101
|
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]
|
102
|
Nath PR, Gangaplara A, Pal-Nath D, Mandal A, Maric D, Sipes JM, Cam M, Shevach EM, Roberts DD. CD47 Expression in Natural Killer Cells Regulates Homeostasis and Modulates Immune Response to Lymphocytic Choriomeningitis Virus. Front Immunol 2018; 9:2985. [PMID: 30643501 PMCID: PMC6320676 DOI: 10.3389/fimmu.2018.02985] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2018] [Accepted: 12/04/2018] [Indexed: 01/08/2023] Open
Abstract
CD47 is a ubiquitous cell surface receptor that directly regulates T cell immunity by interacting with its inhibitory ligand thrombospondin-1 and limits clearance of cells by phagocytes that express its counter-receptor signal-regulatory protein-α. Murine natural killer (NK) cells express higher levels of CD47 than other lymphocytes, but the role of CD47 in regulating NK cell homeostasis and immune function remains unclear. Cd47 -/- mice exhibited depletion of NK precursors in bone marrow, consistent with the antiphagocytic function of CD47. In contrast, antisense CD47 knockdown or gene disruption resulted in a dose dependent accumulation of immature and mature NK cells in spleen. Mature Cd47 -/- NK cells exhibited increased expression of NK effector and interferon gene signatures and an increased proliferative response to interleukin-15 in vitro. Cd47 -/- mice showed no defect in their early response to acute Armstrong lymphocytic choriomeningitis virus (LCMV) infection but were moderately impaired in controlling chronic Clone-13 LCMV infection, which was associated with depletion of splenic NK cells and loss of effector cytokine and interferon response gene expression in Cd47 -/- NK cells. Broad CD47-dependent differences in NK activation, survival, and exhaustion pathways were observed in NK cell transcriptional signatures in LCMV infected mice. These data identify CD47 as a cell-intrinsic and systemic regulator of NK cell homeostasis and NK cell function in responding to a viral infection.
Collapse
Affiliation(s)
- Pulak Ranjan Nath
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Arunakumar Gangaplara
- Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Dipasmita Pal-Nath
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Ajeet Mandal
- CCR Collaborative Bioinformatics Resource, Office of Science and Technology Resources, National Cancer Institute and Leidos Biomedical Research, Inc., National Institutes of Health, Bethesda, MD, United States
| | - Dragan Maric
- National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, United States
| | - John M Sipes
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Maggie Cam
- CCR Collaborative Bioinformatics Resource, Office of Science and Technology Resources, National Cancer Institute and Leidos Biomedical Research, Inc., National Institutes of Health, Bethesda, MD, United States
| | - Ethan M Shevach
- Laboratory of Immunology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, United States
| | - David D Roberts
- Laboratory of Pathology, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| |
Collapse
|
103
|
Prader S, Felber M, Volkmer B, Trück J, Schwieger-Briel A, Theiler M, Weibel L, Hambleton S, Seipel K, Vavassori S, Pachlopnik Schmid J. Life-Threatening Primary Varicella Zoster Virus Infection With Hemophagocytic Lymphohistiocytosis-Like Disease in GATA2 Haploinsufficiency Accompanied by Expansion of Double Negative T-Lymphocytes. Front Immunol 2018; 9:2766. [PMID: 30564229 PMCID: PMC6289061 DOI: 10.3389/fimmu.2018.02766] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 11/12/2018] [Indexed: 12/16/2022] Open
Abstract
Two unrelated patients with GATA2-haploinsufficiency developed a hemophagocytic lymphohistiocytosis (HLH)-like disease during a varicella zoster virus (VZV) infection. High copy numbers of VZV were detected in the blood, and the patients were successfully treated with acyclovir and intravenous immunoglobulins. After treatment with corticosteroids for the HLH, both patients made a full recovery. Although the mechanisms leading to this disease constellation have yet to be characterized, we hypothesize that impairment of the immunoregulatory role of NK cells in GATA2-haploinsufficiency may have accentuated the patients' susceptibility to HLH. Expansion of a double negative T-lymphocytic population identified with CyTOF could be a further factor contributing to HLH in these patients. This is the first report of VZV-triggered HLH-like disease in a primary immunodeficiency and the third report of HLH in GATA2-haploinsufficiency. Since HLH was part of the presentation in one of our patients, GATA2-haploinsufficiency represents a potential differential diagnosis in patients presenting with the clinical features of HLH-especially in cases of persisting cytopenia after recovery from HLH.
Collapse
Affiliation(s)
- Seraina Prader
- Division of Immunology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Matthias Felber
- Division of Immunology, University Children's Hospital Zurich, Zurich, Switzerland
- Division of Stem Cell Transplantation University Children's Hospital Zurich, Zurich, Switzerland
| | - Benjamin Volkmer
- Division of Immunology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Johannes Trück
- Division of Immunology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Agnes Schwieger-Briel
- Department of Pediatric Dermatology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Martin Theiler
- Department of Pediatric Dermatology, University Children's Hospital Zurich, Zurich, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Lisa Weibel
- Department of Pediatric Dermatology, University Children's Hospital Zurich, Zurich, Switzerland
- Department of Dermatology, University Hospital Zurich, Zurich, Switzerland
| | - Sophie Hambleton
- Institute of Cellular Medicine, International Centre for Life, Newcastle University, Newcastle upon Tyne, United Kingdom
| | - Katja Seipel
- Department for Biomedical Research, University of Bern, Bern, Switzerland
| | - Stefano Vavassori
- Division of Immunology, University Children's Hospital Zurich, Zurich, Switzerland
| | - Jana Pachlopnik Schmid
- Division of Immunology, University Children's Hospital Zurich, Zurich, Switzerland
- Pediatric Immunology, University of Zurich, Zurich, Switzerland
| |
Collapse
|
104
|
Immunoregulatory functions of innate lymphoid cells. J Immunother Cancer 2018; 6:121. [PMID: 30454038 PMCID: PMC6245864 DOI: 10.1186/s40425-018-0433-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Accepted: 10/23/2018] [Indexed: 01/29/2023] Open
Abstract
Innate lymphoid cells (ILCs) are increasingly being recognized for their ability to impact both innate and adaptive immune cells in diverse contexts. ILCs have been observed in all secondary lymphoid tissues, in addition to being tissue-resident innate lymphocytes. In these locations, ILCs are poised to interact with various immune cells at different stages of an immune response. While the heterogeneity and plasticity of ILCs has complicated their study, their association with immune dysregulation in a wide range of pathologies highlights their importance to human health and disease. Notably, in addition to promoting inflammatory immune responses, populations of ILCs have been shown to inhibit immune responses through a variety of mechanisms. The reports of ILC-mediated regulation of immune responses have differed in terms of the phenotype of the regulatory ILC populations, and their mechanism of action. Yet the ability to modulate immune responses appears to be an important function of ILCs. As our understanding of this family of lymphocytes evolves, delineating the factors that dictate whether ILCs orchestrate inflammatory immune responses or suppresses these responses will be important for understanding various disease mechanisms. Here we focus on recent reports that examine how ILCs regulate immunity in different contexts.
Collapse
|
105
|
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
|
106
|
Chen T, Zhang T, Liu C, Wang C, Ding S, Shao Z, Fu R. NK cells suppress CD8 + T cell immunity via NKG2D in severe aplastic anemia. Cell Immunol 2018; 335:6-14. [PMID: 30471872 DOI: 10.1016/j.cellimm.2018.10.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 10/11/2018] [Accepted: 10/12/2018] [Indexed: 12/25/2022]
Abstract
The roles of natural killer (NK) cells in shaping the immune system had raised wide interests. Here we intended to explore the regulatory functions of NK cells on CD8+ T cells in severe aplastic anemia (SAA) using human participants and lymphocyte infusion-induced bone marrow failure (BMF) mouse model. In SAA patients, NK cells had over-expressions of NKG2D and NKp46, under-expression of NKG2A and enhanced cytotoxicity. NK cells limited autologous CD8+ T cell immunity in an effector/target ratio manner. The suppression was dependent on the existence of NKG2D. We also observed upregulated MICA expression on activated CD8+ T cells, which were susceptible to NK cell mediated lysis in SAA. Animal model concurred with the data from patients. Infusion of NK cells suppressed the proliferation of CD8+ T cells and decreased IFN-γ production. In conclusion, NK cells served NKG2D-dependent immunoregulatory roles by attenuating autologous CD8+ T cell response in SAA.
Collapse
Affiliation(s)
- Tong Chen
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Heping District, Tianjin 300052, PR China
| | - Tian Zhang
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Heping District, Tianjin 300052, PR China
| | - Chunyan Liu
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Heping District, Tianjin 300052, PR China
| | - ChaoMeng Wang
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Heping District, Tianjin 300052, PR China
| | - Shaoxue Ding
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Heping District, Tianjin 300052, PR China
| | - ZongHong Shao
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Heping District, Tianjin 300052, PR China
| | - Rong Fu
- Department of Hematology, Tianjin Medical University General Hospital, 154 Anshan Street, Heping District, Tianjin 300052, PR China.
| |
Collapse
|
107
|
Straub T, Freudenberg MA, Schleicher U, Bogdan C, Gasteiger G, Pircher H. Bacterial coinfection restrains antiviral CD8 T-cell response via LPS-induced inhibitory NK cells. Nat Commun 2018; 9:4117. [PMID: 30297690 PMCID: PMC6175863 DOI: 10.1038/s41467-018-06609-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 09/12/2018] [Indexed: 12/30/2022] Open
Abstract
Infection of specific pathogen-free mice with lymphocytic choriomeningitis virus (LCMV) is a widely used model to study antiviral T-cell immunity. Infections in the real world, however, are often accompanied by coinfections with unrelated pathogens. Here we show that in mice, systemic coinfection with E. coli suppresses the LCMV-specific cytotoxic T-lymphocyte (CTL) response and virus elimination in a NK cell- and TLR2/4-dependent manner. Soluble TLR4 ligand LPS also induces NK cell-mediated negative CTL regulation during LCMV infection. NK cells in LPS-treated mice suppress clonal expansion of LCMV-specific CTLs by a NKG2D- or NCR1-independent but perforin-dependent mechanism. These results suggest a TLR4-mediated immunoregulatory role of NK cells during viral-bacterial coinfections.
Collapse
Affiliation(s)
- Tobias Straub
- Institute for Immunology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Marina A Freudenberg
- Institute for Biology III, Faculty of Biology, University of Freiburg, 79104 Freiburg, Germany
- Department of Pneumology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany
| | - Ulrike Schleicher
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich Alexander-Universität (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
- Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Christian Bogdan
- Mikrobiologisches Institut - Klinische Mikrobiologie, Immunologie und Hygiene, Universitätsklinikum Erlangen, Friedrich Alexander-Universität (FAU) Erlangen-Nürnberg, 91054 Erlangen, Germany
- Medical Immunology Campus Erlangen, FAU Erlangen-Nürnberg, 91054 Erlangen, Germany
| | - Georg Gasteiger
- Institute of Systems Immunology, University of Wuerzburg, 97078 Wuerzburg, Germany
- Institute for Medical Microbiology and Hygiene, University of Freiburg Medical Center, 79104 Freiburg, Germany
| | - Hanspeter Pircher
- Institute for Immunology, Medical Center - University of Freiburg, Faculty of Medicine, University of Freiburg, 79104 Freiburg, Germany.
| |
Collapse
|
108
|
Lang E, Pozdeev VI, Shinde PV, Xu HC, Sundaram B, Zhuang Y, Poschmann G, Huang J, Stühler K, Pandyra AA, Keitel V, Häussinger D, Lang KS, Lang PA. Cholestasis induced liver pathology results in dysfunctional immune responses after arenavirus infection. Sci Rep 2018; 8:12179. [PMID: 30111770 PMCID: PMC6093869 DOI: 10.1038/s41598-018-30627-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Accepted: 07/30/2018] [Indexed: 02/06/2023] Open
Abstract
Immune responses are critical for defense against pathogens. However, prolonged viral infection can result in defective T cell immunity, leading to chronic viral infection. We studied immune activation in response to arenavirus infection during cholestasis using bile duct ligation (BDL). We monitored T cell responses, virus load and liver pathology markers after infection with lymphocytic choriomeningitis virus (LCMV). BDL mice failed to induce protective anti-viral immunity against LCMV and consequently exhibited chronic viral infection. BDL mice exhibited reduced anti-viral T cell immunity as well as reduced type 1 interferon production early after LCMV infection. Consistently, the presence of serum from BDL mice reduced the responsiveness of dendritic cell (DC) and T cell cultures when compared to Sham controls. Following fractionation and mass spectrometry analyses of sera, we identified several serum factors to be upregulated following BDL including bilirubin, bile acids, 78 kDa Glucose regulated protein (GRP78) and liver enzymes. Bilirubin and GRP78 were capable of inhibiting DC and T cell activation. In this work, we demonstrate that liver damage mediated by cholestasis results in defective immune induction following arenavirus infection.
