1
|
Chedik L, Baybekov S, Marcou G, Cosnier F, Mourot-Bousquenaud M, Jacquenet S, Varnek A, Battais F. Benchmarking of BMDC assay and related QSAR study for identifying sensitizing chemicals. Regul Toxicol Pharmacol 2024; 149:105623. [PMID: 38631606 DOI: 10.1016/j.yrtph.2024.105623] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2023] [Revised: 03/18/2024] [Accepted: 04/05/2024] [Indexed: 04/19/2024]
Abstract
The Bone-Marrow derived Dendritic Cell (BMDC) test is a promising assay for identifying sensitizing chemicals based on the 3Rs (Replace, Reduce, Refine) principle. This study expanded the BMDC benchmarking to various in vitro, in chemico, and in silico assays targeting different key events (KE) in the skin sensitization pathway, using common substances datasets. Additionally, a Quantitative Structure-Activity Relationship (QSAR) model was developed to predict the BMDC test outcomes for sensitizing or non-sensitizing chemicals. The modeling workflow involved ISIDA (In Silico Design and Data Analysis) molecular fragment descriptors and the SVM (Support Vector Machine) machine-learning method. The BMDC model's performance was at least comparable to that of all ECVAM-validated models regardless of the KE considered. Compared with other tests targeting KE3, related to dendritic cell activation, BMDC assay was shown to have higher balanced accuracy and sensitivity concerning both the Local Lymph Node Assay (LLNA) and human labels, providing additional evidence for its reliability. The consensus QSAR model exhibits promising results, correlating well with observed sensitization potential. Integrated into a publicly available web service, the BMDC-based QSAR model may serve as a cost-effective and rapid alternative to lab experiments, providing preliminary screening for sensitization potential, compound prioritization, optimization and risk assessment.
Collapse
Affiliation(s)
- Lisa Chedik
- Institut National de Recherche et de Sécurité Pour la Prévention des Accidents du Travail et des Maladies Professionnelles (INRS), Dept Toxicologie et Biométrologie, 1 Rue du Morvan, 54519, Vandoeuvre-lès-Nancy, France.
| | - Shamkhal Baybekov
- Laboratory of Chemoinformatics, UMR 7140 CNRS, University of Strasbourg, Strasbourg, France
| | - Gilles Marcou
- Laboratory of Chemoinformatics, UMR 7140 CNRS, University of Strasbourg, Strasbourg, France
| | - Frédéric Cosnier
- Institut National de Recherche et de Sécurité Pour la Prévention des Accidents du Travail et des Maladies Professionnelles (INRS), Dept Toxicologie et Biométrologie, 1 Rue du Morvan, 54519, Vandoeuvre-lès-Nancy, France
| | - Mélanie Mourot-Bousquenaud
- Institut National de Recherche et de Sécurité Pour la Prévention des Accidents du Travail et des Maladies Professionnelles (INRS), Dept Toxicologie et Biométrologie, 1 Rue du Morvan, 54519, Vandoeuvre-lès-Nancy, France
| | - Sandrine Jacquenet
- Institut National de Recherche et de Sécurité Pour la Prévention des Accidents du Travail et des Maladies Professionnelles (INRS), Dept Toxicologie et Biométrologie, 1 Rue du Morvan, 54519, Vandoeuvre-lès-Nancy, France
| | - Alexandre Varnek
- Laboratory of Chemoinformatics, UMR 7140 CNRS, University of Strasbourg, Strasbourg, France
| | - Fabrice Battais
- Institut National de Recherche et de Sécurité Pour la Prévention des Accidents du Travail et des Maladies Professionnelles (INRS), Dept Toxicologie et Biométrologie, 1 Rue du Morvan, 54519, Vandoeuvre-lès-Nancy, France
| |
Collapse
|
2
|
Battais F, Langonné I, Muller S, Mathiot J, Coiscaud A, Audry A, Remy AM, Sponne I, Mourot-Bousquenaud M. The BMDC model, a performant cell-based test to assess the sensitizing potential and potency of chemicals including pre/pro-haptens. Contact Dermatitis 2024; 90:211-234. [PMID: 37852624 DOI: 10.1111/cod.14439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 09/07/2023] [Accepted: 10/01/2023] [Indexed: 10/20/2023]
Abstract
