101
|
Maintenance of Type 2 Response by CXCR6-Deficient ILC2 in Papain-Induced Lung Inflammation. Int J Mol Sci 2019; 20:ijms20215493. [PMID: 31690060 PMCID: PMC6862482 DOI: 10.3390/ijms20215493] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 10/29/2019] [Accepted: 11/02/2019] [Indexed: 01/08/2023] Open
Abstract
Innate lymphoid cells (ILC) are important players of early immune defenses in situations like lymphoid organogenesis or in case of immune response to inflammation, infection and cancer. Th1 and Th2 antagonism is crucial for the regulation of immune responses, however mechanisms are still unclear for ILC functions. ILC2 and NK cells were reported to be both involved in allergic airway diseases and were shown to be able to interplay in the regulation of the immune response. CXCR6 is a common chemokine receptor expressed by all ILC, and its deficiency affects ILC2 and ILC1/NK cell numbers and functions in lungs in both steady-state and inflammatory conditions. We determined that the absence of a specific ILC2 KLRG1+ST2− subset in CXCR6-deficient mice is probably dependent on CXCR6 for its recruitment to the lung under inflammation. We show that despite their decreased numbers, lung CXCR6-deficient ILC2 are even more activated cells producing large amount of type 2 cytokines that could drive eosinophilia. This is strongly associated to the decrease of the lung Th1 response in CXCR6-deficient mice.
Collapse
|
102
|
De Pelsmaeker S, Denaeghel S, Hermans L, Favoreel HW. Identification of a Porcine Liver Eomes highT-bet low NK Cell Subset That Resembles Human Liver Resident NK Cells. Front Immunol 2019; 10:2561. [PMID: 31736976 PMCID: PMC6836759 DOI: 10.3389/fimmu.2019.02561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 10/15/2019] [Indexed: 12/13/2022] Open
Abstract
Natural killer (NK) cells are cells of the innate immunity and play an important role in the defense against viral infections and cancer, but also contribute to shaping adaptive immune responses. Long-lived tissue-resident NK cells have been described in man and mouse, particularly in the liver, contributing to the idea that the functional palette of NK cells may be broader than originally thought, and may include memory-like responses and maintaining tissue homeostasis. Remarkably, liver resident (lr)NK cells in man and mouse show substantial species-specific differences, in particular reverse expression patterns of the T-box transcription factors Eomesodermin (Eomes) and T-bet (EomeshighT-betlow in man and vice versa in mouse). In pig, compared to blood NK cells which are CD3-CD8αhigh cells, the porcine liver contains an abundant additional CD3-CD8αdim NK cell subpopulation. In the current study, we show that this porcine CD3-CD8αdim liver NK population is highly similar to its human lrNK counterpart and therefore different from mouse lrNK cells. Like human lrNK cells, this porcine NK cell population shows an EomeshighT-betlow expression pattern. In addition, like its human counterpart, the porcine liver NK population is CD49e- and CXCR6+. Furthermore, the porcine EomeshighT-betlow liver NK cell population is able to produce IFN-γ upon IL-2/12/18 stimulation but lacks the ability to kill K562 or pseudorabies virus-infected target cells, although limited degranulation could be observed upon incubation with K562 cells or upon CD16 crosslinking. All together, these results show that porcine EomeshighT-betlow NK cells in the liver strongly resemble human lrNK cells, and therefore indicate that the pig may represent a unique model to study the function of these lrNK cells in health and disease.
Collapse
Affiliation(s)
- Steffi De Pelsmaeker
- Laboratory of Immunology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Sofie Denaeghel
- Laboratory of Immunology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Leen Hermans
- Laboratory of Immunology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Herman W Favoreel
- Laboratory of Immunology, Department of Virology, Parasitology and Immunology, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| |
Collapse
|
103
|
Fisicaro P, Rossi M, Vecchi A, Acerbi G, Barili V, Laccabue D, Montali I, Zecca A, Penna A, Missale G, Ferrari C, Boni C. The Good and the Bad of Natural Killer Cells in Virus Control: Perspective for Anti-HBV Therapy. Int J Mol Sci 2019; 20:ijms20205080. [PMID: 31614928 PMCID: PMC6834135 DOI: 10.3390/ijms20205080] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 10/09/2019] [Accepted: 10/10/2019] [Indexed: 12/12/2022] Open
Abstract
Immune modulatory therapies are widely believed to represent potential therapeutic strategies for chronic hepatitis B infection (CHB). Among the cellular targets for immune interventions, Natural Killer (NK) cells represent possible candidates because they have a key role in anti-viral control by producing cytokines and by exerting cytotoxic functions against virus-infected cells. However, in patients with chronic hepatitis B, NK cells have been described to be more pathogenic than protective with preserved cytolytic activity but with a poor capacity to produce anti-viral cytokines. In addition, NK cells can exert a regulatory activity and possibly suppress adaptive immune responses in the setting of persistent viral infections. Consequently, a potential drawback of NK-cell targeted modulatory interventions is that they can potentiate the suppressive NK cell effect on virus-specific T cells, which further causes impairment of exhausted anti-viral T cell functions. Thus, clinically useful NK-cell modulatory strategies should be not only suited to improve positive anti-viral NK cell functions but also to abrogate T cell suppression by NK cell-mediated T cell killing. This review outlines the main NK cell features with a particular focus on CHB infection. It describes different mechanisms involved in NK-T cell interplay as well as how NK cells can have positive anti-viral effector functions and negative suppressive effects on T cells activity. This review discusses how modulation of their balance can have potential therapeutic implications.
Collapse
Affiliation(s)
- Paola Fisicaro
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
| | - Marzia Rossi
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
| | - Andrea Vecchi
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
| | - Greta Acerbi
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
| | - Valeria Barili
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
| | - Diletta Laccabue
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
| | - Ilaria Montali
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
| | - Alessandra Zecca
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
| | - Amalia Penna
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
| | - Gabriele Missale
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
| | - Carlo Ferrari
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
- Department of Medicine and Surgery, University of Parma, 43126 Parma, Italy.
| | - Carolina Boni
- Laboratory of Viral Immunopathology, Unit of Infectious Diseases and Hepatology, Azienda-Ospedaliero-Universitaria di Parma, 43126 Parma, Italy.
| |
Collapse
|
104
|
Ravichandran G, Neumann K, Berkhout LK, Weidemann S, Langeneckert AE, Schwinge D, Poch T, Huber S, Schiller B, Hess LU, Ziegler AE, Oldhafer KJ, Barikbin R, Schramm C, Altfeld M, Tiegs G. Interferon-γ-dependent immune responses contribute to the pathogenesis of sclerosing cholangitis in mice. J Hepatol 2019; 71:773-782. [PMID: 31173810 DOI: 10.1016/j.jhep.2019.05.023] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 04/29/2019] [Accepted: 05/29/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND AND AIMS Primary sclerosing cholangitis (PSC) is an idiopathic, chronic cholestatic liver disorder characterized by biliary inflammation and fibrosis. Increased numbers of intrahepatic interferon-γ- (IFNγ) producing lymphocytes have been documented in patients with PSC, yet their functional role remains to be determined. METHODS Liver tissue samples were collected from patients with PSC. The contribution of lymphocytes to liver pathology was assessed in Mdr2-/- x Rag1-/- mice, which lack T and B cells, and following depletion of CD90.2+ or natural killer (NK)p46+ cells in Mdr2-/- mice. Liver pathology was also determined in Mdr2-/- x Ifng-/- mice and following anti-IFNγ antibody treatment of Mdr2-/- mice. Immune cell composition was analysed by multi-colour flow cytometry. Liver injury and fibrosis were determined by standard assays. RESULTS Patients with PSC showed increased IFNγ serum levels and elevated numbers of hepatic CD56bright NK cells. In Mdr2-/- mice, hepatic CD8+ T cells and NK cells were the primary source of IFNγ. Depletion of CD90.2+ cells reduced hepatic Ifng expression, NK cell cytotoxicity and liver injury similar to Mdr2-/- x Rag1-/- mice. Depletion of NK cells resulted in reduced CD8+ T cell cytotoxicity and liver fibrosis. The complete absence of IFNγ in Mdr2-/-x Ifng-/- mice reduced NK cell and CD8+ T cell frequencies expressing the cytotoxic effector molecules granzyme B and TRAIL and prevented liver fibrosis. The antifibrotic effect of IFNγ was also observed upon antibody-dependent neutralisation in Mdr2-/- mice. CONCLUSION IFNγ changed the phenotype of hepatic CD8+ T cells and NK cells towards increased cytotoxicity and its absence attenuated liver fibrosis in chronic sclerosing cholangitis. Therefore, unravelling the immunopathogenesis of PSC with a particular focus on IFNγ might help to develop novel treatment options. LAY SUMMARY Primary sclerosing cholangitis (PSC) is a chronic cholestatic liver disease characterized by biliary inflammation and fibrosis, whose current medical treatment is hardly effective. We observed an increased interferon (IFN)-γ response in patients with PSC and in a mouse model of sclerosing cholangitis. IFNγ changed the phenotype of hepatic CD8+ T lymphocytes and NK cells towards increased cytotoxicity, and its absence decreased liver cell death, reduced frequencies of inflammatory macrophages in the liver and attenuated liver fibrosis. Therefore, IFNγ-dependent immune responses may disclose checkpoints for future therapeutic intervention strategies in sclerosing cholangitis.
Collapse
MESH Headings
- ATP Binding Cassette Transporter, Subfamily B/genetics
- Animals
- Cells, Cultured
- Cholangitis, Sclerosing/immunology
- Disease Models, Animal
- Humans
- Immunity, Cellular/immunology
- Immunologic Factors/immunology
- Immunologic Factors/pharmacology
- Interferon-gamma/immunology
- Interferon-gamma/pharmacology
- Killer Cells, Natural/immunology
- Killer Cells, Natural/pathology
- Liver/immunology
- Liver/pathology
- Liver Cirrhosis/immunology
- Liver Cirrhosis/pathology
- Liver Cirrhosis/therapy
- Mice
- Mice, Knockout
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/pathology
- ATP-Binding Cassette Sub-Family B Member 4
Collapse
Affiliation(s)
- Gevitha Ravichandran
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Katrin Neumann
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Laura K Berkhout
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Sören Weidemann
- Institute of Pathology, University Medical Center Hamburg-Eppendorf, Germany
| | - Annika E Langeneckert
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Dorothee Schwinge
- Center for Internal Medicine, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Tobias Poch
- Center for Internal Medicine, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Samuel Huber
- Center for Internal Medicine, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Birgit Schiller
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Leonard U Hess
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Annerose E Ziegler
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Karl J Oldhafer
- Department of General Abdominal Surgery, Asklepios Hospital Barmbek, Semmelweis University of Medicine Hamburg, Germany
| | - Roja Barikbin
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Christoph Schramm
- Center for Internal Medicine, I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marcus Altfeld
- Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany; Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gisa Tiegs
- Institute of Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
| |
Collapse
|
105
|
Riggan L, Freud AG, O'Sullivan TE. True Detective: Unraveling Group 1 Innate Lymphocyte Heterogeneity. Trends Immunol 2019; 40:909-921. [PMID: 31500958 PMCID: PMC6823149 DOI: 10.1016/j.it.2019.08.005] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Revised: 08/13/2019] [Accepted: 08/13/2019] [Indexed: 01/26/2023]
Abstract
Innate lymphoid cells (ILCs) consist of a heterogeneous family of lymphocytes that regulate tissue homeostasis and can contribute to pathology in mice and humans. Mammalian group 1 ILCs are defined by the production of interferon (IFN)-γ and the functional dependence on the transcription factor T-bet. While recent studies demonstrate that group 1 ILCs consist of circulating mature natural killer (NK) cells and tissue-resident ILC1s, the functional, phenotypic, and developmental properties that distinguish these two cell lineages are often confusing and difficult to dissect. In this review, we critically evaluate the current knowledge of mammalian group 1 ILC heterogeneity and propose new inclusive nomenclature to clarify the roles of ILC1s and NK cells during homeostasis and disease.
Collapse
Affiliation(s)
- Luke Riggan
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 900953, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA
| | - Aharon G Freud
- Department of Pathology, Comprehensive Cancer Center, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH 43210, USA
| | - Timothy E O'Sullivan
- Department of Microbiology, Immunology, and Molecular Genetics, David Geffen School of Medicine at UCLA, Los Angeles, CA 900953, USA; Molecular Biology Institute, University of California, Los Angeles, Los Angeles, CA 90095, USA.
| |
Collapse
|
106
|
Sag D, Ayyildiz ZO, Gunalp S, Wingender G. The Role of TRAIL/DRs in the Modulation of Immune Cells and Responses. Cancers (Basel) 2019; 11:cancers11101469. [PMID: 31574961 PMCID: PMC6826877 DOI: 10.3390/cancers11101469] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2019] [Revised: 09/09/2019] [Accepted: 09/20/2019] [Indexed: 12/26/2022] Open
Abstract
Expression of TRAIL (tumor necrosis factor–related apoptosis–inducing ligand) by immune cells can lead to the induction of apoptosis in tumor cells. However, it becomes increasingly clear that the interaction of TRAIL and its death receptors (DRs) can also directly impact immune cells and influence immune responses. Here, we review what is known about the role of TRAIL/DRs in immune cells and immune responses in general and in the tumor microenvironment in particular.
