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Ferreira MM, Santos AS, Santos AS, Zugaib M, Pirovani CP. Plant Serpins: Potential Inhibitors of Serine and Cysteine Proteases with Multiple Functions. PLANTS (BASEL, SWITZERLAND) 2023; 12:3619. [PMID: 37896082 PMCID: PMC10609998 DOI: 10.3390/plants12203619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 06/23/2023] [Accepted: 06/26/2023] [Indexed: 10/29/2023]
Abstract
Plant serpins are a superfamily of protein inhibitors that have been continuously studied in different species and have great biotechnological potential. However, despite ongoing studies with these inhibitors, the biological role of this family in the plant kingdom has not yet been fully clarified. In order to obtain new insights into the potential of plant serpins, this study presents the first systematic review of the topic, whose main objective was to scrutinize the published literature to increase knowledge about this superfamily. Using keywords and the eligibility criteria defined in the protocol, we selected studies from the Scopus, PubMed, and Web of Science databases. According to the eligible studies, serpins inhibit different serine and non-serine proteases from plants, animals, and pathogens, and their expression is affected by biotic and abiotic stresses. Moreover, serpins like AtSerpin1, OSP-LRS, MtSer6, AtSRP4, AtSRP5, and MtPiI4, act in resistance and are involved in stress-induced cell death in the plant. Also, the system biology analysis demonstrates that serpins are related to proteolysis control, cell regulation, pollen development, catabolism, and protein dephosphorylation. The information systematized here contributes to the design of new studies of plant serpins, especially those aimed at exploring their biotechnological potential.
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Affiliation(s)
- Monaliza Macêdo Ferreira
- Center for Biotechnology and Genetics, Department of Biological Sciences, Santa Cruz State University, Ilhéus 45662-900, BA, Brazil; (A.S.S.); (M.Z.); (C.P.P.)
| | - Ariana Silva Santos
- Center for Biotechnology and Genetics, Department of Biological Sciences, Santa Cruz State University, Ilhéus 45662-900, BA, Brazil; (A.S.S.); (M.Z.); (C.P.P.)
| | | | - Maria Zugaib
- Center for Biotechnology and Genetics, Department of Biological Sciences, Santa Cruz State University, Ilhéus 45662-900, BA, Brazil; (A.S.S.); (M.Z.); (C.P.P.)
| | - Carlos Priminho Pirovani
- Center for Biotechnology and Genetics, Department of Biological Sciences, Santa Cruz State University, Ilhéus 45662-900, BA, Brazil; (A.S.S.); (M.Z.); (C.P.P.)
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2
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Afzal M, Sielaff M, Distler U, Schuppan D, Tenzer S, Longin CFH. Reference proteomes of five wheat species as starting point for future design of cultivars with lower allergenic potential. NPJ Sci Food 2023; 7:9. [PMID: 36966156 PMCID: PMC10039927 DOI: 10.1038/s41538-023-00188-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2022] [Accepted: 03/06/2023] [Indexed: 03/27/2023] Open
Abstract
Wheat is an important staple food and its processing quality is largely driven by proteins. However, there is a sizable number of people with inflammatory reactions to wheat proteins, namely celiac disease, wheat allergy and the syndrome of non-celiac wheat sensitivity. Thus, proteome profiles should be of high importance for stakeholders along the wheat supply chain. We applied liquid chromatography-tandem mass spectrometry-based proteomics to establish the flour reference proteome for five wheat species, ancient to modern, each based on 10 cultivars grown in three diverse environments. We identified at least 2540 proteins in each species and a cluster analyses clearly separated the species based on their proteome profiles. Even more, >50% of proteins significantly differed between species - many of them implicated in products' quality, grain-starch synthesis, plant stress regulation and proven or potential allergic reactions in humans. Notably, the expression of several important wheat proteins was found to be mainly driven by genetics vs. environmental factors, which enables selection and refinement of improved cultivars for the wheat supply chain as long as rapid test methods will be developed. Especially einkorn expressed 5.4 and 7.2-fold lower quantities of potential allergens and immunogenic amylase trypsin inhibitors, respectively, than common wheat, whereas potential allergen content was intermediate in tetraploid wheat species. This urgently warrants well-targeted clinical studies, where the developed reference proteomes will help to design representative test diets.
