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Larson EC, Ellis AL, Rodgers MA, Gubernat AK, Gleim JL, Moriarty RV, Balgeman AJ, de Menezes YT, Ameel CL, Fillmore DJ, Pergalske SM, Juno JA, Maiello P, Chishti HB, Lin PL, Godfrey DI, Kent SJ, Pellicci DG, Ndhlovu LC, O’Connor SL, Scanga CA. Transiently boosting Vγ9+Vδ2+ γδ T cells early in Mtb coinfection of SIV-infected juvenile macaques does not improve Mtb host resistance. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.22.604654. [PMID: 39091843 PMCID: PMC11291075 DOI: 10.1101/2024.07.22.604654] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/04/2024]
Abstract
Children living with HIV have a higher risk of developing tuberculosis (TB), a disease caused by the bacterium Mycobacterium tuberculosis (Mtb). Gamma delta (γδ) T cells in the context of HIV/Mtb coinfection have been understudied in children, despite in vitro evidence suggesting γδ T cells assist with Mtb control. We investigated whether boosting a specific subset of γδ T cells, phosphoantigen-reactive Vγ9+Vδ2+ cells, could improve TB outcome using a nonhuman primate model of pediatric HIV/Mtb coinfection. Juvenile Mauritian cynomolgus macaques (MCM), equivalent to 4-8-year-old children, were infected intravenously (i.v.) with SIV. After 6 months, MCM were coinfected with a low dose of Mtb and then randomized to receive zoledronate (ZOL), a drug that increases phosphoantigen levels, (n=5; i.v.) at 3- and 17- days after Mtb accompanied by recombinant human IL-2 (s.c.) for 5 days following each ZOL injection. A similarly coinfected MCM group (n=5) was injected with saline as a control. Vγ9+Vδ2+ γδ T cell frequencies spiked in the blood, but not airways, of ZOL+IL-2-treated MCM following the first dose, however, were refractory to the second dose. At necropsy eight weeks after Mtb, ZOL+IL-2 treatment did not reduce pathology or bacterial burden. γδ T cell subset frequencies in granulomas did not differ between treatment groups. These data show that transiently boosting peripheral γδ T cells with ZOL+IL-2 soon after Mtb coinfection of SIV-infected MCM did not improve Mtb host defense.
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Affiliation(s)
- Erica C. Larson
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Amy L. Ellis
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Wisconsin, USA
| | - Mark A. Rodgers
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Abigail K. Gubernat
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Janelle L. Gleim
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Ryan V. Moriarty
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Wisconsin, USA
| | - Alexis J. Balgeman
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Wisconsin, USA
| | - Yonne T. de Menezes
- Department of Immunobiology, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Cassaundra L. Ameel
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Daniel J. Fillmore
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Skyler M. Pergalske
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Jennifer A. Juno
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Pauline Maiello
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Harris B. Chishti
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Philana Ling Lin
- Department of Pediatrics, UPMC’s Children’s Hospital of the University of Pittsburgh of UPMC, Pittsburgh, PA
| | - Dale I. Godfrey
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
| | - Stephen J. Kent
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
- Melbourne Sexual Health Centre and Department of Infectious Diseases, Alfred Hospital and Centre Clinical School, Monash University, Melbourne, VIC, Australia
| | - Daniel G. Pellicci
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, VIC, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, VIC, Australia
| | - Lishomwa C. Ndhlovu
- Department of Medicine, Division of Infectious Disease, Weill Cornell Medicine, New York, New York, USA
| | - Shelby L. O’Connor
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Wisconsin, USA
- Wisconsin National Primate Research Center, University of Wisconsin - Madison, Wisconsin, USA
| | - Charles A. Scanga
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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Mitchell AE, Scanlon KM, Flowers EM, Jordan CM, Tibbs EJ, Bukowski A, Gallop D, Carbonetti NH. Age-dependent natural killer cell and interferon γ deficits contribute to severe pertussis in infant mice. J Leukoc Biol 2024; 115:1143-1153. [PMID: 38285898 PMCID: PMC11135619 DOI: 10.1093/jleuko/qiae020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 11/29/2023] [Accepted: 12/26/2023] [Indexed: 01/31/2024] Open
Abstract
Many respiratory infections are selectively injurious to infants, yet the etiology of age-associated susceptibility is unknown. One such bacterial pathogen is Bordetella pertussis. In adult mice, innate interferon γ (IFN-γ) is produced by natural killer (NK) cells and restricts infection to the respiratory tract. In contrast, infant pertussis resembles disease in NK cell- and IFN-γ-deficient adult mice that experience disseminated lethal infection. We hypothesized that infants exhibit age-associated deficits in NK cell frequency, maturation, and responsiveness to B. pertussis, associated with low IFN-γ levels. To delineate mechanisms behind age-dependent susceptibility, we compared infant and adult mouse models of infection. Infection in infant mice resulted in impaired upregulation of IFN-γ and substantial bacterial dissemination. B. pertussis-infected infant mice displayed fewer pulmonary NK cells than adult mice. Furthermore, the NK cells in the infant mouse lungs had an immature phenotype, and the infant lung showed no upregulation of the IFN-γ-inducing cytokine IL-12p70. Adoptive transfer of adult NK cells into infants, or treatment with exogenous IFN-γ, significantly reduced bacterial dissemination. These data indicate that the lack of NK cell-produced IFN-γ significantly contributes to infant fulminant pertussis and could be the basis for other pathogen-induced, age-dependent respiratory diseases.
