1
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Mehanna N, Pradhan A, Kaur R, Kontopoulos T, Rosati B, Carlson D, Cheung NK, Xu H, Bean J, Hsu K, Le Luduec JB, Vorkas C. Loss of circulating CD8α + NK cells during human Mycobacterium tuberculosis infection. bioRxiv 2024:2024.04.16.588542. [PMID: 38659858 PMCID: PMC11042275 DOI: 10.1101/2024.04.16.588542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
Natural Killer (NK) cells can recognize and kill Mtb-infected cells in vitro, however their role after natural human exposure has not been well-studied. To identify Mtb-responsive NK cell populations, we analyzed the peripheral blood of healthy household contacts of active Tuberculosis (TB) cases and source community donors in an endemic region of Port-au-Prince, Haiti by flow cytometry. We observed higher CD8α expression on NK cells in putative resistors (IGRA-contacts) with a progressive loss of these circulating cells during household-associated latent infection and disease. In vitro assays and CITE-seq analysis of CD8α+ NK cells demonstrated enhanced maturity, cytotoxic gene expression, and response to cytokine stimulation relative to CD8α- NK cells. CD8α+ NK cells also displayed dynamic surface expression dependent on MHC I in contrast to conventional CD8+ T cells. Together, these results support a specialized role for CD8α+ NK cell populations during Mtb infection correlating with disease resistance.
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Affiliation(s)
- Nezar Mehanna
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, 11794
| | - Atul Pradhan
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, 11794
| | - Rimanpreet Kaur
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, 11794
| | - Theodota Kontopoulos
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065
| | - Barbra Rosati
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, 11794
| | - David Carlson
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, 11794
| | - Nai-Kong Cheung
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065
| | - Hong Xu
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065
| | - James Bean
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065
| | - Katherine Hsu
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065
| | - Jean-Benoit Le Luduec
- Sloan Kettering Institute, Memorial Sloan Kettering Cancer Center, New York, NY 10065
| | - Charles Vorkas
- Renaissance School of Medicine at Stony Brook University, Stony Brook, NY, 11794
- Department of Microbiology and Immunology, Stony Brook University, Stony Brook, NY 11794
- Center for Infectious Diseases, Stony Brook University, Stony Brook, NY, 11794
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2
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Rückert T, Romagnani C. Extrinsic and intrinsic drivers of natural killer cell clonality. Immunol Rev 2024. [PMID: 38506411 DOI: 10.1111/imr.13324] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/21/2024]
Abstract
Clonal expansion of antigen-specific lymphocytes is the fundamental mechanism enabling potent adaptive immune responses and the generation of immune memory. Accompanied by pronounced epigenetic remodeling, the massive proliferation of individual cells generates a critical mass of effectors for the control of acute infections, as well as a pool of memory cells protecting against future pathogen encounters. Classically associated with the adaptive immune system, recent work has demonstrated that innate immune memory to human cytomegalovirus (CMV) infection is stably maintained as large clonal expansions of natural killer (NK) cells, raising questions on the mechanisms for clonal selection and expansion in the absence of re-arranged antigen receptors. Here, we discuss clonal NK cell memory in the context of the mechanisms underlying clonal competition of adaptive lymphocytes and propose alternative selection mechanisms that might decide on the clonal success of their innate counterparts. We propose that the integration of external cues with cell-intrinsic sources of heterogeneity, such as variegated receptor expression, transcriptional states, and somatic variants, compose a bottleneck for clonal selection, contributing to the large size of memory NK cell clones.
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Affiliation(s)
- Timo Rückert
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Immunology, Berlin, Germany
| | - Chiara Romagnani
- Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Institute of Medical Immunology, Berlin, Germany
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3
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Hermans L, O'Sullivan TE. No time to die: Epigenetic regulation of natural killer cell survival. Immunol Rev 2024. [PMID: 38426615 DOI: 10.1111/imr.13314] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
NK cells are short-lived innate lymphocytes that can mediate antigen-independent responses to infection and cancer. However, studies from the past two decades have shown that NK cells can acquire transcriptional and epigenetic modifications during inflammation that result in increased survival and lifespan. These findings blur the lines between the innate and adaptive arms of the immune system, and suggest that the homeostatic mechanisms that govern the persistence of innate immune cells are malleable. Indeed, recent studies have shown that NK cells undergo continuous and strictly regulated adaptations controlling their survival during development, tissue residency, and following inflammation. In this review, we summarize our current understanding of the critical factors regulating NK cell survival throughout their lifespan, with a specific emphasis on the epigenetic modifications that regulate the survival of NK cells in various contexts. A precise understanding of the molecular mechanisms that govern NK cell survival will be important to enhance therapies for cancer and infectious diseases.
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Affiliation(s)
- Leen Hermans
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
| | - Timothy E O'Sullivan
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, California, USA
- Molecular Biology Institute, University of California, Los Angeles, California, USA
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4
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Aguilar OA, Fong LK, Lanier LL. ITAM-based receptors in natural killer cells. Immunol Rev 2024. [PMID: 38411263 DOI: 10.1111/imr.13313] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 02/15/2024] [Indexed: 02/28/2024]
Abstract
The ability of cells of the immune system to acquire features such as increased longevity and enhanced secondary responses was long thought to be restricted to cells of the adaptive immune system. Natural killer (NK) cells have challenged this notion by demonstrating that they can also gain adaptive features. This has been observed in both humans and mice during infection with cytomegalovirus (CMV). The generation of adaptive NK cells requires antigen-specific recognition of virally infected cells through stimulatory NK receptors. These receptors lack the ability to signal on their own and rather rely on adaptor molecules that contain ITAMs for driving signals. Here, we highlight our understanding of how these receptors influence the production of adaptive NK cells and propose areas in the field that merit further investigation.
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Affiliation(s)
- Oscar A Aguilar
- Department of Microbiology and Immunology, University of California - San Francisco, San Francisco, California, USA
- Parker Institute for Cancer Immunotherapy, University of California - San Francisco, San Francisco, California, USA
| | - Lam-Kiu Fong
- Department of Pharmaceutical Chemistry, University of California - San Francisco, San Francisco, California, USA
| | - Lewis L Lanier
- Department of Microbiology and Immunology, University of California - San Francisco, San Francisco, California, USA
- Parker Institute for Cancer Immunotherapy, University of California - San Francisco, San Francisco, California, USA
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5
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Torcellan T, Friedrich C, Doucet-Ladevèze R, Ossner T, Solé VV, Riedmann S, Ugur M, Imdahl F, Rosshart SP, Arnold SJ, Gomez de Agüero M, Gagliani N, Flavell RA, Backes S, Kastenmüller W, Gasteiger G. Circulating NK cells establish tissue residency upon acute infection of skin and mediate accelerated effector responses to secondary infection. Immunity 2024; 57:124-140.e7. [PMID: 38157853 PMCID: PMC10783803 DOI: 10.1016/j.immuni.2023.11.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2023] [Revised: 09/25/2023] [Accepted: 11/28/2023] [Indexed: 01/03/2024]
Abstract
Natural killer (NK) cells are present in the circulation and can also be found residing in tissues, and these populations exhibit distinct developmental requirements and are thought to differ in terms of ontogeny. Here, we investigate whether circulating conventional NK (cNK) cells can develop into long-lived tissue-resident NK (trNK) cells following acute infections. We found that viral and bacterial infections of the skin triggered the recruitment of cNK cells and their differentiation into Tcf1hiCD69hi trNK cells that share transcriptional similarity with CD56brightTCF1hi NK cells in human tissues. Skin trNK cells arose from interferon (IFN)-γ-producing effector cells and required restricted expression of the transcriptional regulator Blimp1 to optimize Tcf1-dependent trNK cell formation. Upon secondary infection, trNK cells rapidly gained effector function and mediated an accelerated NK cell response. Thus, cNK cells redistribute and permanently position at sites of previous infection via a mechanism promoting tissue residency that is distinct from Hobit-dependent developmental paths of NK cells and ILC1 seeding tissues during ontogeny.
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Affiliation(s)
- Tommaso Torcellan
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Christin Friedrich
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Rémi Doucet-Ladevèze
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Thomas Ossner
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany; International Max Planck Research School for Immunobiology, Epigenetics, and Metabolism (IMPRS-IEM), 79108 Freiburg, Germany; Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
| | - Virgínia Visaconill Solé
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Sofie Riedmann
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Milas Ugur
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Fabian Imdahl
- Helmholtz Institute for RNA-based Infection Research (HIRI), Helmholtz-Center for Infection Research (HZI), 97078 Würzburg, Germany
| | - Stephan P Rosshart
- Department of Microbiome Research, University Hospital Erlangen, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Erlangen, Germany; Department of Medicine II, Medical Center - University of Freiburg, Faculty of Medicine, Freiburg, Germany
| | - Sebastian J Arnold
- Institute of Experimental and Clinical Pharmacology and Toxicology, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany; Signaling Research Centers BIOSS and CIBSS, University of Freiburg, 79104 Freiburg, Germany
| | - Mercedes Gomez de Agüero
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Nicola Gagliani
- Section of Molecular Immunology und Gastroenterology, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; Hamburg Center for Translational Immunology (HCTI), University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany; Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, 20246 Hamburg, Germany
| | - Richard A Flavell
- Department of Immunobiology, School of Medicine, Yale University, New Haven, CT 06520, USA; Howard Hughes Medical Institute, Yale University School of Medicine, New Haven, CT 06520, USA
| | - Simone Backes
- Institute for Virology and Immunobiology, University of Würzburg, 97078 Würzburg, Germany
| | - Wolfgang Kastenmüller
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Georg Gasteiger
- Würzburg Institute of Systems Immunology, Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany.