Collapse
Affiliation(s)
- Duygu Sag
- Izmir Biomedicine and Genome Center (IBG), 35340 Balcova/Izmir, Turkey.
- Department of Medical Biology, Faculty of Medicine, Dokuz Eylul University, 35340 Balcova/Izmir, Turkey.
- Department of Genome Sciences and Molecular Biotechnology, Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, 35340 Balcova/Izmir, Turkey.
| | - Zeynep Ozge Ayyildiz
- Department of Genome Sciences and Molecular Biotechnology, Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, 35340 Balcova/Izmir, Turkey.
| | - Sinem Gunalp
- Department of Genome Sciences and Molecular Biotechnology, Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, 35340 Balcova/Izmir, Turkey.
| | - Gerhard Wingender
- Izmir Biomedicine and Genome Center (IBG), 35340 Balcova/Izmir, Turkey.
- Department of Biomedicine and Health Technologies, Izmir International Biomedicine and Genome Institute, Dokuz Eylul University, 35340 Balcova/Izmir, Turkey.
| |
Collapse
|
107
|
Bozzano F, Perrone C, Moretta L, De Maria A. NK Cell Precursors in Human Bone Marrow in Health and Inflammation. Front Immunol 2019; 10:2045. [PMID: 31555276 PMCID: PMC6724745 DOI: 10.3389/fimmu.2019.02045] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 08/13/2019] [Indexed: 12/22/2022] Open
Abstract
NK cells are generated from hematopoietic stem cells (HSC) residing in the bone marrow (BM), similar to other blood cells. Development toward mature NK cells occurs largely outside the BM through travel of CD34+ and other progenitor intermediates toward secondary lymphoid organs. The BM harbors multipotent CD34+ common lymphoid progenitors (CLPs) that generate T, B, NK, and Dendritic Cells and are devoid of erythroid, myeloid, and megakaryocytic potential. Over recent years, there has been a quest for single-lineage progenitors predominantly with the objective of manipulation and intervention in mind, which has led to the identification of unipotent NK cell progenitors devoid of other lymphoid lineage potential. Research efforts for the study of lymphopoiesis have almost exclusively concentrated on healthy donor tissues and on repopulation/transplant models. This has led to the widely accepted assumption that lymphopoiesis during disease states reflects the findings of these models. However, compelling evidences in animal models show that inflammation plays a fundamental role in the regulation of HSC maturation and release in the BM niches through several mechanisms including modulation of the CXCL12-CXCR4 expression. Indeed, recent findings during systemic inflammation in patients provide evidence that a so-far overlooked CLP exists in the BM (Lin−CD34+DNAM-1brightCXCR4+) and that it overwhelmingly exits the BM during systemic inflammation. These “inflammatory” precursors have a developmental trajectory toward surprisingly functional NK and T cells as reviewed here and mirror the steady state maintenance of the NK cell pool by CD34+DNAM-1−CXCR4− precursors. Our understanding of NK cell precursor development may benefit from including a distinct “inflammatory” progenitor modeling of lymphoid precursors, allowing rapid deployment of specialized Lin−CD34+DNAM-1brightCXCR4+ -derived resources from the BM.
Collapse
Affiliation(s)
| | - Carola Perrone
- Centro di Eccellenza per la Ricerca Biomedica, Università di Genova, Genoa, Italy
| | | | - Andrea De Maria
- Centro di Eccellenza per la Ricerca Biomedica, Università di Genova, Genoa, Italy.,Clinica Malattie Infettive, Ospedale Policlinico S. Martino IRCCS, Genoa, Italy.,Dipartimento di Scienze Dell Salute, Università Degli Studi di Genova, Genoa, Italy
| |
Collapse
|
108
|
Unique transcriptional and protein-expression signature in human lung tissue-resident NK cells. Nat Commun 2019; 10:3841. [PMID: 31451696 PMCID: PMC6710242 DOI: 10.1038/s41467-019-11632-9] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 07/23/2019] [Indexed: 12/14/2022] Open
Abstract
Human lung tissue-resident NK cells (trNK cells) are likely to play an important role in host responses towards viral infections, inflammatory conditions and cancer. However, detailed insights into these cells are still largely lacking. Here we show, using RNA sequencing and flow cytometry-based analyses, that subsets of human lung CD69+CD16− NK cells display hallmarks of tissue-residency, including high expression of CD49a, CD103, and ZNF683, and reduced expression of SELL, S1PR5, and KLF2/3. CD49a+CD16− NK cells are functionally competent, and produce IFN-γ, TNF, MIP-1β, and GM-CSF. After stimulation with IL-15, they upregulate perforin, granzyme B, and Ki67 to a similar degree as CD49a−CD16− NK cells. Comparing datasets from trNK cells in human lung and bone marrow with tissue-resident memory CD8+ T cells identifies core genes co-regulated either by tissue-residency, cell-type or location. Together, our data indicate that human lung trNK cells have distinct features, likely regulating their function in barrier immunity. Detailed characterizations of human lung tissue-resident natural killer (trNK) cells, which potentially regulate local immune responses, is still lacking. Here the authors show that lung CD69+ CD16– NK cells express tissue-residency markers, produce effector cytokines, and are distinct, feature-wise, from lung CD8+ memory T cells or trNK in other tissues.
Collapse
|
109
|
Gill US, Pallett LJ, Thomas N, Burton AR, Patel AA, Yona S, Kennedy PTF, Maini MK. Fine needle aspirates comprehensively sample intrahepatic immunity. Gut 2019; 68:1493-1503. [PMID: 30487267 PMCID: PMC6691856 DOI: 10.1136/gutjnl-2018-317071] [Citation(s) in RCA: 49] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 09/24/2018] [Accepted: 10/15/2018] [Indexed: 12/11/2022]
Abstract
OBJECTIVE In order to refine new therapeutic strategies in the pipeline for HBV cure, evaluation of virological and immunological changes compartmentalised at the site of infection will be required. We therefore investigated if liver fine needle aspirates (FNAs) could comprehensively sample the local immune landscape in parallel with viable hepatocytes. DESIGN Matched blood, liver biopsy and FNAs from 28 patients with HBV and 15 without viral infection were analysed using 16-colour multiparameter flow cytometry. RESULTS The proportion of CD4 T, CD8 T, Mucosal Associated Invariant T cell (MAIT), Natural Killer (NK) and B cells identified by FNA correlated with that in liver biopsies from the same donors. Populations of Programmed Death-1 (PD-1)hiCD39hi tissue-resident memory CD8 T cells (CD69+CD103+) and liver-resident NK cells (CXCR6+T-betloEomeshi), were identified by both FNA and liver biopsy, and not seen in the blood. Crucially, HBV-specific T cells could be identified by FNAs at similar frequencies to biopsies and enriched compared with blood. FNAs could simultaneously identify populations of myeloid cells and live hepatocytes expressing albumin, Scavenger Receptor class B type 1 (SR-B1), Programmed Death-Ligand 1 (PD-L1), whereas hepatocytes were poorly viable after the processing required for liver biopsies. CONCLUSION We demonstrate for the first time that FNAs identify a range of intrahepatic immune cells including locally resident sentinel HBV-specific T cells and NK cells, together with PD-L1-expressing hepatocytes. In addition, we provide a scoring tool to estimate the extent to which an individual FNA has reliably sampled intrahepatic populations rather than contaminating blood. The broad profiling achieved by this less invasive, rapid technique makes it suitable for longitudinal monitoring of the liver to optimise new therapies for HBV.
Collapse
Affiliation(s)
- Upkar S Gill
- Barts Liver Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Laura J Pallett
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, UK
| | - Niclas Thomas
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, UK
| | - Alice R Burton
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, UK
| | - Amit A Patel
- Division of Medicine, University College London, London, UK
| | - Simon Yona
- Division of Medicine, University College London, London, UK
| | - Patrick T F Kennedy
- Barts Liver Centre, Blizard Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Mala K Maini
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, UK
| |
Collapse
|
110
|
KLRG1+ natural killer cells exert a novel antifibrotic function in chronic hepatitis B. J Hepatol 2019; 71:252-264. [PMID: 30905683 DOI: 10.1016/j.jhep.2019.03.012] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 03/06/2019] [Accepted: 03/07/2019] [Indexed: 12/21/2022]
Abstract
BACKGROUND & AIMS Natural killer (NK) cells are known to exert strong antiviral activity. Killer cell lectin-like receptor subfamily G member 1 (KLRG1) is expressed by terminally differentiated NK cells and KLRG1-expressing lymphocytes are known to expand following chronic viral infections. We aimed to elucidate the previously unknown role of KLRG1 in the pathogenesis of chronic hepatitis B (CHB). METHODS KLRG1+ NK cells were taken from the blood and liver of healthy individuals and patients with CHB. The phenotype and function of these cells was assessed using flow cytometry and in vitro stimulation. RESULTS Patients with CHB had a higher frequency of KLRG1+ NK cells compared to healthy controls (blood 13.4 vs. 2.3%, p <0.0001 and liver 23.4 vs. 2.6%, p <0.01). KLRG1+ NK cells were less responsive to K562 and cytokine stimulation, but demonstrated enhanced cytotoxicity (9.0 vs. 4.8%, p <0.05) and IFN-γ release (8.0 vs. 1.5%, p <0.05) via antibody dependent cellular cytotoxicity compared to their KLRG1- counterparts. KLRG1+ NK cells possessed a mature phenotype, demonstrating stronger cytolytic activity and IFN-γ secretion against hepatic stellate cells (HSCs) than KLRG1- NK cells. Moreover, KLRG1+ NK cells more effectively induced primary HSC apoptosis in a TRAIL-dependent manner. Increased KLRG1+ NK cell frequency in the liver and blood was associated with lower fibrosis stage (F0/F1) in patients with CHB. Finally, the expression of CD44, degranulation and IFN-γ production were all increased in KLRG1+ NK cells following stimulation with osteopontin, the CD44 ligand, suggesting that HSC-derived osteopontin may cause KLRG1+ NK cell activation. CONCLUSIONS KLRG1+ NK cells likely play an antifibrotic role during the natural course of CHB infection. Harnessing this antifibrotic function may provide a novel therapeutic approach to treat liver fibrosis in patients with CHB. LAY SUMMARY Individuals that are chronically infected with hepatitis B virus (HBV) possess an increased number of immune cells, called natural killer (NK) cells expressing the surface marker KLRG1 in the blood and liver. Here, we demonstrate that these specific NK cells are able to kill activated stellate cells in the liver. Because activated stellate cells contribute to liver scarring, i.e. fibrosis, and subsequent liver dysfunction in individuals with chronic HBV infection, KLRG1+ NK cells are a novel immune cell type that can limit liver scarring.
Collapse
|
111
|
Cytomegalovirus Evades TRAIL-Mediated Innate Lymphoid Cell 1 Defenses. J Virol 2019; 93:JVI.00617-19. [PMID: 31142671 DOI: 10.1128/jvi.00617-19] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 05/19/2019] [Indexed: 12/14/2022] Open
Abstract
Cytomegalovirus (CMV) establishes a lifelong infection facilitated, in part, by circumventing immune defenses mediated by tumor necrosis factor (TNF)-family cytokines. An example of this is the mouse CMV (MCMV) m166 protein, which restricts expression of the TNF-related apoptosis-inducing ligand (TRAIL) death receptors, promoting early-phase replication. We show here that replication of an MCMV mutant lacking m166 is also severely attenuated during viral persistence in the salivary glands (SG). Depleting group I innate lymphoid cells (ILCs) or infecting Trail-/- mice completely restored persistent replication of this mutant. Group I ILCs are comprised of two subsets, conventional natural killer cells (cNK) and tissue-resident cells often referred to as innate lymphoid type I cells (ILC1). Using recently identified phenotypic markers to discriminate between these two cell types, their relative expression of TRAIL and gamma interferon (IFN-γ) was assessed during both early and persistent infection. ILC1 were found to be the major TRAIL expressers during both of these infection phases, with cNK expressing very little, indicating that it is ILC1 that curtail replication via TRAIL in the absence of m166-imposed countermeasures. Notably, despite high TRAIL expression by SG-resident ILC1, IFN-γ production by both ILC1 and cNK was minimal at this site of viral persistence. Together these results highlight TRAIL as a key ILC1-utilized effector molecule that can operate in defense against persistent infection at times when other innate control mechanisms may be muted and highlight the importance for the evolution of virus-employed countermeasures.IMPORTANCE Cytomegalovirus (a betaherpesvirus) is a master at manipulating immune responses to promote its lifelong persistence, a result of millions of years of coevolution with its host. Using a one-of-a-kind MCMV mutant unable to restrict expression of the TNF-related apoptosis-inducing ligand death receptors (TRAIL-DR), we show that TRAIL-DR signaling significantly restricts both early and persistent viral replication. Our results also reveal that these defenses are employed by TRAIL-expressing innate lymphoid type I cells (ILC1) but not conventional NK cells. Overall, our results are significant because they show the key importance of viral counterstrategies specifically neutralizing TRAIL effector functions mediated by a specific, tissue-resident subset of group I ILCs.