BACKGROUND Chemical-induced allergies at workplace represent a significant occupational health issue. These substances must be properly identified as sensitizers. In previous studies, an original model using mouse bone marrow-derived dendritic cells (BMDC) was developed for this purpose. OBJECTIVES The aim of this study was to evaluate the predictive capacity of the BMDC model with a large panel of sensitizers (including pre- and pro-haptens) and non-sensitizers. METHODS The readout from the BMDC model is based on expression levels of six phenotypic markers measured by flow cytometry. RESULTS The results indicate that 29 of the 37 non-sensitizers, and 81 of the 86 sensitizers were correctly classified compared to the Local Lymph Node Assay (LLNA). Statistical analysis revealed the BMDC model to have a sensitivity of 94%, a specificity of 78%, and an accuracy of 89%. The EC2 (Effective Concentration) values calculated with this model allow sensitizers to be categorized into four classes: extreme, strong, moderate and weak. CONCLUSIONS These excellent predictive performances show that the BMDC model discriminates between sensitizers and non-sensitizers with outstanding precision equal to or better than existing validated alternative models. Moreover, this model allows to predict sensitization potency of chemicals. The BMDC test could therefore be proposed as an additional tool to assess the sensitizing potential and potency of chemicals.
Collapse
Affiliation(s)
- Fabrice Battais
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| | - Isabelle Langonné
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| | - Samuel Muller
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| | - Julianne Mathiot
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| | - Amélie Coiscaud
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| | - Adrien Audry
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| | - Aurélie Martin Remy
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| | - Isabelle Sponne
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| | - Mélanie Mourot-Bousquenaud
- French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Toxicology and Biomonitoring Division, Vandoeuvre les Nancy, France
| |
Collapse
|
3
|
Mourot-Bousquenaud M, Langonné I, Buchheit M, Muller S, Coiscaud A, Mathiot J, Jacquenet S, Battais F. Identification of the allergenic sensitizing potential of bisphenol A substitutes used in the industry. Contact Dermatitis 2024; 90:169-181. [PMID: 37927141 DOI: 10.1111/cod.14452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Revised: 10/11/2023] [Accepted: 10/19/2023] [Indexed: 11/07/2023]
Abstract
BACKGROUND Bisphenol (BP-)A is a chemical used in Europe to produce polycarbonate plastics and epoxy resin or as colour developer in thermal paper. Due to its toxicity, BPA presence was restricted by European regulations. Therefore, substitute chemicals are replacing BPA. OBJECTIVE To assess the allergenic sensitizing potential of 27 substitutes to BPA used in the industry. METHODS The expression of two costimulatory molecules and six cytokines were analysed by flow cytometry in mouse bone marrow-derived dendritic cells (BMDCs) exposed to the chemicals. RESULTS All substances except one induced overexpression of at least one receptor and were thus identified as having allergenic sensitizing potential. Based on the BMDC model, they were classified as extreme (1 out of 27), strong (20 out of 27) and moderate (5 out of 27) sensitizers. BPA was classified as a moderate sensitizer and BPF was the only substitute classified as a non-sensitizer. The more potent substitutes induced more than 2-fold secretion of CCL3, CCL4 and/or CCL5 by dendritic cells. CONCLUSION Most of the BPA substitutes tested in this study have an allergenic sensitizing potential; 24 of them being more potent than BPA itself. Only BPE, BPF and 2,4-BPS appeared to be weaker sensitizers than BPA.
