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Burton RJ, Raffray L, Moet LM, Cuff SM, White DA, Baker SE, Moser B, O’Donnell VB, Ghazal P, Morgan MP, Artemiou A, Eberl M. Conventional and unconventional T-cell responses contribute to the prediction of clinical outcome and causative bacterial pathogen in sepsis patients. Clin Exp Immunol 2024; 216:293-306. [PMID: 38430552 PMCID: PMC11097916 DOI: 10.1093/cei/uxae019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 02/12/2024] [Accepted: 02/28/2024] [Indexed: 03/04/2024] Open
Abstract
Sepsis is characterized by a dysfunctional host response to infection culminating in life-threatening organ failure that requires complex patient management and rapid intervention. Timely diagnosis of the underlying cause of sepsis is crucial, and identifying those at risk of complications and death is imperative for triaging treatment and resource allocation. Here, we explored the potential of explainable machine learning models to predict mortality and causative pathogen in sepsis patients. By using a modelling pipeline employing multiple feature selection algorithms, we demonstrate the feasibility of identifying integrative patterns from clinical parameters, plasma biomarkers, and extensive phenotyping of blood immune cells. While no single variable had sufficient predictive power, models that combined five and more features showed a macro area under the curve (AUC) of 0.85 to predict 90-day mortality after sepsis diagnosis, and a macro AUC of 0.86 to discriminate between Gram-positive and Gram-negative bacterial infections. Parameters associated with the cellular immune response contributed the most to models predictive of 90-day mortality, most notably, the proportion of T cells among PBMCs, together with expression of CXCR3 by CD4+ T cells and CD25 by mucosal-associated invariant T (MAIT) cells. Frequencies of Vδ2+ γδ T cells had the most profound impact on the prediction of Gram-negative infections, alongside other T-cell-related variables and total neutrophil count. Overall, our findings highlight the added value of measuring the proportion and activation patterns of conventional and unconventional T cells in the blood of sepsis patients in combination with other immunological, biochemical, and clinical parameters.
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Affiliation(s)
- Ross J Burton
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
- Adult Critical Care, University Hospital of Wales, Cardiff and Vale University Health Board, Cardiff, UK
| | - Loïc Raffray
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
- Department of Internal Medicine, Félix Guyon University Hospital of La Réunion, Saint Denis, Réunion Island, France
| | - Linda M Moet
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Simone M Cuff
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Daniel A White
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Sarah E Baker
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Bernhard Moser
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
- Systems Immunity Research Institute, Cardiff University, Cardiff, UK
| | - Valerie B O’Donnell
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
- Systems Immunity Research Institute, Cardiff University, Cardiff, UK
| | - Peter Ghazal
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
- Systems Immunity Research Institute, Cardiff University, Cardiff, UK
| | - Matt P Morgan
- Adult Critical Care, University Hospital of Wales, Cardiff and Vale University Health Board, Cardiff, UK
| | - Andreas Artemiou
- School of Mathematics, Cardiff University, Cardiff, UK
- Department of Information Technologies, University of Limassol, 3025 Limassol, Cyprus
| | - Matthias Eberl
- Division of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
- Systems Immunity Research Institute, Cardiff University, Cardiff, UK
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Katsnelson EN, Spengler A, Domenico J, Couts KL, Loh L, Gapin L, McCarter MD, Tobin RP. Dysfunctional states of unconventional T-cell subsets in cancer. J Leukoc Biol 2024; 115:36-46. [PMID: 37837379 PMCID: PMC10843843 DOI: 10.1093/jleuko/qiad129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/25/2023] [Accepted: 09/28/2023] [Indexed: 10/16/2023] Open
Abstract
Unconventional T cells represent a promising therapeutic agent to overcome the current limitations of immunotherapies due to their universal T-cell receptors, ability to respond directly to cytokine stimulation, and capacity to recruit and modulate conventional immune cells in the tumor microenvironment. Like conventional T cells, unconventional T cells can enter a dysfunctional state, and the functional differences associated with this state may provide insight into the discrepancies observed in their role in antitumor immunity in various cancers. The exhaustive signature of unconventional T cells differs from conventional αβ T cells, and understanding the differences in the mechanisms underlying exhaustive differentiation in these cell types may aid in the discovery of new treatments to improve sustained antitumor responses. Ongoing clinical trials investigating therapies that leverage unconventional T-cell populations have shown success in treating hematologic malignancies and reducing the immunosuppressive tumor environment. However, several hurdles remain to extend these promising results into solid tumors. Here we discuss the current knowledge on unconventional T-cell function/dysfunction and consider how the incorporation of therapies that modulate unconventional T-cell exhaustion may aid in overcoming the current limitations of immunotherapy. Additionally, we discuss how components of the tumor microenvironment alter the functions of unconventional T cells and how these changes can affect tumor infiltration by lymphocytes and alter conventional T-cell responses.
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Affiliation(s)
- Elizabeth N. Katsnelson
- Department of Surgery, Division of Surgical Oncology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Andrea Spengler
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Joanne Domenico
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Kasey L. Couts
- Department of Medicine, Division of Medical Oncology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Liyen Loh
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Laurent Gapin
- Department of Immunology and Microbiology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Martin D. McCarter
- Department of Surgery, Division of Surgical Oncology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
| | - Richard P. Tobin
- Department of Surgery, Division of Surgical Oncology, University of Colorado Anschutz Medical Campus, 12800 E 19th Ave, Aurora, CO 80045, United States
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Manoharan Valerio M, Arana K, Guan J, Chan SW, Yang X, Kurd N, Lee A, Shastri N, Coscoy L, Robey EA. The promiscuous development of an unconventional Qa1b-restricted T cell population. Front Immunol 2023; 14:1250316. [PMID: 38022509 PMCID: PMC10644506 DOI: 10.3389/fimmu.2023.1250316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 10/06/2023] [Indexed: 12/01/2023] Open
Abstract
MHC-E restricted CD8 T cells show promise in vaccine settings, but their development and specificity remain poorly understood. Here we focus on a CD8 T cell population reactive to a self-peptide (FL9) bound to mouse MHC-E (Qa-1b) that is presented in response to loss of the MHC I processing enzyme ERAAP, termed QFL T cells. We find that mature QFL thymocytes are predominantly CD8αβ+CD4-, show signs of agonist selection, and give rise to both CD8αα and CD8αβ intraepithelial lymphocytes (IEL), as well as memory phenotype CD8αβ T cells. QFL T cells require the MHC I subunit β-2 microglobulin (β2m), but do not require Qa1b or classical MHC I for positive selection. However, QFL thymocytes do require Qa1b for agonist selection and full functionality. Our data highlight the relaxed requirements for positive selection of an MHC-E restricted T cell population and suggest a CD8αβ+CD4- pathway for development of CD8αα IELs.
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Affiliation(s)
- Michael Manoharan Valerio
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA, United States
| | - Kathya Arana
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA, United States
| | - Jian Guan
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Shiao Wei Chan
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA, United States
| | - Xiaokun Yang
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA, United States
| | - Nadia Kurd
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA, United States
| | - Angus Lee
- Gene Targeting Facility Cancer Research Laboratory, University of California Berkeley, Berkeley, CA, United States
| | - Nilabh Shastri
- Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Laurent Coscoy
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA, United States
| | - Ellen A. Robey
- Division of Immunology and Molecular Medicine, Department of Molecular and Cell Biology, University of California Berkeley, Berkeley, CA, United States
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4
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Lujan RA, Pei L, Shannon JP, Dábilla N, Dolan PT, Hickman HD. Widespread and dynamic expression of granzyme C by skin-resident antiviral T cells. Front Immunol 2023; 14:1236595. [PMID: 37809077 PMCID: PMC10552530 DOI: 10.3389/fimmu.2023.1236595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Accepted: 08/31/2023] [Indexed: 10/10/2023] Open
Abstract
After recognition of cognate antigen (Ag), effector CD8+ T cells secrete serine proteases called granzymes in conjunction with perforin, allowing granzymes to enter and kill target cells. While the roles for some granzymes during antiviral immune responses are well characterized, the function of others, such as granzyme C and its human ortholog granzyme H, is still unclear. Granzyme C is constitutively expressed by mature, cytolytic innate lymphoid 1 cells (ILC1s). Whether other antiviral effector cells also produce granzyme C and whether it is continually expressed or responsive to the environment is unknown. To explore this, we analyzed granzyme C expression in different murine skin-resident antiviral lymphocytes. At steady-state, dendritic epidermal T cells (DETCs) expressed granzyme C while dermal γδ T cells did not. CD8+ tissue-resident memory T cells (TRM) generated in response to cutaneous viral infection with the poxvirus vaccinia virus (VACV) also expressed granzyme C. Both DETCs and virus-specific CD8+ TRM upregulated granzyme C upon local VACV infection. Continual Ag exposure was not required for maintained TRM expression of granzyme C, although re-encounter with cognate Ag boosted expression. Additionally, IL-15 treatment increased granzyme C expression in both DETCs and TRM. Together, our data demonstrate that granzyme C is widely expressed by antiviral T cells in the skin and that expression is responsive to both environmental stimuli and TCR engagement. These data suggest that granzyme C may have functions other than killing in tissue-resident lymphocytes.
