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Chen Z, Zhang Y, Wu J, Xu J, Hu Z, Fan XY. A multistage protein subunit vaccine as BCG-booster confers protection against Mycobacterium tuberculosis infection in murine models. Int Immunopharmacol 2024; 139:112811. [PMID: 39068754 DOI: 10.1016/j.intimp.2024.112811] [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: 04/21/2024] [Revised: 07/10/2024] [Accepted: 07/24/2024] [Indexed: 07/30/2024]
Abstract
The eradication of tuberculosis remains a global challenge. Despite being the only licensed vaccine, Bacillus Calmette-Guérin (BCG) confers limited protective efficacy in adults and individuals with latent tuberculosis infections (LTBI). There is an urgent need to develop novel vaccines that can enhance the protective effect of BCG. Protein subunit vaccines have garnered significant research interest due to their safety and plasticity. Based on previous studies, we selected three antigens associated with LTBI (Rv2028c, Rv2029c, Rv3126c) and fused them with an immunodominant antigen Ag85A, resulting in the construction of a multistage protein subunit vaccine named A986. We evaluated the protective effect of recombinant protein A986 adjuvanted with MPL/QS21 as a booster vaccine for BCG against Mycobacterium tuberculosis (Mtb) infection in mice. The A986 + MPL/QS21 induced the secretion of antigen-specific Th1 (IL-2+, IFN-γ+ and TNF-α+) and Th17 (IL-17A+) cytokines in CD4+ and CD8+ T cells within the lung and spleen of mice, while also increased the frequency of central memory and effector memory T cells. Additionally, it also induced the enhanced production of IgG antibodies. Compared to BCG alone, A986 + MPL/QS21 boosting significantly augmented the proliferation of antigen-specific multifunctional T cells and effectively reduced bacterial load in infected mice. Taken together, A986 + MPL/QS21 formulation induced robust antigen-specific immune responses and provided enhanced protection against Mtb infection as a booster of BCG vaccine.
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Affiliation(s)
- Zhenyan Chen
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China; National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital & The Second Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518112, Guangdong Province, China
| | - Ying Zhang
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China
| | - Juan Wu
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China
| | - Jinchuan Xu
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China
| | - Zhidong Hu
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China.
| | - Xiao-Yong Fan
- Shanghai Public Health Clinical Center & Shanghai Institute of Infectious Diseases and Biosecurity, Fudan University, Shanghai 201508, China; National Clinical Research Center for Infectious Disease, Shenzhen Third People's Hospital & The Second Affiliated Hospital, Southern University of Science and Technology, Shenzhen 518112, Guangdong Province, China.
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2
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Fowler EA, Farias Amorim C, Mostacada K, Yan A, Amorim Sacramento L, Stanco RA, Hales ED, Varkey A, Zong W, Wu GD, de Oliveira CI, Collins PL, Novais FO. Neutrophil-mediated hypoxia drives pathogenic CD8+ T cell responses in cutaneous leishmaniasis. J Clin Invest 2024; 134:e177992. [PMID: 38833303 PMCID: PMC11245163 DOI: 10.1172/jci177992] [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: 11/27/2023] [Accepted: 05/17/2024] [Indexed: 06/06/2024] Open
Abstract
Cutaneous leishmaniasis caused by Leishmania parasites exhibits a wide range of clinical manifestations. Although parasites influence disease severity, cytolytic CD8+ T cell responses mediate disease. Although these responses originate in the lymph node, we found that expression of the cytolytic effector molecule granzyme B was restricted to lesional CD8+ T cells in Leishmania-infected mice, suggesting that local cues within inflamed skin induced cytolytic function. Expression of Blimp-1 (Prdm1), a transcription factor necessary for cytolytic CD8+ T cell differentiation, was driven by hypoxia within the inflamed skin. Hypoxia was further enhanced by the recruitment of neutrophils that consumed oxygen to produce ROS and ultimately increased the hypoxic state and granzyme B expression in CD8+ T cells. Importantly, lesions from patients with cutaneous leishmaniasis exhibited hypoxia transcription signatures that correlated with the presence of neutrophils. Thus, targeting hypoxia-driven signals that support local differentiation of cytolytic CD8+ T cells may improve the prognosis for patients with cutaneous leishmaniasis, as well as for other inflammatory skin diseases in which cytolytic CD8+ T cells contribute to pathogenesis.
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Affiliation(s)
- Erin A. Fowler
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | | | - Klauss Mostacada
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Allison Yan
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | | | - Rae A. Stanco
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Emily D.S. Hales
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Aditi Varkey
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Wenjing Zong
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Gary D. Wu
- Division of Gastroenterology and Hepatology, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Camila I. de Oliveira
- Instituto Gonçalo Moniz, FIOCRUZ, Salvador, Brazil
- Instituto Nacional de Ciência e Tecnologia em Doenças Tropicais, Salvador, Brazil
| | - Patrick L. Collins
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, Ohio, USA
| | - Fernanda O. Novais
- Department of Microbial Infection and Immunity, College of Medicine, The Ohio State University, Columbus, Ohio, USA
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3
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Fowler EA, Amorim CF, Mostacada K, Yan A, Sacramento LA, Stanco RA, Hales EDS, Varkey A, Zong W, Wu GD, de Oliveira CI, Collins PL, Novais FO. Pathogenic CD8 T cell responses are driven by neutrophil-mediated hypoxia in cutaneous leishmaniasis. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.10.18.562926. [PMID: 37904953 PMCID: PMC10614852 DOI: 10.1101/2023.10.18.562926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/01/2023]
Abstract
Cutaneous leishmaniasis caused by Leishmania parasites exhibits a wide range of clinical manifestations. Although parasites influence disease severity, cytolytic CD8 T cell responses mediate disease. While these responses originate in the lymph node, we find that expression of the cytolytic effector molecule granzyme B is restricted to lesional CD8 T cells in Leishmania - infected mice, suggesting that local cues within inflamed skin induce cytolytic function. Expression of Blimp-1 ( Prdm1 ), a transcription factor necessary for cytolytic CD8 T cell differentiation, is driven by hypoxia within the inflamed skin. Hypoxia is further enhanced by the recruitment of neutrophils that consume oxygen to produce reactive oxygen species, ultimately increasing granzyme B expression in CD8 T cells. Importantly, lesions from cutaneous leishmaniasis patients exhibit hypoxia transcription signatures that correlate with the presence of neutrophils. Thus, targeting hypoxia-driven signals that support local differentiation of cytolytic CD8 T cells may improve the prognosis for patients with cutaneous leishmaniasis, as well as other inflammatory skin diseases where cytolytic CD8 T cells contribute to pathogenesis.
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4
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Sabatel C, Bureau F. The innate immune brakes of the lung. Front Immunol 2023; 14:1111298. [PMID: 36776895 PMCID: PMC9915150 DOI: 10.3389/fimmu.2023.1111298] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 01/02/2023] [Indexed: 01/29/2023] Open
Abstract
Respiratory mucosal surfaces are continuously exposed to not only innocuous non-self antigens but also pathogen-associated molecular patterns (PAMPs) originating from environmental or symbiotic microbes. According to either "self/non-self" or "danger" models, this should systematically result in homeostasis breakdown and the development of immune responses directed to inhaled harmless antigens, such as T helper type (Th)2-mediated asthmatic reactions, which is fortunately not the case in most people. This discrepancy implies the existence, in the lung, of regulatory mechanisms that tightly control immune homeostasis. Although such mechanisms have been poorly investigated in comparison to the ones that trigger immune responses, a better understanding of them could be useful in the development of new therapeutic strategies against lung diseases (e.g., asthma). Here, we review current knowledge on innate immune cells that prevent the development of aberrant immune responses in the lung, thereby contributing to mucosal homeostasis.
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Affiliation(s)
- Catherine Sabatel
- Laboratory of Cellular and Molecular Immunology, GIGA-Research, University of Liège, Liège, Belgium,Faculty of Veterinary Medicine, University of Liège, Liège, Belgium,*Correspondence: Catherine Sabatel,
| | - Fabrice Bureau
- Laboratory of Cellular and Molecular Immunology, GIGA-Research, University of Liège, Liège, Belgium,Faculty of Veterinary Medicine, University of Liège, Liège, Belgium
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5
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The Potential Importance of CXCL1 in the Physiological State and in Noncancer Diseases of the Cardiovascular System, Respiratory System and Skin. Int J Mol Sci 2022; 24:ijms24010205. [PMID: 36613652 PMCID: PMC9820720 DOI: 10.3390/ijms24010205] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 12/11/2022] [Accepted: 12/12/2022] [Indexed: 12/24/2022] Open
Abstract
In this paper, we present a literature review of the role of CXC motif chemokine ligand 1 (CXCL1) in physiology, and in selected major non-cancer diseases of the cardiovascular system, respiratory system and skin. CXCL1, a cytokine belonging to the CXC sub-family of chemokines with CXC motif chemokine receptor 2 (CXCR2) as its main receptor, causes the migration and infiltration of neutrophils to the sites of high expression. This implicates CXCL1 in many adverse conditions associated with inflammation and the accumulation of neutrophils. The aim of this study was to describe the significance of CXCL1 in selected diseases of the cardiovascular system (atherosclerosis, atrial fibrillation, chronic ischemic heart disease, hypertension, sepsis including sepsis-associated encephalopathy and sepsis-associated acute kidney injury), the respiratory system (asthma, chronic obstructive pulmonary disease (COPD), chronic rhinosinusitis, coronavirus disease 2019 (COVID-19), influenza, lung transplantation and ischemic-reperfusion injury and tuberculosis) and the skin (wound healing, psoriasis, sunburn and xeroderma pigmentosum). Additionally, the significance of CXCL1 is described in vascular physiology, such as the effects of CXCL1 on angiogenesis and arteriogenesis.