Collapse
Affiliation(s)
- Mélanie Mourot-Bousquenaud
- Toxicology and Biomonitoring Division, French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre les Nancy, France
| | - Isabelle Langonné
- Toxicology and Biomonitoring Division, French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre les Nancy, France
| | - Maurane Buchheit
- Toxicology and Biomonitoring Division, French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre les Nancy, France
| | - Samuel Muller
- Toxicology and Biomonitoring Division, French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre les Nancy, France
| | - Amélie Coiscaud
- Toxicology and Biomonitoring Division, French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre les Nancy, France
| | - Julianne Mathiot
- Toxicology and Biomonitoring Division, French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre les Nancy, France
| | - Sandrine Jacquenet
- Toxicology and Biomonitoring Division, French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre les Nancy, France
| | - Fabrice Battais
- Toxicology and Biomonitoring Division, French Research and Safety Institute for the Prevention of Occupational Accidents and Diseases (INRS), Vandoeuvre les Nancy, France
| |
Collapse
|
4
|
Audry A, Mathiot J, Muller S, Coiscaud A, Langonné I, Battais F, Leininger B, Sponne I. A new cytometry-based method reveals an accumulation of Nrf2 in dendritic cells exposed to two respiratory sensitizers. Toxicol Res (Camb) 2021; 10:1223-1227. [PMID: 34956624 PMCID: PMC8692752 DOI: 10.1093/toxres/tfab101] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 10/04/2021] [Accepted: 10/12/2021] [Indexed: 10/20/2023] Open
Abstract
The mechanisms underlying chemical respiratory sensitization are incompletely understood. One of the major cell types involved in this pathology are dendritic cells. In this study, the mechanisms of the NRF2-Keap1 pathway were studied using a bone marrow-derived dendritic cell model exposed to two respiratory sensitizers: ammonium hexachloroplatinate (HCP) and ammonium tetrachloroplatinate (ATCP). Expression levels for two Nrf2-regulated genes, hmox1 and srxn1, were analyzed by real time-quantitative polymerase chain reaction. A flow cytometry-based method was also developed to measure intracellular Nrf2 accumulation in dendritic cells following exposure. Exposure to HCP and ATCP increased both hmox1 and srxn1 gene expression, and was associated with accumulation of Nrf2 protein in cells. Overall, these results show that the respiratory sensitizers, in addition to skin sensitizers, can also induced markers associated with NRF2-Keap1 pathway activation in dendritic cells. This study contributes to a better understanding of the adverse outcome of respiratory sensitization.
Collapse
Affiliation(s)
- Adrien Audry
- Correspondence address. Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), rue du Morvan – 54500 Vandœuvre-ès-Nancy, France. Tel: +33 3 83 50 20 00; E-mail:
| | | | | | | | | | | | | | | |
Collapse
|
5
|
Battais F, Audry A, Mathiot J, Muller S, Langonné I, Sponne I. De nouveaux tests pour évaluer le caractère sensibilisant d’une substance industrielle. ARCH MAL PROF ENVIRO 2020. [DOI: 10.1016/j.admp.2020.03.188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
6
|
Huppert C, Paris C, Langonné I, Muller S, Mathiot J, Abdessadeq H, Gagnaire F, Battais F, Sponne I. Activation of T cells by dendritic cells exposed to a reference sensitizer: Towards a promising model to assess the allergenic potential of chemicals. Contact Dermatitis 2018; 79:67-75. [PMID: 29635784 DOI: 10.1111/cod.12991] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 01/25/2018] [Accepted: 02/10/2018] [Indexed: 12/01/2022]
Abstract
BACKGROUND Low molecular weight chemicals constitute one of the major causes of occupational allergies. European legislation on chemicals recommends limiting the use of in vivo models for assessing the sensitizing potential of chemicals, and encourages the development of integrated alternative methods. An in vitro mouse model of bone marrow-derived dendritic cells (BMDCs) that showed good accuracy (75%) and sensitivity (69%) has previously been developed to assess the sensitizing potential of chemicals. OBJECTIVE To assess the ability of BMDCs to activate T cells (TCs) in vitro. METHODS BMDCs pre-exposed to the reference sensitizer ammonium hexachloroplatinate (AHCP) were co-cultured with different subpopulations of TCs. TC activation was assessed by surface marker expression, proliferation, and cytokine release. RESULTS The results showed significant activation of TCs co-cultured with dendritic cells pre-exposed to AHCP as evaluated by CD124 expression, proliferation, and cytokine secretion. Moreover, the response of TCs appeared to be Th2-oriented. Naive TCs were shown to be involved in this response, and the removal of regulatory TCs did not improve the cell response. CONCLUSIONS The BMDCs used in this previously developed model appear to have the ability to activate TCs, confirming that the BMDC model represents a reliable assay for assessing the sensitizing potential of chemicals.