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Affiliation(s)
- Muhammad Afzal
- State Plant Breeding Institute, University of Hohenheim, Fruwirthstr. 21, 70599, Stuttgart, Germany
| | - Malte Sielaff
- Institute for Immunology and Research Center for Immune Therapy (FZI), University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Ute Distler
- Institute for Immunology and Research Center for Immune Therapy (FZI), University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Detlef Schuppan
- Institute of Translational Immunology and Research Center for Immune Therapy (FZI), University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA, 02215, USA
| | - Stefan Tenzer
- Institute for Immunology and Research Center for Immune Therapy (FZI), University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
| | - C Friedrich H Longin
- State Plant Breeding Institute, University of Hohenheim, Fruwirthstr. 21, 70599, Stuttgart, Germany.
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3
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Mameri H, Gaudin JC, Lollier V, Tranquet O, Brossard C, Pietri M, Marion D, Codreanu-Morel F, Beaudouin E, Wien F, Gohon Y, Briozzo P, Denery-Papini S. Critical structural elements for the antigenicity of wheat allergen LTP1 (Tri a 14) revealed by site-directed mutagenesis. Sci Rep 2022; 12:12253. [PMID: 35851276 PMCID: PMC9293932 DOI: 10.1038/s41598-022-15811-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 06/29/2022] [Indexed: 11/09/2022] Open
Abstract
Lipid transfer proteins (LTPs) were identified as allergens in a large variety of pollens and foods, including cereals. LTPs belong to the prolamin superfamily and display an α-helical fold, with a bundle of four α-helices held together by four disulfide bonds. Wheat LTP1 is involved in allergic reactions to food. To identify critical structural elements of antibody binding to wheat LTP1, we used site-directed mutagenesis on wheat recombinant LTP1 to target: (i) sequence conservation and/or structure flexibility or (ii) each disulfide bond. We evaluated the modifications induced by these mutations on LTP1 secondary structure by synchrotron radiation circular dichroism and on its antigenicity with patient's sera and with mouse monoclonal antibodies. Disruption of the C28-C73 disulfide bond significantly affected IgE-binding and caused protein denaturation, while removing C13-C27 bond decreased LTP1 antigenicity and slightly modified LTP1 overall folding. In addition, we showed Lys72 to be a key residue; the K72A mutation did not affect global folding but modified the local 3D structure of LTP1 and strongly reduced IgE-binding. This work revealed a cluster of residues (C13, C27, C28, C73 and K72), four of which embedded in disulfide bonds, which play a critical role in LTP1 antigenicity.
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Affiliation(s)
- Hamza Mameri
- INRAE, UR 1268 Biopolymères Interactions Assemblages (BIA), 44316, Nantes, France. .,UMR 1208 IATE, Univ Montpellier, INRAE, L'Institut-Agro Montpellier, 34060, Montpellier, France.
| | - Jean-Charles Gaudin
- INRAE, UR 1268 Biopolymères Interactions Assemblages (BIA), 44316, Nantes, France.,INRAE, UMR 0588 Biologie intégrée pour la valorisation de la diversité des arbres et de la forêt (BIOFORA), 45075, Orléans, France
| | - Virginie Lollier
- INRAE, UR 1268 Biopolymères Interactions Assemblages (BIA), 44316, Nantes, France.,INRAE, UR BIA, 44316, Nantes, France.,INRAE, PROBE Research Infrastructure, BIBS Facility, 44316, Nantes, France
| | - Olivier Tranquet
- INRAE, UR 1268 Biopolymères Interactions Assemblages (BIA), 44316, Nantes, France.,INRAE UMR 1163 Biodiversité et Biotechnologie Fongiques (BBF), 13288, Marseille, France
| | - Chantal Brossard
- INRAE, UR 1268 Biopolymères Interactions Assemblages (BIA), 44316, Nantes, France
| | - Manon Pietri
- INRAE, UR 1268 Biopolymères Interactions Assemblages (BIA), 44316, Nantes, France.,Institut de Cancérologie de l'Ouest, Centre René Gauducheau, 44805, Saint Herblain Cedex, France
| | - Didier Marion
- INRAE, UR 1268 Biopolymères Interactions Assemblages (BIA), 44316, Nantes, France
| | - Fanny Codreanu-Morel
- CHU Luxembourg, Centre Hospitalier de Luxembourg, Kanner Klinik, 1210, Luxembourg, Luxembourg
| | - Etienne Beaudouin
- Service d'Allergologie, Hôpital de Mercy, CHR Metz, 57000, Metz, France
| | - Frank Wien
- Synchrotron Soleil, Saint-Aubin, 91192, Gif-sur-Yvette, France
| | - Yann Gohon
- INRAE, UMR 1318 Institut Jean-Pierre Bourgin, 78026, Versailles, France
| | - Pierre Briozzo
- INRAE, UMR 1318 Institut Jean-Pierre Bourgin, 78026, Versailles, France
| | - Sandra Denery-Papini
- INRAE, UR 1268 Biopolymères Interactions Assemblages (BIA), 44316, Nantes, France.
