1
|
Abu Risha M, Rick EM, Plum M, Jappe U. Legume Allergens Pea, Chickpea, Lentil, Lupine and Beyond. Curr Allergy Asthma Rep 2024; 24:527-548. [PMID: 38990406 PMCID: PMC11364600 DOI: 10.1007/s11882-024-01165-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/26/2024] [Indexed: 07/12/2024]
Abstract
PURPOSE OF THE REVIEW In the last decade, an increasing trend towards a supposedly healthier vegan diet could be observed. However, recently, more cases of allergic reactions to plants and plant-based products such as meat-substitution products, which are often prepared with legumes, were reported. Here, we provide the current knowledge on legume allergen sources and the respective single allergens. We answer the question of which legumes beside the well-known food allergen sources peanut and soybean should be considered for diagnostic and therapeutic measures. RECENT FINDINGS These "non-priority" legumes, including beans, pea, lentils, chickpea, lupine, cowpea, pigeon pea, and fenugreek, are potentially new important allergen sources, causing mild-to-severe allergic reactions. Severe reactions have been described particularly for peas and lupine. An interesting aspect is the connection between anaphylactic reactions and exercise (food-dependent exercise-induced anaphylaxis), which has only recently been highlighted for legumes such as soybean, lentils and chickpea. Most allergic reactions derive from IgE cross-reactions to homologous proteins, for example between peanut and lupine, which is of particular importance for peanut-allergic individuals ignorant to these cross-reactions. From our findings we conclude that there is a need for large-scale studies that are geographically distinctive because most studies are case reports, and geographic differences of allergic diseases towards these legumes have already been discovered for well-known "Big 9" allergen sources such as peanut and soybean. Furthermore, the review illustrates the need for a better molecular diagnostic for these emerging non-priority allergen sources to evaluate IgE cross-reactivities to known allergens and identify true allergic reactions.
Collapse
Affiliation(s)
- Marua Abu Risha
- Clinical and Molecular Allergology, Priority Research Area Chronic Lung Diseases, Research Center Borstel, Borstel, Germany
- German Center for Lung Research (DZL), Airway Research Center North (ARCN), Borstel, Germany
| | - Eva-Maria Rick
- Clinical and Molecular Allergology, Priority Research Area Chronic Lung Diseases, Research Center Borstel, Borstel, Germany
- German Center for Lung Research (DZL), Airway Research Center North (ARCN), Borstel, Germany
| | - Melanie Plum
- Clinical and Molecular Allergology, Priority Research Area Chronic Lung Diseases, Research Center Borstel, Borstel, Germany
- German Center for Lung Research (DZL), Airway Research Center North (ARCN), Borstel, Germany
| | - Uta Jappe
- Clinical and Molecular Allergology, Priority Research Area Chronic Lung Diseases, Research Center Borstel, Borstel, Germany.
- German Center for Lung Research (DZL), Airway Research Center North (ARCN), Borstel, Germany.
- Interdisciplinary Allergy Outpatient Clinic, Department of Pneumology, University of Lübeck, Lübeck, Germany.