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Affiliation(s)
- Ashley E Mitchell
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St., Baltimore, MD 21201, United States
| | - Karen M Scanlon
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St., Baltimore, MD 21201, United States
| | - Emily M Flowers
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St., Baltimore, MD 21201, United States
| | - Cassandra M Jordan
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St., Baltimore, MD 21201, United States
| | - Ellis J Tibbs
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St., Baltimore, MD 21201, United States
| | - Alicia Bukowski
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St., Baltimore, MD 21201, United States
| | - Danisha Gallop
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St., Baltimore, MD 21201, United States
| | - Nicholas H Carbonetti
- Department of Microbiology and Immunology, University of Maryland School of Medicine, 685 W. Baltimore St., Baltimore, MD 21201, United States
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Olivieri G, Cotugno N, Palma P. Emerging insights into atypical B cells in pediatric chronic infectious diseases and immune system disorders: T(o)-bet on control of B-cell immune activation. J Allergy Clin Immunol 2024; 153:12-27. [PMID: 37890706 PMCID: PMC10842362 DOI: 10.1016/j.jaci.2023.10.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Revised: 10/13/2023] [Accepted: 10/13/2023] [Indexed: 10/29/2023]
Abstract
Repetitive or persistent cellular stimulation in vivo has been associated with the development of a heterogeneous B-cell population that exhibits a distinctive phenotype and, in addition to classical B-cell markers, often expresses the transcription factor T-bet and myeloid marker CD11c. Research suggests that this atypical population consists of B cells with distinct B-cell receptor specificities capable of binding the antigens responsible for their development. The expansion of this population occurs in the presence of chronic inflammatory conditions and autoimmune diseases where different nomenclatures have been used to describe them. However, as a result of the diverse contexts in which they have been investigated, these cells have remained largely enigmatic, with much ambiguity remaining regarding their phenotype and function in humoral immune response as well as their role in autoimmunity. Atypical B cells have garnered considerable interest because of their ability to produce specific antibodies and/or autoantibodies and because of their association with key disease manifestations. Although they have been widely described in the context of adults, little information is present for children. Therefore, the aim of this narrative review is to describe the characteristics of this population, suggest their function in pediatric immune-related diseases and chronic infections, and explore their potential therapeutic avenues.
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Affiliation(s)
- Giulio Olivieri
- Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; PhD Program in Immunology, Molecular Medicine and Applied Biotechnology, University of Rome Tor Vergata, Rome, Italy
| | - Nicola Cotugno
- Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; Department of Systems Medicine, Molecular Medicine, and Applied Biotechnology, University of Rome Tor Vergata, Rome, Italy
| | - Paolo Palma
- Research Unit of Clinical Immunology and Vaccinology, Bambino Gesù Children's Hospital, IRCCS, Rome, Italy; Department of Systems Medicine, Molecular Medicine, and Applied Biotechnology, University of Rome Tor Vergata, Rome, Italy.
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Chengalroyen MD. Current Perspectives and Challenges of MAIT Cell-Directed Therapy for Tuberculosis Infection. Pathogens 2023; 12:1343. [PMID: 38003807 PMCID: PMC10675005 DOI: 10.3390/pathogens12111343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2023] [Revised: 10/27/2023] [Accepted: 11/08/2023] [Indexed: 11/26/2023] Open
Abstract
Mucosal-associated invariant T (MAIT) cells are a distinct population of non-conventional T cells that have been preserved through evolution and possess properties of both innate and adaptive immune cells. They are activated through the recognition of antigens presented by non-polymorphic MR1 proteins or, alternately, can be stimulated by specific cytokines. These cells are multifaceted and exert robust antimicrobial activity against bacterial and viral infections, direct the immune response through the modulation of other immune cells, and exhibit a specialized tissue homeostasis and repair function. These distinct characteristics have instigated interest in MAIT cell biology for immunotherapy and vaccine development. This review describes the current understanding of MAIT cell activation, their role in infections and diseases with an emphasis on tuberculosis (TB) infection, and perspectives on the future use of MAIT cells in immune-mediated therapy.
