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Doré-Brabant G, Bouchard J, Marois L, Lavoie A. Pinus halepensis (Aleppo pine) nuts induced anaphylaxis: A case series. Pediatr Allergy Immunol 2023; 34:e14016. [PMID: 37747747 DOI: 10.1111/pai.14016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 08/15/2023] [Indexed: 09/26/2023]
Affiliation(s)
| | - Joëlle Bouchard
- Department of Allergy and Immunology, CHU de Québec - Université Laval, Québec City, Canada
| | - Louis Marois
- Department of Allergy and Immunology, CHU de Québec - Université Laval, Québec City, Canada
| | - Aubert Lavoie
- Department of Allergy and Immunology, CHU de Québec - Université Laval, Québec City, Canada
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2
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Mori F, Fazi C, Pertile R, Liccioli G, Sarti L, Paladini E, Alicandro T, Giovannini M, Barni S, Valleriani C. Pine nut allergy in children: A diagnostic test accuracy study. Clin Exp Allergy 2022; 52:901-903. [PMID: 35524547 DOI: 10.1111/cea.14173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 04/25/2022] [Accepted: 04/27/2022] [Indexed: 11/29/2022]
Affiliation(s)
- Francesca Mori
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Camilla Fazi
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Riccardo Pertile
- Department of Clinical and Evaluative Epidemiology, Trento Health Service, Trento, Italy
| | - Giulia Liccioli
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Lucrezia Sarti
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Erika Paladini
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Tatiana Alicandro
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy.,Division of Allergy and Clinical Immunology, Dermatology Unit, Surgical, Medical and Dental Department of Morphological Sciences Related to Transplant Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Mattia Giovannini
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Simona Barni
- Allergy Unit, Department of Pediatrics, Meyer Children's University Hospital, Florence, Italy
| | - Claudia Valleriani
- Section of Pediatrics, Department of Health Sciences, University of Florence and Meyer Children's Hospital, Florence, Italy
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Crespo JF, Bueno C, Villalba M, Monaci L, Cuadrado C, Novak N, Cabanillas B. Epitope mapping of the major allergen 2S albumin from pine nut. Food Chem 2020; 339:127895. [PMID: 32866706 DOI: 10.1016/j.foodchem.2020.127895] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Revised: 08/10/2020] [Accepted: 08/17/2020] [Indexed: 10/23/2022]
Abstract
The epitopes of the major allergen of pine nut, Pin p 1, were analyzed using a peptide library and sera from patients with clinical allergy to pine nut in order to deepen into the allergenic characteristics of Pin p 1. Analyses of epitope similarities and epitopes location in a 3D-model were also performed. Results showed that three main regions of Pin p 1 containing 5 epitopes were recognized by patient sera IgE. The epitopes of Pin p 1 had important similarities with epitopes of allergenic 2S albumins from peanut (Ara h 2 and 6) and Brazil nut (Ber e 1). The epitopes of Pin p 1 were found in α-helices and coils in the 3D protein structure. Interestingly, all epitopes were found to be well-exposed in the protein surface, which suggests facile access for IgE-binding to the structure of Pin p 1 which is known to be highly resistant.
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Affiliation(s)
- Jesus F Crespo
- Department of Allergy, Research Institute Hospital 12 de Octubre, Avenida de Córdoba s/n, 28041 Madrid, Spain
| | - Cristina Bueno
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Mayte Villalba
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Madrid, Spain
| | - Linda Monaci
- Institute of Sciences of Food Production, CNR-ISPA, 70126 Bari, Italy
| | - Carmen Cuadrado
- Department of Food Technology, National Institute of Agricultural, Food Research, and Technology (INIA), Ctra. La Coruña Km. 7.5, 28040 Madrid, Spain
| | - Natalija Novak
- Department of Dermatology and Allergy, University Hospital Bonn, Venusberg Campus 1, 53127 Bonn, Germany
| | - Beatriz Cabanillas
- Department of Allergy, Research Institute Hospital 12 de Octubre, Avenida de Córdoba s/n, 28041 Madrid, Spain.
