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Homeostatic serum IgE is secreted by plasma cells in the thymus and enhances mast cell survival. Nat Commun 2022; 13:1418. [PMID: 35301301 PMCID: PMC8930980 DOI: 10.1038/s41467-022-29032-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Accepted: 02/23/2022] [Indexed: 12/29/2022] Open
Abstract
Increased serum levels of immunoglobulin E (IgE) is a risk factor for various diseases, including allergy and anaphylaxis. However, the source and ontogeny of B cells producing IgE under steady state conditions are not well defined. Here, we show plasma cells that develop in the thymus and potently secrete IgE and other immunoglobulins, including IgM, IgA, and IgG. The development of these IgE-secreting plasma cells are induced by IL-4 produced by invariant Natural Killer T cells, independent of CD1d-mediated interaction. Single-cell transcriptomics suggest the developmental landscape of thymic B cells, and the thymus supports development of transitional, mature, and memory B cells in addition to plasma cells. Furthermore, thymic plasma cells produce polyclonal antibodies without somatic hypermutation, indicating they develop via the extra-follicular pathway. Physiologically, thymic-derived IgEs increase the number of mast cells in the gut and skin, which correlates with the severity of anaphylaxis. Collectively, we define the ontogeny of thymic plasma cells and show that steady state thymus-derived IgEs regulate mast cell homeostasis, opening up new avenues for studying the genetic causes of allergic disorders. Elevated levels of IgE is associated with a range of allergic pathology but the source of such IgE producing B cells during the steady state is poorly understood. Here, Kwon et al. show that homeostatic IgE is secreted by plasma cells in the thymus and link this to mast cell survival.
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102
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Liang L, Pan Y, Bin L, Liu Y, Huang W, Li R, Lai KP. Immunotoxicity mechanisms of perfluorinated compounds PFOA and PFOS. CHEMOSPHERE 2022; 291:132892. [PMID: 34780734 DOI: 10.1016/j.chemosphere.2021.132892] [Citation(s) in RCA: 49] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Revised: 11/09/2021] [Accepted: 11/11/2021] [Indexed: 05/14/2023]
Abstract
Perfluorinated and polyfluorinated compounds (PFASs) are a class of synthetic chemical substances that are widely used in human production and life, such as fire-fighting foams, textiles and clothing, surfactants, and surface protective agents. Perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) are the most abundant and common perfluorinated compounds in biota and humans. Currently, PFOA and PFOS have been listed in the Stockholm Convention on Persistent Organic Pollutants, and their production has been halted in many countries. However, because the high-energy carbon-fluorine bond can make it resistant to hydrolysis, photolysis, microbial degradation, and vertebrate metabolism, PFOA and PFOS show environmental persistence and bioaccumulation and hence, are of great concern to humans and wildlife. PFOA and PFOS have toxic effects on the immune system of the body. This article reviewed the effects of PFOA and PFOS on immune organs such as the spleen, bone marrow, and thymus of mice and zebrafish, and the effects on non-specific immune functions such as the skin barrier, intestinal mucosal barrier, and humoral immunity. We also reviewed the influence of specific immune functions based on cellular immunity, and further summarized the possible immune toxicity mechanisms such as AIM2 inflammasome activation, gene dysregulation, and signal pathway disorders caused by PFOA and PFOS. The aim of this review was to provide a reference for further understanding of the immunotoxicity and the responsible mechanism of PFOA and PFOS.
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Affiliation(s)
- Luyun Liang
- School of Lingui Clinical Medicine, Guilin Medical University, Guilin, PR China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Yongling Pan
- School of Lingui Clinical Medicine, Guilin Medical University, Guilin, PR China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Lihua Bin
- School of Lingui Clinical Medicine, Guilin Medical University, Guilin, PR China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Yu Liu
- School of Lingui Clinical Medicine, Guilin Medical University, Guilin, PR China; Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Wenjun Huang
- Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China
| | - Rong Li
- Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China.
| | - Keng Po Lai
- Laboratory of Environmental Pollution and Integrative Omics, Guilin Medical University, Guilin, PR China.
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103
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Pattaroni C, Macowan M, Chatzis R, Daunt C, Custovic A, Shields MD, Power UF, Grigg J, Roberts G, Ghazal P, Schwarze J, Gore M, Turner S, Bush A, Saglani S, Lloyd CM, Marsland BJ. Early life inter-kingdom interactions shape the immunological environment of the airways. MICROBIOME 2022; 10:34. [PMID: 35189979 PMCID: PMC8862481 DOI: 10.1186/s40168-021-01201-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 11/12/2021] [Indexed: 05/03/2023]
Abstract
BACKGROUND There is increasing evidence that the airway microbiome plays a key role in the establishment of respiratory health by interacting with the developing immune system early in life. While it has become clear that bacteria are involved in this process, there is a knowledge gap concerning the role of fungi. Moreover, the inter-kingdom interactions that influence immune development remain unknown. In this prospective exploratory human study, we aimed to determine early post-natal microbial and immunological features of the upper airways in 121 healthy newborns. RESULTS We found that the oropharynx and nasal cavity represent distinct ecological niches for bacteria and fungi. Breastfeeding correlated with changes in microbiota composition of oropharyngeal samples with the greatest impact upon the relative abundance of Streptococcus species and Candida. Host transcriptome profiling revealed that genes with the highest expression variation were immunological in nature. Multi-omics factor analysis of host and microbial data revealed unique co-variation patterns. CONCLUSION These data provide evidence of a diverse multi-kingdom microbiota linked with local immunological characteristics in the first week of life that could represent distinct trajectories for future respiratory health. TRIAL REGISTRATION NHS Health Research Authority, IRAS ID 199053. Registered 5 Oct 2016. https://www.hra.nhs.uk/planning-and-improving-research/application-summaries/research-summaries/breathing-together/ Video abstract.
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Affiliation(s)
- Céline Pattaroni
- Department of Immunology and Pathology, Monash University, Melbourne, Australia
| | - Matthew Macowan
- Department of Immunology and Pathology, Monash University, Melbourne, Australia
| | - Roxanne Chatzis
- Department of Immunology and Pathology, Monash University, Melbourne, Australia
| | - Carmel Daunt
- Department of Immunology and Pathology, Monash University, Melbourne, Australia
| | - Adnan Custovic
- Imperial Centre for Paediatrics and Child Health, Imperial College London, London, UK
| | - Michael D. Shields
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
| | - Ultan F. Power
- Wellcome-Wolfson Institute for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen’s University Belfast, Belfast, UK
| | - Jonathan Grigg
- Centre for Child Health, Blizard Institute, Queen Mary University of London, London, UK
| | - Graham Roberts
- Human Development in Health School, University of Southampton Faculty of Medicine, Southampton, UK
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- David Hide Asthma and Allergy Research Centre, St Mary’s Hospital, Newport, Isle of Wight UK
| | - Peter Ghazal
- School of Medicine, Systems Immunity Research Institute, Cardiff University, Cardiff, UK
| | - Jürgen Schwarze
- Centre for Inflammation Research, Child Life and Health, The University of Edinburgh, Edinburgh, UK
| | - Mindy Gore
- Imperial Centre for Paediatrics and Child Health, Imperial College London, London, UK
| | - Steve Turner
- Child Health, University of Aberdeen, Aberdeen, UK
- NHS Grampian, Aberdeen, UK
| | - Andrew Bush
- Imperial Centre for Paediatrics and Child Health, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Sejal Saglani
- Imperial Centre for Paediatrics and Child Health, Imperial College London, London, UK
- Royal Brompton Hospital, London, UK
- National Heart & Lung Institute, Imperial College London, London, UK
| | - Clare M. Lloyd
- National Heart & Lung Institute, Imperial College London, London, UK
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Rothbauer M, Eilenberger C, Spitz S, Bachmann BEM, Kratz SRA, Reihs EI, Windhager R, Toegel S, Ertl P. Recent Advances in Additive Manufacturing and 3D Bioprinting for Organs-On-A-Chip and Microphysiological Systems. Front Bioeng Biotechnol 2022; 10:837087. [PMID: 35252144 PMCID: PMC8891807 DOI: 10.3389/fbioe.2022.837087] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 01/31/2022] [Indexed: 12/11/2022] Open
Abstract
The re-creation of physiological cellular microenvironments that truly resemble complex in vivo architectures is the key aspect in the development of advanced in vitro organotypic tissue constructs. Among others, organ-on-a-chip technology has been increasingly used in recent years to create improved models for organs and tissues in human health and disease, because of its ability to provide spatio-temporal control over soluble cues, biophysical signals and biomechanical forces necessary to maintain proper organotypic functions. While media supply and waste removal are controlled by microfluidic channel by a network the formation of tissue-like architectures in designated micro-structured hydrogel compartments is commonly achieved by cellular self-assembly and intrinsic biological reorganization mechanisms. The recent combination of organ-on-a-chip technology with three-dimensional (3D) bioprinting and additive manufacturing techniques allows for an unprecedented control over tissue structures with the ability to also generate anisotropic constructs as often seen in in vivo tissue architectures. This review highlights progress made in bioprinting applications for organ-on-a-chip technology, and discusses synergies and limitations between organ-on-a-chip technology and 3D bioprinting in the creation of next generation biomimetic in vitro tissue models.
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Affiliation(s)
- Mario Rothbauer
- Karl Chiari Lab for Orthopaedic Biology, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna, Austria
| | - Christoph Eilenberger
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Centre, Vienna, Austria
| | - Sarah Spitz
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
| | - Barbara E. M. Bachmann
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in the AUVA Research Centre, Vienna, Austria
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
- Ludwig Boltzmann Research Group Senescence and Healing of Wounds, Vienna, Austria
| | - Sebastian R. A. Kratz
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
| | - Eva I. Reihs
- Karl Chiari Lab for Orthopaedic Biology, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Reinhard Windhager
- Karl Chiari Lab for Orthopaedic Biology, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
- Division of Orthopedics, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
| | - Stefan Toegel
- Karl Chiari Lab for Orthopaedic Biology, Department of Orthopedics and Trauma Surgery, Medical University of Vienna, Vienna, Austria
- Ludwig Boltzmann Institute for Arthritis and Rehabilitation, Vienna, Austria
| | - Peter Ertl
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Vienna, Austria
- Austrian Cluster for Tissue Regeneration, Vienna, Austria
- Institute of Chemical Technologies and Analytics, Vienna University of Technology, Vienna, Austria
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105
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Zhang N, Lyu Y, Guo J, Liu J, Song Y, Fan Z, Li X, Li N, Zhang D, Wang H. Bidirectional Transport of IgE by CD23 in the Inner Ear of Patients with Meniere's Disease. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2022; 208:827-838. [PMID: 35046106 PMCID: PMC9012086 DOI: 10.4049/jimmunol.2100745] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 11/30/2021] [Indexed: 05/27/2023]
Abstract
Meniere's disease (MD) is a disorder of the inner ear characterized by episodes of spontaneous vertigo, fluctuating hearing loss, and tinnitus. Recent studies have demonstrated that IgE may play a role in the pathogenesis of MD. Patients with MD (n = 103), acoustic neuroma (n = 5), and healthy subjects (n = 72) were recruited into the study. Serum from the participants was analyzed for IgE and type 2-related cytokines. IgE and CD23 expression levels in vestibular end organs of patients, C57BL/6 mice, or mouse HEI-OC1 cells were analyzed. Finally, the role of CD23 in IgE transcytosis was assessed using HEI-OC1 cells. Serum IgE was elevated in patients with MD and positively correlated with clinical symptoms. IL-4, IL-5, IL-10, IL-13, and CD23 levels were increased in patients with MD compared with the control group. In the transcytosis assay, mouse IgE was found to be bidirectionally transported across the HEI-OC1 cell monolayer. Additionally, CD23 downregulation using a small interfering RNA approach significantly reduced the efficiency of IgE transcytosis, suggesting that IgE is transported by CD23. Furthermore, exposure to IL-4 increased CD23 expression and enhanced IgE transcytosis in the HEI-OC1 cells and primary vestibular end organs. Our study indicated that IgE may play a role in the pathophysiology of MD. In addition, CD23-mediated IgE transcytosis in the hair cells may play a critical role in initiating inflammation in the inner ear. Thus, reducing the level of IgE may be a potentially effective approach for MD treatment.
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MESH Headings
- Adult
- Aged
- Animals
- Biomarkers
- Cytokines/metabolism
- Disease Models, Animal
- Disease Susceptibility
- Ear, Inner/immunology
- Ear, Inner/metabolism
- Female
- Fluorescent Antibody Technique
- Humans
- Immunoglobulin E/immunology
- Immunoglobulin E/metabolism
- Lectins, C-Type/genetics
- Lectins, C-Type/metabolism
- Male
- Meniere Disease/diagnosis
- Meniere Disease/etiology
- Meniere Disease/metabolism
- Mice
- Middle Aged
- Molecular Imaging
- Phenotype
- Protein Binding
- Protein Transport
- Receptors, IgE/genetics
- Receptors, IgE/metabolism
- Transcytosis/immunology
- Vestibule, Labyrinth/immunology
- Vestibule, Labyrinth/metabolism
- Vestibule, Labyrinth/pathology
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Affiliation(s)
- Na Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
| | - Yafeng Lyu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
| | - Jia Guo
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
| | - Jiahui Liu
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
| | - Yongdong Song
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
| | - Zhaomin Fan
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
| | - Xiaofei Li
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
| | - Na Li
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China;
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
- Jinan Central Hospital Affiliated to Shandong University, Jinan, Shandong, China
| | - Daogong Zhang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China;
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
| | - Haibo Wang
- Department of Otolaryngology-Head and Neck Surgery, Shandong Provincial ENT Hospital, Cheeloo College of Medicine, Shandong University, Jinan, Shandong, China;
- Shandong Institute of Otorhinolaryngology, Jinan, Shandong, China; and
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106
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Nagata Y, Suzuki R. FcεRI: A Master Regulator of Mast Cell Functions. Cells 2022; 11:cells11040622. [PMID: 35203273 PMCID: PMC8870323 DOI: 10.3390/cells11040622] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/29/2022] [Accepted: 02/09/2022] [Indexed: 02/04/2023] Open
Abstract
Mast cells (MCs) perform multiple functions thought to underlie different manifestations of allergies. Various aspects of antigens (Ags) and their interactions with immunoglobulin E (IgE) cause diverse responses in MCs. FcεRI, a high-affinity IgE receptor, deciphers the Ag–IgE interaction and drives allergic responses. FcεRI clustering is essential for signal transduction and, therefore, determines the quality of MC responses. Ag properties precisely regulate FcεRI dynamics, which consequently initiates differential outcomes by switching the intracellular-signaling pathway, suggesting that Ag properties can control MC responses, both qualitatively and quantitatively. Thus, the therapeutic benefits of FcεRI-targeting strategies have long been examined. Disrupting IgE–FcεRI interactions is a potential therapeutic strategy because the binding affinity between IgE and FcεRI is extremely high. Specifically, FcεRI desensitization, due to internalization, is also a potential therapeutic target that is involved in the mechanisms of allergen-specific immunotherapy. Several recent findings have suggested that silent internalization is strongly associated with FcεRI dynamics. A comprehensive understanding of the role of FcεRI may lead to the development of novel therapies for allergies. Here, we review the qualitatively diverse responses of MCs that impact the attenuation/development of allergies with a focus on the role of FcεRI toward Ag exposure.