Collapse
|
112
|
Wang Y, Zhang C. The Roles of Liver-Resident Lymphocytes in Liver Diseases. Front Immunol 2019; 10:1582. [PMID: 31379818 PMCID: PMC6648801 DOI: 10.3389/fimmu.2019.01582] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 06/25/2019] [Indexed: 12/18/2022] Open
Abstract
Tissue-resident lymphocytes usually reside in barrier sites and are involved in innate and adaptive immunity. In recent years, many studies have shown that multiple types of lymphocytes are resident in the liver, including memory CD8+ T (TRM) cells; "unconventional" T cells, such as invariant natural killer T (iNKT) cells, mucosal associated invariant T (MAIT) cells, and γδT cells; innate lymphoid cells (ILCs) such as natural killer (NK) cells and other ILCs. Although diverse types of tissue-resident lymphocytes share similar phenotypes, functional properties, and transcriptional regulation, the unique microenvironment of the liver can reshape their phenotypic and functional characteristics. Liver-resident lymphocytes serve as sentinels and perform immunosurveillance in response to infection and non-infectious insults, and are involved in the maintenance of liver homeostasis. Under the pathological conditions, distinct liver-resident lymphocytes exert protective or pathological effects in the process of various liver diseases. In this review, we highlight the unique properties of liver-resident lymphocytes, and discuss their functional characteristics in different liver diseases.
Collapse
Affiliation(s)
- Yanan Wang
- Institute of Immunopharmacology and Immunotherapy, School of Pharmaceutical Sciences, Shandong University, Jinan, China
| | - Cai Zhang
- Institute of Immunopharmacology and Immunotherapy, School of Pharmaceutical Sciences, Shandong University, Jinan, China
| |
Collapse
|
113
|
Bonanni V, Sciumè G, Santoni A, Bernardini G. Bone Marrow NK Cells: Origin, Distinctive Features, and Requirements for Tissue Localization. Front Immunol 2019; 10:1569. [PMID: 31354722 PMCID: PMC6635729 DOI: 10.3389/fimmu.2019.01569] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Accepted: 06/24/2019] [Indexed: 12/23/2022] Open
Abstract
NK cell maturation is a continuous process, which initiates in the bone marrow and proceeds in peripheral tissues, where NK cells follow distinct differentiation routes. Drastic phenotypic changes are observed during progression from precursors to mature NK cells, including changes of expression and functionalities of several chemoattractant receptors. Upon differentiation, mature NK cells migrate outside the bone marrow; as well, peculiar subsets of NK cells can also home back to or localize in this anatomic compartment to play specific functions. In humans, NK cells with a tissue resident phenotype have been identified in bone marrow, sharing similarities with tissue resident memory CD8+ T cells; while in mouse, long-lived NK cells undergo homeostatic proliferation in this site during viral infections. The mechanisms underlying NK cell subset localization in the bone marrow have only recently started to be investigated, especially in pathological settings such as tumors or infections. In this review, we discuss the phenotype and function of NK cells as well as their requirements for bone marrow maintenance and/or homing.
Collapse
Affiliation(s)
- Valentina Bonanni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Institute Pasteur-Italia, Rome, Italy
| | - Giuseppe Sciumè
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Institute Pasteur-Italia, Rome, Italy
| | - Angela Santoni
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Institute Pasteur-Italia, Rome, Italy
- IRCCS, Neuromed, Isernia, Italy
| | - Giovanni Bernardini
- Department of Molecular Medicine, Sapienza University of Rome, Laboratory Affiliated to Institute Pasteur-Italia, Rome, Italy
| |
Collapse
|
114
|
Wang X, Tian Z, Peng H. Tissue-resident memory-like ILCs: innate counterparts of T RM cells. Protein Cell 2019; 11:85-96. [PMID: 31286412 PMCID: PMC6954904 DOI: 10.1007/s13238-019-0647-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 06/18/2019] [Indexed: 12/16/2022] Open
Abstract
Innate lymphoid cells (ILCs) are defined as lymphocytes that lack RAG recombinase and do not express diverse antigen receptors; however, recent studies have revealed the adaptive features of ILCs. Mouse cytomegalovirus (MCMV)- and cytokine-induced memory natural killer (NK) cells circulate in the blood and are referred to as conventional memory NK cells. In contrast, virus- and hapten-induced memory NK cells, hapten-induced memory ILC1s, and cytokine-induced memory-like ILC2s exhibit long-term residency in the liver or lung, and are referred to as tissue-resident memory ILCs. Considering their similar migration patterns and memory potential, tissue-resident memory ILCs could be regarded as innate counterparts of resident memory T (TRM) cells. Both tissue-resident memory ILCs and TRM cells share common characteristics in terms of dynamics, phenotype, and molecular regulation. The emergence of ILC memory expands the basic biology of ILCs and prompts us to re-examine their functions in disease progression. This review discusses the evidence supporting tissue-resident memory NK cells and other memory ILC subsets, compares them with TRM cells, and highlights key unsolved questions in this emerging field.
Collapse
Affiliation(s)
- Xianwei Wang
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China.,Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China.,Institue of Immunology, University of Science and Technology of China, Hefei, 230027, China
| | - Zhigang Tian
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, 230001, China. .,Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China. .,Institue of Immunology, University of Science and Technology of China, Hefei, 230027, China.
| | - Hui Peng
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, 230027, China. .,Institue of Immunology, University of Science and Technology of China, Hefei, 230027, China.
| |
Collapse
|
115
|
Harmon C, Jameson G, Almuaili D, Houlihan DD, Hoti E, Geoghegan J, Robinson MW, O'Farrelly C. Liver-Derived TGF-β Maintains the Eomes hiTbet lo Phenotype of Liver Resident Natural Killer Cells. Front Immunol 2019; 10:1502. [PMID: 31333651 PMCID: PMC6616151 DOI: 10.3389/fimmu.2019.01502] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 06/17/2019] [Indexed: 12/20/2022] Open
Abstract
The adult human liver hosts a complex repertoire of liver resident and transient natural killer (NK) cell populations with diverse phenotypes and functions. Liver resident NK cells are CD56bright NK cells defined by a unique expression profile of transcription factors and cell surface markers (EomeshiTbetloTIGIT+CD69+CXCR6+CD49e−). Despite extensive characterization of the phenotype of liver resident NK cells, it remains unclear how factors within the liver microenvironment induce and maintain this unique phenotype. In this study, we have explored the factors regulating the phenotype of liver resident NK cells. Isolation of healthy liver resident NK cells from donor liver perfusate and in vitro culture results in the gradual loss of the characteristic Tbetlo phenotype, with the cells increasing Tbet expression significantly at day 7. This phenotypic loss could be halted through the dose-dependent addition of liver conditioned media (LCM), generated from the ex vivo culture of liver biopsies from healthy organ donors. TGF-β, but not IL-10, replicated the Tbet suppressive effects of LCM in both liver resident and peripheral blood NK cells. Furthermore, blocking TGF-β receptor signaling using the inhibitor SB431542, reversed the effect of LCM treatment on liver resident NK cells, causing the loss of tissue resident Eomeshi Tbetlo phenotype. Our findings identify liver-derived TGF-β as an important component of the liver microenvironment, which acts to regulate and maintain the phenotype of liver resident NK cells.
Collapse
Affiliation(s)
- Cathal Harmon
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | | | - Dalal Almuaili
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | | | - Emir Hoti
- Liver Unit, St. Vincent's University Hospital, Dublin, Ireland
| | | | - Mark W Robinson
- School of Medicine, Trinity College Dublin, Dublin, Ireland.,Department of Biology, Maynooth University, Maynooth, Ireland
| | - Cliona O'Farrelly
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.,School of Medicine, Trinity College Dublin, Dublin, Ireland
| |
Collapse
|
116
|
Luci C, Vieira E, Perchet T, Gual P, Golub R. Natural Killer Cells and Type 1 Innate Lymphoid Cells Are New Actors in Non-alcoholic Fatty Liver Disease. Front Immunol 2019; 10:1192. [PMID: 31191550 PMCID: PMC6546848 DOI: 10.3389/fimmu.2019.01192] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 05/10/2019] [Indexed: 12/13/2022] Open
Abstract
Obesity and associated liver diseases (Non Alcoholic Fatty Liver Disease, NAFLD) are a major public health problem with increasing incidence in Western countries (25% of the affected population). These complications develop from a fatty liver (steatosis) to an inflammatory state (steatohepatitis) evolving toward fibrosis and hepatocellular carcinoma. Lipid accumulation in the liver contributes to hepatocyte cell death and promotes liver injury. Local immune cells are activated either by Danger Associated Molecular Patterns (DAMPS) released by dead hepatocytes or by bacterial products (PAMPS) reaching the liver due to increased intestinal permeability. The resulting low-grade inflammatory state promotes the progression of liver complications toward more severe grades. Innate lymphoid cells (ILC) are an heterogeneous family of five subsets including circulating Natural Killer (NK) cells, ILC1, ILC2, ILC3, and lymphocytes tissue-inducer cells (LTi). NK cells and tissue-resident ILCs, mainly located at epithelial surfaces, are prompt to rapidly react to environmental changes to mount appropriate immune responses. Recent works have demonstrated the interplay between ILCs subsets and the environment within metabolic active organs such as liver, adipose tissue and gut during diet-induced obesity leading or not to hepatic abnormalities. Here, we provide an overview of the newly roles of NK cells and ILC1 in metabolism focusing on their contribution to the development of NAFLD. We also discuss recent studies that demonstrate the ability of these two subsets to influence tissue-specific metabolism and how their function and homeostasis are affected during metabolic disorders.
Collapse
Affiliation(s)
- Carmelo Luci
- Université Côte d'Azur, INSERM, Centre Méditerranéen de Médecine Moléculaire, Nice, France
| | - Elodie Vieira
- Université Côte d'Azur, INSERM, Centre Méditerranéen de Médecine Moléculaire, Nice, France
| | - Thibaut Perchet
- Unité Lymphopoïèse, Institut Pasteur, INSERM U1223, Université Paris Diderot, Paris, France
| | - Philippe Gual
- Université Côte d'Azur, INSERM, Centre Méditerranéen de Médecine Moléculaire, Nice, France
| | - Rachel Golub
- Unité Lymphopoïèse, Institut Pasteur, INSERM U1223, Université Paris Diderot, Paris, France
| |
Collapse
|
117
|
Mikulak J, Bruni E, Oriolo F, Di Vito C, Mavilio D. Hepatic Natural Killer Cells: Organ-Specific Sentinels of Liver Immune Homeostasis and Physiopathology. Front Immunol 2019; 10:946. [PMID: 31114585 PMCID: PMC6502999 DOI: 10.3389/fimmu.2019.00946] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Accepted: 04/12/2019] [Indexed: 12/16/2022] Open
Abstract
The liver is considered a preferential tissue for NK cells residency. In humans, almost 50% of all intrahepatic lymphocytes are NK cells that are strongly imprinted in a liver-specific manner and show a broad spectrum of cellular heterogeneity. Hepatic NK (he-NK) cells play key roles in tuning liver immune response in both physiological and pathological conditions. Therefore, there is a pressing need to comprehensively characterize human he-NK cells to better understand the related mechanisms regulating their effector-functions within the dynamic balance between immune-tolerance and immune-surveillance. This is of particular relevance in the liver that is the only solid organ whose parenchyma is constantly challenged on daily basis by millions of foreign antigens drained from the gut. Therefore, the present review summarizes our current knowledge on he-NK cells in the light of the latest discoveries in the field of NK cell biology and clinical relevance.
Collapse
Affiliation(s)
- Joanna Mikulak
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy.,Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Elena Bruni
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy.,Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Ferdinando Oriolo
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy.,Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| | - Clara Di Vito
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy
| | - Domenico Mavilio
- Unit of Clinical and Experimental Immunology, Humanitas Clinical and Research Center, Milan, Italy.,Department of Medical Biotechnologies and Translational Medicine, University of Milan, Milan, Italy
| |
Collapse
|
118
|
A global scientific strategy to cure hepatitis B. Lancet Gastroenterol Hepatol 2019; 4:545-558. [PMID: 30981686 DOI: 10.1016/s2468-1253(19)30119-0] [Citation(s) in RCA: 315] [Impact Index Per Article: 63.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Revised: 03/21/2019] [Accepted: 03/25/2019] [Indexed: 02/06/2023]
Abstract
Chronic hepatitis B virus (HBV) infection is a global public health challenge on the same scale as tuberculosis, HIV, and malaria. The International Coalition to Eliminate HBV (ICE-HBV) is a coalition of experts dedicated to accelerating the discovery of a cure for chronic hepatitis B. Following extensive consultation with more than 50 scientists from across the globe, as well as key stakeholders including people affected by HBV, we have identified gaps in our current knowledge and new strategies and tools that are required to achieve HBV cure. We believe that research must focus on the discovery of interventional strategies that will permanently reduce the number of productively infected cells or permanently silence the covalently closed circular DNA in those cells, and that will stimulate HBV-specific host immune responses which mimic spontaneous resolution of HBV infection. There is also a pressing need for the establishment of repositories of standardised HBV reagents and protocols that can be accessed by all HBV researchers throughout the world. The HBV cure research agenda outlined in this position paper will contribute markedly to the goal of eliminating HBV infection worldwide.