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4
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Afzal M, Sielaff M, Curella V, Neerukonda M, El Hassouni K, Schuppan D, Tenzer S, Longin CFH. Characterization of 150 Wheat Cultivars by LC-MS-Based Label-Free Quantitative Proteomics Unravels Possibilities to Design Wheat Better for Baking Quality and Human Health. PLANTS (BASEL, SWITZERLAND) 2021; 10:424. [PMID: 33668233 PMCID: PMC7996164 DOI: 10.3390/plants10030424] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 02/06/2023]
Abstract
Wheat (Triticum aestivum ssp. aestivum) contributes to 20% of the human protein supply, delivers essential amino acids and is of fundamental importance for bread and pasta quality. Wheat proteins are also involved in adverse human reactions like celiac disease (CD), wheat allergy (WA) and non-celiac wheat sensitivity (NCWS). Using liquid chromatography-mass spectrometry (LC-MS)-based label-free quantitative (LFQ) proteomics of aqueous flour extracts, we determined 756 proteins across 150 wheat cultivars grown in three environments. However, only 303 proteins were stably expressed across all environments in at least one cultivar and only 89 proteins thereof across all 150 cultivars. This underlines the large influence of environmental conditions on the expression of many proteins. Wheat cultivars varied largely in their protein profile, shown by high coefficients of variation across different cultivars. Heritability (h2) ranged from 0-1, with 114 proteins having h² > 0.6, including important proteins for baking quality and human health. The expression of these 114 proteins should be amenable to targeted manipulation across the wheat supply chain by varietal choice and breeding for designing healthier wheat with better quality. Further technical development is urgently required to assign functions to identifiable proteins labeled yet uncharacterized in databases and speeding up detection methods to routinely use proteomics in wheat supply chains.
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Affiliation(s)
- Muhammad Afzal
- State Plant Breeding Institute, University of Hohenheim, Fruwirthstr. 21, 70599 Stuttgart, Germany; (M.A.); (K.E.H.)
| | - Malte Sielaff
- Institute for Immunology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131 Mainz, Germany; (M.S.); (S.T.)
| | - Valentina Curella
- Institute of Translational Immunology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131 Mainz, Germany; (V.C.); (M.N.); (D.S.)
| | - Manjusha Neerukonda
- Institute of Translational Immunology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131 Mainz, Germany; (V.C.); (M.N.); (D.S.)
| | - Khaoula El Hassouni
- State Plant Breeding Institute, University of Hohenheim, Fruwirthstr. 21, 70599 Stuttgart, Germany; (M.A.); (K.E.H.)
| | - Detlef Schuppan
- Institute of Translational Immunology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131 Mainz, Germany; (V.C.); (M.N.); (D.S.)
- Division of Gastroenterology, Beth Israel Deaconess Medical Center, Harvard Medical School, 330 Brookline Avenue, Boston, MA 02215, USA
| | - Stefan Tenzer
- Institute for Immunology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131 Mainz, Germany; (M.S.); (S.T.)
| | - C. Friedrich H. Longin
- State Plant Breeding Institute, University of Hohenheim, Fruwirthstr. 21, 70599 Stuttgart, Germany; (M.A.); (K.E.H.)
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5
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Afzal M, Pfannstiel J, Zimmermann J, Bischoff SC, Würschum T, Longin CFH. High-resolution proteomics reveals differences in the proteome of spelt and bread wheat flour representing targets for research on wheat sensitivities. Sci Rep 2020; 10:14677. [PMID: 32895444 PMCID: PMC7477207 DOI: 10.1038/s41598-020-71712-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 08/18/2020] [Indexed: 12/21/2022] Open
Abstract
Wheat consumption can trigger celiac disease, allergic reactions and non-celiac wheat sensitivity (NCWS) in humans. Some people with NCWS symptoms claim a better tolerability of spelt compared to bread wheat products. We therefore investigated potential differences in the proteomes of spelt and bread wheat flour using nano LC-ESI-MS/MS on a set of 15 representative varieties for each of the two species. Based on the bread wheat reference, we detected 3,050 proteins in total and for most of them the expression was mainly affected by the environment. By contrast, 274 and 409 proteins in spelt and bread wheat, respectively, had a heritability ≥ 0.4 highlighting the potential to influence their expression level by varietal choice. We found 84 and 193 unique proteins for spelt and bread wheat, respectively, and 396 joint proteins, which expression differed significantly (p ≤ 0.05) when comparing both species. Thus, about one third of proteins differed significantly between spelt and bread wheat. Of them, we identified 81 proteins with high heritability, which therefore might be interesting candidates for future research on wheat hypersensitivities.
