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Caraballo L. Exploring the relationship between house dust mites and asthma. Expert Rev Clin Immunol 2024:1-4. [PMID: 38652085 DOI: 10.1080/1744666x.2024.2346585] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2024] [Accepted: 04/19/2024] [Indexed: 04/25/2024]
Affiliation(s)
- Luis Caraballo
- Institute for Immunological Research, University of Cartagena, Cartagena, Colombia
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2
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Jung J, Enos CW, Lam KK, Han JK. The Role of Inhalant Allergens on the Clinical Manifestations of Atopic Dermatitis. Am J Rhinol Allergy 2024:19458924241246855. [PMID: 38623643 DOI: 10.1177/19458924241246855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/17/2024]
Abstract
BACKGROUND Inhalant allergens provide a source of environmental factors that contribute to the development of clinical symptoms in patients with atopic dermatitis (AD). OBJECTIVE To review the relationship between inhalant allergens and AD. METHODS A literature review was conducted using three databases: PubMed/MEDLINE, ClinicalKey, and Web of Science. Search terms, including "atopic dermatitis," "atopic eczema," and "eczema," were used in combination with "inhalant allergen," "inhaled allergen," and "aeroallergen" to identify relevant published manuscripts that highlight the relationship between AD and exposures to inhalant allergens. RESULTS Fifteen articles were suitable for review. The studies included in the review investigated the effect of inhalant allergens on the clinical manifestations of AD through bronchial provocation, direct skin contact, and allergen sensitization. CONCLUSION There is a significant relationship between exposures to inhalant allergens and AD. Inhalant allergens may aggravate AD symptoms by either bronchial provocation or direct skin contact. Sensitization of inhalant allergens, mainly house dust mites, follows a specific age-related pattern.
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Affiliation(s)
- Jaekeun Jung
- Divisions of Rhinology, Endoscopic Sinus Surgery, and Allergy, Department of Otolaryngology - Head and Neck Surgery, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Clinton W Enos
- Department of Dermatology, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Kent K Lam
- Divisions of Rhinology, Endoscopic Sinus Surgery, and Allergy, Department of Otolaryngology - Head and Neck Surgery, Eastern Virginia Medical School, Norfolk, VA, USA
| | - Joseph K Han
- Divisions of Rhinology, Endoscopic Sinus Surgery, and Allergy, Department of Otolaryngology - Head and Neck Surgery, Eastern Virginia Medical School, Norfolk, VA, USA
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Klain A, Senatore AA, Licari A, Galletta F, Bettini I, Tomei L, Manti S, Mori F, Miraglia Del Giudice M, Indolfi C. The Prevention of House Dust Mite Allergies in Pediatric Asthma. Children (Basel) 2024; 11:469. [PMID: 38671686 DOI: 10.3390/children11040469] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 04/03/2024] [Accepted: 04/12/2024] [Indexed: 04/28/2024]
Abstract
This review provides a concise overview of preventive measures against dust mite allergies in pediatric populations, emphasizing the need for a comprehensive and evolving approach. Dust mites, ubiquitous microscopic arachnids, pose a significant threat to children's health, triggering allergies and asthma. Traditional preventive strategies such as regular cleaning, mattress covers, and humidity control are essential but warrant refinement. Empowering children through personalized hygiene education and exploring innovative bedding solutions showcase a forward-thinking paradigm. Collaboration with healthcare professionals and embracing technology-driven solutions ensures a holistic and adaptable approach to safeguarding pediatric health against dust mite-related ailments. This abstract underscores the importance of continually reassessing and innovating preventive measures to create resilient and health-conscious living environments for children.
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Affiliation(s)
- Angela Klain
- Department of Woman, Child and General and Specialized Surgery, University of Campania 'Luigi Vanvitelli', 80138 Naples, Italy
| | - Antonio Andrea Senatore
- Department of Clinical, Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
| | - Amelia Licari
- Department of Clinical, Surgical, Diagnostic, and Pediatric Sciences, University of Pavia, 27100 Pavia, Italy
- Pediatric Clinic, Fondazione IRCCS Policlinico San Matteo, 27100 Pavia, Italy
| | - Francesca Galletta
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age 'Gaetano Barresi', University of Messina, 98122 Messina, Italy
| | - Irene Bettini
- Pediatric Unit, IRCCS Azienda Ospedaliera-Universitaria di Bologna, 40138 Bologna, Italy
| | - Leonardo Tomei
- Allergy Unit, Meyer Children's Hospital, IRCCS, 50139 Florence, Italy
| | - Sara Manti
- Pediatric Unit, Department of Human Pathology in Adult and Developmental Age 'Gaetano Barresi', University of Messina, 98122 Messina, Italy
| | - Francesca Mori
- Allergy Unit, Meyer Children's Hospital, IRCCS, 50139 Florence, Italy
| | - Michele Miraglia Del Giudice
- Department of Woman, Child and General and Specialized Surgery, University of Campania 'Luigi Vanvitelli', 80138 Naples, Italy
| | - Cristiana Indolfi
- Department of Woman, Child and General and Specialized Surgery, University of Campania 'Luigi Vanvitelli', 80138 Naples, Italy
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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. Environ Toxicol 2024; 39:2229-2239. [PMID: 38124673 DOI: 10.1002/tox.24109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [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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Jutel M, Klimek L, Richter H, Brüggenjürgen B, Vogelberg C. House dust mite SCIT reduces asthma risk and significantly improves long-term rhinitis and asthma control-A RWE study. Allergy 2024; 79:1042-1051. [PMID: 38429981 DOI: 10.1111/all.16052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 01/18/2024] [Accepted: 01/20/2024] [Indexed: 03/03/2024]
Abstract
BACKGROUND The German Therapy Allergen Ordinance (TAO) triggered an ongoing upheaval in the market for house dust mite (HDM) allergen immunotherapy (AIT) products. Three HDM subcutaneous AIT (SCIT) products hold approval in Germany and therefore will be available after the scheduled completion of the TAO procedure in 2026. In general, data from clinical trials on the long-term effectiveness of HDM AIT are rare. We evaluated real-world data (RWD) in a retrospective, observational cohort study based on a longitudinal claims database including 60% of all German statutory healthcare prescriptions to show the long-term effectiveness of one of these products in daily life. Aim of this analysis was to provide a per product analysis on effectiveness of mite AIT as it is demanded by international guidelines on AIT. METHODS Subjects between 5 and 70 years receiving their first (index) prescription of SCIT with a native HDM product (SCIT group) between 2009 and 2013 were included. The exactly 3:1 matched control group received prescriptions for only symptomatic AR medication (non-AIT group); the evaluation period for up to 6 years of follow-up ended in February 2017. Study endpoints were the progression of allergic rhinitis (AR) and asthma, asthma occurrence and time to the onset of asthma after at least 2 treatment years. RESULTS In total, 892 subjects (608 adults and 284 children/adolescents) were included in the SCIT group and 2676 subjects (1824 adults and 852 children/adolescents) in the non-AIT group. During the follow-up period after at least 2 years of SCIT, the number of prescriptions in the SCIT group was reduced by 62.8% (p < .0001) for AR medication and by 42.4% for asthma medication (p = .0003). New-onset asthma risk was significantly reduced in the SCIT vs non-AIT group by 27.0% (p = .0212). The asthma-preventive effect of SCIT occurred 15 months after start of the treatment. In the SCIT group, the time to onset of asthma was prolonged compared to the non-AIT group (p = .0010). CONCLUSION In this first product based RWD analysis on SCIT with a native HDM product, patients aged 5 to 70 years benefited from AIT in the long term in terms of reduced progression of AR and asthma after at least 2 years of treatment. The effects seemed to last for up to 6 years after treatment termination. A significantly reduced risk of asthma onset was observed, starting after 15 months of treatment.
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Affiliation(s)
- Marek Jutel
- ALL-MED Medical Research Institute, Wrocław, Poland
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland
| | - Ludger Klimek
- Center for Rhinology and Allergology, Wiesbaden, Germany
| | | | - Bernd Brüggenjürgen
- Institute for Health Services Research and Technical Orthopedics, Orthopedic Clinic of Hannover Medical School, Hannover, Germany
| | - Christian Vogelberg
- Department of Pneumology and Allergology, Carl Gustav Carus University Clinic, Dresden, Germany
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Dunbar H, Hawthorne IJ, McNamee EN, Armstrong ME, Donnelly SC, English K. The human MIF polymorphism CATT 7 enhances pro-inflammatory macrophage polarization in a clinically relevant model of allergic airway inflammation. FASEB J 2024; 38:e23576. [PMID: 38530238 DOI: 10.1096/fj.202400207r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 02/29/2024] [Accepted: 03/11/2024] [Indexed: 03/27/2024]
Abstract
High level expression of the pro-inflammatory cytokine macrophage migration inhibitory factor (MIF) has been associated with severe asthma. The role of MIF and its functional promotor polymorphism in innate immune training is currently unknown. Using novel humanized CATT7 MIF mice, this study is the first to investigate the effect of MIF on bone marrow-derived macrophage (BMDM) memory after house dust mite (HDM) challenge. CATT7 BMDMs demonstrated a significant primed increase in M1 markers following HDM and LPS stimulation, compared to naive mice. This M1 signature was found to be MIF-dependent, as administration of a small molecule MIF inhibitor, SCD-19, blocked the induction of this pro-inflammatory M1-like phenotype in BMDMs from CATT7 mice challenged with HDM. Training naive BMDMs in vitro with HDM for 24 h followed by a rest period and subsequent stimulation with LPS led to significantly increased production of the pro-inflammatory cytokine TNFα in BMDMs from CATT7 mice but not WT mice. Addition of the pan methyltransferase inhibitor MTA before HDM training significantly abrogated this effect in BMDMs from CATT7 mice, suggesting that HDM-induced training is associated with epigenetic remodelling. These findings suggest that trained immunity induced by HDM is under genetic control, playing an important role in asthma patients with the high MIF genotypes (CATT6/7/8).
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Affiliation(s)
- Hazel Dunbar
- Department of Biology, Maynooth University, Maynooth, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Ireland
| | - Ian J Hawthorne
- Department of Biology, Maynooth University, Maynooth, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Ireland
| | - Eóin N McNamee
- Department of Biology, Maynooth University, Maynooth, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Ireland
| | - Michelle E Armstrong
- Department of Medicine, Trinity College Dublin and Tallaght University Hospital, Dublin, Ireland
| | - Seamas C Donnelly
- Department of Medicine, Trinity College Dublin and Tallaght University Hospital, Dublin, Ireland
| | - Karen English
- Department of Biology, Maynooth University, Maynooth, Ireland
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Ireland
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Qin QZ, Tang J, Wang CY, Xu ZQ, Tian M. Construction by artificial intelligence and immunovalidation of hypoallergenic mite allergen Der f 36 vaccine. Front Immunol 2024; 15:1325998. [PMID: 38601166 PMCID: PMC11004385 DOI: 10.3389/fimmu.2024.1325998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2023] [Accepted: 03/12/2024] [Indexed: 04/12/2024] Open
Abstract
Background The house dust mite (HDM) is widely recognized as the most prevalent allergen in allergic diseases. Allergen-specific immunotherapy (AIT) has been successfully implemented in clinical treatment for HDM. Hypoallergenic B-cell epitope-based vaccine designed by artificial intelligence (AI) represents a significant progression of recombinant hypoallergenic allergen derivatives. Method The three-dimensional protein structure of Der f 36 was constructed using Alphafold2. AI-based tools were employed to predict B-cell epitopes, which were subsequently verified through IgE-reaction testing. Hypoallergenic Der f 36 was then synthesized, expressed, and purified. The reduced allergenicity was assessed by enzyme-linked immunosorbent assay (ELISA), immunoblotting, and basophil activation test. T-cell response to hypoallergenic Der f 36 and Der f 36 was evaluated based on cytokine expression in the peripheral blood mononuclear cells (PBMCs) of patients. The immunogenicity was evaluated and compared through rabbit immunization with hypoallergenic Der f 36 and Der f 36, respectively. The inhibitory effect of the blocking IgG antibody on the specific IgE-binding activity and basophil activation of Der f 36 allergen was also examined. Results The final selected non-allergic B-cell epitopes were 25-48, 57-67, 107-112, 142-151, and 176-184. Hypoallergenic Der f 36 showed significant reduction in IgE-binding activity. The competitive inhibition of IgE-binding to Der f 36 was investigated using the hypoallergenic Der f 36, and only 20% inhibition could be achieved, which is greatly reduced when compared with inhibition by Der f 36 (98%). The hypoallergenic Der f 36 exhibited a low basophil-stimulating ratio similar to that of the negative control, and it could induce an increasing level of IFN-γ but not Th2 cytokines IL-5 and IL-13 in PBMCs. The vaccine-specific rabbit blocking IgG antibodies could inhibit the patients' IgE binding and basophil stimulation activity of Derf 36. Conclusion This study represents the first application of an AI strategy to facilitate the development of a B-cell epitope-based hypoallergenic Der f 36 vaccine, which may become a promising immunotherapy for HDM-allergic patients due to its reduced allergenicity and its high immunogenicity in inducing blocking of IgG.
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Affiliation(s)
- Qiao-Zhi Qin
- Department of Respiratory Medicine, Children’s Hospital of Nanjing Medical University, Nanjing, China
- Pediatric Department, Northern Jiangsu People’s Hospital, Yangzhou, China
| | - Jian Tang
- Department of Pharmacy, The Affiliated Cancer Hospital of Nanjing Medical University and Jiangsu Cancer Hospital and Jiangsu Institute of Cancer Research, Nanjing, China
| | - Cai-Yun Wang
- Department of Respiratory Medicine, Children’s Hospital of Nanjing Medical University, Nanjing, China
| | - Zhi-Qiang Xu
- Research Division of Clinical Pharmacology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
- National Vaccine Innovation Platform, Nanjing Medical University, Nanjing, China
| | - Man Tian
- Department of Respiratory Medicine, Children’s Hospital of Nanjing Medical University, Nanjing, China
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Linn C, O’Malley A, Khatri K, Wright EM, Sebagh D, Grbić M, Kowal K, Chruszcz M. Microscopic Menaces: The Impact of Mites on Human Health. Int J Mol Sci 2024; 25:3675. [PMID: 38612486 PMCID: PMC11011512 DOI: 10.3390/ijms25073675] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2024] [Revised: 03/20/2024] [Accepted: 03/21/2024] [Indexed: 04/14/2024] Open
Abstract
Mites are highly prevalent arthropods that infest diverse ecological niches globally. Approximately 55,000 species of mites have been identified but many more are yet to be discovered. Of the ones we do know about, most go unnoticed by humans and animals. However, there are several species from the Acariformes superorder that exert a significant impact on global human health. House dust mites are a major source of inhaled allergens, affecting 10-20% of the world's population; storage mites also cause a significant allergy in susceptible individuals; chiggers are the sole vectors for the bacterium that causes scrub typhus; Demodex mites are part of the normal microfauna of humans and their pets, but under certain conditions populations grow out of control and affect the integrity of the integumentary system; and scabies mites cause one of the most common dermatological diseases worldwide. On the other hand, recent genome sequences of mites provide novel tools for mite control and the development of new biomaterial with applications in biomedicine. Despite the palpable disease burden, mites remain understudied in parasitological research. By better understanding mite biology and disease processes, researchers can identify new ways to diagnose, manage, and prevent common mite-induced afflictions. This knowledge can lead to improved clinical outcomes and reduced disease burden from these remarkably widespread yet understudied creatures.
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Affiliation(s)
- Christina Linn
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA; (C.L.); (A.O.); (K.K.); (E.M.W.); (D.S.)
| | - Andrea O’Malley
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA; (C.L.); (A.O.); (K.K.); (E.M.W.); (D.S.)
| | - Kriti Khatri
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA; (C.L.); (A.O.); (K.K.); (E.M.W.); (D.S.)
| | - Elaine M. Wright
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA; (C.L.); (A.O.); (K.K.); (E.M.W.); (D.S.)
| | - Dylan Sebagh
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA; (C.L.); (A.O.); (K.K.); (E.M.W.); (D.S.)
| | - Miodrag Grbić
- Department of Biology, University of Western Ontario, London, ON N6A 5B7, Canada;
| | - Krzysztof Kowal
- Department of Allergology and Internal Medicine, Medical University of Bialystok, 15-276 Bialystok, Poland;
- Department of Experimental Allergology and Immunology, Medical University of Bialystok, 15-276 Bialystok, Poland
| | - Maksymilian Chruszcz
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824, USA; (C.L.); (A.O.); (K.K.); (E.M.W.); (D.S.)