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Affiliation(s)
- Melissa D Chengalroyen
- Molecular Mycobacteriology Research Unit, Institute of Infectious Disease and Molecular Medicine, Department of Pathology, University of Cape Town, Cape Town 7700, South Africa
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Thomas AL, Godarova A, Wayman JA, Miraldi ER, Hildeman DA, Chougnet CA. Accumulation of immune-suppressive CD4 + T cells in aging - tempering inflammaging at the expense of immunity. Semin Immunol 2023; 70:101836. [PMID: 37632992 PMCID: PMC10840872 DOI: 10.1016/j.smim.2023.101836] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/21/2023] [Accepted: 08/21/2023] [Indexed: 08/28/2023]
Abstract
The 'immune risk profile' has been shown to predict mortality in the elderly, highlighting the need to better understand age-related immune dysfunction. While aging leads to many defects affecting all arms of the immune system, this review is focused on the accrual of immuno-suppressive CD4 + T cell populations, including FoxP3 + regulatory T cells, and subsets of IL-10-producing T follicular helper cells. New data suggest that such accumulations constitute feedback mechanisms to temper the ongoing progressive low-grade inflammation that develops with age, the so-called "inflammaging", and by doing so, how they have the potential to promote healthier aging. However, they also impair effector immune responses, notably to infections, or vaccines. These studies also reinforce the idea that the aged immune system should not be considered as a poorly functional version of the young one, but more as a dynamic system in which CD4 + T cells, and other immune/non-immune subsets, differentiate, interact with their milieu and function differently than in young hosts. A better understanding of these unique interactions is thus needed to improve effector immune responses in the elderly, while keeping inflammaging under control.
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Affiliation(s)
- Alyssa L Thomas
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45257, USA; Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Alzbeta Godarova
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45257, USA
| | - Joseph A Wayman
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45257, USA
| | - Emily R Miraldi
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45257, USA; Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, USA; Division of Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, 45229, USA
| | - David A Hildeman
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45257, USA; Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, USA.
| | - Claire A Chougnet
- Division of Immunobiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH 45229, USA; Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45257, USA; Immunology Graduate Program, Cincinnati Children's Hospital Medical Center and the University of Cincinnati College of Medicine, Cincinnati, OH, USA.
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6
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Delgado AH, Fluxa R, Perez-Andres M, Diks AM, van Gaans-van den Brink JAM, Barkoff AM, Blanco E, Torres-Valle A, Berkowska MA, Grigore G, van Dongen J.J.M, Orfao A. Automated EuroFlow approach for standardized in-depth dissection of human circulating B-cells and plasma cells. Front Immunol 2023; 14:1268686. [PMID: 37915569 PMCID: PMC10616957 DOI: 10.3389/fimmu.2023.1268686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Accepted: 09/29/2023] [Indexed: 11/03/2023] Open
Abstract
Background Multiparameter flow cytometry (FC) immunophenotyping is a key tool for detailed identification and characterization of human blood leucocytes, including B-lymphocytes and plasma cells (PC). However, currently used conventional data analysis strategies require extensive expertise, are time consuming, and show limited reproducibility. Objective Here, we designed, constructed and validated an automated database-guided gating and identification (AGI) approach for fast and standardized in-depth dissection of B-lymphocyte and PC populations in human blood. Methods For this purpose, 213 FC standard (FCS) datafiles corresponding to umbilical cord and peripheral blood samples from healthy and patient volunteers, stained with the 14-color 18-antibody EuroFlow BIgH-IMM panel, were used. Results The BIgH-IMM antibody panel allowed identification of 117 different B-lymphocyte and PC subsets. Samples from 36 healthy donors were stained and 14 of the datafiles that fulfilled strict inclusion criteria were analysed by an expert flow cytometrist to build the EuroFlow BIgH-IMM database. Data contained in the datafiles was then merged into a reference database that was uploaded in the Infinicyt software (Cytognos, Salamanca, Spain). Subsequently, we compared the results of manual gating (MG) with the performance of two classification algorithms -hierarchical algorithm vs two-step algorithm- for AGI of the cell populations present in 5 randomly selected FCS datafiles. The hierarchical AGI algorithm showed higher correlation values vs conventional MG (r2 of 0.94 vs. 0.88 for the two-step AGI algorithm) and was further validated in a set of 177 FCS datafiles against conventional expert-based MG. For virtually all identifiable cell populations a highly significant correlation was observed between the two approaches (r2>0.81 for 79% of all B-cell populations identified), with a significantly lower median time of analysis per sample (6 vs. 40 min, p=0.001) for the AGI tool vs. MG, respectively and both intra-sample (median CV of 1.7% vs. 10.4% by MG, p<0.001) and inter-expert (median CV of 3.9% vs. 17.3% by MG by 2 experts, p<0.001) variability. Conclusion Our results show that compared to conventional FC data analysis strategies, the here proposed AGI tool is a faster, more robust, reproducible, and standardized approach for in-depth analysis of B-lymphocyte and PC subsets circulating in human blood.
