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Wang X, Chen L, Ding J, Wang H, Wang X. Profiles of Birch Allergen Component Sensitization and Its Association with Pollen Food Allergy Syndrome in Northern China. J Asthma Allergy 2023; 16:1241-1250. [PMID: 38022747 PMCID: PMC10656847 DOI: 10.2147/jaa.s427764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 11/07/2023] [Indexed: 12/01/2023] Open
Abstract
Purpose To investigate the major allergen components associated with birch pollen allergy in northern China and elucidate clinical relevance to pollen food allergy syndrome (PFAS). Methods Fifty-eight patients were recruited for a cross-sectional study and categorized into two groups: PFAS group and non-PFAS group, as well as apple allergy group and non-apple allergy group. The sIgE levels of birch pollen and its components, namely Bet v 1, Bet v 2, Bet v 4, and Bet v 6, were analyzed. Results Among 58 participants, 44 individuals (75.9%) reported PFAS. 32 out of 44 (72.7%) participants reported apple allergy. Bet v 1 exhibited the highest sensitization rate at 82.8%, followed by Bet v 2 (29.3%) and Bet v 6 (1.7%). The combined sensitization rate for Bet v 1 and/or Bet v 2 was 93.1%. A total of 77.6% of the subjects demonstrated sensitization to single component, while 19.0% exhibited sensitization to two components. The sIgE levels of birch pollen and Bet v 1 were significantly elevated in PFAS group compared to non-PFAS group (p=0.001, p<0.001, respectively), as well as in apple-allergic and non-apple-allergic group (p<0.001, p<0.001, respectively). The optimal cut-off values for birch pollen and Bet v 1 sIgE were determined to be 7.09 kUA/L (with a sensitivity of 84.1% and specificity of 78.6%) and 5.11 kUA/L (with a sensitivity of 75.0% and specificity of 85.7%) when diagnosing PFAS. In terms of apple allergy, the optimal cut-off value were 9.40 kUA/L (with a sensitivity of 81.3% and specificity of 76.9%) and 6.53 kUA/L (with a sensitivity of 84.4% and specificity of 84.6%), respectively. Conclusion The predominant sensitization pattern is mono-sensitization to Bet v 1, but when considering immunotherapy, Bet v 2 should also be taken into account. Bet v 1 serves as a valuable biomarker for diagnosing PFAS and apple allergy.
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Affiliation(s)
- Xiaoyan Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China
- Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing, 100038, People’s Republic of China
| | - Lijia Chen
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China
| | - Jiaqi Ding
- Department of Otolaryngology, Qingdao Women and Children’s Hospital Affiliated to Qingdao University, Qingdao, Shandong, 0355729, People’s Republic of China
| | - Hongtian Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China
| | - Xueyan Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, People’s Republic of China
- Beijing Laboratory of Allergic Diseases, Beijing Municipal Education Commission, Beijing, 100038, People’s Republic of China
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Xu L, Luo W, Lu Y, Huang Z, Yu X, Liao C, Dai Y, Huang H, Gu W, Zheng P, Zhang X, Chen H, Huang L, Zheng J, Hao C, Sun B. A comprehensive analysis of the components of common weed pollen and related allergens in patients with allergic diseases in southern China. Mol Immunol 2022; 147:180-186. [PMID: 35633613 DOI: 10.1016/j.molimm.2022.05.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 05/04/2022] [Accepted: 05/16/2022] [Indexed: 10/18/2022]
Abstract
BACKGROUND Pollen allergens are vital contributors to allergic diseases. The frequency and coreactivity pattern of allergens are closely related to geographical distribution. OBJECTIVE In this study, we aimed to characterize the prevalence of the molecular components of the common weed pollen allergens, birch pollen, walnut, and cross-reactive carbohydrate determinant (CCD), as well as investigate the relationship between the allergens and CCD in Chinese pollen-sensitized patients with allergic diseases. METHODS Based on previous vegetation surveys, serum samples from 165 pollen-sensitized patients with allergic diseases in Guangdong Province in southern China were used to test 19 crude allergen extracts, their components, and CCD using component-resolved diagnosis (CRD). Moreover, the potential associations among CCD, allergens, and their components were described. RESULTS In the 165 samples, the most common sensitized allergens were goosefoot (43.0%), ragweed (40.6%), walnut (37.6%), walnut tree (37.6%), and mugwort (37.0%), followed by platane (35.2%), cocklebur (27.9%), and birch (24.2%). The positivity rate of CCD was 39.4%. Among the samples positive for mugwort, 11 (18.0%), 15 (24.6%), and 15 (24.6%) were positive for Art v 1, Art v 2, and Art v 3, respectively. Among the 67 patients sensitized to ragweed, only five (7.5%) were positive for Amb a 1. In the 40 patients sensitized to birch, Bet v 2 had the highest positivity rate (40.0%). There were 62 patients who were sensitized to walnut. Their components had a lower positivity rate (less than 15%). The hierarchical clustering and optimal scale analysis showed that Art v 4 and Bet v 2 were closely related, and 91.9% of CCD-positive samples were polysensitized. Meanwhile, Spearman's rank correlation method showed that CCD was closely correlated with the sensitization of crude allergen extracts, and there was a low correlation between CCD and allergen components. CCD was highly correlated with goosefoot, ragweed, and walnut trees (r>0.8). Moreover, there was a strong relationship between the levels of Jug r 3 and Art v 3 (r = 0.78; P < 0.001). CONCLUSIONS In southern China, the weed pollens (ragweed, cocklebur, and goosefoot) exhibited higher positivity rates in adults and had a stronger relationship with CCD but not with mugwort. The positivity rate of allergen components was not high. CCD-positive samples were always polysensitized.
