliation(s)
- James Alexander Pearson
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT, United States
- Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Youjia Hu
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT, United States
| | - Jian Peng
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT, United States
| | - F Susan Wong
- Diabetes Research Group, Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, United Kingdom
| | - Li Wen
- Section of Endocrinology, School of Medicine, Yale University, New Haven, CT, United States
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7
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Ashayeripanah M, Vega-Ramos J, Fernandez-Ruiz D, Valikhani S, Lun ATL, White JT, Young LJ, Yaftiyan A, Zhan Y, Wakim L, Caminschi I, Lahoud MH, Lew AM, Shortman K, Smyth GK, Heath WR, Mintern JD, Roquilly A, Villadangos JA. Systemic inflammatory response syndrome triggered by blood-borne pathogens induces prolonged dendritic cell paralysis and immunosuppression. Cell Rep 2024; 43:113754. [PMID: 38354086 DOI: 10.1016/j.celrep.2024.113754] [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: 07/04/2023] [Revised: 12/01/2023] [Accepted: 01/22/2024] [Indexed: 02/16/2024] Open
Abstract
Blood-borne pathogens can cause systemic inflammatory response syndrome (SIRS) followed by protracted, potentially lethal immunosuppression. The mechanisms responsible for impaired immunity post-SIRS remain unclear. We show that SIRS triggered by pathogen mimics or malaria infection leads to functional paralysis of conventional dendritic cells (cDCs). Paralysis affects several generations of cDCs and impairs immunity for 3-4 weeks. Paralyzed cDCs display distinct transcriptomic and phenotypic signatures and show impaired capacity to capture and present antigens in vivo. They also display altered cytokine production patterns upon stimulation. The paralysis program is not initiated in the bone marrow but during final cDC differentiation in peripheral tissues under the influence of local secondary signals that persist after resolution of SIRS. Vaccination with monoclonal antibodies that target cDC receptors or blockade of transforming growth factor β partially overcomes paralysis and immunosuppression. This work provides insights into the mechanisms of paralysis and describes strategies to restore immunocompetence post-SIRS.
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Affiliation(s)
- Mitra Ashayeripanah
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia
| | - Javier Vega-Ramos
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia; The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia
| | - Daniel Fernandez-Ruiz
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia; School of Biomedical Sciences, Faculty of Medicine & Health and the UNSW RNA Institute, The University of New South Wales, Kensington, NSW 2052, Australia
| | - Shirin Valikhani
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia
| | - Aaron T L Lun
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Jason T White
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia
| | - Louise J Young
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Atefeh Yaftiyan
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia
| | - Yifan Zhan
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Linda Wakim
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia
| | - Irina Caminschi
- Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia
| | - Mireille H Lahoud
- Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, VIC 3800, Australia
| | - Andrew M Lew
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Ken Shortman
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Medical Biology, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Gordon K Smyth
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Mathematics and Statistics, The University of Melbourne, Parkville, VIC 3010, Australia
| | - William R Heath
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia
| | - Justine D Mintern
- The Walter and Eliza Hall Institute of Medical Research, Parkville, VIC 3052, Australia; Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC 3010, Australia
| | - Antoine Roquilly
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia; Nantes Université, CHU Nantes, INSERM, Center for Research in Transplantation and Translational Immunology, UMR 1064, 44000 Nantes, France; CHU Nantes, INSERM, Nantes Université, Anesthesie Reanimation, CIC 1413, 44000 Nantes, France.
| | - Jose A Villadangos
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, VIC 3000, Australia; Department of Biochemistry and Pharmacology, Bio21 Molecular Science and Biotechnology Institute, The University of Melbourne, Parkville, VIC 3010, Australia.
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8
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Moussion C, Delamarre L. Antigen cross-presentation by dendritic cells: A critical axis in cancer immunotherapy. Semin Immunol 2024; 71:101848. [PMID: 38035643 DOI: 10.1016/j.smim.2023.101848] [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: 06/07/2023] [Revised: 10/30/2023] [Accepted: 10/30/2023] [Indexed: 12/02/2023]
Abstract
Dendritic cells (DCs) are professional antigen-presenting cells that play a key role in shaping adaptive immunity. DCs have a unique ability to sample their environment, capture and process exogenous antigens into peptides that are then loaded onto major histocompatibility complex class I molecules for presentation to CD8+ T cells. This process, called cross-presentation, is essential for initiating and regulating CD8+ T cell responses against tumors and intracellular pathogens. In this review, we will discuss the role of DCs in cancer immunity, the molecular mechanisms underlying antigen cross-presentation by DCs, the immunosuppressive factors that limit the efficiency of this process in cancer, and approaches to overcome DC dysfunction and therapeutically promote antitumoral immunity.
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Affiliation(s)
| | - Lélia Delamarre
- Cancer Immunology, Genentech, South San Francisco, CA 94080, USA.
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9
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Bawden EG, Wagner T, Schröder J, Effern M, Hinze D, Newland L, Attrill GH, Lee AR, Engel S, Freestone D, de Lima Moreira M, Gressier E, McBain N, Bachem A, Haque A, Dong R, Ferguson AL, Edwards JJ, Ferguson PM, Scolyer RA, Wilmott JS, Jewell CM, Brooks AG, Gyorki DE, Palendira U, Bedoui S, Waithman J, Hochheiser K, Hölzel M, Gebhardt T. CD4 + T cell immunity against cutaneous melanoma encompasses multifaceted MHC II-dependent responses. Sci Immunol 2024; 9:eadi9517. [PMID: 38241401 DOI: 10.1126/sciimmunol.adi9517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 12/18/2023] [Indexed: 01/21/2024]
Abstract
Whereas CD4+ T cells conventionally mediate antitumor immunity by providing help to CD8+ T cells, recent clinical studies have implied an important role for cytotoxic CD4+ T cells in cancer immunity. Using an orthotopic melanoma model, we provide a detailed account of antitumoral CD4+ T cell responses and their regulation by major histocompatibility complex class II (MHC II) in the skin. Intravital imaging revealed prominent interactions of CD4+ T cells with tumor debris-laden MHC II+ host antigen-presenting cells that accumulated around tumor cell nests, although direct recognition of MHC II+ melanoma cells alone could also promote CD4+ T cell control. CD4+ T cells stably suppressed or eradicated tumors even in the absence of other lymphocytes by using tumor necrosis factor-α and Fas ligand (FasL) but not perforin-mediated cytotoxicity. Interferon-γ was critical for protection, acting both directly on melanoma cells and via induction of nitric oxide synthase in myeloid cells. Our results illustrate multifaceted and context-specific aspects of MHC II-dependent CD4+ T cell immunity against cutaneous melanoma, emphasizing modulation of this axis as a potential avenue for immunotherapies.
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Affiliation(s)
- Emma G Bawden
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
- Institute of Experimental Oncology (IEO), Medical Faculty, University Hospital Bonn, University of Bonn, Bonn 53105, Germany
| | - Teagan Wagner
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Jan Schröder
- Computational Sciences Initiative, Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Maike Effern
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
- Institute of Experimental Oncology (IEO), Medical Faculty, University Hospital Bonn, University of Bonn, Bonn 53105, Germany
| | - Daniel Hinze
- Institute of Experimental Oncology (IEO), Medical Faculty, University Hospital Bonn, University of Bonn, Bonn 53105, Germany
| | - Lewis Newland
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
- Institute of Experimental Oncology (IEO), Medical Faculty, University Hospital Bonn, University of Bonn, Bonn 53105, Germany
| | - Grace H Attrill
- Melanoma Institute Australia, University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
| | - Ariane R Lee
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Sven Engel
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - David Freestone
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Marcela de Lima Moreira
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Elise Gressier
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Nathan McBain
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Annabell Bachem
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Ashraful Haque
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Ruining Dong
- Computational Sciences Initiative, Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
- Department of Clinical Pathology and Centre for Cancer Research, University of Melbourne, Melbourne, VIC, Australia
| | - Angela L Ferguson
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
- Centenary Institute, University of Sydney, Sydney, NSW, Australia
- Infection, Immunity and Inflammation theme, School of Medical Sciences, Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
| | - Jarem J Edwards
- Melanoma Institute Australia, University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
| | - Peter M Ferguson
- Melanoma Institute Australia, University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Department of Tissue Oncology and Diagnostic Pathology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
- NSW Health Pathology, Sydney, NSW, Australia
| | - Richard A Scolyer
- Melanoma Institute Australia, University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
- Department of Tissue Oncology and Diagnostic Pathology, Royal Prince Alfred Hospital, Sydney, NSW, Australia
- NSW Health Pathology, Sydney, NSW, Australia
| | - James S Wilmott
- Melanoma Institute Australia, University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
| | - Christopher M Jewell
- Fischell Department of Bioengineering, University of Maryland, College Park, MD, USA
- United States Department of Veterans Affairs, VA Maryland Health Care System, Baltimore, MD, USA
- Robert E. Fischell Institute for Biomedical Devices, College Park, MD, USA
- Marlene and Stewart Greenebaum Cancer Center, Baltimore, MD, USA
| | - Andrew G Brooks
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - David E Gyorki
- Division of Cancer Surgery, Peter MacCallum Cancer Centre and Sir Peter MacCallum Department of Oncology, University of Melbourne, Melbourne, VIC, Australia
- Peter MacCallum Cancer Centre Melbourne, Melbourne, VIC, Australia
| | - Umaimainthan Palendira
- Melanoma Institute Australia, University of Sydney, Sydney, NSW, Australia
- Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
- Charles Perkins Centre, University of Sydney, Sydney, NSW, Australia
| | - Sammy Bedoui
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Jason Waithman
- Telethon Kids Institute, University of Western Australia, Perth, WA, Australia
- School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
| | - Katharina Hochheiser
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
- Peter MacCallum Cancer Centre Melbourne, Melbourne, VIC, Australia
| | - Michael Hölzel
- Institute of Experimental Oncology (IEO), Medical Faculty, University Hospital Bonn, University of Bonn, Bonn 53105, Germany
| | - Thomas Gebhardt
- Department of Microbiology and Immunology, University of Melbourne at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
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10
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Padula L, Fisher E, Strbo N. "All for One and One for All": The Secreted Heat Shock Protein gp96-Ig Based Vaccines. Cells 2023; 13:72. [PMID: 38201276 PMCID: PMC10778431 DOI: 10.3390/cells13010072] [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: 11/21/2023] [Revised: 12/21/2023] [Accepted: 12/22/2023] [Indexed: 01/12/2024] Open
Abstract
It has been 50 years since Peter Charles Doherty and Rolf M Zinkernagel proposed the principle of "simultaneous dual recognition", according to which adaptive immune cells recognized "self" and "non-self" simultaneously to establish immunological efficacy. These two scientists shared the 1996 Nobel Prize in Physiology or Medicine for this discovery. Their basic immunological principle became the foundation for the development of numerous vaccine approaches against infectious diseases and tumors, including promising strategies grounded on the use of recombinant gp96-Ig developed by our lab over the last two decades. In this review, we will highlight three major principles of the gp96-Ig vaccine strategy: (1) presentation of pathogenic antigens to T cells (specificity); (2) activation of innate immune responses (adjuvanticity); (3) priming of T cells to home to the epithelial compartments (mucosal immunity). In summary, we provide a paradigm for a vaccine approach that can be rapidly engineered and customized for any future pathogens that require induction of effective tissue-resident memory responses in epithelial tissues.
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Affiliation(s)
| | | | - Natasa Strbo
- Department of Microbiology and Immunology, Miller School of Medicine, University of Miami, Miami, FL 33136, USA; (L.P.); (E.F.)
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11
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Bar-On L, Dekel H, Aftalion M, Chitlaru T, Erez N. Essential role for Batf3-dependent dendritic cells in regulating CD8 T-cell response during SARS-CoV-2 infection. PLoS One 2023; 18:e0294176. [PMID: 38150441 PMCID: PMC10752548 DOI: 10.1371/journal.pone.0294176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Accepted: 10/26/2023] [Indexed: 12/29/2023] Open
Abstract
SARS-CoV-2 infection elicits robust CD8 T-cell responses, yet the identity of the mechanisms playing dominant roles in initiating the virus-specific CD8 T-cell responses are largely unknown. In the present study, we interrogate the contribution of the cDC1 subset to SARS-CoV-2-specific CD8 T-cell immunity. For this purpose, we used a novel murine line which combines the SARS-CoV-2 susceptible K18-hACE2 transgenic and the Batf3 deficient mice which lack the cDC1 subset. We demonstrate that in the absence of cDC1, viral-specific CD8 T-cell responses were severely impaired both in the draining lymph node as well as in the lungs, during the effector phase of SARS-CoV-2 infection. Furthermore, SARS-CoV-2 specific memory CD8 T-cells in the lungs and spleens were also significantly impacted, whereas humoral responses, as well as CD4 T-cells were not affected. Additionally, we demonstrate that the absence of cDC1 subset, and the consequent impaired CD8 T-cell responses, resulted in significant increase in SARS-CoV-2 viral load in the lungs. The conclusions of the study were further independently corroborated in an additional COVID-19 murine model consisting infection with a mouse-adapted SARS-CoV-2 virus. These results underscore a specific role for Batf3-dependent DC in regulating SARS-CoV-2 specific CD8 T-cell responses and may contribute to future vaccine design and immunization strategies.
