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Devulder J, Barrier M, Carrard J, Amniai L, Plé C, Marquillies P, Ledroit V, Ryffel B, Tsicopoulos A, de Nadai P, Duez C. Pulmonary Administration of TLR2/6 Agonist after Allergic Sensitization Inhibits Airway Hyper-Responsiveness and Recruits Natural Killer Cells in Lung Parenchyma. Int J Mol Sci 2024; 25:9606. [PMID: 39273551 PMCID: PMC11394962 DOI: 10.3390/ijms25179606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2024] [Revised: 08/24/2024] [Accepted: 09/02/2024] [Indexed: 09/15/2024] Open
Abstract
Asthma is a chronic lung disease with persistent airway inflammation, bronchial hyper-reactivity, mucus overproduction, and airway remodeling. Antagonizing T2 responses by triggering the immune system with microbial components such as Toll-like receptors (TLRs) has been suggested as a therapeutic concept for allergic asthma. The aim of this study was to evaluate the effect of a TLR2/6 agonist, FSL-1 (Pam2CGDPKHPKSF), administered by intranasal instillation after an allergic airway reaction was established in the ovalbumin (OVA) mouse model and to analyze the role of natural killer (NK) cells in this effect. We showed that FSL-1 decreased established OVA-induced airway hyper-responsiveness and eosinophilic inflammation but did not reduce the T2 or T17 response. FSL-1 increased the recruitment and activation of NK cells in the lung parenchyma and modified the repartition of NK cell subsets in lung compartments. Finally, the transfer or depletion of NK cells did not modify airway hyper-responsiveness and eosinophilia after OVA and/or FSL-1 treatment. Thus, the administration of FSL-1 reduces airway hyper-responsiveness and bronchoalveolar lavage eosinophilia. However, despite modifications of their functions following OVA sensitization, NK cells play no role in OVA-induced asthma and its inhibition by FSL-1. Therefore, the significance of NK cell functions and localization in the airways remains to be unraveled in asthma.
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Affiliation(s)
- Justine Devulder
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Mathieu Barrier
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Julie Carrard
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Latiffa Amniai
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Coline Plé
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Philippe Marquillies
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Valérie Ledroit
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Bernhard Ryffel
- CNRS and University Orleans-INEM (Immuno-Neuro Modulation), UMR7355 INEM, 45071 Orleans , France
| | - Anne Tsicopoulos
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Patricia de Nadai
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
| | - Catherine Duez
- Univ. Lille, CNRS, Inserm, CHU Lille, Institut Pasteur de Lille, U1019-UMR 9017-CIIL-Center for Infection and Immunity of Lille, F-59000 Lille, France
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2
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Hernandez-Lara MA, Richard J, Deshpande DA. Diacylglycerol kinase is a keystone regulator of signaling relevant to the pathophysiology of asthma. Am J Physiol Lung Cell Mol Physiol 2024; 327:L3-L18. [PMID: 38742284 PMCID: PMC11380957 DOI: 10.1152/ajplung.00091.2024] [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: 03/08/2024] [Revised: 04/05/2024] [Accepted: 04/23/2024] [Indexed: 05/16/2024] Open
Abstract
Signal transduction by G protein-coupled receptors (GPCRs), receptor tyrosine kinases (RTKs) and immunoreceptors converge at the activation of phospholipase C (PLC) for the hydrolysis of phosphatidylinositol 4,5-bisphosphate (PIP2) into inositol 1,4,5-trisphosphate (IP3) and diacylglycerol (DAG). This is a point for second-messenger bifurcation where DAG via protein kinase C (PKC) and IP3 via calcium activate distinct protein targets and regulate cellular functions. IP3 signaling is regulated by multiple calcium influx and efflux proteins involved in calcium homeostasis. A family of lipid kinases belonging to DAG kinases (DGKs) converts DAG to phosphatidic acid (PA), negatively regulating DAG signaling and pathophysiological functions. PA, through a series of biochemical reactions, is recycled to produce new molecules of PIP2. Therefore, DGKs act as a central switch in terminating DAG signaling and resynthesis of membrane phospholipids precursor. Interestingly, calcium and PKC regulate the activation of α and ζ isoforms of DGK that are predominantly expressed in airway and immune cells. Thus, DGK forms a feedback and feedforward control point and plays a crucial role in fine-tuning phospholipid stoichiometry, signaling, and functions. In this review, we discuss the previously underappreciated complex and intriguing DAG/DGK-driven mechanisms in regulating cellular functions associated with asthma, such as contraction and proliferation of airway smooth muscle (ASM) cells and inflammatory activation of immune cells. We highlight the benefits of manipulating DGK activity in mitigating salient features of asthma pathophysiology and shed light on DGK as a molecule of interest for heterogeneous diseases such as asthma.
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Affiliation(s)
- Miguel A Hernandez-Lara
- Department of Medicine, Center for Translational Medicine, Jane & Leonard Korman Respiratory Institute, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, United States
| | - Joshua Richard
- Department of Medicine, Center for Translational Medicine, Jane & Leonard Korman Respiratory Institute, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, United States
| | - Deepak A Deshpande
- Department of Medicine, Center for Translational Medicine, Jane & Leonard Korman Respiratory Institute, Sidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, Pennsylvania, United States
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3
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Lepretre F, Gras D, Chanez P, Duez C. Natural killer cells in the lung: potential role in asthma and virus-induced exacerbation? Eur Respir Rev 2023; 32:230036. [PMID: 37437915 DOI: 10.1183/16000617.0036-2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 05/23/2023] [Indexed: 07/14/2023] Open
Abstract
Asthma is a chronic inflammatory airway disorder whose pathophysiological and immunological mechanisms are not completely understood. Asthma exacerbations are mostly driven by respiratory viral infections and characterised by worsening of symptoms. Despite current therapies, asthma exacerbations can still be life-threatening. Natural killer (NK) cells are innate lymphoid cells well known for their antiviral activity and are present in the lung as circulating and resident cells. However, their functions in asthma and its exacerbations are still unclear. In this review, we will address NK cell activation and functions, which are particularly relevant for asthma and virus-induced asthma exacerbations. Then, the role of NK cells in the lungs at homeostasis in healthy individuals will be described, as well as their functions during pulmonary viral infections, with an emphasis on those associated with asthma exacerbations. Finally, we will discuss the involvement of NK cells in asthma and virus-induced exacerbations and examine the effect of asthma treatments on NK cells.
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Affiliation(s)
- Florian Lepretre
- Aix-Marseille Université, INSERM, INRAE, C2VN, Marseille, France
| | - Delphine Gras
- Aix-Marseille Université, INSERM, INRAE, C2VN, Marseille, France
| | - Pascal Chanez
- Aix-Marseille Université, INSERM, INRAE, C2VN, Marseille, France
- APHM, Hôpital Nord, Clinique des Bronches, de l'allergie et du sommeil, Marseille, France
| | - Catherine Duez
- Aix-Marseille Université, INSERM, INRAE, C2VN, Marseille, France
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4
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Pur Ozyigit L, Aktas EC, Gelmez YM, Ozturk AB, Gemicioglu B, Deniz G. Functionality of natural killer cells in obese asthma phenotypes. Clin Exp Allergy 2022; 52:1432-1439. [PMID: 35359028 DOI: 10.1111/cea.14136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Revised: 03/15/2022] [Accepted: 03/20/2022] [Indexed: 01/26/2023]
Abstract
BACKGROUND Obesity-associated asthma (OA) is a difficult to treat asthma phenotype due to its severity and poor response to inhaled steroids. Early-onset allergic (EoOA) and late-onset non-allergic (LoOA) OA are suggested subtypes of this phenotype. Natural Killer (NK) cells are key elements of innate immunity involved in cytotoxicity and immune regulation, with uncertain role in OA pathogenesis. METHODS Early-onset allergic and LoOA patients together with obese non-asthmatic (ONA) controls have been enrolled in the study. Peripheral blood samples have been collected for analysis. Percentages of total NK cells, CD3- CD56dim and CD3- CD56bright NK cell subsets, cytotoxic activity, intracellular interferon-γ, interleukin (IL)-10, IL-13, IL-17 secretion and activatory receptors (NKG2D, NKp46i and NKp44) have been investigated by flow cytometry. The effect of IL-12 and IL-23 stimulation on NK cells and intracellular cytokines in different groups have also been analysed and compared with unstimulated conditions. RESULTS Results of ONA (n = 5, age 42 ± 8), EoOA (n = 5, age 42 ± 10) and LoOA (n = 8, age 46 ± 8) patients have analysed. Body Mass Index has been found to be negatively correlated with CD69 (p = .022, r = -0.534). NKG2D receptor has been significantly low in CD56dim cells of asthma population (p = .046). NKp44 receptor expression has increased after IL-12 stimulation in EoOA and control group (p = .02). Intracellular IL-10 content has increased in LoOA and control subjects (p = .018, p = .03) but not in the EoOA group. Intracellular IL-17 level has found be higher in allergic OA group. LoOA patients showed a decreased NK cytotoxicity compared with the early-onset asthma group (p = .05). CONCLUSION Our study suggests an impaired NK receptor expression, activation and reduced cytotoxicity in OA patients together with variances between different subtypes of this phenotype. This data would be beneficial for tailoring a more personalized treatment strategy combatting steroid resistance and frequent exacerbations in this group of patients.
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Affiliation(s)
- Leyla Pur Ozyigit
- Adult Allergy Service, Glenfield Hospital, University Hospitals of Leicester NHS Trust, Leicester, UK.,Department of Immunology, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Esin Cetin Aktas
- Department of Immunology, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Yusuf Metin Gelmez
- Department of Immunology, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
| | - Ayse Bilge Ozturk
- Department of Allergy and Immunology, Faculty of Medicine, Koc University, Istanbul
| | - Bilun Gemicioglu
- Department of Pulmonary Diseases, Cerrahpasa Faculty of Medicine, Istanbul University-Cerrahpasa, Istanbul, Turkey
| | - Gunnur Deniz
- Department of Immunology, Aziz Sancar Institute of Experimental Medicine, Istanbul University, Istanbul, Turkey
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5
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Zhou X, Yu W, Dunham DM, Schuetz JP, Blish CA, DeKruyff RH, Nadeau KC. Cytometric analysis reveals an association between allergen-responsive natural killer cells and human peanut allergy. J Clin Invest 2022; 132:157962. [PMID: 36250466 PMCID: PMC9566921 DOI: 10.1172/jci157962] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2021] [Accepted: 08/16/2022] [Indexed: 11/26/2022] Open
Abstract
Food allergies are a leading cause of anaphylaxis, and allergen-specific immune responses in both the innate and the adaptive immune system play key roles in its pathogenesis. We conducted a comprehensive phenotypic and functional investigation of immune cell responses from nonallergic (NA) and peanut allergic (PA) participants cultured with media alone or peanut protein and found, surprisingly, that NK cell activation was strongly associated with the immune response to allergen in PA participants. Peanut-responsive NK cells manifested a distinct expression pattern in PA participants compared with NA participants. Allergen-activated NK cells expressed both Th2 and immune regulatory cytokines, hinting at a potential functional role in mediating and regulating the Th2 allergic response. Depletion of CD3+ T cells attenuated the response of NK cells to peanut-allergen stimulation, suggesting that peanut-responsive NK cells are T cell dependent. We also showed that oral immune therapy was associated with decreased NK responses to peanut allergen stimulation in vitro. These results demonstrate that NK cells are associated with the food-allergic immune response, and the magnitude of this mobilized cell population suggests that they play a functional role in allergic immunity.