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Affiliation(s)
- Lina Xu
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China
| | - Wenting Luo
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong 510120, China
| | - Yanhong Lu
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China
| | - Zhifeng Huang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong 510120, China
| | - Xingmei Yu
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China
| | - Chenxi Liao
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong 510120, China
| | - Yinfang Dai
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China
| | - Huimin Huang
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong 510120, China
| | - Wenjing Gu
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China
| | - Peiyan Zheng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong 510120, China
| | - Xinxing Zhang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China
| | - Hongling Chen
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China
| | - Li Huang
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China
| | - Jinping Zheng
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong 510120, China.
| | - Chuangli Hao
- Department of Respiratory Medicine, Children's Hospital of Soochow University, China.
| | - Baoqing Sun
- Department of Allergy and Clinical Immunology, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, Guangdong 510120, China.
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Baek HS, Jeong JW, Lee HB, Kwon JW. Molecular sensitization patterns in birch pollen-sensitized Korean children according to the presence of oral allergy syndrome. Medicine (Baltimore) 2020; 99:e19469. [PMID: 32150106 PMCID: PMC7478691 DOI: 10.1097/md.0000000000019469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
The profiles of sensitization based on component-resolved diagnosis (CRD) differ from region to region in populations sensitized to birch pollen. We investigated the endotypes of birch pollen-sensitized Korean children with allergic diseases using CRD and distinguished the endotypes of oral allergy syndrome (OAS) among them.Thirty-one birch pollen-sensitized children with allergic diseases were enrolled. Specific immunoglobulin E (IgE) to birch pollen and fruit including apple, peach, and kiwi were evaluated via skin prick tests and ImmunoCAP in all subjects. Sensitization profiles based on CRD were evaluated with the Immuno-solid-phase Allergen Chip for birch pollen-sensitization using birch pollen components (Bet v 1, Bet v 2, and Bet v 4), and for OAS using the allergen families pathogenesis-related class 10 proteins (PR-10), lipid transfer proteins, and profilin.All patients (n = 13) with OAS were sensitive to Bet v 1. However, 61% (11/18) of patients without OAS were sensitized to Bet v 1. The level of specific IgE to Bet v 1 was higher in patients with OAS than in those without OAS. All birch pollen-sensitized Korean children with OAS were sensitized to PR-10, and 69% (9/13) of them were mono-sensitized to PR-10. Among patients without OAS, 33% (6/18) were not sensitized to any of the allergen families.Birch pollen-sensitized Korean children with allergic diseases showed unique patterns of sensitization to Bet v 1, Bet v 2, and Bet v 4, and the sensitization profiles based on CRD were totally different according to the presence of OAS.