Collapse
Affiliation(s)
- Cécile Huppert
- Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), Vandœuvre-lès-Nancy cedex, France.,Faculté de Médecine, INGRES, EA 7298, Université de Lorraine, Vandœuvre-lès-Nancy, France
| | - Christophe Paris
- Faculté de Médecine, INGRES, EA 7298, Université de Lorraine, Vandœuvre-lès-Nancy, France.,INSERM, Unité U1085-IRSET, Rennes, France
| | - Isabelle Langonné
- Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), Vandœuvre-lès-Nancy cedex, France
| | - Samuel Muller
- Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), Vandœuvre-lès-Nancy cedex, France
| | - Julianne Mathiot
- Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), Vandœuvre-lès-Nancy cedex, France
| | - Hakima Abdessadeq
- Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), Vandœuvre-lès-Nancy cedex, France
| | - François Gagnaire
- Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), Vandœuvre-lès-Nancy cedex, France
| | - Fabrice Battais
- Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), Vandœuvre-lès-Nancy cedex, France
| | - Isabelle Sponne
- Department of Toxicology and Biometrology, National Institute for Research and Safety (INRS), Vandœuvre-lès-Nancy cedex, France
| |
Collapse
|
7
|
Battais F, Huppert C, Langonné I, Muller S, Sponne I. In vitrodetection of chemical allergens: an optimized assay using mouse bone marrow-derived dendritic cells. Contact Dermatitis 2017; 77:311-322. [DOI: 10.1111/cod.12829] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/14/2017] [Accepted: 04/11/2017] [Indexed: 12/25/2022]
Affiliation(s)
- Fabrice Battais
- Department of Toxicology and Biometrology; National Institute for Research and Safety (INRS); 54019 Vandoeuvre cedex France
| | - Cécile Huppert
- Department of Toxicology and Biometrology; National Institute for Research and Safety (INRS); 54019 Vandoeuvre cedex France
| | - Isabelle Langonné
- Department of Toxicology and Biometrology; National Institute for Research and Safety (INRS); 54019 Vandoeuvre cedex France
| | - Samuel Muller
- Department of Toxicology and Biometrology; National Institute for Research and Safety (INRS); 54019 Vandoeuvre cedex France
| | - Isabelle Sponne
- Department of Toxicology and Biometrology; National Institute for Research and Safety (INRS); 54019 Vandoeuvre cedex France
| |
Collapse
|
8
|
Richard C, Peres G, Guillaume G, Leduc V, Denery-Papini S, Battais F, Moneret-Vautrin DA. Specific IgG levels to wheat in wheat tolerant professional cyclists may depend on a homeostatic immune response to a high consumption of wheat. Eur Ann Allergy Clin Immunol 2012; 44:243-250. [PMID: 23441442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
BACKGROUND Implication of IgG antibodies to wheat has been alleged in gastrointestinal symptoms. Precise data on the specific IgG levels in healthy subjects are lacking. Our objectives are to compare levels of IgG antibodies to wheat protein fractions in healthy non atopic or atopic subjects, and in healthy professional cyclist subjects, taking into account the quantitative consumption of wheat. METHODS 24 control subjects and 26 professional cyclist subjects were selected. ELISA was performed to 2 wheat commercial solutions and to 3 wheat protein fractions. RESULTS No significant difference was observed between non atopic and atopic subjects. For wheat flour extract, physiological norm determined was 3.27 mg/L sIgG concentration +/- 1.25 CI (95% confidence intervals) for the professional cyclists (vs 1.56 mg/L +/- 0.91 CI in control subjects, p-value: 0.040). For gluten solution, physiological norm was 1.42 mg/L +/- 0.60 CI (vs 0.50 +/- 0.24 CI in control subjects, p-value: 0.010). CONCLUSION Atopic and non atopic healthy adults have a similar level of sIgG to wheat. Increased levels of sIgG are observed correlatively with an excessive consumption, and could contribute to homeostasis of tolerance. Studies searching for a pathogenic role of sIgG in certain pathologies should take into account the quantitative consumption.
