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Werchan M, Werchan B, Bogawski P, Mousavi F, Metz M, Bergmann KC. An emerging aeroallergen in Europe: Tree-of-Heaven (Ailanthus altissima [Mill.] Swingle) inventory and pollen concentrations - Taking a metropolitan region in Germany as an example. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 930:172519. [PMID: 38636870 DOI: 10.1016/j.scitotenv.2024.172519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2023] [Revised: 03/28/2024] [Accepted: 04/14/2024] [Indexed: 04/20/2024]
Abstract
Urban areas are often hotspots for the dissemination of non-native (invasive) plant species, some of which release (potentially) allergenic pollen. Given the high population density in cities, a considerable number of people can be regularly and potentially intensively exposed to the pollen from these plants. This study delves into the Tree-of-Heaven (Ailanthus altissima, [Mill.] Swingle), native to East Asia, which is known for its high invasiveness in temperate regions worldwide, particularly favoring urban colonization. This study explores the botanical and aerobiological dimensions of this species using the central European metropolitan region of Berlin, Germany, as a case study, and provides a comprehensive global overview of allergological insights. The number of Ailanthus trees decreased markedly from the center to the periphery of Berlin City, following a temperature gradient. The same spatial trend was mirrored by airborne Ailanthus pollen concentrations measured with volumetric spore traps (Hirst-type) at five sites using seven traps. Ailanthus pollen was most abundant around midday and in the afternoon, with concentrations tenfold higher at street level than at roof level. The Ailanthus flowering period in June and July coincided well with the pollen season. To the best of our knowledge this is the first study to investigate Ailanthus altissima pollen production. On average, 5539 pollen grains were found per anther. A literature review on the allergy relevance of Ailanthus altissima pollen indicates the high allergenic potential of pollen from this species. Considering the anticipated expansion of suitable habitats for Ailanthus owing to global warming and the allergological significance of its pollen, it is recommended to include Ailanthus pollen in routine pollen monitoring, particularly in areas colonized by this species. This comprehensive study provides new insights into a pollen taxon whose significance as an emerging aeroallergen should be factored into plant selection and greenspace management in all temperate regions.
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Affiliation(s)
- Matthias Werchan
- German Pollen Information Service Foundation, Berlin, Germany; Institute of Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany.
| | - Barbora Werchan
- German Pollen Information Service Foundation, Berlin, Germany
| | - Paweł Bogawski
- Adam Mickiewicz University, Poznań, Faculty of Biology, Department of Systematic and Environmental Botany, Poznań, Poland
| | - Fateme Mousavi
- Air and Space Physiology Research Group, Aerospace Research Institute, Ministry of Science Research and Technology, Tehran, Iran
| | - Martin Metz
- Institute of Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany; Fraunhofer Institute for Translational Medicine and Pharmacology ITMP, Immunology and Allergology, Berlin, Germany
| | - Karl-Christian Bergmann
- German Pollen Information Service Foundation, Berlin, Germany; Institute of Allergology, Charité - Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Berlin, Germany
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Grewling Ł, Ribeiro H, Antunes C, Apangu GP, Çelenk S, Costa A, Eguiluz-Gracia I, Galveias A, Gonzalez Roldan N, Lika M, Magyar D, Martinez-Bracero M, Ørby P, O'Connor D, Penha AM, Pereira S, Pérez-Badia R, Rodinkova V, Xhetani M, Šauliene I, Skjøth CA. Outdoor airborne allergens: Characterization, behavior and monitoring in Europe. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 905:167042. [PMID: 37709071 DOI: 10.1016/j.scitotenv.2023.167042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 08/23/2023] [Accepted: 09/11/2023] [Indexed: 09/16/2023]
Abstract
Aeroallergens or inhalant allergens, are proteins dispersed through the air and have the potential to induce allergic conditions such as rhinitis, conjunctivitis, and asthma. Outdoor aeroallergens are found predominantly in pollen grains and fungal spores, which are allergen carriers. Aeroallergens from pollen and fungi have seasonal emission patterns that correlate with plant pollination and fungal sporulation and are strongly associated with atmospheric weather conditions. They are released when allergen carriers come in contact with the respiratory system, e.g. the nasal mucosa. In addition, due to the rupture of allergen carriers, airborne allergen molecules may be released directly into the air in the form of micronic and submicronic particles (cytoplasmic debris, cell wall fragments, droplets etc.) or adhered onto other airborne particulate matter. Therefore, aeroallergen detection strategies must consider, in addition to the allergen carriers, the allergen molecules themselves. This review article aims to present the current knowledge on inhalant allergens in the outdoor environment, their structure, localization, and factors affecting their production, transformation, release or degradation. In addition, methods for collecting and quantifying aeroallergens are listed and thoroughly discussed. Finally, the knowledge gaps, challenges and implications associated with aeroallergen analysis are described.