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6
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Vetters J, van Helden M, De Nolf C, Rennen S, Cloots E, Van De Velde E, Fayazpour F, Van Moorleghem J, Vanheerswynghels M, Vergote K, Boon L, Vivier E, Lambrecht BN, Janssens S. Canonical IRE1 function needed to sustain vigorous natural killer cell proliferation during viral infection. iScience 2023; 26:108570. [PMID: 38162021 PMCID: PMC10755724 DOI: 10.1016/j.isci.2023.108570] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 10/16/2023] [Accepted: 11/21/2023] [Indexed: 01/03/2024] Open
Abstract
The unfolded protein response (UPR) aims to restore ER homeostasis under conditions of high protein folding load, a function primarily serving secretory cells. Additional, non-canonical UPR functions have recently been unraveled in immune cells. We addressed the function of the inositol-requiring enzyme 1 (IRE1) signaling branch of the UPR in NK cells in homeostasis and microbial challenge. Cell-intrinsic compound deficiency of IRE1 and its downstream transcription factor XBP1 in NKp46+ NK cells, did not affect basal NK cell homeostasis, or overall outcome of viral MCMV infection. However, mixed bone marrow chimeras revealed a competitive advantage in the proliferation of IRE1-sufficient Ly49H+ NK cells after viral infection. CITE-Seq analysis confirmed strong induction of IRE1 early upon infection, concomitant with the activation of a canonical UPR signature. Therefore, we conclude that IRE1/XBP1 activation is required during vigorous NK cell proliferation early upon viral infection, as part of a canonical UPR response.
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Affiliation(s)
- Jessica Vetters
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Mary van Helden
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Laboratory for Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium
- Byondis B.V., Nijmegen, the Netherlands
| | - Clint De Nolf
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Laboratory for Barriers in Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Biomedical Molecular Biology, Ghent University, Ghent, Belgium
| | - Sofie Rennen
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Eva Cloots
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Evelien Van De Velde
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Farzaneh Fayazpour
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
| | - Justine Van Moorleghem
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Laboratory for Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Manon Vanheerswynghels
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Laboratory for Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium
| | - Karl Vergote
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Laboratory for Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium
| | | | - Eric Vivier
- Aix Marseille University, CNRS, INSERM, Centre d’Immunologie de Marseille-Luminy, Marseille, France
- AP-HM, Hôpital de la Timone, Marseille-Immunopôle, Marseille, France
- Innate Pharma Research Laboratories, Innate Pharma, Marseille, France
| | - Bart N. Lambrecht
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
- Laboratory for Immunoregulation and Mucosal Immunology, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Pulmonary Medicine, Erasmus MC, Rotterdam, the Netherlands
| | - Sophie Janssens
- Laboratory for ER Stress and Inflammation, VIB Center for Inflammation Research, Ghent, Belgium
- Department of Internal Medicine and Pediatrics, Ghent University, Ghent, Belgium
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7
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Santosa EK, Sun JC. Cardinal features of immune memory in innate lymphocytes. Nat Immunol 2023; 24:1803-1812. [PMID: 37828377 PMCID: PMC10998651 DOI: 10.1038/s41590-023-01607-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/28/2023] [Indexed: 10/14/2023]
Abstract
The ability of vertebrates to 'remember' previous infections had once been attributed exclusively to adaptive immunity. We now appreciate that innate lymphocytes also possess memory properties akin to those of adaptive immune cells. In this Review, we draw parallels from T cell biology to explore the key features of immune memory in innate lymphocytes, including quantity, quality, and location. We discuss the signals that trigger clonal or clonal-like expansion in innate lymphocytes, and highlight recent studies that shed light on the complex cellular and molecular crosstalk between metabolism, epigenetics, and transcription responsible for differentiating innate lymphocyte responses towards a memory fate. Additionally, we explore emerging evidence that activated innate lymphocytes relocate and establish themselves in specific peripheral tissues during infection, which may facilitate an accelerated response program akin to those of tissue-resident memory T cells.
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Affiliation(s)
- Endi K Santosa
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY, USA
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY, USA.
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8
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Khan AUH, Ali AK, Marr B, Jo D, Ahmadvand S, Fong-McMaster C, Almutairi SM, Wang L, Sad S, Harper ME, Lee SH. The TNFα/TNFR2 axis mediates natural killer cell proliferation by promoting aerobic glycolysis. Cell Mol Immunol 2023; 20:1140-1155. [PMID: 37553427 PMCID: PMC10541863 DOI: 10.1038/s41423-023-01071-4] [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: 12/10/2022] [Revised: 06/29/2023] [Accepted: 07/20/2023] [Indexed: 08/10/2023] Open
Abstract
Natural killer (NK) cells are predominant innate lymphocytes that initiate the early immune response during infection. NK cells undergo a metabolic switch to fuel augmented proliferation and activation following infection. Tumor necrosis factor-alpha (TNFα) is a well-known inflammatory cytokine that enhances NK cell function; however, the mechanism underlying NK cell proliferation in response to TNFα is not well established. Here, we demonstrated that upon infection/inflammation, NK cells upregulate the expression of TNF receptor 2 (TNFR2), which is associated with increased proliferation, metabolic activity, and effector function. Notably, IL-18 can induce TNFR2 expression in NK cells, augmenting their sensitivity toward TNFα. Mechanistically, TNFα-TNFR2 signaling upregulates the expression of CD25 (IL-2Rα) and nutrient transporters in NK cells, leading to a metabolic switch toward aerobic glycolysis. Transcriptomic analysis revealed significantly reduced expression levels of genes involved in cellular metabolism and proliferation in NK cells from TNFR2 KO mice. Accordingly, our data affirmed that genetic ablation of TNFR2 curtails CD25 upregulation and TNFα-induced glycolysis, leading to impaired NK cell proliferation and antiviral function during MCMV infection in vivo. Collectively, our results delineate the crucial role of the TNFα-TNFR2 axis in NK cell proliferation, glycolysis, and effector function.
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Affiliation(s)
- Abrar Ul Haq Khan
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Alaa Kassim Ali
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Bryan Marr
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Donghyeon Jo
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Simin Ahmadvand
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Claire Fong-McMaster
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Saeedah Musaed Almutairi
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Botany and Microbiology Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Lisheng Wang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Subash Sad
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Mary-Ellen Harper
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Seung-Hwan Lee
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada.
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada.
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9
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Santosa EK, Kim H, Rückert T, Le Luduec JB, Abbasi AJ, Wingert CK, Peters L, Frost JN, Hsu KC, Romagnani C, Sun JC. Control of nutrient uptake by IRF4 orchestrates innate immune memory. Nat Immunol 2023; 24:1685-1697. [PMID: 37697097 DOI: 10.1038/s41590-023-01620-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 08/08/2023] [Indexed: 09/13/2023]
Abstract
Natural killer (NK) cells are innate cytotoxic lymphocytes with adaptive immune features, including antigen specificity, clonal expansion and memory. As such, NK cells share many transcriptional and epigenetic programs with their adaptive CD8+ T cell siblings. Various signals ranging from antigen, co-stimulation and proinflammatory cytokines are required for optimal NK cell responses in mice and humans during virus infection; however, the integration of these signals remains unclear. In this study, we identified that the transcription factor IRF4 integrates signals to coordinate the NK cell response during mouse cytomegalovirus infection. Loss of IRF4 was detrimental to the expansion and differentiation of virus-specific NK cells. This defect was partially attributed to the inability of IRF4-deficient NK cells to uptake nutrients required for survival and memory generation. Altogether, these data suggest that IRF4 is a signal integrator that acts as a secondary metabolic checkpoint to orchestrate the adaptive response of NK cells during viral infection.
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Affiliation(s)
- Endi K Santosa
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY, USA
| | - Hyunu Kim
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Timo Rückert
- Innate Immunity, Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), ein Leibniz Institut, Berlin, Germany
| | | | - Aamna J Abbasi
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Claire K Wingert
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Lila Peters
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joe N Frost
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Katharine C Hsu
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - Chiara Romagnani
- Innate Immunity, Deutsches Rheuma-Forschungszentrum Berlin (DRFZ), ein Leibniz Institut, Berlin, Germany
- Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt Universität zu Berlin, Berlin, Germany
- Leibniz-Science Campus Chronic Inflammation, Berlin, Germany
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY, USA.
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10
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Preechanukul A, Kronsteiner B, Saiprom N, Rochaikun K, Moonmueangsan B, Phunpang R, Ottiwet O, Kongphrai Y, Wapee S, Chotivanich K, Morakot C, Janon R, Dunachie SJ, Chantratita N. Identification and function of a novel human memory-like NK cell population expressing CD160 in melioidosis. iScience 2023; 26:107234. [PMID: 37520720 PMCID: PMC10372747 DOI: 10.1016/j.isci.2023.107234] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 06/01/2023] [Accepted: 06/23/2023] [Indexed: 08/01/2023] Open
Abstract
NK cells are endowed with immunological memory to a range of pathogens but the development of NK cell memory in bacterial infections remains elusive. Here, we establish an assay inducing memory-like NK cell response to Burkholderia pseudomallei, the causative agent of the severe bacterial disease called melioidosis, and explore NK cell memory in a melioidosis patient cohort. We show that NK cells require bacteria-primed monocytes to acquire memory-like properties, demonstrated by bacteria-specific responses, features that strongly associate with CD160 expression. Induction of this memory-like NK cell is partly dependent on CD160 and IL-12R. Importantly, CD160 expression identifies memory-like NK cells in a cohort of recovered melioidosis patients with heightened responses maintained at least 3 months post hospital admission and reduced numbers of this cell population independently correlate with recurrent melioidosis. These newly identified memory-like NK cells are a promising target for future vaccine design and for monitoring protection against infection.
