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Liang Y, Shen Y, Kuang L, Zhou G, Zhang L, Zhong X, Zhang J, Liu J. Cigarette smoke exposure promotes differentiation of CD4 + T cells toward Th17 cells by CD40-CD40L costimulatory pathway in mice. Int J Chron Obstruct Pulmon Dis 2018; 13:959-968. [PMID: 29606863 PMCID: PMC5868633 DOI: 10.2147/copd.s155754] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Purpose This study aimed to investigate the impact of cigarette smoke exposure upon CD40–CD40L ligation between bone marrow-derived dendritic cells (BMDCs)and CD4+T cells, and to examine the effects of cigarette smoke exposure upon differentiation of CD4+T cells toward Th17 cells through blockade of CD40-CD40L pathway in mice. Methods The study was processed in vivo and in vitro. In vivo, Th17 cells, CD40, interleukin (IL)-17A, and IL-27 in the lung tissues were quantified and compared between mice with and without cigarette smoke exposure. In vitro, Th17 cells, IL-17A, and IL-27 yielded by multiple cell cultivations in which BMDCs from mice with or without cigarette smoke exposure were fostered with CD4+ T cells from healthy mice spleens in the presence of antagonistic CD40 antibody and/or cigarette smoke extract (CSE) were quantified and compared. The flow cytometry was used to detect expressions of Th17 cells and CD40, and the liquid chip was used to detect levels of IL-17A and IL-27. Results Both in vivo exposed to cigarette smoke and in vitro to CSE, CD40 expressions noticeably escalated on the surfaces of BMDCs. The presence of Th17 cells, IL-17A, and IL-27 in the lung tissues prominently increased in mice exposed to cigarette smoke. The in vitro culture of CD4+ T cells and BMDCs significantly enhanced the differentiation of CD4+ T cells toward Th17 cells and secretions of IL-17A and IL-27 in the case that BMDCs were produced from mice exposed to cigarette smoke or the culture occurred in the presence of CSE. Usage of antagonistic CD40 antibody evidently reduced the number of Th17 cells, IL-17A, and IL-27 that increased due to cigarette smoke exposure. Conclusion The CD40–CD40L ligation is associated with the quantities of Th17 cells and relevant cytokines in the context of cigarette smoke exposure. Reducing the number of Th17 cells via the usage of antagonistic CD40 antibody can be an inspiration for pursuing a novel therapeutic target for immune inflammation in COPD.
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Affiliation(s)
- Yi Liang
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University
| | - Ying Shen
- Division of General Practice, General Practice School of Guangxi Medical University, Nanning, Guangxi, People's Republic of China
| | - Liangjian Kuang
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University
| | - Guang Zhou
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University
| | - Longju Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University
| | - Xiaoning Zhong
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University
| | - Jianquan Zhang
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University
| | - Jifeng Liu
- Department of Respiratory Medicine, The First Affiliated Hospital of Guangxi Medical University
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202
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Colodenco D, Palomares O, Celis C, Kaplan A, Domingo C. Moving toward consensus on diagnosis and management of severe asthma in adults. Curr Med Res Opin 2018; 34:387-399. [PMID: 28906154 DOI: 10.1080/03007995.2017.1380617] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Asthma is a considerable health problem with an increasing global prevalence. The burden of severe asthma is expected to notably increase in the following years. Some misleading concepts that sometimes appear in the literature can drive the physician responsible for a patient's management to make incorrect decisions. Furthermore, some of the concepts that appear in the literature and in the guidelines may not be clear to understand, follow or adapt to regional and local realities. This could again drive the physicians responsible for a patient's management to make incorrect clinical judgments. In this article, we review the definition, prevalence and immunopathology of severe asthma, describe the asthma phenotypes, clinical features and comorbidities, the diagnosis of severe asthma and personalized asthma treatment. At the end, we offer a treatment approach based on literature publications, personalized medicine and marketed biologic treatment options.
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Affiliation(s)
- Daniel Colodenco
- a Pulmonology , Hospital De Rehabilitación Respiratoria María Ferrer , Buenos Aires , Argentina
| | - Oscar Palomares
- b Department of Biochemistry and Molecular Biology , School of Chemistry, Complutense University of Madrid , Madrid , Spain
| | - Carlos Celis
- c Pulmonary Unit, Internal Medicine Department , Hospital Universitario San Ignacio , Bogota , Colombia
| | - Alan Kaplan
- d University of Toronto , Thornhill , Ontario , Canada
| | - Christian Domingo
- e Servei de Pneumologia , Corporació Sanitària Parc Taulí , Barcelona , Spain
- f Department of Medicine , Universitat Autònoma de Barcelona (UAB) , Barcelona , Spain
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203
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The TLR9 agonist MGN1703 triggers a potent type I interferon response in the sigmoid colon. Mucosal Immunol 2018; 11:449-461. [PMID: 28766555 PMCID: PMC5796873 DOI: 10.1038/mi.2017.59] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2017] [Accepted: 05/25/2017] [Indexed: 02/04/2023]
Abstract
Toll-like receptor 9 (TLR9) agonists are being developed for treatment of colorectal and other cancers, yet the impact of these drugs on human intestines remains unknown. This, together with the fact that there are additional potential indications for TLR9 agonist therapy (e.g., autoimmune and infectious diseases), led us to investigate the impact of MGN1703 (Lefitolimod) on intestinal homeostasis and viral persistence in HIV-positive individuals. Colonic sigmoid biopsies were collected (baseline and week four) from 11 HIV+ individuals on suppressive antiretroviral therapy, who received MGN1703 (60 mg s.c.) twice weekly for 4 weeks in a single-arm, phase 1b/2a study. Within sigmoid mucosa, global transcriptomic analyses revealed 248 modulated genes (false discovery rate<0.05) including many type I interferon (IFN)-stimulated genes. MGN1703 increased the frequencies of cells exhibiting MX1 (P=0.001) and ISG15 (P=0.014) protein expression. No changes were observed in neutrophil infiltration (myeloperoxidase; P=0.97). No systematic effect on fecal microbiota structure was observed (analysis of similarity Global R=-0.105; P=0.929). TLR9 expression at baseline was inversely proportional to the change in integrated HIV DNA during MGN1703 treatment (P=0.020). In conclusion, MGN1703 induced a potent type I IFN response, without a concomitant general inflammatory response, in the intestines.
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204
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Živković I, Petrović R, Arsenović-Ranin N, Petrušić V, Minić R, Bufan B, Popović O, Leposavić G. Sex bias in mouse humoral immune response to influenza vaccine depends on the vaccine type. Biologicals 2018; 52:18-24. [PMID: 29426673 DOI: 10.1016/j.biologicals.2018.01.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2017] [Revised: 01/30/2018] [Accepted: 01/31/2018] [Indexed: 10/18/2022] Open
Abstract
The study explored influence of biological sex on development of humoral immune response to seasonal trivalent whole inactivated virus (WIV) and split virus (SV) influenza vaccines in outbred Swiss mouse model. To this end, mice of both sexes were immunized with WIV (WIV mice) and SV vaccines (SV mice) and examined for specific antibody response. Irrespective of sex, total IgG and neutralizing antibody responses to distinct virus strains were weaker in SV than in WIV mice. In WIV mice of both sexes, irrespective of strain specificity, IgG isotype response was dominated by IgG2a antibodies, while in SV mice nearly equal representation of IgG2a and IgG1 antibodies was found. The analyses of sex differences showed higher titers of H1N1-specific and both H1N1- and H3N2-specific total IgG and neutralizing antibodies in female WIV and SV mice, respectively. Additionally, sexual dimorphism in IgG subclass profile depended on vaccine type. Specifically, compared with males, in females WIV shifted IgG2a/IgG1 antibody ratio towards IgG2a isotype on the account of weaker IgG1 response, whereas in SV mice, irrespective of virus strain, IgG2a and IgG1 isotypes were equally represented in both sexes. These findings indicate the vaccine type-dependent sex bias in antibody response to inactivated influenza vaccines.
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Affiliation(s)
- Irena Živković
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", Belgrade, Serbia
| | - Raisa Petrović
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", Belgrade, Serbia
| | - Nevena Arsenović-Ranin
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Vladimir Petrušić
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", Belgrade, Serbia
| | - Rajna Minić
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", Belgrade, Serbia
| | - Biljana Bufan
- Department of Microbiology and Immunology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Olga Popović
- Immunology Research Centre "Branislav Janković", Institute of Virology, Vaccines and Sera "Torlak", Belgrade, Serbia
| | - Gordana Leposavić
- Department of Physiology, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia.
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205
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Lee YJ, Lee JY, Jang YH, Seo SU, Chang J, Seong BL. Non-specific Effect of Vaccines: Immediate Protection against Respiratory Syncytial Virus Infection by a Live Attenuated Influenza Vaccine. Front Microbiol 2018; 9:83. [PMID: 29445364 PMCID: PMC5797773 DOI: 10.3389/fmicb.2018.00083] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 01/12/2018] [Indexed: 01/21/2023] Open
Abstract
The non-specific effects (NSEs) of vaccines have been discussed for their potential long-term beneficial effects beyond direct protection against a specific pathogen. Cold-adapted, live attenuated influenza vaccine (CAIV) induces local innate immune responses that provide a broad range of antiviral immunity. Herein, we examined whether X-31ca, a donor virus for CAIVs, provides non-specific cross-protection against respiratory syncytial virus (RSV). The degree of RSV replication was significantly reduced when X-31ca was administered before RSV infection without any RSV-specific antibody responses. The vaccination induced an immediate release of cytokines and infiltration of leukocytes into the respiratory tract, moderating the immune perturbation caused by RSV infection. The potency of protection against RSV challenge was significantly reduced in TLR3-/- TLR7-/- mice, confirming that the TLR3/7 signaling pathways are necessary for the observed immediate and short-term protection. The results suggest that CAIVs provide short-term, non-specific protection against genetically unrelated respiratory pathogens. The additional benefits of CAIVs in mitigating acute respiratory infections for which vaccines are not yet available need to be assessed in future studies.
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Affiliation(s)
- Young J. Lee
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Jeong Y. Lee
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, South Korea
| | - Yo H. Jang
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
| | - Sang-Uk Seo
- Department of Biomedical Sciences, Wide River Institute of Immunology, Seoul National University College of Medicine, Seoul, South Korea
| | - Jun Chang
- Graduate School of Pharmaceutical Sciences, Ewha Womans University, Seoul, South Korea
- Vaccine Translational Research Center, Yonsei University, Seoul, South Korea
| | - Baik L. Seong
- Department of Biotechnology, College of Life Science and Biotechnology, Yonsei University, Seoul, South Korea
- Vaccine Translational Research Center, Yonsei University, Seoul, South Korea
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206
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Marsh LM, Jandl K, Grünig G, Foris V, Bashir M, Ghanim B, Klepetko W, Olschewski H, Olschewski A, Kwapiszewska G. The inflammatory cell landscape in the lungs of patients with idiopathic pulmonary arterial hypertension. Eur Respir J 2018; 51:51/1/1701214. [PMID: 29371380 PMCID: PMC6383570 DOI: 10.1183/13993003.01214-2017] [Citation(s) in RCA: 78] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 10/15/2017] [Indexed: 12/20/2022]
Abstract
Increasing evidence points towards an inflammatory component underlying pulmonary hypertension. However, the conclusive characterisation of multiple inflammatory cell populations in the lung is challenging due to the complexity of marker specificity and tissue inaccessibility. We used an unbiased computational flow cytometry approach to delineate the inflammatory landscape of idiopathic pulmonary arterial hypertension (IPAH) and healthy donor lungs. Donor and IPAH samples were discriminated clearly using principal component analysis to reduce the multidimensional data obtained from single-cell flow cytometry analysis. In IPAH lungs, the predominant CD45+ cell type switched from neutrophils to CD3+ T-cells, with increases in CD4+, CD8+ and γδT-cell subsets. Additionally, diversely activated classical myeloid-derived dendritic cells (CD14−HLA-DR+CD11c+CD1a+/−) and nonclassical plasmacytoid dendritic cells (pDCs; CD14−CD11c−CD123+HLA-DR+), together with mast cells and basophils, were more abundant in IPAH samples. We describe, for the first time, the presence and regulation of two cell types in IPAH, γδT-cells and pDCs, which link innate and adaptive immunity. With our high-throughput flow cytometry with multidimensional dataset analysis, we have revealed the interactive interplay between multiple inflammatory cells is a crucial part of their integrative network. The identification of γδT-cells and pDCs in this disease potentially provides a missing link between IPAH, autoimmunity and inflammation. Computational flow cytometry details the complex inflammatory cell landscape in patients with pulmonary hypertensionhttp://ow.ly/rjFZ30g1tew
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Affiliation(s)
- Leigh M Marsh
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Katharina Jandl
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Gabriele Grünig
- Dept of Environmental Medicine and Medicine, NYU School of Medicine, New York, NY, USA
| | - Vasile Foris
- Division of Pulmonology, Dept of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Mina Bashir
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria
| | - Bahil Ghanim
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria.,Division of Thoracic Surgery, Dept of Surgery, Medical University of Vienna, Vienna, Austria
| | - Walter Klepetko
- Division of Thoracic Surgery, Dept of Surgery, Medical University of Vienna, Vienna, Austria
| | - Horst Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria.,Division of Pulmonology, Dept of Internal Medicine, Medical University of Graz, Graz, Austria
| | - Andrea Olschewski
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria.,Institute of Physiology, Medical University of Graz, Graz, Austria
| | - Grazyna Kwapiszewska
- Ludwig Boltzmann Institute for Lung Vascular Research, Graz, Austria.,Institute of Physiology, Medical University of Graz, Graz, Austria
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207
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Role of the chemokine receptors CXCR3, CXCR4 and CCR7 in the intramuscular recruitment of plasmacytoid dendritic cells in dermatomyositis. J Neuroimmunol 2018; 319:142-148. [PMID: 29366593 DOI: 10.1016/j.jneuroim.2018.01.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2017] [Revised: 10/13/2017] [Accepted: 01/08/2018] [Indexed: 12/18/2022]
Abstract
To explore the possible mechanism implicated in the recruitment of plasmacytoid dendritic cells (pDCs), we investigated the expression of the chemokine receptors CXCR3, CXCR4, and CCR7 on intramuscular and circulating pDCs from patients with dermatomyositis (DM). Using immunohistochemistry, preferential expression of CXCR3, CXCR4 and CCR7 was identified in the perivascular inflammatory infiltrates within the perimysium in DM muscle. Western-blot analysis showed marked up-regulation of expression of CXCR3, CXCR4 and CCR7 in muscle homogenate from patients with DM compared with that in non-diseased controls. Co-localization of CD303+ pDCs with these chemokine receptors was further examined by double immunofluorescence staining, which showed extensive co-localization of CD303 with CXCR3/CXCR4/CCR7 in DM biopsies. Flow cytometry was then used to investigate the proportion of pDCs among the total PBMCs and the expression of CXCR3, CXCR4 and CCR7 on circulating pDCs. The proportion of CD123+CD303+ pDCs in peripheral blood from DM patients was markedly decreased compared to that from polymyositis (PM) patients and normal controls. Significantly increased expression of CXCR3, but not CXCR4 or CCR7, was further identified on circulating pDCs in DM. Correlation analysis showed that the expression of CXCR3 correlated inversely with the frequency of pDCs in peripheral blood. Our findings indicate that the chemokine receptors, CXCR3, CXCR4 and CCR7 may be involved in the recruitment of pDCs from peripheral blood to muscle tissues in DM via different mechanisms, and in which CXCR3 may play an important role under DM conditions.