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Affiliation(s)
- Xiaoying Zhou
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
| | - Wong Yu
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
- Division of Allergy, Immunology and Blood and Marrow Transplantation, Department of Pediatrics, University of California, San Francisco, California, USA
| | - Diane M. Dunham
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
| | - Jackson P. Schuetz
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
| | - Catherine A. Blish
- Program in Immunology and Department of Medicine, Stanford University School of Medicine, Stanford, California, USA
| | - Rosemarie H. DeKruyff
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
| | - Kari C. Nadeau
- Sean N. Parker Center for Allergy and Asthma Research at Stanford University and Division of Pulmonary, Allergy, and Critical Care Medicine, Stanford, California, USA
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6
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Min KY, Koo J, Noh G, Lee D, Jo MG, Lee JE, Kang M, Hyun SY, Choi WS, Kim HS. CD1d hiPD-L1 hiCD27 + Regulatory Natural Killer Subset Suppresses Atopic Dermatitis. Front Immunol 2022; 12:752888. [PMID: 35069528 PMCID: PMC8766675 DOI: 10.3389/fimmu.2021.752888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 12/09/2021] [Indexed: 11/17/2022] Open
Abstract
Effector and regulatory functions of various leukocytes in allergic diseases have been well reported. Although the role of conventional natural killer (NK) cells has been established, information on its regulatory phenotype and function are very limited. Therefore, the objective of this study was to investigate the phenotype and inhibitory functions of transforming growth factor (TGF)-β-producing regulatory NK (NKreg) subset in mice with MC903-induced atopic dermatitis (AD). Interestingly, the population of TGF-β-producing NK cells in peripheral blood monocytes (PBMCs) was decreased in AD patients than in healthy subjects. The number of TGF-β+ NK subsets was decreased in the spleen or cervical lymph node (cLN), but increased in ear tissues of mice with AD induced by MC903 than those of normal mice. We further observed that TGF-β+ NK subsets were largely included in CD1dhiPD-L1hiCD27+ NK cell subset. We also found that numbers of ILC2s and TH2 cells were significantly decreased by adoptive transfer of CD1dhiPD-L1hiCD27+ NK subsets. Notably, the ratio of splenic Treg per TH2 was increased by the adoptive transfer of CD1dhiPD-L1hiCD27+ NK cells in mice. Taken together, our findings demonstrate that the TGF-β-producing CD1dhiPD-L1hiCD27+ NK subset has a previously unrecognized role in suppressing TH2 immunity and ILC2 activation in AD mice, suggesting that the function of TGF-β-producing NK subset is closely associated with the severity of AD in humans.
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Affiliation(s)
- Keun Young Min
- Department of Immunology, School of Medicine, Konkuk University, Chungju, South Korea
| | - Jimo Koo
- Department of Immunology, School of Medicine, Konkuk University, Chungju, South Korea
| | - Geunwoong Noh
- Department of Allergy, Allergy and Clinical Immunology Center Cheju Halla General Hospital, Jeju, South Korea
| | - Dajeong Lee
- Department of Immunology, School of Medicine, Konkuk University, Chungju, South Korea
| | - Min Geun Jo
- Department of Immunology, School of Medicine, Konkuk University, Chungju, South Korea
| | - Ji Eon Lee
- Department of Immunology, School of Medicine, Konkuk University, Chungju, South Korea
| | - Minseong Kang
- Department of Health Sciences, The Graduate School of Dong-A University, Busan, South Korea
| | - Seung Yeun Hyun
- Department of Health Sciences, The Graduate School of Dong-A University, Busan, South Korea
| | - Wahn Soo Choi
- Department of Immunology, School of Medicine, Konkuk University, Chungju, South Korea
| | - Hyuk Soon Kim
- Department of Health Sciences, The Graduate School of Dong-A University, Busan, South Korea.,Department of Biomedical Sciences, College of Natural Science, Dong-A University, Busan, South Korea
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7
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Feo-Brito F, Alfaya Arias T, Amo-Salas M, Somoza Álvarez ML, Haroun Díaz E, Mayorga Mayorga C, Fernández Santamaría R, Urra Ardanaz JM. Clinical impact and immunological alterations in asthmatic patients allergic to grass pollen subjected to high urban pollution in Madrid. Clin Exp Allergy 2021; 52:530-539. [PMID: 34741765 DOI: 10.1111/cea.14041] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/19/2021] [Accepted: 10/31/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND The prevalence of asthma has increased in recent decades. Among the reasons for this increase is environmental pollution. Pollutants cause bronchial inflammation and introduce modifications in the pollen, making it more allergenic. OBJECTIVE Assess symptoms and medication requirements of asthmatic patients with grass allergies in Madrid (high urban pollution) and Ciudad Real (low pollution), and simultaneously evaluate the in vitro effects that pollen collected in both areas has on the immune cells of patients. METHODS During two pollen seasons, patients from both cities were included. The patients recorded their symptoms and the asthma medication they took daily. In both cities, pollen data, pollutants and meteorological variables were evaluated. The response to different cell populations from patients in both areas were analysed after "in vitro" stimulation with pollen from both cities. RESULTS The symptoms and medication use of the patients in Madrid was 29.94% higher. The NO2 concentration in Madrid was triple that of Ciudad Real (33.4 vs. 9.1 µg/m3 of air). All other pollutants had very similar concentrations during the study period. Pollen from the high pollution area caused a significant enhancement of T-CD8+ and NK cells proliferation compared with pollen of low pollution area, independently of the patient's origin. CONCLUSION Asthmatic patients from Madrid have a worse clinical evolution than those from Ciudad Real because of higher levels of urban pollution, and this could be driven by the higher capacity of pollen of Madrid to activate T-CD8+ and NK cells.
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Affiliation(s)
- Francisco Feo-Brito
- Allergy, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain.,Facultad de Medicina, Universidad de Castilla-La Mancha (UCLM), Ciudad Real, Spain
| | | | - Mariano Amo-Salas
- Facultad de Medicina de Ciudad Real, Departamento de Matemáticas, Universidad de Castilla La Mancha (UCLM), Ciudad Real, Spain
| | | | | | | | - Rubén Fernández Santamaría
- Allergy Research Group, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain.,Allergy Clinical Unit, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - José Miguel Urra Ardanaz
- Facultad de Medicina, Universidad de Castilla-La Mancha (UCLM), Ciudad Real, Spain.,Immunology, Hospital General Universitario de Ciudad Real, Ciudad Real, Spain
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Hsu AT, Gottschalk TA, Tsantikos E, Hibbs ML. The Role of Innate Lymphoid Cells in Chronic Respiratory Diseases. Front Immunol 2021; 12:733324. [PMID: 34630416 PMCID: PMC8492945 DOI: 10.3389/fimmu.2021.733324] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 09/02/2021] [Indexed: 01/08/2023] Open
Abstract
The lung is a vital mucosal organ that is constantly exposed to the external environment, and as such, its defenses are continuously under threat. The pulmonary immune system has evolved to sense and respond to these danger signals while remaining silent to innocuous aeroantigens. The origin of the defense system is the respiratory epithelium, which responds rapidly to insults by the production of an array of mediators that initiate protection by directly killing microbes, activating tissue-resident immune cells and recruiting leukocytes from the blood. At the steady-state, the lung comprises a large collection of leukocytes, amongst which are specialized cells of lymphoid origin known as innate lymphoid cells (ILCs). ILCs are divided into three major helper-like subsets, ILC1, ILC2 and ILC3, which are considered the innate counterparts of type 1, 2 and 17 T helper cells, respectively, in addition to natural killer cells and lymphoid tissue inducer cells. Although ILCs represent a small fraction of the pulmonary immune system, they play an important role in early responses to pathogens and facilitate the acquisition of adaptive immunity. However, it is now also emerging that these cells are active participants in the development of chronic lung diseases. In this mini-review, we provide an update on our current understanding of the role of ILCs and their regulation in the lung. We summarise how these cells and their mediators initiate, sustain and potentially control pulmonary inflammation, and their contribution to the respiratory diseases chronic obstructive pulmonary disease (COPD) and asthma.
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Affiliation(s)
- Amy T Hsu
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Timothy A Gottschalk
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Evelyn Tsantikos
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - Margaret L Hibbs
- Department of Immunology and Pathology, Central Clinical School, Monash University, Melbourne, VIC, Australia
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9
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Huang C, Li F, Wang J, Tian Z. Innate-like Lymphocytes and Innate Lymphoid Cells in Asthma. Clin Rev Allergy Immunol 2021; 59:359-370. [PMID: 31776937 DOI: 10.1007/s12016-019-08773-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Asthma is a chronic pulmonary disease, highly associated with immune disorders. The typical symptoms of asthma include airway hyperresponsiveness (AHR), airway remodeling, mucus overproduction, and airflow limitation. The etiology of asthma is multifactorial and affected by genetic and environmental factors. Increasing trends toward dysbiosis, smoking, stress, air pollution, and a western lifestyle may account for the increasing incidence of asthma. Based on the presence or absence of eosinophilic inflammation, asthma is mainly divided into T helper 2 (Th2) and non-Th2 asthma. Th2 asthma is mediated by allergen-specific Th2 cells, and eosinophils activated by Th2 cells via the secretion of interleukin (IL)-4, IL-5, and IL-13. Different from Th2 asthma, non-Th2 asthma shows little eosinophilic inflammation, resists to corticosteroid treatment, and occurs mainly in severe asthmatic patients. Previous studies of asthma primarily focused on the function of Th2 cells, but, with the discovery of non-Th2 asthma and the involvement of innate lymphoid cells (ILCs) in the pathogenesis of asthma, tissue-resident innate immune cells in the lung have become the focus of attention in asthma research. Currently, innate-like lymphocytes (ILLs) and ILCs as important components of the innate immune system in mucosal tissues are reportedly involved in the pathogenesis of or protection against both Th2 and non-Th2 asthma. These findings of the functions of different subsets of ILLs and ILCs may provide clues for the treatment of asthma.
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Affiliation(s)
- Chao Huang
- Institute of Immunology, University of Science and Technology of China, Hefei, 230027, Anhui, China
| | - Fengqi Li
- Institute of Molecular Health Sciences, ETH Zürich, 8093, Zürich, Switzerland
| | - Jian Wang
- Neuroimmunology and MS Research Section (NIMS), Neurology Clinic, University of Zürich, University Hospital Zürich, 8091, Zürich, Switzerland.
| | - Zhigang Tian
- Institute of Immunology, University of Science and Technology of China, Hefei, 230027, Anhui, China.
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10
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Amniai L, Ple C, Barrier M, de Nadai P, Marquillies P, Vorng H, Chenivesse C, Tsicopoulos A, Duez C. Natural Killer Cells from Allergic Donors Are Defective in Their Response to CCL18 Chemokine. Int J Mol Sci 2021; 22:ijms22083879. [PMID: 33918621 PMCID: PMC8068884 DOI: 10.3390/ijms22083879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/05/2021] [Accepted: 04/07/2021] [Indexed: 11/16/2022] Open
Abstract
Natural killer (NK) cells were originally described as cytolytic effector cells, but since then have been recognized to possess regulatory functions on immune responses. Chemokines locate NK cells throughout the body in homeostatic and pathological conditions. They may also directly stimulate immune cells. CCL18 is a constitutive and inducible chemokine involved in allergic diseases. The aim of this study was to evaluate CCL18’s effect on NK cells from allergic and nonallergic donors in terms of both chemotactic and immune effects. Results showed that CCL18 was able to induce migration of NK cells from nonallergic donors in a G-protein-dependent manner, suggesting the involvement of a classical chemokine receptor from the family of seven-transmembrane domain G-protein-coupled receptors. In contrast, NK cells from allergic patients were unresponsive. Similarly, CCL18 was able to induce NK cell cytotoxicity only in nonallergic subjects. Purified NK cells did not express CCR8, one of the receptors described to be involved in CCL18 functions. Finally, the defect in CCL18 response by NK cells from allergic patients was unrelated to a defect in CCL18 binding to NK cells. Overall, our results suggest that some NK cell functions may be defective in allergic diseases.
