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Marri L, Contini P, Ivaldi F, Schiavi C, Magnani O, Vassallo C, Guastalla A, Traversone N, Angelini C, Del Zotto G, De Maria A, De Palma R. Evaluation of Frequency of CMV Replication and Disease Complications Reveals New Cellular Defects and a Time Dependent Pattern in CVID Patients. J Clin Immunol 2024; 44:142. [PMID: 38847943 PMCID: PMC11161436 DOI: 10.1007/s10875-024-01744-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 05/28/2024] [Indexed: 06/10/2024]
Abstract
PURPOSE Common Variable Immunodeficiency (CVID) is characterized by hypogammaglobulinemia and failure of specific antibody production due to B-cell defects. However, studies have documented various T-cell abnormalities, potentially linked to viral complications. The frequency of Cytomegalovirus (CMV) replication in CVID cohorts is poorly studied. To address this gap in knowledge, we set up an observational study with the objectives of identifying CVID patients with active viraemia (CMV, Epstein-Barr virus (EBV)), evaluating potential correlations with immunophenotypic characteristics, clinical outcome, and the dynamic progression of clinical phenotypes over time. METHODS 31 CVID patients were retrospectively analysed according to viraemia, clinical and immunologic characteristics. 21 patients with non CVID humoral immunodeficiency were also evaluated as control. RESULTS Active viral replication of CMV and/or EBV was observed in 25% of all patients. CMV replication was detected only in CVID patients (16%). CVID patients with active viral replication showed reduced HLA-DR+ NK counts when compared with CMV-DNA negative CVID patients. Viraemic patients had lower counts of LIN-DNAMbright and LIN-CD16+ inflammatory lymphoid precursors which correlated with NK-cell subsets. Analysis of the dynamic progression of CVID clinical phenotypes over time, showed that the initial infectious phenotype progressed to complicated phenotypes with time. All CMV viraemic patients had complicated disease. CONCLUSION Taken together, an impaired production of inflammatory precursors and NK activation is present in CVID patients with active viraemia. Since "Complicated" CVID occurs as a function of disease duration, there is need for an accurate evaluation of this aspect to improve classification and clinical management of CVID patients.
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Affiliation(s)
- Luca Marri
- Department of Internal Medicine (DIMI), University of Genoa, Genoa, Italy
- Unit of Clinical Immunology and Translational Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
- Department of Experimental Medicine (DIMES), University of Genoa, Genoa, Italy
| | - Paola Contini
- Department of Internal Medicine (DIMI), University of Genoa, Genoa, Italy
| | - Federico Ivaldi
- Department of Internal Medicine (DIMI), University of Genoa, Genoa, Italy
| | - Chiara Schiavi
- Unit of Clinical Immunology and Translational Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Ottavia Magnani
- Unit of Clinical Immunology and Translational Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Chiara Vassallo
- Unit of Clinical Immunology and Translational Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Andrea Guastalla
- Unit of Clinical Immunology and Translational Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Noemi Traversone
- Department of Internal Medicine (DIMI), University of Genoa, Genoa, Italy
- Unit of Clinical Immunology and Translational Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy
| | - Claudia Angelini
- Institute for Applied Mathematics "Mauro Picone", National Research Council, Naples, Italy
| | - Genny Del Zotto
- Integrated Department of Services and Laboratories, IRCCS Istituto Giannina Gaslini, Genoa, Italy
| | - Andrea De Maria
- Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy.
- Infections in Immunocompromised Host Unit, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
| | - Raffaele De Palma
- Department of Internal Medicine (DIMI), University of Genoa, Genoa, Italy.
- Unit of Clinical Immunology and Translational Medicine, IRCCS Ospedale Policlinico San Martino, Genoa, Italy.
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2
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Mengistu DT, Curtis JL, Freeman CM. A model of dysregulated crosstalk between dendritic, natural killer, and regulatory T cells in chronic obstructive pulmonary disease. Trends Immunol 2024; 45:428-441. [PMID: 38763820 PMCID: PMC11315412 DOI: 10.1016/j.it.2024.04.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 04/24/2024] [Accepted: 04/25/2024] [Indexed: 05/21/2024]
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by infiltration of the airways and lung parenchyma by inflammatory cells. Lung pathology results from the cumulative effect of complex and aberrant interactions between multiple cell types. However, three cell types, natural killer cells (NK), dendritic cells (DCs), and regulatory T cells (Tregs), are understudied and underappreciated. We propose that their mutual interactions significantly contribute to the development of COPD. Here, we highlight recent advances in NK, DC, and Treg biology with relevance to COPD, discuss their pairwise bidirectional interactions, and identify knowledge gaps that must be bridged to develop novel therapies. Understanding their interactions will be crucial for therapeutic use of autologous Treg, an approach proving effective in other diseases with immune components.
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Affiliation(s)
- Dawit T Mengistu
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI, USA
| | - Jeffrey L Curtis
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI, USA; Pulmonary & Critical Care Medicine Division, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI, USA; Pulmonary and Critical Care Medicine Section, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA
| | - Christine M Freeman
- Graduate Program in Immunology, University of Michigan, Ann Arbor, MI, USA; Pulmonary & Critical Care Medicine Division, Department of Internal Medicine, University of Michigan Health System, Ann Arbor, MI, USA; Research Service, VA Ann Arbor Healthcare System, Ann Arbor, MI, USA.
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3
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Vuscan P, Kischkel B, Joosten LAB, Netea MG. Trained immunity: General and emerging concepts. Immunol Rev 2024; 323:164-185. [PMID: 38551324 DOI: 10.1111/imr.13326] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 03/11/2024] [Indexed: 05/18/2024]
Abstract
Over the past decade, compelling evidence has unveiled previously overlooked adaptive characteristics of innate immune cells. Beyond their traditional role in providing short, non-specific protection against pathogens, innate immune cells can acquire antigen-agnostic memory, exhibiting increased responsiveness to secondary stimulation. This long-term de-facto innate immune memory, also termed trained immunity, is mediated through extensive metabolic rewiring and epigenetic modifications. While the upregulation of trained immunity proves advantageous in countering immune paralysis, its overactivation contributes to the pathogenesis of autoinflammatory and autoimmune disorders. In this review, we present the latest advancements in the field of innate immune memory followed by a description of the fundamental mechanisms underpinning trained immunity generation and different cell types that mediate it. Furthermore, we explore its implications for various diseases and examine current limitations and its potential therapeutic targeting in immune-related disorders.
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Affiliation(s)
- Patricia Vuscan
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Brenda Kischkel
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Leo A B Joosten
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Department of Medical Genetics, Iuliu Hatieganu University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Mihai G Netea
- Department of Internal Medicine and Radboud Institute for Molecular Life Sciences, Radboud University Medical Center, Nijmegen, The Netherlands
- Department for Immunology and Metabolism, Life and Medical Sciences Institute (LIMES), University of Bonn, Bonn, Germany
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4
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Legaz I, Navarro-Noguera E, Collados-Ros A, Bolarín JM, Muro M. Biomarkers of Innate Immunity and Immunological Susceptibility to Viral Infection in Patients with Alcoholic Cirrhosis. Biomedicines 2024; 12:336. [PMID: 38397937 PMCID: PMC10887413 DOI: 10.3390/biomedicines12020336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2023] [Revised: 01/24/2024] [Accepted: 01/30/2024] [Indexed: 02/25/2024] Open
Abstract
BACKGROUND The harmful effect of alcohol on the immune system may be due to both a direct action of the alcohol or its metabolites on immune cells as an indirect action modifying the different mechanisms of intercellular interaction. The interplay between stimulatory (aKIR) and inhibitory (iKIR) natural killer (NK) cell receptors and their corresponding human leukocyte antigen (HLA) ligands influences the outcome of virus infection. The aim was to analyze the influence of the KIR/HLA pair genetic profile in male alcoholic cirrhosis (AC) patients with and without viral infections to find susceptibility biomarkers that can help establish the risks and prevent viral infections. METHODS A total of 281 male AC patients were analyzed. The sociodemographic characteristics, viral hepatitis C (HCV), hepatitis B (HBV), and cytomegalovirus (CMV) infections were analyzed. Genomic DNA was extracted, and genetic the KIR/HLA profiles were investigated. A total of 6 KIR genes and their corresponding ligands (HLA-C) were analyzed. Patients were grouped into two groups: with and without associated viral infection. RESULTS A statistically significant increase in the combination of KIR2DL2+/C1C1 was observed in male AC patients with viral infection compared to those without viral infection (45.9% vs. 24.5%, p = 0.021). The analysis of KIR2DL3+/C1+ showed a high frequency comparing healthy controls and male AC patients without virus infection (85% vs. 76.4%; p = 0.026). The analysis of KIR2DL3+/C2C2 frequency showed a statistically significant increase comparing male AC patients without viral infection and healthy controls (23.6% vs. 15%; p = 0.026). CONCLUSIONS The genetic KIR2DL2+/C2C2 profiles may play a significant role in determining the vulnerability of male AC patients to viral infections, providing valuable insights for future research and potential therapeutic interventions.
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Affiliation(s)
- Isabel Legaz
- Department of Legal and Forensic Medicine, Biomedical Research Institute of Murcia (IMIB), Regional Campus of International Excellence “Campus Mare Nostrum”, Faculty of Medicine, University of Murcia (UMU), 30100 Murcia, Spain
| | - Elena Navarro-Noguera
- Digestive Medicine Service, Hospital Clinico Universitario Virgen de la Arrixaca (HCUVA), 30120 Murcia, Spain
| | - Aurelia Collados-Ros
- Department of Legal and Forensic Medicine, Biomedical Research Institute of Murcia (IMIB), Regional Campus of International Excellence “Campus Mare Nostrum”, Faculty of Medicine, University of Murcia (UMU), 30100 Murcia, Spain
| | - Jose Miguel Bolarín
- Department of Legal and Forensic Medicine, Biomedical Research Institute of Murcia (IMIB), Regional Campus of International Excellence “Campus Mare Nostrum”, Faculty of Medicine, University of Murcia (UMU), 30100 Murcia, Spain
| | - Manuel Muro
- Immunology Service, University Clinical Hospital “Virgen de la Arrixaca”—IMIB, 30120 Murcia, Spain
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5
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Naidoo K, Altfeld M. SARS-CoV-2 exploits innate miscommunication for persistence. Nat Immunol 2023; 24:1974-1975. [PMID: 37919526 DOI: 10.1038/s41590-023-01679-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2023]
Affiliation(s)
- Kewreshini Naidoo
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg, Germany
| | - Marcus Altfeld
- Department of Virus Immunology, Leibniz Institute of Virology, Hamburg, Germany.
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany.
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6
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Santosa EK, Sun JC. Cardinal features of immune memory in innate lymphocytes. Nat Immunol 2023; 24:1803-1812. [PMID: 37828377 PMCID: PMC10998651 DOI: 10.1038/s41590-023-01607-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/28/2023] [Indexed: 10/14/2023]
Abstract
The ability of vertebrates to 'remember' previous infections had once been attributed exclusively to adaptive immunity. We now appreciate that innate lymphocytes also possess memory properties akin to those of adaptive immune cells. In this Review, we draw parallels from T cell biology to explore the key features of immune memory in innate lymphocytes, including quantity, quality, and location. We discuss the signals that trigger clonal or clonal-like expansion in innate lymphocytes, and highlight recent studies that shed light on the complex cellular and molecular crosstalk between metabolism, epigenetics, and transcription responsible for differentiating innate lymphocyte responses towards a memory fate. Additionally, we explore emerging evidence that activated innate lymphocytes relocate and establish themselves in specific peripheral tissues during infection, which may facilitate an accelerated response program akin to those of tissue-resident memory T cells.
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Affiliation(s)
- Endi K Santosa
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY, USA
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Immunology and Microbial Pathogenesis Program, Weill Cornell Graduate School of Medical Sciences, Cornell University, New York, NY, USA.