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Affiliation(s)
- Ramon A. Lujan
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, United States
- School of Nursing, Duke University, Durham, NC, United States
| | - Luxin Pei
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, United States
| | - John P. Shannon
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, United States
| | - Nathânia Dábilla
- Quantitative Virology and Evolution Unit, Laboratory of Viral Diseases, NIAID, NIH, Bethesda, MD, United States
| | - Patrick T. Dolan
- Quantitative Virology and Evolution Unit, Laboratory of Viral Diseases, NIAID, NIH, Bethesda, MD, United States
| | - Heather D. Hickman
- Viral Immunity and Pathogenesis Unit, Laboratory of Clinical Immunology and Microbiology, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, MD, United States
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5
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Snelgrove SL, Susanto O, Yeung L, Hall P, Norman MU, Corbett AJ, Kitching AR, Hickey MJ. T-cell receptor αβ + double-negative T cells in the kidney are predominantly extravascular and increase in abundance in response to ischemia-reperfusion injury. Immunol Cell Biol 2023; 101:49-64. [PMID: 36222375 PMCID: PMC10953373 DOI: 10.1111/imcb.12595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 10/10/2022] [Accepted: 10/11/2022] [Indexed: 01/03/2023]
Abstract
T-cell receptor+ CD4- CD8- double-negative (DN) T cells are a population of T cells present in low abundance in blood and lymphoid organs, but enriched in various organs including the kidney. Despite burgeoning interest in these cells, studies examining their abundance in the kidney have reported conflicting results. Here we developed a flow cytometry strategy to clearly segregate DN T cells from other immune cells in the mouse kidney and used it to characterize their phenotype and response in renal ischemia-reperfusion injury (IRI). These experiments revealed that in the healthy kidney, most DN T cells are located within the renal parenchyma and exhibit an effector memory phenotype. In response to IRI, the number of renal DN T cells is unaltered after 24 h, but significantly increased by 72 h. This increase is not related to alterations in proliferation or apoptosis. By contrast, adoptive transfer studies indicate that circulating DN T cells undergo preferential recruitment to the postischemic kidney. Furthermore, DN T cells show the capacity to upregulate CD8, both in vivo following adoptive transfer and in response to ex vivo activation. Together, these findings provide novel insights regarding the phenotype of DN T cells in the kidney, including their predominant extravascular location, and show that increases in their abundance in the kidney following IRI occur in part as a result of increased recruitment from the circulation. Furthermore, the observation that DN T cells can upregulate CD8 in vivo has important implications for detection and characterization of DN T cells in future studies.
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Affiliation(s)
- Sarah L Snelgrove
- Centre for Inflammatory Diseases, Monash University Department of MedicineMonash Medical CentreClaytonVICAustralia
| | - Olivia Susanto
- Centre for Inflammatory Diseases, Monash University Department of MedicineMonash Medical CentreClaytonVICAustralia
| | - Louisa Yeung
- Centre for Inflammatory Diseases, Monash University Department of MedicineMonash Medical CentreClaytonVICAustralia
| | - Pamela Hall
- Centre for Inflammatory Diseases, Monash University Department of MedicineMonash Medical CentreClaytonVICAustralia
| | - M Ursula Norman
- Centre for Inflammatory Diseases, Monash University Department of MedicineMonash Medical CentreClaytonVICAustralia
| | - Alexandra J Corbett
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and ImmunityThe University of MelbourneMelbourneVICAustralia
| | - A Richard Kitching
- Centre for Inflammatory Diseases, Monash University Department of MedicineMonash Medical CentreClaytonVICAustralia
- Departments of Nephrology and Paediatric NephrologyMonash Medical CentreClaytonVICAustralia
| | - Michael J Hickey
- Centre for Inflammatory Diseases, Monash University Department of MedicineMonash Medical CentreClaytonVICAustralia
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6
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Abstract
In the last years, the tumor microenvironment (TME) has emerged as a promising target for therapeutic interventions in cancer. Cancer cells are highly dependent on the TME to growth and evade the immune system. Three major cell subpopulations are facing each other in the TME: cancer cells, immune suppressor cells, and immune effector cells. These interactions are influenced by the tumor stroma which is composed of extracellular matrix, bystander cells, cytokines, and soluble factors. The TME can be very different depending on the tissue where cancer arises as in solid tumors vs blood cancers. Several studies have shown correlations between the clinical outcome and specific patterns of TME immune cell infiltration. In the recent years, a growing body of evidence suggests that unconventional T cells like natural killer T (NKT) cells, mucosal-associated invariant T (MAIT) cells, and γδ T cells are key players in the protumor or antitumor TME commitment in solid tumors and blood cancers. In this review, we will focus on γδ T cells, especially Vγ9Vδ2 T cells, to discuss their peculiarities, pros, and cons as potential targets of therapeutic interventions in blood cancers.
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Affiliation(s)
- Claudia Giannotta
- Laboratorio di Immunologia dei Tumori del Sangue (LITS), Centro Interdipartimentale di Biotecnologie Molecolari “Guido Tarone”, Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università Degli Studi di Torino, Torino, Italy
| | - Federica Autino
- Laboratorio di Immunologia dei Tumori del Sangue (LITS), Centro Interdipartimentale di Biotecnologie Molecolari “Guido Tarone”, Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università Degli Studi di Torino, Torino, Italy
| | - Massimo Massaia
- Laboratorio di Immunologia dei Tumori del Sangue (LITS), Centro Interdipartimentale di Biotecnologie Molecolari “Guido Tarone”, Dipartimento di Biotecnologie Molecolari e Scienze per la Salute, Università Degli Studi di Torino, Torino, Italy
- Struttura Complessa (SC) Ematologia, Azienda Ospedaliera (AO) S. Croce e Carle, Cuneo, Italy
- *Correspondence: Massimo Massaia,
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7
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Björkström NK. Immunobiology of the biliary tract system. J Hepatol 2022; 77:1657-1669. [PMID: 36116989 PMCID: PMC7615184 DOI: 10.1016/j.jhep.2022.08.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 08/09/2022] [Accepted: 08/17/2022] [Indexed: 12/04/2022]
Abstract
The biliary tract is a complex tubular organ system spanning from the liver to the duodenum. It is the site of numerous acute and chronic disorders, many of unknown origin, that are often associated with cancer development and for which there are limited treatment options. Cholangiocytes with proinflammatory capacities line the lumen and specialised types of immune cells reside in close proximity. Recent technological breakthroughs now permit spatiotemporal assessments of immune cells within distinct niches and have increased our understanding of immune cell tissue residency. In this review, a comprehensive overview of emerging knowledge on the immunobiology of the biliary tract system is provided, with a particular emphasis on the role of distinct immune cells in biliary disorders.
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Affiliation(s)
- Niklas K Björkström
- Center for Infectious Medicine, Department of Medicine Huddinge, Karolinska Institutet, Karolinska University Hospital Huddinge, Stockholm, Sweden.
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8
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Singh P, Szaraz‐Szeles M, Mezei Z, Barath S, Hevessy Z. Gender-dependent frequency of unconventional T cells in a healthy adult Caucasian population: A combinational study of invariant NKT cells, γδ T cells, and mucosa-associated invariant T cells. J Leukoc Biol 2022; 112:1155-1165. [PMID: 35587609 PMCID: PMC9790664 DOI: 10.1002/jlb.5a1121-583rr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 04/27/2022] [Indexed: 12/30/2022] Open
Abstract
This study tested the hypothesis of gender bias in frequency of unconventional T cells. Unconventional T cells exist as minor subsets of T cells in peripheral blood. Despite their low number, they play a crucial role in various immune-mediated diseases such as inflammation, autoimmunity, allergy, and cancer. Gender-based frequency of these cells altogether on large number of healthy individuals are unestablished creating hurdles to manifest association with various immune-mediated pathologic conditions. In this study, we used a multicolor flow cytometric panel to identify iNKT cells, γδ T cells, and MAIT cells altogether in the peripheral blood samples of 93 healthy adult males and 109 healthy adult females from the Caucasian population. The results revealed iNKT cell median value (% T cells) in females was higher: 0.114% ranging from 0.011 to 3.84%, than males: 0.076% (p value 0.0292), ranging from 0.007 to 0.816% and found to be negatively correlated with age in females (p value 0.0047). However, γδ T cell median value in males was higher: 2.52% ranging from 0.31 to 16.09%, than females: 1.79% (p value 0.0155), ranging from 0.078 to 12.49% and each gender was negatively correlated with age (male p value 0.0003 and female p value 0.0007). MAIT cell median values were 3.04% ranging from 0.11 to 10.75% in males and 2.67% ranging from 0.2 to 18.36% in females. MAIT cells did not show any statistically significant difference between genders and found to be negatively correlated with age (p value < 0.0001). Our results could be used for further gender-wise investigations of various pathologic conditions such as cancer and their prognosis, autoimmune diseases, allergies, and their pathogenicity.