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107
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Starkl P, Gaudenzio N, Marichal T, Reber LL, Sibilano R, Watzenboeck ML, Fontaine F, Mueller AC, Tsai M, Knapp S, Galli SJ. IgE antibodies increase honeybee venom responsiveness and detoxification efficiency of mast cells. Allergy 2022; 77:499-512. [PMID: 33840121 PMCID: PMC8502784 DOI: 10.1111/all.14852] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 02/01/2021] [Accepted: 02/14/2021] [Indexed: 02/03/2023]
Abstract
BACKGROUND In contrast to their clearly defined roles in allergic diseases, the physiologic functions of Immunoglobulin E antibodies (IgEs) and mast cells (MCs) remain enigmatic. Recent research supports the toxin hypothesis, showing that MCs and IgE-related type 2 immune responses can enhance host defense against certain noxious substances, including honeybee venom (BV). However, the mechanisms by which MCs can interfere with BV toxicity are unknown. In this study, we assessed the role of IgE and certain MC products in MC-mediated BV detoxification. METHODS We applied in vitro and in vivo fluorescence microscopyimaging, and flow cytometry, fibroblast-based toxicity assays and mass spectrometry to investigate IgE-mediated detoxification of BV cytotoxicity by mouse and human MCs in vitro. Pharmacologic strategies to interfere with MC-derived heparin and proteases helped to define the importance of specific detoxification mechanisms. RESULTS Venom-specific IgE increased the degranulation and cytokine responses of MCs to BV in vitro. Passive serum sensitization enhanced MC degranulation in vivo. IgE-activated mouse or human MCs exhibited enhanced potential for detoxifying BV by both proteolytic degradation and heparin-related interference with toxicity. Mediators released by IgE-activated human MCs efficiently degraded multiple BV toxins. CONCLUSIONS Our results both reveal that IgE sensitization enhances the MC's ability to detoxify BV and also assign efficient toxin-neutralizing activity to MC-derived heparin and proteases. Our study thus highlights the potential importance of IgE, MCs, and particular MC products in defense against BV.
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Affiliation(s)
- Philipp Starkl
- Laboratory of Infection Biology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
- CeMM - Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
| | - Nicolas Gaudenzio
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Toulouse Institute for Infectious and Inflammatory Diseases, INSERM UMR1291, CNRS, UMR5051, University of Toulouse III, Toulouse, France
| | - Thomas Marichal
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- GIGA-Research and Faculty of Veterinary Medicine, University of Liege, Liege, Belgium
| | - Laurent L. Reber
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Toulouse Institute for Infectious and Inflammatory Diseases, INSERM UMR1291, CNRS, UMR5051, University of Toulouse III, Toulouse, France
| | - Riccardo Sibilano
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, CA, USA
| | - Martin L. Watzenboeck
- Department of Biomedical Imaging and Image-guided Therapy, Medical University of Vienna, Vienna, Austria
| | - Frédéric Fontaine
- CeMM - Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - André C. Mueller
- CeMM - Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Mindy Tsai
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, CA, USA
| | - Sylvia Knapp
- Laboratory of Infection Biology, Department of Medicine I, Medical University of Vienna, Vienna, Austria
- CeMM - Research Center for Molecular Medicine of the Austrian Academy of Sciences, Vienna, Austria
| | - Stephen J. Galli
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, USA
- Sean N. Parker Center for Allergy and Asthma Research, Stanford University, Stanford, CA, USA
- Department of Microbiology and Immunology, Stanford University School of Medicine, Stanford, CA, USA
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108
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Wu R, Yuan X, Li X, Ma N, Jiang H, Tang H, Xu G, Liu Z, Zhang Z. The bile acid-activated retinoic acid response in dendritic cells is involved in food allergen sensitization. Allergy 2022; 77:483-498. [PMID: 34365653 DOI: 10.1111/all.15039] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Revised: 06/13/2021] [Accepted: 06/27/2021] [Indexed: 01/10/2023]
Abstract
BACKGROUND Alteration of commensal microbiota is highly correlated with the prevalence of allergic reactions to food in the gastrointestinal tract. The mechanisms by which microbiota modulate food allergen sensitization in the mucosal site are not fully understood. METHODS We generate DCs specific knockout of retinoic acid receptor α (Rara) gene mice (DC KO Rara) to evaluate food sensitization. The bile acid-activated retinoic acid response was evaluated by flow cytometry, real-time RT-PCR and Illumina transcriptome sequencing. The global effect of Abx treatment on BA profiles in the mucosal lymph tissue mLN in mice was examined by UPLC-MS analysis. RESULTS In this study, we demonstrate that depletion of commensal gut bacteria leads to enhanced retinoic acid (RA) signaling in mucosal dendritic cells (DCs). RA signaling in DCs is required for the production of food allergen-specific IgE and IgG1. Antibiotics induced an enlarged bile acid (BA) pool, and dysregulated BA profiles contributed to enhanced RA signaling in mucosal DCs. BA-activated RA signaling promoted DC upregulation of interferon I signature, RA signature, OX40L, and PDL2, which may lead to T helper 2 differentiation of CD4+ T cells. BA-activated RA signaling involved the farnesoid X receptor and RA receptor α (RARa) interaction. Depletion of bile acid reduces food allergen specific IgE and IgG1 levels in mice. CONCLUSION Our research unveils a mechanism of food sensitization modulated by BA-RA signaling in DCs, which suggests a potential new approach for the intervention of food allergic reactions.
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Affiliation(s)
- Renlan Wu
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- Model Animal Research Center Nanjing University Nanjing China
| | - Xiefang Yuan
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Xingjie Li
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
| | - Ning Ma
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Hongyu Jiang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
| | - Hongmei Tang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Guofeng Xu
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
| | - Zhigang Liu
- State Key Laboratory of Respiratory Disease for Allergy at Shenzhen UniversityShenzhen University School of Medicine Shenzhen China
| | - Zongde Zhang
- Inflammation & Allergic Diseases Research Unit Affiliated Hospital of Southwest Medical University Sichuan China
- The School of Basic Medical Sciences Southwest Medical University Sichuan China
- Model Animal Research Center Nanjing University Nanjing China
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109
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Giménez‐Arnau AM, Ribas‐Llauradó C, Mohammad‐Porras N, Deza G, Pujol RM, Gimeno R. IgE and high-affinity IgE receptor in chronic inducible urticaria, pathogenic, and management relevance. Clin Transl Allergy 2022; 12:e12117. [PMID: 35126995 PMCID: PMC8805593 DOI: 10.1002/clt2.12117] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Revised: 01/04/2022] [Accepted: 01/09/2022] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND IgE and high-affinity IgE receptor (FcεRI) expression on basophils have been scarcely explored in patients with chronic inducible urticaria (CIndU). OBJECTIVES To investigate baseline serum IgE and FcεRI expression on blood basophils in a large cohort of CIndU patients and its relationship to treatment response. METHODS Baseline total serum IgE and basophil FcεRI expression measured by flow cytometry in 165 patients with CIndU was studied. The relationship of both parameters with the response to antihistamine and anti-IgE (omalizumab) treatment was considered in a subsample of CIndU patients. FcεRI expression in basophils was assessed by mean fluorescence intensity (MFI) and basophil FcεRI standardized density (receptors/cell). RESULTS The median FcεRI expression standardized per density in blood basophils was found significantly higher in patients with CIndU compared to HCs. A positive correlation was found between IgE serum levels and basophil FcεRI expression. Basal FcεRI expression was not related to antihistamine treatment response. However, it was related to omalizumab, and patients responding to omalizumab showed higher basal basophil expression of FcεRI levels. Non-responders to the antihistamine showed significantly higher IgE serum levels. CONCLUSIONS FcεRI receptor overexpression in patients with CIndU shows almost the same pattern than chronic spontaneous urticaria. It seems to be independent of CIndU subtypes. Although additional studies would be welcome, our work highlights the relevance of FcεRI receptor regulation in CIndU supporting autoimmune basophil and mast cell activation and may be a biomarker for response to anti-IgE therapy.
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Affiliation(s)
- Ana M. Giménez‐Arnau
- Department of DermatologyHospital del Mar‐Institut d’Investigacions Mèdiques (IMIM)Universitat Pompeu Fabra de BarcelonaBarcelonaSpain
| | - Clara Ribas‐Llauradó
- Department of DermatologyHospital del Mar‐Institut d’Investigacions Mèdiques (IMIM)Universitat Pompeu Fabra de BarcelonaBarcelonaSpain
- Department of ImmunologyHospital del Mar‐Institut Mar d’Investigacions MèdiquesBarcelonaSpain
| | - Nasser Mohammad‐Porras
- Department of DermatologyHospital del Mar‐Institut d’Investigacions Mèdiques (IMIM)Universitat Pompeu Fabra de BarcelonaBarcelonaSpain
| | - Gustavo Deza
- Department of DermatologyHospital del Mar‐Institut d’Investigacions Mèdiques (IMIM)Universitat Pompeu Fabra de BarcelonaBarcelonaSpain
| | - Ramón M. Pujol
- Department of DermatologyHospital del Mar‐Institut d’Investigacions Mèdiques (IMIM)Universitat Pompeu Fabra de BarcelonaBarcelonaSpain
| | - Ramón Gimeno
- Department of ImmunologyHospital del Mar‐Institut Mar d’Investigacions MèdiquesBarcelonaSpain
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Exploring the Role of Innate Lymphocytes in the Immune System of Bats and Virus-Host Interactions. Viruses 2022; 14:v14010150. [PMID: 35062356 PMCID: PMC8781337 DOI: 10.3390/v14010150] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/10/2022] [Accepted: 01/12/2022] [Indexed: 01/27/2023] Open
Abstract
Bats are reservoirs of a large number of viruses of global public health significance, including the ancestral virus for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) and the causative agent of coronavirus disease 2019 (COVID-19). Although bats are natural carriers of multiple pathogenic viruses, they rarely display signs of disease. Recent insights suggest that bats have a more balanced host defense and tolerance system to viral infections that may be linked to the evolutionary adaptation to powered flight. Therefore, a deeper understanding of bat immune system may provide intervention strategies to prevent zoonotic disease transmission and to identify new therapeutic targets. Similar to other eutherian mammals, bats have both innate and adaptive immune systems that have evolved to detect and respond to invading pathogens. Bridging these two systems are innate lymphocytes, which are highly abundant within circulation and barrier tissues. These cells share the characteristics of both innate and adaptive immune cells and are poised to mount rapid effector responses. They are ideally suited as the first line of defense against early stages of viral infections. Here, we will focus on the current knowledge of innate lymphocytes in bats, their function, and their potential role in host–pathogen interactions. Moreover, given that studies into bat immune systems are often hindered by a lack of bat-specific research tools, we will discuss strategies that may aid future research in bat immunity, including the potential use of organoid models to delineate the interplay between innate lymphocytes, bat viruses, and host tolerance.
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111
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Arthur GK, Cruse G. Regulation of Trafficking and Signaling of the High Affinity IgE Receptor by FcεRIβ and the Potential Impact of FcεRIβ Splicing in Allergic Inflammation. Int J Mol Sci 2022; 23:ijms23020788. [PMID: 35054974 PMCID: PMC8776166 DOI: 10.3390/ijms23020788] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 01/06/2022] [Accepted: 01/08/2022] [Indexed: 12/23/2022] Open
Abstract
Mast cells are tissue-resident immune cells that function in both innate and adaptive immunity through the release of both preformed granule-stored mediators, and newly generated proinflammatory mediators that contribute to the generation of both the early and late phases of the allergic inflammatory response. Although mast cells can be activated by a vast array of mediators to contribute to homeostasis and pathophysiology in diverse settings and contexts, in this review, we will focus on the canonical setting of IgE-mediated activation and allergic inflammation. IgE-dependent activation of mast cells occurs through the high affinity IgE receptor, FcεRI, which is a multimeric receptor complex that, once crosslinked by antigen, triggers a cascade of signaling to generate a robust response in mast cells. Here, we discuss FcεRI structure and function, and describe established and emerging roles of the β subunit of FcεRI (FcεRIβ) in regulating mast cell function and FcεRI trafficking and signaling. We discuss current approaches to target IgE and FcεRI signaling and emerging approaches that could target FcεRIβ specifically. We examine how alternative splicing of FcεRIβ alters protein function and how manipulation of splicing could be employed as a therapeutic approach. Targeting FcεRI directly and/or IgE binding to FcεRI are promising approaches to therapeutics for allergic inflammation. The characteristic role of FcεRIβ in both trafficking and signaling of the FcεRI receptor complex, the specificity to IgE-mediated activation pathways, and the preferential expression in mast cells and basophils, makes FcεRIβ an excellent, but challenging, candidate for therapeutic strategies in allergy and asthma, if targeting can be realized.
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Affiliation(s)
- Greer K. Arthur
- Department of Population Health and Pathobiology, College of Veterinary Medicine, NC State University, Raleigh, NC 27607, USA;
| | - Glenn Cruse
- Department of Molecular Biomedical Sciences, College of Veterinary Medicine, NC State University, Raleigh, NC 27607, USA
- Correspondence: ; Tel.: +1-919-515-8865
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Wong RS, Tung KTS, Leung HE, Chow R, Chua GT, Ho MHK, Tso WWY, Fung GPG, Tao VQC, Kwan MYW, Lum TYS, Wong ICK, Ip P. Comorbidity of ADHD and allergic diseases in early adolescence: The role of parental smoking at home. CURRENT PSYCHOLOGY 2022; 42:1-9. [PMID: 35018079 PMCID: PMC8734129 DOI: 10.1007/s12144-021-02693-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/30/2021] [Indexed: 11/30/2022]
Abstract
A growing body of research suggests an association between attention deficit hyperactivity disorder (ADHD) and allergic disorders, but little work has been done to explore the role of external factors such as parental smoking at home in the development of comorbid ADHD and allergic disorders. This study aimed to examine the association between allergic diseases and ADHD adjusted for exposure to parental smoking at home in early adolescents. We recruited 250 male (41.7%) and 350 female (58.3%) adolescents (mean [SD] age, 13.29 [0.52] years) via chain-referral sampling. Their ADHD symptoms were assessed by the parent proxy-report version of the Chinese Strengths and Weaknesses of Attention-Deficit/Hyperactivity-symptoms and Normal-behaviours (SWAN) rating scale. Data on the participants' history of clinician-diagnosed allergic diseases, family socio-demographics, and parental smoking habit were collected using a parent-completed questionnaire. Regression analyses were performed to examine the associations of interest. The levels of ADHD symptoms were comparable between allergic and non-allergic participants after controlling for child and family demographics and parental smoking at home. Notably, the risk of probable ADHD was particularly high in participants with food allergies (odd ratio = 4.51, p = 0.011) but not in those with allergic rhinitis after adjusting for parental smoking at home. Our findings suggest that second-hand smoke exposure at home is a potential risk factor underlying the link between ADHD and allergic diseases. Current management guidelines should emphasize the importance of early identification and cessation of tobacco smoke exposure for prevention of comorbidity of ADHD and allergic disorders. Clinical Trial Registration (if any): NA.