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Affiliation(s)
- Anucha Preechanukul
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Barbara Kronsteiner
- Peter Medawar Building for Pathogen Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
- NDM Centre for Global Health Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
| | - Natnaree Saiprom
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kitilak Rochaikun
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Boonthanom Moonmueangsan
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Rungnapa Phunpang
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Orawan Ottiwet
- Department of Medical Technology and Clinical Pathology, Mukdahan Hospital, Mukdahan, Thailand
| | - Yuphin Kongphrai
- Department of Medical Technology and Clinical Pathology, Mukdahan Hospital, Mukdahan, Thailand
| | - Soonthon Wapee
- Department of Medical Technology and Clinical Pathology, Mukdahan Hospital, Mukdahan, Thailand
| | - Kesinee Chotivanich
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
| | - Chumpol Morakot
- Department of Medicine, Mukdahan Hospital, Mukdahan, Thailand
| | - Rachan Janon
- Department of Medicine, Mukdahan Hospital, Mukdahan, Thailand
| | - Susanna J. Dunachie
- Peter Medawar Building for Pathogen Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
- NDM Centre for Global Health Research, Nuffield Department of Clinical Medicine, University of Oxford, Oxford, UK
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
- Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Narisara Chantratita
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
- Mahidol-Oxford Tropical Medicine Research Unit, Mahidol University, Bangkok, Thailand
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11
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Zhou Z, Liu X, Zhang X, Wen S, Hua H, Wang Z, Xu Z, Lu Y, Wang F. Impact of Early Natural Killer Cell Reconstitution on the Outcomes of T Cell-Replete Allogeneic Hematopoietic Stem Cell Transplantation. J Inflamm Res 2023; 16:2993-3008. [PMID: 37489148 PMCID: PMC10363384 DOI: 10.2147/jir.s416708] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/04/2023] [Indexed: 07/26/2023] Open
Abstract
Background Early immune reconstitution is crucial to successful outcomes after allogeneic stem cell transplantation (allo-HSCT). However, in T cell-replete HSCT, the impact of natural killer (NK) cells on transplantation outcome and the factors influencing early NK cell reconstitution remain unclear. Methods In this retrospective study, we analyzed 128 patients with hematological malignancies who received the first T cell-replete allo-HSCT between May 2019 and September 2021. After application of a conditioning regimen, prophylaxis for graft versus host disease (GVHD), and engraftment, the patients received prevention and treatment procedures for cytomegalovirus (CMV) reactivation. NK cells, T lymphocytes and B lymphocytes in peripheral blood were collected and analyzed at 30, 60, 90, 135 and 180 days after transplantation to observe immune cell reconstitution. Overall survival (OS), relapse-free survival (RFS), minimal residual disease (MRD), relapse, and non-relapse mortality (NRM) were evaluated. SPSS 25.0 and R version 4.2.1 were used for statistical analysis. Results In patients with rapid NK recovery (NK cell count at 30 days post-HSCT [NK30] >165/μL and 60 days post-HSCT [NK60] >265/μL), we observed lower rates of NRM, CMV reactivation and acute GVHD (aGVHD). Multivariate analysis indicated that a lower NK30 (≤165/μL) was an independent factor associated with inferior OS and RFS. The NK30 and NK60 in patients with CMV reactivation and aGVHD after transplantation were significantly lower than those in patients without these complications. In addition, CD107a expression in NK cells was also significantly lower in patients who experienced aGVHD. Correlation analysis did not find an inhibitory effect of T-lymphocyte subset reconstitution on NK cells in the early stage after transplantation. Conclusion Rapid NK cell reconstitution early after allo-HSCT had protective effects on NRM and survival. Promoting early NK cell reconstitution represents a new approach to improving the outcomes of allo-HSCT.
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Affiliation(s)
- Ziwei Zhou
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
| | - Xuan Liu
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
| | - Xuejun Zhang
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
| | - Shupeng Wen
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
| | - Huan Hua
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
| | - Zhenzhen Wang
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
| | - Zheng Xu
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
| | - Yu Lu
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
| | - Fuxu Wang
- Department of Hematology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Hematology, Shijiazhuang, Hebei050000, People’s Republic of China
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12
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Meng J, Li L, Xu Y, Wei X, Chen D, Chen C, Liu S, Wang Z, Shi G, Wang S, Zhou X, Jiang L. A simple liposome-based bionic bacterium for tumor treatment by re-education of tumor-associated microphages in combination with chemotherapy. Colloids Surf B Biointerfaces 2023; 222:113069. [PMID: 36508889 DOI: 10.1016/j.colsurfb.2022.113069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 11/18/2022] [Accepted: 12/01/2022] [Indexed: 12/12/2022]
Abstract
Re-education of tumor-associated macrophages (TAMs) into M1-like macrophages (Mφ1) has become one of the aims of tumor immunotherapy. Injection of live bacteria has been applied for this purpose; however, an acute innate immune response might be caused in this progress, and therefore a bacteria-based strategy with great security is needed. In this study, the bacterial walls of Staphylococcus aureus were inserted into the bilayer of liposome to construct liposome-based bionic bacteria (Bio-Bac), and doxorubicin (DOX) was encapsulated to form DOX@Bio-Bac. DOX@Bio-Bac re-educated the THP-1-derived TAMs into Mφ1 in vitro, and subsequently inhibited the migration and invasion of CAL27 cells. In a mouse model of hepatocellular carcinoma with lymphatic metastasis, the re-education of TAMs was proved, and an effective inhibition of tumor growth and metastasis in mice was observed. The liposome-based bionic bacteria constructed in this study provide a new strategy for re-education of TAMs, replacing the bacterial therapy reported previously, and a more effective anti-tumor effect can be obtained by combining the chemotherapy drugs with this bionic bacterium.
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13
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Oh BLZ, Chan LWY, Chai LYA. Manipulating NK cellular therapy from cancer to invasive fungal infection: promises and challenges. Front Immunol 2023; 13:1044946. [PMID: 36969979 PMCID: PMC10034767 DOI: 10.3389/fimmu.2022.1044946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 12/09/2022] [Indexed: 01/13/2023] Open
Abstract
The ideal strategy to fight an infection involves both (i) weakening the invading pathogen through conventional antimicrobial therapy, and (ii) strengthening defense through the augmentation of host immunity. This is even more pertinent in the context of invasive fungal infections whereby the majority of patients have altered immunity and are unable to mount an appropriate host response against the pathogen. Natural killer (NK) cells fit the requirement of an efficient, innate executioner of both tumour cells and pathogens – their unique, targeted cell killing mechanism, combined with other arms of the immune system, make them potent effectors. These characteristics, together with their ready availability (given the various sources of extrinsic NK cells available for harvesting), make NK cells an attractive choice as adoptive cellular therapy against fungi in invasive infections. Improved techniques in ex vivo NK cell activation with expansion, and more importantly, recent advances in genetic engineering including state-of-the-art chimeric antigen receptor platform development, have presented an opportune moment to harness this novel therapeutic as a key component of a multipronged strategy against invasive fungal infections.
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Affiliation(s)
- Bernice Ling Zhi Oh
- VIVA-University Children’s Cancer Centre, Khoo-Teck Puat-National University Children’s Medical Institute, National University Hospital, Singapore, Singapore
- Department of Paediatrics, Yong Loo Lin School of Medicine, National University Singapore, Singapore, Singapore
| | - Louis Wei Yong Chan
- Clinician Scientist Academy, National University Health System, Singapore, Singapore
| | - Louis Yi Ann Chai
- Division of Infectious Diseases, Department of Medicine, National University Health System, Singapore, Singapore
- Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
- Synthetic Biology for Clinical and Technological Innovation (SynCTI), National University of Singapore, Singapore, Singapore
- *Correspondence: Louis Yi Ann Chai,
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14
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Grassmann S, Sun JC. Thanks for the NK cell memories. Nat Immunol 2022. [DOI: 10.1038/s41590-022-01336-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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15
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Cronk JM, Dziewulska KH, Puchalski P, Crittenden RB, Hammarskjöld ML, Brown MG. Altered-Self MHC Class I Sensing via Functionally Disparate Paired NK Cell Receptors Counters Murine Cytomegalovirus gp34-Mediated Immune Evasion. J Immunol 2022; 209:1545-1554. [PMID: 36165178 PMCID: PMC9529956 DOI: 10.4049/jimmunol.2200441] [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] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Accepted: 08/01/2022] [Indexed: 01/04/2023]
Abstract
The murine CMV (MCMV) immunoevasin m04/gp34 escorts MHC class I (MHC I) molecules to the surface of infected cells where these complexes bind Ly49 inhibitory receptors (IRs) and prevent NK cell attack. Nonetheless, certain self-MHC I-binding Ly49 activating and inhibitory receptors are able to promote robust NK cell expansion and antiviral immunity during MCMV infection. A basis for MHC I-dependent NK cell sensing of MCMV-infected targets and control of MCMV infection however remains unclear. In this study, we discovered that the Ly49R activation receptor is selectively triggered during MCMV infection on antiviral NK cells licensed by the Ly49G2 IR. Ly49R activating receptor recognition of MCMV-infected targets is dependent on MHC I Dk and MCMV gp34 expression. Remarkably, although Ly49R is critical for Ly49G2-dependent antiviral immunity, blockade of the activation receptor in Ly49G2-deficient mice has no impact on virus control, suggesting that paired Ly49G2 MCMV sensing might enable Ly49R+ NK cells to better engage viral targets. Indeed, MCMV gp34 facilitates Ly49G2 binding to infected cells, and the IR is required to counter gp34-mediated immune evasion. A specific requirement for Ly49G2 in antiviral immunity is further explained by its capacity to license cytokine receptor signaling pathways and enhance Ly49R+ NK cell proliferation during infection. These findings advance our understanding of the molecular basis for functionally disparate self-receptor enhancement of antiviral NK cell immunity.