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Affiliation(s)
- Alejandro H. Delgado
- Cytognos SL, Salamanca, Spain
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (CIC) and Instituto de Biología Molecular y Celular del Cancer (IBMCC), CSIC-University of Salamanca (USAL), Salamanca, Spain
| | | | - Martin Perez-Andres
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (CIC) and Instituto de Biología Molecular y Celular del Cancer (IBMCC), CSIC-University of Salamanca (USAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (USAL) and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
| | - Annieck M. Diks
- Department of Immunology (IMMU), Leiden University Medical Center (LUMC), Leiden, Netherlands
| | | | | | - Elena Blanco
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (CIC) and Instituto de Biología Molecular y Celular del Cancer (IBMCC), CSIC-University of Salamanca (USAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (USAL) and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Alba Torres-Valle
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (CIC) and Instituto de Biología Molecular y Celular del Cancer (IBMCC), CSIC-University of Salamanca (USAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (USAL) and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
| | - Magdalena A. Berkowska
- Department of Immunology (IMMU), Leiden University Medical Center (LUMC), Leiden, Netherlands
| | | | - J .J .M. van Dongen
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (CIC) and Instituto de Biología Molecular y Celular del Cancer (IBMCC), CSIC-University of Salamanca (USAL), Salamanca, Spain
- Department of Immunology (IMMU), Leiden University Medical Center (LUMC), Leiden, Netherlands
| | - Alberto Orfao
- Translational and Clinical Research Program, Centro de Investigación del Cáncer (CIC) and Instituto de Biología Molecular y Celular del Cancer (IBMCC), CSIC-University of Salamanca (USAL), Salamanca, Spain
- Department of Medicine, University of Salamanca (USAL) and Institute of Biomedical Research of Salamanca (IBSAL), Salamanca, Spain
- Biomedical Research Networking Centre Consortium of Oncology (CIBERONC), Instituto de Salud Carlos III, Madrid, Spain
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7
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Wanniang N, Boehm TM, Codreanu-Morel F, Divaret-Chauveau A, Assugeni I, Hilger C, Kuehn A. Immune signatures predicting the clinical outcome of peanut oral immunotherapy: where we stand. FRONTIERS IN ALLERGY 2023; 4:1270344. [PMID: 37849958 PMCID: PMC10577271 DOI: 10.3389/falgy.2023.1270344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/11/2023] [Indexed: 10/19/2023] Open
Abstract
Peanut allergy is a growing health concern that can cause mild to severe anaphylaxis as well as reduced quality of life in patients and their families. Oral immunotherapy is an important therapeutic intervention that aims to reshape the immune system toward a higher threshold dose reactivity and sustained unresponsiveness in some patients. From an immunological point of view, young patients, especially those under 3 years old, seem to have the best chance for therapy success. To date, surrogate markers for therapy duration and response are evasive. We provide a comprehensive overview of the current literature state regarding immune signatures evolving over the course of oral immunotherapy as well as baseline immune conditions prior to the initiation of treatment. Although research comparing clinical and immune traits in the first years of life vs. later stages across different age groups is limited, promising insights are available on immunological endotypes among peanut-allergic patients. The available data call for continued research to fill in gaps in knowledge, possibly in an integrated manner, to design novel precision health approaches for advanced therapeutic interventions in peanut allergy.
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Affiliation(s)
- Naphisabet Wanniang
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Theresa-Maria Boehm
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Françoise Codreanu-Morel
- Department of Allergology and Immunology, Centre Hospitalier de Luxembourg-Kanner Klinik, Luxembourg, Luxembourg
| | - Amandine Divaret-Chauveau
- Pediatric Allergy Department, Children’s Hospital, University of Nancy, Vandœuvre-lès-Nancy, France
- EA3450 DevAH, Faculty of Medecine, University of Lorraine, Vandoeuvre-lès-Nancy, France
| | - Isabela Assugeni
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
- Faculty of Science, Technology and Medicine, University of Luxembourg, Esch-sur-Alzette, Luxembourg
| | - Christiane Hilger
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
| | - Annette Kuehn
- Department of Infection and Immunity, Luxembourg Institute of Health, Esch-sur-Alzette, Luxembourg
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8
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Baird S, Ashley CL, Marsh‐Wakefield F, Alca S, Ashhurst TM, Ferguson AL, Lukeman H, Counoupas C, Post JJ, Konecny P, Bartlett A, Martinello M, Bull RA, Lloyd A, Grey A, Hutchings O, Palendira U, Britton WJ, Steain M, Triccas JA. A unique cytotoxic CD4 + T cell-signature defines critical COVID-19. Clin Transl Immunology 2023; 12:e1463. [PMID: 37645435 PMCID: PMC10461786 DOI: 10.1002/cti2.1463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 06/04/2023] [Accepted: 08/11/2023] [Indexed: 08/31/2023] Open
Abstract
Objectives SARS-CoV-2 infection causes a spectrum of clinical disease presentation, ranging from asymptomatic to fatal. While neutralising antibody (NAb) responses correlate with protection against symptomatic and severe infection, the contribution of the T-cell response to disease resolution or progression is still unclear. As newly emerging variants of concern have the capacity to partially escape NAb responses, defining the contribution of individual T-cell subsets to disease outcome is imperative to inform the development of next-generation COVID-19 vaccines. Methods Immunophenotyping of T-cell responses in unvaccinated individuals was performed, representing the full spectrum of COVID-19 clinical presentation. Computational and manual analyses were used to identify T-cell populations associated with distinct disease states. Results Critical SARS-CoV-2 infection was characterised by an increase in activated and cytotoxic CD4+ lymphocytes (CTL). These CD4+ CTLs were largely absent in asymptomatic to severe disease states. In contrast, non-critical COVID-19 was associated with high frequencies of naïve T cells and lack of activation marker expression. Conclusion Highly activated and cytotoxic CD4+ T-cell responses may contribute to cell-mediated host tissue damage and progression of COVID-19. Induction of these potentially detrimental T-cell responses should be considered when developing and implementing effective COVID-19 control strategies.