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Affiliation(s)
- Łukasz Grewling
- Laboratory of Aerobiology, Department of Systematic and Environmental Botany, Faculty of Biology, Adam Mickiewicz University, Poznań, Poland.
| | - Helena Ribeiro
- Department of Geosciences, Environment and Spatial Plannings of the Faculty of Sciences, University of Porto and Earth Sciences Institute (ICT), Portugal
| | - Celia Antunes
- Department of Medical and Health Sciences, School of Health and Human Development & ICT-Institute of Earth Sciences, IIFA, University of Évora, 7000-671 Évora, Portugal
| | | | - Sevcan Çelenk
- Department of Biology, Faculty of Arts and Sciences, Bursa Uludag University, Bursa, Turkey
| | - Ana Costa
- Department of Medical and Health Sciences, School of Health and Human Development & ICT-Institute of Earth Sciences, IIFA, University of Évora, 7000-671 Évora, Portugal
| | - Ibon Eguiluz-Gracia
- Allergy Unit, Hospital Regional Universitario de Malaga, Malaga 29010, Spain
| | - Ana Galveias
- Department of Medical and Health Sciences, School of Health and Human Development & ICT-Institute of Earth Sciences, IIFA, University of Évora, 7000-671 Évora, Portugal
| | - Nestor Gonzalez Roldan
- Group of Biofunctional Metabolites and Structures, Priority Research Area Chronic Lung Diseases, Research Center Borstel, Leibniz Lung Center, Member of the German Center for Lung Research (DZL), Airway Research Center North (ARCN), Borstel, Germany; Pollen Laboratory, Department of Biological and Environmental Sciences, University of Gothenburg, Gothenburg, Sweden
| | - Mirela Lika
- Department of Biology, Faculty of Natural Sciences, University of Tirana, Tirana, Albania
| | - Donát Magyar
- National Center for Public Health and Pharmacy, Budapest, Hungary
| | | | - Pia Ørby
- Department of Environmental Science, Danish Big Data Centre for Environment and Health (BERTHA) Aarhus University, Aarhus, Denmark
| | - David O'Connor
- School of Chemical Sciences, Dublin City University, Dublin D09 E432, Ireland
| | - Alexandra Marchã Penha
- Water Laboratory, School of Sciences and Technology, ICT-Institute of Earth Sciences, IIFA, University of Évora. 7000-671 Évora, Portugal
| | - Sónia Pereira
- Department of Geosciences, Environment and Spatial Plannings of the Faculty of Sciences, University of Porto and Earth Sciences Institute (ICT), Portugal
| | - Rosa Pérez-Badia
- Institute of Environmental Sciences, University of Castilla-La Mancha, 45071 Toledo, Spain
| | | | - Merita Xhetani
- Department of Biology, Faculty of Natural Sciences, University of Tirana, Tirana, Albania
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Delgado J, Navarro A, Álvarez-Gutiérrez FJ, Cisneros C, Domínguez-Ortega J. [Unmet Needs in Severe Allergic Asthma]. OPEN RESPIRATORY ARCHIVES 2023; 5:100282. [PMID: 38053757 PMCID: PMC10694599 DOI: 10.1016/j.opresp.2023.100282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/19/2023] [Indexed: 12/07/2023] Open
Abstract