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Affiliation(s)
- Muhammad Afzal
- State Plant Breeding Institute, University of Hohenheim, Fruwirthstrasse 21, 70599, Stuttgart, Germany
| | - Jens Pfannstiel
- Core Facility Hohenheim, University of Hohenheim, August-von-Hartmann-Strasse 3, 70599, Stuttgart, Germany
| | - Julia Zimmermann
- Institute of Nutritional Medicine, University of Hohenheim, Fruwirthstrasse 12, 70599, Stuttgart, Germany
| | - Stephan C Bischoff
- Institute of Nutritional Medicine, University of Hohenheim, Fruwirthstrasse 12, 70599, Stuttgart, Germany
| | - Tobias Würschum
- Institute of Plant Breeding, Seed Science and Population Genetics, University of Hohenheim, Fruwirthstrasse 21, 70599, Stuttgart, Germany
| | - C Friedrich H Longin
- State Plant Breeding Institute, University of Hohenheim, Fruwirthstrasse 21, 70599, Stuttgart, Germany.
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6
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Lakhneko O, Danchenko M, Morgun B, Kováč A, Majerová P, Škultéty Ľ. Comprehensive Comparison of Clinically Relevant Grain Proteins in Modern and Traditional Bread Wheat Cultivars. Int J Mol Sci 2020; 21:E3445. [PMID: 32414116 PMCID: PMC7279209 DOI: 10.3390/ijms21103445] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2020] [Revised: 05/10/2020] [Accepted: 05/11/2020] [Indexed: 12/17/2022] Open
Abstract
Bread wheat (Triticum aestivum L.) is one of the most valuable cereal crops for human consumption. Its grain storage proteins define bread quality, though they may cause food intolerances or allergies in susceptible individuals. Herein, we discovered a diversity of grain proteins in three Ukrainian wheat cultivars: Sotnytsia, Panna (both modern selection), and Ukrainka (landrace). Firstly, proteins were isolated with a detergent-containing buffer that allowed extraction of various groups of storage proteins (glutenins, gliadins, globulins, and albumins); secondly, the proteome was profiled by the two-dimensional gel electrophoresis. Using multi-enzymatic digestion, we identified 49 differentially accumulated proteins. Parallel ultrahigh-performance liquid chromatography separation followed by direct mass spectrometry quantification complemented the results. Principal component analysis confirmed that differences among genotypes were a major source of variation. Non-gluten fraction better discriminated bread wheat cultivars. Various accumulation of clinically relevant plant proteins highlighted one of the modern genotypes as a promising donor for the breeding of hypoallergenic cereals.
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Affiliation(s)
- Olha Lakhneko
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska 9, 84505 Bratislava, Slovak Republic; (O.L.); (Ľ.Š.)
- Institute of Cell Biology and Genetic Engineering, National Academy of Sciences of Ukraine, Akademika Zabolotnoho 148, 03143 Kyiv, Ukraine;
| | - Maksym Danchenko
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska 9, 84505 Bratislava, Slovak Republic; (O.L.); (Ľ.Š.)
- Institute of Plant Genetics and Biotechnology, Plant Science and Biodiversity Center, Slovak Academy of Sciences, Akademicka 2, 95007 Nitra, Slovak Republic
| | - Bogdan Morgun
- Institute of Cell Biology and Genetic Engineering, National Academy of Sciences of Ukraine, Akademika Zabolotnoho 148, 03143 Kyiv, Ukraine;
| | - Andrej Kováč
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska 9, 84510 Bratislava, Slovak Republic; (A.K.); (P.M.)
| | - Petra Majerová
- Institute of Neuroimmunology, Slovak Academy of Sciences, Dubravska 9, 84510 Bratislava, Slovak Republic; (A.K.); (P.M.)
| | - Ľudovit Škultéty
- Institute of Virology, Biomedical Research Center, Slovak Academy of Sciences, Dubravska 9, 84505 Bratislava, Slovak Republic; (O.L.); (Ľ.Š.)