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208
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Trautmann A. From kinetics and cellular cooperations to cancer immunotherapies. Oncotarget 2018; 7:44779-44789. [PMID: 27014912 PMCID: PMC5190134 DOI: 10.18632/oncotarget.8242] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 03/04/2016] [Indexed: 12/26/2022] Open
Abstract
In this review will be underlined two simple ideas of potential interest for the design of cancer immunotherapies. One concerns the importance of kinetics, with the key notion that a single cause may trigger two opposite effects with different kinetics. The importance of this phenomenon will be underlined in neurobiology, transcription networks and the immune system. The second idea is that efficient immune responses have been selected against pathogens, throughout evolution. They are never due to a single cell type, but always require multiple, complex cellular cooperations. One cannot recognize this fact and persist in the presently dominant T-cell centered view of cancer immunotherapies. Suggestions will be made to incorporate these simple ideas for improving these therapies.
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Affiliation(s)
- Alain Trautmann
- INSERM, U1016, Institut Cochin, Paris, France.,CNRS, UMR8104, Paris, France.,Université Paris Descartes, Sorbonne Paris Cité, Paris, France.,Equipe Labellisée "Ligue contre le Cancer", Paris, France
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209
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Leleux JA, Pradhan P, Roy K. Biophysical Attributes of CpG Presentation Control TLR9 Signaling to Differentially Polarize Systemic Immune Responses. Cell Rep 2017; 18:700-710. [PMID: 28099848 DOI: 10.1016/j.celrep.2016.12.073] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/13/2016] [Accepted: 12/22/2016] [Indexed: 01/02/2023] Open
Abstract
It is currently unknown whether and how mammalian pathogen recognition receptors (PRRs) respond to biophysical patterns of pathogen-associated molecular danger signals. Using synthetic pathogen-like particles (PLPs) that mimic physical properties of bacteria or large viruses, we have discovered that the quality and quantity of Toll-like receptor 9 (TLR9) signaling by CpG in mouse dendritic cells (mDCs) are uniquely dependent on biophysical attributes; specifically, the surface density of CpG and size of the presenting PLP. These physical patterns control DC programming by regulating the kinetics and magnitude of MyD88-IRAK4 signaling, NF-κB-driven responses, and STAT3 phosphorylation, which, in turn, controls differential T cell responses and in vivo immune polarization, especially T helper 1 (Th1) versus T helper 2 (Th2) antibody responses. Our findings suggest that innate immune cells can sense and respond not only to molecular but also pathogen-associated physical patterns (PAPPs), broadening the tools for modulating immunity and helping to better understand innate response mechanisms to pathogens and develop improved vaccines.
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Affiliation(s)
- Jardin A Leleux
- The Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory, The Parker H. Petit Institute for Bioengineering and Biosciences, Center for ImmunoEngineering at Georgia Tech, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Pallab Pradhan
- The Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory, The Parker H. Petit Institute for Bioengineering and Biosciences, Center for ImmunoEngineering at Georgia Tech, Georgia Institute of Technology, Atlanta, GA 30332, USA.
| | - Krishnendu Roy
- The Wallace H. Coulter Department of Biomedical Engineering at Georgia Tech and Emory, The Parker H. Petit Institute for Bioengineering and Biosciences, Center for ImmunoEngineering at Georgia Tech, Georgia Institute of Technology, Atlanta, GA 30332, USA.
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210
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Alculumbre SG, Saint-André V, Di Domizio J, Vargas P, Sirven P, Bost P, Maurin M, Maiuri P, Wery M, Roman MS, Savey L, Touzot M, Terrier B, Saadoun D, Conrad C, Gilliet M, Morillon A, Soumelis V. Diversification of human plasmacytoid predendritic cells in response to a single stimulus. Nat Immunol 2017; 19:63-75. [PMID: 29203862 DOI: 10.1038/s41590-017-0012-z] [Citation(s) in RCA: 99] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Accepted: 11/08/2017] [Indexed: 12/11/2022]
Abstract
Innate immune cells adjust to microbial and inflammatory stimuli through a process termed environmental plasticity, which links a given individual stimulus to a unique activated state. Here, we report that activation of human plasmacytoid predendritic cells (pDCs) with a single microbial or cytokine stimulus triggers cell diversification into three stable subpopulations (P1-P3). P1-pDCs (PD-L1+CD80-) displayed a plasmacytoid morphology and specialization for type I interferon production. P3-pDCs (PD-L1-CD80+) adopted a dendritic morphology and adaptive immune functions. P2-pDCs (PD-L1+CD80+) displayed both innate and adaptive functions. Each subpopulation expressed a specific coding- and long-noncoding-RNA signature and was stable after secondary stimulation. P1-pDCs were detected in samples from patients with lupus or psoriasis. pDC diversification was independent of cell divisions or preexisting heterogeneity within steady-state pDCs but was controlled by a TNF autocrine and/or paracrine communication loop. Our findings reveal a novel mechanism for diversity and division of labor in innate immune cells.
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Affiliation(s)
- Solana G Alculumbre
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,INSERM U932, Immunity and Cancer, Paris, France
| | - Violaine Saint-André
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,CNRS UMR 3244, ncRNA, Epigenetic, and Genome Fluidity, Université Pierre et Marie Curie, Paris, France
| | - Jeremy Di Domizio
- Department of Dermatology, University Hospital CHUV, Lausanne, Switzerland
| | - Pablo Vargas
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,CNRS UMR144, Paris, France
| | - Philemon Sirven
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,INSERM U932, Immunity and Cancer, Paris, France
| | - Pierre Bost
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,INSERM U932, Immunity and Cancer, Paris, France.,Department of Biology, Ecole Normale Supérieure, PSL Research University, Paris, France
| | - Mathieu Maurin
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,INSERM U932, Immunity and Cancer, Paris, France
| | - Paolo Maiuri
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,IFOM Foundation, Institute FIRC of Molecular Oncology, Milan, Italy
| | - Maxime Wery
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,CNRS UMR 3244, ncRNA, Epigenetic, and Genome Fluidity, Université Pierre et Marie Curie, Paris, France
| | - Mabel San Roman
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,INSERM U932, Immunity and Cancer, Paris, France
| | - Léa Savey
- UMR7211 and Inflammation-Immunopathology-Biotherapy Departement (DHU i2B), Sorbonne Universités, UPMC Université de Paris, Paris, France.,Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Hospitalier Pitié Salpétrière, Department of Internal Medicine and Clinical Immunology, National Reference Center for Autoimmune and Systemic Diseases, Paris, France
| | | | - Benjamin Terrier
- Department of Internal Medicine, National Referral Center for Rare Autoimmune and Systemic Diseases, Cochin Hospital, AP-HP, Université Paris Descartes, Paris, France
| | - David Saadoun
- UMR7211 and Inflammation-Immunopathology-Biotherapy Departement (DHU i2B), Sorbonne Universités, UPMC Université de Paris, Paris, France.,Assistance Publique-Hôpitaux de Paris (AP-HP), Groupe Hospitalier Pitié Salpétrière, Department of Internal Medicine and Clinical Immunology, National Reference Center for Autoimmune and Systemic Diseases, Paris, France
| | - Curdin Conrad
- Department of Dermatology, University Hospital CHUV, Lausanne, Switzerland
| | - Michel Gilliet
- Department of Dermatology, University Hospital CHUV, Lausanne, Switzerland
| | - Antonin Morillon
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France.,CNRS UMR 3244, ncRNA, Epigenetic, and Genome Fluidity, Université Pierre et Marie Curie, Paris, France
| | - Vassili Soumelis
- Institut Curie, Centre de Recherche, PSL Research University, Paris, France. .,INSERM U932, Immunity and Cancer, Paris, France. .,CIC IGR-Curie 1428, Paris, France.
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211
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Maldonado S, Fitzgerald-Bocarsly P. Antifungal Activity of Plasmacytoid Dendritic Cells and the Impact of Chronic HIV Infection. Front Immunol 2017; 8:1705. [PMID: 29255464 PMCID: PMC5723005 DOI: 10.3389/fimmu.2017.01705] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Accepted: 11/20/2017] [Indexed: 01/10/2023] Open
Abstract
Due to the effectiveness of combined antiretroviral therapy, people living with HIV can control viral replication and live longer lifespans than ever. However, HIV-positive individuals still face challenges to their health and well-being, including dysregulation of the immune system resulting from years of chronic immune activation, as well as opportunistic infections from pathogenic fungi. This review focuses on one of the key players in HIV immunology, the plasmacytoid dendritic cell (pDC), which links the innate and adaptive immune response and is notable for being the body’s most potent producer of type-I interferons (IFNs). During chronic HIV infection, the pDC compartment is greatly dysregulated, experiencing a substantial depletion in number and compromise in function. This immune dysregulation may leave patients further susceptible to opportunistic infections. This is especially important when considering a new role for pDCs currently emerging in the literature: in addition to their role in antiviral immunity, recent studies suggest that pDCs also play an important role in antifungal immunity. Supporting this new role, pDCs express C-type lectin receptors including dectin-1, dectin-2, dectin-3, and mannose receptor, and toll-like receptors-4 and -9 that are involved in recognition, signaling, and response to a wide variety of fungal pathogens, including Aspergillus fumigatus, Cryptococcus neoformans, Candida albicans, and Pneumocystis jirovecii. Accordingly, pDCs have been demonstrated to recognize and respond to certain pathogenic fungi, measured via activation, cytokine production, and fungistatic activity in vitro, while in vivo mouse models indicated a strikingly vital role for pDCs in survival against pulmonary Aspergillus challenge. Here, we discuss the role of the pDC compartment and the dysregulation it undergoes during chronic HIV infection, as well as what is known so far about the role and mechanisms of pDC antifungal activity.
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Affiliation(s)
- Samuel Maldonado
- Rutgers School of Graduate Studies, Newark, NJ, United States.,Department of Pathology and Laboratory Medicine, New Jersey Medical School, Newark, NJ, United States
| | - Patricia Fitzgerald-Bocarsly
- Rutgers School of Graduate Studies, Newark, NJ, United States.,Department of Pathology and Laboratory Medicine, New Jersey Medical School, Newark, NJ, United States
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212
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Priya SP, Sakinah S, Sharmilah K, Hamat RA, Sekawi Z, Higuchi A, Ling MP, Nordin SA, Benelli G, Kumar SS. Leptospirosis: Molecular trial path and immunopathogenesis correlated with dengue, malaria and mimetic hemorrhagic infections. Acta Trop 2017; 176:206-223. [PMID: 28823908 DOI: 10.1016/j.actatropica.2017.08.007] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 08/03/2017] [Accepted: 08/04/2017] [Indexed: 12/12/2022]
Abstract
Immuno-pathogenesis of leptospirosis can be recounted well by following its trail path from entry to exit, while inducing disastrous damages in various tissues of the host. Dysregulated, inappropriate and excessive immune responses are unanimously blamed in fatal leptospirosis. The inherent abilities of the pathogen and inabilities of the host were debated targeting the severity of the disease. Hemorrhagic manifestation through various mechanisms leading to a fatal end is observed when this disease is unattended. The similar vascular destructions and hemorrhage manifestations are noted in infections with different microbes in endemic areas. The simultaneous infection in a host with more than one pathogen or parasite is referred as the coinfection. Notably, common endemic infections such as leptospirosis, dengue, chikungunya, and malaria, harbor favorable environments to flourish in similar climates, which is aggregated with stagnated water and aggravated with the poor personal and environmental hygiene of the inhabitants. These factors aid the spread of pathogens and parasites to humans and potential vectors, eventually leading to outbreaks of public health relevance. Malaria, dengue and chikungunya need mosquitoes as vectors, in contrast with leptospirosis, which directly invades human, although the environmental bacterial load is maintained through other mammals, such as rodents. The more complicating issue is that infections by different pathogens exhibiting similar symptoms but require different treatment management. The current review explores different pathogens expressing specific surface proteins and their ability to bind with array of host proteins with or without immune response to enter into the host tissues and their ability to evade the host immune responses to invade and their affinity to certain tissues leading to the common squeal of hemorrhage. Furthermore, at the host level, the increased susceptibility and inability of the host to arrest the pathogens' and parasites' spread in different tissues, various cytokines accumulated to eradicate the microorganisms and their cellular interactions, the antibody dependent defense and the susceptibility of individual organs bringing the manifestation of the diseases were explored. Lastly, we provided a discussion on the immune trail path of pathogenesis from entry to exit to narrate the similarities and dissimilarities among various hemorrhagic fevers mentioned above, in order to outline future possibilities of prevention, diagnosis, and treatment of coinfections, with special reference to endemic areas.