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Affiliation(s)
- Sarah Baird
- Sydney Infectious Diseases Institute, Faculty of Medicine and HealthThe University of SydneyNSWCamperdownAustralia
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
| | - Caroline L Ashley
- Sydney Infectious Diseases Institute, Faculty of Medicine and HealthThe University of SydneyNSWCamperdownAustralia
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
| | - Felix Marsh‐Wakefield
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
- Liver Injury and Cancer ProgramCentenary InstituteCamperdownNSWAustralia
- Human Cancer and Viral Immunology LaboratoryThe University of SydneyCamperdownNSWAustralia
| | - Sibel Alca
- Sydney Infectious Diseases Institute, Faculty of Medicine and HealthThe University of SydneyNSWCamperdownAustralia
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
| | - Thomas M Ashhurst
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
- Sydney Cytometry Core Research FacilityCharles Perkins Centre, Centenary Institute and The University of SydneyCamperdownNSWAustralia
| | - Angela L Ferguson
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
- Liver Injury and Cancer ProgramCentenary InstituteCamperdownNSWAustralia
| | - Hannah Lukeman
- Sydney Infectious Diseases Institute, Faculty of Medicine and HealthThe University of SydneyNSWCamperdownAustralia
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
| | - Claudio Counoupas
- Sydney Infectious Diseases Institute, Faculty of Medicine and HealthThe University of SydneyNSWCamperdownAustralia
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
- Tuberculosis Research ProgramCentenary InstituteSydneyNSWAustralia
| | - Jeffrey J Post
- Prince of Wales Clinical SchoolUNSWSydneyNSWAustralia
- School of Clinical Medicine, Medicine & HealthUNSWSydneyNSWAustralia
| | - Pamela Konecny
- Prince of Wales Clinical SchoolUNSWSydneyNSWAustralia
- St George HospitalSydneyNSWAustralia
| | - Adam Bartlett
- The Kirby Institute, UNSWSydneyNSWAustralia
- School of Biomedical Sciences, Medicine & HealthUNSWSydneyNSWAustralia
- Sydney Children's HospitalSydneyNSWAustralia
| | | | - Rowena A Bull
- The Kirby Institute, UNSWSydneyNSWAustralia
- School of Biomedical Sciences, Medicine & HealthUNSWSydneyNSWAustralia
| | - Andrew Lloyd
- The Kirby Institute, UNSWSydneyNSWAustralia
- School of Biomedical Sciences, Medicine & HealthUNSWSydneyNSWAustralia
| | - Alice Grey
- RPA Virtual Hospital, Sydney Local Health DistrictSydneyNSWAustralia
| | - Owen Hutchings
- RPA Virtual Hospital, Sydney Local Health DistrictSydneyNSWAustralia
| | - Umaimainthan Palendira
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
- Liver Injury and Cancer ProgramCentenary InstituteCamperdownNSWAustralia
| | - Warwick J Britton
- Tuberculosis Research ProgramCentenary InstituteSydneyNSWAustralia
- Department of Clinical ImmunologyRoyal Prince Alfred HospitalCamperdownNSWAustralia
| | - Megan Steain
- Sydney Infectious Diseases Institute, Faculty of Medicine and HealthThe University of SydneyNSWCamperdownAustralia
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
| | - James A Triccas
- Sydney Infectious Diseases Institute, Faculty of Medicine and HealthThe University of SydneyNSWCamperdownAustralia
- School of Medical Sciences and Charles Perkins CentreThe University of SydneyCamperdownNSWAustralia
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9
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Hurst JH, Mohan AA, Dalapati T, George IA, Aquino JN, Lugo DJ, Pfeiffer TS, Rodriguez J, Rotta AT, Turner NA, Burke TW, McClain MT, Henao R, DeMarco CT, Louzao R, Denny TN, Walsh KM, Xu Z, Mejias A, Ramilo O, Woods CW, Kelly MS. Differential host responses within the upper respiratory tract and peripheral blood of children and adults with SARS-CoV-2 infection. MEDRXIV : THE PREPRINT SERVER FOR HEALTH SCIENCES 2023:2023.07.31.23293337. [PMID: 37577568 PMCID: PMC10418569 DOI: 10.1101/2023.07.31.23293337] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Age is among the strongest risk factors for severe outcomes from SARS-CoV-2 infection. We sought to evaluate associations between age and both mucosal and systemic host responses to SARS-CoV-2 infection. We profiled the upper respiratory tract (URT) and peripheral blood transcriptomes of 201 participants (age range of 1 week to 83 years), including 137 non-hospitalized individuals with mild SARS-CoV-2 infection and 64 uninfected individuals. Among uninfected children and adolescents, young age was associated with upregulation of innate and adaptive immune pathways within the URT, suggesting that young children are primed to mount robust mucosal immune responses to exogeneous respiratory pathogens. SARS-CoV-2 infection was associated with broad induction of innate and adaptive immune responses within the URT of children and adolescents. Peripheral blood responses among SARS-CoV-2-infected children and adolescents were dominated by interferon pathways, while upregulation of myeloid activation, inflammatory, and coagulation pathways was observed only in adults. Systemic symptoms among SARS-CoV-2-infected subjects were associated with blunted innate and adaptive immune responses in the URT and upregulation of many of these same pathways within peripheral blood. Finally, within individuals, robust URT immune responses were correlated with decreased peripheral immune activation, suggesting that effective immune responses in the URT may promote local viral control and limit systemic immune activation and symptoms. These findings demonstrate that there are differences in immune responses to SARS-CoV-2 across the lifespan, including between young children and adolescents, and suggest that these varied host responses contribute to observed differences in the clinical presentation of SARS-CoV-2 infection by age. One Sentence Summary Age is associated with distinct upper respiratory and peripheral blood transcriptional responses among children and adults with SARS-CoV-2 infection.