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Affiliation(s)
- Rosa S. Wong
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Room 115, 1/F, New Clinical Building, 102 Pokfulam Road, Hong Kong, SAR China
- Department of Social Work and Social Administration, The University of Hong Kong, Hong Kong, SAR China
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
| | - Keith T. S. Tung
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Room 115, 1/F, New Clinical Building, 102 Pokfulam Road, Hong Kong, SAR China
| | - Hugo E. Leung
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Room 115, 1/F, New Clinical Building, 102 Pokfulam Road, Hong Kong, SAR China
| | - Reena Chow
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Room 115, 1/F, New Clinical Building, 102 Pokfulam Road, Hong Kong, SAR China
| | - Gilbert T. Chua
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Room 115, 1/F, New Clinical Building, 102 Pokfulam Road, Hong Kong, SAR China
| | - Macro H. K. Ho
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Room 115, 1/F, New Clinical Building, 102 Pokfulam Road, Hong Kong, SAR China
| | - Winnie W. Y. Tso
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Room 115, 1/F, New Clinical Building, 102 Pokfulam Road, Hong Kong, SAR China
| | - Genevieve P. G. Fung
- Department of Paediatrics, The Chinese University of Hong Kong, Hong Kong, SAR China
| | | | - Mike Y. W. Kwan
- Department of Paediatrics and Adolescent Medicine, Princess Margaret Hospital, Hong Kong, SAR China
| | - Terry Y. S. Lum
- Department of Social Work and Social Administration, The University of Hong Kong, Hong Kong, SAR China
| | - Ian C. K. Wong
- Centre for Safe Medication Practice and Research, Department of Pharmacology and Pharmacy, The University of Hong Kong, Hong Kong, China
- Research Department of Practice and Policy, UCL School of Pharmacy, London, UK
| | - Patrick Ip
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Room 115, 1/F, New Clinical Building, 102 Pokfulam Road, Hong Kong, SAR China
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Feng M, Luo T, Xian M, Shi X, Qin R, Zeng X, Su Q, Li J. Suppression function against environmental dust exposure after Dermatophagoides pteronyssinus immunotherapy is associated with production of specific and cross-reactive immunoglobulin G4. Clin Exp Allergy 2021; 52:878-887. [PMID: 34962673 DOI: 10.1111/cea.14088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 12/06/2021] [Accepted: 12/25/2021] [Indexed: 11/29/2022]
Abstract
BACKGROUND Whether Dermatophagoides pteronyssinus (Der-p) allergen immunotherapy (AIT) can induce Dermatophagoides farina (Der-f) specific immunoglobulin (sIg) G4 production and tolerance to environmental allergens has not been fully investigated. OBJECTIVE We aimed to determine serum Der-p-sIgG4 and Der-f-sIgG4 levels in asthma and/or rhinitis patients undergoing Der-p AIT and their ability to reduce immune responses triggered by indoor-dust extracts. METHODS We performed a real-world prospective trial and enrolled patients with allergic rhinitis and/or asthma in Guangzhou, China. These patients received either Der-p AIT (SCIT group) or routine medications (non-SCIT group) for 156 weeks. Clinical outcomes were assessed by the combined symptom medication score (SMS) and FEV1 % changes. House dust samples were collected to analyze allergen levels. Serum levels of Der-p-sIgG4 and Der-f-sIgG4, serum inhibitory capacity against Der-p, Der-f, and indoor dust extract by sIgE-facilitated allergen binding to B cells (IgE-FAB), and serum blocking indoor dust extract-induced basophil activation inhibition assays (BATI) in peripheral blood monocytes were carried out at weeks 0, 4, 12, 16, 52, 104, and 156 after the initiations of the treatments. RESULTS Our study enrolled a total of 60 participants, with 30 patients in each group. Patients in the SCIT group had significantly improved SMS when compared with the baseline and the patients in the non-SCIT group. Median levels of Der-p 1 and Der-f 1 in indoor dust extract were 1.86 μg/g and 4.74 μg/g, respectively. Serum Der-p-sIgG4 and Der-f-IgG4 levels in SCIT patients showed a significant increase from week 12 to week 156. Serum in these SCIT patients could significantly block Der-p, Der-f, and indoor dust extract formation of allergen-sIgE complex and reduced the threshold of IgE-FAB from 16 weeks after the initiation of the treatment. The capacity to inhibit Der-p, Der-f, and indoor dust extract BATI was observed in SCIT serum after 12 weeks. Der-p-sIgG4 and Der-f-sIgG4 had a significant correlation with IgE-FAB and BATI in SCIT patients at all time points. CONCLUSION Single Der-p immunotherapy induced both Der-p-sIgG4 and Der-f-sIgG4 production, which might cross-reactively induce tolerance against environmental allergen exposure in patients with asthma and/or rhinitis.
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Affiliation(s)
- Mulin Feng
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,People's Hospital of Yangjiang, Yangjiang, China
| | - Tian Luo
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Mo Xian
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xu Shi
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Rundong Qin
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Xiaohui Zeng
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Qiujuan Su
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jing Li
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.,People's Hospital of Yangjiang, Yangjiang, China.,Guangdong Provincial Key Laboratory of Allergy and Clinical Immunology, Guangzhou Medical University, Guangzhou, China
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114
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Ye Q, Wang B, Liu H. Influence of the COVID-19 pandemic on the incidence and exacerbation of childhood allergic diseases. J Med Virol 2021; 94:1655-1669. [PMID: 34931330 DOI: 10.1002/jmv.27536] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 12/14/2021] [Accepted: 12/19/2021] [Indexed: 12/15/2022]
Abstract
To explore the influence of changes in human lifestyle and the living environment caused by nonpharmaceutical interventions in coronavirus disease 2019 (COVID-19) on allergic diseases, the present study enrolled children who came to the Children's Hospital of Zhejiang University for allergen detection between January 2019 and December 2020. By comparing the positive rates and levels of various allergen-specific immunoglobulin E (IgE) before and during the COVID-19 pandemic, the influence of changes in human lifestyle and the living environment caused by prevention and control measures in COVID-19 on allergic diseases was evaluated. In 2019, 41 648 allergic children went to the hospital, but in 2020, due to the impact of the COVID-19 epidemic, the number decreased to 24 714. In 2020, the number of allergy visits was the lowest in February and gradually increased. There were 45 879 children with total IgE > 17.5 IU/ml in 2 years, accounting for 69.13% of the total samples, of which the proportion was 68.52% (28 536/41 648) in 2019 and 70.17% (17 343/24 714) in 2020. A total of 29 906 children were positive for one or more allergens in 2 years. It accounts for 45.06% of the total number of samples, of which the proportion is 41.53% (17 296/41 648) in 2019 and 51.02% (12 610/24 714) in 2020. Except for cashew nuts, the positive number of other allergens in 2020 was less than in 2019, especially after June and July 2020. Except for Artemisia argyi, the positive rates of other allergens in 2020 were significantly higher than those in 2019 (p < 0.05). Moreover, the changing trend of the positive allergen rate in each month in 2020 was different from that in 2019. In 2020, except for Dermatophagoides farinae, Dermatophagoides pteronyssinus, and Crab, specific IgE levels of other allergens were not greater than those in 2019 (p < 0.05). Thus it can be seen, during the COVID-19 pandemic, nonpharmaceutical interventions played a protective role in reducing children's exposure to allergens and alleviating allergic reactions.
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Affiliation(s)
- Qing Ye
- The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, Zhejiang, China
| | - Bili Wang
- The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, Zhejiang, China
| | - Huihui Liu
- The Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center for Child Health, National Children's Regional Medical Center, Hangzhou, Zhejiang, China
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Wang Y, Ding Y, Li C, Gao J, Wang X, An H. Alpha-linolenic acid inhibits IgE-mediated anaphylaxis by inhibiting Lyn kinase and suppressing mast cell activation. Int Immunopharmacol 2021; 103:108449. [PMID: 34929479 DOI: 10.1016/j.intimp.2021.108449] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/28/2021] [Accepted: 12/05/2021] [Indexed: 12/11/2022]
Abstract
Excessive reactions to allergens can induce systemic, life-threatening physiological dysfunction (anaphylaxis) in humans. The surface of mast cells expresses high-affinity IgE receptors that play a vital role during anaphylaxis. Alpha-linolenic acid (ALA) is an essential non-toxic fatty acid in humans. Since it has been reported having potential to regulate pro-inflammatory reactions, we postulated that ALA could inhibit anaphylaxis by down-regulating Lyn kinase phosphorylation. We found that local and systematic inflammation induced by albumin from chicken egg white (OVA) were attenuated by ALA in vivo. Furthermore, ALA inhibited IgE-mediated Ca2+ mobilization, degranulation, and cytokine release in Laboratory of Allergic Disease 2 (LAD2) cells. The western blot results showed that ALA down-regulate the FcεRI/Lyn/Syk signaling pathway by suppressing Lyn kinase activity. Therefore, ALA could serve as a therapeutic drug candidate for preventing IgE-mediated anaphylaxis.
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Affiliation(s)
- Yuejin Wang
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; College of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Yuanyuan Ding
- College of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Chaomei Li
- College of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Jiapan Gao
- College of Pharmacy, Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China
| | - Xiaodong Wang
- Shaanxi Institute of Medical Device Quality Inspection, Xi'an, Shaanxi 712046, China
| | - Hongli An
- Center for Translational Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Key Laboratory for Tumor Precision Medicine of Shaanxi Province, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.
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de Carvalho-Pinto RM, Cançado JED, Pizzichini MMM, Fiterman J, Rubin AS, Cerci A, Cruz ÁA, Fernandes ALG, Araujo AMS, Blanco DC, Cordeiro G, Caetano LSB, Rabahi MF, de Menezes MB, de Oliveira MA, Lima MA, Pitrez PM. 2021 Brazilian Thoracic Association recommendations for the management of severe asthma. J Bras Pneumol 2021; 47:e20210273. [PMID: 34932721 PMCID: PMC8836628 DOI: 10.36416/1806-3756/e20210273] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 08/05/2021] [Indexed: 12/20/2022] Open
Abstract
Advances in the understanding that severe asthma is a complex and heterogeneous disease and in the knowledge of the pathophysiology of asthma, with the identification of different phenotypes and endotypes, have allowed new approaches for the diagnosis and characterization of the disease and have resulted in relevant changes in pharmacological management. In this context, the definition of severe asthma has been established, being differentiated from difficult-to-control asthma. These recommendations address this topic and review advances in phenotyping, use of biomarkers, and new treatments for severe asthma. Emphasis is given to topics regarding personalized management of the patient and selection of biologicals, as well as the importance of evaluating the response to treatment. These recommendations apply to adults and children with severe asthma and are targeted at physicians involved in asthma treatment. A panel of 17 Brazilian pulmonologists was invited to review recent evidence on the diagnosis and management of severe asthma, adapting it to the Brazilian reality. Each of the experts was responsible for reviewing a topic or question relevant to the topic. In a second phase, four experts discussed and structured the texts produced, and, in the last phase, all experts reviewed and approved the present manuscript and its recommendations.
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Affiliation(s)
- Regina Maria de Carvalho-Pinto
- . Divisão de Pneumologia, Instituto do Coração − InCor − Hospital das Clínicas, Faculdade de Medicina, Universidade de São Paulo, São Paulo (SP) Brasil
| | | | | | - Jussara Fiterman
- . Hospital São Lucas, Pontifícia Universidade Católica do Rio Grande do Sul − PUCRS − Porto Alegre (RS) Brasil
| | - Adalberto Sperb Rubin
- . Universidade Federal de Ciências da Saúde de Porto Alegre − UFCSPA − Porto Alegre (RS) Brasil
- . Santa Casa de Misericórdia de Porto Alegre, Porto Alegre (RS) Brasil
| | - Alcindo Cerci
- . Universidade Estadual de Londrina − UEL − Londrina (PR) Brasil
- . Pontifícia Universidade Católica do Paraná − PUCPR − Londrina (PR) Brasil
| | - Álvaro Augusto Cruz
- . Universidade Federal da Bahia − UFBA − Salvador (BA) Brasil
- . Fundação ProAR, Salvador (BA) Brasil
| | | | - Ana Maria Silva Araujo
- . Instituto de Doenças do Tórax, Universidade Federal do Rio de Janeiro − IDT/UFRJ − Rio de Janeiro (RJ) Brasil
| | - Daniela Cavalet Blanco
- . Escola de Medicina, Pontifícia Universidade Católica do Rio Grande do Sul − PUCRS − Porto Alegre (RS), Brasil
| | - Gediel Cordeiro
- . Hospital Júlia Kubitschek, Fundação Hospitalar do Estado de Minas Gerais - FHEMIG - Belo Horizonte (MG) Brasil
- . Hospital Madre Teresa, Belo Horizonte (MG) Brasil
| | | | - Marcelo Fouad Rabahi
- . Faculdade de Medicina, Universidade Federal de Goiás − UFG − Goiânia (GO) Brasil
| | - Marcelo Bezerra de Menezes
- . Departamento de Clínica Médica, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto (SP) Brasil
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Shamji MH, Valenta R, Jardetzky T, Verhasselt V, Durham SR, Würtzen PA, van Neerven RJ. The role of allergen-specific IgE, IgG and IgA in allergic disease. Allergy 2021; 76:3627-3641. [PMID: 33999439 PMCID: PMC8601105 DOI: 10.1111/all.14908] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2021] [Revised: 05/03/2021] [Accepted: 05/10/2021] [Indexed: 12/28/2022]
Abstract
Immunoglobulin E (IgE)‐mediated allergy is the most common hypersensitivity disease affecting more than 30% of the population. Exposure to even minute quantities of allergens can lead to the production of IgE antibodies in atopic individuals. This is termed allergic sensitization, which occurs mainly in early childhood. Allergen‐specific IgE then binds to the high (FcεRI) and low‐affinity receptors (FcεRII, also called CD23) for IgE on effector cells and antigen‐presenting cells. Subsequent and repeated allergen exposure increases allergen‐specific IgE levels and, by receptor cross‐linking, triggers immediate release of inflammatory mediators from mast cells and basophils whereas IgE‐facilitated allergen presentation perpetuates T cell–mediated allergic inflammation. Due to engagement of receptors which are highly selective for IgE, even tiny amounts of allergens can induce massive inflammation. Naturally occurring allergen‐specific IgG and IgA antibodies usually recognize different epitopes on allergens compared with IgE and do not efficiently interfere with allergen‐induced inflammation. However, IgG and IgA antibodies to these important IgE epitopes can be induced by allergen‐specific immunotherapy or by passive immunization. These will lead to competition with IgE for binding with the allergen and prevent allergic responses. Similarly, anti‐IgE treatment does the same by preventing IgE from binding to its receptor on mast cells and basophils. Here, we review the complex interplay of allergen‐specific IgE, IgG and IgA and the corresponding cell receptors in allergic diseases and its relevance for diagnosis, treatment and prevention of allergy.