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7
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Khan AUH, Ali AK, Marr B, Jo D, Ahmadvand S, Fong-McMaster C, Almutairi SM, Wang L, Sad S, Harper ME, Lee SH. The TNFα/TNFR2 axis mediates natural killer cell proliferation by promoting aerobic glycolysis. Cell Mol Immunol 2023; 20:1140-1155. [PMID: 37553427 PMCID: PMC10541863 DOI: 10.1038/s41423-023-01071-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2022] [Revised: 06/29/2023] [Accepted: 07/20/2023] [Indexed: 08/10/2023] Open
Abstract
Natural killer (NK) cells are predominant innate lymphocytes that initiate the early immune response during infection. NK cells undergo a metabolic switch to fuel augmented proliferation and activation following infection. Tumor necrosis factor-alpha (TNFα) is a well-known inflammatory cytokine that enhances NK cell function; however, the mechanism underlying NK cell proliferation in response to TNFα is not well established. Here, we demonstrated that upon infection/inflammation, NK cells upregulate the expression of TNF receptor 2 (TNFR2), which is associated with increased proliferation, metabolic activity, and effector function. Notably, IL-18 can induce TNFR2 expression in NK cells, augmenting their sensitivity toward TNFα. Mechanistically, TNFα-TNFR2 signaling upregulates the expression of CD25 (IL-2Rα) and nutrient transporters in NK cells, leading to a metabolic switch toward aerobic glycolysis. Transcriptomic analysis revealed significantly reduced expression levels of genes involved in cellular metabolism and proliferation in NK cells from TNFR2 KO mice. Accordingly, our data affirmed that genetic ablation of TNFR2 curtails CD25 upregulation and TNFα-induced glycolysis, leading to impaired NK cell proliferation and antiviral function during MCMV infection in vivo. Collectively, our results delineate the crucial role of the TNFα-TNFR2 axis in NK cell proliferation, glycolysis, and effector function.
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Affiliation(s)
- Abrar Ul Haq Khan
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Alaa Kassim Ali
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Bryan Marr
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Donghyeon Jo
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Simin Ahmadvand
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Claire Fong-McMaster
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Saeedah Musaed Almutairi
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Botany and Microbiology Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Lisheng Wang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Subash Sad
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Mary-Ellen Harper
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Seung-Hwan Lee
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada.
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada.
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8
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Nunes S, Tibúrcio R, Bonyek-Silva I, Oliveira PR, Khouri R, Boaventura V, Barral A, Brodskyn C, Tavares NM. Transcriptome Analysis Identifies the Crosstalk between Dendritic and Natural Killer Cells in Human Cutaneous Leishmaniasis. Microorganisms 2023; 11:1937. [PMID: 37630497 PMCID: PMC10459107 DOI: 10.3390/microorganisms11081937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 07/17/2023] [Accepted: 07/24/2023] [Indexed: 08/27/2023] Open
Abstract
Skin ulcers of cutaneous leishmaniasis (CL) are characterized by a localized inflammatory response mediated by innate and adaptive immune cells, including dendritic cells (DC) and natural killer (NK) cells. Bidirectional interactions between DCs and NK cells contribute to tailor leishmaniasis outcome. Despite advances in the Leishmania biology field in recent decades, the mechanisms involved in DC/NK-mediated control of Leishmania sp. pathogenesis as well as the cellular and molecular players involved in such interaction remain unclear. The present study sought to investigate canonical pathways associated with CL arising from Leishmania braziliensis infection. Initially, two publicly available microarray datasets of skin biopsies from active CL lesions were analyzed, and five pathways were identified using differentially expressed genes. The "Crosstalk between DCs and NK cells" pathway was notable due to a high number of modulated genes. The molecules significantly involved in this pathway were identified, and our findings were validated in newly obtained CL biopsies. We found increased expression of TLR4, TNFRSF1B, IL-15, IL-6, CD40, CCR7, TNF and IFNG, confirming the analysis of publicly available datasets. These findings reveal the "crosstalk between DCs and NK cells" as a potential pathway to be further explored in the pathogenesis of CL, especially the expression of CCR7, which is correlated with lesion development.
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Affiliation(s)
- Sara Nunes
- Laboratory of Parasite-Host Interaction and Epidemiology (LaIPHE), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 40296-710, Bahia, Brazil; (S.N.); (R.T.); (C.B.)
| | - Rafael Tibúrcio
- Laboratory of Parasite-Host Interaction and Epidemiology (LaIPHE), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 40296-710, Bahia, Brazil; (S.N.); (R.T.); (C.B.)
| | - Icaro Bonyek-Silva
- Baiano Federal Institute (IFBaiano), Xique-Xique 47400-000, Bahia, Brazil;
| | - Pablo Rafael Oliveira
- Biology Institute (IBIO), Federal University of Bahia (UFBA), Salvador 40170-115, Bahia, Brazil; (P.R.O.); (R.K.); (V.B.); (A.B.)
| | - Ricardo Khouri
- Biology Institute (IBIO), Federal University of Bahia (UFBA), Salvador 40170-115, Bahia, Brazil; (P.R.O.); (R.K.); (V.B.); (A.B.)
- Laboratory of Infectious Diseases Transmitted by Vectors (LEITV), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 40296-710, Bahia, Brazil
| | - Viviane Boaventura
- Biology Institute (IBIO), Federal University of Bahia (UFBA), Salvador 40170-115, Bahia, Brazil; (P.R.O.); (R.K.); (V.B.); (A.B.)
- Laboratory of Infectious Diseases Transmitted by Vectors (LEITV), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 40296-710, Bahia, Brazil
| | - Aldina Barral
- Biology Institute (IBIO), Federal University of Bahia (UFBA), Salvador 40170-115, Bahia, Brazil; (P.R.O.); (R.K.); (V.B.); (A.B.)
- Laboratory of Infectious Diseases Transmitted by Vectors (LEITV), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 40296-710, Bahia, Brazil
| | - Cláudia Brodskyn
- Laboratory of Parasite-Host Interaction and Epidemiology (LaIPHE), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 40296-710, Bahia, Brazil; (S.N.); (R.T.); (C.B.)
- Biology Institute (IBIO), Federal University of Bahia (UFBA), Salvador 40170-115, Bahia, Brazil; (P.R.O.); (R.K.); (V.B.); (A.B.)
| | - Natalia Machado Tavares
- Laboratory of Parasite-Host Interaction and Epidemiology (LaIPHE), Gonçalo Moniz Institute, Oswaldo Cruz Foundation (FIOCRUZ), Salvador 40296-710, Bahia, Brazil; (S.N.); (R.T.); (C.B.)
- Biology Institute (IBIO), Federal University of Bahia (UFBA), Salvador 40170-115, Bahia, Brazil; (P.R.O.); (R.K.); (V.B.); (A.B.)
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9
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Godsell J, Chan S, Slade C, Bryant V, Douglass JA, Sasadeusz J, Yong MK. Cytomegalovirus in primary immunodeficiency. Curr Opin Infect Dis 2021; 34:663-671. [PMID: 34608876 DOI: 10.1097/qco.0000000000000797] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
PURPOSE OF REVIEW Cytomegalovirus (CMV) infection and disease are well described in the setting of secondary immunodeficiency. Less is known about CMV in the context of primary immunodeficiencies (PIDs), where inborn errors in one or more arms of the immune system result in variable degrees of CMV susceptibility. RECENT FINDINGS PID presents unique challenges in the diagnosis and management of CMV disease. The clinical presentation of CMV in PID is often severe, accelerated by underlying immune dysregulation and iatrogenic immunosuppression. Here we describe the clinical significance of CMV infection in PID, the key components of immune defence against CMV and how these are affected in specific PIDs. CMV disease is under-recognized as a complication of common variable immunodeficiency (CVID). High rates of CMV end-organ disease, mortality, development of CMV resistance and prolonged antiviral use have been observed in individuals with CVID. SUMMARY We recommend that clinicians tailor their approach to the individual based on their underlying immune deficit and maintain a high index of suspicion and low threshold for treatment. More research is required to improve stratification of CMV risk in PID, develop new diagnostic tools and manage end-organ disease in this cohort.
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Affiliation(s)
- Jack Godsell
- Department of Clinical Immunology & Allergy, Royal Melbourne Hospital
| | - Samantha Chan
- Department of Clinical Immunology & Allergy, Royal Melbourne Hospital
- Immunology Division, Walter & Eliza Hall Institute of Medical Research
- Department of Medicine, University of Melbourne
| | - Charlotte Slade
- Department of Clinical Immunology & Allergy, Royal Melbourne Hospital
- Immunology Division, Walter & Eliza Hall Institute of Medical Research
| | - Vanessa Bryant
- Department of Clinical Immunology & Allergy, Royal Melbourne Hospital
- Immunology Division, Walter & Eliza Hall Institute of Medical Research
| | - Jo Anne Douglass
- Department of Clinical Immunology & Allergy, Royal Melbourne Hospital
- Department of Medicine, University of Melbourne
| | - Joe Sasadeusz
- Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne
| | - Michelle K Yong
- Victorian Infectious Diseases Service, Royal Melbourne Hospital, Melbourne
- Sir Peter MacCallum Department of Oncology, The University of Melbourne, Parkville
- National Centre for Infections in Cancer, Peter MacCallum Cancer Centre, Melbourne, Victoria, Australia
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10
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Flommersfeld S, Böttcher JP, Ersching J, Flossdorf M, Meiser P, Pachmayr LO, Leube J, Hensel I, Jarosch S, Zhang Q, Chaudhry MZ, Andrae I, Schiemann M, Busch DH, Cicin-Sain L, Sun JC, Gasteiger G, Victora GD, Höfer T, Buchholz VR, Grassmann S. Fate mapping of single NK cells identifies a type 1 innate lymphoid-like lineage that bridges innate and adaptive recognition of viral infection. Immunity 2021; 54:2288-2304.e7. [PMID: 34437840 PMCID: PMC8528403 DOI: 10.1016/j.immuni.2021.08.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Revised: 05/21/2021] [Accepted: 08/03/2021] [Indexed: 01/20/2023]
Abstract
Upon viral infection, natural killer (NK) cells expressing certain germline-encoded receptors are selected, expanded, and maintained in an adaptive-like manner. Currently, these are thought to differentiate along a common pathway. However, by fate mapping of single NK cells upon murine cytomegalovirus (MCMV) infection, we identified two distinct NK cell lineages that contributed to adaptive-like responses. One was equivalent to conventional NK (cNK) cells while the other was transcriptionally similar to type 1 innate lymphoid cells (ILC1s). ILC1-like NK cells showed splenic residency and strong cytokine production but also recognized and killed MCMV-infected cells, guided by activating receptor Ly49H. Moreover, they induced clustering of conventional type 1 dendritic cells and facilitated antigen-specific T cell priming early during MCMV infection, which depended on Ly49H and the NK cell-intrinsic expression of transcription factor Batf3. Thereby, ILC1-like NK cells bridge innate and adaptive viral recognition and unite critical features of cNK cells and ILC1s. Adaptive-like NK cell responses to MCMV encompass conventional and ILC1-like lineages ILC1-like NK cells show enhanced cytokine production and splenic residency ILC1-like NK cells show EOMES expression, target-specific cytotoxicity, and clonal expansion ILC1-like NK cells drive cDC1 clustering and CD8+ T cell priming dependent on Ly49H and Batf3
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Affiliation(s)
- Sophie Flommersfeld
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Jan P Böttcher
- Institute of Molecular Immunology and Experimental Oncology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Jonatan Ersching
- Laboratory of Lymphocyte Dynamics, The Rockefeller University, New York, NY 10065, USA
| | - Michael Flossdorf
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Philippa Meiser
- Institute of Molecular Immunology and Experimental Oncology, Klinikum Rechts der Isar, School of Medicine, Technical University of Munich (TUM), Munich, Germany
| | - Ludwig O Pachmayr
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Justin Leube
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Inge Hensel
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Sebastian Jarosch
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Qin Zhang
- Division of Theoretical Systems Biology, German Cancer Research Center (DKFZ), Heidelberg, Germany; BioQuant Center, University of Heidelberg, Heidelberg, Germany
| | | | - Immanuel Andrae
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Matthias Schiemann
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany
| | - Dirk H Busch
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany; German Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany
| | - Luka Cicin-Sain
- Helmholtz Centre for Infection Research, Braunschweig, Germany
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA
| | - Georg Gasteiger
- Würzburg Institute of Systems Immunology, Würzburg, Germany; Max Planck Research Group at the Julius-Maximilians-Universität Würzburg, Würzburg, Germany
| | - Gabriel D Victora
- Laboratory of Lymphocyte Dynamics, The Rockefeller University, New York, NY 10065, USA
| | - Thomas Höfer
- Division of Theoretical Systems Biology, German Cancer Research Center (DKFZ), Heidelberg, Germany; BioQuant Center, University of Heidelberg, Heidelberg, Germany
| | - Veit R Buchholz
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany; German Center for Infection Research (DZIF), Partner Site Munich, Munich, Germany.
| | - Simon Grassmann
- Institute for Medical Microbiology, Immunology and Hygiene, Technical University of Munich (TUM), Munich, Germany; Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA.