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10
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Perriman L, Tavakolinia N, Jalali S, Li S, Hickey PF, Amann-Zalcenstein D, Ho WWH, Baldwin TM, Piers AT, Konstantinov IE, Anderson J, Stanley EG, Licciardi PV, Kannourakis G, Naik SH, Koay HF, Mackay LK, Berzins SP, Pellicci DG. A three-stage developmental pathway for human Vγ9Vδ2 T cells within the postnatal thymus. Sci Immunol 2023; 8:eabo4365. [PMID: 37450574 DOI: 10.1126/sciimmunol.abo4365] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Accepted: 06/14/2023] [Indexed: 07/18/2023]
Abstract
Vγ9Vδ2 T cells are the largest population of γδ T cells in adults and can play important roles in providing effective immunity against cancer and infection. Many studies have suggested that peripheral Vγ9Vδ2 T cells are derived from the fetal liver and thymus and that the postnatal thymus plays little role in the development of these cells. More recent evidence suggested that these cells may also develop postnatally in the thymus. Here, we used high-dimensional flow cytometry, transcriptomic analysis, functional assays, and precursor-product experiments to define the development pathway of Vγ9Vδ2 T cells in the postnatal thymus. We identify three distinct stages of development for Vγ9Vδ2 T cells in the postnatal thymus that are defined by the progressive acquisition of functional potential and major changes in the expression of transcription factors, chemokines, and other surface markers. Furthermore, our analysis of donor-matched thymus and blood revealed that the molecular requirements for the development of functional Vγ9Vδ2 T cells are delivered predominantly by the postnatal thymus and not in the periphery. Tbet and Eomes, which are required for IFN-γ and TNFα expression, are up-regulated as Vγ9Vδ2 T cells mature in the thymus, and mature thymic Vγ9Vδ2 T cells rapidly express high levels of these cytokines after stimulation. Similarly, the postnatal thymus programs Vγ9Vδ2 T cells to express the cytolytic molecules, perforin, granzyme A, and granzyme K. This study provides a greater understanding of how Vγ9Vδ2 T cells develop in humans and may lead to opportunities to manipulate these cells to treat human diseases.
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Affiliation(s)
- Louis Perriman
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
- Fiona Elsey Cancer Research Institute, Ballarat, Australia
- Federation University Australia, Ballarat, Australia
| | - Naeimeh Tavakolinia
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia
| | - Sedigheh Jalali
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Shuo Li
- Murdoch Children's Research Institute, Melbourne, Australia
| | - Peter F Hickey
- Advanced Genomics Facility and Single Cell Open Research Endeavour (SCORE), Advanced Technology and Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Daniela Amann-Zalcenstein
- Advanced Genomics Facility and Single Cell Open Research Endeavour (SCORE), Advanced Technology and Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - William Wing Ho Ho
- Advanced Genomics Facility and Single Cell Open Research Endeavour (SCORE), Advanced Technology and Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Tracey M Baldwin
- Advanced Genomics Facility and Single Cell Open Research Endeavour (SCORE), Advanced Technology and Biology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Adam T Piers
- Murdoch Children's Research Institute, Melbourne, Australia
- Melbourne Centre for Cardiovascular Genomics and Regenerative Medicine, Melbourne, Australia
| | - Igor E Konstantinov
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
- Melbourne Centre for Cardiovascular Genomics and Regenerative Medicine, Melbourne, Australia
- Cardiothoracic Surgery, Royal Children's Hospital, Melbourne, Australia
| | - Jeremy Anderson
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Edouard G Stanley
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - Paul V Licciardi
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
| | - George Kannourakis
- Fiona Elsey Cancer Research Institute, Ballarat, Australia
- Federation University Australia, Ballarat, Australia
| | - Shalin H Naik
- Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
- Immunology Division, Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia
| | - Hui-Fern Koay
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia
| | - Laura K Mackay
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia
| | - Stuart P Berzins
- Fiona Elsey Cancer Research Institute, Ballarat, Australia
- Federation University Australia, Ballarat, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia
| | - Daniel G Pellicci
- Murdoch Children's Research Institute, Melbourne, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Australia
- Department of Microbiology and Immunology, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia
- Melbourne Centre for Cardiovascular Genomics and Regenerative Medicine, Melbourne, Australia
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11