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Lee E, Jeong K, Lee J, Lee S. Pine nut allergy in Korean children: Clinical characteristics and diagnostic values of specific IgE against pine nuts. Allergol Immunopathol (Madr) 2018; 46:247-252. [PMID: 29395441 DOI: 10.1016/j.aller.2017.09.027] [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: 05/15/2017] [Revised: 08/12/2017] [Accepted: 09/13/2017] [Indexed: 11/16/2022]
Abstract
BACKGROUND Hypersensitivity reactions to pine nuts in children have been occasionally encountered recently, although reports on pine nut allergy cases are rare worldwide. The study aimed to feature clinical and laboratory findings pertaining to pine nut allergy in Korean children. METHODS Forty-two subjects were enrolled through a retrospective review of medical records, from September 2010 to December 2015, at the Department of Pediatrics in Ajou University Hospital. The demographic profiles, clinical characteristics, and laboratory findings were evaluated. RESULTS Twenty-four patients showed immediate-type reactions after exposure to pine nuts (the allergic group), while the remaining 18 were atopic controls, who exhibited no allergic symptoms (the tolerant group). The median age of the subjects in the allergic group was three years. More than half of the subjects in this group experienced allergic symptoms within 5min, and seven of them experienced anaphylaxis. The median level of pine nut-specific immunoglobulin E (sIgE) in the allergic group (1.62kUA/L) was significantly higher (p=0.014) than that in the tolerant group (0.11kUA/L), with an optimal cut-off level of 0.40kUA/L (sensitivity, 66.7% and specificity, 77.8%). The positive decision point of pine nut-sIgE (specificity, 100%) to distinguish the allergic and tolerant groups was 2.84kUA/L. However, there was no difference in pine nut-sIgE levels between the anaphylaxis and non-anaphylaxis cases. CONCLUSION About 30% of children with pine nut allergy experienced anaphylaxis. The optimal cut-off level of pine nut-sIgE to distinguish the allergic and tolerant groups was 0.40kUA/L and the positive decision point was 2.84kUA/L.
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Affiliation(s)
- E Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Republic of Korea
| | - K Jeong
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Republic of Korea
| | - J Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Republic of Korea
| | - S Lee
- Department of Pediatrics, Ajou University School of Medicine, Suwon, Republic of Korea.
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Abstract
Tree nut (TN) allergy is common and often severe. It has become an important health concern as availability and consumption have increased. Prevalence varies by age and geographic region and appears to have increased in children. Accidental ingestion of TNs is common. Unfortunately, there is a lower likelihood of resolution of TN allergy, roughly 10%. TN-specific skin tests and serum immunoglobulin E levels can help aid in the diagnosis of TN allergy, but a careful medical history is important because a positive test in isolation is not typically diagnostic. Component-resolved diagnostic tests are being increasingly utilized and may improve accuracy. Management consists of strict avoidance of the causal nut(s) and prompt treatment of symptoms upon accidental exposure. A specific consideration with regard to the management of TN allergy is the decision to avoid all TNs or only the TNs to which a patient is clinically allergic. There are currently no data on the primary or secondary prevention of TN allergy. Treatment strategies are being evaluated.