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Hamada M, Saeki K, Tanaka I. Effectiveness of allergen immunotherapy with house dust mite extract for pediatric bronchial asthma. Immunotherapy 2024. [PMID: 38530075 DOI: 10.2217/imt-2024-0024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/27/2024] Open
Abstract
Aim: We compared the effectiveness of rush subcutaneous immunotherapy (SCIT) and sublingual immunotherapy (SLIT) using standardized house dust mite (HDM) extract for pediatric bronchial asthma (BA). Methods: We followed the pediatric BA treatment score during 3 years of treatment. We assessed the median time to no longer requiring long-term control pharmacotherapy (LTCP) for BA (LTCP-free). We compared the outcomes after adjustment for confounding factors and propensity score matching. Results: Patients in the HDM SCIT group achieved the LTCP-free status significantly earlier than those in the HDM SLIT group after adjustment for confounding factors and propensity score matching. Conclusion: Patients treated for pediatric BA with rush HDM SCIT had earlier onset of therapeutic effects than those with HDM SLIT.
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Affiliation(s)
- Masaaki Hamada
- Department of Pediatrics, Yao Municipal Hospital, Osaka, Japan
| | - Keigo Saeki
- Department of Epidemiology, Nara Medical University School of Medicine, Nara, Japan
| | - Ichiro Tanaka
- Department of Pediatrics, Yao Municipal Hospital, Osaka, Japan
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Torres-Duque CA, Alí-Munive A, Severiche-Bueno D, Durán-Silva M, Aguirre-Franco CE, González-Florez A, Pareja-Zabala MJ, Jiménez-Maldonado L, Gonzalez-Garcia M. Tropical high altitude and severe asthma in adults: house dust mite sensitization and phenotypic distribution. J Asthma 2024; 61:222-231. [PMID: 37801283 DOI: 10.1080/02770903.2023.2263072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 09/21/2023] [Indexed: 10/07/2023]
Abstract
BACKGROUND There is a lack of information on house dust mite (HDM) sensitization and phenotype distribution in patients with severe asthma (SA) living permanently at high-altitude (HA) in tropical regions, which may be different. OBJECTIVE The aim of this study was to characterize adults with SA in a tropical high altitude city (2,640 m): Bogotá, Colombia. MATERIAL AND METHODS This observational cross-sectional study included severe asthmatic outpatients (n = 129) referred to the ASMAIRE program of the Fundación Neumológica Colombiana in Bogotá (2,640 m). Clinical history, spirometry, total IgE, blood eosinophils, and skin prick test (SPT), including HDM allergens, were performed. Phenotype definitions: Allergic/atopic (AA): IgE ≥100 IU/mL and/or at least one positive SPT; eosinophilic (EOS): blood eosinophils ≥300 cells/µL; type 2-high: AA and/or EOS phenotype; type 2-low: non-AA/non-EOS phenotype (IgE <100 IU/mL, negative SPT, and blood eosinophils <300 cells/µL). RESULTS A total of 129 adults with SA were included, 79.8% female. Phenotype distribution: AA: 61.2%; EOS: 37.2%; type 2-high: 72.1%; type 2-low: 27.9%. Among AA patients, HDM sensitization was present in 87% and 34.9% were non-eosinophilic. There was a significant overlap between the phenotypes. CONCLUSIONS In contrast to non-tropical high-altitude regions, we found a high frequency of HDM sensitization in patients with AA phenotype living in a tropical high-altitude city. We also found a discrete lower frequency of EOS phenotype with no other significant differences in the phenotypic distribution compared to that described at low altitudes. We propose that tropical location may modify the effect of high altitude on HDM concentrations and allergenicity.
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Affiliation(s)
- Carlos A Torres-Duque
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
- Universidad de La Sabana, Chía, Colombia
| | - Abraham Alí-Munive
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
- Universidad de La Sabana, Chía, Colombia
| | - Diego Severiche-Bueno
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
- Universidad de La Sabana, Chía, Colombia
| | - Mauricio Durán-Silva
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
- Universidad de La Sabana, Chía, Colombia
| | - Carlos E Aguirre-Franco
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
- Universidad de La Sabana, Chía, Colombia
| | - Angélica González-Florez
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
| | - María José Pareja-Zabala
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
| | - Libardo Jiménez-Maldonado
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
- Universidad de La Sabana, Chía, Colombia
| | - Mauricio Gonzalez-Garcia
- Asmaire Program and Departamento de Investigación, Fundación Neumológica Colombiana, Bogotá, Colombia
- Universidad de La Sabana, Chía, Colombia
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Romero-Sánchez L, Otero A, González-Rivas M, Lojo S, González-Quintela A, Vidal C. Der p 23 sensitization in patients with house dust mite respiratory allergy. Eur Ann Allergy Clin Immunol 2024; 56:79-85. [PMID: 35899400 DOI: 10.23822/eurannaci.1764-1489.264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Summary Background. The sensitization profile of patients allergic to house dust mites (HDM) and its molecular diagnosis may determine treatment and evolution of the disease. The present study investigates the prevalence of Der p 23 sensitization and its relation to asthma in a population of HDM-allergic patients. Methods. We conducted a cross-sectional study of 891 patients with HDM allergy with symptoms of rhinitis and 52.1% of them with asthma. Total and specific IgE (sIgE) was measured against Dermatophagoides pteronyssinus and its molecular components and the storage mite Lepidoglyphus destructor using ImmunoCAP. Prevalence of sensitization and levels of sIgE were analyzed according to asthma diagnosis and asthma severity. Results. Der p 23 was the predominant allergen in this population (83.7%), but IgE levels were lower than those of sIgE to Der p 1 and Der p 2. A good correlation was found between sIgE to Der p 23 and the other allergens. A total of 8.2% patients were monosensitized to Der p 23. Asthma was more frequent in patients with positive sIgE against Der p 23 than in patients without this sensitization (p = 0.027). A tendency to increase both total IgE and sIgE was observed in relation to the severity of asthma from intermittent mild asthma to persistent moderate asthma, but a substantial decrease in total IgE and sIgE was detected in more severe asthmatics. Conclusions. Der p 23 might be a prevalent allergen in regions with high rates of HDM exposure and its presence could increase the risk of asthma.
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Affiliation(s)
- L Romero-Sánchez
- Department of Allergy, Faculty of Medicine, Complejo Hospitalario Universitario de Santiago, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - A Otero
- Department of Allergy, Faculty of Medicine, Complejo Hospitalario Universitario de Santiago, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - M González-Rivas
- Department of Allergy, Faculty of Medicine, Complejo Hospitalario Universitario de Santiago, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - S Lojo
- Department of Biochemistry, Complejo Hospitalario Universitario de Santiago, Santiago de Compostela, Spain
| | - A González-Quintela
- Department of Medicine, Faculty of Medicine, Complejo Hospitalario Universitario de Santiago, University of Santiago de Compostela, Spain
| | - C Vidal
- Department of Allergy, Faculty of Medicine, Complejo Hospitalario Universitario de Santiago, University of Santiago de Compostela, Santiago de Compostela, Spain
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Hsin L, Varese N, Aui PM, Wines BD, von Borstel A, Mascarell L, Hogarth PM, Hew M, O'Hehir RE, van Zelm MC. Accurate determination of house dust mite sensitization in asthma and allergic rhinitis through cytometric detection of Der p 1 and Der p 2 binding on basophils (CytoBas). J Allergy Clin Immunol 2024:S0091-6749(24)00156-8. [PMID: 38360181 DOI: 10.1016/j.jaci.2024.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 01/10/2024] [Accepted: 02/06/2024] [Indexed: 02/17/2024]
Abstract
BACKGROUND House dust mite (HDM) is the most common allergen trigger globally for allergic rhinitis and atopic asthma. OBJECTIVES To expedite accurate confirmation of allergen sensitization, we designed fluorescent allergen tetramers to directly stain specific IgE on basophils to detect specific allergen sensitization using the flow cytometric CytoBas assay. METHODS Recombinant proteins of major HDM allergens (component), Der f 1, Der p 1, and Der p 2 were biotinylated and conjugated with fluorochrome streptavidins as tetramers. Blood samples from 64 patients who are HDM-allergic and 26 controls that are non-HDM-sensitized were incubated with allergen tetramers for evaluation of basophil binding (CytoBas) and activation (BAT) with flow cytometry. RESULTS The tetramers effectively bound and activated basophils from patients who are allergic but not from controls who are nonsensitized. CytoBas with Der p 1 as a single allergen had comparable sensitivity and specificity (92% and 100%) to BAT (91% and 100%) in detecting allergen sensitization, as did CytoBas with Der p 2 (95% and 96%) to BAT (95% and 87%). A positive staining for Der p 1 and/or Der p 2 in CytoBas was 100% sensitive and 96% specific for HDM allergy. CONCLUSIONS CytoBas has diagnostic accuracy for group 1 and group 2 HDM allergens that is comparable to BAT, but with additional advantages of multiple allergen components in a single tube and no requirement for in vitro basophil activation. These findings endorse a single, multiplex CytoBas assay for accurate and component-resolved diagnosis of aeroallergen sensitization in patients with allergic asthma and/or rhinitis.
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Affiliation(s)
- Lin Hsin
- Department of Immunology, Central Clinical School, Monash University, Melbourne, Australia
| | - Nirupama Varese
- Department of Immunology, Central Clinical School, Monash University, Melbourne, Australia; Allergy, Asthma and Clinical Immunology, Alfred Health, Melbourne, Australia; Immune Therapies Group, Burnet Institute, Melbourne, Australia
| | - Pei Mun Aui
- Department of Immunology, Central Clinical School, Monash University, Melbourne, Australia
| | - Bruce D Wines
- Department of Immunology, Central Clinical School, Monash University, Melbourne, Australia; Immune Therapies Group, Burnet Institute, Melbourne, Australia; Department of Pathology, The University of Melbourne, Parkville, Australia
| | - Anouk von Borstel
- Department of Immunology, Central Clinical School, Monash University, Melbourne, Australia
| | - Laurent Mascarell
- Innovation and Science Department, Stallergenes Greer, Antony, France
| | - P Mark Hogarth
- Department of Immunology, Central Clinical School, Monash University, Melbourne, Australia; Immune Therapies Group, Burnet Institute, Melbourne, Australia; Department of Pathology, The University of Melbourne, Parkville, Australia
| | - Mark Hew
- Allergy, Asthma and Clinical Immunology, Alfred Health, Melbourne, Australia; Department of Pathology, The University of Melbourne, Parkville, Australia
| | - Robyn E O'Hehir
- Department of Immunology, Central Clinical School, Monash University, Melbourne, Australia; Allergy, Asthma and Clinical Immunology, Alfred Health, Melbourne, Australia
| | - Menno C van Zelm
- Department of Immunology, Central Clinical School, Monash University, Melbourne, Australia; Allergy, Asthma and Clinical Immunology, Alfred Health, Melbourne, Australia; Department of Immunology, Erasmus Medical Center, University Medical Center, Rotterdam, The Netherlands.
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13
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Simard ML, Novak N, Drolet JP, Joly MC, Nolte H, Wuestenberg E, Gagnon R. Tolerability of sublingual versus vestibular allergy immunotherapy tablet administration: A randomized pilot study. Clin Exp Allergy 2024; 54:120-129. [PMID: 37990117 DOI: 10.1111/cea.14427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Accepted: 11/08/2023] [Indexed: 11/23/2023]
Abstract
BACKGROUND Local application site reactions are common with sublingual allergy immunotherapy (AIT)-tablets for the treatment of allergic rhinitis/conjunctivitis (AR/C) and occasionally lead to treatment discontinuation. Because of the lower mast cell density in the vestibular mucosa than the sublingual area, vestibular AIT-tablet administration may result in fewer adverse events (AEs). This pilot study evaluated the tolerability of the vestibular administration route of AIT-tablets compared with the sublingual route in adult subjects with AR/C. METHODS Adults (n = 164) aged 18-65 years with AR/C treated with daily birch pollen, grass pollen, ragweed pollen or house dust mite AIT in tablet form were randomized 1:1 to vestibular or sublingual administration for 28 days, followed by 28 days of sublingual administration only. The primary endpoint was the severity (mild, moderate, severe) of local treatment-related adverse events (TRAEs) during the first 28 days of treatment. RESULTS During the first 28 days, the percentage of subjects in the vestibular and sublingual groups reporting mild TRAEs were 55.6% versus 50.6%, respectively; moderate TRAEs were 27.2% versus 30.1%; and severe TRAEs were 12.3% versus 6.0% (p = .16). In the vestibular group, 95.1% of the subjects experienced at least one TRAE during the first period versus 81.9% in the sublingual group (p = .01) and discontinuation rates due to AEs were higher (12.3% vs. 3.6%). CONCLUSION The frequencies of subjects experiencing severe TRAEs, at least one TRAE, and discontinuations due to AEs at the initiation of AIT-tablets were numerically higher with vestibular administration than sublingual administration. Sublingual administration should remain the standard of care for subjects treated with AIT-tablets for AR/C.
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Affiliation(s)
- Marie-Lee Simard
- Clinique Spécialisée en Allergie de la Capitale, Québec, Québec, Canada
| | - Natalija Novak
- Clinic and Polyclinic for Dermatology and Allergology, University Hospital Bonn, Bonn, Germany
| | | | - Marie-Claude Joly
- Clinique Spécialisée en Allergie de la Capitale, Québec, Québec, Canada
| | | | - Eike Wuestenberg
- ALK-Abelló A/S, Hørsholm, Denmark
- Department of Otorhinolaryngology Head and Neck Surgery, Faculty of Medicine (and University Hospital) Carl Gustav Carus, Technische Universität Dresden, Dresden, Germany
| | - Rémi Gagnon
- Clinique Spécialisée en Allergie de la Capitale, Québec, Québec, Canada
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14
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Matsumoto FY, Tranquillini Gonçalves TR, Solé D, Wandalsen GF. Local allergic rhinitis in children: identification and characterization in a specialty outpatient clinic. Eur Ann Allergy Clin Immunol 2024. [PMID: 38258826 DOI: 10.23822/eurannaci.1764-1489.327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2024]
Abstract
Summary Background. Local Allergic Rhinitis (LAR) is a phenotype defined by rhinitis symptoms with negative responses to systemic sensitization tests but with an exclusively nasal allergic inflammatory response. Data on the pediatric age group is scarce, and no Latin American data has been published so far. Methods. Nasal Allergen Challenge (NAC) was performed with Dermatophagoides pteronyssinus and Blomia tropicalis in six- to 18-year-old patients diagnosed with rhinitis and no systemic sensitization. NAC was monitored using subjective parameters and acoustic rhinometry. The study aimed to identify LAR in child and adolescent subjects previously diagnosed with non-allergic rhinitis (NAR) in a Brazilian specialty outpatient clinic (Allergy and Immunology). Results. During the study period, we analyzed 758 skin prick tests (SPT). Of those, 517 (68.2%) were diagnosed with rhinitis. Among those, 18.4% (95/517) had a negative SPT, meeting the criteria for inclusion in the study. Twenty-five patients underwent NAC, and 40% (10/25) of them, previously considered to have NAR, had a positive test and were reclassified as having LAR. Based on the analyzed characteristics, clinically differentiating LAR from NAR was impossible. Conclusions. This study represents the first investigation of LAR in child and adolescent subjects in Latin America, contributing significantly to the understanding of its prevalence and characteristics in this geographic area. Among a subgroup of patients lacking systemic sensitization submitted to NAC, 40% (10/25) demonstrated a positive NAC with Dermatophagoides pteronyssinus and Blomia tropicalis, warranting their reclassification to LAR. NAC with multiple allergens has been proven safe and viable in pediatric populations, affirming its critical role in the accurate diagnosis of LAR.
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Affiliation(s)
- F Y Matsumoto
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Pediatrics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - T R Tranquillini Gonçalves
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Pediatrics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - D Solé
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Pediatrics, Universidade Federal de São Paulo, São Paulo, Brazil
| | - G F Wandalsen
- Division of Allergy, Clinical Immunology and Rheumatology, Department of Pediatrics, Universidade Federal de São Paulo, São Paulo, Brazil
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15
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Duraisamy SK, Srinivasan A, Sundar IK. House dust mite and Th2 cytokine-mediated epithelial barrier dysfunction attenuation by KL001 in 16-HBE cells. Tissue Barriers 2024; 12:2203841. [PMID: 37079442 PMCID: PMC10832928 DOI: 10.1080/21688370.2023.2203841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Accepted: 04/12/2023] [Indexed: 04/21/2023] Open
Abstract
House dust mite (HDM) is a common aeroallergen that can disrupt the airway epithelial barrier leading to dysregulated immune response, resulting in allergic lung diseases such as asthma. Cryptochrome (CRY), a circadian clock gene, plays an important role in the regulation of metabolism, and immune response. It remains unclear whether stabilizing CRY using KL001 can attenuate HDM/Th2 cytokine-induced epithelial barrier dysfunction in 16-HBE cells. We evaluate the effect of KL001 (20 µM) pre-treatment (4 hrs) in HDM/Th2 cytokine (IL-4 or IL-13)-mediated change in epithelial barrier function. HDM and Th2 cytokine-induced changes in transepithelial electrical resistance (TEER) were determined by an xCELLigence real-time cell analyzer and delocalization of adherens junction complex (AJC: E-cadherin and β-catenin) and tight junction proteins (TJP: Occludin and Zonula occludens-1) by immunostaining and confocal microscopy. Finally, quantitative real-time PCR (qRT-PCR) and Western blotting were used to measure altered gene expression and protein abundance of the epithelial barrier function and core clock genes, respectively. HDM and Th2 cytokine treatment significantly decreased TEER associated with altered gene expression and protein abundance of the selected epithelial barrier function and circadian clock genes. However, pre-treatment with KL001 attenuated HDM and Th2 cytokine-induced epithelial barrier dysfunction as early as 12-24 hrs. KL001 pre-treatment showed attenuation of HDM and Th2 cytokine-induced alteration in the localization and gene expression of AJP and TJP (Cdh1, Ocln, and Zo1) and core clock genes (Clock, Arntl/Bmal1, Cry1/2, Per1/2, Nr1d1/Rev-erbα, and Nfil3). We demonstrate, for the first time, the protective role of KL001 in HDM and Th2 cytokine-mediated epithelial barrier dysfunction.