Collapse
|
119
|
Matsuda M, Ono R, Iyoda T, Endo T, Iwasaki M, Tomizawa-Murasawa M, Saito Y, Kaneko A, Shimizu K, Yamada D, Ogonuki N, Watanabe T, Nakayama M, Koseki Y, Kezuka-Shiotani F, Hasegawa T, Yabe H, Kato S, Ogura A, Shultz LD, Ohara O, Taniguchi M, Koseki H, Fujii SI, Ishikawa F. Human NK cell development in hIL-7 and hIL-15 knockin NOD/SCID/IL2rgKO mice. Life Sci Alliance 2019; 2:e201800195. [PMID: 30936185 PMCID: PMC6445396 DOI: 10.26508/lsa.201800195] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 02/21/2019] [Accepted: 02/22/2019] [Indexed: 01/22/2023] Open
Abstract
The immune system encompasses acquired and innate immunity that matures through interaction with microenvironmental components. Cytokines serve as environmental factors that foster functional maturation of immune cells. Although NOD/SCID/IL2rgKO (NSG) humanized mice support investigation of human immunity in vivo, a species barrier between human immune cells and the mouse microenvironment limits human acquired as well as innate immune function. To study the roles of human cytokines in human acquired and innate immune cell development, we created NSG mice expressing hIL-7 and hIL-15. Although hIL-7 alone was not sufficient for supporting human NK cell development in vivo, increased frequencies of human NK cells were confirmed in multiple organs of hIL-7 and hIL-15 double knockin (hIL-7xhIL-15 KI) NSG mice engrafted with human hematopoietic stem cells. hIL-7xhIL-15 KI NSG humanized mice provide a valuable in vivo model to investigate development and function of human NK cells.
Collapse
Affiliation(s)
- Masashi Matsuda
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Rintaro Ono
- Laboratory for Human Disease Models, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Tomonori Iyoda
- Laboratory for Immunotherapy, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Takaho Endo
- Laboratory for Integrative Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Makoto Iwasaki
- Laboratory for Human Disease Models, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Mariko Tomizawa-Murasawa
- Laboratory for Human Disease Models, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Yoriko Saito
- Laboratory for Human Disease Models, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Akiko Kaneko
- Laboratory for Human Disease Models, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Kanako Shimizu
- Laboratory for Immunotherapy, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Daisuke Yamada
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Narumi Ogonuki
- Bioresource Engineering Division, RIKEN BioResource Center, Tsukuba, Japan
| | - Takashi Watanabe
- Laboratory for Integrative Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Manabu Nakayama
- Department of Technology Development, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Yoko Koseki
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Fuyuko Kezuka-Shiotani
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Takanori Hasegawa
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Hiromasa Yabe
- Department of Cell Transplantation and Regenerative Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Shunichi Kato
- Department of Cell Transplantation and Regenerative Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Atsuo Ogura
- Bioresource Engineering Division, RIKEN BioResource Center, Tsukuba, Japan
| | | | - Osamu Ohara
- Laboratory for Integrative Genomics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
- Department of Technology Development, Kazusa DNA Research Institute, Kisarazu, Japan
| | - Masaru Taniguchi
- Laboratory for Immune Regulation, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Haruhiko Koseki
- Laboratory for Developmental Genetics, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Shin-Ichiro Fujii
- Laboratory for Immunotherapy, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| | - Fumihiko Ishikawa
- Laboratory for Human Disease Models, RIKEN Center for Integrative Medical Sciences, Yokohama, Japan
| |
Collapse
|
120
|
Hwang S, Han J, Baek JS, Tak E, Song GW, Lee SG, Jung DH, Park GC, Ahn CS, Kim N. Cytotoxicity of Human Hepatic Intrasinusoidal CD56 bright Natural Killer Cells against Hepatocellular Carcinoma Cells. Int J Mol Sci 2019; 20:ijms20071564. [PMID: 30925759 PMCID: PMC6480584 DOI: 10.3390/ijms20071564] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 03/26/2019] [Accepted: 03/26/2019] [Indexed: 12/12/2022] Open
Abstract
Hepatic intrasinusoidal (HI) natural killer (NK) cells from liver perfusate have unique features that are similar to those of liver-resident NK cells. Previously, we have reported that HI CD56bright NK cells effectively degranulate against SNU398 hepatocellular carcinoma (HCC) cells. Thus, the aim of this study was to further investigate the phenotype and function of HI NK cells. We found that HI CD56bright NK cells degranulated much less to Huh7 cells. HI CD56bright NK cells expressed NKG2D, NKp46, TNF-related apoptosis-inducing ligand (TRAIL), and FAS ligand (FASL) at higher levels than CD56dim cells. SNU398 cells expressed more NKG2D ligands and FAS and less PD-L1 than Huh7 cells. Blockade of NKG2D, TRAIL, and FASL significantly reduced the cytotoxicity of HI NK cells against SNU398 cells, but blockade of PD-L1 did not lead to any significant change. However, HI NK cells produced IFN-γ well in response to Huh7 cells. In conclusion, the cytotoxicity of HI CD56bright NK cells was attributed to the expression of NKG2D, TRAIL, and FASL. The results suggest the possible use of HI NK cells for cancer immunotherapy and prescreening of HCC cells to help identify the most effective NK cell therapy recipients.
Collapse
Affiliation(s)
- Shin Hwang
- Division of Liver Transplantation and Hepatobiliary Surgery, Department of Surgery, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Jaeseok Han
- Department of Convergence Medicine & Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Ji-Seok Baek
- Department of Convergence Medicine & Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Eunyoung Tak
- Department of Convergence Medicine & Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Gi-Won Song
- Division of Liver Transplantation and Hepatobiliary Surgery, Department of Surgery, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Sung-Gyu Lee
- Division of Liver Transplantation and Hepatobiliary Surgery, Department of Surgery, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Dong-Hwan Jung
- Division of Liver Transplantation and Hepatobiliary Surgery, Department of Surgery, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Gil-Chun Park
- Division of Liver Transplantation and Hepatobiliary Surgery, Department of Surgery, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Chul-Soo Ahn
- Division of Liver Transplantation and Hepatobiliary Surgery, Department of Surgery, University of Ulsan College of Medicine, Seoul 05505, Korea.
| | - Nayoung Kim
- Department of Convergence Medicine & Asan Institute for Life Sciences, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea.
| |
Collapse
|
121
|
Angelo LS, Bimler LH, Nikzad R, Aviles-Padilla K, Paust S. CXCR6 + NK Cells in Human Fetal Liver and Spleen Possess Unique Phenotypic and Functional Capabilities. Front Immunol 2019; 10:469. [PMID: 30941128 PMCID: PMC6433986 DOI: 10.3389/fimmu.2019.00469] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 02/21/2019] [Indexed: 12/17/2022] Open
Abstract
Tissue-resident Natural Killer (NK) cells vary in phenotype according to tissue origin, but are typically CD56bright, CXCR6+, and CD69+. NK cells appear very early in fetal development, but little is known about when markers of tissue residency appear during gestation and whether the expression of these markers, most notably the chemokine receptor CXCR6, are associated with differences in functional capability. Using multi-parametric flow cytometry, we interrogated fetal liver and spleen NK cells for the expression of a multitude of extracellular markers associated with NK cell maturation, differentiation, and migration. We analyzed total NK cells from fetal liver and spleen and compared them to their adult liver and spleen counterparts, and peripheral blood (PB) NK. We found that fetal NK cells resemble each other and their adult counterparts more than PB NK. Maturity markers including CD16, CD57, and KIR are lower in fetal NK cells than PB, and markers associated with an immature phenotype are higher in fetal liver and spleen NK cells (NKG2A, CD94, and CD27). However, T-bet/EOMES transcription factor profiles are similar amongst fetal and adult liver and spleen NK cells (T-bet−/EOMES+) but differ from PB NK cells (T-bet+EOMES−). Further, donor-matched fetal liver and spleen NK cells share similar patterns of expression for most markers as a function of gestational age. We also performed functional studies including degranulation, cytotoxicity, and antibody-dependent cellular cytotoxicity (ADCC) assays. Fetal liver and spleen NK cells displayed limited cytotoxic effector function in chromium release assays but produced copious amounts of TNFα and IFNγ, and degranulated efficiently in response to stimulation with PMA/ionomycin. Further, CXCR6+ NK cells in fetal liver and spleen produce more cytokines and degranulate more robustly than their CXCR6− counterparts, even though CXCR6+ NK cells in fetal liver and spleen possess an immature phenotype. Major differences between CXCR6− and + NK cell subsets appear to occur later in development, as a distinct CXCR6+ NK cell phenotype is much more clearly defined in PB. In conclusion, fetal liver and spleen NK cells share similar phenotypes, resemble their adult counterparts, and already possess a distinct CXCR6+ NK cell population with discrete functional capabilities.
Collapse
Affiliation(s)
- Laura S Angelo
- Department of Pediatrics, Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, United States
| | - Lynn H Bimler
- Department of Pediatrics, Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, United States.,The Immunology Graduate Program at Baylor College of Medicine, Houston, TX, United States
| | - Rana Nikzad
- Department of Pediatrics, Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, United States.,Translational Biology and Molecular Medicine Graduate Program at Baylor College of Medicine, Houston, TX, United States.,Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, United States
| | - Kevin Aviles-Padilla
- Department of Pediatrics, Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, United States.,The Integrative Molecular and Biomedical Sciences Graduate Program at Baylor College of Medicine, Houston, TX, United States
| | - Silke Paust
- Department of Pediatrics, Center for Human Immunobiology, Texas Children's Hospital, Houston, TX, United States.,The Immunology Graduate Program at Baylor College of Medicine, Houston, TX, United States.,Translational Biology and Molecular Medicine Graduate Program at Baylor College of Medicine, Houston, TX, United States.,Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA, United States.,The Integrative Molecular and Biomedical Sciences Graduate Program at Baylor College of Medicine, Houston, TX, United States
| |
Collapse
|
122
|
Affiliation(s)
- Upkar S Gill
- Barts Liver Centre, Blizard Institute, Barts and The London, School of Medicine & Dentistry, Queen Mary University of London, London, United Kingdom.
| | - Lucy Golden-Mason
- Department of Medicine, Keck School of Medicine, Research Center for Liver Diseases, University of Southern California, Los Angeles, CA, USA
| |
Collapse
|
123
|
Sagebiel AF, Steinert F, Lunemann S, Körner C, Schreurs RRCE, Altfeld M, Perez D, Reinshagen K, Bunders MJ. Tissue-resident Eomes + NK cells are the major innate lymphoid cell population in human infant intestine. Nat Commun 2019; 10:975. [PMID: 30816112 PMCID: PMC6395753 DOI: 10.1038/s41467-018-08267-7] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Accepted: 12/18/2018] [Indexed: 01/20/2023] Open
Abstract
Innate lymphoid cells (ILC), including natural killer (NK) cells, are implicated in host-defense and tissue-growth. However, the composition and kinetics of NK cells in the intestine during the first year of life, when infants are first broadly exposed to exogenous antigens, are still unclear. Here we show that CD103+ NK cells are the major ILC population in the small intestines of infants. When compared to adult intestinal NK cells, infant intestinal NK cells exhibit a robust effector phenotype, characterized by Eomes, perforin and granzyme B expression, and superior degranulation capacity. Absolute intestinal NK cell numbers decrease gradually during the first year of life, coinciding with an influx of intestinal Eomes+ T cells; by contrast, epithelial NKp44+CD69+ NK cells with less cytotoxic capacity persist in adults. In conclusion, NK cells are abundant in infant intestines, where they can provide effector functions while Eomes+ T cell responses mature. Innate lymphoid cells (ILC), including natural killer (NK) cells, are important innate immune regulators. Here the authors show that, in human infant intestines, CD103+Eomes+ NK cells are the predominant ILC population, but are replaced gradually by Eomes+ T cells, while NKp44+ NK cells persist in adult intestines.
Collapse
Affiliation(s)
- Adrian F Sagebiel
- Department of Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, 20251, Hamburg, Germany
| | - Fenja Steinert
- Department of Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, 20251, Hamburg, Germany
| | - Sebastian Lunemann
- Department of Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, 20251, Hamburg, Germany
| | - Christian Körner
- Department of Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, 20251, Hamburg, Germany
| | - Renée R C E Schreurs
- Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam University Medical Center, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands.,Department of Pediatrics, Emma Children's Hospital, Amsterdam University Medical Center, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands
| | - Marcus Altfeld
- Department of Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, 20251, Hamburg, Germany
| | - Daniel Perez
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Konrad Reinshagen
- Department of Pediatric Surgery, University Medical Center Hamburg-Eppendorf, 20246, Hamburg, Germany
| | - Madeleine J Bunders
- Department of Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, 20251, Hamburg, Germany. .,Department of Experimental Immunology, Amsterdam Infection & Immunity Institute, Amsterdam University Medical Center, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands. .,Department of Pediatrics, Emma Children's Hospital, Amsterdam University Medical Center, University of Amsterdam, 1105 AZ, Amsterdam, The Netherlands.
| |
Collapse
|
124
|
Langeneckert AE, Lunemann S, Martrus G, Salzberger W, Hess LU, Ziegler AE, Poch T, Ravichandran G, Matschl U, Bosse JB, Tiegs G, Fischer L, Koch M, Herkel J, Oldhafer KJ, Schramm C, Altfeld M. CCL21-expression and accumulation of CCR7 + NK cells in livers of patients with primary sclerosing cholangitis. Eur J Immunol 2019; 49:758-769. [PMID: 30785638 DOI: 10.1002/eji.201847965] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Revised: 01/22/2019] [Accepted: 02/19/2019] [Indexed: 12/13/2022]
Abstract
The pathogenesis of primary sclerosing cholangitis (PSC), an autoimmune liver disease, remains unknown. The aim of this study was to characterize peripheral blood and intrahepatic NK cells from patients with PSC. Peripheral blood samples from patients with PSC, other autoimmune liver diseases, and from healthy control individuals were used, as well as liver tissues from PSC patients undergoing liver transplantation. Multiparameter flow cytometry showed that peripheral blood NK cells from PSC patients were significantly enriched for CCR7+ and CXCR3+ cells, and CCR7+ but not CXCR3+ cells were also significantly increased within intrahepatic NK cells. PSC patients undergoing liver transplantation furthermore had significantly higher plasma levels of the CCR7-ligand CCL21, and the CXCR3-ligands CXCL10 and CXCL11, and significantly higher levels of CCL21, but not CXCL10, were detected in liver tissues. CCR7+ and CXCR3+ NK cells from PSC patients exhibited significantly higher functional capacity in peripheral blood, but not liver tissues, consistent with chronic activation of these NK cells in the inflamed liver. These data show that PSC is characterized by intrahepatic CCL21 expression and accumulation of CCR7+ NK cells in the inflamed liver tissue.