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11
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De Pasquale C, Campana S, Barberi C, Sidoti Migliore G, Oliveri D, Lanza M, Musolino C, Raimondo G, Ferrone S, Pollicino T, Ferlazzo G. Human Hepatitis B Virus Negatively Impacts the Protective Immune Crosstalk Between Natural Killer and Dendritic Cells. Hepatology 2021; 74:550-565. [PMID: 33482027 PMCID: PMC8295401 DOI: 10.1002/hep.31725] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/17/2020] [Revised: 12/16/2020] [Accepted: 01/05/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIMS Natural killer (NK) cells play a crucial role in the clearance of human viruses but their activity is significantly impaired in patients infected with chronic hepatitis B (CHB). Cooperation with dendritic cells (DCs) is pivotal for obtaining optimal NK cell antiviral function; thus, we investigated whether HBV might impact the ability of DCs to sustain NK cell functions. APPROACH AND RESULTS Human DCs were poor stimulators of interferon-gamma (IFN-γ) production by NK cells when exposed to HBV, while maintaining the capability to trigger NK cell cytotoxicity. HBV prevented DC maturation but did not affect their expression of human leukocyte antigen class I, thus allowing DCs to evade NK cell lysis. Tolerogenic features of DCs exposed to HBV were further supported by their increased expression of IL-10 and the immunosuppressive enzyme indoleamine 2,3-dioxygenase, which contributed to the impairment of DC-mediated NK cell IFN-γ production and proliferation, respectively. HBV could also inhibit the expression of inducible immunoproteasome (iP) subunits on DCs. In fact, NK cells could induce iP subunit expression on DCs, but they failed in the presence of HBV. Remarkably, circulating blood DC antigen1 (BDCA1)+ DCs isolated from patients with CHB were functionally compromised, hence altering, in turn, NK cell responses. CONCLUSIONS The abnormal NK-DC interplay caused by HBV may significantly impair the efficacy of antiviral immune response in patients with CHB.
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Affiliation(s)
- Claudia De Pasquale
- Laboratory of Immunology and BiotherapyUniversity of MessinaMessinaItaly.,Department of Human PathologyUniversity of MessinaMessinaItaly
| | - Stefania Campana
- Laboratory of Immunology and BiotherapyUniversity of MessinaMessinaItaly.,Department of Human PathologyUniversity of MessinaMessinaItaly
| | - Chiara Barberi
- Department of Experimental Medicine (DIMES)University of GenoaGenoaItaly
| | | | - Daniela Oliveri
- Cell Factory Center and Division of Clinical PathologyUniversity Hospital G. MartinoMessinaItaly
| | - Marika Lanza
- Department of Clinical and Experimental MedicineUniversity of MessinaMessinaItaly
| | - Cristina Musolino
- Department of Clinical and Experimental MedicineUniversity of MessinaMessinaItaly.,Division of Clinical and Molecular HepatologyUniversity Hospital G. MartinoMessinaItaly
| | - Giovanni Raimondo
- Department of Clinical and Experimental MedicineUniversity of MessinaMessinaItaly.,Division of Clinical and Molecular HepatologyUniversity Hospital G. MartinoMessinaItaly
| | - Soldano Ferrone
- Department of SurgeryMassachusetts General HospitalHarvard Medical SchoolBostonMA
| | - Teresa Pollicino
- Department of Human PathologyUniversity of MessinaMessinaItaly.,Division of Clinical and Molecular HepatologyUniversity Hospital G. MartinoMessinaItaly
| | - Guido Ferlazzo
- Laboratory of Immunology and BiotherapyUniversity of MessinaMessinaItaly.,Department of Human PathologyUniversity of MessinaMessinaItaly.,Cell Factory Center and Division of Clinical PathologyUniversity Hospital G. MartinoMessinaItaly
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12
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Khan AUH, Almutairi SM, Ali AK, Salcedo R, Stewart CA, Wang L, Lee SH. Expression of Nutrient Transporters on NK Cells During Murine Cytomegalovirus Infection Is MyD88-Dependent. Front Immunol 2021; 12:654225. [PMID: 34093543 PMCID: PMC8177011 DOI: 10.3389/fimmu.2021.654225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 04/06/2021] [Indexed: 12/03/2022] Open
Abstract
Natural killer (NK) cells are the predominant innate lymphocytes that provide early defense against infections. In the inflammatory milieu, NK cells modify their metabolism to support high energy demands required for their proliferation, activation, and functional plasticity. This metabolic reprogramming is usually accompanied by the upregulation of nutrient transporter expression on the cell surface, leading to increased nutrient uptake required for intense proliferation. The interleukin-1 family members of inflammatory cytokines are critical in activating NK cells during infection; however, their underlying mechanism in NK cell metabolism is not fully elucidated. Previously, we have shown that IL-18 upregulates the expression of solute carrier transmembrane proteins and thereby induces a robust metabolic boost in NK cells. Unexpectedly, we found that IL-18 signaling is dispensable during viral infection in vivo, while the upregulation of nutrient transporters is primarily MyD88-dependent. NK cells from Myd88-/- mice displayed significantly reduced surface expression of nutrient receptors and mTOR activity during MCMV infection. We also identified that IL-33, another cytokine employing MyD88 signaling, induces the expression of nutrient transporters but requires a pre-exposure to IL-12. Moreover, signaling through the NK cell activating receptor, Ly49H, can also promote the expression of nutrient transporters. Collectively, our findings revealed multiple pathways that can induce the expression of nutrient transporters on NK cells while highlighting the imperative role of MyD88 in NK cell metabolism during infection.
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Affiliation(s)
- Abrar Ul Haq Khan
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Saeedah Musaed Almutairi
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- Botany and Microbiology Department, College of Sciences, King Saud University, Riyadh, Saudi Arabia
| | - Alaa Kassim Ali
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Rosalba Salcedo
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institute of Health, Bethesda, MD, United States
| | - C. Andrew Stewart
- Cancer and Inflammation Program, Center for Cancer Research, National Cancer Institute, National Institute of Health, Bethesda, MD, United States
| | - Lisheng Wang
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
| | - Seung-Hwan Lee
- Department of Biochemistry, Microbiology, and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
- The University of Ottawa Centre for Infection, Immunity, and Inflammation, Ottawa, ON, Canada
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13
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Abstract
Natural killer (NK) cells are innate lymphocytes that provide critical host defense against pathogens and cancer. Originally heralded for their early and rapid effector activity, NK cells have been recognized over the last decade for their ability to undergo adaptive immune processes, including antigen-driven clonal expansion and generation of long-lived memory. This review presents an overview of how NK cells lithely partake in both innate and adaptive responses and how this versatility is manifest in human NK cell-mediated immunity.
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Affiliation(s)
- Adriana M Mujal
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
| | - Rebecca B Delconte
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA;
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY 10065, USA; .,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY 10065, USA
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14
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Sheppard S, Sun JC. Virus-specific NK cell memory. J Exp Med 2021; 218:211913. [PMID: 33755720 PMCID: PMC7992500 DOI: 10.1084/jem.20201731] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Revised: 11/25/2020] [Accepted: 12/17/2020] [Indexed: 12/13/2022] Open
Abstract
NK cells express a limited number of germline-encoded receptors that identify infected or transformed cells, eliciting cytotoxicity, effector cytokine production, and in some circumstances clonal proliferation and memory. To maximize the functional diversity of NK cells, the array and expression level of surface receptors vary between individual NK cell “clones” in mice and humans. Cytomegalovirus infection in both species can expand a population of NK cells expressing receptors critical to the clearance of infected cells and generate a long-lived memory pool capable of targeting future infection with greater efficacy. Here, we discuss the pathways and factors that regulate the generation and maintenance of effector and memory NK cells and propose how this understanding may be harnessed therapeutically.
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Affiliation(s)
- Sam Sheppard
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY
| | - Joseph C Sun
- Immunology Program, Memorial Sloan-Kettering Cancer Center, New York, NY.,Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY
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15
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Ferlazzo G. In vivo evidence for dendritic cell lysis by NK cells: Hints on improving cancer vaccines by targeting NK cell activation. Oncoimmunology 2021; 1:1635-1636. [PMID: 23264919 PMCID: PMC3525628 DOI: 10.4161/onci.21682] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
By using an experimental model of anticancer vaccination, we have recently lent support to the assumption, so far only sustained by in vitro data, that natural killer cells can restrain less immunogenic, allegedly tolerogenic, dendritic cells (DCs). This in vivo selection of immunogenic DCs appears to depend on perforin and to be associated with a more protective tumor-specific T lymphocyte response.
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Affiliation(s)
- Guido Ferlazzo
- Laboratory of Immunology and Biotherapy; Department of Human Pathology; University of Messina; Messina, Italy
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16
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Cabeza-Cabrerizo M, Cardoso A, Minutti CM, Pereira da Costa M, Reis E Sousa C. Dendritic Cells Revisited. Annu Rev Immunol 2021; 39:131-166. [PMID: 33481643 DOI: 10.1146/annurev-immunol-061020-053707] [Citation(s) in RCA: 331] [Impact Index Per Article: 110.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Dendritic cells (DCs) possess the ability to integrate information about their environment and communicate it to other leukocytes, shaping adaptive and innate immunity. Over the years, a variety of cell types have been called DCs on the basis of phenotypic and functional attributes. Here, we refocus attention on conventional DCs (cDCs), a discrete cell lineage by ontogenetic and gene expression criteria that best corresponds to the cells originally described in the 1970s. We summarize current knowledge of mouse and human cDC subsets and describe their hematopoietic development and their phenotypic and functional attributes. We hope that our effort to review the basic features of cDC biology and distinguish cDCs from related cell types brings to the fore the remarkable properties of this cell type while shedding some light on the seemingly inordinate complexity of the DC field.
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Affiliation(s)
- Mar Cabeza-Cabrerizo
- Immunobiology Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom;
| | - Ana Cardoso
- Immunobiology Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom;
| | - Carlos M Minutti
- Immunobiology Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom;
| | | | - Caetano Reis E Sousa
- Immunobiology Laboratory, The Francis Crick Institute, London NW1 1AT, United Kingdom;
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17
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King CA, Wegman AD, Endy TP. Mobilization and Activation of the Innate Immune Response to Dengue Virus. Front Cell Infect Microbiol 2020; 10:574417. [PMID: 33224897 PMCID: PMC7670994 DOI: 10.3389/fcimb.2020.574417] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Accepted: 09/28/2020] [Indexed: 12/17/2022] Open
Abstract
Dengue virus is an important human pathogen, infecting an estimated 400 million individuals per year and causing symptomatic disease in a subset of approximately 100 million. Much of the effort to date describing the host response to dengue has focused on the adaptive immune response, in part because of the well-established roles of antibody-dependent enhancement and T cell original sin as drivers of severe dengue upon heterotypic secondary infection. However, the innate immune system is a crucial factor in the host response to dengue, as it both governs the fate and vigor of the adaptive immune response, and mediates the acute inflammatory response in tissues. In this review, we discuss the innate inflammatory response to dengue infection, focusing on the role of evolutionarily conserved innate immune cells, their effector functions, and clinical course.
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Affiliation(s)
- Christine A. King
- Department of Microbiology and Immunology, State University of New York (SUNY) Upstate Medical University, Syracuse, NY, United States
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18
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Lee JK. Sesamolin promotes cytolysis and migration activity of natural killer cells via dendritic cells. Arch Pharm Res 2020; 43:462-474. [PMID: 32279231 DOI: 10.1007/s12272-020-01229-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Accepted: 03/19/2020] [Indexed: 11/29/2022]
Abstract
The defense mechanism of the immune system is based on the interaction of many kinds of leukocytes. Among them, dendritic cells (DCs) control most immune responses. In our previous study, sesamolin was shown to create an optimal environment for natural killer (NK) cells to kill cancer cells. Here we attempted to demonstrate how sesamolin influences DCs to promote the killing and migration activity of NK cells. We co-cultured DCs and NK cells and analyzed the communication between them. NK cells co-cultured with 5 µg/ml sesamolin-treated mature dendritic cells (mDCs) had better cytolytic activity than did NK cells or mDCs co-cultured NK cells. Moreover, the migration of NK cells toward mDCs was enhanced compared to immature dendritic cells (iDCs). The migration of NK cells stimulated by mDCs was stronger after sesamolin activation of the mDCs. Altogether, this study demonstrated that sesamolin activated NK cells by modulating the differentiation and activation of DCs.
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Affiliation(s)
- Jae Kwon Lee
- Department of Biology Education, College of Education, Chungbuk National University, Cheongju, Chungbuk, 361-763, Republic of Korea.