Severe asthma affects 3%-10% of the world's population, according to estimates by the Global Initiative for ASTHMA (GINA). Allergic asthma is one of the most common phenotypes of severe asthma and it is characterized by allergen-induced type 2 inflammation in which immunoglobulin E (IgE) is a key mediator, making it an important therapeutic target. The introduction of targeted biological therapies or treatments has entered the management for severe asthma in the era of precision medicine, and the goal of treatment is clinical remission of the disease. There is a significant percentage of patients with severe allergic asthma who do not respond to treatments and whose symptoms are not controlled. In this paper, a group of experts in the management of severe allergic asthma reviewed and evaluated the most relevant evidence regarding the pathophysiology and phenotypes of severe allergic asthma, the role of IgE in allergic inflammation, allergen identification, techniques, biomarkers and diagnostic challenges, available treatments and strategies for disease management, with a special focus on biological treatments. From this review, recommendations were developed and validated through a Delphi consensus process with the aim of offering improvements in the management of severe allergic asthma to the professionals involved and identifying the unmet needs in the management of this pathology.
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Affiliation(s)
- Julio Delgado
- Unidad de Gestión Clínica, Alergología, Hospital Virgen Macarena, Sevilla, España
| | - Ana Navarro
- Unidad de Gestión Clínica, Alergología, Hospital Virgen Macarena, Sevilla, España
| | | | - Carolina Cisneros
- Servicio de Neumología, Hospital Universitario de La Princesa, Madrid, España
| | - Javier Domínguez-Ortega
- Servicio de Alergia, Hospital Universitario La Paz, Instituto de Investigación IDiPAZ, Madrid, España
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4
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Stawoska I, Myszkowska D, Oliwa J, Skoczowski A, Wesełucha-Birczyńska A, Saja-Garbarz D, Ziemianin M. Air pollution in the places of Betula pendula growth and development changes the physicochemical properties and the main allergen content of its pollen. PLoS One 2023; 18:e0279826. [PMID: 36696393 PMCID: PMC9876359 DOI: 10.1371/journal.pone.0279826] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 12/14/2022] [Indexed: 01/26/2023] Open
Abstract
Pollen allergy becomes an increasing problem for humans, especially in the regions, where the air pollution level increases due to the traffic and urbanization. These factors may also affect the physiological activity of plants, causing changes in pollen allergenicity. The aim of the study was to estimate the influence of air pollutants on the chemical composition of birch pollen and the secondary structures of the Bet v1 protein. The research was conducted in seven locations in Malopolska region, South of Poland of a different pollution level. We have found slight fluctuations in the values of parameters describing the photosynthetic light reactions, similar spectra of leaf reflectance and the negligible differences in the discrimination values of the δ13C carbon isotope were found. The obtained results show a minor effect of a degree of pollution on the physiological condition B. pendula specimen. On the other hand, mean Bet v1 concentration measured in pollen samples collected in Kraków was significantly higher than in less polluted places (p = .03886), while FT-Raman spectra showed the most distinct variations in the wavenumbers characteristic of proteins. Pollen collected at sites of the increased NOx and PM concentration, show the highest percentage values of potential aggregated forms and antiparallel β-sheets in the expense of α-helix, presenting a substantial impact on chemical compounds of pollen, Bet v1 concentration and on formation of the secondary structure of proteins, what can influence their functions.