- Institute of Microbiology, Czech Academy of Sciences, Videnska 1083, 14220 Prague, Czech Republic
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7
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Affiliation(s)
- Louise Manning
- Department of Food Science and Agri-Food Supply Chain Management, Harper Adams University, Newport, Shropshire, United Kingdom
| | - Jan Mei Soon
- International Institute of Nutritional Sciences and Applied Food Safety Studies, School of Sport and Wellbeing, University of Central Lancashire, Preston, United Kingdom
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8
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Quirce S, Boyano-Martínez T, Díaz-Perales A. Clinical presentation, allergens, and management of wheat allergy. Expert Rev Clin Immunol 2016; 12:563-72. [PMID: 26800201 DOI: 10.1586/1744666x.2016.1145548] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
IgE-mediated allergy to wheat proteins can be caused by exposure through ingestion, inhalation, or skin/mucosal contact, and can affect various populations and age groups. Respiratory allergy to wheat proteins is commonly observed in adult patients occupationally exposed to flour, whereas wheat food allergy is more common in children. Wheat allergy is of growing importance for patients with recurrent anaphylaxis, especially when exercise related. The diagnosis of wheat allergy relies on a consistent clinical history, skin prick testing with well-characterized extracts and specific IgE tests. The accuracy of wheat allergy diagnosis may be improved by measuring IgE responses to several wheat components. However, a high degree of heterogeneity has been found in the recognition pattern of allergens among patient groups with different clinical profiles, as well as within each group. Thus, oral provocation with wheat or the implicated cereal is the reference test for the definitive diagnosis of ingested wheat/cereal allergy.
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Affiliation(s)
- Santiago Quirce
- a Department of Allergy , Hospital La Paz Institute for Health Research (IdiPAZ) , Madrid , Spain.,b CIBER of Respiratory Diseases CIBERES , Madrid , Spain
| | - Teresa Boyano-Martínez
- a Department of Allergy , Hospital La Paz Institute for Health Research (IdiPAZ) , Madrid , Spain
| | - Araceli Díaz-Perales
- c Centro de Biotecnología y Genómica de Plantas (UPM-INIA) , Pozuelo de Alarcón , Madrid , Spain
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9
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Rogniaux H, Pavlovic M, Lupi R, Lollier V, Joint M, Mameri H, Denery S, Larré C. Allergen relative abundance in several wheat varieties as revealed via a targeted quantitative approach using MS. Proteomics 2016; 15:1736-45. [PMID: 25764008 DOI: 10.1002/pmic.201400416] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2014] [Revised: 02/13/2015] [Accepted: 03/02/2015] [Indexed: 12/18/2022]
Abstract
Food allergy has become a major health issue in developed countries, therefore there is an urgent need to develop analytical methods able to detect and quantify with a good sensitivity and reliability some specific allergens in complex food matrices. In this paper, we present a targeted MS/MS approach to compare the relative abundance of the major recognized wheat allergens in the salt-soluble (albumin/globulin) fraction of wheat grains. Twelve allergens were quantified in seven wheat varieties, selected from three Triticum species: T. aestivum (bread wheat), T. durum (durum wheat), and T. monococcum. The allergens were monitored from one or two proteotypic peptides and their relative abundance was deduced from the intensity of one fragment measured in MS/MS. Whereas the abundance of some of the targeted allergens was quite stable across the genotypes, others like alpha-amylase inhibitors showed clear differences according to the wheat species, in accordance with the results of earlier functional studies. This study enriches the scarce knowledge available on allergens content in wheat genotypes, and brings new perspectives for food safety and plant breeding.
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Affiliation(s)
- Hélène Rogniaux
- INRA UR1268 Biopolymers Interactions Assemblies, Nantes, France
| | - Marija Pavlovic
- INRA UR1268 Biopolymers Interactions Assemblies, Nantes, France
| | - Roberta Lupi
- INRA UR1268 Biopolymers Interactions Assemblies, Nantes, France
| | | | - Mathilde Joint
- INRA UR1268 Biopolymers Interactions Assemblies, Nantes, France
| | - Hamza Mameri
- INRA UR1268 Biopolymers Interactions Assemblies, Nantes, France
| | - Sandra Denery
- INRA UR1268 Biopolymers Interactions Assemblies, Nantes, France
| | - Colette Larré
- INRA UR1268 Biopolymers Interactions Assemblies, Nantes, France
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10
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Altenbach SB, Tanaka CK, Pineau F, Lupi R, Drouet M, Beaudouin E, Morisset M, Denery-Papini S. Assessment of the Allergenic Potential of Transgenic Wheat (Triticum aestivum) with Reduced Levels of ω5-Gliadins, the Major Sensitizing Allergen in Wheat-Dependent Exercise-Induced Anaphylaxis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:9323-32. [PMID: 26447559 DOI: 10.1021/acs.jafc.5b03557] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The ω5-gliadins are the major sensitizing allergens in wheat-dependent exercise-induced anaphylaxis (WDEIA). In this study, two-dimensional immunoblot analysis was used to assess the allergenic potential of two transgenic wheat lines in which ω5-gliadin genes were silenced by RNA interference. Sera from 7 of 11 WDEIA patients showed greatly reduced levels of immunoglobulin E (IgE) reactivity to ω5-gliadins in both transgenic lines. However, these sera also showed low levels of reactivity to other gluten proteins. Sera from three patients showed the greatest reactivity to proteins other than ω5-gliadins, either high-molecular-weight glutenin subunits (HMW-GSs), α-gliadins, or non-gluten proteins. The complexity of immunological responses among these patients suggests that flour from the transgenic lines would not be suitable for individuals already diagnosed with WDEIA. However, the introduction of wheat lacking ω5-gliadins could reduce the number of people sensitized to these proteins and thereby decrease the overall incidence of this serious food allergy.