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19
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Yunis J, Redwood AJ, Belz GT, Stevenson PG. Membrane association of a model CD4 + T-cell vaccine antigen confers enhanced yet incomplete protection against murid herpesvirus-4 infection. Immunol Cell Biol 2020; 98:332-343. [PMID: 31997396 DOI: 10.1111/imcb.12319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Revised: 01/20/2020] [Accepted: 01/27/2020] [Indexed: 12/14/2022]
Abstract
Vaccination against γ-herpesviruses has proved difficult. CD4+ T cells are essential to contain infection, but how best to prime them and whether this can reduce viral loads remain unclear. To address these questions, we used ovalbumin (OVA) as a model antigen, delivering it with murine cytomegalovirus (MCMV) to protect mice against OVA-expressing murine herpesvirus-4 (MuHV-4). Membrane-associated OVA (mOVA) was more effective than soluble OVA, both to prime CD4+ T cells and as an effector target. It was also a better target than an OVA epitope limited to infected cells, suggesting that protective CD4+ T cells recognize infected cell debris rather than infected cells themselves. While MCMV-mOVA protected acutely against MuHV-4-mOVA, long-term protection was incomplete, even when OVA-specific CD8+ T cells and B cells were also primed. Thus, even optimized single-target vaccines may poorly reduce long-term γ-herpesvirus infections.
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Affiliation(s)
- Joseph Yunis
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, QLD, Australia
| | - Alec J Redwood
- Faculty of Health and Medical Sciences, University of Western Australia, Perth, WA, Australia
| | - Gabrielle T Belz
- Molecular Immunology, Walter and Eliza Hall Institute, Melbourne, VIC, Australia
| | - Philip G Stevenson
- School of Chemistry and Molecular Biosciences, University of Queensland, St Lucia, QLD, Australia
- Royal Children's Hospital, Brisbane, QLD, Australia
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20
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Natural killer cells as participants in pathogenesis of rat experimental autoimmune encephalomyelitis (EAE): lessons from research on rats with distinct age and strain. Cent Eur J Immunol 2020; 44:337-356. [PMID: 32140045 PMCID: PMC7050050 DOI: 10.5114/ceji.2019.92777] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Accepted: 11/12/2018] [Indexed: 01/08/2023] Open
Abstract
Natural killer (NK) cells, influencing dendritic cell (DC)-mediated CD4+ lymphocyte priming in draining lymph nodes (dLNs) and controlling spinal cord (SC) infiltration with encephalitogenic CD4+T lymphocytes, modulate EAE (multiple sclerosis model). This study examined their putative contribution to age-related differences in EAE development in Dark Agouti (DA) (exhibiting age-related decrease in EAE susceptibility) and Albino Oxford (AO) (becoming susceptible to EAE with aging) rats. Aging increased NK cell number in dLNs from rats of both strains. In AO rats, but not in DA ones, it also increased the numbers of IFN-γ-producing NK cells (important for DC activation) and activated/matured DCs, thereby increasing activated/matured DC/conventional Foxp3-CD4+ cell ratio and activated CD25+Foxp3-CD4+ cell number. Aging in DA rats diminished activated/matured DC/conventional Foxp3-CD4+ cell ratio and activated Foxp3-CD4+ cell number. However, MBP-stimulated CD4+ cell proliferation did not differ in dLN cell cultures from young and aged AO rats (as more favorable activated/matured DC/Foxp3-CD4+ cell ratio was abrogated by lower intrinsic CD4+ cell proliferative capacity and a greater regulatory CD25+Foxp3+CD4+ lymphocyte frequency), but was lower in those from aged compared with young DA rats. At SC level, aging shifted Foxp3-CD4+/cytotoxic CX3CR1+ NK cell ratio towards the former in AO rats, so it was less favorable in aged AO rats exhibiting prolonged neurological deficit compared with their DA counterparts. The study showed strain and age differences in number of IFN-γ-producing NK cells in EAE rat dLNs, and suggested that their pathogenetic relevance depends on frequency and/or activity of other cells involved in CD4+ T cell (auto)immune response.
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21
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Gupta U, Hira SK, Singh R, Paladhi A, Srivastava P, Pratim Manna P. Essential role of TNF-α in gamma c cytokine aided crosstalk between dendritic cells and natural killer cells in experimental murine lymphoma. Int Immunopharmacol 2019; 78:106031. [PMID: 31821938 DOI: 10.1016/j.intimp.2019.106031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2019] [Revised: 10/30/2019] [Accepted: 11/04/2019] [Indexed: 12/26/2022]
Abstract
Cooperative and cognitive interaction between the dendritic cells and natural killer cells was investigated for demonstrating the anti-tumor activity against an aggressive murine lymphoma, treated with doxorubicin. Crosstalk between the dendritic cells and the natural killer cells significantly reduced the proliferation of Dalton's lymphoma cells in a dose dependent manner. Treatment of Dalton's lymphoma cells with doxorubicin in vitro enhances the effects of crosstalk against the target cells. This crosstalk between the cells was regulated via stimulation with recombinant interleukin-15, and release of TNF-α which is critically important for the tumoricidal effects. Dendritic cells and the natural killer cells crosstalk activate both the cells and upregulate the expression of CD40, CD69 and CD86 on the dendritic cells. These findings provided new insight regarding these interactions and define a mechanism by which cellular immune response promotes tumoricidal activity against lymphoma in therapeutic setting.
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Affiliation(s)
- Uttam Gupta
- Immunobiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Sumit Kumar Hira
- Cellular Immunology Laboratory, Department of Zoology, The University of Burdwan, Purba, Bardhhaman 713104, India
| | - Ranjeet Singh
- Immunobiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India
| | - Ankush Paladhi
- Cellular Immunology Laboratory, Department of Zoology, The University of Burdwan, Purba, Bardhhaman 713104, India
| | - Prateek Srivastava
- Immunobiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India; Cellular Immunology Laboratory, Department of Zoology, The University of Burdwan, Purba, Bardhhaman 713104, India
| | - Partha Pratim Manna
- Immunobiology Laboratory, Department of Zoology, Institute of Science, Banaras Hindu University, Varanasi 221005, India.
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22
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Galeas-Pena M, McLaughlin N, Pociask D. The role of the innate immune system on pulmonary infections. Biol Chem 2019; 400:443-456. [PMID: 29604208 DOI: 10.1515/hsz-2018-0304] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Accepted: 09/19/2018] [Indexed: 12/15/2022]
Abstract
Inhalation is required for respiration and life in all vertebrates. This process is not without risk, as it potentially exposes the host to environmental pathogens with every breath. This makes the upper respiratory tract one of the most common routes of infection and one of the leading causes of morbidity and mortality in the world. To combat this, the lung relies on the innate immune defenses. In contrast to the adaptive immune system, the innate immune system does not require sensitization, previous exposure or priming to attack foreign particles. In the lung, the innate immune response starts with the epithelial barrier and mucus production and is reinforced by phagocytic cells and T cells. These cells are vital for the production of cytokines, chemokines and anti-microbial peptides that are critical for clearance of infectious agents. In this review, we discuss all aspects of the innate immune response, with a special emphasis on ways to target aspects of the immune response to combat antibiotic resistant bacteria.
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Affiliation(s)
- Michelle Galeas-Pena
- Department of Pulmonary Critical Care and Environmental Medicine, Tulane University School of Medicine, 333 S. Liberty St., New Orleans, LA 70112, USA
| | - Nathaniel McLaughlin
- Department of Pulmonary Critical Care and Environmental Medicine, Tulane University School of Medicine, 333 S. Liberty St., New Orleans, LA 70112, USA
| | - Derek Pociask
- Department of Pulmonary Critical Care and Environmental Medicine, Tulane University School of Medicine, 333 S. Liberty St., New Orleans, LA 70112, USA
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23
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Berry R, Watson GM, Jonjic S, Degli-Esposti MA, Rossjohn J. Modulation of innate and adaptive immunity by cytomegaloviruses. Nat Rev Immunol 2019; 20:113-127. [PMID: 31666730 DOI: 10.1038/s41577-019-0225-5] [Citation(s) in RCA: 75] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/16/2019] [Indexed: 02/07/2023]
Abstract
The coordinated activities of innate and adaptive immunity are critical for effective protection against viruses. To counter this, some viruses have evolved sophisticated strategies to circumvent immune cell recognition. In particular, cytomegaloviruses encode large arsenals of molecules that seek to subvert T cell and natural killer cell function via a remarkable array of mechanisms. Consequently, these 'immunoevasins' play a fundamental role in shaping the nature of the immune system by driving the evolution of new immune receptors and recognition mechanisms. Here, we review the diverse strategies adopted by cytomegaloviruses to target immune pathways and outline the host's response.
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Affiliation(s)
- Richard Berry
- Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia. .,Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia. .,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia.
| | - Gabrielle M Watson
- Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.,Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia
| | - Stipan Jonjic
- Department of Histology and Embryology, Faculty of Medicine, University of Rijeka, Rijeka, Croatia
| | - Mariapia A Degli-Esposti
- Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.,Department of Microbiology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.,Centre for Experimental Immunology, Lions Eye Institute, Perth, Western Australia, Australia
| | - Jamie Rossjohn
- Infection and Immunity Program, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.,Department of Biochemistry and Molecular Biology, Biomedicine Discovery Institute, Monash University, Clayton, Victoria, Australia.,Australian Research Council Centre of Excellence in Advanced Molecular Imaging, Monash University, Clayton, Victoria, Australia.,Institute of Infection and Immunity, Cardiff University School of Medicine, Cardiff, UK
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24
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Zou MZ, Liu WL, Gao F, Bai XF, Chen HS, Zeng X, Zhang XZ. Artificial Natural Killer Cells for Specific Tumor Inhibition and Renegade Macrophage Re-Education. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1904495. [PMID: 31497903 DOI: 10.1002/adma.201904495] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2019] [Revised: 08/17/2019] [Indexed: 05/20/2023]
Abstract
Natural killer (NK) cells can not only recognize and eliminate abnormal cells but also recruit and re-educate immune cells to protect the host. However, the functions of NK cells are often limited in the immunosuppressive tumor microenvironment (TME). Here, artificial NK cells (designated as aNK) with minor limitations of TME for specific tumor killing and renegade macrophage re-education are created. The red blood cell membrane (RBCM) cloaks perfluorohexane (PFC) and glucose oxidase (GOX) to construct the aNK. The aNK can directly kill tumor cells by exhausting glucose and generating hydrogen peroxide (H2 O2 ). The generated H2 O2 is also similar to cytokines and chemokines for recruiting immune cells and re-educating survived macrophages to attack tumor cells. In addition, the oxygen-carried PFC can strengthen the catalytic reaction of GOX and normalize the hypoxic TME. In vitro and in vivo experiments display that aNK with slight TME limitations exhibit efficient tumor inhibition and immune activation. The aNK will provide a new sight to treat tumor as the supplement of aggressive NK cells.
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Affiliation(s)
- Mei-Zhen Zou
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
| | - Wen-Long Liu
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Fan Gao
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Xue-Feng Bai
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Han-Shi Chen
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Xuan Zeng
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
| | - Xian-Zheng Zhang
- The Institute for Advanced Studies, Wuhan University, Wuhan, 430072, P. R. China
- Key Laboratory of Biomedical Polymers of Ministry of Education & Department of Chemistry, Wuhan University, Wuhan, 430072, P. R. China
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25
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Feng Y, Daley-Bauer LP, Roback L, Potempa M, Lanier LL, Mocarski ES. Caspase-8 restricts natural killer cell accumulation during MCMV Infection. Med Microbiol Immunol 2019; 208:543-554. [PMID: 31115653 DOI: 10.1007/s00430-019-00617-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Accepted: 04/17/2019] [Indexed: 01/28/2023]
Abstract
Natural killer (NK) cells provide important host defense against herpesvirus infections and influence subsequent T cell control of replication and maintenance of latency. NK cells exhibit phases of expansion, contraction and memory formation in response to the natural mouse pathogen murine cytomegalovirus (MCMV). Innate and adaptive immune responses are tightly regulated in mammals to avoid excess tissue damage while preventing acute and chronic viral disease and assuring resistance to reinfection. Caspase (CASP)8 is an autoactivating aspartate-specific cysteine protease that initiates extrinsic apoptosis and prevents receptor interacting protein (RIP) kinase (RIPK)1-RIPK3-driven necroptosis. CASP8 also promotes death-independent signal transduction. All of these activities make contributions to inflammation. Here, we demonstrate that CASP8 restricts NK cell expansion during MCMV infection but does not influence NK memory. Casp8-/-Ripk3-/- mice mount higher NK response levels than Casp8+/-Ripk3-/- littermate controls or WT C57BL/6 J mice, indicating that RIPK3 deficiency alone does not contribute to NK response patterns. MCMV m157-responsive Ly49H+ NK cells support increased expansion of both Ly49H- NK cells and CD8 T cells in Casp8-/-Ripk3-/- mice. Surprisingly, hyperaccumulation of NK cells depends on the pronecrotic kinase RIPK1. Ripk1-/-Casp8-/-Ripk3-/- mice fail to show the enhanced expansion of lymphocytes observed in Casp8-/-Ripk3-/- mice even though development and homeostasis are preserved in uninfected Ripk1-/-Casp8-/-Ripk3-/- mice. Thus, CASP8 naturally regulates the magnitude of NK cell responses in response to infection where strong activation signals depend on another key regulator of death signaling, RIPK1. In addition, the strong NK cell response promotes survival of effector CD8 T cells during their expansion. Thus, hyperaccumulation of NK cells and crosstalk with T cells becomes amplified in the absence of extrinsic cell death machinery.
