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Fröhlich-Nowoisky J, Bothen N, Backes AT, Weller MG, Pöschl U. Oligomerization and tyrosine nitration enhance the allergenic potential of the birch and grass pollen allergens Bet v 1 and Phl p 5. FRONTIERS IN ALLERGY 2023; 4:1303943. [PMID: 38125293 PMCID: PMC10732249 DOI: 10.3389/falgy.2023.1303943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/20/2023] [Indexed: 12/23/2023] Open
Abstract
Protein modifications such as oligomerization and tyrosine nitration alter the immune response to allergens and may contribute to the increasing prevalence of allergic diseases. In this mini-review, we summarize and discuss relevant findings for the major birch and grass pollen allergens Bet v 1 and Phl p 5 modified with tetranitromethane (laboratory studies), peroxynitrite (physiological processes), and ozone and nitrogen dioxide (environmental conditions). We focus on tyrosine nitration and the formation of protein dimers and higher oligomers via dityrosine cross-linking and the immunological effects studied.
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Affiliation(s)
| | - Nadine Bothen
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Anna T. Backes
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Michael G. Weller
- Division 1.5 - Protein Analysis, Federal Institute for Materials Research and Testing (BAM), Berlin, Germany
| | - Ulrich Pöschl
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
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2
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Tian J, Yang F. Site-specific tyrosine nitration of group 1 allergens of house dust mite Dermatophagoides farinae (der f 1) and Dermatophagoides pteronyssinus (der p 1) in indoor dusts. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 330:121716. [PMID: 37142204 DOI: 10.1016/j.envpol.2023.121716] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 04/04/2023] [Accepted: 04/24/2023] [Indexed: 05/06/2023]
Abstract
Nitration can enhance the allergenicity of proteins. The nitration status of house dust mite (HDM) allergens in indoor dusts, however, remains to be elucidated. In the study, site-specific tyrosine nitration degrees of the two important HDM allergens Der f 1 and Der p 1 in indoor dust samples were investigated by liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). The measured concentrations of native and nitrated allergens in the dusts were in the range of 0.86-29 μg g-1 for Der f 1 and from below the detection limit to 29 μg g-1 for Der p 1. Site-specific analysis revealed that all ten tyrosine residues in Der f 1 and Der p 1 were nitrated to different degrees in the investigated samples. The preferred nitration sites were Y56 in Der f 1 and Y37 in Der p 1 with the nitration degrees of 7.6-84% and 17-96% among the detected tyrosine residues, respectively. The measurements reveal high site-specific nitration degrees for tyrosine in Der f 1 and Der p 1 detected in the indoor dust samples. Further investigations are required to find out if the nitration really aggravates the health effects of HDM allergens and if the effects are tyrosine site-dependent.
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Affiliation(s)
- Jingyi Tian
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, 310058, Hangzhou, China
| | - Fangxing Yang
- Key Laboratory of Environment Remediation and Ecological Health, Ministry of Education, College of Environmental and Resource Sciences, Zhejiang University, 310058, Hangzhou, China.
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Ogino N, Ogino K, Eitoku M, Suganuma N, Nagaoka K. Filter blot method: A simple method for measuring 3-nitrotyrosine in proteins of atmospheric particulate matter. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2023; 329:121677. [PMID: 37085106 DOI: 10.1016/j.envpol.2023.121677] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Revised: 04/02/2023] [Accepted: 04/18/2023] [Indexed: 05/03/2023]
Abstract
Air pollutants, such as nitrogen dioxide (NO2), ozone (O3), and particulate matter (PM), have been epidemiologically reported to contribute to the onset and exacerbation of asthma. We have previously shown that several proteins in atmospheric PM are allergenic in mouse asthma models and that these proteins are nitrated by atmospheric NO2 and O3 in chemical reactions. Based on these results, the amount of 3-nitrotyrosine (3-NT) in atmospheric PM could be an air pollution marker integrating NO2, O3, and PM. We established a method to measure 3-NT by high-performance liquid chromatography electrochemical detection (HPLC-ECD). Although this method is accurate, it requires a filter treatment process, which is time-consuming and costly for an environmental monitoring tool, in which many samples are measured simultaneously. Therefore, in this study, we investigated a simple immunoblotting method in which atmospheric PM proteins were directly transferred to a polyvinylidene fluoride (PVDF) membrane and measured using an anti-3-NT antibody (the filter blot method). The 3-NT value obtained from this method was significantly correlated (r = 0.809, p < 0.001) with that of the HPLC-ECD method, with a detection power of 0.1 μg/mL for tyrosine nitrated bovine serum albumin equivalents. Multiple regression analysis using the filter blot method showed that the amount of 3-NT in atmospheric PM was significantly associated with the published environmental measurements of O3 and PM in the region. Therefore, the filter blot method may be useful for the environmental monitoring of 3-NT in atmospheric PM.
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Affiliation(s)
- Noriyoshi Ogino
- Department of Environmental Medicine, Faculty of Medicine, Kochi University, Kohasu, Oko-cho, Nangoku, Japan
| | - Keiki Ogino
- Department of Environmental Medicine, Faculty of Medicine, Kochi University, Kohasu, Oko-cho, Nangoku, Japan
| | - Masamitsu Eitoku
- Department of Environmental Medicine, Faculty of Medicine, Kochi University, Kohasu, Oko-cho, Nangoku, Japan
| | - Narufumi Suganuma
- Department of Environmental Medicine, Faculty of Medicine, Kochi University, Kohasu, Oko-cho, Nangoku, Japan
| | - Kenjiro Nagaoka
- Laboratory of Hygienic Chemistry, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, 790-8578, Ehime, Japan.
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Reinmuth-Selzle K, Bellinghausen I, Leifke AL, Backes AT, Bothen N, Ziegler K, Weller MG, Saloga J, Schuppan D, Lucas K, Pöschl U, Fröhlich-Nowoisky J. Chemical modification by peroxynitrite enhances TLR4 activation of the grass pollen allergen Phl p 5. FRONTIERS IN ALLERGY 2023; 4:1066392. [PMID: 36873048 PMCID: PMC9975604 DOI: 10.3389/falgy.2023.1066392] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/12/2023] [Indexed: 02/17/2023] Open
Abstract
The chemical modification of aeroallergens by reactive oxygen and nitrogen species (ROS/RNS) may contribute to the growing prevalence of respiratory allergies in industrialized countries. Post-translational modifications can alter the immunological properties of proteins, but the underlying mechanisms and effects are not well understood. In this study, we investigate the Toll-like receptor 4 (TLR4) activation of the major birch and grass pollen allergens Bet v 1 and Phl p 5, and how the physiological oxidant peroxynitrite (ONOO-) changes the TLR4 activation through protein nitration and the formation of protein dimers and higher oligomers. Of the two allergens, Bet v 1 exhibited no TLR4 activation, but we found TLR4 activation of Phl p 5, which increased after modification with ONOO- and may play a role in the sensitization against this grass pollen allergen. We attribute the TLR4 activation mainly to the two-domain structure of Phl p 5 which may promote TLR4 dimerization and activation. The enhanced TLR4 signaling of the modified allergen indicates that the ONOO--induced modifications affect relevant protein-receptor interactions. This may lead to increased sensitization to the grass pollen allergen and thus contribute to the increasing prevalence of allergies in the Anthropocene, the present era of globally pervasive anthropogenic influence on the environment.
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Affiliation(s)
| | - Iris Bellinghausen
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Anna Lena Leifke
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Anna T. Backes
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Nadine Bothen
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Kira Ziegler
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Michael G. Weller
- Federal Institute for Materials Research and Testing (BAM), Berlin, Germany
| | - Joachim Saloga
- Department of Dermatology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
| | - Detlef Schuppan
- Institute of Translational Immunology, University Medical Center of the Johannes Gutenberg University, Mainz, Germany
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, MA, USA
| | - Kurt Lucas
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
| | - Ulrich Pöschl
- Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz, Germany
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5
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Samadi N, Koidl L, Salzmann M, Klems M, Komatitsch N, Schaffer D, Weidmann E, Duschl A, Horejs-Hoeck J, Untersmayr E. Food Allergen Nitration Enhances Safety and Efficacy of Oral Immunotherapy in Food Allergy. Nutrients 2022; 14:nu14071373. [PMID: 35405985 PMCID: PMC9003069 DOI: 10.3390/nu14071373] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 03/17/2022] [Accepted: 03/21/2022] [Indexed: 12/20/2022] Open
Abstract
(1) Background: Posttranslational protein modifications have been demonstrated to change protein allergenicity. Previously, it was reported that pretreatment with highly nitrated food proteins induced a tolerogenic immune response in an experimental mouse model and in human immune cells. Here, we investigated a possible therapeutic effect of modified proteins and evaluated the safety of oral exposure to highly nitrated proteins in an experimental food allergy model. (2) Methods: BALB/c mice were orally sensitized towards ovalbumin (OVA) under gastric acid suppression. Thereafter, treatment via intragastric gavage with maximally nitrated OVA (nOVAmax) and OVA as a control was performed six times every 2 weeks. On the last day of experiments, all the treated mice were orally challenged with OVA. Systemic anaphylactic reaction was determined by measuring the core body temperature. Moreover, antibody levels, regulatory T cell numbers, cytokine levels and histology of antrum tissues were analyzed. (3) Results: After oral immunotherapy, OVA-specific IgE titers were decreased while IgG1 titers were significantly elevated in the mice receiving OVA. After oral challenge with OVA, nOVAmax-treated allergic animals showed no drop of the core body temperature, which was observed for OVA-allergic and OVA-treated allergic animals. Significantly fewer eosinophils and mast cells were found in the gastric mucosa of the allergic mice after nOVAmax treatment. (4) Conclusions: Oral immunotherapy with nOVAmax reduced allergic reactions upon allergen exposure and the number of allergen effector cells in the gastric mucosa. Thus, maximally nitrated allergens enabled an efficient and safe treatment for food allergy in our experimental model.