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6
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Koshkin IN, Vlasenko VS, Pleshakova VI, Alkhimova LE, Elyshev AV, Kulakov IV. Morphology of Lymphoid Tissue in the Lungs of Guinea Pigs Infected with Mycobacterium bovis against the Background of Vaccine Immunity and the Action of Betulin and Its Derivatives. Vaccines (Basel) 2022; 10:vaccines10122084. [PMID: 36560494 PMCID: PMC9784198 DOI: 10.3390/vaccines10122084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 11/26/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022] Open
Abstract
Tuberculosis caused by Mycobacterium bovis is a serious problem for animal and human health worldwide. A promising concept for the design of anti-tuberculosis drugs is the conjugation of an immunogenic fraction isolated from bacterial vaccines with a stimulating component. Taking this principle as a basis, conjugates based on BCG antigens with betulin and its derivatives (betulonic and betulinic acids) were designed. The aim of this research was to study the morphological changes in the lymphoid tissue associated with the bronchial mucosa lungs (BALT) in guinea pigs sensitized with experimental conjugates using a model of experimental tuberculosis. The results showed a significant decrease in the BALT response, expressed by a decrease in the diameter of lymphatic follicles and a decrease in their activity when exposed to conjugates based on BCG antigens with betulin and, especially, with betulonic acid, with a visually greater number of plasma cells observed in the lung tissues of guinea pigs of these groups. The absence of tuberculous foci and low BALT activity in the lungs of animals treated with betulin and betulonic acid are probably associated with the activation of humoral immunity under the action of these conjugates.
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Affiliation(s)
- Ivan N. Koshkin
- The Faculty of Veterinary Medicine, Omsk State Agrarian University Named after P.A. Stolypin, 2 Institutskaya Ploshchad, 644008 Omsk, Russia
| | - Vasily S. Vlasenko
- Omsk Agrarian Scientific Center, 26 Koroleva Ave., 644012 Omsk, Russia
- Correspondence: (V.S.V.); (I.V.K.)
| | - Valentina I. Pleshakova
- The Faculty of Veterinary Medicine, Omsk State Agrarian University Named after P.A. Stolypin, 2 Institutskaya Ploshchad, 644008 Omsk, Russia
| | - Larisa E. Alkhimova
- Center of Nature-Inspired Engineering, University of Tyumen, 15a Perekopskaya St., 625003 Tyumen, Russia
| | - Andrey V. Elyshev
- Center of Nature-Inspired Engineering, University of Tyumen, 15a Perekopskaya St., 625003 Tyumen, Russia
| | - Ivan V. Kulakov
- Center of Nature-Inspired Engineering, University of Tyumen, 15a Perekopskaya St., 625003 Tyumen, Russia
- Correspondence: (V.S.V.); (I.V.K.)
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7
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Role of Neutrophils in Cardiac Injury and Repair Following Myocardial Infarction. Cells 2021; 10:cells10071676. [PMID: 34359844 PMCID: PMC8305164 DOI: 10.3390/cells10071676] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 06/28/2021] [Accepted: 06/29/2021] [Indexed: 12/26/2022] Open
Abstract
Neutrophils are first-line responders of the innate immune system. Following myocardial infarction (MI), neutrophils are quickly recruited to the ischemic region, where they initiate the inflammatory response, aiming at cleaning up dead cell debris. However, excessive accumulation and/or delayed removal of neutrophils are deleterious. Neutrophils can promote myocardial injury by releasing reactive oxygen species, granular components, and pro-inflammatory mediators. More recent studies have revealed that neutrophils are able to form extracellular traps (NETs) and produce extracellular vesicles (EVs) to aggravate inflammation and cardiac injury. On the contrary, there is growing evidence showing that neutrophils also exert anti-inflammatory, pro-angiogenic, and pro-reparative effects, thus facilitating inflammation resolution and cardiac repair. In this review, we summarize the current knowledge on neutrophils’ detrimental roles, highlighting the role of recently recognized NETs and EVs, followed by a discussion of their beneficial effects and molecular mechanisms in post-MI cardiac remodeling. In addition, emerging concepts about neutrophil diversity and their modulation of adaptive immunity are discussed.
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8
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Neutrophils in Tuberculosis: Cell Biology, Cellular Networking and Multitasking in Host Defense. Int J Mol Sci 2021; 22:ijms22094801. [PMID: 33946542 PMCID: PMC8125784 DOI: 10.3390/ijms22094801] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/28/2021] [Accepted: 04/28/2021] [Indexed: 12/20/2022] Open
Abstract
Neutrophils readily infiltrate infection foci, phagocytose and usually destroy microbes. In tuberculosis (TB), a chronic pulmonary infection caused by Mycobacterium tuberculosis (Mtb), neutrophils harbor bacilli, are abundant in tissue lesions, and their abundances in blood correlate with poor disease outcomes in patients. The biology of these innate immune cells in TB is complex. Neutrophils have been assigned host-beneficial as well as deleterious roles. The short lifespan of neutrophils purified from blood poses challenges to cell biology studies, leaving intracellular biological processes and the precise consequences of Mtb–neutrophil interactions ill-defined. The phenotypic heterogeneity of neutrophils, and their propensity to engage in cellular cross-talk and to exert various functions during homeostasis and disease, have recently been reported, and such observations are newly emerging in TB. Here, we review the interactions of neutrophils with Mtb, including subcellular events and cell fate upon infection, and summarize the cross-talks between neutrophils and lung-residing and -recruited cells. We highlight the roles of neutrophils in TB pathophysiology, discussing recent findings from distinct models of pulmonary TB, and emphasize technical advances that could facilitate the discovery of novel neutrophil-related disease mechanisms and enrich our knowledge of TB pathogenesis.
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9
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González LA, Melo-González F, Sebastián VP, Vallejos OP, Noguera LP, Suazo ID, Schultz BM, Manosalva AH, Peñaloza HF, Soto JA, Parker D, Riedel CA, González PA, Kalergis AM, Bueno SM. Characterization of the Anti-Inflammatory Capacity of IL-10-Producing Neutrophils in Response to Streptococcus pneumoniae Infection. Front Immunol 2021; 12:638917. [PMID: 33995357 PMCID: PMC8113954 DOI: 10.3389/fimmu.2021.638917] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2020] [Accepted: 04/06/2021] [Indexed: 12/14/2022] Open
Abstract
Neutrophils are immune cells classically defined as pro-inflammatory effector cells. However, current accumulated evidence indicates that neutrophils have more versatile immune-modulating properties. During acute lung infection with Streptococcus pneumoniae in mice, interleukin-10 (IL-10) production is required to temper an excessive lung injury and to improve survival, yet the cellular source of IL-10 and the immunomodulatory role of neutrophils during S. pneumoniae infection remain unknown. Here we show that neutrophils are the main myeloid cells that produce IL-10 in the lungs during the first 48 h of infection. Importantly, in vitro assays with bone-marrow derived neutrophils confirmed that IL-10 can be induced by these cells by the direct recognition of pneumococcal antigens. In vivo, we identified the recruitment of two neutrophil subpopulations in the lungs following infection, which exhibited clear morphological differences and a distinctive profile of IL-10 production at 48 h post-infection. Furthermore, adoptive transfer of neutrophils from WT mice into IL-10 knockout mice (Il10-/-) fully restored IL-10 production in the lungs and reduced lung histopathology. These results suggest that IL-10 production by neutrophils induced by S. pneumoniae limits lung injury and is important to mediate an effective immune response required for host survival.
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Affiliation(s)
- Liliana A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Felipe Melo-González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Valentina P Sebastián
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Omar P Vallejos
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Loreani P Noguera
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Isidora D Suazo
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Bárbara M Schultz
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Andrés H Manosalva
- Servicio de Anatomía Patológica, Hospital Barros Luco Trudeau, Santiago, Chile
| | - Hernán F Peñaloza
- Acute Lung Injury Center of Excellence, Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Jorge A Soto
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Dane Parker
- Department of Pathology, Immunology and Laboratory Medicine, Center for Immunity and Inflammation, Rutgers New Jersey Medical School, Newark, NJ, United States
| | - Claudia A Riedel
- Millennium Institute on Immunology and Immunotherapy, Departamento de Biología Celular, Facultad de Ciencias Biológicas y Facultad de Medicina, Universidad Andrés Bello, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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10
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Rambault M, Doz-Deblauwe É, Le Vern Y, Carreras F, Cunha P, Germon P, Rainard P, Winter N, Remot A. Neutrophils Encompass a Regulatory Subset Suppressing T Cells in Apparently Healthy Cattle and Mice. Front Immunol 2021; 12:625244. [PMID: 33717136 PMCID: PMC7952614 DOI: 10.3389/fimmu.2021.625244] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 01/11/2021] [Indexed: 12/24/2022] Open
Abstract
Neutrophils that reside in the bone marrow are swiftly recruited from circulating blood to fight infections. For a long time, these first line defenders were considered as microbe killers. However their role is far more complex as cross talk with T cells or dendritic cells have been described for human or mouse neutrophils. In cattle, these new roles are not documented yet. We identified a new subset of regulatory neutrophils that is present in the mouse bone marrow or circulate in cattle blood under steady state conditions. These regulatory neutrophils that display MHC-II on the surface are morphologically indistinguishable from classical MHC-IIneg neutrophils. However MHC-IIpos and MHC-IIneg neutrophils display distinct transcriptomic profiles. While MHC-IIneg and MHC-IIpos neutrophils display similar bacterial phagocytosis or killing activity, MHC-IIpos only are able to suppress T cell proliferation under contact-dependent mechanisms. Regulatory neutrophils are highly enriched in lymphoid organs as compared to their MHC-IIneg counterparts and in the mouse they express PDL-1, an immune checkpoint involved in T-cell blockade. Our results emphasize neutrophils as true partners of the adaptive immune response, including in domestic species. They open the way for discovery of new biomarkers and therapeutic interventions to better control cattle diseases.
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Affiliation(s)
- Marion Rambault
- INRAE, Université de Tours, ISP, Nouzilly, France.,Institut de l'Elevage, Paris, France
| | | | - Yves Le Vern
- INRAE, Université de Tours, ISP, Nouzilly, France
| | | | | | | | | | | | - Aude Remot
- INRAE, Université de Tours, ISP, Nouzilly, France
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11
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Interleukin-8 Receptor 2 (IL-8R2)-Deficient Mice Are More Resistant to Pulmonary Coccidioidomycosis than Control Mice. Infect Immun 2020; 89:IAI.00883-19. [PMID: 33106296 DOI: 10.1128/iai.00883-19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 09/14/2020] [Indexed: 12/15/2022] Open
Abstract
The pathology of human coccidioidomycosis is granulomatous inflammation with many neutrophils surrounding ruptured spherules, but the chemotactic pathways that draw neutrophils into the infected tissues are not known. We previously showed that formalin-killed spherules (FKS) stimulate mouse macrophages to secret macrophage inflammatory protein 2 (MIP-2), which suggested that CXC ELR+ chemokines might be involved in neutrophil recruitment in vivo To test that hypothesis, we intranasally infected interleukin-8R2 (IL-8R2) (Cxcr2)-deficient mice on a BALB/c background with Coccidioides immitis RS. IL-8R2-deficient mice had fewer neutrophils in infected lungs than controls, but unexpectedly the IL-8R2-deficient mice had fewer organisms in their lungs than the control mice. Infected IL-8R2-deficient mouse lungs had higher expression of genes associated with lymphocyte activation, including the Th1 and Th17-related cytokines Ifnγ and Il17a and the transcription factors Stat1 and Rorc Additionally, bronchial alveolar lavage fluid from infected IL-8R2-deficient mice contained more IL-17A and interferon-γ (IFN-γ). We postulate that neutrophils in the lung directly or indirectly interfere with the development of a protective Th1/Th17 immune response to C. immitis at the site of infection.