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Wang NI, Ninkov M, Haeryfar SMM. Classic costimulatory interactions in MAIT cell responses: from gene expression to immune regulation. Clin Exp Immunol 2023; 213:50-66. [PMID: 37279566 PMCID: PMC10324557 DOI: 10.1093/cei/uxad061] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 05/17/2023] [Accepted: 06/01/2023] [Indexed: 06/08/2023] Open
Abstract
Mucosa-associated invariant T (MAIT) cells are evolutionarily conserved, innate-like T lymphocytes with enormous immunomodulatory potentials. Due to their strategic localization, their invariant T cell receptor (iTCR) specificity for major histocompatibility complex-related protein 1 (MR1) ligands of commensal and pathogenic bacterial origin, and their sensitivity to infection-elicited cytokines, MAIT cells are best known for their antimicrobial characteristics. However, they are thought to also play important parts in the contexts of cancer, autoimmunity, vaccine-induced immunity, and tissue repair. While cognate MR1 ligands and cytokine cues govern MAIT cell maturation, polarization, and peripheral activation, other signal transduction pathways, including those mediated by costimulatory interactions, regulate MAIT cell responses. Activated MAIT cells exhibit cytolytic activities and secrete potent inflammatory cytokines of their own, thus transregulating the biological behaviors of several other cell types, including dendritic cells, macrophages, natural killer cells, conventional T cells, and B cells, with significant implications in health and disease. Therefore, an in-depth understanding of how costimulatory pathways control MAIT cell responses may introduce new targets for optimized MR1/MAIT cell-based interventions. Herein, we compare and contrast MAIT cells and mainstream T cells for their expression of classic costimulatory molecules belonging to the immunoglobulin superfamily and the tumor necrosis factor (TNF)/TNF receptor superfamily, based not only on the available literature but also on our transcriptomic analyses. We discuss how these molecules participate in MAIT cells' development and activities. Finally, we introduce several pressing questions vis-à-vis MAIT cell costimulation and offer new directions for future research in this area.
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Affiliation(s)
- Nicole I Wang
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada
| | - Marina Ninkov
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada
| | - S M Mansour Haeryfar
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada
- Division of Clinical Immunology and Allergy, Department of Medicine, Western University, London, Ontario, Canada
- Division of General Surgery, Department of Surgery, Western University, London, Ontario, Canada
- Lawson Health Research Institute, London, Ontario, Canada
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12
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Larson EC, Ellis AL, Rodgers MA, Gubernat AK, Gleim JL, Moriarty RV, Balgeman AJ, Menezes YK, Ameel CL, Fillmore DJ, Pergalske SM, Juno JA, Maiello P, White AG, Borish HJ, Godfrey DI, Kent SJ, Ndhlovu LC, O’Connor SL, Scanga CA. Host Immunity to Mycobacterium tuberculosis Infection Is Similar in Simian Immunodeficiency Virus (SIV)-Infected, Antiretroviral Therapy-Treated and SIV-Naïve Juvenile Macaques. Infect Immun 2023; 91:e0055822. [PMID: 37039653 PMCID: PMC10187125 DOI: 10.1128/iai.00558-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Accepted: 03/20/2023] [Indexed: 04/12/2023] Open
Abstract
Pre-existing HIV infection increases tuberculosis (TB) risk in children. Antiretroviral therapy (ART) reduces, but does not abolish, this risk in children with HIV. The immunologic mechanisms involved in TB progression in both HIV-naive and HIV-infected children have not been explored. Much of our current understanding is based on human studies in adults and adult animal models. In this study, we sought to model childhood HIV/Mycobacterium tuberculosis (Mtb) coinfection in the setting of ART and characterize T cells during TB progression. Macaques equivalent to 4 to 8 year-old children were intravenously infected with SIVmac239M, treated with ART 3 months later, and coinfected with Mtb 3 months after initiating ART. SIV-naive macaques were similarly infected with Mtb alone. TB pathology and total Mtb burden did not differ between SIV-infected, ART-treated and SIV-naive macaques, although lung Mtb burden was lower in SIV-infected, ART-treated macaques. No major differences in frequencies of CD4+ and CD8+ T cells and unconventional T cell subsets (Vγ9+ γδ T cells, MAIT cells, and NKT cells) in airways were observed between SIV-infected, ART-treated and SIV-naive macaques over the course of Mtb infection, with the exception of CCR5+ CD4+ and CD8+ T cells which were slightly lower. CD4+ and CD8+ T cell frequencies did not differ in the lung granulomas. Immune checkpoint marker levels were similar, although ki-67 levels in CD8+ T cells were elevated. Thus, ART treatment of juvenile macaques, 3 months after SIV infection, resulted in similar progression of Mtb and T cell responses compared to Mtb in SIV-naive macaques.