Collapse
Affiliation(s)
- Elisabeth Lang
- Department of Gastroenterology, Hepatology, and Infectious Diseases, Heinrich-Heine-University Düsseldorf, Universitätsstrasse. 1, 40225, Düsseldorf, Germany.,Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Vitaly I Pozdeev
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany.,Laboratory of Oncolytic-Virus-Immuno-Therapeutics (LOVIT), German Cancer Research Center (DKFZ), Im Neunheimer Feld 242, 69120, Heidelberg, Germany.,Laboratory of Oncolytic-Virus-Immuno-Therapeutics (LOVIT), Luxembourg Institute of Health (LIH), 84, rue Val Fleuri, L-1526, Strassen, Luxembourg
| | - Prashant V Shinde
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Haifeng C Xu
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Balamurugan Sundaram
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Yuan Zhuang
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Gereon Poschmann
- Molecular Proteomics Laboratory, Biomedical Research Center (BMFZ), Heinrich-Heine-Universität, Düsseldorf, Medical Faculty, Duesseldorf, Germany
| | - Jun Huang
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Kai Stühler
- Molecular Proteomics Laboratory, Biomedical Research Center (BMFZ), Heinrich-Heine-Universität, Düsseldorf, Medical Faculty, Duesseldorf, Germany.,Institute for Molecular Medicine, University Hospital Düsseldorf, Düsseldorf, Germany
| | - Aleksandra A Pandyra
- Department of Gastroenterology, Hepatology, and Infectious Diseases, Heinrich-Heine-University Düsseldorf, Universitätsstrasse. 1, 40225, Düsseldorf, Germany.,Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Verena Keitel
- Department of Gastroenterology, Hepatology, and Infectious Diseases, Heinrich-Heine-University Düsseldorf, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Dieter Häussinger
- Department of Gastroenterology, Hepatology, and Infectious Diseases, Heinrich-Heine-University Düsseldorf, Universitätsstrasse. 1, 40225, Düsseldorf, Germany
| | - Karl S Lang
- Institute of Immunology, Medical Faculty, University of Duisburg-Essen, Hufelandstrasse. 55, Essen, 45147, Germany
| | - Philipp A Lang
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Universitätsstrasse. 1, 40225, Düsseldorf, Germany.
| |
Collapse
|
109
|
Lymphocytes Negatively Regulate NK Cell Activity via Qa-1b following Viral Infection. Cell Rep 2018; 21:2528-2540. [PMID: 29186689 DOI: 10.1016/j.celrep.2017.11.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2017] [Revised: 10/02/2017] [Accepted: 10/30/2017] [Indexed: 01/26/2023] Open
Abstract
NK cells can reduce anti-viral T cell immunity during chronic viral infections, including infection with the lymphocytic choriomeningitis virus (LCMV). However, regulating factors that maintain the equilibrium between productive T cell and NK cell immunity are poorly understood. Here, we show that a large viral load resulted in inhibition of NK cell activation, which correlated with increased expression of Qa-1b, a ligand for inhibitory NK cell receptors. Qa-1b was predominantly upregulated on B cells following LCMV infection, and this upregulation was dependent on type I interferons. Absence of Qa-1b resulted in increased NK cell-mediated regulation of anti-viral T cells following viral infection. Consequently, anti-viral T cell immunity was reduced in Qa-1b- and NKG2A-deficient mice, resulting in increased viral replication and immunopathology. NK cell depletion restored anti-viral immunity and virus control in the absence of Qa-1b. Taken together, our findings indicate that lymphocytes limit NK cell activity during viral infection in order to promote anti-viral T cell immunity.
Collapse
|
110
|
Interleukin-27R Signaling Mediates Early Viral Containment and Impacts Innate and Adaptive Immunity after Chronic Lymphocytic Choriomeningitis Virus Infection. J Virol 2018; 92:JVI.02196-17. [PMID: 29593047 PMCID: PMC5974502 DOI: 10.1128/jvi.02196-17] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Accepted: 03/22/2018] [Indexed: 12/19/2022] Open
Abstract
Chronic viral infections represent a major challenge to the host immune response, and a unique network of immunological elements, including cytokines, are required for their containment. By using a model persistent infection with the natural murine pathogen lymphocytic choriomeningitis virus clone 13 (LCMV Cl13) we investigated the role of one such cytokine, interleukin-27 (IL-27), in the control of chronic infection. We found that IL-27 receptor (IL-27R) signaling promoted control of LCMV Cl13 as early as days 1 and 5 after infection and that il27p28 transcripts were rapidly elevated in multiple subsets of dendritic cells (DCs) and myeloid cells. In particular, plasmacytoid DCs (pDCs), the most potent type 1 interferon (IFN-I)-producing cells, significantly increased il27p28 in a Toll-like receptor 7 (TLR7)-dependent fashion. Notably, mice deficient in an IL-27-specific receptor, WSX-1, exhibited a pleiotropy of innate and adaptive immune alterations after chronic lymphocytic choriomeningitis virus (LCMV) infection, including compromised NK cell cytotoxicity and antibody responses. While, the majority of these immune alterations appeared to be cell extrinsic, cell-intrinsic IL-27R was necessary to maintain early pDC numbers, which, alongside lower IFN-I transcription in CD11b+ DCs and myeloid cells, may explain the compromised IFN-I elevation that we observed early after LCMV Cl13 infection in IL-27R-deficient mice. Together, these data highlight the critical role of IL-27 in enabling optimal antiviral immunity early and late after infection with a systemic persistent virus and suggest that a previously unrecognized positive-feedback loop mediated by IL-27 in pDCs might be involved in this process. IMPORTANCE Persistently replicating pathogens, such as human immunodeficiency virus, hepatitis B virus, and hepatitis C virus, represent major health problems worldwide. These infections impose a long-term challenge on the host immune system, which must be heavily and continuously regulated to keep pathogen replication in check without causing fatal immunopathology. Using a persistently replicating rodent pathogen, LCMV, in its natural host, we identified the cellular sources and effects of one important regulatory pathway, interleukin-27 receptor WSX-1 signaling, that is required for both very early and late restriction of chronic (but not acute) infection. We found that WSX-1 was necessary to promote innate immunity and the development of aberrant adaptive immune responses. This not only highlights the role of IL-27 receptor signaling in regulating distinct host responses that are known to be necessary to control chronic infections, but also positions IL-27 as a potential therapeutic target for their modulation.
Collapse
|
111
|
Adenovirus Vector Vaccination Impacts NK Cell Rheostat Function following Lymphocytic Choriomeningitis Virus Infection. J Virol 2018. [PMID: 29514912 PMCID: PMC5952142 DOI: 10.1128/jvi.02103-17] [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] [Indexed: 12/23/2022] Open
Abstract
Natural killer (NK) cells respond rapidly as a first line of defense against infectious pathogens. In addition, NK cells may provide a "rheostat" function and have been shown to reduce the magnitude of antigen-specific T cell responses following infection to avoid immunopathology. However, it remains unknown whether NK cells similarly modulate vaccine-elicited T cell responses following virus challenge. We used the lymphocytic choriomeningitis virus (LCMV) clone 13 infection model to address whether NK cells regulate T cell responses in adenovirus vector-vaccinated mice following challenge. As expected, NK cell depletion in unvaccinated mice resulted in increased virus-specific CD4+ and CD8+ T cell responses and immunopathology following LCMV challenge. In contrast, NK cell depletion had minimal to no impact on antigen-specific T cell responses in mice that were vaccinated with an adenovirus serotype 5 (Ad5)-GP vector prior to LCMV challenge. Moreover, NK cell depletion in vaccinated mice prior to challenge did not result in immunopathology and did not compromise protective efficacy. These data suggest that adenovirus vaccine-elicited T cells may be less sensitive to NK cell rheostat regulation than T cells primed by LCMV infection.IMPORTANCE Recent data have shown that NK cell depletion leads to enhanced virus-elicited T cell responses that can result in severe immunopathology following LCMV infection in mice. In this study, we observed that NK cells exerted minimal to no impact on vaccine-elicited T cells following LCMV challenge, suggesting that adenovirus vaccine-elicited T cells may be less subject to NK cell regulation. These data contribute to our understanding of NK cell regulatory functions and T cell-based vaccines.
Collapse
|
112
|
Weak vaccinia virus-induced NK cell regulation of CD4 T cells is associated with reduced NK cell differentiation and cytolytic activity. Virology 2018; 519:131-144. [PMID: 29715623 DOI: 10.1016/j.virol.2018.04.012] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 03/31/2018] [Accepted: 04/16/2018] [Indexed: 11/20/2022]
Abstract
Natural killer (NK) cells control antiviral adaptive immune responses in mice during some virus infections, but the universality of this phenomenon remains unknown. Lymphocytic choriomeningitis virus (LCMV) infection of mice triggered potent cytotoxic activity of NK cells (NKLCMV) against activated CD4 T cells, tumor cells, and allogeneic lymphocytes. In contrast, NK cells activated by vaccinia virus (VACV) infection (NKVACV) exhibited weaker cytolytic activity against each of these target cells. Relative to NKLCMV cells, NKVACV cells exhibited a more immature (CD11b-CD27+) phenotype, and lower expression levels of the activation marker CD69, cytotoxic effector molecules (perforin, granzyme B), and the transcription factor IRF4. NKVACV cells expressed higher levels of the inhibitory molecule NKG2A than NKLCMV cells. Consistent with this apparent lethargy, NKVACV cells only weakly constrained VACV-specific CD4 T-cell responses. This suggests that NK cell regulation of adaptive immunity, while universal, may be limited with viruses that poorly activate NK cells.
Collapse
|
113
|
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
|
114
|
Maini MK, Pallett LJ. Defective T-cell immunity in hepatitis B virus infection: why therapeutic vaccination needs a helping hand. Lancet Gastroenterol Hepatol 2018; 3:192-202. [PMID: 29870733 DOI: 10.1016/s2468-1253(18)30007-4] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/18/2017] [Accepted: 09/22/2017] [Indexed: 12/11/2022]
Abstract
Hepatitis B virus (HBV) remains a major cause of morbidity and mortality worldwide. Treatments that can induce functional cure in patients chronically infected with this hepatotropic, non-cytopathic virus are desperately needed. Attempts to use therapeutic vaccines to expand the weak antiviral T-cell response and induce sustained immunity have been unsuccessful. However, exciting progress has been made in defining the molecular defects that must be overcome to harness T-cell immunity. A large arsenal of immunotherapeutic agents and direct-acting antivirals targeting multiple steps of the viral lifecycle is emerging. In this Review, we discuss how to translate the new insights into T-cell manipulation, combined with better understanding of patient heterogeneity, into optimisation of therapeutic vaccines against HBV. We review the opportunities and risks involved in boosting endogenous T-cell responses using combinations of next generation therapeutic vaccines and immunotherapy agents.
Collapse
Affiliation(s)
- Mala K Maini
- Division of Infection and Immunity and Institute of Immunity and Transplantation, University College London, London, UK.
| | - Laura J Pallett
- Division of Infection and Immunity and Institute of Immunity and Transplantation, University College London, London, UK
| |
Collapse
|
115
|
Song Y, Hu B, Liu Y, Jin Z, Zhang Y, Lin D, Zhu Y, Lei L, Gong H, Mei Y, Teo HY, Wu D, Liu H. IL-12/IL-18-preactivated donor NK cells enhance GVL effects and mitigate GvHD after allogeneic hematopoietic stem cell transplantation. Eur J Immunol 2018; 48:670-682. [PMID: 29282719 DOI: 10.1002/eji.201747177] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2017] [Revised: 11/25/2017] [Accepted: 12/20/2017] [Indexed: 12/21/2022]
Abstract
Adoptive transfer of donor NK cells has the potential of mediating graft-versus-leukemia (GVL) effect while suppressing acute graft-versus-host-disease (aGVHD) during allogeneic hematopoietic stem cell transplantation (allo-HSCT). However, these beneficial effects are limited by the transient function of adoptively transferred NK cells. Previous studies demonstrate that cytokine-induced memory-like NK cells that are preactivated by IL-12, IL-15, and IL-18 have enhanced effector functions and long life span in vivo. Here, we investigated the effects of IL-12/18-preactivated and IL-12/15/18-preactivated donor NK cells on GVL and aGVHD in a murine model of allo-HSCT. We found that both IL-12/18- and IL-12/15/18-preactivated NK cells mediated stronger GVL effect than control NK cells mainly due to their elevated activation/cytotoxicity and sustained proliferative potential. Interestingly, we observed that although both IL-12/18- and IL-12/15/18-preactivated NK cells significantly inhibited severe aGVHD, only the IL-12/18-preactivated NK cells maintained the beneficial effect of donor NK cells on mild aGVHD. The IL-12/15/18-preactivated NK cell infusion accelerated aGVHD in the fully-mismatched mild aGVHD model. Our results demonstrated that IL-12/18-preactivated NK cells displayed sustained and enhanced GVL functions, and could mitigate aGVHD despite the severity of the disease. IL-12/18-preactivated donor NK cell infusion may be an effective and safe adoptive therapy after allo-HSCT.