| |
Collapse
|
2
|
Aguilera-Insunza R, Iturriaga C, Mariñanco A, Venegas L, Aravena G, Perez-Mateluna G, Baptista-Dias N, Borzutzky A, Wandersleben T. High prevalence of lupin allergy among patients with peanut allergy: Identification of γ-conglutin as major allergen. Ann Allergy Asthma Immunol 2023; 130:225-232. [PMID: 36191849 DOI: 10.1016/j.anai.2022.09.036] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 09/26/2022] [Accepted: 09/27/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Lupin is a protein-rich legume with a growing presence in the food market worldwide. With increased consumption, lupin allergy (LA) reports are also rising. Uncertainties exist on the cross-reactivity between peanut and lupin, the allergenic potential of different lupin species, and sensitization patterns among different populations. OBJECTIVE To evaluate the molecular basis of LA and to determine lupin allergens from 3 different species that may be involved in peanut allergy (PA) cross-reactivity. METHODS A total of 43 subjects with PA, those with LA, or controls without food allergy were evaluated with skin prick tests (SPTs) and specific IgEs (sIgEs). Lupin-sensitized subjects were offered a lupin oral food challenge (OFC). Immunoblots and enzyme-linked immunosorbent assays were performed on sera from lupin-sensitized subjects. RESULTS In this study, 44% of the PA subjects were confirmed to have LA by OFC. Anaphylaxis was the most frequent manifestation after lupin consumption, with a minimal eliciting dosage of 1 g lupin flour. There was no difference in lupin sIgE or SPT wheal size between lupin-sensitized and confirmed LA subjects or in the severity of symptoms among confirmed LA subjects. Sera from lupin-sensitized subjects uniformly reacted to all 3 different lupin species. Immunoblotting and enzyme-linked immunosorbent assays revealed immunoglobulin E binding to α- and γ-conglutin in all analyzed sera, whereas α- and β-conglutin recognition was variable. CONCLUSION Our findings reveal a high prevalence of LA among PA subjects, emphasizing lupin must be labeled as an allergen in foods. Owing to high variability in lupin-sIgE and lupin-SPT results, LA diagnosis may require OFC. In our population, γ-conglutin is the major allergen of lupin.
Collapse
Affiliation(s)
- Raquel Aguilera-Insunza
- Department of Immunology and Rheumatology, School of Medicine, Pontificia Universidad, Católica de Chile, Santiago, Chile
| | - Carolina Iturriaga
- Translational Allergy and Immunology Laboratory, Department of Pediatric Infectious Diseases and Immunology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Angélica Mariñanco
- Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile
| | - Luis Venegas
- Translational Allergy and Immunology Laboratory, Department of Pediatric Infectious Diseases and Immunology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | | | - Guillermo Perez-Mateluna
- Translational Allergy and Immunology Laboratory, Department of Pediatric Infectious Diseases and Immunology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nathalia Baptista-Dias
- Scientific and Technological Bioresource Nucleus, BIOREN, Universidad de La Frontera (UFRO), Temuco, Chile
| | - Arturo Borzutzky
- Translational Allergy and Immunology Laboratory, Department of Pediatric Infectious Diseases and Immunology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile; Instituto Milenio en Inmunología e Inmunoterapia, Escuela de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Traudy Wandersleben
- Departamento de Ciencias Químicas y Recursos Naturales, Universidad de La Frontera, Temuco, Chile.
| |
Collapse
|
3
|
Boukid F, Pasqualone A. Lupine (Lupinus spp.) proteins: characteristics, safety and food applications. Eur Food Res Technol 2021. [DOI: 10.1007/s00217-021-03909-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
4
|
Villa C, Costa J, Mafra I. Lupine allergens: Clinical relevance, molecular characterization, cross-reactivity, and detection strategies. Compr Rev Food Sci Food Saf 2020; 19:3886-3915. [PMID: 33337069 DOI: 10.1111/1541-4337.12646] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 08/13/2020] [Accepted: 09/15/2020] [Indexed: 12/25/2022]
Abstract
Lupine is commonly utilized as a technological food and ingredient in a great variety of processed products (snacks, bakery, meat, and dairy products) principally owing to its nutritional value and technological properties. However, its ingestion, even at trace amounts (in the range of mg protein per kg of food), can lead to severe adverse reactions in allergic individuals. Lupine belongs to the Leguminosae family, having the conglutins (α-, β-, δ-, and γ-) as allergens, among other proteins. Cross-sensitization of lupine-sensitized individuals with other legume species, mainly peanut, can occur, but the associated clinical reactivity is still unclear. The protection of the sensitized individuals should depend on an avoidance diet, which should rely on the compliance of food labeling and, as such, on their verification by analytical methods. Food processing, such as heat treatments, has an important influence on the structural properties of lupine proteins, altering their detectability and allergenicity. In this review, different aspects related with lupine allergy are described, namely, the overall prevalence, clinical relevance, diagnosis, and treatment. The characterization of lupine allergens and their potential cross-reactivity with other legumes are critically discussed. The effects of food matrix, processing, and digestibility on lupine proteins, as well as the available analytical tools for detecting lupine at trace levels in foods, are also herein emphasized.
