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Lin CY, Cheng CW, Ko JL, Lue KH, Liu YF. Multiplexed transcriptional profiling of Dermatophagoides house dust mites allergens in human epithelium cells. ENVIRONMENTAL TOXICOLOGY 2024; 39:2229-2239. [PMID: 38124673 DOI: 10.1002/tox.24109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 12/03/2023] [Accepted: 12/10/2023] [Indexed: 12/23/2023]
Abstract
Allergic asthma, a chronic disease characterized by airway inflammation, poses a significant public health concern. It is well-established that house dust mites (HDMs) are common inducers of allergic responses in individuals, particularly children. In central Taiwan, our research team observed that over 80% of allergic children exhibited sensitization to various HDMs species. This investigation aims to bridge the gap between these observations and a better understanding of the early fundamental mechanisms for preventing allergic diseases. Specifically, our study delves into the impact of crude extracts of HDMs on human epithelial BEAS-2B cells. Our findings, based on RNA sequencing (RNA-seq) analysis, shed light on how three major Dermatophagoides HDMs allergens activate a common Toll-like receptor signaling pathway in human epithelial cells within a 4-h treatment. During this process, the nuclear transcription factor NF-κB translocated into the cell nucleus within 30 min of allergen stimulation, triggering the expression of pro-inflammatory genes such as IL-6 and IL-8 over 4 h. Additionally, when the cells were treated with specific Dermatophagoides microceras (Der m) allergens, it resulted in the upregulation of genes that regulate type 1 diabetes mellitus (T1DM) signaling pathways. This led to the mediation of IL-12A inflammation. Furthermore, there was an increase in gene sets associated with cilia function and the microtubule cytoskeleton in human epithelial cells after treatment with a combination of Der m allergens and Dexamethasone. Additionally, OMICs analysis was conducted to examine the effects of HDMs allergenic stimulation on human epidermal cells. We aimed to improve our understanding of the molecular mechanisms within cells and identify potential targets and natural products in the treatment of asthma caused by HDMs allergens.
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Affiliation(s)
- Chia-Yang Lin
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Department of Family Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Chun-Wen Cheng
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Jiunn-Liang Ko
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Ko-Huang Lue
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Division of Allergy, Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yu-Fan Liu
- Division of Allergy, Department of Pediatrics, Chung Shan Medical University Hospital, Taichung, Taiwan
- Department of Biomedical Sciences, Chung Shan Medical University, Taichung, Taiwan
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Yang X, Zheng L, Sun Y, Tan X, Zhang B, Li X, Li H. Quantitative Detection of House Dust Mites-Specific IgE by Light-Initiated Chemiluminescence Assay. Lab Med 2024; 55:27-33. [PMID: 37052524 DOI: 10.1093/labmed/lmad024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023] Open
Abstract
OBJECTIVE To establish a new method for quantitative detection of house dust mite (HDM)-sIgE based on light-initiated chemiluminescence assay (LiCA). METHODS The assay was established after optimizing the reaction conditions, and the assay performance was evaluated according to the clinical guidelines. Further, the results of LiCA were compared with those from the ELISA and ImmunoCAP methods. RESULTS Coefficients of variation for repeatability ranged from 4.22% to 7.69%, and intermediate precision from 8.38% to 10.34%. The limit of blank (LoB), limit of detection (LoD), and limit of quantitation (LoQ) were 0.066 kUA/L, 0.165 kUA/L, and 0.171 kUA/L, respectively. The coefficient of correlation (r) between the results of LiCA and ELISA was 0.9263, and the r between the results of LiCA and ImmunoCAP was 0.8870. CONCLUSIONS A HDM-sIgE quantitation assay based on LiCA was established, which could be used as a new reliable analytical tool for the determination of HDM-sIgE.
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Affiliation(s)
- Xiaohui Yang
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Lisheng Zheng
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Yuanmin Sun
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Xin Tan
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Bei Zhang
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Xue Li
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
| | - Huiqiang Li
- Department of Clinical Immunology, School of Medical Laboratory, Tianjin Medical University, Tianjin, China
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He K, Yang T, Yu J, Zang X, Jiang S, Xu S, Liu J, Xu Z, Wang W, Hong S. Dermatophagoides farinae microRNAs released to external environments via exosomes regulate inflammation-related gene expression in human bronchial epithelial cells. Front Immunol 2023; 14:1303265. [PMID: 38106417 PMCID: PMC10722260 DOI: 10.3389/fimmu.2023.1303265] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Accepted: 11/14/2023] [Indexed: 12/19/2023] Open
Abstract
Background Dermatophagoides farinae (DFA) is an important species of house dust mites (HDMs) that causes allergic diseases. Previous studies have focused on allergens with protein components to explain the allergic effect of HDMs; however, there is little knowledge on the role of microRNAs (miRNAs) in the allergic effect of HDMs. This study aimed to unravel the new mechanism of dust mite sensitization from the perspective of cross-species transport of extracellular vesicles-encapsulated miRNAs from HDMs. Methods Small RNA (sRNA) sequencing was performed to detect miRNAs expression profiles from DFA, DFA-derived exosomes and DFA culture supernatants. A quantitative fluorescent real-time PCR (qPCR) assay was used to detect miRNAs expression in dust specimens. BEAS-2B cells endocytosed exosomes were modeled in vitro to detect miRNAs from DFA and the expression of related inflammatory factors. Representative dfa-miR-276-3p and dfa-novel-miR2 were transfected into BEAS-2B cells, and then differentially expressed genes (DEGs) were analyzed by RNA sequencing. Protein-protein interaction (PPI) network analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and Gene Ontology (GO) terms enrichment analyses were performed on the first 300 nodes of DEGs. Results sRNA sequencing identified 42 conserved miRNAs and 66 novel miRNAs in DFA, DFA-derived exosomes, and DFA culture supernatants. A homology analysis was performed on the top 18 conserved miRNAs with high expression levels. The presence of dust mites and miRNAs from HDMs in living environment were also validated. Following uptake of DFA-derived exosomes by BEAS-2B cells, exosomes transported miRNAs from DFA to target cells and produced pro-inflammatory effects in corresponding cells. RNA sequencing identified DEGs in dfa-miR-276-3p and dfa-novel-miR2 transfected BEAS-2B cells. GO and KEGG enrichment analyses revealed the role of exosomes with cross-species transporting of DFA miRNAs in inflammatory signaling pathways, such as JAK-STAT signaling pathway, PI3K/AKT signaling pathway and IL-6-mediated signaling pathway. Conclusion Our findings demonstrate the miRNAs expression profiles in DFA for the first time. The DFA miRNAs are delivered into living environments via exosomes, and engulfed by human bronchial epithelial cells, and cross-species regulation may contribute to inflammation-related processes.