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Affiliation(s)
- Liat Bar-On
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Hani Dekel
- Veterinary Center for Preclinical Research, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Moshe Aftalion
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Theodor Chitlaru
- Department of Biochemistry and Molecular Genetics, Israel Institute for Biological Research, Ness-Ziona, Israel
| | - Noam Erez
- Department of Infectious Diseases, Israel Institute for Biological Research, Ness-Ziona, Israel
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12
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Tao F, Ye Q, Chen Y, Luo L, Xu H, Xu J, Feng Z, Wang C, Li T, Wen Y, Hu Y, Dong H, Zhao X, Wu J. Antigen-loaded flagellate bacteria for enhanced adaptive immune response by intradermal injection. J Control Release 2023; 364:562-575. [PMID: 37926245 DOI: 10.1016/j.jconrel.2023.10.055] [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: 07/16/2023] [Revised: 10/29/2023] [Accepted: 10/31/2023] [Indexed: 11/07/2023]
Abstract
Since the skin limits the distribution of intradermal vaccines, a large number of dendritic cells in the skin cannot be fully utilized to elicit a more effective immune response. Here, we loaded the antigen to the surface of the flagellate bacteria that was modified by cationic polymer, thus creating antigen-loaded flagellate bacteria (denoted as 'FB-Ag') to overcome the skin barrier and perform the active delivery of antigen in the skin. The FB-Ag showed fast speed (∼0.2 μm s-1) and strong dendritic cell activation capabilities in the skin model in vitro. In vivo, the FB-Ag promoted the spread of antigen in the skin through active movement, increased the contact between Intradermal dendritic cells and antigen, and effectively activated the internal dendritic cells in the skin. In a mouse of pulmonary metastatic melanoma and in mice bearing subcutaneous melanoma tumor, the FB-Ag effectively increased antigen-specific therapeutic efficacy and produced long-lasting immune memory. More importantly, the FB-Ag also enhanced the level of COVID-19 specific antibodies in the serum and the number of memory B cells in the spleen of mice. The movement of antigen-loaded flagellate bacteria to overcome intradermal constraints may enhance the activation of intradermal dendritic cells, providing new ideas for developing intradermal vaccines.
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Affiliation(s)
- Feng Tao
- Department of Andrology, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210093, China; State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Qingsong Ye
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Yimiao Chen
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Lifeng Luo
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Haiheng Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Jialong Xu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Zhuo Feng
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Chao Wang
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Tao Li
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Yuxuan Wen
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China
| | - Yiqiao Hu
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China; Jiangsu Provincial Key Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China
| | - Hong Dong
- State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China.
| | - Xiaozhi Zhao
- Department of Andrology, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210093, China.
| | - Jinhui Wu
- Department of Andrology, Nanjing Drum Tower Hospital, Medical School of Nanjing University, Nanjing 210093, China; State Key Laboratory of Pharmaceutical Biotechnology, Medical School of Nanjing University, Nanjing University, Nanjing 210093, China; Chemistry and Biomedicine Innovation Center, Nanjing University, Nanjing 210023, China; Jiangsu Provincial Key Laboratory for Nano Technology, Nanjing University, Nanjing 210093, China.
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13
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Velusamy T, Singh N, Croft S, Smith S, Tscharke DC. The expression and function of HSV ICP47 and its promoter in mice. J Virol 2023; 97:e0110723. [PMID: 37902400 PMCID: PMC10688380 DOI: 10.1128/jvi.01107-23] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 10/11/2023] [Indexed: 10/31/2023] Open
Abstract
IMPORTANCE Immune evasion and latency are key mechanisms that underlie the success of herpesviruses. In each case, interactions between viral and host proteins are required and due to co-evolution, not all mechanisms are preserved across host species, even if infection is possible. This is highlighted by the herpes simplex virus (HSV) protein immediate early-infected cell protein (ICP)47, which inhibits the detection of infected cells by killer T cells and acts with high efficiency in humans, but poorly, if at all in mouse cells. Here, we show that ICP47 retains modest but detectable function in mouse cells, but in an in vivo model we found no role during acute infection or latency. We also explored the activity of the ICP47 promoter, finding that it could be active during latency, but this was dependent on genome location. These results are important to interpret HSV pathogenesis work done in mice.
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Affiliation(s)
- Thilaga Velusamy
- John Curtin School of Medical Research, The Australian National University , Canberra, ACT, Australia
| | - Navneet Singh
- John Curtin School of Medical Research, The Australian National University , Canberra, ACT, Australia
| | - Sarah Croft
- John Curtin School of Medical Research, The Australian National University , Canberra, ACT, Australia
| | - Stewart Smith
- John Curtin School of Medical Research, The Australian National University , Canberra, ACT, Australia
| | - David C Tscharke
- John Curtin School of Medical Research, The Australian National University , Canberra, ACT, Australia
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14
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Reali E, Ferrari D. From the Skin to Distant Sites: T Cells in Psoriatic Disease. Int J Mol Sci 2023; 24:15707. [PMID: 37958689 PMCID: PMC10648543 DOI: 10.3390/ijms242115707] [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: 09/28/2023] [Revised: 10/23/2023] [Accepted: 10/25/2023] [Indexed: 11/15/2023] Open
Abstract
Human skin has long been known as a protective organ, acting as a mechanical barrier towards the external environment. More recent is the acquisition that in addition to this fundamental role, the complex architecture of the skin hosts a variety of immune and non-immune cells playing preeminent roles in immunological processes aimed at blocking infections, tumor progression and migration, and elimination of xenobiotics. On the other hand, dysregulated or excessive immunological response into the skin leads to autoimmune reactions culminating in a variety of skin pathological manifestations. Among them is psoriasis, a multifactorial, immune-mediated disease with a strong genetic basis. Psoriasis affects 2-3% of the population; it is associated with cardiovascular comorbidities, and in up to 30% of the cases, with psoriatic arthritis. The pathogenesis of psoriasis is due to the complex interplay between the genetic background of the patient, environmental factors, and both innate and adaptive responses. Moreover, an autoimmune component and the comprehension of the mechanisms linking chronic skin inflammation with systemic and joint manifestations in psoriatic patients is still a major challenge. The understanding of these mechanisms may offer a valuable chance to find targetable molecules to treat the disease and prevent its progression to severe systemic conditions.
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Affiliation(s)
- Eva Reali
- Department of Translational Medicine, University of Ferrara, 44100 Ferrara, Italy
| | - Davide Ferrari
- Department of Life Science and Biotechnology, University of Ferrara, 44100 Ferrara, Italy
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15
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Fonceca AM, Lauzon-Joset J, Scott N, Stumbles PA, Strickland D, Everard ML. In Vivo Evidence of Respiratory Syncytial Virus Persistence in a Subset of Pulmonary Dendritic Cells Following a Primary Infection. Viral Immunol 2023; 36:466-474. [PMID: 37523237 DOI: 10.1089/vim.2023.0007] [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] [Indexed: 08/02/2023] Open
Abstract
Respiratory syncytial virus (RSV) causes annual epidemics of infections affecting the whole population. In vitro, it has been shown to infect and persist in human dendritic cells (DCs) for prolonged periods. Initially persistence is associated with low levels of replication before the virus becomes dormant. Reactivation of viral replication can be triggered many months later. Infection of DCs is likely to influence the host's ability to generate effective long-term memory responses. A well-established animal was utilized to confirm that RSV both infects and persists in pulmonary DCs in vivo. Mice were infected with a modified strain of RSV expressing red fluorescent protein (RSV-RFP) when replicating. Clinical symptoms of infection were monitored using weight change and inflammatory cell counts from bronchoalveolar lavage, which correlated with the RSV viral titer (quantitative polymerase chain reaction). Lung tissues were collected at 3, 5, 7, and 21 days postinfection (dpi) to assess leukocyte populations by flow cytometry. Clinical symptoms and RSV viral load peaked at 5 dpi. RSV-RFP was most prevalent in macrophages at 3 dpi and also observed in B cells and DCs. At 21 dpi, RSV-RFP remained evident in a subset of conventional DCs (CD103+CD11b+) even though both clinical symptoms and pulmonary inflammation had resolved. These results confirm that in this well-established mouse model, RSV persists in lung conventional DCs following resolution of the acute infection. Further work is required to explore whether the virus continues with low-level replication before becoming dormant in vivo, as has been described in vitro.
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Affiliation(s)
- Angela M Fonceca
- School of Biomedical Sciences, University of Western Australia, Nedlands, Australia
| | | | - Naomi Scott
- Telethon Kids Institute, Nedlands, Australia
| | - Philip A Stumbles
- School of Biomedical Sciences, University of Western Australia, Nedlands, Australia
- Telethon Kids Institute, Nedlands, Australia
- School of Veterinary and Life Sciences, Murdoch University, Murdoch, Australia
| | | | - Mark L Everard
- Division of Paediatrics, School of Medicine, University of Western Australia, Nedlands, Australia
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16
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Randall KL, Flesch IEA, Mei Y, Miosge LA, Aye R, Yu Z, Domaschenz H, Hollett NA, Russell TA, Stefanovic T, Wong YC, Goodnow CC, Bertram EM, Enders A, Tscharke DC. DOCK2-deficiency causes defects in anti-viral T cell responses and poor control of herpes simplex virus infection. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.08.02.551154. [PMID: 37577614 PMCID: PMC10418165 DOI: 10.1101/2023.08.02.551154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
The expanding number of rare immunodeficiency syndromes offers an opportunity to understand key genes that support immune defence against infectious diseases. However, patients with these diseases are by definition rare. In addition, any analysis is complicated by treatments and co-morbid infections requiring the use of mouse models for detailed investigations. Here we develop a mouse model of DOCK2 immunodeficiency and demonstrate that these mice have delayed clearance of herpes simplex virus type 1 (HSV-1) infections. Further, we found that they have a critical, cell intrinsic role of DOCK2 in the clonal expansion of anti-viral CD8+ T cells despite normal early activation of these cells. Finally, while the major deficiency is in clonal expansion, the ability of primed and expanded DOCK2-deficient CD8+ T cells to protect against HSV-1-infection is also compromised. These results provide a contributing cause for the frequent and devastating viral infections seen in DOCK2-deficient patients and improve our understanding of anti-viral CD8+ T cell immunity.
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Affiliation(s)
- Katrina L Randall
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
- School of Medicine and Psychology, Australian National University, Canberra ACT 2600
| | - Inge E A Flesch
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Yan Mei
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Lisa A Miosge
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Racheal Aye
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Zhijia Yu
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Heather Domaschenz
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Natasha A Hollett
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Tiffany A Russell
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Tijana Stefanovic
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Yik Chun Wong
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Christopher C Goodnow
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
- Garvan Institute of Medical Research, University of New South Wales, Darlinghurst, NSW 2010, Australia
| | - Edward M Bertram
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - Anselm Enders
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
| | - David C Tscharke
- Division of Immunology and Infectious Diseases, John Curtin School of Medical Research, Australian National University, Canberra, ACT 2601
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17
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Pirillo C, Al Khalidi S, Sims A, Devlin R, Zhao H, Pinto R, Jasim S, Shearer PA, Shergold AL, Donnelly H, Bravo-Blas A, Loney C, Perona-Wright G, Hutchinson E, Roberts EW. Cotransfer of antigen and contextual information harmonizes peripheral and lymph node conventional dendritic cell activation. Sci Immunol 2023; 8:eadg8249. [PMID: 37478193 PMCID: PMC7616026 DOI: 10.1126/sciimmunol.adg8249] [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: 01/24/2023] [Accepted: 06/29/2023] [Indexed: 07/23/2023]
Abstract
T cell responses against infections and cancer are directed by conventional dendritic cells (cDCs) in lymph nodes distant from the site of challenge. Migratory cDCs, which travel from the tissue to the lymph node, not only drive initial T cell activation but also transfer antigen to lymph node-resident cDCs. These resident cells have essential roles defining the character of the resulting T cell response; however, it is unknown how they can appropriately process and present antigens to suitably direct responses given their spatial separation. Here, using a novel strain of influenza A and a modified melanoma model, we show that tissue and lymph node cDC activation is harmonized and that this is driven by cotransfer of contextual cues. In the tumor, incomplete cDC activation in the tumor microenvironment is mirrored by lymph node-resident cDCs, whereas during influenza infection, pathogen-associated molecular patterns cotransferred with antigen drive TLR signaling in resident cDCs and their subsequent robust activation. This cotransfer mechanism explains how individual antigens can be handled distinctly by resident cDCs and how signals driving poor tumoral cDC activation further impact the lymph node. Our findings clarify how tissue context dictates antigenic and, consequently, T cell fate in the lymph node.