Collapse
Affiliation(s)
| | - Sebastian Lunemann
- Research Department of Virus Immunology, Heinrich Pette Institute, Hamburg, Germany
| | - Glòria Martrus
- Research Department of Virus Immunology, Heinrich Pette Institute, Hamburg, Germany
| | - Wilhelm Salzberger
- Research Department of Virus Immunology, Heinrich Pette Institute, Hamburg, Germany
| | - Leonard U Hess
- Research Department of Virus Immunology, Heinrich Pette Institute, Hamburg, Germany
| | - Annerose E Ziegler
- Research Department of Virus Immunology, Heinrich Pette Institute, Hamburg, Germany
| | - Tobias Poch
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gevitha Ravichandran
- Institute for Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Urte Matschl
- Research Department of Virus Immunology, Heinrich Pette Institute, Hamburg, Germany
| | - Jens B Bosse
- Research Department of Structural Cell Biology of Viruses, Heinrich Pette Institute, Hamburg, Germany
| | - Gisa Tiegs
- Institute for Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Lutz Fischer
- Department of Hepatobiliary Surgery and Transplant Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Martina Koch
- Department for General, Visceral and Transplant Surgery, University Hospital Mainz, Germany
| | - Johannes Herkel
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karl J Oldhafer
- Department of General and Abdominal Surgery, Asklepios Hospital Barmbek, Semmelweis University of Medicine Hamburg, Germany
| | - Christoph Schramm
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Marcus Altfeld
- Research Department of Virus Immunology, Heinrich Pette Institute, Hamburg, Germany
| |
Collapse
|
125
|
Lunemann S, Langeneckert AE, Martrus G, Hess LU, Salzberger W, Ziegler AE, Löbl SM, Poch T, Ravichandran G, Sauter J, Schmidt AH, Schramm C, Oldhafer KJ, Altfeld M, Körner C. Human liver-derived CXCR6 + NK cells are predominantly educated through NKG2A and show reduced cytokine production. J Leukoc Biol 2019; 105:1331-1340. [PMID: 30779432 DOI: 10.1002/jlb.1ma1118-428r] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 02/01/2019] [Accepted: 02/10/2019] [Indexed: 01/16/2023] Open
Abstract
NK cells have been implicated to affect the outcome of numerous liver diseases. In particular, members of the killer-cell Ig-like receptor (KIR) family, predominantly expressed by NK cells, have been associated with the outcome of hepatitis C virus infection and clearance of hepatocellular carcinoma. Inhibitory KIRs tune NK cell function through interaction with HLA class I, a process termed education. Nevertheless, the impact of the hepatic environment on NK cell education is incompletely understood. Therefore, we investigated the composition and function of hepatic KIR-expressing NK cells. Matched PBMC and hepatic lymphocytes were isolated from 20 individuals undergoing liver surgery and subsequently phenotypically analyzed for expression of KIRs and markers for tissue residency using flow cytometry. NK cell function was determined by co-culturing NK cells with the target cell line 721.221 and subsequent assessment of CD107a, IFN-γ, and TNF-α expression. Liver-resident CXCR6+ /CD56Bright NK cells lacked KIRs and were predominantly educated through NKG2A, while CXCR6- /CD16+ NK cells expressed KIRs and resembled peripheral blood NK cells. Hepatic NK cells showed lower response rates compared to peripheral blood NK cells; in particular, CXCR6+ NK cells were hyporesponsive to stimulation with target cells. The high proportion of educated NK cells in both subsets indicates the importance of self-inhibitory receptors for the balance between maintenance of self-tolerance and functional readiness. However, the reduced functionality of hepatic NK cells may reflect the impact of the tolerogenic hepatic environment on NK cells irrespective of NK cell education.
Collapse
Affiliation(s)
- Sebastian Lunemann
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Annika E Langeneckert
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Gloria Martrus
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Leonard U Hess
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Wilhelm Salzberger
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Annerose E Ziegler
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Sebastian M Löbl
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Tobias Poch
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Gevitha Ravichandran
- Institute for Experimental Immunology and Hepatology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | | | - Alexander H Schmidt
- DKMS Gemeinnützige GmbH, Tübingen, Germany.,DKMS Life Science Lab GmbH, Dresden, Germany
| | - Christoph Schramm
- I. Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.,Martin Zeitz Center for Rare Diseases, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Karl J Oldhafer
- Department of General and Abdominal Surgery, Asklepios Hospital Barmbek, Semmelweis University of Medicine, Hamburg, Germany
| | - Marcus Altfeld
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Christian Körner
- Research Department Virus Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| |
Collapse
|
126
|
Jin Y, Sun Z, Geng J, Yang L, Song Z, Song H, Wang J, Tang J. IL-21 reinvigorates exhausted natural killer cells in patients with HBV-associated hepatocellular carcinoma in STAT1-depedent pathway. Int Immunopharmacol 2019; 70:1-8. [PMID: 30780004 DOI: 10.1016/j.intimp.2019.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/22/2019] [Accepted: 02/04/2019] [Indexed: 01/10/2023]
Abstract
Hepatocellular carcinoma (HCC) is the most common liver malignancy with dismal prognosis and limited treatment options. Natural killer (NK) cells are critical components of antitumor immunity due to their capacity to eliminate MHC class I-deficient cells. To evaluate the function of NK cells in HCC patients, circulating CD3-CD56+ NK cells were collected from HBV-associated HCC patients and healthy control individuals. Compared to NK cells from healthy controls, NK cells from HCC patients presented functional impairment, characterized by significantly reduced cytotoxicity, degranulation, and cytokine production. Exogenous IL-21 could reinvigorate NK cells from HCC patients, resulting in significantly increased levels of cytotoxicity, degranulation, and cytokine expression. However, IL-21-treated NK cells from HCC patients still presented lower response than IL-21-treated NK cells from healthy controls. IL-21 resulted in increased phosphorylation of both STAT1 and STAT3 in NK cells. Inhibition of STAT1, but not STAT3, significantly reduced IL-21-mediated reinvigoration of NK function. Together, this study demonstrated that NK cells in HBV-associated HCC patients presented functional impairments that could be reverted by IL-21 in a STAT1-mediated mechanism.
Collapse
Affiliation(s)
- Yun Jin
- Department of Hepatobiliary Surgery, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Zhiwei Sun
- Department of Hepatobiliary Surgery, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China
| | - Jiawei Geng
- The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China; Department of Infectious Diseases, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China
| | - Lei Yang
- Department of Neurosurgery, Kunming Children's Hospital, Kunming, Yunnan, China
| | - Zhenyu Song
- DICAT Biomedical Computation Centre, Vancouver, British Columbia, Canada
| | - Haihan Song
- DICAT Biomedical Computation Centre, Vancouver, British Columbia, Canada.
| | - Junfeng Wang
- Department of Hepatobiliary Surgery, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.
| | - Jianzhong Tang
- Department of Hepatobiliary Surgery, The First People's Hospital of Yunnan Province, Kunming, Yunnan, China; The Affiliated Hospital of Kunming University of Science and Technology, Kunming, Yunnan, China.
| |
Collapse
|
127
|
Liver-Resident NK Cells Control Antiviral Activity of Hepatic T Cells via the PD-1-PD-L1 Axis. Immunity 2019; 50:403-417.e4. [DOI: 10.1016/j.immuni.2018.12.024] [Citation(s) in RCA: 89] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2018] [Revised: 10/25/2018] [Accepted: 12/18/2018] [Indexed: 12/12/2022]
|
128
|
Sun H, Sun C, Xiao W, Sun R. Tissue-resident lymphocytes: from adaptive to innate immunity. Cell Mol Immunol 2019; 16:205-215. [PMID: 30635650 DOI: 10.1038/s41423-018-0192-y] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 11/26/2018] [Accepted: 11/26/2018] [Indexed: 12/11/2022] Open
Abstract
Efficient immune responses against invading pathogens often involve coordination between cells from both the innate and adaptive immune systems. For multiple decades, it has been believed that CD8+ memory T cells and natural killer (NK) cells constantly and uniformly recirculate. Only recently was the existence of noncirculating memory T and NK cells that remain resident in the peripheral tissues, termed tissue-resident memory T (TRM) cells and tissue-resident NK (trNK) cells, observed in various organs owing to improved techniques. TRM cells populate a wide range of peripheral organs, including the skin, sensory ganglia, gut, lungs, brain, salivary glands, female reproductive tract, and others. Recent findings have demonstrated the existence of TRM in the secondary lymphoid organs (SLOs) as well, leading to revision of the classic theory that they exist only in peripheral organs. trNK cells have been identified in the uterus, skin, kidney, adipose tissue, and salivary glands. These tissue-resident lymphocytes do not recirculate in the blood or lymphatic system and often adopt a unique phenotype that is distinct from those of circulating immune cells. In this review, we will discuss the recent findings on the tissue residency of both innate and adaptive lymphocytes, with a particular focus on CD8+ memory T cells, and describe some advances regarding unconventional T cells (invariant NKT cells, mucosal-associated invariant T cells (MAIT), and γδ T cells) and the emerging family of trNK cells. Specifically, we will focus on the phenotypes and functions of these subsets and discuss their implications in anti-viral and anti-tumor immunity.
Collapse
Affiliation(s)
- Haoyu Sun
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China. .,Institute of Immunology, University of Science and Technology of China, Hefei, China.
| | - Cheng Sun
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Institute of Immunology, University of Science and Technology of China, Hefei, China
| | - Weihua Xiao
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Institute of Immunology, University of Science and Technology of China, Hefei, China
| | - Rui Sun
- Division of Molecular Medicine, Hefei National Laboratory for Physical Sciences at Microscale, the CAS Key Laboratory of Innate Immunity and Chronic Disease, School of Life Sciences, University of Science and Technology of China, Hefei, China.,Institute of Immunology, University of Science and Technology of China, Hefei, China
| |
Collapse
|
129
|
Isolation, Expansion, and Characterization of Natural Killer Cells and Their Precursors as a Tool to Study Cancer Immunosurveillance. Methods Mol Biol 2019; 1884:87-117. [PMID: 30465197 DOI: 10.1007/978-1-4939-8885-3_6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
This chapter will describe the current methodologies to isolate and expand NK cells from Peripheral Blood (PB) or tissues for "in vitro" studies, including NK cell antitumor immune function. In addition, methods to induce NK cell maturation, differentiation, and expansion from CD34+ precursors will also be described. Finally, it will also be treated the topical issue of the characterization of new functionally and phenotypically defined NK cell subsets.
Collapse
|
130
|
Gill US, Kennedy PTF. The impact of currently licensed therapies on viral and immune responses in chronic hepatitis B: Considerations for future novel therapeutics. J Viral Hepat 2019; 26:4-15. [PMID: 30415490 DOI: 10.1111/jvh.13040] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 10/25/2018] [Indexed: 12/14/2022]
Abstract
Despite the availability of a preventative vaccine, chronic hepatitis B (CHB) remains a global healthcare challenge with the risk of disease progression due to cirrhosis and hepatocellular carcinoma. Although current treatment strategies, interferon and nucleos(t)ide analogues have contributed to reducing morbidity and mortality related to CHB, these therapies are limited in providing functional cure. The treatment paradigm in CHB is rapidly evolving with a number of new agents in the developmental pipeline. However, until novel agents with functional cure capability are available in the clinical setting, there is a pressing need to optimize currently licensed therapies. Here, we discuss current agents used alone and/or in combination strategies along with the impact of these therapies on viral and immune responses. Novel treatment strategies are outlined, and the potential role of current therapies in the employment of pipeline agents is discussed.
Collapse
Affiliation(s)
- Upkar S Gill
- Barts Liver Centre, Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| | - Patrick T F Kennedy
- Barts Liver Centre, Blizard Institute, Barts and The London School of Medicine & Dentistry, Queen Mary University of London, London, UK
| |
Collapse
|
131
|
Rehermann B, Thimme R. Insights From Antiviral Therapy Into Immune Responses to Hepatitis B and C Virus Infection. Gastroenterology 2019; 156:369-383. [PMID: 30267712 PMCID: PMC6340757 DOI: 10.1053/j.gastro.2018.08.061] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/24/2018] [Revised: 08/05/2018] [Accepted: 08/21/2018] [Indexed: 12/17/2022]
Abstract
There are 257 million persons worldwide with chronic hepatitis B virus (HBV) infection, a leading causes of liver cancer. Almost all adults with acute HBV infection have a rapid immune response to the virus, resulting in life-long immunity, but there is no cure for individuals with chronic HBV infection, which they acquire during early life. The mechanisms that drive the progression of HBV through distinct clinical phases to end-stage liver disease are poorly understood. Likewise, it is not clear whether and how immune responses can be modulated to allow control and/or clearance of intrahepatic HBV DNA. We review the innate and adaptive immune responses to acute and chronic HBV infections and responses to antiviral therapy. Comparisons with hepatitis C virus infection provide insights into the reversibility of innate inflammatory responses and the potential for successful therapy to recover virus-specific memory immune responses.