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Affiliation(s)
- Kaiyue He
- Department of Clinical Laboratory, Jiangnan University Medical Center, Wuxi, Jiangsu, China
| | - Ting Yang
- Department of Dermatology, Affiliated Children’s Hospital of Jiangnan University, Wuxi, Jiangsu, China
| | - Jinyan Yu
- Graduate School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiao Zang
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shangde Jiang
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Shuyue Xu
- Graduate School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jiaxi Liu
- Graduate School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Zuyu Xu
- Graduate School of Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wei Wang
- National Health Commission Key Laboratory on Parasitic Disease Prevention and Control, Jiangsu Provincial Key Laboratory on Parasites and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu, China
| | - Shanchao Hong
- Department of Clinical Laboratory, Jiangnan University Medical Center, Wuxi, Jiangsu, China
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Lee YZ, Kow ASF, Jacquet A, Lee MT, Tham CL. House dust mite allergy in Malaysia: review of research gaps in the current scenario and the way forward. EXPERIMENTAL & APPLIED ACAROLOGY 2023; 91:509-539. [PMID: 37995026 DOI: 10.1007/s10493-023-00857-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 10/20/2023] [Indexed: 11/24/2023]
Abstract
The prevalence of house dust mite (HDM) allergy, especially in Asian countries with rapid urbanization, has been increasing. House dust mites thrive in places with relatively high humidity. With the combination of climate change, naturally high humidity, and urbanization, tropical countries like Malaysia are becoming a hotspot for HDM allergy fast. With a previously reported sensitization rate of between 60 and 80%, it is a worrying trend for Malaysia. However, due to incomplete and out-of-date data, as seen by the limited study coverage in the past, these numbers do not paint a complete picture of the true HDM allergy scene in Malaysia. This review briefly discusses the HDM fauna, the HDM sensitization rate, the common diagnosis and therapeutic tools for HDM allergy in Malaysia, and makes suggestions for possible improvements in the future. This review also highlights the need of more comprehensive population-based prevalence studies to be done in Malaysia, encompassing the three main HDMs-Dermatophagoides pteronyssinus, Dermatophagoides farinae, and Blomia tropicalis-as the lack of up-to-date studies failed to give a clearer picture on the current scenario of HDM allergy in Malaysia. Future studies will be beneficial to the nation in preparing a better blueprint for the management and treatment of HDM allergy.
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Affiliation(s)
- Yu Zhao Lee
- Office of Postgraduate Studies, UCSI University, 56000, Kuala Lumpur, Malaysia
| | | | - Alain Jacquet
- Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
| | - Ming Tatt Lee
- Faculty of Pharmaceutical Sciences, UCSI University, 56000, Kuala Lumpur, Malaysia
- Graduate Institute of Pharmacology, College of Medicine, National Taiwan University, Taipei, 10051, Taiwan
- Centre of Research for Mental Health and Wellbeing, UCSI University, 56000, Kuala Lumpur, Malaysia
| | - Chau Ling Tham
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, 43400, Serdang, Malaysia.
- Natural Medicines and Products Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, 43400, Serdang, Selangor, Malaysia.
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Calzada D, Martín-López L, Carnés J. Growth, allergen profile and microbiome studies in Dermatophagoides pteronyssinus cultures. Sci Rep 2023; 13:10633. [PMID: 37391439 PMCID: PMC10313659 DOI: 10.1038/s41598-023-37045-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 06/14/2023] [Indexed: 07/02/2023] Open
Abstract
Mites are mass-cultured to manufacture allergen extracts for allergy diagnostics and therapeutic treatment. This study focused on characterizing the growth, the allergen profile, and the microbiome of Dermatophagoides pteronyssinus cultures. Mite population, protein profile, total protein content and major allergen levels (Der p 1, Der p 2, Der p 23) were monitored at different times of three independent cultures. The allergenicity was studied by immunoblot using a pool of sera from allergic patients. Mite microbiome was characterized by sequencing the 16S rRNA gene from 600 adult mites from the last day of the culture. Endotoxin content was also analyzed. The cultures had a fast and unrelenting evolution. Mite density, total protein content, major allergen levels and the allergenicity were increased progressively during the cultures. Regarding the microbiome studies, the results confirm the presence of non-pathogenic bacteria, being firmicutes and actinobacteria the most common bacterial taxa, with a very low content of Gram-negative bacteria and endotoxin content. The allergenicity and levels of the main allergens in the mite cultures are objective methods useful to monitor the mite culture that help to produce standardized allergen extracts. The high presence of Gram-positive bacteria found limits the possibility for vaccine contamination by bacterial endotoxins.