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Affiliation(s)
- Iwona Stawoska
- Institute of Biology, Pedagogical University of Krakow, Kraków, Poland
| | - Dorota Myszkowska
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, Kraków, Poland
| | - Jakub Oliwa
- Institute of Biology, Pedagogical University of Krakow, Kraków, Poland
| | | | | | - Diana Saja-Garbarz
- The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków, Poland
| | - Monika Ziemianin
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, Kraków, Poland
- * E-mail:
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5
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Jiao YX, Song LB, Xu ZQ, Zhu DX, Yang YS, Tian M, Sun JL, Wei JF. Purification and characterization of enolase as a novel allergen in Platanus acerifolia pollen. Int Immunopharmacol 2022; 113:109313. [DOI: 10.1016/j.intimp.2022.109313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/11/2022] [Accepted: 10/03/2022] [Indexed: 11/05/2022]
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6
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Prenzel F, Treudler R, Lipek T, vom Hove M, Kage P, Kuhs S, Kaiser T, Bastl M, Bumberger J, Genuneit J, Hornick T, Klotz S, Zarnowski J, Boege M, Zebralla V, Simon JC, Dunker S. Invasive Growth of Ailanthus altissima Trees is Associated with a High Rate of Sensitization in Atopic Patients. J Asthma Allergy 2022; 15:1217-1226. [PMID: 36071746 PMCID: PMC9443999 DOI: 10.2147/jaa.s373177] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Accepted: 08/15/2022] [Indexed: 11/23/2022] Open
Affiliation(s)
- Freerk Prenzel
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Pediatrics, Leipzig, Germany
| | - Regina Treudler
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Dermatology, Venerology and Allergy, Leipzig, Germany
| | - Tobias Lipek
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Pediatrics, Leipzig, Germany
| | - Maike vom Hove
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Pediatrics, Leipzig, Germany
| | - Paula Kage
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Dermatology, Venerology and Allergy, Leipzig, Germany
| | - Simone Kuhs
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, Leipzig, Germany
| | - Thorsten Kaiser
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Institute of Laboratory Medicine, Clinical Chemistry and Molecular Diagnostics, Leipzig, Germany
| | - Maximilian Bastl
- Medical University of Vienna, Department of Otorhinolaryngology, Vienna, Austria
| | - Jan Bumberger
- Helmholtz-Centre for Environmental Research (UFZ), Department Monitoring and Exploration Technologies, Leipzig, Germany
- Helmholtz-Centre for Environmental Research (UFZ), Research Data Management, Leipzig, Germany
- German Centre for Integrative Biodiversity Research (iDiv) Halle, Jena, Leipzig, Germany
| | - Jon Genuneit
- Pediatric Epidemiology, Department of Pediatrics, Medical Faculty, Leipzig University, Leipzig, Germany
- German Center for Child and Youth Health, Leipzig/ Dresden, Dresden, Germany
| | - Thomas Hornick
- German Centre for Integrative Biodiversity Research (iDiv) Halle, Jena, Leipzig, Germany
- Helmholtz-Centre for Environmental Research (UFZ), Department Physiological Diversity, Leipzig, Germany
| | - Stefan Klotz
- German Centre for Integrative Biodiversity Research (iDiv) Halle, Jena, Leipzig, Germany
- Helmholtz-Centre for Environmental Research (UFZ), Department Community Ecology, Halle, Germany
| | - Julia Zarnowski
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Dermatology, Venerology and Allergy, Leipzig, Germany
| | - Maren Boege
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Otorhinolaryngology, Head and Neck Surgery, Leipzig, Germany
| | - Veit Zebralla
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Otorhinolaryngology, Head and Neck Surgery, Leipzig, Germany
| | - Jan-Christoph Simon
- Leipziger Interdisciplinary Center for Allergy (LICA), Comprehensive Allergy Center, Leipzig, Germany
- University of Leipzig, Medical Center, Department of Dermatology, Venerology and Allergy, Leipzig, Germany
| | - Susanne Dunker
- German Centre for Integrative Biodiversity Research (iDiv) Halle, Jena, Leipzig, Germany
- Helmholtz-Centre for Environmental Research (UFZ), Department Physiological Diversity, Leipzig, Germany
- Correspondence: Susanne Dunker, Helmholtz Centre for Environmental Research – UFZ, Leipzig, Germany, Tel +49 341 9733170, Email