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Affiliation(s)
| | - Rudolf Valenta
- Department of Pathophysiology and Allergy Research Medical University of Vienna Vienna Austria
- Laboratory of Immunopathology Department of Clinical Immunology and Allergology Sechenov First Moscow State Medical University Moscow Russia
- NRC Institute of Immunology FMBA of Russia Moscow Russia
- Karl Landsteiner University of Health Sciences Krems Austria
| | | | - Valerie Verhasselt
- School of Molecular Sciences University of Western Australia Perth WA Australia
| | | | | | - R.J. Joost van Neerven
- Wageningen University & Research Wageningen The Netherlands
- FrieslandCampina Amersfoort The Netherlands
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Osborn G, Stavraka C, Adams R, Sayasneh A, Ghosh S, Montes A, Lacy KE, Kristeleit R, Spicer J, Josephs DH, Arnold JN, Karagiannis SN. Macrophages in ovarian cancer and their interactions with monoclonal antibody therapies. Clin Exp Immunol 2021; 209:4-21. [PMID: 35020853 PMCID: PMC9307234 DOI: 10.1093/cei/uxab020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 10/26/2021] [Accepted: 11/19/2021] [Indexed: 12/31/2022] Open
Abstract
Abstract
The unmet clinical need for effective treatments in ovarian cancer has yet to be addressed using monoclonal antibodies (mAbs), which have largely failed to overcome tumour-associated immunosuppression, restrict cancer growth, and significantly improve survival. In recent years, experimental mAb design has moved away from solely targeting ovarian tumours and instead sought to modulate the wider tumour microenvironment (TME). Tumour-associated macrophages (TAMs) may represent an attractive therapeutic target for mAbs in ovarian cancer due to their high abundance and close proximity to tumour cells and their active involvement in facilitating several pro-tumoural processes. Moreover, the expression of several antibody crystallisable fragment (Fc) receptors and broad phenotypic plasticity of TAMs provide opportunities to modulate TAM polarisation using mAbs to promote anti-tumoural phenotypes. In this review, we discuss the role of TAMs in ovarian cancer TME and the emerging strategies to target the contributions of these cells in tumour progression through the rationale design of mAbs.
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Affiliation(s)
- Gabriel Osborn
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Chara Stavraka
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom.,Cancer Centre at Guy's, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.,School of Cancer & Pharmaceutical Sciences, King's College London, London, United Kingdom
| | - Rebecca Adams
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Ahmad Sayasneh
- Department of Gynecological Oncology, Surgical Oncology Directorate, Guy's and St Thomas' NHS Foundation Trust, School of Life Course Sciences, King's College London, London, United Kingdom
| | - Sharmistha Ghosh
- Cancer Centre at Guy's, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Ana Montes
- Cancer Centre at Guy's, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - Katie E Lacy
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom
| | - Rebecca Kristeleit
- Cancer Centre at Guy's, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom
| | - James Spicer
- School of Cancer & Pharmaceutical Sciences, King's College London, London, United Kingdom
| | - Debra H Josephs
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom.,Cancer Centre at Guy's, Guy's and St Thomas' NHS Foundation Trust, London, United Kingdom.,School of Cancer & Pharmaceutical Sciences, King's College London, London, United Kingdom
| | - James N Arnold
- School of Cancer & Pharmaceutical Sciences, King's College London, London, United Kingdom
| | - Sophia N Karagiannis
- St. John's Institute of Dermatology, School of Basic & Medical Biosciences, King's College London, London, United Kingdom.,Breast Cancer Now Research Unit, School of Cancer & Pharmaceutical Sciences, King's College London, Guy's Cancer Centre, London, United Kingdom
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119
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Bodík M, Mackuľak T, Feher M, Staňová AV, Grabicová K, Varjúová D, Bodík I. Searching for the correlations between the use of different groups of pharmaceuticals from wastewaters. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2021; 228:112973. [PMID: 34794023 DOI: 10.1016/j.ecoenv.2021.112973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/12/2021] [Accepted: 11/03/2021] [Indexed: 06/13/2023]
Abstract
Wastewater contains a wealth of information about the inhabitants of cities. Wastewater-based epidemiology (WBE) has become an effective tool for monitoring public health by analyzing various biomarkers (e.g., chemicals and microorganisms) in wastewater. This way, the estimation of pharmaceuticals' consumption behavior and/or illicit drugs can be calculated. However, monitoring consumption alone is not the only option. If we consider wastewater as a statistical representation of the population's health, medical information can be derived. In this work, we used data from 15 different wastewater treatment plants in Slovak Republic to explore correlations between the use of typical pharmaceuticals and illicit drugs. The analysis was based on the wastewater monitoring data from four years (2016-2019), and 68 different compounds were taken into account. One of the strongest correlations found was between Antihyperlipidemics and Antihypertensives, with Pearson's correlation coefficient of 0.82. This type of analysis within the WBE represents a new potential as an additional source of information for the pharmaceutical, medical and government sectors in assessing health risk factors in the population. Such an evaluation method has even a great potential for artificial intelligence and machine learning for calculating health risk factors together with other sources of data.
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Affiliation(s)
- Michal Bodík
- Nanotechnology group, ETH Zürich, Säumerstrasse 4, CH-8803 Rüschlikon, Switzerland.
| | - Tomáš Mackuľak
- Department of Environmental Engineering, Faculty of Chemistry and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovak Republic
| | - Miroslav Feher
- Department of Environmental Engineering, Faculty of Chemistry and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovak Republic
| | - Andrea Vojs Staňová
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic; Department of Analytical Chemistry, Faculty of Natural Sciences, Comenius University, Ilkovičova 6, 842 15 Bratislava, Slovak Republic
| | - Kateřina Grabicová
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Zátiší 728/II, 389 25 Vodňany, Czech Republic
| | - Dóra Varjúová
- Department of Environmental Engineering, Faculty of Chemistry and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovak Republic
| | - Igor Bodík
- Department of Environmental Engineering, Faculty of Chemistry and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, 812 37 Bratislava, Slovak Republic
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120
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Cao H, Xiao C, He Z, Huang H, Tang H. IgE and TGF-β Signaling: From Immune to Cardiac Remodeling. J Inflamm Res 2021; 14:5523-5526. [PMID: 34737601 PMCID: PMC8560010 DOI: 10.2147/jir.s332591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/30/2021] [Indexed: 11/23/2022] Open
Abstract
Cardiac remodeling is accompanied by cardiac hypertrophy, fibrosis, and dysfunction, eventually leading to heart failure (HF). However, the molecular mechanisms involved in cardiac remodeling are complicated, especially the association with immune. Immunoglobulin E (IgE) is a class of immunoglobulins involved in immune response to specific allergens. Recently, Zhao et al characterized a novel specific role of IgE and its high affinity receptor (FcεR1) in directly promoting pathological myocardial remodeling and cardiac dysfunction. Additionally, upon blocking IgE-FcεR1 signaling using FcεR1 genetic depletion or by administrating the anti-IgE monoclonal antibody omalizumab (Oma) in mice, they observed that cardiac hypertrophy and cardiac interstitial fibrosis induced by angiotensin II (Ang II) or transverse aortic constriction (TAC) were significantly suppressed. In contrast, IgE administration alone can aggravate pathological cardiac remodeling and dysfunction. RNA-seq and downstream analysis indicated that TGF-β was the common pathway and the most pivotal mediator in IgE-FcεR1-induced cardiac remodeling and dysfunction. Furthermore, the administration of a TGF-β inhibitor could ameliorate cardiac remodeling and improve cardiac function. Therefore, these findings suggest that IgE-FcεR1 maybe promising therapeutic targets for cardiac remodeling and provide an experimental basis for the use of omalizumab for HF patients combined with high serum IgE levels or allergic diseases.
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Affiliation(s)
- Hua Cao
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Chungang Xiao
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Zhangxiu He
- The First Affiliated Hospital, Department of Nephrology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Hong Huang
- The First Affiliated Hospital, Institute of Clinical Medicine, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.,The First Affiliated Hospital, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
| | - Huifang Tang
- The First Affiliated Hospital, Department of Cardiology, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China.,The First Affiliated Hospital, Institute of Cardiovascular Disease, Hengyang Medical School, University of South China, Hengyang, Hunan, 421001, People's Republic of China
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121
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Tong P, Xu X, Liu K, Chen H, Gao J. Denatured pre-treatment assisted polyphenol oxidase-catalyzed cross-linking: effects on the cross-linking potential, structure, allergenicity and functional properties of OVA. Food Funct 2021; 12:10083-10096. [PMID: 34518852 DOI: 10.1039/d1fo01809d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
To evaluate the impacts of denatured pre-treatments (heating and denaturants) on cross-linking and the combined effect of pre-treatment and cross-linking on the structure, allergenicity and functional properties of OVA, OVA was pre-treated in different ways and then cross-linked. Results showed that the cross-linking reaction was obviously promoted with heating at 100 °C for 5 min or 0.5% of SDS as the pretreatment. Due to the coordinated process of pre-treatments and cross-linking, the secondary structure was changed and the gastrointestinal digestion of OVA was promoted. Meanwhile, the emulsifying properties, foaming properties, and antioxidant properties of OVA were remarkably improved. Furthermore, the IgG and IgE binding capacities of OVA, as well as the OVA-induced degranulation capacity of KU812 were all significantly decreased. However, upon comparing the cross-linking assisted by two different pre-treatments, it was seen that heating at 100 °C for 5 min was better than being treated with 0.5% of SDS in reducing the potential allergenicity of OVA. Therefore, we concluded that heat denaturation (at 100 °C for 5 min) assisted enzymatic cross-linking may provide a new cross-linking method to develop hypoallergenic foods with good functional properties.
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Affiliation(s)
- Ping Tong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China.
| | - Xiaoqian Xu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China. .,College of Food Science & Technology, Nanchang University, Nanchang 330031, P R. China.
| | - Ke Liu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China. .,College of Food Science & Technology, Nanchang University, Nanchang 330031, P R. China.
| | - Hongbing Chen
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P.R. China. .,Jiangxi-OAI Joint Research Institute, Nanchang University, Nanchang 330047, P.R. China
| | - Jinyan Gao
- College of Food Science & Technology, Nanchang University, Nanchang 330031, P R. China.
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122
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Breeding Canola ( Brassica napus L.) for Protein in Feed and Food. PLANTS 2021; 10:plants10102220. [PMID: 34686029 PMCID: PMC8539702 DOI: 10.3390/plants10102220] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 10/03/2021] [Accepted: 10/11/2021] [Indexed: 01/12/2023]
Abstract
Interest in canola (Brassica napus L.). In response to this interest, scientists have been tasked with altering and optimizing the protein production chain to ensure canola proteins are safe for consumption and economical to produce. Specifically, the role of plant breeders in developing suitable varieties with the necessary protein profiles is crucial to this interdisciplinary endeavour. In this article, we aim to provide an overarching review of the canola protein chain from the perspective of a plant breeder, spanning from the genetic regulation of seed storage proteins in the crop to advancements of novel breeding technologies and their application in improving protein quality in canola. A review on the current uses of canola meal in animal husbandry is presented to underscore potential limitations for the consumption of canola meal in mammals. General discussions on the allergenic potential of canola proteins and the regulation of novel food products are provided to highlight some of the challenges that will be encountered on the road to commercialization and general acceptance of canola protein as a dietary protein source.
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123
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Srivastava A, Arlian BM, Pang L, Kishimoto TK, Paulson JC. Tolerogenic Nanoparticles Impacting B and T Lymphocyte Responses Delay Autoimmune Arthritis in K/BxN Mice. ACS Chem Biol 2021; 16:1985-1993. [PMID: 34037371 PMCID: PMC8526371 DOI: 10.1021/acschembio.1c00212] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Current treatments for unwanted antibody responses largely rely on immunosuppressive drugs compromising overall immunity. New approaches to achieve antigen-specific tolerance are desirable to avoid unwanted side effects. Several nanoparticle-based approaches that utilize different mechanisms to tolerize the B or T cell arms of the humoral immune response have shown promise for induction of antigen-specific tolerance, raising the possibility that they could work synergistically if combined. Earlier we showed that Siglec-engaging tolerance-inducing antigenic liposomes (STALs) that display both an antigen (Ag) and glycan ligands of the inhibitory co-receptor CD22 (CD22L) lead to robust antigen-specific B cell tolerance to protein antigens in naive mice. In another approach, administration of free Ag with poly(lactic-co-glycolic acid)-rapamycin nanoparticles (PLGA-R) induced robust antigen-specific tolerance through production of regulatory T cells. Here we illustrate that coadministration of STALs together with PLGA-R to naive mice induced more robust tolerance to multiple antigen challenges than either nanoparticle alone. Moreover, in K/BxN mice that develop spontaneous autoimmune arthritis to the self-antigen glucose-6-phosphate-isomerase (GPI), co-delivery of GPI-LP-CD22L and PLGA-R delayed onset of disease and in some mice prevented the disease indefinitely. The results show synergy between B cell-tolerizing STALs and T cell-tolerizing PLGA-R and the potential to induce tolerance in early stage autoimmune disease.
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Affiliation(s)
- Amrita Srivastava
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Britni M. Arlian
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | - Lijuan Pang
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
| | | | - James C. Paulson
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA 92037, USA
- Department of Immunology and Microbiology, The Scripps Research Institute, La Jolla, CA 92037, USA
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124
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Shu T, Xing Y, Wang J. Autoimmunity in Pulmonary Arterial Hypertension: Evidence for Local Immunoglobulin Production. Front Cardiovasc Med 2021; 8:680109. [PMID: 34621794 PMCID: PMC8490641 DOI: 10.3389/fcvm.2021.680109] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2021] [Accepted: 08/12/2021] [Indexed: 12/12/2022] Open
Abstract
Pulmonary arterial hypertension (PAH) is a progressive life-threatening disease. The notion that autoimmunity is associated with PAH is widely recognized by the observations that patients with connective tissue diseases or virus infections are more susceptible to PAH. However, growing evidence supports that the patients with idiopathic PAH (IPAH) with no autoimmune diseases also have auto-antibodies. Anti-inflammatory therapy shows less help in decreasing auto-antibodies, therefore, elucidating the process of immunoglobulin production is in great need. Maladaptive immune response in lung tissues is considered implicating in the local auto-antibodies production in patients with IPAH. In this review, we will discuss the specific cell types involved in the lung in situ immune response, the potential auto-antigens, and the contribution of local immunoglobulin production in PAH development, providing a theoretical basis for drug development and precise treatment in patients with PAH.