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Affiliation(s)
- Tamar Weinberger
- The Elliot and Roslyn Jaffe Food Allergy Institute, Division of Allergy and Immunology, Kravis Children's Hospital, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Scott Sicherer
- The Elliot and Roslyn Jaffe Food Allergy Institute, Division of Allergy and Immunology, Kravis Children's Hospital, Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, NY, USA
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6
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Loewe V, Navarro-Cerrillo RM, Sánchez Lucas R, Ruiz Gómez FJ, Jorrín-Novo J. Variability studies of allochthonous stone pine (Pinus pinea L.) plantations in Chile through nut protein profiling. J Proteomics 2018; 175:95-104. [PMID: 29337283 DOI: 10.1016/j.jprot.2018.01.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Revised: 12/27/2017] [Accepted: 01/04/2018] [Indexed: 12/11/2022]
Abstract
Stone pine (Pinus pinea) is characterized by low differentiation of growth parameters, high phenotypic plasticity and low genetic variability; detecting its diversity in introduced Chilean populations is therefore relevant for conservation and breeding programs. Here, variability among allochthonous Stone pine populations in Chile was explored using electrophoresis-based proteomic analysis of pine nuts. Cones from 30 populations distributed along a climatic gradient in Chile were surveyed and sampled, and proteins were extracted from seed flour using the TCA-acetone precipitation protocol. Extracts were subjected to SDS-PAGE and 2-DE for protein resolution, gel images captured, and spot or bands intensity quantified and subjected to statistical analysis (ANOVA, unsupervised Hierarchical Analysis Clustering and PLS regression). Protein yield ranged among populations from 161.7 (North populations) to 298.7 (South populations) mg/g dry weight. A total of 50 bands were resolved by SDS-PAGE in the 6.5-200 kDa Mr. range, of which 17 showed quantitative or qualitative differences, with 12 proteins identified. Pine nut extracts from the most distant populations were analyzed by 2-DE and a total of 129 differential spots were observed, out of which 13 were proposed as putative protein markers of variability. Out of the 129 spots, 118 proteins were identified after MALDI-TOF/TOF analysis. Identified proteins were classified into two principal categories: reserve and stress related. We provide the first protein map of P. pinea nuts. The use of a proteomic approach was useful to detect variability of Stone pine across three Chilean macrozones, with correlations between protein profiles and geoclimatic parameters, suggesting a new approach to study the variability of this species. BIOLOGICAL SIGNIFICANCE This study presents the first protein map of Stone pine nuts, relevant for the advancement of protein characterization in pine nuts. Putative protein markers are proposed, evidencing that a proteomic approach may be useful to detect variability of Stone pine across Chilean macrozones, suggesting a new approach to study the variability of this species, which may also be extrapolated to other forest fruit species.
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Affiliation(s)
- V Loewe
- Chilean Forest Institute (INFOR), Chile.
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7
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Cao B, Fang L, Liu C, Min W, Liu J. Effects of high hydrostatic pressure on the functional and rheological properties of the protein fraction extracted from pine nuts. FOOD SCI TECHNOL INT 2017; 24:53-66. [DOI: 10.1177/1082013217726883] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Baiying Cao
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- College of Food Engineering, Jilin Engineering Normal University, Changchun, China
| | - Li Fang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory on Wheat and Corn Further Processing, Changchun, China
| | - Chunlei Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory on Wheat and Corn Further Processing, Changchun, China
| | - Weihong Min
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory on Wheat and Corn Further Processing, Changchun, China
| | - Jingsheng Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, China
- National Engineering Laboratory on Wheat and Corn Further Processing, Changchun, China
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8
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Identification, characterization, and initial epitope mapping of pine nut allergen Pin k 2. Food Res Int 2016; 90:268-274. [DOI: 10.1016/j.foodres.2016.10.043] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 10/23/2016] [Accepted: 10/24/2016] [Indexed: 11/20/2022]
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9
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Pin p 1 is a major allergen in pine nut and the first food allergen described in the plant group of gymnosperms. Food Chem 2016; 210:70-7. [PMID: 27211622 DOI: 10.1016/j.foodchem.2016.04.068] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Revised: 03/22/2016] [Accepted: 04/18/2016] [Indexed: 11/20/2022]
Abstract
This study aimed to report the complete sequence of a 2S albumin purified from pine nut and to analyze its allergenic properties. Individual recognition of this protein by serum IgE from pine nut-allergic patients was assessed. IgE cross-linking capacity was analyzed in a basophil activation test. Inhibition of IgE-binding and stability to heating was also assessed. The complete nucleotide sequence was obtained and a phylogenetic study was carried out. 2S albumin from pine nut (registered as Pin p 1.0101) was recognized by IgE of 75% of sera. The allergen was heat-stable and had a robust capacity to inhibit IgE-binding to whole pine nut extract. The IgE cross-linking capacity of Pin p 1 on basophils was also demonstrated. Despite the low homology of Pin p 1 sequence with other allergenic 2S albumins from angiosperms, Pin p 1 contains the typical skeleton of 8 cysteine residues, important for its α-helixes enriched structure.