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Affiliation(s)
- Parvind Singh
- Department of Laboratory Medicine, Faculty of MedicineUniversity of DebrecenDebrecenHungary
| | - Marianna Szaraz‐Szeles
- Department of Laboratory Medicine, Faculty of MedicineUniversity of DebrecenDebrecenHungary
| | - Zoltan Mezei
- Department of Laboratory Medicine, Faculty of MedicineUniversity of DebrecenDebrecenHungary
| | - Sandor Barath
- Department of Laboratory Medicine, Faculty of MedicineUniversity of DebrecenDebrecenHungary
| | - Zsuzsanna Hevessy
- Department of Laboratory Medicine, Faculty of MedicineUniversity of DebrecenDebrecenHungary
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9
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McLean MR, Wragg KM, Lopez E, Kiazyk SA, Ball TB, Bueti J, Kent SJ, Juno JA, Chung AW. Serological and cellular inflammatory signatures in end-stage kidney disease and latent tuberculosis. Clin Transl Immunology 2021; 10:e1355. [PMID: 34765193 PMCID: PMC8569694 DOI: 10.1002/cti2.1355] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 08/08/2021] [Accepted: 10/21/2021] [Indexed: 12/28/2022] Open
Abstract
Objectives Tuberculosis comorbidity with chronic diseases including diabetes, HIV and chronic kidney disease is of rising concern. In particular, latent tuberculosis infection (LTBI) comorbidity with end‐stage kidney disease (ESKD) is associated with up to 52.5‐fold increased risk of TB reactivation to active tuberculosis infection (ATBI). The immunological mechanisms driving this significant rise in TB reactivation are poorly understood. To contribute to this understanding, we performed a comprehensive assessment of soluble and cellular immune features amongst a unique cohort of patients comorbid with ESKD and LTBI. Methods We assessed the plasma and cellular immune profiles from patients with and without ESKD and/or LTBI (N = 40). We characterised antibody glycosylation, serum complement and cytokine levels. We also assessed classical and non‐classical monocytes and T cells with flow cytometry. Using a systems‐based approach, we identified key immunological features that discriminate between the different disease states. Results Individuals with ESKD exhibited a highly inflammatory plasma profile and an activated cellular state compared with those without ESKD, including higher levels of inflammatory antibody Fc glycosylation structures and activated CX3CR1+ monocytes that correlate with increased inflammatory plasma cytokines. Similar elevated inflammatory signatures were also observed in ESKD+/LTBI+ compared with ESKD−/LTBI+, suggesting that ESKD induces an overwhelming inflammatory immune state. In contrast, no significant inflammatory differences were observed when comparing LTBI+ and LTBI− individuals. Conclusion Our study highlights the highly inflammatory state induced by ESKD. We hypothesise that this inflammatory state could contribute to the increased risk of TB reactivation in ESKD patients.
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Affiliation(s)
- Milla R McLean
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Kathleen M Wragg
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Ester Lopez
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Sandra A Kiazyk
- National HIV and Retrovirology Laboratory National Microbiology Laboratory JC Wilt Infectious Diseases Research Centre Public Health Agency of Canada Winnipeg MB Canada.,Department of Medical Microbiology and Infectious Diseases University of Manitoba Winnipeg MB Canada
| | - Terry Blake Ball
- National HIV and Retrovirology Laboratory National Microbiology Laboratory JC Wilt Infectious Diseases Research Centre Public Health Agency of Canada Winnipeg MB Canada
| | - Joe Bueti
- Department of Internal Medicine University of Manitoba Winnipeg MB Canada.,Section of Nephrology Department of Internal Medicine University of Manitoba MB Canada.,Health Sciences Centre Winnipeg MB Canada
| | - Stephen J Kent
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia.,Australian Research Council Centre for Excellence in Convergent Bio-Nano Science and Technology University of Melbourne Melbourne VIC Australia.,Melbourne Sexual Health Centre and Department of Infectious Diseases Alfred Hospital and Central Clinical School Monash University Melbourne VIC Australia
| | - Jennifer A Juno
- Department of Microbiology and Immunology University of Melbourne at The Peter Doherty Institute for Infection and Immunity Melbourne VIC Australia
| | - Amy W Chung
- 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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Barsac E, de Amat Herbozo C, Gonzalez L, Baranek T, Mallevaey T, Paget C. Regulation and Functions of Protumoral Unconventional T Cells in Solid Tumors. Cancers (Basel) 2021; 13:3578. [PMID: 34298791 DOI: 10.3390/cancers13143578] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/02/2021] [Accepted: 07/12/2021] [Indexed: 01/03/2023] Open
Abstract
The vast majority of studies on T cell biology in tumor immunity have focused on peptide-reactive conventional T cells that are restricted to polymorphic major histocompatibility complex molecules. However, emerging evidence indicated that unconventional T cells, including γδ T cells, natural killer T (NKT) cells and mucosal-associated invariant T (MAIT) cells are also involved in tumor immunity. Unconventional T cells span the innate-adaptive continuum and possess the unique ability to rapidly react to nonpeptide antigens via their conserved T cell receptors (TCRs) and/or to activating cytokines to orchestrate many aspects of the immune response. Since unconventional T cell lineages comprise discrete functional subsets, they can mediate both anti- and protumoral activities. Here, we review the current understanding of the functions and regulatory mechanisms of protumoral unconventional T cell subsets in the tumor environment. We also discuss the therapeutic potential of these deleterious subsets in solid cancers and why further feasibility studies are warranted.
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11
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Mata Forsberg M, Arasa C, van Zwol W, Uzunçayir S, Schönbichler A, Regenthal P, Schelin J, Lindkvist-Petersson K, Björkander S, Sverremark-Ekström E. Activation of human γδ T cells and NK cells by Staphylococcal enterotoxins requires both monocytes and conventional T cells. J Leukoc Biol 2021; 111:597-609. [PMID: 34114693 DOI: 10.1002/jlb.3a1020-630rr] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
Staphylococcal enterotoxins (SE) pose a great threat to human health due to their ability to bypass antigen presentation and activate large amounts of conventional T cells resulting in a cytokine storm potentially leading to toxic shock syndrome. Unconventional T- and NK cells are also activated by SE but the mechanisms remain poorly understood. In this study, the authors aimed to explore the underlying mechanism behind SE-mediated activation of MAIT-, γδ T-, and NK cells in vitro. CBMC or PBMC were stimulated with the toxins SEA, SEH, and TSST-1, and cytokine and cytotoxic responses were analyzed with ELISA and flow cytometry. All toxins induced a broad range of cytokines, perforin and granzyme B, although SEH was not as potent as SEA and TSST-1. SE-induced IFN-γ expression in MAIT-, γδ T-, and NK cells was clearly reduced by neutralization of IL-12, while cytotoxic compounds were not affected at all. Kinetic assays showed that unconventional T cell and NK cell-responses are secondary to the response in conventional T cells. Furthermore, co-cultures of isolated cell populations revealed that the ability of SEA to activate γδ T- and NK cells was fully dependent on the presence of both monocytes and αβ T cells. Lastly, it was found that SE provoked a reduced and delayed cytokine response in infants, particularly within the unconventional T and NK cell populations. This study provides novel insights regarding the activation of unconventional T- and NK cells by SE, which contribute to understanding the vulnerability of young children towards Staphylococcus aureus infections.