Collapse
Affiliation(s)
- Caterina Villa
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Joana Costa
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| | - Isabel Mafra
- REQUIMTE-LAQV, Faculdade de Farmácia, Universidade do Porto, Porto, Portugal
| |
Collapse
|
5
|
Kitisripanya T, Inyai C, Krittanai S, Likhitwitayawuid K, Sritularak B, Ploypradith P, Tanaka H, Morimoto S, Putalun W. A monoclonal antibody-based immunoassay for the determination of oxyresveratrol from Artocarpus lacucha Buch.-Ham. J Nat Med 2017; 71:523-530. [PMID: 28364228 DOI: 10.1007/s11418-017-1083-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 03/13/2017] [Indexed: 11/26/2022]
Abstract
Oxyresveratrol is a major active compound in the heartwood of Artocarpus lacucha. It plays an important role in anti-tyrosinase, antioxidant, anti-inflammatory, antiviral and neuroprotective properties. There are many A. lacucha commercial products available on the market for skin whitening and anti-aging effects. To evaluate the quality of raw material from the plant, a monoclonal antibody (MAb) against oxyresveratrol was generated in this study. The immunogen was prepared by the Mannich reaction for the conjugation of oxyresveratrol and cationized bovine serum albumin (cBSA). The conjugation of oxyresveratrol-cBSA at a ratio of 1:50 was used for the immunization. The novel MAb (E4) was specific to oxyresveratrol and resveratrol. An indirect competitive enzyme-linked immunosorbent assay (ELISA) using the MAb (E4) was developed for the determination of oxyresveratrol. The linear range for the measurement of oxyresveratrol was 63-500 ng/mL and the precision (% relative standard deviation) was found to be <10% with the percentages of recovery from 95.93-103.55%. According to the validation analysis, the established ELISA can be applied for the determination of oxyresvertrol in the heartwood of A. lacucha and samples of the traditional drug Puag-Haad. With reliability and high sensitivity, this assay can provide an alternative approach for the quantitative analysis of oxyresveratrol in A. lacucha samples.
Collapse
Affiliation(s)
- Tharita Kitisripanya
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Chadathorn Inyai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | - Supaluk Krittanai
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand
| | | | - Boonchoo Sritularak
- Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Poonsakdi Ploypradith
- Laboratory of Medicinal Chemistry, Program in Chemical Biology, Chulabhorn Research Institute, Chulabhorn Graduate Institute, 54 Kampaeng Phet 6 Road, Bangkok, Thailand
| | - Hiroyuki Tanaka
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Satoshi Morimoto
- Graduate School of Pharmaceutical Sciences, Kyushu University, Fukuoka, 812-8582, Japan
| | - Waraporn Putalun
- Faculty of Pharmaceutical Sciences, Khon Kaen University, Khon Kaen, 40002, Thailand.
- Research Group for Pharmaceutical Activities of Natural Products using Pharmaceutical Biotechnology (PANPB), National Research University-Khon Kaen University, Khon Kaen, 40002, Thailand.