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213
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Kim YI, Lee BR, Cheon JH, Kwon BE, Kweon MN, Ko HJ, Chang SY. Compensatory roles of CD8+ T cells and plasmacytoid dendritic cells in gut immune regulation for reduced function of CD4+ Tregs. Oncotarget 2017; 7:10947-61. [PMID: 26908454 PMCID: PMC4905450 DOI: 10.18632/oncotarget.7510] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Accepted: 02/05/2016] [Indexed: 01/23/2023] Open
Abstract
CD4+ Tregs need to migrate from the mucosal periphery into the draining lymph node via CCR7 to exert their suppressive effects. In this study, we investigated whether CCR7 deficiency resulted in failure of immune suppression in 2% dextran sulfate sodium-induced colitis. Unexpectedly, intestinal inflammation was not exacerbated in the absence of CCR7. Expression of IL-10, a representative suppressive cytokine, was enhanced in CCR7KO CD8+ T cells. Colon CCR7KO CD8+ T cells reduced the activation of CD4+ T cells. Depletion of CD8+ T cells using anti-CD8 antibody exacerbated colitis in CCR7KO mice. Plasmacytoid dendritic cell numbers were also slightly increased during intestinal inflammation in the absence of CCR7, and the depletion of those cells exacerbated DSS-induced colitis in CCR7KO mice. These results suggest that CD8+ T cells and plasmacytoid dendritic cells have compensatory roles in immune regulation in the gut for impaired function of CD4+ Tregs.
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Affiliation(s)
- Young-In Kim
- College of Pharmacy, Ajou University, Suwon, Korea
| | - Bo-Ra Lee
- College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - Jae-Hee Cheon
- Department of Internal Medicine and Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - Bo-Eun Kwon
- College of Pharmacy, Kangwon National University, Chuncheon, Korea
| | - Mi-Na Kweon
- Mucosal Immunology Laboratory, Department of Convergence Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Hyun-Jeong Ko
- College of Pharmacy, Kangwon National University, Chuncheon, Korea
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214
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Ainola M, Porola P, Takakubo Y, Przybyla B, Kouri VP, Tolvanen TA, Hänninen A, Nordström DC. Activation of plasmacytoid dendritic cells by apoptotic particles - mechanism for the loss of immunological tolerance in Sjögren's syndrome. Clin Exp Immunol 2017; 191:301-310. [PMID: 29105068 DOI: 10.1111/cei.13077] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/31/2017] [Indexed: 01/03/2023] Open
Abstract
Sjögren's syndrome (SS) is a common autoimmune disease targeting salivary and lacrimal glands. It is strongly female-dominant, characterized by low oestrogen levels combined with a local intracrine dihydrotestosterone defect. We hypothesized that these hormonal deficits lead to increased apoptosis of the epithelial cells and plasmacytoid dendritic cell (pDC)-mediated proinflammatory host responses. Expression of Toll-like receptors (TLRs)-7 and -9 and cytokine profiles was studied in pDCs treated with apoptotic particles collected in consecutive centrifugation steps of media from apoptotic cells. Expression and localization of SS autoantigens in these particles was also analysed. Furthermore, the effects of sex steroids were studied in pDCs cultured with several concentrations of dihydrotestosterone and 17-β-oestradiol, and in saliva of patient treated with dehydroepiandrosterone. Apoptosis of the epithelial cells led to cleavage and translocation of SS-autoantigens, α-fodrin and SS-A, into apoptotic particles. The apoptosis-induced apoptotic particles also contained another SS-autoantigen, hy1-RNA. These particles were internalized by pDCs in a size-dependent manner and affected TLR-7 and -9 expression and the production of proinflammatory cytokines. The analysed androgens protected cells from apoptosis, influenced redistribution of autoantigens and diminished the apoptotic particle-stimulated increase of the TLRs in pDCs. Our findings suggest that the formation of apoptotic particles may play a role in loss of immune tolerance, manifested by production of autoantibodies and the onset of autoinflammation in SS.
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Affiliation(s)
- M Ainola
- Department of Medicine, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland
| | - P Porola
- Department of Medicine, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland
| | - Y Takakubo
- Department of Orthopaedic Surgery, Yamagata University, Yamagata, Japan
| | - B Przybyla
- Hematology and Cancer Center, Helsinki University Central Hospital, Helsinki, Finland
| | - V P Kouri
- Department of Medicine, Clinicum, University of Helsinki, and Helsinki University Central Hospital, Helsinki, Finland
| | - T A Tolvanen
- Department of Pathology, University of Helsinki, Helsinki, Finland
| | - A Hänninen
- Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland
| | - D C Nordström
- Department of Internal Medicine and Rehabilitation, Helsinki University Central Hospital, and University of Helsinki, Helsinki, Finland
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215
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Chen J, Rénia L, Ginhoux F. Constructing cell lineages from single-cell transcriptomes. Mol Aspects Med 2017; 59:95-113. [PMID: 29107741 DOI: 10.1016/j.mam.2017.10.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 10/23/2017] [Accepted: 10/25/2017] [Indexed: 12/25/2022]
Abstract
Advances in single-cell RNA-sequencing have helped reveal the previously underappreciated level of cellular heterogeneity present during cellular differentiation. A static snapshot of single-cell transcriptomes provides a good representation of the various stages of differentiation as differentiation is rarely synchronized between cells. Data from numerous single-cell analyses has suggested that cellular differentiation and development can be conceptualized as continuous processes. Consequently, computational algorithms have been developed to infer lineage relationships between cell types and construct developmental trajectories along which cells are re-ordered such that similarity between successive cell pairs is maximized. Here, we compare and contrast the existing computational methods, and illustrate how they may be applied to build mouse myeloid progenitor lineages from massively parallel RNA single-cell sequencing data.
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Affiliation(s)
- Jinmiao Chen
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore.
| | - Laurent Rénia
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
| | - Florent Ginhoux
- Singapore Immunology Network (SIgN), A*STAR, 8A Biomedical Grove, Immunos Building, Level 4, Singapore 138648, Singapore
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216
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Manthey H, Zernecke A. Dendritic cells in atherosclerosis: Functions in immune regulation and beyond. Thromb Haemost 2017; 106:772-8. [DOI: 10.1160/th11-05-0296] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2011] [Accepted: 08/02/2011] [Indexed: 12/15/2022]
Abstract
SummaryChronic inflammation drives the development of atherosclerosis. Dendritic cells (DCs) are known as central mediators of adaptive immune responses and the development of immunological memory and tolerance. DCs are present in non-diseased arteries, and accumulate within atherosclerotic lesions where they can be localised in close vicinity to T cells. Recent work has revealed important functions of DCs in regulating immune mechanisms in atherogenesis, and vaccination strategies using DCs have been explored for treatment of disease. However, in line with a phenotypical and functional overlap with plaque macrophages vascular DCs were also identified to engulf lipids, thus contributing to lipid burden in the vessel wall and initiation of lesion growth. Furthermore, a function of DCs in regulating cholesterol homeostasis has been revealed. Finally, phenotypically distinct plasmacytoid dendritic cells (pDCs) have been identified within atherosclerotic lesions. This review will dissect the multifaceted contribution of DCs and pDCs to the initiation and progression of atherosclerosis and the experimental approaches utilising DCs in therapeutic vaccination strategies.
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217
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Michlmayr D, Andrade P, Gonzalez K, Balmaseda A, Harris E. CD14 +CD16 + monocytes are the main target of Zika virus infection in peripheral blood mononuclear cells in a paediatric study in Nicaragua. Nat Microbiol 2017; 2:1462-1470. [PMID: 28970482 PMCID: PMC5997390 DOI: 10.1038/s41564-017-0035-0] [Citation(s) in RCA: 146] [Impact Index Per Article: 20.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Accepted: 09/01/2017] [Indexed: 01/13/2023]
Abstract
The recent Zika pandemic in the Americas is linked to congenital birth defects and Guillain-Barré syndrome. White blood cells (WBCs) play an important role in host immune responses early in arboviral infection. Infected WBCs can also function as 'Trojan horses' and carry viruses into immune-sheltered spaces, including the placenta, testes and brain. Therefore, defining which WBCs are permissive to Zika virus (ZIKV) is critical. Here, we analyse ZIKV infectivity of peripheral blood mononuclear cells (PBMCs) in vitro and from Nicaraguan Zika patients and show CD14+CD16+ monocytes are the main target of infection, with ZIKV replication detected in some dendritic cells. The frequency of CD14+ monocytes was significantly decreased, while the CD14+CD16+ monocyte population was significantly expanded during ZIKV infection compared to uninfected controls. Viral RNA was detected in PBMCs from all patients, but in serum from only a subset, suggesting PBMCs may be a reservoir for ZIKV. In Zika patients, the frequency of infected cells was lower but the percentage of infected CD14+CD16+ monocytes was significantly higher compared to dengue cases. The gene expression profile in monocytes isolated from ZIKV- and dengue virus-infected patients was comparable, except for significant differences in interferon-γ, CXCL12, XCL1, interleukin-6 and interleukin-10 levels. Thus, our study provides a detailed picture of the innate immune profile of ZIKV infection and highlights the important role of monocytes, and CD14+CD16+ monocytes in particular.
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Affiliation(s)
- Daniela Michlmayr
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, 94720-3370, CA, USA
| | - Paulina Andrade
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, 94720-3370, CA, USA
- Universidad de San Francisco de Quito, Quito, 170157, Ecuador
| | - Karla Gonzalez
- Sustainable Sciences Institute, Managua, 14007, Nicaragua
- Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, 16064, Nicaragua
| | - Angel Balmaseda
- Sustainable Sciences Institute, Managua, 14007, Nicaragua
- Laboratorio Nacional de Virología, Centro Nacional de Diagnóstico y Referencia, Ministry of Health, Managua, 16064, Nicaragua
| | - Eva Harris
- Division of Infectious Diseases and Vaccinology, School of Public Health, University of California, Berkeley, Berkeley, 94720-3370, CA, USA.
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218
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Murayama G, Furusawa N, Chiba A, Yamaji K, Tamura N, Miyake S. Enhanced IFN-α production is associated with increased TLR7 retention in the lysosomes of palasmacytoid dendritic cells in systemic lupus erythematosus. Arthritis Res Ther 2017; 19:234. [PMID: 29052537 PMCID: PMC5649081 DOI: 10.1186/s13075-017-1441-7] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 09/21/2017] [Indexed: 01/04/2023] Open
Abstract
Background Interferon-α (IFN-α) is increased and plays an important role in the pathogenesis of systemic lupus erythematosus (SLE). Plasmacytoid dendritic cells (pDCs) are the main producer of IFN-α, but their IFN-α producing capacity has been shown to be unchanged or reduced when stimulated with a Toll-like receptor 9 (TLR9) agonist in patients with SLE compared to in healthy individuals. In this study, we investigated the IFN-α-producing capacity of lupus pDCs under different stimulation. Methods pDCs from patients with SLE and healthy controls (HC) were stimulated with TLR9 or TLR7 agonist, and their IFN-α producing capacity was examined by intracellular cytokine staining and flow cytometry. The correlation of IFN-α-producing capacity with serum IFN-α levels and disease activity was assessed. The effect of in vitro IFN-α exposure on IFN-α production by pDCs was examined. Localization of TLR7 in cellular compartments in pDCs was investigated. Results The IFN-α producing capacity of pDCs was reduced after TLR9 stimulation, but increased when stimulated with a TLR7 agonist in SLE compared to in HC. IFN-α production by pDCs upon TLR9 stimulation was reduced and the percentage of IFN-α+pDC was inversely correlated with disease activity and serum IFN-α levels. However, the TLR7 agonist-induced IFN-α producing capacity of lupus pDCs was enhanced and correlated with disease activity and serum IFN-α. Exposure to IFN-α enhanced IFN-α production of TLR7-stimulated pDCs, but reduced that of pDCs activated with a TLR9 agonist. TLR7 localization was increased in late endosome/lysosome compartments in pDCs from SLE patients. Conclusions These findings indicate that enhanced TLR7 responses of lupus pDCs, owing to TLR7 retention in late endosome/lysosome and exposure to IFN-α, are associated with the pathogenesis of SLE. Electronic supplementary material The online version of this article (doi:10.1186/s13075-017-1441-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Goh Murayama
- Department of Immunology, Juntendo University School of Medicine, 2-2-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.,Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
| | - Nanako Furusawa
- Department of Immunology, Juntendo University School of Medicine, 2-2-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan
| | - Asako Chiba
- Department of Immunology, Juntendo University School of Medicine, 2-2-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
| | - Ken Yamaji
- Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
| | - Naoto Tamura
- Department of Internal Medicine and Rheumatology, Juntendo University School of Medicine, Tokyo, Japan
| | - Sachiko Miyake
- Department of Immunology, Juntendo University School of Medicine, 2-2-1 Hongo, Bunkyo-ku, Tokyo, 113-8421, Japan.
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219
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Interferon-Inducible CD169/Siglec1 Attenuates Anti-HIV-1 Effects of Alpha Interferon. J Virol 2017; 91:JVI.00972-17. [PMID: 28794041 DOI: 10.1128/jvi.00972-17] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Accepted: 08/08/2017] [Indexed: 02/07/2023] Open
Abstract
A hallmark of human immunodeficiency virus type 1 (HIV-1) infection in vivo is chronic immune activation concomitant with type I interferon (IFN) production. Although type I IFN induces an antiviral state in many cell types, HIV-1 can replicate in vivo via mechanisms that have remained unclear. We have recently identified a type I IFN-inducible protein, CD169, as the HIV-1 attachment factor on dendritic cells (DCs) that can mediate robust infection of CD4+ T cells in trans Since CD169 expression on macrophages is also induced by type I IFN, we hypothesized that type I IFN-inducible CD169 could facilitate productive HIV-1 infection in myeloid cells in cis and CD4+ T cells in trans and thus offset antiviral effects of type I IFN. In support of this hypothesis, infection of HIV-1 or murine leukemia virus Env (MLV-Env)-pseudotyped HIV-1 particles was enhanced in IFN-α-treated THP-1 monocytoid cells, and this enhancement was primarily dependent on CD169-mediated enhancement at the virus entry step, a phenomenon phenocopied in HIV-1 infections of IFN-α-treated primary monocyte-derived macrophages (MDMs). Furthermore, expression of CD169, a marker of type I IFN-induced immune activation in vivo, was enhanced in lymph nodes from pigtailed macaques infected with simian immunodeficiency virus (SIV) carrying HIV-1 reverse transcriptase (RT-SHIV), compared to uninfected macaques, and interestingly, there was extensive colocalization of p27gag and CD169, suggesting productive infection of CD169+ myeloid cells in vivo While cell-free HIV-1 infection of IFN-α-treated CD4+ T cells was robustly decreased, initiation of infection in trans via coculture with CD169+ IFN-α-treated DCs restored infection, suggesting that HIV-1 exploits CD169 in cis and in trans to attenuate a type I IFN-induced antiviral state.IMPORTANCE HIV-1 infection in humans causes immune activation characterized by elevated levels of proinflammatory cytokines, including type I interferons (IFN). Although type I IFN induces an antiviral state in many cell types in vitro, HIV-1 can replicate in vivo via mechanisms that have remained unclear. In this study, we tested the hypothesis that CD169, a type I IFN-inducible HIV-1 attachment factor, offsets antiviral effects of type I IFN. Infection of HIV-1 was rescued in IFN-α-treated myeloid cells via upregulation of CD169 and a subsequent increase in CD169-dependent virus entry. Furthermore, extensive colocalization of viral Gag and CD169 was observed in lymph nodes of infected pigtailed macaques, suggesting productive infection of CD169+ cells in vivo Treatment of dendritic cell (DC)-T cell cocultures with IFN-α upregulated CD169 expression on DCs and rescued HIV-1 infection of CD4+ T cells in trans, suggesting that HIV-1 exploits CD169 to attenuate type I IFN-induced restrictions.