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Affiliation(s)
- Manuel Mata Forsberg
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Claudia Arasa
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Willemien van Zwol
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Sibel Uzunçayir
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Anna Schönbichler
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Paulina Regenthal
- Department of Experimental Medical Science, Lund University, Lund, Sweden
| | - Jenny Schelin
- Division of Applied Microbiology, Department of Chemistry, Lund University, Lund, Sweden
| | | | - Sophia Björkander
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Eva Sverremark-Ekström
- Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
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12
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Rahman Qazi K, Jensen GB, van der Heiden M, Björkander S, Marchini G, Jenmalm MC, Abrahamsson T, Sverremark-Ekström E. Extreme prematurity and sepsis strongly influence frequencies and functional characteristics of circulating γδ T and natural killer cells. Clin Transl Immunology 2021; 10:e1294. [PMID: 34136218 PMCID: PMC8192243 DOI: 10.1002/cti2.1294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 02/11/2021] [Accepted: 05/17/2021] [Indexed: 12/19/2022] Open
Abstract
Objectives Extremely low gestational age neonates with extremely low birthweight (ELGAN/ELBW) are highly susceptible to infection. This is linked to their relatively immature immune system which is not yet fully compatible with an extra‐uterine environment. Here, we performed a longitudinal characterisation of unconventional T and natural killer (NK) cells in ELGAN/ELBW during their first months of life. Methods Peripheral blood mononuclear cells were collected from 97 ELGAN/ELBW at 14 and 28 days of life and at a time point corresponding to postmenstrual week 36 + 0. γδ T‐cell, NKT‐cell, mucosa‐associated invariant T‐cell and NK cell frequencies and characteristics were analysed by flow cytometry. As control, cells from 14‐day‐old full‐term (FT) infants were included. Results Extreme prematurity had significant bearing on γδ T‐cell and NK cell frequencies and characteristics. ELGAN/ELBW had significantly higher proportions of γδ T cells that were skewed towards effector and effector memory phenotypes, characteristics that were maintained throughout the study period. Expression of the gut homing receptor CCR9 was also more common in γδ T cells from ELGAN/ELBW. Conversely, NK cell frequencies were markedly lower and skewed towards a cytotoxic phenotype in the ELGAN/ELBW group at 14 days of age. Culture‐proven sepsis with an onset during the first 14 days after birth further manifested these differences in the γδ T‐ and NK cell populations at 14 days of age. Conclusion Prematurity strongly influences the levels of γδ T and NK cells, in particular in cases where sepsis debuts during the first 2 weeks of life.
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Affiliation(s)
- Khaleda Rahman Qazi
- Department of Molecular Biosciences The Wenner-Gren Institute Stockholm University Stockholm Sweden
| | - Georg B Jensen
- Department of Biomedical and Clinical Sciences Linköping University Linköping Sweden.,Department of Paediatrics Linköping University Linköping Sweden
| | - Marieke van der Heiden
- Department of Molecular Biosciences The Wenner-Gren Institute Stockholm University Stockholm Sweden
| | - Sophia Björkander
- Department of Molecular Biosciences The Wenner-Gren Institute Stockholm University Stockholm Sweden
| | - Giovanna Marchini
- Department of Women's and Children's Health Karolinska Institutet Stockholm Sweden
| | - Maria C Jenmalm
- Department of Biomedical and Clinical Sciences Linköping University Linköping Sweden
| | - Thomas Abrahamsson
- Department of Biomedical and Clinical Sciences Linköping University Linköping Sweden.,Department of Paediatrics Linköping University Linköping Sweden
| | - Eva Sverremark-Ekström
- Department of Molecular Biosciences The Wenner-Gren Institute Stockholm University Stockholm Sweden
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13
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Andrlová H, van den Brink MRM, Markey KA. An Unconventional View of T Cell Reconstitution After Allogeneic Hematopoietic Cell Transplantation. Front Oncol 2021; 10:608923. [PMID: 33680931 PMCID: PMC7930482 DOI: 10.3389/fonc.2020.608923] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Accepted: 12/31/2020] [Indexed: 01/02/2023] Open
Abstract
Allogeneic hematopoietic cell transplantation (allo-HCT) is performed as curative-intent therapy for hematologic malignancies and non-malignant hematologic, immunological and metabolic disorders, however, its broader implementation is limited by high rates of transplantation-related complications and a 2-year mortality that approaches 50%. Robust reconstitution of a functioning innate and adaptive immune system is a critical contributor to good long-term patient outcomes, primarily to prevent and overcome post-transplantation infectious complications and ensure adequate graft-versus-leukemia effects. There is increasing evidence that unconventional T cells may have an important immunomodulatory role after allo-HCT, which may be at least partially dependent on the post-transplantation intestinal microbiome. Here we discuss the role of immune reconstitution in allo-HCT outcome, focusing on unconventional T cells, specifically mucosal-associated invariant T (MAIT) cells, γδ (gd) T cells, and invariant NK T (iNKT) cells. We provide an overview of the mechanistic preclinical and associative clinical studies that have been performed. We also discuss the emerging role of the intestinal microbiome with regard to hematopoietic function and overall immune reconstitution.
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Affiliation(s)
- Hana Andrlová
- Department of Immunology, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, United States
| | - Marcel R. M. van den Brink
- Department of Immunology, Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Division of Medicine, Weill Cornell Medical College, New York, NY, United States
| | - Kate A. Markey
- Adult Bone Marrow Transplantation Service, Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, United States
- Division of Medicine, Weill Cornell Medical College, New York, NY, United States
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14
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Sahir F, Mateo JM, Steinhoff M, Siveen KS. Development of a 43 color panel for the characterization of conventional and unconventional T-cell subsets, B cells, NK cells, monocytes, dendritic cells, and innate lymphoid cells using spectral flow cytometry. Cytometry A 2020; 105:404-410. [PMID: 33336868 DOI: 10.1002/cyto.a.24288] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 11/16/2020] [Accepted: 12/04/2020] [Indexed: 01/12/2023]
Abstract
Although many flow cytometers can analyze 30-50 parameters, it is still challenging to develop a 40+ color panel for the phenotyping of immune cells using fluorochrome conjugated antibodies due to limitations in the availability of spectrally unique fluorochromes that can be excited by the commonly used laser lines (UV, Violet, Blue, Green/Yellow-green, and Red). Spectral flowcytometry is capable of differentiating fluorochromes with significant overlap in the emission spectra, enabling the use of spectrally similar fluorochrome pairs such as Brilliant Blue 515 and FITC in a single panel. We have developed a 43 color panel to characterize most of the immune subsets within the peripheral immune system, including conventional T cells, unconventional T cells such as invariant natural killer T cells (iNKT), Gamma delta (γδ) T-cell subsets (TCR Vδ2, TCR Vγ9) and mucosal-associated invariant T cells (MAIT), B-cell subsets, natural killer (NK) cells, plasmacytoid dendritic cells, dendritic cell subsets, hematopoietic progenitor cells, basophils, and innate lymphoid cell (ILC) subsets (CD117, CRTH2). The panel includes surface markers to analyze activation (CD38, HLA-DR, ICOS/CD278), differentiation (CD45RA, CD27, CD28, CD57), expression of cytokine and chemokine receptors (CD25, CD127, CCR10, CCR6, CCR4, CXCR3, CXCR5, CRTH2/CD294), and co-inhibitory molecules and exhaustion (PD-1, CD223/LAG-3, TIGIT), which enables a deep characterization of PBMCs from peripheral blood. Cells were analyzed on a 5-laser Cytek Aurora and data analysis was done using FlowJo. This panel can help to make a thorough interpretation of immune system, specifically when specimen quantity is low. The panel has not been completely optimized but would rather act as a guide toward the development of a workflow for optimized multicolor immunophenotyping panel.