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Affiliation(s)
- Latiffa Amniai
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
| | - Coline Ple
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
| | - Mathieu Barrier
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
| | - Patricia de Nadai
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
| | - Philippe Marquillies
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
| | - Han Vorng
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
| | - Cécile Chenivesse
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
- CHU Lille, Service de Pneumologie et Immuno-Allergologie, Centre de Compétence pour les Maladies Pulmonaires Rares, F-59000 Lille, France
| | - Anne Tsicopoulos
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
- CHU Lille, Service de Pneumologie et Immuno-Allergologie, Centre de Compétence pour les Maladies Pulmonaires Rares, F-59000 Lille, France
| | - Catherine Duez
- U1019–UMR 9017-CIIL-Center for Infection and Immunity of Lille, Institut Pasteur de Lille, University of Lille, CNRS, Inserm, CHU Lille, F-59000 Lille, France; (L.A.); (C.P.); (M.B.); (P.d.N.); (P.M.); (H.V.); (C.C.); (A.T.)
- Correspondence:
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11
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Qian Q, Chowdhury BP, Sun Z, Lenberg J, Alam R, Vivier E, Gorska MM. Maternal diesel particle exposure promotes offspring asthma through NK cell-derived granzyme B. J Clin Invest 2021; 130:4133-4151. [PMID: 32407293 DOI: 10.1172/jci130324] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 04/29/2020] [Indexed: 12/31/2022] Open
Abstract
Mothers living near high-traffic roads before or during pregnancy are more likely to have children with asthma. Mechanisms are unknown. Using a mouse model, here we showed that maternal exposure to diesel exhaust particles (DEP) predisposed offspring to allergic airway disease (AAD, murine counterpart of human asthma) through programming of their NK cells; predisposition to AAD did not develop in DEP pups that lacked NK cells and was induced in normal pups receiving NK cells from WT DEP pups. DEP NK cells expressed GATA3 and cosecreted IL-13 and the killer protease granzyme B in response to allergen challenge. Extracellular granzyme B did not kill, but instead stimulated protease-activated receptor 2 (PAR2) to cooperate with IL-13 in the induction of IL-25 in airway epithelial cells. Through loss-of-function and reconstitution experiments in pups, we showed that NK cells and granzyme B were required for IL-25 induction and activation of the type 2 immune response and that IL-25 mediated NK cell effects on type 2 response and AAD. Finally, experiments using human cord blood and airway epithelial cells suggested that DEP might induce an identical pathway in humans. Collectively, we describe an NK cell-dependent endotype of AAD that emerged in early life as a result of maternal exposure to DEP.
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Affiliation(s)
- Qian Qian
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA
| | - Bidisha Paul Chowdhury
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA
| | - Zehua Sun
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA
| | - Jerica Lenberg
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA
| | - Rafeul Alam
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA.,Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
| | - Eric Vivier
- Innate Pharma Research Labs, Innate Pharma, Marseille, France.,Centre d'Immunologie de Marseille-Luminy, CNRS, INSERM, Aix Marseille University, Marseille, France.,Service d'Immunologie, Marseille Immunopole, Hôpital de la Timone, Assistance Publique des Hôpitaux de Marseille, Marseille, France
| | - Magdalena M Gorska
- Division of Allergy and Clinical Immunology, Department of Medicine, National Jewish Health (NJH), Denver, Colorado, USA.,Division of Allergy and Clinical Immunology, Department of Medicine, University of Colorado Anschutz Medical Campus, Aurora, Colorado, USA
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12
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Abstract
The lungs, a special site that is frequently challenged by tumors, pathogens and other environmental insults, are populated by large numbers of innate immune cells. Among these, natural killer (NK) cells are gaining increasing attention. Recent studies have revealed that NK cells are heterogeneous populations consisting of distinct subpopulations with diverse characteristics, some of which are determined by their local tissue microenvironment. Most current information about NK cells comes from studies of NK cells from the peripheral blood of humans and NK cells from the spleen and bone marrow of mice. However, the functions and phenotypes of lung NK cells differ from those of NK cells in other tissues. Here, we provide an overview of human and mouse lung NK cells in the context of homeostasis, pathogenic infections, asthma, chronic obstructive pulmonary disease (COPD) and lung cancer, mainly focusing on their phenotype, function, frequency, and their potential role in pathogenesis or immune defense. A comprehensive understanding of the biology of NK cells in the lungs will aid the development of NK cell-based immunotherapies for the treatment of lung diseases.
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Affiliation(s)
- Jingjing Cong
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Molecular Medicine, School of Life Sciences, University of Science and Technology of China, Hefei, China
- Institue of Immunology, University of Science and Technology of China, Hefei, China
- Division of Life Science and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, China
| | - Haiming Wei
- Hefei National Laboratory for Physical Sciences at Microscale, CAS Key Laboratory of Innate Immunity and Chronic Disease, Division of Molecular Medicine, School of Life Sciences, University of Science and Technology of China, Hefei, China
- Institue of Immunology, University of Science and Technology of China, Hefei, China
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13
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Mast Cells and Natural Killer Cells-A Potentially Critical Interaction. Viruses 2019; 11:v11060514. [PMID: 31167464 PMCID: PMC6631774 DOI: 10.3390/v11060514] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2019] [Revised: 05/31/2019] [Accepted: 06/02/2019] [Indexed: 12/16/2022] Open
Abstract
Natural killer (NK) cells play critical roles in host defense against infectious agents or neoplastic cells. NK cells provide a rapid innate immune response including the killing of target cells without the need for priming. However, activated NK cells can show improved effector functions. Mast cells are also critical for early host defense against a variety of pathogens and are predominately located at mucosal surfaces and close to blood vessels. Our group has recently shown that virus-infected mast cells selectively recruit NK cells and positively modulate their functions through mechanisms dependent on soluble mediators, such as interferons. Here, we review the possible consequences of this interaction in both host defense and pathologies involving NK cell and mast cell activation.
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14
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Panda SK, Colonna M. Innate Lymphoid Cells in Mucosal Immunity. Front Immunol 2019; 10:861. [PMID: 31134050 PMCID: PMC6515929 DOI: 10.3389/fimmu.2019.00861] [Citation(s) in RCA: 168] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2019] [Accepted: 04/03/2019] [Indexed: 12/14/2022] Open
Abstract
Innate lymphoid cells (ILCs) are innate counterparts of T cells that contribute to immune responses by secreting effector cytokines and regulating the functions of other innate and adaptive immune cells. ILCs carry out some unique functions but share some tasks with T cells. ILCs are present in lymphoid and non-lymphoid organs and are particularly abundant at the mucosal barriers, where they are exposed to allergens, commensal microbes, and pathogens. The impact of ILCs in mucosal immune responses has been extensively investigated in the gastrointestinal and respiratory tracts, as well as in the oral cavity. Here we review the state-of-the-art knowledge of ILC functions in infections, allergy and autoimmune disorders of the mucosal barriers.
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Affiliation(s)
- Santosh K Panda
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States
| | - Marco Colonna
- Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO, United States
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15
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Mulcahy EM, Cooley MA, McGuire H, Asad S, Fazekas de St Groth B, Beggs SA, Roddam LF. Widespread alterations in the peripheral blood innate immune cell profile in cystic fibrosis reflect lung pathology. Immunol Cell Biol 2019; 97:416-426. [PMID: 30633378 DOI: 10.1111/imcb.12230] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/30/2018] [Accepted: 12/09/2018] [Indexed: 11/26/2022]
Abstract
Cystic fibrosis (CF) is caused by mutations to the CF transmembrane conductance regulator (CFTR) gene. CFTR is known to be expressed on multiple immune cell subtypes, dendritic cells, monocytes/macrophages, neutrophils and lymphocytes. We hypothesized that the lack of CFTR expression on peripheral blood innate immune cells would result in an altered cell profile in the periphery and that this profile would reflect lung pathology. We performed a flow cytometric phenotypic investigation of innate immune cell proportions in peripheral blood collected from 17 CF patients and 15 age-matched healthy controls. We observed significant differences between CF patients and controls in the relative proportions of natural killer (NK) cells, monocytes and their subsets, with significant correlations observed between proportions of NK and monocyte cell subsets and lung function (forced expiratory volume in 1 sec, % predicted; FEV1% predicted) in CF patients. This study demonstrates the widespread nature of immune dysregulation in CF and provides a basis for identification of potential therapeutic targets. Modulation of the distinct CF-related immune cell phenotype identified could also be an important biomarker for evaluating CFTR-targeted drug efficacy.
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Affiliation(s)
- Emily M Mulcahy
- School of Medicine, University of Tasmania, Hobart, TAS, Australia.,Royal Hobart Hospital, Hobart, TAS, Australia
| | | | - Helen McGuire
- Centenary Institute, Newtown, NSW, Australia.,Discipline of Pathology, University of Sydney, Sydney, NSW, Australia
| | | | - Barbara Fazekas de St Groth
- Centenary Institute, Newtown, NSW, Australia.,Discipline of Pathology, University of Sydney, Sydney, NSW, Australia
| | - Sean A Beggs
- School of Medicine, University of Tasmania, Hobart, TAS, Australia.,Royal Hobart Hospital, Hobart, TAS, Australia
| | - Louise F Roddam
- School of Medicine, University of Tasmania, Hobart, TAS, Australia
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16
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Altman MC, Whalen E, Togias A, O'Connor GT, Bacharier LB, Bloomberg GR, Kattan M, Wood RA, Presnell S, LeBeau P, Jaffee K, Visness CM, Busse WW, Gern JE. Allergen-induced activation of natural killer cells represents an early-life immune response in the development of allergic asthma. J Allergy Clin Immunol 2018; 142:1856-1866. [PMID: 29518416 PMCID: PMC6123299 DOI: 10.1016/j.jaci.2018.02.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Revised: 01/29/2018] [Accepted: 02/12/2018] [Indexed: 01/12/2023]
Abstract
BACKGROUND Childhood asthma in inner-city populations is a major public health burden, and understanding early-life immune mechanisms that promote asthma onset is key to disease prevention. Children with asthma demonstrate a high prevalence of aeroallergen sensitization and TH2-type inflammation; however, the early-life immune events that lead to TH2 skewing and disease development are unknown. OBJECTIVE We sought to use RNA sequencing of PBMCs collected at age 2 years to determine networks of immune responses that occur in children with allergy and asthma. METHODS In an inner-city birth cohort with high asthma risk, we compared gene expression using RNA sequencing in PBMCs collected at age 2 years between children with 2 or more aeroallergen sensitizations, including dust mite, cockroach, or both, by age 3 years and asthma by age 7 years (cases) and matched control subjects who did not have any aeroallergen sensitization or asthma by age 7 years. RESULTS PBMCs from the cases showed higher levels of expression of natural killer (NK) cell-related genes. After cockroach or dust mite allergen but not tetanus antigen stimulation, PBMCs from the cases compared with the control subjects showed differential expression of 244 genes. This gene set included upregulation of a densely interconnected NK cell-like gene network reflecting a pattern of cell activation and induction of inflammatory signaling molecules, including the key TH2-type cytokines IL9, IL13, and CCL17, as well as a dendritic cell-like gene network, including upregulation of CD1 lipid antigen presentation molecules. The NK cell-like response was reproducible in an independent group of children with later-onset allergic sensitization and asthma and was found to be specific to only those children with both aeroallergen sensitization and asthma. CONCLUSION These findings provide important mechanistic insight into an early-life immune pathway involved in TH2 polarization, leading to the development of allergic asthma.