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Affiliation(s)
- John M Cronk
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, USA
| | - Karolina H Dziewulska
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, USA
- Department of Pathology, University of Virginia, Charlottesville, VA
| | - Patryk Puchalski
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, USA
- Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA; and
| | - Rowena B Crittenden
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, USA
- Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA; and
| | - Marie-Louise Hammarskjöld
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA
| | - Michael G Brown
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, VA;
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, USA
- Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA; and
- Center for Immunity, Inflammation, and Regenerative Medicine, University of Virginia, Charlottesville, VA
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16
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Gao F, Zhou Z, Lin Y, Shu G, Yin G, Zhang T. Biology and Clinical Relevance of HCMV-Associated Adaptive NK Cells. Front Immunol 2022; 13:830396. [PMID: 35464486 PMCID: PMC9022632 DOI: 10.3389/fimmu.2022.830396] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [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: 12/07/2021] [Accepted: 03/04/2022] [Indexed: 11/13/2022] Open
Abstract
Natural killer (NK) cells are an important component of the innate immune system due to their strong ability to kill virally infected or transformed cells without prior exposure to the antigen (Ag). However, the biology of human NK (hNK) cells has largely remained elusive. Recent advances have characterized several novel hNK subsets. Among them, adaptive NK cells demonstrate an intriguing specialized antibody (Ab)-dependent response and several adaptive immune features. Most adaptive NK cells express a higher level of NKG2C but lack an intracellular signaling adaptor, FcϵRIγ (hereafter abbreviated as FcRγ). The specific expression pattern of these genes, with other signature genes, is the result of a specific epigenetic modification. The expansion of adaptive NK cells in vivo has been documented in various viral infections, while the frequency of adaptive NK cells among peripheral blood mononuclear cells correlates with improved prognosis of monoclonal Ab treatment against leukemia. This review summarizes the discovery and signature phenotype of adaptive NK cells. We also discuss the reported association between adaptive NK cells and pathological conditions. Finally, we briefly highlight the application of adaptive NK cells in adoptive cell therapy against cancer.
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Affiliation(s)
- Fei Gao
- Immuno-Oncology Laboratory, Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Zhengwei Zhou
- Immuno-Oncology Laboratory, Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Ying Lin
- Immuno-Oncology Laboratory, Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Guang Shu
- Immuno-Oncology Laboratory, Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Gang Yin
- Immuno-Oncology Laboratory, Department of Pathology, School of Basic Medicine, Central South University, Changsha, China
| | - Tianxiang Zhang
- Department of Immunobiology, Yale University School of Medicine, New Haven, CT, United States
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17
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Jensen IJ, Martin MD, Tripathy SK, Badovinac VP. Novel Mouse Model of Murine Cytomegalovirus-Induced Adaptive NK Cells. Immunohorizons 2022; 6:8-15. [PMID: 35031582 PMCID: PMC9636593 DOI: 10.4049/immunohorizons.2100113] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 12/13/2021] [Indexed: 11/19/2022] Open
Abstract
NK cells are important mediators of viral control with the capacity to form adaptive immune features following infection. However, studies of infection-induced adaptive NK cells require adoptive cell transfer to lower the precursor frequency of "Ag-specific" NK cells, potentially limiting the diversity of the NK cell response. In seeking an unmanipulated model to probe the adaptive NK cells, we interrogated a wide range of Collaborative Cross (CC) inbred mice, inbred mouse strains that exhibit broad genetic diversity across strains. Our assessment identified and validated a putative "ideal" CC strain, CC006, which does not require manipulation to generate and maintain adaptive NK cells. Critically, CC006 mice, in contrast to C57BL/6 mice, are capable of developing enhanced NK cell-mediated protective responses to murine CMV infection following m157-mediated vaccination. This work both furthers our understanding of adaptive NK cells and demonstrates the utility of CC mice in the development and interrogation of immunologic models.
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Affiliation(s)
- Isaac J Jensen
- Department of Microbiology and Immunology, Columbia University Irving Medical Center, New York, NY;
| | | | - Sandeep K Tripathy
- Department of Medicine, Gastroenterology Division, Washington University School of Medicine, St. Louis, MO
| | - Vladimir P Badovinac
- Department of Pathology, University of Iowa, Iowa City, IA; and
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA
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18
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Rückert T, Lareau CA, Mashreghi MF, Ludwig LS, Romagnani C. Clonal expansion and epigenetic inheritance of long-lasting NK cell memory. Nat Immunol 2022; 23:1551-63. [PMID: 36289449 DOI: 10.1038/s41590-022-01327-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/09/2022] [Indexed: 11/08/2022]
Abstract
Clonal expansion of cells with somatically diversified receptors and their long-term maintenance as memory cells is a hallmark of adaptive immunity. Here, we studied pathogen-specific adaptation within the innate immune system, tracking natural killer (NK) cell memory to human cytomegalovirus (HCMV) infection. Leveraging single-cell multiomic maps of ex vivo NK cells and somatic mitochondrial DNA mutations as endogenous barcodes, we reveal substantial clonal expansion of adaptive NK cells in HCMV+ individuals. NK cell clonotypes were characterized by a convergent inflammatory memory signature enriched for AP1 motifs superimposed on a private set of clone-specific accessible chromatin regions. NK cell clones were stably maintained in specific epigenetic states over time, revealing that clonal inheritance of chromatin accessibility shapes the epigenetic memory repertoire. Together, we identify clonal expansion and persistence within the human innate immune system, suggesting that these mechanisms have evolved independent of antigen-receptor diversification.
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19
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Flommersfeld S, Böttcher JP, Ersching J, Flossdorf M, Meiser P, Pachmayr LO, Leube J, Hensel I, Jarosch S, Zhang Q, Chaudhry MZ, Andrae I, Schiemann M, Busch DH, Cicin-Sain L, Sun JC, Gasteiger G, Victora GD, Höfer T, Buchholz VR, Grassmann S. Fate mapping of single NK cells identifies a type 1 innate lymphoid-like lineage that bridges innate and adaptive recognition of viral infection. Immunity 2021; 54:2288-2304.e7. [PMID: 34437840 PMCID: PMC8528403 DOI: 10.1016/j.immuni.2021.08.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 05/21/2021] [Accepted: 08/03/2021] [Indexed: 01/20/2023]
Abstract
Upon viral infection, natural killer (NK) cells expressing certain germline-encoded receptors are selected, expanded, and maintained in an adaptive-like manner. Currently, these are thought to differentiate along a common pathway. However, by fate mapping of single NK cells upon murine cytomegalovirus (MCMV) infection, we identified two distinct NK cell lineages that contributed to adaptive-like responses. One was equivalent to conventional NK (cNK) cells while the other was transcriptionally similar to type 1 innate lymphoid cells (ILC1s). ILC1-like NK cells showed splenic residency and strong cytokine production but also recognized and killed MCMV-infected cells, guided by activating receptor Ly49H. Moreover, they induced clustering of conventional type 1 dendritic cells and facilitated antigen-specific T cell priming early during MCMV infection, which depended on Ly49H and the NK cell-intrinsic expression of transcription factor Batf3. Thereby, ILC1-like NK cells bridge innate and adaptive viral recognition and unite critical features of cNK cells and ILC1s. Adaptive-like NK cell responses to MCMV encompass conventional and ILC1-like lineages ILC1-like NK cells show enhanced cytokine production and splenic residency ILC1-like NK cells show EOMES expression, target-specific cytotoxicity, and clonal expansion ILC1-like NK cells drive cDC1 clustering and CD8+ T cell priming dependent on Ly49H and Batf3
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Affiliation(s)
- Sophie Flommersfeld
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Jan P Böttcher
- Institute of Molecular Immunology and Experimental Oncology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Jonatan Ersching
- Laboratory of Lymphocyte Dynamics, The Rockefeller University, New York, NY 10065, USA
| | - Michael Flossdorf
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Philippa Meiser
- Institute of Molecular Immunology and Experimental Oncology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Ludwig O Pachmayr
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Justin Leube
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Inge Hensel
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Sebastian Jarosch
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Qin Zhang
- Division of Theoretical Systems Biology, German Cancer Research Center (DKFZ), Heidelberg, Germany; BioQuant Center, University of Heidelberg, Heidelberg, Germany
| | | | - Immanuel Andrae
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Matthias Schiemann
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Dirk H Busch
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany; German Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Luka Cicin-Sain
- Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Georg Gasteiger
- Würzburg Institute of Systems Immunology, Würzburg, Germany; Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Gabriel D Victora
- Laboratory of Lymphocyte Dynamics, The Rockefeller University, New York, NY 10065, USA
| | - Thomas Höfer
- Division of Theoretical Systems Biology, German Cancer Research Center (DKFZ), Heidelberg, Germany; BioQuant Center, University of Heidelberg, Heidelberg, Germany
| | - Veit R Buchholz
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany; German Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany.
| | - Simon Grassmann
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany; Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
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20
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Mikelez-Alonso I, Magadán S, González-Fernández Á, Borrego F. Natural killer (NK) cell-based immunotherapies and the many faces of NK cell memory: A look into how nanoparticles enhance NK cell activity. Adv Drug Deliv Rev 2021; 176:113860. [PMID: 34237404 DOI: 10.1016/j.addr.2021.113860] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 06/21/2021] [Accepted: 07/01/2021] [Indexed: 12/16/2022]
Abstract
Natural killer (NK) cells are lymphocytes able to exert potent antitumor and antiviral functions by different means. Besides their classification as innate lymphoid cells (ILCs), NK cells exhibit memory-like and memory responses after cytokine preactivation, viral infections and hapten exposure. Multiple NK cell-based immunotherapies have been developed and are currently being tested, including the possibility to translate the NK cell memory responses into the clinic. Nevertheless, still there is a need to improve these therapies, especially for the treatment of solid tumors, and nanotechnology represents an attractive option to increase NK cell effector functions against transformed cells. In this article, we review the basis of NK cell activity, the diversity of the NK cell memory responses and the current NK cell-based immunotherapies that are being used in the clinic. Furthermore, we take a look into nanotechnology-based strategies targeting NK cells to modulate their responses for effective immunotherapy.