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Affiliation(s)
- Yanjun Feng
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1462 Clifton Rd. N.E, Atlanta, GA, 30322, USA
| | - Lisa P Daley-Bauer
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1462 Clifton Rd. N.E, Atlanta, GA, 30322, USA
| | - Linda Roback
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1462 Clifton Rd. N.E, Atlanta, GA, 30322, USA
| | - Marc Potempa
- Department of Microbiology and Immunology and Parker Institute for Cancer Immunotherapy, University of California, San Francisco, CA, 94143, USA
| | - Lewis L Lanier
- Department of Microbiology and Immunology and Parker Institute for Cancer Immunotherapy, University of California, San Francisco, CA, 94143, USA
| | - Edward S Mocarski
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, 1462 Clifton Rd. N.E, Atlanta, GA, 30322, USA.
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Picarda G, Benedict CA. Cytomegalovirus: Shape-Shifting the Immune System. THE JOURNAL OF IMMUNOLOGY 2019; 200:3881-3889. [PMID: 29866770 DOI: 10.4049/jimmunol.1800171] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Accepted: 03/26/2018] [Indexed: 11/19/2022]
Abstract
Systems-based based approaches have begun to shed light on extrinsic factors that contribute to immune system variation. Among these, CMV (HHV-5, a β-herpesvirus) imposes a surprisingly profound impact. Most of the world's population is CMV+, and the virus goes through three distinct infection phases en route to establishing lifelong détente with its host. Immune control of CMV in each phase recruits unique arms of host defense, and in turn the virus employs multiple immune-modulatory strategies that help facilitate the establishment of lifelong persistence. In this review, we explain how CMV shapes immunity and discuss the impact it may have on overall health.
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Affiliation(s)
- Gaëlle Picarda
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037; and
| | - Chris A Benedict
- Division of Immune Regulation, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037; and .,Center for Infectious Disease, La Jolla Institute for Allergy and Immunology, La Jolla, CA 92037
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27
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The recruitment of peripheral blood leukocytes to the brain is delayed in susceptible BALB/c compared to resistant C57BL/6 mice during herpes simplex virus encephalitis. J Neurovirol 2019; 25:372-383. [PMID: 30758810 DOI: 10.1007/s13365-019-00730-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2018] [Revised: 01/11/2019] [Accepted: 01/25/2019] [Indexed: 02/05/2023]
Abstract
The cerebral immune response induced by herpes simplex virus (HSV) encephalitis (HSE) was evaluated in susceptible BALB/c and resistant C57BL/6 mice. BALB/c and C57BL/6 (named C57BL/6-high) mice were respectively infected intranasally with 1 × 103 and 5 × 105 plaque-forming units (PFUs) of HSV-1. C57BL/6 mice (named C57BL/6-low) infected with a low inoculum (1 × 103 PFUs) of HSV-1 were tested in parallel. Mice were monitored for weight loss, sickness signs, and survival for 21 days. The viral load, infectious titers, cytokine/chemokine levels, and peripheral leukocyte infiltration were determined in brain homogenates on days 0 (non-infected), 4, 6, and 8 post-infection (p.i.) by qPCR, plaque assay, ELISA/Luminex™, and flow cytometry, respectively. Our results showed that the mortality of BALB/c mice (67%) was higher compared to those of C57BL/6-low (0%; P ≤ 0.01) and C57BL/6-high (20%; P ≤ 0.05) animals. This higher mortality was associated with increased infectious titers and cytokine/chemokine levels in the brains of BALB/c compared to C57BL/6 mice. Recruitment of inflammatory monocytes, dendritic cells, natural killer, and natural killer T cells to the brain was higher in C57BL/6-high compared to BALB/c animals on day 4 p.i. Infiltration of inflammatory monocytes and T cells in the brain of BALB/c mice was seen on day 6 p.i. Our data suggest that a rapid, sustained, and coordinated recruitment of peripheral leukocytes to the brain of C57BL/6-high mice results in an effective control of viral replication and inflammation whereas the delayed infiltration of immune cells in the brain of BALB/c mice was associated with an exacerbated inflammatory response during HSE.
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28
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Abstract
Dendritic cells (DCs) can be viewed as translators between innate and adaptive immunity. They integrate signals derived from tissue infection or damage and present processed antigen from these sites to naive T cells in secondary lymphoid organs while also providing multiple soluble and surface-bound signals that help to guide T cell differentiation. DC-mediated tailoring of the appropriate T cell programme ensures a proper cascade of immune responses that adequately targets the insult. Recent advances in our understanding of the different types of DC subsets along with the cellular organization and orchestration of DC and lymphocyte positioning in secondary lymphoid organs over time has led to a clearer understanding of how the nature of the T cell response is shaped. This Review discusses how geographical organization and ordered sequences of cellular interactions in lymph nodes and the spleen regulate immunity.
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Affiliation(s)
- S C Eisenbarth
- Department of Laboratory Medicine, Immunobiology, Section of Allergy & Immunology, Yale University School of Medicine, New Haven, CT, USA.
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29
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Almutairi SM, Ali AK, He W, Yang DS, Ghorbani P, Wang L, Fullerton MD, Lee SH. Interleukin-18 up-regulates amino acid transporters and facilitates amino acid-induced mTORC1 activation in natural killer cells. J Biol Chem 2019; 294:4644-4655. [PMID: 30696773 DOI: 10.1074/jbc.ra118.005892] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Revised: 01/16/2019] [Indexed: 12/29/2022] Open
Abstract
Upon inflammation, natural killer (NK) cells undergo metabolic changes to support their high energy demand for effector function and proliferation. The metabolic changes are usually accompanied by an increase in the expression of nutrient transporters, leading to increased nutrient uptake. Among various cytokines inducing NK cell proliferation, the mechanisms underlying the effect of interleukin (IL)-18 in promoting NK cell proliferation are not completely understood. Here, we demonstrate that IL-18 is a potent cytokine that can enhance the expression of the nutrient transporter CD98/LAT1 for amino acids independently of the mTORC1 pathway and thereby induce a dramatic metabolic change associated with increased proliferation of NK cells. Notably, treatment of IL-18-stimulated NK cells with leucine activates the metabolic sensor mTORC1, indicating that the high expression of amino acid transporters induces amino acid-driven mTORC1 activation. Inhibition of the amino acid transporter CD98/LAT1 abrogated the leucine-driven mTORC1 activation and reduced NK cell effector function. Taken together, our study identified a novel role of IL-18 in up-regulating nutrient transporters on NK cells and thereby inducing metabolic changes, including the mTORC1 activation by amino acids.
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Affiliation(s)
- Saeedah Musaed Almutairi
- From the Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada and.,Botany and Microbiology Department, College of Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Alaa Kassim Ali
- From the Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada and
| | - William He
- From the Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada and
| | - Doo-Seok Yang
- From the Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada and
| | - Peyman Ghorbani
- From the Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada and
| | - Lisheng Wang
- From the Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada and
| | - Morgan D Fullerton
- From the Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada and
| | - Seung-Hwan Lee
- From the Department of Biochemistry, Microbiology and Immunology, Faculty of Medicine, University of Ottawa, Ottawa, Ontario K1H 8M5, Canada and
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30
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Lu Y, Liu X, Huang Y, Liao Y, Xi T, Zhang Y, Shu S, Fang F. The Effects of IL10 and NK Cells on the Susceptibility to Mouse Cytomegalovirus in BALB/c Mice despite the Compensation of IFNγ. Intervirology 2018; 61:111-122. [PMID: 30336455 DOI: 10.1159/000493316] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 08/27/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE The aim of this study was to determine which factors lead to the susceptibility to mouse cytomegalovirus (MCMV) in the spleens of BALB/c mice. METHODS BALB/c and C57BL/6 mice were randomly divided into a control group and an infection group and sacrificed on day 0, 1, 3, 7, 14, and 28 postinfection. The cytotoxicity of NK cells was determined by evaluating lactate dehydrogenase contents. Flow cytometry was used to analyze activated NK cells, IFNγ+ NK cells, and total NK cells in the spleen. The pathological changes of spleens in each group were analyzed by HE staining. The expression of IL10, IL18, IFNγ, Thpok, and IFNβ of spleens was determined by quantitative reverse transcriptase PCR. The viral loads of MCMV in spleens and salivary glands were also detected. RESULTS We found that spleen NK cells and IL10 in C57BL/6 mice possessed more powerful immunity to MCMV than BALB/c mice. In BALB/c mice, combined effects of the cytotoxicity of NK cells and IFNγ in spleens still ended up with deficient control of infection. CONCLUSION The functional shortage of NK cells and inappropriate expression of IL10 result in the susceptibility to MCMV in BALB/c mice.
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31
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Walwyn-Brown K, Guldevall K, Saeed M, Pende D, Önfelt B, MacDonald AS, Davis DM. Human NK Cells Lyse Th2-Polarizing Dendritic Cells via NKp30 and DNAM-1. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2018; 201:2028-2041. [PMID: 30120122 PMCID: PMC6139540 DOI: 10.4049/jimmunol.1800475] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Accepted: 07/23/2018] [Indexed: 01/08/2023]
Abstract
Cross-talk between NK cells and dendritic cells (DCs) is important in Th1 immune responses, including antitumor immunity and responses to infections. DCs also play a crucial role in polarizing Th2 immunity, but the impact of NK cell-DC interactions in this context remains unknown. In this study, we stimulated human monocyte-derived DCs in vitro with different pathogen-associated molecules: LPS or polyinosinic-polycytidylic acid, which polarize a Th1 response, or soluble egg Ag from the helminth worm Schistosoma mansoni, a potent Th2-inducing Ag. Th2-polarizing DCs were functionally distinguishable from Th1-polarizing DCs, and both showed distinct morphology and dynamics from immature DCs. We then assessed the outcome of autologous NK cells interacting with these differently stimulated DCs. Confocal microscopy showed polarization of the NK cell microtubule organizing center and accumulation of LFA-1 at contacts between NK cells and immature or Th2-polarizing DCs but not Th1-polarizing DCs, indicative of the assembly of an activating immune synapse. Autologous NK cells lysed immature DCs but not DCs treated with LPS or polyinosinic-polycytidylic acid as reported previously. In this study, we demonstrated that NK cells also degranulated in the presence of Th2-polarizing DCs. Moreover, time-lapse live-cell microscopy showed that DCs that had internalized fluorescently labeled soluble egg Ag were efficiently lysed. Ab blockade of NK cell-activating receptors NKp30 or DNAM-1 abrogated NK cell lysis of Th2-polarizing DCs. Thus, these data indicate a previously unrecognized role of NK cell cytotoxicity and NK cell-activating receptors NKp30 and DNAM-1 in restricting the pool of DCs involved in Th2 immune responses.