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Affiliation(s)
- Ting Shu
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Yanjiang Xing
- State Key Laboratory of Medical Molecular Biology, Department of Physiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
| | - Jing Wang
- State Key Laboratory of Medical Molecular Biology, Department of Pathophysiology, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
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125
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Huang J, Chen X, Xie A. Formononetin ameliorates IL‑13‑induced inflammation and mucus formation in human nasal epithelial cells by activating the SIRT1/Nrf2 signaling pathway. Mol Med Rep 2021; 24:832. [PMID: 34590155 PMCID: PMC8503736 DOI: 10.3892/mmr.2021.12472] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2021] [Accepted: 06/28/2021] [Indexed: 01/18/2023] Open
Abstract
Formononetin has proven to be anti‑inflammatory and able to alleviate symptoms of certain allergic diseases. The present study aimed to determine and elucidate the potential effects of formononetin in allergic rhinitis. JME/CF15 cells were pretreated with formononetin at different doses, followed by stimulation with IL‑13. Cell Counting Kit‑8 assay was performed to determine the cytotoxicity of formononetin. The expression levels of inflammation‑related proteins, histamine, IgE, TNF‑α, IL‑1β, IL‑6, granulocyte‑macrophage colony‑stimulating factor and eotaxin in IL‑13‑stimulated JME/CF15 cells were detected using ELISAs. The expression levels of phosphorylated‑NF‑κB p65, NF‑κB p65 and cyclooxygenase‑2 (Cox‑2) were analyzed using western blotting. Reverse transcription‑quantitative PCR, western blotting and immunofluorescence were performed to measure the levels of mucin 5AC oligomeric mucus/gel‑forming. Expression levels of sirtuin 1 (SIRT1) and nuclear erythroid factor 2‑related factor 2 (Nrf2) proteins were also measured using western blotting. The results of the present study revealed that formononetin exerted no cytotoxic effect on the viability of JME/CF15 cells. Following stimulation of JME/CF15 cells with IL‑13, formononetin suppressed the upregulated expression levels of proinflammatory cytokines. IL‑13‑induced formation of mucus was also attenuated by formononetin treatment. Furthermore, it was found that the SIRT1/Nrf2 signaling pathway was activated in formononetin‑treated JME/CF15 cells, whereas treatment with the SIRT1 inhibitor, EX527, reversed the effects of formononetin on IL‑13‑induced inflammation and mucus formation in JME/CF15 cells. In conclusion, the findings of the current study indicated that formononetin may activate the SIRT1/Nrf2 signaling pathway, thereby inhibiting IL‑13‑induced inflammation and mucus formation in JME/CF15 cells. These results suggested that formononetin may represent a promising agent for the treatment of allergic rhinitis.
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Affiliation(s)
- Juanjuan Huang
- Department of Traditional Chinese Medicine, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang 315040, P.R. China
| | - Xianfeng Chen
- Department of Traditional Chinese Medicine, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang 315040, P.R. China
| | - Aihua Xie
- Department of Traditional Chinese Medicine, The Affiliated People's Hospital of Ningbo University, Ningbo, Zhejiang 315040, P.R. China
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126
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Zhu X, Cao Y, Su M, Chen M, Li C, Yi L, Qin J, Tulake W, Teng F, Zhong Y, Tang W, Wang S, Dong J. Cycloastragenol alleviates airway inflammation in asthmatic mice by inhibiting autophagy. Mol Med Rep 2021; 24:805. [PMID: 34542166 PMCID: PMC8477186 DOI: 10.3892/mmr.2021.12445] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Accepted: 08/11/2021] [Indexed: 12/19/2022] Open
Abstract
Cycloastragenol (CAG), a secondary metabolite from the roots of Astragalus zahlbruckneri, has been reported to exert anti-inflammatory effects in heart, skin and liver diseases. However, its role in asthma remains unclear. The present study aimed to investigate the effect of CAG on airway inflammation in an ovalbumin (OVA)-induced mouse asthma model. The current study evaluated the lung function and levels of inflammation and autophagy via measurement of airway hyperresponsiveness (AHR), lung histology examination, inflammatory cytokine measurement and western blotting, amongst other techniques. The results demonstrated that CAG attenuated OVA-induced AHR in vivo. In addition, the total number of leukocytes and eosinophils, as well as the secretion of inflammatory cytokines, including interleukin (IL)-5, IL-13 and immunoglobulin E were diminished in bronchoalveolar lavage fluid of the OVA-induced murine asthma model. Histological analysis revealed that CAG suppressed inflammatory cell infiltration and goblet cell secretion. Notably, based on molecular docking simulation, CAG was demonstrated to bind to the active site of autophagy-related gene 4-microtubule-associated proteins light chain 3 complex, which explains the reduced autophagic flux in asthma caused by CAG. The expression levels of proteins associated with autophagy pathways were inhibited following treatment with CAG. Taken together, the results of the present study suggest that CAG exerts an anti-inflammatory effect in asthma, and its role may be associated with the inhibition of autophagy in lung cells.
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Affiliation(s)
- Xueyi Zhu
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Yuxue Cao
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Mingyue Su
- Department of Pulmonary Diseases and Oncology, Pu'er Hospital of Traditional Chinese Medicine, Kunming, Yunnan 665000, P.R. China
| | - Mengmeng Chen
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Congcong Li
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - La Yi
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Jingjing Qin
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Wuniqiemu Tulake
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Fangzhou Teng
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Yuanyuan Zhong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Weifeng Tang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Shiyuan Wang
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | - Jingcheng Dong
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
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127
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Tontini C, Bulfone-Paus S. Novel Approaches in the Inhibition of IgE-Induced Mast Cell Reactivity in Food Allergy. Front Immunol 2021; 12:613461. [PMID: 34456900 PMCID: PMC8387944 DOI: 10.3389/fimmu.2021.613461] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Accepted: 06/23/2021] [Indexed: 01/21/2023] Open
Abstract
Allergy is an IgE-dependent type-I hypersensitivity reaction that can lead to life-threatening systemic symptoms such as anaphylaxis. In the pathogenesis of the allergic response, the common upstream event is the binding of allergens to specific IgE, inducing cross-linking of the high-affinity FcεRI on mast cells, triggering cellular degranulation and the release of histamine, proteases, lipids mediators, cytokines and chemokines with inflammatory activity. A number of novel therapeutic options to curb mast cell activation are in the pipeline for the treatment of severe allergies. In addition to anti-IgE therapy and allergen-specific immunotherapy, monoclonal antibodies targeted against several key Th2/alarmin cytokines (i.e. IL-4Rα, IL-33, TSLP), active modification of allergen-specific IgE (i.e. inhibitory compounds, monoclonal antibodies, de-sialylation), engagement of inhibitory receptors on mast cells and allergen-specific adjuvant vaccines, are new promising options to inhibit the uncontrolled release of mast cell mediators upon allergen exposure. In this review, we critically discuss the novel approaches targeting mast cells limiting allergic responses and the immunological mechanisms involved, with special interest on food allergy treatment.
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Affiliation(s)
- Chiara Tontini
- Lydia Becker Institute for Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Silvia Bulfone-Paus
- Lydia Becker Institute for Immunology and Inflammation, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom
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128
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Dhong KR, Park HJ. Pediococcus Pentosaceus from the Sweet Potato Fermented Ger-Minated Brown Rice Can Inhibit Type I Hypersensitivity in RBL-2H3 Cell and BALB/c Mice Models. Microorganisms 2021; 9:microorganisms9091855. [PMID: 34576749 PMCID: PMC8469544 DOI: 10.3390/microorganisms9091855] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/26/2021] [Accepted: 08/29/2021] [Indexed: 12/20/2022] Open
Abstract
In this study, the effect of GBR fermented with the Pediococcus pentosaceus SP024 strain on IgE/Ag mediated passive cutaneous anaphylaxis (PCA) was investigated. Protocatechuic acid and trans-ferulic acid levels in GBR-SP024 increased more than those in unfermented GBR, respec-tively. The inhibitory activity of GBR-SP024 on β-hexosaminidase release and the level of proin-flammatory cytokine mRNA expression (tumor necrosis factor-α (TNF-α) and interleukin 4 (IL-4)) was observed in IgE/Ag-stimulated RBL-2H3 cells. Western blot analysis showed that GBR-SP024 significantly inhibited the phosphorylation of the linker for activation of T cell (LAT) and nuclear factor-κB (NF-κB) in IgE/Ag-stimulated RBL-2H3 cells. Further, we investigated the anti-allergic effect of GBR-SP024 using PCA murine model. The number of infiltrated immune cells and degranulated mast cells in GBR-SP024 treated dermis was lower than that in the GBR-treated mice. In addition, mRNA expression of 5-lipoxygenase (5-LOX) in the dermis of ear tissue declined in the GBR-SP024–treated group, compared to that in the GBR group. GBR-SP024 was also more effective than GBR at reducing the levels of IL-33 protein expression in IgE/Ag-stimulated BALB/c mice. Our study suggests the potential usage of GBR-SP024 as a dietary supplement or an adjuvant for treating IgE-dependent-allergic diseases.
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Affiliation(s)
- Kyu-Ree Dhong
- Department of Life Science, College of BioNano, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Korea;
| | - Hye-Jin Park
- Department of Food Science and Biotechnology, College of BioNano Technology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Korea
- Correspondence: ; Tel.: +82-31-750-5382
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129
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Xue M, Xu S, Su L, He S, Wu B, Ji C, Lin L, Nie X, Cai G. Surfactant protein-A inhibits thymic stromal lymphopoietin-mediated T follicular helper cell differentiation and IgE production in asthma. Clin Immunol 2021; 231:108822. [PMID: 34400320 DOI: 10.1016/j.clim.2021.108822] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 07/03/2021] [Accepted: 08/10/2021] [Indexed: 01/16/2023]
Abstract
Lung surfactant protein A (SP-A) is critical for immunomodulation. Thymic stromal lymphopoietin (TSLP)-activated dendritic cells (DCs) drive T follicular helper (Tfh) cells differentiation in allergic asthma. We employed wild-type (WT) and SP-A-/- mice injected with TSLP and ovalbumin (OVA)-activated DCs and challenged with OVA. Compared with WT mice, we showed that allergic inflammation was dramatically increased in SP-A-/- mice. In parallel, both IL-4-producing CD45RA-CXCR5+PD-1+CD4+ cells (Tfh2) and IgE were markedly increased in SP-A-/- mice. Further study showed that SP-A prohibited TSLP activated-DCs from expressing OX40L. When we blocked OX40L-OX40 and IL-4R signaling, the differentiation of Tfh2 and IgE responses in SP-A-/- mice was significantly inhibited. In severe asthma patients, SP-A is dysfunctional in modulating the TSLP-DCs-mediated differentiation of Tfh cells. This study suggests that SP-A acts as a modulator of Tfh differentiation and IgE generation in asthma.
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Affiliation(s)
- Minghui Xue
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai 200025, PR China
| | - Shuqin Xu
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai 200025, PR China
| | - Li Su
- Department of Pharmacy, the Second Military Medical University, Shanghai 200433, PR China
| | - Siwei He
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai 200025, PR China
| | - Beiying Wu
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai 200025, PR China
| | - Cunpeng Ji
- Qindao Raisecare Biological Technology, Qindao, Shangdaong Province 266101, PR China
| | - Lin Lin
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai 200025, PR China
| | - Xiaomeng Nie
- Department of Respiratory Diseases, Changhai Hospital, the Second Military Medical University, Shanghai 200433, PR China.
| | - Gang Cai
- Department of Laboratory Medicine, Ruijin Hospital, Shanghai Jiaotong University Medical School, Shanghai 200025, PR China.
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130
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Chang X, Zha L, Wallimann A, Mohsen MO, Krenger P, Liu X, Vogel M, Bachmann MF. Low-affinity but high-avidity interactions may offer an explanation for IgE-mediated allergen cross-reactivity. Allergy 2021; 76:2565-2574. [PMID: 33866583 PMCID: PMC8361967 DOI: 10.1111/all.14864] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 02/23/2021] [Accepted: 03/14/2021] [Indexed: 12/04/2022]
Abstract
Background Allergy is a global disease with overall frequencies of >20%. Symptoms vary from irritating local itching to life‐threatening systemic anaphylaxis. Even though allergies are allergen‐specific, there is a wide range of cross‐reactivities (eg apple and latex) that remain largely unexplained. Given the abilities of low‐affinity IgG antibodies to inhibit mast cells activation, here we elucidate the minimal affinity of IgE antibodies to induce type I hypersensitivity. Methods Three mature (high‐affinity) IgE antibodies recognizing three distinct epitopes on Fel d 1, the major cat allergen, were back‐mutated to germline conformation, resulting in binding to Fel d 1 with low affinity. The ability of these IgE antibodies to activate mast cells in vitro and in vivo was tested. Results We demonstrate that affinities as low as 10−7 M are sufficient to activate mast cells in vitro and drive allergic reactions in vivo. Low‐affinity IgE antibodies are able to do so, since they bind allergens bivalently on the surface of mast cells, leading to high‐avidity interactions. Conclusions These results suggest that the underlying mechanism of allergen cross‐reactivity may be low‐affinity but high‐avidity binding between IgE antibodies and cross‐reactive allergen.
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Affiliation(s)
- Xinyue Chang
- International Immunology Center Anhui Agricultural University Anhui China
- Immunology RIA, Inselspital University of Bern Bern Switzerland
| | - Lisha Zha
- International Immunology Center Anhui Agricultural University Anhui China
- Immunology RIA, Inselspital University of Bern Bern Switzerland
| | | | - Mona O. Mohsen
- International Immunology Center Anhui Agricultural University Anhui China
| | - Pascal Krenger
- International Immunology Center Anhui Agricultural University Anhui China
| | - Xuelan Liu
- International Immunology Center Anhui Agricultural University Anhui China
- Immunology RIA, Inselspital University of Bern Bern Switzerland
| | - Monique Vogel
- International Immunology Center Anhui Agricultural University Anhui China
| | - Martin F. Bachmann
- International Immunology Center Anhui Agricultural University Anhui China
- Immunology RIA, Inselspital University of Bern Bern Switzerland
- Nuffield Department of Medicine Centre for Cellular and Molecular Physiology (CCMP) The Jenner Institute, University of Oxford Oxford UK
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131
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Stutz R, Meyer C, Kaiser E, Goedicke-Fritz S, Schroeder HW, Bals R, Haertel C, Rogosch T, Kerzel S, Zemlin M. Attenuated asthma phenotype in mice with a fetal-like antigen receptor repertoire. Sci Rep 2021; 11:14199. [PMID: 34244568 PMCID: PMC8270943 DOI: 10.1038/s41598-021-93553-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 06/21/2021] [Indexed: 11/09/2022] Open
Abstract
We hypothesized that the scarcity of N-nucleotides might contribute to the inability of the neonate to mount a robust allergic immune response. To test this, we used terminal deoxyribunucleotidyl Transferase deficient (TdT-/-) mice, which express "fetal-like" T cell receptor and immunoglobulin repertoires with largely germline-encoded CDR3 regions. Intraperitoneal sensitization was followed by aerosol provocation with either PBS or the allergen OVA in both TdT-/- mice and wild-type mice to develop allergic respiratory inflammation. The effects of this procedure were investigated by lung function test, immunological analysis of serum and brochoalveolar lavage. The local TH2 cytokine milieu was significantly attenuated in TdT-/- mice. Within this group, the induction of total IgE levels was also significantly reduced after sensitization. TdT-/- mice showed a tendency toward reduced eosinophilic inflow into the bronchial tubes, which was associated with the elimination of respiratory hyperreactivity. In conclusion, in a murine model of allergic airway inflammation, the expression of fetal-like antigen receptors was associated with potent indications of a reduced ability to mount an asthma phenotype. This underlines the importance of somatically-generated antigen-receptor repertoire diversity in type one allergic immune responses and suggests that the fetus may be protected from allergic responses, at least in part, by controlling N addition.