Collapse
Affiliation(s)
- C Richard
- Genclis, 15 rue du bois de la Champelle, 54500 Vandoeuvre-Lès-Nancy, France.
| | | | | | | | | | | | | |
Collapse
|
9
|
Denery-Papini S, Bodinier M, Larré C, Brossard C, Pineau F, Triballeau S, Pietri M, Battais F, Mothes T, Paty E, Moneret-Vautrin DA. Allergy to deamidated gluten in patients tolerant to wheat: specific epitopes linked to deamidation. Allergy 2012; 67:1023-32. [PMID: 22737987 DOI: 10.1111/j.1398-9995.2012.02860.x] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/15/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND Gluten proteins can be modified by deamidation to enhance their solubility and technological applications. However, severe allergic reactions have been reported after the consumption of food products containing deamidated gluten (DG) in subjects tolerant to wheat. This work aimed to characterize allergen profiles for these patients in comparison with those of patients allergic to wheat and to identify IgE-binding epitopes. METHODS Sera were obtained from 15 patients allergic to DG and from nine patients allergic to wheat proteins (WP). IgE-binding profiles were characterized both in ELISA and in a humanized rat basophilic leukaemia (RBL) cell model. Epitopes were mapped on γ- and ω2-gliadin sequences by Pepscan, and effect of glutamine/glutamic acid substitutions was studied. RESULTS Compared to the heterogeneous pattern of allergens detected by IgE from patients allergic to WP, responses of patients allergic to DG were homogeneous. In ELISA, all the sera displayed IgE binding to deamidated γ- and ω2-gliadins and deamidated total gliadins, frequently with high concentrations. These modified proteins induced RBL degranulation with most of the sera from DG-allergic patients. A consensus epitope was found on native γ- and ω2-gliadins (QPQQPFPQ); it was repeated several times in their sequences. The substitution of two or three glutamines of this epitope into glutamic acid at positions Q3 or Q4 and Q8 (QPEEPFPE) increased its recognition the best. CONCLUSION Allergy to DG is a separate entity from wheat allergy. It can be evidenced by strong IgE binding to deamidated gliadins or peptides of the type QPEEPFPE.
Collapse
Affiliation(s)
- S. Denery-Papini
- UR1268 Biopolymers, Interactions, Assemblies; INRA; Nantes Cedex 03; France
| | - M. Bodinier
- UR1268 Biopolymers, Interactions, Assemblies; INRA; Nantes Cedex 03; France
| | - C. Larré
- UR1268 Biopolymers, Interactions, Assemblies; INRA; Nantes Cedex 03; France
| | - C. Brossard
- UR1268 Biopolymers, Interactions, Assemblies; INRA; Nantes Cedex 03; France
| | - F. Pineau
- UR1268 Biopolymers, Interactions, Assemblies; INRA; Nantes Cedex 03; France
| | - S. Triballeau
- UR1268 Biopolymers, Interactions, Assemblies; INRA; Nantes Cedex 03; France
| | - M. Pietri
- UR1268 Biopolymers, Interactions, Assemblies; INRA; Nantes Cedex 03; France
| | - F. Battais
- Polluants and Health/Immunotoxicity Department; INRS; Vandœuvre-Lès-Nancy; France
| | - T. Mothes
- Institute for Laboratory Medicine; University Hospital and Medical Faculty of the University; Leipzig; Germany
| | - E. Paty
- Service de Pneumologie et d'Allergologie pédiatriques; Groupe Hospitalier Necker; Paris Cedex 15; France
| | - D.-A. Moneret-Vautrin
- Faculté de Médecine de Nancy; Service d'Allergologie; Centre Hospitalier Jean Monnet; Epinal; France
| |
Collapse
|
10
|
Jacquenet S, Morisset M, Battais F, Denery-Papini S, Croizier A, Baudouin E, Bihain B, Moneret-Vautrin D. Interest of ImmunoCAP System to Recombinant ω-5 Gliadin for the Diagnosis of Exercise-Induced Wheat Allergy. Int Arch Allergy Immunol 2008; 149:74-80. [DOI: 10.1159/000176309] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Accepted: 07/04/2008] [Indexed: 11/19/2022] Open
|
11
|
Battais F, Richard C, Jacquenet S, Denery-Papini S, Moneret-Vautrin DA. Wheat grain allergies: an update on wheat allergens. Eur Ann Allergy Clin Immunol 2008; 40:67-76. [PMID: 19334370] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Wheat grain is a major staple of our diet. However, proteins derived from wheat grain have been implicated in both respiratory and food allergies, as well as in contact hypersensitivity. Numerous wheat allergens are present in the different fractions of wheat grain: a-amylase/trypsin inhibitor and lipid transfer protein are found in the water/salt soluble fraction, and omega5-gliadins and LMW-glutenins have been detected in the gluten fraction. This review discusses what is currently known about wheat grain proteins and allergens. The type of IgE-binding profiles (allergens or even epitopes) in patients with wheat food allergy as a function of age, symptoms, or genetic variability of wheat cultivars provides interesting and useful data for developing hypoallergenic foods as well as new tools for diagnostic and therapeutic methods.