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Affiliation(s)
- Susan B Altenbach
- Western Regional Research Center, Agricultural Research Services (ARS), United States Department of Agriculture (USDA) , 800 Buchanan Street Albany, California 94710, United States
| | - Charlene K Tanaka
- Western Regional Research Center, Agricultural Research Services (ARS), United States Department of Agriculture (USDA) , 800 Buchanan Street Albany, California 94710, United States
| | - Florence Pineau
- UR1268 Biopolymers, Interactions, Assemblies, Institut National de la Recherche Agronomique (INRA) , Rue de la Géraudière, F-44316 Nantes Cedex 03, France
| | - Roberta Lupi
- UR1268 Biopolymers, Interactions, Assemblies, Institut National de la Recherche Agronomique (INRA) , Rue de la Géraudière, F-44316 Nantes Cedex 03, France
| | - Martine Drouet
- Unité d'Allergologie Générale et de Pneumologie, Centre Hospitalier Universitaire (CHU) d'Angers , F-49933 Angers, France
| | - Etienne Beaudouin
- Service d'Allergologie, Centre Hospitalier (CH) Epinal , F-88021 Epinal, France
| | - Martine Morisset
- Immunologie-Allergologie, Centre Hospitalier (CH) de Luxembourg , L-1210 Luxembourg, Luxembourg
| | - Sandra Denery-Papini
- UR1268 Biopolymers, Interactions, Assemblies, Institut National de la Recherche Agronomique (INRA) , Rue de la Géraudière, F-44316 Nantes Cedex 03, France
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11
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Matsuo H, Yokooji T, Taogoshi T. Common food allergens and their IgE-binding epitopes. Allergol Int 2015; 64:332-43. [PMID: 26433529 DOI: 10.1016/j.alit.2015.06.009] [Citation(s) in RCA: 142] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 06/18/2015] [Accepted: 06/23/2015] [Indexed: 12/26/2022] Open
Abstract
Food allergy is an adverse immune response to certain kinds of food. Although any food can cause allergic reactions, chicken egg, cow's milk, wheat, shellfish, fruit, and buckwheat account for 75% of food allergies in Japan. Allergen-specific immunoglobulin E (IgE) antibodies play a pivotal role in the development of food allergy. Recent advances in molecular biological techniques have enabled the efficient analysis of food allergens. As a result, many food allergens have been identified, and their molecular structure and IgE-binding epitopes have also been identified. Studies of allergens have demonstrated that IgE antibodies specific to allergen components and/or the peptide epitopes are good indicators for the identification of patients with food allergy, prediction of clinical severity and development of tolerance. In this review, we summarize our current knowledge regarding the allergens and IgE epitopes in the well-researched allergies to chicken egg, cow's milk, wheat, shrimp, and peanut.
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Affiliation(s)
- Hiroaki Matsuo
- Department of Pharmaceutical Services, Hiroshima University Hospital, Hiroshima, Japan.
| | - Tomoharu Yokooji
- Department of Pathophysiology and Therapeutics, Institute of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Takanori Taogoshi
- Department of Pharmaceutical Services, Hiroshima University Hospital, Hiroshima, Japan
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Mameri H, Brossard C, Gaudin JC, Gohon Y, Paty E, Beaudouin E, Moneret-Vautrin DA, Drouet M, Solé V, Wien F, Lupi R, Larré C, Snégaroff J, Denery-Papini S. Structural Basis of IgE Binding to α- and γ-Gliadins: Contribution of Disulfide Bonds and Repetitive and Nonrepetitive Domains. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:6546-6554. [PMID: 26186140 DOI: 10.1021/acs.jafc.5b01922] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Wheat products cause IgE-mediated allergies. The present study aimed to decipher the molecular basis of α- and γ-gliadin allergenicity. Gliadins and their domains, the repetitive N-terminal and the nonrepetitive C-terminal domains, were cloned and expressed in Escherichia coli. Their secondary structures and their IgE binding capacity were compared with those of natural proteins before and after reduction/alkylation. Allergenicity was evaluated with sera from patients who had a wheat food allergy or baker's asthma. The secondary structures of natural and recombinant proteins were slightly different. Compared with natural gliadins, recombinant proteins retained IgE binding but with reduced reactivity. Reduction/alkylation decreased IgE binding for both natural and recombinant gliadins. Although more continuous epitopes were identified in the N-terminal domains of α- and γ-gliadins, both the N-terminal and C-terminal domains contributed to IgE binding. As for other members of the prolamin superfamily, disulfide bonds appear to be of high importance for IgE binding.