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Affiliation(s)
- Idoia Mikelez-Alonso
- Biocruces Bizkaia Health Research Institute, Immunopathology Group, Barakaldo, Spain; Center for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), Donostia - San Sebastián, Spain
| | - Susana Magadán
- CINBIO, Universidade de Vigo, Immunology Group, Vigo, Spain; Galicia Sur Health Research Institute (IIS-GS), Hospital Alvaro Cunqueiro, Vigo, Spain
| | - África González-Fernández
- CINBIO, Universidade de Vigo, Immunology Group, Vigo, Spain; Galicia Sur Health Research Institute (IIS-GS), Hospital Alvaro Cunqueiro, Vigo, Spain
| | - Francisco Borrego
- Biocruces Bizkaia Health Research Institute, Immunopathology Group, Barakaldo, Spain; Ikerbasque, Basque Foundation for Science, Bilbao, Spain.
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21
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Magadán S, Mikelez-Alonso I, Borrego F, González-Fernández Á. Nanoparticles and trained immunity: Glimpse into the future. Adv Drug Deliv Rev 2021; 175:113821. [PMID: 34087325 DOI: 10.1016/j.addr.2021.05.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2021] [Revised: 05/27/2021] [Accepted: 05/29/2021] [Indexed: 12/17/2022]
Abstract
Emerging evidences show that innate immune cells can display changes in their functional programs after infection or vaccination, which lead to immunomodulation (increased or reduced responsiveness) upon secondary activation to the same stimuli or even to a different one. Innate cells acquire features of immunological memory, nowadays using the new term of "trained immunity" or "innate immune memory", which is different from the specific memory immune response elicited by B and T lymphocytes. The review focused on the concept of trained immunity, mostly on myeloid cells. Special attention is dedicated to the pathogen recognition along the evolution (bacteria, plants, invertebrate and vertebrate animals), and to techniques used to study epigenetic reprogramming and metabolic rewiring. Nanomaterials can be recognized by immune cells offering a very promising way to learn about trained immunity. Nanomaterials could be modified in order to immunomodulate the responses ad hoc. Many therapeutic possibilities are opened, and they should be explored.
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22
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Sheppard S, Santosa EK, Lau CM, Violante S, Giovanelli P, Kim H, Cross JR, Li MO, Sun JC. Lactate dehydrogenase A-dependent aerobic glycolysis promotes natural killer cell anti-viral and anti-tumor function. Cell Rep 2021; 35:109210. [PMID: 34077737 PMCID: PMC8221253 DOI: 10.1016/j.celrep.2021.109210] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 03/03/2021] [Accepted: 05/11/2021] [Indexed: 12/11/2022] Open
Abstract
Natural killer (NK) cells are cytotoxic lymphocytes capable of rapid cytotoxicity, cytokine secretion, and clonal expansion. To sustain such energetically demanding processes, NK cells must increase their metabolic capacity upon activation. However, little is known about the metabolic requirements specific to NK cells in vivo. To gain greater insight, we investigated the role of aerobic glycolysis in NK cell function and demonstrate that their glycolytic rate increases rapidly following viral infection and inflammation, prior to that of CD8+ T cells. NK cell-specific deletion of lactate dehydrogenase A (LDHA) reveals that activated NK cells rely on this enzyme for both effector function and clonal proliferation, with the latter being shared with T cells. As a result, LDHA-deficient NK cells are defective in their anti-viral and anti-tumor protection. These findings suggest that aerobic glycolysis is a hallmark of NK cell activation that is key to their function.
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Affiliation(s)
- Sam Sheppard
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Endi K Santosa
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Immunology and Microbial Pathogenesis Program, Graduate School of Medical Sciences, Weill Cornell Medical College, New York, NY 10065, USA
| | - Colleen M Lau
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Sara Violante
- Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Paolo Giovanelli
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Immunology and Microbial Pathogenesis Program, Graduate School of Medical Sciences, Weill Cornell Medical College, New York, NY 10065, USA
| | - Hyunu Kim
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Justin R Cross
- Donald B. and Catherine C. Marron Cancer Metabolism Center, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Ming O Li
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Immunology and Microbial Pathogenesis Program, Graduate School of Medical Sciences, Weill Cornell Medical College, New York, NY 10065, USA
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; Immunology and Microbial Pathogenesis Program, Graduate School of Medical Sciences, Weill Cornell Medical College, New York, NY 10065, USA.
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23
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Khan AUH, Almutairi SM, Ali AK, Salcedo R, Stewart CA, Wang L, Lee SH. Expression of Nutrient Transporters on NK Cells During Murine Cytomegalovirus Infection Is MyD88-Dependent. Front Immunol 2021; 12:654225. [PMID: 34093543 PMCID: PMC8177011 DOI: 10.3389/fimmu.2021.654225] [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] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 04/06/2021] [Indexed: 12/03/2022] Open
Abstract
Natural killer (NK) cells are the predominant innate lymphocytes that provide early defense against infections. In the inflammatory milieu, NK cells modify their metabolism to support high energy demands required for their proliferation, activation, and functional plasticity. This metabolic reprogramming is usually accompanied by the upregulation of nutrient transporter expression on the cell surface, leading to increased nutrient uptake required for intense proliferation. The interleukin-1 family members of inflammatory cytokines are critical in activating NK cells during infection; however, their underlying mechanism in NK cell metabolism is not fully elucidated. Previously, we have shown that IL-18 upregulates the expression of solute carrier transmembrane proteins and thereby induces a robust metabolic boost in NK cells. Unexpectedly, we found that IL-18 signaling is dispensable during viral infection in vivo, while the upregulation of nutrient transporters is primarily MyD88-dependent. NK cells from Myd88-/- mice displayed significantly reduced surface expression of nutrient receptors and mTOR activity during MCMV infection. We also identified that IL-33, another cytokine employing MyD88 signaling, induces the expression of nutrient transporters but requires a pre-exposure to IL-12. Moreover, signaling through the NK cell activating receptor, Ly49H, can also promote the expression of nutrient transporters. Collectively, our findings revealed multiple pathways that can induce the expression of nutrient transporters on NK cells while highlighting the imperative role of MyD88 in NK cell metabolism during infection.
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Affiliation(s)
- Abrar Ul Haq Khan
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Saeedah Musaed Almutairi
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Botany and Microbiology Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Alaa Kassim Ali
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Rosalba Salcedo
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institute of Health, Bethesda, MD, United States
| | - C. Andrew Stewart
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institute of Health, Bethesda, MD, United States
| | - Lisheng Wang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Seung-Hwan Lee
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
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24
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Abstract
Natural killer (NK) cells are innate lymphocytes that provide critical host defense against pathogens and cancer. Originally heralded for their early and rapid effector activity, NK cells have been recognized over the last decade for their ability to undergo adaptive immune processes, including antigen-driven clonal expansion and generation of long-lived memory. This review presents an overview of how NK cells lithely partake in both innate and adaptive responses and how this versatility is manifest in human NK cell-mediated immunity.
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Affiliation(s)
- Adriana M Mujal
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
| | - Rebecca B Delconte
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; .,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY 10065, USA
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25
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Abstract
NK cells express a limited number of germline-encoded receptors that identify infected or transformed cells, eliciting cytotoxicity, effector cytokine production, and in some circumstances clonal proliferation and memory. To maximize the functional diversity of NK cells, the array and expression level of surface receptors vary between individual NK cell “clones” in mice and humans. Cytomegalovirus infection in both species can expand a population of NK cells expressing receptors critical to the clearance of infected cells and generate a long-lived memory pool capable of targeting future infection with greater efficacy. Here, we discuss the pathways and factors that regulate the generation and maintenance of effector and memory NK cells and propose how this understanding may be harnessed therapeutically.
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Affiliation(s)
- Sam Sheppard
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Joseph C Sun
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY.,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY
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26
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Wight A, Parsons BD, Rahim MMA, Makrigiannis AP. A Central Role for Ly49 Receptors in NK Cell Memory. J Immunol 2021; 204:2867-2875. [PMID: 32423924 DOI: 10.4049/jimmunol.2000196] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2020] [Accepted: 04/06/2020] [Indexed: 12/16/2022]
Abstract
In the past decade, the study of NK cells was transformed by the discovery of three ways these "innate" immune cells display adaptive immune behavior, including the ability to form long-lasting, Ag-specific memories of a wide variety of immunogens. In this review, we examine these types of NK cell memory, highlighting their unique features and underlying similarities. We explore those similarities in depth, focusing on the role that Ly49 receptors play in various types of NK cell memory. From this Ly49 dependency, we will build a model by which we understand the three types of NK cell memory as aspects of what is ultimately the same adaptive immune process, rather than separate facets of NK cell biology. We hope that a defined model for NK cell memory will empower collaboration between researchers of these three fields to further our understanding of this surprising and clinically promising immune response.