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Affiliation(s)
- D Calzada
- R&D Unit, Allergy & Immunology, LETI Pharma S.L.U., Calle del Sol nº 5, Tres Cantos, 28760, Madrid, Spain
| | - L Martín-López
- R&D Unit, Allergy & Immunology, LETI Pharma S.L.U., Calle del Sol nº 5, Tres Cantos, 28760, Madrid, Spain
| | - Jerónimo Carnés
- R&D Unit, Allergy & Immunology, LETI Pharma S.L.U., Calle del Sol nº 5, Tres Cantos, 28760, Madrid, Spain.
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Hu H, Dai J, Zheng X, Wu J, Wu L, Luo W, Sun B. The relationship of D. pteronyssinus allergic component sIgE and sIgG₄ in house dust mite allergic rhinitis or/and allergic asthma patients. Allergy Asthma Proc 2023; 44:100-105. [PMID: 36872447 DOI: 10.2500/aap.2023.44.220078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
Objective: House-dust mite sensitization is an important cause of allergic asthma and/or rhinitis in southern China. This study aimed to analyze the immune effect and relationship between the Dermatophagoides pteronyssinus components specific immunoglobulin E (sIgE) and sIgG₄. Methods: The serum levels of sIgE and sIgG₄ to D. pteronyssinus allergen components Der p 1, 2, 3, 5, 7, 10, and 23 were detected in 112 patients with allergic rhinitis (AR) and/or allergic asthma (AA). Results: Overall, Der p 1 had the highest positive rate of sIgE (72.3%), followed by Der p 2 (65.2%) and Der p 23 (46.4%). Meanwhile, the highest positive rates of sIgG₄ were for Der p 2 (47.3%), Der p 1 (33.0%), and Der p 23 (25.0%). The patients with AR and AA had a higher positive rate (43.4%) of sIgG₄ than that in the patients with AR (42.4%) and the patients with AA (20.4%; p = 0.043). In patients with AR, the positive rate of sIgE in Der p 1 (84.8%) was higher than that in sIgG₄ (42.4%; p = 0.037), but the positive rate of sIgG₄ in Der p 10 (21.2%) was higher than that in sIgE (18.2%; p < 0.001). Most of the patients were positive for sIgE and sIgG₄ of Der p 2 and Der p 10 at the same time. However, positive results for sIgE alone were just found in Der p 7 and Der p 21. Optimal scale analysis showed that Der p 2, Der p 7, and Der p 21 sIgG₄ were closely related to AR and AA (Cronbach α = 0.917). Conclusion: Herein, the D. pteronyssinus allergen components showed different characteristics among the patients with AR, patients with AA, and patients with AR and AA in southern China. Thus, sIgG₄ may be play an important role in allergic reactions.
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Affiliation(s)
- Haisheng Hu
- From the Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, and
| | - Jinyu Dai
- Equipment Section, Chongqing Bishan District People's Hospital, Chongqing, China
| | - Xianhui Zheng
- From the Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, and
| | - Jiajia Wu
- From the Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, and
| | - Liting Wu
- From the Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, and
| | - Wenting Luo
- From the Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, and
| | - Baoqing Sun
- From the Department of Allergy and Clinical Immunology, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China, and
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Srisomboon Y, Iijima K, Colwell M, Maniak PJ, Macchietto M, Faulk C, Kita H, O'Grady SM. Allergen-induced DNA release by the airway epithelium amplifies type 2 immunity. J Allergy Clin Immunol 2023; 151:494-508.e6. [PMID: 36306937 PMCID: PMC10324884 DOI: 10.1016/j.jaci.2022.09.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2022] [Revised: 08/10/2022] [Accepted: 09/15/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Alternaria alternata and house dust mite exposure evokes IL-33 secretion from the airway epithelium, which functions as an alarmin to stimulate type 2 immunity. Extracellular DNA (eDNA) is also an alarmin that intensifies inflammation in cystic fibrosis, chronic obstructive pulmonary disease, and asthma. OBJECTIVE We investigated the mechanisms underlying allergen-evoked DNA mobilization and release from the airway epithelium and determined the role of eDNA in type 2 immunity. METHODS Human bronchial epithelial (hBE) cells were used to characterize allergen-induced DNA mobilization and extracellular release using comet assays to measure DNA fragmentation, Qubit double-stranded DNA assays to measure DNA release, and DNA sequencing to determine eDNA composition. Mice were used to investigate the role of eDNA in type 2 immunity. RESULTS Alternaria extract rapidly induces mitochondrial and nuclear DNA release from human bronchial epithelial cells, whereas house dust mite extract induces mitochondrial DNA release. Caspase-3 is responsible for nuclear DNA fragmentation and becomes activated after cleavage by furin. Analysis of secreted nuclear DNA showed disproportionally higher amounts of promotor and exon sequences and lower intron and intergenic regions compared to predictions of random DNA fragmentation. In mice, Alternaria-induced type 2 immune responses were blocked by pretreatment with a DNA scavenger. In caspase-3-deficient mice, Alternaria-induced DNA release was suppressed. Furthermore, intranasal administration of mouse genomic DNA with Alternaria amplified secretion of IL-5 and IL-13 into bronchoalveolar lavage fluid while DNA alone had no effect. CONCLUSION These findings highlight a novel, allergen-induced mechanism of rapid DNA release that amplifies type 2 immunity in airways.
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Affiliation(s)
- Yotesawee Srisomboon
- Departments of Animal Science, Integrative Biology, and Physiology, University of Minnesota, St Paul, Minn
| | - Koji Iijima
- Division of Allergy, Asthma, and Clinical Immunology, Mayo Clinic Arizona, Scottsdale, Ariz
| | - Mathia Colwell
- Departments of Animal Science, Integrative Biology, and Physiology, University of Minnesota, St Paul, Minn
| | - Peter J Maniak
- Departments of Animal Science, Integrative Biology, and Physiology, University of Minnesota, St Paul, Minn
| | - Marissa Macchietto
- Minnesota Super Computing Institute, University of Minnesota, Minneapolis, Minn
| | - Christopher Faulk
- Departments of Animal Science, Integrative Biology, and Physiology, University of Minnesota, St Paul, Minn
| | - Hirohito Kita
- Division of Allergy, Asthma, and Clinical Immunology, Mayo Clinic Arizona, Scottsdale, Ariz.
| | - Scott M O'Grady
- Departments of Animal Science, Integrative Biology, and Physiology, University of Minnesota, St Paul, Minn.