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Ščevková J, Vašková Z, Sepšiová R, Kováč J. Seasonal variation in the allergenic potency of airborne grass pollen in Bratislava (Slovakia) urban environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:62583-62592. [PMID: 34212332 PMCID: PMC8248954 DOI: 10.1007/s11356-021-15179-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Accepted: 06/24/2021] [Indexed: 06/01/2023]
Abstract
The Phl p 5 allergen of the plant species Phleum pratense is considered one of the most crucial grass pollen allergenic molecules inducing respiratory allergies. In this study, we evaluated seasonal variation in the concentration of both grass pollen and Phl p 5 allergens as well as the ratio allergen/pollen (pollen potency) in the air of Bratislava during two consecutive years, 2019-2020. These 2 years differed in terms of air pollution, as COVID-19 lockdown in spring 2020 considerably improved air quality in the study area. Air samples were collected using a Hirst-type sampler for pollen detection and the cyclone sampler for aeroallergen detection. In 2020, we observed 80.3% higher seasonal pollen integral, probably associated with the longer pollen season duration, however, 43.6% lower mean daily pollen potency than in 2019. The mean daily pollen value was 37.5% higher in 2020 than in the previous year, while the mean daily allergen value was 14.9% lower in 2020. To evaluate the relationship between the amount of pollen or allergen in the air and selected meteorological factors and air pollution parameters, we used multiple regression analysis. Regarding weather factors, precipitation and relative humidity were significantly associated with pollen and/or allergen concentration, though these associations were negative. Atmospheric pollutants, especially CO, NO2 and O3 were significantly associated with pollen and/or allergen levels. The associations with CO and O3 were positive, while the association with NO2 was negative. Our results indicate that for grasses, an air pollutant that has a significant positive relationship to the ratio of allergen/pollen is nitrogen dioxide.
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Affiliation(s)
- Jana Ščevková
- Faculty of Natural Sciences, Department of Botany, Comenius University, Révová 39, 811 02, Bratislava, Slovakia.
| | - Zuzana Vašková
- Faculty of Natural Sciences, Department of Botany, Comenius University, Révová 39, 811 02, Bratislava, Slovakia
| | - Regina Sepšiová
- Faculty of Natural Sciences, Department of Genetics, Comenius University, Ilkovičova 6, 842 48, Bratislava, Slovakia
| | - Jozef Kováč
- Faculty of Mathematics, Physics and Informatics, Department of Applied Mathematics and Statistics, Comenius University, Mlynská dolina, 842 48, Bratislava, Slovakia
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8
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Ziemianin M, Waga J, Czarnobilska E, Myszkowska D. Changes in qualitative and quantitative traits of birch (Betula pendula) pollen allergenic proteins in relation to the pollution contamination. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:39952-39965. [PMID: 33765259 PMCID: PMC8310481 DOI: 10.1007/s11356-021-13483-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 03/11/2021] [Indexed: 05/17/2023]
Abstract
Birch (Betula pendula) pollen causes inhalant allergy in about 20% of human population in Europe, most of which is sensitive to the main birch allergen, Bet v1. The aim of the study was to find out (i) whether and how the analysed birch individuals differ in regard to composition of individual subunits of pollen proteins and to protein content in these subunits; (ii) whether the level of particulate matter relates to concentration of Bet v1 allergen. Study was performed in Southern Poland, in 2017-2019. Pollen material was collected at 20 sites, of highly or less polluted areas. Protein composition was analysed by SDS-PAGE, while the concentration of Bet v1 was evaluated by ELISA. The obtained results were estimated at the background of the particulate matter (PM10) level and the birch pollen seasons in Kraków. The electrophoregrams of pollen samples collected at different sites showed huge differences in staining intensities of individual protein subunits, also among important birch allergens: Bet v1, Bet v2, Bet v6 and Bet v7. The level of Bet v1 was significantly higher in the pollen samples collected at the more polluted sites. While the birch pollen allergenic potential is determined, the both pollen exposure and the content of the main allergenic components should be considered, as factors causing immunological response and clinical symptoms manifestation in sensitive individuals.