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Affiliation(s)
- Santhosh Kumar Duraisamy
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Ashokkumar Srinivasan
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
| | - Isaac Kirubakaran Sundar
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, KS, USA
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16
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Srinivasan A, Giri A, Duraisamy SK, Alsup A, Castro M, Sundar IK. Acute HDM exposure shows time-of-day and sex-based differences in the severity of lung inflammation and circadian clock disruption. J Allergy Clin Immunol Glob 2023; 2:100155. [PMID: 37781650 PMCID: PMC10509939 DOI: 10.1016/j.jacig.2023.100155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 05/19/2023] [Accepted: 05/24/2023] [Indexed: 10/03/2023]
Abstract
Background Asthma is a chronic inflammatory disease that shows a time-of-day response to variations in symptoms/severity. However, how the lung circadian clock influences time-of-day response and sex-based differences in house dust mite (HDM)-induced airway inflammation and remodeling has not been thoroughly investigated. Objective We sought to determine whether acute HDM exposure in wild-type mice shows time-of-day response and sex-based differences in allergic airway inflammation and circadian clock disruption in the lungs. Methods Wild-type (C57BL/6J) and Rev-erbα knockout (KO) mice were exposed to either PBS or HDM (for 10 days) intranasally at Zeitgeber time (ZT0: 6 am; ZT12: 6 pm) and euthanized 48 hours after the last exposure. Acute HDM-induced time-of-day response and sex-based differences in lung inflammation, gated cytokines/chemokines, humoral and hormonal responses, and circadian clock gene expression were analyzed. Results Acute HDM-exposed mice showed a time-of-day response and sex-based differences in exaggerated lung inflammation (inflammatory eosinophils and interstitial macrophages) at ZT12 when compared with ZT0. HDM-exposed female mice showed increased inflammatory response at ZT12, but HDM-exposed male mice showed comparatively lower inflammation with no time-of-day response. HDM-exposed female and male mice showed augmented IgE levels at ZT12 when compared with ZT0. Myeloid innate immunity panel, cytokines/chemokines, and mucin genes showed a time-of-day gating response at ZT0 and ZT12 in the HDM group. In addition, HDM exposure altered the expression of circadian clock genes in the lung, which was evident in female mice at ZT12. Overall, female mice showed significant time-of-day responses to all these parameters compared with male mice. Rev-erbα KO mice exposed to acute HDM showed exaggerated lung inflammation associated with increased IgE and proinflammatory cytokines in bronchoalveolar lavage fluid. Interestingly, HDM exposure causes reduced expression of clock genes in flow-sorted resident eosinophils but not alveolar macrophages. Acute HDM exposure reduced the nocturnal locomotor activity in mice 5 days post-HDM exposure until day 10. Conclusions This study shows a time-of-day response to acute HDM exposure and sex-based differences in the severity of lung inflammation and humoral immune response associated with circadian clock disruption. Our findings support the use of separate female and male mice cohorts for preclinical studies to understand the molecular heterogeneity in asthma pathophysiology.
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Affiliation(s)
| | - Allan Giri
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kan
| | - Santhosh Kumar Duraisamy
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kan
| | - Alexander Alsup
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kan
| | - Mario Castro
- Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, Kansas City, Kan
| | - Isaac Kirubakaran Sundar
- Corresponding author: Isaac Kirubakaran Sundar, PhD, Division of Pulmonary, Critical Care and Sleep Medicine, Department of Internal Medicine, University of Kansas Medical Center, 3901 Rainbow Blvd, Kansas City, KS 66160.
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Kırmızıtaş Aydoğdu A, Özdemir A. Relationship Between the Type of Allergen and Night Sweat in Allergic Children. Cureus 2023; 15:e48174. [PMID: 38046775 PMCID: PMC10693384 DOI: 10.7759/cureus.48174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/01/2023] [Indexed: 12/05/2023] Open
Abstract
BACKGROUND Atopic diseases can accompany allergic sensitization. The amount of allergen is as important to know since allergen exposure affects sensitization development. Some allergic children complain of intense sweating during the first few hours of transition to sleep especially at night. This study was carried out to investigate the relationship between the type of allergen to which children are sensitized and night sweating. METHODS Children aged two to 18 years old with single allergic sensitization were included. A specific immunoglobulin E (IgE) skin prick test results were obtained from the medical records of the patients. Then, the patients' families were asked to evaluate the levels of sweating from 0 to 10 with the Visual Analogue Scale (VAS) questionnaire and the Sleep Disturbance Scale for Children (SDSC). RESULTS Sensitization to mites was more prevalent in the group of patients with night sweating (p<0.001), and pollen allergy was more prevalent in the group of patients without night sweating (p<0.001). Conclusion: The amount of mites and wetness in bed sheets might be responsible for allergic sensitization. A change in clothes and bed sheets for those with intense sweating might ensure better sleep and reduce the severity of the atopic symptoms. Such a recommendation might provide a better clinical outcome in these patients.
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Affiliation(s)
| | - Ali Özdemir
- Pediatric Pulmonology, Mersin City Training and Research Hospital, Mersin, TUR
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18
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Hawthorne IJ, Dunbar H, Tunstead C, Schorpp T, Weiss DJ, Enes SR, Dos Santos CC, Armstrong ME, Donnelly SC, English K. Human macrophage migration inhibitory factor potentiates mesenchymal stromal cell efficacy in a clinically relevant model of allergic asthma. Mol Ther 2023; 31:3243-3258. [PMID: 37735872 PMCID: PMC10638061 DOI: 10.1016/j.ymthe.2023.09.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Revised: 08/28/2023] [Accepted: 09/14/2023] [Indexed: 09/23/2023] Open
Abstract
Current asthma therapies focus on reducing symptoms but fail to restore existing structural damage. Mesenchymal stromal cell (MSC) administration can ameliorate airway inflammation and reverse airway remodeling. However, differences in patient disease microenvironments seem to influence MSC therapeutic effects. A polymorphic CATT tetranucleotide repeat at position 794 of the human macrophage migration inhibitory factor (hMIF) gene has been associated with increased susceptibility to and severity of asthma. We investigated the efficacy of human MSCs in high- vs. low-hMIF environments and the impact of MIF pre-licensing of MSCs using humanized MIF mice in a clinically relevant house dust mite (HDM) model of allergic asthma. MSCs significantly attenuated airway inflammation and airway remodeling in high-MIF-expressing CATT7 mice but not in CATT5 or wild-type littermates. Differences in efficacy were correlated with increased MSC retention in the lungs of CATT7 mice. MIF licensing potentiated MSC anti-inflammatory effects at a previously ineffective dose. Mechanistically, MIF binding to CD74 expressed on MSCs leads to upregulation of cyclooxygenase 2 (COX-2) expression. Blockade of CD74 or COX-2 function in MSCs prior to administration attenuated the efficacy of MIF-licensed MSCs in vivo. These findings suggest that MSC administration may be more efficacious in severe asthma patients with high MIF genotypes (CATT6/7/8).
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Affiliation(s)
- Ian J Hawthorne
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare, Ireland; Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Hazel Dunbar
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare, Ireland; Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Courteney Tunstead
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare, Ireland; Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Tamara Schorpp
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare, Ireland; Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland
| | - Daniel J Weiss
- Department of Medicine, 226 Health Sciences Research Facility, Larner College of Medicine, University of Vermont, Burlington, VT 05405, USA
| | - Sara Rolandsson Enes
- Department of Experimental Medical Science, Faculty of Medicine, Lund University, 22100 Lund, Sweden
| | - Claudia C Dos Santos
- The Keenan Research Centre for Biomedical Science of St. Michael's Hospital, 30 Bond Street, Toronto, ON, Canada; Institute of Medical Sciences and Interdepartmental Division of Critical Care, Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | | | | | - Karen English
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Co. Kildare, Ireland; Department of Biology, Maynooth University, Maynooth, Co. Kildare, Ireland.
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Okamoto Y, Kato M, Ishii K, Sato Y, Hata T, Asaka Y. Safety and effectiveness of a 300 IR house dust mite sublingual tablet: descriptive 4-year final analysis of a post-marketing surveillance in Japan. Immunotherapy 2023; 15:1401-1414. [PMID: 37727966 DOI: 10.2217/imt-2023-0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2023] Open
Abstract
Background: Data are limited for clinical outcomes with house dust mite (HDM) allergen immunotherapy beyond 2 years' observation. Materials & methods: A post-marketing drug-use survey assessed the safety and effectiveness of the 300 index of reactivity (IR) HDM tablet during use for up to 4 years in Japan. Results: 538 patients were evaluable for safety and 383 for effectiveness. Most adverse drug reactions (ADRs) occurred early and were local reactions; 5.6% of 249 total events were reported during years 2 to 4 as new ADRs after the interim analysis. The CAP-RAST score was identified as a potential risk factor for ADRs. The proportion of evaluable patients with severe allergic rhinitis symptoms decreased from 46.4% at baseline (n = 317) to 1.0% at 4 years (n = 104). Patients (n = 16) who discontinued 300 IR HDM tablet due to symptomatic improvement had sustained improvement relative to baseline 1 to 2 years later. Conclusion: Long-term use of the 300 IR HDM tablet is safe and effective.
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Affiliation(s)
- Yoshitaka Okamoto
- Chiba University, Chiba, 260-8670 & Chiba Rosai Hospital, Chiba, 290-0003, Japan
| | - Moe Kato
- Shionogi Pharmacovigilance Center Co., Ltd, Osaka, 541-0045, Japan
| | - Kiyonori Ishii
- Shionogi Pharmacovigilance Center Co., Ltd, Osaka, 541-0045, Japan
| | - Yumi Sato
- Medical Affairs Department, Shionogi & Co., Ltd, Osaka, 541-0045, Japan
| | - Tomohisa Hata
- Pharmacovigilance Department, Shionogi & Co., Ltd, Osaka, 541-0042, Japan
| | - Yuta Asaka
- Pharmacovigilance Department, Shionogi & Co., Ltd, Osaka, 541-0042, Japan
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Merk VM, Phan TS, Wiedmann A, Hardy RS, Lavery GG, Brunner T. Local glucocorticoid synthesis regulates house dust mite-induced airway hypersensitivity in mice. Front Immunol 2023; 14:1252874. [PMID: 37936704 PMCID: PMC10626452 DOI: 10.3389/fimmu.2023.1252874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 10/11/2023] [Indexed: 11/09/2023] Open
Abstract
Background Extra-adrenal glucocorticoid (GC) synthesis at epithelial barriers, such as skin and intestine, has been shown to be important in the local regulation of inflammation. However, the role of local GC synthesis in the lung is less well studied. Based on previous studies and the uncontentious efficacy of corticosteroid therapy in asthma patients, we here investigated the role of 11β-hydroxysteroid dehydrogenase 1 (11β-HSD1/Hsd11b1)-dependent local GC reactivation in the regulation of allergic airway inflammation. Methods Airway inflammation in Hsd11b1-deficient and C57BL/6 wild type mice was analyzed after injection of lipopolysaccharide (LPS) and anti-CD3 antibody, and in acute and chronic models of airway hypersensitivity induced by house dust mite (HDM) extract. The role of 11β-HSD1 in normal and inflammatory conditions was assessed by high dimensional flow cytometry, histological staining, RT-qPCR analysis, ex vivo tissue cultures, GC-bioassays and protein detection by ELISA and immunoblotting. Results Here we show that lung tissue from Hsd11b1-deficient mice synthesized significantly less GC ex vivo compared with wild type animals in response to immune cell stimulation. We further observed a drastically aggravated phenotype in Hsd11b1-deficient mice treated with HDM extract compared to wild type animals. Besides eosinophilic infiltration, Hsd11b1-deficient mice exhibited aggravated neutrophilic infiltration caused by a strong Th17-type immune response. Conclusion We propose an important role of 11β-HSD1 and local GC in regulating Th17-type rather than Th2-type immune responses in HDM-induced airway hypersensitivity in mice by potentially controlling Toll-like receptor 4 (TLR4) signaling and cytokine/chemokine secretion by airway epithelial cells.
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Affiliation(s)
- Verena M. Merk
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Truong San Phan
- Department of Biology, University of Konstanz, Konstanz, Germany
- Department of Systems Immunology, Weizmann Institute of Science, Rehovot, Israel
| | - Alice Wiedmann
- Department of Biology, University of Konstanz, Konstanz, Germany
| | - Rowan S. Hardy
- Institute of Clinical Sciences, University of Birmingham, Birmingham, United Kingdom
| | - Gareth G. Lavery
- Department of Biosciences, Nottingham Trent University, Nottingham, United Kingdom
| | - Thomas Brunner
- Department of Biology, University of Konstanz, Konstanz, Germany
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21
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Feng X, Liu J. A novel dose-adjustment protocol for interrupted subcutaneous immunotherapy for allergic rhinitis. Immunotherapy 2023; 15:1171-1181. [PMID: 37585664 DOI: 10.2217/imt-2023-0051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/18/2023] Open
Abstract
Background: This study aimed to develop a novel dose strategy for subcutaneous immunotherapy to reduce medical waste and financial burdens for patients who are required to restart subcutaneous immunotherapy. Patients & methods: A prospective, nonrandomized concurrent controlled trial was performed to assess the safety and advantages of the novel dose-adjustment protocol compared with the conventional one. 76 subjects were grouped to receive novel or conventional dose-adjustment protocols. Results: The injections, visits and time needed to reach the pre-established dose with the novel regimen were decreased. Furthermore, there were no differences in side reactions between the two groups. Conclusion: The novel protocol seemed safe and well tolerated, offering the advantages of time efficiency and reduced healthcare costs.
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Affiliation(s)
- Xian Feng
- Department of Otolaryngology, Affiliated Eye Ear Nose & Throat Hospital, Fudan University, No. 83, Fenyang Road, Shanghai, 200031, PR China
| | - Juan Liu
- Department of Otolaryngology, Affiliated Eye Ear Nose & Throat Hospital, Fudan University, No. 83, Fenyang Road, Shanghai, 200031, PR China
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22
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Mansur AH, Marsh J, Bahron A, Thomas M, Walters G, Busby J, Heaney LG, Krishna MT. Difficult-to-treat asthma patients from ethnic minority groups in central England are at an enhanced risk of house dust mite sensitisation. Clin Transl Allergy 2023; 13:e12303. [PMID: 37876034 PMCID: PMC10560749 DOI: 10.1002/clt2.12303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2023] [Revised: 08/15/2023] [Accepted: 09/13/2023] [Indexed: 10/26/2023] Open
Abstract
BACKGROUND House dust mite (HDM) is the most common sensitising allergen in asthma. Ethnic minority groups (EMGs) in the UK are more likely to live in deprived conditionings with a greater exposure to HDM and other aero-allergens. AIM To compare the ethnicity-based patterns of sensitisation to aero-allergens and the impact of ethnicity on clinical outcomes in patients with difficult-to-treat asthma (DTA). METHODS Data of patients with DTA were extracted from the registry of the Birmingham Regional Severe Asthma Service (BRSAS), which have a catchment population of 7.3million from Central England. Patients from White and EMG backgrounds were compared in terms of the prevalence of atopy, total serum immunoglobulin E (IgE), specific serum IgE (ssIgE) and asthma related clinical outcomes. Logistic regression analysis was conducted to explore ethnicity-based risk factors for HDM sensitisation. RESULTS A total of 1272 patients [White 1016 (79.9%), EMG 256 (20.1%) EMG] with a median age of 51 years (range 16-97) were included in the analysis. Patients from EMG were more likely (64%) to reside in the worst scale of index of multiple deprivation (IMD) than the White patients (25.5%), p < 0.0001. Positive HDM sensitisation was more prevalent in the EMG than in the White group [142/216 (66%) versus 375/842 (45%), p < 0.0001]. The median HDM ssIgE level was higher in the EMG than in the White group [3.0 KUA/L (IQR 0.06, 11.5) versus 0.1 (0.01, 3.0), p < 0.000001]. The odds ratio for positive sensitisation to HDM conveyed by the EMG status was 2.61 (95%CI, 1.8-3.8), p < 0.0001. Compared to the White group, the EMG had higher median total serum IgE [326 KU/L (115, 971) versus 114 (29.8, 434.8), p < 0.000001], higher blood eosinophil count (0.36 × 109 (0.18, 0.62) versus 0.23 (0.1,0.47), p < 0.000001), were marginally more atopic (79.2% vs. 75.6%, p = 0.098) and were less likely to being on maintenance oral corticosteroids (22% vs. 39.7%, p < 0.0001). CONCLUSION In this DTA cohort, positive HDM sensitisation was greater amongst the EMG than the White patients. The EMG status was a significant risk factor for HDM sensitisation.