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220
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Song L, Dong G, Guo L, Graves DT. The function of dendritic cells in modulating the host response. Mol Oral Microbiol 2017; 33:13-21. [PMID: 28845602 DOI: 10.1111/omi.12195] [Citation(s) in RCA: 70] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/22/2017] [Indexed: 12/12/2022]
Abstract
Dendritic cells (DCs) are antigen-presenting cells that capture, process, and present antigens to lymphocytes to initiate and regulate the adaptive immune response. DCs detect bacteria in skin and mucosa and migrate into regional lymph nodes, where they stimulate antigen-specific T and B lymphocyte activation and proliferation. DCs direct CD4 T cells to differentiate to T-cell subsets such as T helper cells types 1, 2, and 17, and regulatory T cells. The periodontium is chronically exposed to oral bacteria that stimulate an inflammatory response to induce gingivitis or periodontitis. DCs play both protective and destructive roles through activation of the acquired immune response and are also reported to be a source of osteoclast precursors that promote bone resorption. FOXO1, a member of the forkhead box O family of transcription factors, plays a significant role in the activation of DCs. The function of DCs in periodontal inflammation has been investigated in a mouse model by lineage-specific deletion of FOXO1 in these cells. Deletion of FOXO1 reduces DC protective function and enhances susceptibility to periodontitis. The kinase Akt, phosphorylates FOXO1 to inhibit FOXO activity. Hence the Akt-FOXO1 axis may play a key role in regulating DCs to have a significant impact on periodontal disease.
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Affiliation(s)
- L Song
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Department of Stomatology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai, China
| | - G Dong
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - L Guo
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA.,Molecular Laboratory for Gene Therapy and Tooth Regeneration and Department of Orthodontics, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - D T Graves
- Department of Periodontics, School of Dental Medicine, University of Pennsylvania, Philadelphia, PA, USA
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221
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Liu H, Jakubzick C, Osterburg AR, Nelson RL, Gupta N, McCormack FX, Borchers MT. Dendritic Cell Trafficking and Function in Rare Lung Diseases. Am J Respir Cell Mol Biol 2017; 57:393-402. [PMID: 28586276 PMCID: PMC5650088 DOI: 10.1165/rcmb.2017-0051ps] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2017] [Accepted: 06/06/2017] [Indexed: 12/14/2022] Open
Abstract
Dendritic cells (DCs) are highly specialized immune cells that capture antigens and then migrate to lymphoid tissue and present antigen to T cells. This critical function of DCs is well defined, and recent studies further demonstrate that DCs are also key regulators of several innate immune responses. Studies focused on the roles of DCs in the pathogenesis of common lung diseases, such as asthma, infection, and cancer, have traditionally driven our mechanistic understanding of pulmonary DC biology. The emerging development of novel DC reagents, techniques, and genetically modified animal models has provided abundant data revealing distinct populations of DCs in the lung, and allow us to examine mechanisms of DC development, migration, and function in pulmonary disease with unprecedented detail. This enhanced understanding of DCs permits the examination of the potential role of DCs in diseases with known or suspected immunological underpinnings. Recent advances in the study of rare lung diseases, including pulmonary Langerhans cell histiocytosis, sarcoidosis, hypersensitivity pneumonitis, and pulmonary fibrosis, reveal expanding potential pathogenic roles for DCs. Here, we provide a review of DC development, trafficking, and effector functions in the lung, and discuss how alterations in these DC pathways contribute to the pathogenesis of rare lung diseases.
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Affiliation(s)
- Huan Liu
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Claudia Jakubzick
- Department of Immunology and Microbiology, National Jewish Health and University of Colorado, Denver, Colorado; and
| | - Andrew R. Osterburg
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Rebecca L. Nelson
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati, Cincinnati, Ohio
| | - Nishant Gupta
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati, Cincinnati, Ohio
- Cincinnati Veteran’s Affairs Medical Center, Cincinnati, Ohio
| | - Francis X. McCormack
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati, Cincinnati, Ohio
- Cincinnati Veteran’s Affairs Medical Center, Cincinnati, Ohio
| | - Michael T. Borchers
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, University of Cincinnati, Cincinnati, Ohio
- Cincinnati Veteran’s Affairs Medical Center, Cincinnati, Ohio
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Hannibal TD, Schmidt-Christensen A, Nilsson J, Fransén-Pettersson N, Hansen L, Holmberg D. Deficiency in plasmacytoid dendritic cells and type I interferon signalling prevents diet-induced obesity and insulin resistance in mice. Diabetologia 2017; 60:2033-2041. [PMID: 28660492 PMCID: PMC6448810 DOI: 10.1007/s00125-017-4341-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 05/19/2017] [Indexed: 12/30/2022]
Abstract
AIMS/HYPOTHESIS Obesity is associated with glucose intolerance and insulin resistance and is closely linked to the increasing prevalence of type 2 diabetes. In mouse models of diet-induced obesity (DIO) and type 2 diabetes, an increased fat intake results in adipose tissue expansion and the secretion of proinflammatory cytokines. The innate immune system not only plays a crucial role in obesity-associated chronic low-grade inflammation but it is also proposed to play a role in modulating energy metabolism. However, little is known about how the modulation of metabolism by the immune system may promote increased adiposity in the early stages of increased dietary intake. Here we aimed to define the role of type I IFNs in DIO and insulin resistance. METHODS Mice lacking the receptor for IFN-α (IFNAR-/-) and deficient in plasmacytoid dendritic cells (pDCs) (B6.E2-2 fl/fl .Itgax-cre) were fed a diet with a high fat content or normal chow. The mice were analysed in vivo and in vitro using cellular, biochemical and molecular approaches. RESULTS We found that the development of obesity was inhibited by an inability to respond to type I IFNs. Furthermore, the development of obesity and insulin resistance in this model was associated with pDC recruitment to the fatty tissues and liver of obese mice (a 4.3-fold and 2.7-fold increase, respectively). Finally, we demonstrated that the depletion of pDCs protects mice from DIO and from developing obesity-associated metabolic complications. CONCLUSIONS/INTERPRETATION Our results provide genetic evidence that pDCs, via type I IFNs, regulate energy metabolism and promote the development of obesity.
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Affiliation(s)
- Tine D Hannibal
- Department of Experimental Medical Sciences, Lund University, Biomedical Center, CRC, 205 02, Malmö, Sweden
- Department of Immunology & Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Anja Schmidt-Christensen
- Department of Experimental Medical Sciences, Lund University, Biomedical Center, CRC, 205 02, Malmö, Sweden
| | - Julia Nilsson
- Department of Experimental Medical Sciences, Lund University, Biomedical Center, CRC, 205 02, Malmö, Sweden
| | - Nina Fransén-Pettersson
- Department of Experimental Medical Sciences, Lund University, Biomedical Center, CRC, 205 02, Malmö, Sweden
- Department of Immunology & Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Lisbeth Hansen
- Department of Experimental Medical Sciences, Lund University, Biomedical Center, CRC, 205 02, Malmö, Sweden
- Department of Immunology & Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark
| | - Dan Holmberg
- Department of Experimental Medical Sciences, Lund University, Biomedical Center, CRC, 205 02, Malmö, Sweden.
- Department of Immunology & Microbiology, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen, Denmark.
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223
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Su H, Liao Z, Yuan G, Su J. A plasmid containing CpG ODN as vaccine adjuvant against grass carp reovirus in grass carp Ctenopharyngodon idella. Oncotarget 2017; 8:86576-86591. [PMID: 29156818 PMCID: PMC5689708 DOI: 10.18632/oncotarget.21245] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Accepted: 08/17/2017] [Indexed: 02/07/2023] Open
Abstract
CpG oligodeoxynucleotides (ODNs) are proved to have strong immune stimulatory activity. Plasmids containing CpG ODNs could be conveniently and low-costly used as vaccine adjuvant. However, they are different among various plasmids, motif repeats, species, etc. In the present study, plasmid pcDNA3.1 (+) containing five repetitions of CpG ODN 1670A named pcDNA3.1-1670A*5 with strong immunostimulation was screened out from twelve recombinant plasmids and three empty vectors by cell proliferation activity, interferon promoter activities and immune related gene expressions in CIK cells. It works through TLR9-mediated signaling pathway, triggering the immune related genes expression. Furthermore, the potentiality of pcDNA3.1-1670A*5 as adjuvant was tested in vivo. pcDNA3.1-1670A*5 was co-inoculated with inactivated GCRV vaccine on grass carp fingerlings. Immunoglobulins (IgM, IgD, IgZ), TLR9, IFNγ2, IFN1, TNF-α, Mx2 and VP4 were examined. Ultimately, pcDNA3.1-1670A*5 significantly enhanced the expressions of IgM in serum, head kidney and spleen, recognition receptor TLR9 as well as antiviral effector molecule Mx2, and inhibited GCRV proliferation in head kidney and spleen tissues. The present study explored the application and mechanism of plasmid containing CpG ODN as high-efficient adjuvant to promote efficiency of vaccine and control disease in grass carp, which will contribute to the development of new type CpG ODN adjuvant in aquaculture industry.
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Affiliation(s)
- Hang Su
- College of Fisheries, Huazhong Agricultural University, Wuhan, China.,Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan, China
| | - Zhiwei Liao
- College of Fisheries, Huazhong Agricultural University, Wuhan, China.,Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan, China
| | - Gailing Yuan
- College of Fisheries, Huazhong Agricultural University, Wuhan, China.,Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan, China
| | - Jianguo Su
- College of Fisheries, Huazhong Agricultural University, Wuhan, China.,Hubei Engineering Technology Research Center for Aquatic Animal Disease Control and Prevention, Wuhan, China.,Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China
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224
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Schäfer C, Ascui G, Ribeiro CH, López M, Prados-Rosales R, González PA, Bueno SM, Riedel CA, Baena A, Kalergis AM, Carreño LJ. Innate immune cells for immunotherapy of autoimmune and cancer disorders. Int Rev Immunol 2017; 36:315-337. [PMID: 28933579 DOI: 10.1080/08830185.2017.1365145] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Modulation of the immune system has been widely targeted for the treatment of several immune-related diseases, such as autoimmune disorders and cancer, due to its crucial role in these pathologies. Current available therapies focus mainly on symptomatic treatment and are often associated with undesirable secondary effects. For several years, remission of disease and subsequently recovery of immune homeostasis has been a major goal for immunotherapy. Most current immunotherapeutic strategies are aimed to inhibit or potentiate directly the adaptive immune response by modulating antibody production and B cell memory, as well as the effector potential and memory of T cells. Although these immunomodulatory approaches have shown some success in the clinic with promising therapeutic potential, they have some limitations related to their effectiveness in disease models and clinical trials, as well as elevated costs. In the recent years, a renewed interest has emerged on targeting innate immune cells for immunotherapy, due to their high plasticity and ability to exert a potent and extremely rapid response, which can influence the outcome of the adaptive immune response. In this review, we discuss the immunomodulatory potential of several innate immune cells, as well as they use for immunotherapy, especially in autoimmunity and cancer.
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Affiliation(s)
- Carolina Schäfer
- a Millennium Institute on Immunology and Immunotherapy Santiago , Chile.,b Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina , Universidad de Chile , Santiago , Chile
| | - Gabriel Ascui
- a Millennium Institute on Immunology and Immunotherapy Santiago , Chile.,b Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina , Universidad de Chile , Santiago , Chile
| | - Carolina H Ribeiro
- b Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina , Universidad de Chile , Santiago , Chile
| | - Mercedes López
- a Millennium Institute on Immunology and Immunotherapy Santiago , Chile.,b Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina , Universidad de Chile , Santiago , Chile
| | - Rafael Prados-Rosales
- c Centro de Investigaciones Cooperativas en Biociencias (CIC bioGUNE) , Bilbao , Spain
| | - Pablo A González
- a Millennium Institute on Immunology and Immunotherapy Santiago , Chile.,d Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas , Pontificia Universidad Católica de Chile , Santiago , Chile
| | - Susan M Bueno
- a Millennium Institute on Immunology and Immunotherapy Santiago , Chile.,d Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas , Pontificia Universidad Católica de Chile , Santiago , Chile
| | - Claudia A Riedel
- a Millennium Institute on Immunology and Immunotherapy Santiago , Chile.,e Departamento de Ciencias Biológicas, Facultad de Ciencias Biológicas y Facultad de Medicina , Universidad Andrés Bello , Santiago , Chile
| | - Andrés Baena
- f Departamento de Microbiología y Parasitología, Facultad de Medicina , Universidad de Antioquia , Medellín , Colombia
| | - Alexis M Kalergis
- a Millennium Institute on Immunology and Immunotherapy Santiago , Chile.,d Departamento de Genética Molecular y Microbiología, Facultad de Ciencias Biológicas , Pontificia Universidad Católica de Chile , Santiago , Chile.,g Departamento de Endocrinología, Facultad de Medicina , Pontificia Universidad Católica de Chile , Santiago , Chile
| | - Leandro J Carreño
- a Millennium Institute on Immunology and Immunotherapy Santiago , Chile.,b Programa de Inmunología, Instituto de Ciencias Biomédicas, Facultad de Medicina , Universidad de Chile , Santiago , Chile
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225
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Follicular Dendritic Cell Activation by TLR Ligands Promotes Autoreactive B Cell Responses. Immunity 2017; 46:106-119. [PMID: 28099860 DOI: 10.1016/j.immuni.2016.12.014] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 08/31/2016] [Accepted: 12/06/2016] [Indexed: 12/30/2022]
Abstract
A hallmark of autoimmunity in murine models of lupus is the formation of germinal centers (GCs) in lymphoid tissues where self-reactive B cells expand and differentiate. In the host response to foreign antigens, follicular dendritic cells (FDCs) maintain GCs through the uptake and cycling of complement-opsonized immune complexes. Here, we examined whether FDCs retain self-antigens and the impact of this process in autoantibody secretion in lupus. We found that FDCs took up and retained self-immune complexes composed of ribonucleotide proteins, autoantibody, and complement. This uptake, mediated through CD21, triggered endosomal TLR7 and led to the secretion of interferon (IFN) α via an IRF5-dependent pathway. Blocking of FDC secretion of IFN-α restored B cell tolerance and reduced the amount of GCs and pathogenic autoantibody. Thus, FDCs are a critical source of the IFN-α driving autoimmunity in this lupus model. This pathway is conserved in humans, suggesting that it may be a viable therapeutic target in systemic lupus erythematosus.