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Affiliation(s)
- Matthew C Altman
- Benaroya Research Institute Systems Immunology Division, Seattle, Wash; Department of Medicine, University of Washington, Seattle, Wash.
| | - Elizabeth Whalen
- Benaroya Research Institute Systems Immunology Division, Seattle, Wash
| | - Alkis Togias
- National Institute of Allergy and Infectious Diseases, Bethesda, Md
| | | | | | | | - Meyer Kattan
- Columbia University College of Physicians and Surgeons, New York, NY
| | - Robert A Wood
- Johns Hopkins University School of Medicine, Baltimore, Md
| | - Scott Presnell
- Benaroya Research Institute Systems Immunology Division, Seattle, Wash
| | | | | | | | - William W Busse
- University of Wisconsin School of Medicine and Public Health, Madison, Wis
| | - James E Gern
- University of Wisconsin School of Medicine and Public Health, Madison, Wis
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17
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Impaired cytolytic activity of asthma-associated natural killer cells is linked to dysregulated transcriptional program in energy metabolism. Mol Immunol 2018; 101:514-520. [PMID: 30145544 DOI: 10.1016/j.molimm.2018.08.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 08/11/2018] [Accepted: 08/15/2018] [Indexed: 11/23/2022]
Abstract
Natural killer (NK) cells are a cytotoxic subset of the innate lymphoid cells, playing essential roles in host defense against tumors and infections, which, however, are usually functionally compromised in chronic diseases. Atopic diseases, such as allergic asthma, characterized by type 2 immune responses, are usually associated with chronic inflammations. Whether asthma -associated immune environment affects the cytolytic function of NK cells has not been elucidated. Here, YTS, a human NK cell line, was exposed to serum from healthy donors or asthma patients for analysis of its cytolytic function. We found that, serum from asthma patients reduced the cytolytic activity of YTS cells against Raji human B lymphoblasts, in comparison with normal serum. The impairment of cytolytic activity of these YTS cells was accompanied with decreased degranulation potentials, weakened conjugation formation with Raji cells, and premature termination of ERK phosphorylation upon stimulation. Meanwhile, apoptosis or cell death of YTS cells was not increased after exposure to serum from asthma patients. Importantly, such impairment of cytolytic activity of asthma -associated YTS NK cells was accompanied with aberrantly enriched genes involved in oxidative phosphorylation. Taken together, these results demonstrate that the serum of asthma patients directly suppresses the cytolytic function of NK cells, possibly through dysregulation of energy metabolism in NK cells.
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18
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Kim JH, Jang YJ. Role of Natural Killer Cells in Airway Inflammation. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2018; 10:448-456. [PMID: 30088365 PMCID: PMC6082815 DOI: 10.4168/aair.2018.10.5.448] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 01/31/2018] [Accepted: 02/23/2018] [Indexed: 12/16/2022]
Abstract
Natural killer (NK) cells have an immune regulatory function as well as cytotoxicity against tumor or infected cells. In the airway, although NK cells constitute a small proportion of the resident lymphocytes, they play an important role in the pathogenesis of chronic inflammatory airway diseases by modulating immune responses. NK cells can promote allergic airway inflammation by increasing the production of type 2 cytokines and inducing eosinophil migration. The increased activity of NK cells can develop or aggravate the destruction of lung parenchymal cells. On the other hand, decreased apoptotic activity of NK cells in eosinophils can serve as an aggravating factor for allergic airway inflammation. The increase in interferon-γ-producing NK cells and the inhibition of type 2 immune response by NK cells can alleviate allergic airway inflammation. This review aims to define the roles of NK cells in chronic inflammatory diseases of lower and upper airways.
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Affiliation(s)
- Ji Heui Kim
- Department of Otorhinolaryngology-Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yong Ju Jang
- Department of Otorhinolaryngology-Head and Neck Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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19
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Abstract
PURPOSE OF REVIEW This review article discusses current knowledge on natural killer (NK) cells in asthma. RECENT FINDINGS It is now well accepted that NK cell activities go beyond cancer immune surveillance and antiviral defense. Recent reports indicate that NK cells are activated in response to allergens in vivo. NK cells promote allergic sensitization, type-2 immune response, development of eosinophilic inflammation, and airway hyperresponsiveness. NK cells are activated by respiratory syncytial virus and other respiratory viruses. When infection occurs in the setting of active allergic inflammation, NK cells augment its magnitude and contribute to asthma exacerbations. Proasthma activities of NK cells can be programmed during embryogenesis through maternal exposure to environmental pollutants. Prenatally programmed NK cells produce type-2 and type-3 cytokines and mediate asthma predisposition. NK cells can also act as asthma antagonists. NK cells contribute to the resolution of inflammation through suppression of antigen-specific CD4+ T cells and type-3 immunity. When viral infection occurs in naïve mice prior to allergic sensitization, NK cells antagonize type-2 immunity and prevent development of asthma. SUMMARY NK cells are nonredundant participants of allergic inflammation. The environmental context determines whether NK cells act as protagonists or antagonists.
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Affiliation(s)
- Magdalena M Gorska
- aNational Jewish Health, Denver bUniversity of Colorado, Aurora, Colorado, USA
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20
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Yan B, Chen F, Xu L, Wang Y, Wang X. Interleukin-28B dampens airway inflammation through up-regulation of natural killer cell-derived IFN-γ. Sci Rep 2017; 7:3556. [PMID: 28620197 PMCID: PMC5472588 DOI: 10.1038/s41598-017-03856-w] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Accepted: 05/08/2017] [Indexed: 12/18/2022] Open
Abstract
Interleukin-28A (IL-28A) modulates CD11c+ dendritic cell (DC) function and promotes type 1T helper (Th1) differentiation, thus suppressing allergic airway diseases. However, the function of the IL-28A isoform IL-28B in these diseases remains largely unknown. In this study, we revealed a novel role of IL-28B in inducing type 1 immunity and protecting against ovalbumin (OVA)-induced allergic asthma in mice. IL-28B overexpression in wild-type mice promoted natural killer (NK) cell polarization in the lung, leading to the increased number of interferon (IFN)-γ-producing NK1 cells as well as Th1 differentiation. Importantly, IL-28B overexpression had no protective effect on OVA-induced asthma in IFN-γ-knockout (IFN-γ−/−) mice. These results demonstrate that IL-28B ameliorates experimental allergic asthma via enhancing NK cell polarization, which might be useful for prevention and treatment of allergic asthma.
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Affiliation(s)
- Bailing Yan
- Department of Emergency, The First Hospital of Jilin University, Changchun, 130021, China
| | - Feng Chen
- Dermatology Department, China-Japan Union Hospital of Jilin University, Changchun, 130033, China
| | - Lijun Xu
- Department of Respiratory Medicine, The First Hospital of Jilin University, Changchun, 130021, China.
| | - Yanshi Wang
- Institute of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, China
| | - Xuefu Wang
- Institute of Immunology, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, 230027, China. .,School of Pharmacology, Anhui Medical University, Hefei, Anhui, 230032, China.
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21
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Son DJ, Jung YY, Park MH, Lee HL, Song MJ, Yoo HS, Hwang DY, Han SB, Hong JT. Activated Natural Killer Cells Mediate the Suppressive Effect of Interleukin-4 on Tumor Development via STAT6 Activation in an Atopic Condition Melanoma Model. Neoplasia 2017; 19:537-548. [PMID: 28587956 PMCID: PMC5459571 DOI: 10.1016/j.neo.2017.02.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2016] [Revised: 02/21/2017] [Accepted: 02/28/2017] [Indexed: 01/02/2023] Open
Abstract
A protective effect of allergy for cancer has been suggested, but the results are somewhat conflicting, and the mechanism remains elusive. Interleukin-4 (IL-4) signaling has been identified as a potentially important pathway in the development of allergies and the suppression of cancer development. To evaluate the allergy responses in IL-4–mediated tumor development, we compared the growth of B16F10 melanoma cells in 4% phthalic anhydride (PA)-treated IL-4/Luc/CNS-1 transgenic mice (IL-4 mice) and acetone-olive oil (AOO)–treated IL-4 mice as a control for 3 weeks. Much higher allergic responses and natural killer (NK) and STAT6 activation were found in PA-treated IL-4 mice compared with AOO-treated IL-4 control mice. Tumor volume and weight showed an inverse association with the higher allergic response and were significantly reduced in the PA-treated IL-4 mice when compared with those of AOO-treated IL-4 control mice. Significantly higher activation of STAT6, as well as IL-4 and NK cell activation, was found in the tumor tissues of PA-treated IL-4 mice. Infiltration of immune cells and cytokine levels were also higher in the tumor tissues of PA-treated IL-4 mice. We further found that IL-4–activated NK-92MI cells showed increased anticancer effects in human melanoma cells. Overall, these results showed that allergy responses further accelerated the IL-4–induced inhibition of tumor development through the activation of STAT6 pathways.
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Affiliation(s)
- Dong Ju Son
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaengmyeong 1-ro, Osong-eup, Heungduk-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Yu Yeon Jung
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaengmyeong 1-ro, Osong-eup, Heungduk-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Mi Hee Park
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaengmyeong 1-ro, Osong-eup, Heungduk-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Hye Lim Lee
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaengmyeong 1-ro, Osong-eup, Heungduk-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Min Ji Song
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaengmyeong 1-ro, Osong-eup, Heungduk-gu, Cheongju, Chungbuk 28160, Republic of Korea; Department of Obstetrics and Gynecology, Daejeon St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 64 Daeheung-ro, Jung-gu, Daejeon 34943, Republic of Korea
| | - Hwan-Soo Yoo
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaengmyeong 1-ro, Osong-eup, Heungduk-gu, Cheongju, Chungbuk 28160, Republic of Korea
| | - Dae Youn Hwang
- Department of Biomaterial Science, Pusan National University, Miryang, Kyungnam 50463, Republic of Korea
| | - Sang Bae Han
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaengmyeong 1-ro, Osong-eup, Heungduk-gu, Cheongju, Chungbuk 28160, Republic of Korea.
| | - Jin Tae Hong
- College of Pharmacy and Medical Research Center, Chungbuk National University, 194-31 Osongsaengmyeong 1-ro, Osong-eup, Heungduk-gu, Cheongju, Chungbuk 28160, Republic of Korea.
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22
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Tubby C, Negm OH, Harrison T, Tighe PJ, Todd I, Fairclough LC. Peripheral killer cells do not differentiate between asthma patients with or without fixed airway obstruction. J Asthma 2016; 54:456-466. [PMID: 27736259 DOI: 10.1080/02770903.2016.1236941] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE The three main types of killer cells - CD8+ T cells, NK cells and NKT cells - have been linked to asthma and chronic obstructive pulmonary disease (COPD). However, their role in a small subset of asthma patients displaying fixed airway obstruction (FAO), similar to that seen in COPD, has not been explored. The objective of the present study was to investigate killer cell numbers, phenotype and function in peripheral blood from asthma patients with FAO, asthma patients without FAO, and healthy individuals. METHODS Peripheral CD8+ T cells (CD8+CD3+CD56-), NK cells (CD56+CD3-) and NKT-like cells (CD56+CD3+) of 14 asthma patients with FAO (post-bronchodilator FEV/FVC <0.7, despite clinician-optimised treatment), 7 asthma patients without FAO (post-bronchodilator FEV/FVC ≥ 0.7), and 9 healthy individuals were studied. RESULTS No significant differences were seen between the number, receptor expression, MAPK signalling molecule expression, cytotoxic mediator expression, and functional cytotoxicity of peripheral killer cells from asthma patients with FAO, asthma patients without FAO and healthy individuals. CONCLUSIONS Peripheral killer cell numbers or functions do not differentiate between asthma patients with or without fixed airway obstruction.