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Affiliation(s)
- Erica C. Larson
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Amy L. Ellis
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Wisconsin, USA
| | - Mark A. Rodgers
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Abigail K. Gubernat
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Janelle L. Gleim
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Ryan V. Moriarty
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Wisconsin, USA
| | - Alexis J. Balgeman
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Wisconsin, USA
| | - Yonne K. Menezes
- Department of Immunobiology, Federal University of Santa Catarina, Florianópolis, Santa Catarina, Brazil
| | - Cassaundra L. Ameel
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Daniel J. Fillmore
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Skyler M. Pergalske
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Jennifer A. Juno
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Pauline Maiello
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Alexander G. White
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - H. Jacob Borish
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Dale I. Godfrey
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
| | - Stephen J. Kent
- Department of Microbiology and Immunology, The Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Victoria, Australia
- Melbourne Sexual Health Centre and Department of Infectious Diseases, Alfred Hospital and Centre Clinical School, Monash University, Melbourne, Victoria, Australia
| | - Lishomwa C. Ndhlovu
- Department of Medicine, Division of Infectious Disease, Weill Cornell Medicine, New York, New York, USA
| | - Shelby L. O’Connor
- Department of Pathology and Laboratory Medicine, University of Wisconsin - Madison, Wisconsin, USA
- Wisconsin National Primate Research Center, University of Wisconsin - Madison, Wisconsin, USA
| | - Charles A. Scanga
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Center for Vaccine Research, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
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13
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Molecular Markers of Blood Cell Populations Can Help Estimate Aging of the Immune System. Int J Mol Sci 2023; 24:ijms24065708. [PMID: 36982782 PMCID: PMC10055688 DOI: 10.3390/ijms24065708] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Revised: 03/10/2023] [Accepted: 03/14/2023] [Indexed: 03/19/2023] Open
Abstract
Aging of the immune system involves functional changes in individual cell populations, in hematopoietic tissues and at the systemic level. They are mediated by factors produced by circulating cells, niche cells, and at the systemic level. Age-related alterations in the microenvironment of the bone marrow and thymus cause a decrease in the production of naive immune cells and functional immunodeficiencies. Another result of aging and reduced tissue immune surveillance is the accumulation of senescent cells. Some viral infections deplete adaptive immune cells, increasing the risk of autoimmune and immunodeficiency conditions, leading to a general degradation in the specificity and effectiveness of the immune system in old age. During the COVID-19 pandemic, the state-of-the-art application of mass spectrometry, multichannel flow cytometry, and single-cell genetic analysis have provided vast data on the mechanisms of aging of the immune system. These data require systematic analysis and functional verification. In addition, the prediction of age-related complications is a priority task of modern medicine in the context of the increase in the aged population and the risk of premature death during epidemics. In this review, based on the latest data, we discuss the mechanisms of immune aging and highlight some cellular markers as indicators of age-related immune disbalance that increase the risk of senile diseases and infectious complications.
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14
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Beijnen EMS, Odumade OA, Haren SDV. Molecular Determinants of the Early Life Immune Response to COVID-19 Infection and Immunization. Vaccines (Basel) 2023; 11:vaccines11030509. [PMID: 36992093 DOI: 10.3390/vaccines11030509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/11/2023] [Accepted: 02/18/2023] [Indexed: 02/25/2023] Open
Abstract
Clinical manifestations from primary COVID infection in children are generally less severe as compared to adults, and severe pediatric cases occur predominantly in children with underlying medical conditions. However, despite the lower incidence of disease severity, the burden of COVID-19 in children is not negligible. Throughout the course of the pandemic, the case incidence in children has substantially increased, with estimated cumulative rates of SARS-CoV-2 infection and COVID-19 symptomatic illness in children comparable to those in adults. Vaccination is a key approach to enhance immunogenicity and protection against SARS-CoV-2. Although the immune system of children is functionally distinct from that of other age groups, vaccine development specific for the pediatric population has mostly been limited to dose-titration of formulations that were developed primarily for adults. In this review, we summarize the literature pertaining to age-specific differences in COVID-19 pathogenesis and clinical manifestation. In addition, we review molecular distinctions in how the early life immune system responds to infection and vaccination. Finally, we discuss recent advances in development of pediatric COVID-19 vaccines and provide future directions for basic and translational research in this area.
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Affiliation(s)
- Elisabeth M S Beijnen
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children's Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
| | - Oludare A Odumade
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children's Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
- Department of Pediatrics, Division of Medicine Critical Care, Boston Children's Hospital, Boston, MA 02115, USA
| | - Simon D van Haren
- Precision Vaccines Program, Division of Infectious Diseases, Boston Children's Hospital, Boston, MA 02115, USA
- Harvard Medical School, Boston, MA 02115, USA
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