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Affiliation(s)
- Andrew Wight
- Department of Cancer Immunology and Virology, Dana Farber Cancer Institute, Boston, MA 02215
| | - Brendon D Parsons
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada; and
| | - Mir Munir A Rahim
- Department of Biomedical Sciences, University of Windsor, Windsor, Ontario N9B 3P4, Canada
| | - Andrew P Makrigiannis
- Department of Microbiology and Immunology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada; and
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27
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Abstract
Advances in cellular therapies for pediatric patients have created many opportunities for improved survival with reduced morbidity. This article reviews current cellular therapies in pediatric hematological malignancy, including the most updated practices in hematopoietic stem cell transplant and the use of chimeric antigen receptor (CAR) therapy in T cells. Hematopoietic stem cell transplant has evolved with improvements in chemotherapy regimens, immunosuppression, and donor-matching options. Novel therapies in development which will likely further improve the options for patients are reviewed including Natural Killer, Regulatory T-cells and αβ depletion.
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Affiliation(s)
- Susan Kuldanek
- Hemophilia and Thrombosis Center, Center for Cancer and Blood Disorders, Children's Hospital Colorado, University of Colorado-Anschutz Medical Campus, 13123 East 16th Avenue, Aurora, CO 80045, USA
| | - Bryce Pasko
- Department of Pathology and Laboratory Medicine, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA; Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Melkon DomBourian
- Main Core Laboratory and Point of Care Testing, Department of Pathology and Laboratory Medicine, Children's Hospital Colorado, 13123 East 16th Avenue, B120, Aurora, CO 80045, USA; Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA
| | - Kyle Annen
- Department of Pathology and Laboratory Medicine, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA; Department of Pathology, University of Colorado-Anschutz Medical Campus, Aurora, CO, USA.
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28
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Beaulieu AM. Transcriptional and epigenetic regulation of memory NK cell responses. Immunol Rev 2021; 300:125-133. [PMID: 33491231 DOI: 10.1111/imr.12947] [Citation(s) in RCA: 8] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Revised: 12/28/2020] [Accepted: 12/31/2020] [Indexed: 12/14/2022]
Abstract
Natural killer (NK) cells are cytotoxic innate lymphocytes with key roles in host protection against viruses and malignancy. Notwithstanding their historical classification as innate immune cells, NK cells are now understood to have some capacity to mount memory or memory-like immune responses in which effector cells undergo antigen-driven expansion and give rise to long-lived memory cells with enhanced functionality. Understanding how antigen-specific effector and memory NK responses are regulated is an important and active area of research in the field. Here, we discuss key transcription factors and epigenetic processes involved in antigen-specific effector and memory NK cell differentiation.
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Affiliation(s)
- Aimee M Beaulieu
- Center for Immunity and Inflammation, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers - The State University of New Jersey, Newark, NJ, USA.,Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers - The State University of New Jersey, Newark, NJ, USA
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29
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Wiedemann GM, Grassmann S, Lau CM, Rapp M, Villarino AV, Friedrich C, Gasteiger G, O'Shea JJ, Sun JC. Divergent Role for STAT5 in the Adaptive Responses of Natural Killer Cells. Cell Rep 2020; 33:108498. [PMID: 33326784 DOI: 10.1016/j.celrep.2020.108498] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [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: 01/06/2020] [Revised: 10/09/2020] [Accepted: 11/17/2020] [Indexed: 01/25/2023] Open
Abstract
Natural killer (NK) cells are innate lymphocytes with the capacity to elicit adaptive features, including clonal expansion and immunological memory. Because signal transducer and activator of transcription 5 (STAT5) is essential for NK cell development, the roles of this transcription factor and its upstream cytokines interleukin-2 (IL-2) and IL-15 during infection have not been carefully investigated. In this study, we investigate how STAT5 regulates transcription during viral infection. We demonstrate that STAT5 is induced in NK cells by IL-12 and STAT4 early after infection and that partial STAT5 deficiency results in a defective capacity of NK cells to generate long-lived memory cells. Furthermore, we find a functional dichotomy of IL-2 and IL-15 signaling outputs during viral infection, whereby both cytokines drive clonal expansion, but only IL-15 is required for memory NK cell survival. We thus highlight a role for STAT5 signaling in promoting an optimal anti-viral NK cell response. Wiedemann et al. demonstrate that Stat5a and Stat5b are induced by IL-12 and STAT4 signaling in NK cells following MCMV infection. They further provide evidence that the cytokines IL-2 and IL-15 upstream of STAT5 differentially promote the early and late stages of the adaptive NK cell response to MCMV infection.
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30
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Anderko RR, Rinaldo CR, Mailliard RB. IL-18 Responsiveness Defines Limitations in Immune Help for Specialized FcRγ - NK Cells. J Immunol 2020; 205:3429-3442. [PMID: 33188073 DOI: 10.4049/jimmunol.2000430] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 10/15/2020] [Indexed: 11/19/2022]
Abstract
Despite being prolific innate killers, NK cells are also key helper cells in antiviral defense, influencing adaptive immune responses via interactions with dendritic cells (DCs). In addition to causing NK cell dysfunction, HIV-1 infection contributes to the expansion of a rare population of NK cells deficient in FcRγ (FcRγ-), an intracellular adaptor protein that associates with CD16. The implications of this inflated NK cell subset in treated HIV-1 infection remain unclear. In this study, we explored the helper function of human NK cells in chronic HIV-1 infection, with a particular focus on characterizing FcRγ- NK cells. Exposure of NK cells to innate DC-derived costimulatory factors triggered their helper activity, defined by their ability to produce IFN-γ and to drive the maturation of high IL-12-producing DCs. In this setting, however, FcRγ- NK cells were defective at producing the dominant DC-polarizing agent IFN-γ. The reduced responsiveness of FcRγ- NK cells to IL-18 in particular, which was attributable to impaired inducible expression of IL-18Rα, extended beyond an inability to produce IFN-γ, as FcRγ- NK cells showed limited potential to differentiate into CD16-/CD25+/CD83+ helper cells. Notwithstanding their deficiencies in responsiveness to innate environmental cues, FcRγ- NK cells responded robustly to adaptive Ab-mediated signaling through CD16. The presence of an expanded population of FcRγ- NK cells with a diminished capacity to respond to IL-18 and to effectively modulate DC function may contribute to disturbances in proper immune homeostasis associated with HIV-1 infection and to defects in the initiation of optimal adaptive antiviral responses.
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Affiliation(s)
- Renee R Anderko
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15261; and
| | - Charles R Rinaldo
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15261; and.,Department of Pathology, University of Pittsburgh, Pittsburgh, PA 15261
| | - Robbie B Mailliard
- Department of Infectious Diseases and Microbiology, University of Pittsburgh, Pittsburgh, PA 15261; and
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31
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Abstract
Emerging viral diseases pose a major threat to public health worldwide. Nearly all emerging viruses, including Ebola, Dengue, Nipah, West Nile, Zika, and coronaviruses (including SARS-Cov2, the causative agent of the current COVID-19 pandemic), have zoonotic origins, indicating that animal-to-human transmission constitutes a primary mode of acquisition of novel infectious diseases. Why these viruses can cause profound pathologies in humans, while natural reservoir hosts often show little evidence of disease is not completely understood. Differences in the host immune response, especially within the innate compartment, have been suggested to be involved in this divergence. Natural killer (NK) cells are innate lymphocytes that play a critical role in the early antiviral response, secreting effector cytokines and clearing infected cells. In this review, we will discuss the mechanisms through which NK cells interact with viruses, their contribution towards maintaining equilibrium between the virus and its natural host, and their role in disease progression in humans and other non-natural hosts.
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Affiliation(s)
- Carlos Diaz-Salazar
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, United States,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY 10065, United States
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, United States; Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY 10065, United States.
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32
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Semmes EC, Hurst JH, Walsh KM, Permar SR. Cytomegalovirus as an immunomodulator across the lifespan. Curr Opin Virol 2020; 44:112-120. [PMID: 32818717 DOI: 10.1016/j.coviro.2020.07.013] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 07/17/2020] [Accepted: 07/20/2020] [Indexed: 12/12/2022]
Abstract
Human cytomegalovirus (HCMV) is a nearly ubiquitous β-herpesvirus that establishes latent infection in the majority of the world's population. HCMV infection profoundly influences the host immune system and, perhaps more than any other human pathogen, has been shown to create a lasting imprint on human T and NK cell compartments. HCMV-seropositivity has been associated with both beneficial effects, such as increased vaccine responsiveness or heterologous protection against infections, and deleterious effects, such as pathological neurodevelopmental sequelae from congenital infection in utero and cumulative damage from chronic lifelong latency into old age. The significance of many of these associations is unclear, as studies into the causal mechanisms linking HCMV and these disease outcomes are lacking; however, HCMV-mediated changes to the immune system may play a key role. This review examines how HCMV impacts the host immune system in an age-dependent manner with important implications for human immunophenotypes and long-term disease risk.
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Affiliation(s)
- Eleanor C Semmes
- Medical Scientist Training Program, Duke University, Durham, NC, USA; Children's Health and Discovery Institute, Department of Pediatrics, Duke University, Durham, NC, USA
| | - Jillian H Hurst
- Children's Health and Discovery Institute, Department of Pediatrics, Duke University, Durham, NC, USA; Department of Pediatrics, Division of Infectious Diseases, Duke University, Durham NC, USA
| | - Kyle M Walsh
- Children's Health and Discovery Institute, Department of Pediatrics, Duke University, Durham, NC, USA; Department of Neurosurgery, Duke University, Durham, NC, USA
| | - Sallie R Permar
- Children's Health and Discovery Institute, Department of Pediatrics, Duke University, Durham, NC, USA; Duke Human Vaccine Institute, Duke University, Durham, NC, USA; Department of Pediatrics, Division of Infectious Diseases, Duke University, Durham NC, USA.