| |
Collapse
|
6
|
Scientific Opinion on the evaluation of allergenic foods and food ingredients for labelling purposes. EFSA J 2014. [DOI: 10.2903/j.efsa.2014.3894] [Citation(s) in RCA: 72] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
|
7
|
Targeted DNA vaccines eliciting crossreactive anti-idiotypic antibody responses against human B cell malignancies in mice. J Transl Med 2014; 12:207. [PMID: 25059102 PMCID: PMC4119056 DOI: 10.1186/1479-5876-12-207] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Accepted: 06/25/2014] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Therapeutic idiotypic (Id) vaccination is an experimental treatment for selected B cell malignancies. A broader use of Id-based vaccination, however, is hampered by the complexity and costs due to the individualized production of protein vaccines. These limitations may be overcome by targeted DNA vaccines encoding stereotyped immunoglobulin V regions of B cell malignancies. We have here investigated whether such vaccines might elicit cross-reactive immune responses thus offering the possibility to immunize subsets of patients with the same vaccine. METHODS Fusion vaccines targeting patient Id to mouse Major Histocompatibility Complex (MHC) class II molecules (chimeric mouse/human) or chemokine receptors (fully human) on antigen-presenting cells (APC) were genetically constructed for two Chronic Lymphocytic Leukemia (CLL) patients and one prototypic stereotyped B-cell receptor (BCR) commonly expressed by Hepatitis C Virus (HCV)-associated Non Hodgkin Lymphoma (NHL). The A20 murine B lymphoma cells were engineered to express prototypic HCV-associated B cell lymphoma BCR. Anti-Id antibody responses were studied against stereotyped and non-stereotyped BCRs on CLL patients' cells as well as transfected A20 cells. RESULTS DNA vaccination of mice with Id vaccines that target APC elicited increased amounts of antibodies specific for the patient's Id as compared with non targeted control vaccines. Anti-Id antibodies cross-reacted between CLL cells with closely related BCR. A20 cells engineered to express patients' V regions were not tumorigenic in mice, preventing tumor challenge experiments. CONCLUSIONS These findings provide experimental support for use of APC-targeted fusion Id DNA vaccines for the treatment of B cell lymphoma and CLL that express stereotyped BCRs.
Collapse
|
8
|
Svobodova M, Mairal T, Nadal P, Bermudo MC, O'Sullivan CK. Ultrasensitive aptamer based detection of β-conglutin food allergen. Food Chem 2014; 165:419-23. [PMID: 25038695 DOI: 10.1016/j.foodchem.2014.05.128] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2013] [Revised: 05/19/2014] [Accepted: 05/24/2014] [Indexed: 12/30/2022]
Abstract
Lupine has been increasingly used in food applications due to its high nutritional value and excellent functional properties. However, there has been a response to the increasing number of severe cases of lupine allergies reported during the last decade, and as a result lupine was recently added to the list of substances requiring mandatory advisory labelling on foodstuffs sold in the European Union. In this paper we report the robust and ultrasensitive detection of the anaphylactic β-conglutin allergen using Apta-PCR achieving a detection limit of 85 pM (25 ng mL(-1)). No cross-reactivity with other conglutins or plant species potentially used in lupine containing foodstuffs was observed. This robust method provides an effective analytical tool for the detection and quantification of the toxic β-conglutin subunit present in lupine flour.
Collapse
Affiliation(s)
- Marketa Svobodova
- Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007 Tarragona, Spain.
| | - Teresa Mairal
- Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Pedro Nadal
- Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - M Carmen Bermudo
- Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007 Tarragona, Spain
| | - Ciara K O'Sullivan
- Nanobiotechnology and Bioanalysis Group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007 Tarragona, Spain; Institució Catalana de Recerca I Estudis Avancats, Passeig Lluís Companys 23, 08010 Barcelona, Spain.
| |
Collapse
|
9
|
Mairal T, Nadal P, Svobodova M, O'Sullivan CK. FRET-based dimeric aptamer probe for selective and sensitive Lup an 1 allergen detection. Biosens Bioelectron 2013; 54:207-10. [PMID: 24280051 DOI: 10.1016/j.bios.2013.10.070] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 10/14/2013] [Accepted: 10/22/2013] [Indexed: 11/18/2022]
Abstract
A sensitive method for the rapid and sensitive detection of the anaphylactic food allergen Lup an 1 (β-conglutin) exploiting fluorescence resonance energy transfer (FRET) has been developed. A high affinity dimeric form of a truncated 11-mer aptamer against β-conglutin was used, with each monomeric aptamer being flanked by donor/acceptor moieties. The dimeric form in the absence of target yields fluorescence emission due to the FRET from the excited fluorophore to the proximal second fluorophore. However, upon addition of β-conglutin, the specific interaction induces a change in the bi-aptameric structure resulting in an increase in fluorescence emission. The method is highly specific and sensitive, with a detection limit of 150 pM, providing an effective tool for the direct detection of the toxic β-conglutin subunit in foodstuffs in just 1 min at room temperature.