Collapse
Affiliation(s)
- F Battais
- Genclis SAS, Vandoeuvre les Nancy, France
| | | | | | | | | |
Collapse
|
12
|
|
13
|
Richard C, Leduc V, Battais F. Plant lipid transfer proteins (LTPS): biochemical aspect in panallergen--structural and functional features, and allergenicity. Eur Ann Allergy Clin Immunol 2007; 39:76-84. [PMID: 17465279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Lipid transfer proteins (LTPs) are highly conserved and widely distributed throughout the plant kingdom. Several members of LTP family have been identified as relevant allergens in food and pollens. Because of their high resistance to heat treatments and enzymatic digestion, these proteins are allergenic candidates for oral route sensitisation. This review presents biochemical features, allergenicities and cross reactivities of fruit, cereal and pollen LTPs.
Collapse
Affiliation(s)
- C Richard
- Laboratoire ALLERBIO-Groupe ALK-Abello-8, rue portes aux champs-55270 Varennes en Argonne, France
| | | | | |
Collapse
|
14
|
Battais F, Richard C, Szustakowski G, Denery-Papini S, Moneret-Vautrin DA, Leduc V, Guérin L. Wheat flour allergy: an entire diagnostic tool for complex allergy. Eur Ann Allergy Clin Immunol 2006; 38:59-61. [PMID: 16711538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Wheat proteins are involved in respiratory allergy, contact allergy and food allergy. Wheat allergens involve in these pathologies are well-known. However, establishment of wheat allergy diagnostic can be sometimes difficult on account of the complex allergenic composition of skin prick test (SPT) solutions of wheat flour. Therefore, we have studied specific IgE reactivity from patient sera with wheat food allergy, and characterized allergenic composition of wheat SPT solutions by specific antibodies directed to wheat allergens. The results showed that 20 of the 25 sera analyzed contained specific IgE to at least one wheat protein fraction. Among positive sera, 75% have specific IgE to water/salt soluble fraction, 85% to native gluten fractions and 65% to wheat isolate fraction. The results showed also that SPT solutions of wheat flour contained major food allergens from each allergenic fraction. These results highlighted the importance of using fractions, which constitute the whole wheat allergenic pattern, during specific IgE reactivity analyses. Moreover, we have observed that wheat isolate extract (results of food industrial process) contained not only modified allergens (neo-allergens) involve of specific food allergy to wheat isolate but also some native allergens involve in wheat food allergy. Thus, these results showed the importance to use, for wheat in vivo diagnosis together wheat SPT solutions (gluten extract and wheat isolate) in order to differentiate wheat food allergy to specific wheat isolate allergy.