Collapse
Affiliation(s)
- Barbara Rehermann
- Immunology Section, Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Department of Health and Human Services, Bethesda, Maryland.
| | - Robert Thimme
- Klinik für Innere Medizin II, University Hospital Freiburg, Faculty of Medicine, Hugstetter Straße 55, 79106 Freiburg, Germany
| |
Collapse
|
132
|
Harmon C, Robinson MW, Hand F, Almuaili D, Mentor K, Houlihan DD, Hoti E, Lynch L, Geoghegan J, O'Farrelly C. Lactate-Mediated Acidification of Tumor Microenvironment Induces Apoptosis of Liver-Resident NK Cells in Colorectal Liver Metastasis. Cancer Immunol Res 2018; 7:335-346. [PMID: 30563827 DOI: 10.1158/2326-6066.cir-18-0481] [Citation(s) in RCA: 171] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/06/2018] [Accepted: 12/14/2018] [Indexed: 11/16/2022]
Abstract
Colorectal cancer is the third most common malignancy worldwide, with 1.3 million new cases annually. Metastasis to the liver is a leading cause of mortality in these patients. In human liver, metastatic cancer cells must evade populations of liver-resident natural killer (NK) cells with potent cytotoxic capabilities. Here, we investigated how these tumors evade liver NK-cell surveillance. Tissue biopsies were obtained from patients undergoing resection of colorectal liver metastasis (CRLM, n = 18), from the tumor, adjacent tissue, and distal resection margin. The number and phenotype of liver-resident NK cells, at each site, were analyzed by flow cytometry. Tumor-conditioned media (TCM) was generated for cytokine and metabolite quantification and used to treat healthy liver-resident NK cells, isolated from donor liver perfusate during transplantation. Liver-resident NK cells were significantly depleted from CRLM tumors. Healthy liver-resident NK cells exposed to TCM underwent apoptosis in vitro, associated with elevated lactate. Tumor-infiltrating liver-resident NK cells showed signs of mitochondrial stress, which was recapitulated in vitro by treating liver-resident NK cells with lactic acid. Lactic acid induced apoptosis by decreasing the intracellular pH of NK cells, resulting in mitochondrial dysfunction that could be prevented by blocking mitochondrial ROS accumulation. CRLM tumors produced lactate, thus decreasing the pH of the tumor microenvironment. Liver-resident NK cells migrating toward the tumor were unable to regulate intracellular pH resulting in mitochondrial stress and apoptosis. Targeting CRLM metabolism provides a promising therapeutic approach to restoring local NK-cell activity and preventing tumor growth.
Collapse
Affiliation(s)
- Cathal Harmon
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Mark W Robinson
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.,School of Medicine, Trinity College Dublin, Dublin, Ireland
| | - Fiona Hand
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.,Liver Unit, St. Vincent's University Hospital, Dublin, Ireland
| | - Dalal Almuaili
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - Keno Mentor
- Liver Unit, St. Vincent's University Hospital, Dublin, Ireland
| | | | - Emir Hoti
- Liver Unit, St. Vincent's University Hospital, Dublin, Ireland
| | - Lydia Lynch
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.,Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts
| | | | - Cliona O'Farrelly
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland. .,School of Medicine, Trinity College Dublin, Dublin, Ireland
| |
Collapse
|
133
|
Patten DA, Shetty S. More Than Just a Removal Service: Scavenger Receptors in Leukocyte Trafficking. Front Immunol 2018; 9:2904. [PMID: 30631321 PMCID: PMC6315190 DOI: 10.3389/fimmu.2018.02904] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 11/27/2018] [Indexed: 12/15/2022] Open
Abstract
Scavenger receptors are a highly diverse superfamily of proteins which are grouped by their inherent ability to bind and internalize a wide array of structurally diverse ligands which can be either endogenous or exogenous in nature. Consequently, scavenger receptors are known to play important roles in host homeostasis, with common endogenous ligands including apoptotic cells, and modified low density lipoproteins (LDLs); additionally, scavenger receptors are key regulators of inflammatory diseases, such as atherosclerosis. Also, as a consequence of their affinity for a wide range of microbial products, their role in innate immunity is also being increasingly studied. However, in this review, a secondary function of a number of endothelial-expressed scavenger receptors is discussed. There is increasing evidence that some endothelial-expressed scavenger receptors are able to directly bind leukocyte-expressed ligands and subsequently act as adhesion molecules in the trafficking of leukocytes in lymphatic and vascular tissues. Here, we cover the current literature on this alternative role for endothelial-expressed scavenger receptors and also speculate on their therapeutic potential.
Collapse
Affiliation(s)
- Daniel A Patten
- National Institute for Health Research Birmingham Liver Biomedical Research Unit and Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Shishir Shetty
- National Institute for Health Research Birmingham Liver Biomedical Research Unit and Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| |
Collapse
|
134
|
Boeijen LL, van Oord GW, Hou J, van der Heide-Mulder M, Gaggar A, Li L, Fletcher SP, de Knegt RJ, Boonstra A. Gene expression profiling of human tissue-resident immune cells: Comparing blood and liver. J Leukoc Biol 2018; 105:603-608. [PMID: 30480838 PMCID: PMC6924273 DOI: 10.1002/jlb.6ab0718-278r] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Revised: 10/06/2018] [Accepted: 11/01/2018] [Indexed: 12/17/2022] Open
Abstract
In this study, we describe a method to reliably characterize intrahepatic leukocyte populations using flow cytometry and next‐generation RNA sequencing on fresh human liver biopsies. Over the last decades, immune responses of viral hepatitis patients, and of other liver diseases, have been incompletely characterized. Most studies include peripheral blood samples only, foregoing the possibility to investigate the site of inflammation directly. Here, we show that with an optimized protocol that combines cell sorting and RNA sequencing, we can perform a side by side comparison of both intrahepatic and peripheral immune cells. Using core liver biopsies from chronic hepatitis B virus patients, we show that the expression levels of IFN‐stimulated genes and leukocyte‐specific genes are markedly different in the liver compartment as compared to the peripheral blood. These observations emphasize the need to sample the liver directly. The variation of gene expression profiles in these chronic hepatitis B patients was considerable, despite the uniform treatment with nucleotide analogs and absence of liver inflammation in these patients. Finally, we show that this method can provide a detailed characterization of previously undetected liver‐specific effects of novel candidate therapeutic compounds.
Collapse
Affiliation(s)
- Lauke L Boeijen
- Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Gertine W van Oord
- Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Jun Hou
- Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Marieke van der Heide-Mulder
- Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Anuj Gaggar
- Gilead Sciences, Foster City, California, USA
| | - Li Li
- Gilead Sciences, Foster City, California, USA
| | | | - Robert J de Knegt
- Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - André Boonstra
- Department of Gastroenterology and Hepatology, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| |
Collapse
|
135
|
Sung PS, Jang JW. Natural Killer Cell Dysfunction in Hepatocellular Carcinoma: Pathogenesis and Clinical Implications. Int J Mol Sci 2018; 19:ijms19113648. [PMID: 30463262 PMCID: PMC6274919 DOI: 10.3390/ijms19113648] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 11/16/2018] [Accepted: 11/16/2018] [Indexed: 12/14/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is currently the third leading cause of malignancy-related mortalities worldwide. Natural killer (NK) cells are involved in the critical role of first line immunological defense against cancer development. Defects in NK cell functions are recognized as important mechanisms for immune evasion of tumor cells. NK cell function appears to be attenuated in HCC, and many previous reports suggested that NK cells play a critical role in controlling HCC, suggesting that boosting the activity of dysfunctional NK cells can enhance tumor cell killing. However, the detailed mechanisms of NK cell dysfunction in tumor microenvironment of HCC remain largely unknown. A better understanding of the mechanisms of NK cell dysfunction in HCC will help in the NK cell-mediated eradication of cancer cells and prolong patient survival. In this review, we describe the various mechanisms underlying human NK cell dysfunction in HCC. Further, we summarize current advances in the approaches to enhance endogenous NK cell function and in adoptive NK cell therapies, to cure this difficult-to-treat cancer.
Collapse
Affiliation(s)
- Pil Soo Sung
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
- The Catholic Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
| | - Jeong Won Jang
- Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
- The Catholic Liver Research Center, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea.
| |
Collapse
|
136
|
NK cells in liver homeostasis and viral hepatitis. SCIENCE CHINA-LIFE SCIENCES 2018; 61:1477-1485. [PMID: 30421296 DOI: 10.1007/s11427-018-9407-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2018] [Accepted: 08/15/2018] [Indexed: 12/11/2022]
Abstract
As an important member of the innate immune system, natural killer (NK) cells are well known for their rapid and efficient immune responses against infectious agents and tumors. NK cells are widely distributed throughout the body and are particularly enriched within the liver, where they display unique phenotypic and functional properties, playing important roles in various liver diseases. Herein, we present an overview of liver NK cell properties with regard to phenotype, function, and subset composition at steady state, and we also summarize the complex reciprocal interactions between liver NK cells and other cell types within the local environment of the liver. We also provide an overview of recent advances demonstrating the roles of NK cells in viral hepatitis, including a discussion of NK cell altered states and their beneficial versus harmful effects during hepatitis B virus and hepatitis C virus infection.
Collapse
|
137
|
Neely HR, Mazo IB, Gerlach C, von Andrian UH. Is There Natural Killer Cell Memory and Can It Be Harnessed by Vaccination? Natural Killer Cells in Vaccination. Cold Spring Harb Perspect Biol 2018; 10:cshperspect.a029488. [PMID: 29254978 DOI: 10.1101/cshperspect.a029488] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Natural killer (NK) cells have historically been considered to be a part of the innate immune system, exerting a rapid response against pathogens and tumors in an antigen (Ag)-independent manner. However, over the past decade, evidence has accumulated suggesting that at least some NK cells display certain characteristics of adaptive immune cells. Indeed, NK cells can learn and remember encounters with a variety of Ags, including chemical haptens and viruses. Upon rechallenge, memory NK cells mount potent recall responses selectively to those Ags. This phenomenon, traditionally termed "immunological memory," has been reported in mice, nonhuman primates, and even humans and appears to be concentrated in discrete NK cell subsets. Because immunological memory protects against recurrent infections and is the central goal of active vaccination, it is crucial to define the mechanisms and consequences of NK cell memory. Here, we summarize the different kinds of memory responses that have been attributed to specific NK cell subsets and discuss the possibility to harness NK cell memory for vaccination purposes.
Collapse
Affiliation(s)
- Harold R Neely
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts 02115
| | - Irina B Mazo
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts 02115
| | - Carmen Gerlach
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts 02115
| | - Ulrich H von Andrian
- Department of Microbiology and Immunobiology, Harvard Medical School, Boston, Massachusetts 02115.,The Ragon Institute of MGH, MIT and Harvard, Cambridge, Massachusetts 02139
| |
Collapse
|
138
|
Guillerey C. Roles of cytotoxic and helper innate lymphoid cells in cancer. Mamm Genome 2018; 29:777-789. [PMID: 30178306 DOI: 10.1007/s00335-018-9781-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 08/30/2018] [Indexed: 01/08/2023]
Abstract
Natural killer (NK) cells have long been recognized for their anti-cancer activity and are now included in the large family of innate lymphoid cells (ILCs). The discovery of new ILC subsets that, similarly to NK cells, are able to kill tumor cells encourages us to redefine NK cell role in anti-tumor immunity. Conventional NK cells circulate through the blood and screen the body for "stressed" cells. Therefore, NK cells are believed to play a key role in cancer immunosurveillance by the early elimination of cells undergoing malignant transformation. Tissue-resident ILCs might play a similar role since they are ideally located to detect the early signs of malignant transformation in their organ of residence. We are only beginning to appreciate the importance of the whole ILC family in cancer. Confusingly, these cells have been reported to both inhibit and fuel cancer progression and the factors regulating these dual functions remain unclear. Here, I review the recent advances in our understanding of cytotoxic and cytokine-producing helper ILC subsets in cancer.