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Affiliation(s)
- Fairooz Sahir
- Flow Cytometry Core Facility, Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Jericha Miles Mateo
- Flow Cytometry Core Facility, Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
| | - Martin Steinhoff
- Department of Dermatology and Venereology, Hamad Medical Corporation, Doha, Qatar
- Dermatology Institute, Hamad Medical Corporation, Doha, Qatar
- Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
- Department of Dermatology, Weill Cornell Medicine-Qatar, Doha, Qatar
- Qatar University, Medical School, Doha, Qatar
- Department of Medicine, Weill Cornell Medical College, New York, New York, USA
| | - Kodappully Sivaraman Siveen
- Flow Cytometry Core Facility, Translational Research Institute, Academic Health System, Hamad Medical Corporation, Doha, Qatar
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15
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Perez C, Gruber I, Arber C. Off-the-Shelf Allogeneic T Cell Therapies for Cancer: Opportunities and Challenges Using Naturally Occurring "Universal" Donor T Cells. Front Immunol 2020; 11:583716. [PMID: 33262761 PMCID: PMC7685996 DOI: 10.3389/fimmu.2020.583716] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 09/07/2020] [Indexed: 12/20/2022] Open
Abstract
Chimeric antigen receptor (CAR) engineered T cell therapies individually prepared for each patient with autologous T cells have recently changed clinical practice in the management of B cell malignancies. Even though CARs used to redirect polyclonal T cells to the tumor are not HLA restricted, CAR T cells are also characterized by their endogenous T cell receptor (TCR) repertoire. Tumor-antigen targeted TCR-based T cell therapies in clinical trials are thus far using “conventional” αβ-TCRs that recognize antigens presented as peptides in the context of the major histocompatibility complex. Thus, both CAR- and TCR-based adoptive T cell therapies (ACTs) are dictated by compatibility of the highly polymorphic HLA molecules between donors and recipients in order to avoid graft-versus-host disease and rejection. The development of third-party healthy donor derived well-characterized off-the-shelf cell therapy products that are readily available and broadly applicable is an intensive area of research. While genome engineering provides the tools to generate “universal” donor cells that can be redirected to cancers, we will focus our attention on third-party off-the-shelf strategies with T cells that are characterized by unique natural features and do not require genome editing for safe administration. Specifically, we will discuss the use of virus-specific T cells, lipid-restricted (CD1) T cells, MR1-restricted T cells, and γδ-TCR T cells. CD1- and MR1-restricted T cells are not HLA-restricted and have the potential to serve as a unique source of universal TCR sequences to be broadly applicable in TCR-based ACT as their targets are presented by the monomorphic CD1 or MR1 molecules on a wide variety of tumor types. For each cell type, we will summarize the stage of preclinical and clinical development and discuss opportunities and challenges to deliver off-the-shelf targeted cellular therapies against cancer.
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Affiliation(s)
- Cynthia Perez
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research Lausanne, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Isabelle Gruber
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research Lausanne, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - Caroline Arber
- Department of Oncology UNIL CHUV, Ludwig Institute for Cancer Research Lausanne, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
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16
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Uldrich AP, Rigau M, Godfrey DI. Immune recognition of phosphoantigen-butyrophilin molecular complexes by γδ T cells. Immunol Rev 2020; 298:74-83. [PMID: 33017054 DOI: 10.1111/imr.12923] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 08/22/2020] [Accepted: 09/02/2020] [Indexed: 12/13/2022]
Abstract
Gamma-delta (γδ) T cells are an important component of the immune system. They are often enriched in non-lymphoid tissues and exhibit diverse functional attributes including rapid activation, cytokine production, proliferation, and acquisition of cytotoxicity following both TCR-dependent and TCR-independent stimulation, but poor capacity for immunological memory. They can detect a broad range of antigens, although typically not peptide-MHC complexes in contrast to alpha-beta (αβ) T cells. In humans, a prominent population of γδ T cells, defined as Vγ9Vδ2+ cells, reacts to small phosphorylated non-peptide "phosphoantigens" (pAgs). The molecular mechanism underpinning this recognition is poorly defined, but is known to involve butyrophilin family members and appears to involve indirect pAg recognition via alterations to butyrophilin molecular complexes. In this review, we discuss recent advances in our understanding of pAg recognition by γδ T cells including the role of butyrophilins and in particular, a newly described role for butyrophilin 2A1.
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Affiliation(s)
- Adam P Uldrich
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Vic., Australia.,Australian Research Council Centre of Excellence for Advanced Molecular Imaging, University of Melbourne, Melbourne, Vic., Australia
| | - Marc Rigau
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Vic., Australia.,Institute of Experimental Immunology at the University Clinic of the Rheinische Friedrich-Wilhelms, University of Bonn, Bonn, Germany
| | - Dale I Godfrey
- Department of Microbiology and Immunology at the Peter Doherty Institute for Infection and Immunity, The University of Melbourne, Parkville, Vic., Australia.,Australian Research Council Centre of Excellence for Advanced Molecular Imaging, University of Melbourne, Melbourne, Vic., Australia
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17
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La Manna MP, Orlando V, Tamburini B, Badami GD, Dieli F, Caccamo N. Harnessing Unconventional T Cells for Immunotherapy of Tuberculosis. Front Immunol 2020; 11:2107. [PMID: 33013888 PMCID: PMC7497315 DOI: 10.3389/fimmu.2020.02107] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Accepted: 08/04/2020] [Indexed: 12/13/2022] Open
Abstract
Even if the incidence of tuberculosis (TB) has been decreasing over the last years, the number of patients with TB is increasing worldwide. The emergence of multidrug-resistant and extensively drug-resistant TB is making control of TB more difficult. Mycobacterium bovis bacillus Calmette–Guérin vaccine fails to prevent pulmonary TB in adults, and there is an urgent need for a vaccine that is also effective in patients with human immunodeficiency virus (HIV) coinfection. Therefore, TB control may benefit on novel therapeutic options beyond antimicrobial treatment. Host-directed immunotherapies could offer therapeutic strategies for patients with drug-resistant TB or with HIV and TB coinfection. In the last years, the use of donor lymphocytes after hematopoietic stem cell transplantation has emerged as a new strategy in the cure of hematologic malignancies in order to induce graft-versus leukemia and graft-versus-infection effects. Moreover, adoptive therapy has proven to be effective in controlling cytomegalovirus and Epstein-Barr virus reactivation in immunocompromised patients with ex vivo expanded viral antigen-specific T cells. Unconventional T cells are a heterogeneous group of T lymphocytes with limited diversity. One of their characteristics is that antigen recognition is not restricted by the classical major histocompatibility complex (MHC). They include CD1 (cluster of differentiation 1)–restricted T cells, MHC-related protein-1–restricted mucosal-associated invariant T (MAIT) cells, MHC class Ib–reactive T cells, and γδ T cells. Because these T cells are genotype-independent, they are also termed “donor unrestricted” T cells. The combined features of low donor diversity and the lack of genetic restriction make these cells suitable candidates for T cell–based immunotherapy of TB.
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Affiliation(s)
- Marco P La Manna
- Central Laboratory of Advanced Diagnosis and Biomedical Research, Palermo, Italy.,Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Valentina Orlando
- Central Laboratory of Advanced Diagnosis and Biomedical Research, Palermo, Italy.,Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Bartolo Tamburini
- Central Laboratory of Advanced Diagnosis and Biomedical Research, Palermo, Italy.,Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Giusto D Badami
- Central Laboratory of Advanced Diagnosis and Biomedical Research, Palermo, Italy.,Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Francesco Dieli
- Central Laboratory of Advanced Diagnosis and Biomedical Research, Palermo, Italy.,Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
| | - Nadia Caccamo
- Central Laboratory of Advanced Diagnosis and Biomedical Research, Palermo, Italy.,Department of Biomedicine, Neurosciences and Advanced Diagnostics, University of Palermo, Palermo, Italy
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18
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Lehmann N, Paret C, El Malki K, Russo A, Neu MA, Wingerter A, Seidmann L, Foersch S, Ziegler N, Roth L, Backes N, Sandhoff R, Faber J. Tumor Lipids of Pediatric Papillary Renal Cell Carcinoma Stimulate Unconventional T Cells. Front Immunol 2020; 11:1819. [PMID: 32973759 PMCID: PMC7468390 DOI: 10.3389/fimmu.2020.01819] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 07/07/2020] [Indexed: 01/25/2023] Open
Abstract
Papillary renal cell carcinoma (PRCC) is a rare entity in children with no established therapy protocols for advanced diseases. Immunotherapy is emerging as an important therapeutic tool for childhood cancer. Tumor cells can be recognized and killed by conventional and unconventional T cells. Unconventional T cells are able to recognize lipid antigens presented via CD1 molecules independently from major histocompatibility complex, which offers new alternatives for cancer immunotherapies. The nature of those lipids is largely unknown and α-galactosylceramide is currently used as a synthetic model antigen. In this work, we analyzed infiltrating lymphocytes of two pediatric PRCCs using flow cytometry, immunohistochemistry and qRT-PCR. Moreover, we analyzed the CD1d expression within both tumors. Tumor lipids of PRCC samples and three normal kidney samples were fractionated and the recognition of tumor own lipid fractions by unconventional T cells was analyzed in an in vitro assay. We identified infiltrating lymphocytes including γδ T cells and iNKT cells, as well as CD1d expression in both samples. One lipid fraction, containing ceramides and monoacylglycerides amongst others, was able to induce the proliferation of iNKT cells isolated from peripheral blood mononuclear cells (PBMCs) of healthy donors and of one matched PRCC patient. Furthermore, CD1d tetramer stainings revealed that a subset of iNKT cells is able to bind lipids being present in fraction 2 via CD1d. We conclude that PRCCs are infiltrated by conventional and unconventional T cells and express CD1d. Moreover, certain lipids, present in pediatric PRCC, are able to stimulate unconventional T cells. Manipulating these lipids and T cells may open new strategies for therapy of pediatric PRCCs.