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Affiliation(s)
- Adel H. Mansur
- Birmingham Regional Severe Asthma ServiceBirmingham Heartland HospitalUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUK
- Institute of Inflammation and AgeingUniversity of BirminghamBirminghamUK
| | - Julie Marsh
- Birmingham Regional Severe Asthma ServiceBirmingham Heartland HospitalUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUK
| | - Ali Bahron
- Birmingham Regional Severe Asthma ServiceBirmingham Heartland HospitalUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUK
| | - Maximillian Thomas
- Birmingham Regional Severe Asthma ServiceBirmingham Heartland HospitalUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUK
| | - Gareth Walters
- Birmingham Regional Severe Asthma ServiceBirmingham Heartland HospitalUniversity Hospitals Birmingham NHS Foundation TrustBirminghamUK
| | - John Busby
- Centre for Public HealthSchool of MedicineDentistry and Biomedical SciencesQueens University BelfastBelfastUK
| | - Liam G. Heaney
- Wellcome‐Wolfson Centre for Experimental MedicineSchool of MedicineDentistry and Biomedical SciencesQueen's University BelfastBelfastUK
| | - Mamidipudi Thirumala Krishna
- Institute of Immunology and ImmunotherapyUniversity of Birminghamand University Hospitals Birmingham NHS Foundation TrustBirminghamUK
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Rodriguez‐Plata E, Callero Viera A, Ruiz‐Garcia M, Gomez‐Cardenosa A, Nieto E, García‐Robaina JC. House dust mite subcutaneous immunotherapy has sustained long-term effectiveness on allergic rhinitis and asthma: A 10-year follow-up. Immun Inflamm Dis 2023; 11:e1004. [PMID: 37904678 PMCID: PMC10571497 DOI: 10.1002/iid3.1004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 08/29/2023] [Accepted: 08/30/2023] [Indexed: 11/01/2023] Open
Abstract
BACKGROUND Maintenance doses for allergen immunotherapy (AIT) have been recommended for at least 3 years but little data on long-term efficacy is available depending on AIT duration. To show sustained efficacy 10 years after completion of treatment with depigmented-polymerized house dust mite (dpg-pol HDM) allergen extract in adults with asthma and/or rhinoconjunctivitis. METHODS Patients included in a double-blind placebo-controlled AIT study with dpg-pol HDM allergen extract were reviewed at completion of the perennial treatment and 10-year follow-up (10y-FU). Change in symptom and rescue medication score was the primary objective. Visual analog scale (VAS), asthma control test (ACT), and degree of disease control were the secondary objectives. A comparative analysis between patients who underwent AIT treatment for <3 years and ≥3 years was performed. RESULTS Data from 31 patients (mean age 38 years) were available at 10y-FU. All had asthma and 29 had rhinoconjunctivitis at baseline. Twenty-three patients were treated ≥3 years and 8 for <3 years. Seventeen (55%) patients were asymptomatic at completion of AIT, with significant differences for nasal, conjunctival, and bronchial symptoms (p < .0001) compared with baseline only in those patients treated ≥3 years. Nine (52.9%) patients remained completely asymptomatic at 10y-FU, all were treated for ≥3 years. Moreover, significant reduction in the number of patients with rhinitis (p = .0117), conjunctivitis (p < .0001), and bronchial (p = .0005) symptoms was observed at 10y-FU compared with baseline only in the ≥3 years treated. Ten (32.3%) patients did not require any rescue medication at 10y-FU, all had been treated for ≥3 years. ACT at 10y-FU showed a good control of asthma (median 23.5; 95% IC[22.0, 25.0]). No significant differences were observed between VAS at end of treatment compared with VAS at 10y-FU. CONCLUSIONS Sustained clinical efficacy is achieved 10 years after completion of depigmented-polymerized HDM, however, these findings were observed only if patients are treated for at least 3 years.
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Affiliation(s)
- Elena Rodriguez‐Plata
- Allergy DepartmentHospital Universitario Nuestra Señora de CandelariaSanta Cruz de TenerifeSpain
| | - Ariel Callero Viera
- Allergy DepartmentHospital Universitario Nuestra Señora de CandelariaSanta Cruz de TenerifeSpain
| | | | | | - Eva Nieto
- Medical Affairs and Clinical DepartmentLETI PharmaMadridSpain
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24
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Schneble D, El-Gazzar A, Kargarpour Z, Kramer M, Metekol S, Stoshikj S, Idzko M. Cell-type-specific role of P2Y2 receptor in HDM-driven model of allergic airway inflammation. Front Immunol 2023; 14:1209097. [PMID: 37790940 PMCID: PMC10543084 DOI: 10.3389/fimmu.2023.1209097] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Accepted: 08/28/2023] [Indexed: 10/05/2023] Open
Abstract
Allergic airway inflammation (AAI) is a chronic respiratory disease that is considered a severe restriction in daily life and is accompanied by a constant risk of acute aggravation. It is characterized by IgE-dependent activation of mast cells, infiltration of eosinophils, and activated T-helper cell type 2 (Th2) lymphocytes into airway mucosa. Purinergic receptor signaling is known to play a crucial role in inducing and maintaining allergic airway inflammation. Previous studies in an ovalbumin (OVA)-alum mouse model demonstrated a contribution of the P2Y2 purinergic receptor subtype (P2RY2) in allergic airway inflammation. However, conflicting data concerning the mechanism by which P2RY2 triggers AAI has been reported. Thus, we aimed at elucidating the cell-type-specific role of P2RY2 signaling in house dust mite (HDM)-driven model of allergic airway inflammation. Thereupon, HDM-driven AAI was induced in conditional knockout mice, deficient or intact for P2ry2 in either alveolar epithelial cells, hematopoietic cells, myeloid cells, helper T cells, or dendritic cells. To analyze the functional role of P2RY2 in these mice models, flow cytometry of bronchoalveolar lavage fluid (BALF), cytokine measurement of BALF, invasive lung function measurement, HDM re-stimulation of mediastinal lymph node (MLN) cells, and lung histology were performed. Mice that were subjected to an HDM-based model of allergic airway inflammation resulted in reduced signs of acute airway inflammation including eosinophilia in BALF, peribronchial inflammation, Th2 cytokine production, and bronchial hyperresponsiveness in mice deficient for P2ry2 in alveolar epithelial cells, hematopoietic cells, myeloid cells, or dendritic cells. Furthermore, the migration of bone-marrow-derived dendritic cells and bone-marrow-derived monocytes, both deficient in P2ry2, towards ATP was impaired. Additionally, we found reduced levels of MCP-1/CCL2 and IL-8 homologues in the BALF of mice deficient in P2ry2 in myeloid cells and lower concentrations of IL-33 in the lung tissue of mice deficient in P2ry2 in alveolar epithelial cells. In summary, our results show that P2RY2 contributes to HDM-induced airway inflammation by mediating proinflammatory cytokine production in airway epithelial cells, monocytes, and dendritic cells and drives the recruitment of lung dendritic cells and monocytes.
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Affiliation(s)
- Dominik Schneble
- Department of Pneumology, Medical Center – University of Freiburg, Freiburg, Germany
| | - Ahmed El-Gazzar
- Department of Pulmonology, Medical University of Vienna, Vienna, Austria
| | - Zahra Kargarpour
- Department of Pulmonology, Medical University of Vienna, Vienna, Austria
| | - Markus Kramer
- Department of Pulmonology, Medical University of Vienna, Vienna, Austria
| | - Seda Metekol
- Department of Pulmonology, Medical University of Vienna, Vienna, Austria
| | - Slagjana Stoshikj
- Department of Pulmonology, Medical University of Vienna, Vienna, Austria
| | - Marco Idzko
- Department of Pneumology, Medical Center – University of Freiburg, Freiburg, Germany
- Department of Pulmonology, Medical University of Vienna, Vienna, Austria
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25
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Altaş U, Altaş ZM, Ercan N, Özkars MY. The Effect of House Dust Sensitization on Skin Sebum and Moisture in Children with Allergic Respiratory Diseases. Children (Basel) 2023; 10:1483. [PMID: 37761444 PMCID: PMC10529035 DOI: 10.3390/children10091483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Revised: 08/23/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023]
Abstract
This study aimed to investigate the levels of skin moisture and sebum in children with a house dust allergy without skin symptoms. This was a case-control study involving children, aged 0-18 years, who were being followed up for an allergic airway disease in a pediatric allergy clinic. Age, gender, hemogram parameters, and IgE values were evaluated. The skin moisture and sebum percentages of the patients and control group were measured by a non-invasive bioimpedance method using a portable digital skin moisture and sebum measurement device on the cubital fossa. The median value of the skin moisture percentage in the house dust mite allergy-positive patient group was significantly lower than that in the house dust mite allergy-negative patients and the control group (p < 0.001). The house dust mite allergy-positive patient group had the lowest skin sebum content. However, there was no statistical significance among the groups in terms of skin sebum percentage (p = 0.102). In the study, children with a house dust allergy were found to have lower levels of skin moisture and sebum. The regular use of moisturizers for children with a house dust allergy should be kept in mind as an effective solution to protect the skin barrier and reduce skin symptoms.
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Affiliation(s)
- Uğur Altaş
- Department of Pediatric Allergy and Immunology, Ümraniye Training and Research Hospital, University of Health Sciences, Ümraniye, 34764 Istanbul, Türkiye;
| | - Zeynep Meva Altaş
- Ümraniye District Health Directorate, Ümraniye, 34764 Istanbul, Türkiye;
| | - Nazlı Ercan
- Department of Pediatric Allergy and Immunology, Gülhane Education and Research Hospital, University of Health Sciences, Etlik, 06010 Ankara, Türkiye;
- Department of Pediatric Allergy and Immunology, Istinye University Faculty of Medicine, Zeytinburnu, 34010 Istanbul, Türkiye
| | - Mehmet Yaşar Özkars
- Department of Pediatric Allergy and Immunology, Ümraniye Training and Research Hospital, University of Health Sciences, Ümraniye, 34764 Istanbul, Türkiye;
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26
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Yamamoto R, Izawa K, Ando T, Kaitani A, Tanabe A, Yamada H, Uchida S, Yoshikawa A, Kume Y, Toriumi S, Maehara A, Wang H, Nagamine M, Negishi N, Nakano N, Ebihara N, Shimizu T, Ogawa H, Okumura K, Kitaura J. Murine model identifies tropomyosin as IgE cross-reactive protein between house dust mite and coho salmon that possibly contributes to the development of salmon allergy. Front Immunol 2023; 14:1238297. [PMID: 37711608 PMCID: PMC10498769 DOI: 10.3389/fimmu.2023.1238297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 08/14/2023] [Indexed: 09/16/2023] Open
Abstract
Background Recently, we have developed a method to identify IgE cross-reactive allergens. However, the mechanism by which IgE cross-reactive allergens cause food allergy is not yet fully understood how. In this study, we aimed to understand the underlying pathogenesis by identifying food allergens that cross-react with house dust mite allergens in a murine model. Material and methods Allergenic protein microarray analysis was conducted using serum from mice intraperitoneally injected with Dermatophagoides pteronyssinus (Der p) extract plus alum or alum alone as controls. Der p, Dermatophagoides farinae (Der f), coho salmon extract-sensitized and control mice were analyzed. Serum levels of IgE against Der p, Der f, coho salmon extract, protein fractions of coho salmon extract separated by ammonium sulfate precipitation and anion exchange chromatography, and recombinant coho salmon tropomyosin or actin were measured by an enzyme-linked immunosorbent assay. A murine model of cutaneous anaphylaxis or oral allergy syndrome (OAS) was established in Der p extract-sensitized mice stimulated with coho salmon extract, tropomyosin, or actin. Results Protein microarray analysis showed that coho salmon-derived proteins were highly bound to serum IgE in Der p extract-sensitized mice. Serum IgE from Der p or Der f extract-sensitized mice was bound to coho salmon extract, whereas serum IgE from coho salmon extract-sensitized mice was bound to Der p or Der f extract. Analysis of the murine model showed that cutaneous anaphylaxis and oral allergic reaction were evident in Der p extract-sensitized mice stimulated by coho salmon extract. Serum IgE from Der p or Der f extract-sensitized mice was bound strongly to protein fractions separated by anion exchange chromatography of coho salmon proteins precipitated with 50% ammonium sulfate, which massively contained the approximately 38 kDa protein. We found that serum IgE from Der p extract-sensitized mice was bound to recombinant coho salmon tropomyosin. Der p extract-sensitized mice exhibited cutaneous anaphylaxis in response to coho salmon tropomyosin. Conclusion Our results showed IgE cross-reactivity of tropomyosin between Dermatophagoides and coho salmon which illustrates salmon allergy following sensitization with the house dust mite Dermatophagoides. Our method for identifying IgE cross-reactive allergens will help understand the underlying mechanisms of food allergies.
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Affiliation(s)
- Risa Yamamoto
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Kumi Izawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Tomoaki Ando
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ayako Kaitani
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Atsushi Tanabe
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hiromichi Yamada
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Shino Uchida
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Gastroenterology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akihisa Yoshikawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Otorhinolaryngology, Juntendo University Graduate School of Medicine, Bunkyo, Tokyo, Japan
| | - Yasuharu Kume
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, Japan
| | - Shun Toriumi
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Akie Maehara
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hexing Wang
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Science of Allergy and Inflammation, Juntendo University Graduate School of Medicine, Bunkyo, Tokyo, Japan
| | - Masakazu Nagamine
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Naoko Negishi
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobuhiro Nakano
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Nobuyuki Ebihara
- Department of Ophthalmology, Juntendo University Urayasu Hospital, Urayasu, Chiba, Japan
| | - Toshiaki Shimizu
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Pediatrics and Adolescent Medicine, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Hideoki Ogawa
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Ko Okumura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Jiro Kitaura
- Atopy (Allergy) Research Center, Juntendo University Graduate School of Medicine, Tokyo, Japan
- Department of Science of Allergy and Inflammation, Juntendo University Graduate School of Medicine, Bunkyo, Tokyo, Japan
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Pfisterer K, Wielscher M, Samardzic D, Weinzettl P, Symmank D, Shaw LE, Campana R, Huang HJ, Farlik M, Bangert C, Vrtala S, Valenta R, Weninger W. Non-IgE-reactive allergen peptides deteriorate the skin barrier in house dust mite-sensitized atopic dermatitis patients. Front Cell Dev Biol 2023; 11:1240289. [PMID: 37675143 PMCID: PMC10478000 DOI: 10.3389/fcell.2023.1240289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 08/04/2023] [Indexed: 09/08/2023] Open
Abstract
Atopic dermatitis (AD) is a chronic inflammatory skin disease characterized by type 2 cytokine-driven skin inflammation and epithelial barrier dysfunction. The latter is believed to allow the increased penetration of chemicals, toxins, and allergens into the skin. House dust mite allergens, particularly Der p 2, are important triggers in sensitized individuals with AD; the precise actions of these allergens in epithelial biology remain, however, incompletely understood. In this study, we compared the effects of the protein allergen Der p 2 and a mix of non-IgE-reactive Der p 2 peptides on skin cells using patch tests in AD patients and healthy participants. We then analyzed mRNA expression profiles of keratinocytes by single-cell RNA-sequencing. We report that existing barrier deficiencies in the non-lesional skin of AD patients allow deep penetration of Der p 2 and its peptides, leading to local microinflammation. Der p 2 protein specifically upregulated genes involved in the innate immune system, stress, and danger signals in suprabasal KC. Der p 2 peptides further downregulated skin barrier genes, in particular the expression of genes involved in cell-matrix and cell-cell adhesion. Peptides also induced genes involved in hyperproliferation and caused disturbances in keratinocyte differentiation. Furthermore, inflammasome-relevant genes and IL18 were overexpressed, while KRT1 was downregulated. Our data suggest that Der p 2 peptides contribute to AD initiation and exacerbation by augmenting hallmark features of AD, such as skin inflammation, barrier disruption, and hyperplasia of keratinocytes.