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12
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Abstract
Brucellosis is a bacterial disease of domestic animals and humans. The pathogenic ability of Brucella organisms relies on their stealthy strategy and their capacity to replicate within host cells and to induce long-lasting infections. Brucella organisms barely induce neutrophil activation and survive within these leukocytes by resisting microbicidal mechanisms. Very few Brucella-infected neutrophils are found in the target organs, except for the bone marrow, early in infection. Still, Brucella induces a mild reactive oxygen species formation and, through its lipopolysaccharide, promotes the premature death of neutrophils, which release chemokines and express "eat me" signals. This effect drives the phagocytosis of infected neutrophils by mononuclear cells that become thoroughly susceptible to Brucella replication and vehicles for bacterial dispersion. The premature death of the infected neutrophils proceeds without NETosis, necrosis/oncosis, or classical apoptosis morphology. In the absence of neutrophils, the Th1 response exacerbates and promotes bacterial removal, indicating that Brucella-infected neutrophils dampen adaptive immunity. This modulatory effect opens a window for bacterial dispersion in host tissues before adaptive immunity becomes fully activated. However, the hyperactivation of immunity is not without a price, since neutropenic Brucella-infected animals develop cachexia in the early phases of the disease. The delay in the immunological response seems a sine qua non requirement for the development of long-lasting brucellosis. This property may be shared with other pathogenic alphaproteobacteria closely related to Brucella We propose a model in which Brucella-infected polymorphonuclear neutrophils (PMNs) function as "Trojan horse" vehicles for bacterial dispersal and as modulators of the Th1 adaptive immunity in infection.
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13
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Doz-Deblauwe É, Carreras F, Arbues A, Remot A, Epardaud M, Malaga W, Mayau V, Prandi J, Astarie-Dequeker C, Guilhot C, Demangel C, Winter N. CR3 Engaged by PGL-I Triggers Syk-Calcineurin-NFATc to Rewire the Innate Immune Response in Leprosy. Front Immunol 2019; 10:2913. [PMID: 31921172 PMCID: PMC6928039 DOI: 10.3389/fimmu.2019.02913] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 11/27/2019] [Indexed: 12/31/2022] Open
Abstract
Mycobacterium leprae, the causative agent of leprosy, is unique amongst human pathogens in its capacity to produce the virulence factor phenolic glycolipid (PGL)-I. In addition to mediating bacterial tropism for neurons, PGL-I interacts with Complement Receptor (CR)3 on macrophages (MPs) to promote infection. We demonstrate here that PGL-I binding to CR3 also enhances bacterial invasion of both polymorphonuclear neutrophils (PMNs) and dendritic cells (DCs). Moreover, in all cell types CR3 engagement by PGL-I activates the Syk tyrosine kinase, inducing calcineurin-dependent nuclear translocation of the transcription factor NFATc. This selectively augments the production of IL-2 by DCs, IL-10 by PMNs and IL-1β by MPs. In intranasally-infected mice PGL-I binding to CR3 heightens mycobacterial phagocytosis by lung PMNs and MPs, and stimulates NFATc-controlled production of Syk-dependent cytokines. Our study thus identifies the CR3-Syk-NFATc axis as a novel signaling pathway activated by PGL-I in innate immune cells, rewiring host cytokine responses to M. leprae.
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Affiliation(s)
- Émilie Doz-Deblauwe
- ISP, Infectiologie et Santé Publique, INRA, Université de Tours, Nouzilly, France
| | - Florence Carreras
- ISP, Infectiologie et Santé Publique, INRA, Université de Tours, Nouzilly, France
| | - Ainhoa Arbues
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, BP 64182, Toulouse, France
| | - Aude Remot
- ISP, Infectiologie et Santé Publique, INRA, Université de Tours, Nouzilly, France
| | - Mathieu Epardaud
- ISP, Infectiologie et Santé Publique, INRA, Université de Tours, Nouzilly, France
| | - Wladimir Malaga
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, BP 64182, Toulouse, France
| | - Véronique Mayau
- Immunobiologie de l'Infection, Institut Pasteur, INSERM U1221, Paris, France
| | - Jacques Prandi
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, BP 64182, Toulouse, France
| | - Catherine Astarie-Dequeker
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, BP 64182, Toulouse, France
| | - Christophe Guilhot
- Institut de Pharmacologie et de Biologie Structurale (IPBS), Université de Toulouse, CNRS, UPS, BP 64182, Toulouse, France
| | - Caroline Demangel
- Immunobiologie de l'Infection, Institut Pasteur, INSERM U1221, Paris, France
| | - Nathalie Winter
- ISP, Infectiologie et Santé Publique, INRA, Université de Tours, Nouzilly, France
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14
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Li Y, Wang W, Yang F, Xu Y, Feng C, Zhao Y. The regulatory roles of neutrophils in adaptive immunity. Cell Commun Signal 2019; 17:147. [PMID: 31727175 PMCID: PMC6854633 DOI: 10.1186/s12964-019-0471-y] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 10/25/2019] [Indexed: 12/16/2022] Open
Abstract
Neutrophils have long been considered as cells playing a crucial role in the immune defence against invading pathogens. Accumulating evidence strongly supported the direct and indirect regulatory effects of neutrophils on adaptive immunity. Exogenous cytokines or cytokines produced in an autocrine manner as well as a cell-to-cell contact between neutrophils and T cells could induce the expression of MHC-II and costimulatory molecules on neutrophils, supporting that neutrophils may function as antigen-presenting cells (APCs) in respects of presenting antigens and activating T cells. In addition to the inflammatory roles, neutrophils also have the propensity and ability to suppress the immune response through different mechanisms. In this review, we will mainly highlight the heterogeneity and functional plasticity of neutrophils and the antigen-presenting capacity of different neutrophil subsets. We also discuss mechanisms relevant to the regulatory effects of neutrophils on adaptive immunity. Understanding how neutrophils modulate adaptive immunity may provide novel strategies and new therapeutic approaches for diseases associated with neutrophils.
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Affiliation(s)
- Yang Li
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beichen West Road 1-5, Chaoyang District, Beijing, 100101, China
| | - Wei Wang
- Department of Urology, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China
| | - Fan Yang
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beichen West Road 1-5, Chaoyang District, Beijing, 100101, China
| | - Yanan Xu
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beichen West Road 1-5, Chaoyang District, Beijing, 100101, China
| | - Chang Feng
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beichen West Road 1-5, Chaoyang District, Beijing, 100101, China
| | - Yong Zhao
- State Key Laboratory of Membrane Biology, Institute of Zoology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Beichen West Road 1-5, Chaoyang District, Beijing, 100101, China. .,Institute for Stem Cell and Regeneration, Chinese Academy of Sciences, Beijing, China.
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15
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Interleukin-10 (IL-10) Produced by Mutant Toxic Shock Syndrome Toxin 1 Vaccine-Induced Memory T Cells Downregulates IL-17 Production and Abrogates the Protective Effect against Staphylococcus aureus Infection. Infect Immun 2019; 87:IAI.00494-19. [PMID: 31358568 DOI: 10.1128/iai.00494-19] [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: 06/27/2019] [Accepted: 07/23/2019] [Indexed: 11/20/2022] Open
Abstract
Development of long-term memory is crucial for vaccine-induced adaptive immunity against infectious diseases such as Staphylococcus aureus infection. Toxic shock syndrome toxin 1 (TSST-1), one of the superantigens produced by S. aureus, is a possible vaccine candidate against infectious diseases caused by this pathogen. We previously reported that vaccination with less toxic mutant TSST-1 (mTSST-1) induced T helper 17 (Th17) cells and elicited interleukin-17A (IL-17A)-mediated protection against S. aureus infection 1 week after vaccination. In the present study, we investigated the host immune response induced by mTSST-1 vaccination in the memory phase, 12 weeks after the final vaccination. The protective effect and IL-17A production after vaccination with mTSST-1 were eliminated because of IL-10 production. In the presence of IL-10-neutralizing monoclonal antibody (mAb), IL-17A production was restored in culture supernatants of CD4+ T cells and macrophages sorted from the spleens of vaccinated mice. Vaccinated mice treated with anti-IL-10 mAb were protected against systemic S. aureus infection in the memory phase. From these results, it was suggested that IL-10 produced in the memory phase suppresses the IL-17A-dependent vaccine effect through downregulation of IL-17A production.