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Affiliation(s)
- Regine Stutz
- Department of General Pediatrics and Neonatology, Saarland University Medical School, Homburg, Germany
| | - Christopher Meyer
- Department of General Pediatrics and Neonatology, Saarland University Medical School, Homburg, Germany
| | - Elisabeth Kaiser
- Department of General Pediatrics and Neonatology, Saarland University Medical School, Homburg, Germany
| | - Sybelle Goedicke-Fritz
- Department of General Pediatrics and Neonatology, Saarland University Medical School, Homburg, Germany.,Department of Pediatrics, Philipps-University Marburg, Marburg, Germany
| | - Harry W Schroeder
- Department of Medicine, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Robert Bals
- Department of Internal Medicine V-Pulmonology, Allergology and Critical Care Medicine, Saarland University, Saarland University Medical School, Homburg, Germany
| | - Christoph Haertel
- Department of Pediatrics, Würzburg University Medical Center, Würzburg, Germany
| | - Tobias Rogosch
- Department of Pediatrics, Philipps-University Marburg, Marburg, Germany
| | - Sebastian Kerzel
- Department of Pediatrics, Philipps-University Marburg, Marburg, Germany.,Department of Pediatric Pneumology and Allergy, University Children's Hospital Regensburg, Campus St. Hedwig, Regensburg, Germany
| | - Michael Zemlin
- Department of General Pediatrics and Neonatology, Saarland University Medical School, Homburg, Germany. .,Department of Pediatrics, Philipps-University Marburg, Marburg, Germany.
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132
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Amison RT, Page CP. Novel pharmacological therapies for the treatment of bronchial asthma. Minerva Med 2021; 113:31-50. [PMID: 34236157 DOI: 10.23736/s0026-4806.21.07559-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Asthma has long been recognised as a chronic inflammatory disease of the airways, often in response to inhaled allergens prompting inappropriate activation of the immune response. involving a range of cells including mast cells, Th2 lymphocytes and eosinophils and a wide range of inflammatory mediators. First-line therapy for treatment of persistent asthma involves the use of inhaled corticosteroids (ICS) in combination with inhaled β2-agonists enabling both the control of the underlying airways inflammation and a reduction of airway hyperresponsiveness. However, many patients remain symptomatic despite high-dose therapy. There is therefore a continued unmet clinical need to develop specifically new anti-inflammatory therapies for patients with asthma, either as an add-on therapy to ICS or as replacement monotherapies. The success of fixed dose combination inhalers containing both a bronchodilator and an anti-inflammatory drug has also led to the development of "bifunctional" drugs which are molecules specifically designed to have two distinct pharmacological actions based on distinct pharmacophores. In this review we will discuss these different pharmacological approaches under development for the treatment of bronchial asthma and the available pre-clinical and clinical data.
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Affiliation(s)
- Richard T Amison
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Sciences, King's College London, London, UK -
| | - Clive P Page
- Sackler Institute of Pulmonary Pharmacology, Institute of Pharmaceutical Science, School of Cancer and Pharmaceutical Sciences, King's College London, London, UK
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133
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Gregório JF, Rodrigues-Machado MDG, Santos RAS, Carvalho Ribeiro IA, Nunes OM, Aguiar Oliveira IF, Vasconcelos AV, Campagnole-Santos MJ, Magalhães GS. ASTHMA: ROLE OF THE ANGIOTENSIN-(1-7)/MAS PATHWAY IN PATHOPHYSIOLOGY AND THERAPY. Br J Pharmacol 2021; 178:4428-4439. [PMID: 34235725 DOI: 10.1111/bph.15619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/06/2021] [Accepted: 06/30/2021] [Indexed: 11/29/2022] Open
Abstract
The incidence of asthma is a global health problem, requiring studies aimed at developing new treatments to improve clinical management, thereby reducing personal and economic burdens on the health system. Therefore, the discovery of mediators that promote anti-inflammatory and pro-resolutive events are highly desirable to improve lung function and quality of life in asthmatic patients. In that regard, experimental studies have shown that the Angiotensin-(1-7)/Mas receptor of the renin-angiotensin system (RAS) is a potential candidate for the treatment of asthma. Therefore, we reviewed findings related to the function of the Angiotensin-(1-7)/Mas pathway in regulating the processes associated with inflammation and exacerbations in asthma, including leukocyte influx, fibrogenesis, pulmonary dysfunction and resolution of inflammation. Thus, knowledge of the role of the Angiotensin-(1-7)/Mas can help pave the way for the development of new treatments for this disease with high morbidity and mortality through new experimental and clinical trials.
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Affiliation(s)
- Juliana Fabiana Gregório
- Department of Physiology and Biophysics, National Institute of Science and Technology - INCT-Nanobiopharmaceutical, Biological Sciences Institute, Federal University of Minas Gerais
| | | | - Robson A S Santos
- Department of Physiology and Biophysics, National Institute of Science and Technology - INCT-Nanobiopharmaceutical, Biological Sciences Institute, Federal University of Minas Gerais
| | | | - Olivia Mendonça Nunes
- Medical Sciences Faculty of Minas Gerais, Post-Graduation Program in Health Sciences, Belo Horizonte, Brazil
| | | | - Ana Victoria Vasconcelos
- Medical Sciences Faculty of Minas Gerais, Post-Graduation Program in Health Sciences, Belo Horizonte, Brazil
| | - Maria José Campagnole-Santos
- Department of Physiology and Biophysics, National Institute of Science and Technology - INCT-Nanobiopharmaceutical, Biological Sciences Institute, Federal University of Minas Gerais
| | - Giselle Santos Magalhães
- Department of Physiology and Biophysics, National Institute of Science and Technology - INCT-Nanobiopharmaceutical, Biological Sciences Institute, Federal University of Minas Gerais.,Medical Sciences Faculty of Minas Gerais, Post-Graduation Program in Health Sciences, Belo Horizonte, Brazil
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134
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Mfengu MOM, Shauli M, Engwa GA, Musarurwa HT, Sewani-Rusike CR. Lippia javanica (Zumbani) herbal tea infusion attenuates allergic airway inflammation via inhibition of Th2 cell activation and suppression of oxidative stress. BMC Complement Med Ther 2021; 21:192. [PMID: 34225706 PMCID: PMC8256649 DOI: 10.1186/s12906-021-03361-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Accepted: 06/16/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Lippia javanica (lemon bush) is commonly used in the treatment of respiratory ailments, including asthma in southern African countries but there is no scientific evidence to support this claim. This study investigated the anti-inflammatory, antioxidant and anti-asthmatic effects of L. javanica using a rat model of asthma. METHODS A 5% w/v L. javanica tea infusion was prepared and characterised by liquid chromatography-mass spectrometer (LC-MS). Animals were intraperitoneally sensitized with ovalbumin (OVA) and subsequently challenged intranasal with OVA on day 15 except the control group. Animals were grouped (n = 5/group) for treatment: unsensitised control, sensitised control, sensitised + prednisolone and sensitised + L. javanica at 50 mg/kg/day and 100 mg/kg/day - equivalent to 1 and 2 cups of tea per day, respectively. After 2 weeks of treatment, bronchoalveolar lavage fluid (BALF) was collected for total and differential white blood cell (WBC) count. Nitric oxide (NO), lipid peroxidation and antioxidants were also assessed in BALF. Ovalbumin specific IgE antibody and inflammatory cytokines: IL-4, IL-5, IL-13 and TNF-alpha were measured in serum. Lung and muscle tissues were histological examined. RESULTS L. javanica was rich in phenolic compounds. OVA sensitisation resulted in development of allergic asthma in rats. L. javanica treatment resulted in a reduction in total WBC count as well as eosinophils, lymphocytes and neutrophils in BALF. L. javanica inhibited Th2-mediated immune response, which was evident by a decrease in serum IgE and inflammatory cytokines: IL-4, IL-5, IL-13 and TNF-α. L. javanica treatment also reduced malondialdehyde (MDA) and NO, and increased superoxide dismutase, glutathione and total antioxidant capacity. Histology showed significant attenuation of lung infiltration of inflammatory cells, alveolar thickening, and bronchiole smooth muscle thickening. CONCLUSION L. javanica suppressed allergic airway inflammation by reducing Th2-mediated immune response and oxidative stress in OVA-sensitized rats which may be attributed to the presence of phenolic compound in the plant. This finding validates the traditional use of L. javanica in the treatment of respiratory disorders.
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Affiliation(s)
- Mvuyisi O M Mfengu
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University PBX1, 5117, Mthatha, South Africa
| | - Mathulo Shauli
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University PBX1, 5117, Mthatha, South Africa
| | - Godwill A Engwa
- Department of Biological and Environmental Sciences, Faculty of Natural Sciences, Walter Sisulu University PBX1, 5117, Mthatha, South Africa
| | - Hannibal T Musarurwa
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University PBX1, 5117, Mthatha, South Africa
| | - Constance R Sewani-Rusike
- Department of Human Biology, Faculty of Health Sciences, Walter Sisulu University PBX1, 5117, Mthatha, South Africa.
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135
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Pointner LN, Ferreira F, Aglas L. B Cell Functions in the Development of Type I Allergy and Induction of Immune Tolerance. Handb Exp Pharmacol 2021; 268:249-264. [PMID: 34196808 DOI: 10.1007/164_2021_479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
B cells are key players in the mechanisms underlying allergic sensitization, allergic reactions, and tolerance to allergens. Allergen-specific immune responses are initiated when peptide:MHCII complexes on dendritic cells are recognized by antigen-specific receptors on T cells followed by interactions between costimulatory molecules on the surfaces of B and T cells. In the presence of IL-4, such T-B cell interactions result in clonal expansion and isotype class-switching to IgE in B cells, which will further differentiate into either memory B cells or PCs. Allergic reactions are then triggered upon cross-linking of IgE-FcɛRI complexes on basophils and mast cells, leading to cell degranulation and the release of pro-inflammatory mediators.Mechanisms underlying effective allergen-specific immunotherapy (AIT) involve the induction of Tregs and the secretion of blocking IgG4 antibodies, which together mediate the onset and maintenance of immune tolerance towards non-hazardous environmental antigens. However, the importance of regulatory B cells (Breg) for tolerance induction during AIT has gained more attention lately. Studies in grass pollen- and house dust mite-allergic patients undergoing SCIT reported increased frequencies of IL-10+ Breg cells and a positive correlation between their number and the improvement of clinical symptoms. Thus, Breg are emerging as biomarkers for monitoring tolerance to allergens under natural exposure conditions and during AIT. Further research on the role of other anti-inflammatory cytokines secreted by Breg will help to understand their role in disease development and tolerance induction.
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Affiliation(s)
| | - Fatima Ferreira
- Biosciences Department, University of Salzburg, Salzburg, Austria.
| | - Lorenz Aglas
- Biosciences Department, University of Salzburg, Salzburg, Austria
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136
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Ilkow VF, Davies AM, Dhaliwal B, Beavil AJ, Sutton BJ, McDonnell JM. Reviving lost binding sites: Exploring calcium-binding site transitions between human and murine CD23. FEBS Open Bio 2021; 11:1827-1840. [PMID: 34075727 PMCID: PMC8255853 DOI: 10.1002/2211-5463.13214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 05/21/2021] [Accepted: 05/31/2021] [Indexed: 11/27/2022] Open
Abstract
Immunoglobulin E (IgE) is a central regulatory and triggering molecule of allergic immune responses. IgE's interaction with CD23 modulates both IgE production and functional activities.CD23 is a noncanonical immunoglobulin receptor, unrelated to receptors of other antibody isotypes. Human CD23 is a calcium-dependent (C-type) lectin-like domain that has apparently lost its carbohydrate-binding capability. The calcium-binding site classically required for carbohydrate binding in C-type lectins is absent in human CD23 but is present in the murine molecule. To determine whether the absence of this calcium-binding site affects the structure and function of human CD23, CD23 mutant proteins with increasingly "murine-like" sequences were generated. Restoration of the calcium-binding site was confirmed by NMR spectroscopy, and structures of mutant human CD23 proteins were determined by X-ray crystallography, although no electron density for calcium was observed. This study offers insights into the evolutionary differences between murine and human CD23 and some of the functional differences between CD23 in different species.
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Affiliation(s)
- Veronica F. Ilkow
- Randall Centre for Cell & Molecular BiophysicsKing’s College LondonUK
- Asthma UK Centre in Allergic Mechanisms of AsthmaLondonUK
| | - Anna M. Davies
- Randall Centre for Cell & Molecular BiophysicsKing’s College LondonUK
- Asthma UK Centre in Allergic Mechanisms of AsthmaLondonUK
| | - Balvinder Dhaliwal
- Randall Centre for Cell & Molecular BiophysicsKing’s College LondonUK
- Asthma UK Centre in Allergic Mechanisms of AsthmaLondonUK
| | - Andrew J. Beavil
- Randall Centre for Cell & Molecular BiophysicsKing’s College LondonUK
- Asthma UK Centre in Allergic Mechanisms of AsthmaLondonUK
| | - Brian J. Sutton
- Randall Centre for Cell & Molecular BiophysicsKing’s College LondonUK
- Asthma UK Centre in Allergic Mechanisms of AsthmaLondonUK
| | - James M. McDonnell
- Randall Centre for Cell & Molecular BiophysicsKing’s College LondonUK
- Asthma UK Centre in Allergic Mechanisms of AsthmaLondonUK
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137
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Matsuda T, Oritani K. STAP-2 Adaptor Protein Regulates Multiple Steps of Immune and Inflammatory Responses. Biol Pharm Bull 2021; 44:895-901. [PMID: 34193686 DOI: 10.1248/bpb.b21-00224] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Signal-transducing adaptor protein (STAP)-2 is an adaptor molecule involved in regulation of several intracellular signaling events in immune cells. STAP-2 contains a pleckstrin homology domain at the N-terminus, an src homology domain in the central portion and a proline-rich region at the C-terminus. STAP-2 also has a YXXQ motif, which is a potential signal transducer and activator of transcription (STAT)3-binding site. STAP-2 influences the STAT3 and STAT5 activity, integrin-mediated T cell adhesion, chemokine-induced T cell migration, Fas-mediated T cell apoptosis, Toll-like receptor-mediated macrophage functions, macrophage colony-stimulating factor-induced macrophage activation, and the high-affinity immunoglobulin E receptor-mediated mast cell activation. This article reviews the current understanding of roles of the STAP-2 during immune and/or inflammatory responses, and discusses possible therapeutic applications of targeting STAP-2 proteins in immune-related disorders.
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Affiliation(s)
- Tadashi Matsuda
- Department of Immunology, Graduate School of Pharmaceutical Sciences, Hokkaido University
| | - Kenji Oritani
- Department of Hematology, International University of Health and Welfare
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138
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Engeroff P, Vogel M. The role of CD23 in the regulation of allergic responses. Allergy 2021; 76:1981-1989. [PMID: 33378583 PMCID: PMC8359454 DOI: 10.1111/all.14724] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 12/14/2020] [Accepted: 12/22/2020] [Indexed: 02/06/2023]
Abstract
IgE, the key molecule in atopy has been shown to bind two receptors, FcεRI, the high‐affinity receptor, and FcεRII (CD23), binding IgE with lower affinity. Whereas cross‐linking of IgE on FcεRI expressed by mast cells and basophils triggers the allergic reaction, binding of IgE to CD23 on B cells plays an important role in both IgE regulation and presentation. Furthermore, IgE‐immune complexes (IgE‐ICs) bound by B cells enhance antibody and T cell responses in mice and humans. However, the mechanisms that regulate the targeting of the two receptors and the respective function of the two pathways in inflammation or homeostasis are still a matter of debate. Here, we focus on CD23 and discuss several mechanisms related to IgE binding, as well as the impact of the IgE/antigen‐binding on different immune cells expressing CD23. One recent paper has shown that free IgE preferentially binds to FcεRI whereas IgE‐ICs are preferentially captured by CD23. Binding of IgE‐ICs to CD23 on B cells can, on one hand, regulate serum IgE and prevent effector cell activation and on the other hand facilitate antigen presentation by delivering the antigen to dendritic cells. These data argue for a multifunctional role of CD23 for modulating IgE serum levels and immune responses.