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Affiliation(s)
- C Pirillo
- CRUK Beatson Institute, Glasgow, Great Britain
| | | | - A Sims
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Great Britain
| | - R Devlin
- CRUK Beatson Institute, Glasgow, Great Britain
| | - H Zhao
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Great Britain
- Jinan Center for Disease Control and Prevention, Jinan, Shandong 250021, China
| | - R Pinto
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Great Britain
| | - S Jasim
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Great Britain
| | - PA Shearer
- School of Infection and Immunity, University of Glasgow, Glasgow, Great Britain
| | - AL Shergold
- CRUK Beatson Institute, Glasgow, Great Britain
| | - H Donnelly
- School of Cancer Sciences, University of Glasgow, Glasgow, Great Britain
| | | | - C Loney
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Great Britain
| | - G Perona-Wright
- School of Infection and Immunity, University of Glasgow, Glasgow, Great Britain
| | - E Hutchinson
- MRC-University of Glasgow Centre for Virus Research, Glasgow, Great Britain
- School of Infection and Immunity, University of Glasgow, Glasgow, Great Britain
| | - EW Roberts
- CRUK Beatson Institute, Glasgow, Great Britain
- School of Cancer Sciences, University of Glasgow, Glasgow, Great Britain
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18
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Mani N, Andrews D, Obeng RC. Modulation of T cell function and survival by the tumor microenvironment. Front Cell Dev Biol 2023; 11:1191774. [PMID: 37274739 PMCID: PMC10232912 DOI: 10.3389/fcell.2023.1191774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/02/2023] [Indexed: 06/06/2023] Open
Abstract
Cancer immunotherapy is shifting paradigms in cancer care. T cells are an indispensable component of an effective antitumor immunity and durable clinical responses. However, the complexity of the tumor microenvironment (TME), which consists of a wide range of cells that exert positive and negative effects on T cell function and survival, makes achieving robust and durable T cell responses difficult. Additionally, tumor biology, structural and architectural features, intratumoral nutrients and soluble factors, and metabolism impact the quality of the T cell response. We discuss the factors and interactions that modulate T cell function and survive in the TME that affect the overall quality of the antitumor immune response.
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Affiliation(s)
- Nikita Mani
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Dathan Andrews
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, United States
| | - Rebecca C. Obeng
- Department of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- Case Comprehensive Cancer Center, Case Western Reserve University School of Medicine, Cleveland, OH, United States
- University Hospitals Cleveland Medical Center, Cleveland, OH, United States
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19
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Jirmo AC, Grychtol R, Gaedcke S, Liu B, DeStefano S, Happle C, Halle O, Monteiro JT, Habener A, Breiholz OD, DeLuca D, Hansen G. Single cell RNA sequencing reveals distinct clusters of Irf8-expressing pulmonary conventional dendritic cells. Front Immunol 2023; 14:1127485. [PMID: 37251386 PMCID: PMC10213693 DOI: 10.3389/fimmu.2023.1127485] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Accepted: 04/25/2023] [Indexed: 05/31/2023] Open
Abstract
A single population of interferon-regulatory factor 8 (Irf8)-dependent conventional dendritic cell (cDC type1) is considered to be responsible for both immunogenic and tolerogenic responses depending on the surrounding cytokine milieu. Here, we challenge this concept of an omnipotent single Irf8-dependent cDC1 cluster through analysis of pulmonary cDCs at single cell resolution. We report existence of a pulmonary cDC1 cluster lacking Xcr1 with an immunogenic signature that clearly differs from the Xcr1 positive cDC1 cluster. The Irf8+Batf3+Xcr1- cluster expresses high levels of pro-inflammatory genes associated with antigen presentation, migration and co-stimulation such as Ccr7, Cd74, MHC-II, Ccl5, Il12b and Relb while, the Xcr1+ cDC1 cluster expresses genes corresponding to immune tolerance mechanisms like Clec9a, Pbx1, Cadm1, Btla and Clec12a. In concordance with their pro-inflammatory gene expression profile, the ratio of Xcr1- cDC1s but not Xcr1+cDC1 is increased in the lungs of allergen-treated mice compared to the control group, in which both cDC1 clusters are present in comparable ratios. The existence of two distinct Xcr1+ and Xcr1- cDC1 clusters is furthermore supported by velocity analysis showing markedly different temporal patterns of Xcr1- and Xcr1+cDC1s. In summary, we present evidence for the existence of two different cDC1 clusters with distinct immunogenic profiles in vivo. Our findings have important implications for DC-targeting immunomodulatory therapies.
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Affiliation(s)
- Adan Chari Jirmo
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Ruth Grychtol
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Svenja Gaedcke
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Bin Liu
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Stephanie DeStefano
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
| | - Christine Happle
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Olga Halle
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Joao T. Monteiro
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Excellence Cluster Resolving Infection Susceptibility RESIST (EXC 2155), Deutsche Forschungsgemeinschaft, Hannover Medical School, Hannover, Germany
| | - Anika Habener
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Oliver D. Breiholz
- Research Core Unit Genomics (RCUG), Hannover Medical School, Hannover, Germany
| | - David DeLuca
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
| | - Gesine Hansen
- Department of Pediatric Pneumology, Allergology and Neonatology, Hannover Medical School, Hannover, Germany
- Biomedical Research in Endstage and Obstructive Lung Disease Biomedical Research in Endstage and Obstructive Lung Disease (BREATH), Member of the German Center for Lung Research (DZL), Hannover, Germany
- Excellence Cluster Resolving Infection Susceptibility RESIST (EXC 2155), Deutsche Forschungsgemeinschaft, Hannover Medical School, Hannover, Germany
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20
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Weizman OE, Luyten S, Krykbaeva I, Song E, Mao T, Bosenberg M, Iwasaki A. Type 2 Dendritic Cells Orchestrate a Local Immune Circuit to Confer Antimetastatic Immunity. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 210:1146-1155. [PMID: 36881866 PMCID: PMC10067787 DOI: 10.4049/jimmunol.2200697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 02/11/2023] [Indexed: 03/09/2023]
Abstract
The progression of transformed primary tumors to metastatic colonization is a lethal determinant of disease outcome. Although circulating adaptive and innate lymphocyte effector responses are required for effective antimetastatic immunity, whether tissue-resident immune circuits confer initial immunity at sites of metastatic dissemination remains ill defined. Here we examine the nature of local immune cell responses during early metastatic seeding in the lung using intracardiac injection to mimic monodispersed metastatic spread. Using syngeneic murine melanoma and colon cancer models, we demonstrate that lung-resident conventional type 2 dendritic cells (DC2) orchestrate a local immune circuit to confer host antimetastatic immunity. Tissue-specific ablation of lung DC2, and not peripheral DC populations, led to increased metastatic burden in the presence of an intact T cell and NK cell compartment. We demonstrate that DC nucleic acid sensing and transcription factors IRF3 and IRF7 signaling are required for early metastatic control and that DC2 serve as a robust source of proinflammatory cytokines in the lung. Critically, DC2 direct the local production of IFN-γ by lung-resident NK cells, which limits the initial metastatic burden. Collectively, our results highlight, to our knowledge, a novel DC2-NK cell axis that colocalizes around pioneering metastatic cells to orchestrate an early innate immune response program to limit initial metastatic burden in the lung.
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Affiliation(s)
- Orr-El Weizman
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT
| | - Sophia Luyten
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT
| | - Irina Krykbaeva
- Department of Dermatology, Yale University School of Medicine, New Haven, CT
- Department of Pathology, Yale University School of Medicine, New Haven, CT
| | - Eric Song
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT
| | - Tianyang Mao
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT
| | - Marcus Bosenberg
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT
- Department of Dermatology, Yale University School of Medicine, New Haven, CT
- Department of Pathology, Yale University School of Medicine, New Haven, CT
| | - Akiko Iwasaki
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT
- Department of Dermatology, Yale University School of Medicine, New Haven, CT
- Howard Hughes Medical Institute, Chevy Chase, MD
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21
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Rogers NM, Zammit N, Nguyen-Ngo D, Souilmi Y, Minhas N, Meijles DN, Self E, Walters SN, Warren J, Cultrone D, El-Rashid M, Li J, Chtanova T, O'Connell PJ, Grey ST. The impact of the cytoplasmic ubiquitin ligase TNFAIP3 gene variation on transcription factor NF-κB activation in acute kidney injury. Kidney Int 2023; 103:1105-1119. [PMID: 37097268 DOI: 10.1016/j.kint.2023.02.030] [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: 08/23/2021] [Revised: 02/08/2023] [Accepted: 02/23/2023] [Indexed: 04/26/2023]
Abstract
Nuclear factor κB (NF-κB) activation is a deleterious molecular mechanism that drives acute kidney injury (AKI) and manifests in transplanted kidneys as delayed graft function. The TNFAIP3 gene encodes A20, a cytoplasmic ubiquitin ligase and a master negative regulator of the NF- κB signaling pathway. Common population-specific TNFAIP3 coding variants that reduce A20's enzyme function and increase NF- κB activation have been linked to heightened protective immunity and autoimmune disease, but have not been investigated in AKI. Here, we functionally identified a series of unique human TNFAIP3 coding variants linked to the autoimmune genome-wide association studies single nucleotide polymorphisms of F127C; namely F127C;R22Q, F127C;G281E, F127C;W448C and F127C;N449K that reduce A20's anti-inflammatory function in an NF- κB reporter assay. To investigate the impact of TNFAIP3 hypomorphic coding variants in AKI we tested a mouse Tnfaip3 hypomorph in a model of ischemia reperfusion injury (IRI). The mouse Tnfaip3 coding variant I325N increases NF- κB activation without overt inflammatory disease, providing an immune boost as I325N mice exhibit enhanced innate immunity to a bacterial challenge. Surprisingly, despite exhibiting increased intra-kidney NF- κB activation with inflammation in IRI, the kidney of I325N mice was protected. The I325N variant influenced the outcome of IRI by changing the dynamic expression of multiple cytoprotective mechanisms, particularly by increasing NF- κB-dependent anti-apoptotic factors BCL-2, BCL-XL, c-FLIP and A20, altering the active redox state of the kidney with a reduction of superoxide levels and the enzyme super oxide dismutase-1, and enhancing cellular protective mechanisms including increased Foxp3+ T cells. Thus, TNFAIP3 gene variants represent a kidney and population-specific molecular factor that can dictate the course of IRI.
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Affiliation(s)
- Natasha M Rogers
- Centre for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia; Renal and Transplant Medicine Unit, Westmead Hospital, Westmead, New South Wales, Australia; Westmead Clinical School, University of Sydney, New South Wales, Australia
| | - Nathan Zammit
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; Translational Research Pillar, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Danny Nguyen-Ngo
- Centre for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Yassine Souilmi
- Australian Centre for Ancient DNA, School of Biological Sciences, University of Adelaide, South Australia, Australia; Environment Institute, Faculty of Sciences, University of Adelaide, South Australia, Australia
| | - Nikita Minhas
- Centre for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Daniel N Meijles
- Molecular and Clinical Sciences Research Institute, St George's University of London, London, UK
| | - Eleanor Self
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; Translational Research Pillar, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Stacey N Walters
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; Translational Research Pillar, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Joanna Warren
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; Translational Research Pillar, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Daniele Cultrone
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; Translational Research Pillar, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia
| | - Maryam El-Rashid
- Centre for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Jennifer Li
- Centre for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia
| | - Tatyana Chtanova
- Translational Research Pillar, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; Innate and Tumour Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, New South Wales, Australia
| | - Philip J O'Connell
- Centre for Transplant and Renal Research, Westmead Institute for Medical Research, Westmead, New South Wales, Australia; Renal and Transplant Medicine Unit, Westmead Hospital, Westmead, New South Wales, Australia; Westmead Clinical School, University of Sydney, New South Wales, Australia
| | - Shane T Grey
- Transplantation Immunology Laboratory, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; Translational Research Pillar, Garvan Institute of Medical Research, Darlinghurst, New South Wales, Australia; School of Biotechnology and Biomolecular Sciences, Faculty of Science, University of New South Wales, Sydney, New South Wales, Australia.