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Affiliation(s)
- Nadine Lehmann
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Claudia Paret
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Khalifa El Malki
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Alexandra Russo
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Marie Astrid Neu
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Arthur Wingerter
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Larissa Seidmann
- Institute of Pathology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Sebastian Foersch
- Institute of Pathology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Nicole Ziegler
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Lea Roth
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Nora Backes
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Roger Sandhoff
- Lipid Pathobiochemistry, German Cancer Research Center, Heidelberg, Germany
| | - Joerg Faber
- Department of Pediatric Hematology/Oncology, Center for Pediatric and Adolescent Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany.,University Cancer Center (UCT), University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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19
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Abstract
Cancers impose a significant health and economic burden. By harnessing the immune system, current immunotherapies have revolutionized the treatment against human cancers and potentially offer a long-term cure. Among others, innate-like T (iT) cells, including natural killer T cells, are promising candidates for immunotherapies. Unlike conventional T cells, iT cells regulate multiple immune processes and express an invariant T cell receptor that is shared among different individuals. However, the conditions that activate the pro- and antitumor functions of iT cells are partially understood. These gaps in knowledge hamper the use of iT cell in clinics. It might be beneficial to examine the roles of iT cells in an alternative animal model - the amphibian Xenopus whose immune system shares many similarities to that of mammals. Here, we review the iT cell biology in the context of mammalian cancers and discuss the challenges currently found in the field. Next, we introduce the advantages of Xenopus as a model to investigate the role of iT cells and interacting major histocompatibility complex (MHC) class I-like molecules in tumor immunity. In Xenopus, 2 specific iT cell subsets, Vα6 and Vα22 iT cells, recognize and fight tumor cells. Furthermore, our recent data reveal the complex functions of the Xenopus MHC class I-like (XNC) gene XNC10 in tumor immune responses. By utilizing reverse genetics, transgenesis, and MHC tetramers, we have a unique opportunity to uncover the relevance of XNC genes and iT cell in Xenopus tumor immunity.
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Affiliation(s)
- Maureen Banach
- Department of Immunology & Microbiology, University of Colorado School of Medicine , Aurora , CO , USA.,Department of Microbiology & Immunology, University of Rochester Medical Center , Rochester , NY , USA
| | - Jacques Robert
- Department of Microbiology & Immunology, University of Rochester Medical Center , Rochester , NY , USA
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20
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Sebode M, Wigger J, Filpe P, Fischer L, Weidemann S, Krech T, Weiler-Normann C, Peiseler M, Hartl J, Tolosa E, Herkel J, Schramm C, Lohse AW, Arrenberg P. Inflammatory Phenotype of Intrahepatic Sulfatide-Reactive Type II NKT Cells in Humans With Autoimmune Hepatitis. Front Immunol 2019; 10:1065. [PMID: 31191516 PMCID: PMC6546815 DOI: 10.3389/fimmu.2019.01065] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2019] [Accepted: 04/25/2019] [Indexed: 01/06/2023] Open
Abstract
Background: Natural Killer T (NKT) cells are CD1d-restricted innate-like T cells that can rapidly release stored cytokines upon recognition of lipid antigens. In mice, type I NKT cells seem to promote liver inflammation, whereas type II NKT cells seem to restrict hepatitis. Here, we aimed at characterizing the role of human type I and type II NKT in patients with autoimmune hepatitis (AIH). Methods: NKT cells were analyzed by flow cytometry in peripheral blood and liver of AIH patients and control groups. α-galactosylceramide-loaded or sulfatide-loaded tetramers were used to detect type I or II NKT cells, respectively. Hepatic CD1d was stained by in situ-hybridization of liver biopsies. Results and Conclusions: Type II NKT cells were more prevalent in human peripheral blood and liver than type I NKT cells. In AIH patients, the frequency of sulfatide-reactive type II NKT cells was significantly increased in peripheral blood (0.11% of peripheral blood leukocytes) and liver (3.78% of intrahepatic leukocytes) compared to healthy individuals (0.05% and 1.82%) and patients with drug-induced liver injury (0.06% and 2.03%; p < 0.05). Intrahepatic type II NKT cells of AIH patients had a different cytokine profile than healthy subjects with an increased frequency of TNFα (77.8% vs. 59.1%, p < 0.05), decreased IFNγ (32.7% vs. 63.0%, p < 0.05) and a complete lack of IL-4 expressing cells (0% vs. 2.1%, p < 0.05). T cells in portal tracts expressed significantly more CD1d-RNA in AIH livers compared to controls. This study supports that in contrast to their assumed protective role in mice, human intrahepatic, sulfatide-reactive type II NKT cells displayed a proinflammatory cytokine profile in patients with AIH. Infiltrating T cells in portal areas of AIH patients overexpressed CD1d and could thereby activate type II NKT cells.
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Affiliation(s)
- Marcial Sebode
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany
| | - Jennifer Wigger
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Pamela Filpe
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lutz Fischer
- Department of Hepatobiliary Surgery and Transplantation, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sören Weidemann
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Till Krech
- Department of Pathology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christina Weiler-Normann
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany.,Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Moritz Peiseler
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany
| | - Johannes Hartl
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany
| | - Eva Tolosa
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Johannes Herkel
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Schramm
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany.,Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ansgar W Lohse
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,European Reference Network on Hepatological Diseases (ERN RARE-LIVER), Hamburg, Germany
| | - Philomena Arrenberg
- Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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21
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Paget C, Trottein F. Mechanisms of Bacterial Superinfection Post-influenza: A Role for Unconventional T Cells. Front Immunol 2019; 10:336. [PMID: 30881357 PMCID: PMC6405625 DOI: 10.3389/fimmu.2019.00336] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Accepted: 02/08/2019] [Indexed: 12/24/2022] Open
Abstract
Despite the widespread application of vaccination programs and antiviral drug treatments, influenza viruses are still among the most harmful human pathogens. Indeed, influenza results in significant seasonal and pandemic morbidity and mortality. Furthermore, severe bacterial infections can occur in the aftermath of influenza virus infection, and contribute substantially to the excess morbidity and mortality associated with influenza. Here, we review the main features of influenza viruses and current knowledge about the mechanical and immune mechanisms that underlie post-influenza secondary bacterial infections. We present the emerging literature describing the role of "innate-like" unconventional T cells in post-influenza bacterial superinfection. Unconventional T cell populations span the border between the innate and adaptive arms of the immune system, and are prevalent in mucosal tissues (including the airways). They mainly comprise Natural Killer T cells, mucosal-associated invariant T cells and γδ T cells. We provide an overview of the principal functions that these cells play in pulmonary barrier functions and immunity, highlighting their unique ability to sense environmental factors and promote protection against respiratory bacterial infections. We focus on two major opportunistic pathogens involved in superinfections, namely Streptococcus pneumoniae and Staphylococcus aureus. We discuss mechanisms through which influenza viruses alter the antibacterial activity of unconventional T cells. Lastly, we discuss recent fundamental advances and possible therapeutic approaches in which unconventional T cells would be targeted to prevent post-influenza bacterial superinfections.
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Affiliation(s)
- Christophe Paget
- Centre d'Etude des Pathologies Respiratoires, Institut National de la Santé et de la Recherche Médicale U1100, Tours, France.,Faculty of Medicine, Université de Tours, Tours, France
| | - François Trottein
- U1019-UMR 8204-CIIL-Centre d'Infection et d'Immunité de Lille, Université de Lille, Lille, France.,Centre National de la Recherche Scientifique, UMR 8204, Lille, France.,Institut National de la Santé et de la Recherche Médicale U1019, Lille, France.,Centre Hospitalier, Universitaire de Lille, Lille, France.,Institut Pasteur de Lille, Lille, France
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22
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Allaoui R, Hagerling C, Desmond E, Warfvinge CF, Jirström K, Leandersson K. Infiltration of γδ T cells, IL-17+ T cells and FoxP3+ T cells in human breast cancer. Cancer Biomark 2018; 20:395-409. [PMID: 29060923 PMCID: PMC5814667 DOI: 10.3233/cbm-170026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND Tumor-infiltrating lymphocytes (TILs) have a strong prognostic value in various forms of cancers. These data often refer to use of the pan-T cell marker CD3, or the cytotoxic T lymphocyte marker CD8α. However, T cells are a heterogeneous group of cells with a wide array of effector mechanisms ranging from immunosuppression to cytotoxicity. OBJECTIVE In this study we have investigated the prognostic effects of some unconventional T cell subtypes in breast cancer; γδ T cells, IL-17+ T cells and FoxP3+ T cells (Tregs) in relation to the conventional CD3 and CD8α T cell markers. METHODS This was done using immunohistochemistry on a human breast cancer tissue microarray consisting of 498 consecutive cases of primary breast cancer. RESULTS Infiltration of γδ T cells and T cell infiltration in general (CD3), correlated with a good prognosis, while Treg infiltration with a worse. Infiltration of γδ T cells was associated with a significantly improved clinical outcome in all breast cancer subtypes except triple negative tumors. Only infiltration of either CD3+ or CD8α+ cells was independently associated with better prognosis for all breast cancer patients. CONCLUSIONS This study sheds further light on the prognostic impact of various T cell subtypes in breast cancer.