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Affiliation(s)
- Hamza Mameri
- †INRA, UR1268 BIA (Biopolymers, Interactions, Assemblies), F-44316 Nantes, France
- ‡INRA, UMR1318, Institut Jean-Pierre Bourgin, INRA-AgroParisTech, F-78026 Versailles, France
| | - Chantal Brossard
- †INRA, UR1268 BIA (Biopolymers, Interactions, Assemblies), F-44316 Nantes, France
| | - Jean-Charles Gaudin
- †INRA, UR1268 BIA (Biopolymers, Interactions, Assemblies), F-44316 Nantes, France
| | - Yann Gohon
- ‡INRA, UMR1318, Institut Jean-Pierre Bourgin, INRA-AgroParisTech, F-78026 Versailles, France
| | - Evelyne Paty
- §Service de Pneumologie et d'Allergologie Pédiatrique, Groupe hospitalier Necker, F-75015 Paris, France
| | | | | | - Martine Drouet
- ⊥Unité d'Allergologie Générale et de Pneumologie, CHU d'Angers, F-49933 Angers, France
| | - Véronique Solé
- †INRA, UR1268 BIA (Biopolymers, Interactions, Assemblies), F-44316 Nantes, France
| | - Frank Wien
- #Synchrotron Soleil, Saint-Aubin, F-91192 Gif-sur-Yvette, France
| | - Roberta Lupi
- †INRA, UR1268 BIA (Biopolymers, Interactions, Assemblies), F-44316 Nantes, France
| | - Colette Larré
- †INRA, UR1268 BIA (Biopolymers, Interactions, Assemblies), F-44316 Nantes, France
| | - Jacques Snégaroff
- ‡INRA, UMR1318, Institut Jean-Pierre Bourgin, INRA-AgroParisTech, F-78026 Versailles, France
| | - Sandra Denery-Papini
- †INRA, UR1268 BIA (Biopolymers, Interactions, Assemblies), F-44316 Nantes, France
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Fekecsová S, Danchenko M, Uvackova L, Skultety L, Hajduch M. Using 7 cm immobilized pH gradient strips to determine levels of clinically relevant proteins in wheat grain extracts. FRONTIERS IN PLANT SCIENCE 2015; 6:433. [PMID: 26124766 PMCID: PMC4464201 DOI: 10.3389/fpls.2015.00433] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/26/2015] [Accepted: 05/27/2015] [Indexed: 06/02/2023]
Abstract
The aim of the work was to test a relatively simple proteomics approach based on phenol extraction and two-dimensional gel electrophoresis (2-DE) with 7 cm immobilized pH gradient strips for the determination of clinically relevant proteins in wheat grain. Using this approach, 157 2-DE spots were quantified in biological triplicate, out of which 55 were identified by matrix-assisted laser desorption/ionization - time of flight tandem mass spectrometry. Clinically relevant proteins associated with celiac disease, wheat dependent exercise induced anaphylaxis, baker's asthma, and food allergy, were detected in 24 2-DE spots. However, alcohol-soluble gliadins were not detected with this approach. The comparison with a recent quantitative study suggested that gel-based and gel-free proteomics approaches are complementary for the detection and quantification of clinically relevant proteins in wheat grain.