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Affiliation(s)
- Monika Ziemianin
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, Botaniczna 3, 31-503, Kraków, Poland
| | - Jacek Waga
- Department of Plant Breeding, Physiology, and Seed Science, University of Agriculture in Kraków, Podłużna 3, 30-239, Kraków, Poland
| | - Ewa Czarnobilska
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, Botaniczna 3, 31-503, Kraków, Poland
| | - Dorota Myszkowska
- Department of Clinical and Environmental Allergology, Jagiellonian University Medical College, Botaniczna 3, 31-503, Kraków, Poland.
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Chen L, Wu C, Wang H, Chen S, Ma D, Tao Y, Wang X, Luan Y, Wang T, Shi Y, Song G, Zhao Y, Dong X, Wang B. Analysis of Long Noncoding RNAs in Aila-Induced Non-Small Cell Lung Cancer Inhibition. Front Oncol 2021; 11:652567. [PMID: 34235076 PMCID: PMC8255921 DOI: 10.3389/fonc.2021.652567] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 05/21/2021] [Indexed: 01/24/2023] Open
Abstract
Non-small cell lung cancer (NSCLC) has the highest morbidity and mortality among all carcinomas. However, it is difficult to diagnose in the early stage, and current therapeutic efficacy is not ideal. Although numerous studies have revealed that Ailanthone (Aila), a natural product, can inhibit multiple cancers by reducing cell proliferation and invasion and inducing apoptosis, the mechanism by which Aila represses NSCLC progression in a time-dependent manner remains unclear. In this study, we observed that most long noncoding RNAs (lncRNAs) were either notably up- or downregulated in NSCLC cells after treatment with Aila. Moreover, alterations in lncRNA expression induced by Aila were crucial for the initiation and metastasis of NSCLC. Furthermore, in our research, expression of DUXAP8 was significantly downregulated in NSCLC cells after treatment with Aila and regulated expression levels of EGR1. In conclusion, our findings demonstrate that Aila is a potent natural suppressor of NSCLC by modulating expression of DUXAP8 and EGR1.
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Affiliation(s)
- Lin Chen
- College of Clinical Medicine, College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China.,College of Animal Science, Jilin University, Changchun, China
| | - Cui Wu
- College of Clinical Medicine, College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Heming Wang
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Gastroenterology and Hepatology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Sinuo Chen
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Gastroenterology and Hepatology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Danhui Ma
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Gastroenterology and Hepatology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Ye Tao
- Affiliated Hospital to Changchun University of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Xingye Wang
- College of Clinical Medicine, College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Yanhe Luan
- Affiliated Hospital to Changchun University of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Tiedong Wang
- College of Animal Science, Jilin University, Changchun, China
| | - Yan Shi
- School of Pharmacy, Jilin University, Changchun, China
| | - Guangqi Song
- Department of Gastroenterology and Hepatology, Zhongshan Hospital, Fudan University, Shanghai, China.,Department of Gastroenterology and Hepatology, Zhongshan Hospital of Fudan University, Shanghai, China
| | - Yicheng Zhao
- College of Clinical Medicine, College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Xijun Dong
- College of Clinical Medicine, College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China.,Affiliated Hospital to Changchun University of Chinese Medicine, Changchun University of Chinese Medicine, Changchun, China
| | - Bingmei Wang
- College of Clinical Medicine, College of Integrated Traditional Chinese and Western Medicine, Changchun University of Chinese Medicine, Changchun, China
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10
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Bhowmik M, Ghosh N, Gupta Bhattacharya S. Allergenicity assessment of Delonix regia pollen grain and identification of allergens by immunoproteomic approach. Heliyon 2021; 7:e06014. [PMID: 33659721 PMCID: PMC7892808 DOI: 10.1016/j.heliyon.2021.e06014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Revised: 08/21/2020] [Accepted: 01/13/2021] [Indexed: 11/30/2022] Open