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Xue Q, Zou M, Guo J, Teng Q, Zhang Q, Sheng L, Xu S, Fang C, Yao N, Li Y, Zhao J. Detection and assessment of dust mite allergens in an indoor environment in Anhui, China. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:3045-3055. [PMID: 35941504 PMCID: PMC9892137 DOI: 10.1007/s11356-022-22395-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Accepted: 08/01/2022] [Indexed: 06/15/2023]
Abstract
Dust in the home environment is thought to be a potential trigger for increasing allergic diseases, such as allergic rash, rhinitis, asthma, and other conditions, associated with dust mites. To verify the status of dust mite prevalence in indoor surroundings, we collected 189 dust samples from the air conditioner filters (n = 75) and floors (n = 114) of households, schools, and hotels in the Anhui area, China. All samples were measured for dust mite breeding rate and breeding density under light microscopy and analyzed for dust mite species Dermatophagoides farinae 1 (Der f 1) and Dermatophagoides pteronyssinus 1 (Der p 1) allergen using enzyme-linked immunosorbent assay (ELISA). The dust mite breeding rates were 34.67% (26/75) and 20.18% (23/114), respectively, in the dust samples from the floor and air conditioning filters. The breeding density was the highest in households (10/g), followed by schools (9/g) and hotels (4/g). ELISA indicated that the allergen threshold (2.0 µg/g dust) of Der f 1 was exceeded in only two samples and Der p 1 in one sample. Additionally, a questionnaire was used to investigate the health knowledge on allergic diseases involved in indoor facilities, finding that most allergy sufferers were aware that indoor dust might be responsible for their conditions. The findings suggest that regular maintenance of indoor hygiene and cleaning of air-conditioning filters should reduce the risks of exposure to indoor allergens.
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Affiliation(s)
- Qiqi Xue
- Department of Medical Parasitology, Wannan Medical College, WuhuAnhui, 241002, China
| | - Minghui Zou
- Department of Medical Parasitology, Wannan Medical College, WuhuAnhui, 241002, China
| | - Junjie Guo
- Department of Medical Parasitology, Qiqihar Medical College, QiqiharHeilongjiang, 161000, China
| | - Qiao Teng
- Department of Medical Parasitology, Wannan Medical College, WuhuAnhui, 241002, China
| | - Qiqi Zhang
- School of Clinical Medicine, Wannan Medical College, WuhuAnhui, 241002, China
| | - Lingwei Sheng
- Medical Laboratory Science, Wannan Medical College, WuhuAnhui, 241002, China
| | - Sijia Xu
- Medical Laboratory Science, Wannan Medical College, WuhuAnhui, 241002, China
| | - Can Fang
- School of Public Health, Wannan Medical College, WuhuAnhui, 241002, China
| | - Ning Yao
- School of Public Health, Wannan Medical College, WuhuAnhui, 241002, China
| | - Yuanyuan Li
- Department of Medical Parasitology, Wannan Medical College, WuhuAnhui, 241002, China
| | - Jinhong Zhao
- Department of Medical Parasitology, Wannan Medical College, WuhuAnhui, 241002, China.
- Anhui Province Key Laboratory of Biological Macromlecules Research, Wannan Medical College, WuhuAnhui, 241002, China.
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Lin Y, Enyoh CE, Wang Q, Lu S, Zhang W, Xiao K, Zhou S, Kaneko T, Seguchi A, Wang W, Guo Y. Novel Approaches for Inhibiting the Indoor Allergen Der f 2 Excreted from House Dust Mites by Todomatsu Oil Produced from Woodland Residues. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:10881. [PMID: 36078598 PMCID: PMC9517791 DOI: 10.3390/ijerph191710881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/20/2022] [Accepted: 08/28/2022] [Indexed: 06/15/2023]
Abstract
House dust mite (HDM) is a globally ubiquitous domestic cause of allergic diseases. There is a pressing demand to discover efficient, harmless, and eco-friendly natural extracts to inhibit HDM allergens that are more likely to trigger allergies and challenging to be prevented entirely. This study, therefore, is aimed at assessing the inhibition of the allergenicity of major HDM allergen Der f 2 by todomatsu oil extracted from residues of Abies Sachalinensis. The inhibition was investigated experimentally (using enzyme-linked immunosorbent assay (ELISA), surface plasmon resonance (SPR), and sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE)) and in silico using molecular docking. The results showed that todomatsu oil inhibits the allergenicity of Der f 2 by reducing its amount instead of the IgG binding capacity of a single protein. Moreover, the compounds in todomatsu oil bind to Der f 2 via alkyl hydrophobic interactions. Notably, most compounds interact with the hydrophobic amino acids of Der f 2, and seven substances interact with CYS27. Contrarily, the principal compounds fail to attach to the amino acids forming the IgG epitope in Der f 2. Interestingly, chemical components with the lowest relative percentages in todomatsu oil show high-affinity values on Der f 2, especially β-maaliene (-8.0 kcal/mol). In conclusion, todomatsu oil has been proven in vitro as a potential effective public health strategy to inhibit the allergenicity of Der f 2.