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Affiliation(s)
- Katherine Walwyn-Brown
- Manchester Collaborative Centre for Inflammation Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9NT, United Kingdom
| | - Karolin Guldevall
- Department of Applied Physics, Science for Life Laboratory, KTH Royal Institute of Technology, Solna, SE-106 91 Stockholm, Sweden
| | - Mezida Saeed
- Manchester Collaborative Centre for Inflammation Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9NT, United Kingdom
| | - Daniela Pende
- Laboratorio Immunologia, Istituto di Ricovero e Cura a Carattere Scientifico, Ospedale Policlinico San Martino, 16132 Genova, Italy; and
| | - Björn Önfelt
- Department of Applied Physics, Science for Life Laboratory, KTH Royal Institute of Technology, Solna, SE-106 91 Stockholm, Sweden
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institute, 171 77 Stockholm, Sweden
| | - Andrew S MacDonald
- Manchester Collaborative Centre for Inflammation Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9NT, United Kingdom
| | - Daniel M Davis
- Manchester Collaborative Centre for Inflammation Research, Faculty of Biology, Medicine and Health, University of Manchester, Manchester M13 9NT, United Kingdom;
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32
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Feng Y, Livingston-Rosanoff D, Roback L, Sundararajan A, Speck SH, Mocarski ES, Daley-Bauer LP. Remarkably Robust Antiviral Immune Response despite Combined Deficiency in Caspase-8 and RIPK3. THE JOURNAL OF IMMUNOLOGY 2018; 201:2244-2255. [PMID: 30194111 DOI: 10.4049/jimmunol.1800110] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 08/08/2018] [Indexed: 01/06/2023]
Abstract
Caspase-8 (Casp8)-mediated signaling triggers extrinsic apoptosis while suppressing receptor-interacting protein kinase (RIPK) 3-dependent necroptosis. Although Casp8 is dispensable for the development of innate and adaptive immune compartments in mice, the importance of this proapoptotic protease in the orchestration of immune response to pathogens remains to be fully explored. In this study, Casp8-/-Ripk3-/- C57BL/6 mice show robust innate and adaptive immune responses to the natural mouse pathogen, murine CMV. When young, these mice lack lpr-like lymphoid hyperplasia and accumulation of either B220 + CD3+ or B220-CD3+CD4+ and CD8+ T cells with increased numbers of immature myeloid cells that are evident in older mice. Dendritic cell activation and cytokine production drive both NK and T cell responses to control viral infection in these mice, suggesting that Casp8 is dispensable to the generation of antiviral host defense. Curiously, NK and T cell expansion is amplified, with greater numbers observed by 7 d postinfection compared with either Casp8+/-Ripk3-/- or wild type (Casp8+/+Ripk3+/+ ) littermate controls. Casp8 and RIPK3 are natural targets of virus-encoded cell death suppressors that prevent infected cell apoptosis and necroptosis, respectively. It is clear from the current studies that the initiation of innate immunity and the execution of cytotoxic lymphocyte functions are all preserved despite the absence of Casp8 in responding cells. Thus, Casp8 and RIPK3 signaling is completely dispensable to the generation of immunity against this natural herpesvirus infection, although the pathways driven by these initiators serve as a crucial first line for host defense within virus-infected cells.
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Affiliation(s)
- Yanjun Feng
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322
| | - Devon Livingston-Rosanoff
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322
| | - Linda Roback
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322
| | - Aarthi Sundararajan
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322
| | - Samuel H Speck
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322
| | - Edward S Mocarski
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322
| | - Lisa P Daley-Bauer
- Department of Microbiology and Immunology, Emory Vaccine Center, Emory University School of Medicine, Atlanta, GA 30322
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33
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Lau CM, Adams NM, Geary CD, Weizman OE, Rapp M, Pritykin Y, Leslie CS, Sun JC. Epigenetic control of innate and adaptive immune memory. Nat Immunol 2018; 19:963-972. [PMID: 30082830 PMCID: PMC6225771 DOI: 10.1038/s41590-018-0176-1] [Citation(s) in RCA: 185] [Impact Index Per Article: 30.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 06/05/2018] [Indexed: 01/14/2023]
Abstract
Clonal expansion and immunological memory are hallmark features of the mammalian adaptive immune response and essential for prolonged host control of pathogens. Recent work demonstrates that natural killer (NK) cells of the innate immune system also exhibit these adaptive traits during infection. Here we demonstrate that differentiating and 'memory' NK cells possess distinct chromatin accessibility states and that their epigenetic profiles reveal a 'poised' regulatory program at the memory stage. Furthermore, we elucidate how individual STAT transcription factors differentially control epigenetic and transcriptional states early during infection. Finally, concurrent chromatin profiling of the canonical CD8+ T cell response against the same infection demonstrated parallel and distinct epigenetic signatures defining NK cells and CD8+ T cells. Overall, our study reveals the dynamic nature of epigenetic modifications during the generation of innate and adaptive lymphocyte memory.
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Affiliation(s)
- Colleen M Lau
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Nicholas M Adams
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Clair D Geary
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Orr-El Weizman
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Moritz Rapp
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Yuri Pritykin
- Computational and Systems Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Christina S Leslie
- Computational and Systems Biology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA
| | - Joseph C Sun
- Immunology Program, Memorial Sloan Kettering Cancer Center, New York, NY, USA.
- Department of Immunology and Microbial Pathogenesis, Weill Cornell Medical College, New York, NY, USA.
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34
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Molgora M, Supino D, Mavilio D, Santoni A, Moretta L, Mantovani A, Garlanda C. The yin-yang of the interaction between myelomonocytic cells and NK cells. Scand J Immunol 2018; 88:e12705. [PMID: 30048003 DOI: 10.1111/sji.12705] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 07/12/2018] [Accepted: 07/20/2018] [Indexed: 12/14/2022]
Abstract
NK cells are innate lymphoid cells, which play a key role in the immune response to cancer and pathogens and participate in the shaping of adaptive immunity. NK cells engage in a complex bidirectional interaction with myelomonocytic cells. In particular, macrophages, dendritic cells and neutrophils promote differentiation and effector function of NK cells and, on the other hand, myelomonocytic cells express triggers of checkpoint blockade (eg PD-L1) and other immunosuppressive molecules, which negatively regulate NK cell function. In addition, NK cells express high levels of IL-1R8, which acts as a checkpoint for IL-18 driven differentiation and activation of NK cells. Evidence suggests that targeting the myeloid cell-NK cell crosstalk unleashes effective anti-tumour and anti-viral resistance.
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Affiliation(s)
| | | | - Domenico Mavilio
- Humanitas Research Hospital, Rozzano, Italy.,Department of Medical Biotechnologies and Translational Medicine (BioMeTra), University of Milan, Milan, Italy
| | - Angela Santoni
- Department of Molecular Medicine, Laboratory Affiliated to Institute Pasteur -Italia, Sapienza University of Rome, Rome, Italy.,IRCCS, Neuromed, Pozzilli, Italy
| | - Lorenzo Moretta
- Immunology Area, Ospedale Pediatrico Bambino Gesù, Rome, Italy
| | - Alberto Mantovani
- Humanitas University, Pieve Emanuele, Italy.,Humanitas Research Hospital, Rozzano, Italy.,The William Harvey Research Institute, Queen Mary University of London, London, UK
| | - Cecilia Garlanda
- Humanitas University, Pieve Emanuele, Italy.,Humanitas Research Hospital, Rozzano, Italy
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35
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Barros MR, de Melo CML, Barros MLCMGR, de Cássia Pereira de Lima R, de Freitas AC, Venuti A. Activities of stromal and immune cells in HPV-related cancers. J Exp Clin Cancer Res 2018; 37:137. [PMID: 29976244 PMCID: PMC6034319 DOI: 10.1186/s13046-018-0802-7] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2018] [Accepted: 06/19/2018] [Indexed: 02/07/2023] Open
Abstract
The immune system is composed of immune as well as non-immune cells. As this system is a well-established component of human papillomavirus- (HPV)-related carcinogenesis, high risk human papillomavirus (hrHPV) prevents its routes and mechanisms in order to cause the persistence of infection. Among these mechanisms are those originated from stromal cells, which include the cancer-associated fibroblasts (CAFs), the myeloid-derived suppressor cells (MDSCs) and the host infected cells themselves, i.e. the keratinocytes. These types of cells play central role since they modulate immune cells activities to create a prosperous milieu for cancer development, and the knowledge how such interactions occur are essential for prognostic assessment and development of preventive and therapeutic approaches. Nevertheless, the precise mechanisms are not completely understood, and this lack of knowledge precluded the development of entirely efficient immunotherapeutic strategies for HPV-associated tumors. As a result, an intense work for attaining how host immune response works, and developing of effective therapies has been applied in the last decade. Based on this, this review aims to discuss the major mechanisms of immune and non-immune cells modulated by hrHPV and the potential and existing immunotherapies involving such mechanisms in HPV-related cancers. It is noticed that the combination of immunotherapies has been demonstrated to be essential for obtaining better results, especially because the possibility of increasing the modulating capacity of the HPV-tumor microenvironment has been shown to be central in strengthening the host immune system.
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Affiliation(s)
- Marconi Rego Barros
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Center of Biological Sciences, Federal University of Pernambuco, Cidade Universitária, Av. Prof Moraes Rego, 1235, Recife, PE CEP-50670-901 Brazil
| | - Cristiane Moutinho Lagos de Melo
- Laboratory of Immunological and Antitumor Analysis (LAIA), Department of Antibiotics, Center of Biological Sciences, Federal University of Pernambuco, Cidade Universitária, Av. Prof Artur de Sá, s/n, Recife, PE CEP-50740-525 Brazil
| | | | - Rita de Cássia Pereira de Lima
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Center of Biological Sciences, Federal University of Pernambuco, Cidade Universitária, Av. Prof Moraes Rego, 1235, Recife, PE CEP-50670-901 Brazil
| | - Antonio Carlos de Freitas
- Laboratory of Molecular Studies and Experimental Therapy (LEMTE), Department of Genetics, Center of Biological Sciences, Federal University of Pernambuco, Cidade Universitária, Av. Prof Moraes Rego, 1235, Recife, PE CEP-50670-901 Brazil
| | - Aldo Venuti
- HPV-Unit, Tumor Immunology and Immunotherapy Unit, Department of Research, Advanced Diagnostic and Technological Innovation, IRCCS Regina Elena National Cancer Institute, Via Elio Chianesi 53, 00144 Rome, Italy
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36
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Zhao L, Niu C, Shi X, Xu D, Li M, Cui J, Li W, Xu J, Jin H. Dendritic cells loaded with the lysate of tumor cells infected with Newcastle Disease Virus trigger potent anti-tumor immunity by promoting the secretion of IFN-γ and IL-2 from T cells. Oncol Lett 2018; 16:1180-1188. [PMID: 30061941 DOI: 10.3892/ol.2018.8785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Accepted: 12/04/2017] [Indexed: 12/14/2022] Open
Abstract
Dendritic cells (DCs) are professional antigen-presenting cells that are pivotal in the generation and sustainability of antitumor immune responses. Whole tumor cell lysates (TCLs) have been used as sources of tumor antigens for the development of DC vaccines. However, the clinical outcomes of the use of TCL-based DC vaccines have so far been unsatisfactory because of the weak immunogenicity of tumor cells. To improve the efficacy of TCL-based DC vaccines, viruses have been used to enhance the immunity of TCLs and to further enhance the antigen delivery and antigen-presenting ability of DCs. The aim of the present study was to improve the antigen-presenting ability of DCs and to use them to effectively activate T lymphocytes. The present study demonstrated that DCs loaded with the lysate of Newcastle Disease Virus (NDV)-infected tumor cells (NDV-TCL) have increased levels of cluster of differentiation 80 (CD80), CD86, CD83 and human leukocyte antigen-antigen D-associated expression, compared with those loaded with TCL alone. The DCs loaded with the NDV-TCL promoted T-cell proliferation and antitumor cytokine secretion from T cells. These results indicated that loading DCs with NDV-TCL could enhance the antigen-presenting ability of the DCs. On the basis of the results of the present study, we hypothesize that this method of loading DCs with NDV-TCL can be used to develop novel DC vaccines for tumor immunotherapy in the future.
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Affiliation(s)
- Lianjing Zhao
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China.,State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, Jilin 130012, P.R. China
| | - Chao Niu
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Xiumin Shi
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Dongsheng Xu
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Min Li
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Jiuwei Cui
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Wei Li
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Jianting Xu
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
| | - Haofan Jin
- Cancer Center, The First Hospital of Jilin University, Changchun, Jilin 130021, P.R. China
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Goodall KJ, Nguyen A, Sullivan LC, Andrews DM. The expanding role of murine class Ib MHC in the development and activation of Natural Killer cells. Mol Immunol 2018; 115:31-38. [PMID: 29789149 DOI: 10.1016/j.molimm.2018.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2017] [Revised: 04/21/2018] [Accepted: 05/02/2018] [Indexed: 12/12/2022]
Abstract
Major Histocompatibility Complex-I (MHC-I) molecules can be divided into class Ia and class Ib, with three distinct class Ib families found in the mouse. These families are designated as Q, T and M and are largely unexplored in terms of their immunological function. Among the class Ib MHC, H2-T23 (Qa-1b) has been a significant target for Natural Killer (NK) cell research, owing to its homology with the human class Ib human leukocyte antigen (HLA)-E. However, recent data has indicated that members of the Q and M family of class Ib MHC also play a critical role in the development and regulation NK cells. Here we discuss the recent advances in the control of NK cells by murine class Ib MHC as a means to stimulate further exploration of these molecules.
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Affiliation(s)
- Katharine J Goodall
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Australia
| | - Angela Nguyen
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Australia
| | - Lucy C Sullivan
- Department of Microbiology and Immunology, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, Australia
| | - Daniel M Andrews
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, Australia.