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Affiliation(s)
- Carolyn Tubby
- a School of Life Sciences, University of Nottingham , Nottingham , UK
| | - Ola H Negm
- a School of Life Sciences, University of Nottingham , Nottingham , UK.,b Medical Microbiology and Immunology Department , Faculty of Medicine, Mansoura University , Mansoura , Egypt
| | - Timothy Harrison
- c Nottingham Respiratory Research Unit, Division of Respiratory Medicine , School of Medicine, University of Nottingham , Nottingham , UK
| | - Patrick J Tighe
- a School of Life Sciences, University of Nottingham , Nottingham , UK
| | - Ian Todd
- a School of Life Sciences, University of Nottingham , Nottingham , UK
| | - Lucy C Fairclough
- a School of Life Sciences, University of Nottingham , Nottingham , UK
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Long X, Xie J, Zhao K, Li W, Tang W, Chen S, Zang N, Ren L, Deng Y, Xie X, Wang L, Fu Z, Liu E. NK cells contribute to persistent airway inflammation and AHR during the later stage of RSV infection in mice. Med Microbiol Immunol 2016; 205:459-70. [PMID: 27329138 DOI: 10.1007/s00430-016-0459-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Accepted: 05/24/2016] [Indexed: 01/18/2023]
Abstract
RSV can lead to persistent airway inflammation and AHR and is intimately associated with childhood recurrent wheezing and asthma, but the underlying mechanisms remain unclear. There are high numbers of NK cells in the lung, which not only play important roles in the acute stage of RSV infection, but also are pivotal in regulating the pathogenesis of asthma. Therefore, in this study, we assumed that NK cells might contribute to persistent airway disease during the later stage of RSV infection. Mice were killed at serial time points after RSV infection to collect samples. Leukocytes in bronchoalveolar lavage fluid (BALF) were counted, lung histopathology was examined, and airway hyperresponsiveness (AHR) was measured by whole-body plethysmography. Cytokines were detected by ELISA, and NK cells were determined by flow cytometry. Rabbit anti-mouse asialo-GM-1 antibodies and resveratrol were used to deplete or suppress NK cells. Inflammatory cells in BALF, lung tissue damage and AHR were persistent for 60 days post-RSV infection. Type 2 cytokines and NK cells were significantly increased during the later stage of infection. When NK cells were decreased by the antibodies or resveratrol, type 2 cytokines, the persistent airway inflammation and AHR were all markedly reduced. NK cells can contribute to the RSV-associated persistent airway inflammation and AHR at least partially by promoting type 2 cytokines. Therefore, therapeutic targeting of NK cells may provide a novel approach to alleviating the recurrent wheezing subsequent to RSV infection.
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Affiliation(s)
- Xiaoru Long
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Jun Xie
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Keting Zhao
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Wei Li
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Wei Tang
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Sisi Chen
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Na Zang
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Luo Ren
- Ministry of Education Key Laboratory of Child Development and Disorders; Key Laboratory of Pediatrics in Chongqing, CSTC2009CA5002; Chongqing International Science and Technology Cooperation Center for Child Development and Disorders, Children's Hospital, Chongqing Medical University, Chongqing, 400014, People's Republic of China
| | - Yu Deng
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Xiaohong Xie
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Lijia Wang
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Zhou Fu
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China
| | - Enmei Liu
- Department of Respiratory Medicine, Children's Hospital, Chongqing Medical University, No. 136, Zhongshan 2nd Road, Yuzhong District, Chongqing, 400014, People's Republic of China.
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May RD, Fung M. Strategies targeting the IL-4/IL-13 axes in disease. Cytokine 2016; 75:89-116. [PMID: 26255210 DOI: 10.1016/j.cyto.2015.05.018] [Citation(s) in RCA: 123] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 05/15/2015] [Indexed: 02/07/2023]
Abstract
IL-4 and IL-13 are pleiotropic Th2 cytokines produced by a wide variety of different cell types and responsible for a broad range of biology and functions. Physiologically, Th2 cytokines are known to mediate host defense against parasites but they can also trigger disease if their activities are dysregulated. In this review we discuss the rationale for targeting the IL-4/IL-13 axes in asthma, atopic dermatitis, allergic rhinitis, COPD, cancer, inflammatory bowel disease, autoimmune disease and fibrotic disease as well as evaluating the associated clinical data derived from blocking IL-4, IL-13 or IL-4 and IL-13 together.
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Abstract
Asthma is an immune-mediated disease of the airways characterized by reversible airway obstruction, bronchial eosinophilic inflammation, and airway hyperresponsiveness (AHR). The immune dysregulation in asthma has been attributed to the involvement of diverse immune cells that contribute to the immunopathology of the disease. Natural killer (NK) cells play critical roles in host defense against viruses and various cancers. Accumulating evidence demonstrates additional important roles for these cells in T cell priming, dendritic cell maturation, and the development of inflammation, all of which have the potential to enhance or dampen allergic responses. The ability of NK cells to produce Th2-type cytokines and their pivotal role in combating respiratory infections which cause airway dysfunction in asthmatics further suggest that they may directly contribute to the immunopathogenesis of allergic airway disease. In this review, we examine emerging evidence and discuss the putative roles of NK cells in the sensitization, progression, and resolution of asthma.
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Affiliation(s)
- Clinton B Mathias
- Department of Pharmaceutical and Administrative Sciences, College of Pharmacy, Western New England University, Springfield, MA, 01119, USA,
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Kim N, Kim M, Yun S, Doh J, Greenberg PD, Kim TD, Choi I. MicroRNA-150 regulates the cytotoxicity of natural killers by targeting perforin-1. J Allergy Clin Immunol 2014; 134:195-203. [PMID: 24698324 PMCID: PMC4125537 DOI: 10.1016/j.jaci.2014.02.018] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Revised: 01/15/2014] [Accepted: 02/14/2014] [Indexed: 01/07/2023]
Abstract
BACKGROUND Perforin-1 (Prf1) is the predominant cytolytic protein secreted by natural killer (NK) cells. For a rapid immune response, resting NK cells contain high Prf1 mRNA concentrations while exhibiting minimal cytotoxicity caused by a blockage of Prf1 protein synthesis, implying that an unknown posttranscriptional regulatory mechanism exists. OBJECTIVE We sought to determine whether microRNA-150 (miR-150) posttranscriptionally regulates Prf1 translation in both mouse and human NK cells at rest and at various time points after activation. METHODS Mouse NK cells with a targeted deletion of miR-150 (miR-150(-/-) NK cells), primary human NK cells, and NK92 MI cells were used to investigate the role of miR-150 in NK cells. NK cell cytotoxicity assays and Western blotting proved that activated miR-150(-/-) NK cells expressed upregulated Prf1, augmenting NK cell cytotoxicity. When immunodeficient mice were injected with miR-150(-/-) NK cells, there was a significant reduction in tumor growth and metastasis of B16F10 melanoma. RESULTS We report that miR-150 binds to 3' untranslated regions of mouse and human Prf1, posttranscriptionally downregulating its expression. Mouse wild-type NK cells displayed downregulated miR-150 expression in response to IL-15, which led to corresponding repression and induction of Prf1 during rest and after IL-15 activation, respectively. CONCLUSION Our results indicate that miR-150 is a common posttranscriptional regulator for Prf1 in mouse and human NK cells that represses NK cell lytic activity. Thus the therapeutic control of miR-150 in NK cells could enhance NK cell-based immunotherapy against cancer, providing a better clinical outcome.
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Affiliation(s)
- Nayoung Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Korea
| | - Miju Kim
- School of Interdisciplinary Bioscience and Bioengineering (I-Bio), POSTECH, Pohang, Korea; Department of Mechanical Engineering, POSTECH, Pohang, Korea
| | - Sohyun Yun
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Korea
| | - Junsang Doh
- School of Interdisciplinary Bioscience and Bioengineering (I-Bio), POSTECH, Pohang, Korea; Department of Mechanical Engineering, POSTECH, Pohang, Korea
| | - Philip D Greenberg
- Departments of Immunology and Medicine, University of Washington School of Medicine, and Fred Hutchinson Cancer Research Center, Seattle, Wash
| | - Tae-Don Kim
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Korea; Department of Functional Genomics, University of Science and Technology (UST), KRIBB, Daejeon, Korea.
| | - Inpyo Choi
- Immunotherapy Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), Daejeon, Korea; Department of Functional Genomics, University of Science and Technology (UST), KRIBB, Daejeon, Korea.
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Manners S, Alam R, Schwartz DA, Gorska MM. A mouse model links asthma susceptibility to prenatal exposure to diesel exhaust. J Allergy Clin Immunol 2014; 134:63-72. [PMID: 24365139 PMCID: PMC4065237 DOI: 10.1016/j.jaci.2013.10.047] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Revised: 08/30/2013] [Accepted: 10/14/2013] [Indexed: 01/07/2023]
Abstract
BACKGROUND Most asthma begins in the first years of life. This early onset cannot be attributed merely to genetic factors because the prevalence of asthma is increasing. Epidemiologic studies have indicated roles for prenatal and early childhood exposures, including exposure to diesel exhaust. However, little is known about the mechanisms. This is largely due to a paucity of animal models. OBJECTIVE We aimed to develop a mouse model of asthma susceptibility through prenatal exposure to diesel exhaust. METHODS Pregnant C57BL/6 female mice were given repeated intranasal applications of diesel exhaust particles (DEPs) or PBS. Offspring underwent suboptimal immunization and challenge with ovalbumin (OVA) or received PBS. Pups were examined for features of asthma; lung and liver tissues were analyzed for transcription of DEP-regulated genes. RESULTS Offspring of mice exposed to DEPs were hypersensitive to OVA, as indicated by airway inflammation and hyperresponsiveness, increased serum OVA-specific IgE levels, and increased pulmonary and systemic TH2 and TH17 cytokine levels. These cytokines were primarily produced by natural killer (NK) cells. Antibody-mediated depletion of NK cells prevented airway inflammation. Asthma susceptibility was associated with increased transcription of genes known to be specifically regulated by the aryl hydrocarbon receptor and oxidative stress. Features of asthma were either marginal or absent in OVA-treated pups of PBS-exposed mice. CONCLUSION We created a mouse model that linked maternal exposure to DEPs with asthma susceptibility in offspring. Development of asthma was dependent on NK cells and associated with increased transcription from aryl hydrocarbon receptor- and oxidative stress-regulated genes.
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Affiliation(s)
- Sarah Manners
- Department of Medicine, Division of Allergy and Clinical Immunology, National Jewish Health, Denver, Colo
| | - Rafeul Alam
- Department of Medicine, Division of Allergy and Clinical Immunology, National Jewish Health, Denver, Colo; Department of Medicine, Division of Allergy and Clinical Immunology, University of Colorado Denver, Aurora, Colo
| | - David A Schwartz
- Department of Medicine, Division of Pulmonary Sciences and Critical Care Medicine, University of Colorado Denver, Aurora, Colo
| | - Magdalena M Gorska
- Department of Medicine, Division of Allergy and Clinical Immunology, National Jewish Health, Denver, Colo; Department of Medicine, Division of Allergy and Clinical Immunology, University of Colorado Denver, Aurora, Colo.
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Poggi A, Zocchi MR. NK cell autoreactivity and autoimmune diseases. Front Immunol 2014; 5:27. [PMID: 24550913 PMCID: PMC3912987 DOI: 10.3389/fimmu.2014.00027] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 01/17/2014] [Indexed: 01/14/2023] Open
Abstract
Increasing evidences have pointed out the relevance of natural killer (NK) cells in organ-specific and systemic autoimmune diseases. NK cells bear a plethora of activating and inhibiting receptors that can play a role in regulating reactivity with autologous cells. The activating receptors recognize natural ligands up-regulated on virus-infected or stressed or neoplastic cells. Of note, several autoimmune diseases are thought to be linked to viral infections as one of the first event in inducing autoimmunity. Also, it is conceivable that autoimmunity can be triggered when a dysregulation of innate immunity occurs, activating T and B lymphocytes to react with self-components. This would imply that NK cells can play a regulatory role during adaptive immunity; indeed, innate lymphoid cells (ILCs), comprising the classical CD56+ NK cells, have a role in maintaining or alternating tissue homeostasis secreting protective and/or pro-inflammatory cytokines. In addition, NK cells display activating receptors involved in natural cytotoxicity and the activating isoforms of receptors for HLA class I that can interact with healthy host cells and induce damage without any evidence of viral infection or neoplastic-induced alteration. In this context, the interrelationship among ILC, extracellular-matrix components, and mesenchymal stromal cells can be considered a key point for the control of homeostasis. Herein, we summarize evidences for a role of NK cells in autoimmune diseases and will give a point of view of the interplay between NK cells and self-cells in triggering autoimmunity.