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Affiliation(s)
- Yichun Lin
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Christian Ebere Enyoh
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Qingyue Wang
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Senlin Lu
- School of Environmental and Chemical Engineering, Shanghai University, 99 Shangdalu, Baoshan District, Shanghai 200444, China
| | - Wei Zhang
- School of Life Sciences, Shanghai University, 99 Shangdalu, Baoshan District, Shanghai 200444, China
| | - Kai Xiao
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Shumin Zhou
- School of Life Sciences, Shanghai University, 99 Shangdalu, Baoshan District, Shanghai 200444, China
| | - Toshihiko Kaneko
- Japan Aroma Laboratory Co., Ltd. (S. T. Corporation), Tokyo 161-8540, Japan
| | - Akifumi Seguchi
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Weiqian Wang
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Yue Guo
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-Okubo, Sakura-ku, Saitama 338-8570, Japan
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王 晓, 普 晓, 陈 力, 郭 淼, 郑 长, 王 洪, 王 学. [Profiles of IgE sensitization to dust mite allergen components in patients with allergic rhinitis and asthma]. LIN CHUANG ER BI YAN HOU TOU JING WAI KE ZA ZHI = JOURNAL OF CLINICAL OTORHINOLARYNGOLOGY, HEAD, AND NECK SURGERY 2022; 36:576-581. [PMID: 35959573 PMCID: PMC10128206 DOI: 10.13201/j.issn.2096-7993.2022.08.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/24/2022] [Indexed: 06/15/2023]
Abstract
Objective:To study the differences and clinical significance of dust mite allergen components in allergic rhinitis(AR) and allergic rhinitis with asthma syndrome(ARAS) patients. Methods:The clinical data of 42 AR patients were retrospectively analyzed and patients were divided into AR and ARAS group. The serum sIgE concentrations of house dust mites were detected by ImmunoCAP system. The allergen components of Der p(Der p 1, Der p 2, Der p 7, Der p 10, Der p 21, Der p 23) and Der f(Der f 1, Der f 2) were analyzed by protein microarray method. The concentration differences of dust mite allergen and its components in AR and ARAS groups were analyzed. Results:Thirty-one cases of AR and 11 cases of ARAS were included. The positive rate of Der p and Der f was 100.0% and 97.6%, respectively. The highest sensitization rates of Der p allergen components were as following: Der p 1(73.8%), Der f 1(66.7%), Der f 2(64.3%) and Der p 2(61.9%). The sensitization rates of Der f 1(100.0% vs 54.8%, P=0.006), Der p 2(90.9% vs 51.6%, P=0.021) and Der f 2(100.0% vs 51.6%, P=0.004) in ARAS group were significantly higher than those in AR group. The sIgE concentrations of Der p in AR group were significantly lower than those in ARAS group([7.65±12.15]kUA/L vs[15.20±18.77]kUA/L, P<0.05). The sIgE concentrations of Der p 1([5.39±4.61]kUA/L vs[2.03±2.97]kUA/L, P=0.013), Der p 2([8.82± 13.58]kUA/L vs[2.78±5.80]kUA/L, P=0.001), Der p 23([1.76± 3.88]kUA/L vs[0.28±0.65]kUA/L, P<0.001) was significantly higher in ARAS group than that of AR group. Correlation analysis showed that Der p 1, Der p 2, Der f 1 and Der f 2 had high positive correlation(P<0.01). The dust mite components sensitization showed a multiple-sensitized mode. 66.7% of the 42 patients were positive for two or more components while it was 58.1% of the AR group and 90.9% of the ARAS group. The sensitization rate of 3 or more components in ARAS group was significantly higher than that in AR group(54.6% vs 29.1%, P<0.05). Conclusion:The concentration of dust mites allergens in ARAS group is higher than that in AR group. Der p 1, Der f 1, Der p 2 and Der f 2 are the main allergen components with a higher sensitization rate in ARAS group. The concentrations of Der p 1, Der p 2 and Der p 23 were higher in ARAS group. The ARAS group is prone to multi-sensitzed to allergen components.
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Affiliation(s)
- 晓艳 王
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 晓瑜 普
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
- 首都医科大学附属北京世纪坛医院耳鼻咽喉头颈外科Department of Otolaryngology Head and Neck Surgery, Beijing Shijitan Hospital, Capital Medical University
| | - 力嘉 陈
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 淼颖 郭
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 长波 郑
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 洪田 王
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
| | - 学艳 王
- 首都医科大学附属北京世纪坛医院变态反应科(北京,100038)Department of Allergy, Beijing Shijitan Hospital, Capital Medical University, Beijing, 100038, China
- 首都医科大学附属北京世纪坛医院变态反应中心Allergy Center, Beijing Shijitan Hospital, Capital Medical University
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González-Pérez R, Poza-Guedes P, Pineda F, Castillo M, Sánchez-Machín I. Storage Mite Precision Allergy Molecular Diagnosis in the Moderate-to-Severe T2-High Asthma Phenotype. Int J Mol Sci 2022; 23:ijms23084297. [PMID: 35457116 PMCID: PMC9030016 DOI: 10.3390/ijms23084297] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 04/05/2022] [Accepted: 04/11/2022] [Indexed: 12/30/2022] Open
Abstract
Storage mites (SM) may induce allergic respiratory symptoms in sensitized individuals, in both rural and urban settings. The relationship among specific IgE reactions to determined groups of SM allergens in the coincident asthma pheno-endotypes has not yet been investigated. We aimed to study a Precision Allergy Molecular Diagnosis (PAMD@) model to depict the SM molecular profile in individuals presenting with Type-2 inflammation, in two different (moderate and severe) asthma phenotypes. A customized PAMD@ panel, including SM allergens and their concurrent protein allergenic characterization was investigated. Mite group 2 allergens were most frequently recognized, including Lep d 2 (83.45%), followed by Gly d 2 (69.17%) and Tyr p 2 (47,37%), in 133/164 asthmatic subjects. Blo t 5 and Blo t 21 exhibited significant higher titres in both asthma groups. Although relevant mite group 2 allergens cross-reactivity is suggested, individualized sensitization patterns were relevantly identified. The present PAMD@ panel confirmed the dominance of mite group 2 allergens in moderate-to-severe T2 asthmatics. A broadly heterogeneous molecular repertoire of SM allergens was found in all subjects, regardless of their asthma severity. Blomia tropicalis deserves special attention in certain territories, as diagnostic and/or therapeutic approaches merely based on Pyroglyphidae mites may be insufficient.