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Sensitive and specific detection of pine nut (Pinus spp.) by real-time PCR in complex food products. Food Chem 2016; 194:980-5. [DOI: 10.1016/j.foodchem.2015.08.114] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 08/27/2015] [Accepted: 08/27/2015] [Indexed: 11/22/2022]
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Jin T, Wang Y, Chen YW, Albillos SM, Kothary MH, Fu TJ, Tankersley B, McHugh TH, Zhang YZ. Isolation and characterization of Korean pine (Pinus koraiensis) convicilin. PLANT PHYSIOLOGY AND BIOCHEMISTRY : PPB 2014; 80:97-104. [PMID: 24735553 DOI: 10.1016/j.plaphy.2014.03.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2013] [Accepted: 03/19/2014] [Indexed: 06/03/2023]
Abstract
A vicilin-like globulin seed storage protein, termed convicilin, was isolated for the first time from Korean pine (Pinus koraiensis). SDS-PAGE analysis revealed that Korean pine convicilin was post-translationally processed. The N-terminal peptide sequences of its components were determined. These peptides could be mapped to a protein translated from an embryo abundant transcript isolated in this study. Similar to vicilin, native convicilin appeared to be homotrimeric. Differential scanning calorimetry (DSC) analyses revealed that this protein is less resistant to thermal treatment than Korean pine vicilin. Its transition temperature was 75.57 °C compared with 84.13 °C for vicilin. The urea induced folding-unfolding equilibrium of pine convicilin monitored by intrinsic fluorescence could be interpreted in terms of a two-state model, with a Cm of 4.41 ± 0.15 M.
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Affiliation(s)
- Tengchuan Jin
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, IL 60616, USA.
| | - Yang Wang
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, IL 60616, USA
| | - Yu-Wei Chen
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, IL 60616, USA
| | - Silvia M Albillos
- Institute for Food Safety and Health, Illinois Institute of Technology, 6502 South Archer Road, Bedford Park, IL 60501, USA
| | - Mahendra H Kothary
- Center for Food Safety and Applied Nutrition, U.S. Food & Drug Administration, Laurel, MD 20708, USA
| | - Tong-Jen Fu
- Institute for Food Safety and Health, U.S. Food & Drug Administration, 6502 South Archer Road, Bedford Park, IL 60501, USA
| | | | - Tara H McHugh
- Healthy Processed Foods Research Unit, USDA-ARS, Western Regional Research Center, 800 Buchanan Street, Albany, CA 94710, USA
| | - Yu-Zhu Zhang
- Healthy Processed Foods Research Unit, USDA-ARS, Western Regional Research Center, 800 Buchanan Street, Albany, CA 94710, USA; Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, IL 60616, USA.
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Jin T, Wang Y, Chen YW, Fu TJ, Kothary MH, McHugh TH, Zhang Y. Crystal structure of Korean pine (Pinus koraiensis) 7S seed storage protein with copper ligands. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:222-8. [PMID: 24328105 DOI: 10.1021/jf4039887] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
The prevalence of food allergy has increased in recent years, and Korean pine vicilin is a potential food allergen. We have previously reported the crystallization of Korean pine vicilin purified from raw pine nut. Here we report the isolation of vicilin mRNA and the crystal structure of Korean pine vicilin at 2.40 Å resolution. The overall structure of pine nut vicilin is similar to the structures of other 7S seed storage proteins and consists of an N-terminal domain and a C-terminal domain. Each assumes a cupin fold, and they are symmetrically related about a pseudodyad axis. Three vicilin molecules form a doughnut-shaped trimer through head-to-tail association. Structure characterization of Korean pine nut vicilin unexpectedly showed that, in its native trimeric state, the vicilin has three copper ligands. Sequence alignments suggested that the copper-coordinating residues were conserved in winter squash, sesame, tomato, and several tree nuts, while they were not conserved in a number of legumes, including peanut and soybean. Additional studies are needed to assess whether the copper-coordinating property of vicilins has a biological function in the relevant plants. The nutritional value of this copper-coordinating protein in tree nuts and other edible seeds may be worth further investigations.
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Affiliation(s)
- Tengchuan Jin
- Department of Biology, Illinois Institute of Technology , 3101 South Dearborn Street, Chicago, Illinois 60616, United States
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