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226
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Carrington EM, Tarlinton DM, Gray DH, Huntington ND, Zhan Y, Lew AM. The life and death of immune cell types: the role of BCL-2 anti-apoptotic molecules. Immunol Cell Biol 2017; 95:870-877. [PMID: 28875977 DOI: 10.1038/icb.2017.72] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Revised: 08/16/2017] [Accepted: 08/24/2017] [Indexed: 12/15/2022]
Abstract
Targeting survival mechanisms of immune cells may provide an avenue for immune intervention to dampen unwanted responses (e.g. autoimmunity, immunopathology and transplant rejection) or enhance beneficial ones (e.g. immune deficiency, microbial defence and cancer immunotherapy). The selective survival mechanisms of the various immune cell types also avails the possibility of specific tailoring of such interventions. Here, we review the role of the BCL-2 anti-apoptotic family members (BCL-2, BCL-XL, BCL-W, MCL-1 and A1) on cell death/survival of the major immune cell types, for example, T, NK, B, dendritic cell (DC) lineages. There is both selectivity and redundancy among this family. Selectivity comes partly from the expression levels in each of the cell types. For example, plasmacytoid DC express abundant BCL-2 and are susceptible to BCL-2 antagonism or deficiency, whereas conventional DC express abundant A1 and are susceptible to A1 deficiency. There is, however, also functional redundancy; for example, overexpression of MCL-1 can override BCL-2 antagonism in plasmacytoid DC. Moreover, susceptibility to another anti-apoptotic family member can be unmasked, when one or other member is removed. These dual principles of selectivity and redundancy should guide the use of antagonists for manipulating immune cells.
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Affiliation(s)
- Emma M Carrington
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - David M Tarlinton
- Department of Immunology and Pathology, Monash University, Melbourne, Victoria, Australia
| | - Daniel H Gray
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Nicholas D Huntington
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Yifan Zhan
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia
| | - Andrew M Lew
- Immunology Division, The Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia.,Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia.,Department of Microbiology and Immunology, University of Melbourne, Parkville, Victoria, Australia
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227
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Venturini J, Cavalcante RS, Moris DV, Golim MDA, Levorato AD, Reis KHD, Arruda MSPD, Mendes RP. Altered distribution of peripheral blood dendritic cell subsets in patients with pulmonary paracoccidioidomycosis. Acta Trop 2017; 173:185-190. [PMID: 28606816 DOI: 10.1016/j.actatropica.2017.06.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 06/04/2017] [Accepted: 06/07/2017] [Indexed: 12/23/2022]
Abstract
Paracoccidioidomycosis (PCM) is a systemic mycosis caused by fungi from the genus Paracoccidioides in Latin America. PCM-patients (PCM-p) are classified as having acute/subacute or chronic (CF) clinical forms. CF is responsible for 75%-90% of all cases, affects mainly adults over 30 years old and the clinical manifestation are associated mainly with lungs and mucosa of upper airdigestive tract. In addition, the CF patients exhibit fibrosis of the lungs, oral mucous membranes and adrenals, and pulmonary emphysema. Consequently, CF PCM-p with active disease, as well as those that have been apparently cured, seem to be an interesting model for studies aiming to understand the long-term host-fungi relationship and hypoxia. Dendritic cells (DCs) constitute a system that serve as a major link between innate and adaptive immunity composed of several subpopulations of cells including two main subsets: myeloid (mDCs) and plasmacytoid (pDCs). The present study aimed to access the distribution of PBDC subsets of CF PCM-p who were not treated (NT) or treated (apparently cured - AC). CF PCM-p were categorized into two groups, consisting of 9 NTs and 9 ACs. Twenty-one healthy individuals were used as the control group. The determination of the PBDC subsets was performed by FACS (fluorescence-activated cell sorting) and the dosage of serum TNF-α, IL1β, IL-18, CCL3, IL-10 and basic fibroblast growth factor (bFGF) by ELISA (enzyme-linked immunosorbent assay). A high count and percentage of mDCs was observed before treatment, along with a low count of pDCs in treated patients. Furthermore, the mDC:pDC ratio and serum levels of TNF-α was higher in both of the PCM-p groups than in the control group. In conclusion, our findings demonstrated that active PCM influences the distribution of mDCs and pDCs, and after treatment, PCM-p retained a lower count of pDCs associated with pro-inflammatory profile. Therefore, we identified new evidences of persistent immunological abnormalities in PCM-p after treatment. Even these patients showing fungal clearance after successful antifungal treatment; the hypoxia, triggered by the persistent pulmonary sequelae, possibly continues to interfere in the immune response.
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228
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Jiang J, Wang S, Fang J, Xu Y, Tong L, Ye X, Zhou W. Stable silencing of TIPE2 reduced the Poly I:C‑induced apoptosis in THP‑1 cells. Mol Med Rep 2017; 16:6313-6319. [PMID: 28849057 DOI: 10.3892/mmr.2017.7364] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 07/05/2017] [Indexed: 11/06/2022] Open
Abstract
The present study aimed to determine the underlying mechanism of toll‑like receptor (TLR) agonist polyinosinic:polycytidylic acid (Poly I:C)‑induced apoptosis in THP‑1 cells following silencing the expression of tumor necrosis factor α‑induced protein 8‑like 2 (TIPE2). THP‑1 cells were incubated with different concentrations of the TLR agonist. Following incubation, reverse transcription‑quantitative polymerase chain reaction was performed to quantify the mRNA expression of TIPE2. Lentiviral technology was used to silence the expression of TIPE2. MTT assay was performed to assess cell proliferation, Annexin V/PI double staining was used to evaluate the apoptosis and western blotting was used to determine the expression levels of caspase‑8 following TIPE2 silencing. The TLRs agonist Poly I:C increased the expression level of TIPE2. During the incubation, Poly I:C also inhibited the proliferation of THP‑1 cells and induced apoptosis. Following silencing of TIPE2 in THP‑1 cells, the Poly I:C‑induced TIPE2 expression was significantly downregulated. Additionally, the Poly I:C‑induced proliferation inhibition and apoptosis in THP‑1 cells were significantly reduced following silencing of TIPE2. The findings of the western blot analysis indicated that the active form of caspase‑8, p18, was downregulated following silencing of TIPE2. In conclusion, the expression of TIPE2 in THP‑1 cells may be upregulated by Poly I:C, which may also inhibit cell proliferation and induce apoptosis. Following the downregulation of TIPE2 the aforementioned effect of Poly I:C treatment was reversed and may be associated with the reduced activity of caspase‑8 that was observed in the TIPE2 silenced group.
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Affiliation(s)
- Jieshu Jiang
- Department of ICU, Affiliated Hospital of Medical College of Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Shanshan Wang
- Department of ICU, Affiliated Hospital of Medical College of Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Jingjing Fang
- Department of ICU, Affiliated Hospital of Medical College of Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Yi Xu
- Department of Emergency, Affiliated Hospital of Medical College of Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Li Tong
- Department of Pharmacology, Ningbo Institute of Medical Sciences, Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Xiaolei Ye
- Department of Pharmacology, Ningbo Institute of Medical Sciences, Ningbo University, Ningbo, Zhejiang 315020, P.R. China
| | - Wu Zhou
- Department of Medicine, College of Medicine and Health, Lishui University, Lishui, Zhejiang 323000, P.R. China
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229
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Henriquez JE, Rizzo MD, Schulz MA, Crawford RB, Gulick P, Kaminski NE. Δ9-Tetrahydrocannabinol Suppresses Secretion of IFNα by Plasmacytoid Dendritic Cells From Healthy and HIV-Infected Individuals. J Acquir Immune Defic Syndr 2017; 75:588-596. [PMID: 28692581 PMCID: PMC5527743 DOI: 10.1097/qai.0000000000001449] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Plasmacytoid dendritic cells (pDCs) play a crucial role in host antiviral immune response through secretion of type I interferon. Interferon alpha (IFNα), a type I IFN, is critical for mounting the initial response to viral pathogens. A consequence of Human Immunodeficiency Virus-1 (HIV) infection is a decrease in both pDC number and function, but prolonged pDC activity has been linked with progression from HIV infection to the development of AIDS. Patients with HIV in the United States routinely use cannabinoid-based therapies to combat the side effects of HIV infection and antiretroviral therapy. However, cannabinoids, including Δ-tetrahydrocannabinol (THC), are well-characterized immunosuppressants. Here, we report that THC suppressed secretion of IFNα by pDC from both healthy and HIV+ donors through a mechanism involving impaired phosphorylation of interferon regulatory factor 7. These results suggest that THC can suppress pDC function during the early host antiviral response by dampening pDC activation.
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Affiliation(s)
- Joseph E Henriquez
- *Michigan State University East Lansing, MI; †Department of Pharmacology and Toxicology East Lansing, MI; ‡Institute for Integrative Toxicology East Lansing, MI; §Department of Cell and Molecular Biology East Lansing, MI; and ‖Department of Osteopathic Medicine East Lansing, MI
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230
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Herlihy SE, Lin C, Nefedova Y. Bone marrow myeloid cells in regulation of multiple myeloma progression. Cancer Immunol Immunother 2017; 66:1007-1014. [PMID: 28378067 PMCID: PMC11029144 DOI: 10.1007/s00262-017-1992-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2016] [Accepted: 03/22/2017] [Indexed: 12/25/2022]
Abstract
Survival, growth, and response to chemotherapy of cancer cells depends strongly on the interaction of cancer cells with the tumor microenvironment. In multiple myeloma, a cancer of plasma cells that localizes preferentially in the bone marrow, the microenvironment is highly enriched with myeloid cells. The majority of myeloid cells are represented by mature and immature neutrophils. The contribution of the different myeloid cell populations to tumor progression and chemoresistance in multiple myeloma is discussed.
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Affiliation(s)
- Sarah E Herlihy
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, 3601 Spruce Street, Room 376, Philadelphia, PA, 19104, USA
| | - Cindy Lin
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, 3601 Spruce Street, Room 376, Philadelphia, PA, 19104, USA
| | - Yulia Nefedova
- Tumor Microenvironment and Metastasis Program, The Wistar Institute, 3601 Spruce Street, Room 376, Philadelphia, PA, 19104, USA.
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231
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Ebersole JL, Dawson D, Emecen-Huja P, Nagarajan R, Howard K, Grady ME, Thompson K, Peyyala R, Al-Attar A, Lethbridge K, Kirakodu S, Gonzalez OA. The periodontal war: microbes and immunity. Periodontol 2000 2017; 75:52-115. [DOI: 10.1111/prd.12222] [Citation(s) in RCA: 95] [Impact Index Per Article: 13.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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232
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Charles J, Chaperot L, Revol B, Baudin M, Mouret S, Hamon A, Leccia MT, Plumas J, Aspord C. The avidity of tumor-specific T cells amplified by a plasmacytoid dendritic cell-based assay can predict the clinical evolution of melanoma patients. Pigment Cell Melanoma Res 2017; 31:82-94. [PMID: 28741900 DOI: 10.1111/pcmr.12618] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Accepted: 07/01/2017] [Indexed: 12/22/2022]
Abstract
The advent of immune checkpoint blockers and targeted therapies has changed the outcome of melanoma. However, many patients experience relapses, emphasizing the need for predictive and prognostic biomarkers. We developed a strategy based on plasmacytoid dendritic cells (pDCs) loaded with melanoma tumor antigens that allows eliciting highly efficient antitumor T-cell responses. We used it to investigate antitumor T-cell functionality in peripheral blood mononuclear cells and tumor-infiltrating lymphocytes from melanoma patients. The pDCs elicited tumor-specific T cells in different proportions and displaying diverse functional features, dependent upon the stage of the disease, but independent of the histological parameters at diagnosis. Strikingly, the avidity of the MelA-specific T cells triggered by the pDCs was found to predict patient relapse time and overall survival. Our findings highlighted unexplored aspects of antitumor T-cell responsiveness in melanoma, and revealed for the first time the structural avidity of tumor-specific T cells as a crucial feature for predicting clinical evolution.