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Affiliation(s)
- Ruperto González-Pérez
- Allergy Department, Hospital Universitario de Canarias, 38320 Tenerife, Spain; (P.P.-G.); (I.S.-M.)
- Severe Asthma Unit, Hospital Universitario de Canarias, 38320 Tenerife, Spain
- Correspondence: ; Tel.: +34-922-677237
| | - Paloma Poza-Guedes
- Allergy Department, Hospital Universitario de Canarias, 38320 Tenerife, Spain; (P.P.-G.); (I.S.-M.)
- Severe Asthma Unit, Hospital Universitario de Canarias, 38320 Tenerife, Spain
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12
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Zhang W, Zhao Y, Hu L, Guan C, Xun M, Wu F, Lei Y. Establishment of purification method for prokaryotic expression of Serpin gene for Dermatophagoides farinae. Protein Expr Purif 2022; 195-196:106080. [PMID: 35304262 DOI: 10.1016/j.pep.2022.106080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/09/2022] [Accepted: 03/10/2022] [Indexed: 11/17/2022]
Abstract
This study aimed to develop an effective method for the expression and purification of the Dermatophagoides farinae serpin protein and to establish an experimental foundation for elucidating its role in the temperature stress response. The total RNA of D. farinae was extracted, and specific primers were designed for serpin amplification. Serpin was joined with pET32a vector and transformed into BL21 (DE3) cells. Expression of recombinant proteins was induced. Proteins were extracted by enzymatic lysis or enzymatic lysis combined with ultrasonication. Recombinant proteins were purified by Ni-NTA method. SDS-PAGE was conducted to evaluate protein expression, extraction, and purification efficiency. Agarose gel electrophoresis and sequencing analysis showed that the amplified serpin open reading frame was 1284 bp, encoding a hydrophilic and stable protein with a relative molecular weight of 48.30 kD. SDS-PAGE demonstrated that there was a specific band at 55-70 kD, which was consistent with the predicted size of the recombinant pET32a-Serpin protein. Enzymatic lysis combined with 30% ultrasonic power promoted the release of soluble protein more effectively than enzymatic lysis alone. 16 °C for 4 h was optimal for inducing expression. The optimal imidazole concentrations for washing non-His-tagged protein and eluting His-tagged protein were determined to be 20 mM and 200 mM, respectively. In this study, A prokaryotic expression and purification system for the D. farinae serpin protein was successfully established, providing a technical reference for functional gene research in mites at the protein level.
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Affiliation(s)
- Wanyu Zhang
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yae Zhao
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China.
| | - Li Hu
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Chenglin Guan
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Meng Xun
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Feng Wu
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China
| | - Yanjun Lei
- Department of Pathogenic Biology and Immunology, School of Basic Medical Sciences, Xi'an Jiaotong University, Xi'an, 710061, China
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13
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Nur Husna SM, Md Shukri N, Tan HTT, Mohd Ashari NS, Wong KK. Higher Wheal Sizes of Dermatophagoides farinae Sensitization Exhibit Worse Nasal Symptoms in Allergic Rhinitis Patients. Front Med (Lausanne) 2022; 9:843432. [PMID: 35295602 PMCID: PMC8918548 DOI: 10.3389/fmed.2022.843432] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Accepted: 02/07/2022] [Indexed: 12/21/2022] Open
Abstract
Allergic rhinitis (AR) is a global health burden and it manifests in both nasal and non-nasal symptoms. Skin prick test (SPT) is a routine procedure to diagnose AR sensitized to common allergens including house dust mites (HDMs). The degree of sensitivity of a patient toward allergens is determined by the size of the wheal formed by SPT procedure. SPT wheal sizes are influenced by recent anti-histamine usage, however it remains unclear if SPT wheal sizes are also influenced by other factors. In this study, we set out to investigate the association between SPT wheal sizes with the demographical, clinical and environmental characteristics, as well as nasal and non-nasal symptoms severity scores, of AR patients (n = 30) sensitized to common HDMs (i.e., Dermatophagoides pteronyssinus, Dermatophagoides farinae, and Blomia tropicalis). We showed that SPT wheal sizes of HDM allergens were not associated with clinical, demographical and environmental characteristics examined. Nonetheless, significant correlations were observed between SPT wheal sizes of D. farinae sensitization with worse severity scores of all five nasal symptoms examined (i.e., sneezing, runny nose, itchy nose, congestion and postnasal drip) and four of the six non-nasal symptoms examined (i.e., throat symptoms, ear symptoms, headache and mental function). Such relationships were not observed in SPT wheal sizes of D. pteronyssinus and B. tropicalis sensitization. We suggest that increased SPT wheal sizes for D. farinae sensitization may predict the likelihood of more severe nasal and, to a lesser extent, non-nasal manifestations in AR patients.