Collapse
Affiliation(s)
- Yuan Song
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Bo Hu
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yonghao Liu
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ziqi Jin
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yinsheng Zhang
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Dandan Lin
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Ying Zhu
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Lei Lei
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Huanle Gong
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yu Mei
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Huey Yee Teo
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| | - Depei Wu
- Institute of Blood and Marrow Transplantation, Soochow University, Suzhou, China.,Collaborative Innovation Center of Hematology, Soochow University, China.,Jiangsu Institute of Hematology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Haiyan Liu
- Immunology Programme, Life Sciences Institute and Department of Microbiology and Immunology, National University of Singapore, Singapore, Singapore
| |
Collapse
|
116
|
Zahaf A, Badia A, Morel J, Dellis O. [Gal-9 promotes viral persistence of hepatitis virus in the liver]. Med Sci (Paris) 2017; 33:947-949. [PMID: 29200391 DOI: 10.1051/medsci/20173311010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Affiliation(s)
- Amina Zahaf
- M1 Biologie-Santé, Université Paris-Saclay, 91405 Orsay, France
| | - Aurore Badia
- M1 Biologie-Santé, Université Paris-Saclay, 91405 Orsay, France
| | - Jessica Morel
- M1 Biologie-Santé, Université Paris-Saclay, 91405 Orsay, France
| | - Olivier Dellis
- Inserm UMR-S 1174, équipe signalisation calcique, bâtiment 443, rue des Adèles, 91405 Orsay, France
| |
Collapse
|
117
|
Characteristics of NK cells from leukemic microenvironment in MLL-AF9 induced acute myeloid leukemia. Mol Immunol 2017; 93:68-78. [PMID: 29154208 DOI: 10.1016/j.molimm.2017.11.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2017] [Revised: 10/18/2017] [Accepted: 11/07/2017] [Indexed: 01/27/2023]
Abstract
NK cells are indispensable components of tissue microenvironment and play vital in both innate and adaptive immunity. The activation and function of NK cells are affected by tumor microenvironments. NK cells are also important players in leukemic microenvironment. However, their characteristics in leukemic microenvironment, including maturation status, phenotype, subpopulations and functional roles especially immunoregulatory potential, have not been well established. Here, we studied these characteristics of NK cells in MLL-AF9 induced mouse acute myeloid leukemia (AML) model. Increase of more mature NK cells were detected in the AML spleen. Splenic AML microenvironment promoted NK cell activation in early and middle stages of leukemia. Cytotoxicity molecules and cytokines were up-regulated in activated NK cells. Furthermore, NK cells from AML microenvironment regulated T cell function, not only by maintaining the activation of CD4+ and promoting the degranulation of cytotoxic CD8+ T cells but also by influencing the differentiation of CD4+ T cells. Moreover, two NK cell subpopulations marked by DNAM-1 (CD226) had distinct cytokine expression patterns but similar regulatory effects on T cells. Collectively, these findings highlight the significance of immunoregulatory role of NK cells, and suggest novel therapeutic potential for leukemia by manipulating NK cell immunoregulatory activity.
Collapse
|
118
|
Choreño Parra JA, Martínez Zúñiga N, Jiménez Zamudio LA, Jiménez Álvarez LA, Salinas Lara C, Zúñiga J. Memory of Natural Killer Cells: A New Chance against Mycobacterium tuberculosis? Front Immunol 2017; 8:967. [PMID: 28855906 PMCID: PMC5558047 DOI: 10.3389/fimmu.2017.00967] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2017] [Accepted: 07/28/2017] [Indexed: 12/19/2022] Open
Abstract
Natural killer (NK) cells are lymphocytes of the innate immune system, which play an important role in the initial defense against a wide variety of pathogens, including viruses and intracellular bacteria. NK cells produce cytokines that enhance immune responses directed toward pathogens and also exert cytotoxic activity against infected cells, thereby eliminating the reservoir of infection. Their role in defense against Mycobacterium tuberculosis (Mtb) has been recently studied, and there is increasing evidence that highlight the importance of NK cell function during pulmonary tuberculosis (PTB), especially in the absence of optimal T-cell responses. Additionally, in the last years, it has been observed that NK cells mediate secondary responses against antigens to which they were previously exposed, an ability classically attributed to lymphocytes of the adaptive branch of immunity. This phenomenon, called “innate memory,” could have important implications in the efforts to develop therapies and vaccines to improve the initial phases of immune reactions against different microorganisms, especially those to which there is not yet available vaccines to prevent infection, as is the case for tuberculosis. Therefore, the possibility of inducing memory-like NK cells ready to act prior to contact with Mtb or during the earliest stages of infection becomes quite interesting. However, our understanding of the mechanisms of innate memory remains incomplete. Here, we review recent literature about the mechanisms involved in the formation and maintenance of NK cell memory and the role of these cells in the immune response during tuberculosis. Finally, we discuss if the current evidence is sufficient to substantiate that NK cells exert more rapid and robust secondary responses after consecutive encounters with Mtb.
Collapse
Affiliation(s)
- José Alberto Choreño Parra
- Laboratory of Clinical Immunology I, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico.,Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas, Mexico City, Mexico
| | - Nayeli Martínez Zúñiga
- Brain Bank, Department of National Laboratories of Experimental Services, Centro de Investigación y de Estudios Avanzados (CINVESTAV), Instituto Politécnico Nacional, Mexico City, Mexico
| | - Luis Antonio Jiménez Zamudio
- Laboratory of Clinical Immunology I, Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico
| | - Luis Armando Jiménez Álvarez
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas, Mexico City, Mexico
| | - Citlaltepetl Salinas Lara
- Department of Pathology, Instituto Nacional de Neurología y Neurocirugía "Manuel Velasco Suárez", Mexico City, Mexico
| | - Joaquín Zúñiga
- Laboratory of Immunobiology and Genetics, Instituto Nacional de Enfermedades Respiratorias "Ismael Cosío Villegas, Mexico City, Mexico
| |
Collapse
|
119
|
Pseudomonas aeruginosa-mannose sensitive hemagglutinin injection treated cytokine-induced killer cells combined with chemotherapy in the treatment of malignancies. Int Immunopharmacol 2017; 51:57-65. [PMID: 28802902 DOI: 10.1016/j.intimp.2017.08.003] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Revised: 07/31/2017] [Accepted: 08/07/2017] [Indexed: 01/07/2023]
Abstract
Pseudomonas aeruginosa-mannose sensitive hemagglutinin (PA-MSHA) injection serves as immunological adjuvant in clinical treatment of cancer patients. In present study, we investigated whether PA-MSHA injection enhanced the anti-tumor efficacy of CIK cells. Twenty patients with malignancies were enrolled in this retrospective clinical trial. They were divided into two groups: 10 patients received PA-MSHA treated CIK cells transfusion combined with chemotherapy, and other patients accepted CIK cells and chemotherapy. The efficacy of PA-MSHA treated CIK cells was also observed in vitro and in vivo. With PA-MSHA treatment CIK cells exhibited enhanced proliferation but decreased expression of inhibitory cell surface markers such as Tim-3 and PD-1. Particularly in CIK cells, PA-MSHA promoted the extrusion of pro-inflammatory cytokines like IFN-γ. Of 10 patients with PA-MSHA treated CIK cells and chemotherapy, two patients reached partial remissions, 7 patients had stable disease and the other one had progressive disease. Some of these patients experienced fever after cell infusion. 8 patients with CIK cells showed stable disease and 2 patients had progressive disease. Moreover, the side effects were small in patients with CIK treatment. Our data indicated that PA-MSHA improves the functions of CIK cells and shed new light on developing more potent therapeutic approaches for malignancies.
Collapse
|
120
|
Yan B, Chen F, Xu L, Wang Y, Wang X. Interleukin-28B dampens airway inflammation through up-regulation of natural killer cell-derived IFN-γ. Sci Rep 2017; 7:3556. [PMID: 28620197 PMCID: PMC5472588 DOI: 10.1038/s41598-017-03856-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 05/08/2017] [Indexed: 12/18/2022] Open
Abstract
Interleukin-28A (IL-28A) modulates CD11c+ dendritic cell (DC) function and promotes type 1T helper (Th1) differentiation, thus suppressing allergic airway diseases. However, the function of the IL-28A isoform IL-28B in these diseases remains largely unknown. In this study, we revealed a novel role of IL-28B in inducing type 1 immunity and protecting against ovalbumin (OVA)-induced allergic asthma in mice. IL-28B overexpression in wild-type mice promoted natural killer (NK) cell polarization in the lung, leading to the increased number of interferon (IFN)-γ-producing NK1 cells as well as Th1 differentiation. Importantly, IL-28B overexpression had no protective effect on OVA-induced asthma in IFN-γ-knockout (IFN-γ−/−) mice. These results demonstrate that IL-28B ameliorates experimental allergic asthma via enhancing NK cell polarization, which might be useful for prevention and treatment of allergic asthma.
Collapse
Affiliation(s)
- Bailing Yan
- Department of Emergency, The First Hospital of Jilin University, Changchun, 130021, China
| | - Feng Chen
- Dermatology Department, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Lijun Xu
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, 130021, China.
| | - Yanshi Wang
- Institute of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Xuefu Wang
- Institute of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, China. .,School of Pharmacology, Anhui Medical University, Hefei, Anhui, 230032, China.
| |
Collapse
|
121
|
Zamora AE, Aguilar EG, Sungur CM, Khuat LT, Dunai C, Lochhead GR, Du J, Pomeroy C, Blazar BR, Longo DL, Venstrom JM, Baumgarth N, Murphy WJ. Licensing delineates helper and effector NK cell subsets during viral infection. JCI Insight 2017; 2:87032. [PMID: 28515356 DOI: 10.1172/jci.insight.87032] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Accepted: 04/18/2017] [Indexed: 11/17/2022] Open
Abstract
Natural killer (NK) cells can be divided into phenotypic subsets based on expression of receptors that bind self-MHC-I molecules, a concept termed licensing or education. Here we show NK cell subsets with different migratory, effector, and immunoregulatory functions in dendritic cell and antigen (ag)-specific CD8+ T cell responses during influenza and murine cytomegalovirus infections. Shortly after infection, unlicensed NK cells localized in draining lymph nodes and produced GM-CSF, which correlated with the expansion and activation of dendritic cells, and resulted in greater and sustained ag-specific T cell responses. In contrast, licensed NK cells preferentially migrated to infected tissues and produced IFN-γ. Importantly, human NK cell subsets exhibited similar phenotypic characteristics. Collectively, our studies demonstrate a critical demarcation between the functions of licensed and unlicensed NK cell subsets, with the former functioning as the classical effector subset and the latter as the stimulator of adaptive immunity helping to prime immune responses.
Collapse
Affiliation(s)
| | | | | | | | | | - G Raymond Lochhead
- Department of Internal Medicine, UC Davis School of Medicine, Sacramento, California, USA
| | - Juan Du
- Department of Medicine, UCSF, San Francisco, California, USA
| | - Claire Pomeroy
- President of Lasker Foundation, Albert and Mary Lasker Foundation, New York City, New York, USA
| | - Bruce R Blazar
- Masonic Cancer Center and Department of Pediatrics, Division of Blood and Marrow Transplantation, University of Minnesota, Minneapolis, Minnesota, USA
| | - Dan L Longo
- National Institute on Aging, NIH, Baltimore, Maryland, USA
| | | | - Nicole Baumgarth
- Center for Comparative Medicine, UC Davis, Davis, California, USA
| | - William J Murphy
- Department of Dermatology.,Department of Internal Medicine, UC Davis School of Medicine, Sacramento, California, USA
| |
Collapse
|
122
|
Gardiner CM, Finlay DK. What Fuels Natural Killers? Metabolism and NK Cell Responses. Front Immunol 2017; 8:367. [PMID: 28421073 PMCID: PMC5376555 DOI: 10.3389/fimmu.2017.00367] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2017] [Accepted: 03/14/2017] [Indexed: 01/05/2023] Open
Abstract
There is a growing appreciation that cellular metabolism is important in determining the course of lymphocyte responses. Additionally, changes in metabolic processes have been linked to dysfunctional lymphocyte functions in a number of different diseases. While most early studies of metabolic regulation of lymphocyte function focused on T lymphocytes, an understanding of how metabolic pathways impact upon natural killer (NK) cell responses is now starting to emerge. In this review article, we will discuss how cellular metabolism influences lymphocyte function with a particular focus upon NK cells.
Collapse
Affiliation(s)
- Clair M Gardiner
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| | - David K Finlay
- School of Biochemistry and Immunology, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland.,School of Pharmacy and Pharmaceutical Sciences, Trinity Biomedical Sciences Institute, Trinity College Dublin, Dublin, Ireland
| |
Collapse
|
123
|
Yin J, Zhang J, Lu Q. The role of basic leucine zipper transcription factor E4BP4 in the immune system and immune-mediated diseases. Clin Immunol 2017; 180:5-10. [PMID: 28365317 DOI: 10.1016/j.clim.2017.03.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 03/20/2017] [Accepted: 03/20/2017] [Indexed: 01/03/2023]
Abstract
Basic leucine zipper transcription factor E4BP4 (also known as NFIL3) has been implicated in the molecular and cellular mechanisms of functions and activities in mammals. The interactions between E4BP4 and major regulators of cellular processes have triggered significant interest in the roles of E4BP4 in the pathogenesis of certain chronic diseases. Indeed, novel discoveries have been emerging to illustrate the involvement of E4BP4 in multiple disorders. It is recognized that E4BP4 is extensively involved in some immune-mediated diseases, but the mechanisms of E4BP4 involvement in these complex diseases remain poorly defined. Here we review the regulatory mechanisms of E4BP4 engaging in not only the biological function but also the development of immune-mediated diseases, paving the way for future therapies.