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Affiliation(s)
- Nazanin Samadi
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; (N.S.); (L.K.); (M.S.); (M.K.); (N.K.); (D.S.); (E.W.)
| | - Larissa Koidl
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; (N.S.); (L.K.); (M.S.); (M.K.); (N.K.); (D.S.); (E.W.)
| | - Martina Salzmann
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; (N.S.); (L.K.); (M.S.); (M.K.); (N.K.); (D.S.); (E.W.)
| | - Martina Klems
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; (N.S.); (L.K.); (M.S.); (M.K.); (N.K.); (D.S.); (E.W.)
| | - Natalie Komatitsch
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; (N.S.); (L.K.); (M.S.); (M.K.); (N.K.); (D.S.); (E.W.)
| | - Denise Schaffer
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; (N.S.); (L.K.); (M.S.); (M.K.); (N.K.); (D.S.); (E.W.)
| | - Eleonore Weidmann
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; (N.S.); (L.K.); (M.S.); (M.K.); (N.K.); (D.S.); (E.W.)
| | - Albert Duschl
- Department of Biosciences, University of Salzburg, 5020 Salzburg, Austria; (A.D.); (J.H.-H.)
| | - Jutta Horejs-Hoeck
- Department of Biosciences, University of Salzburg, 5020 Salzburg, Austria; (A.D.); (J.H.-H.)
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; (N.S.); (L.K.); (M.S.); (M.K.); (N.K.); (D.S.); (E.W.)
- Correspondence: ; Tel.: +43-(0)1-40400-51210
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Gastric Enzyme Supplementation Inhibits Food Allergy in a BALB/c Mouse Model. Nutrients 2021; 13:nu13030738. [PMID: 33652629 PMCID: PMC7996948 DOI: 10.3390/nu13030738] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 02/08/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
Impaired gastric digestion due to suppressed gastric acidity enhances the risk for food allergy development. In the current study, we aimed to evaluate the impact of a supported gastric digestion via application of a pharmaceutical gastric enzyme solution (GES) on food allergy development and allergic reactions in a BALB/c mouse model. The ability of the GES to restore hypoacidic conditions was tested in mice treated with gastric acid suppression medication. To evaluate the impact on allergic symptoms, mice were orally sensitized with ovalbumin (OVA) under gastric acid suppression and subjected to oral challenges with or without GES. The immune response was evaluated by measurement of antibody titers, cytokine levels, mucosal allergy effector cell influx and regulatory T-cell counts. Clinical response was objectified by core body temperature measurements after oral OVA challenge. Supplementation of GES transiently restored physiological pH levels in the stomach after pharmaceutical gastric acid suppression. During oral sensitization, supplementation of gastric enzymes significantly reduced systemic IgE, IgG1 and IgG2a levels and allergic symptoms. In food allergic mice, clinical symptoms were reduced by co-administration of the gastric enzyme solution. Support of gastric digestion efficiently prevents food allergy induction and alleviates clinical symptoms in our food allergy model.
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7
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IgE Effector Mechanisms, in Concert with Mast Cells, Contribute to Acquired Host Defense against Staphylococcusaureus. Immunity 2020; 53:793-804.e9. [PMID: 32910906 DOI: 10.1016/j.immuni.2020.08.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 06/02/2020] [Accepted: 08/06/2020] [Indexed: 12/21/2022]
Abstract
Allergies are considered to represent mal-directed type 2 immune responses against mostly innocuous exogenous compounds. Immunoglobulin E (IgE) antibodies are a characteristic feature of allergies and mediate hypersensitivity against allergens through activation of effector cells, particularly mast cells (MCs). Although the physiological functions of this dangerous branch of immunity have remained enigmatic, recent evidence shows that allergic immune reactions can help to protect against the toxicity of venoms. Because bacteria are a potent alternative source of toxins, we assessed the possible role of allergy-like type 2 immunity in antibacterial host defense. We discovered that the adaptive immune response against Staphylococcus aureus (SA) skin infection substantially improved systemic host defense against secondary SA infections in mice. Moreover, this acquired protection depended on IgE effector mechanisms and MCs. Importantly, our results reveal a previously unknown physiological function of allergic immune responses, IgE antibodies, and MCs in host defense against a pathogenic bacterium.
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Ziegler K, Kunert AT, Reinmuth-Selzle K, Leifke AL, Widera D, Weller MG, Schuppan D, Fröhlich-Nowoisky J, Lucas K, Pöschl U. Chemical modification of pro-inflammatory proteins by peroxynitrite increases activation of TLR4 and NF-κB: Implications for the health effects of air pollution and oxidative stress. Redox Biol 2020; 37:101581. [PMID: 32739154 PMCID: PMC7767743 DOI: 10.1016/j.redox.2020.101581] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/10/2020] [Accepted: 05/11/2020] [Indexed: 01/05/2023] Open
Abstract
Environmental pollutants like fine particulate matter can cause adverse health effects through oxidative stress and inflammation. Reactive oxygen and nitrogen species (ROS/RNS) such as peroxynitrite can chemically modify proteins, but the effects of such modifications on the immune system and human health are not well understood. In the course of inflammatory processes, the Toll-like receptor 4 (TLR4) can sense damage-associated molecular patterns (DAMPs). Here, we investigate how the TLR4 response and pro-inflammatory potential of the proteinous DAMPs α-Synuclein (α-Syn), heat shock protein 60 (HSP60), and high-mobility-group box 1 protein (HMGB1), which are relevant in neurodegenerative and cardiovascular diseases, changes upon chemical modification with peroxynitrite. For the peroxynitrite-modified proteins, we found a strongly enhanced activation of TLR4 and the pro-inflammatory transcription factor NF-κB in stable reporter cell lines as well as increased mRNA expression and secretion of the pro-inflammatory cytokines TNF-α, IL-1β, and IL-8 in human monocytes (THP-1). This enhanced activation of innate immunity via TLR4 is mediated by covalent chemical modifications of the studied DAMPs. Our results show that proteinous DAMPs modified by peroxynitrite more potently amplify inflammation via TLR4 activation than the native DAMPs, and provide first evidence that such modifications can directly enhance innate immune responses via a defined receptor. These findings suggest that environmental pollutants and related ROS/RNS may play a role in promoting acute and chronic inflammatory disorders by structurally modifying the body's own DAMPs. This may have important consequences for chronic neurodegenerative, cardiovascular or gastrointestinal diseases that are prevalent in modern societies, and calls for action, to improve air quality and climate in the Anthropocene. Pollutants and oxidative stress can cause protein nitration and oligomerization. Peroxynitrite amplifies inflammatory potential of disease-related proteins in vitro. Chemical modification of damage-associated molecular patterns (DAMPs). Positive feedback of modified DAMPs via pattern recognition receptor (TLR4). Air pollution may promote inflammatory disorders in the Anthropocene.
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Affiliation(s)
- Kira Ziegler
- Max Planck Institute for Chemistry, Multiphase Chemistry Department, 55128, Mainz, Germany
| | - Anna T Kunert
- Max Planck Institute for Chemistry, Multiphase Chemistry Department, 55128, Mainz, Germany
| | | | - Anna Lena Leifke
- Max Planck Institute for Chemistry, Multiphase Chemistry Department, 55128, Mainz, Germany
| | - Darius Widera
- Stem Cell Biology and Regenerative Medicine Group, School of Pharmacy, University of Reading, RG6 6AP, Reading, UK
| | - Michael G Weller
- Federal Institute for Materials Research and Testing (BAM), Berlin, Germany
| | - Detlef Schuppan
- Institute of Translational Immunology, University Medical Center of the Johannes Gutenberg University, 55131, Mainz, Germany; Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, MA, 02215, USA
| | | | - Kurt Lucas
- Max Planck Institute for Chemistry, Multiphase Chemistry Department, 55128, Mainz, Germany.
| | - Ulrich Pöschl
- Max Planck Institute for Chemistry, Multiphase Chemistry Department, 55128, Mainz, Germany.