Collapse
Affiliation(s)
- Camille Guillerey
- Immunology of Cancer and Infection Laboratory, QIMR Berghofer Medical Research Institute, 300 Herston Road, Herston, QLD, 4006, Australia. .,School of Medicine, University of Queensland, Herston, QLD, 4006, Australia.
| |
Collapse
|
139
|
Golsaz-Shirazi F, Amiri MM, Shokri F. Immune function of plasmacytoid dendritic cells, natural killer cells, and their crosstalk in HBV infection. Rev Med Virol 2018; 28:e2007. [PMID: 30175481 DOI: 10.1002/rmv.2007] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 06/25/2018] [Accepted: 07/16/2018] [Indexed: 12/13/2022]
Abstract
Chronic hepatitis B virus infection is a major health problem, with over 245 million chronic carriers worldwide. This persistent infection is thought to be associated with inefficient innate and adaptive immune responses. Natural killer cells (NK cells) and plasmacytoid dendritic cells (pDCs) are the major innate immune cells which respond to viral infection at the early phase and are considered major components of the antiviral immune response. In this review, we summarize recent findings regarding the role of NK cells, pDCs, and their cross-talk in HBV infection and its chronicity. Although the data regarding the biological function of pDCs and NK cells in HBV infection is still controversial, many studies show that in chronic HBV infection, the cytotoxicity of NK cells is retained, while their capacity to secrete cytokines is strongly impaired. In addition, interferon-α production by pDCs is impaired during chronic HBV infection, and the virus interferes with pDC-NK cell interaction.
Collapse
Affiliation(s)
- Forough Golsaz-Shirazi
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Mehdi Amiri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Fazel Shokri
- Department of Immunology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
- Monoclonal Antibody Research Center, Avicenna Research Institute, Tehran, Iran
| |
Collapse
|
140
|
Hunter S, Willcox CR, Davey MS, Kasatskaya SA, Jeffery HC, Chudakov DM, Oo YH, Willcox BE. Human liver infiltrating γδ T cells are composed of clonally expanded circulating and tissue-resident populations. J Hepatol 2018; 69:654-665. [PMID: 29758330 PMCID: PMC6089840 DOI: 10.1016/j.jhep.2018.05.007] [Citation(s) in RCA: 93] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2017] [Revised: 03/27/2018] [Accepted: 05/02/2018] [Indexed: 02/06/2023]
Abstract
BACKGROUND & AIMS γδ T cells comprise a substantial proportion of tissue-associated lymphocytes. However, our current understanding of human γδ T cells is primarily based on peripheral blood subsets, while the immunobiology of tissue-associated subsets remains largely unclear. Therefore, we aimed to elucidate the T cell receptor (TCR) diversity, immunophenotype and function of γδ T cells in the human liver. METHODS We characterised the TCR repertoire, immunophenotype and function of human liver infiltrating γδ T cells, by TCR sequencing analysis, flow cytometry, in situ hybridisation and immunohistochemistry. We focussed on the predominant tissue-associated Vδ2- γδ subset, which is implicated in liver immunopathology. RESULTS Intrahepatic Vδ2- γδ T cells were highly clonally focussed, with single expanded clonotypes featuring complex, private TCR rearrangements frequently dominating the compartment. Such T cells were predominantly CD27lo/- effector lymphocytes, whereas naïve CD27hi, TCR-diverse populations present in matched blood were generally absent in the liver. Furthermore, while a CD45RAhi Vδ2- γδ effector subset present in both liver and peripheral blood contained overlapping TCR clonotypes, the liver Vδ2- γδ T cell pool also included a phenotypically distinct CD45RAlo effector compartment that was enriched for expression of the tissue tropism marker CD69, the hepatic homing chemokine receptors CXCR3 and CXCR6, and liver-restricted TCR clonotypes, suggestive of intrahepatic tissue residency. Liver infiltrating Vδ2- γδ cells were capable of polyfunctional cytokine secretion, and unlike peripheral blood subsets, were responsive to both TCR and innate stimuli. CONCLUSION These findings suggest that the ability of Vδ2- γδ T cells to undergo clonotypic expansion and differentiation is crucial in permitting access to solid tissues, such as the liver, which results in functionally distinct peripheral and liver-resident memory γδ T cell subsets. They also highlight the inherent functional plasticity within the Vδ2- γδ T cell compartment and provide information that could be used for the design of cellular therapies that suppress liver inflammation or combat liver cancer. LAY SUMMARY γδ T cells are frequently enriched in many solid tissues, however the immunobiology of such tissue-associated subsets in humans has remained unclear. We show that intrahepatic γδ T cells are enriched for clonally expanded effector T cells, whereas naïve γδ T cells are largely excluded. Moreover, whereas a distinct proportion of circulating T cell clonotypes was present in both the liver tissue and peripheral blood, a functionally and clonotypically distinct population of liver-resident γδ T cells was also evident. Our findings suggest that factors triggering γδ T cell clonal selection and differentiation, such as infection, can drive enrichment of γδ T cells into liver tissue, allowing the development of functionally distinct tissue-restricted memory populations specialised in local hepatic immunosurveillance.
Collapse
Affiliation(s)
- Stuart Hunter
- Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom,Centre for Liver Research and National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, Institute of Immunology & Immunotherapy, University of Birmingham, United Kingdom
| | - Carrie R. Willcox
- Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Martin S. Davey
- Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom
| | - Sofya A. Kasatskaya
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science, Moscow, Russia,Skolkovo Institute of Science and Technology, Moscow, Russia
| | - Hannah C. Jeffery
- Centre for Liver Research and National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, Institute of Immunology & Immunotherapy, University of Birmingham, United Kingdom
| | - Dmitriy M. Chudakov
- Shemyakin-Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science, Moscow, Russia,Skolkovo Institute of Science and Technology, Moscow, Russia,Central European Institute of Technology, Masaryk University, Brno, Czech Republic,Pirogov Russian National Research Medical University, Moscow, Russia
| | - Ye H. Oo
- Centre for Liver Research and National Institute for Health Research (NIHR) Birmingham Biomedical Research Centre, Institute of Immunology & Immunotherapy, University of Birmingham, United Kingdom,University Hospital of Birmingham NHS Foundation Trust, United Kingdom,Corresponding authors. Addresses: Centre for Liver Research and NIHR Birmingham Biomedical Research Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, United Kingdom. Tel.: +44 (0) 121 414 2246; fax: +44 (0) 121 415 8701 (Y. H. Oo), or Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, United Kingdom. Tel.: +44 0121 414 9533; fax: +44 0121 414 4486 (B. Willcox).
| | - Benjamin E. Willcox
- Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom,Corresponding authors. Addresses: Centre for Liver Research and NIHR Birmingham Biomedical Research Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, United Kingdom. Tel.: +44 (0) 121 414 2246; fax: +44 (0) 121 415 8701 (Y. H. Oo), or Cancer Immunology and Immunotherapy Centre, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham B15 2TT, United Kingdom. Tel.: +44 0121 414 9533; fax: +44 0121 414 4486 (B. Willcox).
| |
Collapse
|
141
|
Nixon BG, Li MO. Tissue-Resident Cytolytic Innate Lymphocytes in Cancer. THE JOURNAL OF IMMUNOLOGY 2018; 200:408-414. [PMID: 29311382 DOI: 10.4049/jimmunol.1701124] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 10/19/2017] [Indexed: 12/24/2022]
Abstract
Innate lymphoid cells (ILCs) are critical components of tissues in the body, providing a first line of defense against challenges to host integrity. In contrast to strictly cytokine-producing helper ILCs, resident innate lymphocyte populations with cytolytic potential have been identified in multiple tissues in both mouse and human. These cells express the transcription factor Tbet, NK cell receptors, granzymes, perforin, and death receptors, and can directly kill tumor cells. Signals in the tumor microenvironment may promote this response, including the cytokine IL-15 and stress-associated ligands for activating NK receptors. Although there is evidence that these cells are tissue and tumor resident, their lineage remains unclear. Whether they are derived from the NK or helper ILC lineages or represent a third differentiation pathway remains to be determined. A better understanding of their lineage will help clarify their regulation and function in the context of antitumor immunity.
Collapse
Affiliation(s)
- Briana G Nixon
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065; and.,Graduate Program in Immunology and Microbial Pathogenesis, Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY 10065
| | - Ming O Li
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065; and
| |
Collapse
|
142
|
Melsen JE, Lugthart G, Vervat C, Kielbasa SM, van der Zeeuw SAJ, Buermans HPJ, van Ostaijen-Ten Dam MM, Lankester AC, Schilham MW. Human Bone Marrow-Resident Natural Killer Cells Have a Unique Transcriptional Profile and Resemble Resident Memory CD8 + T Cells. Front Immunol 2018; 9:1829. [PMID: 30186282 PMCID: PMC6113396 DOI: 10.3389/fimmu.2018.01829] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 07/24/2018] [Indexed: 01/09/2023] Open
Abstract
Human lymphoid tissues harbor, in addition to CD56bright and CD56dim natural killer (NK) cells, a third NK cell population: CD69+CXCR6+ lymphoid tissue (lt)NK cells. The function and development of ltNK cells remain poorly understood. In this study, we performed RNA sequencing on the three NK cell populations derived from bone marrow (BM) and blood. In ltNK cells, 1,353 genes were differentially expressed compared to circulating NK cells. Several molecules involved in migration were downregulated in ltNK cells: S1PR1, SELPLG and CD62L. By flow cytometry we confirmed that the expression profile of adhesion molecules (CD49e−, CD29low, CD81high, CD62L−, CD11c−) and transcription factors (Eomeshigh, Tbetlow) of ltNK cells differed from their circulating counterparts. LtNK cells were characterized by enhanced expression of inhibitory receptors TIGIT and CD96 and low expression of DNAM1 and cytolytic molecules (GZMB, GZMH, GNLY). Their proliferative capacity was reduced compared to the circulating NK cells. By performing gene set enrichment analysis, we identified DUSP6 and EGR2 as potential regulators of the ltNK cell transcriptome. Remarkably, comparison of the ltNK cell transcriptome to the published human spleen-resident memory CD8+ T (Trm) cell transcriptome revealed an overlapping gene signature. Moreover, the phenotypic profile of ltNK cells resembled that of CD8+ Trm cells in BM. Together, we provide transcriptional and phenotypic data that clearly distinguish ltNK cells from both the CD56bright and CD56dim NK cells and substantiate the view that ltNK cells are tissue-resident cells, which are functionally restrained in killing and have low proliferative activity.
Collapse
Affiliation(s)
- Janine E Melsen
- Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| | - Gertjan Lugthart
- Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| | - Carly Vervat
- Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| | - Szymon M Kielbasa
- Department of Biomedical Data Sciences, Leiden University Medical Center, Leiden, Netherlands
| | | | - Henk P J Buermans
- Department of Human Genetics, Leiden Genome Technology Center, Leiden University Medical Center, Leiden, Netherlands
| | | | - Arjan C Lankester
- Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| | - Marco W Schilham
- Department of Pediatrics, Leiden University Medical Center, Leiden, Netherlands
| |
Collapse
|
143
|
Salzberger W, Martrus G, Bachmann K, Goebels H, Heß L, Koch M, Langeneckert A, Lunemann S, Oldhafer KJ, Pfeifer C, Poch T, Richert L, Schramm C, Wahib R, Bunders MJ, Altfeld M. Tissue-resident NK cells differ in their expression profile of the nutrient transporters Glut1, CD98 and CD71. PLoS One 2018; 13:e0201170. [PMID: 30028872 PMCID: PMC6054388 DOI: 10.1371/journal.pone.0201170] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 07/10/2018] [Indexed: 12/20/2022] Open
Abstract
Metabolism is a critical basis for immune cell functionality. It was recently shown that NK cell subsets from peripheral blood modulate their expression of nutrient receptors following cytokine stimulation, demonstrating that NK cells can adjust to changes in metabolic requirements. As nutrient availability in blood and tissues can significantly differ, we examined NK cells isolated from paired blood-liver and blood-spleen samples and compared expression of the nutrient transporters Glut1, CD98 and CD71. CD56bright tissue-resident (CXCR6+) NK cells derived from livers and spleens expressed lower levels of Glut1 but higher levels of the amino acid transporter CD98 following stimulation than CD56bright NK cells from peripheral blood. In line with that, CD56dim NK cells, which constitute the main NK cell population in the peripheral blood, expressed higher levels of Glut1 and lower levels of CD98 and CD71 compared to liver CD56bright NK cells. Our results show that NK cells from peripheral blood differ from liver- and spleen-resident NK cells in the expression profile of nutrient transporters, consistent with a cell-adaptation to the different nutritional environment in these compartments.
Collapse
Affiliation(s)
- Wilhelm Salzberger
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Gloria Martrus
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Kai Bachmann
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg, Hamburg, Germany
| | - Hanna Goebels
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Leonard Heß
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Martina Koch
- Department of Hepatobiliary and Transplant Surgery, University Medical Center Hamburg, Hamburg, Germany
| | - Annika Langeneckert
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Sebastian Lunemann
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Karl J. Oldhafer
- Department of General & Abdominal Surgery, Asklepios Hospital Barmbek, Semmelweis University of Medicine, Hamburg, Germany
| | - Caroline Pfeifer
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Tobias Poch
- First Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Laura Richert
- INSERM U1219, INRIA SISTM, Bordeaux University, Bordeaux, France
| | - Christoph Schramm
- First Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
- Martin Zeitz Centre for Rare Diseases, University Medical Center Hamburg, Hamburg, Germany
| | - Ramez Wahib
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg, Hamburg, Germany
| | - Madeleine J. Bunders
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
| | - Marcus Altfeld
- Department of Viral Immunology, Heinrich Pette Institute, Leibniz Institute for Experimental Virology, Hamburg, Germany
- * E-mail:
| |
Collapse
|
144
|
Peripheral Tissue Chemokines: Homeostatic Control of Immune Surveillance T Cells. Trends Immunol 2018; 39:734-747. [PMID: 30001872 DOI: 10.1016/j.it.2018.06.003] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 05/18/2018] [Accepted: 06/12/2018] [Indexed: 12/15/2022]
Abstract
Cellular immunity is governed by a complex network of migratory cues that enable appropriate immune cell responses in a timely and spatially controlled fashion. This review focuses on the chemokines and their receptors regulating the steady-state localisation of immune cells within healthy peripheral tissues. Steady-state immune cell traffic is not well understood but is thought to involve constitutive (homeostatic) chemokines. The recent discovery of tissue-resident memory T cells (TRM cells) illustrates our need for understanding how chemokines control immune cell mobilisation and/or retention. These studies will be critical to unravel novel pathways for preserving tissue function (aging) and preventing tissue disease (vaccination).