Collapse
Affiliation(s)
- Jinghua Yin
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, No. 139, Renmin Road, Changsha 410011, China
| | - Jian Zhang
- Department of Microbial Infection and Immunity, The Ohio State University, Columbus, OH43210, USA.
| | - Qianjin Lu
- Department of Dermatology, The Second Xiangya Hospital, Central South University, Hunan Key Laboratory of Medical Epigenomics, No. 139, Renmin Road, Changsha 410011, China.
| |
Collapse
|
124
|
Yoshioka T, Tatsumi T, Miyagi T, Mukai K, Nishio K, Nishio A, Yokoyama Y, Suda T, Kegasawa T, Shigekawa M, Hikita H, Sakamori R, Takehara T. Frequency and role of NKp46 and NKG2A in hepatitis B virus infection. PLoS One 2017; 12:e0174103. [PMID: 28328926 PMCID: PMC5362099 DOI: 10.1371/journal.pone.0174103] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Accepted: 03/04/2017] [Indexed: 12/20/2022] Open
Abstract
Background and Aim Natural Killer (NK) cells are involved in the control of viral infection. However, the role of NK cells in chronic hepatitis B (CHB) remains unclear. This study investigated the frequencies and roles of NK cells in CHB, with a focus on activating receptor NKp46 and inhibitory receptor NKG2A. Patients/Method Peripheral blood lymphocytes were obtained from 71 CHB patients and 37 healthy subjects (HS). The expressions of NKp46 and NKG2A were analyzed using flow cytometry. The role of NKp46-ligand was assessed using an in vitro co-culture system. Cytotoxicity and IFN-γ production in NK cells were evaluated using RT-PCR and flow cytometry. Results CHB patients were classified into treatment-naïve patients with low HBV DNA titer (CHB-L; n = 28), high HBV DNA titer (CHB-H; n = 24) by the cut-off level of serum HBV DNA 4 log copies/ml, and patients receiving nucleos(t)ide analogue (CHB-NA; n = 19). The expressions of NKp46 and NKG2A were higher in CHB-H than in HS/CHB-L/CHB-NA. HepG2.2.15 had higher NKp46-ligand expression than HepG2. When NK cells from HS were co-cultured with HepG2.2.15, inhibition of the NKp46 and NKp46-ligand interaction by anti-NKp46 antibody significantly reduced cytolysis of HepG2.2.15 and IFN-γ production. However, those reductions were not observed in co-culture with HepG2. Additionally, NK cells that highly expressed NKp46 also highly expressed NKG2A (NKp46highNKG2Ahigh subset). The frequencies of NKp46highNKG2Ahigh subset in CHB-H were higher than those in HS/CHB-L/CHB-NA. Among treatment-naïve CHB patients, the frequencies of NKp46highNKG2Ahigh subset were positively correlated with serum ALT (P<0.01, r = 0.45) and HBV DNA (P<0.01, r = 0.59) levels. The expressions of Fas-L, STAT1, TRAIL and CD107a were higher and IFN-γ expression was lower in the NKp46highNKG2Ahigh subset than in the other subsets. Conclusion The NKp46 and NKp46-ligand interaction contributes to NK cell activation. A novel NK cell subset, the NKp46highNKG2Ahigh subset, may be associated with liver injury and HBV replication.
Collapse
Affiliation(s)
- Teppei Yoshioka
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tomohide Tatsumi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takuya Miyagi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kaori Mukai
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Kumiko Nishio
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Akira Nishio
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Yoshinobu Yokoyama
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takahiro Suda
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tadashi Kegasawa
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Minoru Shigekawa
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Hayato Hikita
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Ryotaro Sakamori
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Tetsuo Takehara
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
- * E-mail:
| |
Collapse
|
125
|
Crome SQ, Nguyen LT, Lopez-Verges S, Yang SYC, Martin B, Yam JY, Johnson DJ, Nie J, Pniak M, Yen PH, Milea A, Sowamber R, Katz SR, Bernardini MQ, Clarke BA, Shaw PA, Lang PA, Berman HK, Pugh TJ, Lanier LL, Ohashi PS. A distinct innate lymphoid cell population regulates tumor-associated T cells. Nat Med 2017; 23:368-375. [PMID: 28165478 PMCID: PMC5497996 DOI: 10.1038/nm.4278] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 01/04/2017] [Indexed: 12/15/2022]
Abstract
Antitumor T cells are subject to multiple mechanisms of negative regulation. Recent findings that innate lymphoid cells (ILCs) regulate adaptive T cell responses led us to examine the regulatory potential of ILCs in the context of cancer. We identified a unique ILC population that inhibits tumor-infiltrating lymphocytes (TILs) from high-grade serous tumors, defined their suppressive capacity in vitro, and performed a comprehensive analysis of their phenotype. Notably, the presence of this CD56+CD3- population in TIL cultures was associated with reduced T cell numbers, and further functional studies demonstrated that this population suppressed TIL expansion and altered TIL cytokine production. Transcriptome analysis and phenotypic characterization determined that regulatory CD56+CD3- cells exhibit low cytotoxic activity, produce IL-22, and have an expression profile that overlaps with those of natural killer (NK) cells and other ILCs. NKp46 was highly expressed by these cells, and addition of anti-NKp46 antibodies to TIL cultures abrogated the ability of these regulatory ILCs to suppress T cell expansion. Notably, the presence of these regulatory ILCs in TIL cultures corresponded with a striking reduction in the time to disease recurrence. These studies demonstrate that a previously uncharacterized ILC population regulates the activity and expansion of tumor-associated T cells.
Collapse
Affiliation(s)
- Sarah Q Crome
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Linh T Nguyen
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Sandra Lopez-Verges
- Department of Microbiology and Immunology and the Parker Institute for Cancer Immunotherapy, University of California San Francisco, San Francisco, California, USA
- Gorgas Memorial Institute of Health Studies, Panama City, Panama
| | - S Y Cindy Yang
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Departments of Medical Biophysics and Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Bernard Martin
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Jennifer Y Yam
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Dylan J Johnson
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Departments of Medical Biophysics and Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Jessica Nie
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Michael Pniak
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Pei Hua Yen
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Anca Milea
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Ramlogan Sowamber
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
| | - Sarah Rachel Katz
- Division of Gynecologic Oncology, University Health Network, Toronto, Ontario, Canada
| | - Marcus Q Bernardini
- Division of Gynecologic Oncology, University Health Network, Toronto, Ontario, Canada
| | - Blaise A Clarke
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Patricia A Shaw
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Philipp A Lang
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Molecular Medicine II, Medical Faculty, Heinrich Heine University, Düsseldorf, Germany
| | - Hal K Berman
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, Ontario, Canada
| | - Trevor J Pugh
- Departments of Medical Biophysics and Immunology, University of Toronto, Toronto, Ontario, Canada
| | - Lewis L Lanier
- Department of Microbiology and Immunology and the Parker Institute for Cancer Immunotherapy, University of California San Francisco, San Francisco, California, USA
| | - Pamela S Ohashi
- Princess Margaret Cancer Centre, University Health Network, Toronto, Ontario, Canada
- Departments of Medical Biophysics and Immunology, University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
126
|
Nishio A, Tatsumi T, Nawa T, Suda T, Yoshioka T, Onishi Y, Aono S, Shigekawa M, Hikita H, Sakamori R, Okuzaki D, Fukuhara T, Matsuura Y, Hiramatsu N, Takehara T. CD14 + monocyte-derived galectin-9 induces natural killer cell cytotoxicity in chronic hepatitis C. Hepatology 2017; 65:18-31. [PMID: 27640362 DOI: 10.1002/hep.28847] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 08/23/2016] [Indexed: 12/18/2022]
Abstract
UNLABELLED Natural killer (NK) cell activation is associated with both liver injury and persistent infection in chronic hepatitis C (CHC); however, the detailed mechanism of this activation has not yet been fully elucidated. Because galectin-9 (Gal-9) has been reported to be increased in the serum and liver tissue of CHC patients, we investigated the function of Gal-9 in NK cell activation in CHC. First, we evaluated the function of Gal-9 on NK cytotoxicity in vitro. Gal-9 treatment resulted in increased cytotoxicity of naïve NK cells, and the Gal-9-activated NK cells demonstrated cytotoxicity toward hepatoma cells and T cells. Additionally, coculturing peripheral blood mononuclear cells (PBMCs) with JFH-1/Huh7.5.1 cells increased both Gal-9 production and NK cell cytotoxicity. Next, we investigated the source of Gal-9 and the mechanism of Gal-9 production. Deletion of CD14+ monocytes from PBMCs resulted in reduced Gal-9 production in the coculture with JFH-1/Huh7.5.1 cells. Gal-9 production was driven by coculturing of PBMCs with apoptotic hepatocytes. Blocking integrin αv β3 , a receptor for phosphatidylserine expressed on apoptotic cells, also resulted in decreased Gal-9 production. Finally, we found that serum Gal-9 levels were significantly higher in CHC patients than in healthy donors and patients who achieved sustained virologic response. Among CHC patients, serum Gal-9 levels were significantly higher in patients with elevated alanine aminotransferase (ALT) than in those with normal ALT. CONCLUSION These results demonstrate that CD14+ monocyte-derived Gal-9 increases NK cell cytotoxicity in HCV infection, which might be associated with liver injury and persistent infection. (Hepatology 2017;65:18-31).
Collapse
Affiliation(s)
- Akira Nishio
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tomohide Tatsumi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takatoshi Nawa
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Takahiro Suda
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Teppei Yoshioka
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Yoshiki Onishi
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Satoshi Aono
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Minoru Shigekawa
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Hayato Hikita
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Ryotaro Sakamori
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Daisuke Okuzaki
- Department of DNA-Chip Developmental Center for Infectious Diseases, Osaka University, Suita, Japan
| | - Takasuke Fukuhara
- Department of Molecular Virology, Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Yoshiharu Matsuura
- Department of Molecular Virology, Research Institute for Microbial Diseases, Osaka University, Suita, Japan
| | - Naoki Hiramatsu
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| | - Tetsuo Takehara
- Department of Gastroenterology and Hepatology, Osaka University Graduate School of Medicine, Suita, Japan
| |
Collapse
|
127
|
Zloza A, Dharmadhikari ND, Huelsmann EJ, Broucek JR, Hughes T, Kohlhapp FJ, Kaufman HL. Low-dose interleukin-2 impairs host anti-tumor immunity and inhibits therapeutic responses in a mouse model of melanoma. Cancer Immunol Immunother 2017; 66:9-16. [PMID: 27757560 PMCID: PMC11028934 DOI: 10.1007/s00262-016-1916-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Accepted: 10/12/2016] [Indexed: 12/25/2022]
Abstract
Recombinant interleukin-2 (rIL-2) is associated with objective responses in 15-20 % of patients with metastatic melanoma and renal cell carcinoma. More recently, rIL-2 has also demonstrated improved clinical activity in patients with melanoma. Given the toxicity of high-dose rIL-2 and the availability of many new immunotherapy agents, it has been suggested that lower doses of rIL-2 may be preferred for combination clinical studies. In order to determine the impact of low doses of rIL-2 on anti-tumor immunity and therapeutic effectiveness, we challenged C57BL/6 mice with poorly immunogenic B16-F10 melanoma and treated them with varying doses of rIL-2 (range 103-105 IU). Tumor growth at day 14 was significantly reduced when rIL-2 was administered at 10,000 (P < 0.02) and 100,000 (P < 0.02) IU doses, but tumor growth was significantly increased when mice were treated at 1000 IU rIL-2 (P < 0.02), as compared to placebo treatment. While the proportions of CD8+ and CD4+ T cells in the tumor were similar at all doses tested, the proportion of NK cells was decreased and the proportion of Tregs was increased in tumors exposed to low-dose rIL-2. The ratio of gp100-specific CD8+ to CD4+ regulatory T cells was increased in tumors treated at 10,000 and 100,000 IU of rIL-2 but was decreased at the 1000 IU dose compared to placebo-treated mice. These findings suggest that low-dose rIL-2 may impair host anti-tumor immunity and promote tumor growth. Early-phase adjuvant and combination clinical studies should include patient cohorts with higher doses of rIL-2.
Collapse
Affiliation(s)
- Andrew Zloza
- Division of Surgical Oncology Research, Section of Surgical Oncology, Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA
- Department of Surgery, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA
- Department of Immunology/Microbiology, Rush University Medical Center, Chicago, IL, USA
- Department of Internal Medicine, Rush University Medical Center, Chicago, IL, USA
| | - Neal D Dharmadhikari
- Division of Surgical Oncology Research, Section of Surgical Oncology, Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA
| | - Erica J Huelsmann
- Department of Immunology/Microbiology, Rush University Medical Center, Chicago, IL, USA
| | - Joseph R Broucek
- Department of General Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Tasha Hughes
- Department of General Surgery, Rush University Medical Center, Chicago, IL, USA
| | - Frederick J Kohlhapp
- Division of Surgical Oncology Research, Section of Surgical Oncology, Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA
| | - Howard L Kaufman
- Division of Surgical Oncology Research, Section of Surgical Oncology, Rutgers Cancer Institute of New Jersey, 195 Little Albany Street, New Brunswick, NJ, 08903, USA.