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9
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Samadi N, Klems M, Heiden D, Bauer R, Kitzmüller C, Weidmann E, Ret D, Ondracek AS, Duschl A, Horejs‐Hoeck J, Untersmayr E. Nitrated food proteins induce a regulatory immune response associated with allergy prevention after oral exposure in a Balb/c mouse food allergy model. Allergy 2020; 75:412-422. [PMID: 31444907 PMCID: PMC7064937 DOI: 10.1111/all.14030] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 07/09/2019] [Accepted: 07/23/2019] [Indexed: 12/25/2022]
Abstract
BACKGROUND Food allergy is associated with a high personal health and economic burden. For immunomodulation toward tolerance, food compounds could be chemically modified, for example, by posttranslational protein nitration, which also occurs via diet-derived nitrating agents in the gastrointestinal tract. OBJECTIVE We sought to analyze the effect of pretreatment with nitrated food proteins on the immune response in a mouse food allergy model and on human monocyte-derived dendritic cells (moDCs) and PBMCs. METHODS The model allergen ovalbumin (OVA) was nitrated in different nitration degrees, and the secondary structures of proteins were determined by circular dichroism (CD). Allergy-preventive treatment with OVA, nitrated OVA (nOVA), and maximally nitrated OVA (nOVAmax) were performed before mice were immunized with or without gastric acid-suppression medication. Antibody levels, regulatory T-cell (Treg) numbers, and cytokine levels were evaluated. Human moDCs or PBMCs were incubated with proteins and evaluated for expression of surface markers, cytokine production, and proliferation of Th2 as well as Tregs. RESULTS In contrast to OVA and nOVA, the conformation of nOVAmax was substantially changed. nOVAmax pretreated mice had decreased IgE as well as IgG1 and IgG2a levels and Treg numbers were significantly elevated, while cytokine levels remained at baseline level. nOVAmax induced a regulatory DC phenotype evidenced by a decrease of the activation marker CD86 and an increase in IL-10 production and was associated with a higher proliferation of memory Tregs. CONCLUSION Oral pretreatment with highly nitrated proteins induces a tolerogenic immune response in the food allergy model and in human immune cells.
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Affiliation(s)
- Nazanin Samadi
- Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Martina Klems
- Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Denise Heiden
- Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Renate Bauer
- Department of Biosciences University of Salzburg Salzburg Austria
| | - Claudia Kitzmüller
- Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Eleonore Weidmann
- Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Davide Ret
- Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
| | - Anna S. Ondracek
- Anna Spiegel Research Center Medical University of Vienna Vienna Austria
| | - Albert Duschl
- Department of Biosciences University of Salzburg Salzburg Austria
| | | | - Eva Untersmayr
- Department of Pathophysiology and Allergy Research Center of Pathophysiology, Infectiology and Immunology Medical University of Vienna Vienna Austria
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10
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Immune Effects of the Nitrated Food Allergen Beta-Lactoglobulin in an Experimental Food Allergy Model. Nutrients 2019; 11:nu11102463. [PMID: 31618852 PMCID: PMC6835712 DOI: 10.3390/nu11102463] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/08/2019] [Accepted: 10/12/2019] [Indexed: 12/18/2022] Open
Abstract
Food proteins may get nitrated by various exogenous or endogenous mechanisms. As individuals might get recurrently exposed to nitrated proteins via daily diet, we aimed to investigate the effect of repeatedly ingested nitrated food proteins on the subsequent immune response in non-allergic and allergic mice using the milk allergen beta-lactoglobulin (BLG) as model food protein in a mouse model. Evaluating the presence of nitrated proteins in food, we could detect 3-nitrotyrosine (3-NT) in extracts of different foods and in stomach content extracts of non-allergic mice under physiological conditions. Chemically nitrated BLG (BLGn) exhibited enhanced susceptibility to degradation in simulated gastric fluid experiments compared to untreated BLG (BLGu). Gavage of BLGn to non-allergic animals increased interferon-γ and interleukin-10 release of stimulated spleen cells and led to the formation of BLG-specific serum IgA. Allergic mice receiving three oral gavages of BLGn had higher levels of mouse mast cell protease-1 (mMCP-1) compared to allergic mice receiving BLGu. Regardless of the preceding immune status, non-allergic or allergic, repeatedly ingested nitrated food proteins seem to considerably influence the subsequent immune response.
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11
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The Effect of Digestion and Digestibility on Allergenicity of Food. Nutrients 2018; 10:nu10091129. [PMID: 30134536 PMCID: PMC6164088 DOI: 10.3390/nu10091129] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Revised: 08/03/2018] [Accepted: 08/13/2018] [Indexed: 01/08/2023] Open
Abstract
Food allergy prevalence numbers are still on the rise. Apart from environmental influences, dietary habits, food availability and life-style factors, medication could also play a role. For immune tolerance of food, several contributing factors ensure that dietary compounds are immunologically ignored and serve only as source for energy and nutrient supply. Functional digestion along the gastrointestinal tract is essential for the molecular breakdown and a prerequisite for appropriate uptake in the intestine. Digestion and digestibility of carbohydrates and proteins thus critically affect the risk of food allergy development. In this review, we highlight the influence of amylases, gastric acid- and trypsin-inhibitors, as well as of food processing in the context of food allergenicity.
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12
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Pekar J, Ret D, Untersmayr E. Stability of allergens. Mol Immunol 2018; 100:14-20. [PMID: 29606336 PMCID: PMC6020993 DOI: 10.1016/j.molimm.2018.03.017] [Citation(s) in RCA: 73] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 03/19/2018] [Accepted: 03/20/2018] [Indexed: 02/07/2023]
Abstract
For proteins to cause IgE-mediated allergic reactions, several common characteristics have to be defined, including small molecular size, solubility and stability to changing pH levels and enzymatic degradation. Nevertheless, these features are not unique for potent allergens, but are also observed in non-allergenic proteins. Due to the increasing awareness by regulatory authorities regarding the allergy pandemic, definition of characteristics unique to potent allergens would facilitate allergenicity assessment in the future. Despite major research efforts even to date the features unique for major allergens have not been elucidated so far. The route of allergen entry into the organism determines to a great extent these required characteristics. Especially orally ingested allergens are exposed to the harsh milieu of the gastrointestinal tract but might additionally be influenced by food processing. Depending on molecular properties such as disulphide bonds contributing to protein fold and formation of conformational IgE epitopes, posttranslational protein modification or protein food matrix interactions, enzymatic and thermal stability might differ between allergens. Moreover, also ligand binding influences structural stability. In the current review article, we aim at highlighting specific characteristics and molecular pattern contributing to a stabilized protein structure and overall allergenicity.
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Affiliation(s)
- Judith Pekar
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria
| | - Davide Ret
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria; Division of Macromolecular Chemistry, Institute of Applied Synthetic Chemistry, Vienna University of Technology, 1060 Vienna, Austria
| | - Eva Untersmayr
- Institute of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, 1090 Vienna, Austria.
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13
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Ito T, Ogino K, Nagaoka K, Takemoto K. Relationship of particulate matter and ozone with 3-nitrotyrosine in the atmosphere. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2018; 236:948-952. [PMID: 29129430 DOI: 10.1016/j.envpol.2017.10.069] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2017] [Revised: 09/22/2017] [Accepted: 10/16/2017] [Indexed: 06/07/2023]
Abstract
The prevalence of allergic diseases has increased in the past few decades. Bio-aerosol proteins and their chemical modifications, such as 3-nitrotyrosine (3-NT), in the atmosphere have been attracting attention due to their promotive effects on allergies. 3-NT is generated from the amino acid, tyrosine, through a reaction with ozone (O3) and nitrogen dioxide (NO2). However, the underlying mechanisms have not yet been elucidated in detail. Therefore, we measured 3-NT and evaluated the relationships among 3-NT and various pollutants such as sulfur dioxide (SO2), NOx (NO + NO2), ozone (O3), PM7, total suspended particulate matter (TSP) containing proteins, humidity, and temperature. 3-NT positively correlated with O3, SO2, humidity, and temperature, and negatively correlated with NOx. A multiple regression analysis showed that 3-NT positively associated with O3, humidity, and PM7. O3 positively associated with 3-NT and PM7, and negatively associated with NOx and humidity. These results suggest that 3-NT is generated from PM proteins through a reaction with O3 under high humidity conditions, and that the measurement of 3-NT is important and useful for the research of O3.
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Affiliation(s)
- Tatsuo Ito
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, Kita-ku, Okayama, Japan
| | - Keiki Ogino
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, Kita-ku, Okayama, Japan.
| | - Kenjiro Nagaoka
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, Kita-ku, Okayama, Japan
| | - Kei Takemoto
- Department of Public Health, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Science, 2-5-1, Shikata-cho, Kita-ku, Okayama, Japan
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14
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Shahali Y, Dadar M. Plant food allergy: Influence of chemicals on plant allergens. Food Chem Toxicol 2018; 115:365-374. [PMID: 29580820 DOI: 10.1016/j.fct.2018.03.032] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2018] [Revised: 03/14/2018] [Accepted: 03/22/2018] [Indexed: 12/15/2022]
Abstract
Plant-derived foods are the most common allergenic sources in adulthood. Owing to the rapidly increasing prevalence of plant food allergies in industrialized countries, the environmental factors are suspected to play a key role in development of allergic sensitization. The present article provides an overview of ways by which chemicals may influence the development and severity of allergic reactions to plant foods, with especial focus on plant allergens up-regulated under chemical stress. In plants, a substantial part of allergens have defense-related function and their expression is highly influenced by environmental stress and diseases. Pathogenesis-related proteins (PR) account for about 25% of plant food allergens and some are responsible for extensive cross-reactions between plant-derived foods, pollen and latex allergens. Chemicals released by anthropogenic sources such as agriculture, industrial activities and traffic-related air pollutants are potential drivers of the increasing sensitization to allergenic PRs by elevating their expression and by altering their immunogenicity through post-translational modifications. In addition, some orally-taken chemicals may act as immune adjuvants or directly trigger non-IgE mediated food allergy. Taken together, the current literature provides an overwhelming body of evidence supporting the fact that plant chemical exposure and chemicals in diet may enhance the allergenic properties of certain plant-derived foods.