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Affiliation(s)
- Alessandro Poggi
- Molecular Oncology and Angiogenesis Unit, IRCCS AOU San Martino-IST , Genoa , Italy
| | - Maria Raffaella Zocchi
- Division of Immunology, Transplants and Infectious Diseases, Scientific Institute San Raffaele , Milan , Italy
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29
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Deniz G, van de Veen W, Akdis M. Natural killer cells in patients with allergic diseases. J Allergy Clin Immunol 2013; 132:527-535. [PMID: 23993354 DOI: 10.1016/j.jaci.2013.07.030] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2013] [Revised: 07/26/2013] [Accepted: 07/26/2013] [Indexed: 12/21/2022]
Abstract
Natural killer (NK) cells not only exert cytotoxic activity against tumor cells or infected cells but also act to regulate the function of other immune cells through secretion of cytokines and chemokines or cell contact-dependent mechanisms. NK cells are able to polarize in vitro into 2 functional distinct subsets, NK1 or NK2 cells, which are analogous to the T-cell subsets TH1 or TH2. In addition, a regulatory NK cell subset has been described that secretes IL-10, shows antigen-specific T-cell suppression, and suppresses IgE production. Although it has been demonstrated that NK cells play important roles in autoimmunity, cancer, transplantation, and pregnancy, the role of NK cells in allergy has not been extensively discussed. This review aims to discuss our understanding of NK cells and NK cell subsets in allergic inflammation and IgE regulation.
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Affiliation(s)
- Günnur Deniz
- Institute of Experimental Medicine (DETAE), Department of Immunology, Istanbul University, Istanbul, Turkey.
| | - Willem van de Veen
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
| | - Mübeccel Akdis
- Swiss Institute of Allergy and Asthma Research (SIAF), University of Zurich, Davos, Switzerland
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30
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Natural killer cells from patients with chronic rhinosinusitis have impaired effector functions. PLoS One 2013; 8:e77177. [PMID: 24204766 PMCID: PMC3799692 DOI: 10.1371/journal.pone.0077177] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2013] [Accepted: 08/31/2013] [Indexed: 11/21/2022] Open
Abstract
Natural killer (NK) cells are multicompetent lymphocytes of the innate immune system that play a central role in host defense and immune regulation. Although increasing evidence suggests that innate immunity plays a key role in the pathogenesis of chronic rhinosinusitis (CRS), the role of NK cells in CRS has been poorly studied. This study aimed to characterize the peripheral blood NK cells from patients with CRS, and to compare the functions of these cells with those from non-CRS controls. The correlation between NK cell functional activity and prognosis was also assessed. Eighteen CRS patients and 19 healthy non-CRS controls were included. The patients with CRS were classified into two subgroups, namely a treatment-responsive group and recalcitrant group. NK cell degranulation was determined by measuring the cell surface expression of CD107a against 721.221 and K562 cells. Intracytoplasmic cytokine production was determined by flow cytometry. Compared to the controls, the NK cells of CRS group had an impaired ability to degranulate and to produce cytokines such as IFN-γ and TNF-α. The recalcitrant subgroup showed the most severe defects in NK cell effector functions. Moreover, the decreased NK cell functions in patients with CRS were associated with poor prognostic factors such as concomitant asthma and peripheral blood eosinophilia. NK cells, which were originally named for their ability to mediate spontaneous cytotoxicity towards diseased cells including infected cells, may play an important role in regulating the inflammatory process in CRS pathogenesis.
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The management of paediatric allergy: not everybody's cup of tea--10-11th February 2012. Curr Opin Allergy Clin Immunol 2013; 13 Suppl 1:S1-50. [PMID: 23377496 DOI: 10.1097/aci.0b013e32835e8b94] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Karimi K, Forsythe P. Natural killer cells in asthma. Front Immunol 2013; 4:159. [PMID: 23801996 PMCID: PMC3689036 DOI: 10.3389/fimmu.2013.00159] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Accepted: 06/09/2013] [Indexed: 12/23/2022] Open
Abstract
The worldwide prevalence, morbidity, and mortality of asthma have dramatically increased over the last few decades and there is a clear need to identify new effective therapeutic and prophylactic strategies. Despite high numbers of NK cells in the lung and their ability to generate a variety of immunomodulatory mediators, the potential of NK cells as therapeutic targets in allergic airway disease has been largely overlooked. The fact that IgE, acting through FcγRIII, can activate NK cells resulting in cytokine/chemokine production implies that NK cells may contribute to IgE-mediated allergic responses. Indeed, current evidence suggests that NK cells can promote allergic airway responses during sensitization and ongoing inflammation. In animal models, increased NK cells are observed in the lung following antigen challenge and depletion of the cells before immunization inhibits allergic airway inflammation. Moreover, in asthmatics, NK cell phenotype is altered and may contribute to the promotion of a pro-inflammatory Th2-type environment. Conversely, driving NK cells toward an IFN-γ-secreting phenotype can reduce features of the allergic airway response in animal models. However, we have limited knowledge of the signals that drive the development of distinct subsets and functional phenotypes of NK cells in the lung and thus the role and therapeutic potential of NK cells in the allergic airway remains unclear. Here we review the potentially diverse role of NK cells in allergic airway disease, identify gaps in current knowledge, and discuss the potential of modulating NK cell function as a treatment strategy in asthma.
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Affiliation(s)
- Khalil Karimi
- Institut für Experimentelle Immunologie und Hepatologie, Universitätsklinikum Hamburg-Eppendorf , Hamburg , Germany ; Department of Medicine, Brain-Body Institute, McMaster University , Hamilton, ON , Canada
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Abstract
Organs such as the liver, uterus and lung possess hallmark immunotolerant features, making these organs important for sustaining self-homeostasis. These organs contain a relatively large amount of negative regulatory immune cells, which are believed to take part in the regulation of immune responses. Because natural killer cells constitute a large proportion of all lymphocytes in these organs, increasing attention has been given to the roles that these cells play in maintaining immunotolerance. Here, we review the distribution, differentiation, phenotypic features and functional features of natural killer cells in these immunotolerant organs, in addition to the influence of local microenvironments on these cells and how these factors contribute to organ-specific diseases.
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Müller L, Brighton LE, Jaspers I. Ozone exposed epithelial cells modify cocultured natural killer cells. Am J Physiol Lung Cell Mol Physiol 2012; 304:L332-41. [PMID: 23241529 DOI: 10.1152/ajplung.00256.2012] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
Ozone (O3) causes significant adverse health effects worldwide. Nasal epithelial cells (NECs) are among the first sites within the respiratory system to be exposed to inhaled air pollutants. They recruit, activate, and interact with immune cells via soluble mediators and direct cell-cell contacts. Based on our recent observation demonstrating the presence of natural killer (NK) cells in nasal lavages, the goal of this study was to establish a coculture model of NECs and NK cells and examine how exposure to O3 modifies this interaction. Flow cytometry analysis was used to assess immunophenotypes of NK cells cocultured with either air- or O3-exposed NECs. Our data show that coculturing NK cells with O3-exposed NECs decreased intracellular interferon-γ (IFN-γ), enhanced, albeit not statistically significant, IL-4, and increased CD16 expression on NK cells compared with air controls. Additionally, the cytotoxicity potential of NK cells was reduced after coculturing with O3-exposed NECs. To determine whether soluble mediators released by O3-exposed NECs caused this shift, apical and basolateral supernatants of air- and O3-exposed NECs were used to stimulate NK cells. While the conditioned media of O3-exposed NECs alone did not reduce intracellular IFN-γ, O3 enhanced the expression of NK cell ligands ULBP3 and MICA/B on NECs. Blocking ULBP3 and MICA/B reversed the effects of O3-exposed NECs on IFN-γ production in NK cells. Taken together, these data showed that interactions between NECs and NK cells in the context of O3 exposure changes NK cell activity via direct cell-cell interactions and is dependent on ULBP3/MICA/B expressed on NECs.
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Affiliation(s)
- Loretta Müller
- Center for Environmental Medicine, Asthma, and Lung Biology, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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Innate and adaptive immune responses to the major Parietaria allergen Par j 1 in healthy subjects. Immunobiology 2012; 218:995-1004. [PMID: 23332216 DOI: 10.1016/j.imbio.2012.11.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2012] [Revised: 11/16/2012] [Accepted: 11/18/2012] [Indexed: 12/17/2022]
Abstract
In this study we wanted to analyse the pattern of the immune response to the Parietaria major allergen Par j 1 in freshly purified peripheral blood mononuclear cell (PBMC) from healthy subjects. We observed that Par j 1 was capable of inducing IFN-γ production by CD3⁻ and CD16⁺/CD56⁺ cells exclusively in healthy individuals. Furthermore, a multiparametric analysis allowed us a better definition of two IFN-γ-Par j 1 specific populations (IFN-γ(dim) and IFN-γ(high)) characterized by the presence of different proportions of NKT and NK cells. We also identified the concomitant presence of a subset of IL-10⁺ NK cells. Moreover, CFSE staining showed that the Par j 1 preferentially induced the proliferation of CD3⁻/CD56⁺/CD335⁺ cells. Finally, a subset of CD4⁺/CD25⁺/FoxP3⁺/IL-10⁻ T cells was identified. The result of this pilot study suggest that during a tolerogenic response, the major allergen of the Parietaria pollen works as an activator of both the innate and the adaptive human immune system.
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Beneficial effects of sitostanol on the attenuated immune function in asthma patients: results of an in vitro approach. PLoS One 2012; 7:e46895. [PMID: 23091602 PMCID: PMC3473039 DOI: 10.1371/journal.pone.0046895] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2012] [Accepted: 09/10/2012] [Indexed: 12/29/2022] Open
Abstract
Background In vitro and animal studies have suggested that plant sterols and stanols increase cytokine production by T-helper-1 cells. This may be beneficial for patient groups characterized by a T-helper-2 dominant immune response, e.g. asthma patients. (1) to evaluate whether sitostanol induces a T-helper-1 shift in peripheral blood mononuclear cells (PBMCs) from asthma patients, and (2) to unravel the role of regulatory T-cells in this respect. Methodology/Principal Findings PBMCs from 10 asthma patients and 10 healthy subjects were isolated and incubated with 1.2 µM sitostanol, while stimulated with 5 µg/ml PHA. Similar amounts of cholesterol were used to determine whether effects were specific for plant stanols or for sterols in general. Changes in cytokine production were measured using antibody arrays and ELISAs. Changes in regulatory T-cell population size were measured by flow cytometry, using intracellular Foxp3 staining. Sitostanol increased production of IFNγ by 6.5% and IL-2 by 6.0% compared to cholesterol (p<0.01). No changes in IL-4 and IL-13 were found. Interestingly, this effect was only present in PBMCs from asthma patients. The number of Foxp3+ cells tended to increase and their activity, measured by IL-10 production, increased after sitostanol treatment in PBMCs from asthma patients compared to controls by 32.3% (p = 0.077) and 13.3% (p<0.05), respectively. Conclusions/Significance Altogether, the sitostanol-induced Thelper-1 shift in PBMCs from asthma patients and the stimulating effects of sitostanol on Treg cell numbers and activity indicate a possible novel approach for plant stanol ester enriched functional foods in the amelioration of asthmatic symptoms. Functional effects, however, require further evaluation.
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37
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Tian Z, Gershwin ME, Zhang C. Regulatory NK cells in autoimmune disease. J Autoimmun 2012; 39:206-15. [PMID: 22704425 DOI: 10.1016/j.jaut.2012.05.006] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2012] [Accepted: 05/20/2012] [Indexed: 12/26/2022]
Abstract
As major components of innate immunity, NK cells not only exert cell-mediated cytotoxicity against tumor cells or infected cells, but also act to regulate the function of other immune cells by secretion of cytokines and chemokines, thus providing surveillance in early defense against viruses, intracellular bacteria and cancer cells. However, the effector function of NK cells must be exquisitely controlled in order to prevent inadvertent attack against self normal cells. The activity of NK cells is defined by integration of signals coming from inhibitory and activation receptors. Inhibitory receptors not only distinguish healthy from diseased cells by recognize self-MHC class I molecules on cell surfaces with "missing-self" model, but also provide an educational signal that generates functional NK cells. NK cells enrich in immunotolerance organ and recent findings of different regulatory NK cell subsets have indicated the unique role of NK cells in maintenance of homeostasis. Once the self-tolerance is broken, autoimmune response may occur. Although data has demonstrated that NK cells play important role in autoimmune disorders, NK cells seemed to act as a two edged weapon and play opposite roles with both regulatory and inducer activity even in the same disease. The precise role and regulatory mechanisms need to be further determined. In this review, we focus on recent research on the association of NK cells and antoimmune diseases, particularly the genetic correlation, the immune tolerance and misrecognition of NK cells, the regulatory function of NK cells, and their potential role in autoimmunity.