- Department of Surgery, Rutgers Robert Wood Johnson Medical School, Rutgers, The State University of New Jersey, New Brunswick, NJ, USA.
| |
Collapse
|
128
|
Abstract
Natural killer (NK) cells play a critical role in viral immunity. In the setting of HIV infection, epidemiologic and functional evidence support a role for NK cells in both protection from new infection and in viral control. Specifically, NK cells directly mediate immune pressure leading to virus evolution, and NK cell receptor genotypic profiles, clonal repertoires, and functional capacity have all been implicated in virus containment. In addition, indirect NK cell-mediated antibody-dependent cellular cytotoxicity has been linked to vaccine-induced protective immunity against HIV infection. With recent advances in our understanding of NK cell deficiency, development, memory-like responses, and editing of the adaptive immune system, the opportunities to direct and exploit NK cell antiviral immunity to target HIV have exponentially grown. In this review, we seek to highlight the intersections between discoveries in basic NK cell biology and the challenges of HIV chronic infection, vaccine development, and cure/eradication strategies.
Collapse
Affiliation(s)
- Eileen Scully
- />Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard, 400 Technology Square, Cambridge, MA 02139 USA
- />Division of Infectious Disease, Department of Medicine, Brigham and Women’s Hospital, Boston, MA 02130 USA
| | - Galit Alter
- />Ragon Institute of Massachusetts General Hospital, Massachusetts Institute of Technology and Harvard, 400 Technology Square, Cambridge, MA 02139 USA
| |
Collapse
|
129
|
Huang WC, Easom NJ, Tang XZ, Gill US, Singh H, Robertson F, Chang C, Trowsdale J, Davidson BR, Rosenberg WM, Fusai G, Toubert A, Kennedy PT, Peppa D, Maini MK. T Cells Infiltrating Diseased Liver Express Ligands for the NKG2D Stress Surveillance System. THE JOURNAL OF IMMUNOLOGY 2016; 198:1172-1182. [PMID: 28031333 PMCID: PMC5253436 DOI: 10.4049/jimmunol.1601313] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 11/22/2016] [Indexed: 12/23/2022]
Abstract
NK cells, which are highly enriched in the liver, are potent regulators of antiviral T cells and immunopathology in persistent viral infection. We investigated the role of the NKG2D axis in T cell/NK cell interactions in hepatitis B. Activated and hepatitis B virus (HBV)-specific T cells, particularly the CD4 fraction, expressed NKG2D ligands (NKG2DL), which were not found on T cells from healthy controls (p < 0.001). NKG2DL-expressing T cells were strikingly enriched within HBV-infected livers compared with the periphery or to healthy livers (p < 0.001). NKG2D+NK cells were also increased and preferentially activated in the HBV-infected liver (p < 0.001), in direct proportion to the percentage of MICA/B-expressing CD4 T cells colocated within freshly isolated liver tissue (p < 0.001). This suggests that NKG2DL induced on T cells within a diseased organ can calibrate NKG2D-dependent activation of local NK cells; furthermore, NKG2D blockade could rescue HBV-specific and MICA/B-expressing T cells from HBV-infected livers. To our knowledge, this is the first ex vivo demonstration that non-virally infected human T cells can express NKG2DL, with implications for stress surveillance by the large number of NKG2D-expressing NK cells sequestered in the liver.
Collapse
Affiliation(s)
- Wei-Chen Huang
- Division of Infection and Immunity, University College London, London WC1E 6JF, United Kingdom.,Tri-Service General Hospital, National Defense Medical Center, Taipei 114, Taiwan
| | - Nicholas J Easom
- Division of Infection and Immunity, University College London, London WC1E 6JF, United Kingdom
| | - Xin-Zi Tang
- Division of Infection and Immunity, University College London, London WC1E 6JF, United Kingdom
| | - Upkar S Gill
- Centre for Immunobiology, Blizard Institute, Bart's and the London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, United Kingdom
| | - Harsimran Singh
- Division of Infection and Immunity, University College London, London WC1E 6JF, United Kingdom.,Institute for Liver and Digestive Health, University College London, London NW3 2PF, United Kingdom
| | - Francis Robertson
- Department of Surgery and Interventional Science, University College London, London WC1E 6BT, United Kingdom
| | - Chiwen Chang
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom; and
| | - John Trowsdale
- Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom; and
| | - Brian R Davidson
- Institute for Liver and Digestive Health, University College London, London NW3 2PF, United Kingdom.,Department of Surgery and Interventional Science, University College London, London WC1E 6BT, United Kingdom
| | - William M Rosenberg
- Institute for Liver and Digestive Health, University College London, London NW3 2PF, United Kingdom
| | - Giuseppe Fusai
- Institute for Liver and Digestive Health, University College London, London NW3 2PF, United Kingdom.,Department of Surgery and Interventional Science, University College London, London WC1E 6BT, United Kingdom
| | - Antoine Toubert
- Université Paris Diderot, Sorbonne Paris Cité, INSERM UMRS 1160, AP-HP, Hôpital Saint-Louis, Paris 75013, France
| | - Patrick T Kennedy
- Centre for Immunobiology, Blizard Institute, Bart's and the London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AT, United Kingdom
| | - Dimitra Peppa
- Division of Infection and Immunity, University College London, London WC1E 6JF, United Kingdom
| | - Mala K Maini
- Division of Infection and Immunity, University College London, London WC1E 6JF, United Kingdom;
| |
Collapse
|
130
|
Gasteiger G, Ataide M, Kastenmüller W. Lymph node - an organ for T-cell activation and pathogen defense. Immunol Rev 2016; 271:200-20. [PMID: 27088916 DOI: 10.1111/imr.12399] [Citation(s) in RCA: 86] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The immune system is a multicentered organ that is characterized by intimate interactions between its cellular components to efficiently ward off invading pathogens. A key constituent of this organ system is the distinct migratory activity of its cellular elements. The lymph node represents a pivotal meeting point of immune cells where adaptive immunity is induced and regulated. Additionally, besides barrier tissues, the lymph node is a critical organ where invading pathogens need to be eliminated in order to prevent systemic distribution of virulent microbes. Here, we explain how the lymph node is structurally and functionally organized to fulfill these two critical functions - pathogen defense and orchestration of adaptive immunity. We will discuss spatio-temporal aspects of cellular immune responses focusing on CD8 T cells and review how and where these cells are activated in the context of viral infections, as well as how viral antigen expression kinetics and different antigen presentation pathways are involved. Finally, we will describe how such responses are regulated and 'helped', and discuss how this relates to intranodal positioning and cellular migration of the various cellular components that are involved in these processes.
Collapse
Affiliation(s)
- Georg Gasteiger
- Institute of Medical Microbiology and Hygiene & FZI Research Center for Immunotherapy, University of Mainz Medical Center, Mainz, Germany
| | - Marco Ataide
- Institute of Experimental Immunology, University of Bonn, Bonn, Germany
| | | |
Collapse
|
131
|
Yi RT, Niu YH, Liu HL, Zhang TY, Yang YC, Zhang Y, Yin DL, Chen TY, Zhao YR. Natural Killer Group 2A Expressed on Both Peripheral CD3 -CD56 +NK Cells and CD3 +CD8 +T Cells Plays a Pivotal Negative Regulatory Role in the Progression of Hepatitis B Virus-Related Acute-on-Chronic Liver Failure. J Interferon Cytokine Res 2016; 36:689-697. [PMID: 27828717 DOI: 10.1089/jir.2015.0166] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
To explore the role of surface receptors natural killer group 2A (NKG2A) and natural killer group 2D (NKG2D) on CD3+CD8+T cells and CD3-CD56+NK cells in the progression of hepatitis B virus (HBV)-related acute-on-chronic liver failure (ACLF), we measured the expression of NKG2A and NKG2D on the surface of these 2 types of circulating cells by flow cytometry in 3 groups. One group consists of 36 patients with chronic hepatitis B (CHB), another one consists of 22 patients with HBV-related ACLF, and the last one has 12 normal controls (NC). The experimental result indicated that there was no significant difference in the proportion of CD3+CD8+T cells in total lymphocytes between the 3 groups. However, the percentage of CD3-CD56+NK cells in ACLF group was evidently higher than that in the CHB group (P < 0.05). In addition, the expression of NKG2D on CD3+CD8+T cells in the ACLF group was significantly lower than that in the CHB group (P < 0.05), but there were no statistically significant differences in its percentages on CD3-CD56+NK cells between the 3 groups. The expression of NKG2A on CD3+CD8+T cells in the ACLF group was significantly higher than that in the NC group (P < 0.05), and on NK cells was significantly higher than that in the CHB group (P < 0.05) and NC group (P < 0.01). The increase in ratios of NKG2A to NKG2D on CD3+CD8+T cells and CD3-CD56+NK cells in the ACLF group was significantly more than that in the CHB group and NC group. The results indicate that the imbalance between NKG2A and NKG2D may contribute to the progression of HBV-related ACLF mediated by CD3-CD56+NK cells and CD3+CD8+T cells. Compared with NKG2D, NKG2A expressed on both peripheral CD3-CD56+NK cells and CD3+CD8+T cells plays a more pivotal negative regulatory role in the progression of HBV-related ACLF.
Collapse
Affiliation(s)
- Rui-Tian Yi
- 1 Department of Infectious Diseases, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an, China
| | - Ying-Hua Niu
- 1 Department of Infectious Diseases, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an, China
| | - Hong-Li Liu
- 2 Central Laboratory, Shaanxi Provincial Infectious Diseases Hospital and Xi'an Eighth Hospital Affiliated to Xi'an Jiaotong University Health Science Center , Xi'an, China
| | - Tie-Ying Zhang
- 3 Department of Internal Medicine, No. 1 Hospital of Xi'an , Xi'an, China
| | - Yu-Cong Yang
- 4 Molecular Medicine Center, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an, China
| | - Yu Zhang
- 5 Department of Gastroenterology, Xi'an Zhongxin Hospital , Xi'an, China
| | - Dong-Lin Yin
- 6 Department of Infectious Diseases, No. 3 People's Hospital Affiliated to Medical College, Shanghai Jiaotong University , Shanghai, China
| | - Tian-Yan Chen
- 1 Department of Infectious Diseases, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an, China
| | - Ying-Ren Zhao
- 1 Department of Infectious Diseases, First Affiliated Hospital of Xi'an Jiaotong University , Xi'an, China
| |
Collapse
|
132
|
Mbanwi AN, Wang C, Geddes K, Philpott DJ, Watts TH. Irreversible splenic atrophy following chronic LCMV infection is associated with compromised immunity in mice. Eur J Immunol 2016; 47:94-106. [PMID: 27730627 DOI: 10.1002/eji.201646666] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2016] [Revised: 09/25/2016] [Accepted: 10/07/2016] [Indexed: 01/16/2023]
Abstract
Lymphocytic choriomeningitis virus clone 13 (LCMV13) infection of mice is a widely used model for investigating the mechanisms driving persistent viral infection in humans. LCMV13 disrupts splenic architecture early during infection, but this returns to normal within a few weeks. However, the long-term effects of LCMV13 infection on splenic structure have not been reported. Here, we report that persistent infection with LCMV13 results in sustained splenic atrophy that persists for at least 500 days following infection, whereas infection with the acutely infecting LCMV Armstrong is associated with a return to preinfection spleen weights. Splenic atrophy is associated with loss of T, B, and non-B non-T cells, with B cells most significantly affected. These effects were partly ameliorated by anti-NK1.1 or anti-CD8 antibody treatment. Antigen presentation was detectable at the time of contraction of the spleen, but no longer detected at late time points, suggesting that continued antigen presentation is not required to maintain splenic atrophy. Immunity to Salmonella infection and influenza vaccination were decreased after the virus was no longer detected. Thus splenic atrophy following LCMV13 infection is irreversible and may contribute to impaired immunity following clearance of LCMV13.
Collapse
Affiliation(s)
- Achire N Mbanwi
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Chao Wang
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Kaoru Geddes
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Dana J Philpott
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| | - Tania H Watts
- Department of Immunology, University of Toronto, Toronto, ON, Canada
| |
Collapse
|
133
|
T‐cell exhaustion: understanding the interface of chronic viral and autoinflammatory diseases. Immunol Cell Biol 2016; 94:935-942. [DOI: 10.1038/icb.2016.81] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Revised: 08/25/2016] [Accepted: 08/27/2016] [Indexed: 12/19/2022]
|
134
|
Fibroblastic reticular cells regulate intestinal inflammation via IL-15-mediated control of group 1 ILCs. Nat Immunol 2016; 17:1388-1396. [PMID: 27798617 PMCID: PMC7097164 DOI: 10.1038/ni.3566] [Citation(s) in RCA: 57] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 08/25/2016] [Indexed: 12/11/2022]
Abstract
Fibroblastic reticular cells influence the function of lymphocytes in secondary lymphoid organs. Ludewig and colleagues demonstrate that they also specifically restrain the activation of group 1 innate lymphoid cells in the presence of microbial stimulation to prevent immunopathology. Fibroblastic reticular cells (FRCs) of secondary lymphoid organs form distinct niches for interaction with hematopoietic cells. We found here that production of the cytokine IL-15 by FRCs was essential for the maintenance of group 1 innate lymphoid cells (ILCs) in Peyer's patches and mesenteric lymph nodes. Moreover, FRC-specific ablation of the innate immunological sensing adaptor MyD88 unleashed IL-15 production by FRCs during infection with an enteropathogenic virus, which led to hyperactivation of group 1 ILCs and substantially altered the differentiation of helper T cells. Accelerated clearance of virus by group 1 ILCs precipitated severe intestinal inflammatory disease with commensal dysbiosis, loss of intestinal barrier function and diminished resistance to colonization. In sum, FRCs act as an 'on-demand' immunological 'rheostat' by restraining activation of group 1 ILCs and thereby preventing immunopathological damage in the intestine.