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16
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Oberg HH, Wesch D, Kalyan S, Kabelitz D. Regulatory Interactions Between Neutrophils, Tumor Cells and T Cells. Front Immunol 2019; 10:1690. [PMID: 31379875 PMCID: PMC6657370 DOI: 10.3389/fimmu.2019.01690] [Citation(s) in RCA: 59] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Accepted: 07/04/2019] [Indexed: 12/16/2022] Open
Abstract
Apart from their activity in combating infections, neutrophils play an important role in regulating the tumor microenvironment. Neutrophils can directly kill (antibody-coated) cancer cells, and support other immune anti-tumoral strategies. On the other hand, neutrophils can also exert pro-tumorigenic activities via the production of factors which promote cancer growth, angiogenesis and metastasis formation. The balance of anti- and pro-cancer activity is influenced by the particularly delicate interplay that exists between neutrophils and T lymphocytes. In murine models, it has been reported that γδ T cells are a major source of IL-17 that drives the recruitment and pro-tumorigenic differentiation of neutrophils. This, however, contrasts with the well-studied anti-tumor activity of γδ T cells in experimental models and the anti-tumor activity of human γδ T cells. In this article, we first review the reciprocal interactions between neutrophils, tumor cells and T lymphocytes with a special focus on their interplay with γδ T cells, followed by the presentation of our own recent results. We have previously shown that zoledronic acid (ZOL)-activated neutrophils inhibit γδ T-cell proliferation due to the production of reactive oxygen species, arginase-1 and serine proteases. We now demonstrate that killing of ductal pancreatic adenocarcinoma (PDAC) cells by freshly isolated resting human γδ T cells was reduced in the presence of neutrophils and even more pronounced so after activation of neutrophils with ZOL. In contrast, direct T-cell receptor-dependent activation by γδ T cell-specific pyrophosphate antigens or by bispecific antibodies enhanced the cytotoxic activity and cytokine/granzyme B production of resting human γδ T cells, thereby overriding the suppression by ZOL-activated neutrophils. Additionally, the coculture of purified neutrophils with autologous short-term expanded γδ T cells enhanced rather than inhibited γδ T-cell cytotoxicity against PDAC cells. Purified neutrophils alone also exerted a small but reproducible lysis of PDAC cells which was further enhanced in the presence of γδ T cells. The latter set-up was associated with improved granzyme B and IFN-γ release which was further increased in the presence of ZOL. Our present results demonstrate that the presence of neutrophils can enhance the killing capacity of activated γδ T cells. We discuss these results in the broader context of regulatory interactions between neutrophils and T lymphocytes.
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Affiliation(s)
- Hans-Heinrich Oberg
- Institute of Immunology, Christian-Albrechts-University of Kiel, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Daniela Wesch
- Institute of Immunology, Christian-Albrechts-University of Kiel, University Hospital Schleswig-Holstein, Kiel, Germany
| | - Shirin Kalyan
- Clinical Research Development Laboratory, Department of Medicine, BC Children's Hospital Research Institute, University of British Columbia, Vancouver, BC, Canada
| | - Dieter Kabelitz
- Institute of Immunology, Christian-Albrechts-University of Kiel, University Hospital Schleswig-Holstein, Kiel, Germany
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17
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Carow B, Hauling T, Qian X, Kramnik I, Nilsson M, Rottenberg ME. Spatial and temporal localization of immune transcripts defines hallmarks and diversity in the tuberculosis granuloma. Nat Commun 2019; 10:1823. [PMID: 31015452 PMCID: PMC6479067 DOI: 10.1038/s41467-019-09816-4] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Accepted: 04/02/2019] [Indexed: 01/04/2023] Open
Abstract
Granulomas are the pathological hallmark of tuberculosis (TB) and the niche where bacilli can grow and disseminate or the immunological microenvironment in which host cells interact to prevent bacterial dissemination. Here we show 34 immune transcripts align to the morphology of lung sections from Mycobacterium tuberculosis-infected mice at cellular resolution. Colocalizing transcript networks at <10 μm in C57BL/6 mouse granulomas increase complexity with time after infection. B-cell clusters develop late after infection. Transcripts from activated macrophages are enriched at subcellular distances from M. tuberculosis. Encapsulated C3HeB/FeJ granulomas show necrotic centers with transcripts associated with immunosuppression (Foxp3, Il10), whereas those in the granuloma rims associate with activated T cells and macrophages. We see highly diverse networks with common interactors in similar lesions. Different immune landscapes of M. tuberculosis granulomas depending on the time after infection, the histopathological features of the lesion, and the proximity to bacteria are here defined.
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Affiliation(s)
- Berit Carow
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 77, Stockholm, Sweden
| | - Thomas Hauling
- Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, 171 65, Solna, Sweden
| | - Xiaoyan Qian
- Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, 171 65, Solna, Sweden
| | - Igor Kramnik
- Department of Medicine, Boston University School of Medicine, Boston, Massachusetts, 02118, USA
| | - Mats Nilsson
- Science for Life Laboratory, Department of Biochemistry and Biophysics, Stockholm University, 171 65, Solna, Sweden
| | - Martin E Rottenberg
- Department of Microbiology, Tumor and Cell Biology, Karolinska Institutet, 171 77, Stockholm, Sweden.
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18
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Abstract
Neutrophils are increasingly appreciated as multifaceted regulators of innate immunity and inflammation. Historically, these important innate cells have been considered suicidal phagocytes with a primary role in the destruction of extracellular pathogens. Recent studies have significantly altered this simplistic view of neutrophils and have instead presented extensive evidence for a complex role for neutrophils in the control of diverse inflammatory conditions. It is now appreciated that neutrophils are crucial not only for efficient clearance of various pathogens but also in the development and control of inflammatory states such as autoimmunity, cancer, and tissue repair. Mounting evidence also suggests that neutrophils are capable of differential activation giving rise to distinctly polarized cells with diverse effector functions. Interferon lambda (IFN-λ) (also known as type III IFN) has emerged as an unexpected regulator of neutrophil function. IFN-λs are the newest members of the IFN family of antiviral cytokines and although initial studies suggested identical biological activities to type I IFNs, it is now apparent that type III IFN has distinct functions in vivo. In this article, I summarize recent evidence linking type III IFNs to the regulation and potential tailoring of neutrophil responses. These exciting observations might have important implications for the development of IFN-λs as novel therapeutic cytokines for the treatment of a diversity of inflammatory states where neutrophils are crucial players.
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Affiliation(s)
- Amariliz Rivera
- Department of Pediatrics, Center for Immunity and Inflammation, Rutgers Health and Biomedical Sciences, Newark, New Jersey
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19
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Okeke EB, Uzonna JE. The Pivotal Role of Regulatory T Cells in the Regulation of Innate Immune Cells. Front Immunol 2019; 10:680. [PMID: 31024539 PMCID: PMC6465517 DOI: 10.3389/fimmu.2019.00680] [Citation(s) in RCA: 144] [Impact Index Per Article: 28.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Accepted: 03/12/2019] [Indexed: 12/11/2022] Open
Abstract
The distinction between innate and adaptive immunity is one of the basic tenets of immunology. The co-operation between these two arms of the immune system is a major determinant of the resistance or susceptibility of the host following pathogen invasion. Hence, this interactive co-operation between cells of the innate and adaptive immunity is of significant interest to immunologists. The sub-population of CD4+ T cells with regulatory phenotype (regulatory T cells; Tregs), which constitute a part of the adaptive immune system, have been widely implicated in the regulation of the immune system and maintenance of immune homeostasis. In the last two decades, there has been an explosion in research describing the role of Tregs and their relevance in several immunopathologies ranging from inflammation to cancer. The majority of these studies focus on the role of Tregs on the cells of the adaptive immune system. Recently, there is significant interest in the role of Tregs on cells of the innate immune system. In this review, we examine the literature on the role of Tregs in immunology. Specifically, we focus on the emerging knowledge of Treg interaction with dendritic cells, macrophages, neutrophils, and γδ T cells. We highlight this interaction as an important link between innate and adaptive immune systems which also indicate the far-reaching role of Tregs in the regulation of immune responses and maintenance of self-tolerance and immune homeostasis.
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Affiliation(s)
- Emeka B Okeke
- Department of Pharmaceutical Sciences, University of Michigan, Ann Arbor, MI, United States
| | - Jude E Uzonna
- Department of Immunology, Faculty of Medicine, University of Manitoba, Winnipeg, MB, Canada
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20
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Castell SD, Harman MF, Morón G, Maletto BA, Pistoresi-Palencia MC. Neutrophils Which Migrate to Lymph Nodes Modulate CD4 + T Cell Response by a PD-L1 Dependent Mechanism. Front Immunol 2019; 10:105. [PMID: 30761151 PMCID: PMC6362305 DOI: 10.3389/fimmu.2019.00105] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2018] [Accepted: 01/14/2019] [Indexed: 01/20/2023] Open
Abstract
It is well known that neutrophils are rapidly recruited to a site of injury or infection and perform a critical role in pathogen clearance and inflammation. However, they are also able to interact with and regulate innate and adaptive immune cells and some stimuli induce the migration of neutrophils to lymph nodes (LNs). Previously, we demonstrated that the immune complex (IC) generated by injecting OVA into the footpad of OVA/CFA immunized mice induced the migration of OVA+ neutrophils to draining LNs (dLNs). Here we investigate the effects of these neutrophils which reach dLNs on CD4+ T cell response. Our findings here strongly support a dual role for neutrophils in dLNs regarding CD4+ T cell response modulation. On the one hand, the CD4+ T cell population expands after the influx of OVA+ neutrophils to dLNs. These CD4+ T cells enlarge their proliferative response, activation markers and IL-17 and IFN-γ cytokine production. On the other hand, these neutrophils also restrict CD4+ T cell expansion. The neutrophils in the dLNs upregulate PD-L1 molecules and are capable of suppressing CD4+ T cell proliferation. These results indicate that neutrophils migration to dLNs have an important role in the homeostasis of adaptive immunity. This report describes for the first time that the influx of neutrophils to dLNs dependent on IC presence improves CD4+ T cell response, at the same time controlling CD4+ T cell proliferation through a PD-L1 dependent mechanism.
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Affiliation(s)
- Sofía D Castell
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Centro de Investigaciones en Bioquímica Clínica e Inmunología, Córdoba, Argentina
| | - María F Harman
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Centro de Investigaciones en Bioquímica Clínica e Inmunología, Córdoba, Argentina
| | - Gabriel Morón
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Centro de Investigaciones en Bioquímica Clínica e Inmunología, Córdoba, Argentina
| | - Belkys A Maletto
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Centro de Investigaciones en Bioquímica Clínica e Inmunología, Córdoba, Argentina
| | - María C Pistoresi-Palencia
- Departamento de Bioquímica Clínica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Córdoba, Argentina.,Consejo Nacional de Investigaciones Científicas y Técnicas, Centro de Investigaciones en Bioquímica Clínica e Inmunología, Córdoba, Argentina
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21
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Abstract
Pulmonary respiration inevitably exposes the mucosal surface of the lung to potentially noxious stimuli, including pathogens, allergens, and particulates, each of which can trigger pulmonary damage and inflammation. As inflammation resolves, B and T lymphocytes often aggregate around large bronchi to form inducible Bronchus-Associated Lymphoid Tissue (iBALT). iBALT formation can be initiated by a diverse array of molecular pathways that converge on the activation and differentiation of chemokine-expressing stromal cells that serve as the scaffolding for iBALT and facilitate the recruitment, retention, and organization of leukocytes. Like conventional lymphoid organs, iBALT recruits naïve lymphocytes from the blood, exposes them to local antigens, in this case from the airways, and supports their activation and differentiation into effector cells. The activity of iBALT is demonstrably beneficial for the clearance of respiratory pathogens; however, it is less clear whether it dampens or exacerbates inflammatory responses to non-infectious agents. Here, we review the evidence regarding the role of iBALT in pulmonary immunity and propose that the final outcome depends on the context of the disease.