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33
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Wiedemann GM, Geary CD, Lau CM, Sun JC. Cutting Edge: STAT1-Mediated Epigenetic Control of Rsad2 Promotes Clonal Expansion of Antiviral NK Cells. J Immunol 2020; 205:21-25. [PMID: 32461239 DOI: 10.4049/jimmunol.2000086] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2020] [Accepted: 04/29/2020] [Indexed: 01/15/2023]
Abstract
NK cells represent a cellular component of innate immunity but possess features of adaptive immunity, including clonal expansion and establishment of long-lived memory following infection. During mouse CMV (MCMV) infection, we observed Rsad2 (which encodes Viperin) to be among the most highly induced IFN stimulatory genes in activated NK cells, correlating with increased chromatin accessibility at the Rsad2 gene locus. Furthermore, in NK cells stimulated with IFN-α, the promoter region of Rsad2 was enriched for STAT1 binding and the permissive histone mark H3K4me3. IFN-αR- and STAT1-deficient NK cells showed an impairment of Rsad2 induction and chromatin accessibility during MCMV infection. Finally, Rsad2-deficient NK cells were defective in clonal expansion and memory formation following exposure to MCMV, in part because of greater apoptosis. Thus, our study reveals a critical mechanism of STAT1-mediated epigenetic control of Rsad2 to promote the adaptive behavior of NK cells during viral infection.
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Affiliation(s)
- Gabriela M Wiedemann
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065; and
| | - Clair D Geary
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065; and.,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY 10065
| | - Colleen M Lau
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065; and
| | - Joseph C Sun
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065; and .,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY 10065
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34
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Park KH, Ryu JH, Bae H, Yun S, Jang JH, Han K, Cho BS, Kim HJ, Lee H, Oh EJ. Delayed NK Cell Reconstitution and Reduced NK Activity Increased the Risks of CMV Disease in Allogeneic-Hematopoietic Stem Cell Transplantation. Int J Mol Sci 2020; 21:E3663. [PMID: 32455959 DOI: 10.3390/ijms21103663] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 04/15/2020] [Revised: 05/18/2020] [Accepted: 05/20/2020] [Indexed: 12/18/2022] Open
Abstract
Cytomegalovirus (CMV) infection has a significant impact in patients after allogeneic hematopoietic stem cell transplantation (HSCT). We investigated natural killer (NK) cell reconstitution and cytotoxic/cytokine production in controlling CMV infection, especially severe CMV disease in HSCT patients. Fifty-eight patients with acute myeloid leukemia (AML) who received allo-HSCT were included. We monitored NK reconstitution and NK function at baseline, 30, 60, 90, 120, 150, and 180 days after HSCT, and compared the results in recipients stratified on post-HSCT CMV reactivation (n = 23), non-reactivation (n = 24) versus CMV disease (n = 11) groups. The CMV disease group had a significantly delayed recovery of CD56dim NK cells and expansion of FcRγ-CD3ζ+NK cells started post-HSCT 150 days. Sequential results of NK cytotoxicity, NK cell-mediated antibody-dependent cellular cytotoxicity (NK-ADCC), and NK-Interferon-gamma (NK-IFNγ) production for 180 days demonstrated delayed recovery and decreased levels in the CMV disease group compared with the other groups. The results within 1 month after CMV viremia also showed a significant decrease in NK function in the CMV disease group compared to the CMV reactivation group. It suggests that NK cells' maturation and cytotoxic/IFNγ production contributes to CMV protection, thereby revealing the NK phenotype and functional NK monitoring as a biomarker for CMV risk prediction, especially CMV disease.
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35
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Abstract
One of the hallmarks of the vertebrate adaptive immune system is the prolific expansion of individual cell clones that encounter their cognate antigen. More recently, however, there is growing evidence for the clonal expansion of innate lymphocytes, particularly in the context of pathogen challenge. Clonal expansion not only serves to amplify the number of specific lymphocytes to mount a robust protective response to the pathogen at hand but also results in selection and differentiation of the responding lymphocytes to generate a multitude of cell fates. Here, we summarize the evidence for clonal expansion in innate lymphocytes, which has primarily been observed in natural killer (NK) cells responding to cytomegalovirus infection, and consider the requirements for such a response in NK cells in light of those for T cells. Furthermore, we discuss multiple aspects of heterogeneity that both contribute to and result from the fundamental immunological process of clonal expansion, highlighting the parallels between innate and adaptive lymphocytes, with a particular focus on NK cells and CD8+ T cells.
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36
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Abstract
NK cells are cytotoxic lymphocytes that provide systemic defense against pathogens and malignancy. Although historically considered cells of the innate immune system, NK cells are now known to be capable of memory or memory-like immune responses in certain settings. Memory NK responses were initially reported over a decade ago in studies involving mouse models of cytomegalovirus infection and delayed-type hypersensitivity reactions to chemical haptens and viral antigens. Since then, a growing body of literature suggests that memory or memory-like NK cell responses may occur in a broader range of immunological settings, including in response to various viral and bacterial infections, and some immunization protocols. Memory-like NK cell responses have also now been reported in humans and non-human primates. Here, we summarize recent studies demonstrating memory or memory-like responses by NK cells in settings of infection and immunization against infectious agents.
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Affiliation(s)
- Marc Brillantes
- Center for Immunity and Inflammation, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers—The State University of New Jersey, Newark, NJ, United States
- Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers—The State University of New Jersey, Newark, NJ, United States
- School of Graduate Studies, Rutgers Biomedical and Health Sciences, Rutgers—The State University of New Jersey, Newark, NJ, United States
| | - Aimee M. Beaulieu
- Center for Immunity and Inflammation, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers—The State University of New Jersey, Newark, NJ, United States
- Department of Microbiology, Biochemistry, and Molecular Genetics, New Jersey Medical School, Rutgers Biomedical and Health Sciences, Rutgers—The State University of New Jersey, Newark, NJ, United States
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37
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Netea MG, Domínguez-Andrés J, Barreiro LB, Chavakis T, Divangahi M, Fuchs E, Joosten LAB, van der Meer JWM, Mhlanga MM, Mulder WJM, Riksen NP, Schlitzer A, Schultze JL, Stabell Benn C, Sun JC, Xavier RJ, Latz E. Defining trained immunity and its role in health and disease. Nat Rev Immunol 2020; 20:375-388. [PMID: 32132681 PMCID: PMC7186935 DOI: 10.1038/s41577-020-0285-6] [Citation(s) in RCA: 1163] [Impact Index Per Article: 290.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2020] [Indexed: 12/14/2022]
Abstract
Immune memory is a defining feature of the acquired immune system, but activation of the innate immune system can also result in enhanced responsiveness to subsequent triggers. This process has been termed ‘trained immunity’, a de facto innate immune memory. Research in the past decade has pointed to the broad benefits of trained immunity for host defence but has also suggested potentially detrimental outcomes in immune-mediated and chronic inflammatory diseases. Here we define ‘trained immunity’ as a biological process and discuss the innate stimuli and the epigenetic and metabolic reprogramming events that shape the induction of trained immunity. Here a group of leaders in the field define our current understanding of ‘trained immunity’, which refers to the memory-type responses that occur in the innate immune system. The authors discuss our current understanding of the key epigenetic and metabolic processes involved in trained immunity and consider its relevance in immune-mediated diseases and cancer.
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Affiliation(s)
- Mihai G Netea
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands. .,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands. .,Department of Genomics and Immunoregulation, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany.
| | - Jorge Domínguez-Andrés
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Luis B Barreiro
- Department of Genetics, CHU Sainte-Justine Research Centre, Montreal, QC, Canada.,Department of Pediatrics, University of Montreal, Montreal, QC, Canada.,Genetics Section, Department of Medicine, The University of Chicago, Chicago, IL, USA
| | - Triantafyllos Chavakis
- Institute for Clinical Chemistry and Laboratory Medicine, University Hospital and Faculty of Medicine Carl Gustav Carus of TU Dresden, Dresden, Germany.,Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, Edinburgh, UK
| | - Maziar Divangahi
- Meakins-Christie Laboratories, Department of Medicine, McGill University Health Centre, Montreal, QC, Canada.,Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada.,McGill International TB Centre, McGill University Health Centre, Montreal, QC, Canada
| | - Elaine Fuchs
- Howard Hughes Medical Institute, Robin Chemers Laboratory of Mammalian Cell Biology and Development, The Rockefeller University, New York, NY, USA
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Jos W M van der Meer
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Musa M Mhlanga
- Division of Chemical and Systems Biology, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, Institute of Infectious Disease and Molecular Medicine, University of Cape Town, Cape Town, South Africa.,Gene Expression and Biophysics Unit, Instituto de Medicina Molecular, Faculdade de Medicina Universidade de Lisboa, Lisbon, Portugal
| | - Willem J M Mulder
- Translational and Molecular Imaging Institute, Department of Radiology, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Department of Oncological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, USA.,Laboratory of Chemical Biology, Department of Biomedical Engineering and Institute for Complex Molecular Systems, Eindhoven University of Technology, Eindhoven, Netherlands
| | - Niels P Riksen
- Department of Internal Medicine and Radboud Center for Infectious Diseases, Radboud University Medical Center, Nijmegen, Netherlands.,Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, Netherlands
| | - Andreas Schlitzer
- Myeloid Cell Biology, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Joachim L Schultze
- Department of Genomics and Immunoregulation, Life and Medical Sciences Institute, University of Bonn, Bonn, Germany
| | - Christine Stabell Benn
- Bandim Health Project, OPEN, Department of Clinical Research, University of Southern Denmark, Odense, Denmark
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Louis V. Gerstner Jr. Graduate School of Biomedical Sciences, Memorial Sloan Kettering Cancer Center, New York, NY, USA.,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY, USA
| | - Ramnik J Xavier
- Broad Institute of MIT and Harvard, Cambridge, MA, USA.,Center for Computational and Integrative Biology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, USA
| | - Eicke Latz
- Institute of Innate Immunity, University Hospital, University of Bonn, Bonn, Germany. .,Division of Infectious Diseases and Immunology, University of Massachusetts Medical School, Worcester, MA, USA. .,German Center for Neurodegenerative Diseases, Bonn, Germany.
