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Wangorsch A, Scheurer S, Blanca M, Blanca-Lopez N, Somoza ML, Martín-Pedraza L. Allergenic Properties and Molecular Characteristics of PR-1 Proteins. FRONTIERS IN ALLERGY 2022; 3:824717. [PMID: 35386656 PMCID: PMC8974740 DOI: 10.3389/falgy.2022.824717] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/03/2022] [Indexed: 11/17/2022] Open
Abstract
Only a small fraction of proteins in plants and animals are classified as allergens. The allergenic properties are frequently attributed to certain functional characteristics of the proteins, such as a role in the plant defense against biotic and abiotic stress, to achieve the systematic acquired resistance. In line with this, eight members out of 17 functional pathogenesis-related (PR) protein families have been characterized as allergens. The present review summarizes the molecular features and allergenic significance of allergens of the PR-1 family. Not many allergens have been identified as belonging to this protein family, with most of them having a pollen origin, like mugwort or Bermuda grass. Molecular and structural features of allergenic PR-1 proteins are discussed and attributed to their IgE-reactive properties, clinical manifestation, and cross-reactivity among different foods and inhalants.
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Affiliation(s)
| | | | - Miguel Blanca
- Foundation for Biomedical Research and Innovation, Hospital Universitario Infanta Leonor, Madrid, Spain
| | | | | | - Laura Martín-Pedraza
- Foundation for Biomedical Research and Innovation, Hospital Universitario Infanta Leonor, Madrid, Spain
- *Correspondence: Laura Martín-Pedraza
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Zhao L, Fu W, Gao B, Liu Y, Wu S, Chen Z, Zhang X, Wang H, Feng Y, Wang X, Wang H, Lan T, Liu M, Wang X, Sun Y, Luo F, Gadermaier G, Ferreira F, Versteeg SA, Akkerdaas JH, Wang D, Valenta R, Vrtala S, Gao Z, van Ree R. Variation in IgE binding potencies of seven Artemisia species depending on content of major allergens. Clin Transl Allergy 2020; 10:50. [PMID: 33292509 PMCID: PMC7677751 DOI: 10.1186/s13601-020-00354-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Artemisia weed pollen allergy is important in the northern hemisphere. While over 350 species of this genus have been recorded, there has been no full investigation into whether different species may affect the allergen diagnosis and treatment. This study aimed to evaluate the variations in amino acid sequences and the content of major allergens, and how these affect specific IgE binding capacity in representative Artemisia species. METHODS Six representative Artemisia species from China and Artemisia vulgaris from Europe were used to determine allergen amino acid sequences by transcriptome, gene sequencing and mass spectrometry of the purified allergen component proteins. Sandwich ELISAs were developed and applied for Art v 1, Art v 2 and Art v 3 allergen quantification in different species. Aqueous pollen extracts and purified allergen components were used to assess IgE binding by ELISA and ImmunoCAP with mugwort allergic patient serum pools and individual sera from five areas in China. RESULTS The Art v 1 and Art v 2 homologous allergen sequences in the seven Artemisia species were highly conserved. Art v 3 type allergens in A. annua and A. sieversiana were more divergent compared to A. argyi and A. vulgaris. The allergen content of Art v 1 group in the seven extracts ranged from 3.4% to 7.1%, that of Art v 2 from 1.0% to 3.6%, and Art v 3 from 0.3% to 10.5%. The highest IgE binding potency for most Chinese Artemisia allergy patients was with A. annua pollen extract, followed by A. vulgaris and A. argyi, with A. sieversiana significantly lower. Natural Art v 1-3 isoallergens from different species have almost equivalent IgE binding capacity in Artemisia allergic patients from China. CONCLUSION AND CLINICAL RELEVANCE There was high sequence similarity but different content of the three group allergens from different Artemisia species. Choice of Artemisia annua and A. argyi pollen source for diagnosis and immunotherapy is recommended in China.