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22
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Peñaloza HF, Alvarez D, Muñoz-Durango N, Schultz BM, González PA, Kalergis AM, Bueno SM. The role of myeloid-derived suppressor cells in chronic infectious diseases and the current methodology available for their study. J Leukoc Biol 2018; 105:857-872. [PMID: 30480847 DOI: 10.1002/jlb.mr0618-233r] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2018] [Revised: 10/07/2018] [Accepted: 10/30/2018] [Indexed: 12/23/2022] Open
Abstract
An effective pathogen has the ability to evade the immune response. The strategies used to achieve this may be based on the direct action of virulence factors or on the induction of host factors. Myeloid-derived suppressor cells (MDSCs) are immune cells with an incredible ability to suppress the inflammatory response, which makes them excellent targets to be exploited by pathogenic bacteria, viruses, or parasites. In this review, we describe the origin and suppressive mechanisms of MDSCs, as well as their role in chronic bacterial, viral, and parasitic infections, where their expansion seems to be essential in the chronicity of the disease. We also analyze the disadvantages of current MDSC depletion strategies and the different in vitro generation methods, which can be useful tools for the deeper study of these cells in the context of microbial infections.
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Affiliation(s)
- Hernán F Peñaloza
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Diana Alvarez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Natalia Muñoz-Durango
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Bárbara M Schultz
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo A González
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile.,Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Pontificia Universidad Católica de Chile, Santiago, Chile
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23
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Abstract
Protective immunity in tuberculosis (TB) is subject of debate in the TB research community, as this is key to fully understand TB pathogenesis and to develop new promising tools for TB diagnosis and prognosis as well as a more efficient TB vaccine. IFN-γ producing CD4+ T cells are key in TB control, but may not be sufficient to provide protection. Additional subsets have been identified that contribute to protection such as multifunctional and cytolytic T-cell subsets, including classical and nonclassical T cells as well as novel innate immune cell subsets resulting from trained immunity. However, to define protective immune responses against TB, the complexity of balancing TB immunity also has to be considered. In this review, insights into effector cell immunity and how this is modulated by regulatory cells, associated comorbidities and the host microbiome, is discussed. We systematically map how different suppressive immune cell subsets may affect effector cell responses at the local site of infection. We also dissect how common comorbidities such as HIV, helminths and diabetes may bias protective TB immunity towards pathogenic and regulatory responses. Finally, also the composition and diversity of the microbiome in the lung and gut could affect host TB immunity. Understanding these various aspects of the immunological balance in the human host is fundamental to prevent TB infection and disease.
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Affiliation(s)
- Susanna Brighenti
- Karolinska Institutet, Department of Medicine, Center for Infectious Medicine (CIM), Karolinska University Hospital Huddinge, Stockholm, Sweden
| | - Simone A. Joosten
- Leiden University Medical Center, Department of Infectious Diseases, Leiden, The Netherlands
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24
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Autologous tumor cells/bacillus Calmette-Guérin/formalin-based novel breast cancer vaccine induces an immune antitumor response. Oncotarget 2018; 9:20222-20238. [PMID: 29755647 PMCID: PMC5945537 DOI: 10.18632/oncotarget.25044] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Accepted: 03/22/2018] [Indexed: 12/20/2022] Open
Abstract
Autologous cancer cell vaccines represent a multivalent patient-specific treatment. Studies have demonstrated that these immunotherapies should be combined with immunomodulators to improve results. We tested in breast cancer the antitumor effects of a 200 µg autologous tumor cells homogenate combined with 0.0625 mg of bacillus Calmette-Guérin (BCG), and 0.02% formalin. We used a 4T1 murine model of BALB/c receiving four weekly injections of either this vaccine or control treatments. The control treatments were either Phosphate Buffer Saline, BCG treated with formalin, or the tumor cells homogenate plus BCG alone. We found that mice treated with the vaccine had the lowest tumor growth rate and mitosis percentage. The vaccinated group also showed a marked increase in infiltration of antitumor cells (natural killer, CD8+ T and CD4+ Th1 cells), as well as a decrease of myeloid-derived suppressor cells (MDSCs) and tumor-associated macrophages (TAMs). Additionally, we also observed a possible activation of the immune memory response as indicated by plasma cell tumor infiltration. Our results demonstrate that our proposed breast cancer vaccine induces a potent antitumor effect in 4T1 tumor-bearing mice. Its effectiveness, low cost and simple preparation method, makes it a promising treatment candidate for personalized breast cancer immunotherapy.
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25
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Bramsen JB, Rasmussen MH, Ongen H, Mattesen TB, Ørntoft MBW, Árnadóttir SS, Sandoval J, Laguna T, Vang S, Øster B, Lamy P, Madsen MR, Laurberg S, Esteller M, Dermitzakis ET, Ørntoft TF, Andersen CL. Molecular-Subtype-Specific Biomarkers Improve Prediction of Prognosis in Colorectal Cancer. Cell Rep 2018; 19:1268-1280. [PMID: 28494874 DOI: 10.1016/j.celrep.2017.04.045] [Citation(s) in RCA: 72] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 12/28/2016] [Accepted: 04/16/2017] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is characterized by major inter-tumor diversity that complicates the prediction of disease and treatment outcomes. Recent efforts help resolve this by sub-classification of CRC into natural molecular subtypes; however, this strategy is not yet able to provide clinicians with improved tools for decision making. We here present an extended framework for CRC stratification that specifically aims to improve patient prognostication. Using transcriptional profiles from 1,100 CRCs, including >300 previously unpublished samples, we identify cancer cell and tumor archetypes and suggest the tumor microenvironment as a major prognostic determinant that can be influenced by the microbiome. Notably, our subtyping strategy allowed identification of archetype-specific prognostic biomarkers that provided information beyond and independent of UICC-TNM staging, MSI status, and consensus molecular subtyping. The results illustrate that our extended subtyping framework, combining subtyping and subtype-specific biomarkers, could contribute to improved patient prognostication and may form a strong basis for future studies.
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Affiliation(s)
| | | | - Halit Ongen
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva 1211, Switzerland; Institute for Genetics and Genomics in Geneva (iGE3), University of Geneva, Geneva 1211, Switzerland; Swiss Institute of Bioinformatics, Geneva 1211, Switzerland
| | - Trine Block Mattesen
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus 8200, Denmark
| | | | | | - Juan Sandoval
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet, Barcelona 08908, Catalonia, Spain
| | - Teresa Laguna
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet, Barcelona 08908, Catalonia, Spain
| | - Søren Vang
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus 8200, Denmark
| | - Bodil Øster
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus 8200, Denmark
| | - Philippe Lamy
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus 8200, Denmark
| | | | - Søren Laurberg
- Section of Coloproctology, Aarhus University Hospital, Aarhus 8000, Denmark
| | - Manel Esteller
- Cancer Epigenetics and Biology Program, Bellvitge Biomedical Research Institute (IDIBELL), L'Hospitalet, Barcelona 08908, Catalonia, Spain; Physiological Sciences Department, School of Medicine and Health Sciences, University of Barcelona, Barcelona 08907, Catalonia, Spain; Institucio Catalana de Recerca i Estudis Avancats (ICREA), Barcelona 08010, Catalonia, Spain
| | - Emmanouil Theophilos Dermitzakis
- Department of Genetic Medicine and Development, University of Geneva Medical School, Geneva 1211, Switzerland; Institute for Genetics and Genomics in Geneva (iGE3), University of Geneva, Geneva 1211, Switzerland; Swiss Institute of Bioinformatics, Geneva 1211, Switzerland
| | - Torben Falck Ørntoft
- Department of Molecular Medicine, Aarhus University Hospital, Aarhus 8200, Denmark
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Boro M, Balaji KN. CXCL1 and CXCL2 Regulate NLRP3 Inflammasome Activation via G-Protein–Coupled Receptor CXCR2. THE JOURNAL OF IMMUNOLOGY 2017; 199:1660-1671. [DOI: 10.4049/jimmunol.1700129] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/26/2017] [Accepted: 06/21/2017] [Indexed: 11/19/2022]
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Abstract
Tuberculosis remains one of the greatest threats to human health. The causative bacterium, Mycobacterium tuberculosis, is acquired by the respiratory route. It is exquisitely adapted to humans and is a prototypic intracellular pathogen of macrophages, with alveolar macrophages being the primary conduit of infection and disease. However, M. tuberculosis bacilli interact with and are affected by several soluble and cellular components of the innate immune system which dictate the outcome of primary infection, most commonly a latently infected healthy human host, in whom the bacteria are held in check by the host immune response within the confines of tissue granuloma, the host histopathologic hallmark. Such individuals can develop active TB later in life with impairment in the immune system. In contrast, in a minority of infected individuals, the early host immune response fails to control bacterial growth, and progressive granulomatous disease develops, facilitating spread of the bacilli via infectious aerosols. The molecular details of the M. tuberculosis-host innate immune system interaction continue to be elucidated, particularly those occurring within the lung. However, it is clear that a number of complex processes are involved at the different stages of infection that may benefit either the bacterium or the host. In this article, we describe a contemporary view of the molecular events underlying the interaction between M. tuberculosis and a variety of cellular and soluble components and processes of the innate immune system.