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38
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Sharrock J, Sun JC. Innate immunological memory: from plants to animals. Curr Opin Immunol 2020; 62:69-78. [PMID: 31931432 DOI: 10.1016/j.coi.2019.12.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 12/02/2019] [Accepted: 12/06/2019] [Indexed: 02/07/2023]
Abstract
Immunological memory is defined by the ability of the host to recognise and mount a robust secondary response against a previously encountered pathogen. Classic immune memory is an evolutionary adaptation of the vertebrate immune system that has been attributed to adaptive lymphocytes, including T and B cells. In contrast, the innate immune system was known for its conserved, non-specific roles in rapid host defence, but historically was considered to be unable to generate memory. Recent studies have challenged our understanding of innate immunity and now provides a growing body of evidence for innate immune memory. However, in many species and in various cell types the underlying mechanisms of immune 'memory' formation remain poorly understood. The purpose of this review is to explore and summarise the emerging evidence for immunological 'memory' in plants, invertebrates, and vertebrates.
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Affiliation(s)
- Jessica Sharrock
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, United States
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, 10065, United States; Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY 10065, United States.
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39
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Abstract
Natural killer (NK) cells can swiftly kill multiple adjacent cells if these show surface markers associated with oncogenic transformation. This property, which is unique among immune cells, and their capacity to enhance antibody and T cell responses support a role for NK cells as anticancer agents. Although tumours may develop several mechanisms to resist attacks from endogenous NK cells, ex vivo activation, expansion and genetic modification of NK cells can greatly increase their antitumour activity and equip them to overcome resistance. Some of these methods have been translated into clinical-grade platforms and support clinical trials of NK cell infusions in patients with haematological malignancies or solid tumours, which have yielded encouraging results so far. The next generation of NK cell products will be engineered to enhance activating signals and proliferation, suppress inhibitory signals and promote their homing to tumours. These modifications promise to significantly increase their clinical activity. Finally, there is emerging evidence of increased NK cell-mediated tumour cell killing in the context of molecularly targeted therapies. These observations, in addition to the capacity of NK cells to magnify immune responses, suggest that NK cells are poised to become key components of multipronged therapeutic strategies for cancer.
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Affiliation(s)
- Noriko Shimasaki
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Amit Jain
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.,Division of Medical Oncology, National Cancer Centre, Singapore, Singapore
| | - Dario Campana
- Department of Pediatrics, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
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40
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Andoniou CE, Schuster IS, Degli-Esposti MA. The Avidity Game: Selecting Natural-Born Killers. Immunity 2019; 50:1337-1339. [PMID: 31216454 DOI: 10.1016/j.immuni.2019.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Natural killer (NK) cells display some features equivalent to those of adaptive immune effectors, but the molecular processes underlying these adaptive-like characteristics are just beginning to be defined. In this issue of Immunity, Adams et al. (2019) and Grassmann et al. (2019) report that avidity selection for Ly49H governs the expansion, differentiation, and function of NK cells after cytomegalovirus infection.
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Affiliation(s)
- Christopher E Andoniou
- Infection and Immunity Program and Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia; Centre for Experimental Immunology, Lions Eye Institute, Perth, WA, Australia
| | - Iona S Schuster
- Infection and Immunity Program and Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia; Centre for Experimental Immunology, Lions Eye Institute, Perth, WA, Australia
| | - Mariapia A Degli-Esposti
- Infection and Immunity Program and Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, VIC, Australia; Centre for Experimental Immunology, Lions Eye Institute, Perth, WA, Australia.
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41
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Della Chiesa M, De Maria A, Muccio L, Bozzano F, Sivori S, Moretta L. Human NK Cells and Herpesviruses: Mechanisms of Recognition, Response and Adaptation. Front Microbiol 2019; 10:2297. [PMID: 31636622 PMCID: PMC6788305 DOI: 10.3389/fmicb.2019.02297] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [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: 08/06/2019] [Accepted: 09/20/2019] [Indexed: 12/01/2022] Open
Abstract
NK cells contribute to early defenses against viruses through their inborn abilities that include sensing of PAMPs and inflammatory signals such as cytokines or chemokines, recognition, and killing of infected cells through activating surface receptors engagement. Moreover, they support adaptive responses via Ab-dependent mechanisms, triggered by CD16, and DC editing. Their fundamental role in anti-viral responses has been unveiled in patients with NK cell deficiencies suffering from severe Herpesvirus infections. Notably, these infections, often occurring as primary infections early in life, can be efficiently cleared by NK, T, and B cells in healthy hosts. Herpesviruses however, generate a complicated balance with the host immune system through their latency cycle moving between immune control and viral reactivation. This lifelong challenge has contributed to the development of numerous evasion mechanisms by Herpesviruses, many of which devoted to elude NK cell surveillance from viral reactivations rather than primary infections. This delicate equilibrium can be altered in proportions of healthy individuals promoting virus reactivation and, more often, in immunocompromised subjects. However, the constant stimulus provided by virus-host interplay has also favored NK-cell adaptation to Herpesviruses. During anti-HCMV responses, NK cells can reshape their receptor repertoire and function, through epigenetic remodeling, and acquire adaptive traits such as longevity and clonal expansion abilities. The major mechanisms of recognition and effector responses employed by NK cells against Herpesviruses, related to their genomic organization will be addressed, including those allowing NK cells to generate memory-like responses. In addition, the mechanisms underlying virus reactivation or control will be discussed.
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Affiliation(s)
- Mariella Della Chiesa
- Department of Experimental Medicine (DIMES), School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy.,Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
| | - Andrea De Maria
- Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy.,Department of Health Sciences (DISSAL), School of Medical and Pharmaceutical Sciences University of Genoa, Genoa, Italy.,Clinica Malattie Infettive, Ospedale Policlinico San Martino IRCCS, Genoa, Italy
| | - Letizia Muccio
- Department of Experimental Medicine (DIMES), School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy
| | - Federica Bozzano
- Laboratory of Tumor Immunology, Department of Immunology, IRCCS Ospedale Bambino Gesù, Rome, Italy
| | - Simona Sivori
- Department of Experimental Medicine (DIMES), School of Medical and Pharmaceutical Sciences, University of Genoa, Genoa, Italy.,Centre of Excellence for Biomedical Research, University of Genoa, Genoa, Italy
| | - Lorenzo Moretta
- Laboratory of Tumor Immunology, Department of Immunology, IRCCS Ospedale Bambino Gesù, Rome, Italy
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42
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Manandhar T, Hò GGT, Pump WC, Blasczyk R, Bade-Doeding C. Battle between Host Immune Cellular Responses and HCMV Immune Evasion. Int J Mol Sci 2019; 20:ijms20153626. [PMID: 31344940 PMCID: PMC6695940 DOI: 10.3390/ijms20153626] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/18/2019] [Accepted: 07/19/2019] [Indexed: 12/16/2022] Open
Abstract
Human cytomegalovirus (HCMV) is ubiquitously prevalent. HCMV infection is typically asymptomatic and controlled by the immune system in healthy individuals, yet HCMV can be severely pathogenic for the fetus during pregnancy and in immunocompromised persons, such as transplant recipients or HIV infected patients. HCMV has co-evolved with the hosts, developed strategies to hide from immune effector cells and to successfully survive in the human organism. One strategy for evading or delaying the immune response is maintenance of the viral genome to establish the phase of latency. Furthermore, HCMV immune evasion involves the downregulation of human leukocyte antigens (HLA)-Ia molecules to hide infected cells from T-cell recognition. HCMV expresses several proteins that are described for downregulation of the HLA class I pathway via various mechanisms. Here, we review the wide range of immune evasion mechanisms of HCMV. Understanding the mechanisms of HCMV immune evasion will contribute to the development of new customized therapeutic strategies against the virus.
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Affiliation(s)
- Trishna Manandhar
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Gia-Gia T Hò
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Wiebke C Pump
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
| | - Rainer Blasczyk
- Institute for Transfusion Medicine, Hannover Medical School, 30625 Hannover, Germany
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43
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Grassmann S, Pachmayr LO, Leube J, Mihatsch L, Andrae I, Flommersfeld S, Oduro J, Cicin-Sain L, Schiemann M, Flossdorf M, Buchholz VR. Distinct Surface Expression of Activating Receptor Ly49H Drives Differential Expansion of NK Cell Clones upon Murine Cytomegalovirus Infection. Immunity 2019; 50:1391-1400.e4. [DOI: 10.1016/j.immuni.2019.04.015] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Revised: 03/08/2019] [Accepted: 04/25/2019] [Indexed: 12/25/2022]
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