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Affiliation(s)
- Sona Fekecsová
- Department of Developmental and Reproduction Biology, Institute of Plant Genetics and Biotechnology, Slovak Academy of SciencesNitra, Slovakia
- Faculty of Natural Sciences, Comenius UniversityBratislava, Slovakia
| | - Maksym Danchenko
- Institute of Virology, Slovak Academy of SciencesBratislava, Slovakia
| | - Lubica Uvackova
- Department of Developmental and Reproduction Biology, Institute of Plant Genetics and Biotechnology, Slovak Academy of SciencesNitra, Slovakia
| | - Ludovit Skultety
- Institute of Virology, Slovak Academy of SciencesBratislava, Slovakia
| | - Martin Hajduch
- Department of Developmental and Reproduction Biology, Institute of Plant Genetics and Biotechnology, Slovak Academy of SciencesNitra, Slovakia
- Institute of Virology, Slovak Academy of SciencesBratislava, Slovakia
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Mulenga A, Kim T, Ibelli AMG. Amblyomma americanum tick saliva serine protease inhibitor 6 is a cross-class inhibitor of serine proteases and papain-like cysteine proteases that delays plasma clotting and inhibits platelet aggregation. INSECT MOLECULAR BIOLOGY 2013; 22:306-19. [PMID: 23521000 PMCID: PMC4058330 DOI: 10.1111/imb.12024] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
We previously demonstrated that Amblyomma americanum tick serine protease inhibitor 6 (AamS6) was secreted into the host during tick feeding and that both its mRNA and protein were ubiquitously and highly expressed during the first 3 days of tick feeding. This study demonstrates that AamS6 is a cross-class inhibitor of both serine- and papain-like cysteine proteases that has apparent antihaemostatic functions. Consistent with the typical inhibitory serpin characteristics, enzyme kinetics analyses revealed that Pichia pastoris-expressed recombinant (r) AamS6 reduced initial velocities of substrate hydrolysis (V₀) and/or maximum enzyme velocity (V(max)) of trypsin, chymotrypsin, elastase, chymase, and papain in a dose-response manner. We speculate that rAamS6 inhibited plasmin in a temporary fashion in that while rAamS6 reduced V₀ of plasmin by up to ∼53%, it had no effect on V(max). Our data also suggest that rAmS6 has minimal or no apparent effect on V₀ or V(max) of thrombin, factor Xa, and kallikrein. We speculate that AamS6 is apparently involved in facilitating blood meal feeding in that various amounts of rAamS6 reduced platelet aggregation by up to ∼47% and delayed plasma clotting time in the recalcification time assay by up to ∼210 s. AamS6 is most likely not involved with the tick's evasion of the host's complement defense mechanism, in that rAamS6 did not interfere with the complement activation pathway. Findings in this study are discussed in the context of expanding our understanding of tick proteins that control bloodmeal feeding and hence tick-borne disease transmission by ticks.
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Affiliation(s)
- A Mulenga
- Department of Entomology, Texas A & M University AgriLife Research, College Station, TX, USA.
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How much does transgenesis affect wheat allergenicity?: Assessment in two GM lines over-expressing endogenous genes. J Proteomics 2013; 80:281-91. [PMID: 23403254 DOI: 10.1016/j.jprot.2013.01.028] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 01/25/2013] [Accepted: 01/30/2013] [Indexed: 11/23/2022]
Abstract
UNLABELLED Wheat kernel albumins/globulins (A/G) and gluten proteins are responsible for baker's asthma and food allergy in atopic subjects. Although no commercial genetically modified wheats are currently being grown, they are under study and the allergenicity of GM products is a major concern. In order to establish the expected and unexpected effects of genetic transformation on allergenicity and also to carry out a safety assessment of genetic transformation, two GM wheat lines (bread and pasta wheat) transformed with endogenous genes were compared to their untransformed counterparts (wt), first by an allergenomic approach, and second, using ELISA with sera from patients suffering from food allergy to wheat and baker's asthma. The 2D immunoblots performed on sera from patients suffering from food allergy and baker's asthma on the A/G fraction of the four lines (two GM and two wt) revealed comparable IgE-binding profiles. A total of 109 IgE-binding spots were analyzed by mass spectrometry, and most of the proteins identified had already been described as allergens or potential allergens. Only two IgE-binding proteins were specific to one GM line. The concentration of specific IgE against the A/G fractions of GM wheat lines and their wt genotypes differed for some sera. BIOLOGICAL SIGNIFICANCE The originality of our paper is to relate the transformation of wheat lines with their potential allergenicity using patient sera, such focus has never been done before in wheat and should be of interest to the researches working in this field. Another interesting point of this paper is the study of two types of allergies (respiratory and food) on two wheat genotypes and their GM which reveals that some allergens already known in respiratory allergy could be involved in children suffering from wheat food allergy. In this paper we used a classical 2D proteomic analysis and the protein identifications were performed by mass spectrometry after spot picking and in gel trypsin hydrolysis. Concerning the LC-MS/MS analyses classical software and parameters were used as described in Material and methods. We worked on wheat which is actually not fully sequenced that was a difficulty; we therefore searched against two databanks (proteins and ESTs) in order to compare the results. Moreover all proteins reported in our paper were identified with at least three unique peptides. The identified proteins were checked for their potential allergenicity. In order to have a best interpretation of protein identified in terms of potential allergens, BLAST alignments were performed by using an allergen databank (SDAP). This allows the determination of the cross-reactivity of these identified proteins with known allergens of other species and also the prediction of a potential allergenicity.
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