Abstract
Background Plantation of road-side avenue trees has become a major part of urbanization programme for megacity beautification and environmental management. Due to evergreen habit and vibrant flower colour, Delonix regia (Gulmohor/Flamboyant) is frequently selected as ornamental tree for plantation programme. However, D. regia pollen is related to IgE mediated allergic reactions and no allergen has been reported so far. Objective Measuring the prevalence of D. regia pollen sensitivity among the local atopic individuals and identifying the allergens using immunoproteomic tools. Methods Aerobiological study was conducted for a period of two years to record the D. regia pollen concentration in the outdoor ambient air. Clinico-immunological tests were performed on atopic individuals to check the prevalence of sensitivity against D. regia pollen. Allergens were detected in the pollen proteome, fractionated in 1D and 2D gel by IgE serology and finally identified by mass spectrometry. Result In the study area D. regia pollen grains were present in ample amount in the air during May to July. About 38% of atopic individuals displayed positive Skin Prick Test (SPT) against D. regia pollen along with elevated level of specific IgE and histamine in the sera. Immunoproteomic analyses revealed the presence of 14 IgE reactive proteins in the 2D pollen proteome, of which 8 IgE reactive proteins were identified by MALDI TOF/TOF using homology driven proteomic approach. Conclusion This study demonstrated pollen related allergy symptoms by D. regia and gave significant message regarding the plantation programme to avoid the unnecessary load of allergic pollen. Also, a panel of 8 allergens were identified for the first time from D. regia pollen. Detailed study of these allergens would help to design immunotherapeutic strategies for pollinosis management.
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Affiliation(s)
- Moumita Bhowmik
- Division of Plant Biology, Bose Institute, 93/1, A.P.C. Road, Kolkata, 700009, India
| | - Nandini Ghosh
- Department of Microbiology, Vidyasagar University, Paschim Medinipur, 721102, India
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Plaza MP, Alcázar P, Oteros J, Galán C. Atmospheric pollutants and their association with olive and grass aeroallergen concentrations in Córdoba (Spain). ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:45447-45459. [PMID: 32789634 PMCID: PMC8197725 DOI: 10.1007/s11356-020-10422-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Accepted: 08/06/2020] [Indexed: 05/07/2023]
Abstract
Cumulative data indicate that pollen grains and air pollution reciprocally interact. Climate changes seem also to influence pollen allergenicity. Depending on the plant species and on the pollutant type and concentration, this interaction may modify the features and metabolism of the pollen grain. Previous results revealed a significant positive correlation between pollen and aeroallergen, even using two different samplers. However, some discrepancy days have been also detected with low pollen but high aeroallergen concentrations. The main aim of the present paper is to find how the environmental factors, and specially pollutants, could affect the amount of allergens from olive and grass airborne pollen. Pollen grains were collected by a Hirst-type volumetric spore trap. Aeroallergen was simultaneously sampled by a low-volume Cyclone Burkard sampler. Phl p 5 and Ole e 1 aeroallergen were quantified by double-sandwich ELISA test. The data related to air pollutants, pollen grains, and aeroallergens were analyzed with descriptive statistic. Spearman's correlation test was used to identify potential correlations between these variables. There is a significant positive correlation between aeroallergens and airborne pollen concentrations, in both studied pollen types, so allergen concentrations could be explained with the pollen concentration. The days with unlinked events coincide between olive and grass allergens. Nevertheless, concerning to our results, pollutants do not affect the amount of allergens per pollen. Even if diverse pollutants show an unclear relationship with the allergen concentration, this association seems to be a casual effect of the leading role of some meteorological parameters.