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Affiliation(s)
- Roni Allaoui
- Cancer Immunology, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Catharina Hagerling
- Cancer Immunology, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Eva Desmond
- Cancer Immunology, Department of Translational Medicine, Lund University, Malmö, Sweden
| | - Carl-Fredrik Warfvinge
- Department of Clinical Sciences Lund, Oncology and Pathology, Lund University, Lund, Sweden
| | - Karin Jirström
- Department of Clinical Sciences Lund, Oncology and Pathology, Lund University, Lund, Sweden
| | - Karin Leandersson
- Cancer Immunology, Department of Translational Medicine, Lund University, Malmö, Sweden
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23
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Meermeier EW, Harriff MJ, Karamooz E, Lewinsohn DM. MAIT cells and microbial immunity. Immunol Cell Biol 2018; 96:607-617. [PMID: 29451704 PMCID: PMC6045460 DOI: 10.1111/imcb.12022] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2018] [Revised: 02/07/2018] [Accepted: 02/07/2018] [Indexed: 12/18/2022]
Abstract
Mucosal-associated invariant T (MAIT) cells, the most abundant T-cell subset in humans, are increasingly being recognized for their importance in microbial immunity. MAIT cells accumulate in almost every mucosal tissue examined, including the lung, liver and intestinal tract, where they can be activated through T-cell receptor (TCR) triggering as well as cytokine stimulation in response to a host of microbial products. In this review, we specifically discuss MAIT cell responses to bacterial and fungal infections, with a focus on responses that are both MR1-dependent and -independent, the evidence for diversity in MAIT TCR usage in response to discrete microbial products, protective immunity induced by MAIT cells, and MAIT cell antimicrobial functions in the context of these infections.
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Affiliation(s)
- Erin W Meermeier
- Department of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
- Research and Development, VA Portland Health Care Center, Portland, OR, 97239, USA
| | - Melanie J Harriff
- Department of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
- Research and Development, VA Portland Health Care Center, Portland, OR, 97239, USA
| | - Elham Karamooz
- Department of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
- Research and Development, VA Portland Health Care Center, Portland, OR, 97239, USA
| | - David M Lewinsohn
- Department of Pulmonary and Critical Care Medicine, Oregon Health and Science University, Portland, OR, 97239, USA
- Research and Development, VA Portland Health Care Center, Portland, OR, 97239, USA
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24
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Edholm ES, Banach M, Hyoe Rhoo K, Pavelka MS Jr, Robert J. Distinct MHC class I-like interacting invariant T cell lineage at the forefront of mycobacterial immunity uncovered in Xenopus. Proc Natl Acad Sci U S A 2018; 115:E4023-31. [PMID: 29610296 DOI: 10.1073/pnas.1722129115] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The amphibian Xenopus laevis is to date the only species outside of mammals where a MHC class I-like (MHC-like) restricted innate-like (i) T cell subset (iVα6 T cells) reminiscent of CD1d-restricted iNKT cells has been identified and functionally characterized. This provides an attractive in vivo model to study the biological analogies and differences between mammalian iT cells and the evolutionarily antecedent Xenopus iT cell defense system. Here, we report the identification of a unique iT cell subset (Vα45-Jα1.14) requiring a distinct MHC-like molecule (mhc1b4.L or XNC4) for its development and function. We used two complementary reverse genetic approaches: RNA interference by transgenesis to impair expression of either XNC4 or the Vα45-Jα1.14 rearrangement, and CRISPR/Cas9-mediated disruption of the Jα1.14 gene segment. Both XNC4 deficiency that ablates iVα45T cell development and the direct disruption of the iVα45-Jα1.14 T cell receptor dramatically impairs tadpole resistance to Mycobacterium marinum (Mm) infection. The higher mortality of Mm-infected tadpoles deficient for iVα45T cells correlates with dysregulated expression responses of several immune genes. In contrast, iVα45-Jα1.14-deficient tadpoles remain fully competent against infection by the ranavirus FV3, which indicates a specialization of this unique iT cell subset toward mycobacterial rather than viral pathogens that involve iVα6 T cells. These data suggest that amphibians, which are evolutionarily separated from mammals by more than 350 My, have independently diversified a prominent and convergent immune surveillance system based on MHC-like interacting innate-like T cells.
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25
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Tan CTY, Wistuba-Hamprecht K, Xu W, Nyunt MSZ, Vasudev A, Lee BTK, Pawelec G, Puan KJ, Rotzschke O, Ng TP, Larbi A. Vδ2+ and α/ß T cells show divergent trajectories during human aging. Oncotarget 2018; 7:44906-44918. [PMID: 27384987 PMCID: PMC5216693 DOI: 10.18632/oncotarget.10096] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 05/29/2016] [Indexed: 12/21/2022] Open
Abstract
Chronological aging and a variety of stressors are driving forces towards immunosenescence. While much attention was paid to the main T cell component, α/β T cells, few studies concentrate on the impact of age on γ/δ T cells' characteristics. The latter are important players of adaptive immunity but also have features associated with innate immunity. Vδ2+ are the main component of γ/δ while Vδ1+ T cells expand upon Cytomegalovirus (CMV) infection and with age. The Vδ2+ T cells are not influenced by persistent infections but do contribute to immunosurveillance against bacterial pathogens. Here, we focus on Vδ2+ T cells and report that their composition and functionality is not altered in older adults. We have performed a side-by-side comparison of α/β and Vδ2 cells by using two robust markers of T cell replicative history and cell differentiation (CD28 and CD27), and cytokine secretion (IFN-γ and TNF-α). Significant differences in Vδ2 versus α/β homeostasis, as well as phenotypic and functional changes emerged. However, the data strongly suggest a sustained functionality of the Vδ2 population with age, independently of the challenge. This suggests differential trajectories towards immunosenescence in α/β and Vδ2+ T cells, most likely explained by their intrinsic functions.
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Affiliation(s)
- Crystal Tze Ying Tan
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Kilian Wistuba-Hamprecht
- Department of Internal Medicine II, Centre for Medical Research, University Medical Center, Tübingen, Germany.,Department of Dermatology, University Medical Center, Tübingen, Germany
| | - Weili Xu
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore
| | - Ma Schwe Zin Nyunt
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Anusha Vasudev
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Bernett Teck Kwong Lee
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Graham Pawelec
- Department of Internal Medicine II, Centre for Medical Research, University Medical Center, Tübingen, Germany
| | - Kia Joo Puan
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Olaf Rotzschke
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore
| | - Tze Pin Ng
- Gerontology Research Programme, Department of Psychological Medicine, National University Health System, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Anis Larbi
- Singapore Immunology Network (SIgN), Agency for Science Technology and Research (A*STAR), Biopolis, Singapore.,School of Biological Sciences, Nanyang Technological University, Singapore.,Department of Microbiology, National University of Singapore, Singapore
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26
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Busch M, Herzmann C, Kallert S, Zimmermann A, Höfer C, Mayer D, Zenk SF, Muche R, Lange C, Bloom BR, Modlin RL, Stenger S. Lipoarabinomannan-Responsive Polycytotoxic T Cells Are Associated with Protection in Human Tuberculosis. Am J Respir Crit Care Med 2017; 194:345-55. [PMID: 26882070 DOI: 10.1164/rccm.201509-1746oc] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
RATIONALE The development of host-targeted, prophylactic, and therapeutic interventions against tuberculosis requires a better understanding of the immune mechanisms that determine the outcome of infection with Mycobacterium tuberculosis. OBJECTIVES To identify T-cell-dependent mechanisms that are protective in tuberculosis. METHODS Multicolor flow cytometry, cell sorting and growth inhibition assays were employed to compare the frequency, phenotype and function of T lymphocytes from bronchoalveolar lavage or the peripheral blood. MEASUREMENTS AND MAIN RESULTS At two independent study sites, bronchoalveolar lavage cells from donors with latent tuberculosis infection limited the growth of virulent Mycobacterium tuberculosis more efficiently than those in patients who developed disease. Unconventional, glycolipid-responsive T cells contributed to reduced mycobacterial growth because antibodies to CD1b inhibited this effect by 55%. Lipoarabinomannan was the most potent mycobacterial lipid antigen (activation of 1.3% T lymphocytes) and activated CD1b-restricted T cells that limited bacterial growth. A subset of IFN-γ-producing lipoarabinomannan-responsive T cells coexpressed the cytotoxic molecules perforin, granulysin, and granzyme B, which we termed polycytotoxic T cells. Taking advantage of two well-defined cohorts of subjects latently infected with Mycobacterium tuberculosis or patients who developed active disease after infection, we found a correlation between the frequency of polycytotoxic T cells and the ability to control infection (latent tuberculosis infection, 62%; posttuberculosis patients, 26%). CONCLUSIONS Our data define an unconventional CD8(+) T-cell subset (polycytotoxic T cells) that is based on antigen recognition and function. The results link clinical and mechanistic evidence that glycolipid-responsive, polycytotoxic T cells contribute to protection against tuberculosis.