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Affiliation(s)
- Youcef Shahali
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
| | - Maryam Dadar
- Razi Vaccine and Serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran.
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15
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Gusenkov S, Stutz H. Top-down and bottom-up characterization of nitrated birch pollen allergen Bet v 1a with CZE hyphenated to an Orbitrap mass spectrometer. Electrophoresis 2018; 39:1190-1200. [PMID: 29389018 PMCID: PMC6175448 DOI: 10.1002/elps.201700413] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Revised: 01/19/2018] [Accepted: 01/19/2018] [Indexed: 11/19/2022]
Abstract
Tyrosine (Tyr) residues of the major pollen allergen of birch Betula verrucosa, Bet v 1a, were nitrated by peroxynitrite. This modification enhances the allergenicity. Modified tyrosines were identified by analyzing intact allergen variants in combination with top‐down and bottom‐up approaches. Therefore, a laboratory‐built sheath‐liquid assisted ESI interface was applied for hyphenation of CE to an Orbitrap mass spectrometer to localize individual nitration sites. The major focus was on identification of primary nitration sites. The top‐down approach unambiguously identified Tyr 5 as the most prominent modification site. Fragments from the allergen core and the C‐terminal part carried up to three potential nitration sites, respectively. Thus, a bottom‐up approach with tryptic digest was used as a complementary strategy which allowed for the unambiguous localization of nitration sites within the respective peptides. Nitration propensity for individual Tyr residues was addressed by comparison of MS signals of nitrated peptides relative to all cognates of homolog primary sequence. Combined data identified surface exposed Tyr 5 and Tyr 66 as major nitration sites followed by less accessible Tyr 158 whereas Tyr 81, 83 and 150 possess a lower nitration tendency and are apparently modified in variants with higher nitration levels.
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Affiliation(s)
- Sergey Gusenkov
- Department of Biosciences, University of Salzburg, Salzburg, Austria
| | - Hanno Stutz
- Department of Biosciences, University of Salzburg, Salzburg, Austria
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16
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Shiraiwa M, Ueda K, Pozzer A, Lammel G, Kampf CJ, Fushimi A, Enami S, Arangio AM, Fröhlich-Nowoisky J, Fujitani Y, Furuyama A, Lakey PSJ, Lelieveld J, Lucas K, Morino Y, Pöschl U, Takahama S, Takami A, Tong H, Weber B, Yoshino A, Sato K. Aerosol Health Effects from Molecular to Global Scales. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:13545-13567. [PMID: 29111690 DOI: 10.1021/acs.est.7b04417] [Citation(s) in RCA: 208] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
Poor air quality is globally the largest environmental health risk. Epidemiological studies have uncovered clear relationships of gaseous pollutants and particulate matter (PM) with adverse health outcomes, including mortality by cardiovascular and respiratory diseases. Studies of health impacts by aerosols are highly multidisciplinary with a broad range of scales in space and time. We assess recent advances and future challenges regarding aerosol effects on health from molecular to global scales through epidemiological studies, field measurements, health-related properties of PM, and multiphase interactions of oxidants and PM upon respiratory deposition. Global modeling combined with epidemiological exposure-response functions indicates that ambient air pollution causes more than four million premature deaths per year. Epidemiological studies usually refer to PM mass concentrations, but some health effects may relate to specific constituents such as bioaerosols, polycyclic aromatic compounds, and transition metals. Various analytical techniques and cellular and molecular assays are applied to assess the redox activity of PM and the formation of reactive oxygen species. Multiphase chemical interactions of lung antioxidants with atmospheric pollutants are crucial to the mechanistic and molecular understanding of oxidative stress upon respiratory deposition. The role of distinct PM components in health impacts and mortality needs to be clarified by integrated research on various spatiotemporal scales for better evaluation and mitigation of aerosol effects on public health in the Anthropocene.
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Affiliation(s)
- Manabu Shiraiwa
- Department of Chemistry, University of California , Irvine, California 92697, United States
| | - Kayo Ueda
- Kyoto University , Kyoto 606-8501, Japan
| | | | - Gerhard Lammel
- Research Centre for Toxic Compounds in the Environment, Masaryk University , 625 00 Brno, Czech Republic
| | - Christopher J Kampf
- Institute for Organic Chemistry, Johannes Gutenberg University , 55122 Mainz, Germany
| | - Akihiro Fushimi
- National Institute for Environmental Studies , Tsukuba 305-8506, Japan
| | - Shinichi Enami
- National Institute for Environmental Studies , Tsukuba 305-8506, Japan
| | - Andrea M Arangio
- Swiss Federal Institute of Technology in Lausanne (EPFL) , Lausanne 1015, Switzerland
| | | | - Yuji Fujitani
- National Institute for Environmental Studies , Tsukuba 305-8506, Japan
| | - Akiko Furuyama
- National Institute for Environmental Studies , Tsukuba 305-8506, Japan
| | - Pascale S J Lakey
- Department of Chemistry, University of California , Irvine, California 92697, United States
| | | | | | - Yu Morino
- National Institute for Environmental Studies , Tsukuba 305-8506, Japan
| | | | - Satoshi Takahama
- Swiss Federal Institute of Technology in Lausanne (EPFL) , Lausanne 1015, Switzerland
| | - Akinori Takami
- National Institute for Environmental Studies , Tsukuba 305-8506, Japan
| | | | | | - Ayako Yoshino
- National Institute for Environmental Studies , Tsukuba 305-8506, Japan
| | - Kei Sato
- National Institute for Environmental Studies , Tsukuba 305-8506, Japan
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17
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Aitoro R, Paparo L, Amoroso A, Di Costanzo M, Cosenza L, Granata V, Di Scala C, Nocerino R, Trinchese G, Montella M, Ercolini D, Berni Canani R. Gut Microbiota as a Target for Preventive and Therapeutic Intervention against Food Allergy. Nutrients 2017; 9:nu9070672. [PMID: 28657607 PMCID: PMC5537787 DOI: 10.3390/nu9070672] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Revised: 06/15/2017] [Accepted: 06/23/2017] [Indexed: 12/24/2022] Open
Abstract
The gut microbiota plays a pivotal role in immune system development and function. Modification in the gut microbiota composition (dysbiosis) early in life is a critical factor affecting the development of food allergy. Many environmental factors including caesarean delivery, lack of breast milk, drugs, antiseptic agents, and a low-fiber/high-fat diet can induce gut microbiota dysbiosis, and have been associated with the occurrence of food allergy. New technologies and experimental tools have provided information regarding the importance of select bacteria on immune tolerance mechanisms. Short-chain fatty acids are crucial metabolic products of gut microbiota responsible for many protective effects against food allergy. These compounds are involved in epigenetic regulation of the immune system. These evidences provide a foundation for developing innovative strategies to prevent and treat food allergy. Here, we present an overview on the potential role of gut microbiota as the target of intervention against food allergy.
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Affiliation(s)
- Rosita Aitoro
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Lorella Paparo
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Antonio Amoroso
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Margherita Di Costanzo
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Linda Cosenza
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Viviana Granata
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Carmen Di Scala
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Rita Nocerino
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Giovanna Trinchese
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Mariangela Montella
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
| | - Danilo Ercolini
- Department of Agricultural Sciences, Division of Microbiology, University of Naples "Federico II", 80055 Portici, Italy.
- Task Force on Microbiome Studies, University of Naples "Federico II", 80131 Naples, Italy.
| | - Roberto Berni Canani
- Department of Translational Medical Science-Pediatric Section, University of Naples "Federico II", 80131 Naples, Italy.
- Task Force on Microbiome Studies, University of Naples "Federico II", 80131 Naples, Italy.
- European Laboratory for the Investigation of Food Induced Diseases, University of Naples "Federico II", 80131 Naples, Italy.
- CEINGE Advanced Biotechnologies, University of Naples "Federico II", 80131 Naples, Italy.