Collapse
Affiliation(s)
- T Mairal
- Nanobiotechnology and Bioanalysis group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007, Tarragona, Spain
| | - P Nadal
- Nanobiotechnology and Bioanalysis group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007, Tarragona, Spain
| | - M Svobodova
- Nanobiotechnology and Bioanalysis group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007, Tarragona, Spain.
| | - C K O'Sullivan
- Nanobiotechnology and Bioanalysis group, Department of Chemical Engineering, Universitat Rovira i Virgili, 43007, Tarragona, Spain; Institució Catalana de Recerca I Estudis Avancats, Passeig Lluís Companys 23, 08010 Barcelona, Spain.
| |
Collapse
|
10
|
Probing high-affinity 11-mer DNA aptamer against Lup an 1 (β-conglutin). Anal Bioanal Chem 2013; 405:9343-9. [PMID: 24126837 DOI: 10.1007/s00216-013-7385-0] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2013] [Revised: 09/12/2013] [Accepted: 09/16/2013] [Indexed: 12/22/2022]
Abstract
Aptamers are synthetic nucleic acids with great potential as analytical tools. However, the length of selected aptamers (typically 60-100 bases) can affect affinity, due to the presence of bases not required for interaction with the target, and therefore, the truncation of these selected sequences and identification of binding domains is a critical step to produce potent aptamers with higher affinities and specificities and lowered production costs. In this paper we report the truncation of an aptamer that specifically binds to β-conglutin (Lup an 1), an anaphylactic allergen. Through comparing the predicted secondary structures of the aptamers, a hairpin structure with a G-rich loop was determined to be the binding motif. The highest affinity was observed with a truncation resulting in an 11-mer sequence that had an apparent equilibrium dissociation constant (K D) of 1.7 × 10(-9) M. This 11-mer sequence was demonstrated to have high specificity for β-conglutin and showed no cross-reactivity to other lupin conglutins (α-, δ-, γ-conglutins) and closely related proteins such as gliadin. Finally, the structure of the truncated 11-mer aptamer was preliminarily elucidated, and the GQRS Mapper strongly predicted the presence of a G-quadruplex, which was subsequently corroborated using one-dimensional NMR, thus highlighting the stability of the truncated structure.
Collapse
|
11
|
Nadal P, Pinto A, Svobodova M, Canela N, O'Sullivan CK. DNA aptamers against the Lup an 1 food allergen. PLoS One 2012; 7:e35253. [PMID: 22529997 PMCID: PMC3328447 DOI: 10.1371/journal.pone.0035253] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2011] [Accepted: 03/14/2012] [Indexed: 11/22/2022] Open
Abstract
Using in vitro selection, high affinity DNA aptamers to the food allergen Lup an 1, ß-conglutin, were selected from a pool of DNA, 93 bases in length, containing a randomised sequence of 49 bases. ß-conglutin was purified from lupin flour and chemically crosslinked to carboxylated magnetic beads. Peptide mass fingerprinting was used to confirm the presence of the ß-conglutin. Single stranded DNA was generated from the randomised pool using T7 Gene 6 Exonuclease and was subsequently incubated with the magnetic beads and the captured DNA was released and amplified prior to a further round of Systematic Evolution of Ligands by Exponential Enrichment (SELEX). Evolution was monitored using enzyme linked oligonucleotide assay and surface plasmon resonance. Once a plateau in evolution was reached, the isolated DNA sequences were cloned and sequenced. The consensus motif was identified via alignment of the sequences and the affinities of these sequences for immobilised ß-conglutin were determined using surface plasmon resonance. The selected aptamer was demonstrated to be highly specific, showing no cross-reactivity with other flour ingredients or with other conglutin fractions of lupin. The secondary structures of the selected aptamers were predicted using m-fold. Finally, the functionality of the selected aptamers was demonstrated using a competitive assay for the quantitative detection of ß-conglutin. . Future work will focus on structure elucidation and truncation of the selected sequences to generate a smaller aptamer for application to the analysis of the Lup an 1 allergen in foodstuffs.