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Affiliation(s)
- Siti Muhamad Nur Husna
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Norasnieda Md Shukri
- Department of Otorhinolaryngology, Head and Neck Surgery, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
- Hospital Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Hern-Tze Tina Tan
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Noor Suryani Mohd Ashari
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
- Hospital Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Kah Keng Wong
- Department of Immunology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Malaysia
- Hospital Universiti Sains Malaysia, Kubang Kerian, Malaysia
- *Correspondence: Kah Keng Wong ; orcid.org/0000-0001-7359-6202
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Effects of rAmb a 1-Loaded PLGA-PEG Nanoparticles in a Murine Model of Allergic Conjunctivitis. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27030598. [PMID: 35163859 PMCID: PMC8837990 DOI: 10.3390/molecules27030598] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/09/2022] [Accepted: 01/13/2022] [Indexed: 11/17/2022]
Abstract
Ambrosia artemisiifolia (Amb a) contains many allergens. Allergic conjunctivitis caused by Ambrosia artemisiifolia and its related allergen-specific immunotherapy (AIT) are seldom studied at present. poly(DL-lactide-co-glycolide)-polyethylene glycol (PLGA-PEG) is a very good nano-carrier, which has been applied in the medical field. In this context, we studied the immunotherapy effect and potential mechanism of recombinant Amb a 1 (rAmb a 1)-loaded PLGA-PEG nanoparticles. A mouse allergic conjunctivitis model was established with Ambrosia artemisiifolia crude extract, and the nanoparticles were used for AIT through direct observation of conjunctival tissue, degranulation of mast cells in conjunctival tissue, serum-specific antibodies, cytokines and other assessment models. The treatment of nanoparticles enhanced the secretion of T-helper 1 (Th1) cytokine Interferon-gama (IFN-γ) and the production of immunoglobulin G (IgG)2a (IgG2a), inhibited the secretion of T-helper 2 (Th2) cytokine Interleukin (IL)-13 and IL-4 and the level of IgE. Especially, degranulation of mast cells and expression of mast cell protease-1 (MCP-1) in conjunctival tissue was reduced significantly. In this study, we proved that the nanoparticles prepared by rAmb a 1 and PLGA-PEG have an immunotherapy effect on allergic conjunctivitis in mice.
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15
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Kim SM, Kim JA, Kim HS, Yoon JS, Kim HH, Chun YH. Development of a house dust mite-induced mouse model for allergen-specific immunotherapy in allergic rhinitis. ALLERGY ASTHMA & RESPIRATORY DISEASE 2022. [DOI: 10.4168/aard.2022.10.4.195] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Seok Min Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Ji An Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hwan Soo Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Jong-Seo Yoon
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hyun Hee Kim
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Yoon Hong Chun
- Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea
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16
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Yu PY, Zhu Y, Tan LX, Xu ZQ, Lu C, Guan XW. Immunoinformatics Construction of B Cell Epitope-Based Hypoallergenic Der f 34 Vaccine for Immunotherapy of House Dust Mite Allergy. Int J Pept Res Ther 2021. [DOI: 10.1007/s10989-021-10337-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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da Silva Antunes R, Sutherland A, Frazier A, Schulten V, Pomés A, Glesner J, Calatroni A, Altman MC, Wood RA, O'Connor GT, Pongracic JA, Khurana Hershey GK, Kercsmar CM, Gruchalla RS, Gill M, Liu AH, Zoratti E, Kattan M, Busse PJ, Bacharier LB, Teach SJ, Wheatley LM, Togias A, Busse WW, Jackson DJ, Sette A. Heterogeneity of magnitude, allergen immunodominance, and cytokine polarization of cockroach allergen-specific T cell responses in allergic sensitized children. Clin Transl Allergy 2021; 11:e12073. [PMID: 34691392 PMCID: PMC8514843 DOI: 10.1002/clt2.12073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 09/13/2021] [Accepted: 10/03/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Characterization of allergic responses to cockroach (CR), a common aeroallergen associated with asthma, has focused mainly on IgE reactivity, but little is known about T cell responses, particularly in children. We conducted a functional evaluation of CR allergen-specific T cell reactivity in a cohort of CR allergic children with asthma. METHODS Peripheral blood mononuclear cells (PBMCs) were obtained from 71 children, with mild-to-moderate asthma who were enrolled in a CR immunotherapy (IT) clinical trial, prior to treatment initiation. PBMC were stimulated with peptide pools derived from 11 CR allergens, and CD4+ T cell responses assessed by intracellular cytokine staining. RESULTS Highly heterogeneous responses in T cell reactivity were observed among participants, both in terms of the magnitude of cytokine response and allergen immunodominance. Reactivity against Bla g 9 and Bla g 5 was most frequent. The phenotype of the T cell response was dominated by IL-4 production and a Th2 polarized profile in 54.9% of participants, but IFNγ production and Th1 polarization was observed in 25.3% of the participants. The numbers of regulatory CD4+ T cells were also highly variable and the magnitude of effector responses and Th2 polarization were positively correlated with serum IgE levels specific to a clinical CR extract. CONCLUSIONS Our results demonstrate that in children with mild-to-moderate asthma, CR-specific T cell responses display a wide range of magnitude, allergen dominance, and polarization. These results will enable examination of whether any of the variables measured are affected by IT and/or are predictive of clinical outcomes.