Collapse
|
145
|
Easom NJW, Stegmann KA, Swadling L, Pallett LJ, Burton AR, Odera D, Schmidt N, Huang WC, Fusai G, Davidson B, Maini MK. IL-15 Overcomes Hepatocellular Carcinoma-Induced NK Cell Dysfunction. Front Immunol 2018; 9:1009. [PMID: 29867983 PMCID: PMC5954038 DOI: 10.3389/fimmu.2018.01009] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 04/23/2018] [Indexed: 12/23/2022] Open
Abstract
NK cells have potent antitumor capacity. They are enriched in the human liver, with a large subset specialized for tissue-residence. The potential for liver-resident versus liver-infiltrating NK cells to populate, and exert antitumor functions in, human liver tumors has not been studied. We examined liver-resident and liver-infiltrating NK cells directly ex vivo from human hepatocellular carcinomas (HCCs) and liver colorectal (CRC) metastases, compared with matched uninvolved liver tissue. We found that NK cells were highly prevalent in both HCC and liver CRC metastases, although at lower frequencies than unaffected liver. Up to 79% of intratumoral NK cells had the CXCR6+CD69+ liver-resident phenotype. Direct ex vivo staining showed that liver-resident NK cells had increased NKG2D expression compared to their non-resident counterparts, but both subsets had NKG2D downregulation within liver tumors compared to uninvolved liver. Proliferation of intratumoral NK cells (identified by Ki67) was selectively impaired in those with the most marked NKG2D downregulation. Human liver tumor NK cells were functionally impaired, with reduced capacity for cytotoxicity and production of cytokines, even when compared to the hypo-functional tissue-resident NK cells in unaffected liver. Coculture of human liver NK cells with the human hepatoma cell line PLC/PRF/5, or with autologous HCC, recapitulated the defects observed in NK cells extracted from tumors, with downmodulation of NKG2D, cytokine production, and target cell cytotoxicity. Transwells and conditioned media confirmed a requirement for cell contact with PLC/PRF/5 to impose NK cell inhibition. IL-15 was able to recover antitumor functionality in NK cells inhibited by in vitro exposure to HCC cell lines or extracted directly from HCC. In summary, our data suggest that the impaired antitumor function of local NK cells reflects a combination of the tolerogenic features inherent to liver-resident NK cells together with additional contact-dependent inhibition imposed by HCC itself. The demonstration that IL-15 can recover hepatic NK cell function following tumor exposure supports its inclusion in immunotherapy strategies.
Collapse
Affiliation(s)
- Nicholas J W Easom
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom
| | - Kerstin A Stegmann
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom
| | - Leo Swadling
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom
| | - Laura J Pallett
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom
| | - Alice R Burton
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom
| | - Dennis Odera
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom
| | - Nathalie Schmidt
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom
| | - Wei-Chen Huang
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom.,Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Giuseppe Fusai
- Centre for Digestive Diseases, Institute of Liver and Digestive Health, University College London, London, United Kingdom
| | - Brian Davidson
- Centre for Digestive Diseases, Institute of Liver and Digestive Health, University College London, London, United Kingdom
| | - Mala K Maini
- Division of Infection and Immunity, Institute of Immunity and Transplantation, University College London, London, United Kingdom
| |
Collapse
|
146
|
Zheng M, Sun H, Tian Z. Natural killer cells in liver diseases. Front Med 2018; 12:269-279. [PMID: 29675689 DOI: 10.1007/s11684-018-0621-4] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2017] [Accepted: 12/06/2017] [Indexed: 12/12/2022]
Abstract
The liver has been characterized as a frontline lymphoid organ with complex immunological features such as liver immunity and liver tolerance. Liver tolerance plays an important role in liver diseases including acute inflammation, chronic infection, autoimmune disease, and tumors. The liver contains a large proportion of natural killer (NK) cells, which exhibit heterogeneity in phenotypic and functional characteristics. NK cell activation, well known for its role in the immune surveillance against tumor and pathogen-infected cells, depends on the balance between numerous activating and inhibitory signals. In addition to the innate direct "killer" functions, NK cell activity contributes to regulate innate and adaptive immunity (helper or regulator). Under the setting of liver diseases, NK cells are of great importance for stimulating or inhibiting immune responses, leading to either immune activation or immune tolerance. Here, we focus on the relationship between NK cell biology, such as their phenotypic features and functional diversity, and liver diseases.
Collapse
Affiliation(s)
- Meijuan Zheng
- Department of Clinical Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
| | - Haoyu Sun
- Institute of Immunology, Key Laboratory of Innate Immunity and Chronic Disease of Chinese Academy of Sciences, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, 230027, China
| | - Zhigang Tian
- Institute of Immunology, Key Laboratory of Innate Immunity and Chronic Disease of Chinese Academy of Sciences, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, 230027, China.,Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, 310003, China
| |
Collapse
|
147
|
Kumar N, Khakoo SI. Hepatocellular carcinoma: Prospects for natural killer cell immunotherapy. HLA 2018; 92:3-11. [PMID: 29667374 DOI: 10.1111/tan.13275] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 04/11/2018] [Accepted: 04/12/2018] [Indexed: 12/12/2022]
Abstract
Liver disease is a growing cause of death in the United Kingdom and the incidence of hepatocellular carcinoma (HCC) is rising (http://www.cancerresearchuk.org/). The combination of an immunosuppressive environment within the liver and suboptimal host anti-tumour immune responses may account for the poor survival outcome of HCC. Understanding how tumours evade immune recognition coupled with new insights into the unique immunological environment within the liver will be critical to developing liver-specific immunotherapies.
Collapse
Affiliation(s)
- N Kumar
- Section of Hepatology, Department of Surgery and Cancer, Faculty of Medicine, Imperial College London, London, UK
| | - S I Khakoo
- Department of Clinical and Experimental Sciences, Faculty of Medicine, Southampton General Hospital, University of Southampton, Southampton, UK
| |
Collapse
|
148
|
Gill US, Pallett LJ, Kennedy PTF, Maini MK. Liver sampling: a vital window into HBV pathogenesis on the path to functional cure. Gut 2018; 67:767-775. [PMID: 29331944 PMCID: PMC6058064 DOI: 10.1136/gutjnl-2017-314873] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 11/29/2017] [Accepted: 12/07/2017] [Indexed: 12/12/2022]
Abstract
In order to optimally refine the multiple emerging drug targets for hepatitis B virus (HBV), it is vital to evaluate virological and immunological changes at the site of infection. Traditionally liver biopsy has been the mainstay of HBV disease assessment, but with the emergence of non-invasive markers of liver fibrosis, there has been a move away from tissue sampling. Here we argue that liver biopsy remains an important tool, not only for the clinical assessment of HBV but also for research progress and evaluation of novel agents. The importance of liver sampling has been underscored by recent findings of specialised subsets of tissue-resident immune subsets capable of efficient pathogen surveillance, compartmentalised in the liver and not sampled in the blood. Importantly, the assessment of virological parameters, such as cccDNA quantitation, also requires access to liver tissue. We discuss strategies to maximise information obtained from the site of infection and disease pathology. Fine needle aspirates of the liver may allow longitudinal sampling of the local virus/host landscape. The careful utilisation of liver tissue and aspirates in conjunction with blood will provide critical information in the assessment of new therapeutics for the functional cure of HBV.
Collapse
Affiliation(s)
- Upkar S Gill
- Department of Hepatology, Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | | | - Patrick T F Kennedy
- Department of Hepatology, Centre for Immunobiology, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, UK
| | - Mala K Maini
- Division of Infection and Immunity, UCL, London, UK
| |
Collapse
|
149
|
Kurioka A, Klenerman P, Willberg CB. Innate-like CD8+ T-cells and NK cells: converging functions and phenotypes. Immunology 2018; 154:547-556. [PMID: 29542114 PMCID: PMC6050209 DOI: 10.1111/imm.12925] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/15/2018] [Accepted: 02/09/2018] [Indexed: 12/15/2022] Open
Abstract
New data in the worlds of both innate-like CD8+ T-cells and natural killer (NK) cells have, in parallel, clarified some of the phenotypes of these cells and also their associated functions. While these cells are typically viewed entirely separately, the emerging innate functions of T-cells and, similarly, the adaptive functions of NK cells suggest that many behaviours can be considered in parallel. In this review we compare the innate functions of CD8+ T-cells (especially mucosal-associated invariant T-cells) and those of NK cells, and how these relate to expression of phenotypic markers, especially CD161 and CD56.
Collapse
Affiliation(s)
- Ayako Kurioka
- Nuffield Department of MedicinePeter Medawar Building for Pathogen ResearchUniversity of OxfordOxfordUK
- NIHR Biomedical Research CentreTranslational Gastroenterology UnitJohn Radcliffe HospitalOxfordUK
| | - Paul Klenerman
- Nuffield Department of MedicinePeter Medawar Building for Pathogen ResearchUniversity of OxfordOxfordUK
- NIHR Biomedical Research CentreTranslational Gastroenterology UnitJohn Radcliffe HospitalOxfordUK
| | - Christian B. Willberg
- Nuffield Department of MedicinePeter Medawar Building for Pathogen ResearchUniversity of OxfordOxfordUK
- NIHR Biomedical Research CentreTranslational Gastroenterology UnitJohn Radcliffe HospitalOxfordUK
| |
Collapse
|
150
|
Hydes T, Noll A, Salinas‐Riester G, Abuhilal M, Armstrong T, Hamady Z, Primrose J, Takhar A, Walter L, Khakoo SI. IL-12 and IL-15 induce the expression of CXCR6 and CD49a on peripheral natural killer cells. Immun Inflamm Dis 2018; 6:34-46. [PMID: 28952190 PMCID: PMC5818449 DOI: 10.1002/iid3.190] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 06/23/2017] [Accepted: 07/11/2017] [Indexed: 12/18/2022] Open
Abstract
INTRODUCTION Murine hepatic NK cells exhibit adaptive features, with liver-specific adhesion molecules CXCR6 and CD49a acting as surface markers. METHODS We investigated human liver-resident CXCR6+ and CD49a+ NK cells using RNA sequencing, flow cytometry, and functional analysis. We further assessed the role of cytokines in generating NK cells with these phenotypes from the peripheral blood. RESULTS Hepatic CD49a+ NK cells could be induced using cytokines and produce high quantities of IFNγ and TNFα, in contrast to hepatic CXCR6+ NK cells. RNA sequencing of liver-resident CXCR6+ NK cells confirmed a tolerant immature phenotype with reduced expression of markers associated with maturity and cytotoxicity. Liver-resident double-positive CXCR6 + CD49a+ hepatic NK cells are immature but maintain high expression of Th1 cytokines as observed for single-positive CD49a+ NK cells. We show that stimulation with activating cytokines can readily induce upregulation of both CD49a and CXCR6 on NK cells in the peripheral blood. In particular, IL-12 and IL-15 can generate CXCR6 + CD49a+ NK cells in vitro from NK cells isolated from the peripheral blood, with comparable phenotypic and functional features to liver-resident CD49a+ NK cells, including enhanced IFNγ and NKG2C expression. CONCLUSION IL-12 and IL-15 may be key for generating NK cells with a tissue-homing phenotype and strong Th1 cytokine profile in the blood, and links peripheral activation of NK cells with tissue-homing. These findings may have important therapeutic implications for immunotherapy of chronic liver disease.
Collapse
Affiliation(s)
- Theresa Hydes
- Clinical and Experimental Sciences, Faculty of MedicineUniversity of SouthamptonSouthamptonUK
| | - Angela Noll
- Primate Genetics LaboratoryGerman Primate CentreGöttingenGermany
| | - Gabriela Salinas‐Riester
- Transcriptome and Genome Analysis Laboratory GöttingenUniversity Medical Centre GöttingenGermany
| | - Mohammed Abuhilal
- Hepatobiliary SurgeryUniversity Hospital Southampton NHS Foundation TrustSouthamptonUK
| | - Thomas Armstrong
- Hepatobiliary SurgeryUniversity Hospital Southampton NHS Foundation TrustSouthamptonUK
| | - Zaed Hamady
- Hepatobiliary SurgeryUniversity Hospital Southampton NHS Foundation TrustSouthamptonUK
| | - John Primrose
- Hepatobiliary SurgeryUniversity Hospital Southampton NHS Foundation TrustSouthamptonUK
| | - Arjun Takhar
- Hepatobiliary SurgeryUniversity Hospital Southampton NHS Foundation TrustSouthamptonUK
| | - Lutz Walter
- Primate Genetics LaboratoryGerman Primate CentreGöttingenGermany
| | - Salim I. Khakoo
- Clinical and Experimental Sciences, Faculty of MedicineUniversity of SouthamptonSouthamptonUK
| |
Collapse
|