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Affiliation(s)
- Karin Pfisterer
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Matthias Wielscher
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - David Samardzic
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Pauline Weinzettl
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Dorte Symmank
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Lisa E. Shaw
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Raffaela Campana
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology, and Immunology, Medical University of Vienna, Vienna, Austria
| | - Huey-Jy Huang
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology, and Immunology, Medical University of Vienna, Vienna, Austria
- Karl Landsteiner University of Health Sciences, Krems, Austria
| | - Matthias Farlik
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Christine Bangert
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
| | - Susanne Vrtala
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology, and Immunology, Medical University of Vienna, Vienna, Austria
| | - Rudolf Valenta
- Department of Pathophysiology and Allergy Research, Center for Pathophysiology, Infectiology, and Immunology, Medical University of Vienna, Vienna, Austria
| | - Wolfgang Weninger
- Department of Dermatology, Medical University of Vienna, Vienna, Austria
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28
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Dunbar H, Hawthorne IJ, Tunstead C, Armstrong ME, Donnelly SC, English K. Blockade of MIF biological activity ameliorates house dust mite-induced allergic airway inflammation in humanized MIF mice. FASEB J 2023; 37:e23072. [PMID: 37498233 DOI: 10.1096/fj.202300787r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 05/26/2023] [Accepted: 06/21/2023] [Indexed: 07/28/2023]
Abstract
Macrophage migration inhibitory factor (MIF) expression is controlled by a functional promoter polymorphism, where the number of tetranucleotide repeats (CATTn ) corresponds to the level of MIF expression. To examine the role of this polymorphism in a pre-clinical model of allergic asthma, novel humanized MIF mice with increasing CATT repeats (CATT5 and CATT7 ) were used to generate a physiologically relevant scale of airway inflammation following house dust mite (HDM) challenge. CATT7 mice expressing high levels of human MIF developed an aggressive asthma phenotype following HDM challenge with significantly elevated levels of immune cell infiltration, production of inflammatory mediators, goblet cell hyperplasia, subepithelial collagen deposition, and airway resistance compared to wild-type controls. Importantly the potent MIF inhibitor SCD-19 significantly mitigated the pathophysiology observed in CATT7 mice after HDM challenge, demonstrating the fundamental role of endogenous human MIF expression in the severity of airway inflammation in vivo. Up to now, there are limited reproducible in vivo models of asthma airway remodeling. Current asthma medications are focused on reducing the acute inflammatory response but have limited effects on airway remodeling. Here, we present a reproducible pre-clinical model that capitulates asthma airway remodeling and suggests that in addition to having pro-inflammatory effects MIF may play a role in driving airway remodeling.
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Affiliation(s)
- Hazel Dunbar
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Ireland
- Department of Biology, Maynooth University, Maynooth, Ireland
| | - Ian J Hawthorne
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Ireland
- Department of Biology, Maynooth University, Maynooth, Ireland
| | - Courteney Tunstead
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Ireland
- Department of Biology, Maynooth University, Maynooth, Ireland
| | - Michelle E Armstrong
- Department of Medicine, Trinity College Dublin, Tallaght University Hospital, Co., Dublin, Ireland
| | - Seamas C Donnelly
- Department of Medicine, Trinity College Dublin, Tallaght University Hospital, Co., Dublin, Ireland
| | - Karen English
- Kathleen Lonsdale Institute for Human Health Research, Maynooth University, Maynooth, Ireland
- Department of Biology, Maynooth University, Maynooth, Ireland
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29
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Zheng C, Xu H, Huang S, Chen Z. Efficacy and safety of subcutaneous immunotherapy in asthmatic children allergic to house dust mite: a meta-analysis and systematic review. Front Pediatr 2023; 11:1137478. [PMID: 37397157 PMCID: PMC10310999 DOI: 10.3389/fped.2023.1137478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 06/01/2023] [Indexed: 07/04/2023] Open
Abstract
Background Subcutaneous immunotherapy (SCIT) has been proved to be effective and safe in adult asthma. But it is still controversial in children. Object To evaluate the efficacy and safety of SCIT in asthmatic children with allergy to house dust mite. Method We searched the databases of Cochrane Library, EMBASE and MEDLINE (from 1 January 1990 to 1 December 2022). Two reviewers independently screened studies, extracted data and critically appraised the risk of bias. We used the Revman 5 to synthesize the effect sizes. Results We finally selected 38 eligible studies including 21 randomized controlled trials to evaluate the efficacy and safety of SCIT and 17 observational studies to assess the safety. The results revealed that short-term asthma symptom scores were declined with a standardized mean difference (SMD) of -1.19 (95% CI: -1.87, -0.50) in 12 researches with high heterogeneity. Short-term asthma medication scores were decreased with SMD -1.04 (95% CI: -1.54, -0.54) in 12 heterogeneous researches. One study showed no significant reduction in combined symptom and medication scores without providing details. No studies we reviewed reported long-term efficacy. SCIT resulted in an obviously increased risk of adverse reactions compared with placebo. For secondary outcomes, SCIT improved life quality and reduced the numbers of annual asthma attacks and allergen-specific airway hyperreactivity, but without significant improvement in pulmonary function, asthma control or hospitalization. Conclusions SCIT can reduce the short-term symptom scores and medication scores regardless of different treatment duration or mono/polysensitization, but with an increased incidence of local and systemic adverse effects. Further studies on pediatric asthma are needed to evaluate the long-term efficacy, and clarify the effectiveness of SCIT in specific population using mix allergen extracts or with severe asthma. Overall, it is recommended for children with mild-moderate HDM-driven allergic asthma.
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Huang C, Zheng D, Fu C, Cai Z, Zhang H, Xie Z, Luo L, Li H, Huang Y, Chen J. Secreted S100A4 causes asthmatic airway epithelial barrier dysfunction induced by house dust mite extracts via activating VEGFA/VEGFR2 pathway. Environ Toxicol 2023; 38:1431-1444. [PMID: 36883729 DOI: 10.1002/tox.23776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 02/21/2023] [Accepted: 02/25/2023] [Indexed: 05/18/2023]
Abstract
The airway epithelial barrier dysfunction plays a crucial role in pathogenesis of asthma and causes the amplification of downstream inflammatory signal pathway. S100 calcium binding protein A4 (S100A4), which promotes metastasis, have recently been discovered as an effective inflammatory factor and elevated in bronchoalveolar lavage fluid in asthmatic mice. Vascular endothelial growth factor-A (VEGFA), is considered as vital regulator in vascular physiological activities. Here, we explored the probably function of S100A4 and VEGFA in asthma model dealt with house dust mite (HDM) extracts. Our results showed that secreted S100A4 caused epithelial barrier dysfunction, airway inflammation and the release of T-helper 2 cytokines through the activation of VEGFA/VEGFR2 signaling pathway, which could be partial reversed by S100A4 polyclonal antibody, niclosamide and S100A4 knockdown, representing a potential therapeutic target for airway epithelial barrier dysfunction in asthma.
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Affiliation(s)
- Chaowen Huang
- Department of Pulmonary and Critical Care Medicine, Jiangmen Institute of Respiratory Disease, Jiangmen Central Hospital, Jiangmen, China
| | - Dongyan Zheng
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Chunlai Fu
- Department of Emergency Intensive Care Unit, Affiliated Dongguan People's Hospital, Southern Medical University, Dongguan, China
| | - Ziwei Cai
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - He Zhang
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Zhefan Xie
- Department of Emergency Intensive Care Unit, Affiliated Dongguan People's Hospital, Southern Medical University, Dongguan, China
| | - Lishan Luo
- Department of Respiratory and Critical Care Medicine, Huizhou Municipal Central Hospital, Huizhou, China
| | - Huifang Li
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
| | - Yanming Huang
- Department of Pulmonary and Critical Care Medicine, Jiangmen Institute of Respiratory Disease, Jiangmen Central Hospital, Jiangmen, China
| | - Jialong Chen
- Department of Environmental and Occupational Health, School of Public Health, Guangdong Medical University, Dongguan, China
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Asoudeh Moghanloo S, Forouzanfar M, Jafarinia M, Fazlollahi MR, Kardar GA. Allergen-specific immunotherapy by recombinant Der P1 allergen-derived peptide-based vaccine in an allergic mouse model. Immun Inflamm Dis 2023; 11:e878. [PMID: 37382249 DOI: 10.1002/iid3.878] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 05/10/2023] [Accepted: 05/13/2023] [Indexed: 06/30/2023] Open
Abstract
AIM Increased IgE levels have made house dust mite allergens one of the most frequent causes of allergies worldwide. Treatment reduces the IgE antibodies and types two cytokines, namely interleukin-4 (IL-4) and IL-13. Although existing treatments significantly reduce IgE or IL-4/IL-13, they are very costly. This study aimed to construct a recombinant protein derived from rDer p1 peptides in the form of an immunotherapy approach and to measure the response of IgE and IgG antibodies. METHODS The proteins were isolated, purified, and evaluated using the SDS-PAGE and Bradford test and confirmed by using Western blot. To evaluate immunotherapy efficiency, 24 BALB/C mice were sensitized intraperitoneally with house dust mites (HDM) adsorbed to Aluminum hydroxide (Alum) and randomly divided into four groups of six: control sensitized, HDM extract, rDer p1, and DpTTDp vaccine. To immunization, four groups of random mice were each treated with phosphate-buffered saline, 100 μg of rDer p1 protein, DpTTDp, or HDM extract, every 3 days. Direct ELISA determined HDM-specific IgG and IgE subclasses. Data were analyzed in SPSS and Graph pad prism software. Values of p < .05 were considered significant. RESULTS After immunization of mice, the rDer P1 and recombinant vaccine like HDM extract increased IgG antibody titer and decreased IgE-dependent reactivity in allergic mice to rDer P1. Also, the levels of inflammatory IL-4 and IL-13 cytokines as allergic stimulants decreased. CONCLUSION The use of present available recombinant proteins is considered a viable, cost-effective, and long-term option for providing effective HDM allergy immunotherapy vaccines without side effects.
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Affiliation(s)
- Soheila Asoudeh Moghanloo
- Department of Molecular Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
- Immunology, Asthma and Allergy Research Institute (IAARI), Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Forouzanfar
- Department of Molecular Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Mojtaba Jafarinia
- Department of Molecular Genetics, Marvdasht Branch, Islamic Azad University, Marvdasht, Iran
| | - Mohammad R Fazlollahi
- Immunology, Asthma and Allergy Research Institute (IAARI), Tehran University of Medical Sciences, Tehran, Iran
| | - Gholam Ali Kardar
- Immunology, Asthma and Allergy Research Institute (IAARI), Tehran University of Medical Sciences, Tehran, Iran
- Department of Medical Biotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Bzioueche H, Tamelghaghet M, Chignon-Sicard B, Bazile N, Hauchecorne P, Barbero Calderón M, Meunier P, Rocchi S, Passeron T, Tulic MK. Ceramide AD™ Restores Skin Integrity and Function following Exposure to House Dust Mite. Int J Mol Sci 2023; 24:ijms24119234. [PMID: 37298186 DOI: 10.3390/ijms24119234] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/12/2023] Open
Abstract
Ceramides are epidermal lipids important for normal skin barrier function. Reduced Ceramide content is associated with atopic dermatitis (AD). House dust mite (HDM) has been localized in AD skin where it plays an exacerbator role. We set to examine the impact of HDM on skin integrity and the effect of three separate Ceramides (AD™, DS, Y30) on HDM-induced cutaneous damage. The effect was tested in vitro on primary human keratinocytes and ex vivo on skin explants. HDM (100 μg/mL) decreased the expression of adhesion protein E-cadherin, supra-basal (K1, K10) and basal (K5, K14) keratins and increased matrix metallopeptidase (MMP)-9 activity. The presence of Ceramide AD™ in topical cream inhibited HDM-induced E-cadherin and keratin destruction and dampened MMP-9 activity ex vivo which was not seen for the control cream or cream containing DS or Y30 Ceramides. The efficacy of Ceramide AD™ was tested in a clinical setting on moderate to very dry skin (as surrogate for environment-induced skin damage). When applied topically for 21 days, Ceramide AD™ significantly reduced transepidermal water loss (TEWL) in patients with very dry skin compared to their TEWL baseline data. Our study demonstrates Ceramide AD™ cream to be effective in restoring skin homeostasis and barrier function in damaged skin and warrants testing in larger clinical trials for possible treatment of AD and xerosis.
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Affiliation(s)
- Hanene Bzioueche
- Team 12, Centre Méditerranéen de Médecine Moléculaire (C3M), Université Côte d'Azur, INSERM U1065, 150 Route de Ginestière, CEDEX 3, 06204 Nice, France
| | | | | | | | | | | | | | - Stéphane Rocchi
- Team 12, Centre Méditerranéen de Médecine Moléculaire (C3M), Université Côte d'Azur, INSERM U1065, 150 Route de Ginestière, CEDEX 3, 06204 Nice, France
| | - Thierry Passeron
- Team 12, Centre Méditerranéen de Médecine Moléculaire (C3M), Université Côte d'Azur, INSERM U1065, 150 Route de Ginestière, CEDEX 3, 06204 Nice, France
- Department of Dermatology, University Hospital of Nice, Côte d'Azur University, 06001 Nice, France
| | - Meri K Tulic
- Team 12, Centre Méditerranéen de Médecine Moléculaire (C3M), Université Côte d'Azur, INSERM U1065, 150 Route de Ginestière, CEDEX 3, 06204 Nice, France
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Li JD, Yin J. Interleukin-10-alveolar macrophage cell membrane-coated nanoparticles alleviate airway inflammation and regulate Th17/regulatory T cell balance in a mouse model. Front Immunol 2023; 14:1186393. [PMID: 37275919 PMCID: PMC10235466 DOI: 10.3389/fimmu.2023.1186393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 04/27/2023] [Indexed: 06/07/2023] Open
Abstract
Background Allergic airway disease (AAD) is a chronic disease characterized by airway inflammation, bronchoconstriction, and hyperresponsiveness. Although exogenous interleukin-10 (IL-10) alleviates allergic inflammation, it has a short half-life in vivo. Cell membrane-coated nanomaterials have been shown to protect therapeutic payloads and increase therapeutic efficacy. Objective This study was aimed at investigating the efficacy of a novel macrophage-based nanoparticle drug for the treatment of house dust mite (HDM)-induced allergic airway diseases. Methods IL-10-poly (lactic-co-glycolic acid (PLGA) nanoparticles were encapsulated in alveolar macrophage cell membranes. An allergic airway disease mouse model was established by repeated inhalation of HDM extracts. The mice were treated with free IL-10, IL-10-PLGA nanoparticles (IL10-NP), or IL-10-alveolar macrophage cell membrane-coated nanoparticles (IL10-AMNP). The therapeutic effects were evaluated by measuring airway hyperresponsiveness, lung inflammation, cytokine levels, and regulatory T cells (Treg)- T-helper 17 (Th17) cell balance. Results Compared to free IL-10, IL10-AMNP significantly reduced airway hyperresponsiveness and T-helper 2 (Th2)/Th17 cytokines and inhibited neutrophilia and eosinophilia recruitment into the airways of HDM-induced mouse models. Additionally, the balance between Tregs and Th17 cells was significantly improved in groups treated with IL10-AMNP. Conclusion This study demonstrated that PLGA nanoparticle cores coated with alveolar macrophage cell membranes can effectively deliver therapeutic cytokines to the lungs and improve the homeostatic balance between Tregs and Th17 cells. These findings suggest that macrophage-based nanoparticle drugs represent a promising approach for treating allergic airway diseases.
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Affiliation(s)
- Jun-Da Li
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, National Clinical Research Center for Dermatologic and Immunologic Disease, Beijing, China
| | - Jia Yin
- Department of Allergy, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Peking Union Medical College, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, Beijing Key Laboratory of Precision Medicine for Diagnosis and Treatment on Allergic Diseases, Beijing, China
- Department of Allergy, Peking Union Medical College Hospital, National Clinical Research Center for Dermatologic and Immunologic Disease, Beijing, China
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Zeng Z, Li S, Ye Y, Ling Y, Gong Y, Zi X, Yang J, McElwee KJ, Zhang X. Allergen desensitization reduces the severity of relapsed alopecia areata in dust-mite allergic patients. Exp Dermatol 2023. [PMID: 37114716 DOI: 10.1111/exd.14819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 04/09/2023] [Accepted: 04/11/2023] [Indexed: 04/29/2023]
Abstract
Atopy may be a facilitating factor in some alopecia areata (AA) patients with early disease onset and more severe/extensive AA. The underlying immune mechanisms are unknown, but allergen responses may support a pro-inflammatory environment that indirectly promotes AA. To investigate the long-term effect of allergen immunotherapy (AIT) against house dust mite (HDM) allergy on disease severity and prognosis for AA patients. An observational comparative effectiveness study was conducted on 69 AA patients with HDM allergy. 34 patients received conventional/traditional AA treatment (TrAA) plus AIT (AIT-TrAA), and 35 patients received TrAA alone. Serum total immunoglobulin E (tIgE), HDM specific IgE (sIgE), HDM specific IgG4 (sIgG4) and cytokines (IL-4, IL-5, IL-10, IL-12, IL-13, IL-33, IFNγ) were quantified in these patients, together with 58 non-allergic AA patients and 40 healthy controls. At the end of the 3-year desensitization course, the AIT-TrAA group presented with lower SALT scores than the TrAA group, especially in non-alopecia totalis/universalis (AT/U) patients and pre-adolescent AT/U patients (age ≤ 14). In patients with elevated tIgE levels before AIT, a decrease in tIgE was correlated to reduced extent of AA on completion of the AIT course. After desensitization, elevation of IL-5 and decrease of IL-33 were observed in HDM allergic-AA patients. Desensitization to HDM in allergic AA patients reduces the severity of relapse-related hair loss over the 3-year AIT treatment course, possibly via opposing Th2 dominance. This adjunctive treatment may help reduce disease severity and curtail the disease process in allergic patients with AA.