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22
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Blander JM. Different routes of MHC-I delivery to phagosomes and their consequences to CD8 T cell immunity. Semin Immunol 2023; 66:101713. [PMID: 36706521 PMCID: PMC10023361 DOI: 10.1016/j.smim.2023.101713] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 01/08/2023] [Accepted: 01/09/2023] [Indexed: 01/27/2023]
Abstract
Dendritic cells (DCs) present internalized antigens to CD8 T cells through cross-presentation by major histocompatibility complex class I (MHC-I) molecules. While conventional cDC1 excel at cross-presentation, cDC2 can be licensed to cross-present during infection by signals from inflammatory receptors, most prominently Toll-like receptors (TLRs). At the core of the regulation of cross-presentation by TLRs is the control of subcellular MHC-I traffic. Within DCs, MHC-I are enriched within endosomal recycling compartments (ERC) and traffic to microbe-carrying phagosomes under the control of phagosome-compartmentalized TLR signals to favor CD8 T cell cross-priming to microbial antigens. Viral blockade of the transporter associated with antigen processing (TAP), known to inhibit the classic MHC-I presentation of cytoplasmic protein-derived peptides, depletes the ERC stores of MHC-I to simultaneously also block TLR-regulated cross-presentation. DCs counter this impairment in the two major pathways of MHC-I presentation to CD8 T cells by mobilizing noncanonical cross-presentation, which delivers MHC-I to phagosomes from a new location in the ER-Golgi intermediate compartment (ERGIC) where MHC-I abnormally accumulate upon TAP blockade. Noncanonical cross-presentation thus rescues MHC-I presentation and cross-primes TAP-independent CD8 T cells best-matched against target cells infected with immune evasive viruses. Because noncanonical cross-presentation relies on a phagosome delivery route of MHC-I that is not under TLR control, it risks potential cross-presentation of self-antigens during infection. Here I review these findings to illustrate how the subcellular route of MHC-I to phagosomes critically impacts the regulation of cross-presentation and the nature of the CD8 T cell response to infection and cancer. I highlight important and novel implications to CD8 T cell vaccines and immunotherapy.
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Affiliation(s)
- J Magarian Blander
- The Jill Roberts Institute for Research in Inflammatory Bowel Disease, USA; Joan and Sanford I. Weill Department of Medicine, USA; Department of Microbiology and Immunology, USA; Sandra and Edward Meyer Cancer Center, USA; Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, Weill Cornell Medicine, Cornell University, New York, NY, USA.
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23
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Biscari L, Maza MC, Farré C, Kaufman CD, Amigorena S, Fresno M, Gironès N, Alloatti A. Sec22b-dependent antigen cross-presentation is a significant contributor of T cell priming during infection with the parasite Trypanosoma cruzi. Front Cell Dev Biol 2023; 11:1138571. [PMID: 36936692 PMCID: PMC10014565 DOI: 10.3389/fcell.2023.1138571] [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: 01/05/2023] [Accepted: 02/17/2023] [Indexed: 03/05/2023] Open
Abstract
Antigen cross-presentation is a vital mechanism of dendritic cells and other antigen presenting cells to orchestrate the priming of cytotoxic responses towards killing of infected or cancer cells. In this process, exogenous antigens are internalized by dendritic cells, processed, loaded onto MHC class I molecules and presented to CD8+ T cells to activate them. Sec22b is an ER-Golgi Intermediate Compartment resident SNARE protein that, in partnership with sintaxin4, coordinates the recruitment of the transporter associated with antigen processing protein and the peptide loading complex to phagosomes, where antigenic peptides that have been proteolyzed in the cytosol are loaded in MHC class I molecules and transported to the cell membrane. The silencing of Sec22b in dendritic cells primary cultures and conditionally in dendritic cells of C57BL/6 mice, critically impairs antigen cross-presentation, but neither affects other antigen presentation routes nor cytokine production and secretion. Mice with Sec22b conditionally silenced in dendritic cells (Sec22b-/-) show deficient priming of CD8+ T lymphocytes, fail to control tumor growth, and are resistant to anti-checkpoint immunotherapy. In this work, we show that Sec22b-/- mice elicit a deficient specific CD8+ T cell response when challenged with sublethal doses of Trypanosoma cruzi trypomastigotes that is associated with increased blood parasitemia and diminished survival.
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Affiliation(s)
- Lucía Biscari
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER), CONICET, Universidad Nacional de Rosario, Rosario, Argentina
| | - Ma Carmen Maza
- Departamento de Biología Molecular, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
| | - Cecilia Farré
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER), CONICET, Universidad Nacional de Rosario, Rosario, Argentina
- Centro de Investigación y Producción de Reactivos Biológicos, Facultad de Ciencias Médicas, Universidad Nacional de Rosario, Rosario, Argentina
| | - Cintia Daniela Kaufman
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER), CONICET, Universidad Nacional de Rosario, Rosario, Argentina
| | - Sebastian Amigorena
- Institut Curie, INSERM U932, Immunity and Cancer, PSL University, Paris, France
| | - Manuel Fresno
- Departamento de Biología Molecular, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Universitario de la Princesa, Madrid, Spain
| | - Núria Gironès
- Departamento de Biología Molecular, Universidad Autónoma de Madrid (UAM), Madrid, Spain
- Centro de Biología Molecular Severo Ochoa (CSIC-UAM), Madrid, Spain
- Instituto de Investigación Sanitaria del Hospital Universitario de la Princesa, Madrid, Spain
| | - Andrés Alloatti
- Instituto de Inmunología Clínica y Experimental de Rosario (IDICER), CONICET, Universidad Nacional de Rosario, Rosario, Argentina
- *Correspondence: Andrés Alloatti,
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24
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Barrachina F, Ottino K, Tu LJ, Soberman RJ, Brown D, Breton S, Battistone MA. CX3CR1 deficiency leads to impairment of immune surveillance in the epididymis. Cell Mol Life Sci 2022; 80:15. [PMID: 36550225 PMCID: PMC9948740 DOI: 10.1007/s00018-022-04664-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 11/09/2022] [Accepted: 12/09/2022] [Indexed: 12/24/2022]
Abstract
Mononuclear phagocytes (MPs) play an active role in the immunological homeostasis of the urogenital tract. In the epididymis, a finely tuned balance between tolerance to antigenic sperm and immune activation is required to maintain epididymal function while protecting sperm against pathogens and stressors. We previously characterized a subset of resident MPs that express the CX3CR1 receptor, emphasizing their role in antigen sampling and processing during sperm maturation and storage in the murine epididymis. Bacteria-associated epididymitis is the most common cause of intrascrotal inflammation and frequently leads to reproductive complications. Here, we examined whether the lack of functional CX3CR1 in homozygous mice (CX3CR1EGFP/EGFP, KO) alters the ability of MPs to initiate immune responses during epididymitis induced by LPS intravasal-epididymal injection. Confocal microscopy revealed that CX3CR1-deficient MPs located in the initial segments of the epididymis displayed fewer luminal-reaching membrane projections and impaired antigen capture activity. Moreover, flow cytometry showed a reduction of epididymal KO MPs with a monocytic phenotype under physiological conditions. In contrast, flow cytometry revealed an increase in the abundance of MPs with a monocytic signature in the distal epididymal segments after an LPS challenge. This was accompanied by the accumulation of CD103+ cells in the interstitium, and the prevention or attenuation of epithelial damage in the KO epididymis during epididymitis. Additionally, CX3CR1 deletion induced downregulation of Gja1 (connexin 43) expression in KO MPs. Together, our study provides evidence that MPs are gatekeepers of the immunological blood-epididymis barrier and reveal the role of the CX3CR1 receptor in epididymal mucosal homeostasis by inducing MP luminal protrusions and by regulating the monocyte population in the epididymis at steady state as well as upon infection. We also uncover the interaction between MPs and CD103+ dendritic cells, presumably through connexin 43, that enhance immune responses during epididymitis. Our study may lead to new diagnostics and therapies for male infertility and epididymitis by identifying immune mechanisms in the epididymis.
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Affiliation(s)
- F Barrachina
- Program in Membrane Biology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - K Ottino
- Program in Membrane Biology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - L J Tu
- Program in Membrane Biology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - R J Soberman
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - D Brown
- Program in Membrane Biology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA
| | - S Breton
- Centre Hospitalier Universitaire de Québec-Research Center, Department of Obstetrics, Gynecology, and Reproduction, Faculty of Medicine, Université Laval, Québec, QC, Canada
| | - M A Battistone
- Program in Membrane Biology, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
- Nephrology Division, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, USA.
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25
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Smith JB, Herbert JJ, Truong NR, Cunningham AL. Cytokines and chemokines: The vital role they play in herpes simplex virus mucosal immunology. Front Immunol 2022; 13:936235. [PMID: 36211447 PMCID: PMC9538770 DOI: 10.3389/fimmu.2022.936235] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Accepted: 09/08/2022] [Indexed: 11/17/2022] Open
Abstract
Herpes simplex viruses (HSV) types 1 and 2 are ubiquitous infections in humans. They cause orofacial and genital herpes with occasional severe complications. HSV2 also predisposes individuals to infection with HIV. There is currently no vaccine or immunotherapy for these diseases. Understanding the immunopathogenesis of HSV infections is essential to progress towards these goals. Both HSV viruses result in initial infections in two major sites - in the skin or mucosa, either after initial infection or recurrence, and in the dorsal root or trigeminal ganglia where the viruses establish latency. HSV1 can also cause recurrent infection in the eye. At all of these sites immune cells respond to control infection. T cells and resident dendritic cells (DCs) in the skin/mucosa and around reactivating neurones in the ganglia, as well as keratinocytes in the skin and mucosa, are major sources of cytokines and chemokines. Cytokines such as the Type I and II interferons synergise in their local antiviral effects. Chemokines such as CCL2, 3 and 4 are found in lesion vesicle fluid, but their exact role in determining the interactions between epidermal and dermal DCs and with resident memory and infiltrating CD4 and CD8 T cells in the skin/mucosa is unclear. Even less is known about these mechanisms in the ganglia. Here we review the data on known sources and actions of these cytokines and chemokines at cellular and tissue level and indicate their potential for preventative and therapeutic interventions.
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Affiliation(s)
- Jacinta B. Smith
- Centre for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Jason J. Herbert
- Centre for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Naomi R. Truong
- Centre for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Anthony L. Cunningham
- Centre for Virus Research, The Westmead Institute for Medical Research, Sydney, NSW, Australia
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
- *Correspondence: Anthony L. Cunningham,
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26
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Xuan S, Li Y, Wu Y, Adcock IM, Zeng X, Yao X. Langerin-expressing dendritic cells in pulmonary immune-related diseases. Front Med (Lausanne) 2022; 9:909057. [PMID: 36160158 PMCID: PMC9490018 DOI: 10.3389/fmed.2022.909057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 08/12/2022] [Indexed: 11/30/2022] Open
Abstract
Dendritic cells (DCs) are “frontline” immune cells dedicated to antigen presentation. They serve as an important bridge connecting innate and adaptive immunity, and express various receptors for antigen capture. DCs are divided into various subclasses according to their differential expression of cell surface receptors and different subclasses of DCs exhibit specific immunological characteristics. Exploring the common features of each sub-category has became the focus of many studies. There are certain amounts of DCs expressing langerin in airways and peripheral lungs while the precise mechanism by which langerin+ DCs drive pulmonary disease is unclear. Langerin-expressing DCs can be further subdivided into numerous subtypes based on the co-expressed receptors, but here, we identify commonalities across these subtypes that point to the major role of langerin. Better understanding is required to clarify key disease pathways and determine potential new therapeutic approaches.