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Alamri A, Rahman R, Zhang M, Alamri A, Gounni AS, Kung SKP. Semaphorin-3E Produced by Immature Dendritic Cells Regulates Activated Natural Killer Cells Migration. Front Immunol 2018; 9:1005. [PMID: 29867980 PMCID: PMC5954025 DOI: 10.3389/fimmu.2018.01005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 04/23/2018] [Indexed: 12/14/2022] Open
Abstract
Natural killer (NK) cells and dendritic cells (DCs) are two innate immune cells that are critical in regulating innate and adaptive immunity. Cellular functions and migratory responses of NK or DC can be further regulated in NK-DC crosstalk that involves multiple cytokine signals and/or direct cell-cell contacts. Semaphorin-3E (Sema-3E) is a member of a large family of Semaphorin proteins that play diverse regulatory functions in different biological systems upon its binding to the cognate receptors. However, possible role(s) of Sema-3E on the regulation of NK-cell functions has not been elucidated. Here, we first demonstrated that DC and NK cells expressed Sema-3E and its receptors, respectively. To formally address the importance of DC-derived Sema-3E in regulating NK-cell migration, we compared in vitro migratory responses of activated NK cells (aNKs) toward different conditioned media of DCs (immature, lipopolysaccharide- or Poly I:C-stimulated) derived from Sema-3E+/+ or Sema-3E-/- mice. We observed that aNKs exhibited enhanced migrations toward the conditioned medium of the immature Sema-3E-/- DC, when compared with that of the immature Sema-3E+/+ DC. Addition of exogenous recombinant Sema-3E to the conditioned medium of the Sema-3E-/- immature DC (iDC) abrogated such enhanced NK-cell migration. Our current work revealed a novel role of Sema-3E in limiting NK-cell migrations toward iDC in NK-DC crosstalk.
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Affiliation(s)
- Abdulaziz Alamri
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Rahmat Rahman
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Manli Zhang
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
| | - Abeer Alamri
- Department of Oral Biology, University of Manitoba, Winnipeg, MB, Canada
| | | | - Sam K P Kung
- Department of Immunology, University of Manitoba, Winnipeg, MB, Canada
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Alejo A, Ruiz-Argüello MB, Pontejo SM, Fernández de Marco MDM, Saraiva M, Hernáez B, Alcamí A. Chemokines cooperate with TNF to provide protective anti-viral immunity and to enhance inflammation. Nat Commun 2018; 9:1790. [PMID: 29724993 PMCID: PMC5934441 DOI: 10.1038/s41467-018-04098-8] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Accepted: 04/03/2018] [Indexed: 12/16/2022] Open
Abstract
The role of cytokines and chemokines in anti-viral defense has been demonstrated, but their relative contribution to protective anti-viral responses in vivo is not fully understood. Cytokine response modifier D (CrmD) is a secreted receptor for TNF and lymphotoxin containing the smallpox virus-encoded chemokine receptor (SECRET) domain and is expressed by ectromelia virus, the causative agent of the smallpox-like disease mousepox. Here we show that CrmD is an essential virulence factor that controls natural killer cell activation and allows progression of fatal mousepox, and demonstrate that both SECRET and TNF binding domains are required for full CrmD activity. Vaccination with recombinant CrmD protects animals from lethal mousepox. These results indicate that a specific set of chemokines enhance the inflammatory and protective anti-viral responses mediated by TNF and lymphotoxin, and illustrate how viruses optimize anti-TNF strategies with the addition of a chemokine binding domain as soluble decoy receptors.
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Affiliation(s)
- Alí Alejo
- Centro de Investigación en Sanidad Animal; Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, Madrid, 28130, Spain
| | - M Begoña Ruiz-Argüello
- Centro de Investigación en Sanidad Animal; Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Valdeolmos, Madrid, 28130, Spain.,Progenika Biopharma, 48160, Derio, Spain
| | - Sergio M Pontejo
- Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Cantoblanco, Madrid, 28049, Spain.,National Institutes of Health, Bethesda, Maryland, 20892, USA
| | - María Del Mar Fernández de Marco
- Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Cantoblanco, Madrid, 28049, Spain.,Animal & Plant Health Agency, Addlestone, Surrey, KT15 3NB, UK
| | - Margarida Saraiva
- Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, CB2 2QQ, United Kingdom.,Institute for Molecular and Cell Biology, 4200-135, Porto, Portugal
| | - Bruno Hernáez
- Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Cantoblanco, Madrid, 28049, Spain
| | - Antonio Alcamí
- Centro de Biología Molecular Severo Ochoa (Consejo Superior de Investigaciones Científicas and Universidad Autónoma de Madrid), Cantoblanco, Madrid, 28049, Spain. .,Department of Medicine, University of Cambridge, Addenbrooke's Hospital, Cambridge, CB2 2QQ, United Kingdom.
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40
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Faas MM, De Vos P. Innate immune cells in the placental bed in healthy pregnancy and preeclampsia. Placenta 2018; 69:125-133. [PMID: 29748088 DOI: 10.1016/j.placenta.2018.04.012] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 03/23/2018] [Accepted: 04/23/2018] [Indexed: 12/18/2022]
Abstract
Immune cells in the placental bed are important for adequate development of the placental bed. The most prominent immune cells in the placental bed early in pregnancy are uterine natural killer cells (uNK) cells and macrophages. Also dendritic cells and mast cells can be found in the early placental bed. These cells not only have an immune regulatory function, but are also involved in the regulation of trophoblast invasion, angiogenesis and spiral artery remodeling. In preeclampsia, one of the major complications of pregnancy, decreased trophoblast invasion and spiral artery remodeling has been found. This is associated with decreased numbers of uNK cells, increased numbers of macrophages around the spiral arteries and similar or increased numbers of dendritic cells in the placental bed. In this review, we discuss the current insights in the functions of uNK cells, macrophages, dendritic cells and mast cells in the placental bed in humans during healthy pregnancy and during preeclampsia. As animal models are instrumental in understanding the role of immune cells in the placental bed, we also review studies on the function and phenotype of these innate immune cells in experimental preeclampsia. A better understanding of the dynamics and functional changes of these immune cells in the placental bed may eventually lead to new therapeutic targets for preeclampsia.
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Affiliation(s)
- Marijke M Faas
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands; Department of Obstetrics and Gynecology, University of Groningen and University Medical Center Groningen, Groningen, The Netherlands.
| | - Paul De Vos
- Immunoendocrinology, Division of Medical Biology, Department of Pathology and Medical Biology, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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Gianchecchi E, Delfino DV, Fierabracci A. NK cells in autoimmune diseases: Linking innate and adaptive immune responses. Autoimmun Rev 2018; 17:142-154. [DOI: 10.1016/j.autrev.2017.11.018] [Citation(s) in RCA: 67] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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42
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Manches O, Muniz LR, Bhardwaj N. Dendritic Cell Biology. Hematology 2018. [DOI: 10.1016/b978-0-323-35762-3.00023-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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43
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Identification of GAD65 AA 114-122 reactive 'memory-like' NK cells in newly diagnosed Type 1 diabetic patients by HLA-class I pentamers. PLoS One 2017; 12:e0189615. [PMID: 29236750 PMCID: PMC5728516 DOI: 10.1371/journal.pone.0189615] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 11/29/2017] [Indexed: 01/24/2023] Open
Abstract
Type 1 diabetes is an autoimmune disease, in which pancreatic β cells are destroyed by autoreactive T cells in genetically predisposed individuals. Serum beta cell autoantibody specificities have represented the mainstay for classifying diabetes as autoimmune-mediated and for stratifying risk in first-degree relatives. In recent years, approaches were attempted to solve the difficult issue of detecting rare antigen-specific autoreactive T cells and their significance to etiopathogenesis such as the use of the MHC multimer technology. This tool allowed the specific detection of increased percentages of GAD65 autoreactive T cells by means of HLA A*02:01 GAD65 AA 114–122 pentamers in newly diagnosed diabetics. Here we provide evidence that GAD65 AA 114–122 pentamers can depict a GAD65 AA114-122 peptide expandable population of functionally and phenotypically skewed, preliminary characterized CD3-CD8dullCD56+ ‘memory-like’ NK cells in PBMC of newly diagnosed diabetics. Our data suggest that the NK cell subset could bind the HLA class I GAD65 AA 114–122 pentamer through ILT2 inhibitory receptor. CD107a expression revealed increased degranulation of CD3-CD8dullCD56+ NK cells in GAD65 AA 114–122 and FLU peptide expanded peripheral blood mononuclear cells of diabetics following GAD65 AA 114–122 peptide HLA A*02:01 presentation in respect to the unpulsed condition. CD107a expression was enriched in ILT2 positive NK cells. As opposite to basal conditions where similar percentages of CD3-CD56+ILT2+ cells were detected in diabetics and controls, CD3-CD56+CD107a+ and CD3-CD56+ILT2+CD107a+ cells were significantly increased in T1D PBMC either GAD65 AA 114–122 or FLU peptides stimulated after co-culture with GAD65 AA 114–122 pulsed APCs. As control, healthy donor NK cells showed similar degranulation against both GAD65 AA 114–122 pulsed and unpulsed APCs. The pathogenetic significance of the CD3-CD8dullCD56+ ‘memory-like NK cell subset’ with increased response upon secondary challenge in diabetics remains to be elucidated.
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Puttur F, Francozo M, Solmaz G, Bueno C, Lindenberg M, Gohmert M, Swallow M, Tufa D, Jacobs R, Lienenklaus S, Kühl AA, Borkner L, Cicin-Sain L, Holzmann B, Wagner H, Berod L, Sparwasser T. Conventional Dendritic Cells Confer Protection against Mouse Cytomegalovirus Infection via TLR9 and MyD88 Signaling. Cell Rep 2017; 17:1113-1127. [PMID: 27760315 DOI: 10.1016/j.celrep.2016.09.055] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2016] [Revised: 08/09/2016] [Accepted: 09/16/2016] [Indexed: 12/17/2022] Open
Abstract
Cytomegalovirus (CMV) is an opportunistic virus severely infecting immunocompromised individuals. In mice, endosomal Toll-like receptor 9 (TLR9) and downstream myeloid differentiation factor 88 (MyD88) are central to activating innate immune responses against mouse CMV (MCMV). In this respect, the cell-specific contribution of these pathways in initiating anti-MCMV immunity remains unclear. Using transgenic mice, we demonstrate that TLR9/MyD88 signaling selectively in CD11c+ dendritic cells (DCs) strongly enhances MCMV clearance by boosting natural killer (NK) cell CD69 expression and IFN-γ production. In addition, we show that in the absence of plasmacytoid DCs (pDCs), conventional DCs (cDCs) promote robust NK cell effector function and MCMV clearance in a TLR9/MyD88-dependent manner. Simultaneously, cDC-derived IL-15 regulates NK cell degranulation by TLR9/MyD88-independent mechanisms. Overall, we compartmentalize the cellular contribution of TLR9 and MyD88 signaling in individual DC subsets and evaluate the mechanism by which cDCs control MCMV immunity.
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Affiliation(s)
- Franz Puttur
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany
| | - Marcela Francozo
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany; Ribeirão Preto Medical School, University of São Paulo, Avenida Bandeirantes 3900, Ribeirão Preto, São Paulo 14049-900, Brazil
| | - Gülhas Solmaz
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany
| | - Carlos Bueno
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany; Laboratorio de Virología, Departamento de Química Biológica, IQUIBICEN, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Buenos Aires C1428EGA, Argentina
| | - Marc Lindenberg
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany
| | - Melanie Gohmert
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany
| | - Maxine Swallow
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany
| | - Dejene Tufa
- Department of Clinical Immunology and Rheumatology, MHH, 30625 Hannover, Germany
| | - Roland Jacobs
- Department of Clinical Immunology and Rheumatology, MHH, 30625 Hannover, Germany
| | - Stefan Lienenklaus
- Institute for Laboratory Animal Science, MHH, Carl-Neuberg-Strasse 1, 30625 Hannover, Germany; Institute for Experimental Infection Research, Twincore, MHH and HZI, Feodor-Lynen-Strasse 7, 30625 Hannover, Germany
| | - Anja A Kühl
- Medical Department (Gastroenterology, Infectious Diseases and Rheumatology)/Research Center ImmunoScience, Charité-Universitätsmedizin Berlin, Campus Benjamin Franklin, 12200 Berlin, Germany
| | - Lisa Borkner
- Department for Vaccinology/Immune Aging and Chronic Infection, HZI, 38124 Braunschweig, Germany
| | - Luka Cicin-Sain
- Department for Vaccinology/Immune Aging and Chronic Infection, HZI, 38124 Braunschweig, Germany
| | - Bernard Holzmann
- Department of Surgery, Technische Universität München, 81675 Munich, Germany
| | - Hermann Wagner
- Institute for Medical Microbiology, Immunology and Hygiene, Technische Universität München, 81675 Munich, Germany
| | - Luciana Berod
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany
| | - Tim Sparwasser
- Institute of Infection Immunology, Centre for Experimental and Clinical Infection Research (Twincore), Hannover Medical School (MHH) and Helmholtz Centre for Infection Research (HZI), 30625 Hannover, Germany.