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Affiliation(s)
- Zixun Zeng
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
- Department of Dermatology, First Affiliated Hospital of Kunming Medical University, Kunming, P.R. China
| | - Shuifeng Li
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Yanting Ye
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Yunxia Ling
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Yugang Gong
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Xue Zi
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Jian Yang
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
| | - Kevin J McElwee
- Centre for Skin Sciences, University of Bradford, Bradford, UK
- Department of Dermatology and Skin Science, University of British Columbia, Vancouver, British Columbia, Canada
| | - Xingqi Zhang
- Department of Dermatology, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, P.R. China
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Jung CG, Cao TBT, Quoc QL, Yang EM, Ban GY, Park HS. Role of club cell 16-kDa secretory protein in asthmatic airways. Clin Exp Allergy 2023. [PMID: 37009718 DOI: 10.1111/cea.14315] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 03/08/2023] [Accepted: 03/16/2023] [Indexed: 04/04/2023]
Abstract
BACKGROUND Club cell 16-kDa secretory protein (CC16) is a pneumoprotein and functions as an anti-inflammatory or antioxidant protein. However, altered levels of serum CC16 as well as their effect on airways inflammation have not been fully evaluated. METHODS We recruited 63 adult asthmatics on maintenance medications and 61 healthy controls (HCs). The asthmatic subjects were divided into two groups according to the result of bronchodilator responsiveness (BDR) test: the present BDR (n = 17) and absent BDR (n = 46) groups. Serum CC16 levels were measured by ELISA. As an in vitro study, the effect of Dermatophagoides pteronyssinus antigen 1 (Der p1) on the production of CC16 in airways epithelial cells (AECs) according to a time-dependent manner was assessed; the effects of CC16 protein on oxidative stress system, airways inflammation and remodelling were tested. RESULTS Serum CC16 levels showed significantly higher in the asthmatics than in the HCs (p < .001) with a positive correlation with FEV1 % (r = .352, p = .005). The present BDR group had significantly lower levels of serum CC16, FEV1 % and MMEF%, but showed higher level of FeNO than the absent BDR group. Serum CC16 levels (below 496.0 ng/mL) could discriminate the present BDR group from the absent BDR group (area under the curve = 0.74, p = .004). In vitro testing demonstrated that Der p1 exposure significantly induced CC16 release from AECs for 1 h, which was progressively decreased after 6 h and followed by MMP-9 and TIMP-1 production. These findings were associated with oxidant/antioxidant disequilibrium and restored by CC16 treatment (but not dexamethasone). CONCLUSION Decreased CC16 production contributes to persistent airways inflammation and lung function decline. CC16 may be a potential biomarker for asthmatics with BDR.
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Affiliation(s)
- Chang-Gyu Jung
- Department of Allergy and Clinical Immunology, Keimyung University School of Medicine, Daegu, South Korea
| | - Thi Bich Tra Cao
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea
| | - Quang Luu Quoc
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea
| | - Eun-Mi Yang
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea
| | - Ga-Young Ban
- Department of Pulmonary, Allergy, and Critical Care Medicine, Kangdong Sacred Heart Hospital, Hallym University College of Medicine, Seoul, South Korea
| | - Hae-Sim Park
- Department of Allergy and Clinical Immunology, Ajou University School of Medicine, Suwon, South Korea
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Liao W, Foo HYC, Tran TNQ, Chai CLL, Wong WSF. Calcaratarin D, a labdane diterpenoid, attenuates mouse asthma via modulating alveolar macrophage function. Br J Pharmacol 2023; 180:1056-1071. [PMID: 36440573 DOI: 10.1111/bph.15993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2022] [Revised: 10/04/2022] [Accepted: 11/16/2022] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND AND PURPOSE Alveolar macrophages (AMs) contribute to airway inflammation and remodelling in allergic asthma. Calcaratarin D (CalD), a labdane diterpenoid from rhizomes of the medicinal plant Alpinia calcarata, has recently been shown to possess anti-inflammatory properties. The present study evaluated protective effects of CalD in a house dust mite (HDM)-induced asthma mouse model. EXPERIMENTAL APPROACH The effects of CalD on AMs in contributing to anti-inflammatory effects in asthma were investigated through in vivo, ex vivo, and in vitro experiments. KEY RESULTS CalD reduced total bronchoalveolar lavage fluid and differential cell count, serum IgE levels, mucus hypersecretion, and airway hyperresponsiveness in HDM-challenged mice. Additionally, CalD affected a wide array of pro-inflammatory cytokines and chemokines and oxidative damage markers in isolated lung tissues. CalD suppressed the HDM-induced increase in Arg1 (M2 macrophage marker) in AMs from lung tissue and reduced lung polyamine levels. CalD weakened antigen presentation capability of AMs by reducing CD80 expression, reduced AM-derived CCL17 and CCL22 levels, and lessened Th2 cytokines from CD4+ T-cells from asthma lung digest. CalD blocked the HDM-induced FoxO1/IRF4 pathway and restored impaired the Nrf2/HO-1 antioxidant pathway in lung tissues. CalD inhibited IL-4/IL-13-stimulated JAK1/STAT6 pathway, FoxO1 protein expression, and chemokine production in primary AMs. Structure-activity relationship study revealed the α,β-unsaturated γ-butyrolactone in CalD is capable of forming covalent bonds with cellular protein targets essential for its action. CONCLUSION AND IMPLICATIONS Our results demonstrate for the first time that CalD is a novel anti-inflammatory natural compound for allergic asthma that modulates AM function.
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Affiliation(s)
- Wupeng Liao
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore.,Singapore-HUJ Alliance for Research and Enterprise, National University of Singapore, Singapore
| | - Hazel Yu Ci Foo
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore.,Singapore-HUJ Alliance for Research and Enterprise, National University of Singapore, Singapore
| | - Thi Ngoc Quy Tran
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore.,Singapore-HUJ Alliance for Research and Enterprise, National University of Singapore, Singapore.,Drug Discovery and Optimization Platform, Yong Loo Lin School of Medicine, National University Health System, Singapore
| | - Christina Li Lin Chai
- Drug Discovery and Optimization Platform, Yong Loo Lin School of Medicine, National University Health System, Singapore.,Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore
| | - Wai Shiu Fred Wong
- Department of Pharmacology, Yong Loo Lin School of Medicine, National University Health System, Singapore.,Singapore-HUJ Alliance for Research and Enterprise, National University of Singapore, Singapore.,Drug Discovery and Optimization Platform, Yong Loo Lin School of Medicine, National University Health System, Singapore
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Wise SK, Damask C, Roland LT, Ebert C, Levy JM, Lin S, Luong A, Rodriguez K, Sedaghat AR, Toskala E, Villwock J, Abdullah B, Akdis C, Alt JA, Ansotegui IJ, Azar A, Baroody F, Benninger MS, Bernstein J, Brook C, Campbell R, Casale T, Chaaban MR, Chew FT, Chambliss J, Cianferoni A, Custovic A, Davis EM, DelGaudio JM, Ellis AK, Flanagan C, Fokkens WJ, Franzese C, Greenhawt M, Gill A, Halderman A, Hohlfeld JM, Incorvaia C, Joe SA, Joshi S, Kuruvilla ME, Kim J, Klein AM, Krouse HJ, Kuan EC, Lang D, Larenas-Linnemann D, Laury AM, Lechner M, Lee SE, Lee VS, Loftus P, Marcus S, Marzouk H, Mattos J, McCoul E, Melen E, Mims JW, Mullol J, Nayak JV, Oppenheimer J, Orlandi RR, Phillips K, Platt M, Ramanathan M, Raymond M, Rhee CS, Reitsma S, Ryan M, Sastre J, Schlosser RJ, Schuman TA, Shaker MS, Sheikh A, Smith KA, Soyka MB, Takashima M, Tang M, Tantilipikorn P, Taw MB, Tversky J, Tyler MA, Veling MC, Wallace D, Wang DY, White A, Zhang L. International consensus statement on allergy and rhinology: Allergic rhinitis - 2023. Int Forum Allergy Rhinol 2023; 13:293-859. [PMID: 36878860 DOI: 10.1002/alr.23090] [Citation(s) in RCA: 57] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/11/2022] [Accepted: 09/13/2022] [Indexed: 03/08/2023]
Abstract
BACKGROUND In the 5 years that have passed since the publication of the 2018 International Consensus Statement on Allergy and Rhinology: Allergic Rhinitis (ICAR-Allergic Rhinitis 2018), the literature has expanded substantially. The ICAR-Allergic Rhinitis 2023 update presents 144 individual topics on allergic rhinitis (AR), expanded by over 40 topics from the 2018 document. Originally presented topics from 2018 have also been reviewed and updated. The executive summary highlights key evidence-based findings and recommendation from the full document. METHODS ICAR-Allergic Rhinitis 2023 employed established evidence-based review with recommendation (EBRR) methodology to individually evaluate each topic. Stepwise iterative peer review and consensus was performed for each topic. The final document was then collated and includes the results of this work. RESULTS ICAR-Allergic Rhinitis 2023 includes 10 major content areas and 144 individual topics related to AR. For a substantial proportion of topics included, an aggregate grade of evidence is presented, which is determined by collating the levels of evidence for each available study identified in the literature. For topics in which a diagnostic or therapeutic intervention is considered, a recommendation summary is presented, which considers the aggregate grade of evidence, benefit, harm, and cost. CONCLUSION The ICAR-Allergic Rhinitis 2023 update provides a comprehensive evaluation of AR and the currently available evidence. It is this evidence that contributes to our current knowledge base and recommendations for patient evaluation and treatment.
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Affiliation(s)
- Sarah K Wise
- Otolaryngology-HNS, Emory University, Atlanta, Georgia, USA
| | - Cecelia Damask
- Otolaryngology-HNS, Private Practice, University of Central Florida, Lake Mary, Florida, USA
| | - Lauren T Roland
- Otolaryngology-HNS, Washington University, St. Louis, Missouri, USA
| | - Charles Ebert
- Otolaryngology-HNS, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Joshua M Levy
- Otolaryngology-HNS, Emory University, Atlanta, Georgia, USA
| | - Sandra Lin
- Otolaryngology-HNS, University of Wisconsin, Madison, Wisconsin, USA
| | - Amber Luong
- Otolaryngology-HNS, McGovern Medical School of the University of Texas, Houston, Texas, USA
| | - Kenneth Rodriguez
- Otolaryngology-HNS, University Hospitals Cleveland Medical Center, Cleveland, Ohio, USA
| | - Ahmad R Sedaghat
- Otolaryngology-HNS, University of Cincinnati, Cincinnati, Ohio, USA
| | - Elina Toskala
- Otolaryngology-HNS, Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | | | - Baharudin Abdullah
- Otolaryngology-HNS, Universiti Sains Malaysia, Kubang, Kerian, Kelantan, Malaysia
| | - Cezmi Akdis
- Immunology, Infectious Diseases, Swiss Institute of Allergy and Asthma Research, Davos, Switzerland
| | - Jeremiah A Alt
- Otolaryngology-HNS, University of Utah, Salt Lake City, Utah, USA
| | | | - Antoine Azar
- Allergy/Immunology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Fuad Baroody
- Otolaryngology-HNS, University of Chicago, Chicago, Illinois, USA
| | | | | | - Christopher Brook
- Otolaryngology-HNS, Harvard University, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA
| | - Raewyn Campbell
- Otolaryngology-HNS, Macquarie University, Sydney, NSW, Australia
| | - Thomas Casale
- Allergy/Immunology, University of South Florida College of Medicine, Tampa, Florida, USA
| | - Mohamad R Chaaban
- Otolaryngology-HNS, Cleveland Clinic, Case Western Reserve University, Cleveland, Ohio, USA
| | - Fook Tim Chew
- Allergy/Immunology, Genetics, National University of Singapore, Singapore, Singapore
| | - Jeffrey Chambliss
- Allergy/Immunology, University of Texas Southwestern, Dallas, Texas, USA
| | - Antonella Cianferoni
- Allergy/Immunology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | | | | | - Anne K Ellis
- Allergy/Immunology, Queens University, Kingston, ON, Canada
| | | | - Wytske J Fokkens
- Otorhinolaryngology, Amsterdam University Medical Centres, Amsterdam, Netherlands
| | | | - Matthew Greenhawt
- Allergy/Immunology, Pediatrics, University of Colorado, Children's Hospital Colorado, Aurora, Colorado, USA
| | - Amarbir Gill
- Otolaryngology-HNS, University of Michigan, Ann Arbor, Michigan, USA
| | - Ashleigh Halderman
- Otolaryngology-HNS, University of Texas Southwestern, Dallas, Texas, USA
| | - Jens M Hohlfeld
- Respiratory Medicine, Fraunhofer Institute for Toxicology and Experimental Medicine ITEM, Hannover Medical School, German Center for Lung Research, Hannover, Germany
| | | | - Stephanie A Joe
- Otolaryngology-HNS, University of Illinois Chicago, Chicago, Illinois, USA
| | - Shyam Joshi
- Allergy/Immunology, Oregon Health and Science University, Portland, Oregon, USA
| | | | - Jean Kim
- Otolaryngology-HNS, Johns Hopkins University, Baltimore, Maryland, USA
| | - Adam M Klein
- Otolaryngology-HNS, Emory University, Atlanta, Georgia, USA
| | - Helene J Krouse
- Otorhinolaryngology Nursing, University of Texas Rio Grande Valley, Edinburg, Texas, USA
| | - Edward C Kuan
- Otolaryngology-HNS, University of California Irvine, Orange, California, USA
| | - David Lang
- Allergy/Immunology, Cleveland Clinic, Cleveland, Ohio, USA
| | | | | | - Matt Lechner
- Otolaryngology-HNS, University College London, Barts Health NHS Trust, London, UK
| | - Stella E Lee
- Otolaryngology-HNS, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Victoria S Lee
- Otolaryngology-HNS, University of Illinois Chicago, Chicago, Illinois, USA
| | - Patricia Loftus
- Otolaryngology-HNS, University of California San Francisco, San Francisco, California, USA
| | - Sonya Marcus
- Otolaryngology-HNS, Stony Brook University, Stony Brook, New York, USA
| | - Haidy Marzouk
- Otolaryngology-HNS, State University of New York Upstate, Syracuse, New York, USA
| | - Jose Mattos
- Otolaryngology-HNS, University of Virginia, Charlottesville, Virginia, USA
| | - Edward McCoul
- Otolaryngology-HNS, Ochsner Clinic, New Orleans, Louisiana, USA
| | - Erik Melen
- Pediatric Allergy, Karolinska Institutet, Stockholm, Sweden
| | - James W Mims
- Otolaryngology-HNS, Wake Forest University, Winston Salem, North Carolina, USA
| | - Joaquim Mullol
- Otorhinolaryngology, Hospital Clinic Barcelona, Barcelona, Spain
| | - Jayakar V Nayak
- Otolaryngology-HNS, Stanford University, Palo Alto, California, USA
| | - John Oppenheimer
- Allergy/Immunology, Rutgers, State University of New Jersey, Newark, New Jersey, USA
| | | | - Katie Phillips
- Otolaryngology-HNS, University of Cincinnati, Cincinnati, Ohio, USA
| | - Michael Platt
- Otolaryngology-HNS, Boston University, Boston, Massachusetts, USA
| | | | | | - Chae-Seo Rhee
- Rhinology/Allergy, Seoul National University Hospital and College of Medicine, Seoul, Korea
| | - Sietze Reitsma
- Otolaryngology-HNS, University of Amsterdam, Amsterdam, Netherlands
| | - Matthew Ryan
- Otolaryngology-HNS, University of Texas Southwestern, Dallas, Texas, USA
| | - Joaquin Sastre
- Allergy, Fundacion Jiminez Diaz, University Autonoma de Madrid, Madrid, Spain
| | - Rodney J Schlosser
- Otolaryngology-HNS, Medical University of South Carolina, Charleston, South Carolina, USA
| | - Theodore A Schuman
- Otolaryngology-HNS, Virginia Commonwealth University, Richmond, Virginia, USA
| | - Marcus S Shaker
- Allergy/Immunology, Dartmouth Geisel School of Medicine, Lebanon, New Hampshire, USA
| | - Aziz Sheikh
- Primary Care, University of Edinburgh, Edinburgh, Scotland
| | - Kristine A Smith
- Otolaryngology-HNS, University of Utah, Salt Lake City, Utah, USA
| | - Michael B Soyka
- Otolaryngology-HNS, University of Zurich, University Hospital of Zurich, Zurich, Switzerland
| | - Masayoshi Takashima
- Otolaryngology-HNS, Houston Methodist Academic Institute, Houston, Texas, USA
| | - Monica Tang
- Allergy/Immunology, University of California San Francisco, San Francisco, California, USA
| | | | - Malcolm B Taw
- Integrative East-West Medicine, University of California Los Angeles, Westlake Village, California, USA
| | - Jody Tversky
- Allergy/Immunology, Johns Hopkins University, Baltimore, Maryland, USA
| | - Matthew A Tyler
- Otolaryngology-HNS, University of Minnesota, Minneapolis, Minnesota, USA
| | - Maria C Veling
- Otolaryngology-HNS, University of Texas Southwestern, Dallas, Texas, USA
| | - Dana Wallace
- Allergy/Immunology, Nova Southeastern University, Ft. Lauderdale, Florida, USA
| | - De Yun Wang
- Otolaryngology-HNS, National University of Singapore, Singapore, Singapore
| | - Andrew White
- Allergy/Immunology, Scripps Clinic, San Diego, California, USA
| | - Luo Zhang
- Otolaryngology-HNS, Beijing Tongren Hospital, Beijing, China
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Horn A, Bernstein DI, Okubo K, Dalgaard T, Hels O, Sørensen HF, Henriksen M, Azuma R, Mikler J, Nolte H. House Dust Mite Sublingual Immunotherapy Tablet Safety in Adolescents with Allergic Rhinoconjunctivitis: Clinical Trial Results. Ann Allergy Asthma Immunol 2023:S1081-1206(23)00171-0. [PMID: 36924936 DOI: 10.1016/j.anai.2023.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Revised: 03/03/2023] [Accepted: 03/06/2023] [Indexed: 03/15/2023]
Abstract
BACKGROUND The HDM sublingual immunotherapy (SLIT)-tablet is a treatment option for allergic rhinitis with/without conjunctivitis (AR/C) approved in adults worldwide and in adolescents in some countries. OBJECTIVE The MT-18 trial was conducted in adolescents to supplement existing adolescent HDM SLIT-tablet safety data. METHODS MT-18 (EUDRACT: :2020-000446-34) was a phase 3, open-label, single-arm, 28-day safety trial of daily HDM SLIT-tablet (12 SQ-HDM dose) in European adolescents (12-17 y) with HDM AR/C, with or without asthma. The primary endpoint was at least 1 treatment-emergent adverse event (TEAE). MT-18 results were compared with 12 SQ-HDM adolescent subpopulation data from previously described 1-year phase 3 trials conducted in North America (P001; clinicaltrials.gov:NCT01700192) or Japan (TO-203-3-2; JapicCTI:121848). RESULTS No treatment-related anaphylaxis, epinephrine administrations, severe local swellings, severe mouth or throat edema, or eosinophilic esophagitis occurred in the trials. For MT-18 (N=253), P001 (Nadolescents=189), and TO-203-3-2 (Nadolescents=206), the percentage of adolescents treated with 12 SQ-HDM reporting any TEAE was 88%, 95%, and 93%, respectively, and the percentage reporting any treatment-related AE (TRAE) was 86%, 93%, and 66%, respectively. The most common TRAEs were local application site reactions. Most TRAEs were mild in intensity and were typically experienced the first 1-2 days of treatment. There were no asthma-related TEAEs with the HDM SLIT-tablet. The safety profile appears similar between adolescents with or without asthma at baseline. CONCLUSION The HDM SLIT-tablet was well tolerated in European, North American, and Japanese adolescents with HDM AR/C, indicating safety of the HDM SLIT-tablet is insensitive to age or geographic region.