Collapse
Affiliation(s)
- Pedro Nadal
- Departament d'Enginyería Química, Universitat Rovira i Virgili, Tarragona, Spain
| | | | | | | | | |
Collapse
|
12
|
Czubinski J, Dwiecki K, Siger A, Kachlicki P, Neunert G, Lampart-Szczapa E, Nogala-Kalucka M. Release of flavonoids from lupin globulin proteins during digestion in a model system. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:1830-1836. [PMID: 22264085 DOI: 10.1021/jf2042592] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Lupin seed globulin proteins form complexes with flavonoids, predominantly apigenin C-glycosides. Enzymes typical for the gastrointestinal tract were used to hydrolyze lupin seed globulins. Release of native flavonoids as a result of the proteolysis reaction was observed. Different analytical methods such as size exclusion chromatography, HPLC-MS, and fluorescence spectroscopy (steady-state fluorescence, fluorescence anisotropy, fluorescence lifetimes) were used for a detailed characterization of this phenomenon. Flavonoids liberated from lupin globulin proteins as a result of pancreatin-catalyzed digestion were bound by γ-conglutin resistant to this enzyme. Two possible mechanisms of this interaction may be suggested: hydrogen bonding between oligosaccharide chains of glycoproteins and the sugar moieties of the flavonoid glycosides or electrostatic attraction between positively charged γ-conglutin and flavonoids partially ionized at pH 7.5.
Collapse
Affiliation(s)
- Jaroslaw Czubinski
- Department of Food Biochemistry and Analysis, Poznan University of Life Sciences, Poznan, Poland.
| | | | | | | | | | | | | |
Collapse
|
13
|
Sirtori E, Resta D, Arnoldi A, Savelkoul HF, Wichers HJ. Cross-reactivity between peanut and lupin proteins. Food Chem 2011. [DOI: 10.1016/j.foodchem.2010.11.073] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
14
|
Frøyland M, Ruffini PA, Thompson KM, Gedde-Dahl T, Fredriksen AB, Bogen B. Targeted idiotype-fusion DNA vaccines for human multiple myeloma: preclinical testing. Eur J Haematol 2011; 86:385-95. [PMID: 21332794 DOI: 10.1111/j.1600-0609.2011.01590.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
OBJECTIVES A homodimeric fusion DNA vaccine targeting idiotype (Id) to antigen-presenting cells (APC) induced robust tumor protection in a mouse model of multiple myeloma (MM). Similar Id vaccine molecules were generated for four patients with MM with three main objectives: (i) do the vaccine molecules induce bona fide anti-Id immune responses in mice? (ii) does targeting of the vaccine molecules to APC enhance immune responses? (iii) can anti-Id antibodies, generated as by-product in vaccinated mice, be used to establish sensitive assays for complete remission (CR) prior to patient vaccination? METHODS Chimeric vaccine molecules targeting patient Id to mouse major histocompatibility complex (MHC) class II molecules were genetically constructed for four patients with MM. RESULTS DNA vaccination of mice with chimeric vaccines targeting patient Id to mouse MHC class II molecules elicited antibodies specific for the patient's myeloma protein. Targeting MHC class II greatly enhanced anti-Id responses. Mouse anti-Id antibodies were used to establish myeloma protein-specific enzyme-linked immunosorbent assays (ELISAs) that were between 75 and 1500 times more sensitive than conventional serum protein electrophoresis and immunofixation. CONCLUSIONS These results pave the way for testing targeted DNA Id vaccines in patients in CR. Id- and patient-specific ELISA could be established affording evaluation of CR depth beyond current serological methods.