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Affiliation(s)
- Zhigang Tian
- School of Life Sciences, University of Science and Technology of China, Hefei 230027, China.
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38
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Effect of azithromycin on natural killer cell function. Int Immunopharmacol 2012; 13:8-14. [PMID: 22410149 DOI: 10.1016/j.intimp.2012.02.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 02/01/2012] [Accepted: 02/27/2012] [Indexed: 12/16/2022]
Abstract
Azithromycin (AZM), a macrolide antibiotic for treating mycoplasma infections, may exhibit anti-inflammatory activity aside from its antimicrobial effect, providing additional therapeutic benefit. Natural killer (NK) cells, a first-line innate immune defense against microbial invasions, paradoxically exert a detrimental effect in protecting mycoplasma infection. Little was known regarding the effect of AZM on NK cells. In the present study, we investigated the ability of azithromycin to influence natural killer (NK) cell function with regard to activation, apoptosis and cytotoxic function. AZM had little effect on NK receptor expression and cytotoxic function of NK-92 cells. However, AZM did show a dose-dependent suppression on IL-15-induced CD69 expression of primary NK cells. AZM inhibited the cytotoxicity against K562 cells of resting and IL-15 activated primary NK cells possibly through down-regulation of perforin expression, especially on CD16(+)CD56(+) NK subsets. AZM exerted a dose-dependent inhibition of IFN-gamma and TNF-alpha production from NK-92 cells, but did not affect the cytokine production of IL-15 activated primary NK cells. Taken together, AZM down-regulates NK cytotoxicity and cytokine production and may provide therapeutic benefits aside from its antimicrobial activity.
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Baïz N, Slama R, Béné MC, Charles MA, Kolopp-Sarda MN, Magnan A, Thiebaugeorges O, Faure G, Annesi-Maesano I. Maternal exposure to air pollution before and during pregnancy related to changes in newborn's cord blood lymphocyte subpopulations. The EDEN study cohort. BMC Pregnancy Childbirth 2011; 11:87. [PMID: 22047167 PMCID: PMC3227583 DOI: 10.1186/1471-2393-11-87] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Accepted: 11/02/2011] [Indexed: 12/14/2022] Open
Abstract
Background Toxicants can cross the placenta and expose the developing fetus to chemical contamination leading to possible adverse health effects, by potentially inducing alterations in immune competence. Our aim was to investigate the impacts of maternal exposure to air pollution before and during pregnancy on newborn's immune system. Methods Exposure to background particulate matter less than 10 μm in diameter (PM10) and nitrogen dioxide (NO2) was assessed in 370 women three months before and during pregnancy using monitoring stations. Personal exposure to four volatile organic compounds (VOCs) was measured in a subsample of 56 non-smoking women with a diffusive air sampler during the second trimester of pregnancy. Cord blood was analyzed at birth by multi-parameter flow cytometry to determine lymphocyte subsets. Results Among other immunophenotypic changes in cord blood, decreases in the CD4+CD25+ T-cell percentage of 0.82% (p = 0.01), 0.71% (p = 0.04), 0.88% (p = 0.02), and 0.59% (p = 0.04) for a 10 μg/m3 increase in PM10 levels three months before and during the first, second and third trimester of pregnancy, respectively, were observed after adjusting for confounders. A similar decrease in CD4+CD25+ T-cell percentage was observed in association with personal exposure to benzene. A similar trend was observed between NO2 exposure and CD4+CD25+ T-cell percentage; however the association was stronger between NO2 exposure and an increased percentage of CD8+ T-cells. Conclusions These data suggest that maternal exposure to air pollution before and during pregnancy may alter the immune competence in offspring thus increasing the child's risk of developing health conditions later in life, including asthma and allergies.
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Affiliation(s)
- Nour Baïz
- Inserm, Institut national de la santé et de la recherche médicale, Epidemiology of Allergic and Respiratory (EPAR) Department, UMR-S707, Paris, France.
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Orihara K, Dil N, Anaparti V, Moqbel R. What's new in asthma pathophysiology and immunopathology? Expert Rev Respir Med 2011; 4:605-29. [PMID: 20923340 DOI: 10.1586/ers.10.57] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
Research on asthma pathophysiology over the past decade has expanded the complex repertoire involved in the pathophysiology of asthma to include inflammatory, immune and structural cells, as well as a wide range of mediators. Studies have identified a role for connective and other mesenchymal tissues involved in airway remodeling. Recent findings have implicated the innate immune response in asthma and have revealed interesting patterns of interaction between the innate and adaptive immune response and the associated complex chronic inflammatory reaction. New immune cell populations have also been added to this repertoire, including Tregs, natural killer T cells and Th17 cells. The role of the eosinophil, a prominent pathological feature in most asthma phenotypes, has also been expanding to include roles such as tissue modifiers and immune regulators via a number of fascinating and hitherto unexplored mechanistic pathways. In addition, new and significant roles have been proposed for airway smooth muscle cells, fibroblasts, epithelial and endothelial cells. Tissue remodeling is now considered an integral element of asthma pathophysiology. Finally, an intricate network of mediators, released from both immune and inflammatory cells, including thymus stromal lymphopoietin and matrix metalloproteinases, have added to the complex milieu of asthma immunity and inflammation. These findings have implications for therapy and the search for novel strategies towards better disease management. Sadly, and perhaps due to the complex nature of asthma, advances in therapeutic discoveries and developments have been limited. Thus, understanding the precise roles played by the numerous dramatis personae in this odyssey, both individually and collectively within the context of asthma pathophysiology, continues to pose new challenges. It is clear that the next stage in this saga is to embark on studies that transcend reductionist approaches to involve system analysis of the complex and multiple variables involved in asthma, including the need to narrow down the phenotypes of this condition based on careful analysis of the organs (lung and airways), cells, mediators and other factors involved in bronchial asthma.
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Affiliation(s)
- Kanami Orihara
- Department of Immunology, University of Manitoba, Winnipeg, Canada
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Ple C, Barrier M, Amniai L, Marquillies P, Bertout J, Tsicopoulos A, Walzer T, Lassalle P, Duez C. Natural killer cells accumulate in lung-draining lymph nodes and regulate airway eosinophilia in a murine model of asthma. Scand J Immunol 2010; 72:118-27. [PMID: 20618770 DOI: 10.1111/j.1365-3083.2010.02419.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Increasing evidence suggests a key role for the innate immune system in asthma development. Although the role of Natural Killer (NK) cells in allergic asthma is poorly known, modifications of the blood NK cell populations have been found in asthmatic and/or allergic patients. Their repartition and activation status in the inflammatory (lungs) and the regulatory (draining lymph nodes) sites of the allergic reaction is unknown. The aim of our study was to monitor NK cell migration pattern and activation status and to investigate the consequences of NK cell depletion during allergic airway reaction in a mouse model. Ovalbumin sensitization and challenges of BALB/cByJ mice had no effect on the total number of lung NK cells but significantly decreased the number of most mature NK cells and increased the level of the activation marker CD86. In the lung-draining mediastinal lymph nodes, ovalbumin sensitization and challenges led to increased number of NK cells, and more precisely, immature NK cells and increased expression of CD86. Ovalbumin-sensitized mice also exhibited increased percentage of proliferating NK cells in lung-draining mediastinal lymph nodes. Anti-ASGM1 antibody treatment depleted most NK cells and decreased bronchoalveolar lavage eosinophilia but did not modify airway responsiveness. Altogether, our study shows that pulmonary allergic sensitization induces modification in the NK cell compartment at the inflammatory and regulatory sites and suggests that NK cells may participate in the regulation of the asthmatic response and, more particularly, to the allergic airway eosinophilia.
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Affiliation(s)
- C Ple
- INSERM, Institut National de la Santé et de la Recherche Médicale U774, Lille, France
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Natural killer cells control a T-helper 1 response in patients with Behçet's disease. Arthritis Res Ther 2010; 12:R80. [PMID: 20459787 PMCID: PMC2911862 DOI: 10.1186/ar3005] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Revised: 12/22/2009] [Accepted: 05/11/2010] [Indexed: 01/19/2023] Open
Abstract
Introduction Behçet's disease (BD) is a multisystem inflammatory disorder, in which a T-helper 1 (Th1)-polarized immune response plays a major role in the pathogenic process. We evaluated the regulatory role of natural killer (NK) cells in Th1-biased immune responses in patients with BD. Methods We studied 47 patients with BD, including 10 with active disease (aBD) and 37 with inactive disease (iBD), and 29 healthy controls. The activation status and cytotoxic activity of NK cells were examined by flow cytometry. The levels of mRNAs for immune modulatory and cytotoxic molecules in NK cells were determined by quantitative PCR. The IL-12 signal strength in NK cells was determined by assessing the phosphorylation state of its downstream component, signal transducer and activator of transduction 4, by immunoblotting. Finally, NK cells' ability to modulate the Th1 response was evaluated by co-culturing NK cells and T cells without cell contact. Results CD69+-activated NK cells were significantly increased in aBD compared with iBD or control samples, although their cytotoxic activities were similar. The iBD NK cells showed downregulated IL-12 receptor β2 mRNA levels compared with aBD or control NK cells. The increased IL-13 expression was detected in a subset of BD patients: most of them had iBD. The IL-13 expression level in iBD patients was significantly higher than the level in controls, but was not statistically different compared with the level in aBD patients. The gene expression profile in iBD patients was consistent with the NK type 2 phenotype, and the shift to NK type 2 was associated with disease remission. NK cells from iBD patients showed impaired IL-12-induced signal transducer and activator of transduction 4 phosphorylation. Finally, iBD, but not control, NK cells suppressed IFNγ expression by aBD-derived CD4+ T cells in vitro. Conclusions NK cells may control disease flare/remission in BD patients via NK type 2-mediated modulation of the Th1 response.
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Abstract
The lungs are a major site of entry of pathogens into the body and thus require rapid and effective innate responses to prevent pathogens establishing infection and to limit their spread. Additionally, the immune response in the lung must be tightly regulated such that pathogens are cleared, but immunopathology and chronic inflammation are prevented. In this review, I consider the role of natural killer (NK) cells in pulmonary infection and inflammation, specifically their contributions to influenza, tuberculosis, asthma and chronic obstructive pulmonary disease (COPD), which are major causes of morbidity and mortality world-wide. Despite evidence of the importance of NK cells in these diseases, there are still major gaps in our understanding of how their function is regulated in this unique tissue environment. Understanding how different beneficial and detrimental effector functions of NK cells are triggered will be crucial if NK cells are to be exploited therapeutically in respiratory disease.
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Affiliation(s)
- Fiona J Culley
- Respiratory Medicine, National Heart and Lung Institute, Faculty of Medicine, Imperial College London, London W21PG, UK.