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Affiliation(s)
| | - David I Bernstein
- Bernstein Clinical Research Center and Division of Immunology, Allergy and Rheumatology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Kimihiro Okubo
- Department of Otolaryngology, Nippon Medical School, Nippon, Japan
| | | | - Ole Hels
- ALK-Abelló A/S, Hørsholm, Denmark
| | | | | | - Ryuji Azuma
- Torii Pharmaceutical Co., Ltd., Tokyo, Japan
| | - Jan Mikler
- Pediatric clinic, University hospital in Martin and Jessenius medical faculty in Martin, Commenius University, Bratislava, Slovakia
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Miller MH, Swaby LG, Vailoces VS, LaFratta M, Zhang Y, Zhu X, Hitchcock DJ, Jewett TJ, Zhang B, Tigno-Aranjuez JT. LMAN1 is a receptor for house dust mite allergens. Cell Rep 2023; 42:112208. [PMID: 36870056 PMCID: PMC10105285 DOI: 10.1016/j.celrep.2023.112208] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 12/01/2022] [Accepted: 02/15/2023] [Indexed: 03/05/2023] Open
Abstract
Development of therapies with the potential to change the allergic asthmatic disease course will require the discovery of targets that play a central role during the initiation of an allergic response, such as those involved in the process of allergen recognition. We use a receptor glycocapture technique to screen for house dust mite (HDM) receptors and identify LMAN1 as a candidate. We verify the ability of LMAN1 to directly bind HDM allergens and demonstrate that LMAN1 is expressed on the surface of dendritic cells (DCs) and airway epithelial cells (AECs) in vivo. Overexpression of LMAN1 downregulates NF-κB signaling in response to inflammatory cytokines or HDM. HDM promotes binding of LMAN1 to the FcRγ and recruitment of SHP1. Last, peripheral DCs of asthmatic individuals show a significant reduction in the expression of LMAN1 compared with healthy controls. These findings have potential implications for the development of therapeutic interventions for atopic disease.
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Affiliation(s)
- Madelyn H Miller
- Biotechnology and Immunology Research, Eli Lilly and Company, Lilly Corporate Center, Indianapolis, IN 46285, USA
| | - Lindsay G Swaby
- Immunity and Pathogenesis Division, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Vanessa S Vailoces
- Immunity and Pathogenesis Division, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Maggie LaFratta
- Immunity and Pathogenesis Division, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Yuan Zhang
- Genomic Medicine Institute, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195, USA
| | - Xiang Zhu
- Immunity and Pathogenesis Division, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Dorilyn J Hitchcock
- Immunity and Pathogenesis Division, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Travis J Jewett
- Immunity and Pathogenesis Division, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA
| | - Bin Zhang
- Genomic Medicine Institute, Cleveland Clinic Lerner Research Institute, Cleveland, OH 44195, USA
| | - Justine T Tigno-Aranjuez
- Immunity and Pathogenesis Division, Burnett School of Biomedical Sciences, College of Medicine, University of Central Florida, Orlando, FL 32827, USA.
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Liu J, Hu M, Tao X, He J, Wang J, Song Z, Wu L, Tang L, Chen Z, Xu X. Salivary IgG4 Levels Contribute to Assessing the Efficacy of Dermatophagoides pteronyssinus Subcutaneous Immunotherapy in Children with Asthma or Allergic Rhinitis. J Clin Med 2023; 12. [PMID: 36836200 DOI: 10.3390/jcm12041665] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 02/13/2023] [Accepted: 02/16/2023] [Indexed: 02/22/2023] Open
Abstract
At present, there are no effective, non-invasive, and objective indicators to evaluate the efficacy of pediatric house dust mite (HDM)-specific allergen immunotherapy (AIT). A prospective, observational study was performed in children with Dermatophagoides pteronyssinus (Der p) asthma and/or allergic rhinitis (AR). Forty-four patients received subcutaneous Der p-AIT for 2 years, and eleven patients received only symptomatic treatment. The patients needed to finish their questionnaires at each visit. Serum and salivary Der p-specific IgE, IgG4, and IgE-blocking factors (IgE-BFs) were measured at 0, 4, 12, and 24 months during AIT. A correlation between them was also evaluated. Subcutaneous Der p-specific AIT improved the clinical symptoms of children with asthma and/or AR. The Der p-specific IgE-BF significantly increased at 4, 12, and 24 months after AIT treatment. Serum and salivary Der p-specific IgG4 significantly increased with the time of the AIT treatment, and significant correlations between them at different time points were observed (p < 0.05). Furthermore, there were significant correlations (R = 0.31-0.62) between the serum Der p-specific IgE-BF and Der p-specific IgG4 at the baseline, 4, 12, and 24 months after the AIT (p < 0.01). The salivary Der p-specific IgG4 levels also demonstrated a certain correlation with the Der p-specific IgE-BF. Der p-specific AIT is an effective treatment for children with asthma and/or AR. Its effect was associated with increased serum and salivary-specific IgG4 levels, as well as an increased IgE-BF. Non-invasive salivary-specific IgG4 may be useful for monitoring the efficacy of AIT in children.
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Gan H, Luo W, Huang Z, Zhang T, Hou X, Chen Y, Zhu Z, Sun B. House dust mite components sensitization profile in China, a multi-centre study. Clin Exp Allergy 2023; 53:226-229. [PMID: 36519672 DOI: 10.1111/cea.14255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 12/23/2022]
Affiliation(s)
- Hui Gan
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, 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
| | - Wenting Luo
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, 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
| | - Zhifeng Huang
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, 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
| | - Teng Zhang
- Faculty of Health Sciences, University of Macau, Macau, China
| | - Xiangqing Hou
- Faculty of Health Sciences, University of Macau, Macau, China
| | - Yanwen Chen
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, 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
| | - Zheng Zhu
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, 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
| | - Baoqing Sun
- Department of Allergy and Clinical Immunology, Department of Laboratory, National Center for Respiratory Medicine, 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
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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] [What about the content of this article? (0)] [Affiliation(s)] [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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Zhai Y, Zheng P, Sun B, Li J, Wang B. Allergen-specific immunotherapy with Alutard SQ improves allergic inflammation in house-dust mites-induced allergic asthma rats through inactivation of the HMGB1/TLR4/NF-κB pathway. J Thorac Dis 2023; 15:77-89. [PMID: 36794148 PMCID: PMC9922602 DOI: 10.21037/jtd-22-715] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2022] [Accepted: 11/25/2022] [Indexed: 01/12/2023]
Abstract
Background Allergen-specific immunotherapy (AIT) is the only available safe, effective, and long-term treatment for allergic airway diseases, including allergic asthma. However, the potential molecular mechanism of AIT in ameliorating airway inflammation remains unknown. Methods Rats were sensitized and challenged with house dust mite (HDM) and administered with Alutard SQ or/and high mobility group box 1 (HMGB1) inhibitor, ammonium glycyrrhizinate (AMGZ) or HMGB1 lentivirus. The total and differential cell counts in rat bronchoalveolar lavage fluid (BALF) were detected. Hematoxylin and eosin staining (H&E) was performed to examine the pathological lesions in lung tissues. Enzyme-linked immunosorbent assay (ELISA) was performed to assess the expression of inflammatory factors in lungs, BALF, and serum. Quantitative real-time PCR (qRT-PCR) was used to measure the levels of inflammatory factors in the lungs. Western blot assay was used to evaluate the expression of HMGB1, Τoll-like receptor 4 (TLR4), and nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) in the lungs. Results Consequently, AIT with Alutard SQ attenuated airway inflammation, the total and differential cells in BALF, and expression of Th (T helper)2 related cytokines and transforming growth factor beta 1 (TGF-β1). The regimen also upregulated Th-1-related cytokine expression by inhibiting the HMGB1/TLR4/NF-κB pathway in HDM-induced asthmatic rats. Furthermore, AMGZ, a HMGB1 antagonist, amplified the functions of AIT with Alutard SQ in the asthma rat model. Nevertheless, overexpression of HMGB1 reversed the functions of AIT with Alutard SQ in the asthma rat model. Conclusions In summary, this work demonstrates the role of AIT with Alutard SQ, which inhibits the HMGB1/TLR4/NF-κB signaling pathway in allergic asthma management.
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Affiliation(s)
- Yingying Zhai
- Department of Pediatrics, Zhujiang Hospital, Southern Medical University, Guangzhou, China;,Department of Pediatrics, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Peiyan Zheng
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Baoqing Sun
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Jing Li
- Department of Allergy and Clinical Immunology, Guangzhou Institute of Respiratory Health, State Key Laboratory of Respiratory Disease, National Clinical Research Center of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Bin Wang
- Department of Pediatrics, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Tu W, Xiao X, Lu J, Liu X, Wang E, Yuan R, Wan R, Shen Y, Xu D, Yang P, Gong M, Gao P, Huang SK. Vanadium exposure exacerbates allergic airway inflammation and remodeling through triggering reactive oxidative stress. Front Immunol 2023; 13:1099509. [PMID: 36776398 PMCID: PMC9912158 DOI: 10.3389/fimmu.2022.1099509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Accepted: 12/22/2022] [Indexed: 01/28/2023] Open
Abstract
Background Metal components of environmental PM2.5 are associated with the exacerbation of allergic diseases like asthma. In our recent hospital-based population study, exposure to vanadium is shown to pose a significant risk for current asthma, but the causal relationship and its underlying molecular mechanisms remain unclear. Objective We sought to determine whether vanadium co-exposure can aggravate house dust mite (HDM)-induced allergic airway inflammation and remodeling, as well as investigate its related mechanisms. Methods Asthma mouse model was generated by using either vanadium pentoxide (V2O5) or HDM alone or in combination, in which the airway inflammation and remodeling was investigated. The effect of V2O5 co-exposure on HDM-induced epithelial-derived cytokine release and oxidative stress (ROS) generation was also examined by in vitro analyses. The role of ROS in V2O5 co-exposure-induced cytokine release and airway inflammation and remodeling was examined by using inhibitors or antioxidant. Results Compared to HDM alone, V2O5 co-exposure exacerbated HDM-induced airway inflammation with increased infiltration of inflammatory cells and elevated levels of Th1/Th2/Th17 and epithelial-derived (IL-25, TSLP) cytokines in the bronchoalveolar lavage fluids (BALFs). Intriguingly, V2O5 co-exposure also potentiated HDM-induced airway remodeling. Increased cytokine release was further supported by in vitro analysis in human bronchial epithelial cells (HBECs). Mechanistically, ROS, particularly mitochondrial-derived ROS, was significantly enhanced in HBECs after V2O5 co-exposure as compared to HDM challenge alone. Inhibition of ROS with its inhibitor N-acetyl-L-cysteine (NAC) and mitochondrial-targeted antioxidant MitoTEMPO blocked the increased epithelial release caused by V2O5 co-exposure. Furthermore, vitamin D3 as an antioxidant was found to inhibit V2O5 co-exposure-induced increased airway epithelial cytokine release and airway remodeling. Conclusions Our findings suggest that vanadium co-exposure exacerbates epithelial ROS generation that contribute to increased allergic airway inflammation and remodeling.
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Affiliation(s)
- Wei Tu
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China,Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Xiaojun Xiao
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Jiahua Lu
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Xiaoyu Liu
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Eryi Wang
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Ruyi Yuan
- The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Rongjun Wan
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States,Department of Respiratory Medicine, Xiangya Hospital, Central South University, Changsha, China
| | - Yingchun Shen
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States
| | - Damo Xu
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Pingchang Yang
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Miao Gong
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,The State Key Laboratory of Respiratory Disease for Allergy, Shenzhen Key Laboratory of Allergy & Immunology, Shenzhen University School of Medicine, Shenzhen, China
| | - Peisong Gao
- Johns Hopkins Asthma and Allergy Center, Johns Hopkins University School of Medicine, Baltimore, MD, United States,*Correspondence: Shau-Ku Huang, ; Peisong Gao,
| | - Shau-Ku Huang
- Department of Respiratory & Allergy, Third Affiliated Hospital of Shenzhen University, Shenzhen, China,National Institute of Environmental Health Sciences, National Health Research Institutes, Miaoli, Taiwan,*Correspondence: Shau-Ku Huang, ; Peisong Gao,
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Allam VSRR, Waern I, Taha S, Akula S, Wernersson S, Pejler G. Nafamostat has anti-asthmatic effects associated with suppressed pro-inflammatory gene expression, eosinophil infiltration and airway hyperreactivity. Front Immunol 2023; 14:1136780. [PMID: 37153590 PMCID: PMC10160450 DOI: 10.3389/fimmu.2023.1136780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2023] [Accepted: 04/07/2023] [Indexed: 05/09/2023] Open
Abstract
Introduction Asthma is characterized by an imbalance between proteases and their inhibitors. Hence, an attractive therapeutic option could be to interfere with asthma-associated proteases. Here we exploited this option by assessing the impact of nafamostat, a serine protease inhibitor known to neutralize mast cell tryptase. Methods Nafamostat was administered in a mouse model for asthma based on sensitization by house dust mite (HDM) extract, followed by the assessment of effects on airway hyperreactivity, inflammatory parameters and gene expression. Results We show that nafamostat efficiently suppressed the airway hyperreactivity in HDM-sensitized mice. This was accompanied by reduced infiltration of eosinophils and lymphocytes to the airways, and by lower levels of pro-inflammatory compounds within the airway lumen. Further, nafamostat had a dampening impact on goblet cell hyperplasia and smooth muscle layer thickening in the lungs of HDM-sensitized animals. To obtain deeper insight into the underlying mechanisms, a transcriptomic analysis was conducted. This revealed, as expected, that the HDM sensitization caused an upregulated expression of numerous pro-inflammatory genes. Further, the transcriptomic analysis showed that nafamostat suppressed the levels of multiple pro-inflammatory genes, with a particular impact on genes related to asthma. Discussion Taken together, this study provides extensive insight into the ameliorating effect of nafamostat on experimental asthma, and our findings can thereby provide a basis for the further evaluation of nafamostat as a potential therapeutic agent in human asthma.