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18
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Reinmuth-Selzle K, Kampf CJ, Lucas K, Lang-Yona N, Fröhlich-Nowoisky J, Shiraiwa M, Lakey PSJ, Lai S, Liu F, Kunert AT, Ziegler K, Shen F, Sgarbanti R, Weber B, Bellinghausen I, Saloga J, Weller MG, Duschl A, Schuppan D, Pöschl U. Air Pollution and Climate Change Effects on Allergies in the Anthropocene: Abundance, Interaction, and Modification of Allergens and Adjuvants. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2017; 51:4119-4141. [PMID: 28326768 PMCID: PMC5453620 DOI: 10.1021/acs.est.6b04908] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 03/07/2017] [Accepted: 03/22/2017] [Indexed: 05/13/2023]
Abstract
Air pollution and climate change are potential drivers for the increasing burden of allergic diseases. The molecular mechanisms by which air pollutants and climate parameters may influence allergic diseases, however, are complex and elusive. This article provides an overview of physical, chemical and biological interactions between air pollution, climate change, allergens, adjuvants and the immune system, addressing how these interactions may promote the development of allergies. We reviewed and synthesized key findings from atmospheric, climate, and biomedical research. The current state of knowledge, open questions, and future research perspectives are outlined and discussed. The Anthropocene, as the present era of globally pervasive anthropogenic influence on planet Earth and, thus, on the human environment, is characterized by a strong increase of carbon dioxide, ozone, nitrogen oxides, and combustion- or traffic-related particulate matter in the atmosphere. These environmental factors can enhance the abundance and induce chemical modifications of allergens, increase oxidative stress in the human body, and skew the immune system toward allergic reactions. In particular, air pollutants can act as adjuvants and alter the immunogenicity of allergenic proteins, while climate change affects the atmospheric abundance and human exposure to bioaerosols and aeroallergens. To fully understand and effectively mitigate the adverse effects of air pollution and climate change on allergic diseases, several challenges remain to be resolved. Among these are the identification and quantification of immunochemical reaction pathways involving allergens and adjuvants under relevant environmental and physiological conditions.
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Affiliation(s)
| | - Christopher J. Kampf
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
- Institute
of Inorganic and Analytical Chemistry, Johannes
Gutenberg University, Mainz, 55128, Germany
| | - Kurt Lucas
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Naama Lang-Yona
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | | | - Manabu Shiraiwa
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
- Department
of Chemistry, University of California, Irvine, California 92697-2025, United States
| | - Pascale S. J. Lakey
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Senchao Lai
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
- South
China University of Technology, School of
Environment and Energy, Guangzhou, 510006, China
| | - Fobang Liu
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Anna T. Kunert
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Kira Ziegler
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Fangxia Shen
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Rossella Sgarbanti
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Bettina Weber
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
| | - Iris Bellinghausen
- Department
of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, 55131, Germany
| | - Joachim Saloga
- Department
of Dermatology, University Medical Center, Johannes Gutenberg University, Mainz, 55131, Germany
| | - Michael G. Weller
- Division
1.5 Protein Analysis, Federal Institute
for Materials Research and Testing (BAM), Berlin, 12489, Germany
| | - Albert Duschl
- Department
of Molecular Biology, University of Salzburg, 5020 Salzburg, Austria
| | - Detlef Schuppan
- Institute
of Translational Immunology and Research Center for Immunotherapy,
Institute of Translational Immunology, University Medical Center, Johannes Gutenberg University, Mainz, 55131 Germany
- Division
of Gastroenterology, Beth Israel Deaconess
Medical Center and Harvard Medical School, Boston, Massachusetts 02215, United States
| | - Ulrich Pöschl
- Multiphase
Chemistry Department, Max Planck Institute
for Chemistry, Mainz, 55128, Germany
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19
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Diesner SC, Bergmayr C, Pfitzner B, Assmann V, Krishnamurthy D, Starkl P, Endesfelder D, Rothballer M, Welzl G, Rattei T, Eiwegger T, Szépfalusi Z, Fehrenbach H, Jensen-Jarolim E, Hartmann A, Pali-Schöll I, Untersmayr E. A distinct microbiota composition is associated with protection from food allergy in an oral mouse immunization model. Clin Immunol 2016; 173:10-18. [PMID: 27789346 PMCID: PMC5464391 DOI: 10.1016/j.clim.2016.10.009] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 10/14/2016] [Accepted: 10/21/2016] [Indexed: 01/08/2023]
Abstract
In our mouse model, gastric acid-suppression is associated with antigen-specific IgE and anaphylaxis development. We repeatedly observed non-responder animals protected from food allergy. Here, we aimed to analyse reasons for this protection. Ten out of 64 mice, subjected to oral ovalbumin (OVA) immunizations under gastric acid-suppression, were non-responders without OVA-specific IgE or IgG1 elevation, indicating protection from allergy. In these non-responders, allergen challenges confirmed reduced antigen uptake and lack of anaphylactic symptoms, while in allergic mice high levels of mouse mast-cell protease-1 and a body temperature reduction, indicative for anaphylaxis, were determined. Upon OVA stimulation, significantly lower IL-4, IL-5, IL-10 and IL-13 levels were detected in non-responders, while IL-22 was significantly higher. Comparison of fecal microbiota revealed differences of bacterial communities on single bacterial Operational-Taxonomic-Unit level between the groups, indicating protection from food allergy being associated with a distinct microbiota composition in a non-responding phenotype in this mouse model.
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Affiliation(s)
- Susanne C. Diesner
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Cornelia Bergmayr
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Barbara Pfitzner
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Department of Environmental Sciences, Research Unit Microbe-Plant Interactions, Research Group Molecular Microbial Ecology, Neuherberg, Germany
| | - Vera Assmann
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Durga Krishnamurthy
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Philipp Starkl
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - David Endesfelder
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Scientific Computing Research Unit, Neuherberg, Germany
| | - Michael Rothballer
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Department of Environmental Sciences, Research Unit Microbe-Plant Interactions, Research Group Molecular Microbial Ecology, Neuherberg, Germany
| | - Gerhard Welzl
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Department of Environmental Sciences, Research Unit Environmental Genomics, Neuherberg, Germany
| | - Thomas Rattei
- University of Vienna, Division of Computational Systems Biology, Vienna, Austria
| | - Thomas Eiwegger
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Zsolt Szépfalusi
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Heinz Fehrenbach
- Division of Experimental Pneumology, Priority Area Asthma & Allergy, Research Center Borstel, Airway Research Center North (ARCN), Member of the German Center for Lung Research (DZL), Borstel, Germany
| | - Erika Jensen-Jarolim
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Comparative Medicine, Messerli Research Institute of the Veterinary University of Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria
| | - Anton Hartmann
- Helmholtz Zentrum München, German Research Center for Environmental Health (GmbH), Department of Environmental Sciences, Research Unit Microbe-Plant Interactions, Research Group Molecular Microbial Ecology, Neuherberg, Germany
| | - Isabella Pali-Schöll
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Comparative Medicine, Messerli Research Institute of the Veterinary University of Vienna, Medical University of Vienna, University of Vienna, Vienna, Austria
| | - Eva Untersmayr
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
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20
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Pablos-Tanarro A, López-Expósito I, Lozano-Ojalvo D, López-Fandiño R, Molina E. Antibody Production, Anaphylactic Signs, and T-Cell Responses Induced by Oral Sensitization With Ovalbumin in BALB/c and C3H/HeOuJ Mice. ALLERGY, ASTHMA & IMMUNOLOGY RESEARCH 2016; 8:239-45. [PMID: 26922934 PMCID: PMC4773212 DOI: 10.4168/aair.2016.8.3.239] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 06/30/2015] [Accepted: 07/24/2015] [Indexed: 12/17/2022]
Abstract
Purpose Two mouse strains, BALB/c and C3H/HeOuJ, broadly used in the field of food allergy, were compared for the evaluation of the allergenic potential of ovalbumin (OVA). Methods Sensitization was made by administering 2 different OVA doses (1 and 5 mg), with cholera toxin as Th2-polarizing adjuvant. Antibody levels, severity of anaphylaxis, and Th1 and Th2 responses induced by the allergen were assessed. In addition, because the mice selected had functional toll-like receptor 4, the influence of contamination with lipopolysaccharide (LPS) on the immunostimulating capacity of OVA on spleen cells was also evaluated. Results Both strains exhibited similar susceptibility to OVA sensitization. The 2 protein doses generated similar OVA-specific IgE and IgG1 levels in both strains, whereas C3H/HeOuJ mice produced significantly more IgG2a. Oral challenge provoked more severe manifestations in C3H/HeOuJ mice as indicated by the drop in body temperature and the severity of the anaphylactic scores. Stimulation of splenocytes with OVA led to significantly higher levels of Th2 and Th1 cytokines in BALB/c, and these were less affected by protein contamination with LPS. Conclusions The antibody and cytokine levels induced by OVA in BALB/c mice and the observation that BALB/c spleen cell cultures were more resistant than those of C3H/HeOuJ mice to the stimulus of LPS make this strain prone to exhibit Th2-mediated food allergic reactions and very adequate for the study of the features of OVA that make it allergenic.
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Affiliation(s)
- Alba Pablos-Tanarro
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera, Madrid, Spain
| | - Ivan López-Expósito
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera, Madrid, Spain
| | - Daniel Lozano-Ojalvo
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera, Madrid, Spain
| | - Rosina López-Fandiño
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera, Madrid, Spain
| | - Elena Molina
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera, Madrid, Spain.