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Abstract
BACKGROUND Eosinophilic oesophagitis (EO) is a chronic inflammatory disease of the oesophagus, with an emergent character, defined by the presence of a dense infiltrate by eosinophilic leukocytes restricted to the mucosa of this organ after excluding gastro-oesophageal acid reflux. It is manifested by chronic and/or recurrent dysphagia and episodes of oesophageal alimentary impaction, with great variation in terms of intensity, frequency, and duration of the attacks. METHODS An Internet-based search was performed for the most recent articles with relevant information concerning immunopathological mechanisms involved in EO. RESULTS Bibliographical data allow us to define that EO is related to an allergic or hypersensitivity-induced reaction after exposure to foods or inhalants, with increased prevalence of sensitisation to these allergens. Data published up to now suggest a cellular hypersensitivity reaction rather than a humoral one in the physiopathology of EO. In this disease, sensitised T-lymphocytes mediate a Th2 type response, releasing cytokines such as IL-5, with a possible Th1 component that requires further investigation. The function of the abundant CD8+ T-lymphocytes present in the oesophageal epithelium has yet to be explained. Mast cells also participate in epithelial inflammatory infiltrate in EO, and it is still unknown if its activation, mainly through IgE, contributes to the immunopathology of the disease even though EO rarely manifests immediate hypersensitivity reactions. IL-5 and different forms of eotaxins perform an important active role in the recruitment of eosinophils to the oesophagus. CONCLUSIONS EO is an immunologically complex and little studied entity that is associated with other allergic diseases and in which different effector cells participate, determining an immunological response of cellular rather than a humoral hypersensitivity reaction. The data available point out that EO is a disorder of the Th2 retarded immune response, in which the triggering factor might not be IgE. Although the final inflammatory phenomena observed in EO are common for the different patients, the cascade of inflammatory mediators that lead to them might not be identical in all cases, and the morphological and functional disorders observed in EO would represent the final convergence of different activation forms of the mechanisms of inflammation.
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Affiliation(s)
- A J Lucendo
- Department of Gastroenterology. Complejo Hospitalario La Mancha Centro. Alcázar de San Juan-Tomelloso. Ciudad Real. Spain
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Iannello A, Debbeche O, Samarani S, Ahmad A. Antiviral NK cell responses in HIV infection: I. NK cell receptor genes as determinants of HIV resistance and progression to AIDS. J Leukoc Biol 2008; 84:1-26. [PMID: 18388298 DOI: 10.1189/jlb.0907650] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
NK cells play an important role in controlling viral infections. They can kill virus-infected cells directly as well as indirectly via antibody-dependent, cell-mediated cytotoxicity. They need no prior sensitization and expansion for this killing. NK cells are also considered as important regulators of antiviral immune responses. They do so by secreting a multitude of soluble mediators and by directly interacting with other immune cells, e.g., dendritic cells. NK cells do not possess a single well-defined receptor to recognize antigens on target cells. Instead, they express an array of inhibitory and activating receptors and coreceptors, which bind to their cognate ligands expressed on the surface of target cells. These ligands include classical and nonclassical MHC class I antigens, MHC-like proteins, and a variety of other self- and virus-derived molecules. They may be expressed constitutively and/or de novo on the surface of virus-infected cells. NK cell receptors (NKRs) of the killer-cell Ig-like receptor (KIR) family, like their MHC class I ligands, are highly polymorphic. Several recent studies suggest that epistatic interactions between certain KIR and MHC class I genes may determine innate resistance of the host to viral infections, including HIV. In the first part of this review article, we provide an overview of the current state of knowledge of NK cell immunobiology and describe how NKR genes, alone and in combination with HLA genes, may determine genetic resistance/susceptibilty to HIV infection and the development of AIDS in humans.
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Affiliation(s)
- Alexandre Iannello
- Laboratory of Innate Immunity, Center of Research Ste Justine Hospital, 3175 Côte Ste-Catherine, Montreal, Qc, H3T 1C5, Canada
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Iannello A, Debbeche O, Samarani S, Ahmad A. Antiviral NK cell responses in HIV infection: II. viral strategies for evasion and lessons for immunotherapy and vaccination. J Leukoc Biol 2008; 84:27-49. [PMID: 18388299 DOI: 10.1189/jlb.0907649] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
As is the case in other viral infections, humans respond to HIV infection by activating their NK cells. However, the virus uses several strategies to neutralize and evade the host's NK cell responses. Consequently, it is not surprising that NK cell functions become compromised in HIV-infected individuals in early stages of the infection. The compromised NK cell functions also adversely affect several aspects of the host's antiviral adaptive immune responses. Researchers have made significant progress in understanding how HIV counters NK cell responses of the host. This knowledge has opened new avenues for immunotherapy and vaccination against this infection. In the first part of this review article, we gave an overview of our current knowledge of NK cell biology and discussed how the genes encoding NK cell receptors and their ligands determine innate genetic resistance/susceptibilty of humans against HIV infections and AIDS. In this second part, we discuss NK cell responses, viral strategies to counter these responses, and finally, their implications for anti-HIV immunotherapy and vaccination.
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Affiliation(s)
- Alexandre Iannello
- Laboratory of Innate Immunity, Center of Research Ste Justine Hospital, 3175 Côte Ste-Catherine, Montreal, Qc, H3T 1C5, Canada
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Caramori G, Groneberg D, Ito K, Casolari P, Adcock IM, Papi A. New drugs targeting Th2 lymphocytes in asthma. J Occup Med Toxicol 2008; 3 Suppl 1:S6. [PMID: 18315837 PMCID: PMC2259400 DOI: 10.1186/1745-6673-3-s1-s6] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Asthma represents a profound worldwide public health problem. The most effective anti-asthmatic drugs currently available include inhaled beta2-agonists and glucocorticoids and control asthma in about 90-95% of patients. The current asthma therapies are not cures and symptoms return soon after treatment is stopped even after long term therapy. Although glucocorticoids are highly effective in controlling the inflammatory process in asthma, they appear to have little effect on the lower airway remodelling processes that appear to play a role in the pathophysiology of asthma at currently prescribed doses. The development of novel drugs may allow resolution of these changes. In addition, severe glucocorticoid-dependent and resistant asthma presents a great clinical burden and reducing the side-effects of glucocorticoids using novel steroid-sparing agents is needed. Furthermore, the mechanisms involved in the persistence of inflammation are poorly understood and the reasons why some patients have severe life threatening asthma and others have very mild disease are still unknown. Drug development for asthma has been directed at improving currently available drugs and findings new compounds that usually target the Th2-driven airway inflammatory response. Considering the apparently central role of T lymphocytes in the pathogenesis of asthma, drugs targeting disease-inducing Th2 cells are promising therapeutic strategies. However, although animal models of asthma suggest that this is feasible, the translation of these types of studies for the treatment of human asthma remains poor due to the limitations of the models currently used. The myriad of new compounds that are in development directed to modulate Th2 cells recruitment and/or activation will clarify in the near future the relative importance of these cells and their mediators in the complex interactions with the other pro-inflammatory/anti-inflammatory cells and mediators responsible of the different asthmatic phenotypes. Some of these new Th2-oriented strategies may in the future not only control symptoms and modify the natural course of asthma, but also potentially prevent or cure the disease.
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Affiliation(s)
- Gaetano Caramori
- Dipartimento di Medicina Clinica e Sperimentale, Centro di Ricerca su Asma e BPCO, Università di Ferrara, Ferrara, Italy
| | - David Groneberg
- Institute of Occupational Medicine, Charité- Universitätsmedizin Berlin, Free University and Humboldt University, Berlin, Germany
| | - Kazuhiro Ito
- Airway Disease Section, National Heart and Lung Institute, Imperial College of London, London, UK
| | - Paolo Casolari
- Dipartimento di Medicina Clinica e Sperimentale, Centro di Ricerca su Asma e BPCO, Università di Ferrara, Ferrara, Italy
| | - Ian M Adcock
- Airway Disease Section, National Heart and Lung Institute, Imperial College of London, London, UK
| | - Alberto Papi
- Dipartimento di Medicina Clinica e Sperimentale, Centro di Ricerca su Asma e BPCO, Università di Ferrara, Ferrara, Italy
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Scordamaglia F, Balsamo M, Scordamaglia A, Moretta A, Mingari MC, Canonica GW, Moretta L, Vitale M. Perturbations of natural killer cell regulatory functions in respiratory allergic diseases. J Allergy Clin Immunol 2007; 121:479-85. [PMID: 18061653 DOI: 10.1016/j.jaci.2007.09.047] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2007] [Revised: 08/20/2007] [Accepted: 09/27/2007] [Indexed: 01/21/2023]
Abstract
BACKGROUND Allergic diseases are characterized by abnormal responses to allergens favored by an inappropriate regulation of the T(H)1-T(H)2 polarization. Natural killer (NK) cells give rise to a complex NK/dendritic cell (DC) cross-talk that would help T(H)1 responses. OBJECTIVE By analyzing peripheral blood NK cells from 12 patients with either allergic rhinitis or rhinitis and intermittent asthma, we evaluated whether these cells were impaired in their ability to interact with DCs. METHODS Different circulating NK cell subsets were analyzed by flow cytofluorimetry. Mixed NK/DC cultures were performed to assess the reciprocal functional interactions. NK cells were analyzed for their ability to induce DC maturation and cytokine production, and to kill immature DCs. In addition, DCs were assessed for their ability to induce cytokine production by NK cells. RESULTS We first analyzed the CD56++CD16+/- cells, a subset of circulating NK cells that is able to respond to DCs by proliferating and producing IFN-gamma. Our analysis revealed that this NK cell subpopulation was significantly reduced in most patients. This was reflected by reduced NK cell-mediated IFN-gamma production in response to DCs. Also, the capability of promoting DC maturation and/or killing immature DCs, a function sustained by CD56+CD16+ NK cells, was reduced in most patients. CONCLUSIONS We suggest that allergic diseases are accompanied by a partial impairment of the NK cell capability of promoting and maintaining appropriate T(H)1 responses.
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Affiliation(s)
- Francesca Scordamaglia
- Clinica Malattie dell'Apparato Respiratorio e Allergologia, Dipartimento di Medicina Interna, Università di Genova, Genoa, Italy
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Bullock JZ, Villanueva JM, Blanchard C, Filipovich AH, Putnam PE, Collins MH, Risma KA, Akers RM, Kirby CL, Buckmeier BK, Assa'ad AH, Hogan SP, Rothenberg ME. Interplay of adaptive th2 immunity with eotaxin-3/c-C chemokine receptor 3 in eosinophilic esophagitis. J Pediatr Gastroenterol Nutr 2007; 45:22-31. [PMID: 17592361 DOI: 10.1097/mpg.0b013e318043c097] [Citation(s) in RCA: 94] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Pediatric eosinophilic esophagitis (EE) is a recently described disorder associated with atopy. Although studies of esophageal tissue suggest that Th2 cytokines and eotaxin-3 may be crucial in disease pathogenesis, little is known about the systemic immunological phenotypes of children with EE. OBJECTIVES To define the phenotypes of peripheral blood eosinophils and lymphocytes in EE and to examine for correlations between these parameters and tissue eosinophil numbers and disease severity. PATIENTS AND METHODS Blood was collected from children with EE, atopic control children without EE, and nonatopic control children without EE. Flow cytometry was used to measure eosinophil expression of chemokine receptor 3 (CCR3) and interleukin-5 receptor-alpha (IL-5Ralpha), and intracellular lymphocyte expression of IL-4, IL-5, IL-13, interferon-gamma, and tumor necrosis factor-alpha. Eosinophil numbers and eotaxin-3 mRNA levels were quantitated in esophageal biopsy specimens. RESULTS Compared with nonatopic control children, EE patients with active disease had increased peripheral blood eosinophil percentages, mean channel of fluorescence (MCF) of CCR3 on eosinophils, and percentage of CD4+ T cells expressing IL-5. Notably, these parameters positively correlated with esophageal eosinophil numbers. Eotaxin-3 tissue expression positively correlated with esophageal eosinophil numbers and peripheral blood eosinophil CCR3 MCF. The percentage of peripheral blood eosinophils, eosinophil CCR3 MCF, and CD4+ T cell expression of IL-5 were lower in EE patients in disease remission than in patients with active disease. CONCLUSIONS Collectively, these studies demonstrate cooperation between systemic CD4+ Th2-cell-mediated immunity and an enhanced eosinophil-CCR3/eotaxin-3 pathway in EE pathogenesis. Furthermore, the imbalanced Th2 immunity and increased CCR3 expression are reversible with disease remission.
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Affiliation(s)
- Jennifer Z Bullock
- Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Department of Pediatrics, University of Cincinnati College of Medicine, Cincinnati, OH 45229-3039, USA
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