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Affiliation(s)
- Shurui Xuan
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yuebei Li
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yunhui Wu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ian M. Adcock
- Airway Disease Section, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London, United Kingdom
| | - Xiaoning Zeng
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Xin Yao
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- *Correspondence: Xin Yao
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27
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Oral Papillomatosis: Its Relation with Human Papilloma Virus Infection and Local Immunity—An Update. Medicina (B Aires) 2022; 58:medicina58081103. [PMID: 36013570 PMCID: PMC9415166 DOI: 10.3390/medicina58081103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Revised: 08/10/2022] [Accepted: 08/11/2022] [Indexed: 11/16/2022] Open
Abstract
Oral papilloma lesions may appear as a result of HPV infection, or not, and only special molecular methods could differentiate them. Low-risk and high-risk HPV types could induce oral HPV papillomatosis with different natural evolution, clearance and persistence mechanisms. The pathogenic mechanisms are based on the crosstalk between the oral epithelial and immune cells and this very efficient virus. HPV acts as a direct inducer in the process of transforming a benign lesion into a malignant one, the cancerization process being also debated in this paper. According to the degree of malignity, three types of papillomatous lesions can be described in the oral cavity: benign lesions, potential malign disorders and malignant lesions. The precise molecular diagnostic is important to identify the presence of various virus types and also the virus products responsible for its oncogenicity. An accurate diagnostic of oral papilloma can be established through a good knowledge of etiological and epidemiological factors, clinical examination and laboratory tests. This review intends to update the pathogenic mechanisms driving the macroscopic and histological features of oral papillomatosis having HPV infection as the main etiological factor, focusing on its interreference in the local immunity. In the absence of an accurate molecular diagnostic and knowledge of local immunological conditions, the therapeutic strategy could be difficult to decide.
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28
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Lança T, Ungerbäck J, Da Silva C, Joeris T, Ahmadi F, Vandamme J, Svensson-Frej M, Mowat AM, Kotarsky K, Sigvardsson M, Agace WW. IRF8 deficiency induces the transcriptional, functional, and epigenetic reprogramming of cDC1 into the cDC2 lineage. Immunity 2022; 55:1431-1447.e11. [PMID: 35830859 DOI: 10.1016/j.immuni.2022.06.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 05/05/2022] [Accepted: 06/07/2022] [Indexed: 12/13/2022]
Abstract
Conventional dendritic cells (cDCs) consist of two major functionally and phenotypically distinct subsets, cDC1 and cDC2, whose development is dependent on distinct sets of transcription factors. Interferon regulatory factor 8 (IRF8) is required at multiple stages of cDC1 development, but its role in committed cDC1 remains unclear. Here, we used Xcre-cre to delete Irf8 in committed cDC1 and demonstrate that Irf8 is required for maintaining the identity of cDC1. In the absence of Irf8, committed cDC1 acquired the transcriptional, functional, and chromatin accessibility properties of cDC2. This conversion was independent of Irf4 and was associated with the decreased accessibility of putative IRF8, Batf3, and composite AP-1-IRF (AICE)-binding elements, together with increased accessibility of cDC2-associated transcription-factor-binding elements. Thus, IRF8 expression by committed cDC1 is required for preventing their conversion into cDC2-like cells.
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Affiliation(s)
- Telma Lança
- Mucosal Immunology group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark
| | - Jonas Ungerbäck
- Division of Molecular Hematology, Lund University, 22184 Lund, Sweden
| | - Clément Da Silva
- Immunology Section, Department of Experimental Medicine, Lund University, BMC D14, 221-84 Lund, Sweden
| | - Thorsten Joeris
- Immunology Section, Department of Experimental Medicine, Lund University, BMC D14, 221-84 Lund, Sweden
| | - Fatemeh Ahmadi
- Immunology Section, Department of Experimental Medicine, Lund University, BMC D14, 221-84 Lund, Sweden
| | - Julien Vandamme
- Mucosal Immunology group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark
| | - Marcus Svensson-Frej
- Mucosal Immunology group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark
| | - Allan McI Mowat
- Centre for Immunobiology, Institute of Infection, Immunity and Inflammation, College of Medicine, Veterinary Medicine and Life Sciences, University of Glasgow, Glasgow, UK
| | - Knut Kotarsky
- Immunology Section, Department of Experimental Medicine, Lund University, BMC D14, 221-84 Lund, Sweden
| | - Mikael Sigvardsson
- Division of Molecular Hematology, Lund University, 22184 Lund, Sweden; Department of Physics, Chemistry and Biology, Linköping University, 581 83 Linköping, Sweden
| | - William W Agace
- Mucosal Immunology group, Department of Health Technology, Technical University of Denmark, Kemitorvet, 2800 Kgs. Lyngby, Denmark; Immunology Section, Department of Experimental Medicine, Lund University, BMC D14, 221-84 Lund, Sweden.
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29
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Wilson KR, Gressier E, McConville MJ, Bedoui S. Microbial Metabolites in the Maturation and Activation of Dendritic Cells and Their Relevance for Respiratory Immunity. Front Immunol 2022; 13:897462. [PMID: 35880171 PMCID: PMC9307905 DOI: 10.3389/fimmu.2022.897462] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Accepted: 06/10/2022] [Indexed: 12/12/2022] Open
Abstract
The respiratory tract is a gateway for viruses and bacteria from the external environment to invade the human body. Critical to the protection against these invaders are dendritic cells (DCs) - a group of highly specialized myeloid cells that monitors the lung microenvironment and relays contextual and antigenic information to T cells. Following the recognition of danger signals and/or pathogen molecular associated patterns in the lungs, DCs undergo activation. This process arms DCs with the unique ability to induce the proliferation and differentiation of T cells responding to matching antigen in complex with MHC molecules. Depending on how DCs interact with T cells, the ensuing T cell response can be tolerogenic or immunogenic and as such, the susceptibility and severity of respiratory infections is influenced by the signals DCs receive, integrate, and then convey to T cells. It is becoming increasingly clear that these facets of DC biology are heavily influenced by the cellular components and metabolites produced by the lung and gut microbiota. In this review, we discuss the roles of different DC subsets in respiratory infections and outline how microbial metabolites impact the development, propensity for activation and subsequent activation of DCs. In particular, we highlight these concepts in the context of respiratory immunity.
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Affiliation(s)
- Kayla R. Wilson
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, VIC, Australia
- *Correspondence: Kayla R. Wilson,
| | - Elise Gressier
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, VIC, Australia
| | - Malcolm J. McConville
- Department of Biochemistry and Pharmacology, Bio21 Institute of Molecular Science and Biotechnology, University of Melbourne, Melbourne, VIC, Australia
| | - Sammy Bedoui
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, University of Melbourne, Parkville, VIC, Australia
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30
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Shiri Aghbash P, Shirvaliloo M, Khalo Abass Kasho A, Alinezhad F, Nauwynck H, Bannazadeh Baghi H. Cluster of differentiation frequency on antigen presenting-cells: The next step to cervical cancer prognosis? Int Immunopharmacol 2022; 108:108896. [DOI: 10.1016/j.intimp.2022.108896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 05/16/2022] [Accepted: 05/23/2022] [Indexed: 11/29/2022]
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Lipid A analog CRX-527 conjugated to synthetic peptides enhances vaccination efficacy and tumor control. NPJ Vaccines 2022; 7:64. [PMID: 35739113 PMCID: PMC9226002 DOI: 10.1038/s41541-022-00484-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 05/13/2022] [Indexed: 11/09/2022] Open
Abstract
Adjuvants play a determinant role in cancer vaccination by optimally activating APCs and shaping the T cell response. Bacterial-derived lipid A is one of the most potent immune-stimulators known, and is recognized via Toll-like receptor 4 (TLR4). In this study, we explore the use of the synthetic, non-toxic, lipid A analog CRX-527 as an adjuvant for peptide cancer vaccines. This well-defined adjuvant was covalently conjugated to antigenic peptides as a strategy to improve vaccine efficacy. We show that coupling of this TLR4 agonist to peptide antigens improves vaccine uptake by dendritic cells (DCs), maturation of DCs and T cell activation in vitro, and stimulates DC migration and functional T cell priming in vivo. This translates into enhanced tumor protection upon prophylactic and therapeutic vaccination via intradermal injection against B16-OVA melanoma and HPV-related TC1 tumors. These results highlight the potential of CRX-527 as an adjuvant for molecularly defined cancer vaccines, and support the design of adjuvant-peptide conjugates as a strategy to optimize vaccine formulation.
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Loi JK, Alexandre YO, Senthil K, Schienstock D, Sandford S, Devi S, Christo SN, Mackay LK, Chinnery HR, Osborne PB, Downie LE, Sloan EK, Mueller SN. Corneal tissue-resident memory T cells form a unique immune compartment at the ocular surface. Cell Rep 2022; 39:110852. [PMID: 35613584 DOI: 10.1016/j.celrep.2022.110852] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 03/27/2022] [Accepted: 04/29/2022] [Indexed: 11/03/2022] Open
Abstract
The eye is considered immune privileged such that immune responses are dampened to protect vision. As the most anterior compartment of the eye, the cornea is exposed to pathogens and can mount immune responses that recruit effector T cells. However, presence of immune memory in the cornea is not defined. Here, we use intravital 2-photon microscopy to examine T cell responses in the cornea in mice. We show that recruitment of CD8+ T cells in response to ocular virus infection results in the formation of tissue-resident memory T (TRM) cells. Motile corneal TRM cells patrol the cornea and rapidly respond in situ to antigen rechallenge. CD103+ TRM cell generation requires antigen and transforming growth factor β. In vivo imaging in humans also reveals highly motile cells that patrol the healthy cornea. Our study finds that TRM cells form in the cornea where they can provide local protective immunity.
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Affiliation(s)
- Joon Keit Loi
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Yannick O Alexandre
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Kirthana Senthil
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Dominik Schienstock
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Sarah Sandford
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Sapna Devi
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Susan N Christo
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia
| | - Holly R Chinnery
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Peregrine B Osborne
- Department of Anatomy and Neuroscience, The University of Melbourne, Melbourne, VIC, Australia
| | - Laura E Downie
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, VIC, Australia
| | - Erica K Sloan
- Drug Discovery Biology Theme, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, VIC, Australia; Division of Surgery, Peter MacCallum Cancer Center, Melbourne, VIC, Australia
| | - Scott N Mueller
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Melbourne, VIC, Australia.
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HSV-1 Infection of Epithelial Dendritic Cells Is a Critical Strategy for Interfering with Antiviral Immunity. Viruses 2022; 14:v14051046. [PMID: 35632787 PMCID: PMC9147763 DOI: 10.3390/v14051046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/06/2022] [Accepted: 05/12/2022] [Indexed: 11/17/2022] Open
Abstract
Herpes simplex virus type 1 (HSV-1), an α subgroup member of the human herpesvirus family, infects cells via the binding of its various envelope glycoproteins to cellular membrane receptors, one of which is herpes virus entry mediator (HVEM), expressed on dendritic cells. Here, HVEM gene-deficient mice were used to investigate the immunologic effect elicited by the HSV-1 infection of dendritic cells. Dendritic cells expressing the surface marker CD11c showed an abnormal biological phenotype, including the altered transcription of various immune signaling molecules and inflammatory factors associated with innate immunity after viral replication. Furthermore, the viral infection of dendritic cells interfered with dendritic cell function in the lymph nodes, where these cells normally play roles in activating the T-cell response. Additionally, the mild clinicopathological manifestations observed during the acute phase of HSV-1 infection were associated with viral replication in dendritic cells.
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Nakagawa Y, Egawa G, Miyake T, Nakajima S, Otsuka A, Nomura T, Kitoh A, Dainichi T, Sakabe JI, Shibaki A, Tokura Y, Honda T, Kabashima K. A phenotypic analysis of involucrin-mOVA mice following adoptive transfer of OVA-specific CD8+ T cells. JID INNOVATIONS 2022; 2:100127. [PMID: 36090298 PMCID: PMC9460514 DOI: 10.1016/j.xjidi.2022.100127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 11/03/2022] Open
Abstract
To investigate the mechanism of autoimmunity and peripheral tolerance in the skin, several transgenic mouse strains expressing membrane-bound ovalbumin (mOVA) as an epidermal self-antigen under the control of keratinocyte-specific promotors, such as keratin 5 and keratin 14, were employed in combination with adoptive transfer of CD8+ T cells from OT-I mice (OT-I T cells) that recognize an ovalbumin-derived peptide. However, these strains showed bodyweight loss and required additional inflammatory stimuli, such as γ-irradiation and tape-stripping, to induce skin inflammation. In this study, we generated a mouse strain expressing mOVA under the control of human involucrin promoter (involucrin-mOVA mice). In contrast to previous strains, involucrin-mOVA mice spontaneously developed skin inflammation after the transfer of OT-I T cells in the absence of external stimuli without significant bodyweight loss. We focused on the skin infiltration process of OT-I T cells and found that transferred OT-I T cells accumulated around the hair follicles in the early phase of skin inflammation, and in the later phase, the skin inflammation spontaneously resolved despite the remaining OT-I T cells in the skin. Our involucrin-mOVA mice will provide a promising tool to investigate the pathogenesis and the tolerance mechanisms of cytotoxic skin autoimmunity.