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Affiliation(s)
- Julie Charles
- University Grenoble Alpes, Grenoble, France.,Immunobiology& Immunotherapy of Chronic Diseases, U1209, INSERM, La Tronche, France.,Dermatology, Pôle Pluridisciplinaire de Médecine, CHU Grenoble Alpes, Grenoble, France
| | - Laurence Chaperot
- University Grenoble Alpes, Grenoble, France.,Immunobiology& Immunotherapy of Chronic Diseases, U1209, INSERM, La Tronche, France.,R&D Laboratory, Etablissement Français du Sang Rhone-Alpes, La Tronche, France
| | - Bruno Revol
- Pharmacovigilance Department, CHU Grenoble Alpes, Grenoble, France
| | - Marine Baudin
- University Grenoble Alpes, Grenoble, France.,Immunobiology& Immunotherapy of Chronic Diseases, U1209, INSERM, La Tronche, France.,R&D Laboratory, Etablissement Français du Sang Rhone-Alpes, La Tronche, France
| | - Stephane Mouret
- Dermatology, Pôle Pluridisciplinaire de Médecine, CHU Grenoble Alpes, Grenoble, France
| | - Agnes Hamon
- Laboratoire Jean Kuntzmann, Universite Grenoble Alpes, Grenoble, France
| | - Marie-Therese Leccia
- University Grenoble Alpes, Grenoble, France.,Immunobiology& Immunotherapy of Chronic Diseases, U1209, INSERM, La Tronche, France.,Dermatology, Pôle Pluridisciplinaire de Médecine, CHU Grenoble Alpes, Grenoble, France
| | - Joel Plumas
- University Grenoble Alpes, Grenoble, France.,Immunobiology& Immunotherapy of Chronic Diseases, U1209, INSERM, La Tronche, France.,R&D Laboratory, Etablissement Français du Sang Rhone-Alpes, La Tronche, France
| | - Caroline Aspord
- University Grenoble Alpes, Grenoble, France.,Immunobiology& Immunotherapy of Chronic Diseases, U1209, INSERM, La Tronche, France.,R&D Laboratory, Etablissement Français du Sang Rhone-Alpes, La Tronche, France
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233
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Sacchi A, Tumino N, Turchi F, Refolo G, Fimia G, Ciccosanti F, Montalbano M, Lionetti R, Taibi C, D'Offizi G, Casetti R, Bordoni V, Cimini E, Martini F, Agrati C. Dendritic cells activation is associated with sustained virological response to telaprevir treatment of HCV-infected patients. Clin Immunol 2017; 183:82-90. [PMID: 28736275 DOI: 10.1016/j.clim.2017.07.017] [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: 08/26/2016] [Revised: 06/28/2017] [Accepted: 07/19/2017] [Indexed: 11/16/2022]
Abstract
First anti-HCV treatments, that include protease inhibitors in conjunction with IFN-α and Ribavirin, increase the sustained virological response (SVR) up to 80% in patients infected with HCV genotype 1. The effects of triple therapies on dendritic cell (DC) compartment have not been investigated. In this study we evaluated the effect of telaprevir-based triple therapy on DC phenotype and function, and their possible association with treatment outcome. HCV+ patients eligible for telaprevir-based therapy were enrolled, and circulating DC frequency, phenotype, and function were evaluated by flow-cytometry. The antiviral activity of plasmacytoid DC was also tested. In SVR patients, myeloid DC frequency transiently decreased, and returned to baseline level when telaprevir was stopped. Moreover, an up-regulation of CD80 and CD86 on mDC was observed in SVR patients as well as an improvement of IFN-α production by plasmacytoid DC, able to inhibit in vitro HCV replication.
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Affiliation(s)
- Alessandra Sacchi
- Cellular Immunology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy.
| | - Nicola Tumino
- Cellular Immunology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Federica Turchi
- Cellular Immunology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Giulia Refolo
- Cellular Biology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - GianMaria Fimia
- Cellular Biology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Fabiola Ciccosanti
- Cellular Biology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Marzia Montalbano
- Clinical Division, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Raffaella Lionetti
- Clinical Division, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Chiara Taibi
- Clinical Division, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Gianpiero D'Offizi
- Clinical Division, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Rita Casetti
- Cellular Immunology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Veronica Bordoni
- Cellular Immunology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Eleonora Cimini
- Cellular Immunology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Federico Martini
- Cellular Immunology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
| | - Chiara Agrati
- Cellular Immunology Laboratory, "Lazzaro Spallanzani" National Institute for Infectious Diseases, IRCCS, Rome, Italy
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234
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Andrews LP, Marciscano AE, Drake CG, Vignali DAA. LAG3 (CD223) as a cancer immunotherapy target. Immunol Rev 2017; 276:80-96. [PMID: 28258692 DOI: 10.1111/imr.12519] [Citation(s) in RCA: 624] [Impact Index Per Article: 89.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Despite the impressive impact of CTLA4 and PD1-PDL1-targeted cancer immunotherapy, a large proportion of patients with many tumor types fail to respond. Consequently, the focus has shifted to targeting alternative inhibitory receptors (IRs) and suppressive mechanisms within the tumor microenvironment. Lymphocyte activation gene-3 (LAG3) (CD223) is the third IR to be targeted in the clinic, consequently garnering considerable interest and scrutiny. LAG3 upregulation is required to control overt activation and prevent the onset of autoimmunity. However, persistent antigen exposure in the tumor microenvironment results in sustained LAG3 expression, contributing to a state of exhaustion manifest in impaired proliferation and cytokine production. The exact signaling mechanisms downstream of LAG3 and interplay with other IRs remain largely unknown. However, the striking synergy between LAG3 and PD1 observed in multiple settings, coupled with the contrasting intracellular cytoplasmic domain of LAG3 as compared with other IRs, highlights the potential uniqueness of LAG3. There are now four LAG3-targeted therapies in the clinic with many more in preclinical development, emphasizing the broad interest in this IR. Given the translational relevance of LAG3 and the heightened interest in the impact of dual LAG3/PD1 targeting in the clinic, the outcome of these trials could serve as a nexus; significantly increasing or dampening enthusiasm for subsequent targets in the cancer immunotherapeutic pipeline.
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Affiliation(s)
- Lawrence P Andrews
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Ariel E Marciscano
- Department of Radiation Oncology & Molecular Radiation Sciences, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Charles G Drake
- Departments of Oncology, Immunology and Urology, Sidney Kimmel Comprehensive Cancer Center, The Johns Hopkins School of Medicine, Baltimore, MD, USA
| | - Dario A A Vignali
- Department of Immunology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,Tumor Microenvironment Center, University of Pittsburgh Cancer Institute, Pittsburgh, PA, USA
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235
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Silvin A, Yu CI, Lahaye X, Imperatore F, Brault JB, Cardinaud S, Becker C, Kwan WH, Conrad C, Maurin M, Goudot C, Marques-Ladeira S, Wang Y, Pascual V, Anguiano E, Albrecht RA, Iannacone M, García-Sastre A, Goud B, Dalod M, Moris A, Merad M, Palucka AK, Manel N. Constitutive resistance to viral infection in human CD141 + dendritic cells. Sci Immunol 2017; 2:2/13/eaai8071. [PMID: 28783704 DOI: 10.1126/sciimmunol.aai8071] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 03/09/2017] [Accepted: 05/17/2017] [Indexed: 12/24/2022]
Abstract
Dendritic cells (DCs) are critical for the launching of protective T cell immunity in response to viral infection. Viruses can directly infect DCs, thereby compromising their viability and suppressing their ability to activate immune responses. How DC function is maintained in light of this paradox is not understood. By analyzing the susceptibility of primary human DC subsets to viral infections, we report that CD141+ DCs have an innate resistance to infection by a broad range of enveloped viruses, including HIV and influenza virus. In contrast, CD1c+ DCs are susceptible to infection, which enables viral antigen production but impairs their immune functions and survival. The ability of CD141+ DCs to resist infection is conferred by RAB15, a vesicle-trafficking protein constitutively expressed in this DC subset. We show that CD141+ DCs rely on viral antigens produced in bystander cells to launch cross-presentation-driven T cell responses. By dissociating viral infection from antigen presentation, this mechanism protects the functional capacity of DCs to launch adaptive immunity against viral infection.
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Affiliation(s)
- Aymeric Silvin
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Chun I Yu
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA.,The Jackson Laboratory for Genomic Medicine, Farmington, CT 06032, USA.,The Jackson Laboratory, Bar Harbor, ME 04609, USA
| | - Xavier Lahaye
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Francesco Imperatore
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille University, UM2, INSERM U1104, CNRS UMR7280, France
| | - Jean-Baptiste Brault
- Institut Curie, PSL Research University, CNRS, UMR144, Molecular Mechanisms of Intracellular Transport, 75005 Paris, France
| | - Sylvain Cardinaud
- Centre d'Immunologie et des Maladies Infectieuses-Paris, Pierre and Marie Curie University UMRS C7, INSERM U1135, CNRS ERL 8255, Paris, France.,INSERM U955, IMRB Equipe-16, Vaccine Research Institute (VRI), F-94010, Creteil, France
| | - Christian Becker
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine; and Immunology Institute, Mount Sinai School of Medicine, New York, NY 10029, USA
| | - Wing-Hong Kwan
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Cécile Conrad
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Mathieu Maurin
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Christel Goudot
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Santy Marques-Ladeira
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France
| | - Yuanyuan Wang
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA
| | | | | | - Randy A Albrecht
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Matteo Iannacone
- Division of Immunology, Transplantation and Infectious Diseases, IRCCS San Raffaele Scientific Institute, 20132 Milan, Italy
| | - Adolfo García-Sastre
- Department of Microbiology, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Global Health and Emerging Pathogens Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.,Department of Medicine, Division of Infectious Diseases, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Bruno Goud
- Institut Curie, PSL Research University, CNRS, UMR144, Molecular Mechanisms of Intracellular Transport, 75005 Paris, France
| | - Marc Dalod
- Centre d'Immunologie de Marseille-Luminy, Aix Marseille University, UM2, INSERM U1104, CNRS UMR7280, France
| | - Arnaud Moris
- Centre d'Immunologie et des Maladies Infectieuses-Paris, Pierre and Marie Curie University UMRS C7, INSERM U1135, CNRS ERL 8255, Paris, France
| | - Miriam Merad
- Precision Immunology Institute, Human Immune Monitoring Center, Tisch Cancer institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - A Karolina Palucka
- Baylor Institute for Immunology Research, Dallas, TX 75204, USA. .,The Jackson Laboratory for Genomic Medicine, Farmington, CT 06032, USA.,The Jackson Laboratory, Bar Harbor, ME 04609, USA
| | - Nicolas Manel
- Immunity and Cancer Department, Institut Curie, PSL Research University, INSERM U932, 75005 Paris, France.
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236
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Loughland JR, Minigo G, Sarovich DS, Field M, Tipping PE, Montes de Oca M, Piera KA, Amante FH, Barber BE, Grigg MJ, William T, Good MF, Doolan DL, Engwerda CR, Anstey NM, McCarthy JS, Woodberry T. Plasmacytoid dendritic cells appear inactive during sub-microscopic Plasmodium falciparum blood-stage infection, yet retain their ability to respond to TLR stimulation. Sci Rep 2017; 7:2596. [PMID: 28572564 PMCID: PMC5453946 DOI: 10.1038/s41598-017-02096-2] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Accepted: 04/05/2017] [Indexed: 12/13/2022] Open
Abstract
Plasmacytoid dendritic cells (pDC) are activators of innate and adaptive immune responses that express HLA-DR, toll-like receptor (TLR) 7, TLR9 and produce type I interferons. The role of human pDC in malaria remains poorly characterised. pDC activation and cytokine production were assessed in 59 malaria-naive volunteers during experimental infection with 150 or 1,800 P. falciparum-parasitized red blood cells. Using RNA sequencing, longitudinal changes in pDC gene expression were examined in five adults before and at peak-infection. pDC responsiveness to TLR7 and TLR9 stimulation was assessed in-vitro. Circulating pDC remained transcriptionally stable with gene expression altered for 8 genes (FDR < 0.07). There was no upregulation of co-stimulatory molecules CD86, CD80, CD40, and reduced surface expression of HLA-DR and CD123 (IL-3R-α). pDC loss from the circulation was associated with active caspase-3, suggesting pDC apoptosis during primary infection. pDC remained responsive to TLR stimulation, producing IFN-α and upregulating HLA-DR, CD86, CD123 at peak-infection. In clinical malaria, pDC retained HLA-DR but reduced CD123 expression compared to convalescence. These data demonstrate pDC retain function during a first blood-stage P. falciparum exposure despite sub-microscopic parasitaemia downregulating HLA-DR. The lack of evident pDC activation in both early infection and malaria suggests little response of circulating pDC to infection.
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Affiliation(s)
- Jessica R Loughland
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.
| | - Gabriela Minigo
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia
| | - Derek S Sarovich
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Centre for Animal Health Innovation, Faculty of Science, Health, Education and Engineering, University of the Sunshine Coast, Sippy Downs, Queensland, Australia
| | - Matt Field
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia
| | - Peta E Tipping
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Royal Darwin Hospital, Darwin, Australia
| | | | - Kim A Piera
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia
| | - Fiona H Amante
- QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Bridget E Barber
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Infectious Diseases Unit, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia
| | - Matthew J Grigg
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Infectious Diseases Unit, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia
| | - Timothy William
- Infectious Diseases Unit, Queen Elizabeth Hospital, Kota Kinabalu, Sabah, Malaysia.,Sabah Department of Health, Kota Kinabalu, Sabah, Malaysia
| | | | - Denise L Doolan
- Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, Australia.,QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | | | - Nicholas M Anstey
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia.,Royal Darwin Hospital, Darwin, Australia
| | | | - Tonia Woodberry
- Menzies School of Health Research, Darwin, Australia and Charles Darwin University, Darwin, Australia
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237
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Zhang C, Oberoi P, Oelsner S, Waldmann A, Lindner A, Tonn T, Wels WS. Chimeric Antigen Receptor-Engineered NK-92 Cells: An Off-the-Shelf Cellular Therapeutic for Targeted Elimination of Cancer Cells and Induction of Protective Antitumor Immunity. Front Immunol 2017; 8:533. [PMID: 28572802 PMCID: PMC5435757 DOI: 10.3389/fimmu.2017.00533] [Citation(s) in RCA: 221] [Impact Index Per Article: 31.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 04/21/2017] [Indexed: 12/27/2022] Open
Abstract
Significant progress has been made in recent years toward realizing the potential of natural killer (NK) cells for cancer immunotherapy. NK cells can respond rapidly to transformed and stressed cells and have the intrinsic potential to extravasate and reach their targets in almost all body tissues. In addition to donor-derived primary NK cells, also the established NK cell line NK-92 is being developed for adoptive immunotherapy, and general safety of infusion of irradiated NK-92 cells has been established in phase I clinical trials with clinical responses observed in some of the cancer patients treated. To enhance their therapeutic utility, NK-92 cells have been modified to express chimeric antigen receptors (CARs) composed of a tumor-specific single chain fragment variable antibody fragment fused via hinge and transmembrane regions to intracellular signaling moieties such as CD3ζ or composite signaling domains containing a costimulatory protein together with CD3ζ. CAR-mediated activation of NK cells then bypasses inhibitory signals and overcomes NK resistance of tumor cells. In contrast to primary NK cells, CAR-engineered NK-92 cell lines suitable for clinical development can be established from molecularly and functionally well-characterized single cell clones following good manufacturing practice-compliant procedures. In preclinical in vitro and in vivo models, potent antitumor activity of NK-92 variants targeted to differentiation antigens expressed by hematologic malignancies, and overexpressed or mutated self-antigens associated with solid tumors has been found, encouraging further development of CAR-engineered NK-92 cells. Importantly, in syngeneic mouse tumor models, induction of endogenous antitumor immunity after treatment with CAR-expressing NK-92 cells has been demonstrated, resulting in cures and long-lasting immunological memory protecting against tumor rechallenge at distant sites. Here, we summarize the current status and future prospects of CAR-engineered NK-92 cells as off-the-shelf cellular therapeutics, with special emphasis on ErbB2 (HER2)-specific NK-92 cells that are approaching clinical application.