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Affiliation(s)
- Paul Engeroff
- INSERM UMR_S 959 Immunology‐Immunopathology‐Immunotherapy (i3) Sorbonne Université Paris France
| | - Monique Vogel
- Center for Clinical Research Region Västmanland/Uppsala University, Västmanland hospital Västerås Sweden
- Department of BioMedical Research University of Bern Bern Switzerland
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139
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Zhang J, Wu Z, Yu F, Ye L, Gu W, Tan Y, Wang L, Shi Y. Role of liver-X-receptors in airway remodeling in mice with chronic allergic asthma. Exp Ther Med 2021; 22:920. [PMID: 34335881 PMCID: PMC8290420 DOI: 10.3892/etm.2021.10352] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 05/05/2021] [Indexed: 12/13/2022] Open
Abstract
Liver X receptors (LXRs) exert anti-inflammatory effects in animal models of certain respiratory diseases. In the present study, a model of chronic airway remodeling was established in wild-type and LXR-deficient mice. Ovalbumin (OVA)-sensitized mice were chronically administered OVA via inhalation for 8 weeks. Prior to each stimulation, certain wild-type mice were treated with GW3965, which is a highly selective LXR agonist. The influence of LXRs on airway inflammation, airway hyperresponsiveness and airway remodeling was evaluated. LXRs were indicated to increase airway inflammation and airway hyperresponsiveness, as well as promote airway remodeling. These results suggest that inhibiting LXRs may be a potential method for the treatment of allergic asthma.
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Affiliation(s)
- Jinmei Zhang
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
| | - Zhengcan Wu
- Department of Radiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
| | - Fenfang Yu
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
| | - Liang Ye
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
| | - Wei Gu
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
| | - Yan Tan
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
| | - Li Wang
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
| | - Ying Shi
- Department of Respiratory Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu 210006, P.R. China
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140
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Illouz T, Biragyn A, Iulita MF, Flores-Aguilar L, Dierssen M, De Toma I, Antonarakis SE, Yu E, Herault Y, Potier MC, Botté A, Roper R, Sredni B, London J, Mobley W, Strydom A, Okun E. Immune Dysregulation and the Increased Risk of Complications and Mortality Following Respiratory Tract Infections in Adults With Down Syndrome. Front Immunol 2021; 12:621440. [PMID: 34248930 PMCID: PMC8267813 DOI: 10.3389/fimmu.2021.621440] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Accepted: 06/02/2021] [Indexed: 12/12/2022] Open
Abstract
The risk of severe outcomes following respiratory tract infections is significantly increased in individuals over 60 years, especially in those with chronic medical conditions, i.e., hypertension, diabetes, cardiovascular disease, dementia, chronic respiratory disease, and cancer. Down Syndrome (DS), the most prevalent intellectual disability, is caused by trisomy-21 in ~1:750 live births worldwide. Over the past few decades, a substantial body of evidence has accumulated, pointing at the occurrence of alterations, impairments, and subsequently dysfunction of the various components of the immune system in individuals with DS. This associates with increased vulnerability to respiratory tract infections in this population, such as the influenza virus, respiratory syncytial virus, SARS-CoV-2 (COVID-19), and bacterial pneumonias. To emphasize this link, here we comprehensively review the immunobiology of DS and its contribution to higher susceptibility to severe illness and mortality from respiratory tract infections.
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Affiliation(s)
- Tomer Illouz
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel
- The Paul Feder Laboratory on Alzheimer’s Disease Research, Bar-Ilan University, Ramat Gan, Israel
| | - Arya Biragyn
- Laboratory of Molecular Biology and Immunology, National Institute on Aging, National Institute of Health, Baltimore, MD, United States
| | - Maria Florencia Iulita
- Sant Pau Memory Unit, Department of Neurology, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
- Biomedical Research Institute Sant Pau, Universitat Autònoma de Barcelona, Barcelona, Spain
- Center of Biomedical Investigation Network for Neurodegenerative Diseases (CIBERNED), Madrid, Spain
| | - Lisi Flores-Aguilar
- Department of Anatomy and Cell Biology, McGill University, Montreal, QC, Canada
| | - Mara Dierssen
- Center for Genomic Regulation, The Barcelona Institute for Science and Technology, Barcelona, Spain
- University Pompeu Fabra, Barcelona, Spain
- Biomedical Research Networking Center for Rare Diseases (CIBERER), Barcelona, Spain
| | - Ilario De Toma
- Center for Genomic Regulation, The Barcelona Institute for Science and Technology, Barcelona, Spain
- University Pompeu Fabra, Barcelona, Spain
- Biomedical Research Networking Center for Rare Diseases (CIBERER), Barcelona, Spain
| | - Stylianos E. Antonarakis
- Department of Genetic Medicine and Development, University of Geneva, Geneva, Switzerland
- Medigenome, Swiss Institute of Genomic Medicine, Geneva, Switzerland
- iGE3 Institute of Genetics and Genomics of Geneva, Geneva, Switzerland
| | - Eugene Yu
- The Children’s Guild Foundation Down Syndrome Research Program, Genetics and Genomics Program and Department of Cancer Genetics and Genomics, Roswell Park Comprehensive Cancer Center, Buffalo, NY, United States
- Genetics, Genomics and Bioinformatics Program, State University of New York at Buffalo, Buffalo, NY, United States
| | - Yann Herault
- Université de Strasbourg, CNRS, INSERM, Institut de Génétique Biologie Moléculaire et Cellulaire, IGBMC - UMR 7104 - Inserm U1258, Illkirch, France
| | - Marie-Claude Potier
- Paris Brain Institute (ICM), CNRS UMR7225, INSERM U1127, Sorbonne Université, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Alexandra Botté
- Paris Brain Institute (ICM), CNRS UMR7225, INSERM U1127, Sorbonne Université, Hôpital de la Pitié-Salpêtrière, Paris, France
| | - Randall Roper
- Department of Biology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, United States
| | - Benjamin Sredni
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
| | | | - William Mobley
- Department of Neurosciences, University of California, San Diego, San Diego, CA, United States
| | - Andre Strydom
- Department of Forensic and Neurodevelopmental Sciences, Institute of Psychiatry Psychology and Neuroscience, King’s College London, London, United Kingdom
- South London and Maudsley NHS Foundation Trust, London, United Kingdom
| | - Eitan Okun
- The Leslie and Susan Gonda Multidisciplinary Brain Research Center, Bar-Ilan University, Ramat Gan, Israel
- The Paul Feder Laboratory on Alzheimer’s Disease Research, Bar-Ilan University, Ramat Gan, Israel
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan, Israel
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141
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Belaid B, Lamara Mahammed L, Mohand Oussaid A, Migaud M, Khadri Y, Casanova JL, Puel A, Ben Halla N, Djidjik R. Case Report: Interleukin-2 Receptor Common Gamma Chain Defect Presented as a Hyper-IgE Syndrome. Front Immunol 2021; 12:696350. [PMID: 34248995 PMCID: PMC8264782 DOI: 10.3389/fimmu.2021.696350] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 06/07/2021] [Indexed: 11/16/2022] Open
Abstract
X-linked severe combined immunodeficiency (X-SCID) is caused by mutations of IL2RG, the gene encoding the interleukin common gamma chain (IL-2Rγ or γc) of cytokine receptors for interleukin (IL)-2, IL-4, IL-7, IL-9, IL-15, and IL-21. Hypomorphic mutations of IL2RG may cause combined immunodeficiencies with atypical clinical and immunological presentations. Here, we report a clinical, immunological, and functional characterization of a missense mutation in exon 1 (c.115G>A; p. Asp39Asn) of IL2RG in a 7-year-old boy. The patient suffered from recurrent sinopulmonary infections and refractory eczema. His total lymphocyte counts have remained normal despite skewed T cell subsets, with a pronounced serum IgE elevation. Surface expression of IL-2Rγ was reduced on his lymphocytes. Signal transducer and activator of transcription (STAT) phosphorylation in response to IL-2, IL-4, and IL-7 showed a partially preserved receptor function. T-cell proliferation in response to mitogens and anti-CD3/anti-CD28 monoclonal antibodies was significantly reduced. Further analysis revealed a decreased percentage of CD4+ T cells capable of secreting IFN-γ, but not IL-4 or IL-17. Studies on the functional consequences of IL-2Rγ variants are important to get more insight into the pathogenesis of atypical phenotypes which may lay the ground for novel therapeutic strategies.
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Affiliation(s)
- Brahim Belaid
- Department of Medical Immunology, Beni-Messous University Hospital Center, Algiers, Algeria.,Faculty of Medicine, Benyoucef Benkhedda University of Algiers 1, Algiers, Algeria
| | - Lydia Lamara Mahammed
- Department of Medical Immunology, Beni-Messous University Hospital Center, Algiers, Algeria.,Faculty of Medicine, Benyoucef Benkhedda University of Algiers 1, Algiers, Algeria
| | - Aida Mohand Oussaid
- Faculty of Medicine, Benyoucef Benkhedda University of Algiers 1, Algiers, Algeria.,Department of Pediatrics A, Beni-Messous University Hospital Center, Algiers, Algeria
| | - Melanie Migaud
- Laboratory of Human Genetics of Infectious Diseases, Necker Hospital for Sick Children, INSERM UMR 1163, Paris, France.,Imagine Institute, University of Paris, Paris, France
| | - Yasmine Khadri
- Department of Pediatrics A, Beni-Messous University Hospital Center, Algiers, Algeria
| | - Jean Laurent Casanova
- Laboratory of Human Genetics of Infectious Diseases, Necker Hospital for Sick Children, INSERM UMR 1163, Paris, France.,Imagine Institute, University of Paris, Paris, France.,St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, NY, United States.,Howard Hughes Medical Institute, New York, NY, United States
| | - Anne Puel
- Laboratory of Human Genetics of Infectious Diseases, Necker Hospital for Sick Children, INSERM UMR 1163, Paris, France.,Imagine Institute, University of Paris, Paris, France.,St Giles Laboratory of Human Genetics of Infectious Diseases, Rockefeller University, New York, NY, United States
| | - Nafissa Ben Halla
- Faculty of Medicine, Benyoucef Benkhedda University of Algiers 1, Algiers, Algeria.,Department of Pediatrics A, Beni-Messous University Hospital Center, Algiers, Algeria
| | - Reda Djidjik
- Department of Medical Immunology, Beni-Messous University Hospital Center, Algiers, Algeria.,Faculty of Medicine, Benyoucef Benkhedda University of Algiers 1, Algiers, Algeria
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142
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Zheng Z, Zhao C, Xiong H, Zhang L, Wang Q, Li Y, Li J. Significance of detecting postmortem serum IgE in frozen corpses for the diagnosis of anaphylaxis in forensic. Leg Med (Tokyo) 2021; 53:101930. [PMID: 34130173 DOI: 10.1016/j.legalmed.2021.101930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2021] [Revised: 05/30/2021] [Accepted: 06/06/2021] [Indexed: 11/29/2022]
Abstract
The aim of this study was to detect the postmortem serum total IgE levels in frozen corpses and identify whether the death incident caused by an anaphylaxis in forensic medicine. Autopsy cases with pathological death (total, n = 106; 4-214 h postmortem) include cardiac disease (n = 15), pulmonary infection (n = 12), central nervous system disorder (n = 6), pulmonary emboliszn (n = 7), hapetic disease (n = 5), kidney disease (n = 6), enteric disease (n = 10), necrotizing pancreatitis (n = 7), diffuse peritonitis (n = 6), MODS (n = 6), toxicosis (n = 5:), anaphylactic shock (n = 7), bronchial asthma (n = 8) and other disease (n = 6) were examined. Results showed that there was no significant difference between serum IgE levels and ages, postmortem intervals (PMIs), gender as well as survival time. Serum IgE levels of deaths due to anaphylactic shock and bronchial asthma were higher than that of other groups. Forensic pathology examination results showed the main pathology changes of bronchial asthma were mucous congestion in bronchial lumen and eosinophils infiltration in bronchial mucosa. The main pathological features of anaphylactic shock were laryngeal edema and eosinophils infiltration in multiple organs (lung and spleen). This research proved that there was a great significance for IgE to infer whether the individual died due to an anaphylaxis even for a long PMI in frozen corpses. Furthermore, we can also preliminarily determine the type of allergic death combined with the examination of forensic pathology. These findings further verify the feasibility of postmortem serum IgE in the diagnosis of forensic causes of death and broaden the application scope of this marker.
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Affiliation(s)
- Zhe Zheng
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Congcong Zhao
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Hongli Xiong
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Li Zhang
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Qi Wang
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Yongguo Li
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China
| | - Jianbo Li
- Department of Forensic Medicine, Faculty of Basic Medical Sciences, Chongqing Medical University, Chongqing 400016, China.
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143
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Novosad J, Krčmová I. Evolution of our view on the IgE molecule role in bronchial asthma and the clinical effect of its modulation by omalizumab: Where do we stand today? Int J Immunopathol Pharmacol 2021; 34:2058738420942386. [PMID: 32689848 PMCID: PMC7375718 DOI: 10.1177/2058738420942386] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Bronchial asthma is a heterogeneous disease whose definition and treatment are based on evidence of variable airway obstruction and airway inflammation. Despite the enormous increase in the amount of information on the pathogenesis of this disease, diagnosis is still an unresolved problem, as we still lack sensitive and specific biomarkers. On the other hand, at the turn of the 20th and 21st century, there was a rapid development of therapeutic modalities based on the principle of biological therapy. The first authorized drug matching these characteristics was omalizumab – a monoclonal antibody directed against immunoglobulin E (IgE). It has been used for the treatment of severe forms of bronchial asthma for more than 15 years, which is a sufficient time to acquire ways of its effective use and to assess whether the treatment with omalizumab has met our expectations. However, we continue to discover new and surprising facts about the effects of omalizumab treatment which leads to widening of therapeutic indications. In this work, a basic overview of the very complex role of the IgE molecule in the organism (with a special emphasis on allergic asthma) is discussed, and the most important practical and clinical consequences resulting from its modulation by targeted therapy with omalizumab are summarized.