Collapse
|
135
|
Teoh JJ, Gamache AE, Gillespie AL, Stadnisky MD, Yagita H, Bullock TNJ, Brown MG. Acute Virus Control Mediated by Licensed NK Cells Sets Primary CD8+ T Cell Dependence on CD27 Costimulation. THE JOURNAL OF IMMUNOLOGY 2016; 197:4360-4370. [PMID: 27798162 DOI: 10.4049/jimmunol.1601049] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/24/2016] [Indexed: 11/19/2022]
Abstract
NK cells represent a critical first-line of immune defense against a bevy of viral pathogens, and infection can provoke them to mediate supportive and suppressive effects on virus-specific adaptive immunity. In mice expressing MHC class I Dk (Dk), a major murine CMV (MCMV) resistance factor and self-ligand of the inhibitory Ly49G2 (G2) receptor, licensed G2+ NK cells provide essential host resistance against MCMV infection. Additionally G2+ NK cell responses to MCMV increase the rate and extent of dendritic cell (DC) recovery, as well as early priming of CD8+ T cell effectors in response to MCMV. However, relatively little is known about the NK cell effect on costimulatory ligand patterns displayed by DCs or on ensuing effector and memory T cell responses. In this study, we found that CD27-dependent CD8+ T cell priming and differentiation are shaped by the efficiency of NK responses to virus infection. Surprisingly, differences in specific NK responses to MCMV in Dk-disparate mice failed to distinguish early DC costimulatory patterns. Nonetheless, although CD27 deficiency did not impede licensed NK-mediated resistance, CD70 and CD27 were required to efficiently prime and regulate effector CD8+ T cell differentiation in response to MCMV, which eventually resulted in biased memory T cell precursor formation in Dk mice. In contrast, CD8+ T cells accrued more slowly in non-Dk mice and eventually differentiated into terminal effector cells regardless of CD27 stimulation. Disparity in this requirement for CD27 signaling indicates that specific virus control mediated by NK cells can shape DC costimulatory signals needed to prime CD8+ T cells and eventual T cell fate decisions.
Collapse
Affiliation(s)
- Jeffrey J Teoh
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA 22908.,Beirne B. Carter Center for Immunology Research, University of Virginia School of Medicine, Charlottesville, VA 22908
| | - Awndre E Gamache
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA 22908.,Beirne B. Carter Center for Immunology Research, University of Virginia School of Medicine, Charlottesville, VA 22908
| | - Alyssa L Gillespie
- Beirne B. Carter Center for Immunology Research, University of Virginia School of Medicine, Charlottesville, VA 22908.,Division of Nephrology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908
| | - Michael D Stadnisky
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA 22908.,Beirne B. Carter Center for Immunology Research, University of Virginia School of Medicine, Charlottesville, VA 22908
| | - Hideo Yagita
- Department of Immunology, Juntendo University School of Medicine, Tokyo 113-8421, Japan; and
| | - Timothy N J Bullock
- Beirne B. Carter Center for Immunology Research, University of Virginia School of Medicine, Charlottesville, VA 22908.,Department of Pathology, University of Virginia School of Medicine, Charlottesville, VA 22908
| | - Michael G Brown
- Department of Microbiology, Immunology, and Cancer Biology, University of Virginia School of Medicine, Charlottesville, VA 22908; .,Beirne B. Carter Center for Immunology Research, University of Virginia School of Medicine, Charlottesville, VA 22908.,Division of Nephrology, Department of Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908
| |
Collapse
|
136
|
Rahim MMA, Wight A, Mahmoud AB, Aguilar OA, Lee SH, Vidal SM, Carlyle JR, Makrigiannis AP. Expansion and Protection by a Virus-Specific NK Cell Subset Lacking Expression of the Inhibitory NKR-P1B Receptor during Murine Cytomegalovirus Infection. THE JOURNAL OF IMMUNOLOGY 2016; 197:2325-37. [PMID: 27511735 DOI: 10.4049/jimmunol.1600776] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 07/08/2016] [Indexed: 11/19/2022]
Abstract
NK cells play a major role in immune defense against human and murine CMV (MCMV) infection. Although the MCMV genome encodes for MHC class I-homologous decoy ligands for inhibitory NK cell receptors to evade detection, some mouse strains have evolved activating receptors, such as Ly49H, to recognize these ligands and initiate an immune response. In this study, we demonstrate that approximately half of the Ly49H-expressing (Ly49H(+)) NK cells in the spleen and liver of C57BL/6 mice also express the inhibitory NKR-P1B receptor. During MCMV infection, the NKR-P1B(-)Ly49H(+) NK cell subset proliferates to constitute the bulk of the NK cell population. This NK cell subset also confers better protection against MCMV infection compared with the NKR-P1B(+)Ly49H(+) subset. The two populations are composed of cells that differ in their surface expression of receptors such as Ly49C/I and NKG2A/C/E, as well as developmental markers, CD27 and CD11b, and the high-affinity IL-2R (CD25) following infection. Although the NKR-P1B(+) NK cells can produce effector molecules such as IFNs and granzymes, their proliferation is inhibited during infection. A similar phenotype in MCMV-infected Clr-b-deficient mice, which lack the ligand for NKR-P1B, suggests the involvement of ligands other than the host Clr-b. Most interestingly, genetic deficiency of the NKR-P1B, but not Clr-b, results in accelerated virus clearance and recovery from MCMV infection. This study is particularly significant because the mouse NKR-P1B:Clr-b receptor:ligand system represents the closest homolog of the human NKR-P1A:LLT1 system and may have a direct relevance to human CMV infection.
Collapse
Affiliation(s)
- Mir Munir A Rahim
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada;
| | - Andrew Wight
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Ahmad Bakur Mahmoud
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada; College of Applied Medical Sciences, Taibah University, 30001 Madinah Munawwarah, Saudi Arabia
| | - Oscar A Aguilar
- Department of Immunology, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario M4N 3M5, Canada; and
| | - Seung-Hwan Lee
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| | - Silvia M Vidal
- Department of Human Genetics, McGill University, Montreal, Quebec H3G 0B1, Canada
| | - James R Carlyle
- Department of Immunology, Sunnybrook Research Institute, University of Toronto, Toronto, Ontario M4N 3M5, Canada; and
| | - Andrew P Makrigiannis
- Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada
| |
Collapse
|
137
|
Yang J, Wang H, Wang M, Liu B, Xu H, Xu F, Zhao D, Hu B, Zhao N, Wang J, Liu D, Tang L, He F. Involvement of LSECtin in the hepatic natural killer cell response. Biochem Biophys Res Commun 2016; 476:49-55. [PMID: 27184407 PMCID: PMC7092936 DOI: 10.1016/j.bbrc.2016.05.072] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 05/13/2016] [Indexed: 12/23/2022]
Abstract
Accumulating evidence has indicated that natural killer cells (NK cells) play an important role in immune responses generated in the liver. However, the underlying molecular basis for local immune regulation is poorly understood. Mice were intraperitoneally injected with polyinosinic-polycytidylic acid (PolyI:C) at a dose of 20 mg/kg body wt. The percentage and absolute number of NK cells in the liver were analysed with flow cytometry. LSECtin knockout mice and LSECtin cDNA plasmids were used for analyze the role of LSECtin in hepatic NK cell regulation in vivo. Here, we show that the C-type lectin LSECtin, a member of the DC-SIGN family, is a novel liver regulator for NK cells. LSECtin could bind to NK cells in a carbohydrate-dependent manner and could regulate the number of hepatic NK cells. In the NK cell-mediated acute liver injury model induced with PolyI:C, the exogenous expression of LSECtin accelerated NK cell-induced liver injury, whereas the absence of LSECtin ameliorated this condition. Our results reveal that LSECtin is a novel, liver-specific NK cell regulator that may be a target for the treatment of inflammatory diseases in the liver.
Collapse
Affiliation(s)
- Juntao Yang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China; State Key Laboratory of Medical Molecular Biology, Department of Biochemistry and Molecular Biology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, 10005, Beijing, China.
| | - He Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Min Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Biao Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Hui Xu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Feng Xu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Dianyuan Zhao
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Bin Hu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Na Zhao
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Junyi Wang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Di Liu
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China
| | - Li Tang
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China.
| | - Fuchu He
- State Key Laboratory of Proteomics, Beijing Proteome Research Center, Beijing Institute of Radiation Medicine, Beijing, 102206, China.
| |
Collapse
|
138
|
García-López R, de la Morena-Barrio ME, Alsina L, Pérez-Dueñas B, Jaeken J, Serrano M, Casado M, Hernández-Caselles T. Natural Killer Cell Receptors and Cytotoxic Activity in Phosphomannomutase 2 Deficiency (PMM2-CDG). PLoS One 2016; 11:e0158863. [PMID: 27415628 PMCID: PMC4944953 DOI: 10.1371/journal.pone.0158863] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 06/23/2016] [Indexed: 11/18/2022] Open
Abstract
Background PMM2-CDG is the most common N-glycosylation defect and shows an increased risk of recurrent and/or severe, sometimes fatal, infections in early life. We hypothesized that natural killer (NK) cells, as important mediators of the immune response against microbial pathogens and regulators of adaptive immunity, might be affected in this genetic disorder. Objective To evaluate possible defects on PMM2-CDG NK peripheral blood cell number, killing activity and expression of membrane receptors. Methods We studied fresh and activated NK cells from twelve PMM2-CDG cells. The number and expression of lymphoid surface receptors were studied by flow cytometry. The NK responsiveness (frequency of degranulated NK cells) and killing activity against K562 target cells was determined in the NK cytotoxicity assay. Results We found an increase of blood NK cells in three patients with a severe phenotype. Two of them, who had suffered from moderate/severe viral infections during their first year of life, also had reduced T lymphocyte numbers. Patient activated NK cells showed increased expression of CD54 adhesion molecule and NKG2D and NKp46 activating receptors. NKp46 and 2B4 expression was inversely correlated with the expression of NKG2D in activated PMM2-CDG cells. Maximal NK activity against K562 target cells was similar in control and PMM2-CDG cells. Interestingly, the NK cell responsiveness was higher in patient cells. NKG2D and specially CD54 increased surface expression significantly correlated with the increased NK cell cytolytic activity according to the modulation of the killer activity by expression of triggering receptors and adhesion molecules. Conclusions Our results indicate that hypoglycosylation in PMM2-CDG altered NK cell reactivity against target cells and the expression of CD54 and NKG2D, NKp46 and 2B4 activating receptors during NK cell activation. This suggests a defective control of NK cell killing activity and the overall anti-viral immune response in PMM2-CDG patients. The present work improves our understanding of the immunological functions in PMM2-CDG and possibly in other CDG-I types.
Collapse
Affiliation(s)
- Roberto García-López
- Departamento de Bioquímica, Biología Molecular B e Inmunología, Facultad de Medicina, IMIB-University of Murcia, Murcia, Spain
| | - María Eugenia de la Morena-Barrio
- Centro Regional de Hemodonación, Servicio de Hematología y Oncología Médica, Hospital Universitario Morales Meseguer, IMIB-Arrixaca, Murcia, Spain
- CIBERER, Valencia, Spain
| | - Laia Alsina
- Sección de Alergia e Inmunología Clínica, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Belén Pérez-Dueñas
- Departamento de Neurología Infantil, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Jaak Jaeken
- Center for Metabolic Diseases, Universitair Ziekenhuis Gasthuisberg, KULeuven, Leuven, Belgium
| | - Mercedes Serrano
- Departamento de Neurología Infantil, Hospital Sant Joan de Déu, Barcelona, Spain
| | - Mercedes Casado
- Departamento de Bioquímica Clínica y Neuropediatría, Hospital Sant Joan de Deu CIBERER-ISCIII, Barcelona, Spain
| | - Trinidad Hernández-Caselles
- Departamento de Bioquímica, Biología Molecular B e Inmunología, Facultad de Medicina, IMIB-University of Murcia, Murcia, Spain
- * E-mail:
| |
Collapse
|
139
|
Pallmer K, Oxenius A. Recognition and Regulation of T Cells by NK Cells. Front Immunol 2016; 7:251. [PMID: 27446081 PMCID: PMC4919350 DOI: 10.3389/fimmu.2016.00251] [Citation(s) in RCA: 109] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2016] [Accepted: 06/13/2016] [Indexed: 12/22/2022] Open
Abstract
Regulation of T cell responses by innate lymphoid cells (ILCs) is increasingly documented and studied. Direct or indirect crosstalk between ILCs and T cells early during and after T cell activation can affect their differentiation, polarization, and survival. Natural killer (NK) cells that belong to the ILC1 group were initially described for their function in recognizing and eliminating "altered self" and as source of early inflammatory cytokines, most notably type II interferon. Using signals conveyed by various germ-line encoded activating and inhibitory receptors, NK cells are geared to sense sudden cellular changes that can be caused by infection events, malignant transformation, or cellular stress responses. T cells, when activated by TCR engagement (signal 1), costimulation (signal 2), and cytokines (signal 3), commit to a number of cellular alterations, including entry into rapid cell cycling, metabolic changes, and acquisition of effector functions. These abrupt changes may alert NK cells, and T cells might thereby expose themselves as NK cell targets. Here, we review how activated T cells can be recognized and regulated by NK cells and what consequences such regulation bears for T cell immunity in the context of vaccination, infection, or autoimmunity. Conversely, we will discuss mechanisms by which activated T cells protect themselves against NK cell attack and outline the significance of this safeguard mechanism.