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Mourik BC, Lubberts E, de Steenwinkel JEM, Ottenhoff THM, Leenen PJM. Interactions between Type 1 Interferons and the Th17 Response in Tuberculosis: Lessons Learned from Autoimmune Diseases. Front Immunol 2017; 8:294. [PMID: 28424682 PMCID: PMC5380685 DOI: 10.3389/fimmu.2017.00294] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/01/2017] [Indexed: 01/04/2023] Open
Abstract
The classical paradigm of tuberculosis (TB) immunity, with a central protective role for Th1 responses and IFN-γ-stimulated cellular responses, has been challenged by unsatisfactory results of vaccine strategies aimed at enhancing Th1 immunity. Moreover, preclinical TB models have shown that increasing IFN-γ responses in the lungs is more damaging to the host than to the pathogen. Type 1 interferon signaling and altered Th17 responses have also been associated with active TB, but their functional roles in TB pathogenesis remain to be established. These two host responses have been studied in more detail in autoimmune diseases (AID) and show functional interactions that are of potential interest in TB immunity. In this review, we first identify the role of type 1 interferons and Th17 immunity in TB, followed by an overview of interactions between these responses observed in systemic AID. We discuss (i) the effects of GM-CSF-secreting Th17.1 cells and type 1 interferons on CCR2+ monocytes; (ii) convergence of IL-17 and type 1 interferon signaling on stimulating B-cell activating factor production and the central role of neutrophils in this process; and (iii) synergy between IL-17 and type 1 interferons in the generation and function of tertiary lymphoid structures and the associated follicular helper T-cell responses. Evaluation of these autoimmune-related pathways in TB pathogenesis provides a new perspective on recent developments in TB research.
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Affiliation(s)
- Bas C Mourik
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Erik Lubberts
- Department of Rheumatology, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Jurriaan E M de Steenwinkel
- Department of Medical Microbiology and Infectious Diseases, Erasmus University Medical Center, Rotterdam, Netherlands
| | - Tom H M Ottenhoff
- Department of Infectious Diseases, Leiden University Medical Center, Leiden, Netherlands
| | - Pieter J M Leenen
- Department of Immunology, Erasmus University Medical Center, Rotterdam, Netherlands
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Peñaloza HF, Schultz BM, Nieto PA, Salazar GA, Suazo I, Gonzalez PA, Riedel CA, Alvarez-Lobos MM, Kalergis AM, Bueno SM. Opposing roles of IL-10 in acute bacterial infection. Cytokine Growth Factor Rev 2016; 32:17-30. [PMID: 27522641 DOI: 10.1016/j.cytogfr.2016.07.003] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2016] [Accepted: 07/14/2016] [Indexed: 12/16/2022]
Abstract
Interleukin-10 (IL-10) is recognized as an anti-inflammatory cytokine that downmodulates inflammatory immune responses at multiple levels. In innate cells, production of this cytokine is usually triggered after pathogen recognition receptor (PRR) engagement by pathogen-associated molecular patterns (PAMPs) or damage-associated molecular patters (DAMPs), as well as by other soluble factors. Importantly, IL-10 is frequently secreted during acute bacterial infections and has been described to play a key role in infection resolution, although its effects can significantly vary depending on the infecting bacterium. While the production of IL-10 might favor host survival in some cases, it may also result harmful for the host in other circumstances, as it can prevent appropriate bacterial clearance. In this review we discuss the role of IL-10 in bacterial clearance and propose that this cytokine is required to recover from infection caused by extracellular or highly pro-inflammatory bacteria. Altogether, we propose that IL-10 drives excessive suppression of the immune response upon infection with intracellular bacteria or in non-inflammatory bacterial infections, which ultimately favors bacterial persistence and dissemination within the host. Thus, the nature of the bacterium causing infection is an important factor that needs to be taken into account when considering new immunotherapies that consist on the modulation of inflammation, such as IL-10. Indeed, induction of this cytokine may significantly improve the host's immune response to certain bacteria when antibiotics are not completely effective.
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Affiliation(s)
- Hernán F Peñaloza
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Barbara M Schultz
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Pamela A Nieto
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Geraldyne A Salazar
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Isidora Suazo
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Pablo A Gonzalez
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile
| | - Claudia A Riedel
- Millennium Institute on Immunology and Immunotherapy, Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas y Facultad de Medicina, Universidad Andrés Bello, Chile
| | - Manuel M Alvarez-Lobos
- Departamento de Gastroenterología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Chile
| | - Alexis M Kalergis
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile; Departamento de Endocrinología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Chile; INSERM U1064, Nantes, France
| | - Susan M Bueno
- Millennium Institute on Immunology and Immunotherapy, Departamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, Chile; INSERM U1064, Nantes, France.
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Graves AJ, Hokey DA. Tuberculosis vaccine development: Shifting focus amid increasing development challenges. Hum Vaccin Immunother 2016; 11:1910-6. [PMID: 26125249 PMCID: PMC4635864 DOI: 10.1080/21645515.2015.1040955] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
A new tuberculosis vaccine is needed to replace or enhance BCG, which induces variable protection against Mycobacterium tuberculosis pulmonary infections in adults. Development of new TB vaccine candidates is severely hampered by the lack of a correlate of immunity, unproven animal models, and limited funding opportunities. One candidate, MVA85A, recently failed to meet its efficacy endpoint goals despite promising early-phase trial data. As a result, some in the field believe we should now shift our focus away from product development and toward a research-oriented approach. Here, we outline our suggestions for this research-oriented strategy including diversification of the candidate pipeline, expanding measurements of immunity, improving pre-clinical animal models, and investing in combination pre-clinical/experimental medicine studies. As with any evolution, this change in strategy comes at a cost but may also represent an opportunity for advancing the field.
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Abdalla AE, Lambert N, Duan X, Xie J. Interleukin-10 Family and Tuberculosis: An Old Story Renewed. Int J Biol Sci 2016; 12:710-7. [PMID: 27194948 PMCID: PMC4870714 DOI: 10.7150/ijbs.13881] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Accepted: 01/15/2016] [Indexed: 02/06/2023] Open
Abstract
The interleukin-10 (IL-10) family of cytokines consists of six immune mediators, namely IL-10, IL-19, IL-20, IL-22, IL-24 and IL-26. IL-10, IL-22, IL-24 and IL-26 are critical for the regulation of host defense against Mycobacterium tuberculosis infections. Specifically, IL-10 and IL-26 can suppress the antimycobacterial immunity and promote the survival of pathogen, while IL-22 and IL-24 can generate protective responses and inhibit the intracellular growth of pathogen. Knowledge about the new players in tuberculosis immunology, namely IL-10 family, can inform novel immunity-based countermeasures and host directed therapies against tuberculosis.
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Affiliation(s)
- Abualgasim Elgaili Abdalla
- 1. Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
- 2. Department of Clinical Microbiology, College of Medical Laboratory Sciences, Omdurman Islamic University, Omdurman, Khartoum, Sudan
| | - Nzungize Lambert
- 1. Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
| | - Xiangke Duan
- 1. Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
| | - Jianping Xie
- 1. Institute of Modern Biopharmaceuticals, State Key Laboratory Breeding Base of Eco-Environment and Bio-Resource of the Three Gorges Area, Key Laboratory of Eco-environments in Three Gorges Reservoir Region, Ministry of Education, School of Life Sciences, Southwest University, Beibei, Chongqing 400715, China
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Lombard R, Doz E, Carreras F, Epardaud M, Le Vern Y, Buzoni-Gatel D, Winter N. IL-17RA in Non-Hematopoietic Cells Controls CXCL-1 and 5 Critical to Recruit Neutrophils to the Lung of Mycobacteria-Infected Mice during the Adaptive Immune Response. PLoS One 2016; 11:e0149455. [PMID: 26871571 PMCID: PMC4752258 DOI: 10.1371/journal.pone.0149455] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 01/31/2016] [Indexed: 12/26/2022] Open
Abstract
During chronic infection with Mycobacterium tuberculosis (Mtb), bacilli multiplication is constrained within lung granulomas until excessive inflammation destroys the lung. Neutrophils are recruited early and participate in granuloma formation, but excessive neutrophilia exacerbates the tuberculosis disease. Neutrophils thus appear as potential targets for therapeutic interventions, especially in patients for whom no antibiotic treatment is possible. Signals that regulate neutrophil recruitment to the lung during mycobacterial infection need to be better understood. We demonstrated here, in the mouse model, that neutrophils were recruited to the lung in two waves after intranasal infection with virulent Mtb or the live attenuated vaccine strain Bacillus Calmette Guérin (BCG). A first wave of neutrophils was swiftly recruited, followed by a subsequent adaptive wave that reached the lung together with IFN-γ- and IL-17A-producing T cells. Interestingly, the second neutrophil wave did not participate to mycobacteria control in the lung and established contacts with T cells. The adaptive wave was critically dependent on the expression of IL-17RA, the receptor for IL-17A, expressed in non-hematopoietic cells. In absence of this receptor, curtailed CXCL-1 and 5 production in the lung restrained neutrophil recruitment. CXCL-1 and 5 instillation reconstituted lung neutrophil recruitment in BCG-infected IL17RA-/- mice.
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Affiliation(s)
- Robin Lombard
- INRA, Université de Tours, UMR 1282, Infectiologie et Santé Publique, Nouzilly, France
| | - Emilie Doz
- INRA, Université de Tours, UMR 1282, Infectiologie et Santé Publique, Nouzilly, France
| | - Florence Carreras
- INRA, Université de Tours, UMR 1282, Infectiologie et Santé Publique, Nouzilly, France
| | - Mathieu Epardaud
- INRA, Université de Tours, UMR 1282, Infectiologie et Santé Publique, Nouzilly, France
| | - Yves Le Vern
- INRA, Université de Tours, UMR 1282, Infectiologie et Santé Publique, Nouzilly, France
| | | | - Nathalie Winter
- INRA, Université de Tours, UMR 1282, Infectiologie et Santé Publique, Nouzilly, France
- * E-mail:
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Liu Y, Zeng M, Liu Z. Th17 response and its regulation in inflammatory upper airway diseases. Clin Exp Allergy 2015; 45:602-12. [PMID: 25048954 DOI: 10.1111/cea.12378] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Allergic rhinitis (AR) and chronic rhinosinusitis (CRS) are two widely prevalent inflammatory diseases in the upper airways. T cell immunity has been suggested to play an important pathogenic role in many chronic inflammatory diseases including inflammatory upper airway diseases. Inappropriate CD4(+) T cell responses, especially the dysregulation of the Th1/Th2 balance leading to excessive Th1 or Th2 cell activation, have been associated with allergic rhinitis and chronic rhinosinusitis. Nevertheless, recent studies suggest that IL-17A and IL-17A-producing Th17 cell subset, a distinct pro-inflammatory CD4(+) T cell lineage, may also play an important role in the pathophysiology of inflammatory upper airway diseases. Th17 cells may promote both eosinophilic and neutrophilic inflammation in AR and CRS. In addition, a few, but accumulating evidence shows that the Th17 responses can be tightly regulated by endogenous and exogenous substances in the context of AR and CRS. This review discusses recent advances in our understanding of the expression and function of the Th17 response and its regulation in inflammatory upper airway diseases, and the perspective for future investigation and clinical utility.