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21
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Benedé S, López-Expósito I, Molina E, López-Fandiño R. Egg proteins as allergens and the effects of the food matrix and processing. Food Funct 2016; 6:694-713. [PMID: 25598200 DOI: 10.1039/c4fo01104j] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Hen eggs are an important and inexpensive source of high-quality proteins in the human diet. Egg, either as a whole or its constituents (egg yolk and white), is a key ingredient in many food products by virtue of its nutritional value and unique functional properties, such as emulsifying, foaming, and gelling. Nevertheless, egg is also known because of its allergenic potential and, in fact, it is the second most frequent source of allergic reactions, particularly in children. This review deals with the structural or functional properties of egg proteins that make them strong allergens. Their ability to sensitize and/or elicit allergic reactions is linked to their resistance to gastroduodenal digestion, which ultimately allows them to interact with the intestinal mucosa where absorption occurs. The factors that affect protein digestibility, whether increasing it, decreasing it, or inducing a different proteolysis pattern, and their influence on their capacity to induce or trigger an allergic reaction are discussed. Special attention is paid to the effect of the food matrix and the processing practices on the capacity of egg proteins to modulate the immune response.
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Affiliation(s)
- S Benedé
- Instituto de Investigación en Ciencias de la Alimentación (CIAL, CSIC-UAM), Nicolás Cabrera 9, 28049 Madrid, Spain.
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22
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Zhou C, Ludmila T, Sun N, Wang C, Pu Q, Huang K, Che H. BALB/c mice can be used to evaluate allergenicity of different food protein extracts. FOOD AGR IMMUNOL 2016. [DOI: 10.1080/09540105.2015.1129600] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Cui Zhou
- School of Public Health, Capital Medical University, Beijing, People's Republic of China
| | - Tekutyeva Ludmila
- Merchandizing and Goods Examination Department, Far Eastern Federal University (FEFU), Vladivostok, Russia
| | - Na Sun
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China
| | - Cuiyan Wang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China
| | - Qiankun Pu
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China
| | - Kunlun Huang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China
| | - Huilian Che
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, People's Republic of China
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Lang-Yona N, Shuster-Meiseles T, Mazar Y, Yarden O, Rudich Y. Impact of urban air pollution on the allergenicity of Aspergillus fumigatus conidia: Outdoor exposure study supported by laboratory experiments. THE SCIENCE OF THE TOTAL ENVIRONMENT 2016; 541:365-371. [PMID: 26410711 DOI: 10.1016/j.scitotenv.2015.09.058] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 09/10/2015] [Accepted: 09/13/2015] [Indexed: 04/15/2023]
Abstract
Understanding the chemical interactions of common allergens in urban environments may help to decipher the general increase in susceptibility to allergies observed in recent decades. In this study, asexual conidia of the allergenic mold Aspergillus fumigatus were exposed to air pollution under natural (ambient) and controlled (laboratory) conditions. The allergenic activity was measured using two immunoassays and supported by a protein mass spectrometry analysis. The allergenicity of the conidia was found to increase by 2-5 fold compared to the control for short exposure times of up to 12h (accumulated exposure of about 50 ppb NO2 and 750 ppb O3), possibly due to nitration. At higher exposure times, the allergenicity increase lessened due to protein deamidation. These results indicate that during the first 12h of exposure, the allergenic potency of the fungal allergen A. fumigatus in polluted urban environments is expected to increase. Additional work is needed in order to determine if this behavior occurs for other allergens.
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Affiliation(s)
- Naama Lang-Yona
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Timor Shuster-Meiseles
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Yinon Mazar
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel
| | - Oded Yarden
- Department of Plant Pathology and Microbiology, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot 76100, Israel
| | - Yinon Rudich
- Department of Earth and Planetary Sciences, Weizmann Institute of Science, Rehovot 76100, Israel.
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24
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Zhao F, Elkelish A, Durner J, Lindermayr C, Winkler JB, Ruёff F, Behrendt H, Traidl-Hoffmann C, Holzinger A, Kofler W, Braun P, von Toerne C, Hauck SM, Ernst D, Frank U. Common ragweed (Ambrosia artemisiifolia L.): allergenicity and molecular characterization of pollen after plant exposure to elevated NO2. PLANT, CELL & ENVIRONMENT 2016; 39:147-64. [PMID: 26177592 DOI: 10.1111/pce.12601] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Revised: 06/17/2015] [Accepted: 06/18/2015] [Indexed: 05/27/2023]
Abstract
Ragweed pollen is the main cause of allergenic diseases in Northern America, and the weed has become a spreading neophyte in Europe. Climate change and air pollution are speculated to affect the allergenic potential of pollen. The objective of this study was to investigate the effects of NO2 , a major air pollutant, under controlled conditions, on the allergenicity of ragweed pollen. Ragweed was exposed to different levels of NO2 throughout the entire growing season, and its pollen further analysed. Spectroscopic analysis showed increased outer cell wall polymers and decreased amounts of pectin. Proteome studies using two-dimensional difference gel electrophoresis and liquid chromatography-tandem mass spectrometry indicated increased amounts of several Amb a 1 isoforms and of another allergen with great homology to enolase Hev b 9 from rubber tree. Analysis of protein S-nitrosylation identified nitrosylated proteins in pollen from both conditions, including Amb a 1 isoforms. However, elevated NO2 significantly enhanced the overall nitrosylation. Finally, we demonstrated increased overall pollen allergenicity by immunoblotting using ragweed antisera, showing a significantly higher allergenicity for Amb a 1. The data highlight a direct influence of elevated NO2 on the increased allergenicity of ragweed pollen and a direct correlation with an increased risk for human health.
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Affiliation(s)
- Feng Zhao
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
| | - Amr Elkelish
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
- Botany Department, Faculty of Science, Suez Canal University, Ismailia, 41522, Egypt
| | - Jörg Durner
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
- Biochemical Plant Pathology, Technische Universität München, Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt, Freising, 85350, Germany
| | - Christian Lindermayr
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
| | - J Barbro Winkler
- Research Unit Environmental Simulation, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
| | - Franziska Ruёff
- Clinic and Polyclinic for Dermatology and Allergology, Faculty of Medicine, LMU München, Munich, 80337, Germany
| | - Heidrun Behrendt
- Center of Allergy & Environment München (ZAUM), Technische Universität and Helmholtz Zentrum München, Munich, 80802, Germany
- CK-CARE, Christine Kühne - Center for Allergy Research and Education, Davos, 7265, Switzerland
| | - Claudia Traidl-Hoffmann
- CK-CARE, Christine Kühne - Center for Allergy Research and Education, Davos, 7265, Switzerland
- Institute of Environmental Medicine, UNIKA-T, Technische Universität München, Augsburg, 86156, Germany
| | - Andreas Holzinger
- Institute for Botany, Leopold-Franzens Universität Innsbruck, Innsbruck, 6020, Austria
| | - Werner Kofler
- Institute for Botany, Leopold-Franzens Universität Innsbruck, Innsbruck, 6020, Austria
| | - Paula Braun
- Department of Applied Sciences and Mechanotronics, University of Applied Science Munich, Munich, 80335, Germany
| | - Christine von Toerne
- Research Unit Protein Science, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
| | - Stefanie M Hauck
- Research Unit Protein Science, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
| | - Dieter Ernst
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
- CK-CARE, Christine Kühne - Center for Allergy Research and Education, Davos, 7265, Switzerland
| | - Ulrike Frank
- Institute of Biochemical Plant Pathology, Helmholtz Zentrum München, German Research Center for Environmental Health, Neuherberg, 85764, Germany
- CK-CARE, Christine Kühne - Center for Allergy Research and Education, Davos, 7265, Switzerland
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25
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Untersmayr E. The influence of gastric digestion on the development of food allergy. REVUE FRANCAISE D ALLERGOLOGIE 2015; 55:444-447. [PMID: 28616101 DOI: 10.1016/j.reval.2015.09.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Food allergy represents an increasing health concern worldwide. To identify mechanisms and risk factors associated with food allergy development major research efforts are ongoing. For a long time only food allergens that are resistant to gastric enzymes were accepted to harbor sensitizing capacity via the oral route. However, over the past years several studies reported that even important food allergens can be readily degraded by digestive enzymes. Interestingly, a number of in vitro experiments confirmed that impairment of physiological gastric digestion by elevating gastric pH levels was associated with protein resistance. Additionally, pharmacological gastric acid suppression was found to be a risk factor for food allergy induction. In contrast, protein modifications resulting in increased susceptibility to digestive enzymes were reported to decrease the sensitization capacity via the oral route. The here reviewed data highlight the important gate keeping function of physiological gastric digestion in food allergy.