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Affiliation(s)
- Maria Pilar Plaza
- Chair and Institute of Environmental Medicine, UNIKA-T, University of Augsburg - Technical University of Munich (TUM) and Helmholtz Zentrum München, Neusässer Str. 47, 86156, Augsburg, Germany.
- Department of Botany, Ecology and Plant Physiology, University of Córdoba (UCO), Córdoba, Spain.
| | - Purificación Alcázar
- Department of Botany, Ecology and Plant Physiology, University of Córdoba (UCO), Córdoba, Spain
| | - José Oteros
- Department of Botany, Ecology and Plant Physiology, University of Córdoba (UCO), Córdoba, Spain
- Center of Allergy & Environment (ZAUM), Member of the German Center for Lung Research (DZL), Technische Universität München/Helmholtz Center, Munich, Germany
| | - Carmen Galán
- Department of Botany, Ecology and Plant Physiology, University of Córdoba (UCO), Córdoba, Spain
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Bailly C. Anticancer properties and mechanism of action of the quassinoid ailanthone. Phytother Res 2020; 34:2203-2213. [PMID: 32239572 DOI: 10.1002/ptr.6681] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2019] [Revised: 03/03/2020] [Accepted: 03/12/2020] [Indexed: 02/06/2023]
Abstract
Ailanthone (AIT) is a quassinoid natural product isolated from the worldwide-distributed plant Ailanthus altissima. The drug displays multiple pharmacological properties, in particular significant antitumor effects against a variety of cancer cell lines in vitro. Potent in vivo activities have been evidenced in mice bearing hepatocellular carcinoma, nonsmall cell lung cancer and castration-resistant prostate cancer. This review focusses on the mechanism of action of AIT, notably to highlight the capacity of the drug to activate DNA damage responses, to inhibit the Hsp90 co-chaperone p23 and to modulate the expression of several microRNA. The interconnexion between these effects is discussed. The unique capacity of AIT to downregulate oncogenic miR-21 and to upregulate the tumor suppressor miRNAs miR-126, miR-148a, miR-195, and miR-449a is presented. AIT exploits several microRNAs to exert its anticancer effects in distinct tumor types. AIT is one of the rare antitumor natural products that binds to and strongly inhibits cochaperone p23, opening interesting perspectives to treat cancers. However, the toxicity profile of the molecule may limit its development as an anticancer drug, unless it can be properly formulated to prevent AIT-induced gastro-intestinal damages in particular. The antitumor properties of AIT and analogs are underlined, with the aim to encourage further pharmacological studies with this underexplored natural product and related quassinoids. HIGHLIGHTS: Ailanthone (AIT) is an anticancer quassinoid isolated from Ailanthus altissima It inhibits proliferation and induces cell death of many cancer cell types The drug activates DNA damage response and targets p23 cochaperone Up or downregulation of several microRNA by AIT contributes to the anticancer activity Analogs or specific formulations must be developed to prevent the toxicity of AIT.
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Food allergomics based on high-throughput and bioinformatics technologies. Food Res Int 2019; 130:108942. [PMID: 32156389 DOI: 10.1016/j.foodres.2019.108942] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Revised: 12/19/2019] [Accepted: 12/20/2019] [Indexed: 12/14/2022]
Abstract
Food allergy is a serious food safety problem worldwide, and the investigation of food allergens is the foundation of preventing and treating them, but relevant knowledge is far from sufficient. With the advent of the "big data era", it has been possible to investigate food allergens by high-throughput methods, proposing the concept of allergomics. Allergomics is the discipline studying the repertoire of allergens, which has relatively higher throughput and is faster and more sensitive than conventional methods. This review introduces the basis of allergomics and summarizes its major strategies and applications. Particularly, strategies based on immunoblotting, phage display, allergen microarray, and bioinformatics are reviewed in detail, and the advantages and limitations of each strategy are discussed. Finally, further development of allergomics is predicted. This provides basic theories and recent advances in food allergomics research, which could be insightful for both food allergy research and practical applications.
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