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Affiliation(s)
- Y Liu
- Department of Otolaryngology-Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Memari B, Bouttier M, Dimitrov V, Ouellette M, Behr MA, Fritz JH, White JH. Engagement of the Aryl Hydrocarbon Receptor in Mycobacterium tuberculosis-Infected Macrophages Has Pleiotropic Effects on Innate Immune Signaling. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2015; 195:4479-91. [PMID: 26416282 DOI: 10.4049/jimmunol.1501141] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Accepted: 09/02/2015] [Indexed: 12/12/2022]
Abstract
Understanding the mechanisms of host macrophage responses to Mycobacterium tuberculosis is essential for uncovering potential avenues of intervention to boost host resistance to infection. Macrophage transcriptome profiling revealed that M. tuberculosis infection strongly induced the expression of several enzymes controlling tryptophan catabolism. These included IDO1 and tryptophan 2,3-dioxygenase, which catalyze the rate-limiting step in the kynurenine pathway, producing ligands for the aryl hydrocarbon receptor (AHR). The AHR and heterodimeric partners AHR nuclear translocator and RELB are robustly expressed, and AHR and RELB levels increased further during infection. Infection enhanced AHR/AHR nuclear translocator and AHR/RELB DNA binding and stimulated the expression of AHR target genes, including that encoding the inflammatory cytokine IL-1β. AHR target gene expression was further enhanced by exogenous kynurenine, and exogenous tryptophan, kynurenine, or synthetic agonist indirubin reduced mycobacterial viability. Comparative expression profiling revealed that AHR ablation diminished the expression of numerous genes implicated in innate immune responses, including several cytokines. Notably, AHR depletion reduced the expression of IL23A and IL12B transcripts, which encode subunits of IL-23, a macrophage cytokine that stimulates production of IL-22 by innate lymphoid cells. AHR directly induced IL23A transcription in human and mouse macrophages through near-upstream enhancer regions. Taken together, these findings show that AHR signaling is strongly engaged in M. tuberculosis-infected macrophages and has widespread effects on innate immune responses. Moreover, they reveal a cascade of AHR-driven innate immune signaling, because IL-1β and IL-23 stimulate T cell subsets producing IL-22, another direct target of AHR transactivation.
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Affiliation(s)
- Babak Memari
- Department of Physiology, McGill University, Montreal, Quebec H3G 1Y6, Canada
| | - Manuella Bouttier
- Department of Physiology, McGill University, Montreal, Quebec H3G 1Y6, Canada
| | - Vassil Dimitrov
- Department of Physiology, McGill University, Montreal, Quebec H3G 1Y6, Canada
| | - Marc Ouellette
- Department of Physiology, McGill University, Montreal, Quebec H3G 1Y6, Canada
| | - Marcel A Behr
- Department of Medicine, McGill University, Montreal, Quebec H3G 1Y6, Canada; Montreal General Hospital, McGill University, Montreal, Quebec H3G 1A4, Canada; McGill International TB Centre, McGill University, Montreal, Quebec H3G 1A4, Canada; Division of Infectious Diseases and Medical Microbiology, McGill University, Montreal, Quebec H3G 1A4, Canada
| | - Jorg H Fritz
- Department of Physiology, McGill University, Montreal, Quebec H3G 1Y6, Canada; Department of Microbiology and Immunology, McGill University, Montreal, Quebec H3G 0B1, Canada; and Complex Traits Group, McGill University, Montreal, Quebec H3G 0B1, Canada
| | - John H White
- Department of Physiology, McGill University, Montreal, Quebec H3G 1Y6, Canada; Department of Medicine, McGill University, Montreal, Quebec H3G 1Y6, Canada; McGill International TB Centre, McGill University, Montreal, Quebec H3G 1A4, Canada;
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35
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The role of IL-10 in microbiome-associated immune modulation and disease tolerance. Cytokine 2015; 75:291-301. [DOI: 10.1016/j.cyto.2014.11.027] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2014] [Revised: 11/20/2014] [Accepted: 11/21/2014] [Indexed: 02/06/2023]
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Pomeroy B, Sipka A, Klaessig S, Schukken Y. Monocyte-derived dendritic cells from late gestation cows have an impaired ability to mature in response to E. coli stimulation in a receptor and cytokine-mediated fashion. Vet Immunol Immunopathol 2015; 167:22-9. [DOI: 10.1016/j.vetimm.2015.06.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Revised: 06/23/2015] [Accepted: 06/29/2015] [Indexed: 12/14/2022]
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Radjabova V, Mastroeni P, Skjødt K, Zaccone P, de Bono B, Goodall JC, Chilvers ER, Juss JK, Jones DC, Trowsdale J, Barrow AD. TARM1 Is a Novel Leukocyte Receptor Complex-Encoded ITAM Receptor That Costimulates Proinflammatory Cytokine Secretion by Macrophages and Neutrophils. THE JOURNAL OF IMMUNOLOGY 2015; 195:3149-59. [PMID: 26311901 DOI: 10.4049/jimmunol.1401847] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Accepted: 07/19/2015] [Indexed: 01/22/2023]
Abstract
We identified a novel, evolutionarily conserved receptor encoded within the human leukocyte receptor complex and syntenic region of mouse chromosome 7, named T cell-interacting, activating receptor on myeloid cells-1 (TARM1). The transmembrane region of TARM1 contained a conserved arginine residue, consistent with association with a signaling adaptor. TARM1 associated with the ITAM adaptor FcRγ but not with DAP10 or DAP12. In healthy mice, TARM1 is constitutively expressed on the cell surface of mature and immature CD11b(+)Gr-1(+) neutrophils within the bone marrow. Following i.p. LPS treatment or systemic bacterial challenge, TARM1 expression was upregulated by neutrophils and inflammatory monocytes and TARM1(+) cells were rapidly recruited to sites of inflammation. TARM1 expression was also upregulated by bone marrow-derived macrophages and dendritic cells following stimulation with TLR agonists in vitro. Ligation of TARM1 receptor in the presence of TLR ligands, such as LPS, enhanced the secretion of proinflammatory cytokines by macrophages and primary mouse neutrophils, whereas TARM1 stimulation alone had no effect. Finally, an immobilized TARM1-Fc fusion protein suppressed CD4(+) T cell activation and proliferation in vitro. These results suggest that a putative T cell ligand can interact with TARM1 receptor, resulting in bidirectional signaling and raising the T cell activation threshold while costimulating the release of proinflammatory cytokines by macrophages and neutrophils.
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Affiliation(s)
- Valeria Radjabova
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom
| | - Piero Mastroeni
- Department of Veterinary Medicine, University of Cambridge, Cambridge CB3 0ES, United Kingdom
| | - Karsten Skjødt
- Department of Cancer and Inflammation, Institute for Molecular Medicine, University of Southern Denmark, DK-5000 Odense, Denmark
| | - Paola Zaccone
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom
| | - Bernard de Bono
- Centre for Health Informatics and Multiprofessional Education, University College London, London NW1 2DA, United Kingdom
| | - Jane C Goodall
- Department of Medicine, University of Cambridge, Cambridge CB2 0SP, United Kingdom; and
| | - Edwin R Chilvers
- Department of Medicine, University of Cambridge, Cambridge CB2 0SP, United Kingdom; and
| | - Jatinder K Juss
- Department of Medicine, University of Cambridge, Cambridge CB2 0SP, United Kingdom; and
| | - Des C Jones
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom
| | - John Trowsdale
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom;
| | - Alexander David Barrow
- Division of Immunology, Department of Pathology, University of Cambridge, Cambridge CB2 1QP, United Kingdom; Department of Pathology and Immunology, Washington University School of Medicine, St. Louis, MO 63110
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The resolution of inflammation: Principles and challenges. Semin Immunol 2015; 27:149-60. [PMID: 25911383 DOI: 10.1016/j.smim.2015.03.014] [Citation(s) in RCA: 258] [Impact Index Per Article: 28.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Revised: 03/27/2015] [Accepted: 03/30/2015] [Indexed: 12/11/2022]
Abstract
The concept that chemokines, cytokines and pro-inflammatory mediators act in a co-ordinated fashion to drive the initiation of the inflammatory reaction is well understood. The significance of such networks acting during the resolution of inflammation however is poorly appreciated. In recent years, specific pro-resolving mediators were discovered which activate resolution pathways to return tissues to homeostasis. These mediators are diverse in nature, and include specialized lipid mediators (lipoxins, resolvins, protectins and maresins) proteins (annexin A1, galectins) and peptides, gaseous mediators including hydrogen sulphide, a purine (adenosine), as well as neuromodulator release under the control of the vagus nerve. Functionally, they can act to limit further leukocyte recruitment, induce neutrophil apoptosis and enhance efferocytosis by macrophages. They can also switch macrophages from classical to alternatively activated cells, promote the return of non-apoptotic cells to the lymphatics and help initiate tissue repair mechanisms and healing. Within this review we highlight the essential cellular aspects required for successful tissue resolution, briefly discuss the pro-resolution mediators that drive these processes and consider potential challenges faced by researchers in the quest to discover how inflammation resolves and why chronic inflammation persists.
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Lay MK, Céspedes PF, Palavecino CE, León MA, Díaz RA, Salazar FJ, Méndez GP, Bueno SM, Kalergis AM. Human metapneumovirus infection activates the TSLP pathway that drives excessive pulmonary inflammation and viral replication in mice. Eur J Immunol 2015; 45:1680-95. [PMID: 25763996 DOI: 10.1002/eji.201445021] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2014] [Revised: 01/28/2015] [Accepted: 03/10/2015] [Indexed: 11/05/2022]
Abstract
Human metapneumovirus (hMPV) is a leading cause of acute respiratory tract infections in children and the elderly. The mechanism by which this virus triggers an inflammatory response still remains unknown. Here, we evaluated whether the thymic stromal lymphopoietin (TSLP) pathway contributes to lung inflammation upon hMPV infection. We found that hMPV infection promotes TSLP expression both in human airway epithelial cells and in the mouse lung. hMPV infection induced lung infiltration of OX40L(+) CD11b(+) DCs. Mice lacking the TSLP receptor deficient mice (tslpr(-/-) ) showed reduced lung inflammation and hMPV replication. These mice displayed a decreased number of neutrophils as well a reduction in levels of thymus and activation-regulated chemokine/CCL17, IL-5, IL-13, and TNF-α in the airways upon hMPV infection. Furthermore, a higher frequency of CD4(+) and CD8(+) T cells was found in tslpr(-/-) mice compared to WT mice, which could contribute to controlling viral spread. Depletion of neutrophils in WT and tslpr(-/-) mice decreased inflammation and hMPV replication. Remarkably, blockage of TSLP or OX40L with specific Abs reduced lung inflammation and viral replication following hMPV challenge in mice. Altogether, these results suggest that activation of the TSLP pathway is pivotal in the development of pulmonary pathology and pulmonary hMPV replication.