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Affiliation(s)
- Eva Untersmayr
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
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26
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Diesner SC, Schultz C, Ackaert C, Oostingh GJ, Ondracek A, Stremnitzer C, Singer J, Heiden D, Roth-Walter F, Fazekas J, Assmann VE, Jensen-Jarolim E, Stutz H, Duschl A, Untersmayr E. Nitration of β-Lactoglobulin but Not of Ovomucoid Enhances Anaphylactic Responses in Food Allergic Mice. PLoS One 2015; 10:e0126279. [PMID: 25955653 PMCID: PMC4425501 DOI: 10.1371/journal.pone.0126279] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 03/31/2015] [Indexed: 12/31/2022] Open
Abstract
Background We revealed in previous studies that nitration of food proteins reduces the risk of de novo sensitization in a murine food allergy model. In contrast, in situations with preformed specific IgE antibodies, in vitro experiments suggested an increased capacity of effector cell activation by nitrated food proteins. Objective The aim of this study was to investigate the influence of protein nitration on the effector phase of food allergy. Design BALB/c mice were immunized intraperitoneally (i.p.) with the milk allergen β-lactoglobulin (BLG) or the egg allergen ovomucoid (OVM), followed by intragastric (i.g.) gavages to induce a strong local inflammatory response and allergen-specific antibodies. Subsequently, naïve and allergic mice were intravenously (i.v.) challenged with untreated, sham-nitrated or nitrated BLG or OVM. Anaphylaxis was monitored by measuring core body temperature and determination of mouse mast cell protease-1 (mMCP-1) levels in blood. Results A significant drop of body temperature accompanied with significantly elevated concentrations of the anaphylaxis marker mMCP-1 were only observed in BLG allergic animals challenged with nitrated BLG and not in OVM allergic mice challenged with nitrated OVM. SDS-PAGE and circular dichroism analysis of the differentially modified allergens revealed an effect of nitration on the secondary protein structure exclusively for BLG together with enhanced protein aggregation. Conclusion Our data suggest that nitration affects differently the food allergens BLG and OVM. In the case of BLG, structural changes favored dimerization possibly explaining the increased anaphylactic reactivity in BLG allergic animals.
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Affiliation(s)
- Susanne C. Diesner
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Department of Pediatrics and Adolescent Medicine, Medical University of Vienna, Vienna, Austria
| | - Cornelia Schultz
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Chloé Ackaert
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Gertie J. Oostingh
- Biomedical Sciences, Salzburg University of Applied Sciences, Puch/Salzburg, Austria
| | - Anna Ondracek
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Caroline Stremnitzer
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Josef Singer
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Denise Heiden
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Franziska Roth-Walter
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Comparative Medicine, Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria
| | - Judit Fazekas
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Vera E. Assmann
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Erika Jensen-Jarolim
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Comparative Medicine, Messerli Research Institute of the University of Veterinary Medicine Vienna, Medical University Vienna and University Vienna, Vienna, Austria
| | - Hanno Stutz
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Albert Duschl
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Eva Untersmayr
- Department of Pathophysiology and Allergy Research, Center of Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- * E-mail:
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27
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Houée-Lévin C, Bobrowski K, Horakova L, Karademir B, Schöneich C, Davies MJ, Spickett CM. Exploring oxidative modifications of tyrosine: An update on mechanisms of formation, advances in analysis and biological consequences. Free Radic Res 2015; 49:347-73. [DOI: 10.3109/10715762.2015.1007968] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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28
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Lassé M, Deb-Choudhury S, Haines S, Larsen N, Gerrard JA, Dyer JM. The impact of pH, salt concentration and heat on digestibility and amino acid modification in egg white protein. J Food Compost Anal 2015. [DOI: 10.1016/j.jfca.2014.08.007] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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29
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Kristl T, Stutz H. Comparison of different mobilization strategies for capillary isoelectric focusing of ovalbumin variants†. J Sep Sci 2014; 38:148-56. [DOI: 10.1002/jssc.201400890] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2014] [Revised: 10/20/2014] [Accepted: 10/20/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Theresa Kristl
- Division of Chemistry and Bioanalytics; Department of Molecular Biology; University of Salzburg; Salzburg Austria
| | - Hanno Stutz
- Division of Chemistry and Bioanalytics; Department of Molecular Biology; University of Salzburg; Salzburg Austria
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30
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Reinmuth-Selzle K, Ackaert C, Kampf CJ, Samonig M, Shiraiwa M, Kofler S, Yang H, Gadermaier G, Brandstetter H, Huber CG, Duschl A, Oostingh GJ, Pöschl U. Nitration of the birch pollen allergen Bet v 1.0101: efficiency and site-selectivity of liquid and gaseous nitrating agents. J Proteome Res 2014; 13:1570-7. [PMID: 24517313 PMCID: PMC3950889 DOI: 10.1021/pr401078h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
![]()
Nitration
of the major birch pollen allergen Bet v 1 alters the
immune responses toward this protein, but the underlying chemical
mechanisms are not yet understood. Here we address the efficiency
and site-selectivity of the nitration reaction of recombinant protein
samples of Bet v 1.0101 with different nitrating agents relevant for
laboratory investigations (tetranitromethane, TNM), for physiological
processes (peroxynitrite, ONOO–), and for the health
effects of environmental pollutants (nitrogen dioxide and ozone, O3/NO2). We determined the total tyrosine nitration
degrees (ND) and the NDs of individual tyrosine residues (NDY). High-performance liquid chromatography coupled to diode array
detection and HPLC coupled to high-resolution mass spectrometry analysis
of intact proteins, HPLC coupled to tandem mass spectrometry analysis
of tryptic peptides, and amino acid analysis of hydrolyzed samples
were performed. The preferred reaction sites were tyrosine residues
at the following positions in the polypeptide chain: Y83 and Y81 for
TNM, Y150 for ONOO–, and Y83 and Y158 for O3/NO2. The tyrosine residues Y83 and Y81 are located
in a hydrophobic cavity, while Y150 and Y158 are located in solvent-accessible
and flexible structures of the C-terminal region. The heterogeneous
reaction with O3/NO2 was found to be strongly
dependent on the phase state of the protein. Nitration rates were
about one order of magnitude higher for aqueous protein solutions
(∼20% per day) than for protein filter samples (∼2%
per day). Overall, our findings show that the kinetics and site-selectivity
of nitration strongly depend on the nitrating agent and reaction conditions,
which may also affect the biological function and adverse health effects
of the nitrated protein.
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Affiliation(s)
- Kathrin Reinmuth-Selzle
- Multiphase Chemistry and Biogeochemistry Departments, Max Planck Institute for Chemistry , Hahn-Meitner Weg 1, 55128 Mainz, Germany
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31
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Hochscheid R, Schreiber N, Kotte E, Weber P, Cassel W, Yang H, Zhang Y, Pöschl U, Müller B. Nitration of protein without allergenic potential triggers modulation of antioxidant response in type II pneumocytes. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART A 2014; 77:679-95. [PMID: 24786675 DOI: 10.1080/15287394.2014.888023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Inhalation of nitrogen and reactive oxygen species (ROS) is known to induce lung inflammation, which is prevented by enzymatic and nonenzymatic antioxidant systems. These agents form nitrated allergens that were shown to enhance allergenicity. The aim of this study was to examine the influence of nitrated proteins on inflammation and antioxidant status of the lung. Ovalbumin (OVA) in nitrated form (nOVA) was intraperitoneally (ip) injected in mice for sensitization and in nitrated or unmodified form for challenge to induce allergic bronchial inflammation. To study the allergen potential of unrelated protein and verify cross-reactivity, nitrated and unmodified keyhole limpet hemocyanin (nKLH, KLH) was used for challenge. Challenge with OVA or nOVA reduced lung function and increased eosinophilia and protein content in bronchoalveolar lavage fluid (BALF). Challenge with nitrated or native OVA or KLH elevated glutathione (GSH) ratio in type II pneumocytes. Reduced mRNA expression of glutathione peroxidase (GPX) 3, glutathione reductase (GR), superoxide dismutase (SOD) 2, and catalase (CAT) was most prominent after challenge with nitrated OVA and nitrated KLH, respectively. Challenge with nOVA enhanced SOD1 mRNA reduction. Immunostaining of GPX 3 and SOD2 increased after challenge with OVA or nOVA, while reactivity of GR and reactivity of SOD2 were reduced after challenge with KLH or nKLH. SOD1 immunostaining was diminished after challenge with nonnitrated OVA or KLH. CAT immunoreaction was similar in all groups. Nitrated proteins without allergenic potential triggered mRNA reduction of antioxidants in type II cells after sensitization with a nitrated allergen but did not induce bronchial inflammation.