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Affiliation(s)
- Hey-Sung Baek
- Department of Pediatrics, Hallym University Kangdong Sacred Heart Hospital, Seoul
| | | | - Ha-Baik Lee
- Department of Pediatrics, Hanyang University Hospital, Seoul
| | - Jae-Woo Kwon
- Division of Allergy and Clinical Immunology, Kangwon National University School of Medicine, Chuncheon, Republic of Korea
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Barreto LR, Barreto T, Melo S, Pungartnik C, Brendel M. Sensitivity of Yeast Mutants Deficient in Mitochondrial or Vacuolar ABC Transporters to Pathogenesis-Related Protein TcPR-10 of Theobroma cacao. BIOLOGY 2018; 7:biology7020035. [PMID: 29899284 PMCID: PMC6022951 DOI: 10.3390/biology7020035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2017] [Revised: 10/24/2017] [Accepted: 11/01/2017] [Indexed: 11/29/2022]
Abstract
Pathogenesis-related proteins (PRs) are induced in plants after infection by pathogens and/or abiotic stress. Among these proteins, the family 10 (PR-10) influences the biosynthesis of secondary metabolites and shows antimicrobial ribonuclease activity. TcPR-10p (Pathogenesis-related Protein 10 of Theobroma cacao) was isolated from resistant and susceptible Moniliophthora perniciosa cacao cultivars. Cell survival with Saccharomyces cerevisiae mutant lines deficient in ATP-binding cassette (ABC) transporter proteins indicated the influence on resistance to TcPR-10p. Proteins of the ABC transport type are considered important in the process of resistance to antimicrobials and toxins. Thus, the objective of this work was to observe the sensitivity of ABC transporter yeast mutants in the presence of the TcPR-10p. Chronic exposure of S. cerevisiae mitochondrial (BYatm1Δ and BYmdl1Δ) and vacuole (BYnft1Δ, BYvmr1Δ, BYybt1Δ, BYycf1Δ and BYbpt1Δ) ABC transporter mutants to TcPR-10p (3 μg/mL, 0, 6, 12 and 24 h) was performed. Two TcPR-10p sensitive strains (BYmdl1Δ and BYnft1Δ) were submitted to a fluorescence test with the fluorogenic dihydroethidium (DHE), to visualize the presence of oxidative stress in the cells. Oxidative stress-increased sensitivity was confirmed by flow cytometry indicating induced cell death either via apoptosis or necrosis. This yeast data combined with previous data of literature (of M. perniciosa sensitivity to TcPR-10p) show that increased sensitivity to TcPR-10p in these mutants could be due to the TcPR10p-generated higher levels of intracellular reactive oxygen species (ROS), leading to increased cell death either via necrosis or apoptosis.
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Affiliation(s)
- Louise R Barreto
- Departamento de Ciências Biológicas, Laboratório de Biologia de Fungos, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16, Ilhéus, Bahia, CEP 42665-000, Brazil.
| | - Thayná Barreto
- Departamento de Ciências Biológicas, Laboratório de Biologia de Fungos, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16, Ilhéus, Bahia, CEP 42665-000, Brazil.
| | - Sonia Melo
- Departamento de Ciências Biológicas, Laboratório de Biologia de Fungos, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16, Ilhéus, Bahia, CEP 42665-000, Brazil.
| | - Cristina Pungartnik
- Departamento de Ciências Biológicas, Laboratório de Biologia de Fungos, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16, Ilhéus, Bahia, CEP 42665-000, Brazil.
| | - Martin Brendel
- Departamento de Ciências Biológicas, Laboratório de Biologia de Fungos, Centro de Biotecnologia e Genética, Universidade Estadual de Santa Cruz (UESC), Rodovia Jorge Amado, km 16, Ilhéus, Bahia, CEP 42665-000, Brazil.
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Clinical benefit of component-resolved diagnosis in Japanese birch-allergic patients with a convincing history of apple or peach allergy. Auris Nasus Larynx 2017; 44:442-446. [DOI: 10.1016/j.anl.2016.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 08/31/2016] [Accepted: 10/06/2016] [Indexed: 11/17/2022]
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Zimmer J, Döring S, Strecker D, Trösemeier JH, Hanschmann KM, Führer F, Vieths S, Kaul S. Minor allergen patterns in birch pollen allergen products-A question of pollen? Clin Exp Allergy 2017; 47:1079-1091. [PMID: 28493312 DOI: 10.1111/cea.12955] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Revised: 03/29/2017] [Accepted: 04/19/2017] [Indexed: 11/27/2022]
Abstract
BACKGROUND Contrary to the scientific differentiation between major and minor allergens, the regulatory framework controlling allergen products in the EU distinguishes relevant and non-relevant allergens. Given the lack of knowledge on their clinical relevance, minor allergens are usually not controlled by allergen product specifications. Especially, in birch pollen (BP) allergen products, minor allergens are commonly disregarded. OBJECTIVES To quantify three minor allergens in BP allergen products from different manufacturers and to assess the influence of the utilized BP on minor allergen patterns. METHODS Apart from common quality parameters such as Bet v 1 content, Bet v 4, Bet v 6 and Bet v 7 were quantified in 70 BP allergen product batches from six manufacturers, using ELISA systems developed in-house. Batch-to-batch variability was checked for agreement with a variability margin of 50%-200% from mean of the given batches for individual allergen content. Subsequently, minor allergen patterns were generated via multidimensional scaling and related to information on the pollen lots used in production of the respective product batches. RESULTS Like the already established Bet v 4 ELISA, the ELISA systems for quantification of Bet v 6 and Bet v 7 were successfully validated. Differences in minor allergen content between products and batch-to-batch consistency were observed. Correlations between minor and major allergen content were low to moderate. About 20% of batches exceeded the variability margin for at least one minor allergen. Interestingly, these fluctuations could not in all cases be linked to the use of certain BP lots. CONCLUSIONS AND CLINICAL RELEVANCE The impact of the observed minor allergen variability on safety and efficacy of BP allergen products can currently not be estimated. As the described differences could only in few cases be related to the used pollen lots, it is evident that additional factors influence minor allergens in BP allergen products.