Collapse
Affiliation(s)
| | - Annette Oxenius
- Institute of Microbiology, ETH Zürich , Zürich , Switzerland
| |
Collapse
|
140
|
Iraolagoitia XLR, Spallanzani RG, Torres NI, Araya RE, Ziblat A, Domaica CI, Sierra JM, Nuñez SY, Secchiari F, Gajewski TF, Zwirner NW, Fuertes MB. NK Cells Restrain Spontaneous Antitumor CD8+ T Cell Priming through PD-1/PD-L1 Interactions with Dendritic Cells. THE JOURNAL OF IMMUNOLOGY 2016; 197:953-61. [PMID: 27342842 DOI: 10.4049/jimmunol.1502291] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2015] [Accepted: 05/27/2016] [Indexed: 12/31/2022]
Abstract
Despite the classical function of NK cells in the elimination of tumor and of virus-infected cells, evidence for a regulatory role for NK cells has been emerging in different models of autoimmunity, transplantation, and viral infections. However, this role has not been fully explored in the context of a growing tumor. In this article, we show that NK cells can limit spontaneous cross-priming of tumor Ag-specific CD8(+) T cells, leading to reduced memory responses. After challenge with MC57 cells transduced to express the model Ag SIY (MC57.SIY), NK cell-depleted mice exhibited a significantly higher frequency of SIY-specific CD8(+) T cells, with enhanced IFN-γ production and cytotoxic capability. Depletion of NK cells resulted in a CD8(+) T cell population skewed toward an effector memory T phenotype that was associated with enhanced recall responses and delayed tumor growth after a secondary tumor challenge with B16.SIY cells. Dendritic cells (DCs) from NK cell-depleted tumor-bearing mice exhibited a more mature phenotype. Interestingly, tumor-infiltrating and tumor-draining lymph node NK cells displayed an upregulated expression of the inhibitory molecule programmed death ligand 1 that, through interaction with programmed death-1 expressed on DCs, limited DC activation, explaining their reduced ability to induce tumor-specific CD8(+) T cell priming. Our results suggest that NK cells can, in certain contexts, have an inhibitory effect on antitumor immunity, a finding with implications for immunotherapy in the clinic.
Collapse
Affiliation(s)
- Ximena L Raffo Iraolagoitia
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Raul G Spallanzani
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Nicolás I Torres
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Romina E Araya
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Andrea Ziblat
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Carolina I Domaica
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Jessica M Sierra
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Sol Y Nuñez
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Florencia Secchiari
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina
| | - Thomas F Gajewski
- Department of Pathology, The University of Chicago, Chicago, IL 60637; Section of Hematology/Oncology, Department of Medicine, The University of Chicago, Chicago, IL 60637
| | - Norberto W Zwirner
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina; Departamento de Microbiología, Parasitología e Inmunología, Facultad de Medicina, Universidad de Buenos Aires, Ciudad de Buenos Aires C1121ABG, Argentina; and Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
| | - Mercedes B Fuertes
- Laboratorio de Fisiopatología de la Inmunidad Innata, Instituto de Biología y Medicina Experimental, Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad de Buenos Aires C1428ADN, Argentina; Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires C1428EGA, Argentina
| |
Collapse
|
141
|
Schuster IS, Coudert JD, Andoniou CE, Degli-Esposti MA. "Natural Regulators": NK Cells as Modulators of T Cell Immunity. Front Immunol 2016; 7:235. [PMID: 27379097 PMCID: PMC4905977 DOI: 10.3389/fimmu.2016.00235] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 05/31/2016] [Indexed: 12/28/2022] Open
Abstract
Natural killer (NK) cells are known as frontline responders capable of rapidly mediating a response upon encountering transformed or infected cells. Recent findings indicate that NK cells, in addition to acting as innate effectors, can also regulate adaptive immune responses. Here, we review recent studies on the immunoregulatory function of NK cells with a specific focus on their ability to affect the generation of early, as well as long-term antiviral T cell responses, and their role in modulating immune pathology and disease. In addition, we summarize the current knowledge of the factors governing regulatory NK cell responses and discuss origin, tissue specificity, and open questions about the classification of regulatory NK cells as classical NK cells versus group 1 innate lymphoid cells.
Collapse
Affiliation(s)
- Iona S Schuster
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, WA, Australia; Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia
| | - Jerome D Coudert
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, WA, Australia; Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia
| | - Christopher E Andoniou
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, WA, Australia; Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia
| | - Mariapia A Degli-Esposti
- Immunology and Virology Program, Centre for Ophthalmology and Visual Science, The University of Western Australia, Perth, WA, Australia; Centre for Experimental Immunology, Lions Eye Institute, Nedlands, WA, Australia
| |
Collapse
|
142
|
Duan X, Lu J, Zhou K, Wang J, Wu J, Fu Gao G, Fang M. NK-cells are involved in thymic atrophy induced by influenza A virus infection. J Gen Virol 2016; 96:3223-3235. [PMID: 26346306 DOI: 10.1099/jgv.0.000276] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
NK-cells have traditionally been viewed as innate effector lymphocytes that serve as a first line of defence against a range of viruses and tumours. More recently, the importance of NK-cell immunoregulatory functions has been highlighted. NK-cells can inhibit antiviral T-cell responses, and also play an important role in controlling harmful T-cell activity in autoimmunity and transplantation settings. Moreover, immunopathological effects of NK-cells during infection have been reported. Nevertheless, the phenotype and function of NK-cells in the thymus during influenza virus infection is not understood. In the present study, we demonstrated that influenza A virus (IAV) infection in mice led to severe thymic atrophy caused by increased thymic T-cell apoptosis and suppressed proliferation. We found that NK-cells played a critical role in this phenotype. IFN-c production by NK-cells was a contributing factor for thymic atrophy during IAV infection. Taken together, our data indicate that NK-cells are involved in the thymic atrophy associated with IAV infection.
Collapse
Affiliation(s)
- Xuefeng Duan
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, PR China.,Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, PR China
| | - Jiao Lu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, PR China.,Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Kai Zhou
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, PR China.,Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, PR China
| | - Jing Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, PR China.,Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, PR China.,University of Chinese Academy of Sciences, Beijing, PR China
| | - Jihua Wu
- Department of Pathology, 306 Hospital of PLA, Beijing, PR China
| | - George Fu Gao
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, PR China.,Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, PR China
| | - Min Fang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, Beijing, PR China.,Center for Influenza Research and Early-warning (CASCIRE), Chinese Academy of Sciences, Beijing, PR China
| |
Collapse
|
143
|
Taqi MM, Waseem D, Ismatullah H, Haider SA, Faisal M. In silico transcriptional regulation and functional analysis of dengue shock syndrome associated SNPs in PLCE1 and MICB genes. Funct Integr Genomics 2016; 16:335-45. [PMID: 27038471 PMCID: PMC4850189 DOI: 10.1007/s10142-016-0489-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 03/16/2016] [Accepted: 03/17/2016] [Indexed: 12/24/2022]
Abstract
Single nucleotide polymorphisms (SNPs) in PLCE1 and MICB genes increase risk for the development of dengue shock syndrome (DSS). We used Bioinformatics tools to predict alterations at the transcriptional and posttranslational levels driven by PLCE1 and MICB SNPs associated with DSS. Functional and phenotypic analysis conducted to determine deleterious SNPs and impact of amino acid substitution on the structure and function of proteins identified rs2274223 (H1619R) as deleterious to protein coding as it induces structural change in the C2 domain of PLCε, with the mutant residue more positively charged than the wild-type residue (RMSD score, 1.75 Å). Moreover, rs2274223 condenses the chromatin-repressing PLCε expression in DSS. Briefly, this study presents the impact of a single nucleotide transition at SNPs associated with DSS on differential protein binding patterns with PLCE1 and MICB genes and on protein structure modification and their possible role in the pathogenesis of DSS.
Collapse
Affiliation(s)
- Malik Mumtaz Taqi
- Division of Mental Health and Addiction, NORMENT, University of Oslo, Oslo, Norway
| | - Durdana Waseem
- Department of Pharmacy, Quaid-i-Azam University, Islamabad, Pakistan
| | - Humaira Ismatullah
- Research Center for Modelling and Simulation (RCMS), National University of Science and Technology, Islamabad, Pakistan
| | - Syed Aleem Haider
- National Center for Bioinformatics, Quaid-i-Azam University, Islamabad, Pakistan
| | - Muhammad Faisal
- Faculty of Health Studies, University of Bradford, BD7 1DP, Bradford, UK.
- Bradford Institute for Health Research, Bradford Teaching Hospitals NHS Foundation Trust, Bradford, UK.
| |
Collapse
|
144
|
Zheng M, Sun R, Wei H, Tian Z. NK Cells Help Induce Anti-Hepatitis B Virus CD8+ T Cell Immunity in Mice. THE JOURNAL OF IMMUNOLOGY 2016; 196:4122-31. [PMID: 27183639 DOI: 10.4049/jimmunol.1500846] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2015] [Accepted: 03/16/2016] [Indexed: 12/12/2022]
Abstract
Although recent clinical studies demonstrate that NK cell function is impaired in hepatitis B virus (HBV)-persistent patients, whether or how NK cells play a role in anti-HBV adaptive immunity remains to be explored. Using a mouse model mimicking acute HBV infection by hydrodynamic injection of an HBV plasmid, we observed that although serum hepatitis B surface Ag and hepatitis B envelope Ag were eliminated within 3 to 4 wk, HBV might persist for >8 wk in CD8(-/-) mice and that adoptive transfer of anti-HBV CD8(+) T cells restored the ability to clear HBV in HBV-carrier Rag1(-/-) mice. These results indicate that CD8(+) T cells are critical in HBV elimination. Furthermore, NK cells increased IFN-γ production after HBV plasmid injection, and NK cell depletion led to significantly increased HBV persistence along with reduced frequency of hepatitis B core Ag-specific CD8(+) T cells. Adoptive transfer of IFN-γ-sufficient NK cells restored donor CD8(+) T cell function, indicating that NK cells positively regulated CD8(+) T cells via secreting IFN-γ. We also observed that NK cell depletion correlated with decreased effector memory CD8(+) T cell frequencies. Importantly, adoptive transfer experiments showed that NK cells were involved in anti-HBV CD8(+) T cell recall responses. Moreover, DX5(+)CD49a(-) conventional, but not DX5(-)CD49a(+) liver-resident, NK cells were involved in improving CD8(+) T cell responses against HBV. Overall, the current study reveals that NK cells, especially DX5(+)CD49a(-) conventional NK cells, promote the antiviral activity of CD8(+) T cell responses via secreting IFN-γ in a mouse model mimicking acute HBV infection.
Collapse
Affiliation(s)
- Meijuan Zheng
- Institute of Immunology, Key Laboratory of Innate Immunity and Chronic Disease of Chinese Academy of Science, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, China; Department of Clinical Laboratory, First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, China; and
| | - Rui Sun
- Institute of Immunology, Key Laboratory of Innate Immunity and Chronic Disease of Chinese Academy of Science, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, China;
| | - Haiming Wei
- Institute of Immunology, Key Laboratory of Innate Immunity and Chronic Disease of Chinese Academy of Science, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 230027, China
| | - Zhigang Tian
- Institute of Immunology, Key Laboratory of Innate Immunity and Chronic Disease of Chinese Academy of Science, School of Life Sciences and Medical Center, University of Science and Technology of China, Hefei, Anhui 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, Zhejiang 310003, China
| |
Collapse
|
145
|
NLRC5 shields T lymphocytes from NK-cell-mediated elimination under inflammatory conditions. Nat Commun 2016; 7:10554. [PMID: 26861112 PMCID: PMC4749981 DOI: 10.1038/ncomms10554] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2015] [Accepted: 12/26/2015] [Indexed: 12/18/2022] Open
Abstract
NLRC5 is a transcriptional regulator of MHC class I (MHCI), which maintains high MHCI expression particularly in T cells. Recent evidence highlights an important NK–T-cell crosstalk, raising the question on whether NLRC5 specifically modulates this interaction. Here we show that NK cells from Nlrc5-deficient mice exhibit moderate alterations in inhibitory receptor expression and responsiveness. Interestingly, NLRC5 expression in T cells is required to protect them from NK-cell-mediated elimination upon inflammation. Using T-cell-specific Nlrc5-deficient mice, we show that NK cells surprisingly break tolerance even towards ‘self' Nlrc5-deficient T cells under inflammatory conditions. Furthermore, during chronic LCMV infection, the total CD8+ T-cell population is severely decreased in these mice, a phenotype reverted by NK-cell depletion. These findings strongly suggest that endogenous T cells with low MHCI expression become NK-cell targets, having thus important implications for T-cell responses in naturally or therapeutically induced inflammatory conditions. NK cell tolerance to self-MHCI levels is calibrated during their development. Here the authors show that this tolerance is overcome by an inflammatory environment and that NLRC5 protects T cells from NK cell-mediated elimination by maintaining high MHCI expression.