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Affiliation(s)
- Martin Busch
- 1 Institute for Medical Microbiology and Hygiene, University Hospital Ulm, Ulm, Germany
| | - Christian Herzmann
- 2 Division of Clinical Infectious Diseases, German Center for Infection Research, Borstel, Germany
| | - Stephanie Kallert
- 1 Institute for Medical Microbiology and Hygiene, University Hospital Ulm, Ulm, Germany
| | - Andreas Zimmermann
- 1 Institute for Medical Microbiology and Hygiene, University Hospital Ulm, Ulm, Germany
| | - Christoph Höfer
- 1 Institute for Medical Microbiology and Hygiene, University Hospital Ulm, Ulm, Germany
| | - Daniel Mayer
- 1 Institute for Medical Microbiology and Hygiene, University Hospital Ulm, Ulm, Germany
| | - Sebastian F Zenk
- 1 Institute for Medical Microbiology and Hygiene, University Hospital Ulm, Ulm, Germany
| | - Rainer Muche
- 3 Institute for Epidemiology and Medical Biometry, Ulm University, Ulm, Germany
| | - Christoph Lange
- 2 Division of Clinical Infectious Diseases, German Center for Infection Research, Borstel, Germany
| | - Barry R Bloom
- 4 Harvard School of Public Health, Boston, Massachusetts; and
| | - Robert L Modlin
- 5 Division of Dermatology, Department of Medicine, University of California, Los Angeles, Los Angeles, California
| | - Steffen Stenger
- 1 Institute for Medical Microbiology and Hygiene, University Hospital Ulm, Ulm, Germany
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27
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Moens L, Schaballie H, Bosch B, Voet A, Bossuyt X, Casanova JL, Boisson-Dupuis S, Tangye SG, Meyts I. AD Hyper-IgE Syndrome Due to a Novel Loss-of-Function Mutation in STAT3: a Diagnostic Pursuit Won by Clinical Acuity. J Clin Immunol 2016; 37:12-17. [PMID: 27844301 DOI: 10.1007/s10875-016-0351-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 10/31/2016] [Indexed: 12/15/2022]
Affiliation(s)
- Leen Moens
- Laboratory Medicine, Experimental Laboratory Immunology, Department of Laboratory Medicine, University Hospitals Leuven and KU Leuven, Leuven, Belgium
| | - Heidi Schaballie
- Department of Immunology and Microbiology, Childhood Immunology, University Hospitals Leuven and KU Leuven, Leuven, Belgium.,Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
| | - Barbara Bosch
- Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium.,St. Giles Laboratory of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA
| | - Arnout Voet
- Department of Biochemistry, Laboratory of Biomolecular Modelling and Design, KU Leuven, Leuven, Belgium
| | - Xavier Bossuyt
- Laboratory Medicine, Experimental Laboratory Immunology, Department of Laboratory Medicine, University Hospitals Leuven and KU Leuven, Leuven, Belgium
| | - Jean-Laurent Casanova
- St. Giles Laboratory of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA.,The Howard Hughes Medical Institute, New York, NY, USA.,The Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France.,The Imagine Institute, Paris Descartes University, Paris, France.,The Pediatric Hematology and Immunology Unit, Assistance Publique-Hôpitaux de Paris, Necker Hospital for Sick Children, Paris, France
| | - Stephanie Boisson-Dupuis
- St. Giles Laboratory of Infectious Diseases, Rockefeller Branch, The Rockefeller University, New York, NY, USA.,The Laboratory of Human Genetics of Infectious Diseases, Necker Branch, INSERM U1163, Necker Hospital for Sick Children, Paris, France.,Paris Descartes University, Imagine Institute, Paris, France
| | - Stuart G Tangye
- Immunology Division, Garvan Institute of Medical Research, Darlinghurst, Australia.,St Vincent's Clinical School, University of NSW Australia, Darlinghurst, Australia
| | - Isabelle Meyts
- Department of Immunology and Microbiology, Childhood Immunology, University Hospitals Leuven and KU Leuven, Leuven, Belgium. .,Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium.
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28
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Abstract
During infections, the first reaction of the host against microbial pathogens is carried out by innate immune cells, which recognize conserved structures on pathogens, called pathogen-associated molecular patterns. Afterward, some of these innate cells can phagocytose and destroy the pathogens, secreting cytokines that would modulate the immune response to the challenge. This rapid response is normally followed by the adaptive immunity, more specific and essential for a complete pathogen clearance in many cases. Some innate immune cells, usually named antigen-presenting cells, such as macrophages or dendritic cells, are able to process internalized invaders and present their antigens to lymphocytes, triggering the adaptive immune response. Nevertheless, the traditional boundary of separated roles between innate and adaptive immunity has been blurred by several studies, showing that very specialized populations of lymphocytes (cells of the adaptive immunity) behave similarly to cells of the innate immunity. These “innate-like” lymphocytes include γδ T cells, invariant NKT cells, B-1 cells, mucosal-associated invariant T cells, marginal zone B cells, and innate response activator cells, and together with the newly described innate lymphoid cells are able to rapidly respond to bacterial infections. Strikingly, our recent data suggest that conventional CD4+ T cells, the paradigm of cells of the adaptive immunity, also present innate-like behavior, capturing bacteria in a process called transinfection. Transinfected CD4+ T cells digest internalized bacteria like professional phagocytes and secrete large amounts of proinflammatory cytokines, protecting for further bacterial challenges. In the present review, we will focus on the data showing such innate-like behavior of lymphocytes following bacteria encounter.
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Affiliation(s)
- Aranzazu Cruz-Adalia
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones, Científicas (CNB-CSIC) , Madrid , Spain
| | - Esteban Veiga
- Department of Molecular and Cellular Biology, Centro Nacional de Biotecnología, Consejo Superior de Investigaciones, Científicas (CNB-CSIC) , Madrid , Spain
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29
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López-Sagaseta J, Dulberger CL, Crooks JE, Parks CD, Luoma AM, McFedries A, Van Rhijn I, Saghatelian A, Adams EJ. The molecular basis for Mucosal-Associated Invariant T cell recognition of MR1 proteins. Proc Natl Acad Sci U S A 2013; 110:E1771-8. [PMID: 23613577 DOI: 10.1073/pnas.1222678110] [Citation(s) in RCA: 72] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Mucosal-associated invariant T (MAIT) cells are an evolutionarily conserved αβ T-cell lineage that express a semi-invariant T-cell receptor (TCR) restricted to the MHC related-1 (MR1) protein. MAIT cells are dependent upon MR1 expression and exposure to microbes for their development and stimulation, yet these cells can exhibit microbial-independent stimulation when responding to MR1 from different species. We have used this microbial-independent, cross-species reactivity of MAIT cells to define the molecular basis of MAIT-TCR/MR1 engagement and present here a 2.85 Å complex structure of a human MAIT-TCR bound to bovine MR1. The MR1 binding groove is similar in backbone structure to classical peptide-presenting MHC class I molecules (MHCp), yet is partially occluded by large aromatic residues that form cavities suitable for small ligand presentation. The docking of the MAIT-TCR on MR1 is perpendicular to the MR1 surface and straddles the MR1 α1 and α2 helices, similar to classical αβ TCR engagement of MHCp. However, the MAIT-TCR contacts are dominated by the α-chain, focused on the MR1 α2 helix. TCR β-chain contacts are mostly through the variable CDR3β loop that is positioned proximal to the CDR3α loop directly over the MR1 open groove. The elucidation of the MAIT TCR/MR1 complex structure explains how the semi-invariant MAIT-TCR engages the nonpolymorphic MR1 protein, and sheds light onto ligand discrimination by this cell type. Importantly, this structure also provides a critical link in our understanding of the evolution of αβ T-cell recognition of MHC and MHC-like ligands.
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