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Affiliation(s)
- Renate Hochscheid
- a Laboratory of Respiratory Cell Biology, Department of Internal Medicine, Division of Pneumology , Philipps University , Marburg
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32
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Ma XJ, Gao JY, Chen HB. Combined effect of glycation and sodium carbonate-bicarbonate buffer concentration on IgG binding, IgE binding and conformation of ovalbumin. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2013; 93:3209-3215. [PMID: 23553593 DOI: 10.1002/jsfa.6157] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 03/05/2013] [Accepted: 04/02/2013] [Indexed: 06/02/2023]
Abstract
BACKGROUND Ovalbumin (OVA) is a major allergen in hen egg. During thermal processing, reducing sugars contained in the hen egg white might easily undergo glycation with OVA, but few studies have been conducted on its corresponding immunoreactivity changes. The aim of the present study was to assess changes of the antigenicity, potential allergenicity and conformation of OVA after glycation in a wet-thermal processing system under different concentrations of sodium carbonate-bicarbonate buffer. RESULTS IgE binding of the glycated OVA was increased after glycation, and the higher the sodium carbonate-bicarbonate buffer concentration, the higher the IgE binding capacity. The increase in IgE binding of OVA corresponded well with the disruption of the disulfide bond, which exposed the epitopes initially buried. Antigenicity of the glycated OVA was increased, and the amount of the increase varied among samples treated under different buffer concentrations. CONCLUSION Glycation increased the allergenic potential for OVA, with the amount of increase varying with different sodium carbonate-bicarbonate buffer concentrations.
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Affiliation(s)
- Xiao-juan Ma
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, 330047, China; Sino-German Joint Research Institute, Nanchang University, Nanchang, 330047, China
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33
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Dearman RJ, Beresford L, Foster ES, McClain S, Kimber I. Characterization of the allergenic potential of proteins: an assessment of the kiwifruit allergen actinidin. J Appl Toxicol 2013; 34:489-97. [PMID: 23754484 DOI: 10.1002/jat.2897] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2013] [Revised: 04/18/2013] [Accepted: 04/18/2013] [Indexed: 12/29/2022]
Abstract
Assessment of the potential allergenicity (IgE-inducing properties) of novel proteins is an important challenge in the overall safety assessment of foods. Resistance to digestion with pepsin is commonly measured to characterize allergenicity, although the association is not absolute. We have previously shown that specific IgE antibody production induced by systemic [intraperitoneal (i.p.)] exposure of BALB/c strain mice to a range of proteins correlates with allergenic potential for known allergens. The purpose of the present study was to explore further the utility of these approaches using the food allergen, actinidin. Recently, kiwifruit has become an important allergenic foodstuff, coincident with its increased consumption, particularly as a weaning food. The ability of the kiwifruit allergen actinidin to stimulate antibody responses has been compared with the reference allergen ovalbumin, and with the non-allergen bovine haemoglobin. Haemoglobin was rapidly digested by pepsin whereas actinidin was resistant unless subjected to prior chemical reduction (reflecting intracellular digestion conditions). Haemoglobin stimulated detectable IgG antibody production at relatively high doses (10%), but failed to provoke detectable IgE. In contrast, actinidin was both immunogenic and allergenic at relatively low doses (0.25% to 1%). Vigorous IgG and IgG1 antibody and high titre IgE antibody responses were recorded, similar to those provoked by ovalbumin. Thus, actinidin displays a marked ability to provoke IgE, consistent with allergenic potential. These data provide further encouragement that in tandem with analysis of pepsin stability, the induction of IgE after systemic exposure of BALB/c strain mice provides a useful approach for the prospective identification of protein allergens.
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Affiliation(s)
- Rebecca J Dearman
- Faculty of Life Sciences, The University of Manchester, Michael Smith Building, Oxford Road, Manchester, M13 9PT, UK
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34
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Stanic-Vucinic D, Stojadinovic M, Atanaskovic-Markovic M, Ognjenovic J, Grönlund H, van Hage M, Lantto R, Sancho AI, Velickovic TC. Structural changes and allergenic properties of β-lactoglobulin upon exposure to high-intensity ultrasound. Mol Nutr Food Res 2012; 56:1894-905. [DOI: 10.1002/mnfr.201200179] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2012] [Revised: 07/19/2012] [Accepted: 08/16/2012] [Indexed: 11/11/2022]
Affiliation(s)
- Dragana Stanic-Vucinic
- Faculty of Chemistry; Department of Biochemistry; University of Belgrade; Belgrade; Serbia
| | - Marija Stojadinovic
- Faculty of Chemistry; Department of Biochemistry; University of Belgrade; Belgrade; Serbia
| | | | - Jana Ognjenovic
- Faculty of Chemistry; Department of Biochemistry; University of Belgrade; Belgrade; Serbia
| | - Hans Grönlund
- Clinical Immunology and Allergy Unit; Department of Medicine; Karolinska Institute, Karolinska University Hospital; Stockholm; Sweden
| | - Marianne van Hage
- Clinical Immunology and Allergy Unit; Department of Medicine; Karolinska Institute, Karolinska University Hospital; Stockholm; Sweden
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35
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Shiraiwa M, Selzle K, Pöschl U. Hazardous components and health effects of atmospheric aerosol particles: reactive oxygen species, soot, polycyclic aromatic compounds and allergenic proteins. Free Radic Res 2012; 46:927-39. [DOI: 10.3109/10715762.2012.663084] [Citation(s) in RCA: 132] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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36
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A shorter and more specific oral sensitization-based experimental model of food allergy in mice. J Immunol Methods 2012; 381:41-9. [PMID: 22542400 DOI: 10.1016/j.jim.2012.04.007] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Revised: 04/13/2012] [Accepted: 04/13/2012] [Indexed: 12/16/2022]
Abstract
Cow's milk protein allergy (CMPA) is one of the most prevalent human food-borne allergies, particularly in children. Experimental animal models have become critical tools with which to perform research on new therapeutic approaches and on the molecular mechanisms involved. However, oral food allergen sensitization in mice requires several weeks and is usually associated with unspecific immune responses. To overcome these inconveniences, we have developed a new food allergy model that takes only two weeks while retaining the main characters of allergic response to food antigens. The new model is characterized by oral sensitization of weaned Balb/c mice with 5 doses of purified cow's milk protein (CMP) plus cholera toxin (CT) for only two weeks and posterior challenge with an intraperitoneal administration of the allergen at the end of the sensitization period. In parallel, we studied a conventional protocol that lasts for seven weeks, and also the non-specific effects exerted by CT in both protocols. The shorter protocol achieves a similar clinical score as the original food allergy model without macroscopically affecting gut morphology or physiology. Moreover, the shorter protocol caused an increased IL-4 production and a more selective antigen-specific IgG1 response. Finally, the extended CT administration during the sensitization period of the conventional protocol is responsible for the exacerbated immune response observed in that model. Therefore, the new model presented here allows a reduction not only in experimental time but also in the number of animals required per experiment while maintaining the features of conventional allergy models. We propose that the new protocol reported will contribute to advancing allergy research.
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37
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Karle AC, Oostingh GJ, Mutschlechner S, Ferreira F, Lackner P, Bohle B, Fischer GF, Vogt AB, Duschl A. Nitration of the pollen allergen bet v 1.0101 enhances the presentation of bet v 1-derived peptides by HLA-DR on human dendritic cells. PLoS One 2012; 7:e31483. [PMID: 22348091 PMCID: PMC3279363 DOI: 10.1371/journal.pone.0031483] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2011] [Accepted: 01/09/2012] [Indexed: 11/19/2022] Open
Abstract
Nitration of pollen derived allergens can occur by NO2 and ozone in polluted air and it has already been shown that nitrated major birch (Betula verrucosa) pollen allergen Bet v 1.0101 (Bet v 1) exhibits an increased potency to trigger an immune response. However, the mechanisms by which nitration might contribute to the induction of allergy are still unknown. In this study, we assessed the effect of chemically induced nitration of Bet v 1 on the generation of HLA-DR associated peptides. Human dendritic cells were loaded with unmodified Bet v 1 or nitrated Bet v 1, and the naturally processed HLA-DR associated peptides were subsequently identified by liquid chromatography-mass spectrometry. Nitration of Bet v 1 resulted in enhanced presentation of allergen-derived HLA-DR-associated peptides. Both the copy number of Bet v 1 derived peptides as well as the number of nested clusters was increased. Our study shows that nitration of Bet v 1 alters antigen processing and presentation via HLA-DR, by enhancing both the quality and the quantity of the Bet v 1-specific peptide repertoire. These findings indicate that air pollution can contribute to allergic diseases and might also shed light on the analogous events concerning the nitration of self-proteins.
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Affiliation(s)
- Anette C. Karle
- Immunosafety, Non-Clinical Drug Safety, F. Hoffmann-La Roche Ltd, Basel, Switzerland
| | - Gertie J. Oostingh
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Sonja Mutschlechner
- Christian Doppler Laboratory for Immunomodulation, Department of Pathophysiology, Center of Physiology, Pathophysiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Fatima Ferreira
- Christian Doppler Laboratory for Allergy Diagnosis and Therapy, Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Peter Lackner
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
| | - Barbara Bohle
- Christian Doppler Laboratory for Immunomodulation, Department of Pathophysiology, Center of Physiology, Pathophysiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Gottfried F. Fischer
- Clinical Department for Blood Group Serology, University Clinic for Blood Group Serology and Transfusion Medicine, Vienna, Austria
| | - Anne B. Vogt
- Immunosafety, Non-Clinical Drug Safety, F. Hoffmann-La Roche Ltd, Basel, Switzerland
- * E-mail:
| | - Albert Duschl
- Department of Molecular Biology, University of Salzburg, Salzburg, Austria
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