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Alamri A, Soussi Gounni A, Kung SKP. View Point: Semaphorin-3E: An Emerging Modulator of Natural Killer Cell Functions? Int J Mol Sci 2017; 18:E2337. [PMID: 29113093 PMCID: PMC5713306 DOI: 10.3390/ijms18112337] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2017] [Revised: 10/21/2017] [Accepted: 11/01/2017] [Indexed: 12/29/2022] Open
Abstract
Semaphorin-3E (Sema-3E) is a member of a large family of proteins originally identified as axon guidance cues in neural development. It is expressed in different cell types, such as immune cells, cancer cells, neural cells, and epithelial cells. Subsequently, dys-regulation of Sema-3E expression has been reported in various biological processes that range from cancers to autoimmune and allergic diseases. Recent work in our laboratories revealed a critical immunoregulatory role of Sema-3E in experimental allergic asthma. We further speculate possible immune modulatory function(s) of Sema-3E on natural killer (NK) cells.
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Affiliation(s)
- Abdulaziz Alamri
- Department of Immunology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Abdelilah Soussi Gounni
- Department of Immunology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0T5, Canada.
| | - Sam K P Kung
- Department of Immunology, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, MB R3E 0T5, Canada.
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46
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Dose of Retroviral Infection Determines Induction of Antiviral NK Cell Responses. J Virol 2017; 91:JVI.01122-17. [PMID: 28904191 PMCID: PMC5660477 DOI: 10.1128/jvi.01122-17] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Accepted: 09/01/2017] [Indexed: 02/07/2023] Open
Abstract
Natural killer (NK) cells are part of the innate immune system and recognize virus-infected cells as well as tumor cells. Conflicting data about the beneficial or even detrimental role of NK cells in different infectious diseases have been described previously. While the type of pathogen strongly influences NK cell functionality, less is known about how the infection dose influences the quality of a NK cell response against retroviruses. In this study, we used the well-established Friend retrovirus (FV) mouse model to investigate the impact of virus dose on the induction of antiviral NK cell functions. High-dose virus inoculation increased initial virus replication compared to that with medium- or low-dose viral challenge and significantly improved NK cell activation. Antiviral NK cell activity, including in vivo cytotoxicity toward infected target cells, was also enhanced by high-dose virus infection. NK cell activation following high-dose viral challenge was likely mediated by activated dendritic cells (DCs) and macrophages and the NK cell-stimulating cytokines interleukin 15 (IL-15) and IL-18. Neutralization of these cytokines decreased NK cell functions and increased viral loads, whereas IL-15 and IL-18 therapy improved NK cell activity. Here we demonstrate that virus dose positively correlates with antiviral NK cell activity and function, which are at least partly driven by IL-15 and IL-18. Our results suggest that NK cell activity may be therapeutically enhanced by administering IL-15 and IL-18 in virus infections that inadequately activate NK cells. IMPORTANCE In infections with retroviruses, like HIV and FV infection of mice, NK cells clearly mediate antiviral activities, but they are usually not sufficient to prevent severe pathology. Here we show that the initial infection dose impacts the induction of an antiviral NK cell response during an acute retroviral infection, which had not investigated before. High-dose infection resulted in a strong NK cell functionality, whereas no antiviral activities were detected after low- or medium-dose infection. Interestingly, DCs and macrophages were highly activated after high-dose FV challenge, which corresponded with increased levels of NK cell-stimulating cytokines IL-15 and IL-18. IL-15 and IL-18 neutralization decreased NK cell functions, whereas IL-15 and IL-18 therapy improved NK cell activity. Here we show the importance of cytokines for NK cell activation in retroviral infections; our findings suggest that immunotherapy combining the well-tolerated cytokines IL-15 and IL-18 might be an interesting approach for antiretroviral treatment.
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Innate Immune Basis for Rift Valley Fever Susceptibility in Mouse Models. Sci Rep 2017; 7:7096. [PMID: 28769107 PMCID: PMC5541133 DOI: 10.1038/s41598-017-07543-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 06/29/2017] [Indexed: 12/20/2022] Open
Abstract
Rift Valley fever virus (RVFV) leads to varied clinical manifestations in animals and in humans that range from moderate fever to fatal illness, suggesting that host immune responses are important determinants of the disease severity. We investigated the immune basis for the extreme susceptibility of MBT/Pas mice that die with mild to acute hepatitis by day 3 post-infection compared to more resistant BALB/cByJ mice that survive up to a week longer. Lower levels of neutrophils observed in the bone marrow and blood of infected MBT/Pas mice are unlikely to be causative of increased RVFV susceptibility as constitutive neutropenia in specific mutant mice did not change survival outcome. However, whereas MBT/Pas mice mounted an earlier inflammatory response accompanied by higher amounts of interferon (IFN)-α in the serum compared to BALB/cByJ mice, they failed to prevent high viral antigen load. Several immunological alterations were uncovered in infected MBT/Pas mice compared to BALB/cByJ mice, including low levels of leukocytes that expressed type I IFN receptor subunit 1 (IFNAR1) in the blood, spleen and liver, delayed leukocyte activation and decreased percentage of IFN-γ-producing leukocytes in the blood. These observations are consistent with the complex mode of inheritance of RVFV susceptibility in genetic studies.
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48
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Duan X, Lu J, Wang H, Liu X, Wang J, Zhou K, Jiang W, Wang Y, Fang M. Bidirectional factors impact the migration of NK cells to draining lymph node in aged mice during influenza virus infection. Exp Gerontol 2017; 96:127-137. [PMID: 28669820 DOI: 10.1016/j.exger.2017.06.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 06/14/2017] [Accepted: 06/28/2017] [Indexed: 02/03/2023]
Abstract
Natural killer (NK) cells play an important role in controlling several viral diseases. Our previous studies demonstrated an age-dependent susceptibility to mousepox due to defective NK cell responses and trafficking. However, the mechanisms that underlie the age-related impairment in NK cell migration have yet to be identified. In the present study, we demonstrated that after influenza A virus (IAV) infection, NK cells from aged mice (17-19months old) failed to accumulate in draining lymph node (D-LN). We found that both environmental and intrinsic factors played roles for this defect. After infection, increase of chemokine transcripts, especially CXCL9, 10 and 11, which are important for NK cells homing to D-LN, was significantly lower in the D-LN of aged mice compared with those of young mice. Further, the expression levels of β2-integrins and β-actins, which play critical roles in NK cells homing to D-LN failed to be up-regulated in NK cells from aged mice. Finally, actin polymerization rates in NK cells from aged mice were also delayed compared to that of the young mice after IAV infection. Taken together, our data indicate that bi-directional factors play essential roles in the defective NK cell trafficking to the D-LN in the aged mice after IAV infection.
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Affiliation(s)
- Xuefeng Duan
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.
| | - Jiao Lu
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing, China
| | - Haoyu Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing 100101, China; Institute of Health Sciences, Anhui University, Hefei, China
| | - Xiaofei Liu
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, China.
| | - Jing Wang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing 100101, China; University of Chinese Academy of Sciences, Beijing, China
| | - Kai Zhou
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.
| | - Wei Jiang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing 100101, China.
| | - Yingchun Wang
- State Key Laboratory of Molecular Developmental Biology, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, China.
| | - Min Fang
- CAS Key Laboratory of Pathogenic Microbiology and Immunology, Institute of Microbiology, Chinese Academy of Sciences, NO. 1 Beichen West Road, Chaoyang District, Beijing 100101, China; International College, University of Chinese Academy of Sciences, Beijing, China.
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Nash WT, Gillespie AL, Brown MG. Murine Cytomegalovirus Disrupts Splenic Dendritic Cell Subsets via Type I Interferon-Dependent and -Independent Mechanisms. Front Immunol 2017; 8:251. [PMID: 28337202 PMCID: PMC5343017 DOI: 10.3389/fimmu.2017.00251] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 02/20/2017] [Indexed: 01/08/2023] Open
Abstract
Dendritic cells (DC) are well-known modulators of immunity. This heterogeneous population is composed of defined subsets that exhibit functional specialization and are critical in initiating responses to pathogens. As such, many infectious agents employ strategies to disrupt DC functioning in attempts to evade the immune system. In some instances, this manifests as an outright loss of these cells. Previous work has suggested that, in the absence of an efficient natural killer (NK) cell response, murine cytomegalovirus (MCMV) induces large amounts of interferon (IFN)-I. This heightened IFN-I response is thought to contribute to conventional DC (cDC) loss and delayed development of T cell immunity. However, the precise role of IFN-I in such cDC loss remains unclear. We investigated the effects of licensed NK cells and IFN-I signaling on splenic cDC subsets during MCMV infection and found that a licensed NK cell response partially protects cDC numbers, but does not prevent increases in serum IFN-I. This suggested that high residual IFN-I could contribute to cDC loss. Therefore, we used multiple strategies to modulate IFN-I signaling during MCMV infection including plasmacytoid DC depletion, IFN-I receptor (IFNAR) blockade, and genetic ablation of IFNAR expression. Interestingly, restriction of IFN-I signals did not substantially preserve either CD8+ or CD4+ DC total numbers, but resulted in significant retention and/or accumulation of the splenic CD8− CD4− [double negative (DN)] subset. However, the DN DC effect manifested in a DC-extrinsic manner since IFNAR-deficient cells were not preferentially retained over their IFNAR wild-type counterparts in a mixed-chimera setting. Our results show that IFN-I signaling is not responsible for overt cDC toxicity in the setting of acute MCMV infection and emphasize that additional mechanisms contribute to DC loss and require exploration.
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Affiliation(s)
- William T Nash
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, Charlottesville, VA, USA; Beirne B. Carter Center for Immunology Research, School of Medicine, University of Virginia, Charlottesville, VA, USA; Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Alyssa L Gillespie
- Beirne B. Carter Center for Immunology Research, School of Medicine, University of Virginia, Charlottesville, VA, USA; Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA, USA
| | - Michael G Brown
- Department of Microbiology, Immunology, and Cancer Biology, School of Medicine, University of Virginia, Charlottesville, VA, USA; Beirne B. Carter Center for Immunology Research, School of Medicine, University of Virginia, Charlottesville, VA, USA; Division of Nephrology, Department of Medicine, University of Virginia, Charlottesville, VA, USA
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Kouwaki T, Okamoto M, Tsukamoto H, Fukushima Y, Oshiumi H. Extracellular Vesicles Deliver Host and Virus RNA and Regulate Innate Immune Response. Int J Mol Sci 2017; 18:ijms18030666. [PMID: 28335522 PMCID: PMC5372678 DOI: 10.3390/ijms18030666] [Citation(s) in RCA: 80] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 03/13/2017] [Accepted: 03/16/2017] [Indexed: 12/12/2022] Open
Abstract
The innate immune system plays a crucial role in controlling viral infection. Pattern recognition receptors (PRRs), such as Toll-like receptors and RIG-I-like receptors, sense viral components called pathogen-associated molecular patterns (PAMPs) and trigger signals to induce innate immune responses. Extracellular vesicles (EVs), including exosomes and microvesicles, deliver functional RNA and mediate intercellular communications. Recent studies have revealed that EVs released from virus-infected cells deliver viral RNA to dendritic cells and macrophages, thereby activating PRRs in recipient cells, which results in the expression of type I interferon and pro-inflammatory cytokines. On the other hand, EVs transfer not only viral RNA but also host microRNAs to recipient cells. Recently, infection of hepatocytes with hepatitis B virus (HBV) was shown to affect microRNA levels in EVs released from virus-infected cells, leading to attenuation of host innate immune response. This suggests that the virus utilizes the EVs and host microRNAs to counteract the antiviral innate immune responses. In this review, we summarize recent findings related to the role of EVs in antiviral innate immune responses.
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Affiliation(s)
- Takahisa Kouwaki
- Department of Immunology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Masaaki Okamoto
- Department of Immunology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Hirotake Tsukamoto
- Department of Immunology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Yoshimi Fukushima
- Department of Immunology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
| | - Hiroyuki Oshiumi
- Department of Immunology, Graduate School of Medical Sciences, Faculty of Life Sciences, Kumamoto University, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
- Japan Science and Technology Agency, PRESTO, 1-1-1 Honjo, Chuo-ku, Kumamoto 860-8556, Japan.
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