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Tesfaye DY, Bobic S, Lysén A, Huszthy PC, Gudjonsson A, Braathen R, Bogen B, Fossum E. Targeting Xcr1 on Dendritic Cells Rapidly Induce Th1-Associated Immune Responses That Contribute to Protection Against Influenza Infection. Front Immunol 2022; 13:752714. [PMID: 35296089 PMCID: PMC8918470 DOI: 10.3389/fimmu.2022.752714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 02/02/2022] [Indexed: 11/13/2022] Open
Abstract
Targeting antigen to conventional dendritic cells (cDCs) can improve antigen-specific immune responses and additionally be used to influence the polarization of the immune responses. However, the mechanisms by which this is achieved are less clear. To improve our understanding, we here evaluate molecular and cellular requirements for CD4+ T cell and antibody polarization after immunization with Xcl1-fusion vaccines that specifically target cDC1s. Xcl1-fusion vaccines induced an IgG2a/IgG2b-dominated antibody response and rapid polarization of Th1 cells both in vitro and in vivo. For comparison, we included fliC-fusion vaccines that almost exclusively induced IgG1, despite inducing a more mixed polarization of T cells. Th1 polarization and IgG2a induction with Xcl1-fusion vaccines required IL-12 secretion but were nevertheless maintained in BATF3-/- mice which lack IL-12-secreting migratory DCs. Interestingly, induction of IgG2a-dominated responses was highly dependent on the early kinetics of Th1 induction and was important for optimal protection in an influenza infection model. Early Th1 induction was dominant, since a combined Xcl1- and fliC-fusion vaccine induced IgG2a/IgG2b polarized antibody responses similar to Xcl1-fusion vaccines alone. In summary, our results demonstrate that targeting antigen to Xcr1+ cDC1s is an efficient strategy for enhancing IgG2a antibody responses through rapid Th1 induction, which can be utilized for improved vaccine design.
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Affiliation(s)
- Demo Yemane Tesfaye
- Department of Immunology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
- Kristian Gerhard Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Sonja Bobic
- Department of Immunology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
- Kristian Gerhard Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Anna Lysén
- Department of Immunology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
- Kristian Gerhard Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Peter Csaba Huszthy
- Department of Immunology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
- Center for Immune Regulation, Institute of Immunology, University of Oslo and Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Arnar Gudjonsson
- Department of Immunology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
- Kristian Gerhard Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Ranveig Braathen
- Department of Immunology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
- Kristian Gerhard Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Bjarne Bogen
- Department of Immunology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
- Kristian Gerhard Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
- Center for Immune Regulation, Institute of Immunology, University of Oslo and Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Even Fossum
- Department of Immunology, Division of Laboratory Medicine, Oslo University Hospital, Oslo, Norway
- Kristian Gerhard Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
- *Correspondence: Even Fossum,
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Tognarelli EI, Retamal-Díaz A, Farías MA, Duarte LF, Palomino TF, Ibañez FJ, Riedel CA, Kalergis AM, Bueno SM, González PA. Pharmacological Inhibition of IRE-1 Alpha Activity in Herpes Simplex Virus Type 1 and Type 2-Infected Dendritic Cells Enhances T Cell Activation. Front Immunol 2022; 12:764861. [PMID: 35069537 PMCID: PMC8766714 DOI: 10.3389/fimmu.2021.764861] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 12/06/2021] [Indexed: 12/25/2022] Open
Abstract
Herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) infections are life-long and highly prevalent in the human population. These viruses persist in the host, eliciting either symptomatic or asymptomatic infections that may occur sporadically or in a recurrent manner through viral reactivations. Clinical manifestations due to symptomatic infection may be mild such as orofacial lesions, but may also translate into more severe diseases, such as ocular infections that may lead to blindness and life-threatening encephalitis. A key feature of herpes simplex viruses (HSVs) is that they have evolved molecular determinants that hamper numerous components of the host’s antiviral innate and adaptive immune system. Importantly, HSVs infect and negatively modulate the function of dendritic cells (DCs), by inhibiting their T cell-activating capacity and eliciting their apoptosis after infection. Previously, we reported that HSV-2 activates the splicing of the mRNA of XBP1, which is related to the activity of the unfolded protein response (UPR) factor Inositol-Requiring Enzyme 1 alpha (IRE-1α). Here, we sought to evaluate if the activation of the IRE-1α pathway in DCs upon HSV infection may be related to impaired DC function after infection with HSV-1 or HSV-2. Interestingly, the pharmacological inhibition of the endonuclease activity of IRE-1α in HSV-1- and HSV-2-infected DCs significantly reduced apoptosis in these cells and enhanced their capacity to migrate to lymph nodes and activate virus-specific CD4+ and CD8+ T cells. These findings suggest that the activation of the IRE-1α-dependent UPR pathway in HSV-infected DCs may play a significant role in the negative effects that these viruses exert over these cells and that the modulation of this signaling pathway may be relevant for enhancing the function of DCs upon infection with HSVs.
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Affiliation(s)
- Eduardo I Tognarelli
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Angello Retamal-Díaz
- Millennium Institute on Immunology and Immunotherapy, Departamento de Biotecnología, Facultad de Ciencias del Mar y de Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile
| | - Mónica A Farías
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Luisa F Duarte
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Tomás F Palomino
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco J Ibañez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Claudia A Riedel
- Millennium Institute on Immunology and Immunotherapy, Departamento de Biología Celular, Facultad de Ciencias de la Vida, Universidad Andrés Bello, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Millennium Institute on Immunology and Immunotherapy, Departamento de Endocrinología, Facultad de Medicina, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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Noncognate Signals Drive Enhanced Effector CD8 + T Cell Responses through an IFNAR1-Dependent Pathway after Infection with the Prototypic Vaccine, 0ΔNLS, against Herpes Simplex Virus 1. J Virol 2022; 96:e0172421. [PMID: 35045268 DOI: 10.1128/jvi.01724-21] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Previous studies by our group identified a highly efficacious vaccine 0ΔNLS (deficient in the nuclear localization signal of infected cell protein 0) against HSV-1 in an experimental ocular mouse model. However, details regarding fundamental differences in the initial innate and adaptive host immune response were not explored. Here, we present a side-by-side analysis of the primary infection characterizing differences of the host immune response in mice infected with 0ΔNLS versus the parental, GFP105. The results show that local viral infection and replication are controlled more efficiently in mice exposed to 0ΔNLS versus GFP105 but clearance of infectious virus is equivalent comparing the two groups. Moreover, the 0ΔNLS-infected mice displayed enhanced effector CD8+ but not CD4+ T cell responses from the draining lymph nodes at day 7 post infection measured by IFN-γ and TNF-α production along with changes in cell metabolism. The increased effector function of CD8+ T cells from 0ΔNLS-infected mice was not driven by changes in antigen presentation but lost in the absence of a functional type I IFN pathway. These results are further supported by enhanced local expression of type I IFN and IFN-inducible genes along with increased IL-12 production by CD8α+DCs in the draining lymph nodes of 0ΔNLS-infected mice compared to the GFP105-infected animals. It was also noted the recall to HSV-1 antigen by CD8+ T cells was elevated in mice infected with HSV-1 0ΔNLS compared to GFP105. Collectively, the results underscore the favorable qualities of HSV-1 0ΔNLS as a candidate vaccine against HSV-1 infection. IMPORTANCE Cytotoxic T lymphocytes (CTLs) play a critical role in the clearance for many viral pathogens including herpes simplex virus 1 (HSV-1). Here, we compared the cellular innate and adaptive immune response in mice infected with an attenuated HSV-1 (0ΔNLS) found to be a highly successful experimental prophylactic vaccine to parental HSV-1 virus. We found that CD8+ T cell effector function is elevated in 0ΔNLS-infected mice through noncognate signals including IL-12 and type I interferon (IFN) pathways along with changes in CD8+ T cell metabolism whereas other factors including cell proliferation, co-stimulatory molecule expression and antigen presentation were dispensable. Thus, an increase in CTL activity established by exposure to HSV-1 0ΔNLS in comparison to parental HSV-1 likely contributes to the efficacy of the vaccine and underscores the nature of the attenuated virus as a vaccine candidate for HSV-1 infection.
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Barrett LW, Fear VS, Foley B, Audsley K, Barnes S, Newnes H, McDonnell A, Wood FM, Fear MW, Waithman J. Non-severe burn injury increases cancer incidence in mice and has long-term impacts on the activation and function of T cells. BURNS & TRAUMA 2022; 10:tkac016. [PMID: 35505970 PMCID: PMC9054911 DOI: 10.1093/burnst/tkac016] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Revised: 01/13/2022] [Indexed: 11/30/2022]
Abstract
Background Recent evidence suggests that burn patients are at increased risk of hospital admission for infection, mental health conditions, cardiovascular disease and cancer for many years after discharge for the burn injury itself. Burn injury has also been shown to induce sustained immune system dysfunction. This change to immune function may contribute to the increased risk of chronic disease observed. However, the mechanisms that disrupt long-term immune function in response to burn trauma, and their link to long-term morbidity, remain unknown. In this study we investigated changes to immune function after burn injury using a murine model of non-severe injury. Methods An established mouse model of non-severe burn injury (full thickness burn equivalent to 8% total body surface area) was used in combination with an orthotopic model of B16 melanoma to investigate the link between burns and cancer. Considering that CD8+ T cells are important drivers of effective tumour suppression in this model, we also investigated potential dysregulation of this immune population using mouse models of burn injury in combination with herpes simplex virus infection. Flow cytometry was used to detect and quantify cell populations of interest and changes in immune function. Results We demonstrate that 4 weeks after a non-severe burn injury, mice were significantly more susceptible to tumour development than controls using an orthotopic model of B16 melanoma. In addition, our results reveal that CD8+ T cell expansion, differentiation and memory potential is significantly impaired at 1 month post-burn. Conclusions Our data suggests that CD8+ T cell-mediated immunity may be dysfunctional for a sustained period after even non-severe burn injury. Further studies in patients to validate these findings may support clinical intervention to restore or protect immunity in patients after burn injury and reduce the increased risk of secondary morbidities observed.
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Affiliation(s)
- Lucy W Barrett
- Burn Injury Research Unit, School of Biomedical Sciences, University of Western Australia, Crawley, WA, 6009, Australia
- Telethon Kids Institute, University of Western Australia, Northern Entrance, Perth Children’s Hospital, 15 Hospital Ave, Nedlands, WA, 6009, Australia
- Fiona Wood Foundation, Fiona Stanley Hospital, MNH (B), Main Hospital, CD 15, Level 4, Burns Unit, 102-118 Murdoch Drive, Murdoch, WA, 6150, Australia
| | - Vanessa S Fear
- Telethon Kids Institute, University of Western Australia, Northern Entrance, Perth Children’s Hospital, 15 Hospital Ave, Nedlands, WA, 6009, Australia
| | - Bree Foley
- Telethon Kids Institute, University of Western Australia, Northern Entrance, Perth Children’s Hospital, 15 Hospital Ave, Nedlands, WA, 6009, Australia
| | - Katherine Audsley
- Telethon Kids Institute, University of Western Australia, Northern Entrance, Perth Children’s Hospital, 15 Hospital Ave, Nedlands, WA, 6009, Australia
| | - Samantha Barnes
- Telethon Kids Institute, University of Western Australia, Northern Entrance, Perth Children’s Hospital, 15 Hospital Ave, Nedlands, WA, 6009, Australia
| | - Hannah Newnes
- Telethon Kids Institute, University of Western Australia, Northern Entrance, Perth Children’s Hospital, 15 Hospital Ave, Nedlands, WA, 6009, Australia
| | - Alison McDonnell
- Telethon Kids Institute, University of Western Australia, Northern Entrance, Perth Children’s Hospital, 15 Hospital Ave, Nedlands, WA, 6009, Australia
| | - Fiona M Wood
- Burn Injury Research Unit, School of Biomedical Sciences, University of Western Australia, Crawley, WA, 6009, Australia
- Fiona Wood Foundation, Fiona Stanley Hospital, MNH (B), Main Hospital, CD 15, Level 4, Burns Unit, 102-118 Murdoch Drive, Murdoch, WA, 6150, Australia
- Burns Service of Western Australia, WA Department of Health, Nedlands, WA, 6009, Australia
| | - Mark W Fear
- Fiona Wood Foundation, Fiona Stanley Hospital, MNH (B), Main Hospital, CD 15, Level 4, Burns Unit, 102-118 Murdoch Drive, Murdoch, WA, 6150, Australia
- Burns Service of Western Australia, WA Department of Health, Nedlands, WA, 6009, Australia
| | - Jason Waithman
- Telethon Kids Institute, University of Western Australia, Northern Entrance, Perth Children’s Hospital, 15 Hospital Ave, Nedlands, WA, 6009, Australia
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Braverman J, Monk IR, Ge C, Westall GP, Stinear TP, Wakim LM. Staphylococcus aureus specific lung resident memory CD4 + Th1 cells attenuate the severity of influenza virus induced secondary bacterial pneumonia. Mucosal Immunol 2022; 15:783-796. [PMID: 35637249 PMCID: PMC9148937 DOI: 10.1038/s41385-022-00529-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 03/25/2022] [Accepted: 05/03/2022] [Indexed: 02/04/2023]
Abstract
Staphylococcus aureus is a major cause of severe pulmonary infections. The evolution of multi-drug resistant strains limits antibiotic treatment options. To date, all candidate vaccines tested have failed, highlighting the need for an increased understanding of the immunological requirements for effective S. aureus immunity. Using an S. aureus strain engineered to express a trackable CD4+ T cell epitope and a murine model of S. aureus pneumonia, we show strategies that lodge Th1 polarised bacterium specific CD4+ tissue resident memory T cells (Trm) in the lung can significantly attenuate the severity of S. aureus pneumonia. This contrasts natural infection of mice that fails to lodge CD4+ Trm cells along the respiratory tract or provide protection against re-infection, despite initially generating Th17 bacterium specific CD4+ T cell responses. Interestingly, lack of CD4+ Trm formation after natural infection in mice appears to be reflected in humans, where the frequency of S. aureus reactive CD4+ Trm cells in lung tissue is also low. Our findings reveal the protective capacity of S. aureus specific respiratory tract CD4+ Th1 polarised Trm cells and highlight the potential for targeting these cells in vaccines that aim to prevent the development of S. aureus pneumonia.