Collapse
Affiliation(s)
- F Battais
- Laboratoire Allerbio, Varennes-en-Argonne
| | | | | | | | | | | | | |
Collapse
|
15
|
|
16
|
Battais F, Courcoux P, Popineau Y, Kanny G, Moneret-Vautrin DA, Denery-Papini S. Food allergy to wheat: differences in immunoglobulin E-binding proteins as a function of age or symptoms. J Cereal Sci 2005. [DOI: 10.1016/j.jcs.2005.01.004] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
17
|
Battais F, Mothes T, Moneret-Vautrin DA, Pineau F, Kanny G, Popineau Y, Bodinier M, Denery-Papini S. Identification of IgE-binding epitopes on gliadins for patients with food allergy to wheat. Allergy 2005; 60:815-21. [PMID: 15876313 DOI: 10.1111/j.1398-9995.2005.00795.x] [Citation(s) in RCA: 118] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
BACKGROUND Food allergy to wheat induces different symptoms as atopic eczema/dermatitis syndrome (AEDS), urticaria and more severe reactions as wheat-dependent exercise-induced anaphylaxis (WDEIA). Different gliadin classes are involved in this allergy but IgE-binding epitopes are known only on omega5-gliadins and for WDEIA cases. OBJECTIVES The aim of the study was to identify IgE-binding epitopes on several gliadin classes and for several patients with different symptoms and ages. METHODS Eleven sera were analysed by pepscan with overlapping synthetic peptides. RESULTS Sera from five patients with anaphylaxis, urticaria or WDEIA, displayed strong IgE-binding to sequential epitopes of the repetitive domains of alphabeta, gamma, omega2 or omega5-gliadins with two immunodominant epitopes on omega5-gliadin and a consensus motif of the type QQX1PX2QQ (X1 being L, F, S or I and X2 Q, E or G). One patient allergic to deamidated wheat proteins also had IgE to a repetitive peptide of gamma and omega2-gliadins of the type QPQQPFP. Sera from four patients with AEDS detected no linear epitopes on gliadins, despite the fact that they contained specific IgE to alpha, beta, gamma or omega-gliadins. One child with AEDS recognized cysteine-containing sequences in the nonrepetitive domains of alphabeta and gamma-gliadins. CONCLUSION B epitopes in wheat allergy were different from B epitopes of coeliac disease. Differences exist in IgE-binding epitopes between patients with food allergy to wheat. IgE from those suffering from WDEIA, anaphylaxis and urticaria detected sequential epitopes in the repetitive domain of gliadins whereas IgE from AEDS patients probably recognized conformational epitopes.
Collapse
Affiliation(s)
- F Battais
- INRA, Research Unit on Plant Proteins and their Interactions (URPVI), Rue de la Géraudière, BP 71627 44316 Nantes, France
| | | | | | | | | | | | | | | |
Collapse
|
18
|
Battais F, Mothes T, Moneret-Vautrin DA, Pineau F, Kanny G, Popineau Y, Bodinier M, Denery-Papini S. Identification of IgE-binding epitopes on gliadins for patients with food allergy to wheat. Allergy 2005. [PMID: 15876313 DOI: 10.1111/j.1398‐9995.2005.00795.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
BACKGROUND Food allergy to wheat induces different symptoms as atopic eczema/dermatitis syndrome (AEDS), urticaria and more severe reactions as wheat-dependent exercise-induced anaphylaxis (WDEIA). Different gliadin classes are involved in this allergy but IgE-binding epitopes are known only on omega5-gliadins and for WDEIA cases. OBJECTIVES The aim of the study was to identify IgE-binding epitopes on several gliadin classes and for several patients with different symptoms and ages. METHODS Eleven sera were analysed by pepscan with overlapping synthetic peptides. RESULTS Sera from five patients with anaphylaxis, urticaria or WDEIA, displayed strong IgE-binding to sequential epitopes of the repetitive domains of alphabeta, gamma, omega2 or omega5-gliadins with two immunodominant epitopes on omega5-gliadin and a consensus motif of the type QQX1PX2QQ (X1 being L, F, S or I and X2 Q, E or G). One patient allergic to deamidated wheat proteins also had IgE to a repetitive peptide of gamma and omega2-gliadins of the type QPQQPFP. Sera from four patients with AEDS detected no linear epitopes on gliadins, despite the fact that they contained specific IgE to alpha, beta, gamma or omega-gliadins. One child with AEDS recognized cysteine-containing sequences in the nonrepetitive domains of alphabeta and gamma-gliadins. CONCLUSION B epitopes in wheat allergy were different from B epitopes of coeliac disease. Differences exist in IgE-binding epitopes between patients with food allergy to wheat. IgE from those suffering from WDEIA, anaphylaxis and urticaria detected sequential epitopes in the repetitive domain of gliadins whereas IgE from AEDS patients probably recognized conformational epitopes.