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Affiliation(s)
- Jakub Novosad
- Institute of Clinical Immunology and Allergology, University Hospital Hradec Králové, Hradec Králové, Czech Republic.,Faculty of Medicine in Hradec Králové, Charles University in Prague, Prague, Czech Republic
| | - Irena Krčmová
- Institute of Clinical Immunology and Allergology, University Hospital Hradec Králové, Hradec Králové, Czech Republic.,Faculty of Medicine in Hradec Králové, Charles University in Prague, Prague, Czech Republic
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144
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Kang SA, Yu HS. Acceleration of Trichinella spiralis worm expulsion by leukotriene B4 receptor binding inhibition. Parasite Immunol 2021; 43:e12843. [PMID: 33977540 DOI: 10.1111/pim.12843] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 01/08/2023]
Abstract
AIMS Helminth infection typically induces a Th2 inflammatory response that is characterized by eosinophilia, high levels of IgE and mast cells. LTB4 is generated from innate immune cells, such as neutrophils, macrophages and mast cells, in response to a range of stimuli. It mainly acts on myeloid leukocytes, inducing the activation of integrins, adhesion to endothelium walls, and chemotaxis. METHODS AND RESULTS The objective of the present study was to determine the role of the LTB4 receptor in Trichinella spiralis expulsion. We treated mice with the LTB4 receptor antagonist before infection with T. spiralis. We observed that the number of mast cells and worm infection decreased following treatment with the BLT antagonist during the intestinal phase. We also demonstrated that blocking the LTB4 receptor inhibited neutrophil and eosinophil infiltration. CONCLUSIONS Further studies are required to investigate the specific mechanism of mast cell number decrease and worm infection and the in vitro interactions between LTB4 and worm expulsion.
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Affiliation(s)
- Shin Ae Kang
- Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University, Yangsan-si, Rep. of Korea
| | - Hak Sun Yu
- Department of Parasitology and Tropical Medicine, School of Medicine, Pusan National University, Yangsan-si, Rep. of Korea.,Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan-si, Rep. of Korea
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145
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Larson EM, Babasyan S, Wagner B. IgE-Binding Monocytes Have an Enhanced Ability to Produce IL-8 (CXCL8) in Animals with Naturally Occurring Allergy. THE JOURNAL OF IMMUNOLOGY 2021; 206:2312-2321. [PMID: 33952617 DOI: 10.4049/jimmunol.2001354] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Accepted: 03/01/2021] [Indexed: 12/29/2022]
Abstract
IL-8 is a potent chemokine that recruits neutrophils and basophils to promote inflammation in many species. IL-8 is produced by many cell types, including monocytes. In this study, we report a novel role for IgE-binding monocytes, a rare peripheral immune cell type, to promote allergic inflammation through IL-8 production in a horse model of natural IgE-mediated allergy. We developed a mAb with confirmed specificity for both recombinant and native equine IL-8 for flow cytometric analysis. Equine IL-8 was produced by CD14+/MHC class II+/CD16- monocytes, including a subpopulation of IgE-binding monocytes, following stimulation with LPS. In addition, IgE cross-linking induced IL-8 production by both peripheral blood basophils and IgE-binding monocytes. IL-8 production was compared between healthy horses and those with a naturally occurring IgE-mediated skin allergy, Culicoides hypersensitivity. Allergic horses had significantly higher percentages of IL-8+ IgE-binding monocytes after IgE cross-linking. In contrast, frequencies of IL-8+ basophils after IgE cross-linking were similar in all horses, regardless of allergic disease, highlighting IgE-binding monocytes as a novel source of IL-8 during allergy. We concluded that IgE-binding monocytes from allergic individuals have an increased capacity for IL-8 production and likely contribute to the recruitment of innate immune cells during IgE-mediated allergy and promotion of inflammation during repeated allergen contact.
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Affiliation(s)
- Elisabeth M Larson
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY
| | - Susanna Babasyan
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY
| | - Bettina Wagner
- Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY
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146
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Moya B, Tontini C, Santos A. IgE sialylation: Unravelling a key anaphylactic mediator. Allergy 2021; 76:1598-1600. [PMID: 33147354 DOI: 10.1111/all.14649] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Revised: 10/28/2020] [Accepted: 10/30/2020] [Indexed: 11/28/2022]
Affiliation(s)
- Beatriz Moya
- Allergy Service Hospital Universitario 12 de Octubre Madrid Spain
| | - Chiara Tontini
- Faculty of Biology, Medicine and Health Lydia Becker Institute for Immunology and Inflammation University of Manchester Manchester UK
| | - Alexandra Santos
- Department of Women and Children's Health (Paediatric Allergy) Faculty of Life Sciences and Medicine School of Life Course Sciences King's College London London UK
- Peter Gorer Department of Immunobiology School of Immunology and Microbial Sciences King's College London London UK
- Children's Allergy ServiceGuy's and St Thomas' Hospital London UK
- Asthma UK Centre of Allergic Mechanisms of Asthma London UK
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147
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Gomez-Casado C, Sanchez-Solares J, Izquierdo E, Díaz-Perales A, Barber D, Escribese MM. Oral Mucosa as a Potential Site for Diagnosis and Treatment of Allergic and Autoimmune Diseases. Foods 2021; 10:970. [PMID: 33925074 PMCID: PMC8146604 DOI: 10.3390/foods10050970] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 04/23/2021] [Accepted: 04/26/2021] [Indexed: 12/15/2022] Open
Abstract
Most prevalent food allergies during early childhood are caused by foods with a high allergenic protein content, such as milk, egg, nuts, or fish. In older subjects, some respiratory allergies progressively lead to food-induced allergic reactions, which can be severe, such as urticaria or asthma. Oral mucosa remodeling has been recently proven to be a feature of severe allergic phenotypes and autoimmune diseases. This remodeling process includes epithelial barrier disruption and the release of inflammatory signals. Although little is known about the immune processes taking place in the oral mucosa, there are a few reports describing the oral mucosa-associated immune system. In this review, we will provide an overview of the recent knowledge about the role of the oral mucosa in food-induced allergic reactions, as well as in severe respiratory allergies or food-induced autoimmune diseases, such as celiac disease.
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Affiliation(s)
- Cristina Gomez-Casado
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
| | - Javier Sanchez-Solares
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
| | - Elena Izquierdo
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
| | - Araceli Díaz-Perales
- Center of Plant Biotechnology and Genomics, Technical University of Madrid, 28040 Madrid, Spain;
| | - Domingo Barber
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
| | - María M. Escribese
- Institute of Applied Molecular Medicine, Department of Basic Medical Sciences, Faculty of Medicine, San Pablo CEU University, 28003 Madrid, Spain; (J.S.-S.); (E.I.); (D.B.); (M.M.E.)
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148
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The Predictive Role of Biomarkers and Genetics in Childhood Asthma Exacerbations. Int J Mol Sci 2021; 22:ijms22094651. [PMID: 33925009 PMCID: PMC8124320 DOI: 10.3390/ijms22094651] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2021] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 12/24/2022] Open
Abstract
Asthma exacerbations are associated with significant childhood morbidity and mortality. Recurrent asthma attacks contribute to progressive loss of lung function and can sometimes be fatal or near-fatal, even in mild asthma. Exacerbation prevention becomes a primary target in the management of all asthmatic patients. Our work reviews current advances on exacerbation predictive factors, focusing on the role of non-invasive biomarkers and genetics in order to identify subjects at higher risk of asthma attacks. Easy-to-perform tests are necessary in children; therefore, interest has increased on samples like exhaled breath condensate, urine and saliva. The variability of biomarker levels suggests the use of seriate measurements and composite markers. Genetic predisposition to childhood asthma onset has been largely investigated. Recent studies highlighted the influence of single nucleotide polymorphisms even on exacerbation susceptibility, through involvement of both intrinsic mechanisms and gene-environment interaction. The role of molecular and genetic aspects in exacerbation prediction supports an individual-shaped approach, in which follow-up planning and therapy optimization take into account not only the severity degree, but also the risk of recurrent exacerbations. Further efforts should be made to improve and validate the application of biomarkers and genomics in clinical settings.
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149
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Chao CL, Wang CJ, Huang HW, Kuo HP, Su MH, Lin HC, Teng CW, Sy LB, Wu WM. Poria cocos Modulates Th1/Th2 Response and Attenuates Airway Inflammation in an Ovalbumin-Sensitized Mouse Allergic Asthma Model. Life (Basel) 2021; 11:life11050372. [PMID: 33919400 PMCID: PMC8143325 DOI: 10.3390/life11050372] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2021] [Revised: 04/09/2021] [Accepted: 04/20/2021] [Indexed: 11/24/2022] Open
Abstract
Poria cocos, called fuling, is a famous tonic in traditional Chinese medicine that reportedly possesses various pharmacological properties, including anti-inflammation and immunomodulation. However, few studies have investigated the effects of P. cocos on allergic diseases, such as allergic asthma. Allergic asthma is caused primarily by Th2 immune response and characterized by airway inflammation. This study first demonstrated the anti-allergic and anti-asthmatic effects of P. cocos extract (Lipucan®). P. cocos extract distinctly exhibited reduced inflammatory cell infiltration in the peribronchial and peribronchiolar regions compared to the asthma group in the histological analysis of pulmonary tissue sections. Prolonged P. cocos extract administration significantly reduced eosinophil infiltration, PGE2 levels, total IgE, and OVA-specific IgE. Moreover, P. cocos extract markedly suppressed Th2 cytokines, IL-4, IL-5, and IL-10. On the other hand, P. cocos extract significantly elevated IL-2 secretion by Th1 immune response. In addition, P. cocos extract elevated the IFN-γ level at a lower dose. We also observed that P. cocos extract increased the activity of NK cells. Our results suggest that P. cocos extract remodels the intrinsic Th1/Th2 response to prevent or alleviate allergy-induced asthma or symptoms.
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Affiliation(s)
- Chien-Liang Chao
- Sinphar Pharmaceutical Co., Ltd., Sinphar Group, Yilan 269, Taiwan; (C.-L.C.); (C.-J.W.); (H.-W.H.); (H.-P.K.); (M.-H.S.); (H.-C.L.)
| | - Chao-Jih Wang
- Sinphar Pharmaceutical Co., Ltd., Sinphar Group, Yilan 269, Taiwan; (C.-L.C.); (C.-J.W.); (H.-W.H.); (H.-P.K.); (M.-H.S.); (H.-C.L.)
- Sinphar Tian-Li Pharmaceutical Co., Ltd., Sinphar Group, Hangzhou 311100, China
| | - Hsin-Wen Huang
- Sinphar Pharmaceutical Co., Ltd., Sinphar Group, Yilan 269, Taiwan; (C.-L.C.); (C.-J.W.); (H.-W.H.); (H.-P.K.); (M.-H.S.); (H.-C.L.)
| | - Han-Peng Kuo
- Sinphar Pharmaceutical Co., Ltd., Sinphar Group, Yilan 269, Taiwan; (C.-L.C.); (C.-J.W.); (H.-W.H.); (H.-P.K.); (M.-H.S.); (H.-C.L.)
- SynCore Biotechnology Co., Ltd., Sinphar Group, Yilan 269, Taiwan
| | - Muh-Hwan Su
- Sinphar Pharmaceutical Co., Ltd., Sinphar Group, Yilan 269, Taiwan; (C.-L.C.); (C.-J.W.); (H.-W.H.); (H.-P.K.); (M.-H.S.); (H.-C.L.)
- SynCore Biotechnology Co., Ltd., Sinphar Group, Yilan 269, Taiwan
- School of Pharmacy, National Defense Medical Center, Taipei 114, Taiwan
| | - Hang-Ching Lin
- Sinphar Pharmaceutical Co., Ltd., Sinphar Group, Yilan 269, Taiwan; (C.-L.C.); (C.-J.W.); (H.-W.H.); (H.-P.K.); (M.-H.S.); (H.-C.L.)
- School of Pharmacy, National Defense Medical Center, Taipei 114, Taiwan
| | - Chia-Wen Teng
- Department of Nutritional Science, Fu-Jen Catholic University, Hsinchuang 24205, Taiwan;
| | | | - Wen-Mein Wu
- Department of Nutritional Science, Fu-Jen Catholic University, Hsinchuang 24205, Taiwan;
- Correspondence: ; Tel.: +886-2-2905-3633
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150
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Yang M, Li LY, Qin XD, Ye XY, Yu S, Bao Q, Sun L, Wang ZB, Bloom MS, Jalava P, Hu LW, Yu HY, Zeng XW, Yang BY, Dong GH, Li CW. Perfluorooctanesulfonate and perfluorooctanoate exacerbate airway inflammation in asthmatic mice and in vitro. THE SCIENCE OF THE TOTAL ENVIRONMENT 2021; 766:142365. [PMID: 33601665 DOI: 10.1016/j.scitotenv.2020.142365] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/18/2020] [Accepted: 09/09/2020] [Indexed: 05/14/2023]
Abstract
Emerging evidence suggests associations between Perfluoroalkyl substances (PFASs) exposure and asthma, but the findings are inconsistent. The current study sought to investigate whether perfluorooctanesulfonate (PFOS) and perfluorooctanoate (PFOA) could contribute to asthma exacerbation and to clarify the underlying biological mechanisms. The objectives are a) to determine whether PFOS or PFOA could aggravate the mouse asthma and pulmonary inflammation b) to investigate whether PFOS and PFOA regulate the balance of Th1/Th2 through the JAK-STAT signaling pathway and aggravated asthma. Ovalbumin (OVA) induced asthmatic mice were exposed to PFOS or PFOA by gavage. PFOS and PFOA serum level and toxicity in organs were assessed; and the impacts on respiratory symptoms, lung tissue pathology, T helper cell (Th2) response, and STAT6 pathway activity were also evaluated. In vitro Jurkat cells were used to study the mechanisms of PFOS and PFOA mediated Th1 and Th2 responses. Both PFOS and PFOA exacerbated lung tissue inflammation (greater number of eosinophils and mucus hyperproduction), upregulated Th2 cytokine production (IL-4 and IL-13), and promoted Th2 cells and STAT6 activation. Furthermore, PFOS and PFOA enhanced the Th2 response in Jurkat cells via STAT6 activation; and the effect of PFOS exposure on GATA-3, IL-4 and IFN-γ was blocked after the expression of STAT6 was suppressed in Jurkat cells, however, the effects of PFOA exposure were only partially blocked. PFOS and PFOA aggravated inflammation among OVA-induced asthmatic mice, by promoting the Th2 response in lymphocytes and disturbing the balance of Th1/Th2 through the JAK-STAT signaling pathway.
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Affiliation(s)
- Mo Yang
- Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Li-Yue Li
- Guangzhou Key Laboratory of Otorhinolaryngology, Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Di Qin
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Yan Ye
- Guangzhou Key Laboratory of Otorhinolaryngology, Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shu Yu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Qing Bao
- Guangzhou Key Laboratory of Otorhinolaryngology, Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Lin Sun
- Guangzhou Key Laboratory of Otorhinolaryngology, Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhi-Bin Wang
- Department of Environmental Health Sciences, Laboratory of Human Environmental Epigenomes, Bloomberg School of Public Health, Johns Hopkins University, Baltimore, USA
| | - Michael S Bloom
- Departments of Environmental Health Sciences and Epidemiology & Biostatistics, University at Albany School of Public Health, Albany, USA
| | - Pasi Jalava
- Department of Environmental and Biological Science, University of Eastern Finland, Kuopio, Finland
| | - Li-Wen Hu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Hong-Yao Yu
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Xiao-Wen Zeng
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Bo-Yi Yang
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Guang-Hui Dong
- Guangdong Provincial Engineering Technology Research Center of Environmental Pollution and Health Risk Assessment, Department of Occupational and Environmental Health, School of Public Health, Sun Yat-sen University, Guangzhou, China.
| | - Chun-Wei Li
- Guangzhou Key Laboratory of Otorhinolaryngology, Department of Otolaryngology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China.
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