Collapse
Affiliation(s)
- Marianne Frøyland
- Centre for Immune Regulation, Institute of Immunology, University of Oslo and Rikshospitalet Oslo University Hospital Section of Hematology, Medical Department, Rikshospitalet Oslo University Hospital, Oslo, Norway
| | | | | | | | | | | |
Collapse
|
15
|
Nadal P, Canela N, Katakis I, O'Sullivan CK. Extraction, isolation, and characterization of globulin proteins from Lupinus albus. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2011; 59:2752-2758. [PMID: 21332201 DOI: 10.1021/jf104062d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Lupin has recently been added to the list of allergens requiring mandatory advisory labeling on foodstuffs sold in the European Union, and since December 2008, all products containing even trace amounts of lupin must be labeled correctly. Lupin globulins consist of two major globulins called α-conglutin (11S and "legumin-like") and β-conglutin (7S and "vicilin-like") and another additional two globulins, γ-conglutin and δ-conglutin, which are present in lower amounts. We report on a methodology to facilitate the extraction of each of these proteins using centrifugation and isolation by anion-exchange chromatography followed by size-exclusion chromatography. The isolated subunits were characterized using reducing and non-reducing polyacrylamide gel electrophoresis, western blotting, and peptide mass fingerprinting, all of which revealed that the individual protein subunits are highly pure and can be used as immunogens for the production of antibodies specific for each of the conglutin fractions, as well as standards, and the extraction protocol can be used for the selective extraction of each of the subunits from foodstuffs, thus facilitating a highly accurate determination of the lupin concentration. Furthermore, the subunits can be used to elucidate information regarding the toxicity of each of the subunits, by looking at their interaction with the IgE antibodies found in the serum of individuals allergic to lupin, providing critical information for the definition of the requirements of analytical assays for the detection of lupin in foodstuffs.
Collapse
Affiliation(s)
- Pedro Nadal
- Nanobiotechology and Bioanalysis Group, Departament d'Enginyeria Quimica, Universitat Rovira i Virgili, Avinguda Països Catalans 26, 43007 Tarragona, Spain
| | | | | | | |
Collapse
|
16
|
De Jong NW, Van Maaren MS, Vlieg-Boersta BJ, Dubois AEJ, De Groot H, Gerth van Wijk R. Sensitization to lupine flour: is it clinically relevant? Clin Exp Allergy 2010; 40:1571-7. [DOI: 10.1111/j.1365-2222.2010.03496.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
|
17
|
KÅos P, PorÄba E, Springer E, Lampart-Szczapa E, Józefiak AG. Identification of a Specific IgE-Binding Protein from Narrow-Leafed Lupin (L. Angustifolius) Seeds. J Food Sci 2010; 75:H39-43. [DOI: 10.1111/j.1750-3841.2009.01440.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
18
|
Dooper MM, Plassen C, Holden L, Moen LH, Namork E, Egaas E. Antibody binding to hazelnut (Corylus avellana) proteins: the effects of extraction procedure and hazelnut source. FOOD AGR IMMUNOL 2008. [DOI: 10.1080/09540100802243325] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Affiliation(s)
| | | | - Lise Holden
- a National Veterinary Institute , Oslo, Norway
| | | | - Ellen Namork
- b Norwegian Institute of Public Health , Oslo, Norway
| | | |
Collapse
|
19
|
Goggin DE, Mir G, Smith WB, Stuckey M, Smith PMC. Proteomic analysis of lupin seed proteins to identify conglutin Beta as an allergen, Lup an 1. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2008; 56:6370-6377. [PMID: 18620408 DOI: 10.1021/jf800840u] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Lupin products may be valuable as human foods because of their high protein content and potential anticholesterolemic properties. However, a small percentage of the population is allergic to lupin. In this study, we use in vitro IgE binding and mass spectrometry to identify conglutin beta, a major storage protein, as an allergen in seeds of Lupinus angustifolius and Lupinus albus. Purification of conglutin beta from L. angustifolius flour confirmed that serum IgE binds to this protein. Where IgE in sera recognized lupin proteins on Western blots, it recognized conglutin beta, suggesting this protein is a major allergen for lupin. The L. angustifolius conglutin beta allergen has been designated Lup an 1 by the International Union of Immunological Societies (IUIS) allergen nomenclature subcommittee.
Collapse
Affiliation(s)
- Danica E Goggin
- School of Plant Biology, University of Western Australia, 35 Stirling Highway, Crawley, Western Australia 6009, Australia
| | | | | | | | | |
Collapse
|
20
|
Holden L, Sletten GB, Lindvik H, Fæste CK, Dooper MM. Characterization of IgE Binding to Lupin, Peanut and Almond with Sera from Lupin-Allergic Patients. Int Arch Allergy Immunol 2008; 146:267-76. [DOI: 10.1159/000121461] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2007] [Accepted: 11/20/2007] [Indexed: 11/19/2022] Open
|