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Affiliation(s)
- Congcong Zhang
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany.,German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt am Main, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Pranav Oberoi
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany
| | - Sarah Oelsner
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany
| | - Anja Waldmann
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany
| | - Aline Lindner
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany
| | - Torsten Tonn
- German Cancer Research Center (DKFZ), Heidelberg, Germany.,German Red Cross Blood Donation Service North-East, Institute for Transfusion Medicine, Dresden, Germany.,Medical Faculty Carl Gustav Carus, TU Dresden, Dresden, Germany.,German Cancer Consortium (DKTK), Partner Site Dresden, Dresden, Germany
| | - Winfried S Wels
- Georg-Speyer-Haus, Institute for Tumor Biology and Experimental Therapy, Frankfurt am Main, Germany.,German Cancer Consortium (DKTK), Partner Site Frankfurt/Mainz, Frankfurt am Main, Germany.,German Cancer Research Center (DKFZ), Heidelberg, Germany
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238
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Gazdhar A, Blank F, Cesson V, Lovis A, Aubert JD, Lazor R, Spertini F, Wilson A, Hostettler K, Nicod LP, Obregon C. Human Bronchial Epithelial Cells Induce CD141/CD123/DC-SIGN/ FLT3 Monocytes That Promote Allogeneic Th17 Differentiation. Front Immunol 2017; 8:447. [PMID: 28487694 PMCID: PMC5403901 DOI: 10.3389/fimmu.2017.00447] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Accepted: 03/31/2017] [Indexed: 12/28/2022] Open
Abstract
Little is known about monocyte differentiation in the lung mucosal environment and about how the epithelium shapes monocyte function. We studied the role of the soluble component of bronchial epithelial cells (BECs) obtained under basal culture conditions in innate and adaptive monocyte responses. Monocytes cultured in bronchial epithelial cell-conditioned media (BEC-CM) specifically upregulate CD141, CD123, and DC-SIGN surface levels and FLT3 expression, as well as the release of IL-1β, IL-6, and IL-10. BEC-conditioned monocytes stimulate naive T cells to produce IL-17 through IL-1β mechanism and also trigger IL-10 production by memory T cells. Furthermore, monocytes cultured in an inflammatory environment induced by the cytokines IL-6, IL-8, IL-1β, IL-15, TNF-α, and GM-CSF also upregulate CD123 and DC-SIGN expression. However, only inflammatory cytokines in the epithelial environment boost the expression of CD141. Interestingly, we identified a CD141/CD123/DC-SIGN triple positive population in the bronchoalveolar lavage fluid (BALF) from patients with different inflammatory conditions, demonstrating that this monocyte population exists in vivo. The frequency of this monocyte population was significantly increased in patients with sarcoidosis, suggesting a role in inflammatory mechanisms. Overall, these data highlight the specific role that the epithelium plays in shaping monocyte responses. Therefore, the unraveling of these mechanisms contributes to the understanding of the function that the epithelium may play in vivo.
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Affiliation(s)
- Amiq Gazdhar
- Department of Pulmonary Medicine, University Hospital Bern, Bern, Switzerland.,Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Fabian Blank
- Department of Pulmonary Medicine, University Hospital Bern, Bern, Switzerland.,Department of Clinical Research, University of Bern, Bern, Switzerland
| | - Valerie Cesson
- Pneumology Division, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Alban Lovis
- Pneumology Division, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - John David Aubert
- Pneumology Division, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Romain Lazor
- Pneumology Division, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Francois Spertini
- Immunology and Allergy Division, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Anne Wilson
- Department of Fundamental Oncology, University of Lausanne, Epalinges, Switzerland
| | - Katrin Hostettler
- Clinics of Respiratory Medicine, Department of Biomedicine, University Hospital of Basel, Basel, Switzerland
| | - Laurent P Nicod
- Pneumology Division, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
| | - Carolina Obregon
- Pneumology Division, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland
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239
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Mondanelli G, Albini E, Pallotta MT, Volpi C, Chatenoud L, Kuhn C, Fallarino F, Matino D, Belladonna ML, Bianchi R, Vacca C, Bicciato S, Boon L, Ricci G, Grohmann U, Puccetti P, Orabona C. The Proteasome Inhibitor Bortezomib Controls Indoleamine 2,3-Dioxygenase 1 Breakdown and Restores Immune Regulation in Autoimmune Diabetes. Front Immunol 2017; 8:428. [PMID: 28450863 PMCID: PMC5390013 DOI: 10.3389/fimmu.2017.00428] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 03/27/2017] [Indexed: 12/31/2022] Open
Abstract
Bortezomib (BTZ) is a first-in-class proteasome inhibitor approved for the therapy of multiple myeloma that also displays unique regulatory activities on immune cells. The enzyme indoleamine 2,3-dioxygenase 1 (IDO1) is a tryptophan metabolizing enzyme exerting potent immunoregulatory effects when expressed in dendritic cells (DCs), the most potent antigen-presenting cells capable of promoting either immunity or tolerance. We previously demonstrated that, in inflammatory conditions, IDO1 is subjected to proteasomal degradation in DCs, turning these cells from immunoregulatory to immunostimulatory. In non-obese diabetic (NOD) mice, an experimental model of autoimmune diabetes, we also identified an IDO1 defect such that the DCs do not develop tolerance toward pancreatic islet autoantigens. We found that BTZ rescues IDO1 protein expression in vitro in a particular subset of DCs, i.e., plasmacytoid DCs (pDCs) from NOD mice. When administered in vivo to prediabetic mice, the drug prevented diabetes onset through IDO1- and pDC-dependent mechanisms. Although the drug showed no therapeutic activity when administered alone to overtly diabetic mice, its combination with otherwise suboptimal dosages of autoimmune-preventive anti-CD3 antibody resulted in disease reversal in 70% diabetic mice, a therapeutic effect similar to that afforded by full-dosage anti-CD3. Thus, our data indicate a potential for BTZ in the immunotherapy of autoimmune diabetes and further underline the importance of IDO1-mediated immune regulation in such disease.
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Affiliation(s)
- Giada Mondanelli
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Elisa Albini
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Maria T Pallotta
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Claudia Volpi
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Lucienne Chatenoud
- INSERM U1013, Hôpital Necker-Enfants Malades, Université Paris Descartes, Paris, France
| | | | - Francesca Fallarino
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Davide Matino
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Maria L Belladonna
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Roberta Bianchi
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Carmine Vacca
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Silvio Bicciato
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | | | - Giovanni Ricci
- Animal Facility of the University of Perugia, Perugia, Italy
| | - Ursula Grohmann
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Paolo Puccetti
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Ciriana Orabona
- Section of Pharmacology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
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240
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Selective dysfunction of subsets of peripheral blood mononuclear cells during pediatric dengue and its relationship with clinical outcome. Virology 2017; 507:11-19. [PMID: 28395181 DOI: 10.1016/j.virol.2017.04.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 04/03/2017] [Accepted: 04/04/2017] [Indexed: 12/11/2022]
Abstract
During dengue virus (DENV) infection, a blockage of secretion of cytokines such as tumor necrosis factor (TNF)-α and members of the interferon (IFN) family has been described in vitro. We evaluated the functionality of monocytes as well as dendritic, B and T cells isolated from children with mild and severe dengue. Compared with those of healthy children, stimulated monocytes, CD4+ T cells and dendritic cells from children with dengue had lower production of proinflammatory cytokines. The interferon axis was dramatically modulated by infection as plasmacytoid dendritic cells (pDCs) and CD4+ T cells had low production of IFN-α and IFN-γ, respectively; plasma levels of IFN-α and IFN-γ were lower in severely ill children, suggesting a protective role. Patients with antigenemia had the highest levels of IFN-α in plasma but the lowest frequency of IFN-α-producing pDCs, suggesting that DENV infection stimulates a systemic type I IFN response but affects the pDCs function.
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241
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Zhou H, Wu L. The development and function of dendritic cell populations and their regulation by miRNAs. Protein Cell 2017; 8:501-513. [PMID: 28364278 PMCID: PMC5498339 DOI: 10.1007/s13238-017-0398-2] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 10/10/2016] [Indexed: 12/17/2022] Open
Abstract
Dendritic cells (DCs) are important immune cells linking innate and adaptive immune responses. DCs encounter various self and non-self antigens present in the environment and induce different types of antigen specific adaptive immune responses. DCs can be classified into lymphoid tissue-resident DCs, migratory DCs, non-lymphoid resident DCs, and monocyte derived DCs (moDCs). Recent work has also established that DCs consist of developmentally and functionally distinct subsets that differentially regulate T lymphocyte function. The development of different DC subsets has been found to be regulated by a network of different cytokines and transcriptional factors. Moreover, the response of DC is tightly regulated to maintain the homeostasis of immune system. MicroRNAs (miRNAs) are an important class of cellular regulators that modulate gene expression and thereby influence cell fate and function. In the immune system, miRNAs act at checkpoints during hematopoietic development and cell subset differentiation, they modulate effector cell function, and are implicated in the maintenance of homeostasis. DCs are also regulated by miRNAs. In the past decade, much progress has been made to understand the role of miRNAs in regulating the development and function of DCs. In this review, we summarize the origin and distribution of different mouse DC subsets in both lymphoid and non-lymphoid tissues. The DC subsets identified in human are also described. Recent progress on the function of miRNAs in the development and activation of DCs and their functional relevance to autoimmune diseases are discussed.
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Affiliation(s)
- Haibo Zhou
- Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University School of Medicine, Institute of Immunology Tsinghua University, Beijing, 100084, China
| | - Li Wu
- Tsinghua-Peking Joint Center for Life Sciences, Tsinghua University School of Medicine, Institute of Immunology Tsinghua University, Beijing, 100084, China.
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242
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IL-21 May Promote Granzyme B-Dependent NK/Plasmacytoid Dendritic Cell Functional Interaction in Cutaneous Lupus Erythematosus. J Invest Dermatol 2017; 137:1493-1500. [PMID: 28344062 DOI: 10.1016/j.jid.2017.03.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 02/14/2017] [Accepted: 03/06/2017] [Indexed: 12/13/2022]
Abstract
Autoimmune skin lesions are characterized by a complex cytokine milieu and by the accumulation of plasmacytoid dendritic cells (pDCs). Granzyme B (GrB) transcript is abundant in activated pDCs, though its mechanisms of regulation and biological role are largely unknown. Here we report that IL-21 was the only T helper 1/T helper 17 cytokine able to induce the expression and secretion of GrB by pDCs and that this action was counteracted by the autocrine production of type I IFNs. In lupus erythematosus skin lesions, the percentage of GrB+ pDCs directly correlated with the IL-21/MxA ratio, indicating that the interplay between these two cytokines finely tunes the levels of pDC-dependent GrB also in vivo. In lupus erythematosus, pDCs colocalized with professional cytotoxic cells at sites of epithelial damage, suggesting a role in keratinocyte killing. Accordingly, we demonstrate that supernatants of IL-21-activated pDCs promoted autologous keratinocyte killing by natural killer cells and this action was dependent on GrB. These results propose a GrB-dependent functional interaction between pDCs and natural killer cells and highlight a negative feedback regulation by type I IFNs in vitro and in vivo that may function to limit excessive tissue damage.
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243
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Iwaszkiewicz-Grzes D, Cholewinski G, Kot-Wasik A, Trzonkowski P, Dzierzbicka K. Investigations on the immunosuppressive activity of derivatives of mycophenolic acid in immature dendritic cells. Int Immunopharmacol 2017; 44:137-142. [DOI: 10.1016/j.intimp.2017.01.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 12/09/2016] [Accepted: 01/08/2017] [Indexed: 10/20/2022]
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244
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Guo X, Chen SY. Dedicator of Cytokinesis 2 in Cell Signaling Regulation and Disease Development. J Cell Physiol 2017; 232:1931-1940. [DOI: 10.1002/jcp.25512] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 08/08/2016] [Indexed: 02/01/2023]
Affiliation(s)
- Xia Guo
- Department of Physiology and Pharmacology; University of Georgia; Athens Georgia
| | - Shi-You Chen
- Department of Physiology and Pharmacology; University of Georgia; Athens Georgia
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Furuta Y, Tsai SH, Kinoshita M, Fujimoto K, Okumura R, Umemoto E, Kurashima Y, Kiyono H, Kayama H, Takeda K. E-NPP3 controls plasmacytoid dendritic cell numbers in the small intestine. PLoS One 2017; 12:e0172509. [PMID: 28225814 PMCID: PMC5321438 DOI: 10.1371/journal.pone.0172509] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2016] [Accepted: 02/05/2017] [Indexed: 01/17/2023] Open
Abstract
Extracellular adenosine 5'-triphosphate (ATP) performs multiple functions including activation and induction of apoptosis of many cell types. The ATP-hydrolyzing ectoenzyme ecto-nucleotide pyrophosphatase/phosphodiesterase 3 (E-NPP3) regulates ATP-dependent chronic allergic responses by mast cells and basophils. However, E-NPP3 is also highly expressed on epithelial cells of the small intestine. In this study, we showed that E-NPP3 controls plasmacytoid dendritic cell (pDC) numbers in the intestine through regulation of intestinal extracellular ATP. In Enpp3-/- mice, ATP concentrations were increased in the intestinal lumen. pDC numbers were remarkably decreased in the small intestinal lamina propria and Peyer's patches. Intestinal pDCs of Enpp3-/- mice showed enhanced cell death as characterized by increases in annexin V binding and expression of cleaved caspase-3. pDCs were highly sensitive to ATP-induced cell death compared with conventional DCs. ATP-induced cell death was abrogated in P2rx7-/- pDCs. Accordingly, the number of intestinal pDCs was restored in Enpp3-/- P2rx7-/- mice. These findings demonstrate that E-NPP3 regulates ATP concentration and thereby prevents the decrease of pDCs in the small intestine.