Collapse
|
146
|
Polygenic mutations in the cytotoxicity pathway increase susceptibility to develop HLH immunopathology in mice. Blood 2016; 127:2113-21. [PMID: 26864340 DOI: 10.1182/blood-2015-12-688960] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2015] [Accepted: 02/06/2016] [Indexed: 02/06/2023] Open
Abstract
Hemophagocytic lymphohistiocytosis (HLH) is a life-threatening hyperinflammatory disease. Inherited forms of HLH are caused by biallelic mutations in several effectors of granule-dependent lymphocyte-mediated cytotoxicity. A small proportion of patients with a so-called "secondary" form of HLH, which develops in the aftermath of infection, autoimmunity, or cancer, carry a monoallelic mutation in one or more HLH-associated genes. Although this observation suggests that HLH may have a polygenic mode of inheritance, the latter is very difficult to prove in humans. In order to determine whether the accumulation of partial genetic defects in lymphocyte-mediated cytotoxicity can contribute to the development of HLH, we generated mice that were doubly or triply heterozygous for mutations in HLH-associated genes, those coding for perforin, Rab27a, and syntaxin-11. We found that the accumulation of monoallelic mutations did indeed increase the risk of developing HLH immunopathology after lymphocytic choriomeningitis virus infection. In mechanistic terms, the accumulation of heterozygous mutations in the two degranulation genes Rab27a and syntaxin-11, impaired the dynamics and secretion of cytotoxic granules at the immune synapse of T lymphocytes. In addition, the accumulation of heterozygous mutations within the three genes impaired natural killer lymphocyte cytotoxicity in vivo. The genetic defects can be ranked in terms of the severity of the resulting HLH manifestations. Our results form the basis of a polygenic model of the occurrence of secondary HLH.
Collapse
|
147
|
Gillespie AL, Teoh J, Lee H, Prince J, Stadnisky MD, Anderson M, Nash W, Rival C, Wei H, Gamache A, Farber CR, Tung K, Brown MG. Genomic Modifiers of Natural Killer Cells, Immune Responsiveness and Lymphoid Tissue Remodeling Together Increase Host Resistance to Viral Infection. PLoS Pathog 2016; 12:e1005419. [PMID: 26845690 PMCID: PMC4742223 DOI: 10.1371/journal.ppat.1005419] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Accepted: 01/05/2016] [Indexed: 02/06/2023] Open
Abstract
The MHC class I Dk molecule supplies vital host resistance during murine cytomegalovirus (MCMV) infection. Natural killer (NK) cells expressing the Ly49G2 inhibitory receptor, which specifically binds Dk, are required to control viral spread. The extent of Dk-dependent host resistance, however, differs significantly amongst related strains of mice, C57L and MA/My. As a result, we predicted that relatively small-effect modifier genetic loci might together shape immune cell features, NK cell reactivity, and the host immune response to MCMV. A robust Dk-dependent genetic effect, however, has so far hindered attempts to identify additional host resistance factors. Thus, we applied genomic mapping strategies and multicolor flow cytometric analysis of immune cells in naive and virus-infected hosts to identify genetic modifiers of the host immune response to MCMV. We discovered and validated many quantitative trait loci (QTL); these were mapped to at least 19 positions on 16 chromosomes. Intriguingly, one newly discovered non-MHC locus (Cmv5) controlled splenic NK cell accrual, secondary lymphoid organ structure, and lymphoid follicle development during MCMV infection. We infer that Cmv5 aids host resistance to MCMV infection by expanding NK cells needed to preserve and protect essential tissue structural elements, to enhance lymphoid remodeling and to increase viral clearance in spleen. Uncovering the genetic basis of resistance to viral infection and disease is critical to learning about how immune defenses might be adjusted, how to design better vaccines, and how to elicit effectual immune protection in human populations. Prior studies have shown that both MHC and non-MHC genes support host defenses, or endow specialized immune cells with efficient sensing or responsiveness to infection. Many additional resistance genes remain to be identified, including difficult to detect smaller-effect alleles, which might add to or interact with other genetic factors. Our grasp of the complex interaction involving these genetic elements is thus inadequate. We combined genomic and multiparameter phenotypic analyses to map and identify host genes that control immune cells or sensitivity to viral infection. We reasoned that some might also affect viral clearance. Thus we enumerated a range of immune cell traits in mice before and after infection, which permitted genomic analysis of viral immunity, and mapping of genetic modifiers for each trait. Our study demonstrates that distinct loci collectively regulate both NK cells and host resistance, which provides a framework to understand the genetic interactions, and a variety of potential novel targets to adjust NK cell functionality and host resistance to infection.
Collapse
Affiliation(s)
- Alyssa Lundgren Gillespie
- Department of Medicine, Division of Nephrology, University of Virginia, Charlottesville, Virginia, United States of America
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
| | - Jeffrey Teoh
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Heather Lee
- Department of Biology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Jessica Prince
- Department of Medicine, Division of Nephrology, University of Virginia, Charlottesville, Virginia, United States of America
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
| | - Michael D. Stadnisky
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Monique Anderson
- Department of Pathology, University of Virginia, Charlottesville, Virginia, United States of America
| | - William Nash
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Claudia Rival
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Pathology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Hairong Wei
- Department of Medicine, Division of Nephrology, University of Virginia, Charlottesville, Virginia, United States of America
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
| | - Awndre Gamache
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Charles R. Farber
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Public Health Sciences, University of Virginia, Charlottesville, Virginia, United States of America
- Center for Public Health Genomics, University of Virginia, Charlottesville, Virginia, United States of America
| | - Kenneth Tung
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Pathology, University of Virginia, Charlottesville, Virginia, United States of America
| | - Michael G. Brown
- Department of Medicine, Division of Nephrology, University of Virginia, Charlottesville, Virginia, United States of America
- Beirne Carter Center for Immunology Research, University of Virginia, Charlottesville, Virginia, United States of America
- Department of Microbiology, Immunology and Cancer Biology, University of Virginia, Charlottesville, Virginia, United States of America
- * E-mail:
| |
Collapse
|
148
|
Wang L, Wang K, Zou ZQ. Crosstalk between innate and adaptive immunity in hepatitis B virus infection. World J Hepatol 2015; 7:2980-2991. [PMID: 26730277 PMCID: PMC4691701 DOI: 10.4254/wjh.v7.i30.2980] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 11/11/2015] [Accepted: 12/11/2015] [Indexed: 02/06/2023] Open
Abstract
Hepatitis B virus (HBV) infection is a major public health problem worldwide. HBV is not directly cytotoxic to infected hepatocytes; the clinical outcome of infection results from complicated interactions between the virus and the host immune system. In acute HBV infection, initiation of a broad, vigorous immune response is responsible for viral clearance and self-limited inflammatory liver disease. Effective and coordinated innate and adaptive immune responses are critical for viral clearance and the development of long-lasting immunity. Chronic hepatitis B patients fail to mount efficient innate and adaptive immune responses to the virus. In particular, HBV-specific cytotoxic T cells, which are crucial for HBV clearance, are hyporesponsiveness to HBV infection. Accumulating experimental evidence obtained from the development of animal and cell line models has highlighted the importance of innate immunity in the early control of HBV spread. The virus has evolved immune escape strategies, with higher HBV loads and HBV protein concentrations associated with increasing impairment of immune function. Therefore, treatment of HBV infection requires inhibition of HBV replication and protein expression to restore the suppressed host immunity. Complicated interactions exist not only between innate and adaptive responses, but also among innate immune cells and different components of adaptive responses. Improved insight into these complex interactions are important in designing new therapeutic strategies for the treatment HBV infection. In this review, we summarize the current knowledge regarding the cross-talk between the innate and adaptive immune responses and among different immunocytes in HBV infection.
Collapse
|
149
|
Nedjadi T, El-Kafrawy S, Sohrab SS, Desprès P, Damanhouri G, Azhar E. Tackling dengue fever: Current status and challenges. Virol J 2015; 12:212. [PMID: 26645066 PMCID: PMC4673751 DOI: 10.1186/s12985-015-0444-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Accepted: 12/01/2015] [Indexed: 12/22/2022] Open
Abstract
According to recent statistics, 96 million apparent dengue infections were estimated worldwide in 2010. This figure is by far greater than the WHO prediction which indicates the rapid spread of this disease posing a growing threat to the economy and a major challenge to clinicians and health care services across the globe particularly in the affected areas.This article aims at bringing to light the current epidemiological and clinical status of the dengue fever. The relationship between genetic mutations, single nucleotide polymorphism (SNP) and the pathophysiology of disease progression will be put into perspective. It will also highlight the recent advances in dengue vaccine development.Thus far, a significant progress has been made in unraveling the risk factors and understanding the molecular pathogenesis associated with the disease. However, further insights in molecular features of the disease and the development of animal models will enormously help improving the therapeutic interventions and potentially contribute to finding new preventive measures for population at risk.
Collapse
Affiliation(s)
- Taoufik Nedjadi
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Sherif El-Kafrawy
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Sayed S Sohrab
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Philippe Desprès
- UMR PIMIT (I2T team), University of Reunion island, INSERM U1187, CNRS 9192, IRD 249, Technology Platform CYROI, 2 rue Maxime Rivière Saint-Clotilde, La Reunion, 97491, France.
| | - Ghazi Damanhouri
- King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
| | - Esam Azhar
- Special Infectious Agents Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia.
| |
Collapse
|
150
|
Luci C, Bekri S, Bihl F, Pini J, Bourdely P, Nouhen K, Malgogne A, Walzer T, Braud VM, Anjuère F. NKp46+ Innate Lymphoid Cells Dampen Vaginal CD8 T Cell Responses following Local Immunization with a Cholera Toxin-Based Vaccine. PLoS One 2015; 10:e0143224. [PMID: 26630176 PMCID: PMC4668070 DOI: 10.1371/journal.pone.0143224] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 11/02/2015] [Indexed: 01/06/2023] Open
Abstract
Innate and adaptive immune cells work in concert to generate efficient protection at mucosal surface. Vaginal mucosa is an epithelial tissue that contains innate and adaptive immune effector cells. Our previous studies demonstrated that vaginal administration of Cholera toxin -based vaccines generate antigen-specific CD8 T cells through the stimulation of local dendritic cells (DC). Innate lymphoid cells (ILC) are a group of lymphocytes localized in epithelial tissues that have important immune functions against pathogens and in tissue homeostasis. Their contribution to vaccine-induced mucosal T cell responses is an important issue for the design of protective vaccines. We report here that the vaginal mucosa contains a heterogeneous population of NKp46+ ILC that includes conventional NK cells and ILC1-like cells. We show that vaginal NKp46+ ILC dampen vaccine-induced CD8 T cell responses generated after local immunization. Indeed, in vivo depletion of NKp46+ ILC with anti-NK1.1 antibody or NKG2D blockade increases the magnitude of vaginal OVA-specific CD8 T cells. Furthermore, such treatments also increase the number of DC in the vagina. NKG2D ligands being expressed by vaginal DC but not by CD8 T cells, these results support that NKp46+ ILC limit mucosal CD8 T cell responses indirectly through the NKG2D-dependent elimination of vaginal DC. Our data reveal an unappreciated role of NKp46+ ILC in the regulation of mucosal CD8 T cell responses.
Collapse
Affiliation(s)
- Carmelo Luci
- Université de Nice Sophia Antipolis, Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7275, Sophia Antipolis, France
- Institut National de la Santé et de la Recherche Médicale, Institut de Pharmacologie Moléculaire et Cellulaire, France
- * E-mail:
| | - Selma Bekri
- Université de Nice Sophia Antipolis, Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7275, Sophia Antipolis, France
| | - Franck Bihl
- Université de Nice Sophia Antipolis, Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7275, Sophia Antipolis, France
| | - Jonathan Pini
- Université de Nice Sophia Antipolis, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7370, Laboratoire de PhysioMédecine Moléculaire, Nice, France
| | - Pierre Bourdely
- Université de Nice Sophia Antipolis, Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7275, Sophia Antipolis, France
| | - Kelly Nouhen
- Université de Nice Sophia Antipolis, Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7275, Sophia Antipolis, France
| | - Angélique Malgogne
- Université de Nice Sophia Antipolis, Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7275, Sophia Antipolis, France
| | - Thierry Walzer
- Université de Lyon 1, Ecole Normale Supérieure de Lyon, Institut National de la Santé et de la Recherche Médicale U1111, Centre National de la Recherche Scientifique, Unité Mixte de Recherche 5308, Centre International de recherche en infectiologie, Lyon, France
| | - Véronique M. Braud
- Université de Nice Sophia Antipolis, Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7275, Sophia Antipolis, France
| | - Fabienne Anjuère
- Université de Nice Sophia Antipolis, Institut de Pharmacologie Moléculaire et Cellulaire, Sophia Antipolis, France
- Centre National de la Recherche Scientifique, Unité Mixte de Recherche 7275, Sophia Antipolis, France
- Institut National de la Santé et de la Recherche Médicale, Institut de Pharmacologie Moléculaire et Cellulaire, France
| |
Collapse
|