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Affiliation(s)
| | - Aaron Sutherland
- Division of Vaccine DiscoveryLa Jolla Institute for ImmunologyLa JollaCaliforniaUSA
| | - April Frazier
- Division of Vaccine DiscoveryLa Jolla Institute for ImmunologyLa JollaCaliforniaUSA
| | - Veronique Schulten
- Division of Vaccine DiscoveryLa Jolla Institute for ImmunologyLa JollaCaliforniaUSA
| | - Anna Pomés
- Basic ResearchIndoor Biotechnologies, Inc.CharlottesvilleVirginiaUSA
| | - Jill Glesner
- Basic ResearchIndoor Biotechnologies, Inc.CharlottesvilleVirginiaUSA
| | | | - Matthew C. Altman
- Benaroya Research Institute Systems Immunology DivisionDepartment of MedicineUniversity of WashingtonSeattleWashingtonUSA
| | - Robert A. Wood
- Division of Pediatric Allergy, Immunology and RheumatologyDepartment of PediatricsJohns Hopkins University School of MedicineBaltimoreMarylandUSA
| | - George T. O'Connor
- Boston University School of MedicinePulmonary CenterBostonMassachusettsUSA
| | - Jacqueline A. Pongracic
- Advanced General Pediatrics and Primary CareAnn & Robert H. Lurie Children's Hospital of ChicagoChicagoIllinoisUSA
| | | | - Carolyn M. Kercsmar
- Division of Pulmonary MedicineCincinnati Children's HospitalCincinnatiOhioUSA
| | - Rebecca S. Gruchalla
- Divisions of Infectious Diseases and Pulmonary Vascular BiologyDepartment of PediatricsUniversity of Texas Southwestern Medical CenterDallasTexasUSA
| | - Michelle Gill
- Divisions of Infectious Diseases and Pulmonary Vascular BiologyDepartment of PediatricsUniversity of Texas Southwestern Medical CenterDallasTexasUSA
| | - Andrew H. Liu
- Department of PediatricsChildren's Hospital ColoradoUniversity of Colorado School of MedicineAuroraColoradoUSA
| | - Edward Zoratti
- Henry Ford Health System and Wayne State University School of MedicineDetroitMichiganUSA
| | - Meyer Kattan
- College of Physicians and SurgeonsColumbia UniversityNew YorkNew YorkUSA
| | - Paula J. Busse
- Division of Clinical Immunology and AllergyIcahn School of Medicine at Mount SinaiNew YorkNew YorkUSA
| | - Leonard B. Bacharier
- Department of PediatricsMonroe Carell Jr Children's Hospital at Vanderbilt University Medical CenterNashvilleTennesseeUSA
| | - Stephen J. Teach
- Center for Translational ResearchChildren's National HospitalWashingtonDCUSA
| | - Lisa M. Wheatley
- Division of Allergy, Immunology, and TransplantationNational Institute of Allergy and Infectious DiseasesNational Institutes of HealthRockvilleMarylandUSA
| | - Alkis Togias
- Division of Allergy, Immunology, and TransplantationNational Institute of Allergy and Infectious DiseasesNational Institutes of HealthRockvilleMarylandUSA
| | - William W. Busse
- Departments of Pediatrics and MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Daniel J. Jackson
- Departments of Pediatrics and MedicineUniversity of Wisconsin School of Medicine and Public HealthMadisonWisconsinUSA
| | - Alessandro Sette
- Division of Vaccine DiscoveryLa Jolla Institute for ImmunologyLa JollaCaliforniaUSA
- Department of MedicineUniversity of California San DiegoLa JollaCaliforniaUSA
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Martín-López L, López-Matas MA, Calzada D, Benjumeda-Maira A, Martín E, García E, Carnés J. Environmental exposure of Der p 23 in household dust samples. Clin Exp Allergy 2021; 51:1645-1647. [PMID: 34427963 DOI: 10.1111/cea.14004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Accepted: 08/22/2021] [Indexed: 01/02/2023]
Affiliation(s)
- Laura Martín-López
- R&D Allergy & Immunology Unit, LETIPharma S.L.U., Tres Cantos, Madrid, Spain
| | - María A López-Matas
- R&D Allergy & Immunology Unit, LETIPharma S.L.U., Tres Cantos, Madrid, Spain
| | - David Calzada
- R&D Allergy & Immunology Unit, LETIPharma S.L.U., Tres Cantos, Madrid, Spain
| | - Alfredo Benjumeda-Maira
- Allergology Section, Department of Internal Medicine, Hospital Dr. José Molina Orosa, Lanzarote, Spain
| | - Elena Martín
- Allergology Section, Department of Internal Medicine, Hospital Dr. José Molina Orosa, Lanzarote, Spain
| | - Eduardo García
- Endocrinology Section, Department of Internal Medicine, Hospital Dr. José Molina Orosa, Lanzarote, Spain
| | - Jerónimo Carnés
- R&D Allergy & Immunology Unit, LETIPharma S.L.U., Tres Cantos, Madrid, Spain
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Ciprandi G, Tosca MA. House dust mites-driven allergic rhinitis: could its natural history be modified? Expert Rev Clin Immunol 2021; 17:109-114. [PMID: 33472013 DOI: 10.1080/1744666x.2021.1879642] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
INTRODUCTION Allergic rhinitis (AR) is the most common IgE-mediated disease. House dust mites (HDMs)-sensitization is the main cause of AR. HDM-driven AR is characterized by a typical natural history consisting of possible progression to asthma. Allergen Immunotherapy (AIT) is, at present, a unique treatment to modify the natural history of allergic diseases. Tablets AIT (TAIT) represents a new era in AIT. There is evidence that TAIT could prevent asthma in AR patients. AREAS COVERED The literature search methodology was based on the articles cited by PubMed from 1980 to 2020. AIT's rationale is to restore an immunological and, consequently, clinical tolerance toward the causal allergen. The progression from rhinitis to asthma may be influenced by a relevant risk factor, such as the persistent type 2 inflammation of airways. HDMs are perennial allergens and allergen exposure is the condicio sine qua non to maintain inflammation. AIT could modify the progression toward asthma restoring physiologic immune response to the causal allergen and consequently dampening type 2 inflammation. EXPERT OPINION Patients with HDM-driven AR are susceptible to develop asthma over time. Many studies explored this topic. Cross-sectional and longitudinal studies identified some markers which predict the risk of developing asthma. They include bronchial airflow limitation, bronchial hyperresponsiveness, type 2 inflammation, and rhinitis duration. TAIT could block this progression by acting on this vicious circle. Future studies should explore this issue using adequate methodology.
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Affiliation(s)
- Giorgio Ciprandi
- Outpatients Department, Consultant Allergist, Casa Di Cura Villa Montallegro, Genoa, Italy
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