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Affiliation(s)
- Jessica Braverman
- grid.1008.90000 0001 2179 088XDepartment of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3000 Australia
| | - Ian R. Monk
- grid.1008.90000 0001 2179 088XDepartment of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3000 Australia
| | - Chenghao Ge
- grid.1008.90000 0001 2179 088XDepartment of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3000 Australia ,grid.12527.330000 0001 0662 3178School of Medicine, Tsinghua University, Beijing, China
| | - Glen P. Westall
- grid.1002.30000 0004 1936 7857Lung Transplant Service, Alfred Hospital, Melbourne, Victoria, Australia; Department of Medicine, Monash University, Melbourne, VIC Australia
| | - Timothy P. Stinear
- grid.1008.90000 0001 2179 088XDepartment of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3000 Australia
| | - Linda M. Wakim
- grid.1008.90000 0001 2179 088XDepartment of Microbiology and Immunology, The University of Melbourne, at the Peter Doherty Institute for Infection and Immunity, Melbourne, VIC 3000 Australia
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40
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Lysén A, Gudjonsson A, Tesfaye DY, Bobic S, Bern M, Bogen B, Fossum E. Intranasal delivery of a cDC1 targeted influenza vaccine with poly(I:C) enhances T cell responses and protects against influenza infection. Scand J Immunol 2021; 95:e13128. [PMID: 34923667 DOI: 10.1111/sji.13128] [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: 05/31/2021] [Revised: 11/19/2021] [Accepted: 12/10/2021] [Indexed: 11/27/2022]
Abstract
Targeting antigens to dendritic cells represent a promising method for enhancing immune responses against specific antigens. However, many studies have focused on systemic delivery (intravenous or intraperitoneally) of targeted antigen, approaches that are not easily transferable to humans. Here we evaluate the efficacy of an influenza vaccine targeting Xcr1+ cDC1 administered by intranasal immunization. Intranasal delivery of antigen fused to the chemokine Xcl1, the ligand of Xcr1, resulted in specific uptake by lung CD103+ cDC1. Interestingly, intranasal immunization with influenza A/PR/8/34 haemagglutinin (HA) fused to Xcl1, formulated with poly(I:C), resulted in enhanced induction of antigen-specific IFNγ+ CD4+ and IFNγ+ CD8+ T cell responses in lung compared non-targeted anti-NIP-HA (αNIP-HA). Induction of antibody responses was, however, similar in Xcl1-HA and αNIP-HA immunized mice, but significantly higher than in mice immunized with monomeric HA. Both Xcl1-HA and αNIP-HA vaccines induced full protection when mice were challenged with a lethal dose of influenza PR8 virus, reflecting the strong induction of HA-specific antibodies. Our results demonstrate that i.n. delivery of Xcl1-HA is a promising vaccine strategy for enhancing T cell responses in addition to inducing strong antibody responses.
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Affiliation(s)
- Anna Lysén
- K.G. Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Arnar Gudjonsson
- K.G. Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Demo Yemane Tesfaye
- K.G. Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Sonja Bobic
- K.G. Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
| | - Malin Bern
- Center for Immune Regulation, Institute of Immunology, University of Oslo and Oslo University Hospital Rikshospitalet, Oslo, Norway.,Institute of Clinical Medicine and Department of Pharmacology, University of Oslo, Oslo, Norway
| | - Bjarne Bogen
- K.G. Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway.,Center for Immune Regulation, Institute of Immunology, University of Oslo and Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Even Fossum
- K.G. Jebsen Center for Research on Influenza Vaccines, University of Oslo and Oslo University Hospital, Oslo, Norway
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41
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Abstract
Herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) are highly prevalent in the human population. These viruses cause lifelong infections by establishing latency in neurons and undergo sporadic reactivations that promote recurrent disease and new infections. The success of HSVs in persisting in infected individuals is likely due to their multiple molecular determinants involved in escaping the host antiviral and immune responses. Importantly, HSVs infect and negatively modulate the function of dendritic cells (DCs), key immune cells that are involved in establishing effective and balanced immunity against viruses. Here, we review and discuss several molecular and cellular processes modulated by HSVs in DCs, such as autophagy, apoptosis, and the unfolded protein response. Given the central role of DCs in establishing optimal antiviral immunity, particular emphasis should be given to the outcome of the interactions occurring between HSVs and DCs.
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Affiliation(s)
- Farías Ma
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Duarte Lf
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Tognarelli Ei
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - González Pa
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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42
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Almeida MS, Shibagaki S, Tahara-Hanaoka S, Shibayama S, Shibuya A. An inhibitory immunoreceptor, Allergin-1, suppresses FITC-induced type 2 contact hypersensitivity. Biochem Biophys Res Commun 2021; 579:146-152. [PMID: 34601199 DOI: 10.1016/j.bbrc.2021.09.048] [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: 08/20/2021] [Accepted: 09/18/2021] [Indexed: 11/17/2022]
Abstract
Although allergic contact dermatitis (ACD) is the most common T cell-mediated inflammatory responses against an allergen in the skin, the pathogenesis of ACD remains incompletely understood. In the sensitization phase in ACD, hapten-bearing dermal dendritic cells (DCs) play a pivotal role in the transport of an antigen to the lymph nodes (LNs), where they present the antigen to naïve T cells. Here we report that Allergin-1, an inhibitory immunoreceptor containing immunoreceptor tyrosine-based inhibitory motif (ITIM) in the cytoplasmic region, is highly expressed on dermal DCs. Mice deficient in Allergin-1 exhibited exacerbated fluorescein isothiocyanate (FITC)-induced type 2 contact hypersensitivity (CHS) such as ear swelling and skin eosinophilia. Allergin-1-deficient mice also showed larger numbers of CD4+ T cells and FITC-bearing DCs and greater expressions of type 2 cytokines, including IL-5, IL-10 and IL-13, in the draining LNs than did wild type mice. In sharp contrast, Allergin-1-deficient mice showed comparable level of type 1 CHS induced by 2,4-dinitrofluorobenzene (DNFB). These results suggest that Allergin-1 on dermal DC inhibits type 2, but not type 1, immune responses in the sensitization phase of CHS.
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Affiliation(s)
- Mariana Silva Almeida
- Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; Department of Immunology, Faculty of Medicine, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Shohei Shibagaki
- Doctoral Program in Biomedical Sciences, Graduate School of Comprehensive Human Sciences, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; Department of Immunology, Faculty of Medicine, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; R&D Center for Innovative Drug Discovery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan
| | - Satoko Tahara-Hanaoka
- Department of Immunology, Faculty of Medicine, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; R&D Center for Innovative Drug Discovery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
| | - Shiro Shibayama
- Research Center of Immunology, Tsukuba Institute, ONO Pharmaceutical Company, Ltd., 17-2 Wadai, Tsukuba, Ibaraki, 300-4247, Japan
| | - Akira Shibuya
- Department of Immunology, Faculty of Medicine, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan; R&D Center for Innovative Drug Discovery, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, 305-8575, Japan.
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43
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Wu Z, Hu T, Chintoan-Uta C, Macdonald J, Stevens MP, Sang H, Hume DA, Kaiser P, Balic A. Development of novel reagents to chicken FLT3, XCR1 and CSF2R for the identification and characterization of avian conventional dendritic cells. Immunology 2021; 165:171-194. [PMID: 34767637 DOI: 10.1111/imm.13426] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 09/30/2021] [Accepted: 10/18/2021] [Indexed: 12/12/2022] Open
Abstract
Conventional dendritic cells (cDC) are bone marrow-derived immune cells that play a central role in linking innate and adaptive immunity. cDCs efficiently uptake, process and present antigen to naïve T cells, driving clonal expansion of antigen-specific T-cell responses. In chicken, vital reagents are lacking for the efficient and precise identification of cDCs. In this study, we have developed several novel reagents for the identification and characterization of chicken cDCs. Chicken FLT3 cDNA was cloned and a monoclonal antibody to cell surface FLT3 was generated. This antibody identified a distinct FLT3HI splenic subset which lack expression of signature markers for B cells, T cells or monocyte/macrophages. By combining anti-FLT3 and CSF1R-eGFP transgenic expression, three major populations within the mononuclear phagocyte system were identified in the spleen. The cDC1 subset of mammalian cDCs express the chemokine receptor XCR1. To characterize chicken cDCs, a synthetic chicken chemokine (C motif) ligand (XCL1) peptide conjugated to Alexa Fluor 647 was developed (XCL1AF647 ). Flow cytometry staining of XCL1AF647 on splenocytes showed that all chicken FLT3HI cells exclusively express XCR1, supporting the hypothesis that this population comprises bona fide chicken cDCs. Further analysis revealed that chicken cDCs expressed CSF1R but lacked the expression of CSF2R. Collectively, the cell surface phenotypes of chicken cDCs were partially conserved with mammalian XCR1+ cDC1, with distinct differences in CSF1R and CSF2R expression compared with mammalian orthologues. These original reagents allow the efficient identification of chicken cDCs to investigate their important roles in the chicken immunity and diseases.
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Affiliation(s)
- Zhiguang Wu
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, UK
| | - Tuanjun Hu
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, UK
| | | | - Joni Macdonald
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, UK
| | - Mark P Stevens
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, UK
| | - Helen Sang
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, UK
| | - David A Hume
- Translational Research Institute, Mater Research Institute-University of Queensland, Woolloongabba, Qld, Australia
| | - Pete Kaiser
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, UK
| | - Adam Balic
- The Roslin Institute, University of Edinburgh, Easter Bush, Midlothian, UK
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44
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Nakazawa Y, Nishiyama N, Koizumi H, Kanemaru K, Nakahashi-Oda C, Shibuya A. Tumor-derived extracellular vesicles regulate tumor-infiltrating regulatory T cells via the inhibitory immunoreceptor CD300a. eLife 2021; 10:61999. [PMID: 34751648 PMCID: PMC8577836 DOI: 10.7554/elife.61999] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/26/2021] [Indexed: 12/21/2022] Open
Abstract
Although tumor-infiltrating regulatory T (Treg) cells play a pivotal role in tumor immunity, how Treg cell activation are regulated in tumor microenvironments remains unclear. Here, we found that mice deficient in the inhibitory immunoreceptor CD300a on their dendritic cells (DCs) have increased numbers of Treg cells in tumors and greater tumor growth compared with wild-type mice after transplantation of B16 melanoma. Pharmacological impairment of extracellular vesicle (EV) release decreased Treg cell numbers in CD300a-deficient mice. Coculture of DCs with tumor-derived EV (TEV) induced the internalization of CD300a and the incorporation of EVs into endosomes, in which CD300a inhibited TEV-mediated TLR3–TRIF signaling for activation of the IFN-β-Treg cells axis. We also show that higher expression of CD300A was associated with decreased tumor-infiltrating Treg cells and longer survival time in patients with melanoma. Our findings reveal the role of TEV and CD300a on DCs in Treg cell activation in the tumor microenvironment.