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Affiliation(s)
- Yoki Furuta
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
- Department of Gastroenterology and Hepatology, Graduate School of Medical Sciences, Kumamoto University, Kumamoto, Japan
| | - Shih-Han Tsai
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Makoto Kinoshita
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Kosuke Fujimoto
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Ryu Okumura
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Eiji Umemoto
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Yosuke Kurashima
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
- Division of Mucosal Immunology, Department of Microbiology and Immunology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Hiroshi Kiyono
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
- Division of Mucosal Immunology, Department of Microbiology and Immunology, Institute of Medical Science, The University of Tokyo, Tokyo, Japan
| | - Hisako Kayama
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Kiyoshi Takeda
- Laboratory of Immune Regulation, Department of Microbiology and Immunology, Graduate School of Medicine, WPI Immunology Frontier Research Center, Osaka University, Suita, Osaka, Japan
- Core Research for Evolutional Science and Technology, Japan Agency for Medical Research and Development, Tokyo, Japan
- * E-mail:
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Shen J, Huang CK, Yu H, Shen B, Zhang Y, Liang Y, Li Z, Feng X, Zhao J, Duan L, Cai X. The role of exosomes in hepatitis, liver cirrhosis and hepatocellular carcinoma. J Cell Mol Med 2017; 21:986-992. [PMID: 28224705 PMCID: PMC5387156 DOI: 10.1111/jcmm.12950] [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: 04/18/2016] [Accepted: 06/29/2016] [Indexed: 12/21/2022] Open
Abstract
Exosomes are small vesicles that were initially thought to be a mechanism for discarding unneeded membrane proteins from reticulocytes. Their mediation of intercellular communication appears to be associated with several biological functions. Current studies have shown that most mammalian cells undergo the process of exosome formation and utilize exosome‐mediated cell communication. Exosomes contain various microRNAs, mRNAs and proteins. They have been reported to mediate multiple functions, such as antigen presentation, immune escape and tumour progression. This concise review highlights the findings regarding the roles of exosomes in liver diseases, particularly hepatitis B, hepatitis C, liver cirrhosis and hepatocellular carcinoma. However, further elucidation of the contributions of exosomes to intercellular information transmission is needed. The potential medical applications of exosomes in liver diseases seem practical and will depend on the ingenuity of future investigators and their insights into exosome‐mediated biological processes.
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Affiliation(s)
- Jiliang Shen
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Chiung-Kuei Huang
- Department of Medicine, Rhode Island Hospital and The Warren Alpert Medical School of Brown University, Providence, RI, USA
| | - Hong Yu
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Bo Shen
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Yaping Zhang
- Department of Anesthesiology, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Yuelong Liang
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Zheyong Li
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Xu Feng
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Jie Zhao
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Lian Duan
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
| | - Xiujun Cai
- Department of General Surgery, Sir Run-Run Shaw Hospital, Zhejiang University, Hangzhou, China
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247
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Awais M, Wang K, Lin X, Qian W, Zhang N, Wang C, Wang K, Zhao L, Fu ZF, Cui M. TLR7 Deficiency Leads to TLR8 Compensative Regulation of Immune Response against JEV in Mice. Front Immunol 2017; 8:160. [PMID: 28265274 PMCID: PMC5316529 DOI: 10.3389/fimmu.2017.00160] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2016] [Accepted: 01/31/2017] [Indexed: 12/28/2022] Open
Abstract
Japanese encephalitis virus (JEV) is a highly fatal pathogen to human beings. Toll-like receptor 7 (TLR7) plays a role as the first host defense against most single-stranded RNA flaviviruses. This study aims to investigate the role of TLR7 in inducing adaptive immune response in mice against JEV. In vitro and in vivo studies were conducted to examine the expression of toll-like receptors (TLRs) in mice. After JEV infection, physical parameters of mice (survival rate and body weight) were evaluated, and organs or cells were collected for further analysis. The expression of TLR7 was increased significantly as compare to other TLR molecules post-JEV infection. The expression of CD80, CD86, and CD273 on bone marrow-derived dendritic cells was increased significantly in TLR7−/− mice. Furthermore, viral load was also increased significantly in TLR7−/− mice as compare to C57BL/6 mice. But there was no significant difference among survival rate and body weight in TLR7−/− mice as compare to C57BL/6. Interestingly, we also found that TLR8 was upregulated in TLR7−/− mice. The study concluded that TLR8 was upregulated in TLR7-deficient mice, and it might play a compensatory role in the immune response in TLR7−/− mice.
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Affiliation(s)
- Muhammad Awais
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
| | - Ke Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
| | - Xianwu Lin
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
| | - Wenjie Qian
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
| | - Nan Zhang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
| | - Chong Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
| | - Kunlun Wang
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
| | - Ling Zhao
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
| | - Zhen F Fu
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University, Wuhan, China; Department of Pathology, College of Veterinary Medicine, University of Georgia, Athens, GA, USA
| | - Min Cui
- State Key Laboratory of Agricultural Microbiology, College of Veterinary Medicine, Huazhong Agricultural University , Wuhan , China
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248
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Plasmacytoid dendritic cell proliferations and neoplasms involving the bone marrow. Ann Hematol 2017; 96:765-777. [DOI: 10.1007/s00277-017-2947-4] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 02/03/2017] [Indexed: 12/13/2022]
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249
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Han N, Zhang Z, Liu S, Ow A, Ruan M, Yang W, Zhang C. Increased tumor-infiltrating plasmacytoid dendritic cells predicts poor prognosis in oral squamous cell carcinoma. Arch Oral Biol 2017; 78:129-134. [PMID: 28242507 DOI: 10.1016/j.archoralbio.2017.02.012] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2016] [Revised: 01/15/2017] [Accepted: 02/07/2017] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Accumulating evidence suggests that plasmacytoid dendritic cells (pDC) have a dual role not only in initiating anti-tumor immune responses but also in inducing immune tolerance to facilitate cancer development. The aim of this study was to investigate the distribution and function of tumor-infiltrating pDCs in primary oral squamous cell carcinoma (OSCC) and their relation to patient outcome. METHODS The distribution of pDCs in 10 normal oral mucosa and 60 OSCC tissues was detected by immunohistochemistry. The population of pDCs in six OSCC patients and six healthy donors was evaluated by flow cytometry. The relationship between tumor-infiltrating pDCs and clinicopathological data and patient outcome was analyzed accordingly. The capacity of pDCs to produce cytokines, such as IFN-α, IL-6, IL-8 and TNF-α in response to TLR-9 ligands (CpG-ODN) was measured by ELISA. RESULT PDCs were detected at high levels in 38.3% of the OSCC tissues, primarily in the stroma, but were absent in normal oral mucosa. The frequency of pDCs in OSCC tissue was significantly higher than that observed in normal oral mucosa. However, the distribution and population of circulating pDCs was similar between healthy donors and OSCC patients. Kaplan-Meier analysis revealed a significant association of increasing number of tumor-infiltrating pDCs with lymph node metastasis and overall survival. Multivariate analysis confirmed that high levels of tumor-infiltrating pDCs was an independent prognostic factor. Further cytokine analysis revealed a decreased secretion of IFN-α, IL-6 and TNF-α, which indicated an impaired function of tumor-infiltrating pDCs. CONCLUSIONS The increased number of tumor-infiltrating pDCs correlates with an adverse outcome in primary OSCC patients. This finding is not only suggestive of the contribution of pDCs in the progression of oral cancer but also presents an opportunity and a new target for OSCC immune therapy in oral cancer management.
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Affiliation(s)
- Nannan Han
- Department of Oral Maxillofacial-Head Neck Oncology, Faculty of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Zun Zhang
- Department of Stomatology, Shanghai East Hospital, Tongji University, Shanghai 200120, China
| | - Shengwen Liu
- Department of Oral Maxillofacial-Head Neck Oncology, Faculty of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Andrew Ow
- Department of Oral and Maxillofacial Surgery, Ng Teng Fong General Hospital, Jurong Health Services, Singapore.
| | - Min Ruan
- Department of Oral Maxillofacial-Head Neck Oncology, Faculty of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China.
| | - Wenjun Yang
- Department of Oral Maxillofacial-Head Neck Oncology, Faculty of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
| | - Chenping Zhang
- Department of Oral Maxillofacial-Head Neck Oncology, Faculty of Oral and Maxillofacial Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai Key Laboratory of Stomatology, Shanghai 200011, China
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250
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Braudeau C, Néel A, Amouriaux K, Martin JC, Rimbert M, Besançon A, Giraudet S, Terrien C, Aliaga M, Salabert-Le Guen N, Hémont C, Hamidou M, Josien R. Dysregulated Responsiveness of Circulating Dendritic Cells to Toll-Like Receptors in ANCA-Associated Vasculitis. Front Immunol 2017; 8:102. [PMID: 28232832 PMCID: PMC5298972 DOI: 10.3389/fimmu.2017.00102] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Accepted: 01/20/2017] [Indexed: 02/02/2023] Open
Abstract
Objective Dendritic cells (DCs) are critical effectors of innate and adaptive immunity playing crucial roles in autoimmune responses. We previously showed that blood DC numbers were reduced in autoimmune antineutrophil cytoplasmic autoantibody-associated vasculitis (AAV). Here, we assessed toll-like receptor (TLR) responsiveness of blood DCs from patients with granulomatosis with polyangiitis (GPA) or microscopic polyangiitis (MPA). Methods Blood samples from healthy controls (HCs), GPA, or MPA patients, without treatment, during acute phase (AP) or remission phase (RP) were analyzed. Cytokine production by DCs and T cells was assessed on whole blood by flow cytometry after TLRs or polyclonal stimulation, respectively. Results We first showed that GPA and MPA are associated with a decreased blood DC number during AP. Conventional DCs (cDCs) from patients with GPA and MPA in AP exhibited a profound decrease of IL-12/IL-23p40 production after TLR3, 4, or 7/8 stimulation compared to patients in remission and HC, with a return to normal values in RP. TNFα secretion was also affected, with a decrease in cDCs from GPA patients in AP after TLR3 stimulation but an increase after TLR7/8 stimulation. By contrast, the responsiveness of plasmacytoid DCs to TLR7 and 9 was only marginally affected. Finally, we observed that IFNγ-producing CD4+ T cell frequency was significantly lower in AP-GPA patients than in HC. Conclusion We describe, for the first time, a dysregulated response to TLRs of circulating DCs in AAV patients mostly affecting cDCs that exhibit an unexpected reduced inflammatory cytokine secretion possibly contributing to an altered Th cell response.
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Affiliation(s)
- Cécile Braudeau
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France; Institut de Transplantation-Urologie-Néphrologie (ITUN), CHU Nantes, Nantes, France; Centre de Recherche en Transplantation et Immunologie (UMR1064), INSERM, Université de Nantes, Nantes, France
| | - Antoine Néel
- Centre de Recherche en Transplantation et Immunologie (UMR1064), INSERM, Université de Nantes, Nantes, France; Faculté de Médecine, Université de Nantes, Nantes, France; Service de Médecine Interne, CHU Nantes, Nantes, France
| | - Karine Amouriaux
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France; LabEx Immunotherapy Graft Oncology (IGO), Nantes, France
| | - Jérôme C Martin
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France; Institut de Transplantation-Urologie-Néphrologie (ITUN), CHU Nantes, Nantes, France; Centre de Recherche en Transplantation et Immunologie (UMR1064), INSERM, Université de Nantes, Nantes, France; Faculté de Médecine, Université de Nantes, Nantes, France
| | - Marie Rimbert
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France; Institut de Transplantation-Urologie-Néphrologie (ITUN), CHU Nantes, Nantes, France; Centre de Recherche en Transplantation et Immunologie (UMR1064), INSERM, Université de Nantes, Nantes, France
| | - Audrey Besançon
- CIMNA, Laboratoire d'Immunologie, CHU Nantes , Nantes , France
| | | | | | - Marine Aliaga
- CIMNA, Laboratoire d'Immunologie, CHU Nantes , Nantes , France
| | - Nina Salabert-Le Guen
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France; Centre de Recherche en Transplantation et Immunologie (UMR1064), INSERM, Université de Nantes, Nantes, France; LabEx Immunotherapy Graft Oncology (IGO), Nantes, France
| | - Caroline Hémont
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France; Institut de Transplantation-Urologie-Néphrologie (ITUN), CHU Nantes, Nantes, France; Centre de Recherche en Transplantation et Immunologie (UMR1064), INSERM, Université de Nantes, Nantes, France
| | - Mohamed Hamidou
- Centre de Recherche en Transplantation et Immunologie (UMR1064), INSERM, Université de Nantes, Nantes, France; Faculté de Médecine, Université de Nantes, Nantes, France; Service de Médecine Interne, CHU Nantes, Nantes, France
| | - Régis Josien
- CIMNA, Laboratoire d'Immunologie, CHU Nantes, Nantes, France; Institut de Transplantation-Urologie-Néphrologie (ITUN), CHU Nantes, Nantes, France; Centre de Recherche en Transplantation et Immunologie (UMR1064), INSERM, Université de Nantes, Nantes, France; Faculté de Médecine, Université de Nantes, Nantes, France; LabEx Immunotherapy Graft Oncology (IGO), Nantes, France
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