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Affiliation(s)
- Lan Zhao
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China
| | - Wanyi Fu
- State Key Laboratory of Respiratory Disease, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, 510120, China
| | - Biyuan Gao
- Hangzhou Aileji Biotech Ltd, Hangzhou, China
| | - Yi Liu
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China
| | - Shandong Wu
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China
| | - Zhi Chen
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China
- School of Medicine, The First Affiliated Hospital, Zhejiang University, Hangzhou, 310013, China
| | - Xianqi Zhang
- Department of Allergy, School of Medicine, the Second Affiliated Hospital, Zhejiang University, Hangzhou, 310013, China
| | - Huiying Wang
- Department of Allergy, School of Medicine, the Second Affiliated Hospital, Zhejiang University, Hangzhou, 310013, China
| | - Yan Feng
- The First Affiliated Hospital, Shanxi Medical University, Taiyuan, Shanxi, 030012, China
| | - Xueyan Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Hongtian Wang
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Tianfei Lan
- Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Meiling Liu
- Department of Allergy, The Third People's Hospital of Datong, Datong, Shanxi, 037008, China
| | - Xuefeng Wang
- Department of Allergy, The Third People's Hospital of Datong, Datong, Shanxi, 037008, China
| | - Yuemei Sun
- Department of Allergy, Yu Huang Ding Hospital, Yan Tai, Yantai, China
| | - Fangmei Luo
- Department of Otorhinolaryngology, Qvjing Chinese Traditional Medicine Hospital, Yunnan, China
| | - Gabriele Gadermaier
- Department of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, Salzburg, 5020, Austria
| | - Fatima Ferreira
- Department of Biosciences, University of Salzburg, Hellbrunnerstrasse 34, Salzburg, 5020, Austria
| | - Serge A Versteeg
- Departments of Experimental Immunology and of Otorhinolaryngology, UMC, University Of Amsterdam, Meibergdreef 9, 1105 AZ , Amsterdam, The Netherlands
| | - Jaap H Akkerdaas
- Departments of Experimental Immunology and of Otorhinolaryngology, UMC, University Of Amsterdam, Meibergdreef 9, 1105 AZ , Amsterdam, The Netherlands
| | - Deyun Wang
- Department of Otolaryngology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore
| | - Rudolf Valenta
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
- Sechenov First Moscow State Medical University, Moscow, Russian Federation
- National Research Center - Institute of Immunology FMBA of Russia, Moscow, Russian Federation
- Karl Landsteiner University for Health Sciences, Krems, Austria
| | - Susanne Vrtala
- Division of Immunopathology, Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology and Immunology, Medical University of Vienna, Vienna, Austria
| | - Zhongshan Gao
- Allergy Research Center, Zhejiang University, Hangzhou, 310058, China.
- College of Agriculture and Biotechnology, Zhejiang University, Hangzhou, 310058, China.
- Departments of Experimental Immunology and of Otorhinolaryngology, UMC, University Of Amsterdam, Meibergdreef 9, 1105 AZ , Amsterdam, The Netherlands.
| | - Ronald van Ree
- Departments of Experimental Immunology and of Otorhinolaryngology, UMC, University Of Amsterdam, Meibergdreef 9, 1105 AZ , Amsterdam, The Netherlands
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Grewling Ł, Bogawski P, Kostecki Ł, Nowak M, Szymańska A, Frątczak A. Atmospheric exposure to the major Artemisia pollen allergen (Art v 1): Seasonality, impact of weather, and clinical implications. THE SCIENCE OF THE TOTAL ENVIRONMENT 2020; 713:136611. [PMID: 31958727 DOI: 10.1016/j.scitotenv.2020.136611] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/03/2020] [Accepted: 01/08/2020] [Indexed: 06/10/2023]
Abstract
Artemisia pollen grains are important aeroallergens worldwide. The amount of allergenic proteins produced by pollen, or pollen allergenicity, is regulated by both genes and the environment. As a result, even closely related plant taxa may release pollen with distinctly different allergen contents. Here, we determined the variability in atmospheric exposure to the major Artemisia pollen allergen, Art v 1, during the pollination seasons of two common species, i.e., A. vulgaris (early flowering species) and A. campestris (late flowering species), in Poznań, Poland (2013-2015). Artemisia pollen grains were collected using Hirst-type volumetric trap, while Art v 1 was collected by a two-stage cascade impactor (PM10 and PM>10 air fractions) and quantified by immunoenzymatic analysis. The results showed that daily Art v 1 levels correlated significantly with mean daily concentrations of Artemisia pollen (from r = 0.426 to r = 0.949, depending on air fraction and peak of the season). Significant differences were observed between 1) the median pollen allergenicity in different seasons (from 2.5 to 4.7 pg Art v 1/pollen) and 2) the median pollen allergenicity in different peak periods of the season (from 1.8 to 6.7 pg Art v 1/pollen). During the late peak (flowering of A. campestris), the median pollen allergenicity was significantly higher (on average by 63%, p < 0.05) than that during A. vulgaris flowering. The highest mean seasonal pollen allergenicity was observed during the wettest season, while the lowest was observed during the driest season (from July-August). In summary, our study showed distinct differences in Artemisia pollen allergenicity, that were not only related to daily and seasonal variability, which may exceed 800% and 80%, respectively but also noticeable when two common Artemisia species were compared. Therefore, we argue that variability in pollen allergenicity (both seasonal and species-specific) should be considered in future studies assessing pollen exposure.
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Affiliation(s)
- Łukasz Grewling
- Laboratory of Aeropalynology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.
| | - Paweł Bogawski
- Laboratory of Biological Spatial Information, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Łukasz Kostecki
- Laboratory of Aeropalynology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Małgorzata Nowak
- Laboratory of Aeropalynology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Agata Szymańska
- Laboratory of Aeropalynology, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
| | - Agata Frątczak
- Department of Plant Taxonomy, Faculty of Biology, Adam Mickiewicz University, Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland
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