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Affiliation(s)
- Venkata Sita Rama Raju Allam
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Ida Waern
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Sowsan Taha
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Srinivas Akula
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
| | - Sara Wernersson
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
- *Correspondence: Sara Wernersson, ; Gunnar Pejler,
| | - Gunnar Pejler
- Department of Medical Biochemistry and Microbiology, Uppsala University, Uppsala, Sweden
- *Correspondence: Sara Wernersson, ; Gunnar Pejler,
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Yepes-Nuñez JJ, Guyatt GH, Gómez-Escobar LG, Pérez-Herrera LC, Chu AWL, Ceccaci R, Acosta-Madiedo AS, Wen A, Moreno-López S, MacDonald M, Barrios M, Chu X, Islam N, Gao Y, Wong MM, Couban R, Garcia E, Chapman E, Oykhman P, Chen L, Winders T, Asiniwasis RN, Boguniewicz M, De Benedetto A, Ellison K, Frazier WT, Greenhawt M, Huynh J, Kim E, LeBovidge J, Lind ML, Lio P, Martin SA, O'Brien M, Ong PY, Silverberg JI, Spergel J, Wang J, Wheeler KE, Schneider L, Chu DK. Allergen immunotherapy for atopic dermatitis: Systematic review and meta-analysis of benefits and harms. J Allergy Clin Immunol 2023; 151:147-158. [PMID: 36191689 DOI: 10.1016/j.jaci.2022.09.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 08/22/2022] [Accepted: 09/01/2022] [Indexed: 02/04/2023]
Abstract
BACKGROUND Atopic dermatitis (AD, eczema) is driven by a combination of skin barrier defects, immune dysregulation, and extrinsic stimuli such as allergens, irritants, and microbes. The role of environmental allergens (aeroallergens) in triggering AD remains unclear. OBJECTIVE We systematically synthesized evidence regarding the benefits and harms of allergen immunotherapy (AIT) for AD. METHODS As part of the 2022 American Academy of Allergy, Asthma & Immunology/American College of Allergy, Asthma and Immunology Joint Task Force on Practice Parameters AD Guideline update, we searched the MEDLINE, EMBASE, CENTRAL, CINAHL, LILACS, Global Resource for Eczema Trials, and Web of Science databases from inception to December 2021 for randomized controlled trials comparing subcutaneous immunotherapy (SCIT), sublingual immunotherapy (SLIT), and/or no AIT (placebo or standard care) for guideline panel-defined patient-important outcomes: AD severity, itch, AD-related quality of life (QoL), flares, and adverse events. Raters independently screened, extracted data, and assessed risk of bias in duplicate. We synthesized intervention effects using frequentist and Bayesian random-effects models. The GRADE approach determined the quality of evidence. RESULTS Twenty-three randomized controlled trials including 1957 adult and pediatric patients sensitized primarily to house dust mite showed that add-on SCIT and SLIT have similar relative and absolute effects and likely result in important improvements in AD severity, defined as a 50% reduction in SCORing Atopic Dermatitis (risk ratio [95% confidence interval] 1.53 [1.31-1.78]; 26% vs 40%, absolute difference 14%) and QoL, defined as an improvement in Dermatology Life Quality Index by 4 points or more (risk ratio [95% confidence interval] 1.44 [1.03-2.01]; 39% vs 56%, absolute difference 17%; both outcomes moderate certainty). Both routes of AIT increased adverse events (risk ratio [95% confidence interval] 1.61 [1.44-1.79]; 66% with SCIT vs 41% with placebo; 13% with SLIT vs 8% with placebo; high certainty). AIT's effect on sleep disturbance and eczema flares was very uncertain. Subgroup and sensitivity analyses were consistent with the main findings. CONCLUSIONS SCIT and SLIT to aeroallergens, particularly house dust mite, can similarly and importantly improve AD severity and QoL. SCIT increases adverse effects more than SLIT. These findings support a multidisciplinary and shared decision-making approach to optimally managing AD.
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Affiliation(s)
| | - Gordon H Guyatt
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton; Department of Health Research Methods, Evidence and Impact, Hamilton
| | | | | | - Alexandro W L Chu
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton
| | - Renata Ceccaci
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton
| | | | - Aaron Wen
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton
| | | | - Margaret MacDonald
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton
| | | | - Xiajing Chu
- Department of Health Research Methods, Evidence and Impact, Hamilton; Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou
| | - Nazmul Islam
- Department of Health Research Methods, Evidence and Impact, Hamilton; Department of Public Health, College of Health Sciences, QU Health, Qatar University, Doha
| | - Ya Gao
- Department of Health Research Methods, Evidence and Impact, Hamilton; Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou
| | - Melanie M Wong
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton
| | - Rachel Couban
- Department of Health Research Methods, Evidence and Impact, Hamilton
| | | | | | - Paul Oykhman
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton
| | - Lina Chen
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton; University of Ottawa, Ottawa
| | | | | | - Mark Boguniewicz
- National Jewish Health, Denver; University of Colorado School of Medicine, Aurora
| | - Anna De Benedetto
- Department of Dermatology, University of Rochester Medical Center, Rochester
| | | | | | | | - Joey Huynh
- Orthopedic Neurological Rehabilitation, Northridge
| | | | | | - Mary Laura Lind
- School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe
| | - Peter Lio
- Northwestern University Feinberg School of Medicine, Chicago
| | | | | | - Peck Y Ong
- Children's Hospital Los Angeles, University of Southern California, Los Angeles
| | - Jonathan I Silverberg
- Department of Dermatology, The George Washington University School of Medicine and Health Sciences, Washington
| | - Jonathan Spergel
- Division of Allergy and Immunology, Children's Hospital of Philadelphia, Department of Pediatrics, Perelman School of Medicine at University of of Pennsylvania, Philadelphia
| | - Julie Wang
- Icahn School of Medicine at Mount Sinai, New York
| | | | | | - Derek K Chu
- Department of Medicine, McMaster University, and Evidence in Allergy Group, Hamilton; Department of Health Research Methods, Evidence and Impact, Hamilton; Research Institute of St Joe's Hamilton, Hamilton.
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Zemelka-Wiacek M, Kosowska A, Winiarska E, Sobanska E, Jutel M. Validated allergen exposure chamber is plausible tool for the assessment of house dust mite-triggered allergic rhinitis. Allergy 2023; 78:168-177. [PMID: 35980665 PMCID: PMC10087469 DOI: 10.1111/all.15485] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Revised: 07/11/2022] [Accepted: 08/02/2022] [Indexed: 12/30/2022]
Abstract
BACKGROUND Allergen exposure chamber (AEC) is a clinical facility that allows exposure to allergenic airborne particles in controlled environment. Although AECs offer stable levels of airborne allergens, the validation of symptoms and other endpoints induced by allergen challenge is key for their recommendation as a plausible tool for the assessment of patients, especially in clinical research. This study aimed to demonstrate the reproducibility of defined clinical endpoints after AEC house dust mite (HDM) challenge under optimal conditions in patients with allergic rhinitis (AR). METHOD HDM was distributed at different concentrations. The assessment was subjective by the patients: total nasal symptom score (TNSS), visual analog scale (VAS), and objective by the investigator: acoustic rhinometry, peak nasal inspiratory flow (PNIF), and nasal secretion weight. Safety was assessed clinically and by peak expiratory flow rate (PEFR) and forced expiratory volume in the first second (FEV1 ). RESULTS Constant environment: temperature, humidity, and carbon dioxide (CO2 ) concentration were maintained during all challenges. The concentration of HDM on average remained stable within the targeted values: 1000, 3000, 5000, 7000 particles (p)/m3 . Most symptoms were observed at concentrations 3000 p/m3 or higher. The symptoms severity and other endpoints results were reproducible. 5000 p/m3 , and challenge duration of 120 min were found optimal. The procedure was safe with no lung function abnormalities due to challenge. CONCLUSION HDM challenge in ALL-MED AEC offers a safe and reliable method for inducing symptoms in AR patients for the use in controlled clinical studies including allergen immunotherapy.
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Affiliation(s)
| | - Anna Kosowska
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland.,ALL-MED Medical Research Institute, Wroclaw, Poland
| | - Ewa Winiarska
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland
| | - Ewa Sobanska
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland
| | - Marek Jutel
- Department of Clinical Immunology, Wroclaw Medical University, Wroclaw, Poland.,ALL-MED Medical Research Institute, Wroclaw, Poland
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48
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Irahara M, Yamamoto-Hanada K, Sato M, Saito-Abe M, Miyaji Y, Yang L, Nishizato M, Kumasaka N, Mezawa H, Ohya Y. Endotoxin concentration and persistent eczema in early childhood. J Dermatol 2022; 50:646-655. [PMID: 36578125 DOI: 10.1111/1346-8138.16686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Revised: 11/16/2022] [Accepted: 12/05/2022] [Indexed: 12/30/2022]
Abstract
Although endotoxin concentration in the environment is negatively associated with atopic dermatitis (AD) onset in early childhood, the association between endotoxin concentration in the environment and eczema resolution in children with preexisting eczema is unclear. The aim of this study was to evaluate the association between endotoxin concentration in house dust and eczema persistence in young children. The authors used data from children participating in JECS (Japan Environment and Children's Study). In children who had AD or AD-like lesions at the age of 1 year, the authors investigated the association between the prevalence of eczema at the age of 3 years and endotoxin concentration (categorized by quartiles) in the dust on children's mattresses at the ages of 1.5 and 3 years. This study included 605 children. Eczema was significantly less prevalent among children whose mattresses were in the second and third quartiles of endotoxin concentration when they were 18 months old than among children whose mattresses were in the first quartile (adjusted odds ratio, 0.57 [95% confidence interval, 0.35-0.93] and adjusted odds ratio, 0.49 [95% confidence interval, 0.29-0.83], respectively). Moreover, of the children with eczema at age 3 years, those whose mattresses had endotoxin concentrations in the first quartile had significantly worse sleep disturbance caused by itchy rash (>1 time per week) than did those whose mattresses were in the third and fourth quartiles (20.0% vs 3.3% and 3.7%, both p values < 0.01). The findings indicate that low endotoxin exposure is associated with a higher prevalence of persistent eczema during early childhood.
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Affiliation(s)
- Makoto Irahara
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Kiwako Yamamoto-Hanada
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Miori Sato
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Mayako Saito-Abe
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Yumiko Miyaji
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Limin Yang
- Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Minaho Nishizato
- Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Natsuhiko Kumasaka
- Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Hidetohi Mezawa
- Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
| | - Yukihiro Ohya
- Allergy Center, National Center for Child Health and Development, Tokyo, Japan.,Medical Support Center for the Japan Environment and Children's Study, National Center for Child Health and Development, Tokyo, Japan
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49
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Daramola AK, Akinrinmade OA, Fajemisin EA, Naran K, Mthembu N, Hadebe S, Brombacher F, Huysamen AM, Fadeyi OE, Hunter R, Barth S. A recombinant Der p 1-specific allergen-toxin demonstrates superior killing of allergen-reactive IgG + hybridomas in comparison to its recombinant allergen-drug conjugate. Immunother Adv 2022; 3:ltac023. [PMID: 36789295 PMCID: PMC9912260 DOI: 10.1093/immadv/ltac023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022] Open
Abstract
Introduction Current treatments for asthma help to alleviate clinical symptoms but do not cure the disease. In this study, we explored a novel therapeutic approach for the treatment of house dust mite allergen Der p 1induced asthma by aiming to eliminate specific population of B-cells involved in memory IgE response to Der p 1. Materials and Methods To achieve this aim, we developed and evaluated two different proDer p 1-based fusion proteins; an allergen-toxin (proDer p 1-ETA) and an allergen-drug conjugate (ADC) (proDer p 1-SNAP-AURIF) against Der p 1 reactive hybridomas as an in vitro model for Der p 1 reactive human B-cells. The strategy involved the use of proDer p 1 allergen as a cell-specific ligand to selectively deliver the bacterial protein toxin Pseudomonas exotoxin A (ETA) or the synthetic small molecule toxin Auristatin F (AURIF) into the cytosol of Der p 1 reactive cells for highly efficient cell killing. Results As such, we demonstrated recombinant proDer p 1 fusion proteins were selectively bound by Der p 1 reactive hybridomas as well as primary IgG1+ B-cells from HDM-sensitized mice. The therapeutic potential of proDer p 1-ETA' and proDer p 1-SNAP-AURIF was confirmed by their selective cytotoxic activities on Der p 1 reactive hybridoma cells. The allergen-toxin demonstrated superior cytotoxic activity, with IC50 values in the single digit nanomolar value, compared to the ADC. Discussions Altogether, the proof-of-concept experiments in this study provide a promising approach for the treatment of patients with house dust mite-driven allergic asthma.
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Affiliation(s)
- A K Daramola
- South African Research Chair in Cancer Biotechnology, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,Medical Biotechnology & Immunotherapy Research Unit, Institute of Infectious Disease and Molecular Medicine (IDM), Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - O A Akinrinmade
- South African Research Chair in Cancer Biotechnology, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,Medical Biotechnology & Immunotherapy Research Unit, Institute of Infectious Disease and Molecular Medicine (IDM), Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,Department of Molecular Pharmacology, Albert Einstein College of Medicine, Bronx, NY 10461, USA
| | - E A Fajemisin
- South African Research Chair in Cancer Biotechnology, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,Medical Biotechnology & Immunotherapy Research Unit, Institute of Infectious Disease and Molecular Medicine (IDM), Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - K Naran
- South African Research Chair in Cancer Biotechnology, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,Medical Biotechnology & Immunotherapy Research Unit, Institute of Infectious Disease and Molecular Medicine (IDM), Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - N Mthembu
- Division of Immunology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - S Hadebe
- Division of Immunology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa
| | - F Brombacher
- Division of Immunology, Department of Pathology, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa,International Centre for Genetic Engineering and Biotechnology (ICGEB) and Institute of Infectious Diseases and Molecular Medicine (IDM), Division of Immunology, Faculty of Health Sciences, University of Cape Town, South Africa,Wellcome Centre for Infectious Diseases Research in Africa (CIDRI-Africa), Institute of Infectious Diseases and Molecular Medicine (IDM), Faculty of Health Sciences, University of Cape Town, South Africa
| | - A M Huysamen
- Department of Chemistry, Faculty of Sciences, University of Cape Town, Cape Town, South Africa
| | - O E Fadeyi
- Department of Chemistry, Faculty of Sciences, University of Cape Town, Cape Town, South Africa
| | - R Hunter
- Department of Chemistry, Faculty of Sciences, University of Cape Town, Cape Town, South Africa
| | - S Barth
- Correspondence: Stefan Barth, South African Research Chair in Cancer Biotechnology, Department of Integrative Biomedical Sciences, Faculty of Health Sciences, University of Cape Town, Barnard Fuller Building, Anzio Rd, Observatory, Cape Town, 7935 South Africa.
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50
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Shim D, Kim HJ, Lee J, Lee YM, Park JW, Yang S, Lee GH, Chung MJ, Chae HJ. Citrus junos Tanaka Peel Extract Ameliorates HDM-Induced Lung Inflammation and Immune Responses In Vivo. Nutrients 2022; 14. [PMID: 36501052 DOI: 10.3390/nu14235024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 11/21/2022] [Accepted: 11/22/2022] [Indexed: 11/29/2022] Open
Abstract
In the wake of the COVID-19 pandemic, lung disorders have become a major health concern for humans. Allergic asthma is the most prevalent form of asthma, and its treatments target the inflammation process. Despite significant developments in the diagnosis and management of allergic asthma, side effects are a major concern. Additionally, its extreme heterogeneity impedes the efficacy of the majority of treatments. Thus, newer, safer therapeutic substances, such as natural products, are desired. Citrus junos Tanaka has traditionally been utilized as an anti-inflammatory, sedative, antipyretic, and antitoxic substance. In this study, the protective effects of Citrus junos Tanaka peel extract (B215) against lung inflammation were examined, and efforts were made to understand the underlying protective mechanism using an HDM-induced lung inflammation murine model. The administration of B215 reduced immune cell infiltration in the lungs, plasma IgE levels, airway resistance, mucus hypersecretions, and cytokine production. These favorable effects alleviated HDM-induced lung inflammation by modulating the NF-κB signaling pathway. Hence, B215 might be a promising functional food to treat lung inflammation without adverse effects.
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