Collapse
Affiliation(s)
- F Battais
- INRA, Research Unit on Plant Proteins and their Interactions (URPVI), Rue de la Géraudière, BP 71627 44316 Nantes, France
| | | | | | | | | | | | | | | |
Collapse
|
19
|
Battais F, Douliez J, Marion D, Popineau Y, Kanny G, Moneret-Vautrin D, Denery-Papini S. Involvement of Lipid Transfer Proteins in Food Allergy to Wheat. Gluten Proteins 2004. [DOI: 10.1039/9781847552099-00383] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
|
20
|
Battais F, Pineau F, Popineau Y, Aparicio C, Kanny G, Guerin L, Moneret-Vautrin DA, Denery-Papini S. Food allergy to wheat: identification of immunogloglin E and immunoglobulin G-binding proteins with sequential extracts and purified proteins from wheat flour. Clin Exp Allergy 2003; 33:962-70. [PMID: 12859454 DOI: 10.1046/j.1365-2222.2003.01592.x] [Citation(s) in RCA: 102] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Cereal-associated allergy is particularly considered a serious problem, because cereals are essential in our daily diet. Wheat proteins are classified into albumins, globulins and prolamins (insoluble gliadins and glutenins). OBJECTIVES Our objectives were to study the involvement in food allergy to wheat of these different protein types by using purified fractions and to identify those binding IgE and IgG antibodies. METHODS Sera were obtained from 28 patients with food allergy to wheat. Albumins/globulins, gliadins and glutenins were obtained by sequential extraction based on differential solubility; alpha-, beta-, gamma- and omega-gliadins and low molecular weight (LMW) and high molecular weight (HMW) glutenin subunits were purified by chromatography. IgE binding to these extracts and fractions were analysed by radioallergosorbent test (RAST), and immunoblotting; IgG binding was detected by enzyme-linked immunosorbent assay (ELISA). RESULTS In RAST, 60% of sera were shown to have specific IgE antibodies against alpha-, beta-gliadins and LMW glutenin subunits, 55% to gamma-gliadins, 48% to omega-gliadins and 26% to HMW glutenins. Immunoblotting analysis confirmed results obtained in RAST concerning LMW and HMW glutenin subunits and showed that 67% of patients have IgE antibodies to the albumin/globulin fraction. CONCLUSION Results obtained in the different tests showed common features and in agreement with other studies indicated the presence of numerous allergens in food allergy to wheat; alpha-, beta-, gamma- and omega-gliadins, LMW glutenin subunits and some water/salt-soluble proteins appeared as major IgE binding allergens, whereas HMW glutenins were only minor allergens. The same type of antigenic profile against gliadins and glutenins was observed with IgG antibodies. Important sequence or structural homologies between the various gliadins and LMW glutenin subunits could certainly explain similarity of IgE binding to these proteins.
Collapse
Affiliation(s)
- F Battais
- INRA, Unité de Recherche sur les Protéines Végétales et leurs Interactions, Nantes, France
| | | | | | | | | | | | | | | |
Collapse
|
21
|
Battais F, Aparicio C, Kanny G, Guérin L, Moneret-Vautrin DA, Denery-Papini S. [Allergenicity of wheat flour]. Allerg Immunol (Paris) 2002; 34:98-9. [PMID: 12012796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/25/2023]
Abstract
Food allergy to wheat flour is a pathology that is found less frequently than coeliac disease or respiratory allergy to flour; it seems however to be a constant argument. Our study used a panel of 28 patients diagnosed with food allergy to wheat flour. Our objective was to characterise the reactivity of type IgE and IgG antibodies of these patients with regard to the different classes of proteins of wheat flour so as to establish an antigenic profile of the allergens of wheat in the framework of food allergy to flour. Our results show the implication of different classes of wheat proteins and notably the major reserve proteins (gliadins and glutens) in food allergy.
Collapse
Affiliation(s)
- F Battais
- INRA, Unité de Biochimie et de Technologie des Protéines, B.P. 71627, 44316 Nantes
| | | | | | | | | | | |
Collapse
|