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Affiliation(s)
- J Zimmer
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - S Döring
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - D Strecker
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - J H Trösemeier
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany
| | - K M Hanschmann
- Division of Microbiology, Paul-Ehrlich-Institut, Langen, Germany
| | - F Führer
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - S Vieths
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
| | - S Kaul
- Division of Allergology, Paul-Ehrlich-Institut, Langen, Germany
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Yamamoto T, Asakura K, Shirasaki H, Himi T. Oral Allergy Syndrome Following Soy Milk Ingestion in Patients with Birch Pollen Allergy. ACTA ACUST UNITED AC 2015; 118:1124-32. [DOI: 10.3950/jibiinkoka.118.1124] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
| | - Kohji Asakura
- Department of Otolaryngology, Muroran Municipal Hospital
| | - Hideaki Shirasaki
- Department of Otolaryngology, School of Medicine, Sapporo Medical University
| | - Tetsuo Himi
- Department of Otolaryngology, School of Medicine, Sapporo Medical University
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Yamamoto T, Asakura K, Shirasaki H, Himi T. [Relationship between IgE antibodies to recombinant allergens rBet v 1 and rBet v 2 and food causing oral allergy syndrome in cases of birch-pollen allergy]. NIHON JIBIINKOKA GAKKAI KAIHO 2010; 113:661-669. [PMID: 20845708 DOI: 10.3950/jibiinkoka.113.661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
BACKGROUND Persons allergic to birch pollen often report oral and pharyngeal hypersensitivity to fruit and vegetables, such as apples and peaches due to immunological cross-reactivity, or oral allergy syndrome (OAS) sometimes accompanied by systemic reaction. Such cross-reactive antigen reactions involve Bet v 1, the main birch-pollen allergen, and Bet v 2, birch-pollen profilin. We evaluated the food/antigen relationship. METHODS Subjects interviewed numbered 60-40 women and 20 men aged 12 to 70 (mean age: 35 years)-suffering OAS episodes and having IgE birch-pollen antibodies. Using CAP scoring we examined IgE antibodies to recombinant Bet v 1 (rBet v 1), recombinant Bet v 2 (rBet v 2), and recombinant Pru p 3 (rPru p 3) a peach lipid transfer protein (LTP). A CAP score of 0.35 or more was considered positive. We evaluated the relationship between recombinant allergens and 9 fruit often involving OAS--apple, peach, cherry, kiwi, pear, melon, plum, strawberry, and watermelon-based on subjects' reports. RESULTS Of the 60, all (100%) were rBet v 1-positive, 9 (15%) rBet v 2-positive, and none (0%) rPru p 3-positive. Rose-family fruit-apples, peaches, cherries, pears, plums, and strawberries-often caused OAS regardless of positive or negative rBet v 2 CAP and were associated with rBet v 1. In contrast, more of those who were rBet v 2 CAP-positive had OAS to non-rose-family fruit-melon and watermelon-than those rBet v 2-negative. In rose-family and non-rose-family classification of the 9 fruit, cluster analysis and kappa statistics showed non-rose-family melon, watermelon, and kiwi to be associated with rBet v 2, as were grass and mugwort pollen allergies. CONCLUSION Bet v 1 is associated with OAS due to rose-family fruit and Bet v 2 with OAS due to non-rose-family fruit.
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Yamamoto T, Asakura K, Shirasaki H, Himi T. Clustering of Food Causing Oral Allergy Syndrome in Patients with Birch Pollen Allergy. ACTA ACUST UNITED AC 2008; 111:588-93. [DOI: 10.3950/jibiinkoka.111.588] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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