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Affiliation(s)
- Yuta Nakazawa
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Doctoral Program of Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Nanako Nishiyama
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Doctoral Program of Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Hitoshi Koizumi
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,Doctoral Program of Biomedical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, Japan
| | - Kazumasa Kanemaru
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,R&D Center for Innovative Drug Discovery, University of Tsukuba, Tsukuba, Japan
| | - Chigusa Nakahashi-Oda
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,R&D Center for Innovative Drug Discovery, University of Tsukuba, Tsukuba, Japan
| | - Akira Shibuya
- Department of Immunology, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan.,R&D Center for Innovative Drug Discovery, University of Tsukuba, Tsukuba, Japan.,Life Science Center for Survival Dynamics, Tsukuba Advanced Research Alliance (TARA), University of Tsukuba, Tsukuba, Japan
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45
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Zhu M. Immunological perspectives on spatial and temporal vaccine delivery. Adv Drug Deliv Rev 2021; 178:113966. [PMID: 34506868 DOI: 10.1016/j.addr.2021.113966] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2021] [Revised: 08/22/2021] [Accepted: 09/05/2021] [Indexed: 12/19/2022]
Abstract
The so-called rational design of vaccines has been a very attractive concept and also an important direction for vaccine research and development. However, the underlying rationales, especially on the immunological aspect, remain less systemically and deeply understood. Given the critical role of lymph nodes (LNs) in the induction of B and T cell responses upon vaccination, LN targeting has been a popular strategy in vaccine design. The LN is a highly organized structure; induction of adaptive immune response is highly orchestrated by various types of LN stromal cells and hematopoietic immune cells both spatially and temporally. Thus, not only LN targeting, but also cellular targeting and even subcellular compartment targeting should be considered for specifically enhanced vaccine efficacy. Moreover, temporal control of vaccine antigen and adjuvant delivery may also optimize the immune response.
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46
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Dendritic cell migration in inflammation and immunity. Cell Mol Immunol 2021; 18:2461-2471. [PMID: 34302064 PMCID: PMC8298985 DOI: 10.1038/s41423-021-00726-4] [Citation(s) in RCA: 144] [Impact Index Per Article: 48.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/09/2021] [Indexed: 02/08/2023] Open
Abstract
Dendritic cells (DCs) are the key link between innate immunity and adaptive immunity and play crucial roles in both the promotion of immune defense and the maintenance of immune tolerance. The trafficking of distinct DC subsets across lymphoid and nonlymphoid tissues is essential for DC-dependent activation and regulation of inflammation and immunity. DC chemotaxis and migration are triggered by interactions between chemokines and their receptors and regulated by multiple intracellular mechanisms, such as protein modification, epigenetic reprogramming, metabolic remodeling, and cytoskeletal rearrangement, in a tissue-specific manner. Dysregulation of DC migration may lead to abnormal positioning or activation of DCs, resulting in an imbalance of immune responses and even immune pathologies, including autoimmune responses, infectious diseases, allergic diseases and tumors. New strategies targeting the migration of distinct DC subsets are being explored for the treatment of inflammatory and infectious diseases and the development of novel DC-based vaccines. In this review, we will discuss the migratory routes and immunological consequences of distinct DC subsets, the molecular basis and regulatory mechanisms of migratory signaling in DCs, and the association of DC migration with the pathogenesis of autoimmune and infectious diseases.
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47
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Abstract
Two of the most prevalent human viruses worldwide, herpes simplex virus type 1 and type 2 (HSV-1 and HSV-2, respectively), cause a variety of diseases, including cold sores, genital herpes, herpes stromal keratitis, meningitis and encephalitis. The intrinsic, innate and adaptive immune responses are key to control HSV, and the virus has developed mechanisms to evade them. The immune response can also contribute to pathogenesis, as observed in stromal keratitis and encephalitis. The fact that certain individuals are more prone than others to suffer severe disease upon HSV infection can be partially explained by the existence of genetic polymorphisms in humans. Like all herpesviruses, HSV has two replication cycles: lytic and latent. During lytic replication HSV produces infectious viral particles to infect other cells and organisms, while during latency there is limited gene expression and lack of infectious virus particles. HSV establishes latency in neurons and can cause disease both during primary infection and upon reactivation. The mechanisms leading to latency and reactivation and which are the viral and host factors controlling these processes are not completely understood. Here we review the HSV life cycle, the interaction of HSV with the immune system and three of the best-studied pathologies: Herpes stromal keratitis, herpes simplex encephalitis and genital herpes. We also discuss the potential association between HSV-1 infection and Alzheimer's disease.
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Affiliation(s)
- Shuyong Zhu
- Institute of Virology, Hannover Medical School, Cluster of Excellence RESIST (Exc 2155), Hannover Medical School, Hannover, Germany
| | - Abel Viejo-Borbolla
- Institute of Virology, Hannover Medical School, Cluster of Excellence RESIST (Exc 2155), Hannover Medical School, Hannover, Germany
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48
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Li J, Panetta F, O'Keeffe M, Leal Rojas IM, Radford KJ, Zhang JG, Fernandez-Ruiz D, Davey GM, Gully BS, Tullett KM, Rossjohn J, Berry R, Lee CN, Lahoud MH, Heath WR, Caminschi I. Elucidating the Motif for CpG Oligonucleotide Binding to the Dendritic Cell Receptor DEC-205 Leads to Improved Adjuvants for Liver-Resident Memory. THE JOURNAL OF IMMUNOLOGY 2021; 207:1836-1847. [PMID: 34479944 DOI: 10.4049/jimmunol.2001153] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 08/03/2021] [Indexed: 11/19/2022]
Abstract
DEC-205 is a cell-surface receptor that transports bound ligands into the endocytic pathway for degradation or release within lysosomal endosomes. This receptor has been reported to bind a number of ligands, including keratin, and some classes of CpG oligodeoxynucleotides (ODN). In this study, we explore in detail the requirements for binding ODNs, revealing that DEC-205 efficiently binds single-stranded, phosphorothioated ODN of ≥14 bases, with preference for the DNA base thymidine, but with no requirement for a CpG motif. DEC-205 fails to bind double-stranded phosphodiester ODN, and thus does not bind the natural type of DNA found in mammals. The ODN binding preferences of DEC-205 result in strong binding of B class ODN, moderate binding to C class ODN, minimal binding to P class ODN, and no binding to A class ODN. Consistent with DEC-205 binding capacity, induction of serum IL-12p70 or activation of B cells by each class of ODN correlated with DEC-205 dependence in mice. Thus, the greater the DEC-205 binding capacity, the greater the dependence on DEC-205 for optimal responses. Finally, by covalently linking a B class ODN that efficiently binds DEC-205, to a P class ODN that shows poor binding, we improved DEC-205 binding and increased adjuvancy of the hybrid ODN. The hybrid ODN efficiently enhanced induction of effector CD8 T cells in a DEC-205-dependent manner. Furthermore, the hybrid ODN induced robust memory responses, and was particularly effective at promoting the development of liver tissue-resident memory T cells.
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Affiliation(s)
- Jessica Li
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia
| | - Fatma Panetta
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Meredith O'Keeffe
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Ingrid M Leal Rojas
- Cancer Immunotherapies Laboratory, Mater Research Institute, University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Kristen J Radford
- Cancer Immunotherapies Laboratory, Mater Research Institute, University of Queensland, Translational Research Institute, Brisbane, Queensland, Australia
| | - Jian-Guo Zhang
- The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Daniel Fernandez-Ruiz
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Gayle M Davey
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia
| | - Benjamin S Gully
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia
| | - Kirsteen M Tullett
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - Jamie Rossjohn
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia.,Institute of Infection and Immunity, Cardiff University School of Medicine, Heath Park, Cardiff, United Kingdom
| | - Richard Berry
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia
| | - Chin-Nien Lee
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA; and
| | - Mireille H Lahoud
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia
| | - William R Heath
- Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia; .,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, University of Melbourne, Parkville, Victoria, Australia
| | - Irina Caminschi
- Infection and Immunity Program, Monash Biomedicine Discovery Institute and Department of Biochemistry and Molecular Biology, Monash University, Clayton, Victoria, Australia.,Department of Microbiology and Immunology, The University of Melbourne, The Peter Doherty Institute for Infection and Immunity, Parkville, Victoria, Australia
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49
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Boutet M, Benet Z, Guillen E, Koch C, M’Homa Soudja S, Delahaye F, Fooksman D, Lauvau G. Memory CD8 + T cells mediate early pathogen-specific protection via localized delivery of chemokines and IFNγ to clusters of monocytes. SCIENCE ADVANCES 2021; 7:eabf9975. [PMID: 34516896 PMCID: PMC8442869 DOI: 10.1126/sciadv.abf9975] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 07/12/2021] [Indexed: 06/13/2023]
Abstract
While cognate antigen drives clonal expansion of memory CD8+ T (CD8+ TM) cells to achieve sterilizing immunity in immunized hosts, not much is known on how cognate antigen contributes to early protection before clonal expansion occurs. Here, using distinct models of immunization, we establish that cognate antigen recognition by CD8+ TM cells on dendritic cells initiates their rapid and coordinated production of a burst of CCL3, CCL4, and XCL1 chemokines under the transcriptional control of interferon (IFN) regulatory factor 4. Using intravital microscopy imaging, we reveal that CD8+ TM cells undergo antigen-dependent arrest in splenic red pulp clusters of CCR2+Ly6C+ monocytes to which they deliver IFNγ and chemokines. IFNγ enables chemokine-induced microbicidal activities in monocytes for protection. Thus, rapid and effective CD8+ TM cell responses require spatially and temporally coordinated events that quickly restrict microbial pathogen growth through the local delivery of activating chemokines to CCR2+Ly6C+ monocytes.
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Affiliation(s)
- Marie Boutet
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, NY 10461, USA
| | - Zachary Benet
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, NY 10461, USA
- Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Erik Guillen
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, NY 10461, USA
| | - Caroline Koch
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, NY 10461, USA
| | - Saidi M’Homa Soudja
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, NY 10461, USA
| | - Fabien Delahaye
- Department of Genetics, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, NY 10461, USA
- Institut Pasteur de Lille, UMR1283/8199, 59000 Lille, France
| | - David Fooksman
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, NY 10461, USA
- Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Avenue, Bronx, NY 10461, USA
| | - Grégoire Lauvau
- Department of Microbiology and Immunology, Albert Einstein College of Medicine, 1301 Morris Park Avenue, Bronx, NY 10461, USA
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50
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Soedono S, Cho KW. Adipose Tissue Dendritic Cells: Critical Regulators of Obesity-Induced Inflammation and Insulin Resistance. Int J Mol Sci 2021; 22:ijms22168666. [PMID: 34445379 PMCID: PMC8395475 DOI: 10.3390/ijms22168666] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 07/31/2021] [Accepted: 08/09/2021] [Indexed: 12/22/2022] Open
Abstract
Chronic inflammation of the adipose tissue (AT) is a critical component of obesity-induced insulin resistance and type 2 diabetes. Adipose tissue immune cells, including AT macrophages (ATMs), AT dendritic cells (ATDCs), and T cells, are dynamically regulated by obesity and participate in obesity-induced inflammation. Among AT resident immune cells, ATDCs are master immune regulators and engage in crosstalk with various immune cells to initiate and regulate immune responses. However, due to confounding markers and lack of animal models, their exact role and contribution to the initiation and maintenance of AT inflammation and insulin resistance have not been clearly elucidated. This paper reviews the current understanding of ATDCs and their role in obesity-induced AT inflammation. We also provide the potential mechanisms by which ATDCs regulate AT inflammation and insulin resistance in obesity. Finally, this review offers perspectives on ways to better dissect the distinct functions and contributions of ATDCs to obesity.
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Affiliation(s)
- Shindy Soedono
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan 31151, Korea;
| | - Kae Won Cho
- Department of Integrated Biomedical Science, Soonchunhyang University, Cheonan 31151, Korea;
- Soonchunhyang Institute of Medi-Bio Science (SIMS), Soonchunhyang University, Cheonan 31151, Korea
- Correspondence: ; Tel.: +82-41-413-5028
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