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Affiliation(s)
- Margarita K Lay
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Pablo F Céspedes
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Christian E Palavecino
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Miguel A León
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Rodrigo A Díaz
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Francisco J Salazar
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Gonzalo P Méndez
- Departamento de Anatomía Patológica, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Susan M Bueno
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,INSERM U1064, Nantes, France
| | - Alexis M Kalergis
- Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas, Millennium Institute on Immunology and Immunotherapy, Pontificia Universidad Católica de Chile, Santiago, Chile.,INSERM U1064, Nantes, France.,Departamento de Reumatología, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
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40
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Mattila JT, Maiello P, Sun T, Via LE, Flynn JL. Granzyme B-expressing neutrophils correlate with bacterial load in granulomas from Mycobacterium tuberculosis-infected cynomolgus macaques. Cell Microbiol 2015; 17:1085-97. [PMID: 25653138 DOI: 10.1111/cmi.12428] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2014] [Revised: 01/04/2015] [Accepted: 02/02/2015] [Indexed: 01/21/2023]
Abstract
The role of neutrophils in tuberculosis (TB), and whether neutrophils express granzyme B (grzB), a pro-apoptotic enzyme associated with cytotoxic T cells, is controversial. We examined neutrophils in peripheral blood (PB) and lung granulomas of Mycobacterium tuberculosis-infected cynomolgus macaques and humans to determine whether mycobacterial products or pro-inflammatory factors induce neutrophil grzB expression. We found large numbers of grzB-expressing neutrophils in macaque and human granulomas and these cells contained more grzB+ granules than T cells. Higher neutrophil, but not T cell, grzB expression correlated with increased bacterial load. Although unstimulated PB neutrophils lacked grzB expression, grzB expression increased upon exposure to M.tuberculosis bacilli, M.tuberculosis culture filtrate protein or lipopolysaccharide from Escherichia coli. Perforin is required for granzyme-mediated cytotoxicity by T cells, but was not observed in PB or granuloma neutrophils. Nonetheless, stimulated PB neutrophils secreted grzB as determined by enzyme-linked immunospot assays. Purified grzB was not bactericidal or bacteriostatic, suggesting secreted neutrophil grzB acts on extracellular targets, potentially enhancing neutrophil migration through extracellular matrix and regulating apoptosis or activation in other cell types. These data indicate mycobacterial products and the pro-inflammatory environment of granulomas up-regulates neutrophil grzB expression and suggests a previously unappreciated aspect of neutrophil biology in TB.
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Affiliation(s)
- Joshua T Mattila
- Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Pauline Maiello
- Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tao Sun
- Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Laura E Via
- Tuberculosis Research Section, Laboratory of Clinical Infectious Diseases, NIAID, NIH, Bethesda, MD, USA
| | - JoAnne L Flynn
- Department of Microbiology and Molecular Genetics, University of Pittsburgh, Pittsburgh, PA, USA.,Department of Immunology, University of Pittsburgh, Pittsburgh, PA, USA
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41
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Mittal SK, Roche PA. Suppression of antigen presentation by IL-10. Curr Opin Immunol 2015; 34:22-7. [PMID: 25597442 DOI: 10.1016/j.coi.2014.12.009] [Citation(s) in RCA: 190] [Impact Index Per Article: 21.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 12/19/2014] [Indexed: 12/13/2022]
Abstract
Regulated antigen presentation to immune cells determines the effectiveness of an immune response. IL-10 is an immunosuppressive cytokine that regulates immune responses by inhibiting the ability of APCs to present antigens to T cells in a variety of ways. The mechanisms of IL-10-mediated immunosuppression include interference in TLR-mediated or IFNγ-mediated dendritic cell (DC) and macrophage activation as well as direct induction of genes that suppress APC function. In this review we will discuss current studies exploring the molecular mechanisms by which IL-10 suppresses APC function.
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Affiliation(s)
- Sharad K Mittal
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States
| | - Paul A Roche
- Experimental Immunology Branch, National Cancer Institute, National Institutes of Health, Bethesda, MD, United States.
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42
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Cilfone NA, Ford CB, Marino S, Mattila JT, Gideon HP, Flynn JL, Kirschner DE, Linderman JJ. Computational modeling predicts IL-10 control of lesion sterilization by balancing early host immunity-mediated antimicrobial responses with caseation during mycobacterium tuberculosis infection. THE JOURNAL OF IMMUNOLOGY 2014; 194:664-77. [PMID: 25512604 DOI: 10.4049/jimmunol.1400734] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Although almost a third of the world's population is infected with the bacterial pathogen Mycobacterium tuberculosis, our understanding of the functions of many immune factors involved in fighting infection is limited. Determining the role of the immunosuppressive cytokine IL-10 at the level of the granuloma has proven difficult because of lesional heterogeneity and the limitations of animal models. In this study, we take an in silico approach and, through a series of virtual experiments, we predict several novel roles for IL-10 in tuberculosis granulomas: 1) decreased levels of IL-10 lead to increased numbers of sterile lesions, but at the cost of early increased caseation; 2) small increases in early antimicrobial activity cause this increased lesion sterility; 3) IL-10 produced by activated macrophages is a major mediator of early antimicrobial activity and early host-induced caseation; and 4) increasing levels of infected macrophage derived IL-10 promotes bacterial persistence by limiting the early antimicrobial response and preventing lesion sterilization. Our findings, currently only accessible using an in silico approach, suggest that IL-10 at the individual granuloma scale is a critical regulator of lesion outcome. These predictions suggest IL-10-related mechanisms that could be used as adjunctive therapies during tuberculosis.
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Affiliation(s)
- Nicholas A Cilfone
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109
| | | | - Simeone Marino
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109; and
| | - Joshua T Mattila
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219
| | - Hannah P Gideon
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219
| | - JoAnne L Flynn
- Department of Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, Pittsburgh, PA 15219
| | - Denise E Kirschner
- Department of Microbiology and Immunology, University of Michigan Medical School, Ann Arbor, MI 48109; and
| | - Jennifer J Linderman
- Department of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109;
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43
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Barrientos L, Bignon A, Gueguen C, de Chaisemartin L, Gorges R, Sandré C, Mascarell L, Balabanian K, Kerdine-Römer S, Pallardy M, Marin-Esteban V, Chollet-Martin S. Neutrophil extracellular traps downregulate lipopolysaccharide-induced activation of monocyte-derived dendritic cells. THE JOURNAL OF IMMUNOLOGY 2014; 193:5689-98. [PMID: 25339673 DOI: 10.4049/jimmunol.1400586] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Polymorphonuclear neutrophils (PMN) play a central role in inflammation and participate in its control, notably by modulating dendritic cell (DC) functions via soluble mediators or cell-cell contacts. Neutrophil extracellular traps (NETs) released by PMN could play a role in this context. To evaluate NET effects on DC maturation, we developed a model based on monocyte-derived DC (moDC) and calibrated NETs isolated from fresh human PMN. We found that isolated NETs alone had no discernable effect on moDC. In contrast, they downregulated LPS-induced moDC maturation, as shown by decreased surface expression of HLA-DR, CD80, CD83, and CD86, and by downregulated cytokine production (TNF-α, IL-6, IL-12, IL-23), with no increase in the expression of tolerogenic DC genes. Moreover, the presence of NETs during moDC maturation diminished the capacity of these moDC to induce T lymphocyte proliferation in both autologous and allogeneic conditions, and modulated CD4(+) T lymphocyte polarization by promoting the production of Th2 cytokines (IL-5 and IL-13) and reducing that of Th1 and Th17 cytokines (IFN-γ and IL-17). Interestingly, the expression and activities of the lymphoid chemokine receptors CCR7 and CXCR4 on moDC were not altered when moDC matured in the presence of NETs. Together, these findings reveal a new role for NETs in adaptive immune responses, modulating some moDC functions and thereby participating in the control of inflammation.
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Affiliation(s)
- Lorena Barrientos
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Université Paris-Sud, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Alexandre Bignon
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Laboratory of Excellence in Research on Medication and Innovative Therapeutics, 92296 Clamart, France
| | | | - Luc de Chaisemartin
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Université Paris-Sud, Faculté de Pharmacie, 92296 Châtenay-Malabry, France; Assistance Publique Hôpitaux de Paris, Groupe Hospitalier Paris Nord Val de Seine, Hôpital Bichat, Unité d'Immunologie (Auto-immunité et Hypersensibilités), 75018 Paris, France
| | - Roseline Gorges
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Université Paris-Sud, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Catherine Sandré
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Université Paris-Sud, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | | | - Karl Balabanian
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Laboratory of Excellence in Research on Medication and Innovative Therapeutics, 92296 Clamart, France
| | - Saadia Kerdine-Römer
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Université Paris-Sud, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Marc Pallardy
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Université Paris-Sud, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Viviana Marin-Esteban
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Université Paris-Sud, Faculté de Pharmacie, 92296 Châtenay-Malabry, France
| | - Sylvie Chollet-Martin
- INSERM, Unité Mixte de Recherche-S 996, "Cytokines, chimiokines et immunopathologie," Université Paris-Sud, 92296 Châtenay-Malabry and Clamart, France; Université Paris-Sud, Faculté de Pharmacie, 92296 Châtenay-Malabry, France; Assistance Publique Hôpitaux de Paris, Groupe Hospitalier Paris Nord Val de Seine, Hôpital Bichat, Unité d'Immunologie (Auto-immunité et Hypersensibilités), 75018 Paris, France
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44
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Kalyan S, Kabelitz D. When neutrophils meet T cells: Beginnings of a tumultuous relationship with underappreciated potential. Eur J Immunol 2014; 44:627-33. [DOI: 10.1002/eji.201344195] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Revised: 11/21/2013] [Accepted: 01/14/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Shirin Kalyan
- Institute of Immunology; University of Kiel; Kiel Germany
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